/* ==========================================================================
   芯明学堂 - 全局样式系统（浅色 · 蓝调版）
   ========================================================================== */

:root {
  /* 主品牌 - 科技蓝 */
  --color-primary: #1f63ff;
  --color-primary-dark: #1849c6;
  --color-primary-light: #4d8bff;
  --color-accent: #00b8d9;
  --color-gold: #f59e0b;

  /* 文本与中性色 */
  --color-navy: #0f1f3d;
  --color-navy-light: #1f2f54;
  --color-text: #142036;
  --color-text-soft: #475569;
  --color-text-muted: #7886a1;

  /* 背景与边框 */
  --color-bg: #ffffff;
  --color-bg-soft: #f4f7fc;     /* 整页 soft 区域 */
  --color-bg-soft-2: #eef3fb;   /* 更深一档浅蓝 */
  --color-bg-card: #ffffff;
  --color-border: #e3e9f3;
  --color-border-soft: #eef2f8;

  /* 状态色 */
  --color-success: #16a34a;
  --color-info: #2563eb;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 2px rgba(20, 32, 54, 0.04), 0 1px 3px rgba(20, 32, 54, 0.04);
  --shadow-md: 0 8px 20px rgba(31, 99, 255, 0.06), 0 2px 6px rgba(20, 32, 54, 0.04);
  --shadow-lg: 0 18px 38px rgba(31, 99, 255, 0.10), 0 6px 14px rgba(20, 32, 54, 0.05);
  --shadow-xl: 0 28px 60px rgba(31, 99, 255, 0.18);

  --max-w: 1240px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);

  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue",
    Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.home-page main {
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(31, 99, 255, 0.12), transparent 60%),
    radial-gradient(700px 400px at 5% 90%, rgba(0, 184, 217, 0.10), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #f3f7ff 60%, #eaf1fb 100%);
}

.home-page .section,
.home-page .section-soft,
.home-page .section-dark,
.home-page .cta {
  background: transparent;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary-dark);
}

h1,
h2,
h3,
h4 {
  color: var(--color-navy);
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 0.6em;
}

h1 {
  font-size: clamp(28px, 4.5vw, 46px);
}

h2 {
  font-size: clamp(24px, 3.4vw, 36px);
}

h3 {
  font-size: clamp(18px, 2.2vw, 22px);
}

p {
  margin: 0 0 1em;
  color: var(--color-text-soft);
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-sm {
  padding: 56px 0;
}

.section-soft {
  background: var(--color-bg);
}

/* 原 section-dark：改造为浅色蓝调强调区，保留类名以兼容现有 HTML */
.section-dark {
  background: var(--color-bg);
  color: var(--color-text);
  position: relative;
}

.section-dark h1,
.section-dark h2,
.section-dark h3 {
  color: var(--color-navy);
}

.section-dark p {
  color: var(--color-text-soft);
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(31, 99, 255, 0.08);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-dark .eyebrow {
  color: var(--color-primary);
  background: rgba(31, 99, 255, 0.1);
}

.section-title {
  text-align: center;
  margin: 0 auto 14px;
}

.section-subtitle {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
  color: var(--color-text-muted);
  font-size: 16px;
}

.section-dark .section-subtitle {
  color: var(--color-text-muted);
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  box-shadow: 0 8px 20px rgba(31, 99, 255, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  color: #fff;
  box-shadow: 0 12px 28px rgba(31, 99, 255, 0.36);
}

.btn-outline {
  background: #fff;
  color: var(--color-navy);
  border-color: var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(31, 99, 255, 0.04);
}

/* 浅色版的 ghost：保留之前类名，用于浅色背景上的次按钮 */
.btn-ghost {
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  border-color: rgba(31, 99, 255, 0.2);
}

.btn-ghost:hover {
  background: rgba(31, 99, 255, 0.12);
  color: var(--color-primary-dark);
  border-color: rgba(31, 99, 255, 0.35);
}

/* 当 ghost 放在深色区域（如 CTA 仍有的需要）才使用此变体 */
.btn-ghost.on-dark {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}
.btn-ghost.on-dark:hover {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
}

/* ============ Navbar ============ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(20, 32, 54, 0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 82px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--color-navy);
  font-size: 18px;
}

.navbar .brand {
  gap: 14px;
  font-size: 22px;
}

.brand:hover {
  color: var(--color-primary);
}

.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  font-size: 16px;
  box-shadow: 0 6px 14px rgba(31, 99, 255, 0.32);
}

.navbar .brand-logo {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  font-size: 20px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  display: block;
  padding: 10px 16px;
  color: var(--color-text);
  font-size: 16px;
  font-weight: 600;
  border-radius: 10px;
  transition: all var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
}

.nav-cta {
  display: flex;
  gap: 10px;
  align-items: center;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-navy);
  position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--color-navy);
}

.nav-toggle span::before {
  top: -6px;
}

.nav-toggle span::after {
  top: 6px;
}

/* ============ Hero（浅色 · 蓝白渐变 + 网格底纹） ============ */
.hero {
  position: relative;
  overflow: hidden;
  padding: 110px 0 120px;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(31, 99, 255, 0.12), transparent 60%),
    radial-gradient(700px 400px at 5% 90%, rgba(0, 184, 217, 0.10), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #f3f7ff 60%, #eaf1fb 100%);
  color: var(--color-text);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(31, 99, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 99, 255, 0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, #000 35%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 35%, transparent 75%);
}

.home-page .hero {
  background: transparent;
}

.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 940px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: #ffffff;
  border: 1px solid rgba(31, 99, 255, 0.18);
  border-radius: 999px;
  font-size: 13px;
  color: var(--color-primary-dark);
  margin-bottom: 20px;
  box-shadow: 0 4px 14px rgba(31, 99, 255, 0.08);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(31, 99, 255, 0.18);
}

.hero h1 {
  color: var(--color-navy);
  font-size: clamp(30px, 5vw, 56px);
  line-height: 1.18;
  margin-bottom: 22px;
  letter-spacing: -0.5px;
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: clamp(15px, 1.8vw, 18px);
  color: var(--color-text-soft);
  max-width: 740px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 60px;
  max-width: 880px;
  margin-inline: auto;
}

.hero-stat {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px 16px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.hero-stat:hover {
  transform: translateY(-3px);
  border-color: rgba(31, 99, 255, 0.25);
  box-shadow: var(--shadow-md);
}

.hero-stat .num {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-stat .label {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* ============ Page Header (内页) - 浅色版 ============ */
.page-hero {
  padding: 80px 0 60px;
  background:
    radial-gradient(800px 380px at 80% -20%, rgba(31, 99, 255, 0.10), transparent 60%),
    radial-gradient(600px 280px at 0% 100%, rgba(0, 184, 217, 0.08), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #f3f7ff 100%);
  color: var(--color-text);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(31, 99, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 99, 255, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, #000, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 100%);
  opacity: 0.7;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 18px;
}

.breadcrumb a {
  color: var(--color-text-soft);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.page-hero h1 {
  color: var(--color-navy);
  margin-bottom: 14px;
}

.page-hero .lead {
  font-size: 17px;
  color: var(--color-text-soft);
  max-width: 760px;
}

/* ============ Card / Grid ============ */
.grid {
  display: grid;
  gap: 24px;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(31, 99, 255, 0.25);
}

.card .icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 22px;
  margin-bottom: 16px;
  box-shadow: 0 6px 16px rgba(31, 99, 255, 0.28);
}

.card h3 {
  margin: 0 0 10px;
}

.card p {
  margin: 0;
  font-size: 14.5px;
  color: var(--color-text-soft);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-weight: 600;
  font-size: 14px;
}

.card-link::after {
  content: "→";
  transition: transform var(--transition);
}

.card-link:hover::after {
  transform: translateX(4px);
}

/* ============ 产教融合引擎：痛点与政策专题 ============ */
.pain-signal {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.72fr);
  gap: 24px;
  margin-bottom: 24px;
}

.pain-signal-main {
  position: relative;
  overflow: hidden;
  padding: 34px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(31, 99, 255, 0.16);
  background:
    radial-gradient(340px 180px at 100% 0%, rgba(255, 255, 255, 0.22), transparent 72%),
    linear-gradient(135deg, #1f63ff 0%, #3576ff 42%, #00b8d9 100%);
  box-shadow: var(--shadow-xl);
}

.pain-signal-label {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.pain-signal-main strong,
.pain-signal-main p,
.pain-signal-title {
  position: relative;
  z-index: 1;
  color: #fff;
}

.pain-signal-main strong {
  display: block;
  font-size: clamp(36px, 5vw, 54px);
  line-height: 1.05;
  margin-bottom: 10px;
}

.pain-signal-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.pain-signal-main p {
  margin: 0;
  max-width: 680px;
  color: rgba(255, 255, 255, 0.92);
}

.pain-signal-side {
  display: grid;
  gap: 16px;
}

.pain-mini-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(244, 248, 255, 0.98));
  border: 1px solid rgba(31, 99, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
}

.pain-mini-kicker,
.policy-kicker {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.pain-mini-card strong {
  display: block;
  font-size: 30px;
  line-height: 1.1;
  color: var(--color-navy);
  margin-bottom: 8px;
}

.pain-mini-card p {
  margin: 0;
  font-size: 14px;
}

.pain-grid {
  margin-top: 6px;
}

.pain-card {
  height: 100%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(244, 248, 255, 0.98));
  box-shadow: var(--shadow-md);
}

.pain-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.pain-card-index {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.pain-card-icon {
  font-size: 24px;
}

.pain-note {
  margin-top: 24px;
  padding: 20px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(31, 99, 255, 0.12);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(244, 248, 255, 0.98));
  color: var(--color-text-soft);
  box-shadow: var(--shadow-sm);
}

.policy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 24px;
}

.policy-callout {
  position: relative;
  overflow: hidden;
  padding: 34px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(31, 99, 255, 0.16);
  background:
    radial-gradient(360px 180px at 100% 0%, rgba(255, 255, 255, 0.18), transparent 72%),
    linear-gradient(135deg, #0f1f3d 0%, #1a4fc9 55%, #2a88ff 100%);
  box-shadow: var(--shadow-lg);
}

.policy-callout h3,
.policy-callout p {
  position: relative;
  z-index: 1;
  color: #fff;
}

.policy-callout p {
  margin-bottom: 22px;
  color: rgba(255, 255, 255, 0.9);
}

.policy-tags {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.policy-tags span {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
}

.policy-stack {
  display: grid;
  gap: 16px;
}

.policy-card {
  height: 100%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(244, 248, 255, 0.98));
  box-shadow: var(--shadow-md);
}

.policy-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 6px;
}

.policy-date {
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}

@media (max-width: 980px) {
  .pain-signal,
  .policy-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .pain-signal-main,
  .policy-callout {
    padding: 26px;
  }

  .pain-signal-main strong {
    font-size: 34px;
  }

  .policy-card-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}

/* ============ 首页动态数据展厅 ============ */
.data-hall {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.data-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.95fr);
  gap: 24px;
}

.data-stage-main {
  position: relative;
  overflow: hidden;
  padding: 34px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(31, 99, 255, 0.16);
  background:
    radial-gradient(320px 180px at 100% 0%, rgba(255, 255, 255, 0.25), transparent 70%),
    linear-gradient(135deg, #1f63ff 0%, #3576ff 45%, #00b8d9 100%);
  box-shadow: var(--shadow-xl);
}

.data-stage-main::after {
  content: "";
  position: absolute;
  inset: auto -40px -60px auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  filter: blur(6px);
}

.data-stage-label {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.data-stage-main h3,
.data-stage-main p {
  position: relative;
  z-index: 1;
  color: #fff;
}

.data-stage-main h3 {
  font-size: clamp(24px, 3vw, 34px);
  margin: 0 0 14px;
  max-width: 700px;
}

.data-stage-main p {
  max-width: 660px;
  margin-bottom: 24px;
  color: rgba(255, 255, 255, 0.9);
}

.data-stage-tags {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.data-stage-tags span {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
}

.data-stage-side {
  display: grid;
  gap: 16px;
}

.data-mini-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(244, 248, 255, 0.96));
  border: 1px solid rgba(31, 99, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 22px 22px 20px;
  box-shadow: var(--shadow-md);
}

.data-mini-kicker {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.data-mini-card strong {
  display: block;
  font-size: 28px;
  line-height: 1.15;
  color: var(--color-navy);
  margin-bottom: 8px;
}

.data-mini-card p {
  margin: 0;
  font-size: 14px;
}

.data-metrics {
  margin-top: 4px;
}

.metric-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(245, 249, 255, 0.98));
  box-shadow: var(--shadow-md);
}

.metric-topline {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.1px;
  text-transform: uppercase;
}

.metric-card h3 {
  font-size: clamp(28px, 3vw, 36px);
  margin-bottom: 12px;
}

.metric-note {
  display: block;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(31, 99, 255, 0.08);
  color: var(--color-text-muted);
  font-size: 13px;
  line-height: 1.6;
}

.data-insight-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.data-insight {
  padding: 22px 22px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
}

.data-insight-title {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-navy);
}

.data-insight p {
  margin: 0;
  font-size: 14px;
}

/* ============ 首页核心场景 ============ */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.scenario-card {
  position: relative;
  padding: 28px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(31, 99, 255, 0.12);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(242, 247, 255, 0.95));
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.scenario-card:hover {
  transform: translateY(-4px);
  border-color: rgba(31, 99, 255, 0.24);
  box-shadow: var(--shadow-lg);
}

.scenario-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.scenario-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-size: 22px;
  box-shadow: 0 8px 18px rgba(31, 99, 255, 0.22);
}

.scenario-tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.scenario-card h3 {
  margin-bottom: 10px;
}

.scenario-card p {
  margin-bottom: 18px;
}

.scenario-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.scenario-card li {
  position: relative;
  padding-left: 18px;
  color: var(--color-text-soft);
  font-size: 14px;
  line-height: 1.7;
}

.scenario-card li + li {
  margin-top: 10px;
}

.scenario-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
}

.scenario-band {
  margin-top: 26px;
  padding: 20px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(31, 99, 255, 0.12);
  background: rgba(255, 255, 255, 0.72);
}

.scenario-band-title {
  margin-bottom: 14px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-navy);
}

.scenario-band-items {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.scenario-band-items span {
  display: inline-flex;
  align-items: center;
  padding: 9px 14px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid rgba(31, 99, 255, 0.1);
  color: var(--color-text-soft);
  font-size: 14px;
}

/* ============ Feature pillars (主页三大支柱) ============ */
.pillar {
  position: relative;
  display: block;
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  text-align: left;
  overflow: hidden;
  transition: all var(--transition);
  color: inherit;
  text-decoration: none;
}

.pillar::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.pillar:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(31, 99, 255, 0.25);
}

.pillar:focus-visible {
  outline: 3px solid rgba(31, 99, 255, 0.28);
  outline-offset: 3px;
}

.pillar .num {
  font-size: 13px;
  letter-spacing: 2px;
  font-weight: 700;
  color: var(--color-primary);
}

.pillar h3 {
  font-size: 22px;
  margin: 10px 0 12px;
}

.pillar ul {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
}

.pillar li {
  padding: 8px 0;
  border-top: 1px dashed var(--color-border);
  color: var(--color-text-soft);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.pillar li::before {
  content: "✓";
  color: var(--color-primary);
  font-weight: 800;
}

.pillar li:first-child {
  border-top: none;
}

/* ============ Hero marquee (公告条) ============ */
.hero-marquee {
  margin: 30px auto 0;
  max-width: 880px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(31, 99, 255, 0.16);
  border-radius: 999px;
  padding: 10px 22px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--color-text-soft);
  box-shadow: 0 6px 18px rgba(31, 99, 255, 0.06);
}

.hero-marquee b {
  color: var(--color-primary);
  font-weight: 700;
  margin-right: 4px;
}

.hero-marquee .marquee-sep {
  color: rgba(31, 99, 255, 0.35);
}

.hero-marquee .marquee-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.18);
  animation: marquee-pulse 1.8s ease-in-out infinite;
}

@keyframes marquee-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .6; transform: scale(.85); }
}

/* ============ Section head (左右布局：标题+按钮) ============ */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.section-head > div {
  flex: 1 1 480px;
  min-width: 0;
}

.section-head .eyebrow {
  margin-bottom: 12px;
}

.section-head .section-head-title {
  font-size: clamp(22px, 2.8vw, 30px);
  color: var(--color-navy);
  margin: 0 0 8px;
  line-height: 1.3;
}

.section-head .section-head-sub {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 15px;
  max-width: 720px;
}

.section-head .btn {
  flex-shrink: 0;
}

/* ============ 数字人课程卡片 ============ */
.dh-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.dh-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
  color: inherit;
  text-decoration: none;
}

.dh-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(31, 99, 255, 0.25);
}

.dh-card:focus-visible {
  outline: 3px solid rgba(31, 99, 255, 0.28);
  outline-offset: 3px;
}

.dh-avatar {
  height: 180px;
  position: relative;
  display: grid;
  place-items: center;
  background:
    radial-gradient(180px 120px at 50% 38%, rgba(255, 255, 255, 0.45), transparent 60%),
    linear-gradient(135deg, #1f63ff 0%, #4d8bff 100%);
  color: #fff;
  overflow: hidden;
}

.dh-avatar::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 18% 18%, rgba(255, 255, 255, 0.18) 0, transparent 38%),
    radial-gradient(circle at 82% 82%, rgba(0, 184, 217, 0.32) 0, transparent 42%);
  pointer-events: none;
}

.dh-avatar.v2 {
  background:
    radial-gradient(180px 120px at 50% 38%, rgba(255, 255, 255, 0.45), transparent 60%),
    linear-gradient(135deg, #0ea5e9 0%, #14b8a6 100%);
}

