/* ============================================================
   成都国铁集装箱 — H5 多语言门户样式（移动端优先）
   ============================================================ */
:root {
  --blue-900: #072A4E;
  --blue-800: #0A3D74;
  --blue-700: #0D4D8F;
  --blue-600: #1273C4;
  --blue-500: #2E8FE0;
  --blue-100: #E3EEF9;
  --blue-050: #F2F7FC;
  --orange: #F39800;
  --orange-deep: #E07E00;
  --ink: #16324A;
  --gray-600: #5B7186;
  --line: #DCE7F1;
  --white: #fff;
  --radius: 16px;
  --shadow: 0 8px 28px rgba(10, 61, 116, .12);
  --shadow-lg: 0 16px 48px rgba(10, 61, 116, .18);
  --nav-h: 60px;
  --bar-h: 62px;
  --wrap: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  font-size: 16.5px;
  line-height: 1.75;
  padding-bottom: var(--bar-h);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.wrap { width: min(100% - 40px, var(--wrap)); margin: 0 auto; }

/* ---------------- 导航 ---------------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: linear-gradient(180deg, rgba(7,42,78,.72), rgba(7,42,78,.45));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: background .3s;
}
.nav.scrolled { background: rgba(7, 42, 78, .96); box-shadow: 0 4px 20px rgba(0,0,0,.18); }
.nav-inner {
  width: min(100% - 32px, var(--wrap));
  height: 100%; margin: 0 auto;
  display: flex; align-items: center; gap: 14px;
}
.nav-logo img { height: 32px; width: auto; }
.nav-links { display: none; margin-left: auto; gap: 26px; }
.nav-links a { color: rgba(255,255,255,.92); font-size: 15.5px; font-weight: 500; position: relative; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px;
  background: var(--orange); transition: width .25s;
}
.nav-links a:hover::after { width: 100%; }

/* 语言切换 */
.lang-switch { margin-left: auto; position: relative; }
.nav-links ~ .lang-switch { margin-left: 0; }
.lang-btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,.14); color: #fff;
  border: 1px solid rgba(255,255,255,.35); border-radius: 999px;
  padding: 7px 13px; font-size: 14px; font-weight: 600; cursor: pointer;
  font-family: var(--font);
}
.lang-btn .chev { transition: transform .25s; }
.lang-switch.open .lang-btn .chev { transform: rotate(180deg); }
.lang-menu {
  position: absolute; top: calc(100% + 10px); right: 0; min-width: 150px;
  background: var(--white); border-radius: 12px; box-shadow: var(--shadow-lg);
  padding: 6px; opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: all .22s;
}
.lang-switch.open .lang-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-menu li {
  padding: 10px 14px; border-radius: 8px; font-size: 15px; font-weight: 500;
  cursor: pointer; color: var(--ink);
}
.lang-menu li:hover { background: var(--blue-050); }
.lang-menu li.active { background: var(--blue-800); color: #fff; }
.lang-menu { max-height: min(64vh, 420px); overflow-y: auto; -webkit-overflow-scrolling: touch; }
.lang-menu .lang-group {
  padding: 8px 14px 4px; font-size: 11.5px; font-weight: 700; letter-spacing: .08em;
  color: var(--blue); text-transform: uppercase; cursor: default;
}
.lang-menu .lang-group:hover { background: none; }
.lang-menu li[data-lang] { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.lang-menu li[data-lang]::after {
  content: attr(data-code); font-size: 11px; font-weight: 600; color: var(--muted);
  text-transform: uppercase; letter-spacing: .06em;
}
.lang-menu li.active[data-lang]::after { color: rgba(255,255,255,.75); }

