/* =========================================================
   学府考研官网改版 - 设计系统
   品牌色提取自官方 logo：深红 #A00020 / 橙红 #E8502A
   ========================================================= */

:root {
  --brand: #A00020;
  --brand-dark: #7A0019;
  --brand-deep: #4A0010;
  --accent: #E8502A;
  --accent-soft: #FFE9E0;
  --ink: #261016;
  --ink-2: #5C4A4E;
  --ink-3: #8C7B7F;
  --paper: #FFFDFB;
  --paper-2: #FFF6F2;
  --line: #F0E2DE;
  --white: #fff;
  --grad: linear-gradient(100deg, var(--brand) 0%, var(--accent) 100%);
  --grad-soft: linear-gradient(100deg, #FFF3EE 0%, #FFE3D8 100%);
  --shadow-sm: 0 4px 14px rgba(160, 0, 32, .08);
  --shadow-md: 0 14px 34px rgba(160, 0, 32, .12);
  --shadow-lg: 0 24px 60px rgba(74, 0, 16, .16);
  --radius: 18px;
  --radius-sm: 12px;
  --container: 1180px;
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container {
  width: min(var(--container), 92%);
  margin: 0 auto;
}

.section { padding: 96px 0; }
.section-tint { background: linear-gradient(180deg, #FFF9F6 0%, var(--paper) 100%); }
.section-dark {
  background: radial-gradient(120% 160% at 80% -20%, #6E0017 0%, var(--brand-deep) 45%, #2E000B 100%);
  color: var(--white);
}

/* ---------- 通用标题 ---------- */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--brand);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 14px;
}
.kicker::before {
  content: "";
  width: 26px;
  height: 3px;
  border-radius: 3px;
  background: var(--grad);
}
.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-head .kicker { justify-content: center; }
.section-head .kicker::after {
  content: "";
  width: 26px;
  height: 3px;
  border-radius: 3px;
  background: var(--grad);
}
.section-title {
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 1px;
}
.section-sub {
  margin-top: 14px;
  color: var(--ink-2);
  font-size: 16px;
}
.section-more {
  display: inline-block;
  margin-top: 18px;
  font-size: 14.5px;
  font-weight: 800;
  color: var(--brand);
  padding: 9px 22px;
  border: 1.5px solid #F0B9A8;
  border-radius: 999px;
  transition: all .25s ease;
}
.section-more:hover { background: var(--grad); color: var(--white); border-color: transparent; }
.section-dark .kicker { color: #FFB7A4; }
.section-dark .section-sub { color: rgba(255,255,255,.72); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 1px;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.btn-primary {
  color: var(--white);
  background: var(--grad);
  box-shadow: 0 10px 24px rgba(200, 40, 30, .28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(200, 40, 30, .36); }
.btn-ghost {
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,.55);
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover { background: rgba(255,255,255,.18); transform: translateY(-2px); }
.btn-light { color: var(--brand); background: var(--white); box-shadow: 0 10px 26px rgba(0,0,0,.16); }
.btn-light:hover { transform: translateY(-2px); }
.btn-outline-light {
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,.7);
}
.btn-outline-light:hover { background: rgba(255,255,255,.14); transform: translateY(-2px); }
.btn-sm { padding: 10px 22px; font-size: 14px; }
.btn-lg { padding: 16px 36px; font-size: 17px; }
.btn-block { width: 100%; }

/* =========================================================
   顶部信息条
   ========================================================= */
.topbar {
  background: var(--brand-deep);
  color: rgba(255,255,255,.85);
  font-size: 13px;
  padding: 8px 0;
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.topbar-links { display: flex; align-items: center; gap: 22px; }
.topbar-links a { color: rgba(255,255,255,.92); transition: color .2s; }
.topbar-links a:hover { color: #FFB7A4; }
.topbar-phone { color: rgba(255,255,255,.68); }
.topbar-phone a { color: #FFD9CE; font-weight: 700; }

/* =========================================================
   导航
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 253, 251, .92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s ease, border-color .3s ease;
}
.site-header.scrolled {
  box-shadow: 0 6px 24px rgba(74, 0, 16, .08);
  border-bottom-color: var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 74px;
}
.brand-logo { height: 40px; }
.main-nav { display: flex; align-items: center; gap: 16px; }
.nav-link {
  position: relative;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
  padding: 8px 0;
  transition: color .2s;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 3px;
  border-radius: 3px;
  background: var(--grad);
  transition: width .25s ease;
}
.nav-link:hover, .nav-link.active { color: var(--brand); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: 14px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  border-radius: 10px;
  background: var(--paper-2);
}
.nav-toggle span {
  display: block;
  width: 20px; height: 2.5px;
  margin: 0 auto;
  border-radius: 2px;
  background: var(--brand);
  transition: transform .3s ease, opacity .3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* =========================================================
   Hero
   ========================================================= */
.hero {
  position: relative;
  background: linear-gradient(155deg, #5E0013 0%, var(--brand-dark) 38%, var(--brand) 100%);
  color: var(--white);
  overflow: hidden;
  padding: 92px 0 132px;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(10px);
}
.blob-a {
  width: 560px; height: 560px;
  right: -140px; top: -160px;
  background: radial-gradient(circle, rgba(232, 80, 42, .5), transparent 65%);
  animation: float 9s ease-in-out infinite;
}
.blob-b {
  width: 420px; height: 420px;
  left: -140px; bottom: -160px;
  background: radial-gradient(circle, rgba(255, 170, 120, .28), transparent 65%);
  animation: float 11s ease-in-out infinite reverse;
}
@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-22px) scale(1.04); }
}
.grid-lines {
  position: absolute;
  inset: 0;
  opacity: .07;
  background-image:
    linear-gradient(rgba(255,255,255,.8) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.8) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(70% 70% at 70% 30%, #000 30%, transparent 100%);
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: 48px;
}
.hero-title {
  font-size: clamp(40px, 5.6vw, 68px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: 3px;
  margin: 10px 0 22px;
}
.grad-text {
  background: linear-gradient(100deg, #FFB36B, #FFE6A6 45%, #FF8A5C);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  max-width: 560px;
  color: rgba(255,255,255,.82);
  font-size: 17px;
  line-height: 1.9;
}
.hero-answer {
  margin-top: 22px;
  max-width: 620px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.22);
  border-left: 4px solid #FF8A5C;
  border-radius: 14px;
  padding: 16px 20px;
  backdrop-filter: blur(8px);
}
.hero-answer-label {
  display: block;
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 2px;
  color: #FFD9A8;
  margin-bottom: 6px;
}
.hero-answer p {
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(255,255,255,.92);
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 34px; }
.hero-trust {
  display: flex;
  gap: 34px;
  margin-top: 46px;
  padding-top: 26px;
  border-top: 1px solid rgba(255,255,255,.16);
}
.hero-trust li { display: flex; flex-direction: column; }
.hero-trust strong {
  font-size: 26px;
  font-weight: 800;
  color: #FFC9A8;
}
.hero-trust span { font-size: 13px; color: rgba(255,255,255,.66); }