.dh-avatar.v3 {
  background:
    radial-gradient(180px 120px at 50% 38%, rgba(255, 255, 255, 0.42), transparent 60%),
    linear-gradient(135deg, #6366f1 0%, #a78bfa 100%);
}

.dh-avatar.v4 {
  background:
    radial-gradient(180px 120px at 50% 38%, rgba(255, 255, 255, 0.45), transparent 60%),
    linear-gradient(135deg, #f97316 0%, #f43f5e 100%);
}

.dh-avatar .dh-figure {
  position: relative;
  z-index: 1;
  width: 92px;
  height: 92px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ffffff 0%, #d6e6ff 100%);
  color: var(--color-primary);
  display: grid;
  place-items: center;
  font-size: 36px;
  font-weight: 800;
  box-shadow: 0 14px 30px rgba(15, 31, 61, 0.2);
}

.dh-avatar.v2 .dh-figure { color: #0e7490; }
.dh-avatar.v3 .dh-figure { color: #4f46e5; }
.dh-avatar.v4 .dh-figure { color: #c2410c; }

.dh-avatar .dh-figure::after {
  content: "";
  position: absolute;
  bottom: 6px;
  right: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 3px #fff, 0 0 0 5px rgba(34, 197, 94, 0.4);
}

.dh-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  padding: 4px 10px;
  font-size: 11px;
  letter-spacing: 1px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.32);
  color: #fff;
  backdrop-filter: blur(6px);
  font-weight: 600;
}

.dh-tag-hot {
  background: rgba(245, 158, 11, 0.92);
  border-color: rgba(245, 158, 11, 0.5);
}

.dh-tag-new {
  background: rgba(34, 197, 94, 0.92);
  border-color: rgba(34, 197, 94, 0.5);
}

.dh-tag-pick {
  background: rgba(31, 99, 255, 0.92);
  border-color: rgba(31, 99, 255, 0.5);
}

.dh-avatar .dh-name {
  position: absolute;
  z-index: 2;
  bottom: 12px;
  left: 12px;
  right: 12px;
  font-size: 12.5px;
  letter-spacing: 0.3px;
  background: rgba(15, 31, 61, 0.45);
  padding: 6px 10px;
  border-radius: 8px;
  backdrop-filter: blur(6px);
  text-align: center;
}

.dh-body {
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.dh-body h3 {
  font-size: 16.5px;
  margin: 0 0 8px;
  line-height: 1.4;
}

.dh-body > p {
  font-size: 13.5px;
  color: var(--color-text-soft);
  margin: 0 0 14px;
  flex: 1;
}

.dh-meta {
  list-style: none;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding: 0;
  margin: 0 0 14px;
  font-size: 12px;
  color: var(--color-text-muted);
}

.dh-meta li {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.dh-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin-top: 24px;
  padding: 16px 22px;
  background: linear-gradient(135deg, #ffffff 0%, #f3f7ff 100%);
  border: 1px dashed rgba(31, 99, 255, 0.25);
  border-radius: var(--radius-md);
  flex-wrap: wrap;
}

.dh-foot-tip {
  font-size: 13.5px;
  color: var(--color-text-soft);
}

/* ============ 智能学伴 ============ */
.companion-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.95fr);
  gap: 22px;
  margin-bottom: 22px;
}

.companion-stage {
  position: relative;
  overflow: hidden;
  padding: 30px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(31, 99, 255, 0.14);
  background:
    radial-gradient(240px 140px at 100% 0%, rgba(255, 255, 255, 0.28), transparent 72%),
    linear-gradient(135deg, #0f54ee 0%, #2f74ff 56%, #44b9ff 100%);
  box-shadow: var(--shadow-lg);
}

.companion-stage::after {
  content: "";
  position: absolute;
  right: -46px;
  bottom: -56px;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.companion-stage-top,
.companion-stage h3,
.companion-stage p,
.companion-chat,
.companion-stage-foot {
  position: relative;
  z-index: 1;
}

.companion-stage-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.companion-stage-tag,
.companion-stage-status {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
}

.companion-stage-tag {
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
}

.companion-stage-status {
  background: rgba(15, 31, 61, 0.18);
  color: #eff6ff;
}

.companion-stage h3,
.companion-stage p {
  color: #fff;
}

.companion-stage h3 {
  font-size: clamp(24px, 3vw, 32px);
  margin-bottom: 12px;
}

.companion-stage p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 22px;
}

.companion-chat {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 22px;
}

.chat-bubble {
  max-width: 86%;
  padding: 14px 16px;
  border-radius: 18px;
  font-size: 14px;
  line-height: 1.65;
  box-shadow: 0 10px 24px rgba(15, 31, 61, 0.12);
}

.chat-bubble-user {
  align-self: flex-end;
  border-bottom-right-radius: 6px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--color-navy);
}

.chat-bubble-ai {
  align-self: flex-start;
  border-bottom-left-radius: 6px;
  background: rgba(15, 31, 61, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #fff;
  backdrop-filter: blur(8px);
}

.companion-stage-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.companion-stage-foot span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #fff;
  font-size: 12.5px;
  font-weight: 600;
}

.companion-side {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.companion-highlight,
.companion-mini-card,
.companion-card {
  background: #fff;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.companion-highlight {
  padding: 28px;
  border-radius: var(--radius-xl);
}

.companion-highlight-kicker,
.companion-mini-kicker {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 12px;
}

.companion-highlight h3 {
  font-size: 22px;
  margin: 0 0 14px;
}

.companion-task-list {
  margin: 0;
  padding-left: 18px;
  color: var(--color-text-soft);
}

.companion-task-list li + li {
  margin-top: 10px;
}

.companion-mini-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.companion-mini-card {
  padding: 22px 20px;
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.companion-mini-card:hover,
.companion-card:hover,
.companion-highlight:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(31, 99, 255, 0.22);
}

.companion-mini-card strong {
  display: block;
  font-size: 24px;
  color: var(--color-navy);
  margin-bottom: 6px;
}

.companion-mini-card p {
  margin: 0;
  font-size: 13.5px;
}

.companion-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.companion-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.companion-card-num {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 14px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  box-shadow: 0 10px 20px rgba(31, 99, 255, 0.22);
}

.companion-card h3 {
  font-size: 18px;
  margin: 0 0 10px;
}

.companion-card p {
  margin: 0;
  font-size: 14px;
}

/* ============ 智能知识库精选 ============ */
.kb-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.kb-feature {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 26px 28px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  color: inherit;
  text-decoration: none;
}

.kb-feature::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition);
}

.kb-feature:hover {
  border-color: rgba(31, 99, 255, 0.28);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.kb-feature:hover::before {
  opacity: 1;
}

.kb-feature:focus-visible {
  outline: 3px solid rgba(31, 99, 255, 0.28);
  outline-offset: 3px;
}

.kb-feature-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.kb-feature-cat {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  font-weight: 600;
  border-radius: 999px;
  font-size: 12.5px;
}

.kb-feature h3 {
  font-size: 17.5px;
  margin: 0 0 10px;
  line-height: 1.45;
}

.kb-feature > p {
  font-size: 13.5px;
  color: var(--color-text-soft);
  margin: 0 0 16px;
  flex: 1;
}

.kb-feature-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
  font-size: 12.5px;
  color: var(--color-text-muted);
  flex-wrap: wrap;
  gap: 8px;
}

.kb-quick {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  justify-content: center;
  margin-top: 28px;
  padding: 18px 22px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  max-width: 980px;
  margin-inline: auto;
}

.kb-quick-label {
  font-size: 13px;
  color: var(--color-text-muted);
  font-weight: 600;
}

.kb-quick-chip {
  font-size: 13px;
  color: var(--color-text-soft);
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--color-bg-soft);
  transition: all var(--transition);
}

.kb-quick-chip:hover {
  background: var(--color-primary);
  color: #fff;
}

/* ============ Logo 墙 ============ */
.partner-overview {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr);
  gap: 24px;
  margin-bottom: 26px;
}

.partner-highlight {
  position: relative;
  overflow: hidden;
  padding: 32px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(31, 99, 255, 0.14);
  background:
    radial-gradient(280px 160px at 100% 0%, rgba(255, 255, 255, 0.28), transparent 70%),
    linear-gradient(135deg, #0f54ee 0%, #2f74ff 55%, #44b9ff 100%);
  box-shadow: var(--shadow-lg);
}

.partner-highlight::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -40px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.partner-highlight-tag {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.partner-highlight h3,
.partner-highlight p {
  position: relative;
  z-index: 1;
  color: #fff;
}

.partner-highlight h3 {
  margin-bottom: 12px;
  font-size: clamp(24px, 3vw, 32px);
}

.partner-highlight p {
  margin-bottom: 22px;
  color: rgba(255, 255, 255, 0.9);
}

.partner-highlight-pills {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.partner-highlight-pills span {
  display: inline-flex;
  align-items: center;
  padding: 9px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
}

.partner-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.partner-metric {
  padding: 24px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: linear-gradient(180deg, #ffffff 0%, #f5f9ff 100%);
  box-shadow: var(--shadow-md);
}

.partner-metric strong {
  display: block;
  margin-bottom: 8px;
  color: var(--color-navy);
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.1;
}

.partner-metric span {
  color: var(--color-text-soft);
  font-size: 14px;
}

.partner-groups {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.partner-group {
  padding: 22px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(31, 99, 255, 0.1);
  background: rgba(255, 255, 255, 0.74);
}

.partner-group-title {
  margin-bottom: 16px;
  color: var(--color-navy);
  font-size: 15px;
  font-weight: 700;
}

.logo-band {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  align-items: center;
}

.logo-band .logo-cell {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 12px;
  text-align: center;
  font-weight: 700;
  color: var(--color-text-soft);
  font-size: 13.5px;
  letter-spacing: 0.3px;
  transition: all var(--transition);
  height: 64px;
  display: grid;
  place-items: center;
}

.logo-band .logo-cell:hover {
  border-color: rgba(31, 99, 255, 0.3);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

/* ============ Quotes / 口碑卡 ============ */
.testimonial-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.testimonial-stat {
  padding: 20px 18px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(31, 99, 255, 0.1);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(243, 248, 255, 0.95));
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.testimonial-stat strong {
  display: block;
  margin-bottom: 8px;
  color: var(--color-primary);
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.1;
}

.testimonial-stat span {
  color: var(--color-text-soft);
  font-size: 14px;
}

.quotes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.quote-card {
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  border: 1px solid rgba(31, 99, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: 24px 24px 22px;
  position: relative;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.quote-card::before {
  content: "\201C";
  position: absolute;
  top: 6px;
  right: 22px;
  font-size: 74px;
  line-height: 1;
  color: rgba(31, 99, 255, 0.12);
  font-family: Georgia, serif;
}

.quote-card:hover {
  border-color: rgba(31, 99, 255, 0.25);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.quote-role {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 14px;
}

.quote-text {
  font-size: 14.5px;
  color: var(--color-text);
  line-height: 1.8;
  margin: 0 0 16px;
}

.quote-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.quote-tags span {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid rgba(31, 99, 255, 0.1);
  color: var(--color-text-soft);
  font-size: 12px;
  font-weight: 600;
}

.quote-by {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
}

.quote-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}

.quote-avatar.v2 {
  background: linear-gradient(135deg, #0ea5e9, #14b8a6);
}

.quote-avatar.v3 {
  background: linear-gradient(135deg, #f97316, #f43f5e);
}

.quote-avatar.v4 {
  background: linear-gradient(135deg, #7c3aed, #2563eb);
}

.quote-meta {
  font-size: 13px;
  line-height: 1.4;
}

.quote-meta .who {
  color: var(--color-navy);
  font-weight: 600;
}

.quote-meta .where {
  color: var(--color-text-muted);
  font-size: 12.5px;
  margin-top: 2px;
}

/* ============ Data ticker (浅色版) ============ */
.ticker {
  background: linear-gradient(180deg, #f4f7fc 0%, #eaf1fb 100%);
  color: var(--color-navy);
  padding: 22px 0;
  overflow: hidden;
  position: relative;
  border-top: 1px solid var(--color-border-soft);
  border-bottom: 1px solid var(--color-border-soft);
}

.ticker-track {
  display: flex;
  gap: 40px;
  animation: ticker 36s linear infinite;
  white-space: nowrap;
  width: max-content;
}

.ticker-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}

.ticker-item .label {
  color: var(--color-text-muted);
}

.ticker-item .value {
  color: var(--color-primary);
  font-weight: 700;
}

@keyframes ticker {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* ============ Timeline (产教融合链路) ============ */
.timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-top: 30px;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 30px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  z-index: 0;
}

.tl-step {
  position: relative;
  z-index: 1;
  text-align: center;
}

.tl-dot {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--color-primary);
  color: var(--color-primary);
  display: grid;
  place-items: center;
  margin: 0 auto 14px;
  font-weight: 800;
  font-size: 20px;
  box-shadow: 0 6px 16px rgba(31, 99, 255, 0.2);
}

.tl-step h4 {
  font-size: 15px;
  color: var(--color-navy);
  margin: 0 0 6px;
}

.tl-step p {
  font-size: 13px;
  color: var(--color-text-muted);
  margin: 0;
}

/* ============ Feature row (左右图文) ============ */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}

.feature-row.reverse {
  direction: rtl;
}

.feature-row.reverse > * {
  direction: ltr;
}

.feature-row .text h2 {
  margin-top: 0;
}

.feature-row .text ul {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
}

.feature-row .text li {
  padding-left: 28px;
  position: relative;
  margin-bottom: 12px;
  color: var(--color-text-soft);
  font-size: 15px;
}

.feature-row .text li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
}

.feature-row .text li::after {
  content: "✓";
  position: absolute;
  left: 4px;
  top: 6px;
  color: #fff;
  font-size: 11px;
  font-weight: 800;
}

.feature-visual {
  background: linear-gradient(135deg, #ffffff 0%, #f4f7fc 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

/* 旧 feature-visual.dark 改为深蓝调浅色卡（保留视觉对比） */
.feature-visual.dark {
  background:
    radial-gradient(400px 240px at 100% 0%, rgba(31, 99, 255, 0.10), transparent 60%),
    linear-gradient(135deg, #f3f7ff, #eaf1fb);
  border-color: rgba(31, 99, 255, 0.18);
  color: var(--color-text);
}

/* Dashboard mock (智算资源监控) - 浅色版 */
.dashboard-mock {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.dashboard-mock .stat {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 16px;
  box-shadow: var(--shadow-sm);
}

.dashboard-mock .stat .label {
  font-size: 12px;
  color: var(--color-text-muted);
}

.dashboard-mock .stat .value {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-navy);
  margin-top: 4px;
}

.dashboard-mock .stat .bar {
  height: 6px;
  background: rgba(31, 99, 255, 0.08);
  border-radius: 999px;
  margin-top: 10px;
  overflow: hidden;
}

.dashboard-mock .stat .bar > i {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

/* Diff compare */
.diff {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.diff > div {
  border-radius: 12px;
  padding: 18px;
  border: 1px solid var(--color-border);
}

.diff .before {
  background: #f7faff;
}

.diff .after {
  background: linear-gradient(135deg, rgba(31, 99, 255, 0.06), rgba(0, 184, 217, 0.08));
  border-color: rgba(31, 99, 255, 0.2);
}

.diff h5 {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--color-text-muted);
}

.diff .metric {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-navy);
}

.diff .after .metric {
  color: var(--color-primary);
}

/* ============ Course grid ============ */
.course-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 36px;
}

.chip {
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: #fff;
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--color-text-soft);
  font-family: inherit;
}

.chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.chip.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.course-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.course-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(31, 99, 255, 0.25);
}

.course-thumb {
  height: 160px;
  background: linear-gradient(135deg, #1f63ff, #4d8bff);
  position: relative;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 1px;
}

.course-thumb.alt-1 {
  background: linear-gradient(135deg, #2563eb, #4f46e5);
}

.course-thumb.alt-2 {
  background: linear-gradient(135deg, #0ea5e9, #14b8a6);
}

.course-thumb.alt-3 {
  background: linear-gradient(135deg, #6366f1, #a78bfa);
}

.course-thumb.alt-4 {
  background: linear-gradient(135deg, #0891b2, #22d3ee);
}

.course-thumb .tag {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 1px;
  backdrop-filter: blur(6px);
  text-shadow: none;
}

.course-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.course-body h3 {
  font-size: 17px;
  margin: 0 0 8px;
}

.course-body p {
  font-size: 13.5px;
  color: var(--color-text-soft);
  margin: 0 0 14px;
  flex: 1;
}

.course-meta {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--color-text-muted);
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
}

/* ============ AI Search box ============ */
.ai-search {
  background: linear-gradient(135deg, #ffffff 0%, #f4f7fc 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 38px 32px;
  box-shadow: var(--shadow-md);
  max-width: 880px;
  margin: 0 auto;
}

.ai-search-bar {
  display: flex;
  gap: 10px;
  padding: 8px;
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.ai-search-bar input {
  flex: 1;
  border: none;
  outline: none;
  padding: 14px 16px;
  font-size: 15px;
  background: transparent;
  color: var(--color-text);
  font-family: inherit;
}

.ai-search-bar input::placeholder {
  color: var(--color-text-muted);
}

.ai-suggest {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.ai-suggest .sg {
  padding: 6px 12px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-soft);
  cursor: pointer;
  transition: all var(--transition);
}

