/* ============ 知了学历 · 官网全局样式 ============ */
:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #3b82f6;
  --accent: #14b8a6;
  --accent-light: #2dd4bf;
  --gradient: linear-gradient(135deg, #2563eb 0%, #0ea5e9 55%, #14b8a6 100%);
  --bg: #f6f8fc;
  --surface: #ffffff;
  --text: #0f172a;
  --text-2: #475569;
  --text-3: #94a3b8;
  --border: #e2e8f0;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 50px rgba(37, 99, 235, 0.15);
  --maxw: 1200px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; }

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

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; height: 68px; gap: 32px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; }
.brand .logo {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--gradient); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 800; box-shadow: var(--shadow-lg);
}
.brand .logo-img {
  width: 42px; height: 42px; border-radius: 10px; object-fit: cover; flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.25);
}
.nav-links { display: flex; gap: 6px; margin-left: auto; }
.nav-links a {
  padding: 8px 16px; border-radius: 8px; color: var(--text-2);
  font-size: 15px; font-weight: 500; transition: all .2s;
}
.nav-links a:hover { color: var(--primary); background: rgba(37, 99, 235, 0.06); }
.nav-links a.active { color: var(--primary); background: rgba(37, 99, 235, 0.08); font-weight: 600; }
.nav-cta {
  padding: 9px 20px; border-radius: 10px; background: var(--gradient);
  color: #fff !important; font-weight: 600; box-shadow: var(--shadow-lg);
}
.nav-cta:hover { opacity: .92; }
.nav-toggle { display: none; margin-left: auto; font-size: 24px; background: none; color: var(--text); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: var(--gradient); color: #fff;
  padding: 88px 0 110px;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 82% 20%, rgba(255,255,255,.18), transparent 40%),
    radial-gradient(circle at 15% 85%, rgba(255,255,255,.12), transparent 45%);
}
.hero .container { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.28);
  padding: 6px 16px; border-radius: 999px; font-size: 13px; margin-bottom: 22px;
}
.hero h1 { font-size: 48px; line-height: 1.2; font-weight: 800; letter-spacing: -.5px; }
.hero .highlight { color: #fef08a; }
.hero p.sub { margin-top: 18px; font-size: 18px; opacity: .92; max-width: 560px; }
.hero-actions { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; border-radius: 12px; font-size: 15px; font-weight: 600;
  transition: transform .15s, box-shadow .15s, opacity .15s;
}
.btn:hover { transform: translateY(-2px); }
.btn-white { background: #fff; color: var(--primary); box-shadow: 0 8px 24px rgba(0,0,0,.15); }
.btn-ghost { background: rgba(255,255,255,.14); color: #fff; border: 1px solid rgba(255,255,255,.35); }
.btn-primary { background: var(--gradient); color: #fff; box-shadow: var(--shadow-lg); }
.btn-outline { background: #fff; color: var(--primary); border: 1px solid var(--border); }
.btn-sm { padding: 8px 16px; font-size: 13px; border-radius: 9px; }
.hero-stats { margin-top: 50px; display: flex; gap: 48px; flex-wrap: wrap; }
.hero-stat .num { font-size: 34px; font-weight: 800; }
.hero-stat .label { font-size: 14px; opacity: .85; }

/* ---------- 通用 section ---------- */
.section { padding: 80px 0; }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head .eyebrow {
  display: inline-block; color: var(--primary); font-weight: 700; font-size: 13px;
  letter-spacing: 1px; text-transform: uppercase; margin-bottom: 10px;
}
.section-head h2 { font-size: 34px; font-weight: 800; letter-spacing: -.5px; }
.section-head p { margin-top: 12px; color: var(--text-2); font-size: 16px; }

/* ---------- 业务卡片 ---------- */
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px 28px; transition: all .25s; position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.card-icon {
  width: 54px; height: 54px; border-radius: 14px; margin-bottom: 20px;
  display: flex; align-items: center; justify-content: center; font-size: 24px;
  background: rgba(37, 99, 235, 0.08); color: var(--primary);
}
.card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.card p { color: var(--text-2); font-size: 14.5px; }
.card .card-tags { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.card .tag {
  font-size: 12px; padding: 4px 12px; border-radius: 999px;
  background: var(--bg); color: var(--text-2); border: 1px solid var(--border);
}
.card .card-meta { margin-top: 20px; display: flex; gap: 24px; padding-top: 16px; border-top: 1px dashed var(--border); }
.card .card-meta b { font-size: 16px; color: var(--primary); }
.card .card-meta span { font-size: 12px; color: var(--text-3); }
.card .card-link { margin-top: 18px; color: var(--primary); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 4px; }