/* Hero 视觉卡片 */
.hero-visual { position: relative; height: 460px; }
.study-card {
  position: absolute;
  width: 300px;
  padding: 26px 26px 22px;
  border-radius: 22px;
  background: rgba(255,255,255,.97);
  color: var(--ink);
  box-shadow: 0 30px 60px rgba(60, 0, 12, .4);
}
.card-front { left: 6%; top: 34px; transform: rotate(-4deg); animation: cardFloat 6s ease-in-out infinite; }
.card-back { right: 2%; bottom: 36px; transform: rotate(4deg); animation: cardFloat 7s ease-in-out infinite reverse; }
@keyframes cardFloat {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -14px; }
}
.card-flag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--white);
  background: var(--grad);
  padding: 4px 12px;
  border-radius: 999px;
}
.card-flag-orange { background: linear-gradient(100deg, #E8502A, #FF8A4C); }
.card-title { font-size: 19px; font-weight: 800; margin: 14px 0 6px; }
.card-meta { font-size: 13px; color: var(--ink-2); }
.card-progress {
  height: 8px;
  border-radius: 8px;
  background: #F4E5E0;
  margin: 16px 0 10px;
  overflow: hidden;
}
.card-progress i {
  display: block;
  height: 100%;
  border-radius: 8px;
  background: var(--grad);
}
.card-note { font-size: 12px; color: var(--ink-3); }
.card-back ul { margin-top: 12px; }
.card-back li {
  position: relative;
  font-size: 13.5px;
  color: var(--ink-2);
  padding: 7px 0 7px 24px;
}
.card-back li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--brand);
  font-weight: 800;
}
.hero-badge {
  position: absolute;
  left: 2%; bottom: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 104px;
  padding: 14px 10px;
  border-radius: 18px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.28);
  backdrop-filter: blur(10px);
  animation: float 8s ease-in-out infinite;
}
.badge-num { font-size: 26px; font-weight: 900; color: #FFD9A8; }
.badge-text { font-size: 11.5px; color: rgba(255,255,255,.8); }
.hero-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px dashed rgba(255,255,255,.25);
  animation: spin 22s linear infinite;
}
.ring-1 { width: 150px; height: 150px; right: 12%; top: 0; }
.ring-2 { width: 76px; height: 76px; left: 30%; top: 8px; animation-duration: 14s; }
@keyframes spin { to { transform: rotate(360deg); } }

.hero-wave {
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 74px;
  background: var(--paper);
  clip-path: path("M0,74 L0,46 C240,10 480,10 720,38 C900,58 1080,58 1440,30 L1440,74 Z");
}

/* =========================================================
   数据条
   ========================================================= */
.stats {
  position: relative;
  z-index: 2;
  margin-top: -40px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.stat-item {
  background: var(--white);
  padding: 30px 20px;
  text-align: center;
}
.stat-num {
  font-size: clamp(30px, 3.4vw, 44px);
  font-weight: 900;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label { margin-top: 6px; font-size: 14px; color: var(--ink-2); }
.stats-note {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--ink-3);
  text-align: center;
  line-height: 1.8;
}

/* =========================================================
   课程卡片
   ========================================================= */
.course-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.course-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 30px 28px;
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.course-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}
.course-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.course-card:hover::before { transform: scaleX(1); }
.course-icon {
  width: 64px; height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}
.course-icon svg { width: 34px; height: 34px; fill: var(--white); }
.icon-politics { background: var(--grad); box-shadow: 0 10px 22px rgba(200,40,30,.3); }
.icon-english { background: linear-gradient(135deg, #2F6FE4, #5FA8FF); box-shadow: 0 10px 22px rgba(47,111,228,.3); }
.icon-math { background: linear-gradient(135deg, #0F9D6E, #34D3A0); box-shadow: 0 10px 22px rgba(15,157,110,.3); }
.icon-major { background: linear-gradient(135deg, #7A4DD3, #B18AFF); box-shadow: 0 10px 22px rgba(122,77,211,.3); }
.icon-mba { background: linear-gradient(135deg, #D98E04, #FFC24D); box-shadow: 0 10px 22px rgba(217,142,4,.3); }
.icon-retest { background: linear-gradient(135deg, #D0425F, #FF7A97); box-shadow: 0 10px 22px rgba(208,66,95,.3); }
.course-card h3 { font-size: 21px; font-weight: 800; margin-bottom: 10px; }
.course-card p { font-size: 14px; color: var(--ink-2); }
.course-tags {
  display: inline-block;
  margin: 16px 0 12px;
  font-size: 12px;
  color: var(--brand);
  background: var(--paper-2);
  border-radius: 999px;
  padding: 5px 14px;
}
.card-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--brand);
  transition: gap .2s;
}
.card-link:hover { text-decoration: underline; }

/* =========================================================
   班型产品（按班型选产品）
   ========================================================= */
.class-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 44px;
}
.class-tab {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-2);
  padding: 11px 28px;
  border-radius: 999px;
  border: 1.5px solid var(--line);
  background: var(--white);
  transition: all .25s ease;
}
.class-tab:hover { color: var(--brand); border-color: #F0B9A8; }
.class-tab.active {
  color: var(--white);
  background: var(--grad);
  border-color: transparent;
  box-shadow: 0 8px 20px rgba(200, 40, 30, .25);
}
.class-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.class-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px 24px;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease, opacity .3s ease;
  position: relative;
  overflow: hidden;
}
.class-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}
.class-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.class-card:hover::before { transform: scaleX(1); }
.class-card-hot {
  background: linear-gradient(170deg, #FFF4EC 0%, #FFFFFF 60%);
  border-color: #F7D9CD;
}
.class-card.hide { display: none; }
.class-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.class-head h3 { font-size: 22px; font-weight: 900; letter-spacing: 1px; }
.class-en {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--ink-3);
  margin-top: 4px;
}
.class-badge {
  flex-shrink: 0;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--brand);
  background: var(--paper-2);
  border: 1px solid #F3D8CF;
  padding: 5px 12px;
  border-radius: 999px;
  max-width: 46%;
  text-align: center;
  line-height: 1.5;
}
.class-desc {
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.9;
  margin-bottom: 16px;
}
.class-points { margin-bottom: 18px; }
.class-points li {
  position: relative;
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.75;
  padding: 4px 0 4px 24px;
}
.class-points li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--brand);
  font-weight: 800;
}
.class-foot {
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-top: 1px dashed var(--line);
  padding-top: 16px;
  margin-top: auto;
}
.class-price {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  font-size: 13px;
  color: var(--ink-3);
}
.cp-label {
  font-size: 12.5px;
  color: var(--ink-3);
  line-height: 1.4;
}
.class-price strong {
  font-size: 22px;
  font-weight: 900;
  color: var(--brand);
  line-height: 1.2;
}
.price-f2f {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink-2);
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 12px;
  margin-left: 0;
  white-space: nowrap;
}
.class-foot-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
}
.class-detail-link {
  flex: 1;
  text-align: center;
  font-size: 13.5px;
  font-weight: 800;
  color: var(--brand);
  border: 1.5px solid #F0B9A8;
  border-radius: 999px;
  padding: 10px 8px;
  transition: all .25s ease;
  white-space: nowrap;
}
.class-detail-link:hover { background: var(--grad); color: var(--white); border-color: transparent; }
.class-foot-actions .btn { flex: 1; padding: 10px 8px; }
.class-note {
  margin-top: 12px;
  font-size: 12px;
  color: var(--ink-3);
  background: #FBF4F1;
  border-radius: 8px;
  padding: 7px 12px;
}
.subject-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 44px;
  padding: 22px 26px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.subject-strip span {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-2);
  background: var(--paper-2);
  border-radius: 999px;
  padding: 6px 16px;
}
.subject-strip .subject-label {
  color: var(--white);
  background: var(--grad);
  font-weight: 800;
}

