/* =============================================================
   内蒙古融合教育资源中心平台 · 官网
   设计系统：蒂芙尼蓝 (Tiffany Blue)
   ============================================================= */
:root {
  /* 品牌色板 */
  --tiffany: #0abab5;
  --tiffany-dark: #0e7c86;
  --tiffany-soft: #e6f9f7;
  --tiffany-mist: #f0fbfa;
  --accent: #ff9f43;
  --ink: #24323f;
  --slate: #6b7a84;
  --line: #e7f0ef;
  --white: #ffffff;

  /* 渐变 */
  --grad-brand: linear-gradient(135deg, #0abab5, #5edbd6);

  /* 字体 */
  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-num: "Inter", "Helvetica Neue", Arial, sans-serif;

  /* 圆角/阴影 */
  --radius-s: 10px;
  --radius-m: 16px;
  --radius-l: 22px;
  --shadow-soft: 0 12px 40px rgba(10, 186, 181, 0.12);
  --shadow-card: 0 8px 30px rgba(36, 50, 63, 0.08);

  /* 排版 */
  --maxw: 1200px;
  --nav-h: 72px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
section { position: relative; }
.no-scroll { overflow: hidden; }

/* ---------- 通用布局 ---------- */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section-pad { padding: 96px 0; }
.section-head { text-align: center; margin-bottom: 56px; }
.section-kicker {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--tiffany);
  background: var(--tiffany-soft);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.section-title { font-size: clamp(26px, 4vw, 40px); font-weight: 700; line-height: 1.25; }
.section-desc { color: var(--slate); max-width: 640px; margin: 16px auto 0; font-size: 17px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 48px; padding: 0 28px;
  border-radius: 999px; font-weight: 600; font-size: 16px;
  cursor: pointer; border: 2px solid transparent;
  transition: all 0.25s ease; white-space: nowrap;
}
.btn--primary { background: var(--tiffany); color: #fff; box-shadow: 0 10px 24px rgba(10, 186, 181, 0.35); }
.btn--primary:hover { background: var(--tiffany-dark); transform: translateY(-2px); box-shadow: 0 14px 30px rgba(14, 124, 134, 0.4); }

/* ---------- 顶部导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; height: 100%; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand .logo { width: 44px; height: 44px; border-radius: 50%; overflow: hidden; box-shadow: 0 0 0 3px rgba(10, 186, 181, 0.15); flex-shrink: 0; }
.brand .logo img { width: 100%; height: 100%; object-fit: cover; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text .t1 { font-size: 17px; font-weight: 700; color: var(--tiffany-dark); }
.brand-text .t2 { font-size: 12px; color: var(--slate); }

.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 15px; font-weight: 500; color: var(--ink); position: relative; padding: 6px 0; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px;
  background: var(--grad-brand); border-radius: 2px; transition: width 0.25s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--tiffany); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-cta .btn { height: 40px; padding: 0 20px; font-size: 14px; }

/* 汉堡按钮（移动端） */
.nav-toggle { display: none; width: 44px; height: 44px; border: none; background: none; cursor: pointer; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: 0.3s; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--grad-brand);
  color: #fff;
  padding: 110px 0 120px;
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 15% 25%, rgba(255, 255, 255, 0.18), transparent 40%),
    radial-gradient(circle at 85% 75%, rgba(255, 255, 255, 0.12), transparent 45%);
}
.hero-blob { position: absolute; border-radius: 50%; filter: blur(20px); opacity: 0.25; }
.hero-grid { position: relative; display: flex; align-items: center; gap: 48px; }
.hero-copy { flex: 1.1; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, 0.18); border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 6px 16px; border-radius: 999px; font-size: 14px; margin-bottom: 24px;
}
.hero-title { font-size: clamp(30px, 5.4vw, 52px); font-weight: 800; line-height: 1.18; letter-spacing: 0.5px; }
.hero-title em { font-style: normal; color: #fff3e0; }
.hero-sub { margin-top: 20px; font-size: clamp(15px, 2vw, 19px); max-width: 560px; opacity: 0.95; }
.hero-actions { display: flex; gap: 16px; margin-top: 34px; flex-wrap: wrap; }
.hero-actions .btn--light { background: #fff; color: var(--tiffany-dark); }
.hero-actions .btn--light:hover { background: var(--tiffany-mist); }
.hero-actions .btn--outline-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.7); }
.hero-actions .btn--outline-light:hover { background: rgba(255, 255, 255, 0.15); }
.hero-stats { display: flex; gap: 40px; margin-top: 48px; flex-wrap: wrap; }
.hero-stat .num { font-family: var(--font-num); font-size: 32px; font-weight: 800; }
.hero-stat .label { font-size: 14px; opacity: 0.9; margin-top: 2px; }