.ai-suggest .sg:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.ai-result {
  margin-top: 22px;
  padding: 22px;
  background: rgba(31, 99, 255, 0.04);
  border: 1px solid rgba(31, 99, 255, 0.18);
  border-radius: var(--radius-md);
  font-size: 14.5px;
  color: var(--color-text);
  display: none;
}

.ai-result.show {
  display: block;
  animation: fadeIn 0.4s ease;
}

.ai-result .src {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--color-text-muted);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ============ Knowledge categories ============ */
.kb-cats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.kb-cat {
  padding: 22px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  cursor: pointer;
}

.kb-cat:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.kb-cat h4 {
  margin: 0 0 6px;
  font-size: 16px;
}

.kb-cat .count {
  font-size: 12px;
  color: var(--color-text-muted);
}

.kb-cat .tags {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.kb-cat .tags span {
  font-size: 11.5px;
  padding: 3px 8px;
  background: var(--color-bg-soft);
  border-radius: 4px;
  color: var(--color-text-soft);
}

/* ============ Cases ============ */
.case-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}

.case-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(31, 99, 255, 0.25);
}

/* 浅色版案例 banner：用浅蓝渐变 + 网格底纹 */
.case-banner {
  padding: 22px;
  background:
    radial-gradient(300px 160px at 100% 0%, rgba(31, 99, 255, 0.12), transparent 60%),
    linear-gradient(135deg, #f3f7ff, #eaf1fb);
  color: var(--color-navy);
  border-bottom: 1px solid var(--color-border-soft);
}

.case-banner .industry {
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--color-primary);
  font-weight: 600;
}

.case-banner h3 {
  color: var(--color-navy);
  font-size: 18px;
  margin: 6px 0 0;
}

.case-body {
  padding: 22px;
}

.case-body .stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.case-body .stat .v {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-primary);
}

.case-body .stat .l {
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ============ News list ============ */
.news-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 22px;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #fff;
  margin-bottom: 16px;
  transition: all var(--transition);
}

.news-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(31, 99, 255, 0.25);
}

.news-thumb {
  height: 130px;
  background: linear-gradient(135deg, #1f63ff, #4d8bff);
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
}

.news-thumb.alt {
  background: linear-gradient(135deg, #2563eb, #4f46e5);
}

.news-thumb.alt2 {
  background: linear-gradient(135deg, #0ea5e9, #14b8a6);
}

.news-body h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.news-body .meta {
  font-size: 12.5px;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

/* ============ Security ============ */
.sec-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.sec-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sec-list li {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin-bottom: 12px;
  position: relative;
  padding-left: 56px;
}

.sec-list li::before {
  content: "🔒";
  position: absolute;
  left: 18px;
  top: 16px;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(31, 99, 255, 0.08);
  display: grid;
  place-items: center;
  color: var(--color-primary);
  font-weight: 800;
  font-size: 14px;
}

.sec-list li strong {
  display: block;
  margin-bottom: 4px;
  color: var(--color-navy);
}

/* ============ Login form - 浅色 + 蓝调侧栏 ============ */
.login-shell {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  min-height: 600px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: #fff;
}

.login-side {
  background:
    radial-gradient(500px 280px at 0% 0%, rgba(31, 99, 255, 0.16), transparent 60%),
    radial-gradient(500px 280px at 100% 100%, rgba(0, 184, 217, 0.12), transparent 60%),
    linear-gradient(135deg, #f3f7ff 0%, #eaf1fb 100%);
  color: var(--color-text);
  padding: 56px 44px;
  position: relative;
  overflow: hidden;
}

.login-side::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(31, 99, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 99, 255, 0.06) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.7;
  pointer-events: none;
}

.login-side > * {
  position: relative;
  z-index: 1;
}

.login-side h2 {
  color: var(--color-navy);
  margin-bottom: 14px;
}

.login-side p {
  color: var(--color-text-soft);
}

.login-side ul {
  list-style: none;
  padding: 0;
  margin: 30px 0 0;
}

.login-side li {
  padding: 12px 0;
  border-top: 1px solid rgba(31, 99, 255, 0.12);
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--color-text);
  font-size: 14.5px;
}

.login-side li::before {
  content: "→";
  color: var(--color-primary);
  font-weight: 700;
}

.login-form {
  padding: 56px 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.login-form h2 {
  margin-bottom: 8px;
}

.login-form p {
  color: var(--color-text-muted);
  margin-bottom: 26px;
}

.role-switch {
  display: flex;
  gap: 8px;
  background: var(--color-bg-soft);
  padding: 6px;
  border-radius: var(--radius-md);
  margin-bottom: 22px;
}

.role-switch button {
  flex: 1;
  padding: 10px;
  border: none;
  background: transparent;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  color: var(--color-text-soft);
  font-family: inherit;
  transition: all var(--transition);
}

.role-switch button.active {
  background: #fff;
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  font-weight: 600;
}

.form-row {
  margin-bottom: 16px;
}

.form-row label {
  display: block;
  font-size: 13px;
  color: var(--color-text-soft);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 14.5px;
  font-family: inherit;
  background: #fff;
  color: var(--color-text);
  transition: border-color var(--transition);
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(31, 99, 255, 0.12);
}

.form-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 14px;
}

.btn-block {
  width: 100%;
  justify-content: center;
  padding: 14px;
  font-size: 15.5px;
  margin-top: 6px;
}

/* ============ Contact - 浅色版联系信息卡 ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.contact-info {
  background:
    radial-gradient(400px 220px at 100% 0%, rgba(31, 99, 255, 0.12), transparent 60%),
    linear-gradient(135deg, #f3f7ff 0%, #eaf1fb 100%);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
}

.contact-info h3 {
  color: var(--color-navy);
  margin-bottom: 14px;
}

.contact-info p {
  color: var(--color-text-soft);
}

.contact-info .info-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 0;
  border-top: 1px solid rgba(31, 99, 255, 0.12);
}

.contact-info .info-item:first-of-type {
  border-top: none;
  margin-top: 18px;
}

.contact-info .info-item .ic {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: #ffffff;
  border: 1px solid rgba(31, 99, 255, 0.15);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-size: 16px;
  color: var(--color-primary);
}

.contact-info .info-item .lbl {
  font-size: 12px;
  color: var(--color-text-muted);
}

.contact-info .info-item .val {
  font-size: 15px;
  color: var(--color-navy);
  font-weight: 600;
}

/* ============ Footer - 浅色版 ============ */
.site-footer {
  background: linear-gradient(180deg, #101a31 0%, #0b1428 100%);
  color: rgba(255, 255, 255, 0.78);
  padding: 64px 0 24px;
  margin-top: 60px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
  gap: 30px;
  margin-bottom: 40px;
}

.footer-brand .brand {
  color: #fff;
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.7;
}

.footer-col h5 {
  color: #fff;
  font-size: 14px;
  margin: 0 0 14px;
  font-weight: 600;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.72);
}

.footer-col a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 13.5px;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: #fff;
}

.footer-contact {
  padding: 24px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(31, 99, 255, 0.2) 0%, rgba(31, 99, 255, 0.08) 100%);
  border: 1px solid rgba(96, 149, 255, 0.3);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
}

.footer-contact h5 {
  font-size: 20px;
  margin-bottom: 16px;
}

.footer-contact ul {
  display: grid;
  gap: 12px;
}

.footer-contact li {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 15px;
}

.footer-contact strong {
  display: block;
  margin-bottom: 4px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.footer-contact .footer-phone {
  color: #fff;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
}

.footer-contact .footer-phone:hover {
  color: #cfe0ff;
}

.footer-contact-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  margin-top: 18px;
  padding: 0 18px;
  border-radius: 999px;
  background: #fff;
  color: var(--color-primary) !important;
  font-size: 15px !important;
  font-weight: 700;
  box-shadow: 0 12px 24px rgba(7, 18, 43, 0.2);
}

.footer-contact-link:hover {
  background: #edf4ff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.72);
}

.footer-bottom a:hover {
  color: #fff;
}

/* ============ 产品中心 · Hero 数据条 ============ */
.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.hero-pills .hp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid rgba(31, 99, 255, 0.18);
  color: var(--color-text-soft);
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 4px 10px rgba(31, 99, 255, 0.05);
}

.hero-pills .hp b {
  color: var(--color-primary);
  font-weight: 700;
}

/* ============ 产品中心 · 三大产品 Showcase ============ */
.product-showcase {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 32px 28px 26px;
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
}

.product-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0.85;
}

.product-card::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 99, 255, 0.08), transparent 70%);
  pointer-events: none;
  transition: all var(--transition);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(31, 99, 255, 0.26);
}

.product-card:focus-visible {
  outline: 3px solid rgba(31, 99, 255, 0.24);
  outline-offset: 3px;
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(31, 99, 255, 0.3);
}

.product-card:hover::after {
  transform: scale(1.4);
}

.product-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}

.product-card-icon {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-size: 26px;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  box-shadow: 0 10px 22px rgba(31, 99, 255, 0.28);
}

.product-card.v2 .product-card-icon {
  background: linear-gradient(135deg, #0ea5e9, #14b8a6);
  box-shadow: 0 10px 22px rgba(14, 165, 233, 0.28);
}

.product-card.v3 .product-card-icon {
  background: linear-gradient(135deg, #6366f1, #a78bfa);
  box-shadow: 0 10px 22px rgba(99, 102, 241, 0.28);
}

.product-card-num {
  font-size: 38px;
  font-weight: 800;
  line-height: 1;
  color: rgba(31, 99, 255, 0.12);
  font-family: "Helvetica Neue", Arial, sans-serif;
  letter-spacing: -1px;
}

.product-card.v2 .product-card-num { color: rgba(14, 165, 233, 0.16); }
.product-card.v3 .product-card-num { color: rgba(99, 102, 241, 0.16); }

.product-card-kicker {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.6px;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}

.product-card.v2 .product-card-kicker { background: rgba(14, 165, 233, 0.1); color: #0e7490; }
.product-card.v3 .product-card-kicker { background: rgba(99, 102, 241, 0.1); color: #4f46e5; }

.product-card h3 {
  position: relative;
  z-index: 1;
  font-size: 22px;
  margin: 0 0 10px;
}

.product-card > p {
  position: relative;
  z-index: 1;
  font-size: 14.5px;
  color: var(--color-text-soft);
  margin: 0 0 18px;
}

.product-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}

.product-pills span {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--color-bg-soft);
  color: var(--color-text-soft);
  font-size: 12.5px;
  font-weight: 600;
  border: 1px solid var(--color-border-soft);
}

.product-features {
  list-style: none;
  padding: 0;
  margin: 0 0 22px;
  position: relative;
  z-index: 1;
}

.product-features li {
  position: relative;
  padding: 9px 0 9px 26px;
  font-size: 14px;
  color: var(--color-text-soft);
  border-top: 1px dashed var(--color-border-soft);
  line-height: 1.5;
}

.product-features li:first-child {
  border-top: none;
}

.product-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  box-shadow: 0 0 0 3px rgba(31, 99, 255, 0.1);
}

.product-features li::after {
  content: "✓";
  position: absolute;
  left: 3px;
  top: 12px;
  color: #fff;
  font-size: 10px;
  font-weight: 800;
}

.product-card.v2 .product-features li::before {
  background: linear-gradient(135deg, #0ea5e9, #14b8a6);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.12);
}

.product-card.v3 .product-features li::before {
  background: linear-gradient(135deg, #6366f1, #a78bfa);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

.product-card-foot {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--color-border-soft);
  position: relative;
  z-index: 1;
}

.product-card-foot .btn {
  padding: 10px 18px;
  font-size: 13.5px;
}

.product-card-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.product-card-link:hover {
  color: var(--color-primary);
}

.product-card-link::after {
  content: "→";
  transition: transform var(--transition);
}

.product-card-link:hover::after {
  transform: translateX(3px);
}

/* ============ 产品矩阵对比表 ============ */
.compare-wrap {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 760px;
}

.compare-table thead th {
  background: linear-gradient(180deg, #f4f7fc 0%, #eaf1fb 100%);
  color: var(--color-navy);
  font-size: 14.5px;
  font-weight: 700;
  text-align: left;
  padding: 18px 22px;
  border-bottom: 1px solid var(--color-border);
}

.compare-table thead th:first-child {
  width: 180px;
  color: var(--color-text-muted);
  font-size: 12.5px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.compare-table thead th .ch {
  display: flex;
  align-items: center;
  gap: 10px;
}

.compare-table thead th .ch i {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  font-style: normal;
  font-size: 14px;
  font-weight: 800;
}

.compare-table thead th:nth-child(3) .ch i {
  background: linear-gradient(135deg, #0ea5e9, #14b8a6);
}

.compare-table thead th:nth-child(4) .ch i {
  background: linear-gradient(135deg, #6366f1, #a78bfa);
}

.compare-table tbody td {
  padding: 16px 22px;
  border-bottom: 1px solid var(--color-border-soft);
  color: var(--color-text-soft);
  vertical-align: top;
  line-height: 1.65;
}

.compare-table tbody tr:last-child td {
  border-bottom: none;
}

.compare-table tbody tr:hover td {
  background: rgba(31, 99, 255, 0.025);
}

.compare-table tbody th {
  text-align: left;
  padding: 16px 22px;
  background: #fbfcfe;
  color: var(--color-navy);
  font-weight: 600;
  font-size: 13.5px;
  border-bottom: 1px solid var(--color-border-soft);
  border-right: 1px solid var(--color-border-soft);
  width: 180px;
}

/* ============ 全景架构蓝图 - 蓝调卡片版 ============ */
.arch-blueprint {
  background: linear-gradient(180deg, #ffffff 0%, #f4f7fc 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-md);
}

.arch-layer {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 16px;
  align-items: stretch;
  margin-bottom: 14px;
}

.arch-layer:last-child {
  margin-bottom: 0;
}

.arch-layer-label {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 18px 18px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 18px rgba(31, 99, 255, 0.22);
  font-weight: 700;
  font-size: 15px;
}

.arch-layer-label .ll-sub {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 1.2px;
  opacity: 0.8;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.arch-layer-body {
  display: grid;
  gap: 12px;
}

.arch-layer-body.cols-1 { grid-template-columns: 1fr; }
.arch-layer-body.cols-3 { grid-template-columns: repeat(3, 1fr); }

.arch-block {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  font-size: 13.5px;
  color: var(--color-text-soft);
  line-height: 1.6;
  transition: all var(--transition);
}

.arch-block:hover {
  border-color: rgba(31, 99, 255, 0.25);
  background: #fbfcff;
  transform: translateY(-2px);
}

.arch-block strong {
  display: block;
  color: var(--color-navy);
  font-size: 14.5px;
  margin-bottom: 4px;
  font-weight: 700;
}

.arch-block .sub {
  color: var(--color-text-muted);
  font-size: 12.5px;
  display: block;
  margin-top: 4px;
}

.arch-block.accent-platform {
  background: linear-gradient(135deg, #eaf1fb 0%, #f3f7ff 100%);
  border-color: rgba(31, 99, 255, 0.2);
}

.arch-block.accent-platform strong {
  color: var(--color-primary-dark);
}

.arch-block.accent-base {
  background: linear-gradient(135deg, rgba(31, 99, 255, 0.04), rgba(0, 184, 217, 0.06));
  border-color: rgba(31, 99, 255, 0.18);
  border-style: dashed;
}

/* ============ 应用场景 · 角色卡片 ============ */
.role-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.role-card {
  position: relative;
  padding: 28px 24px 24px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition);
  overflow: hidden;
}

.role-card::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.role-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(31, 99, 255, 0.22);
}

.role-card:hover::before {
  transform: scaleX(1);
}

.role-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(31, 99, 255, 0.1), rgba(0, 184, 217, 0.08));
  color: var(--color-primary);
  font-size: 22px;
  margin-bottom: 16px;
}

.role-card h4 {
  margin: 0 0 6px;
  font-size: 17px;
  color: var(--color-navy);
}

.role-card .role-sub {
  font-size: 12.5px;
  color: var(--color-text-muted);
  margin-bottom: 14px;
  letter-spacing: 0.3px;
}

.role-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.role-card ul li {
  position: relative;
  padding: 6px 0 6px 16px;
  font-size: 13.5px;
  color: var(--color-text-soft);
  line-height: 1.55;
}

.role-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

/* ============ 服务保障条 ============ */
.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.service-item {
  padding: 22px;
  background: linear-gradient(180deg, #ffffff 0%, #fafcff 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  gap: 14px;
  align-items: flex-start;
  transition: all var(--transition);
}

.service-item:hover {
  border-color: rgba(31, 99, 255, 0.22);
  box-shadow: var(--shadow-sm);
}

.service-item .svi {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  display: grid;
  place-items: center;
  font-size: 18px;
  flex-shrink: 0;
}

.service-item h5 {
  margin: 0 0 4px;
  font-size: 14.5px;
  color: var(--color-navy);
  font-weight: 700;
}

.service-item p {
  margin: 0;
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.55;
}

@media (max-width: 1024px) {
  .product-showcase {
    grid-template-columns: 1fr;
  }
  .role-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .arch-layer {
    grid-template-columns: 1fr;
  }
  .arch-layer-label {
    flex-direction: row;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
  }
  .arch-layer-label .ll-sub {
    margin-bottom: 0;
  }
  .arch-layer-body.cols-3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .role-grid,
  .service-grid {
    grid-template-columns: 1fr;
  }
  .product-card-foot {
    flex-wrap: wrap;
  }
  .product-card-link {
    margin-left: 0;
  }
}

/* ============ CTA banner - 浅色蓝调版 ============ */
.cta {
  background: var(--color-bg);
  color: var(--color-text);
  padding: 72px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--color-border-soft);
  border-bottom: 1px solid var(--color-border-soft);
}