/* =========================================================
   热门课程
   ========================================================= */
.online-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.online-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease;
  display: flex;
  flex-direction: column;
}
.online-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.online-card-hot { border-color: transparent; background: linear-gradient(160deg, #FFF4EC, #FFF); }
.online-top { padding: 30px 28px 22px; flex: 1; }
.online-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--white);
  background: var(--grad);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.online-badge-orange { background: linear-gradient(100deg, #E8502A, #FF8A4C); }
.online-top h3 { font-size: 19px; font-weight: 800; line-height: 1.5; }
.online-hours { font-size: 13px; color: var(--ink-3); margin-top: 8px; }
.online-teachers { font-size: 12.5px; color: var(--ink-2); margin-top: 6px; font-weight: 600; }
.online-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 18px 28px 22px;
  border-top: 1px dashed var(--line);
}
.online-price strong {
  font-size: 26px;
  font-weight: 900;
  color: var(--brand);
}
.online-price span { font-size: 13px; color: var(--ink-3); }
.online-likes { font-size: 12px; color: var(--ink-3); }
.online-note {
  margin-top: 18px;
  font-size: 12.5px;
  color: var(--ink-3);
  text-align: center;
}

/* =========================================================
   名师团队
   ========================================================= */
.teacher-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 44px;
}
.tab-btn {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-2);
  padding: 11px 26px;
  border-radius: 999px;
  border: 1.5px solid var(--line);
  background: var(--white);
  transition: all .25s ease;
}
.tab-btn:hover { color: var(--brand); border-color: #F0B9A8; }
.tab-btn.active {
  color: var(--white);
  background: var(--grad);
  border-color: transparent;
  box-shadow: 0 8px 20px rgba(200,40,30,.25);
}
.teacher-panel { display: none; }
.teacher-panel.active { display: block; animation: fadeUp .45s ease; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.teacher-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.teacher-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 24px;
  text-align: center;
  transition: transform .3s ease, box-shadow .3s ease;
}
.teacher-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.teacher-avatar {
  width: 78px; height: 78px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  font-weight: 800;
  color: var(--white);
}
.av-red { background: linear-gradient(135deg, var(--brand), var(--accent)); }
.av-blue { background: linear-gradient(135deg, #2F6FE4, #5FA8FF); }
.av-green { background: linear-gradient(135deg, #0F9D6E, #34D3A0); }
.av-purple { background: linear-gradient(135deg, #7A4DD3, #B18AFF); }
.teacher-photo {
  position: relative;
  width: 100%;
  max-width: 172px;
  margin: 0 auto 16px;
  aspect-ratio: 4 / 5;
  border-radius: 14px;
  overflow: hidden;
  background: var(--paper-2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.teacher-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.teacher-photo-link { display: block; }
.teacher-card h3 a { color: var(--ink); }
.teacher-card h3 a:hover { color: var(--brand); }
.section-more {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
}
.section-more:hover { color: var(--brand); }
.teacher-card h3 { font-size: 19px; font-weight: 800; }
.teacher-subject {
  font-size: 12.5px;
  color: var(--brand);
  background: var(--paper-2);
  display: inline-block;
  padding: 3px 12px;
  border-radius: 999px;
  margin: 8px 0 12px;
}
.teacher-bio { font-size: 13.5px; color: var(--ink-2); line-height: 1.8; }

/* =========================================================
   教学特色
   ========================================================= */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}
.feature-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform .3s ease, background .3s ease, border-color .3s ease;
}
.feature-card:hover {
  transform: translateY(-6px);
  background: rgba(255,255,255,.1);
  border-color: rgba(255,183,164,.5);
}
.feature-icon {
  font-size: 20px;
  font-weight: 900;
  font-style: italic;
  color: #FF9E7A;
  display: block;
  margin-bottom: 14px;
}
.feature-card h3 { font-size: 18px; font-weight: 800; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: rgba(255,255,255,.72); line-height: 1.85; }
.feature-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 13px;
  font-weight: 800;
  color: #FFB7A4;
  transition: color .2s;
}
.feature-link:hover { color: #FFD9A8; }
.feature-evidence {
  list-style: none;
  margin: 14px 0 0;
  text-align: left;
}
.feature-evidence li {
  position: relative;
  padding-left: 20px;
  font-size: 13px;
  color: rgba(255,255,255,.78);
  line-height: 1.8;
}
.feature-evidence li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #FFB7A4;
  font-weight: 800;
}
.feature-stats {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  margin-bottom: 44px;
}
.feature-stats span {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-width: 0;
  text-align: center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 10px;
  font-size: 13px;
  color: var(--ink-2);
}
.feature-stats b {
  font-size: 21px;
  font-weight: 900;
  color: var(--brand);
}
@media (max-width: 1199px) {
  .feature-stats { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 720px) {
  .feature-stats { grid-template-columns: repeat(2, 1fr); }
}
.evidence-block {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  padding: 34px;
  margin-bottom: 44px;
}
.evidence-title {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 1px;
  text-align: center;
  margin-bottom: 22px;
}
.evidence-table-wrap { overflow-x: auto; }
.feature-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.feature-table th {
  background: var(--grad);
  color: var(--white);
  font-size: 14px;
  font-weight: 800;
  padding: 14px 18px;
  text-align: left;
  white-space: nowrap;
}
.feature-table td {
  font-size: 13.5px;
  color: var(--ink-2);
  padding: 12px 18px;
  border-top: 1px solid var(--line);
  line-height: 1.7;
}
.feature-table tr:nth-child(even) td { background: #FFF9F6; }
.evidence-note {
  margin-top: 18px;
  font-size: 12.5px;
  color: rgba(255,255,255,.6);
  line-height: 1.9;
  text-align: center;
}
.flow {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  padding: 34px;
  text-align: center;
}
.flow-title { font-size: 17px; font-weight: 800; margin-bottom: 22px; letter-spacing: 2px; }
.flow-steps {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 26px;
}
.flow-steps li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
  color: rgba(255,255,255,.9);
}
.flow-steps li span {
  width: 34px; height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grad);
  font-size: 14px;
  font-weight: 800;
  color: var(--white);
}

/* =========================================================
   自研教材证据块
   ========================================================= */
.book-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 36px;
}
.book-stats span {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 168px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 20px;
  font-size: 13px;
  color: var(--ink-2);
}
.book-stats b {
  font-size: 21px;
  font-weight: 900;
  color: var(--brand);
}
.book-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}
.book-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px;
  text-align: center;
  transition: transform .25s ease, box-shadow .25s ease;
}
.book-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.book-item img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  background: #fff;
}
.book-item figcaption {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.5;
  margin-top: 8px;
}
.book-item small {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-3);
  margin-top: 2px;
}
.book-note {
  margin-top: 26px;
  font-size: 12.5px;
  color: var(--ink-3);
  text-align: center;
}

/* =========================================================
   学员口碑
   ========================================================= */
.story-slider { max-width: 860px; margin: 0 auto; }
.story-track {
  display: grid;
  border-radius: var(--radius);
}
.story-card {
  grid-area: 1 / 1;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(12px) scale(.985);
  transition: opacity .5s ease, transform .5s ease, visibility .5s;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px 44px 34px;
  box-shadow: var(--shadow-sm);
}
.story-card.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: none;
}
.story-quote {
  font-family: Georgia, serif;
  font-size: 72px;
  line-height: 1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  height: 48px;
}
@supports not ((-webkit-background-clip: text) or (background-clip: text)) {
  .story-quote { color: var(--brand); }
}
.story-card blockquote {
  font-size: 17px;
  color: var(--ink);
  line-height: 2;
  margin: 10px 0 26px;
}
.story-card figcaption {
  display: flex;
  align-items: center;
  gap: 14px;
}
.story-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 800;
  font-size: 18px;
  flex-shrink: 0;
}
.story-card figcaption strong { font-size: 15px; display: block; }
.story-card figcaption small { font-size: 12.5px; color: var(--ink-3); }
.story-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-top: 26px;
}
.story-btn {
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1.5px solid var(--line);
  background: var(--white);
  font-size: 22px;
  color: var(--brand);
  transition: all .25s;
}
.story-btn:hover { background: var(--grad); color: var(--white); border-color: transparent; }
.story-dots { display: flex; gap: 8px; }
.story-dots span {
  width: 8px; height: 8px;
  border-radius: 999px;
  background: #E5CFC8;
  transition: all .3s;
  cursor: pointer;
}
.story-dots span.active { width: 26px; background: var(--grad); }
.story-note {
  max-width: 860px;
  margin: 20px auto 0;
  font-size: 12.5px;
  color: var(--ink-3);
  text-align: center;
  line-height: 1.8;
}

