/* =========================================================
   湾区（广东）数字经济研究院 — 全站样式
   设计系统：深海军蓝 + 科技蓝 + 湾区金橙 | 8pt 网格
   ========================================================= */
:root {
  --navy-900: #081A38;
  --navy-800: #0B2545;
  --navy-700: #13315C;
  --blue-600: #1B5FD9;
  --blue-500: #2E7CF6;
  --blue-100: #E3EEFF;
  --gold-500: #F0A22E;
  --gold-400: #FFC35C;
  --bg: #F5F8FC;
  --white: #FFFFFF;
  --ink: #17233A;
  --muted: #5A6B85;
  --line: #E3EAF4;
  --radius-lg: 16px;
  --radius-md: 12px;
  --shadow-1: 0 2px 8px rgba(11, 37, 69, 0.06);
  --shadow-2: 0 8px 24px rgba(11, 37, 69, 0.10);
  --shadow-3: 0 16px 48px rgba(11, 37, 69, 0.16);
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: auto; }
body {
  overflow-x: hidden;
  overflow-wrap: break-word;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--white);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4 { line-height: 1.3; font-weight: 700; color: var(--navy-800); }

/* ---------- 通用小件 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.18em;
  color: var(--blue-600); text-transform: uppercase;
  margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--gold-500); }
.section { padding: 96px 0; }
.section--tint { background: var(--bg); }
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head--center .eyebrow { justify-content: center; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 40px); letter-spacing: 0.01em; }
.section-head p { margin-top: 14px; color: var(--muted); font-size: 17px; text-wrap: pretty; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 32px; border-radius: 999px; border: 1px solid transparent;
  font-size: 15px; font-weight: 600; letter-spacing: 0.04em;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
}
.btn--primary { background: var(--blue-600); color: #fff; box-shadow: 0 8px 20px rgba(27, 95, 217, 0.32); }
.btn--primary:hover { background: var(--blue-500); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(27, 95, 217, 0.40); }
.btn--gold { background: var(--gold-500); color: var(--navy-900); box-shadow: 0 8px 20px rgba(240, 162, 46, 0.35); }
.btn--gold:hover { background: var(--gold-400); transform: translateY(-2px); }
.btn--ghost { border-color: rgba(255, 255, 255, 0.5); color: #fff; background: rgba(255, 255, 255, 0.06); backdrop-filter: blur(4px); }
.btn--ghost:hover { background: rgba(255, 255, 255, 0.16); transform: translateY(-2px); }
.btn--outline { border-color: var(--blue-600); color: var(--blue-600); background: transparent; }
.btn--outline:hover { background: var(--blue-100); transform: translateY(-2px); }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background 0.35s ease, box-shadow 0.35s ease, padding 0.35s ease;
  padding: 18px 0;
}
.site-header.is-solid {
  background: rgba(8, 26, 56, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 24px rgba(8, 26, 56, 0.25);
  padding: 10px 0;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; color: #fff; }
.brand__mark { width: 44px; height: 44px; flex: none; }
.brand__name { font-size: 19px; font-weight: 800; letter-spacing: 0.06em; line-height: 1.2; }
.brand__sub { font-size: 10.5px; letter-spacing: 0.14em; opacity: 0.72; font-weight: 400; }

.main-nav ul { display: flex; align-items: center; gap: 6px; }
.main-nav a.nav-link, .main-nav .nav-drop > a {
  display: inline-block; padding: 10px 16px; color: rgba(255, 255, 255, 0.88);
  font-size: 15px; font-weight: 500; letter-spacing: 0.05em; border-radius: 8px;
  transition: color 0.2s ease, background 0.2s ease;
}
.main-nav a:hover, .main-nav .nav-drop:hover > a { color: #fff; background: rgba(255, 255, 255, 0.10); }
.main-nav a.is-active { color: var(--gold-400); }

.nav-drop { position: relative; }
.nav-drop__menu {
  position: absolute; top: calc(100% + 10px); left: 50%; transform: translateX(-50%) translateY(8px);
  min-width: 220px; background: #fff; border-radius: var(--radius-md);
  box-shadow: var(--shadow-3); padding: 10px; opacity: 0; visibility: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
}
.nav-drop:hover .nav-drop__menu, .nav-drop:focus-within .nav-drop__menu {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
.nav-drop__menu a {
  display: flex; align-items: center; gap: 12px; padding: 12px 14px;
  border-radius: 8px; color: var(--ink); font-size: 14.5px; font-weight: 500;
  transition: background 0.2s ease;
}
.nav-drop__menu a:hover { background: var(--blue-100); color: var(--blue-600); }
.nav-drop__menu .dot { width: 8px; height: 8px; border-radius: 3px; flex: none; }

