:root {
  --brand: #c8102e;
  --brand-dark: #8a0a1f;
  --brand-light: #fbeaec;
  --accent: #1d9e75;
  --ink: #222b36;
  --ink-soft: #5c6672;
  --bg: #ffffff;
  --bg-soft: #f5f7fa;
  --line: #e3e8ef;
  --radius: 14px;
  --shadow: 0 2px 14px rgba(200, 16, 46, 0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 15px;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ── 顶部导航 ─────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  color: #fff; font-weight: 700; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
}
.logo-img { height: 38px; width: auto; display: block; }
.nav-links { display: flex; gap: 34px; list-style: none; }
.nav-links a { color: var(--ink); font-size: 15px; padding: 6px 0; position: relative; }
.nav-links a:hover { color: var(--brand); text-decoration: none; }
.nav-links a.active { color: var(--brand); font-weight: 600; }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -3px; height: 2px;
  background: var(--brand); border-radius: 2px;
}
.nav-cta {
  background: var(--brand); color: #fff !important;
  padding: 8px 18px !important; border-radius: 999px; font-size: 14px !important;
}
.nav-cta:hover { background: var(--brand-dark); text-decoration: none !important; }
.nav-toggle { display: none; background: none; border: none; font-size: 24px; color: var(--ink); cursor: pointer; }

/* ── 首页横幅 ─────────────────────────── */
.hero {
  background: linear-gradient(120deg, #8a0a1f 0%, #c8102e 55%, #e2344c 100%);
  color: #fff; padding: 90px 0 100px; overflow: hidden; position: relative;
}
.hero-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 40px; align-items: center; }
.hero-badge {
  display: inline-block; background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.3);
  padding: 5px 14px; border-radius: 999px; font-size: 13px; margin-bottom: 20px;
}
.hero h1 { font-size: 40px; font-weight: 700; line-height: 1.3; margin-bottom: 18px; letter-spacing: 1px; }
.hero p { font-size: 16px; opacity: 0.9; margin-bottom: 30px; max-width: 520px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 12px 26px; border-radius: 999px;
  font-size: 15px; font-weight: 600; border: none; cursor: pointer; transition: 0.2s;
}
.btn-primary { background: #fff; color: var(--brand-dark); }
.btn-primary:hover { background: #e6f1fb; text-decoration: none; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.6); }
.btn-ghost:hover { background: rgba(255,255,255,0.12); text-decoration: none; }
.hero-visual { border-radius: var(--radius); overflow: hidden; box-shadow: 0 18px 50px rgba(0,0,0,0.25); }
.hero-visual img { width: 100%; height: 300px; object-fit: cover; }
.hero-tagline { display: flex; gap: 30px; margin-top: 46px; flex-wrap: wrap; }
.hero-tagline div span { font-size: 26px; font-weight: 700; display: block; }
.hero-tagline div small { opacity: 0.75; font-size: 13px; }

/* ── 区块通用 ─────────────────────────── */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 46px; }
.section-head h2 { font-size: 28px; font-weight: 700; margin-bottom: 10px; }
.section-head p { color: var(--ink-soft); }
.cards { display: grid; gap: 22px; }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; transition: 0.2s;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.card-icon {
  width: 44px; height: 44px; border-radius: 11px; margin-bottom: 14px;
  display: flex; align-items: center; justify-content: center; font-size: 20px;
}
.card h3 { font-size: 16px; margin-bottom: 8px; }
.card p { font-size: 13.5px; color: var(--ink-soft); }

/* 云参观横幅卡 */
.tour-banner {
  border-radius: 20px; overflow: hidden; position: relative; color: #fff;
  background: linear-gradient(120deg, #0f6e56, #1d9e75 60%, #35b78c);
}
.tour-banner-inner { padding: 54px 48px; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.tour-banner h2 { font-size: 28px; margin-bottom: 8px; }
.tour-banner p { opacity: 0.92; max-width: 560px; }
.tour-banner .btn-primary { background: #fff; color: #0f6e56; }
.tour-mini { display: flex; gap: 10px; }
.tour-mini img { width: 96px; height: 58px; object-fit: cover; border-radius: 8px; opacity: 0.9; }

/* 页脚 */
.site-footer { background: #16233a; color: #b7c2d4; padding: 46px 0 30px; font-size: 13.5px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 30px; margin-bottom: 30px; }
.site-footer h4 { color: #fff; font-size: 15px; margin-bottom: 12px; }
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: #b7c2d4; }
.site-footer a:hover { color: #fff; text-decoration: none; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; text-align: center; color: #7d8aa0; }
.contact-li { margin-bottom: 12px; display: flex; gap: 8px; align-items: flex-start; }
.contact-li b { color: #dfe6f0; font-weight: 500; min-width: 52px; display: inline-block; }

/* ── 内容页通用 ───────────────────────── */
.page-head { background: linear-gradient(120deg, #8a0a1f, #c8102e); color: #fff; padding: 54px 0; }
.page-head h1 { font-size: 30px; margin-bottom: 6px; }
.page-head p { opacity: 0.85; }
.prose { max-width: 860px; }
.prose h2 { font-size: 22px; margin: 34px 0 12px; }
.prose p { margin-bottom: 14px; color: var(--ink-soft); }
.prose ul { margin: 0 0 16px 22px; color: var(--ink-soft); }
.prose li { margin-bottom: 6px; }

/* 联系表单占位 / 信息卡 */
.info-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.stat-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.stat-box { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; text-align: center; }
.stat-box b { font-size: 28px; color: var(--brand); display: block; }
.stat-box span { font-size: 13px; color: var(--ink-soft); }

/* ── 响应式 ─────────────────────────── */
@media (max-width: 900px) {
  .nav-links { display: none; position: absolute; top: 66px; left: 0; right: 0; background: #fff;
    flex-direction: column; gap: 0; border-bottom: 1px solid var(--line); padding: 8px 24px; }
  .nav-links.open { display: flex; }
  .nav-links li { padding: 10px 0; border-bottom: 1px solid var(--bg-soft); }
  .nav-toggle { display: block; }
  .hero { padding: 60px 0 66px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .cards-3, .cards-4 { grid-template-columns: 1fr; }
  .stat-list { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .tour-banner-inner { padding: 36px 24px; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
}