/* ==========================================================================
   华纳万宝路公司客服 · 企业官网主样式
   优化方向：单文件、无外部字体、无框架依赖，首屏关键CSS已内联至HTML
   ========================================================================== */

/* ---------- 设计变量 ---------- */
:root {
  --brand: #0d2a4d;
  --brand-dark: #081c36;
  --brand-light: #1b4372;
  --accent: #c8102e;
  --accent-dark: #9c0c24;
  --gold: #c9a227;
  --ink: #1c2430;
  --ink-2: #3d4858;
  --ink-3: #6b7686;
  --line: #e3e8ef;
  --bg: #ffffff;
  --bg-soft: #f5f8fb;
  --bg-navy: #0d2a4d;
  --radius: 6px;
  --shadow: 0 2px 14px rgba(13, 42, 77, .07);
  --shadow-lg: 0 8px 30px rgba(13, 42, 77, .12);
  --maxw: 1200px;
  --ff: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans CN", sans-serif;
}

/* ---------- 基础重置 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 86px;
}

body {
  font-family: var(--ff);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
  background: var(--bg);
  overflow-x: hidden;
}

img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; transition: color .18s; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }

h1, h2, h3, h4, h5, h6 {
  color: var(--ink);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -.2px;
}

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- 无障碍隐藏（仅视觉隐藏，内容仍被搜索引擎读取） ---------- */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ==========================================================================
   顶部导航
   ========================================================================== */
.topbar {
  background: var(--brand-dark);
  color: #c6d3e2;
  font-size: 13px;
  line-height: 1.6;
}

.topbar .container {
  display: flex; justify-content: space-between; align-items: center;
  min-height: 38px; gap: 12px; flex-wrap: wrap;
}

.topbar a:hover { color: #fff; }
.topbar-tel { font-weight: 700; color: #fff; letter-spacing: .4px; }
.topbar-tel em { font-style: normal; color: var(--gold); margin-right: 4px; }

.site-head {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(180%) blur(8px);
}

.head-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; min-height: 72px;
}

.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }

.brand-mark {
  width: 42px; height: 42px; border-radius: 5px;
  background: linear-gradient(145deg, var(--brand-light), var(--brand-dark));
  color: #fff; font-weight: 700; font-size: 15px; line-height: 42px;
  text-align: center; letter-spacing: .5px; flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(13, 42, 77, .22);
}

.brand-txt strong {
  display: block; font-size: 18px; color: var(--brand); letter-spacing: .3px;
}

.brand-txt span { display: block; font-size: 11.5px; color: var(--ink-3); letter-spacing: 1.6px; text-transform: uppercase; }

.nav { display: flex; align-items: center; gap: 4px; }

.nav a {
  padding: 8px 15px; border-radius: var(--radius);
  font-size: 14.5px; color: var(--ink-2); font-weight: 500;
}

.nav a:hover, .nav a.on { background: #eef3f9; color: var(--brand); }

.head-cta { display: flex; align-items: center; gap: 10px; }

.btn-tel {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--accent); color: #fff;
  padding: 10px 18px; border-radius: var(--radius);
  font-size: 14.5px; font-weight: 700; white-space: nowrap;
  box-shadow: 0 3px 12px rgba(200, 16, 46, .26);
}

.btn-tel:hover { background: var(--accent-dark); color: #fff; }

/* 汉堡按钮（移动端） */
.nav-toggle {
  display: none; width: 42px; height: 42px; border-radius: var(--radius);
  background: var(--brand); position: relative; flex-shrink: 0;
}

.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  position: absolute; left: 50%; width: 20px; height: 2px;
  background: #fff; margin-left: -10px; content: ""; transition: .25s;
}

.nav-toggle span { top: 20px; }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle.act span { background: transparent; }
.nav-toggle.act span::before { top: 0; transform: rotate(45deg); }
.nav-toggle.act span::after { top: 0; transform: rotate(-45deg); }

/* ==========================================================================
   首屏 Hero
   ========================================================================== */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1100px 460px at 82% -10%, #1b4372 0%, rgba(27, 67, 114, 0) 62%),
    linear-gradient(155deg, #0d2a4d 0%, #081c36 58%, #061529 100%);
  color: #fff; padding: 66px 0 74px;
}

.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .028) 1px, transparent 1px);
  background-size: 46px 46px; pointer-events: none;
}