/* =========================================================
   全国校区
   ========================================================= */
.campus-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.campus-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px 24px;
  transition: transform .3s ease, box-shadow .3s ease;
}
.campus-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.campus-card::after {
  content: "";
  position: absolute;
  right: 22px; top: 22px;
  width: 46px; height: 46px;
  border-radius: 12px;
  background: var(--grad-soft);
  opacity: .8;
}
.campus-card h3 { font-size: 19px; font-weight: 800; margin-bottom: 12px; }
.campus-card p { font-size: 13.5px; color: var(--ink-2); line-height: 1.9; }
.campus-card p + p { margin-top: 4px; }
.campus-pin { font-style: normal; }
.campus-more { text-align: center; margin-top: 34px; color: var(--ink-2); font-size: 15px; }
.campus-more a { color: var(--brand); font-weight: 800; }

/* 集训校区大卡 */
.campus-feature {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 36px;
  align-items: center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 56px;
  box-shadow: var(--shadow-sm);
}
.campus-main-img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  transition: opacity .2s ease;
}
.campus-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 10px;
}
.campus-thumbs img {
  width: 100%;
  height: 72px;
  object-fit: cover;
  border-radius: 8px;
  cursor: pointer;
  transition: transform .25s ease;
}
.campus-thumbs img:hover { transform: scale(1.04); }
.campus-thumbs img.thumb-active {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.campus-flag {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  color: var(--white);
  background: var(--grad);
  border-radius: 999px;
  padding: 5px 14px;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.campus-feature-info h3 {
  font-size: 26px;
  font-weight: 900;
  margin-bottom: 14px;
}
.campus-feature-info > p { font-size: 14.5px; color: var(--ink-2); line-height: 2; }
.campus-addr {
  margin-top: 10px;
  font-weight: 700;
  color: var(--brand);
}
.campus-feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 22px;
}
.campus-feature-tags span {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink-2);
  background: var(--paper-2);
  border: 1px solid #F3D8CF;
  padding: 6px 14px;
  border-radius: 999px;
}
.campus-block-head { margin-bottom: 24px; }
.campus-block-head h3 {
  font-size: 22px;
  font-weight: 900;
}
.campus-block-head p { font-size: 14px; color: var(--ink-2); margin-top: 6px; }

/* =========================================================
   学府App
   ========================================================= */
.app-wrap {
  display: grid;
  grid-template-columns: 1fr .8fr;
  align-items: center;
  gap: 40px;
}
.app-features { margin: 26px 0 20px; }
.app-features li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 15px;
  color: var(--ink-2);
  padding: 9px 0;
}
.app-features li span {
  flex-shrink: 0;
  min-width: 84px;
  text-align: center;
  font-weight: 800;
  color: var(--white);
  background: var(--grad);
  border-radius: 999px;
  padding: 3px 12px;
  font-size: 13px;
}
.app-support { font-size: 13px; color: var(--ink-3); }

.app-phone { position: relative; display: flex; justify-content: center; }
.phone-screen {
  position: relative;
  width: 264px;
  height: 520px;
  border-radius: 40px;
  background: linear-gradient(170deg, #2E000B, var(--brand-deep) 55%, var(--brand));
  border: 8px solid #1C0008;
  box-shadow: 0 40px 80px rgba(74,0,16,.35);
  overflow: hidden;
  padding: 48px 22px 26px;
  color: var(--white);
}
.phone-notch {
  position: absolute;
  top: 12px; left: 50%;
  transform: translateX(-50%);
  width: 90px; height: 22px;
  background: #1C0008;
  border-radius: 999px;
}
.phone-logo { font-size: 20px; font-weight: 900; letter-spacing: 2px; }
.phone-sub { font-size: 12px; color: rgba(255,255,255,.65); margin-bottom: 18px; }
.phone-live {
  background: linear-gradient(100deg, #E8502A, #FF8A4C);
  border-radius: 14px;
  padding: 14px 16px;
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 1px;
}
.phone-row {
  display: flex;
  gap: 8px;
  margin: 12px 0;
}
.phone-row i {
  flex: 1;
  height: 74px;
  border-radius: 12px;
  background: rgba(255,255,255,.1);
}
.phone-word, .phone-quiz {
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(255,255,255,.1);
  margin-bottom: 10px;
}
.phone-ring {
  position: absolute;
  width: 320px; height: 320px;
  border-radius: 50%;
  border: 2px dashed rgba(200,40,30,.25);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: spin 26s linear infinite;
  z-index: -1;
}

/* =========================================================
   关于学府
   ========================================================= */
.about-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 48px;
  align-items: start;
}
.about-story p { font-size: 15.5px; color: var(--ink-2); line-height: 2.05; margin-bottom: 16px; }
.about-points { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.about-points span {
  font-size: 13px;
  font-weight: 700;
  color: var(--brand);
  background: var(--paper-2);
  border: 1px solid #F3D8CF;
  padding: 7px 16px;
  border-radius: 999px;
}
.timeline {
  position: relative;
  padding-left: 30px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 8px; top: 6px; bottom: 6px;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--brand), var(--accent), #FFC9A8);
}
.tl-item { position: relative; padding: 12px 0 12px 8px; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -27px; top: 22px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--brand);
}
.tl-year {
  font-size: 17px;
  font-weight: 900;
  color: var(--brand);
}
.tl-item p { font-size: 14px; color: var(--ink-2); line-height: 1.8; }

/* =========================================================
   学府荣誉
   ========================================================= */
.honor-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.honor-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 20px 18px;
  text-align: center;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.honor-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
  border-color: #F0B9A8;
}
.honor-year {
  display: inline-block;
  font-size: 12px;
  font-weight: 900;
  color: var(--white);
  background: var(--grad);
  border-radius: 999px;
  padding: 3px 14px;
  letter-spacing: 1px;
  margin-bottom: 10px;
}
.honor-item p {
  font-size: 14px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.6;
  margin-bottom: 6px;
}
.honor-item small {
  display: block;
  font-size: 12px;
  color: var(--ink-3);
  margin-bottom: 8px;
}
.honor-item .honor-link {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  border-bottom: 1px dashed rgba(232, 80, 42, .45);
  padding-bottom: 1px;
  transition: color .2s ease, border-color .2s ease;
}
.honor-item .honor-link:hover {
  color: var(--brand);
  border-bottom-color: var(--brand);
}
.honor-item .honor-link.pending {
  color: var(--ink-3);
  font-weight: 500;
  border-bottom: none;
  cursor: default;
}
.honor-note {
  margin-top: 24px;
  font-size: 12.5px;
  color: var(--ink-3);
  text-align: center;
  line-height: 1.8;
}