/* ---------------- HERO ---------------- */
.hero {
  position: relative; min-height: 100svh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: calc(var(--nav-h) + 30px) 22px 70px;
  overflow: hidden; color: #fff;
}
.hero-bg {
  position: absolute; inset: 0;
  background: url("../img/hero.webp") center 38%/cover no-repeat;
  z-index: -2;
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(7,42,78,.72) 0%, rgba(7,42,78,.46) 45%, rgba(7,42,78,.82) 100%);
}
.hero-kicker {
  font-size: 13px; letter-spacing: .22em; font-weight: 600;
  color: #D8EAFB; text-transform: uppercase; margin-bottom: 18px;
}
.hero-title {
  font-size: clamp(24px, 6.2vw, 44px); font-weight: 800; line-height: 1.3;
  letter-spacing: .01em; text-shadow: 0 4px 24px rgba(0,0,0,.4);
  text-wrap: balance; max-width: 21ch; margin: 0 auto;
}
.hero-tagline {
  margin-top: 14px; font-size: clamp(18px, 4.6vw, 27px); font-weight: 700;
  color: var(--orange); letter-spacing: .12em;
}
.hero-sub {
  margin-top: 12px; font-size: 15.5px; color: rgba(255,255,255,.88); max-width: 640px;
}
.hero-badges { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.hero-badge {
  font-size: 12.5px; font-weight: 600; letter-spacing: .03em;
  color: #EAF4FE; padding: 6px 13px; border-radius: 999px;
  background: rgba(255,255,255,.13); border: 1px solid rgba(255,255,255,.35);
  backdrop-filter: blur(6px);
}
.hero-cta { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 30px; border-radius: 999px; font-size: 16.5px; font-weight: 700;
  transition: transform .2s, box-shadow .2s; border: 2px solid transparent; cursor: pointer;
}
.btn:active { transform: scale(.97); }
.btn-primary {
  background: linear-gradient(135deg, var(--orange), var(--orange-deep));
  color: #fff; box-shadow: 0 10px 26px rgba(243, 152, 0, .4);
}
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost { border-color: rgba(255,255,255,.65); color: #fff; background: rgba(255,255,255,.08); }
.btn-ghost:hover { background: rgba(255,255,255,.18); }
.hero-scroll {
  position: absolute; bottom: calc(var(--bar-h) + 18px); left: 50%; transform: translateX(-50%);
  font-size: 12.5px; letter-spacing: .3em; color: rgba(255,255,255,.75);
  animation: floaty 2.2s ease-in-out infinite;
}
@keyframes floaty { 0%,100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 8px); } }

/* ---------------- 数据条 ---------------- */
.stats { background: var(--blue-800); padding: 26px 0; }
.stats-grid {
  width: min(100% - 36px, var(--wrap)); margin: 0 auto;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px 12px; text-align: center;
}
.stat-v { font-size: clamp(21px, 5.4vw, 34px); font-weight: 800; color: #fff; line-height: 1.15; }
.stat-v .sfx { color: var(--orange); font-size: .55em; font-weight: 700; margin-left: 2px; }
.stat-l { font-size: 12.5px; color: #CDE0F4; margin-top: 4px; letter-spacing: .04em; }

/* ---------------- 移动端快捷导航 ---------------- */
.chip-nav {
  position: sticky; top: var(--nav-h); z-index: 40;
  display: flex; gap: 8px; overflow-x: auto; -webkit-overflow-scrolling: touch;
  padding: 10px 16px; scrollbar-width: none;
  background: rgba(255,255,255,.94); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.chip-nav::-webkit-scrollbar { display: none; }
.chip-nav a {
  flex: none; font-size: 14.5px; font-weight: 600; color: var(--blue-800);
  text-decoration: none; padding: 7px 16px; border-radius: 99px;
  background: var(--blue-100); white-space: nowrap; transition: .2s;
}
.chip-nav a:active { background: var(--blue-600); color: #fff; }
.chip-nav a.active { background: var(--blue-800); color: #fff; }
@media (min-width: 900px) { .chip-nav { display: none; } }

/* ---------------- 通用 Section ---------------- */
.section { padding: 64px 0; }
.section-alt { background: var(--blue-050); }
.section-dark { background: linear-gradient(160deg, var(--blue-900), var(--blue-700)); color: #fff; }
.sec-head { text-align: center; max-width: 760px; margin: 0 auto 40px; }
.kicker {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .24em;
  color: var(--blue-600); text-transform: uppercase; margin-bottom: 10px;
}
.section-dark .kicker { color: var(--orange); }
.sec-title { font-size: clamp(25px, 6vw, 38px); font-weight: 800; line-height: 1.3; }
.sec-lead { margin-top: 12px; font-size: 16px; color: var(--gray-600); }
.section-dark .sec-lead { color: #C4DCF2; }
.sub-title { font-size: 20px; font-weight: 800; margin: 48px 0 20px; padding-left: 12px; border-left: 4px solid var(--orange); }