.hero .container { position: relative; z-index: 2; }

.hero-grid {
  display: grid; grid-template-columns: 1.08fr .92fr;
  gap: 52px; align-items: center;
}

.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, .09); border: 1px solid rgba(255, 255, 255, .17);
  color: #e4ecf6; font-size: 13px; padding: 6px 15px;
  border-radius: 100px; margin-bottom: 22px;
}

.hero-tag i {
  width: 6px; height: 6px; border-radius: 50%; background: #4ade80;
  box-shadow: 0 0 0 3px rgba(74, 222, 128, .2); animation: pulse 1.9s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .35; }
}

.hero h1 {
  color: #fff; font-size: 40px; line-height: 1.3;
  letter-spacing: -.5px; margin-bottom: 8px;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(96deg, #ffd76a, var(--gold));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.hero-sub {
  font-size: 19px; color: var(--gold); font-weight: 700;
  letter-spacing: .3px; margin-bottom: 18px;
}

.hero-lead { font-size: 15.5px; color: #b9c9dc; margin-bottom: 30px; max-width: 560px; }

.hero-lead b { color: #fff; font-weight: 600; }

.hero-btns { display: flex; gap: 13px; flex-wrap: wrap; margin-bottom: 34px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: var(--radius);
  font-size: 15px; font-weight: 700; transition: .2s;
}

.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 16px rgba(200, 16, 46, .32); }
.btn-primary:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); }
.btn-ghost { background: rgba(255, 255, 255, .1); color: #fff; border: 1px solid rgba(255, 255, 255, .28); }
.btn-ghost:hover { background: rgba(255, 255, 255, .19); color: #fff; }

/* 首屏快捷联系条 */
.hero-quick {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 12px; max-width: 560px;
}

.qcard {
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .15);
  border-radius: var(--radius); padding: 13px 15px;
  backdrop-filter: blur(4px);
}

.qcard b {
  display: block; font-size: 11.5px; color: #9fb4cb; font-weight: 500;
  letter-spacing: .5px; margin-bottom: 3px;
}

.qcard strong {
  display: block; font-size: 16px; color: #fff; font-weight: 700;
  letter-spacing: .6px; white-space: nowrap;
}

.hero-figure { position: relative; }

.hero-figure img {
  width: 100%; border-radius: 8px; box-shadow: 0 18px 48px rgba(0, 0, 0, .42);
}

.hero-badge {
  position: absolute; left: -14px; bottom: 22px;
  background: #fff; color: var(--ink); border-radius: var(--radius);
  padding: 15px 20px; box-shadow: var(--shadow-lg); min-width: 176px;
}

.hero-badge b { display: block; font-size: 27px; color: var(--accent); line-height: 1.1; }
.hero-badge span { font-size: 12.5px; color: var(--ink-3); }

/* ==========================================================================
   通用区块
   ========================================================================== */
.section { padding: 68px 0; }
.section-soft { background: var(--bg-soft); }

.sec-head { text-align: center; margin-bottom: 46px; }

.sec-eyebrow {
  display: inline-block; font-size: 12.5px; font-weight: 700;
  color: var(--accent); letter-spacing: 2.4px; text-transform: uppercase;
  margin-bottom: 11px;
}

.sec-head h2 {
  font-size: 30px; letter-spacing: -.4px; margin-bottom: 13px;
}

.sec-head p { color: var(--ink-3); font-size: 15px; max-width: 700px; margin: 0 auto; }

/* ---------- 统计条 ---------- */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; margin-top: 44px;
}

.stat { background: #fff; padding: 26px 18px; text-align: center; }
.stat b { display: block; font-size: 30px; color: var(--brand); line-height: 1.2; font-weight: 700; }
.stat b i { font-style: normal; font-size: 15px; color: var(--accent); }
.stat span { font-size: 13.5px; color: var(--ink-3); }

/* ---------- 优势卡片 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px 30px; transition: .24s; height: 100%;
}

.card:hover { border-color: #c3d3e5; box-shadow: var(--shadow-lg); transform: translateY(-3px); }

.card-ico {
  width: 46px; height: 46px; border-radius: var(--radius);
  background: linear-gradient(145deg, #eaf1f9, #dbe7f5);
  color: var(--brand); font-size: 20px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}

.card h3 { font-size: 18px; margin-bottom: 9px; }
.card p { font-size: 14.2px; color: var(--ink-3); }