/* =========================================================
   常见问题（GEO 问答区）
   ========================================================= */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  max-width: 980px;
  margin: 0 auto;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: box-shadow .3s ease, border-color .3s ease;
}
.faq-item:hover { box-shadow: var(--shadow-sm); border-color: #F3CDBE; }
.faq-item details summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
  padding: 20px 52px 20px 22px;
  line-height: 1.6;
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 20px; top: 50%;
  transform: translateY(-50%);
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--paper-2);
  color: var(--brand);
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .25s ease, background .25s ease, color .25s ease;
}
.faq-item details[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
  background: var(--grad);
  color: var(--white);
}
.faq-item details p {
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.95;
  padding: 16px 22px 20px;
  border-top: 1px dashed var(--line);
}

/* =========================================================
   CTA
   ========================================================= */
.cta {
  position: relative;
  background: var(--grad);
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute;
  width: 420px; height: 420px;
  border-radius: 50%;
  right: -120px; top: -160px;
  background: rgba(255,255,255,.14);
}
.cta::after {
  content: "";
  position: absolute;
  width: 300px; height: 300px;
  border-radius: 50%;
  left: -100px; bottom: -140px;
  background: rgba(255,255,255,.1);
}
.cta-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 56px 0;
  flex-wrap: wrap;
}
.cta-copy h2 {
  color: var(--white);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 900;
  letter-spacing: 1px;
}
.cta-copy p { color: rgba(255,255,255,.85); margin-top: 10px; font-size: 15.5px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* =========================================================
   页脚
   ========================================================= */
.site-footer { background: #20000A; color: rgba(255,255,255,.72); padding-top: 64px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 44px;
}
.footer-logo {
  height: 42px;
  margin-bottom: 16px;
  background: rgba(255,255,255,.92);
  border-radius: 6px;
  padding: 4px 10px;
}
.footer-brand p { font-size: 14px; line-height: 2; max-width: 320px; }
.footer-hotline { margin-top: 14px; font-size: 14px; }
.footer-hotline a { color: #FFB7A4; font-size: 18px; font-weight: 800; }
.footer-col h4 {
  color: var(--white);
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 18px;
}
.footer-col a, .footer-col p {
  display: block;
  font-size: 14px;
  line-height: 2.3;
  transition: color .2s;
}
.footer-col a:hover { color: #FFB7A4; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0 26px;
  font-size: 12.5px;
  color: rgba(255,255,255,.45);
}

/* =========================================================
   弹窗
   ========================================================= */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal.open { display: flex; }
.modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(30, 0, 8, .55);
  backdrop-filter: blur(4px);
  animation: fadeIn .3s ease;
}
.modal-box {
  position: relative;
  width: min(480px, 100%);
  background: var(--white);
  border-radius: 24px;
  padding: 40px 36px 32px;
  box-shadow: var(--shadow-lg);
  animation: popIn .35s ease;
  max-height: 92vh;
  overflow-y: auto;
}
@keyframes fadeIn { from { opacity: 0; } }
@keyframes popIn { from { opacity: 0; transform: translateY(24px) scale(.97); } }
.modal-close {
  position: absolute;
  top: 14px; right: 14px;
  width: 36px; height: 36px;
  border-radius: 50%;
  font-size: 22px;
  color: var(--ink-3);
  background: var(--paper-2);
  transition: all .2s;
}
.modal-close:hover { background: var(--grad); color: var(--white); }
.modal-box h3 { font-size: 22px; font-weight: 800; margin-bottom: 22px; }
.modal-box label { display: block; margin-bottom: 16px; }
.modal-box label span { display: block; font-size: 13.5px; font-weight: 700; margin-bottom: 7px; color: var(--ink-2); }
.modal-box input {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  background: #FFFCFA;
  transition: border-color .2s, box-shadow .2s;
}
.modal-box input:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(160,0,32,.1);
}
.modal-box input.err { border-color: #E22; background: #FFF4F4; }
.form-note { font-size: 12px; color: var(--ink-3); text-align: center; margin-top: 14px; }
.form-success { text-align: center; padding: 30px 0 10px; }
.success-icon {
  width: 72px; height: 72px;
  margin: 0 auto 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
  font-weight: 900;
  color: var(--white);
  background: linear-gradient(135deg, #0F9D6E, #34D3A0);
  box-shadow: 0 14px 30px rgba(15,157,110,.3);
}
.form-success h3 { margin-bottom: 10px; }
.form-success p { color: var(--ink-2); font-size: 14.5px; }

/* 回到顶部 */
.to-top {
  position: fixed;
  right: 26px; bottom: 30px;
  z-index: 90;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--grad);
  color: var(--white);
  font-size: 20px;
  font-weight: 800;
  box-shadow: 0 12px 28px rgba(200,40,30,.35);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity .3s ease, transform .3s ease;
}
.to-top.show { opacity: 1; transform: none; pointer-events: auto; }

/* =========================================================
   子页面（问答 / 资讯）
   ========================================================= */
.page-hero {
  background: linear-gradient(150deg, #5E0013 0%, var(--brand-dark) 45%, var(--brand) 100%);
  color: var(--white);
  padding: 56px 0 64px;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  width: 420px; height: 420px;
  border-radius: 50%;
  right: -120px; top: -160px;
  background: radial-gradient(circle, rgba(232, 80, 42, .45), transparent 65%);
}
.page-hero .container { position: relative; z-index: 1; }
.breadcrumb {
  font-size: 13px;
  color: rgba(255,255,255,.66);
  margin-bottom: 18px;
}
.breadcrumb a { color: rgba(255,255,255,.82); }
.breadcrumb a:hover { color: #FFB7A4; }
.page-hero h1 {
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 900;
  line-height: 1.4;
  letter-spacing: 1px;
  max-width: 820px;
}
.page-lead {
  margin-top: 16px;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255,255,255,.85);
  max-width: 780px;
}
.page-meta {
  margin-top: 18px;
  font-size: 13px;
  color: rgba(255,255,255,.6);
}
.page-body {
  padding: 48px 0 72px;
  max-width: 880px;
}
.page-body h2 {
  font-size: 22px;
  font-weight: 900;
  margin: 40px 0 16px;
  padding-left: 14px;
  border-left: 4px solid var(--brand);
  line-height: 1.4;
}
.page-body h3 { font-size: 17px; font-weight: 800; margin: 24px 0 10px; }
.page-body p { font-size: 15px; color: var(--ink-2); line-height: 2; margin-bottom: 14px; }
.answer-card {
  background: linear-gradient(170deg, #FFF6F2 0%, #FFFFFF 60%);
  border: 1px solid #F3D8CF;
  border-radius: var(--radius);
  padding: 26px 28px;
  margin-bottom: 10px;
}
.answer-card .ac-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  color: var(--white);
  background: var(--grad);
  border-radius: 999px;
  padding: 4px 14px;
  margin-bottom: 12px;
}
.answer-card p { font-size: 15px; line-height: 2; color: var(--ink); margin: 0; }
.ac-elements {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 16px;
}
.ac-elements span {
  font-size: 12px;
  color: var(--ink-2);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  line-height: 1.6;
}
.ac-elements b { color: var(--brand); display: block; margin-bottom: 2px; }
.page-table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0 24px;
  font-size: 14px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.page-table th {
  background: var(--brand);
  color: var(--white);
  font-weight: 800;
  padding: 12px 14px;
  text-align: left;
}
.page-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
  line-height: 1.7;
  vertical-align: top;
}
.page-table tr:nth-child(even) td { background: #FFF9F6; }
.page-note {
  font-size: 12.5px;
  color: var(--ink-3);
  background: #FBF4F1;
  border-radius: 8px;
  padding: 10px 14px;
  margin: 20px 0;
  line-height: 1.8;
}
.qa-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.qa-link {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  transition: all .25s ease;
}
.qa-link:hover { color: var(--brand); border-color: #F0B9A8; box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.qa-link .qa-tag {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 800;
  color: var(--brand);
  background: var(--paper-2);
  border-radius: 999px;
  padding: 3px 10px;
}
.qa-link em {
  font-style: normal;
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-3);
  margin-left: auto;
  white-space: nowrap;
}
.qa-link.qa-soon { color: var(--ink-3); cursor: default; background: #FBF9F7; }
.qa-link.qa-soon:hover { transform: none; box-shadow: none; border-color: var(--line); }
.qa-link.qa-soon .qa-tag { color: var(--ink-3); background: #F0E9E5; }

