/* ==========================================================================
   四川拓达朗途物流有限公司 · 企业官网样式
   设计令牌 + 组件库，纯 CSS，无第三方依赖
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计令牌
   -------------------------------------------------------------------------- */
:root {
  /* 深墨蓝（品牌主色系） */
  --ink-900: #08182A;
  --ink-800: #0C2136;
  --ink-700: #123047;
  --ink-600: #1B4260;

  /* 品牌蓝 */
  --brand-800: #0B3F76;
  --brand-700: #0F4C8C;
  --brand-600: #125AA8;
  --brand-500: #1E6FC4;
  --brand-200: #C6DCF4;
  --brand-100: #E7F0FA;
  --brand-050: #F3F8FD;

  /* 强调橙（干线/路线） */
  --accent-700: #C94A02;
  --accent-600: #E85D04;
  --accent-500: #FF7A1A;
  --accent-200: #FFD9BC;
  --accent-100: #FFF1E5;

  /* 辅助青（网络/数据） */
  --teal-600: #0E8C82;
  --teal-100: #E3F5F3;

  /* 中性 */
  --bg: #F4F7FB;
  --bg-2: #EDF2F9;
  --surface: #FFFFFF;
  --surface-2: #F7FAFD;
  --line: #E3EAF4;
  --line-2: #D3DEEE;
  --text: #0D1B2B;
  --muted: #586A80;
  --faint: #8A9AAD;

  /* 阴影 */
  --sh-xs: 0 1px 2px rgba(8, 24, 42, .06);
  --sh-sm: 0 2px 8px rgba(8, 24, 42, .06);
  --sh-md: 0 14px 34px -14px rgba(8, 24, 42, .22);
  --sh-lg: 0 30px 64px -26px rgba(8, 24, 42, .32);

  /* 圆角 */
  --r-xs: 8px;
  --r-sm: 12px;
  --r-md: 16px;
  --r-lg: 22px;
  --r-xl: 30px;

  /* 尺寸 */
  --container: 1200px;
  --gutter: 24px;
  --header-h: 74px;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --font: "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* --------------------------------------------------------------------------
   2. 基础重置
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px);
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 700; line-height: 1.28; letter-spacing: -.01em; }
p { margin: 0; }
table { border-collapse: collapse; width: 100%; }
input, select, textarea { font: inherit; color: inherit; }

:focus-visible {
  outline: 3px solid rgba(30, 111, 196, .38);
  outline-offset: 2px;
  border-radius: 6px;
}

::selection { background: var(--accent-200); color: var(--ink-900); }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

/* --------------------------------------------------------------------------
   3. 布局工具
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section { padding: 92px 0; position: relative; }
.section--tight { padding: 64px 0; }
.section--soft { background: var(--bg-2); }
.section--white { background: var(--surface); }
.section--ink {
  background: linear-gradient(165deg, var(--ink-900) 0%, var(--ink-800) 52%, var(--ink-700) 100%);
  color: #EAF1F9;
}
.section--ink h2, .section--ink h3, .section--ink h4 { color: #FFFFFF; }
.section--ink .lead, .section--ink p { color: rgba(226, 236, 247, .82); }

.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--gap-sm { gap: 16px; }
.grid--gap-lg { gap: 32px; }

.split { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, .95fr); gap: 44px; align-items: start; }
.split--rev { grid-template-columns: minmax(0, .95fr) minmax(0, 1.35fr); }

.stack-8 > * + * { margin-top: 8px; }
.stack-16 > * + * { margin-top: 16px; }
.stack-24 > * + * { margin-top: 24px; }

/* 图标 */
.i {
  width: 22px; height: 22px; flex: none;
  fill: none; stroke: currentColor;
  stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}
.i--sm { width: 17px; height: 17px; stroke-width: 2; }
.i--lg { width: 26px; height: 26px; }
.i--xl { width: 34px; height: 34px; stroke-width: 1.6; }

/* 跳转链接 */
.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 200;
  padding: 10px 18px; border-radius: 0 0 var(--r-sm) var(--r-sm);
  background: var(--brand-600); color: #fff; font-size: 14px;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 0; }

/* 滚动进度条 */
.progress {
  position: fixed; inset: 0 auto auto 0; height: 3px; width: 0;
  z-index: 120; background: linear-gradient(90deg, var(--accent-500), var(--accent-600));
  transition: width .12s linear;
}