.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: none;
}

.cta .container {
  position: relative;
  z-index: 1;
}

.cta h2 {
  color: var(--color-navy);
  margin-bottom: 12px;
}

.cta p {
  color: var(--color-text-soft);
  max-width: 640px;
  margin: 0 auto 26px;
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .partner-overview {
    grid-template-columns: 1fr;
  }
  .testimonial-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .quotes {
    grid-template-columns: repeat(2, 1fr);
  }
  .data-stage {
    grid-template-columns: 1fr;
  }
  .data-insight-row {
    grid-template-columns: 1fr;
  }
  .scenario-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature-row {
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 56px;
  }
  .feature-row.reverse {
    direction: ltr;
  }
  .contact-grid,
  .login-shell,
  .sec-row {
    grid-template-columns: 1fr;
  }
  .timeline {
    grid-template-columns: repeat(2, 1fr);
  }
  .timeline::before {
    display: none;
  }
  .course-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .dh-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .companion-layout {
    grid-template-columns: 1fr;
  }
  .companion-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .kb-features {
    grid-template-columns: 1fr;
  }
  .logo-band {
    grid-template-columns: repeat(4, 1fr);
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }
  .section-head .btn {
    align-self: flex-start;
  }
}

@media (max-width: 720px) {
  .section {
    padding: 56px 0;
  }
  .data-stage-main {
    padding: 28px 22px;
  }
  .data-stage-main h3 {
    font-size: 24px;
  }
  .partner-metrics,
  .testimonial-stats,
  .scenario-grid {
    grid-template-columns: 1fr;
  }
  .scenario-card {
    padding: 24px;
  }
  .scenario-band {
    padding: 18px;
  }
  .nav-links,
  .nav-cta .btn:not(.btn-primary) {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 82px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 14px 18px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    gap: 4px;
  }
  .nav-links.open a {
    padding: 12px 14px;
  }
  .grid-2,
  .grid-3,
  .grid-4,
  .course-grid,
  .kb-cats,
  .dashboard-mock,
  .diff,
  .companion-mini-grid,
  .companion-grid,
  .dh-grid,
  .quotes {
    grid-template-columns: 1fr;
  }
  .companion-stage,
  .companion-highlight,
  .companion-card {
    padding: 24px;
  }
  .chat-bubble {
    max-width: 100%;
  }
  .logo-band {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-marquee {
    border-radius: var(--radius-md);
  }
  .dh-foot {
    flex-direction: column;
    align-items: flex-start;
  }
  .timeline {
    grid-template-columns: 1fr;
  }
  .hero {
    padding: 70px 0 80px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    justify-content: center;
  }
  .news-item {
    grid-template-columns: 1fr;
  }
  .news-thumb {
    height: 110px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .footer-contact {
    grid-column: span 2;
  }
  .login-form,
  .login-side {
    padding: 36px 24px;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-contact {
    grid-column: auto;
  }
  .hero-stats {
    grid-template-columns: 1fr 1fr;
  }
  .case-body .stats {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   课程资源中心 - 专属样式
   ========================================================================== */

/* 顶部数据指标条 */
.course-stat-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 32px;
}

.course-stat-strip .css-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px 22px 20px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}

.course-stat-strip .css-item::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
  border-radius: 4px 0 0 4px;
}

.course-stat-strip .css-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(31, 99, 255, 0.22);
}

.course-stat-strip .css-kicker {
  font-size: 12px;
  letter-spacing: 1.2px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  margin-bottom: 6px;
  font-weight: 600;
}

.course-stat-strip .css-num {
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.05;
  margin-bottom: 6px;
}

.course-stat-strip .css-num small {
  font-size: 14px;
  margin-left: 4px;
  color: var(--color-text-muted);
  font-weight: 600;
  background: none;
  -webkit-text-fill-color: var(--color-text-muted);
}

.course-stat-strip .css-label {
  font-size: 13.5px;
  color: var(--color-text-soft);
}

/* 课程类目宫格 */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.cat-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 24px 22px 22px;
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
  border: 1px solid var(--color-border);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: all var(--transition);
  isolation: isolate;
}

.cat-card::after {
  content: "";
  position: absolute;
  inset: auto -50px -60px auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 99, 255, 0.16), transparent 70%);
  z-index: -1;
  transition: transform var(--transition);
}

.cat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(31, 99, 255, 0.28);
}

.cat-card:hover::after {
  transform: scale(1.25);
}

.cat-card .cat-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 22px;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  box-shadow: 0 10px 22px rgba(31, 99, 255, 0.28);
  margin-bottom: 16px;
}

.cat-card.v2 .cat-icon { background: linear-gradient(135deg, #0ea5e9, #14b8a6); box-shadow: 0 10px 22px rgba(14, 165, 233, 0.28); }
.cat-card.v3 .cat-icon { background: linear-gradient(135deg, #6366f1, #a78bfa); box-shadow: 0 10px 22px rgba(99, 102, 241, 0.28); }
.cat-card.v4 .cat-icon { background: linear-gradient(135deg, #f97316, #f43f5e); box-shadow: 0 10px 22px rgba(249, 115, 22, 0.28); }
.cat-card.v5 .cat-icon { background: linear-gradient(135deg, #16a34a, #22d3ee); box-shadow: 0 10px 22px rgba(22, 163, 74, 0.28); }
.cat-card.v6 .cat-icon { background: linear-gradient(135deg, #f59e0b, #f97316); box-shadow: 0 10px 22px rgba(245, 158, 11, 0.28); }
.cat-card.v7 .cat-icon { background: linear-gradient(135deg, #7c3aed, #2563eb); box-shadow: 0 10px 22px rgba(124, 58, 237, 0.28); }
.cat-card.v8 .cat-icon { background: linear-gradient(135deg, #ef4444, #f59e0b); box-shadow: 0 10px 22px rgba(239, 68, 68, 0.28); }

.cat-card h4 {
  margin: 0 0 6px;
  font-size: 17px;
  color: var(--color-navy);
}

.cat-card .cat-sub {
  font-size: 12.5px;
  color: var(--color-text-muted);
  margin-bottom: 14px;
  letter-spacing: 0.3px;
}

.cat-card .cat-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.cat-card .cat-tags span {
  font-size: 11.5px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  font-weight: 600;
}

.cat-card .cat-foot {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
  font-size: 13px;
  color: var(--color-text-muted);
}

.cat-card .cat-count b {
  color: var(--color-navy);
  font-weight: 800;
  font-size: 18px;
  margin-right: 4px;
}

.cat-card .cat-link {
  font-weight: 600;
  color: var(--color-primary);
}

.cat-card .cat-link::after {
  content: "→";
  margin-left: 4px;
  transition: transform var(--transition);
  display: inline-block;
}

.cat-card:hover .cat-link::after {
  transform: translateX(4px);
}

/* 精品推荐 - 横向特色课程卡 */
.feature-course-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 22px;
}

.feature-course-hero {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 380px;
  padding: 32px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(31, 99, 255, 0.18);
  background:
    radial-gradient(380px 220px at 100% 0%, rgba(255, 255, 255, 0.22), transparent 70%),
    radial-gradient(420px 240px at 0% 100%, rgba(0, 184, 217, 0.32), transparent 70%),
    linear-gradient(135deg, #1f63ff 0%, #3b82f6 45%, #00b8d9 100%);
  color: #fff;
  box-shadow: var(--shadow-xl);
  text-decoration: none;
}

.feature-course-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle at 80% 20%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 80% 20%, #000, transparent 70%);
  pointer-events: none;
}

.feature-course-hero > * {
  position: relative;
  z-index: 1;
}

.feature-course-hero .fch-badge {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 16px;
  backdrop-filter: blur(6px);
}

.feature-course-hero .fch-badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #facc15;
  box-shadow: 0 0 0 4px rgba(250, 204, 21, 0.28);
}

.feature-course-hero h3 {
  color: #fff;
  font-size: clamp(22px, 2.6vw, 30px);
  margin: 0 0 12px;
  line-height: 1.3;
  max-width: 580px;
}

.feature-course-hero p {
  color: rgba(255, 255, 255, 0.92);
  margin: 0 0 22px;
  max-width: 560px;
}

.fch-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 22px;
}

.fch-meta .m {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  font-size: 12.5px;
  font-weight: 600;
  color: #fff;
}

.fch-meta .m b {
  font-weight: 800;
  color: #facc15;
}

.fch-cta {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 999px;
  background: #fff;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 10px 24px rgba(8, 23, 64, 0.25);
}

.fch-cta:hover {
  transform: translateY(-2px);
  color: var(--color-primary-dark);
  box-shadow: 0 14px 30px rgba(8, 23, 64, 0.32);
}

.feature-course-side {
  display: grid;
  gap: 16px;
}

.feature-mini {
  position: relative;
  display: flex;
  gap: 16px;
  padding: 18px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: #fff;
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
}

.feature-mini:hover {
  transform: translateY(-2px);
  border-color: rgba(31, 99, 255, 0.25);
  box-shadow: var(--shadow-md);
}

.feature-mini .fm-thumb {
  flex-shrink: 0;
  width: 86px;
  height: 86px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #1f63ff, #4d8bff);
  color: #fff;
  font-size: 28px;
  font-weight: 800;
  box-shadow: 0 8px 18px rgba(31, 99, 255, 0.25);
}

.feature-mini .fm-thumb.v2 { background: linear-gradient(135deg, #0ea5e9, #14b8a6); box-shadow: 0 8px 18px rgba(14, 165, 233, 0.25); }
.feature-mini .fm-thumb.v3 { background: linear-gradient(135deg, #f97316, #f43f5e); box-shadow: 0 8px 18px rgba(249, 115, 22, 0.25); }
.feature-mini .fm-thumb.v4 { background: linear-gradient(135deg, #6366f1, #a78bfa); box-shadow: 0 8px 18px rgba(99, 102, 241, 0.25); }

.feature-mini .fm-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.feature-mini .fm-tag {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  font-size: 11.5px;
  font-weight: 700;
  margin-bottom: 6px;
}

.feature-mini h4 {
  margin: 0 0 6px;
  font-size: 15px;
  color: var(--color-navy);
  line-height: 1.4;
}

.feature-mini .fm-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: auto;
}

.feature-mini .fm-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* 课程卡片增强 - 升级 course-card */
.course-card {
  position: relative;
}

.course-card .course-thumb {
  height: 180px;
  padding: 0 22px;
  text-align: center;
  letter-spacing: 1px;
  text-shadow: 0 4px 14px rgba(15, 31, 61, 0.35);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  overflow: hidden;
}

.course-card .course-thumb::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(115deg, transparent 0 38%, rgba(255, 255, 255, 0.08) 38% 42%, transparent 42% 100%),
    linear-gradient(115deg, transparent 0 60%, rgba(255, 255, 255, 0.05) 60% 66%, transparent 66% 100%),
    radial-gradient(circle at 88% 14%, rgba(255, 255, 255, 0.22) 0, transparent 26%),
    radial-gradient(circle at 12% 92%, rgba(255, 255, 255, 0.14) 0, transparent 30%);
  pointer-events: none;
  z-index: 0;
}

.course-card .course-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(15, 31, 61, 0) 55%, rgba(15, 31, 61, 0.28) 100%);
  pointer-events: none;
  z-index: 0;
}

.course-card .course-thumb .thumb-kicker {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px 3px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: #fff;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0.14));
  border: 1px solid rgba(255, 255, 255, 0.32);
  text-shadow: none;
  backdrop-filter: blur(6px);
  margin-bottom: 4px;
}

.course-card .course-thumb .thumb-kicker::before {
  content: "";
  width: 4px;
  height: 12px;
  background: #fff;
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.7);
}

.course-card .course-thumb .thumb-title {
  position: relative;
  z-index: 1;
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 1.5px;
  line-height: 1.15;
  color: #fff;
}

.course-card .course-thumb .thumb-sub {
  position: relative;
  z-index: 1;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.78);
  margin-top: 6px;
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.28);
  text-shadow: none;
}

.course-card .play-btn {
  position: absolute;
  right: 14px;
  bottom: 14px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.96);
  color: var(--color-primary);
  display: grid;
  place-items: center;
  font-size: 14px;
  z-index: 2;
  box-shadow: 0 6px 14px rgba(15, 31, 61, 0.28);
  transition: all var(--transition);
}

.course-card:hover .play-btn {
  transform: scale(1.1);
  background: var(--color-primary);
  color: #fff;
}

.course-card .course-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  padding: 4px 10px;
  font-size: 11px;
  letter-spacing: 0.8px;
  border-radius: 999px;
  font-weight: 700;
  color: #fff;
  background: rgba(245, 158, 11, 0.95);
  box-shadow: 0 4px 10px rgba(245, 158, 11, 0.32);
}

.course-card .course-badge.new {
  background: rgba(34, 197, 94, 0.95);
  box-shadow: 0 4px 10px rgba(34, 197, 94, 0.32);
}

.course-card .course-badge.pick {
  background: rgba(31, 99, 255, 0.95);
  box-shadow: 0 4px 10px rgba(31, 99, 255, 0.32);
}

.course-card .course-badge.free {
  background: rgba(0, 184, 217, 0.95);
  box-shadow: 0 4px 10px rgba(0, 184, 217, 0.32);
}

.course-body .course-rating {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
  font-size: 13px;
}

.course-body .course-rating .stars {
  color: #f59e0b;
  letter-spacing: 1px;
}

.course-body .course-rating .score {
  font-weight: 800;
  color: var(--color-navy);
}

.course-body .course-rating .learners {
  margin-left: auto;
  color: var(--color-text-muted);
  font-size: 12.5px;
}

.course-body .course-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0 14px;
}

.course-body .course-tags span {
  padding: 3px 9px;
  border-radius: 6px;
  background: var(--color-bg-soft);
  color: var(--color-text-soft);
  font-size: 11.5px;
  font-weight: 600;
}

.course-body .course-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
  font-size: 13px;
  color: var(--color-text-muted);
  flex-wrap: wrap;
  gap: 8px;
}

.course-body .course-foot .teacher {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.course-body .course-foot .teacher-ava {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-size: 11px;
  font-weight: 700;
}

.course-body .course-foot .teacher-ava.v2 { background: linear-gradient(135deg, #f97316, #f43f5e); }
.course-body .course-foot .teacher-ava.v3 { background: linear-gradient(135deg, #6366f1, #a78bfa); }
.course-body .course-foot .teacher-ava.v4 { background: linear-gradient(135deg, #0ea5e9, #14b8a6); }

.course-body .course-foot .teacher b {
  color: var(--color-text);
  font-weight: 600;
}

.course-body .course-foot .price {
  font-weight: 800;
  color: var(--color-primary);
  font-size: 15px;
}

.course-body .course-foot .price.free {
  color: var(--color-success);
}

.course-body .course-foot .price del {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 12px;
  margin-right: 4px;
}

/* 课程主题色调 */
.course-thumb.theme-ai { background: linear-gradient(135deg, #1f63ff 0%, #00b8d9 100%); }
.course-thumb.theme-mfg { background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%); }
.course-thumb.theme-llm { background: linear-gradient(135deg, #6366f1 0%, #a78bfa 100%); }
.course-thumb.theme-drone { background: linear-gradient(135deg, #0ea5e9 0%, #14b8a6 100%); }
.course-thumb.theme-data { background: linear-gradient(135deg, #f97316 0%, #f43f5e 100%); }
.course-thumb.theme-iot { background: linear-gradient(135deg, #0891b2 0%, #22d3ee 100%); }
.course-thumb.theme-car { background: linear-gradient(135deg, #1d4ed8 0%, #06b6d4 100%); }
.course-thumb.theme-safety { background: linear-gradient(135deg, #ef4444 0%, #f59e0b 100%); }
.course-thumb.theme-energy { background: linear-gradient(135deg, #16a34a 0%, #22d3ee 100%); }
.course-thumb.theme-dh { background: linear-gradient(135deg, #7c3aed 0%, #2563eb 100%); }
.course-thumb.theme-bilingual { background: linear-gradient(135deg, #ec4899 0%, #8b5cf6 100%); }
.course-thumb.theme-teacher { background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%); }
.course-thumb.theme-cv { background: linear-gradient(135deg, #06b6d4 0%, #6366f1 100%); }
.course-thumb.theme-fintech { background: linear-gradient(135deg, #0d9488 0%, #1f63ff 100%); }

/* 学习路径 */
.path-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.path-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 26px 24px 22px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
  transition: all var(--transition);
  overflow: hidden;
}

.path-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.path-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(31, 99, 255, 0.25);
}

.path-card .path-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.path-card .path-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 20px;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  box-shadow: 0 6px 16px rgba(31, 99, 255, 0.25);
  flex-shrink: 0;
}

.path-card.v2 .path-icon { background: linear-gradient(135deg, #0ea5e9, #14b8a6); box-shadow: 0 6px 16px rgba(14, 165, 233, 0.25); }
.path-card.v3 .path-icon { background: linear-gradient(135deg, #f97316, #f43f5e); box-shadow: 0 6px 16px rgba(249, 115, 22, 0.25); }
.path-card.v4 .path-icon { background: linear-gradient(135deg, #6366f1, #a78bfa); box-shadow: 0 6px 16px rgba(99, 102, 241, 0.25); }

.path-card h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.35;
}

.path-card .path-sub {
  font-size: 12.5px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.path-card .path-steps {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  counter-reset: step;
}

.path-card .path-steps li {
  position: relative;
  padding: 10px 0 10px 38px;
  border-top: 1px dashed var(--color-border);
  font-size: 13.5px;
  color: var(--color-text-soft);
  line-height: 1.45;
  counter-increment: step;
}

