/* ==========================================================================
   达聚网深圳站 全局样式
   设计语言：深色科技风（墨夜 + 青绿 + 鎏金），与杭州站（蓝白渐变）形成差异化
   设计原则：SEO/AI 收录优先（语义化 + 结构化数据），其次内容丰富与呈现
   ========================================================================== */

:root {
  --bg: #0b1220;            /* 墨夜底色 */
  --bg-2: #101b30;          /* 次级面板 */
  --bg-3: #16233c;          /* 卡片底 */
  --line: #223250;          /* 边框 */
  --text: #e8eef8;          /* 主文字 */
  --text-2: #a9b7cc;        /* 次级文字 */
  --muted: #7d8ca6;         /* 弱化文字 */
  --accent: #2dd4a7;        /* 青绿主色（深圳科技感） */
  --accent-2: #14b8a6;      /* 青绿深 */
  --gold: #e5b85c;          /* 鎏金点缀 */
  --gold-soft: rgba(229, 184, 92, .14);
  --accent-soft: rgba(45, 212, 167, .14);
  --radius: 14px;
  --shadow: 0 10px 32px rgba(0, 0, 0, .38);
  --shadow-lg: 0 18px 48px rgba(0, 0, 0, .5);
  --maxw: 1200px;
}

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

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

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(1100px 500px at 85% -10%, rgba(45,212,167,.08), transparent 60%),
    radial-gradient(900px 420px at -10% 20%, rgba(229,184,92,.06), transparent 55%);
  background-attachment: fixed;
  line-height: 1.8;
  font-size: 16px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--gold); text-decoration: none; }

img { max-width: 100%; height: auto; display: block; }

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

/* ---------- 顶栏 ---------- */
.site-header {
  background: rgba(11, 18, 32, .92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo {
  width: 44px; height: 44px; border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex; align-items: center; justify-content: center;
  color: #06231c; font-weight: 800; font-size: 21px; flex-shrink: 0;
  box-shadow: 0 0 20px rgba(45,212,167,.35);
}
.brand-name { font-size: 20px; font-weight: 700; color: var(--text); line-height: 1.2; }
.brand-sub { font-size: 12px; color: var(--muted); line-height: 1.2; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  color: var(--text-2);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  transition: background .15s, color .15s;
}
.main-nav a:hover { background: var(--accent-soft); color: var(--accent); }
.main-nav a.active { background: var(--accent); color: #06231c; font-weight: 700; }
.nav-home-link {
  border: 1px solid var(--gold);
  color: var(--gold) !important;
  white-space: nowrap;
}
.nav-home-link:hover { background: var(--gold-soft) !important; }

.nav-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; cursor: pointer; font-size: 18px; color: var(--text); }

/* ---------- 面包屑 ---------- */
.breadcrumb { background: var(--bg-2); border-bottom: 1px solid var(--line); }
.breadcrumb .container { padding: 10px 20px; font-size: 13px; color: var(--muted); overflow-x: auto; white-space: nowrap; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { margin: 0 8px; color: #3d4f70; }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(760px 420px at 82% 12%, rgba(45,212,167,.16), transparent 60%),
    radial-gradient(640px 380px at 12% 88%, rgba(229,184,92,.1), transparent 55%);
  padding: 88px 0 76px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(45,212,167,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45,212,167,.05) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(700px 420px at 70% 20%, #000 30%, transparent 75%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent-soft);
  border: 1px solid rgba(45,212,167,.4);
  color: var(--accent);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13.5px;
  font-weight: 600;
  margin-bottom: 22px;
}
.hero-eyebrow::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}
.hero h1 { font-size: 44px; font-weight: 800; line-height: 1.3; max-width: 780px; letter-spacing: .5px; }
.hero h1 .gold { color: var(--gold); }
.hero p.lead { font-size: 18px; margin-top: 18px; max-width: 740px; color: var(--text-2); }
.hero-badges { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 10px; }
.hero-badge {
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 18px;
  font-size: 14px;
  color: var(--text-2);
}
.hero-cta { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 14px; }