/* ---------------- 关于我们 ---------------- */
.about-grid { display: grid; gap: 26px; }
.about-text p { margin-bottom: 14px; }
.about-photo { display: grid; gap: 14px; }
.about-photo img { border-radius: var(--radius); box-shadow: var(--shadow); aspect-ratio: 16/8.5; object-fit: cover; }

.adv-grid { display: grid; gap: 14px; }
.adv-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 18px; box-shadow: 0 4px 16px rgba(10,61,116,.06);
}
.adv-card .t { font-size: 17px; font-weight: 800; color: var(--blue-800); display: flex; align-items: center; gap: 9px; }
.adv-card .t::before {
  content: ""; width: 9px; height: 9px; border-radius: 3px; flex: none;
  background: linear-gradient(135deg, var(--blue-600), var(--orange));
}
.adv-card .d { margin-top: 8px; font-size: 15px; color: var(--gray-600); line-height: 1.7; }

/* 时间轴 */
.timeline { position: relative; padding-left: 26px; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2.5px;
  background: linear-gradient(var(--blue-600), var(--orange)); border-radius: 2px;
}
.tl-item { position: relative; padding: 0 0 26px 18px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: -24.5px; top: 7px; width: 13px; height: 13px;
  border-radius: 50%; background: #fff; border: 3px solid var(--blue-600);
}
.tl-item:last-child::before { border-color: var(--orange); background: var(--orange); }
.tl-year { font-size: 14px; font-weight: 800; color: var(--orange-deep); letter-spacing: .06em; }
.tl-t { font-size: 18.5px; font-weight: 800; color: var(--blue-800); }
.tl-d { font-size: 15px; color: var(--gray-600); margin-top: 4px; }

/* 区位 */
.loc-grid { display: grid; gap: 14px; }
.loc-card {
  background: linear-gradient(150deg, var(--blue-050), #fff);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 18px;
}
.loc-card .t { font-size: 17px; font-weight: 800; color: var(--blue-800); }
.loc-card .d { margin-top: 6px; font-size: 15px; color: var(--gray-600); }

/* ---------------- 服务 ---------------- */
.svc-grid { display: grid; gap: 20px; }
.svc-card {
  background: var(--white); border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); display: flex; flex-direction: column;
  transition: transform .25s, box-shadow .25s;
}
.svc-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.svc-media { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.svc-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.svc-card:hover .svc-media img { transform: scale(1.06); }
.svc-tag {
  position: absolute; left: 14px; bottom: 12px;
  background: rgba(7,42,78,.85); backdrop-filter: blur(4px);
  color: #fff; font-size: 12.5px; font-weight: 700;
  padding: 5px 12px; border-radius: 999px; border: 1px solid rgba(255,255,255,.25);
}
.svc-body { padding: 20px 18px 22px; display: flex; flex-direction: column; flex: 1; }
.svc-title { font-size: 19px; font-weight: 800; color: var(--blue-900); }
.svc-desc { margin-top: 8px; font-size: 15px; color: var(--gray-600); }
.svc-list { margin-top: 14px; display: grid; gap: 8px; }
.svc-list li {
  position: relative; padding-left: 24px; font-size: 14.5px; color: var(--ink);
}
.svc-list li::before {
  content: "✔"; position: absolute; left: 0; top: 0;
  color: var(--blue-600); font-size: 13px; font-weight: 800;
}

