/*
Theme Name: 三十六行网络 GEO 主题
Theme URI: https://www.36hang.cc
Author: 36hang
Author URI: https://www.36hang.cc
Description: 合肥三十六行网络科技有限公司定制 GEO 优化主题。面向 AI 搜索引擎（DeepSeek/豆包等）结构化抓取设计，内置 Schema 结构化数据、城市服务中心矩阵、FAQ 知识库、博客系统。
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: th36
*/

/* ============================================================
   1. 基础变量与 Reset
   ============================================================ */
:root {
  --primary: #0d9488;
  --primary-dark: #0f766e;
  --primary-light: #ccfbf1;
  --navy: #0f172a;
  --navy-light: #1e293b;
  --ink: #1e293b;
  --gray: #64748b;
  --gray-light: #94a3b8;
  --bg: #f8fafc;
  --bg-soft: #f1f5f9;
  --white: #ffffff;
  --border: #e2e8f0;
  --red: #ef4444;
  --orange: #f59e0b;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
}

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

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

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary-dark); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { color: var(--navy); line-height: 1.3; font-weight: 700; }
h1 { font-size: clamp(26px, 4vw, 40px); }
h2 { font-size: clamp(22px, 3vw, 32px); }
h3 { font-size: 20px; }
h4 { font-size: 17px; }

.container { width: min(1200px, 92%); margin: 0 auto; }

/* 通用区块间距 */
.section { padding: 64px 0; }
.section--soft { background: var(--bg); }
.section--navy { background: var(--navy); color: #e2e8f0; }
.section--navy h2, .section--navy h3 { color: #fff; }

.section-head { text-align: center; max-width: 760px; margin: 0 auto 44px; }
.section-head .eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600; color: var(--primary);
  background: var(--primary-light); padding: 4px 14px; border-radius: 999px; margin-bottom: 14px;
  letter-spacing: .05em;
}
.section-head p { color: var(--gray); margin-top: 12px; }

/* ============================================================
   2. 顶部栏与导航
   ============================================================ */
.topbar {
  background: var(--navy); color: #cbd5e1; font-size: 13px; padding: 8px 0;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.topbar a { color: #e2e8f0; }
.topbar a:hover { color: #5eead4; }
.topbar .tb-cities { display: flex; gap: 14px; flex-wrap: wrap; }
.topbar .tb-right { display: flex; gap: 18px; align-items: center; white-space: nowrap; }

.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }

.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 44px; width: auto; }
.brand-text { line-height: 1.2; }
.brand-text strong { display: block; font-size: 19px; color: var(--navy); letter-spacing: .02em; }
.brand-text span { font-size: 12px; color: var(--gray); }

.brand-logo { display: inline-flex; align-items: center; }
.brand-logo-img { display: block; height: 56px; width: auto; max-width: 240px; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 8px 14px; font-size: 15px; font-weight: 500; color: var(--ink); border-radius: 8px;
}
.main-nav a:hover { color: var(--primary); background: var(--bg-soft); }
.main-nav .current-menu-item > a, .main-nav a.current { color: var(--primary-dark); font-weight: 600; }

.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-phone { font-size: 14px; color: var(--gray); display: none; }
.nav-phone strong { display: block; color: var(--navy); font-size: 17px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px; border-radius: 999px; font-weight: 600; font-size: 15px;
  border: 2px solid transparent; cursor: pointer; transition: all .25s; line-height: 1.4;
}
.btn--primary { background: var(--primary); color: #fff; }
.btn--primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow); }
.btn--outline { border-color: rgba(255,255,255,.4); color: #fff; }
.btn--outline:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,.08); }
.btn--ghost { border-color: var(--primary); color: var(--primary-dark); }
.btn--ghost:hover { background: var(--primary); color: #fff; }
.btn--sm { padding: 8px 18px; font-size: 14px; }

/* 移动端菜单 */
.nav-toggle { display: none; background: none; border: none; font-size: 26px; color: var(--navy); cursor: pointer; }

