/* ============================================================
   达聚网 Dajunet 官网样式
   自包含 CSS，无外部依赖，可直接部署于宝塔面板静态站点
   ============================================================ */

:root {
  --c-primary: #0b2a55;
  --c-primary-deep: #071d3b;
  --c-blue: #1d5fbf;
  --c-teal: #0e8c7f;
  --c-accent: #f0a202;
  --c-accent-deep: #d98e00;
  --c-bg: #f5f7fa;
  --c-card: #ffffff;
  --c-text: #1f2d3d;
  --c-text-soft: #51606f;
  --c-line: #e3e9f0;
  --c-green: #0e8c5f;
  --c-red: #c0392b;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 10px rgba(11, 42, 85, .06);
  --shadow-md: 0 8px 30px rgba(11, 42, 85, .10);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-blue); text-decoration: none; }
a:hover { color: var(--c-teal); }
img { max-width: 100%; display: block; }

.container { width: min(1180px, 92%); margin: 0 auto; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-line);
}
.header-inner { display: flex; align-items: center; gap: 24px; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--c-primary); font-weight: 700; font-size: 22px; white-space: nowrap; }
.logo svg { flex: none; }
.logo small { display: block; font-size: 11px; font-weight: 400; color: var(--c-text-soft); letter-spacing: .08em; }
.main-nav { display: flex; gap: 4px; margin-left: auto; }
.main-nav a {
  padding: 8px 14px; border-radius: 8px; color: var(--c-text);
  font-size: 15px; font-weight: 500;
}
.main-nav a:hover { background: #eef4fb; color: var(--c-blue); }
.main-nav a.active { background: var(--c-primary); color: #fff; }
.nav-cta {
  background: var(--c-accent); color: #fff !important;
  padding: 9px 18px; border-radius: 999px; font-weight: 600; white-space: nowrap;
}
.nav-cta:hover { background: var(--c-accent-deep); }
.nav-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--c-line); border-radius: 8px; padding: 8px 10px; cursor: pointer; }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(14, 140, 127, .25), transparent 60%),
    radial-gradient(700px 380px at -10% 110%, rgba(29, 95, 191, .28), transparent 60%),
    linear-gradient(135deg, #071d3b 0%, #0b2a55 55%, #123c73 100%);
  color: #fff; overflow: hidden; position: relative;
}
.hero-inner { padding: 76px 0 66px; position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.25);
  padding: 6px 16px; border-radius: 999px; font-size: 14px; margin-bottom: 22px;
}
.hero h1 { font-size: clamp(28px, 4.6vw, 46px); line-height: 1.3; font-weight: 800; letter-spacing: .01em; }
.hero h1 em { font-style: normal; color: #ffce6b; }
.hero p.lead { margin-top: 16px; font-size: 17px; color: rgba(255,255,255,.88); max-width: 720px; }
.hero-tags { margin-top: 22px; display: flex; flex-wrap: wrap; gap: 10px; }
.hero-tags span {
  font-size: 13.5px; background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.22); padding: 5px 14px; border-radius: 999px;
}
.hero-actions { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 14px; }
.btn { display: inline-block; padding: 12px 26px; border-radius: 10px; font-weight: 600; font-size: 15.5px; transition: transform .15s ease, background .2s ease, box-shadow .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-accent { background: var(--c-accent); color: #fff; box-shadow: 0 6px 18px rgba(240,162,2,.35); }
.btn-accent:hover { background: var(--c-accent-deep); color: #fff; }
.btn-ghost { border: 1px solid rgba(255,255,255,.45); color: #fff; background: rgba(255,255,255,.06); }
.btn-ghost:hover { background: rgba(255,255,255,.16); color: #fff; }
.btn-blue { background: var(--c-blue); color: #fff; }
.btn-blue:hover { background: #164e9e; color: #fff; }

.hero-stats {
  margin-top: 46px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
}
.stat-card {
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius); padding: 18px 16px; text-align: center;
}
.stat-card b { display: block; font-size: 26px; font-weight: 800; color: #ffce6b; }
.stat-card span { font-size: 13.5px; color: rgba(255,255,255,.82); }