/* ---------------- 一带一路通道 ---------------- */
.section-bri { background: linear-gradient(180deg, var(--blue-050) 0%, #fff 100%); }
.bri-grid { display: grid; gap: 14px; }
.bri-card {
  position: relative; background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px 18px; box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s;
}
.bri-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.bri-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.bri-dir { font-size: 16.5px; font-weight: 800; color: var(--blue-800); }
.bri-arrow {
  flex: none; width: 38px; height: 38px; border-radius: 50%;
  background: var(--blue-100); color: var(--blue-700);
  display: flex; align-items: center; justify-content: center; font-size: 19px; font-weight: 700;
}
.bri-gate { margin-top: 10px; font-size: 13px; font-weight: 600; color: var(--orange-deep); letter-spacing: .02em; }
.bri-desc { margin-top: 8px; font-size: 14.5px; color: var(--gray-600); line-height: 1.62; }
.bri-nodes { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 6px; }
.bri-nodes span {
  font-size: 12.5px; font-weight: 600; color: var(--blue-800);
  background: var(--blue-100); padding: 4px 11px; border-radius: 999px;
}
.bri-policy { display: grid; gap: 12px; grid-template-columns: 1fr; }
.bri-policy-card {
  background: var(--blue-800); color: #fff; border-radius: 14px; padding: 18px 20px;
  position: relative; overflow: hidden;
}
.bri-policy-card::after {
  content: "§"; position: absolute; right: 14px; top: 6px; font-size: 42px; font-weight: 800;
  color: rgba(255,255,255,.12); line-height: 1;
}
.bri-policy-card .t { font-size: 16px; font-weight: 800; color: #FFD98A; }
.bri-policy-card .d { margin-top: 6px; font-size: 13.5px; color: #CDE0F4; line-height: 1.6; }

/* ---------------- 线路 ---------------- */
.route-grid { display: grid; gap: 16px; }
.route-card {
  position: relative; border-radius: var(--radius); overflow: hidden;
  background: var(--blue-800); color: #fff; padding: 24px 20px;
}
.route-card::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 88% 12%, rgba(46,143,224,.4), transparent 42%),
    radial-gradient(circle at 8% 95%, rgba(243,152,0,.28), transparent 40%);
}
.route-card:nth-child(2) { background: var(--blue-700); }
.route-card:nth-child(3) { background: linear-gradient(140deg, var(--blue-900), var(--blue-700)); }
.route-hot { outline: 2.5px solid var(--orange); outline-offset: -1px; }
.route-flag {
  position: absolute; top: 12px; right: 12px; z-index: 2;
  background: var(--orange); color: #fff; font-size: 13px; font-weight: 700;
  padding: 3px 10px; border-radius: 999px; box-shadow: 0 3px 10px rgba(0,0,0,.25);
}
.route-name { position: relative; font-size: 17.5px; font-weight: 800; padding-right: 30px; }
.route-days { position: relative; display: flex; align-items: baseline; gap: 7px; margin-top: 10px; }
.route-days .num { font-size: 42px; font-weight: 800; color: var(--orange); line-height: 1; letter-spacing: .01em; }
.route-days .unit { font-size: 15px; color: #C4DCF2; }
.route-from { position: relative; margin-top: 10px; font-size: 15px; font-weight: 600; color: #EAF4FD; }
.route-desc { position: relative; margin-top: 6px; font-size: 14px; color: #B9D4EE; }
.route-nodes { position: relative; margin-top: 14px; display: flex; flex-wrap: wrap; gap: 6px; }
.route-nodes span {
  font-size: 12px; font-weight: 600; color: #EAF4FD;
  background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.22);
  padding: 3px 10px; border-radius: 999px;
}
.route-map { margin-top: 28px; text-align: center; }
.route-map img { border-radius: var(--radius); box-shadow: var(--shadow); }
.route-map figcaption { margin-top: 10px; font-size: 13.5px; color: var(--gray-600); }

/* ---------------- 案例 ---------------- */
.case-grid { display: grid; gap: 22px; }
.case-card {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius); overflow: hidden; backdrop-filter: blur(6px);
  display: flex; flex-direction: column;
}
.case-media { position: relative; aspect-ratio: 16/8.6; overflow: hidden; }
.case-media img { width: 100%; height: 100%; object-fit: cover; }
.case-tag {
  position: absolute; top: 12px; left: 12px;
  background: var(--orange); color: #fff; font-size: 12px; font-weight: 800;
  padding: 4px 12px; border-radius: 999px; letter-spacing: .05em;
}
.case-body { padding: 20px 18px 22px; flex: 1; display: flex; flex-direction: column; }
.case-title { font-size: 18.5px; font-weight: 800; line-height: 1.4; }
.case-desc { margin-top: 9px; font-size: 14.5px; color: #C4DCF2; flex: 1; }
.case-kpis { margin-top: 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.kpi {
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14);
  border-radius: 12px; padding: 12px 12px; text-align: center;
}
.kpi .v { font-size: 19px; font-weight: 800; color: var(--orange); }
.kpi .l { font-size: 12px; color: #B9D4EE; margin-top: 3px; line-height: 1.45; }