.nav-cta { flex: none; }
.header-actions { display: flex; align-items: center; gap: 16px; }
.nav-toggle { display: none; width: 42px; height: 42px; border: none; background: rgba(255,255,255,0.12); border-radius: 10px; position: relative; }
.nav-toggle span { position: absolute; left: 11px; right: 11px; height: 2px; background: #fff; transition: all 0.3s ease; }
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 20px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.nav-toggle.is-open span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { top: 20px; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 92vh; display: flex; align-items: center; overflow: hidden; color: #fff; }
.hero__bg { position: absolute; inset: 0; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; }
.hero__bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(8, 26, 56, 0.92) 0%, rgba(11, 37, 69, 0.72) 45%, rgba(11, 37, 69, 0.35) 100%);
}
.hero__inner { position: relative; z-index: 2; padding: 160px 0 120px; }
.hero__tag {
  display: inline-flex; align-items: center; gap: 10px; padding: 8px 18px;
  border: 1px solid rgba(255, 255, 255, 0.28); border-radius: 999px;
  font-size: 13px; letter-spacing: 0.22em; color: rgba(255, 255, 255, 0.85); margin-bottom: 28px;
}
.hero__tag::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--gold-500); box-shadow: 0 0 12px var(--gold-500); }
.hero h1 {
  color: #fff; font-size: clamp(34px, 5.4vw, 64px); font-weight: 800;
  letter-spacing: 0.02em; line-height: 1.22; max-width: 820px;
}
.hero h1 em { font-style: normal; color: var(--gold-400); }
.hero__desc { margin-top: 26px; max-width: 640px; font-size: 18px; color: rgba(255, 255, 255, 0.82); text-wrap: pretty; }
.hero__actions { margin-top: 44px; display: flex; gap: 18px; flex-wrap: wrap; }

.hero__stats {
  position: relative; z-index: 2; margin-top: 88px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: rgba(255, 255, 255, 0.14); border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg); overflow: hidden; backdrop-filter: blur(8px);
}
.hero__stats .stat { background: rgba(8, 26, 56, 0.55); padding: 28px 28px 24px; }
.stat__num { font-size: 42px; font-weight: 800; color: #fff; letter-spacing: 0.01em; font-variant-numeric: tabular-nums; line-height: 1.1; }
.stat__num sup { font-size: 20px; color: var(--gold-400); margin-left: 2px; }
.stat__label { margin-top: 8px; font-size: 13.5px; color: rgba(255, 255, 255, 0.66); letter-spacing: 0.04em; }

/* ---------- 首页 · 四大板块 ---------- */
.sector-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.sector-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  min-height: 340px; display: flex; align-items: flex-end;
  box-shadow: var(--shadow-2); transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.sector-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-3); }
.sector-card__bg { position: absolute; inset: 0; }
.sector-card__bg img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.sector-card:hover .sector-card__bg img { transform: scale(1.06); }
.sector-card__bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(8, 26, 56, 0.05) 0%, rgba(8, 26, 56, 0.85) 100%);
}
.sector-card__body { position: relative; z-index: 2; padding: 32px; color: #fff; }
.sector-card__no { font-size: 13px; letter-spacing: 0.3em; color: var(--gold-400); font-weight: 700; }
.sector-card__body h3 { color: #fff; font-size: 25px; margin-top: 10px; }
.sector-card__body p { margin-top: 10px; font-size: 14.5px; color: rgba(255, 255, 255, 0.78); max-width: 92%; }
.sector-card__more {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 18px;
  font-size: 14px; font-weight: 600; color: var(--gold-400); letter-spacing: 0.06em;
}
.sector-card__more .arrow { transition: transform 0.25s ease; }
.sector-card:hover .sector-card__more .arrow { transform: translateX(6px); }