.card h5 {
  display: inline-block; margin-top: 13px; padding: 3px 11px;
  background: #fdf1f3; color: var(--accent); border-radius: 100px;
  font-size: 12px; font-weight: 600;
}

/* ---------- 服务项目列表 ---------- */
.svc-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }

.svc {
  display: flex; gap: 17px; background: #fff;
  border: 1px solid var(--line); border-left: 3px solid var(--brand);
  border-radius: var(--radius); padding: 23px 24px; transition: .22s;
}

.svc:hover { border-left-color: var(--accent); box-shadow: var(--shadow); transform: translateX(3px); }

.svc-num {
  font-size: 26px; font-weight: 700; color: #dfe7f1; line-height: 1;
  flex-shrink: 0; width: 44px; font-family: Georgia, serif;
}

.svc h3 { font-size: 16.5px; margin-bottom: 7px; }
.svc p { font-size: 13.8px; color: var(--ink-3); }

/* ---------- 图集 ---------- */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

.gal-item {
  position: relative; overflow: hidden; border-radius: var(--radius);
  background: var(--brand-dark); aspect-ratio: 4 / 3;
}

.gal-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.gal-item:hover img { transform: scale(1.07); }

.gal-item figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: linear-gradient(transparent, rgba(6, 21, 41, .9));
  color: #fff; padding: 26px 14px 12px; font-size: 13.5px; font-weight: 600;
}

/* ---------- 关键词区块（JS 一次性注入，幂等保护） ---------- */
.kw-panel {
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px 28px; margin-bottom: 34px;
}

.kw-panel:empty { display: none; }

.kw-group { margin-bottom: 18px; }
.kw-group:last-child { margin-bottom: 0; }

.kw-t {
  font-size: 14px; color: var(--brand); margin-bottom: 10px;
  display: flex; align-items: center; gap: 8px;
}

.kw-t::before { content: ""; width: 3px; height: 13px; background: var(--accent); border-radius: 2px; }

.kw-l { display: flex; flex-wrap: wrap; gap: 8px; }

.kw-l a {
  font-size: 13px; color: var(--ink-2); background: #fff;
  border: 1px solid var(--line); padding: 5px 13px; border-radius: 100px;
  transition: .18s;
}

.kw-l a:hover { background: var(--brand); color: #fff; border-color: var(--brand); }

/* ---------- 关于我们 ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 46px; align-items: center; }

.about-media { position: relative; }
.about-media img { border-radius: var(--radius); box-shadow: var(--shadow-lg); width: 100%; }

.about-exp {
  position: absolute; right: -16px; top: 26px; background: var(--brand);
  color: #fff; padding: 17px 22px; border-radius: var(--radius);
  text-align: center; box-shadow: var(--shadow-lg);
}

.about-exp b { display: block; font-size: 26px; color: var(--gold); line-height: 1.1; }
.about-exp span { font-size: 12px; color: #c3d4e6; }

.about-body h2 { font-size: 28px; margin-bottom: 8px; }

.about-body h5 {
  font-size: 13px; color: var(--ink-3); font-weight: 500;
  padding-bottom: 14px; margin-bottom: 18px; border-bottom: 1px dashed var(--line);
}

.about-body p { margin-bottom: 15px; font-size: 14.6px; }
.about-body p b { color: var(--ink); font-weight: 600; }

.about-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 22px; }

.about-points li {
  font-size: 14px; color: var(--ink-2); padding-left: 26px; position: relative;
}

.about-points li::before {
  content: "✓"; position: absolute; left: 0; top: 1px;
  width: 17px; height: 17px; border-radius: 50%; background: #e8f5ed;
  color: #17914f; font-size: 10px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}

/* ---------- 流程时间轴 ---------- */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; position: relative; }

.flow::before {
  content: ""; position: absolute; top: 25px; left: 10%; right: 10%;
  height: 2px; background: var(--line); z-index: 0;
}

.flow-step { text-align: center; position: relative; z-index: 1; padding: 0 8px; }

.flow-dot {
  width: 50px; height: 50px; border-radius: 50%; background: #fff;
  border: 2px solid var(--brand); color: var(--brand);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 17px; margin: 0 auto 16px;
  box-shadow: 0 0 0 6px var(--bg-soft);
}

.flow-step h3 { font-size: 16px; margin-bottom: 7px; }
.flow-step p { font-size: 13.5px; color: var(--ink-3); }