@media (max-width: 980px) {
  .main-nav {
    position: fixed; inset: 72px 0 auto 0; background: #fff; flex-direction: column;
    padding: 16px; gap: 2px; border-bottom: 1px solid var(--border);
    transform: translateY(-120%); transition: transform .3s; box-shadow: var(--shadow-lg);
  }
  .main-nav.open { transform: translateY(0); }
  .main-nav a { width: 100%; padding: 12px 16px; }
  .nav-toggle { display: block; }
  .nav-phone { display: block; }
  .topbar .tb-cities { display: none; }
}

/* ============================================================
   3. Hero 首屏
   ============================================================ */
.hero {
  position: relative; color: #fff;
  background:
    radial-gradient(1000px 500px at 85% -10%, rgba(13,148,136,.35), transparent 60%),
    radial-gradient(800px 400px at -10% 110%, rgba(14,165,233,.2), transparent 60%),
    linear-gradient(135deg, #0f172a 0%, #0f2f3a 55%, #0d9488 130%);
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%23ffffff' stroke-opacity='0.05'%3E%3Cpath d='M0 30h60M30 0v60'/%3E%3C/g%3E%3C/svg%3E");
}
.hero .container { position: relative; z-index: 2; padding: 88px 0 76px; display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; font-size: 13px; font-weight: 600;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.18); border-radius: 999px;
  color: #99f6e4; margin-bottom: 22px;
}
.hero h1 { color: #fff; font-size: clamp(28px, 4.2vw, 46px); letter-spacing: -.01em; }
.hero h1 .grad {
  background: linear-gradient(90deg, #2dd4bf, #38bdf8);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero p.lead { margin-top: 18px; font-size: 17px; color: #cbd5e1; max-width: 560px; }

.hero-certs { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.hero-certs .cert {
  display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 500;
  color: #e2e8f0; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14);
  padding: 6px 14px; border-radius: 8px;
}
.hero-certs .cert::before { content: "✓"; color: #2dd4bf; font-weight: 700; }

.hero-cta { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }

.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 42px; }
.hero-stats .stat { border-left: 2px solid rgba(45,212,191,.4); padding-left: 14px; }
.hero-stats .stat strong { display: block; font-size: 26px; color: #fff; }
.hero-stats .stat span { font-size: 13px; color: #94a3b8; }

/* Hero 右侧资质卡 */
.hero-card {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius-lg); padding: 28px; backdrop-filter: blur(6px);
}
.hero-card h3 { color: #fff; font-size: 18px; margin-bottom: 6px; }
.hero-card .hc-sub { font-size: 13px; color: #94a3b8; margin-bottom: 20px; }
.hero-card .badge-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.hero-card .badge-item {
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px; padding: 14px; text-align: center;
}
.hero-card .badge-item .bi-icon { font-size: 24px; margin-bottom: 6px; }
.hero-card .badge-item strong { display: block; font-size: 14px; color: #fff; }
.hero-card .badge-item span { font-size: 12px; color: #94a3b8; }
.hero-card .case-line {
  margin-top: 18px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12);
  font-size: 13.5px; color: #cbd5e1;
}
.hero-card .case-line strong { color: #5eead4; }

@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; padding: 56px 0 48px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   4. 信任条（认证资质横条）
   ============================================================ */
.trust-bar { border-bottom: 1px solid var(--border); background: #fff; }
.trust-bar .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding: 18px 0; }
.trust-bar .tb-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--gray); }
.trust-bar .tb-item strong { color: var(--navy); }
.trust-bar .tb-ico { font-size: 22px; }

/* ============================================================
   5. 服务矩阵
   ============================================================ */
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.service-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 26px; transition: all .3s; position: relative; overflow: hidden;
}
.service-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), #38bdf8); opacity: 0; transition: opacity .3s;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-card:hover::before { opacity: 1; }
.service-card .sc-icon {
  width: 54px; height: 54px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  font-size: 26px; background: var(--primary-light); margin-bottom: 18px;
}
.service-card h3 { font-size: 18px; margin-bottom: 10px; }
.service-card p { font-size: 14.5px; color: var(--gray); margin-bottom: 14px; }
.service-card ul { font-size: 13.5px; color: var(--gray); }
.service-card ul li { padding: 4px 0 4px 18px; position: relative; }
.service-card ul li::before { content: "›"; position: absolute; left: 4px; color: var(--primary); font-weight: 700; }
.service-card .sc-link { display: inline-block; margin-top: 14px; font-size: 14px; font-weight: 600; }