/* ---------- 服务卡片 ---------- */
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.service-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 32px 26px; display: flex; flex-direction: column; gap: 14px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); border-color: transparent; }
.service-card__icon {
  width: 52px; height: 52px; border-radius: 14px; background: var(--blue-100);
  display: flex; align-items: center; justify-content: center; flex: none;
}
.service-card__icon svg { width: 26px; height: 26px; }
.service-card__sector { font-size: 12px; font-weight: 700; letter-spacing: 0.16em; color: var(--blue-600); }
.service-card h3 { font-size: 18.5px; }
.service-card p { font-size: 14px; color: var(--muted); flex: 1; text-wrap: pretty; }
.service-card__link { font-size: 13.5px; font-weight: 600; color: var(--blue-600); display: inline-flex; align-items: center; gap: 6px; }
.service-card:hover .service-card__link .arrow { transform: translateX(4px); }
.service-card__link .arrow { transition: transform 0.25s ease; }

/* ---------- 生态平台 ---------- */
.platform-band { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.platform-item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md);
  padding: 28px 20px; text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.platform-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
.platform-item__badge {
  width: 56px; height: 56px; margin: 0 auto 16px; border-radius: 50%;
  background: linear-gradient(135deg, var(--navy-700), var(--blue-600));
  color: #fff; font-weight: 800; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
}
.platform-item h4 { font-size: 15.5px; line-height: 1.5; }
.platform-item p { margin-top: 6px; font-size: 12.5px; color: var(--muted); }

/* ---------- 优势条目 ---------- */
.advantage-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.advantage {
  background: #fff; border-radius: var(--radius-lg); padding: 36px 30px;
  border-top: 4px solid var(--gold-500); box-shadow: var(--shadow-1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.advantage:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
.advantage__no { font-size: 15px; font-weight: 800; color: var(--gold-500); letter-spacing: 0.2em; }
.advantage h3 { margin-top: 12px; font-size: 20px; }
.advantage p { margin-top: 12px; font-size: 14.5px; color: var(--muted); }

/* ---------- 动态列表 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card {
  background: #fff; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--line); transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex; flex-direction: column;
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-2); }
.news-card__cover { height: 180px; overflow: hidden; }
.news-card__cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.news-card:hover .news-card__cover img { transform: scale(1.05); }
.news-card__body { padding: 24px; flex: 1; display: flex; flex-direction: column; gap: 10px; }
.news-card__meta { font-size: 12.5px; color: var(--muted); display: flex; gap: 14px; }
.news-card__meta .cat { color: var(--blue-600); font-weight: 600; }
.news-card h3 { font-size: 17px; line-height: 1.55; flex: 1; }

/* ---------- CTA 条 ---------- */
.cta-band { background: linear-gradient(115deg, var(--navy-900) 0%, var(--navy-700) 60%, var(--blue-600) 130%); color: #fff; padding: 88px 0; }
.cta-band__inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; font-size: clamp(24px, 3vw, 36px); }
.cta-band h2 em { font-style: normal; color: var(--gold-400); }
.cta-band p { margin-top: 12px; color: rgba(255, 255, 255, 0.75); max-width: 560px; }
.cta-band__actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--navy-900); color: rgba(255, 255, 255, 0.72); padding: 72px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 56px; }
.footer-brand p { margin-top: 18px; font-size: 14px; line-height: 1.9; max-width: 320px; }
.site-footer h4 { color: #fff; font-size: 15px; letter-spacing: 0.12em; margin-bottom: 20px; }
.site-footer ul li { margin-bottom: 12px; }
.site-footer ul a { font-size: 14px; transition: color 0.2s ease; }
.site-footer ul a:hover { color: var(--gold-400); }
.footer-contact li { display: flex; gap: 10px; font-size: 14px; line-height: 1.8; }
.footer-contact .ico { color: var(--gold-400); flex: none; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.10); padding: 22px 0; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: rgba(255, 255, 255, 0.45); }

/* ---------- 内页 Hero ---------- */
.page-hero { position: relative; padding: 190px 0 96px; color: #fff; overflow: hidden; }
.page-hero__bg { position: absolute; inset: 0; }
.page-hero__bg img { width: 100%; height: 100%; object-fit: cover; }
.page-hero__bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, rgba(8,26,56,0.94) 0%, rgba(11,37,69,0.78) 55%, rgba(19,49,92,0.55) 100%); }
.page-hero .container { position: relative; z-index: 2; }
.breadcrumb { font-size: 13.5px; letter-spacing: 0.08em; color: rgba(255,255,255,0.6); margin-bottom: 20px; }
.breadcrumb a { color: rgba(255,255,255,0.8); }
.breadcrumb a:hover { color: var(--gold-400); }
.page-hero h1 { color: #fff; font-size: clamp(30px, 4.4vw, 52px); letter-spacing: 0.02em; }
.page-hero p { margin-top: 18px; max-width: 680px; font-size: 17px; color: rgba(255,255,255,0.80); text-wrap: pretty; }