/* ---------- 优势 ---------- */
.advantages { background: var(--surface); }
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.adv {
  display: flex; gap: 16px; padding: 24px; border-radius: var(--radius);
  background: var(--bg); border: 1px solid var(--border); transition: all .2s;
}
.adv:hover { background: #fff; box-shadow: var(--shadow-sm); }
.adv .adv-icon { font-size: 28px; flex-shrink: 0; }
.adv h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.adv p { font-size: 13.5px; color: var(--text-2); }

/* ---------- 院校墙 ---------- */
.schools { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.school {
  padding: 10px 22px; border-radius: 10px; background: var(--surface);
  border: 1px solid var(--border); font-size: 14px; font-weight: 600; color: var(--text-2);
  transition: all .2s;
}
.school:hover { color: var(--primary); border-color: var(--primary-light); box-shadow: var(--shadow-sm); }

/* ---------- 院校分组 ---------- */
.school-groups { display: flex; flex-direction: column; gap: 20px; margin-top: 8px; }
.school-group {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 24px;
}
.school-province {
  font-size: 15px; font-weight: 700; color: var(--text);
  margin-bottom: 14px; display: flex; align-items: center; gap: 8px;
}
.school-province::before {
  content: ''; width: 4px; height: 16px; border-radius: 2px;
  background: var(--gradient); flex-shrink: 0;
}
.school-group .schools { justify-content: flex-start; }

/* ---------- 班型对比 ---------- */
.banxing-table {
  width: 100%; border-collapse: collapse; margin: 16px 0 8px;
  font-size: 13.5px;
}
.banxing-table th, .banxing-table td {
  border: 1px solid var(--border); padding: 12px 14px; text-align: left;
  vertical-align: top;
}
.banxing-table th { background: var(--bg); font-weight: 700; color: var(--text); }
.banxing-table .col-name { font-weight: 600; color: var(--text-2); white-space: nowrap; }
.banxing-table th.hl, .banxing-table td.hl { background: #eff6ff; }
.mod-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 16px; }
.mod-item {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 14px 16px;
}
.mod-item h5 { font-size: 14px; font-weight: 700; margin-bottom: 4px; color: var(--text); }
.mod-item p { font-size: 13px; color: var(--text-2); }
@media (max-width: 720px) { .mod-grid { grid-template-columns: 1fr; } }

/* ---------- 资讯列表 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: all .25s; display: flex; flex-direction: column;
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.news-cover {
  height: 170px; position: relative;
  background-size: cover; background-position: center;
  background-color: #e2e8f0;
}
.news-cover[data-cat="学历提升"] { background-image: url('/images/covers/education.png'); }
.news-cover[data-cat="职业考证"] { background-image: url('/images/covers/certification.png'); }
.news-cover[data-cat="商务咨询"] { background-image: url('/images/covers/business.png'); }
.news-cover[data-cat="留学服务"] { background-image: url('/images/covers/study-abroad.png'); }
.news-cover[data-cat="常见问题"] { background-image: url('/images/covers/faq.png'); }
.news-cover::after {
  content: attr(data-cat); position: absolute; top: 14px; left: 14px;
  background: rgba(255,255,255,.92); color: var(--primary); font-size: 12px; font-weight: 600;
  padding: 4px 12px; border-radius: 999px;
}
.news-body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.news-body h3 { font-size: 17px; font-weight: 700; line-height: 1.45; margin-bottom: 10px; }
.news-body h3 a:hover { color: var(--primary); }
.news-body p { font-size: 13.5px; color: var(--text-2); flex: 1; margin-bottom: 16px; }
.news-foot { display: flex; align-items: center; gap: 12px; font-size: 12.5px; color: var(--text-3); }
.news-foot .dot { width: 3px; height: 3px; background: var(--text-3); border-radius: 50%; }