/* ---------- 通用区块 ---------- */
.section { padding: 64px 0; }
.section-alt { background: #fff; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 40px; }
.section-head h2 { font-size: clamp(24px, 3vw, 32px); color: var(--c-primary); line-height: 1.35; }
.section-head p { margin-top: 10px; color: var(--c-text-soft); }
.kicker {
  display: inline-block; color: var(--c-teal); font-weight: 700; font-size: 14px;
  letter-spacing: .12em; text-transform: uppercase; margin-bottom: 8px;
}

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

.card {
  background: var(--c-card); border: 1px solid var(--c-line);
  border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card-icon {
  width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px; color: #fff;
}
.card-icon.blue { background: linear-gradient(135deg, #1d5fbf, #3a7bd5); }
.card-icon.teal { background: linear-gradient(135deg, #0e8c7f, #17a394); }
.card-icon.amber { background: linear-gradient(135deg, #f0a202, #f7b733); }
.card-icon.navy { background: linear-gradient(135deg, #0b2a55, #1d4a8c); }
.card-icon.red { background: linear-gradient(135deg, #c0392b, #e2574c); }
.card h3 { font-size: 18.5px; color: var(--c-primary); margin-bottom: 8px; }
.card p { font-size: 14.5px; color: var(--c-text-soft); }
.card-link { display: inline-block; margin-top: 12px; font-weight: 600; font-size: 14.5px; }
.card-link::after { content: " →"; }

/* 服务卡片编号 */
.service-card { position: relative; }
.service-card .num {
  position: absolute; top: 18px; right: 22px; font-size: 44px; font-weight: 800;
  color: #eef2f8; line-height: 1; user-select: none;
}

/* ---------- 优势块 ---------- */
.adv-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 26px; }
.adv-item {
  display: flex; gap: 14px; align-items: flex-start; background: var(--c-card);
  border: 1px solid var(--c-line); border-radius: var(--radius); padding: 18px 20px;
}
.adv-item svg { flex: none; margin-top: 3px; }
.adv-item b { display: block; color: var(--c-primary); margin-bottom: 4px; }
.adv-item p { font-size: 14px; color: var(--c-text-soft); margin: 0; }

/* ---------- 欧盟负责人专栏 ---------- */
.eu-banner {
  background: linear-gradient(120deg, #071d3b, #0b2a55 60%, #123c73);
  border-radius: var(--radius-lg); color: #fff; padding: 44px;
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 34px; align-items: center;
  box-shadow: var(--shadow-md);
}
.eu-banner h3 { font-size: 24px; margin-bottom: 12px; }
.eu-banner p { color: rgba(255,255,255,.85); font-size: 15px; }
.eu-banner .tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.eu-banner .tag-list span {
  background: rgba(255,255,255,.10); border: 1px solid rgba(255,255,255,.25);
  padding: 7px 15px; border-radius: 999px; font-size: 14px;
}
.eu-points { display: grid; gap: 12px; }
.eu-point {
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius); padding: 14px 18px; font-size: 14.5px;
  display: flex; gap: 10px; align-items: flex-start;
}
.eu-point b { color: #ffce6b; }