.hero-visual {
  flex: 0.9; position: relative; display: flex; justify-content: center;
}
.hero-illustration { width: min(420px, 100%); aspect-ratio: 1; border-radius: var(--radius-l); overflow: hidden; background: rgba(255, 255, 255, 0.15); padding: 12px; backdrop-filter: blur(4px); }
.hero-illustration img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius-m); }

.hero-wave { position: absolute; bottom: -1px; left: 0; width: 100%; }
.hero-wave svg { display: block; width: 100%; height: 60px; }

/* ---------- 价值卡 ---------- */
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.value-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-l);
  padding: 34px 28px; box-shadow: var(--shadow-card); transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.value-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-soft); border-color: rgba(10, 186, 181, 0.3); }
.value-icon { width: 60px; height: 60px; border-radius: 18px; display: flex; align-items: center; justify-content: center; margin-bottom: 22px; background: var(--tiffany-soft); color: var(--tiffany); }
.value-icon svg { width: 30px; height: 30px; }
.value-card h3 { font-size: 20px; margin-bottom: 10px; }
.value-card p { color: var(--slate); font-size: 15px; }

/* ---------- 流程时间轴 ---------- */
.flow-wrap { position: relative; }
.flow { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.flow-item { text-align: center; position: relative; padding-top: 12px; }
.flow-item::before {
  content: ""; position: absolute; top: 22px; left: -50%; width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--tiffany-soft), var(--tiffany), var(--tiffany-soft));
  z-index: 0;
}
.flow-item:first-child::before { display: none; }
.flow-node {
  position: relative; z-index: 1; width: 46px; height: 46px; margin: 0 auto;
  border-radius: 50%; background: #fff; border: 2px solid var(--tiffany);
  display: flex; align-items: center; justify-content: center; color: var(--tiffany);
  font-weight: 700; font-size: 18px; font-family: var(--font-num);
}
.flow-item.active .flow-node { background: var(--tiffany); color: #fff; }
.flow-item h4 { margin-top: 14px; font-size: 16px; }
.flow-item p { font-size: 13px; color: var(--slate); margin-top: 4px; }

/* ---------- 模块速览 ---------- */
.modules-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.module-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-m);
  padding: 26px 22px; transition: all 0.25s ease; cursor: pointer; position: relative; overflow: hidden;
}
.module-card::before {
  content: ""; position: absolute; left: 0; top: 0; height: 100%; width: 3px;
  background: var(--grad-brand); transform: scaleY(0); transform-origin: top; transition: transform 0.3s ease;
}
.module-card:hover { box-shadow: var(--shadow-card); transform: translateY(-4px); border-color: rgba(10, 186, 181, 0.4); }
.module-card:hover::before { transform: scaleY(1); }
.module-card .m-icon { width: 46px; height: 46px; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: var(--tiffany-soft); color: var(--tiffany); margin-bottom: 16px; }
.module-card .m-icon svg { width: 24px; height: 24px; }
.module-card h4 { font-size: 17px; margin-bottom: 6px; }
.module-card p { font-size: 13.5px; color: var(--slate); }
.modules-grid--wide { grid-template-columns: repeat(2, 1fr); }

/* ---------- 场景墙 ---------- */
.scene-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.scene-card {
  border-radius: var(--radius-l); padding: 30px 24px; color: #fff; position: relative; overflow: hidden;
  min-height: 200px; display: flex; flex-direction: column; justify-content: flex-end; cursor: pointer;
  transition: transform 0.3s ease;
}
.scene-card:hover { transform: translateY(-6px); }
.scene-card .sc-icon { position: absolute; top: 22px; right: 22px; opacity: 0.55; }
.scene-card .sc-icon svg { width: 40px; height: 40px; }
.scene-card h4 { font-size: 20px; margin-bottom: 6px; }
.scene-card p { font-size: 13.5px; opacity: 0.92; }
.scene-card--teacher { background: linear-gradient(160deg, #0abab5, #3fc4c0); }
.scene-card--principal { background: linear-gradient(160deg, #0e7c86, #2b9aa2); }
.scene-card--operator { background: linear-gradient(160deg, #0a8f8b, #0abab5); }
.scene-card--parent { background: linear-gradient(160deg, #ffb765, #ff9f43); }