/* ---------- 文章详情 ---------- */
.article-hero {
  background: var(--gradient); color: #fff; padding: 56px 0 64px;
}
.article-hero .cat-tag {
  display: inline-block; background: rgba(255,255,255,.18); border: 1px solid rgba(255,255,255,.3);
  padding: 4px 14px; border-radius: 999px; font-size: 13px; margin-bottom: 16px;
}
.article-hero h1 { font-size: 36px; font-weight: 800; line-height: 1.35; max-width: 820px; }
.article-hero .meta { margin-top: 18px; font-size: 14px; opacity: .9; display: flex; gap: 18px; flex-wrap: wrap; }
.article-body { padding: 56px 0; }
.article-content {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 44px 52px; max-width: 820px; margin: 0 auto; box-shadow: var(--shadow-sm);
}
.article-content h2 { font-size: 24px; font-weight: 800; margin: 30px 0 14px; }
.article-content h3 { font-size: 18px; font-weight: 700; margin: 24px 0 10px; }
.article-content p { margin: 14px 0; color: var(--text-2); font-size: 16px; }
.article-content ul, .article-content ol { margin: 14px 0; padding-left: 24px; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin: 6px 0; color: var(--text-2); }
.article-content blockquote {
  margin: 20px 0; padding: 16px 20px; border-left: 4px solid var(--primary);
  background: var(--bg); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-2);
}
.article-content strong { color: var(--text); }
.article-content code {
  background: var(--bg); padding: 2px 6px; border-radius: 5px; font-size: .9em;
}
.article-back { display: block; max-width: 820px; margin: 24px auto 0; color: var(--text-2); font-size: 14px; }
.article-back:hover { color: var(--primary); }

/* ---------- 联系/表单 ---------- */
.contact-wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; align-items: start; }
.contact-info .ci { display: flex; gap: 14px; margin-bottom: 22px; }
.contact-info .ci-icon {
  width: 46px; height: 46px; border-radius: 12px; flex-shrink: 0;
  background: rgba(37,99,235,.08); color: var(--primary); font-size: 20px;
  display: flex; align-items: center; justify-content: center;
}
.contact-info h4 { font-size: 15px; font-weight: 700; }
.contact-info p { font-size: 14px; color: var(--text-2); }
.contact-info .ci-body { flex: 1; min-width: 0; }
.contact-info .ci-wechat { align-items: flex-start; }
.qr-row { display: flex; gap: 18px; margin-top: 14px; flex-wrap: nowrap; }
.qr-item {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  flex: 0 0 auto;
}
.qr-item img {
  width: 90px; height: 90px; border-radius: 8px;
  border: 1px solid var(--border); background: #fff; padding: 3px;
  box-shadow: var(--shadow-sm); display: block;
}
.qr-item .qr-label {
  font-size: 13px; color: var(--text-1); font-weight: 600; margin-top: 2px;
}
.qr-item .qr-desc {
  font-size: 11px; color: var(--text-3); font-weight: 400;
}
@media (max-width: 480px) {
  .qr-row { flex-wrap: wrap; }
}
.form-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px; box-shadow: var(--shadow-sm); }
.form-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 22px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 6px; color: var(--text-2); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: 10px;
  font-size: 14px; font-family: inherit; color: var(--text); background: #fff; transition: border .2s, box-shadow .2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.form-group textarea { resize: vertical; min-height: 110px; }
.form-tip { margin-top: 14px; font-size: 12.5px; color: var(--text-3); }
.form-success { display: none; margin-top: 14px; padding: 12px 16px; background: #ecfdf5; border: 1px solid #a7f3d0; color: #047857; border-radius: 10px; font-size: 14px; }
.form-success.show { display: block; }

/* ---------- 页脚 ---------- */
.site-footer { background: #0b1220; color: #cbd5e1; padding: 56px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand .brand { color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: 13.5px; color: #94a3b8; max-width: 300px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer-col a { display: block; color: #94a3b8; font-size: 13.5px; margin-bottom: 10px; transition: color .2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom { margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.08); font-size: 12.5px; color: #64748b; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* ---------- 分页/筛选 ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 32px; }
.filter-bar .chip {
  padding: 8px 18px; border-radius: 999px; border: 1px solid var(--border);
  background: #fff; font-size: 14px; font-weight: 500; color: var(--text-2); transition: all .2s;
}
.filter-bar .chip:hover { border-color: var(--primary-light); color: var(--primary); }
.filter-bar .chip.active { background: var(--gradient); color: #fff; border-color: transparent; box-shadow: var(--shadow-lg); }
.search-box { margin-left: auto; position: relative; }
.search-box input {
  padding: 9px 40px 9px 16px; border: 1px solid var(--border); border-radius: 999px;
  font-size: 14px; width: 240px; outline: none;
}
.search-box input:focus { border-color: var(--primary); }
.search-box button {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  background: none; font-size: 16px; color: var(--text-3);
}
.empty { text-align: center; padding: 60px 0; color: var(--text-3); }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .cards-3, .adv-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-wrap, .footer-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 36px; }
  .article-content { padding: 28px 22px; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; background: #fff; padding: 16px; border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }
  .nav-toggle { display: block; }
  .cards-3, .adv-grid, .news-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .hero-stats { gap: 28px; }
  .form-row { grid-template-columns: 1fr; }
  .article-hero h1 { font-size: 26px; }
  .search-box { margin-left: 0; width: 100%; }
  .search-box input { width: 100%; }
}