/* ---------- 内页图文分栏 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split__media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-2); }
.split__media img { width: 100%; height: 100%; object-fit: cover; }
.split h2 { font-size: clamp(24px, 2.8vw, 34px); }
.split p { margin-top: 16px; color: var(--muted); }
.split .eyebrow { margin-bottom: 12px; }

.check-list { margin-top: 24px; display: grid; gap: 14px; }
.check-list li { display: flex; gap: 12px; font-size: 15px; }
.check-list .tick {
  flex: none; width: 22px; height: 22px; margin-top: 3px; border-radius: 50%;
  background: var(--blue-100); color: var(--blue-600); font-size: 12px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.check-list b { color: var(--navy-800); }

/* ---------- 详情卡片（服务明细） ---------- */
.detail-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.detail-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 36px 32px; position: relative; overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.detail-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-2); }
.detail-card::before {
  content: ""; position: absolute; top: 0; left: 0; width: 56px; height: 4px;
  background: linear-gradient(90deg, var(--blue-600), var(--gold-500));
}
.detail-card h3 { font-size: 20px; margin-bottom: 12px; }
.detail-card > p { font-size: 14.5px; color: var(--muted); }
.detail-card ul { margin-top: 18px; display: grid; gap: 10px; }
.detail-card ul li { display: flex; gap: 10px; font-size: 14px; color: var(--ink); }
.detail-card ul li::before { content: ""; flex: none; width: 6px; height: 6px; border-radius: 2px; background: var(--gold-500); margin-top: 10px; }

/* ---------- 步骤条 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 32px 26px; position: relative;
}
.step__no {
  width: 44px; height: 44px; border-radius: 12px; background: var(--navy-800); color: var(--gold-400);
  display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 17px;
  margin-bottom: 18px; font-variant-numeric: tabular-nums;
}
.step h3 { font-size: 17.5px; }
.step p { margin-top: 10px; font-size: 13.5px; color: var(--muted); }

/* ---------- FAQ ---------- */
.faq-list { max-width: 820px; margin: 0 auto; display: grid; gap: 16px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md); overflow: hidden; }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 22px 26px;
  font-weight: 600; font-size: 16px; color: var(--navy-800);
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 22px; color: var(--blue-600); font-weight: 400; transition: transform 0.25s ease; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-a { padding: 0 26px 24px; color: var(--muted); font-size: 14.5px; }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: start; }
.contact-info-card { background: var(--navy-800); color: #fff; border-radius: var(--radius-lg); padding: 44px 40px; }
.contact-info-card h3 { color: #fff; font-size: 22px; margin-bottom: 10px; }
.contact-info-card > p { color: rgba(255,255,255,0.7); font-size: 14.5px; }
.contact-lines { margin-top: 32px; display: grid; gap: 24px; }
.contact-line { display: flex; gap: 16px; }
.contact-line__ico {
  width: 44px; height: 44px; flex: none; border-radius: 12px;
  background: rgba(255,255,255,0.08); display: flex; align-items: center; justify-content: center;
  color: var(--gold-400);
}
.contact-line h4 { color: #fff; font-size: 14px; letter-spacing: 0.1em; }
.contact-line p { font-size: 14.5px; color: rgba(255,255,255,0.78); margin-top: 4px; }
.contact-form { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 44px 40px; box-shadow: var(--shadow-1); }
.contact-form h3 { font-size: 22px; margin-bottom: 8px; }
.contact-form > p { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--navy-800); margin-bottom: 8px; }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; padding: 13px 16px; border: 1px solid var(--line); border-radius: 10px;
  font-family: inherit; font-size: 14.5px; color: var(--ink); background: var(--bg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--blue-600); box-shadow: 0 0 0 3px rgba(27,95,217,0.12); background: #fff;
}
.form-note { font-size: 12.5px; color: var(--muted); margin-top: 14px; }