/* --------------------------------------------------------------------------
   4. 按钮 / 徽标 / 文本组件
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 24px; border: 1px solid transparent; border-radius: 999px;
  font-size: 15px; font-weight: 600; white-space: nowrap; cursor: pointer;
  transition: transform .18s var(--ease), background .18s var(--ease),
    border-color .18s var(--ease), box-shadow .18s var(--ease), color .18s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--accent { background: linear-gradient(180deg, #FF8836, var(--accent-600)); color: #fff; box-shadow: 0 10px 24px -10px rgba(232, 93, 4, .65); }
.btn--accent:hover { box-shadow: 0 16px 30px -12px rgba(232, 93, 4, .7); }

.btn--primary { background: var(--brand-600); color: #fff; box-shadow: 0 10px 24px -12px rgba(18, 90, 168, .7); }
.btn--primary:hover { background: var(--brand-700); }

.btn--outline { background: var(--surface); border-color: var(--line-2); color: var(--ink-700); }
.btn--outline:hover { border-color: var(--brand-500); color: var(--brand-700); background: var(--brand-050); }

.btn--ghost { background: rgba(255, 255, 255, .07); border-color: rgba(255, 255, 255, .26); color: #fff; }
.btn--ghost:hover { background: rgba(255, 255, 255, .15); }

.btn--link { padding: 6px 0; background: none; color: var(--brand-600); font-weight: 600; border: 0; }
.btn--link:hover { transform: none; color: var(--accent-600); }
.btn--sm { padding: 9px 16px; font-size: 14px; }
.btn--lg { padding: 16px 30px; font-size: 16px; }
.btn--block { width: 100%; }

.pill {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 13px; border-radius: 999px;
  font-size: 13px; font-weight: 600; line-height: 1.5;
  background: var(--brand-100); color: var(--brand-700);
}
.pill--accent { background: var(--accent-100); color: var(--accent-700); }
.pill--teal { background: var(--teal-100); color: var(--teal-600); }
.pill--muted { background: var(--bg-2); color: var(--muted); }
.pill--glass { background: rgba(255, 255, 255, .1); color: #EAF1F9; border: 1px solid rgba(255, 255, 255, .18); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 12.5px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent-600);
}
.eyebrow::before {
  content: ""; width: 22px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--accent-500), var(--accent-600));
}
.section--ink .eyebrow { color: var(--accent-500); }

.lead { font-size: 17px; color: var(--muted); line-height: 1.8; }
.small { font-size: 13.5px; color: var(--faint); line-height: 1.7; }

.note {
  display: flex; gap: 10px; align-items: flex-start;
  margin-top: 16px; padding: 13px 16px;
  border-radius: var(--r-sm); border: 1px dashed var(--line-2);
  background: var(--surface-2);
  font-size: 13.5px; color: var(--muted); line-height: 1.7;
}
.note .i { color: var(--faint); margin-top: 2px; }
.section--ink .note { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .2); color: rgba(226, 236, 247, .8); }

/* 区块标题组 */
.shead { max-width: 720px; }
.shead--center { max-width: 760px; margin: 0 auto; text-align: center; }
.shead--center .eyebrow { justify-content: center; }
.shead__title { margin-top: 14px; font-size: clamp(25px, 3vw, 36px); }
.shead__lead { margin-top: 14px; }
.shead--center .shead__lead { margin-inline: auto; }

.shead__row { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; }

/* 勾选列表 */
.check-list { display: grid; gap: 10px; }
.check-list li { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; color: var(--muted); line-height: 1.7; }
.check-list li::before {
  content: ""; flex: none; width: 19px; height: 19px; margin-top: 4px;
  border-radius: 50%;
  background: var(--brand-100) url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23125AA8' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center/11px no-repeat;
}
.section--ink .check-list li { color: rgba(226, 236, 247, .82); }
.section--ink .check-list li::before { background-color: rgba(255, 255, 255, .14); }