@media (max-width: 900px) {
  .service-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .service-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   6. 标杆案例
   ============================================================ */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.case-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: all .3s;
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.case-card .cc-body { padding: 24px; }
.case-card .cc-tag {
  display: inline-block; font-size: 12px; font-weight: 600; color: var(--primary-dark);
  background: var(--primary-light); padding: 3px 12px; border-radius: 999px; margin-bottom: 12px;
}
.case-card h3 { font-size: 17px; margin-bottom: 8px; }
.case-card p { font-size: 14px; color: var(--gray); }
.case-card .cc-metrics { display: flex; gap: 18px; margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--border); }
.case-card .cc-metrics .m { flex: 1; }
.case-card .cc-metrics .m strong { display: block; font-size: 20px; color: var(--primary-dark); }
.case-card .cc-metrics .m span { font-size: 12px; color: var(--gray-light); }

@media (max-width: 900px) {
  .case-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .case-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   7. 数据公示（可信度板块）
   ============================================================ */
.data-panel {
  background: linear-gradient(135deg, #0f172a, #134e4a); border-radius: var(--radius-lg);
  padding: 44px; color: #e2e8f0; position: relative; overflow: hidden;
}
.data-panel::before {
  content: ""; position: absolute; right: -80px; top: -80px; width: 260px; height: 260px;
  border-radius: 50%; background: radial-gradient(circle, rgba(45,212,191,.25), transparent 70%);
}
.data-panel h2 { color: #fff; }
.data-panel .dp-intro { max-width: 640px; color: #94a3b8; margin: 14px 0 30px; font-size: 15px; }
.data-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; position: relative; z-index: 2; }
.data-grid .d-item { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); border-radius: 12px; padding: 22px 18px; text-align: center; }
.data-grid .d-item strong { display: block; font-size: 30px; color: #2dd4bf; line-height: 1.2; }
.data-grid .d-item span { font-size: 13px; color: #94a3b8; }
.data-note { margin-top: 22px; font-size: 12.5px; color: #64748b; }

@media (max-width: 900px) {
  .data-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .data-panel { padding: 30px 22px; }
}

/* ============================================================
   8. 全国服务中心
   ============================================================ */
.city-hero-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.city-link-card {
  display: flex; align-items: center; gap: 14px; background: #fff; border: 1px solid var(--border);
  border-radius: 12px; padding: 18px 20px; transition: all .25s;
}
.city-link-card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-2px); }
.city-link-card .cl-icon {
  width: 46px; height: 46px; border-radius: 12px; background: var(--primary-light);
  display: flex; align-items: center; justify-content: center; font-size: 22px; flex-shrink: 0;
}
.city-link-card strong { display: block; color: var(--navy); font-size: 16px; }
.city-link-card span { font-size: 12.5px; color: var(--gray); }

@media (max-width: 900px) {
  .city-hero-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .city-hero-grid { grid-template-columns: 1fr; }
}

/* 城市聚合页 */
.city-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.city-item { display: block; text-align: center; padding: 22px 14px; background: #fff; border: 1px solid var(--border); border-radius: 12px; transition: all .25s; }
.city-item:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-2px); }
.city-item .ci-ico { font-size: 30px; margin-bottom: 8px; }
.city-item strong { display: block; color: var(--navy); font-size: 16px; }
.city-item span { font-size: 12.5px; color: var(--gray-light); }

@media (max-width: 900px) {
  .city-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   9. FAQ 手风琴
   ============================================================ */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: 12px; margin-bottom: 12px; overflow: hidden; }
.faq-item .fq-q {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 18px 22px; cursor: pointer; font-weight: 600; font-size: 16px; color: var(--navy);
}
.faq-item .fq-q .fq-marker { color: var(--primary); font-size: 20px; transition: transform .25s; flex-shrink: 0; }
.faq-item.open .fq-q .fq-marker { transform: rotate(45deg); }
.faq-item .fq-a { display: none; padding: 0 22px 20px; color: var(--gray); font-size: 15px; }
.faq-item.open .fq-a { display: block; }