/* ---------- 动态页占位 ---------- */
.timeline { max-width: 860px; margin: 0 auto; position: relative; padding-left: 32px; }
.timeline::before { content: ""; position: absolute; left: 6px; top: 8px; bottom: 8px; width: 2px; background: var(--line); }
.timeline-item { position: relative; padding: 0 0 40px 24px; }
.timeline-item::before {
  content: ""; position: absolute; left: -32px; top: 8px; width: 14px; height: 14px;
  border-radius: 50%; background: #fff; border: 3px solid var(--blue-600);
}
.timeline-item time { font-size: 13px; font-weight: 700; color: var(--blue-600); letter-spacing: 0.08em; }
.timeline-item h3 { margin-top: 8px; font-size: 18.5px; }
.timeline-item p { margin-top: 10px; font-size: 14.5px; color: var(--muted); }
.placeholder-tag {
  display: inline-block; padding: 3px 10px; border-radius: 999px;
  background: var(--gold-500); color: var(--navy-900); font-size: 11.5px; font-weight: 700;
  letter-spacing: 0.08em; vertical-align: 2px; margin-left: 10px;
}

/* ---------- 关于页 ---------- */
.mission-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.mission-card { background: #fff; border-radius: var(--radius-lg); padding: 40px 32px; border: 1px solid var(--line); }
.mission-card h3 { font-size: 19px; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.mission-card h3 .bar { width: 4px; height: 20px; border-radius: 2px; background: linear-gradient(180deg, var(--blue-600), var(--gold-500)); }
.mission-card p { font-size: 14.5px; color: var(--muted); }
.mv-band { background: var(--navy-800); color: #fff; border-radius: var(--radius-lg); padding: 56px 48px; }
.mv-band h2 { color: #fff; }
.mv-band p { color: rgba(255,255,255,0.78); max-width: 780px; margin-top: 16px; font-size: 16px; }
.mv-band em { font-style: normal; color: var(--gold-400); font-weight: 700; }

/* ---------- 动效 ---------- */


/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .platform-band { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .main-nav {
    position: fixed; top: 0; right: 0; bottom: 0; width: min(320px, 84vw);
    background: var(--navy-900); padding: 96px 32px 40px;
    transform: translateX(100%); transition: transform 0.35s ease; z-index: 90;
    overflow-y: auto;
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 4px; }
  .main-nav a.nav-link, .main-nav .nav-drop > a { display: block; padding: 14px 12px; font-size: 16px; }
  .nav-drop__menu {
    position: static; transform: none; opacity: 1; visibility: visible;
    background: transparent; box-shadow: none; padding: 0 0 0 16px; display: none;
  }
  .nav-drop:hover .nav-drop__menu { display: block; }
  .nav-drop__menu a { color: rgba(255,255,255,0.75); }
  .nav-drop__menu a:hover { background: rgba(255,255,255,0.08); }
  .nav-toggle { display: block; z-index: 95; }
  .nav-cta { display: none; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .sector-grid, .detail-grid, .split, .contact-grid { grid-template-columns: 1fr; }
  .advantage-list, .mission-grid, .news-grid { grid-template-columns: 1fr; }
  .split { gap: 40px; }
  .section { padding: 72px 0; }
  .contact-form, .contact-info-card { padding: 32px 24px; }
}
@media (max-width: 560px) {
  .service-grid, .steps, .platform-band, .form-row { grid-template-columns: 1fr; }
  .hero__stats { grid-template-columns: 1fr 1fr; }
  .hero__stats .stat { padding: 20px 18px; }
  .stat__num { font-size: 30px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 26px 22px; }
  .footer-grid > .footer-brand, .footer-grid > div:nth-child(4) { grid-column: 1 / -1; }
  .footer-grid > div:nth-child(4) { display: flex; flex-direction: column; align-items: center; text-align: center; }
  .footer-grid > div:nth-child(4) .footer-qr { display: flex; flex-direction: column; align-items: center; }
  .footer-grid > div:nth-child(4) .footer-contact li { justify-content: center; }
  .brand__name { font-size: 16px; }
  .brand__sub { display: none; }
}

/* ---------- v2 追加：页脚二维码 / 扫码咨询 / 分页 / 行业资讯 ---------- */
.brand__name { font-size: 18px; }
.footer-qr { margin-bottom: 18px; }
.footer-qr img { width: 112px; height: 112px; border-radius: 10px; background: #fff; padding: 4px; object-fit: cover; }
.footer-qr p { margin-top: 8px; font-size: 12.5px; color: rgba(255, 255, 255, 0.6); letter-spacing: 0.06em; }

.qr-consult { text-align: center; margin: 8px 0 26px; }
.qr-consult img { width: 210px; height: 210px; object-fit: cover; border-radius: 14px; margin: 0 auto; box-shadow: var(--shadow-2); }
.qr-tip { margin-top: 12px; font-size: 13.5px; color: var(--muted); }