.path-card .path-steps li:first-child {
  border-top: none;
}

.path-card .path-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 11px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  font-weight: 800;
  font-size: 12px;
  display: grid;
  place-items: center;
}

.path-card .path-steps li b {
  display: block;
  color: var(--color-navy);
  font-size: 14px;
  margin-bottom: 2px;
  font-weight: 700;
}

.path-card .path-foot {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--color-border-soft);
  font-size: 13px;
}

.path-card .path-foot .stat {
  color: var(--color-text-muted);
}

.path-card .path-foot .stat b {
  color: var(--color-navy);
  font-weight: 800;
  font-size: 16px;
  margin-right: 2px;
}

.path-card .path-foot a {
  font-weight: 700;
  color: var(--color-primary);
}

/* 富媒体教学资源库 */
.material-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 16px;
}

.material-cell {
  position: relative;
  padding: 22px 18px 20px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--color-border);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: all var(--transition);
  overflow: hidden;
}

.material-cell::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 99, 255, 0.1), transparent 70%);
  transition: transform var(--transition);
}

.material-cell:hover {
  transform: translateY(-4px);
  border-color: rgba(31, 99, 255, 0.25);
  box-shadow: var(--shadow-md);
}

.material-cell:hover::after {
  transform: scale(1.5);
}

.material-cell .mc-icon {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  font-size: 20px;
}

.material-cell.v2 .mc-icon { background: rgba(14, 165, 233, 0.1); color: #0ea5e9; }
.material-cell.v3 .mc-icon { background: rgba(99, 102, 241, 0.1); color: #6366f1; }
.material-cell.v4 .mc-icon { background: rgba(249, 115, 22, 0.1); color: #f97316; }
.material-cell.v5 .mc-icon { background: rgba(22, 163, 74, 0.1); color: #16a34a; }
.material-cell.v6 .mc-icon { background: rgba(245, 158, 11, 0.1); color: #f59e0b; }

.material-cell strong {
  font-size: 15px;
  color: var(--color-navy);
  font-weight: 700;
}

.material-cell .mc-count {
  font-size: 12.5px;
  color: var(--color-text-muted);
}

.material-cell .mc-count b {
  color: var(--color-primary);
  font-weight: 800;
  font-size: 14px;
}

/* 1+X 证书矩阵 */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.cert-card {
  position: relative;
  padding: 24px 22px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.cert-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition);
}

.cert-card:hover {
  transform: translateY(-4px);
  border-color: rgba(31, 99, 255, 0.25);
  box-shadow: var(--shadow-md);
}

.cert-card:hover::before {
  opacity: 1;
}

.cert-card .cert-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.cert-card .cert-seal {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, #fde68a 0%, #f59e0b 100%);
  color: #7c2d12;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 11px;
  letter-spacing: 0.5px;
  line-height: 1.1;
  text-align: center;
  box-shadow: 0 6px 14px rgba(245, 158, 11, 0.32);
  flex-shrink: 0;
}

.cert-card .cert-level {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  font-size: 11.5px;
  font-weight: 700;
}

.cert-card .cert-level.advanced {
  background: rgba(124, 58, 237, 0.1);
  color: #7c3aed;
}

.cert-card .cert-level.intermediate {
  background: rgba(0, 184, 217, 0.1);
  color: #0e7490;
}

.cert-card h4 {
  margin: 0 0 6px;
  font-size: 15.5px;
  color: var(--color-navy);
  line-height: 1.4;
}

.cert-card .cert-issuer {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 14px;
}

.cert-card .cert-foot {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  border-top: 1px dashed var(--color-border);
  font-size: 12.5px;
  color: var(--color-text-soft);
}

.cert-card .cert-foot b {
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 800;
}

/* 学院/院系合作口碑环 */
.school-band {
  margin-top: 28px;
  padding: 22px 26px;
  background: linear-gradient(135deg, #f3f7ff 0%, #eaf1fb 100%);
  border: 1px solid rgba(31, 99, 255, 0.14);
  border-radius: var(--radius-xl);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
}

.school-band-title {
  font-size: 13px;
  color: var(--color-text-muted);
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.school-band-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  flex: 1;
}

.school-band-pills span {
  padding: 7px 14px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--color-text);
  font-weight: 600;
  box-shadow: 0 2px 6px rgba(31, 99, 255, 0.04);
}

/* 课程区头部小统计 */
.course-list-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin: 0 0 20px;
  flex-wrap: wrap;
}

.course-list-head .clh-info {
  font-size: 13.5px;
  color: var(--color-text-muted);
}

.course-list-head .clh-info b {
  color: var(--color-primary);
  font-weight: 800;
}

.course-list-head .clh-sort {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-soft);
}

.course-list-head .clh-sort .sort-pill {
  padding: 6px 12px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--color-border);
  cursor: pointer;
  font-size: 12.5px;
  transition: all var(--transition);
}

.course-list-head .clh-sort .sort-pill.active,
.course-list-head .clh-sort .sort-pill:hover {
  color: var(--color-primary);
  border-color: rgba(31, 99, 255, 0.32);
  background: rgba(31, 99, 255, 0.06);
}

/* 课程资源中心响应式 */
@media (max-width: 1024px) {
  .course-stat-strip,
  .cat-grid,
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature-course-grid {
    grid-template-columns: 1fr;
  }
  .feature-course-hero {
    min-height: 320px;
  }
  .path-grid {
    grid-template-columns: 1fr;
  }
  .material-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 720px) {
  .course-stat-strip,
  .cat-grid,
  .cert-grid {
    grid-template-columns: 1fr;
  }
  .material-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature-course-hero {
    padding: 24px 22px;
    min-height: 260px;
  }
}

/* ==========================================================================
   智能知识库 - 专属样式
   ========================================================================== */

/* 整体浅蓝调背景 */
.kb-page main {
  background:
    radial-gradient(900px 500px at 90% -10%, rgba(31, 99, 255, 0.10), transparent 60%),
    radial-gradient(700px 400px at 0% 90%, rgba(0, 184, 217, 0.08), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #f6f9ff 60%, #eef3fb 100%);
}

.kb-page .section,
.kb-page .section-soft,
.kb-page .cta {
  background: transparent;
}

/* ============ AI 工作台 ============ */
.ai-workspace {
  position: relative;
  max-width: 1080px;
  margin: 0 auto;
  padding: 36px 36px 32px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(420px 220px at 100% 0%, rgba(0, 184, 217, 0.10), transparent 65%),
    radial-gradient(360px 200px at 0% 100%, rgba(31, 99, 255, 0.08), transparent 70%),
    linear-gradient(180deg, #ffffff 0%, #f4f8ff 100%);
  border: 1px solid rgba(31, 99, 255, 0.16);
  box-shadow: 0 30px 60px rgba(15, 31, 61, 0.08), 0 8px 20px rgba(31, 99, 255, 0.06);
  overflow: hidden;
}

.ai-workspace::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(31, 99, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 99, 255, 0.04) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(ellipse at top right, #000, transparent 60%);
  -webkit-mask-image: radial-gradient(ellipse at top right, #000, transparent 60%);
  pointer-events: none;
}

.ai-workspace > * {
  position: relative;
  z-index: 1;
}

.ai-ws-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}

.ai-ws-title {
  margin: 12px 0 8px;
  font-size: clamp(22px, 2.6vw, 28px);
}

.ai-ws-sub {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 14.5px;
  max-width: 620px;
}

.ai-ws-sub b {
  color: var(--color-primary);
  font-weight: 700;
}

.ai-ws-status {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.ai-ws-status strong {
  display: block;
  font-size: 13.5px;
  color: var(--color-navy);
  font-weight: 700;
}

.ai-ws-status small {
  display: block;
  font-size: 11.5px;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.ai-status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 5px rgba(34, 197, 94, 0.18);
  animation: marquee-pulse 1.8s ease-in-out infinite;
}

/* 模式 Tab */
.ai-mode-tabs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px dashed rgba(31, 99, 255, 0.16);
}

.ai-mode {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-text-soft);
  font-size: 13.5px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
}

.ai-mode .ic {
  font-size: 14px;
}

.ai-mode:hover {
  border-color: rgba(31, 99, 255, 0.32);
  color: var(--color-primary);
}

.ai-mode.active {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 18px rgba(31, 99, 255, 0.28);
}

.ai-mode-tip {
  margin-left: auto;
  font-size: 12.5px;
  color: var(--color-text-muted);
  padding: 5px 12px;
  background: rgba(31, 99, 255, 0.06);
  border-radius: 999px;
}

/* Pro 搜索条 */
.ai-search-bar.pro {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 8px 8px 18px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  box-shadow: 0 6px 20px rgba(31, 99, 255, 0.08);
  transition: all var(--transition);
}

.ai-search-bar.pro:focus-within {
  border-color: rgba(31, 99, 255, 0.5);
  box-shadow: 0 10px 28px rgba(31, 99, 255, 0.16), 0 0 0 4px rgba(31, 99, 255, 0.08);
}

.ai-bar-ic {
  font-size: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.ai-search-bar.pro input {
  flex: 1;
  border: none;
  outline: none;
  padding: 14px 0;
  font-size: 15.5px;
  background: transparent;
  color: var(--color-text);
  font-family: inherit;
}

.ai-search-bar.pro input::placeholder {
  color: var(--color-text-muted);
}

.ai-bar-tools {
  display: flex;
  align-items: center;
  gap: 4px;
}

.ai-bar-tool {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 16px;
  color: var(--color-text-muted);
  transition: all var(--transition);
}

.ai-bar-tool:hover {
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
}

.ai-search-bar.pro .btn {
  padding: 12px 22px;
}

.ai-search-bar.pro .kbd {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.22);
  font-size: 12px;
  font-weight: 700;
}

/* 推荐问题 */
.ai-suggest {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
}

.ai-suggest-label {
  font-size: 12.5px;
  color: var(--color-text-muted);
  font-weight: 700;
  letter-spacing: 0.6px;
  margin-right: 4px;
}

.ai-suggest .sg {
  padding: 7px 14px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-soft);
  cursor: pointer;
  transition: all var(--transition);
}

.ai-suggest .sg:hover {
  border-color: rgba(31, 99, 255, 0.4);
  color: var(--color-primary);
  background: rgba(31, 99, 255, 0.04);
  transform: translateY(-1px);
}

/* AI 响应面板 */
.ai-result-pro {
  margin-top: 24px;
  border-radius: 18px;
  border: 1px solid rgba(31, 99, 255, 0.18);
  background: linear-gradient(180deg, #fbfdff 0%, #ffffff 100%);
  box-shadow: 0 14px 36px rgba(15, 31, 61, 0.06);
  overflow: hidden;
  opacity: 0.55;
  transition: opacity 0.4s;
}

.ai-result-pro.show {
  opacity: 1;
  animation: fadeIn 0.4s ease;
}

.ai-result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 22px;
  background: linear-gradient(135deg, rgba(31, 99, 255, 0.06), rgba(0, 184, 217, 0.06));
  border-bottom: 1px solid rgba(31, 99, 255, 0.1);
  flex-wrap: wrap;
}

.ai-result-bot {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ai-bot-avatar {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-weight: 800;
  font-size: 16px;
  box-shadow: 0 6px 14px rgba(31, 99, 255, 0.28);
}

.ai-result-bot strong {
  display: block;
  font-size: 14px;
  color: var(--color-navy);
}

.ai-result-bot small {
  display: block;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.ai-result-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
}

.ai-conf {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.1);
  color: #16a34a;
  font-weight: 700;
}

.ai-conf i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.16);
}

.ai-time {
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  font-weight: 700;
}

.ai-result-body {
  padding: 22px;
  display: grid;
  gap: 20px;
}

.ai-label {
  display: block;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 1.2px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.ai-label small {
  text-transform: none;
  font-weight: 500;
  letter-spacing: 0.2px;
  color: var(--color-text-muted);
}

.ai-answer-block {
  padding: 18px 20px;
  background: #fff;
  border-radius: 14px;
  border: 1px solid var(--color-border);
}

#ai-answer {
  margin: 0;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.85;
}

/* 引用来源列表 */
.ai-source-list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: src;
  display: grid;
  gap: 10px;
}

.ai-source-list li {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "tag title"
    "meta meta";
  align-items: center;
  gap: 6px 14px;
  padding: 14px 16px 14px 50px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  counter-increment: src;
  transition: all var(--transition);
}

.ai-source-list li:hover {
  border-color: rgba(31, 99, 255, 0.3);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.ai-source-list li::before {
  content: counter(src);
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 12px;
}

.src-tag {
  grid-area: tag;
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 6px;
  background: rgba(31, 99, 255, 0.1);
  color: var(--color-primary);
  font-size: 11.5px;
  font-weight: 700;
  white-space: nowrap;
  justify-self: start;
}

.src-tag.tag-edu { background: rgba(16, 163, 74, 0.1); color: #16a34a; }
.src-tag.tag-paper { background: rgba(124, 58, 237, 0.1); color: #7c3aed; }
.src-tag.tag-policy { background: rgba(245, 158, 11, 0.12); color: #b45309; }

.src-title {
  grid-area: title;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-navy);
}

.src-meta {
  grid-area: meta;
  font-size: 12.5px;
  color: var(--color-text-muted);
}

/* 相关追问 */
.ai-related-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ai-related-chips .sg {
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(31, 99, 255, 0.06);
  border: 1px solid rgba(31, 99, 255, 0.15);
  font-size: 13px;
  color: var(--color-primary);
  cursor: pointer;
  transition: all var(--transition);
}

.ai-related-chips .sg:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-1px);
}

/* ============ 5 步工作流 ============ */
.kb-flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  position: relative;
}

.kb-flow::before {
  content: "";
  position: absolute;
  top: 56px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    rgba(31, 99, 255, 0.3) 0 8px,
    transparent 8px 16px
  );
  z-index: 0;
}

.kb-flow-step {
  position: relative;
  z-index: 1;
  padding: 24px 20px 20px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: all var(--transition);
}

.kb-flow-step:hover {
  transform: translateY(-5px);
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-lg);
}

.kb-flow-step .kf-num {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1.2px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.kb-flow-step .kf-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  margin: 0 auto 12px;
  display: grid;
  place-items: center;
  font-size: 26px;
  background: linear-gradient(135deg, #f3f7ff 0%, #eaf1fb 100%);
  border: 1px solid rgba(31, 99, 255, 0.16);
  color: var(--color-primary);
  box-shadow: 0 8px 18px rgba(31, 99, 255, 0.12);
}

.kb-flow-step h4 {
  margin: 0 0 6px;
  font-size: 15.5px;
  color: var(--color-navy);
}

.kb-flow-step p {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--color-text-soft);
  line-height: 1.55;
}

.kf-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
}

.kf-tags span {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  font-weight: 600;
}

/* ============ 分类目录 Pro ============ */
.kb-cats-pro {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.kb-cat-pro {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 24px 24px 20px;
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
  border: 1px solid var(--color-border);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: all var(--transition);
  isolation: isolate;
}

.kb-cat-pro::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0.3);
  transform-origin: left;
  transition: transform var(--transition);
}

.kb-cat-pro::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 99, 255, 0.10), transparent 70%);
  z-index: -1;
  transition: transform var(--transition);
}

.kb-cat-pro:hover {
  transform: translateY(-5px);
  border-color: rgba(31, 99, 255, 0.28);
  box-shadow: var(--shadow-lg);
}

.kb-cat-pro:hover::before {
  transform: scaleX(1);
}

.kb-cat-pro:hover::after {
  transform: scale(1.25);
}

.kc-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.kc-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 22px;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  box-shadow: 0 8px 18px rgba(31, 99, 255, 0.28);
}

.kb-cat-pro.v2 .kc-icon { background: linear-gradient(135deg, #0ea5e9, #14b8a6); box-shadow: 0 8px 18px rgba(14, 165, 233, 0.28); }
.kb-cat-pro.v3 .kc-icon { background: linear-gradient(135deg, #f97316, #f43f5e); box-shadow: 0 8px 18px rgba(249, 115, 22, 0.28); }
.kb-cat-pro.v4 .kc-icon { background: linear-gradient(135deg, #f59e0b, #b45309); box-shadow: 0 8px 18px rgba(245, 158, 11, 0.28); }
.kb-cat-pro.v5 .kc-icon { background: linear-gradient(135deg, #6366f1, #a78bfa); box-shadow: 0 8px 18px rgba(99, 102, 241, 0.28); }
.kb-cat-pro.v6 .kc-icon { background: linear-gradient(135deg, #16a34a, #22d3ee); box-shadow: 0 8px 18px rgba(22, 163, 74, 0.28); }

.kc-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.4px;
}

.kb-cat-pro.v2 .kc-badge { background: rgba(14, 165, 233, 0.1); color: #0e7490; }
.kb-cat-pro.v3 .kc-badge { background: rgba(249, 115, 22, 0.1); color: #c2410c; }
.kb-cat-pro.v4 .kc-badge { background: rgba(245, 158, 11, 0.12); color: #b45309; }
.kb-cat-pro.v5 .kc-badge { background: rgba(99, 102, 241, 0.1); color: #4f46e5; }
.kb-cat-pro.v6 .kc-badge { background: rgba(22, 163, 74, 0.1); color: #15803d; }

.kb-cat-pro h4 {
  margin: 0 0 8px;
  font-size: 17px;
}

.kc-count {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.kc-count b {
  color: var(--color-navy);
  font-weight: 800;
  font-size: 17px;
  margin-right: 2px;
}

.kb-cat-pro p {
  font-size: 13.5px;
  color: var(--color-text-soft);
  margin: 0 0 14px;
  flex: 1;
  line-height: 1.6;
}

