/* ═══════════════════════════════════════════════
   百龙泰程旅行社官网 — Design System
   品牌绿（和谐/诚实踏实）+ 暖金（信誉积累）
   四色精神：红=热情 蓝=拼搏 黄=自信 绿=和谐
   ═══════════════════════════════════════════════ */

:root {
  --green-950: #06281E;
  --green-900: #0B3D2E;
  --green-800: #0E4F3B;
  --green-700: #116349;
  --green-600: #147A57;
  --green-500: #1E8F68;
  --green-100: #E2F0E9;
  --green-50: #F2F8F5;
  --gold: #C9A227;
  --gold-soft: #EADDB4;
  --gold-50: #FBF6E8;
  --paper: #FAF7F0;
  --ink: #22302A;
  --muted: #5E6E66;
  --red: #C0392B;
  --blue: #2E5E8C;
  --line: #E5E2D8;
  --white: #FFFFFF;
  --shadow-sm: 0 2px 10px rgba(11,61,46,.08);
  --shadow-md: 0 8px 28px rgba(11,61,46,.12);
  --radius: 14px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
}

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

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(--paper);
}

img { max-width: 100%; display: block; }
a { color: var(--green-700); text-decoration: none; }
a:hover { color: var(--green-500); }
ul { list-style: none; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }

/* ─────────── 顶部条 ─────────── */
.topbar {
  background: var(--green-950);
  color: rgba(255,255,255,.82);
  font-size: 13px;
  padding: 7px 0;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 4px 16px; }
.topbar a { color: var(--gold-soft); }
.topbar .tb-phone { font-weight: 600; letter-spacing: .3px; }

/* ─────────── 导航 ─────────── */
.header {
  position: sticky; top: 0; z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 6px rgba(11,61,46,.05);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo {
  width: 46px; height: 46px; border-radius: 12px;
  background: linear-gradient(135deg, var(--green-600), var(--green-900));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 22px;
  box-shadow: var(--shadow-sm); flex-shrink: 0;
}
.brand-name { line-height: 1.25; }
.brand-name b { display: block; font-size: 19px; color: var(--green-900); letter-spacing: 1px; }
.brand-name span { font-size: 12px; color: var(--muted); letter-spacing: 2px; }

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  padding: 8px 15px; border-radius: 8px;
  color: var(--ink); font-size: 15.5px; font-weight: 500;
  transition: .2s;
}
.nav-links a:hover, .nav-links a.active { background: var(--green-50); color: var(--green-700); }
.nav-cta {
  margin-left: 10px; padding: 9px 18px !important;
  background: linear-gradient(135deg, var(--green-600), var(--green-800));
  color: #fff !important; border-radius: 999px !important;
}
.nav-cta:hover { opacity: .9; background: var(--green-700); }

.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.hamburger span { width: 24px; height: 2.5px; background: var(--green-900); border-radius: 2px; }

/* 移动端菜单 */
.mobile-menu {
  display: none; flex-direction: column;
  background: var(--white); border-top: 1px solid var(--line);
  padding: 10px 20px 18px;
}
.mobile-menu a { padding: 12px 4px; border-bottom: 1px solid var(--green-50); font-size: 16px; }
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu.open { display: flex; }

/* ─────────── 通用区块 ─────────── */
.section { padding: 72px 0; }
.section-alt { background: var(--white); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-tag {
  display: inline-block; font-size: 13px; letter-spacing: 3px; color: var(--green-600);
  font-weight: 600; margin-bottom: 10px;
}
.section-head h2 { font-size: 32px; color: var(--green-950); letter-spacing: 2px; margin-bottom: 12px; }
.section-head p { color: var(--muted); font-size: 16px; }
.gold-bar {
  width: 46px; height: 3px; margin: 14px auto 0;
  background: linear-gradient(90deg, var(--gold), var(--gold-soft));
  border-radius: 2px;
}

/* ─────────── Hero（首页） ─────────── */
.hero {
  position: relative; color: #fff; overflow: hidden;
  background:
    radial-gradient(1000px 500px at 85% -10%, rgba(201,162,39,.28), transparent 60%),
    radial-gradient(700px 400px at -10% 110%, rgba(30,143,104,.45), transparent 60%),
    linear-gradient(140deg, var(--green-950) 0%, var(--green-800) 55%, var(--green-700) 100%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(255,255,255,.07) 1px, transparent 1px);
  background-size: 26px 26px;
}
.hero-inner { position: relative; z-index: 1; padding: 96px 0 90px; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.hero h1 { font-size: 42px; line-height: 1.35; letter-spacing: 3px; font-weight: 800; margin-bottom: 18px; }
.hero h1 em { font-style: normal; color: var(--gold-soft); }
.hero .sub { font-size: 17px; opacity: .88; max-width: 520px; margin-bottom: 30px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 13px 30px; border-radius: 999px;
  font-size: 15.5px; font-weight: 600; transition: .25s; border: none; cursor: pointer;
}
.btn-gold { background: linear-gradient(135deg, var(--gold), #A97F1D); color: #fff; box-shadow: 0 6px 20px rgba(201,162,39,.35); }
.btn-gold:hover { transform: translateY(-2px); color: #fff; }
.btn-ghost { border: 1.5px solid rgba(255,255,255,.55); color: #fff; background: transparent; }
.btn-ghost:hover { background: rgba(255,255,255,.12); color: #fff; }
.hero .trust-row { display: flex; gap: 34px; margin-top: 38px; flex-wrap: wrap; }
.trust-item b { display: block; font-size: 30px; color: var(--gold-soft); font-weight: 800; }
.trust-item span { font-size: 13.5px; opacity: .8; }