/* ---------------- 资源 ---------------- */
.res-grid { display: grid; gap: 14px; }
.res-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 18px; box-shadow: 0 4px 16px rgba(10,61,116,.06);
}
.res-card .t {
  font-size: 17.5px; font-weight: 800; color: var(--blue-800);
  display: flex; align-items: center; gap: 10px;
}
.res-card .ic {
  width: 38px; height: 38px; flex: none; border-radius: 11px;
  background: linear-gradient(135deg, var(--blue-100), var(--blue-050));
  display: flex; align-items: center; justify-content: center;
}
.res-card .ic svg { width: 20px; height: 20px; stroke: var(--blue-700); }
.res-card .d { margin-top: 9px; font-size: 15px; color: var(--gray-600); }
.res-gallery { margin-top: 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.res-gallery img { border-radius: 12px; aspect-ratio: 4/3; object-fit: cover; box-shadow: var(--shadow); }

/* ---------------- 合作横幅 / 联系照片 ---------------- */
.coop-banner { margin: 26px 0 6px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.coop-banner img { display: block; width: 100%; aspect-ratio: 21/9; object-fit: cover; }
.contact-photo { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); margin-bottom: 16px; }
.contact-photo img { display: block; width: 100%; aspect-ratio: 16/9; object-fit: cover; }

/* ---------------- 返回顶部 ---------------- */
.to-top {
  position: fixed; right: 16px; bottom: calc(var(--bar-h) + 14px); z-index: 60;
  width: 46px; height: 46px; border-radius: 50%; border: none; cursor: pointer;
  background: var(--blue-800); color: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 20px rgba(7, 42, 78, .35);
  opacity: 0; visibility: hidden; transform: translateY(14px);
  transition: opacity .25s, transform .25s, visibility .25s;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:active { background: var(--orange); }
.to-top svg { width: 22px; height: 22px; }
@media (min-width: 900px) {
  .to-top { bottom: 28px; right: 28px; width: 50px; height: 50px; }
}

/* ---------------- 锚点偏移（sticky导航+胶囊导航） ---------------- */
section[id] { scroll-margin-top: calc(var(--nav-h) + 52px); }
@media (min-width: 900px) { section[id] { scroll-margin-top: calc(var(--nav-h) + 10px); } }

/* ---------------- 无障碍：减少动效 ---------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .to-top { transition: none; }
  * { animation-duration: .001s !important; }
}
.honor-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.honor-chips span {
  background: var(--white); border: 1px solid var(--line); color: var(--blue-800);
  font-size: 14px; font-weight: 600; padding: 9px 16px; border-radius: 999px;
}

/* ---------------- 合作伙伴 ---------------- */
.partner-chips { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.partner-chips span {
  background: var(--white); border: 1px solid var(--line);
  font-size: 15px; font-weight: 700; color: var(--blue-800);
  padding: 12px 22px; border-radius: 12px; box-shadow: 0 3px 12px rgba(10,61,116,.06);
}
.partner-chips span.hl { background: var(--blue-800); color: #fff; border-color: var(--blue-800); }

/* ---------------- 共赢 ---------------- */
.coop-grid { display: grid; gap: 16px; }
.coop-card {
  background: var(--white); border-radius: var(--radius); padding: 24px 20px;
  border: 1px solid var(--line); box-shadow: 0 4px 16px rgba(10,61,116,.06);
  position: relative; overflow: hidden;
}
.coop-num {
  font-size: 44px; font-weight: 800; line-height: 1;
  background: linear-gradient(135deg, var(--blue-100), #fff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  position: absolute; top: 10px; right: 16px; opacity: .9;
}
.coop-card .t { font-size: 18.5px; font-weight: 800; color: var(--blue-900); }
.coop-card .d { margin-top: 8px; font-size: 15px; color: var(--gray-600); }
.value-strip {
  margin-top: 26px; display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
}
.value-strip span {
  font-size: 14px; font-weight: 700; color: var(--blue-700);
  background: var(--blue-100); border-radius: 999px; padding: 9px 18px;
}