/* ---------- 网校登录按钮 ---------- */
.nav-login {
  padding: 9px 16px; border-radius: 10px; font-size: 14px; font-weight: 600;
  color: var(--text-2); border: 1px solid var(--border); background: #fff; transition: all .2s;
}
.nav-login:hover { color: var(--primary); border-color: var(--primary-light); }

/* ---------- 页面标题 Banner ---------- */
.page-hero {
  background: var(--gradient); color: #fff; padding: 56px 0 60px; position: relative; overflow: hidden;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 85% 20%, rgba(255,255,255,.16), transparent 42%);
}
.page-hero .container { position: relative; }
.page-hero h1 { font-size: 38px; font-weight: 800; letter-spacing: -.5px; }
.page-hero p { margin-top: 12px; font-size: 16px; opacity: .92; max-width: 620px; }

/* ---------- 核心价值观 ---------- */
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.value-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 24px; text-align: center; transition: all .2s;
}
.value-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.value-card .v-icon { font-size: 34px; margin-bottom: 14px; }
.value-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.value-card p { font-size: 13px; color: var(--text-2); }

/* ---------- 发展历程横向树状图 ---------- */
.growth-tree {
  position: relative;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  margin: 36px 0 16px;
}
.growth-tree::before {
  content: "";
  position: absolute;
  left: 4%; right: 4%;
  top: 50%;
  height: 3px;
  transform: translateY(-50%);
  background: var(--gradient);
  border-radius: 3px;
}
.gt-node {
  position: relative;
  flex: 1;
  min-width: 0;
  height: 230px;
  text-align: center;
  z-index: 1;
}
/* 树枝竖线 */
.gt-node::before {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  background: var(--primary);
  opacity: .35;
}
.gt-node.top::before { top: calc(50% - 32px); height: 32px; }
.gt-node.bottom::before { top: 50%; height: 32px; }
/* 节点圆点（落在主干线上） */
.gt-dot {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 15px; height: 15px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--primary);
  box-shadow: 0 0 0 4px rgba(37,99,235,.12);
}
/* 年份 + 描述卡片 */
.gt-card {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 180px;
  padding: 12px 12px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: all .25s;
}
.gt-card:hover {
  transform: translateX(-50%) translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--primary-light);
}
.gt-node.top .gt-card { bottom: calc(50% + 32px); }
.gt-node.bottom .gt-card { top: calc(50% + 32px); }
.gt-card .year {
  font-size: 20px; font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.gt-card p {
  font-size: 12.5px; color: var(--text-2);
  margin-top: 4px; line-height: 1.55;
}
/* 移动端：退化为左侧纵向时间线 */
@media (max-width: 768px) {
  .growth-tree { flex-direction: column; align-items: stretch; gap: 0; }
  .growth-tree::before {
    left: 8px; right: auto;
    top: 0; bottom: 0;
    width: 3px; height: auto;
    transform: none;
  }
  .gt-node {
    height: auto;
    padding: 18px 0 18px 40px;
    text-align: left;
  }
  .gt-node::before { display: none; }
  .gt-dot {
    left: 8px; top: 26px;
    transform: none;
  }
  .gt-card {
    position: static;
    transform: none;
    width: 100%; max-width: none;
    margin-left: 18px;
  }
  .gt-card:hover { transform: none; }
}