.hero-card {
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--radius); padding: 30px; backdrop-filter: blur(6px);
}
.hero-card h3 { font-size: 18px; margin-bottom: 18px; color: var(--gold-soft); letter-spacing: 2px; }
.hero-card ul { display: flex; flex-direction: column; gap: 13px; }
.hero-card li { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; opacity: .95; }
.hero-card li::before {
  content: ""; flex-shrink: 0; width: 7px; height: 7px; border-radius: 50%;
  background: var(--gold); margin-top: 9px;
}
.hero-card .hc-foot { margin-top: 20px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.16); font-size: 13.5px; opacity: .85; }

/* 子页 Hero */
.page-hero {
  position: relative; color: #fff; padding: 64px 0 58px; overflow: hidden;
  background:
    radial-gradient(800px 380px at 90% -20%, rgba(201,162,39,.25), transparent 55%),
    linear-gradient(135deg, var(--green-950), var(--green-800));
}
.page-hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 24px 24px;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero .crumb { font-size: 13.5px; opacity: .75; margin-bottom: 12px; }
.page-hero .crumb a { color: var(--gold-soft); }
.page-hero h1 { font-size: 34px; letter-spacing: 3px; margin-bottom: 10px; }
.page-hero p { max-width: 640px; opacity: .85; font-size: 15.5px; }

/* ─────────── 卡片 ─────────── */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.card {
  background: var(--white); border-radius: var(--radius);
  border: 1px solid var(--line); padding: 28px;
  box-shadow: var(--shadow-sm); transition: .25s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card .icon {
  width: 52px; height: 52px; border-radius: 13px; margin-bottom: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; background: var(--green-50);
}
.card h3 { font-size: 18.5px; color: var(--green-900); margin-bottom: 10px; letter-spacing: 1px; }
.card p { font-size: 14.5px; color: var(--muted); }
.card .more { display: inline-block; margin-top: 14px; font-size: 14px; font-weight: 600; }
.card .more::after { content: " →"; }

/* ─────────── 数字条 ─────────── */
.stats-band {
  background: linear-gradient(135deg, var(--green-700), var(--green-900));
  color: #fff; padding: 44px 0;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat b { display: block; font-size: 36px; color: var(--gold-soft); font-weight: 800; }
.stat span { font-size: 14px; opacity: .85; }

/* ─────────── 步骤 / 列表 ─────────── */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step { position: relative; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px 22px; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  position: absolute; top: 14px; right: 18px;
  font-size: 34px; font-weight: 800; color: var(--green-100);
}
.step h4 { font-size: 16.5px; color: var(--green-900); margin-bottom: 8px; letter-spacing: 1px; }
.step p { font-size: 14px; color: var(--muted); }

/* ─────────── 时间线 ─────────── */
.timeline { position: relative; max-width: 780px; margin: 0 auto; padding-left: 30px; }
.timeline::before {
  content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 2px;
  background: linear-gradient(180deg, var(--gold), var(--green-500));
}
.tl-item { position: relative; padding: 0 0 30px 26px; }
.tl-item::before {
  content: ""; position: absolute; left: -26px; top: 7px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--white); border: 3px solid var(--green-600);
}
.tl-item:last-child { padding-bottom: 0; }
.tl-item b { display: block; font-size: 17px; color: var(--green-800); letter-spacing: 1px; }
.tl-item b i { font-style: normal; color: var(--gold); margin-right: 10px; font-weight: 800; }
.tl-item p { font-size: 14.5px; color: var(--muted); margin-top: 4px; }

/* ─────────── 荣誉 ─────────── */
.honor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.honor {
  background: var(--white); border: 1px solid var(--line); border-left: 4px solid var(--gold);
  border-radius: 10px; padding: 16px 18px; display: flex; justify-content: space-between; gap: 10px;
  align-items: center; transition: .2s;
}
.honor:hover { box-shadow: var(--shadow-sm); }
.honor span { font-size: 14.5px; font-weight: 500; color: var(--ink); }
.honor em { font-style: normal; font-size: 12.5px; color: var(--gold); white-space: nowrap; font-weight: 600; }

/* ─────────── 品牌文化四色 ─────────── */
.spirit-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.spirit { border-radius: var(--radius); padding: 24px; color: #fff; }
.spirit h4 { font-size: 17px; margin-bottom: 6px; letter-spacing: 2px; }
.spirit p { font-size: 13.5px; opacity: .92; }
.spirit-red { background: linear-gradient(135deg, #C0392B, #8E2A1F); }
.spirit-blue { background: linear-gradient(135deg, #2E5E8C, #1D4065); }
.spirit-yellow { background: linear-gradient(135deg, #C9A227, #97791B); }
.spirit-green { background: linear-gradient(135deg, var(--green-600), var(--green-900)); }