/* ---------------- 联系 ---------------- */
.section-contact { background: linear-gradient(170deg, var(--blue-050), #fff); }
.contact-grid { display: grid; gap: 18px; }
.contact-cards { display: grid; gap: 14px; }
.person-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 20px; box-shadow: var(--shadow);
}
.person-top { display: flex; align-items: center; gap: 14px; }
.avatar {
  width: 52px; height: 52px; border-radius: 50%; flex: none;
  background: linear-gradient(135deg, var(--blue-700), var(--blue-500));
  color: #fff; font-size: 20px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.person-name { font-size: 19px; font-weight: 800; color: var(--blue-900); }
.person-role { font-size: 13.5px; color: var(--gray-600); margin-top: 2px; }
.person-links { margin-top: 16px; display: grid; gap: 9px; }
.person-links a {
  display: flex; align-items: center; gap: 10px;
  font-size: 15.5px; font-weight: 600; color: var(--blue-700);
  background: var(--blue-050); border-radius: 10px; padding: 11px 14px;
}
.person-links a:active { background: var(--blue-100); }
.person-links svg { width: 17px; height: 17px; flex: none; }
.contact-side { display: grid; gap: 14px; align-content: start; }
.contact-info {
  background: var(--blue-800); color: #fff; border-radius: var(--radius);
  padding: 22px 20px; display: grid; gap: 16px;
}
.c-label { font-size: 12.5px; letter-spacing: .16em; color: var(--orange); font-weight: 700; text-transform: uppercase; }
.c-value { font-size: 15.5px; color: #EAF4FD; margin-top: 5px; line-height: 1.65; }
.c-value a { color: #fff; font-weight: 700; text-decoration: underline; text-underline-offset: 4px; }
.qr-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; display: flex; gap: 16px; align-items: center; box-shadow: var(--shadow);
}
.qr-card img { width: 108px; height: 108px; object-fit: contain; border-radius: 10px; border: 1px solid var(--line); }
.qr-title { font-size: 16.5px; font-weight: 800; color: var(--blue-900); }
.qr-sub { font-size: 13.5px; color: var(--gray-600); margin-top: 4px; }

/* ---------------- 页脚 ---------------- */
.footer { background: var(--blue-900); color: #fff; text-align: center; padding: 40px 0 calc(26px + var(--bar-h)); }
.footer-logo { height: 30px; margin: 0 auto 14px; width: auto; }
.footer-slogan { font-size: 15px; font-weight: 700; color: var(--orange); letter-spacing: .1em; }
.footer-copy { margin-top: 10px; font-size: 13px; color: #8FB0CE; }

/* ---------------- 底部操作栏 ---------------- */
.action-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
  height: var(--bar-h); display: grid; grid-template-columns: repeat(4, 1fr);
  background: rgba(7, 42, 78, .97); backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255,255,255,.12);
  padding-bottom: env(safe-area-inset-bottom);
}
.ab-item {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  color: #DCE9F7; font-size: 11.5px; font-weight: 600; cursor: pointer;
  background: none; border: none; font-family: var(--font);
}
.ab-item svg { width: 21px; height: 21px; }
.ab-item:active { color: var(--orange); }
.ab-item:nth-child(1) { color: #fff; background: linear-gradient(180deg, var(--orange), var(--orange-deep)); }

/* ---------------- 二维码弹窗 ---------------- */
.qr-modal {
  position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center;
  visibility: hidden; opacity: 0; transition: opacity .25s, visibility .25s; padding: 24px;
}
.qr-modal.show { visibility: visible; opacity: 1; }
.qr-modal-bg { position: absolute; inset: 0; background: rgba(7, 27, 48, .78); backdrop-filter: blur(4px); }
.qr-modal-body {
  position: relative; background: #fff; border-radius: 20px; padding: 30px 26px 26px;
  text-align: center; max-width: 320px; width: 100%;
  transform: translateY(14px); transition: transform .25s;
  box-shadow: var(--shadow-lg);
}
.qr-modal.show .qr-modal-body { transform: translateY(0); }
.qr-modal-body img { width: 210px; height: 210px; object-fit: contain; margin: 0 auto; border: 1px solid var(--line); border-radius: 12px; }
.qr-modal-body .qr-title { margin-top: 16px; }
.qr-close {
  position: absolute; top: 10px; right: 12px; width: 34px; height: 34px;
  border: none; background: var(--blue-050); color: var(--gray-600);
  border-radius: 50%; font-size: 15px; cursor: pointer;
}