/* ---------- 客户案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; transition: all .25s; position: relative; overflow: hidden;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.case-card .case-cat {
  position: absolute; top: 20px; right: 20px; font-size: 11px; font-weight: 600;
  padding: 4px 12px; border-radius: 999px; background: rgba(37,99,235,.08); color: var(--primary);
}
.case-card .avatar {
  width: 56px; height: 56px; border-radius: 50%; background: var(--gradient); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 700; margin-bottom: 16px;
}
.case-card h4 { font-size: 18px; font-weight: 700; }
.case-card .role { font-size: 13px; color: var(--primary); font-weight: 600; margin: 2px 0 4px; }
.case-card .industry { font-size: 12.5px; color: var(--text-3); }
.case-card .path {
  margin: 14px 0; padding: 10px 14px; background: var(--bg); border-radius: 8px;
  font-size: 13px; font-weight: 600; color: var(--text); text-align: center;
}
.case-card .desc { font-size: 13.5px; color: var(--text-2); line-height: 1.7; }
.case-card .duration { margin-top: 14px; font-size: 12.5px; color: var(--text-3); border-top: 1px dashed var(--border); padding-top: 12px; }

/* ---------- FAQ 卡片网格 ---------- */
.faq-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: none;
  margin: 0;
}
.faq-item {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
  overflow: hidden; transition: all .2s; align-self: start;
}
.faq-item:hover { border-color: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.faq-item.open { border-color: var(--primary-light); box-shadow: var(--shadow-sm); }
.faq-q {
  width: 100%; text-align: left; background: none; padding: 18px; font-size: 15px; font-weight: 600;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; color: var(--text); line-height: 1.5;
}
.faq-q .faq-icon { font-size: 20px; color: var(--primary); flex-shrink: 0; transition: transform .2s; line-height: 1.4; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a-inner { padding: 0 18px 18px; font-size: 13.5px; color: var(--text-2); line-height: 1.7; }
@media (max-width: 960px) { .faq-list { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .faq-list { grid-template-columns: 1fr; } }

/* ---------- 文章标签 ---------- */
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0; }
.article-tags .atag {
  font-size: 12.5px; padding: 5px 14px; border-radius: 999px;
  background: rgba(37,99,235,.08); color: var(--primary); font-weight: 500;
}

/* ---------- 文章地理坐标卡片 ---------- */
.article-location {
  margin-top: 24px; padding: 16px 20px; border-radius: var(--radius-sm);
  background: #f0fdfa; border: 1px solid #99f6e4; display: flex; align-items: center; gap: 14px;
}
.article-location .loc-icon { font-size: 24px; }
.article-location .loc-text { font-size: 14px; color: var(--text-2); }
.article-location .loc-text b { color: var(--text); }
.article-location .loc-coord { font-size: 12px; color: var(--text-3); margin-top: 2px; }

/* ---------- 服务详情（核心业务页） ---------- */
.service-block { margin-bottom: 40px; }
.service-block .sv-head { display: flex; align-items: center; gap: 16px; margin-bottom: 16px; }
.service-block .sv-icon {
  width: 54px; height: 54px; border-radius: 14px; background: rgba(37,99,235,.08); color: var(--primary);
  display: flex; align-items: center; justify-content: center; font-size: 26px;
}
.service-block h3 { font-size: 24px; font-weight: 800; }
.service-block .sv-tagline { color: var(--primary); font-weight: 600; font-size: 14px; }
.adv-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 16px; }
.adv-list li {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px 18px; font-size: 14px; color: var(--text-2); display: flex; align-items: center; gap: 10px;
}
.adv-list li::before { content: "✓"; color: var(--accent); font-weight: 700; }
.meta-row { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 20px; font-size: 13px; color: var(--text-3); }
.meta-row b { color: var(--text-2); }

@media (max-width: 960px) {
  .values-grid, .case-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .values-grid, .case-grid, .adv-list { grid-template-columns: 1fr; }
}

/* ---------- FAQ 详情大字样式 ---------- */
.faq-hero {
  background: linear-gradient(135deg, #f59e0b 0%, #14b8a6 100%);
  color: #fff; padding: 56px 0 60px;
}
.faq-hero .faq-hero-badge {
  display: inline-block; background: rgba(255,255,255,.18); border: 1px solid rgba(255,255,255,.3);
  padding: 5px 16px; border-radius: 999px; font-size: 13px; margin-bottom: 16px;
}
.faq-hero h1 { font-size: 34px; font-weight: 800; line-height: 1.4; max-width: 880px; }
.faq-hero .meta { margin-top: 14px; font-size: 14px; opacity: .9; display: flex; gap: 18px; flex-wrap: wrap; }
.faq-content { background: linear-gradient(135deg, #fffbeb 0%, #fff 60%); border-color: #fde68a; }
.faq-content .faq-answer p { font-size: 16px; line-height: 1.9; }
.faq-content .faq-answer h2 { color: var(--primary); }