/* =========================================================
   名师个人页
   ========================================================= */
.teacher-head {
  display: flex;
  gap: 36px;
  align-items: flex-start;
  margin-top: 28px;
}
.teacher-head-photo {
  flex: 0 0 240px;
  aspect-ratio: 4 / 5;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  background: var(--white);
}
.teacher-head-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.teacher-head-info { flex: 1; }
.teacher-head-info h1 { font-size: 34px; margin: 10px 0 6px; }
.teacher-head-info .t-subject {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--brand);
  background: var(--accent-soft);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.t-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 6px; }
.t-tag {
  font-size: 12px;
  color: var(--ink-2);
  background: var(--paper-2);
  border: 1px solid var(--line);
  padding: 4px 12px;
  border-radius: 999px;
}
.teacher-mini-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 8px; }
.teacher-mini-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
  transition: transform .25s ease, box-shadow .25s ease;
}
.teacher-mini-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.teacher-mini-card img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 10px;
}
.teacher-mini-card strong { font-size: 14px; }
.teacher-mini-card small { display: block; font-size: 12px; color: var(--ink-3); margin-top: 2px; }
@media (max-width: 900px) {
  .teacher-head { flex-direction: column; align-items: center; text-align: center; }
  .teacher-head-photo { flex-basis: auto; width: 220px; }
  .teacher-mini-grid { grid-template-columns: repeat(2, 1fr); }
}
.col-head {
  font-size: 17px;
  font-weight: 900;
  margin: 34px 0 14px;
  color: var(--brand);
}
.page-cta { margin-top: 44px; }
.article-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 13px;
  color: var(--ink-3);
  margin-bottom: 8px;
}
.article-meta-row b { color: var(--brand); }
.toc {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  margin: 24px 0;
}
.toc p { font-weight: 800; margin-bottom: 8px; font-size: 14px; }
.toc a {
  display: inline-block;
  font-size: 13.5px;
  color: var(--ink-2);
  margin: 3px 14px 3px 0;
}
.toc a:hover { color: var(--brand); }

/* =========================================================
   首页备考攻略精选
   ========================================================= */
.gonglve-strip {
  background: linear-gradient(120deg, var(--brand-dark) 0%, var(--brand) 60%, var(--accent) 120%);
  padding: 44px 0;
}
.gonglve-strip-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}
.gonglve-strip-text .kicker { color: #FFD9A8; margin-bottom: 8px; }
.gonglve-strip-text h2 {
  color: var(--white);
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 900;
  letter-spacing: 1px;
  line-height: 1.4;
}
.gonglve-strip-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.gonglve-strip-links a {
  font-size: 14px;
  font-weight: 800;
  color: var(--brand-dark);
  background: var(--white);
  border-radius: 999px;
  padding: 10px 20px;
  transition: transform .25s ease, box-shadow .25s ease;
  white-space: nowrap;
}
.gonglve-strip-links a:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0,0,0,.18); }
.gonglve-strip-links .gonglve-all {
  color: var(--white);
  background: rgba(255,255,255,.14);
  border: 1.5px solid rgba(255,255,255,.55);
}

/* =========================================================
   滚动显现动画
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.in { opacity: 1; transform: none; }
.reveal.in.d1 { transition-delay: .08s; }
.reveal.in.d2 { transition-delay: .16s; }
.reveal.in.d3 { transition-delay: .24s; }
.reveal.in.d4 { transition-delay: .32s; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 1080px) {
  .main-nav { gap: 20px; }
  .course-grid, .online-grid, .feature-grid, .campus-grid { grid-template-columns: repeat(2, 1fr); }
  .class-grid { grid-template-columns: repeat(2, 1fr); }
  .teacher-grid { grid-template-columns: repeat(2, 1fr); }
  .faq-grid { grid-template-columns: 1fr; }
  .book-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 900px) {
  .section { padding: 72px 0; }
  .hero { padding: 64px 0 120px; }
  .hero-inner { grid-template-columns: 1fr; gap: 20px; }
  .hero-visual { height: 420px; max-width: 520px; margin: 24px auto 0; width: 100%; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .app-wrap { grid-template-columns: 1fr; }
  .campus-feature { grid-template-columns: 1fr; }
  .honor-grid { grid-template-columns: repeat(2, 1fr); }
  .app-phone { margin-top: 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cta-inner { justify-content: center; text-align: center; }
  .cta-actions { justify-content: center; }
}

@media (max-width: 1199px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 74px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    box-shadow: 0 24px 40px rgba(74,0,16,.14);
    padding: 12px 6%;
    transform: translateY(-16px);
    opacity: 0;
    pointer-events: none;
    transition: all .3s ease;
    border-bottom: 1px solid var(--line);
    max-height: calc(100vh - 74px);
    overflow-y: auto;
  }
  .main-nav.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-link { padding: 14px 4px; border-bottom: 1px solid #FAEFEB; font-size: 16px; }
  .nav-link::after { display: none; }
}

@media (max-width: 720px) {
  .topbar-inner { justify-content: center; }
  .topbar-slogan { display: none; }
  .header-actions .btn { display: none; }
  .course-grid, .online-grid, .feature-grid, .campus-grid { grid-template-columns: 1fr; }
  .class-grid { grid-template-columns: 1fr; }
  .teacher-grid { grid-template-columns: 1fr; }
  .book-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-visual { height: 400px; }
  .study-card { width: 74%; }
  .card-front { left: 0; }
  .card-back { right: 0; }
  .hero-badge { left: -2%; }
  .hero-trust { gap: 20px; flex-wrap: wrap; }
  .stats { margin-top: -30px; }
  .stat-item { padding: 22px 12px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .story-card { padding: 30px 24px 26px; }
  .online-bottom { flex-wrap: wrap; }
  .flow-steps { gap: 10px 16px; }
  .qa-list { grid-template-columns: 1fr; }
  .ac-elements { grid-template-columns: 1fr 1fr; }
  .page-body { padding: 36px 0 56px; }
  .page-table { display: block; overflow-x: auto; white-space: nowrap; }
}

@media (max-width: 480px) {
  .book-grid { grid-template-columns: repeat(2, 1fr); }
}

/* =========================================================
   资讯中心 · 考研节点时间线
   ========================================================= */
.tl-overview {
  display: flex;
  align-items: center;
  gap: 18px;
  background: linear-gradient(120deg, var(--brand-deep), var(--brand) 70%, var(--accent));
  color: var(--white);
  border-radius: var(--radius);
  padding: 22px 26px;
  margin-bottom: 34px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.tl-overview:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.tl-overview-tag {
  flex: none;
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.5);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
}
.tl-overview h2 { font-size: 19px; margin-bottom: 4px; }
.tl-overview p { font-size: 13.5px; color: rgba(255,255,255,.8); }
.tl-overview-arrow { margin-left: auto; font-size: 22px; font-weight: 900; }