/* ---------- 文章列表 ---------- */
.post {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: .24s; height: 100%;
}

.post:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); border-color: #c3d3e5; }

.post-thumb { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--brand-dark); }
.post-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.post:hover .post-thumb img { transform: scale(1.06); }

.post-cat {
  position: absolute; left: 12px; top: 12px; background: rgba(200, 16, 46, .94);
  color: #fff; font-size: 12px; padding: 3px 11px; border-radius: 100px; font-weight: 600;
}

.post-body { padding: 21px 22px 24px; display: flex; flex-direction: column; flex: 1; }

.post-meta {
  font-size: 12.5px; color: var(--ink-3); display: flex; gap: 14px;
  flex-wrap: wrap; margin-bottom: 10px;
}

.post-body h3 { font-size: 17px; margin-bottom: 10px; line-height: 1.5; }
.post-body h3 a:hover { color: var(--accent); }
.post-body p { font-size: 13.8px; color: var(--ink-3); margin-bottom: 15px; }

.post-more {
  margin-top: auto; font-size: 13.5px; color: var(--accent); font-weight: 600;
}

.post-more:hover { color: var(--accent-dark); }

/* ---------- 文章详情排版 ---------- */
.article { max-width: 860px; margin: 0 auto; }

.article-head { text-align: center; padding-bottom: 26px; border-bottom: 1px solid var(--line); margin-bottom: 30px; }
.article-head h1 { font-size: 30px; margin-bottom: 12px; }
.article-meta { font-size: 13px; color: var(--ink-3); display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }

.article h2 { font-size: 21px; margin: 32px 0 13px; padding-left: 12px; border-left: 4px solid var(--accent); }
.article h3 { font-size: 17.5px; margin: 26px 0 11px; color: var(--brand); }
.article h5 { font-size: 14px; color: var(--ink-3); font-weight: 500; margin: 18px 0 10px; }
.article p { margin-bottom: 15px; font-size: 15px; }
.article ul { margin: 0 0 18px 4px; }
.article ul li { padding-left: 20px; position: relative; margin-bottom: 8px; font-size: 14.6px; }
.article ul li::before { content: "·"; position: absolute; left: 6px; font-weight: 700; color: var(--accent); font-size: 18px; line-height: 1.3; }
.article blockquote {
  background: var(--bg-soft); border-left: 4px solid var(--brand);
  padding: 16px 20px; margin: 20px 0; font-size: 14.6px; color: var(--ink-2);
}

.article-call {
  background: linear-gradient(140deg, var(--brand), var(--brand-dark));
  color: #fff; border-radius: var(--radius); padding: 24px 26px;
  margin: 28px 0; text-align: center;
}

.article-call b { display: block; font-size: 14px; color: var(--gold); margin-bottom: 5px; }
.article-call strong { font-size: 25px; letter-spacing: 1px; display: block; margin-bottom: 4px; }
.article-call span { font-size: 13.5px; color: #b9c9dc; }

.tag-row { display: flex; gap: 9px; flex-wrap: wrap; margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--line); }

.tag-row a {
  font-size: 12.5px; color: var(--ink-3); background: var(--bg-soft);
  padding: 5px 13px; border-radius: 100px;
}

.tag-row a:hover { background: var(--brand); color: #fff; }

.article-nav {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  margin-top: 30px; padding-top: 26px; border-top: 1px solid var(--line);
}

.article-nav a {
  font-size: 13.8px; color: var(--ink-2); background: var(--bg-soft);
  padding: 14px 17px; border-radius: var(--radius);
}

.article-nav a:hover { color: var(--accent); background: #fdf1f3; }
.article-nav a.next { text-align: right; }

/* ---------- FAQ ---------- */
.faq { max-width: 880px; margin: 0 auto; }

.faq details {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  margin-bottom: 12px; overflow: hidden; transition: .2s;
}

.faq details[open] { border-color: #c3d3e5; box-shadow: var(--shadow); }

.faq summary {
  padding: 17px 46px 17px 22px; font-size: 15.5px; font-weight: 600;
  color: var(--ink); cursor: pointer; position: relative; list-style: none;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+"; position: absolute; right: 20px; top: 50%;
  transform: translateY(-50%); font-size: 21px; color: var(--accent); font-weight: 400;
}

.faq details[open] summary::after { content: "−"; }
.faq summary:hover { color: var(--accent); }