.kc-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.kc-tags span {
  font-size: 11.5px;
  padding: 3px 9px;
  border-radius: 6px;
  background: var(--color-bg-soft);
  color: var(--color-text-soft);
  font-weight: 600;
}

.kc-bar {
  height: 6px;
  border-radius: 999px;
  background: rgba(31, 99, 255, 0.08);
  overflow: hidden;
  margin-bottom: 10px;
}

.kc-bar i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 999px;
  transition: width 0.6s ease;
}

.kb-cat-pro.v2 .kc-bar i { background: linear-gradient(90deg, #0ea5e9, #14b8a6); }
.kb-cat-pro.v3 .kc-bar i { background: linear-gradient(90deg, #f97316, #f43f5e); }
.kb-cat-pro.v4 .kc-bar i { background: linear-gradient(90deg, #f59e0b, #b45309); }
.kb-cat-pro.v5 .kc-bar i { background: linear-gradient(90deg, #6366f1, #a78bfa); }
.kb-cat-pro.v6 .kc-bar i { background: linear-gradient(90deg, #16a34a, #22d3ee); }

.kc-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12.5px;
  color: var(--color-text-muted);
  padding-top: 12px;
  border-top: 1px dashed var(--color-border);
}

.kc-link {
  font-weight: 700;
  color: var(--color-primary);
}

.kb-cat-pro:hover .kc-link {
  color: var(--color-primary-dark);
}

/* ============ 实时洞察 + 热门查询 ============ */
.kb-insight {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 24px;
}

.kb-trend {
  padding: 26px;
  background: #fff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.kb-trend-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  flex-wrap: wrap;
  gap: 12px;
}

.kb-trend-head h3 {
  margin: 0;
  font-size: 18px;
}

.kb-trend-tip {
  font-size: 12px;
  color: var(--color-text-muted);
  padding: 4px 10px;
  background: var(--color-bg-soft);
  border-radius: 999px;
}

.kb-trend-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 4px;
}

.kb-trend-list li {
  display: grid;
  grid-template-columns: 38px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 12px 12px;
  border-radius: 12px;
  transition: all var(--transition);
  cursor: pointer;
}

.kb-trend-list li:hover {
  background: rgba(31, 99, 255, 0.04);
  transform: translateX(2px);
}

.kb-trend-list .rk {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: var(--color-bg-soft);
  color: var(--color-text-muted);
  font-weight: 800;
  font-size: 13px;
}

.kb-trend-list li:nth-child(1) .rk { background: linear-gradient(135deg, #f59e0b, #ef4444); color: #fff; }
.kb-trend-list li:nth-child(2) .rk { background: linear-gradient(135deg, #f59e0b, #f97316); color: #fff; }
.kb-trend-list li:nth-child(3) .rk { background: linear-gradient(135deg, #fbbf24, #f59e0b); color: #fff; }

.kt-info strong {
  display: block;
  font-size: 14px;
  color: var(--color-navy);
  font-weight: 600;
  margin-bottom: 2px;
}

.kt-info small {
  font-size: 12px;
  color: var(--color-text-muted);
}

.kt-delta {
  font-size: 12.5px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 999px;
}

.kt-delta.up {
  background: rgba(34, 197, 94, 0.1);
  color: #16a34a;
}

.kt-delta.flat {
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
}

.kt-delta.down {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
}

.kb-side {
  display: grid;
  gap: 18px;
  align-content: start;
}

.kb-side-card {
  padding: 22px;
  background: #fff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.kb-side-card h4 {
  margin: 4px 0 12px;
  font-size: 16px;
}

.kb-side-kicker {
  font-size: 11px;
  letter-spacing: 1.4px;
  color: var(--color-primary);
  font-weight: 800;
  text-transform: uppercase;
}

/* 实时脉搏 */
.kb-pulse {
  background:
    radial-gradient(220px 140px at 100% 0%, rgba(255, 255, 255, 0.18), transparent 70%),
    linear-gradient(135deg, #1f63ff 0%, #2563eb 50%, #00b8d9 100%);
  color: #fff;
  border: none;
}

.kb-pulse h4,
.kb-pulse .kb-side-kicker,
.kb-pulse p {
  color: #fff;
}

.kb-pulse .kb-side-kicker {
  color: rgba(255, 255, 255, 0.88);
}

.kb-pulse-num {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 14px;
}

.kb-pulse-num b {
  font-size: 36px;
  font-weight: 900;
  letter-spacing: -1px;
}

.kb-pulse-num span {
  font-size: 13px;
  opacity: 0.85;
}

.kb-pulse-bars {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 5px;
  height: 56px;
  margin-bottom: 12px;
}

.kb-pulse-bars i {
  flex: 1;
  height: var(--h, 50%);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.42));
  border-radius: 3px;
  animation: pulseBar 2.4s ease-in-out infinite;
}

.kb-pulse-bars i:nth-child(2n) { animation-delay: 0.2s; }
.kb-pulse-bars i:nth-child(3n) { animation-delay: 0.4s; }
.kb-pulse-bars i:nth-child(4n) { animation-delay: 0.6s; }
.kb-pulse-bars i:nth-child(5n) { animation-delay: 0.8s; }

@keyframes pulseBar {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.55); opacity: 0.7; }
}

.kb-pulse-tip {
  margin: 0;
  font-size: 12.5px;
  opacity: 0.9;
}

/* 内容缺口 */
.kb-gap-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.kb-gap-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--color-bg-soft);
}

.gp-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 7px;
  flex-shrink: 0;
}

.gp-dot.warn {
  background: #f59e0b;
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.18);
}

.gp-dot.ok {
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.18);
}

.kb-gap-list strong {
  display: block;
  font-size: 13.5px;
  color: var(--color-navy);
  font-weight: 600;
}

.kb-gap-list small {
  display: block;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* CTA Side Card */
.kb-cta-card {
  background: linear-gradient(135deg, #f3f7ff 0%, #eaf1fb 100%);
  border-color: rgba(31, 99, 255, 0.18);
}

.kb-cta-card h4 {
  margin-top: 0;
}

.kb-cta-card p {
  font-size: 13.5px;
  margin-bottom: 14px;
  color: var(--color-text-soft);
}

/* ============ 9 大能力 ============ */
.kb-cap-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.kb-cap {
  position: relative;
  padding: 26px 24px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}

.kb-cap::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.kb-cap:hover {
  transform: translateY(-4px);
  border-color: rgba(31, 99, 255, 0.25);
  box-shadow: var(--shadow-md);
}

.kb-cap:hover::after {
  transform: scaleX(1);
}

.kb-cap .kc-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  font-size: 20px;
  margin-bottom: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(31, 99, 255, 0.08), rgba(0, 184, 217, 0.08));
  color: var(--color-primary);
  box-shadow: none;
  border: 1px solid rgba(31, 99, 255, 0.14);
}

.kb-cap.c2 .kc-icon { background: linear-gradient(135deg, rgba(14, 165, 233, 0.08), rgba(20, 184, 166, 0.08)); color: #0e7490; border-color: rgba(14, 165, 233, 0.18); }
.kb-cap.c3 .kc-icon { background: linear-gradient(135deg, rgba(124, 58, 237, 0.08), rgba(167, 139, 250, 0.08)); color: #6d28d9; border-color: rgba(124, 58, 237, 0.18); }
.kb-cap.c4 .kc-icon { background: linear-gradient(135deg, rgba(249, 115, 22, 0.08), rgba(244, 63, 94, 0.08)); color: #c2410c; border-color: rgba(249, 115, 22, 0.18); }
.kb-cap.c5 .kc-icon { background: linear-gradient(135deg, rgba(22, 163, 74, 0.08), rgba(34, 211, 238, 0.08)); color: #15803d; border-color: rgba(22, 163, 74, 0.18); }
.kb-cap.c6 .kc-icon { background: linear-gradient(135deg, rgba(245, 158, 11, 0.10), rgba(217, 119, 6, 0.10)); color: #b45309; border-color: rgba(245, 158, 11, 0.20); }
.kb-cap.c7 .kc-icon { background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(167, 139, 250, 0.08)); color: #4f46e5; border-color: rgba(99, 102, 241, 0.18); }
.kb-cap.c8 .kc-icon { background: linear-gradient(135deg, rgba(8, 145, 178, 0.08), rgba(34, 211, 238, 0.08)); color: #0e7490; border-color: rgba(8, 145, 178, 0.18); }
.kb-cap.c9 .kc-icon { background: linear-gradient(135deg, rgba(31, 99, 255, 0.10), rgba(0, 184, 217, 0.10)); color: var(--color-primary); border-color: rgba(31, 99, 255, 0.22); }

.kb-cap h3 {
  font-size: 17px;
  margin: 0 0 8px;
}

.kb-cap p {
  margin: 0;
  font-size: 13.5px;
  color: var(--color-text-soft);
  line-height: 1.6;
}

/* ============ 应用场景 ============ */
.kb-role-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.kb-role {
  position: relative;
  padding: 26px 24px 22px;
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition);
  overflow: hidden;
}

.kb-role::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.kb-role:hover {
  transform: translateY(-4px);
  border-color: rgba(31, 99, 255, 0.28);
  box-shadow: var(--shadow-lg);
}

.kb-role:hover::before {
  transform: scaleX(1);
}

.kr-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.kr-ic {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  font-size: 24px;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 18px rgba(31, 99, 255, 0.25);
}

.kr-tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.6px;
}

.kr-tag.tg2 { background: rgba(14, 165, 233, 0.1); color: #0e7490; }
.kr-tag.tg3 { background: rgba(124, 58, 237, 0.1); color: #7c3aed; }
.kr-tag.tg4 { background: rgba(245, 158, 11, 0.12); color: #b45309; }
.kr-tag.tg5 { background: rgba(244, 63, 94, 0.10); color: #be123c; }
.kr-tag.tg6 { background: rgba(22, 163, 74, 0.1); color: #15803d; }

.kb-role h4 {
  margin: 0 0 14px;
  font-size: 16.5px;
  color: var(--color-navy);
}

.kb-role ul {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
}

.kb-role li {
  position: relative;
  padding: 7px 0 7px 22px;
  font-size: 13.5px;
  color: var(--color-text-soft);
  line-height: 1.55;
  border-top: 1px dashed var(--color-border);
}

.kb-role li:first-child {
  border-top: none;
}

.kb-role li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  display: grid;
  place-items: center;
}

.kr-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  cursor: pointer;
  transition: gap var(--transition);
}

.kr-link:hover {
  gap: 8px;
  color: var(--color-primary-dark);
}

/* ============ 安全合规 + 接入流程 ============ */
.kb-trust {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 28px;
}

.kb-trust-main {
  padding: 36px 32px;
  background:
    radial-gradient(360px 200px at 100% 0%, rgba(0, 184, 217, 0.10), transparent 70%),
    linear-gradient(180deg, #ffffff 0%, #f4f8ff 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.kb-trust-main > .eyebrow {
  margin-bottom: 14px;
}

.kb-trust-main h2 {
  margin: 0 0 10px;
  font-size: clamp(22px, 2.4vw, 28px);
}

.kb-trust-main > p {
  margin: 0 0 24px;
  font-size: 14.5px;
  color: var(--color-text-soft);
}

.kb-trust-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}

.kb-trust-item {
  padding: 18px 18px 16px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.kb-trust-item:hover {
  border-color: rgba(31, 99, 255, 0.28);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.kt-ic {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(31, 99, 255, 0.08);
  color: var(--color-primary);
  font-size: 18px;
  margin-bottom: 10px;
}

.kb-trust-item strong {
  display: block;
  font-size: 14.5px;
  color: var(--color-navy);
  font-weight: 700;
  margin-bottom: 4px;
}

.kb-trust-item p {
  margin: 0;
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.kb-trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 18px;
  border-top: 1px dashed var(--color-border);
}

.kb-trust-badges span {
  padding: 6px 12px;
  border-radius: 6px;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border-soft);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--color-text-soft);
}

/* 接入流程 */
.kb-onboard {
  padding: 32px 28px;
  background:
    radial-gradient(280px 160px at 0% 0%, rgba(255, 255, 255, 0.22), transparent 70%),
    linear-gradient(135deg, #1f63ff 0%, #2f74ff 55%, #00b8d9 100%);
  color: #fff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.kb-onboard::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.kb-onboard > * {
  position: relative;
  z-index: 1;
}

.kb-onboard .eyebrow {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
}

.kb-onboard h3 {
  color: #fff;
  font-size: 22px;
  margin: 12px 0 18px;
}

.kb-onboard-list {
  list-style: none;
  padding: 0;
  margin: 0 0 22px;
  display: grid;
  gap: 12px;
}

.kb-onboard-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
}

.ob-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #fff;
  color: var(--color-primary);
  font-weight: 800;
  display: grid;
  place-items: center;
  font-size: 14px;
  flex-shrink: 0;
}

.kb-onboard-list strong {
  display: block;
  font-size: 14.5px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 2px;
}

.kb-onboard-list small {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.5;
}

.kb-onboard .btn-primary {
  background: #fff;
  color: var(--color-primary);
  border: none;
}

.kb-onboard .btn-primary:hover {
  background: #fff;
  color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(8, 23, 64, 0.32);
}

.kb-onboard-tip {
  margin: 14px 0 0;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.92);
  text-align: center;
}

.kb-onboard-tip b {
  font-weight: 800;
  color: #facc15;
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .ai-workspace {
    padding: 28px 24px 24px;
  }
  .ai-ws-head {
    flex-direction: column;
  }
  .ai-ws-status {
    align-self: stretch;
  }
  .kb-flow {
    grid-template-columns: repeat(2, 1fr);
  }
  .kb-flow::before {
    display: none;
  }
  .kb-cats-pro {
    grid-template-columns: repeat(2, 1fr);
  }
  .kb-insight {
    grid-template-columns: 1fr;
  }
  .kb-cap-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .kb-role-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .kb-trust {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .ai-workspace {
    padding: 24px 18px 20px;
    border-radius: var(--radius-lg);
  }
  .ai-search-bar.pro {
    flex-wrap: wrap;
    padding: 8px 8px 8px 14px;
  }
  .ai-search-bar.pro input {
    width: 100%;
    padding: 12px 0;
  }
  .ai-search-bar.pro .btn {
    width: 100%;
    justify-content: center;
  }
  .ai-bar-tools {
    margin-left: auto;
  }
  .ai-mode-tip {
    width: 100%;
    margin-left: 0;
    text-align: center;
  }
  .ai-result-head {
    flex-direction: column;
    align-items: flex-start;
  }
  .kb-flow,
  .kb-cats-pro,
  .kb-cap-grid,
  .kb-role-grid,
  .kb-trust-grid {
    grid-template-columns: 1fr;
  }
  .kb-trust-main,
  .kb-onboard {
    padding: 28px 22px;
  }
  .kb-trend-list li {
    grid-template-columns: 32px 1fr auto;
    gap: 10px;
    padding: 10px;
  }
}

/* ==========================================================================
   通用 · 跨页面工具样式（chip / 渐变文字 / CTA 双按钮 / 小按钮）
   ========================================================================== */

h1 .accent,
h2 .accent {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.cta-actions {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 6px;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: 8px;
}

.chip-tab {
  appearance: none;
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-text-soft);
  font-size: 13.5px;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.chip-tab:hover {
  border-color: rgba(31, 99, 255, 0.35);
  color: var(--color-primary);
  background: rgba(31, 99, 255, 0.04);
}

.chip-tab.active {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 6px 16px rgba(31, 99, 255, 0.25);
}

.domain-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-soft);
  transition: all var(--transition);
}

.domain-chip:hover {
  border-color: rgba(31, 99, 255, 0.35);
  color: var(--color-primary);
  background: rgba(31, 99, 255, 0.06);
}

/* ==========================================================================
   成功案例页 · Cases
   ========================================================================== */

.cases-page main {
  background:
    radial-gradient(900px 500px at 90% -10%, rgba(31, 99, 255, 0.10), transparent 60%),
    radial-gradient(700px 400px at 0% 80%, rgba(0, 184, 217, 0.08), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #f3f7ff 60%, #eaf1fb 100%);
}

.cases-page .section,
.cases-page .section-soft,
.cases-page .cta {
  background: transparent;
}

.cases-hero {
  padding-bottom: 80px;
}

.cases-hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 48px;
  align-items: center;
  margin-top: 14px;
}

.cases-hero-main h1 {
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.2;
}

.cases-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}

.cases-hero-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(6px);
}

.ch-metric {
  padding: 16px 18px;
  background: linear-gradient(180deg, #ffffff, #f6f9ff);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  text-align: left;
}

.ch-metric strong {
  display: block;
  font-size: 30px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.1;
}

.ch-metric strong i {
  font-style: normal;
  font-size: 18px;
  margin-left: 2px;
}

.ch-metric span {
  display: block;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* ---- 案例筛选 ---- */
.cases-filter-section {
  padding: 36px 0;
}

.cases-filter,
.cases-domain-band {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.cases-filter-label,
.cases-domain-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-right: 4px;
}

.cases-filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.cases-domain-band {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed var(--color-border);
}

/* ---- 焦点案例 spotlight ---- */
.case-spotlight {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.cs-banner {
  padding: 36px 40px;
  position: relative;
  background:
    radial-gradient(500px 220px at 100% 0%, rgba(0, 184, 217, 0.18), transparent 60%),
    radial-gradient(500px 220px at 0% 100%, rgba(31, 99, 255, 0.22), transparent 60%),
    linear-gradient(135deg, #1f63ff 0%, #4d8bff 60%, #00b8d9 100%);
  color: #fff;
  overflow: hidden;
}