.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: transform .15s, box-shadow .15s, background .15s;
  text-decoration: none !important;
}
.btn-accent { background: var(--accent); color: #06231c; box-shadow: 0 6px 22px rgba(45,212,167,.3); }
.btn-accent:hover { background: #45e6bc; color: #06231c; transform: translateY(-2px); box-shadow: 0 10px 30px rgba(45,212,167,.42); }
.btn-outline { border: 1.5px solid rgba(45,212,167,.55); color: var(--accent); }
.btn-outline:hover { background: var(--accent-soft); }
.btn-gold { background: var(--gold); color: #2a1c03; }
.btn-gold:hover { background: #f0c878; color: #2a1c03; transform: translateY(-2px); box-shadow: 0 10px 28px rgba(229,184,92,.35); }

/* ---------- 数据条 ---------- */
.stats-bar { background: var(--bg-2); border-bottom: 1px solid var(--line); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  padding: 30px 0;
  gap: 12px;
}
.stat-item { text-align: center; }
.stat-num {
  font-size: 32px; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.stat-label { font-size: 13px; color: var(--muted); margin-top: 2px; }

/* ---------- 通用分区 ---------- */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { text-align: center; margin-bottom: 44px; }
.section-head h2 { font-size: 31px; font-weight: 800; letter-spacing: .3px; }
.section-head p { color: var(--text-2); margin-top: 10px; max-width: 700px; margin-left: auto; margin-right: auto; }
.section-head .tag {
  display: inline-block;
  background: var(--accent-soft);
  border: 1px solid rgba(45,212,167,.4);
  color: var(--accent);
  border-radius: 999px;
  padding: 4px 16px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 14px;
}

/* ---------- 卡片网格 ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 22px;
}
.card {
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform .18s, box-shadow .18s, border-color .18s;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent 70%);
  opacity: 0;
  transition: opacity .2s;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: rgba(45,212,167,.45); }
.card:hover::before { opacity: 1; }
.card-icon {
  width: 54px; height: 54px;
  border-radius: 14px;
  background: var(--accent-soft);
  border: 1px solid rgba(45,212,167,.35);
  display: flex; align-items: center; justify-content: center;
  font-size: 25px;
  margin-bottom: 16px;
}
.card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.card h3 a { color: var(--text); }
.card h3 a:hover { color: var(--accent); }
.card p { color: var(--text-2); font-size: 14.5px; flex-grow: 1; }
.card .card-link { margin-top: 16px; font-weight: 600; font-size: 14px; color: var(--accent); }
.card .card-link::after { content: " →"; }

/* ---------- 时间线 ---------- */
.timeline { max-width: 860px; margin: 0 auto; position: relative; padding-left: 36px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 12px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), transparent);
}
.tl-item { position: relative; padding-bottom: 28px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-dot {
  position: absolute;
  left: -36px; top: 4px;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--bg-3);
  border: 2px solid var(--accent);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 14px rgba(45,212,167,.35);
}
.tl-item h3 { font-size: 17.5px; font-weight: 700; }
.tl-item p { color: var(--text-2); font-size: 14.5px; margin-top: 4px; }

/* ---------- 表格 ---------- */
.data-table { width: 100%; border-collapse: collapse; background: var(--bg-3); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); font-size: 14.5px; }
.data-table th { background: linear-gradient(135deg, var(--accent-2), #0e9f8f); color: #eafffb; text-align: left; padding: 13px 16px; font-weight: 600; }
.data-table td { padding: 13px 16px; border-bottom: 1px solid var(--line); vertical-align: top; color: var(--text-2); }
.data-table tr:nth-child(even) td { background: rgba(255,255,255,.02); }
.data-table tr:last-child td { border-bottom: none; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.faq-item summary {
  padding: 17px 20px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 46px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute; right: 18px; top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  color: var(--accent);
  transition: transform .2s;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item .faq-body { padding: 0 20px 18px; color: var(--text-2); font-size: 14.5px; }