/* ---------- 流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: step; }
.step {
  background: var(--c-card); border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 24px 20px; position: relative; box-shadow: var(--shadow-sm);
}
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  font-size: 30px; font-weight: 800; color: #dbe5f2; line-height: 1; display: block; margin-bottom: 10px;
}
.step b { display: block; color: var(--c-primary); font-size: 16.5px; margin-bottom: 6px; }
.step p { font-size: 13.5px; color: var(--c-text-soft); margin: 0; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--c-line); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow-sm); }
table.data-table { width: 100%; border-collapse: collapse; min-width: 640px; }
.data-table th {
  background: var(--c-primary); color: #fff; text-align: left; font-size: 14.5px;
  padding: 13px 18px; white-space: nowrap;
}
.data-table td { padding: 12px 18px; font-size: 14.5px; border-top: 1px solid var(--c-line); vertical-align: top; }
.data-table tbody tr:nth-child(even) { background: #f8fafc; }
.data-table td:first-child { font-weight: 600; color: var(--c-primary); white-space: nowrap; }
.tag { display: inline-block; font-size: 12.5px; padding: 2px 10px; border-radius: 999px; font-weight: 600; }
.tag-blue { background: #e8f0fb; color: #1d5fbf; }
.tag-teal { background: #e2f5f2; color: #0e8c7f; }
.tag-amber { background: #fdf3e0; color: #b97b00; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 860px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; }
.faq-q {
  width: 100%; text-align: left; background: none; border: none; cursor: pointer;
  padding: 18px 22px; font-size: 16px; font-weight: 600; color: var(--c-primary);
  display: flex; justify-content: space-between; align-items: center; gap: 14px;
  font-family: var(--font);
}
.faq-q .arrow { transition: transform .2s ease; color: var(--c-teal); font-weight: 800; flex: none; }
.faq-item.open .faq-q .arrow { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 22px 20px; font-size: 15px; color: var(--c-text-soft); }
.faq-item.open .faq-a { display: block; }

/* ---------- 文章卡片 ---------- */
.article-card { display: flex; flex-direction: column; }
.article-card .meta { font-size: 13px; color: var(--c-text-soft); margin: 8px 0 6px; }
.article-card h3 { font-size: 17.5px; }

/* ---------- CTA 带 ---------- */
.cta-band {
  background: linear-gradient(120deg, #0e8c7f, #0b2a55);
  border-radius: var(--radius-lg); color: #fff; padding: 44px 40px;
  display: flex; flex-wrap: wrap; align-items: center; gap: 24px; justify-content: space-between;
  box-shadow: var(--shadow-md);
}
.cta-band h3 { font-size: 24px; margin-bottom: 6px; }
.cta-band p { color: rgba(255,255,255,.85); font-size: 15px; }
.cta-band .btn-accent { flex: none; }

/* ---------- 页头（内页） ---------- */
.page-hero {
  background: linear-gradient(135deg, #071d3b, #0b2a55 60%, #123c73);
  color: #fff; padding: 56px 0 48px;
}
.page-hero h1 { font-size: clamp(26px, 3.6vw, 38px); line-height: 1.35; }
.page-hero p { margin-top: 12px; color: rgba(255,255,255,.85); max-width: 760px; }
.crumbs { margin-top: 16px; font-size: 13.5px; color: rgba(255,255,255,.6); }
.crumbs a { color: rgba(255,255,255,.85); }
.crumbs a:hover { color: #fff; }

/* ---------- 服务章节（services） ---------- */
.svc-block { margin-bottom: 44px; scroll-margin-top: 90px; }
.svc-block .svc-title {
  display: flex; align-items: center; gap: 14px; margin-bottom: 8px; flex-wrap: wrap;
}
.svc-block h2 { font-size: 24px; color: var(--c-primary); }
.svc-block .intro { color: var(--c-text-soft); margin-bottom: 16px; max-width: 860px; }
.svc-side { display: grid; grid-template-columns: 240px 1fr; gap: 28px; align-items: start; }
.svc-anchor {
  position: sticky; top: 92px; background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius-lg); padding: 18px; box-shadow: var(--shadow-sm);
}
.svc-anchor b { display: block; color: var(--c-primary); margin-bottom: 10px; font-size: 15px; }
.svc-anchor a { display: block; padding: 7px 10px; border-radius: 8px; font-size: 14px; color: var(--c-text); }
.svc-anchor a:hover { background: #eef4fb; color: var(--c-blue); }