.faq .faq-a { padding: 0 22px 19px; font-size: 14.4px; color: var(--ink-2); }
.faq .faq-a b { color: var(--accent); font-weight: 600; }

/* ---------- 联系方式 ---------- */
.contact-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; }

.contact-card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 32px 30px;
}

.contact-card h3 { font-size: 20px; margin-bottom: 8px; }
.contact-card h5 { font-size: 13.5px; color: var(--ink-3); font-weight: 500; margin-bottom: 24px; }

.contact-row {
  display: flex; align-items: center; gap: 15px;
  padding: 15px 0; border-bottom: 1px dashed var(--line);
}

.contact-row:last-child { border-bottom: 0; padding-bottom: 0; }

.cr-ico {
  width: 42px; height: 42px; border-radius: var(--radius); flex-shrink: 0;
  background: #eaf1f9; color: var(--brand);
  display: flex; align-items: center; justify-content: center;
  font-size: 17px; font-weight: 700;
}

.cr-txt { flex: 1; min-width: 0; }
.cr-txt b { display: block; font-size: 12.5px; color: var(--ink-3); font-weight: 500; margin-bottom: 1px; }
.cr-txt strong { font-size: 19px; color: var(--ink); letter-spacing: .6px; font-weight: 700; }
.cr-txt strong.sm { font-size: 16px; }

.copy-btn {
  display: inline-flex; align-items: center; gap: 5px;
  border: 1px solid var(--brand); color: var(--brand);
  padding: 7px 14px; border-radius: var(--radius);
  font-size: 13px; font-weight: 600; background: #fff; flex-shrink: 0;
  transition: .18s;
}

.copy-btn:hover { background: var(--brand); color: #fff; }
.copy-btn.done { background: #17914f; border-color: #17914f; color: #fff; }

.contact-side {
  background: linear-gradient(150deg, var(--brand-light), var(--brand-dark));
  color: #fff; border-radius: var(--radius); padding: 32px 30px;
  display: flex; flex-direction: column;
}

.contact-side h3 { color: #fff; font-size: 19px; margin-bottom: 10px; }
.contact-side > p { color: #b9c9dc; font-size: 14px; margin-bottom: 20px; }

.cs-item {
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius); padding: 13px 16px; margin-bottom: 10px;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}

.cs-item div { min-width: 0; }
.cs-item b { display: block; font-size: 12px; color: #9fb4cb; font-weight: 500; margin-bottom: 2px; }
.cs-item strong { font-size: 15.5px; letter-spacing: .4px; }

.cs-item a, .cs-item button {
  background: rgba(255, 255, 255, .14); color: #fff;
  padding: 6px 13px; border-radius: var(--radius); font-size: 12.5px;
  font-weight: 600; white-space: nowrap; flex-shrink: 0; border: 1px solid rgba(255, 255, 255, .2);
  display: inline-flex; align-items: center; gap: 5px;
}

.cs-item a:hover, .cs-item button:hover { background: var(--gold); color: #1a1200; border-color: var(--gold); }
.cs-item button.done { background: #17914f; border-color: #17914f; color: #fff; }

.site-btn {
  margin-top: auto; background: var(--gold); color: #1a1200;
  text-align: center; padding: 14px; border-radius: var(--radius);
  font-weight: 700; font-size: 15.5px; display: block;
  box-shadow: 0 4px 16px rgba(201, 162, 39, .3);
}

.site-btn:hover { background: #dcb433; color: #1a1200; }

/* ==========================================================================
   页脚 + 网站地图
   ========================================================================== */
.site-foot { background: var(--brand-dark); color: #9fb0c4; padding: 52px 0 0; font-size: 13.5px; }

.foot-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 34px; padding-bottom: 38px; }

.foot-brand .brand-txt strong { color: #fff; }
.foot-brand .brand-txt span { color: var(--gold); }
.foot-brand p { margin-top: 14px; line-height: 1.9; max-width: 330px; }

.foot-col h3 { color: #fff; font-size: 15px; margin-bottom: 15px; position: relative; padding-bottom: 10px; }
.foot-col h3::after { content: ""; position: absolute; left: 0; bottom: 0; width: 24px; height: 2px; background: var(--gold); }
.foot-col li { margin-bottom: 8px; }
.foot-col a { color: #9fb0c4; font-size: 13.5px; }
.foot-col a:hover { color: #fff; padding-left: 4px; }