/* ---------- 文章 ---------- */
.article-list { display: flex; flex-direction: column; gap: 18px; }
.article-item {
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 26px;
  transition: box-shadow .18s, border-color .18s;
}
.article-item:hover { box-shadow: var(--shadow-lg); border-color: rgba(45,212,167,.4); }
.article-item h3 { font-size: 18.5px; font-weight: 700; }
.article-item h3 a { color: var(--text); }
.article-item h3 a:hover { color: var(--accent); }
.article-item .meta { font-size: 13px; color: var(--muted); margin: 7px 0 9px; }
.article-item p { color: var(--text-2); font-size: 14.5px; }

.prose { max-width: 860px; margin: 0 auto; }
.prose h2 { font-size: 25px; font-weight: 800; margin: 40px 0 16px; padding-left: 16px; border-left: 4px solid var(--accent); }
.prose h3 { font-size: 19.5px; font-weight: 700; margin: 30px 0 12px; }
.prose p { margin-bottom: 15px; color: var(--text-2); }
.prose ul, .prose ol { margin: 0 0 18px 24px; color: var(--text-2); }
.prose li { margin-bottom: 7px; }
.prose blockquote {
  border-left: 4px solid var(--gold);
  background: var(--gold-soft);
  padding: 15px 20px;
  border-radius: 0 12px 12px 0;
  margin: 20px 0;
  color: var(--text-2);
}
.prose .lead { font-size: 17.5px; color: var(--text); }

/* ---------- CTA ---------- */
.cta-banner {
  background: linear-gradient(135deg, rgba(45,212,167,.18), rgba(229,184,92,.12));
  border: 1px solid rgba(45,212,167,.45);
  border-radius: 18px;
  padding: 46px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.cta-banner h2 { font-size: 27px; font-weight: 800; }
.cta-banner p { color: var(--text-2); margin-top: 8px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #070d18; border-top: 1px solid var(--line); color: var(--text-2); padding: 56px 0 26px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 34px; margin-bottom: 34px; }
.site-footer h4 { color: var(--text); font-size: 16px; margin-bottom: 15px; position: relative; padding-bottom: 8px; }
.site-footer h4::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 26px; height: 2px;
  background: var(--accent);
}
.site-footer a { color: var(--text-2); }
.site-footer a:hover { color: var(--accent); }
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 9px; }
.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 22px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  line-height: 2.1;
}
.footer-bottom a { color: var(--muted); }
.footer-links { margin-top: 6px; display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 18px; }

/* ---------- 页面头部（内页） ---------- */
.page-head {
  background:
    radial-gradient(700px 380px at 80% 10%, rgba(45,212,167,.15), transparent 60%);
  border-bottom: 1px solid var(--line);
  padding: 56px 0;
  text-align: center;
}
.page-head h1 { font-size: 36px; font-weight: 800; }
.page-head p { color: var(--text-2); margin-top: 12px; max-width: 740px; margin-left: auto; margin-right: auto; }

/* ---------- 服务详情特色块 ---------- */
.highlight-box {
  background: var(--accent-soft);
  border: 1px solid rgba(45,212,167,.4);
  border-left: 4px solid var(--accent);
  border-radius: 0 12px 12px 0;
  padding: 18px 22px;
  margin: 22px 0;
}
.highlight-box p { color: var(--text); font-weight: 500; }

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 70px; left: 0; right: 0;
    background: var(--bg);
    flex-direction: column;
    align-items: stretch;
    padding: 14px 20px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 13px 10px; border-radius: 8px; }
  .nav-toggle { display: block; }
  .hero h1 { font-size: 31px; }
  .hero { padding: 60px 0 50px; }
  .section { padding: 52px 0; }
  .section-head h2 { font-size: 26px; }
  .cta-banner { padding: 30px 24px; }
  .page-head h1 { font-size: 28px; }
}