/* ---------- CTA 区块 ---------- */
.cta-band {
  background: var(--grad-brand); border-radius: var(--radius-l); padding: 60px; text-align: center;
  color: #fff; position: relative; overflow: hidden;
}
.cta-band::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.2), transparent 45%); }
.cta-band h2 { font-size: clamp(24px, 3.6vw, 36px); position: relative; }
.cta-band p { margin: 12px auto 28px; max-width: 520px; opacity: 0.95; position: relative; }
.cta-band .hero-actions { justify-content: center; position: relative; }

/* ---------- 页脚 ---------- */
.footer { background: #0b2a2c; color: #cfe7e6; padding: 64px 0 28px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
.footer .brand-text .t1 { color: #fff; }
.footer .brand-text .t2 { color: #8fb7b6; }
.footer-about { font-size: 14px; margin-top: 18px; line-height: 1.8; color: #a5c6c5; max-width: 300px; }
.footer-col h5 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.footer-col a { display: block; font-size: 14px; color: #a5c6c5; margin-bottom: 12px; transition: color 0.2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); margin-top: 48px; padding-top: 24px; text-align: center; font-size: 13px; color: #8fb7b6; }
.footer-bottom a { color: #a5c6c5; }
.footer-bottom a:hover { color: #fff; }
.footer-links { display: inline-flex; gap: 8px; align-items: center; }

/* ---------- 页头 banner（内页） ---------- */
.page-hero { background: var(--grad-brand); color: #fff; padding: 88px 0 100px; text-align: center; }
.page-hero h1 { font-size: clamp(28px, 5vw, 44px); font-weight: 800; }
.page-hero p { margin: 16px auto 0; max-width: 640px; opacity: 0.95; font-size: 17px; }

/* ---------- 蒂芙尼蓝背景：浮动小球 ---------- */
.bubbles { position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 0; }
.bubbles span {
  position: absolute; bottom: -60px; border-radius: 50%;
  background: radial-gradient(circle at 32% 30%, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.35) 55%, rgba(255, 255, 255, 0.08) 78%);
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.35);
  opacity: 0; will-change: transform, opacity;
  animation-name: bubbleRise;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}
@keyframes bubbleRise {
  0%   { transform: translate3d(0, 0, 0) scale(0.7); opacity: 0; }
  8%   { opacity: 0.7; }
  45%  { transform: translate3d(var(--dx, 24px), calc(var(--rise, 520px) * -0.45), 0) scale(1); opacity: 0.55; }
  80%  { opacity: 0.32; }
  100% { transform: translate3d(calc(var(--dx, 24px) * -0.6), calc(var(--rise, 520px) * -1), 0) scale(1.18); opacity: 0; }
}

/* ---------- Hero 产品界面示意 ---------- */
.mock {
  width: min(460px, 100%);
  background: #fff; color: var(--ink);
  border-radius: 26px; padding: 0; overflow: hidden; aspect-ratio: auto;
  box-shadow: 0 30px 60px rgba(6, 62, 66, 0.28);
}
.mock-bar { display: flex; align-items: center; gap: 6px; padding: 12px 16px; background: #f4faf9; border-bottom: 1px solid var(--line); }
.mock-bar .dot { width: 10px; height: 10px; border-radius: 50%; background: #d8e8e7; }
.mock-bar .dot:nth-child(1) { background: #ffb0b0; }
.mock-bar .dot:nth-child(2) { background: #ffd79a; }
.mock-bar .dot:nth-child(3) { background: #9ee2c6; }
.mock-title { margin-left: 10px; font-size: 12.5px; color: var(--slate); font-weight: 600; }
.mock-body { padding: 18px; }
.mock-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.mock-avatar { width: 40px; height: 40px; border-radius: 14px; background: var(--grad-brand); flex-shrink: 0; }
.mock-head strong { display: block; font-size: 15px; }
.mock-head span { font-size: 12px; color: var(--slate); }
.mock-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.mock-kpis .kpi { background: var(--tiffany-mist); border-radius: 14px; padding: 10px; text-align: center; }
.mock-kpis .kpi b { display: block; font-family: var(--font-num); font-size: 19px; color: var(--tiffany-dark); }
.mock-kpis .kpi span { font-size: 11.5px; color: var(--slate); }
.mp-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; font-size: 12.5px; }
.mp-row span { width: 68px; color: var(--slate); flex-shrink: 0; }
.mp-row i { display: block; height: 8px; border-radius: 999px; background: var(--tiffany-soft); position: relative; flex: 1; }
.mp-row i::after { content: ""; position: absolute; inset: 0 auto 0 0; width: var(--w, 50%); border-radius: 999px; background: var(--grad-brand); }
.mock-foot { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tag { font-size: 11.5px; padding: 4px 10px; border-radius: 999px; background: var(--tiffany-soft); color: var(--tiffany-dark); font-weight: 600; }
.tag--ai { background: #fff2e2; color: #b96a12; }