/* ============================================================
   10. 博客卡片
   ============================================================ */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.post-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: all .3s; display: flex; flex-direction: column; }
.post-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.post-card .pc-thumb { aspect-ratio: 16/10; overflow: hidden; background: var(--bg-soft); }
.post-card .pc-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.post-card:hover .pc-thumb img { transform: scale(1.05); }
.post-card .pc-body { padding: 20px 22px; display: flex; flex-direction: column; flex: 1; }
.post-card .pc-meta { font-size: 12.5px; color: var(--gray-light); margin-bottom: 8px; }
.post-card h3 { font-size: 17px; line-height: 1.5; margin-bottom: 8px; }
.post-card h3 a { color: var(--navy); }
.post-card h3 a:hover { color: var(--primary); }
.post-card p { font-size: 14px; color: var(--gray); flex: 1; }
.post-card .pc-more { margin-top: 14px; font-size: 14px; font-weight: 600; }

@media (max-width: 900px) {
  .post-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .post-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   11. 联系我们 CTA
   ============================================================ */
.cta-band {
  background: linear-gradient(120deg, #0d9488, #0ea5e9); border-radius: var(--radius-lg);
  padding: 48px; text-align: center; color: #fff; position: relative; overflow: hidden;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.85); margin: 12px auto 26px; max-width: 560px; }
.cta-band .btn--light { background: #fff; color: var(--primary-dark); }
.cta-band .btn--light:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(0,0,0,.2); }
.cta-contacts { display: flex; justify-content: center; gap: 32px; margin-top: 26px; flex-wrap: wrap; font-size: 14px; }
.cta-contacts a { color: #fff; display: inline-flex; align-items: center; gap: 6px; }

/* ============================================================
   12. 页脚
   ============================================================ */
.site-footer { background: var(--navy); color: #94a3b8; padding: 56px 0 0; font-size: 14px; }
.site-footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 36px; padding-bottom: 40px; }
.footer-about p { margin: 14px 0 18px; line-height: 1.8; }
.footer-links a { display: block; padding: 4px 0; color: #94a3b8; }
.footer-links a:hover { color: #5eead4; }
.footer-contact li { padding: 5px 0; }
.footer-contact .fc-label { color: #64748b; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 18px 0; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; color: #64748b; }
.footer-bottom a { color: #94a3b8; }
.footer-bottom .footer-beian a { color: #94a3b8; }

.footer-about .footer-logo-img { display: block; margin-bottom: 14px; height: 40px; width: auto; }
.footer-wechat { margin-top: 16px; }
.footer-wechat img { display: block; width: 110px; height: 110px; border-radius: 8px; border: 1px solid rgba(255,255,255,.08); }
.footer-contact a { color: #94a3b8; }

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   13. 页面通用（面包屑/页面头）
   ============================================================ */
.th36-breadcrumb { background: var(--bg-soft); font-size: 13.5px; padding: 12px 0; color: var(--gray); }
.th36-breadcrumb a { color: var(--gray); }
.th36-breadcrumb a:hover { color: var(--primary-dark); }
.th36-breadcrumb .sep { margin: 0 8px; color: var(--gray-light); }
.th36-breadcrumb .current { color: var(--ink); font-weight: 500; }

.page-hero {
  background: linear-gradient(135deg, #0f172a, #134e4a); color: #fff; padding: 56px 0;
}
.page-hero h1 { color: #fff; }
.page-hero p { color: #94a3b8; margin-top: 10px; max-width: 700px; }

/* ============================================================
   14. 内容页排版
   ============================================================ */
.entry-content { max-width: 820px; margin: 0 auto; font-size: 16.5px; line-height: 1.9; }
.entry-content h2 { margin: 36px 0 16px; }
.entry-content h3 { margin: 28px 0 12px; }
.entry-content p { margin-bottom: 18px; color: #334155; }
.entry-content ul, .entry-content ol { margin: 0 0 18px 24px; list-style: disc; }
.entry-content ol { list-style: decimal; }
.entry-content li { margin-bottom: 8px; }
.entry-content img { border-radius: 10px; margin: 8px 0 18px; }
.entry-content blockquote { border-left: 4px solid var(--primary); background: var(--bg); padding: 16px 20px; border-radius: 0 10px 10px 0; margin-bottom: 18px; color: var(--gray); }
.entry-content table { width: 100%; border-collapse: collapse; margin-bottom: 20px; }
.entry-content th, .entry-content td { border: 1px solid var(--border); padding: 10px 14px; font-size: 14.5px; }
.entry-content th { background: var(--bg-soft); }