.pagination { display: flex; align-items: center; justify-content: center; gap: 18px; margin-top: 48px; }
.page-btn { padding: 11px 28px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-size: 14.5px; font-weight: 600; color: var(--navy-800); transition: all 0.25s ease; }
.page-btn:hover:not(:disabled) { background: var(--blue-600); color: #fff; border-color: var(--blue-600); transform: translateY(-2px); }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.page-info { font-size: 14px; color: var(--muted); font-variant-numeric: tabular-nums; }
.page-info b { color: var(--blue-600); font-size: 16px; }

.news-card__summary { font-size: 13.5px; color: var(--muted); }

.inews-list { display: grid; gap: 28px; max-width: 960px; margin: 0 auto; }
.inews-card { display: grid; grid-template-columns: 320px 1fr; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.inews-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
.inews-card__cover { height: 100%; min-height: 220px; }
.inews-card__cover img { width: 100%; height: 100%; object-fit: cover; }
.inews-card__body { padding: 30px 32px; display: flex; flex-direction: column; gap: 12px; }
.inews-card__body h3 { font-size: 20px; }
.inews-card__body p { font-size: 14.5px; color: var(--muted); flex: 1; text-wrap: pretty; }
.inews-card__link { font-size: 13.5px; font-weight: 600; color: var(--blue-600); display: inline-flex; gap: 6px; align-items: center; }
.inews-card__link .arrow { transition: transform 0.25s ease; }
.inews-card:hover .inews-card__link .arrow { transform: translateX(4px); }

@media (max-width: 900px) {
  .inews-card { grid-template-columns: 1fr; }
  .inews-card__cover { min-height: 200px; }
}

/* v3: 国际教育板块宽卡片 */
.sector-card--wide { grid-column: 1 / -1; }

/* ---------- v4: 文章详情页 ---------- */
.article-wrap { max-width: 820px; margin: 0 auto; }
.article-cover { border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 36px; box-shadow: var(--shadow-1); }
.article-cover img { width: 100%; max-height: 460px; object-fit: cover; }
.article-body p { margin-bottom: 20px; font-size: 16.5px; line-height: 2.05; color: var(--ink); text-wrap: pretty; }
.article-actions { margin: 8px 0 40px; }
.article-nav { display: flex; gap: 16px; flex-wrap: wrap; border-top: 1px solid var(--line); padding-top: 36px; }
a.news-card { display: flex; }

/* ---------- v5: 友情链接 / 行业资讯宽封面卡片 / 详情页间距 / 移动端微调 ---------- */
.footer-links { border-top: 1px solid rgba(255, 255, 255, 0.10); padding: 26px 0; }
.footer-links h4 { margin-bottom: 14px; }
.footer-links ul { display: flex; flex-wrap: wrap; gap: 10px 26px; }
.footer-links ul a { font-size: 13.5px; color: rgba(255, 255, 255, 0.60); }
.footer-links ul a:hover { color: var(--gold-400); }
.footer-bottom a { color: rgba(255, 255, 255, 0.72); }
.footer-bottom a:hover { color: var(--gold-400); }

.inews-grid { display: grid; gap: 36px; max-width: 960px; margin: 0 auto; }
.inews-item { display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: transform 0.25s ease, box-shadow 0.25s ease; }
.inews-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
.inews-item__cover { width: 100%; aspect-ratio: 21 / 9; overflow: hidden; background: var(--navy-800); }
.inews-item__cover img { width: 100%; height: 100%; object-fit: cover; }
.inews-item__body { padding: 26px 30px 30px; display: flex; flex-direction: column; gap: 12px; }
.inews-item__body h3 { font-size: 21px; }
.inews-item__body p { font-size: 14.5px; color: var(--muted); }
.inews-item__more { font-size: 13.5px; font-weight: 600; color: var(--blue-600); }

.article-nav { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; margin-top: 56px; border-top: 1px solid var(--line); padding-top: 40px; }

@media (max-width: 560px) {
  .container { padding: 0 18px; }
  .hero__inner { padding: 130px 0 72px; }
  .hero h1 { font-size: clamp(28px, 8vw, 34px); }
  .page-hero { padding: 150px 0 68px; }
  .section { padding: 60px 0; }
  .inews-item__body { padding: 20px 18px 22px; }
  .inews-item__cover { aspect-ratio: 16 / 9; }
  .article-nav { margin-top: 44px; padding-top: 30px; }
}