.tl-wrap { padding-left: 6px; }
.tl-stage {
  position: relative;
  padding-left: 34px;
  margin-bottom: 34px;
}
.tl-stage::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: -34px;
  width: 2px;
  background: var(--line);
}
.tl-stage:last-child::before { display: none; }
.tl-dot {
  position: absolute;
  left: 0;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--white);
  border: 4px solid var(--brand);
  box-shadow: 0 0 0 3px var(--paper);
}
.tl-stage-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.tl-stage-head h2 { font-size: 20px; font-weight: 900; margin: 0; }
.tl-range { font-size: 13px; color: var(--ink-3); }
.tl-status {
  font-size: 12px;
  font-weight: 800;
  padding: 3px 12px;
  border-radius: 999px;
}
.tl-live { color: #fff; background: var(--accent); }
.tl-soon { color: #fff; background: var(--brand); }
.tl-pending { color: var(--ink-3); background: var(--paper-2); border: 1px solid var(--line); }
.tl-sub { font-size: 13px; color: var(--ink-3); margin: 6px 0 14px; }
.tl-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.tl-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.tl-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.tl-tag {
  align-self: flex-start;
  font-size: 12px;
  font-weight: 800;
  color: var(--brand);
  background: var(--paper-2);
  padding: 2px 10px;
  border-radius: 999px;
}
.tl-card h3 { font-size: 16px; font-weight: 800; line-height: 1.5; }
.tl-card p { font-size: 13px; color: var(--ink-2); line-height: 1.7; margin: 0; }
.tl-card small { font-size: 12px; color: var(--ink-3); margin-top: auto; }
.tl-empty {
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  color: var(--ink-3);
  font-size: 13px;
  padding: 22px;
  text-align: center;
  grid-column: 1 / -1;
}
@media (max-width: 900px) {
  .tl-cards { grid-template-columns: 1fr; }
  .tl-overview { flex-direction: column; align-items: flex-start; text-align: left; }
  .tl-overview-arrow { display: none; }
}
.cohort-tabs {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.cohort-tab {
  font-size: 15px;
  font-weight: 800;
  color: var(--ink-2);
  padding: 10px 26px;
  border-radius: 999px;
  border: 1.5px solid var(--line);
  background: var(--white);
  cursor: pointer;
  transition: all .25s ease;
}
.cohort-tab:hover { color: var(--brand); border-color: #F0B9A8; }
.cohort-tab.active {
  color: var(--white);
  background: var(--grad);
  border-color: transparent;
  box-shadow: 0 8px 20px rgba(200, 40, 30, .25);
}
.cohort-panel { display: none; }
.cohort-panel.active { display: block; animation: fadeUp .45s ease; }
.tl-qa { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 14px; }
@media (max-width: 900px) {
  .tl-qa { grid-template-columns: 1fr; }
}
.founder-wrap {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  margin: 6px 0 20px;
}
.founder-photo {
  flex: 0 0 240px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.founder-photo img { width: 100%; display: block; }
.founder-info { flex: 1; }
.founder-info h3 { font-size: 24px; font-weight: 900; margin-bottom: 10px; }
.founder-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.founder-badges span {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--brand);
  background: var(--paper-2);
  border: 1px solid var(--line);
  padding: 4px 12px;
  border-radius: 999px;
}
.founder-info p { font-size: 14px; color: var(--ink-2); line-height: 1.9; }
.founder-honors {
  margin-top: 14px;
  background: var(--paper-2);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
}
.founder-honors strong { font-size: 13.5px; }
.founder-honors p { font-size: 12.5px; color: var(--ink-2); margin: 6px 0 0; line-height: 1.8; }
.culture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 6px 0 20px;
}
.culture-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 18px;
}
.culture-card h3 { font-size: 15px; font-weight: 800; color: var(--brand); margin-bottom: 6px; }
.culture-card p { font-size: 13.5px; color: var(--ink-2); line-height: 1.8; margin: 0; }
.media-date {
  display: block;
  font-size: 12px;
  color: var(--ink-3);
  margin-top: 4px;
}
@media (max-width: 900px) {
  .founder-wrap { flex-direction: column; align-items: center; text-align: center; }
  .founder-photo { flex-basis: auto; width: 220px; }
  .founder-badges { justify-content: center; }
  .culture-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .culture-grid { grid-template-columns: 1fr; }
}
.page-body img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  margin: 14px 0;
  border: 1px solid var(--line);
}
.page-body img.fzlc__line,
.page-body img.node__img { border: none; box-shadow: none; }
.page-body img.fzlc__line { margin: 0; border-radius: 0; }
.page-body img.node__img { border-radius: 6px; }
.media-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 6px 0 20px;
}
.media-card {
  display: flex;
  gap: 14px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.media-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.media-thumb {
  flex: 0 0 210px;
  aspect-ratio: 3 / 2;
  border-radius: 8px;
  overflow: hidden;
  background: var(--paper-2);
}
.media-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; margin: 0; border: none; }
.media-body h3 { font-size: 15px; font-weight: 800; line-height: 1.5; margin: 6px 0 6px; }
.media-summary {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.7;
  margin: 0 0 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.media-meta { font-size: 12px; color: var(--ink-3); }
@media (max-width: 900px) {
  .media-grid { grid-template-columns: 1fr; }
  .media-thumb { flex-basis: 140px; }
}
.about-nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 6px 0 20px;
}
.about-nav-card {
  display: block;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 18px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.about-nav-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.about-nav-card h3 { font-size: 16px; font-weight: 800; margin-bottom: 6px; }
.about-nav-card p { font-size: 13px; color: var(--ink-2); line-height: 1.7; margin: 0 0 6px; }
.about-nav-card small { color: var(--accent); font-weight: 800; }
@media (max-width: 900px) {
  .about-nav { grid-template-columns: 1fr; }
}
.htl {
  position: relative;
  margin: 10px 0 20px;
}
.htl::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--line);
  transform: translateX(-50%);
}
.htl-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 48px;
}
.htl-item.left { flex-direction: row; }
.htl-item.right { flex-direction: row-reverse; }
.htl-item.hero { justify-content: center; }
.htl-dot {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--white);
  border: 4px solid var(--brand);
  box-shadow: 0 0 0 3px var(--paper);
}
.htl-item .htl-dot { left: calc(50% - 7px); right: auto; }
.htl-media { flex: 0 0 42%; display: flex; justify-content: center; }
.htl-media img { width: 100%; max-width: 280px; height: auto; display: block; }
.htl-content { flex: 1; min-width: 0; }
.htl-item.left .htl-content { text-align: left; }
.htl-item.right .htl-content { text-align: right; }
.htl-year {
  display: block;
  font-size: 40px;
  font-weight: 900;
  color: var(--brand);
  line-height: 1.1;
  letter-spacing: 2px;
}
.htl-stage {
  display: block;
  font-size: 20px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 2px;
  margin: 4px 0 8px;
}
.htl-content p { font-size: 14px; color: var(--ink-2); line-height: 1.9; margin: 0; }
@media (max-width: 900px) {
  .htl::before { left: 12px; transform: none; }
  .htl-item, .htl-item.left, .htl-item.right {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 36px;
    padding-left: 36px;
  }
  .htl-item.hero { justify-content: flex-start; }
  .htl-item .htl-dot { left: 5px; }
  .htl-media { flex: none; width: 100%; justify-content: flex-start; }
  .htl-media img { max-width: 200px; }
  .htl-item.left .htl-content, .htl-item.right .htl-content { text-align: left; }
  .htl-year { font-size: 32px; }
}
.tl-stage-guide {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  margin-top: 8px;
}
.tl-stage-guide h3 { font-size: 17px; margin-bottom: 6px; }
.tl-stage-guide p { font-size: 13.5px; color: var(--ink-2); margin-bottom: 14px; }
.kf-consult { text-align: center; }
.kf-tip { font-size: 14px; color: var(--ink-2); line-height: 1.8; margin-bottom: 16px; }
.kf-phone { margin-top: 12px; border: 1.5px solid var(--line); color: var(--ink-2); background: var(--white); }
.kf-phone:hover { border-color: var(--accent); color: var(--brand); background: var(--white); }