.cs-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
  mask-image: linear-gradient(135deg, #000, transparent 80%);
  -webkit-mask-image: linear-gradient(135deg, #000, transparent 80%);
}

.cs-banner-tags {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.cs-tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  color: #fff;
  backdrop-filter: blur(4px);
}

.cs-tag-hot {
  background: rgba(245, 158, 11, 0.95);
  border-color: rgba(245, 158, 11, 1);
  color: #fff;
}

.cs-banner h3 {
  color: #fff;
  font-size: clamp(20px, 2.4vw, 26px);
  margin: 6px 0 10px;
  position: relative;
}

.cs-banner-sub {
  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
  margin: 0;
  position: relative;
}

.cs-body {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 36px;
  padding: 36px 40px;
}

.cs-narrative-block {
  margin-bottom: 22px;
}

.cs-narrative-block:last-child {
  margin-bottom: 0;
}

.cs-block-kicker {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.cs-bullets {
  margin: 0;
  padding: 0;
  list-style: none;
}

.cs-bullets li {
  position: relative;
  padding: 6px 0 6px 22px;
  color: var(--color-text-soft);
  font-size: 14.5px;
}

.cs-bullets li::before {
  content: "▸";
  position: absolute;
  left: 4px;
  top: 6px;
  color: var(--color-primary);
  font-weight: 700;
}

.cs-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  align-content: start;
}

.cs-metric {
  padding: 16px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, #ffffff, #f6f9ff);
  transition: all var(--transition);
}

.cs-metric:hover {
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.cs-m-label {
  font-size: 12.5px;
  color: var(--color-text-muted);
  letter-spacing: 0.4px;
}

.cs-m-value {
  font-size: 26px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.2;
  margin: 4px 0 4px;
}

.cs-m-value i {
  font-style: normal;
  font-size: 16px;
  margin-left: 2px;
}

.cs-m-foot {
  font-size: 12px;
  color: var(--color-text-muted);
}

.cs-quote {
  display: flex;
  gap: 20px;
  padding: 26px 40px 36px;
  border-top: 1px solid var(--color-border-soft);
  background: linear-gradient(180deg, #f7faff, #ffffff);
}

.cs-quote-avatar {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 18px;
}

.cs-quote-body p {
  font-size: 15.5px;
  font-style: italic;
  color: var(--color-text);
  margin: 0 0 8px;
  line-height: 1.7;
}

.cs-quote-by {
  font-size: 13px;
  color: var(--color-text-muted);
}

.cs-quote-by b {
  color: var(--color-navy);
}

/* ---- 案例卡阵列 ---- */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card-pro {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
}

.case-card-pro:hover {
  transform: translateY(-4px);
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-lg);
}

.cp-banner {
  position: relative;
  height: 120px;
  padding: 18px 20px;
  color: #fff;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  overflow: hidden;
}

.cp-banner-1 { background: linear-gradient(135deg, #1f63ff, #4d8bff); }
.cp-banner-2 { background: linear-gradient(135deg, #16a34a, #14b8a6); }
.cp-banner-3 { background: linear-gradient(135deg, #f59e0b, #f97316); }
.cp-banner-4 { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.cp-banner-5 { background: linear-gradient(135deg, #0ea5e9, #1f63ff); }
.cp-banner-6 { background: linear-gradient(135deg, #ec4899, #f97316); }
.cp-banner-7 { background: linear-gradient(135deg, #14b8a6, #1f63ff); }
.cp-banner-8 { background: linear-gradient(135deg, #1849c6, #4f46e5); }
.cp-banner-9 { background: linear-gradient(135deg, #10b981, #0ea5e9); }

.cp-banner-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 90% 10%, rgba(255, 255, 255, 0.25), transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: auto, 24px 24px, 24px 24px;
  pointer-events: none;
}

.cp-banner-tag {
  position: relative;
  padding: 4px 12px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.cp-banner-icon {
  position: relative;
  font-size: 36px;
}

.cp-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.cp-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.cp-body h3 {
  font-size: 17.5px;
  margin: 0 0 8px;
  color: var(--color-navy);
}

.cp-body > p {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.6;
  margin: 0 0 12px;
}

.cp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.cp-tags span {
  padding: 3px 10px;
  background: rgba(31, 99, 255, 0.08);
  border-radius: 999px;
  font-size: 11.5px;
  color: var(--color-primary);
  font-weight: 600;
}

.cp-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 14px 0;
  margin-top: auto;
  border-top: 1px dashed var(--color-border);
  border-bottom: 1px dashed var(--color-border);
  margin-bottom: 14px;
}

.cp-stat {
  text-align: center;
}

.cp-stat .v {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-primary);
}

.cp-stat .l {
  font-size: 11.5px;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.case-load-more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 36px;
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ---- 行业分布 ---- */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.industry-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  transition: all var(--transition);
}

.industry-card:hover {
  transform: translateY(-3px);
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-md);
}

.industry-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.industry-card-icon {
  font-size: 32px;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(31, 99, 255, 0.1), rgba(0, 184, 217, 0.1));
  border-radius: var(--radius-md);
}

.industry-card-badge {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--color-primary);
  background: rgba(31, 99, 255, 0.08);
  padding: 4px 10px;
  border-radius: 999px;
}

.industry-card h3 {
  font-size: 17px;
  margin: 0 0 8px;
}

.industry-card p {
  font-size: 13.5px;
  color: var(--color-text-soft);
  margin: 0 0 14px;
}

.industry-card-foot {
  display: flex;
  gap: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--color-border);
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ---- 方法论流程 ---- */
.method-flow {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
  position: relative;
}

.method-flow::before {
  content: "";
  position: absolute;
  top: 38px;
  left: 5%;
  right: 5%;
  height: 2px;
  background: repeating-linear-gradient(
    to right,
    var(--color-primary) 0,
    var(--color-primary) 6px,
    transparent 6px,
    transparent 12px
  );
  opacity: 0.4;
  z-index: 0;
}

.method-step {
  position: relative;
  z-index: 1;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px 18px;
  text-align: center;
  transition: all var(--transition);
}

.method-step:hover {
  transform: translateY(-3px);
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-md);
}

.method-step-num {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-weight: 800;
  display: grid;
  place-items: center;
  font-size: 16px;
  box-shadow: 0 8px 18px rgba(31, 99, 255, 0.28);
}

.method-step h4 {
  margin: 0 0 6px;
  font-size: 15.5px;
  color: var(--color-navy);
}

.method-step p {
  font-size: 12.5px;
  color: var(--color-text-soft);
  margin: 0;
  line-height: 1.5;
}

/* ---- 声音 voices ---- */
.voices-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.voice-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 30px 28px 26px;
  transition: all var(--transition);
}

.voice-card:hover {
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-md);
}

.voice-mark {
  position: absolute;
  top: 4px;
  right: 18px;
  font-size: 90px;
  line-height: 1;
  color: rgba(31, 99, 255, 0.12);
  font-family: Georgia, serif;
}

.voice-card p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.75;
  margin: 0 0 18px;
}

.voice-by {
  display: flex;
  gap: 12px;
  align-items: center;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
}

.voice-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1f63ff, #00b8d9);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
}

.voice-avatar.v2 { background: linear-gradient(135deg, #16a34a, #14b8a6); }
.voice-avatar.v3 { background: linear-gradient(135deg, #f59e0b, #f97316); }
.voice-avatar.v4 { background: linear-gradient(135deg, #6366f1, #8b5cf6); }

.voice-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-navy);
}

.voice-org {
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ---- 合作伙伴 logo 墙 ---- */
.partner-wall {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}

.partner-wall .logo-cell {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  height: 64px;
  display: grid;
  place-items: center;
  text-align: center;
  font-weight: 700;
  font-size: 13.5px;
  color: var(--color-text-soft);
  padding: 8px;
  transition: all var(--transition);
}

.partner-wall .logo-cell:hover {
  border-color: rgba(31, 99, 255, 0.35);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

/* ==========================================================================
   新闻洞察页 · News
   ========================================================================== */

.news-page main {
  background:
    radial-gradient(900px 500px at 95% -10%, rgba(31, 99, 255, 0.10), transparent 60%),
    radial-gradient(700px 400px at 0% 90%, rgba(0, 184, 217, 0.08), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #f3f7ff 60%, #eaf1fb 100%);
}

.news-page .section,
.news-page .section-soft,
.news-page .cta {
  background: transparent;
}

.news-hero {
  padding-bottom: 70px;
}

.news-hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 40px;
  align-items: start;
  margin-top: 14px;
}

.news-hero-main h1 {
  font-size: clamp(28px, 4vw, 42px);
}

.news-hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 22px;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(4px);
}

.nh-stat strong {
  display: block;
  font-size: 22px;
  font-weight: 800;
  color: var(--color-navy);
}

.nh-stat strong i {
  font-style: normal;
  color: var(--color-primary);
  font-size: 15px;
  margin-left: 2px;
}

.nh-stat span {
  font-size: 12.5px;
  color: var(--color-text-muted);
}

.news-hero-sub {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.news-hero-card {
  position: relative;
  padding: 22px 24px;
  background: linear-gradient(135deg, #ffffff, #f3f7ff);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.news-hero-card:hover {
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.news-hero-card.alt {
  background: linear-gradient(135deg, #ecfdf5, #f0fdfa);
}

.news-hero-card-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  background: rgba(31, 99, 255, 0.1);
  border-radius: 999px;
  margin-bottom: 10px;
}

.news-hero-card.alt .news-hero-card-tag.tag-live {
  color: #b91c1c;
  background: rgba(239, 68, 68, 0.1);
}

.news-hero-card h3 {
  font-size: 17px;
  margin: 0 0 6px;
}

.news-hero-card p {
  font-size: 13.5px;
  color: var(--color-text-soft);
  margin: 0 0 10px;
}

/* ---- 筛选 + 搜索 ---- */
.news-filter-section {
  padding: 28px 0 24px;
}

.news-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  justify-content: space-between;
}

.news-filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  flex: 1;
}

.news-search {
  position: relative;
  display: flex;
  align-items: center;
  min-width: 280px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0 16px;
  transition: all var(--transition);
}

.news-search:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(31, 99, 255, 0.12);
}

.news-search-icon {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-right: 8px;
}

.news-search input {
  border: 0;
  outline: 0;
  background: transparent;
  padding: 12px 0;
  flex: 1;
  font-size: 13.5px;
  font-family: inherit;
  color: var(--color-text);
}

/* ---- 头版焦点 ---- */
.news-feature {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 28px;
}

.news-feature-main {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.news-feature-main:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.news-feature-img {
  position: relative;
  height: 280px;
  overflow: hidden;
}

.news-img-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.3), transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: auto, 28px 28px, 28px 28px;
}

.news-feature-badge {
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 2;
  padding: 6px 14px;
  background: rgba(245, 158, 11, 0.95);
  color: #fff;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 6px 18px rgba(245, 158, 11, 0.35);
}

.news-img-1,
.news-img-2,
.news-img-3,
.news-img-4,
.news-img-5,
.news-img-6,
.news-img-7,
.news-img-8 {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-color: #dbeafe;
}

.news-img-1 {
  background-image:
    linear-gradient(135deg, rgba(10, 37, 99, 0.18), rgba(31, 99, 255, 0.08)),
    url("../images/news/vocational-digital-lab.jpg");
}

.news-img-2 {
  background-image:
    linear-gradient(135deg, rgba(17, 24, 39, 0.18), rgba(99, 102, 241, 0.1)),
    url("../images/news/industry-education-robotics.jpg");
}

.news-img-3 {
  background-image:
    linear-gradient(135deg, rgba(4, 120, 87, 0.18), rgba(20, 184, 166, 0.08)),
    url("../images/news/ai-classroom.jpg");
}

.news-img-4 {
  background-image:
    linear-gradient(135deg, rgba(15, 23, 42, 0.26), rgba(14, 165, 233, 0.08)),
    url("../images/news/education-data-conference.jpg");
}

.news-img-5 {
  background-image:
    linear-gradient(135deg, rgba(8, 47, 73, 0.18), rgba(31, 99, 255, 0.08)),
    url("../images/news/skills-training-lab.jpg");
}

.news-img-6 {
  background-image:
    linear-gradient(135deg, rgba(124, 45, 18, 0.16), rgba(236, 72, 153, 0.08)),
    url("../images/news/internship-workshop.jpg");
}

.news-img-7 {
  background-image:
    linear-gradient(135deg, rgba(6, 78, 59, 0.18), rgba(99, 102, 241, 0.08)),
    url("../images/news/lifelong-training-seminar.jpg");
}

.news-img-8 {
  background-image:
    linear-gradient(135deg, rgba(15, 23, 42, 0.18), rgba(79, 70, 229, 0.08)),
    url("../images/news/modern-vocational-base.jpg");
}

.news-feature-body {
  padding: 26px 30px 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-feature-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  font-size: 12.5px;
  color: var(--color-text-muted);
  margin-bottom: 10px;
  align-items: center;
}

.news-cat {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: 11.5px;
  font-weight: 700;
  border-radius: 999px;
  letter-spacing: 0.3px;
}

.cat-policy { color: #b45309; background: rgba(245, 158, 11, 0.12); }
.cat-product { color: var(--color-primary); background: rgba(31, 99, 255, 0.1); }
.cat-case { color: #15803d; background: rgba(22, 163, 74, 0.12); }
.cat-insight { color: #6d28d9; background: rgba(139, 92, 246, 0.12); }
.cat-media { color: #0e7490; background: rgba(14, 165, 233, 0.12); }

.news-feature-body h2 {
  font-size: 24px;
  line-height: 1.35;
  margin: 0 0 10px;
}

.news-feature-body > p {
  font-size: 15px;
  color: var(--color-text-soft);
  line-height: 1.7;
  margin: 0 0 14px;
}

.news-feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
}

.news-feature-tags span {
  padding: 3px 10px;
  background: var(--color-bg-soft);
  border-radius: 999px;
  font-size: 11.5px;
  color: var(--color-text-soft);
}

.news-feature-foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
  flex-wrap: wrap;
}

.news-author {
  display: flex;
  align-items: center;
  gap: 10px;
}

.news-author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 14px;
}

.news-author-name {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--color-navy);
}

.news-author-tag {
  font-size: 11.5px;
  color: var(--color-text-muted);
}

.news-feature-side {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.news-side-card {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px;
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.news-side-card:hover {
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-sm);
}

.news-side-img {
  height: 90px;
  border-radius: 8px;
  position: relative;
}

.news-side-body h3 {
  font-size: 14.5px;
  margin: 6px 0 4px;
  line-height: 1.4;
}

.news-side-meta {
  font-size: 11.5px;
  color: var(--color-text-muted);
}

/* ---- 列表 ---- */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.news-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.news-row:hover {
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.news-row-img {
  height: 140px;
  border-radius: var(--radius-md);
  position: relative;
}

.news-row-body {
  display: flex;
  flex-direction: column;
}

.news-row-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  font-size: 12.5px;
  color: var(--color-text-muted);
  margin-bottom: 8px;
  align-items: center;
}

.news-row-body h3 {
  font-size: 18px;
  margin: 0 0 6px;
}

.news-row-body > p {
  font-size: 14px;
  color: var(--color-text-soft);
  margin: 0 0 12px;
  line-height: 1.65;
}

.news-row-foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px dashed var(--color-border);
  font-size: 12.5px;
}

.news-author-mini {
  color: var(--color-text-muted);
}

/* ---- 分页 ---- */
.news-pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
}

.news-page-btn,
.news-page-num {
  appearance: none;
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-text-soft);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: all var(--transition);
}

.news-page-num {
  min-width: 36px;
  text-align: center;
}

.news-page-btn:hover,
.news-page-num:hover {
  border-color: rgba(31, 99, 255, 0.35);
  color: var(--color-primary);
}

.news-page-num.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.news-page-list {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text-muted);
}

/* ---- 新闻详情 ---- */
.news-article-page main {
  background:
    radial-gradient(900px 500px at 95% -10%, rgba(31, 99, 255, 0.10), transparent 60%),
    radial-gradient(700px 400px at 0% 90%, rgba(0, 184, 217, 0.08), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #f4f8ff 60%, #edf3fc 100%);
}

.article-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) 320px;
  gap: 24px;
  align-items: start;
}

.article-main,
.article-side-card {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.article-main {
  overflow: hidden;
}

.article-cover {
  position: relative;
  height: 280px;
  overflow: hidden;
}

.article-body {
  padding: 30px 32px 34px;
}

.article-lead {
  margin: 0 0 22px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--color-navy);
}

.article-body h2 {
  margin: 28px 0 12px;
  font-size: 24px;
}

.article-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--color-text-soft);
}

.article-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.article-points li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

.article-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
}

.article-note {
  margin-top: 28px;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(31, 99, 255, 0.08), rgba(0, 184, 217, 0.08));
  border: 1px solid rgba(31, 99, 255, 0.14);
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-navy);
}

.article-note strong {
  color: var(--color-primary);
}

.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.article-side-card {
  padding: 22px 22px 24px;
}

.article-side-card h3 {
  margin: 0 0 12px;
  font-size: 18px;
}

.article-side-card p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--color-text-soft);
}

.article-meta-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.article-meta-list li {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--color-text-soft);
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--color-border);
}

.article-meta-list li:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.article-meta-list b {
  color: var(--color-navy);
}

.related-list {
  display: grid;
  gap: 12px;
}

.related-list a {
  display: block;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--color-border);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--color-text-soft);
}

.related-list a:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.related-list a:hover {
  color: var(--color-primary);
}

/* ---- 白皮书 ---- */
.paper-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.paper-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
}

.paper-card:hover {
  transform: translateY(-4px);
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-lg);
}