/* ---------- 知识页 ---------- */
.article {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 34px; margin-bottom: 30px; box-shadow: var(--shadow-sm);
}
.article h2 { color: var(--c-primary); font-size: 23px; margin-bottom: 14px; }
.article h3 { color: var(--c-primary); font-size: 18px; margin: 22px 0 8px; }
.article p { margin-bottom: 12px; font-size: 15.5px; }
.article ul, .article ol { margin: 0 0 14px 22px; font-size: 15.5px; }
.article li { margin-bottom: 6px; }
.article .note {
  background: #fdf6e7; border-left: 4px solid var(--c-accent);
  padding: 12px 16px; border-radius: 0 10px 10px 0; font-size: 14.5px; margin: 16px 0;
}
.article .article-meta { font-size: 13px; color: var(--c-text-soft); margin-bottom: 10px; }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 28px; align-items: start; }
.contact-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 30px; box-shadow: var(--shadow-sm); }
.contact-card h2 { color: var(--c-primary); font-size: 21px; margin-bottom: 18px; }
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 14px; font-weight: 600; color: var(--c-primary); margin-bottom: 6px; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--c-line); border-radius: 10px;
  font-size: 15px; font-family: var(--font); background: #fbfcfe; color: var(--c-text);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: 2px solid rgba(29, 95, 191, .35); border-color: var(--c-blue); background: #fff;
}
.form-hint { font-size: 13px; color: var(--c-text-soft); margin-top: 6px; }
.contact-line { display: flex; gap: 12px; align-items: flex-start; padding: 12px 0; border-bottom: 1px dashed var(--c-line); font-size: 15px; }
.contact-line:last-child { border-bottom: none; }
.contact-line svg { flex: none; margin-top: 4px; }
.contact-line b { color: var(--c-primary); }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--c-primary-deep); color: rgba(255,255,255,.78); padding: 52px 0 0; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 34px; padding-bottom: 36px; }
.footer-grid h4 { color: #fff; font-size: 15.5px; margin-bottom: 14px; }
.footer-grid a { display: block; color: rgba(255,255,255,.72); font-size: 14px; padding: 4px 0; }
.footer-grid a:hover { color: #ffce6b; }
.footer-brand p { font-size: 14px; margin-top: 10px; max-width: 320px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12); padding: 18px 0; font-size: 13.5px;
  color: rgba(255,255,255,.55); display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
}

/* ---------- 通用小件 ---------- */
.muted { color: var(--c-text-soft); }
.small { font-size: 13.5px; }
.center { text-align: center; }
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; } .mt-32 { margin-top: 32px; } .mt-48 { margin-top: 48px; }
.mb-16 { margin-bottom: 16px; }
.divider { border: none; border-top: 1px solid var(--c-line); margin: 40px 0; }
.check-list { list-style: none; }
.check-list li { position: relative; padding-left: 30px; margin-bottom: 10px; font-size: 15px; }
.check-list li::before {
  content: "✓"; position: absolute; left: 0; top: 0; width: 20px; height: 20px;
  background: var(--c-green); color: #fff; border-radius: 50%; font-size: 12px;
  display: flex; align-items: center; justify-content: center; line-height: 1;
}

/* ---------- 404 ---------- */
.error-box { text-align: center; padding: 90px 0; }
.error-box .code { font-size: 96px; font-weight: 800; color: var(--c-primary); line-height: 1; }
.error-box p { margin: 16px 0 26px; color: var(--c-text-soft); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .svc-side { grid-template-columns: 1fr; }
  .svc-anchor { position: static; }
  .svc-anchor a { display: inline-block; margin-right: 6px; }
}
@media (max-width: 820px) {
  .grid-3, .grid-2, .adv-row { grid-template-columns: 1fr; }
  .grid-5 { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .eu-banner { grid-template-columns: 1fr; padding: 30px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .main-nav {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--c-line); flex-direction: column;
    padding: 12px 4%; box-shadow: var(--shadow-md);
  }
  .main-nav.open { display: flex; }
  .nav-toggle { display: block; }
  .nav-cta { text-align: center; }
}
@media (max-width: 520px) {
  .grid-5 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-inner { padding: 52px 0 48px; }
  .cta-band { padding: 30px 22px; }
}