/* =========================================================
   发展历程（复刻旧站版式）
   ========================================================= */
@font-face {
  font-family: "DIN";
  src: url("../assets/fonts/DIN.TTF") format("truetype");
  font-display: swap;
}
.fzlc { position: relative; margin: 10px 0 20px; }
.fzlc__line {
  width: 255px;
  height: 142px;
  position: absolute;
  top: -110px;
  left: 90px;
}
.fzlc__wrap {
  position: relative;
  display: flex;
  margin-top: 160px;
  align-items: flex-start;
}
.fzlc__wrap::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: #C8161D;
  opacity: 0.2;
  transform: translateX(-50%);
  z-index: 0;
}
.fzlc__col--l,
.fzlc__col--r {
  flex: 0 0 50%;
  max-width: 50%;
  position: relative;
  z-index: 1;
  box-sizing: border-box;
}
.fzlc__col--l { padding-right: 30px; text-align: left; }
.fzlc__col--r { padding-left: 30px; text-align: left; }
.node {
  position: relative;
  display: block;
  min-width: 0;
  margin-bottom: 50px;
}
.fzlc__col--l .node:last-child,
.fzlc__col--r .node:last-child { margin-bottom: 0; }
.fzlc__col--l .node::before {
  content: "";
  position: absolute;
  right: -30px;
  top: 8px;
  width: 0;
  height: 0;
  border: 7px solid transparent;
  border-right-color: #E1251B;
  z-index: 2;
}
.fzlc__col--r .node::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 8px;
  width: 0;
  height: 0;
  border: 7px solid transparent;
  border-left-color: #E1251B;
  z-index: 2;
}
.node--tag .node__tag-head {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}
.node--tag .node__tag-head::after,
.node__plain-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 130px;
  height: 10px;
  background: #E1251B;
  border-radius: 2px;
  opacity: 0.1;
}
.node__tag-tag { color: #E1251B; font-size: 24px; line-height: 1.2; }
.node__tag-yr {
  font-size: 30px;
  color: #E1251B;
  font-weight: 800;
  line-height: 1;
  font-family: "DIN", sans-serif;
}
.node--plain .node__plain-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 10px;
  position: relative;
}
.node__plain-yr {
  color: #E1251B;
  font-size: 30px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.5px;
  font-family: "DIN", sans-serif;
}
.node__plain-title { color: #E1251B; font-size: 24px; line-height: 1.2; }
.node__desc { color: #666; font-size: 14px; line-height: 24px; margin: 10px 0 14px; }
.node__img {
  display: block;
  width: 200px;
  height: 100px;
  object-fit: cover;
  border-radius: 6px;
  margin-top: 8px;
}
.fzlc__col--l .node__img { margin-left: auto; position: relative; }
@media (max-width: 960px) {
  .fzlc__wrap { flex-direction: column; }
  .fzlc__wrap::before { display: none; }
  .fzlc__col--l,
  .fzlc__col--r {
    flex: 1 1 auto;
    max-width: 100%;
    padding-left: 0 !important;
    padding-right: 0 !important;
  }
  .fzlc__col--l .node::before,
  .fzlc__col--r .node::before { display: none; }
  .node { margin-bottom: 56px; }
  .fzlc__line { left: 50%; transform: translateX(-50%); }
}

/* ===== 资讯中心：专题卡与频道卡 ===== */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 4px 0 30px;
}
.topic-card {
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
  padding: 18px 20px;
  transition: all .25s ease;
}
.topic-card:hover {
  border-color: #F0B9A8;
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.topic-card h3 {
  margin: 10px 0 6px;
  font-size: 17px;
  color: var(--ink);
}
.topic-card p {
  margin: 0;
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.6;
}
.topic-card .qa-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  color: var(--brand);
  background: var(--paper-2);
  border-radius: 999px;
  padding: 3px 10px;
}
.channel-arrow {
  display: block;
  margin-top: 10px;
  font-size: 15px;
  font-weight: 800;
  color: var(--brand);
}
.channel-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 4px 0 30px;
}
.channel-card {
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
  padding: 18px 18px 14px;
  transition: all .25s ease;
}
.channel-card:hover {
  border-color: #F0B9A8;
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.channel-card h3 {
  margin: 10px 0 6px;
  font-size: 16.5px;
  color: var(--ink);
}
.channel-card p {
  margin: 0;
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.6;
}
.channel-card .qa-tag {
  font-size: 11px;
  font-weight: 800;
  color: var(--brand);
  background: var(--paper-2);
  border-radius: 999px;
  padding: 3px 10px;
}
.channel-card .channel-arrow { margin-top: 8px; }
@media (max-width: 900px) {
  .channel-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .topic-grid, .channel-grid { grid-template-columns: 1fr; }
}

/* ===== 资讯中心：时间线专题卡 + 频道区块 ===== */
.topic-grid-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 4px 0 14px;
}
.topic-card-main {
  background: linear-gradient(135deg, #FFF9F7 0%, #FFFFFF 60%);
}
.topic-grid-sub {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 4px 0 30px;
}
.channel-sections {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 24px;
  margin: 4px 0 30px;
}
.channel-section {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
  padding: 18px;
}
.channel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.channel-head h3 { margin: 0; font-size: 17px; font-weight: 900; }
.channel-head h3 a { color: var(--ink); transition: color .2s; }
.channel-head h3 a:hover { color: var(--brand); }
.channel-count {
  font-size: 12px;
  color: var(--ink-3);
  background: var(--paper-2);
  border-radius: 999px;
  padding: 2px 9px;
  white-space: nowrap;
}
.channel-more {
  margin-left: auto;
  font-size: 13px;
  font-weight: 700;
  color: var(--brand);
  white-space: nowrap;
}
.channel-more:hover { text-decoration: underline; }
.channel-section .qa-list { grid-template-columns: 1fr; }
/* 资讯首页轻量列表：去掉每条资讯的边框，内容多时不显累赘 */
.qa-list.qa-plain { gap: 2px 14px; }
.qa-list.qa-plain .qa-link {
  border: none;
  background: transparent;
  border-radius: 8px;
  padding: 10px 8px;
  box-shadow: none;
}
.qa-list.qa-plain .qa-link:hover {
  border: none;
  background: var(--paper-2);
  box-shadow: none;
  transform: none;
  color: var(--brand);
}
.qa-list.qa-plain .qa-link .qa-tag { background: transparent; }
/* 频道页文章列表：单栏轻量排列，阅读更顺畅 */
.qa-list.channel-list { grid-template-columns: 1fr; }
@media (max-width: 900px) {
  .channel-sections { grid-template-columns: 1fr; }
  .topic-grid-main { grid-template-columns: 1fr; }
  .topic-grid-sub { grid-template-columns: 1fr; }
}