.foot-contact li { margin-bottom: 9px; color: #c3d4e6; }
.foot-contact b { color: var(--gold); font-weight: 600; }
.foot-contact .ftel { font-size: 18px; color: #fff; font-weight: 700; letter-spacing: .5px; }

/* 网站地图区块 */
.sitemap-box {
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--radius); padding: 26px 28px; margin-bottom: 34px;
}

.sitemap-box h3 {
  color: #fff; font-size: 16px; margin-bottom: 5px;
  display: flex; align-items: center; gap: 9px;
}

.sitemap-box h3::before { content: ""; width: 4px; height: 15px; background: var(--gold); border-radius: 2px; }
.sitemap-box > p { font-size: 12.5px; color: #8b9db2; margin-bottom: 16px; }

.sitemap-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px 24px; }
.sitemap-grid a { font-size: 13px; color: #b9c9dc; display: block; }
.sitemap-grid a:hover { color: var(--gold); }

.sitemap-col-title {
  grid-column: 1 / -1; font-size: 13.5px; color: var(--gold);
  font-weight: 600; margin-top: 6px; letter-spacing: .5px;
}

.foot-bot {
  border-top: 1px solid rgba(255, 255, 255, .1); padding: 20px 0;
  font-size: 12.5px; color: #7f90a6; display: flex;
  justify-content: space-between; gap: 14px; flex-wrap: wrap;
}

.foot-bot a { color: #7f90a6; }
.foot-bot a:hover { color: #fff; }

/* ==========================================================================
   移动端适配
   ========================================================================== */
@media (max-width: 1024px) {
  .hero h1 { font-size: 33px; }
  .hero-grid { gap: 34px; grid-template-columns: 1fr 1fr; }
  .foot-top { grid-template-columns: 1fr 1fr; gap: 28px; }
  .flow { grid-template-columns: repeat(3, 1fr); gap: 26px 0; }
  .flow::before { display: none; }
}

@media (max-width: 860px) {
  .nav {
    position: fixed; inset: 0 0 auto 0; top: 0;
    background: #fff; flex-direction: column; align-items: stretch;
    padding: 84px 20px 26px; gap: 2px; box-shadow: 0 10px 30px rgba(0, 0, 0, .13);
    transform: translateX(-100%); transition: transform .26s ease; z-index: 99;
    max-height: 100vh; overflow-y: auto;
  }
  .nav.open { transform: translateX(0); }
  .nav a { padding: 13px 14px; font-size: 16px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .nav-toggle { display: block; z-index: 101; }
  .site-head.nav-open .nav-toggle { position: fixed; top: 15px; right: 18px; }
  .site-head.nav-open::after {
    content: ""; position: fixed; inset: 0; background: rgba(8, 28, 54, .45); z-index: 98;
  }
  .hero-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero { padding: 44px 0 52px; }
  .hero h1 { font-size: 27px; }
  .hero-sub { font-size: 16.5px; }
  .hero-figure { order: -1; }
  .hero-badge { left: 10px; bottom: 10px; }
  .grid-3, .grid-2, .svc-list { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 46px 0; }
  .sec-head h2 { font-size: 24px; }
  .about-exp { right: 10px; top: 12px; }
  .sitemap-grid { grid-template-columns: repeat(2, 1fr); }
  .article-nav { grid-template-columns: 1fr; }
  .article-nav a.next { text-align: left; }
}

@media (max-width: 560px) {
  body { font-size: 14.5px; }
  .container { padding: 0 15px; }
  .topbar .container { justify-content: center; text-align: center; font-size: 12.5px; }
  .topbar-tel { font-size: 14px; }
  .brand-txt strong { font-size: 16px; }
  .hero-quick { grid-template-columns: 1fr; max-width: 100%; }
  .hero-btns .btn { flex: 1; justify-content: center; padding: 13px 16px; font-size: 14px; }
  .gallery { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr; }
  .about-points { grid-template-columns: 1fr; }
  .contact-card, .contact-side { padding: 24px 20px; }
  .cr-txt strong { font-size: 17px; }
  .article-head h1 { font-size: 22px; }
  .sitemap-grid { grid-template-columns: 1fr; }
  .foot-top { grid-template-columns: 1fr; }
}

/* 打印与深度链接优化 */
@media print {
  .site-head, .topbar, .hero-btns, .copy-btn, .nav { display: none !important; }
  body { color: #000; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}