.paper-cover {
  position: relative;
  height: 180px;
  padding: 22px 20px;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

.paper-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 100% 0%, rgba(255, 255, 255, 0.25), transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: auto, 22px 22px, 22px 22px;
  pointer-events: none;
}

.paper-cover-1 { background: linear-gradient(135deg, #1f63ff, #00b8d9); }
.paper-cover-2 { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.paper-cover-3 { background: linear-gradient(135deg, #16a34a, #14b8a6); }
.paper-cover-4 { background: linear-gradient(135deg, #f59e0b, #f97316); }

.paper-cover-tag {
  position: relative;
  align-self: flex-start;
  padding: 4px 12px;
  font-size: 11.5px;
  font-weight: 700;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
}

.paper-cover-title {
  position: relative;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
}

.paper-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.paper-meta {
  display: flex;
  gap: 14px;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.paper-body h3 {
  font-size: 16px;
  margin: 0 0 6px;
  color: var(--color-navy);
}

.paper-body p {
  font-size: 13.5px;
  color: var(--color-text-soft);
  margin: 0 0 14px;
  flex: 1;
}

/* ---- 行业观点 ---- */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.expert-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 26px;
  transition: all var(--transition);
}

.expert-card:hover {
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-md);
}

.expert-top {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 14px;
}

.expert-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1f63ff, #00b8d9);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 18px;
}

.expert-avatar.v2 { background: linear-gradient(135deg, #16a34a, #14b8a6); }
.expert-avatar.v3 { background: linear-gradient(135deg, #f59e0b, #f97316); }
.expert-avatar.v4 { background: linear-gradient(135deg, #6366f1, #8b5cf6); }

.expert-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-navy);
}

.expert-title {
  font-size: 12.5px;
  color: var(--color-text-muted);
}

.expert-card h3 {
  font-size: 17px;
  margin: 0 0 10px;
}

.expert-card p {
  font-size: 14px;
  color: var(--color-text-soft);
  margin: 0 0 14px;
}

.expert-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
  font-size: 12.5px;
  color: var(--color-text-muted);
}

/* ---- 活动日历 ---- */
.event-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.event-row {
  display: grid;
  grid-template-columns: 130px 1fr auto;
  gap: 22px;
  align-items: center;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.event-row:hover {
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-md);
}

.event-row-live {
  border-color: rgba(239, 68, 68, 0.35);
  background: linear-gradient(135deg, #fff, #fff7f7);
}

.event-date {
  text-align: center;
  padding: 14px 0;
  border-right: 1px dashed var(--color-border);
}

.event-date-day {
  font-size: 36px;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.event-date-mon {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text);
  margin-top: 4px;
}

.event-date-status {
  font-size: 11.5px;
  color: var(--color-text-muted);
  margin-top: 6px;
}

.event-tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: 11.5px;
  font-weight: 700;
  background: rgba(31, 99, 255, 0.1);
  color: var(--color-primary);
  border-radius: 999px;
  margin-bottom: 8px;
}

.event-tag.tag-live {
  background: rgba(239, 68, 68, 0.12);
  color: #b91c1c;
  animation: livePulse 1.6s ease-in-out infinite;
}

@keyframes livePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
  50% { box-shadow: 0 0 0 6px rgba(239, 68, 68, 0); }
}

.event-body h3 {
  font-size: 17px;
  margin: 0 0 6px;
}

.event-body p {
  font-size: 13.5px;
  color: var(--color-text-soft);
  margin: 0 0 10px;
}

.event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ---- 订阅 + 媒体 ---- */
.news-bottom-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 24px;
}

.subscribe-card,
.media-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 32px 30px;
  transition: all var(--transition);
}

.subscribe-card {
  background:
    radial-gradient(500px 220px at 100% 0%, rgba(0, 184, 217, 0.12), transparent 60%),
    linear-gradient(180deg, #ffffff, #f3f7ff);
}

.subscribe-kicker,
.media-kicker {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  background: rgba(31, 99, 255, 0.1);
  border-radius: 999px;
  margin-bottom: 14px;
}

.subscribe-card h3,
.media-card h3 {
  font-size: 22px;
  margin: 0 0 10px;
  line-height: 1.4;
}

.subscribe-form {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.subscribe-form input {
  flex: 1;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 12px 18px;
  background: #fff;
  font-family: inherit;
  font-size: 14px;
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.subscribe-form input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(31, 99, 255, 0.12);
}

.subscribe-foot {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--color-text-muted);
}

.subscribe-foot b {
  color: var(--color-primary);
}

.media-list {
  list-style: none;
  padding: 0;
  margin: 14px 0;
}

.media-list li {
  padding: 8px 0;
  font-size: 14px;
  color: var(--color-text-soft);
  border-bottom: 1px dashed var(--color-border);
}

.media-list li:last-child {
  border-bottom: none;
}

.media-list b {
  color: var(--color-navy);
  margin-right: 6px;
}

/* ==========================================================================
   联系我们页 · Contact
   ========================================================================== */

.contact-page main {
  background:
    radial-gradient(900px 500px at 100% -10%, rgba(31, 99, 255, 0.1), transparent 60%),
    radial-gradient(700px 400px at 0% 100%, rgba(0, 184, 217, 0.08), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #f3f7ff 60%, #eaf1fb 100%);
}

.contact-page .section,
.contact-page .section-soft,
.contact-page .cta {
  background: transparent;
}

.contact-hero {
  padding-bottom: 70px;
}

.contact-hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: start;
  margin-top: 14px;
}

.contact-hero-main h1 {
  font-size: clamp(28px, 4vw, 42px);
}

.contact-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 24px 0 28px;
}

.contact-promise {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.cp-item {
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: left;
}

.cp-item strong {
  display: block;
  font-size: 15.5px;
  color: var(--color-navy);
  font-weight: 800;
}

.cp-item span {
  font-size: 12.5px;
  color: var(--color-text-muted);
}

.contact-hero-card {
  position: relative;
  padding: 28px;
  background:
    radial-gradient(400px 180px at 100% 0%, rgba(0, 184, 217, 0.15), transparent 60%),
    linear-gradient(180deg, #ffffff, #f3f7ff);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.ch-card-tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 700;
  background: rgba(245, 158, 11, 0.12);
  color: #b45309;
  border-radius: 999px;
  margin-bottom: 12px;
}

.contact-hero-card h3 {
  font-size: 20px;
  margin: 0 0 10px;
  line-height: 1.4;
}

.contact-hero-card > p {
  font-size: 14px;
  color: var(--color-text-soft);
  margin: 0 0 14px;
}

.ch-card-list {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
}

.ch-card-list li {
  padding: 6px 0;
  font-size: 13.5px;
  color: var(--color-text);
  border-bottom: 1px dashed var(--color-border);
}

.ch-card-list li:last-child {
  border-bottom: none;
}

.ch-card-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
  font-size: 12.5px;
  color: var(--color-text-muted);
}

/* ---- 多通道 ---- */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.channel-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 26px 24px;
  transition: all var(--transition);
}

.channel-card:hover {
  transform: translateY(-3px);
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-md);
}

.channel-primary {
  background:
    radial-gradient(300px 160px at 100% 0%, rgba(31, 99, 255, 0.12), transparent 60%),
    linear-gradient(180deg, #ffffff, #f3f7ff);
  border-color: rgba(31, 99, 255, 0.25);
}

.channel-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(31, 99, 255, 0.12), rgba(0, 184, 217, 0.12));
  color: var(--color-primary);
  display: grid;
  place-items: center;
  font-size: 24px;
  margin-bottom: 14px;
}

.channel-card h3 {
  font-size: 18px;
  margin: 0 0 6px;
}

.channel-card > p {
  font-size: 13.5px;
  color: var(--color-text-soft);
  margin: 0 0 12px;
}

.channel-list {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
}

.channel-list li {
  padding: 6px 0;
  font-size: 13.5px;
  color: var(--color-text);
  border-bottom: 1px dashed var(--color-border);
}

.channel-list li:last-child {
  border-bottom: none;
}

/* ---- 表单 + 流程 ---- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.contact-form {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 30px 32px;
  box-shadow: var(--shadow-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
}

.form-row .form-field {
  margin-bottom: 0;
}

.form-field span {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-navy);
}

.form-field span i {
  color: #ef4444;
  font-style: normal;
  margin-left: 2px;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 11px 14px;
  font-family: inherit;
  font-size: 14px;
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-field textarea {
  resize: vertical;
  min-height: 88px;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(31, 99, 255, 0.12);
}

.form-options {
  background: var(--color-bg-soft);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-bottom: 18px;
}

.form-check {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-check label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  color: var(--color-text);
  cursor: pointer;
}

.form-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
}

.form-agreement {
  margin-bottom: 18px;
}

.form-agreement label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--color-text-soft);
  cursor: pointer;
}

.form-agreement input[type="checkbox"] {
  margin-top: 3px;
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
}

.form-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--color-text-muted);
}

.form-side {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-side-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 26px;
}

.form-side-card.alt {
  background: linear-gradient(180deg, #f3f7ff, #ffffff);
}

.form-side-card h3 {
  font-size: 17px;
  margin: 0 0 14px;
}

.form-side-flow {
  margin: 0;
  padding: 0;
  list-style: none;
  position: relative;
}

.form-side-flow::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: repeating-linear-gradient(
    to bottom,
    rgba(31, 99, 255, 0.35) 0,
    rgba(31, 99, 255, 0.35) 4px,
    transparent 4px,
    transparent 10px
  );
}

.form-side-flow li {
  position: relative;
  padding-left: 48px;
  margin-bottom: 16px;
}

.form-side-flow li:last-child {
  margin-bottom: 0;
}

.flow-num {
  position: absolute;
  left: 0;
  top: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-weight: 800;
  display: grid;
  place-items: center;
  font-size: 12.5px;
  box-shadow: 0 6px 14px rgba(31, 99, 255, 0.28);
}

.form-side-flow li strong {
  display: block;
  font-size: 14px;
  color: var(--color-navy);
  margin-bottom: 2px;
}

.form-side-flow li p {
  font-size: 12.5px;
  color: var(--color-text-soft);
  margin: 0;
  line-height: 1.55;
}

.form-side-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.form-side-list li {
  padding: 8px 0;
  font-size: 13.5px;
  color: var(--color-text-soft);
  border-bottom: 1px dashed var(--color-border);
}

.form-side-list li:last-child {
  border-bottom: none;
}

.form-side-list b {
  color: var(--color-navy);
  margin-right: 4px;
}

/* ---- 办事处 ---- */
.office-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.office-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition);
}

.office-card:hover {
  transform: translateY(-3px);
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-md);
}

.office-hq {
  background:
    radial-gradient(360px 180px at 100% 0%, rgba(31, 99, 255, 0.12), transparent 60%),
    linear-gradient(180deg, #ffffff, #f3f7ff);
  border-color: rgba(31, 99, 255, 0.3);
}

.office-future {
  background: linear-gradient(180deg, #fff, #f7faff);
  border-style: dashed;
}

.office-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--color-primary);
  background: rgba(31, 99, 255, 0.1);
  border-radius: 999px;
  margin-bottom: 10px;
}

.office-hq .office-tag {
  background: rgba(245, 158, 11, 0.15);
  color: #b45309;
}

.office-flag {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.office-card h3 {
  font-size: 19px;
  margin: 0 0 6px;
}

.office-card > p {
  font-size: 13.5px;
  color: var(--color-text-soft);
  margin: 0 0 12px;
}

.office-info {
  list-style: none;
  padding: 0;
  margin: 0 0 12px;
}

.office-info li {
  padding: 6px 0;
  font-size: 13px;
  color: var(--color-text);
  border-bottom: 1px dashed var(--color-border);
}

.office-info li:last-child {
  border-bottom: none;
}

.office-region {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-bg-soft);
  border-radius: 999px;
}

/* ---- FAQ ---- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 920px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-item[open] {
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-md);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-weight: 700;
  color: var(--color-navy);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-q {
  font-size: 15px;
}

.faq-icon {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(31, 99, 255, 0.1);
  color: var(--color-primary);
  font-weight: 800;
  font-size: 16px;
  flex-shrink: 0;
  transition: transform var(--transition), background var(--transition);
}

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
  background: var(--color-primary);
  color: #fff;
}

.faq-a {
  padding: 0 24px 18px;
  color: var(--color-text-soft);
  font-size: 14px;
  line-height: 1.75;
}

.faq-a p {
  margin: 0 0 8px;
}

.faq-a ul {
  margin: 6px 0;
  padding-left: 22px;
}

.faq-a ul li {
  margin: 4px 0;
}

/* ---- Follow / 关注 ---- */
.follow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.follow-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 26px;
  text-align: center;
  transition: all var(--transition);
}

.follow-card:hover {
  transform: translateY(-3px);
  border-color: rgba(31, 99, 255, 0.3);
  box-shadow: var(--shadow-md);
}

.follow-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 12px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(31, 99, 255, 0.12), rgba(0, 184, 217, 0.12));
  color: var(--color-primary);
  display: grid;
  place-items: center;
  font-size: 24px;
}

.follow-card h3 {
  font-size: 16px;
  margin: 0 0 8px;
}

.follow-card p {
  font-size: 13px;
  color: var(--color-text-soft);
  margin: 0 0 14px;
}

.follow-qr {
  width: 120px;
  height: 120px;
  margin: 0 auto 10px;
  border-radius: var(--radius-md);
  background:
    repeating-linear-gradient(0deg, rgba(31, 99, 255, 0.12) 0 4px, transparent 4px 8px),
    repeating-linear-gradient(90deg, rgba(31, 99, 255, 0.12) 0 4px, transparent 4px 8px),
    linear-gradient(135deg, #f3f7ff, #eaf1fb);
  border: 1px solid var(--color-border);
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 2px;
}

.follow-qr.alt {
  background:
    repeating-linear-gradient(0deg, rgba(22, 163, 74, 0.12) 0 4px, transparent 4px 8px),
    repeating-linear-gradient(90deg, rgba(22, 163, 74, 0.12) 0 4px, transparent 4px 8px),
    linear-gradient(135deg, #ecfdf5, #f0fdfa);
  color: #15803d;
}

.follow-qr.v3 {
  background:
    repeating-linear-gradient(0deg, rgba(245, 158, 11, 0.12) 0 4px, transparent 4px 8px),
    repeating-linear-gradient(90deg, rgba(245, 158, 11, 0.12) 0 4px, transparent 4px 8px),
    linear-gradient(135deg, #fff7ed, #fffbeb);
  color: #b45309;
}

.follow-name {
  display: block;
  font-size: 12.5px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.follow-links {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
  text-align: left;
}

.follow-links li {
  padding: 6px 0;
  font-size: 13px;
  color: var(--color-text-soft);
  border-bottom: 1px dashed var(--color-border);
}

.follow-links li:last-child {
  border-bottom: none;
}

.follow-links b {
  color: var(--color-navy);
  margin-right: 4px;
}

/* ==========================================================================
   响应式 · 成功案例 / 新闻洞察 / 联系我们
   ========================================================================== */

@media (max-width: 1024px) {
  .cases-hero-grid,
  .news-hero-grid,
  .contact-hero-grid {
    grid-template-columns: 1fr;
  }
  .cases-hero-metrics {
    grid-template-columns: repeat(4, 1fr);
  }
  .case-grid,
  .industry-grid,
  .paper-grid,
  .follow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .method-flow {
    grid-template-columns: repeat(3, 1fr);
  }
  .method-flow::before {
    display: none;
  }
  .news-feature,
  .article-shell,
  .news-bottom-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }
  .channel-grid,
  .office-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .voices-grid,
  .expert-grid {
    grid-template-columns: 1fr;
  }
  .partner-wall {
    grid-template-columns: repeat(4, 1fr);
  }
  .cs-body {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .news-hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-promise {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .cases-hero-metrics {
    grid-template-columns: repeat(2, 1fr);
    padding: 20px;
  }
  .ch-metric {
    padding: 12px 14px;
  }
  .ch-metric strong {
    font-size: 24px;
  }
  .case-grid,
  .industry-grid,
  .paper-grid,
  .channel-grid,
  .office-grid,
  .follow-grid {
    grid-template-columns: 1fr;
  }
  .method-flow {
    grid-template-columns: repeat(2, 1fr);
  }
  .partner-wall {
    grid-template-columns: repeat(2, 1fr);
  }
  .cs-banner,
  .cs-body,
  .cs-quote {
    padding-left: 22px;
    padding-right: 22px;
  }
  .cs-banner {
    padding-top: 26px;
    padding-bottom: 26px;
  }
  .cs-metrics {
    grid-template-columns: repeat(2, 1fr);
  }
  .news-row,
  .news-side-card {
    grid-template-columns: 1fr;
  }
  .article-body {
    padding: 24px 22px 26px;
  }
  .article-cover {
    height: 220px;
  }
  .article-side-card {
    padding: 20px;
  }
  .news-row-img,
  .news-side-img {
    height: 160px;
  }
  .news-feature-img {
    height: 220px;
  }
  .news-filter {
    flex-direction: column;
    align-items: stretch;
  }
  .news-search {
    min-width: 0;
  }
  .event-row {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .event-date {
    display: flex;
    align-items: baseline;
    gap: 10px;
    text-align: left;
    border-right: none;
    border-bottom: 1px dashed var(--color-border);
    padding: 0 0 12px;
  }
  .event-date-day {
    font-size: 28px;
  }
  .event-action .btn {
    width: 100%;
    justify-content: center;
  }
  .subscribe-form {
    flex-direction: column;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .contact-promise {
    grid-template-columns: 1fr;
  }
  .news-hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .news-pager {
    flex-wrap: wrap;
    gap: 10px;
  }
}