/* ---------- 预约演示（微信二维码） ---------- */
.booking { background: var(--tiffany-mist); padding: 84px 0; scroll-margin-top: var(--nav-h); }
.booking-card {
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 44px; align-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-l);
  padding: 44px; box-shadow: var(--shadow-card);
}
.booking-copy h2 { font-size: clamp(22px, 3vw, 30px); margin: 14px 0 12px; color: var(--tiffany-dark); }
.booking-copy p { color: var(--slate); font-size: 15.5px; }
.booking-steps { margin: 22px 0 0; }
.booking-steps li { display: flex; align-items: center; gap: 10px; color: var(--slate); font-size: 15px; margin-bottom: 12px; }
.booking-steps span {
  width: 24px; height: 24px; border-radius: 50%; flex-shrink: 0;
  background: var(--tiffany-soft); color: var(--tiffany-dark);
  font-size: 13px; font-weight: 700; display: flex; align-items: center; justify-content: center;
}
.booking-note { margin-top: 20px; font-size: 14px; }
.booking-note a { color: var(--tiffany); font-weight: 600; }
.booking-note a:hover { color: var(--tiffany-dark); text-decoration: underline; }
.booking-qr { text-align: center; }
.booking-qr img { width: 220px; height: 220px; margin: 0 auto; border-radius: 18px; border: 1px solid var(--line); }
.qr-placeholder {
  width: 220px; height: 220px; margin: 0 auto;
  border: 2px dashed rgba(10, 186, 181, 0.45); border-radius: 18px;
  background: var(--tiffany-mist); color: var(--tiffany-dark);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
  font-size: 14px; font-weight: 600;
}
.qr-placeholder svg { width: 46px; height: 46px; }
.qr-tip { margin-top: 16px; font-size: 13px; color: var(--slate); }
@media (max-width: 900px) { .booking-card { grid-template-columns: 1fr; padding: 28px; gap: 32px; } }
@media (max-width: 480px) { .booking { padding: 64px 0; } .qr-placeholder { width: 200px; height: 200px; } }

/* ---------- 404 ---------- */
.error-page { min-height: 62vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: 120px 24px 90px; }
.error-code { font-family: var(--font-num); font-size: clamp(72px, 14vw, 132px); font-weight: 800; line-height: 1; background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }
.error-page h1 { font-size: clamp(22px, 3.4vw, 30px); margin: 12px 0 10px; }
.error-page p { color: var(--slate); max-width: 460px; margin: 0 auto 28px; }

/* ---------- 图片/品牌区 ---------- */
.brand-band {
  background: var(--tiffany-mist); padding: 80px 0;
}
.brand-band .section-title { color: var(--tiffany-dark); }

/* ---------- 内容页通用 ---------- */
.prose { max-width: 760px; margin: 0 auto; }
.prose h2 { font-size: 26px; margin: 40px 0 16px; color: var(--tiffany-dark); }
.prose h3 { font-size: 19px; margin: 28px 0 12px; }
.prose p { color: var(--slate); margin-bottom: 16px; }
.prose ul { margin: 16px 0; }
.prose li { color: var(--slate); margin-bottom: 10px; padding-left: 22px; position: relative; }
.prose li::before { content: "•"; color: var(--tiffany); font-weight: 700; position: absolute; left: 4px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .modules-grid { grid-template-columns: repeat(3, 1fr); }
  .scene-grid { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
  .flow-item::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section-pad { padding: 72px 0; }
  .hero { padding: 80px 0 90px; }
  .hero-grid { flex-direction: column; text-align: center; }
  .hero-copy { display: flex; flex-direction: column; align-items: center; }
  .hero-visual { order: -1; width: 100%; }
  .hero-illustration { width: 200px; }
  .hero-stats { justify-content: center; gap: 28px; }
  .value-grid { grid-template-columns: 1fr; }
  .modules-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }

  /* 移动端导航 */
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: stretch; gap: 0;
    padding: 12px 24px 24px; box-shadow: 0 20px 30px rgba(36, 50, 63, 0.1);
    transform: translateY(-120%); transition: transform 0.3s ease; z-index: 99;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 16px; display: block; }
  .nav-links a::after { display: none; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}
@media (max-width: 480px) {
  .modules-grid { grid-template-columns: 1fr; }
  .scene-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}

/* =============================================================
   细节增强 & 动效
   ============================================================= */
::selection { background: rgba(10, 186, 181, 0.22); }
:focus-visible { outline: 3px solid rgba(10, 186, 181, 0.45); outline-offset: 3px; }