/* ---------------- 动效 ---------------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------------- 平板 ---------------- */
@media (min-width: 640px) {
  body { font-size: 17px; }
  .stats-grid { grid-template-columns: repeat(6, 1fr); gap: 16px 10px; }
  .adv-grid, .loc-grid, .res-grid { grid-template-columns: repeat(2, 1fr); }
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .route-grid { grid-template-columns: repeat(3, 1fr); }
  .coop-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-cards { grid-template-columns: repeat(2, 1fr); }
  .about-photo { grid-template-columns: 1fr 1fr; }
  .res-gallery img { aspect-ratio: 16/10; }
}

/* ---------------- 桌面 ---------------- */
@media (min-width: 900px) {
  :root { --nav-h: 72px; }
  body { font-size: 17.5px; padding-bottom: 0; }
  .nav-links { display: flex; }
  .hero { padding-bottom: 90px; }
  .hero-scroll { bottom: 30px; }
  .action-bar { display: none; }
  .footer { padding-bottom: 40px; }
  .about-grid { grid-template-columns: 1.05fr 1fr; align-items: start; }
  .about-photo { grid-template-columns: 1fr; }
  .adv-grid { grid-template-columns: repeat(4, 1fr); }
  .svc-grid { grid-template-columns: repeat(3, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1.2fr .8fr; }
  .contact-side { grid-template-columns: 1fr; }
  .coop-grid { grid-template-columns: repeat(4, 1fr); }
  .res-gallery { grid-template-columns: repeat(4, 1fr); }
  .bri-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .bri-policy { grid-template-columns: repeat(3, 1fr); }
  .route-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .section { padding: 88px 0; }
  .sub-title { font-size: 23px; margin-top: 64px; }
}

/* ============================================================
   追加：语言菜单 / 工具区 / 询价表单 / 动态元素
   ============================================================ */

/* ---- 关于页徽章 & 服务图标 ---- */
.about-marks { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.mark-chip {
  display: inline-flex; align-items: center; padding: 7px 13px;
  border-radius: 999px; background: var(--blue-050); border: 1px solid var(--line);
  color: var(--blue-800); font-size: 13px; font-weight: 600; line-height: 1.4;
}
.media-icon {
  width: 100%; aspect-ratio: 16 / 10; border-radius: 12px 12px 0 0;
  background: linear-gradient(135deg, var(--blue-800) 0%, var(--blue-600) 100%);
  display: flex; align-items: center; justify-content: center;
}
.media-icon svg {
  width: 64px; height: 64px; max-width: 40%;
  stroke: #fff; fill: none; stroke-linecap: round; stroke-linejoin: round;
}