/* ============================================================
   15. 城市详情页
   ============================================================ */
.city-detail { display: grid; grid-template-columns: 1fr 380px; gap: 36px; align-items: start; }
.city-detail-main .city-cover { border-radius: var(--radius); margin-bottom: 26px; }
.city-info-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; position: sticky; top: 96px; }
.city-info-card h3 { margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.city-info-card ul li { display: flex; gap: 10px; padding: 8px 0; font-size: 14.5px; color: var(--gray); }
.city-info-card ul li strong { color: var(--navy); min-width: 64px; flex-shrink: 0; }
.city-info-card .btn { width: 100%; margin-top: 18px; }

@media (max-width: 900px) {
  .city-detail { grid-template-columns: 1fr; }
  .city-info-card { position: static; }
}

/* ============================================================
   16. 表格/列表通用
   ============================================================ */
.page-grid { display: grid; grid-template-columns: 1fr 300px; gap: 36px; align-items: start; }
.sidebar { position: sticky; top: 96px; }
.sidebar .widget { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; margin-bottom: 20px; }
.sidebar .widget h3 { font-size: 16px; margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.sidebar .widget a { display: block; padding: 6px 0; font-size: 14px; color: var(--gray); }
.sidebar .widget a:hover { color: var(--primary); }

@media (max-width: 900px) {
  .page-grid { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}

/* ============================================================
   17. 分页
   ============================================================ */
.pagination { display: flex; justify-content: center; gap: 8px; margin: 40px 0 0; }
.pagination .page-numbers {
  display: inline-flex; align-items: center; justify-content: center; min-width: 42px; height: 42px;
  border: 1px solid var(--border); border-radius: 10px; font-size: 14px; color: var(--gray);
  padding: 0 8px;
}
.pagination .page-numbers.current { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination .page-numbers:hover { border-color: var(--primary); color: var(--primary); }

/* ============================================================
   18. 表单
   ============================================================ */
.form-lead { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.form-lead h3 { margin-bottom: 18px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--navy); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 15px; font-family: var(--font); background: var(--bg);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(13,148,136,.12); background: #fff;
}
.form-tip { font-size: 12.5px; color: var(--gray-light); margin-top: 10px; }

.contact-wechat { padding: 10px 0 6px; }
.contact-wechat img { display: block; width: 180px; height: 180px; border-radius: 12px; border: 1px solid #e2e8f0; margin: 0 auto; box-shadow: 0 4px 16px rgba(0,0,0,.06); }
.contact-wechat .wechat-label { font-size: 14px; font-weight: 600; color: var(--navy); margin: 10px 0 4px; }
.contact-wechat .wechat-tip { font-size: 12.5px; color: var(--gray); line-height: 1.7; margin: 0; }

/* ============================================================
   19. 动画（GEO 友好：默认全部可见，JS 加载后才隐藏并渐入）
   ============================================================ */
/* 默认：所有内容直接可见（无 JS / 爬虫 / AI 抓取都能看到） */
.fade-up { opacity: 1; transform: none; }
/* 当 JS 标记了 .has-fadejs 时才进入动画模式 */
.has-fadejs .fade-up:not(.in) { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.has-fadejs .fade-up.in { opacity: 1; transform: none; }
/* 用户偏好减少动效：直接显示 */
@media (prefers-reduced-motion: reduce) {
  .has-fadejs .fade-up { opacity: 1 !important; transform: none !important; }
}

/* ============================================================
   20. 响应式微调
   ============================================================ */
@media (max-width: 620px) {
  .section { padding: 44px 0; }
  .btn { padding: 10px 20px; font-size: 14px; }
  .hero .container { padding: 44px 0 40px; }
  .case-card .cc-metrics { flex-wrap: wrap; }
}