/* ─────────── 报价/服务表 ─────────── */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--line); background: var(--white); box-shadow: var(--shadow-sm); }
table { width: 100%; border-collapse: collapse; min-width: 640px; }
th { background: var(--green-900); color: #fff; font-weight: 600; font-size: 14.5px; padding: 13px 18px; text-align: left; letter-spacing: 1px; }
td { padding: 13px 18px; font-size: 14.5px; border-top: 1px solid var(--line); }
tr:nth-child(even) td { background: var(--green-50); }
td b { color: var(--green-800); }

/* ─────────── CTA 横幅 ─────────── */
.cta-band {
  background:
    radial-gradient(700px 320px at 15% 120%, rgba(201,162,39,.3), transparent 55%),
    linear-gradient(135deg, var(--green-900), var(--green-700));
  color: #fff; text-align: center; padding: 60px 20px;
}
.cta-band h2 { font-size: 28px; letter-spacing: 3px; margin-bottom: 12px; }
.cta-band p { opacity: .85; margin-bottom: 26px; }
.cta-band .tel { font-size: 26px; font-weight: 800; color: var(--gold-soft); letter-spacing: 1px; }

/* ─────────── 文章页 ─────────── */
.article { background: var(--white); border-radius: var(--radius); border: 1px solid var(--line); padding: 44px 48px; max-width: 860px; margin: 0 auto; box-shadow: var(--shadow-sm); }
.article h2 { font-size: 24px; color: var(--green-900); margin: 34px 0 14px; letter-spacing: 1px; }
.article h2:first-child { margin-top: 0; }
.article h3 { font-size: 18px; color: var(--green-800); margin: 24px 0 10px; }
.article p { margin-bottom: 14px; color: #3A4A42; }
.article ul, .article ol { margin: 0 0 16px 22px; }
.article li { margin-bottom: 8px; color: #3A4A42; }
.article li::marker { color: var(--gold); font-weight: 700; }
.article blockquote {
  border-left: 4px solid var(--gold); background: var(--gold-50);
  padding: 14px 18px; border-radius: 0 10px 10px 0; margin: 18px 0; color: #6B5B1F;
}
.article table { margin: 16px 0; }
.article .meta-line { font-size: 13.5px; color: var(--muted); border-bottom: 1px solid var(--line); padding-bottom: 16px; margin-bottom: 26px; }

/* ─────────── 页脚 ─────────── */
.footer { background: var(--green-950); color: rgba(255,255,255,.78); padding: 56px 0 0; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer h4 { color: var(--gold-soft); font-size: 15.5px; letter-spacing: 2px; margin-bottom: 16px; }
.footer a { color: rgba(255,255,255,.78); display: block; margin-bottom: 10px; transition: .2s; }
.footer a:hover { color: var(--gold-soft); }
.footer .fb-brand { font-size: 19px; font-weight: 700; color: #fff; letter-spacing: 2px; margin-bottom: 12px; }
.footer .fb-desc { font-size: 13.5px; line-height: 1.8; max-width: 300px; }
.footer .fb-contact { margin-top: 18px; }
.footer .fb-contact li { margin-bottom: 8px; }
.footer .fb-contact b { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12); padding: 18px 0; font-size: 13px;
  text-align: center; color: rgba(255,255,255,.55);
}
.footer-bottom a { color: rgba(255,255,255,.7); display: inline; margin: 0 4px; }
.footer-bottom a:hover { color: var(--gold-soft); }

/* ─────────── 联系页 ─────────── */
.contact-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.contact-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; text-align: center; box-shadow: var(--shadow-sm); }
.contact-card .icon { font-size: 30px; margin-bottom: 12px; }
.contact-card h3 { font-size: 16.5px; color: var(--green-900); margin-bottom: 8px; }
.contact-card p { font-size: 14.5px; color: var(--muted); }
.contact-card b { color: var(--green-800); font-size: 17px; letter-spacing: .5px; }

/* ─────────── 面包屑/其他 ─────────── */
.notice {
  background: var(--gold-50); border: 1px solid var(--gold-soft);
  border-radius: 10px; padding: 14px 18px; font-size: 14px; color: #6B5B1F; margin-bottom: 26px;
}

/* ─────────── 响应式 ─────────── */
@media (max-width: 992px) {
  .grid-4, .spirit-grid, .steps { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .honor-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; padding: 64px 0 60px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-cards { grid-template-columns: 1fr; }
  .hero h1 { font-size: 34px; }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .section { padding: 52px 0; }
  .section-head h2 { font-size: 26px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .article { padding: 28px 22px; }
  .page-hero h1 { font-size: 27px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .honor-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero .trust-row { gap: 20px; }
  .trust-item b { font-size: 24px; }
}