/* ---- 运费估算器 / 班列时刻 ---- */
.tools-grid { display: grid; grid-template-columns: 1fr; gap: 18px; margin-top: 28px; }
.calc-card, .sched-card {
  background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 22px 20px; border: 1px solid var(--line);
}
.calc-title { font-size: 19px; font-weight: 800; color: var(--blue-800); margin-bottom: 16px; }
.calc-form { display: grid; grid-template-columns: 1fr; gap: 12px; }
.fld { display: flex; flex-direction: column; gap: 6px; }
.fld > span { font-size: 13px; font-weight: 600; color: var(--gray-600); }
.fld select, .fld input, .fld textarea {
  width: 100%; padding: 11px 12px; border: 1.5px solid var(--line); border-radius: 10px;
  font: inherit; font-size: 15px; color: var(--ink); background: var(--blue-050);
  transition: border-color .2s, background .2s; -webkit-appearance: none; appearance: none;
}
.fld select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235B7186' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; padding-right: 34px;
}
.fld input:focus, .fld select:focus, .fld textarea:focus {
  outline: none; border-color: var(--blue-600); background: var(--white);
}
.qty-row { display: grid; grid-template-columns: 1fr 96px; gap: 8px; }
.calc-btn { margin-top: 4px; width: 100%; }
.calc-result { margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--line); }
.cr-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.cr-item {
  background: var(--blue-050); border-radius: 12px; padding: 14px 12px; text-align: center;
}
.cr-label { font-size: 12.5px; color: var(--gray-600); font-weight: 600; margin-bottom: 4px; }
.cr-value { font-size: 22px; font-weight: 800; color: var(--blue-800); line-height: 1.2; }
.cr-note { margin-top: 12px; font-size: 12px; color: var(--gray-600); line-height: 1.6; }
.calc-result .btn-cta { display: block; text-align: center; margin-top: 14px; }
.sched-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.sched-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 460px; }
.sched-table th {
  text-align: left; padding: 10px 12px; font-size: 12.5px; letter-spacing: .04em;
  color: var(--gray-600); border-bottom: 2px solid var(--line); white-space: nowrap;
}
.sched-table td {
  padding: 12px; border-bottom: 1px solid var(--line); color: var(--ink);
  vertical-align: top; line-height: 1.5;
}
.sched-table tbody tr:last-child td { border-bottom: none; }
.sched-table tr.hot td { background: linear-gradient(90deg, rgba(243,152,0,.10), transparent); }
.sched-table tr.hot td:first-child { border-left: 3px solid var(--orange); }
.sched-table .td-days { font-weight: 700; color: var(--blue-800); white-space: nowrap; }

/* ---- 在线询价表单 ---- */
.inq-card {
  background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-lg);
  border: 1px solid var(--line); padding: 26px 20px; margin-top: 28px;
}
.inq-title { font-size: 22px; font-weight: 800; color: var(--blue-800); }
.inq-sub { margin: 8px 0 20px; font-size: 14.5px; color: var(--gray-600); line-height: 1.7; }
.inq-grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
.inq-grid .fld-2 { grid-column: 1 / -1; }
.inq-actions { display: grid; grid-template-columns: 1fr; gap: 10px; margin-top: 18px; }
.inq-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 18px; border-radius: 12px; border: none; cursor: pointer;
  font: inherit; font-size: 15.5px; font-weight: 700; color: #fff;
  transition: transform .15s, box-shadow .15s, filter .15s;
}
.inq-btn:active { transform: scale(.97); }
.inq-wa { background: #1FA855; box-shadow: 0 6px 18px rgba(31,168,85,.30); }
.inq-wa:hover { filter: brightness(1.06); }
.inq-mail { background: var(--blue-700); box-shadow: 0 6px 18px rgba(13,77,143,.30); }
.inq-mail:hover { filter: brightness(1.1); }
.inq-copy {
  background: var(--blue-050); color: var(--blue-800); border: 1.5px solid var(--line);
}
.inq-copy:hover { background: var(--blue-100); }
.inq-tip { margin-top: 12px; font-size: 13.5px; color: var(--gray-600); min-height: 1.4em; }
.inq-tip.ok { color: #1FA855; font-weight: 600; }
.inq-tip.err { color: #D64545; font-weight: 600; }

/* ---- 线路网络图 ---- */
.netmap { margin-top: 16px; background: var(--white); border-radius: 12px; overflow: hidden; }
.netmap svg { display: block; width: 100%; height: auto; }

/* ---- 响应式 ---- */
@media (min-width: 720px) {
  .tools-grid { grid-template-columns: 1.05fr .95fr; gap: 22px; }
  .calc-form { grid-template-columns: 1fr 1fr; }
  .calc-form .fld-2 { grid-column: 1 / -1; }
  .calc-form .calc-btn { grid-column: 1 / -1; }
  .inq-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .inq-actions { grid-template-columns: 1fr 1fr 1fr; }
  .inq-card { padding: 32px 30px; }
  .calc-card, .sched-card { padding: 26px 24px; }
}
@media (max-width: 719px) {
  .calc-card, .sched-card { padding: 20px 16px; }
  .sched-table { font-size: 13px; }
  .cr-value { font-size: 19px; }
}