/* 导航滚动状态 */
.nav { transition: box-shadow 0.3s ease; }
.nav.scrolled { box-shadow: 0 8px 28px rgba(14, 124, 134, 0.1); }

/* 返回顶部 */
.to-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 90;
  width: 48px; height: 48px; border: none; border-radius: 50%;
  background: var(--tiffany); color: #fff; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 24px rgba(10, 186, 181, 0.35);
  opacity: 0; visibility: hidden; transform: translateY(14px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease, background 0.3s ease;
}
.to-top svg { width: 22px; height: 22px; }
.to-top.show { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--tiffany-dark); }

/* 滚动淡入（由 JS 自动添加 data-reveal） */
[data-reveal] {
  opacity: 0; transform: translateY(26px);
  transition: opacity 0.75s cubic-bezier(0.22, 0.61, 0.36, 1),
              transform 0.75s cubic-bezier(0.22, 0.61, 0.36, 1);
  transition-delay: var(--d, 0s);
  will-change: opacity, transform;
}
[data-reveal].in { opacity: 1; transform: none; }

/* 页头 banner 装饰光晕 */
.page-hero { overflow: hidden; }
.page-hero::before {
  content: ""; position: absolute; width: 480px; height: 480px;
  right: -120px; top: -160px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.22), transparent 62%);
  pointer-events: none;
}
.page-hero::after {
  content: ""; position: absolute; width: 420px; height: 420px;
  left: -140px; bottom: -200px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.16), transparent 62%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }

/* 首页 Hero 入场动画 */
@keyframes riseIn { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }
@keyframes floatY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.hero-badge { animation: riseIn 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) 0.05s both; }
.hero-title { animation: riseIn 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) 0.18s both; }
.hero-sub { animation: riseIn 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) 0.3s both; }
.hero-actions { animation: riseIn 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) 0.42s both; }
.hero-stats { animation: riseIn 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) 0.54s both; }
.hero-visual { animation: riseIn 0.9s cubic-bezier(0.22, 0.61, 0.36, 1) 0.25s both; }
.hero-illustration { animation: floatY 7s ease-in-out infinite 1.2s; }

/* 图标微交互 */
.value-icon svg, .m-icon svg { transition: transform 0.35s ease; }
.value-card:hover .value-icon svg { transform: scale(1.12); }
.module-card:hover .m-icon svg { transform: scale(1.14) rotate(-5deg); }
.scene-card .sc-icon { transition: transform 0.4s ease; }
.scene-card:hover .sc-icon { transform: scale(1.08) rotate(-6deg); }
.module-card h4 { transition: color 0.25s ease; }
.module-card:hover h4 { color: var(--tiffany-dark); }
.flow-node { transition: background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease; }
.flow-item:not(.active):hover .flow-node { background: var(--tiffany-soft); color: var(--tiffany-dark); box-shadow: 0 0 0 6px rgba(10, 186, 181, 0.12); }

/* CTA 光带扫过 */
.cta-band::after {
  content: ""; position: absolute; top: 0; left: -80%; width: 45%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.28), transparent);
  transform: skewX(-18deg); pointer-events: none;
}
.cta-band:hover::after { animation: sheen 0.9s ease; }
@keyframes sheen { to { left: 130%; } }

/* =============================================================
   可用性与响应式增强
   ============================================================= */
/* 页脚链接点击区域 ≥34px */
.footer-col a { display: flex; align-items: center; min-height: 34px; margin-bottom: 4px; padding: 4px 0; }
.footer-bottom a { display: inline-flex; align-items: center; min-height: 34px; padding: 0 6px; }
.footer-links { gap: 2px; }

/* 移动端菜单内的主 CTA（由 JS 注入） */
.nav-cta-mobile { display: none; }
@media (max-width: 768px) {
  .brand-text .t2 { display: none; }
  .brand-text .t1 { font-size: 15px; }
  .mock { width: min(380px, 100%); margin: 0 auto; }
  .nav-cta-mobile {
    display: block; margin-top: 16px; text-align: center; font-weight: 600;
    background: var(--tiffany); color: #fff !important; border-radius: 999px;
    border-bottom: none !important; padding: 14px 0; box-shadow: 0 10px 24px rgba(10, 186, 181, 0.3);
  }
}
@media (max-width: 480px) {
  .nav-cta { display: none; }
  .hero-stats { gap: 22px; }
  .hero-stat .num { font-size: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  .bubbles { display: none; }
  [data-reveal],
  .hero-badge, .hero-title, .hero-sub, .hero-actions, .hero-stats, .hero-visual, .hero-illustration {
    animation: none !important; opacity: 1 !important; transform: none !important; transition: none !important;
  }
}