/* 数据条 */
.metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.metric { background: var(--surface); padding: 24px 22px; }
.metric__num { font-size: 30px; font-weight: 800; color: var(--brand-700); letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.metric__num small { font-size: 15px; font-weight: 700; margin-left: 3px; color: var(--muted); }
.metric__label { margin-top: 4px; font-size: 13.5px; color: var(--muted); }
.section--ink .metrics { background: rgba(255, 255, 255, .14); border-color: rgba(255, 255, 255, .16); }
.section--ink .metric { background: rgba(255, 255, 255, .06); }
.section--ink .metric__num { color: #fff; }
.section--ink .metric__num small, .section--ink .metric__label { color: rgba(226, 236, 247, .72); }

/* --------------------------------------------------------------------------
   5. 顶栏 + 页头 + 抽屉导航
   -------------------------------------------------------------------------- */
.topbar {
  background: var(--ink-900); color: rgba(226, 236, 247, .78);
  font-size: 13px; border-bottom: 1px solid rgba(255, 255, 255, .07);
}
.topbar__inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 42px; }
.topbar__list { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.topbar__list li { display: inline-flex; align-items: center; gap: 8px; }
.topbar__list .i { color: var(--accent-500); stroke-width: 1.9; }
.topbar__meta { display: inline-flex; align-items: center; gap: 8px; color: rgba(226, 236, 247, .62); }

.site-header {
  position: sticky; top: 0; z-index: 90;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s var(--ease), background .25s var(--ease);
}
.site-header.is-stuck { box-shadow: 0 12px 30px -18px rgba(8, 24, 42, .35); }
.header__inner { display: flex; align-items: center; gap: 26px; min-height: var(--header-h); }

.brand { display: inline-flex; align-items: center; gap: 12px; flex: none; }
.brand__mark { width: 44px; height: 44px; border-radius: 13px; box-shadow: var(--sh-sm); }
.brand__name { font-size: 17px; font-weight: 800; color: var(--ink-800); letter-spacing: .01em; }
.brand__sub { font-size: 11px; color: var(--faint); letter-spacing: .1em; text-transform: uppercase; line-height: 1.4; }

.nav { display: flex; align-items: center; gap: 4px; margin-left: 10px; }
.nav__link {
  position: relative; padding: 10px 15px; border-radius: 10px;
  font-size: 15.5px; font-weight: 600; color: var(--muted);
  transition: color .2s var(--ease), background .2s var(--ease);
}
.nav__link::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 5px; height: 2px;
  border-radius: 2px; background: var(--accent-500);
  transform: scaleX(0); transform-origin: left; transition: transform .26s var(--ease);
}
.nav__link:hover { color: var(--ink-800); background: var(--brand-050); }
.nav__link.is-active { color: var(--ink-800); }
.nav__link.is-active::after { transform: scaleX(1); }

.header__actions { display: flex; align-items: center; gap: 16px; margin-left: auto; }
.header__phone { display: flex; flex-direction: column; line-height: 1.25; padding-right: 16px; border-right: 1px solid var(--line); }
.header__phone-label { font-size: 12px; color: var(--faint); }
.header__phone-num { font-size: 17px; font-weight: 800; color: var(--ink-800); font-variant-numeric: tabular-nums; }
.header__phone-num:hover { color: var(--brand-600); }

.nav-toggle {
  display: none; width: 44px; height: 44px; border-radius: 12px;
  border: 1px solid var(--line-2); background: var(--surface); color: var(--ink-700);
  align-items: center; justify-content: center; cursor: pointer;
}

.drawer { position: fixed; inset: 0; z-index: 110; visibility: hidden; }
.drawer.is-open { visibility: visible; }
.scrim { position: absolute; inset: 0; background: rgba(8, 24, 42, .5); opacity: 0; transition: opacity .28s var(--ease); }
.drawer.is-open .scrim { opacity: 1; }
.drawer__panel {
  position: absolute; top: 0; right: 0; height: 100%; width: min(360px, 88vw);
  display: flex; flex-direction: column;
  background: var(--surface); box-shadow: var(--sh-lg);
  transform: translateX(102%); transition: transform .32s var(--ease);
  overflow-y: auto;
}
.drawer.is-open .drawer__panel { transform: translateX(0); }
.drawer__head { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; border-bottom: 1px solid var(--line); }
.drawer__close { width: 40px; height: 40px; border-radius: 11px; border: 1px solid var(--line-2); background: var(--surface); cursor: pointer; display: grid; place-items: center; }
.drawer__nav { padding: 14px 12px; display: grid; gap: 4px; }
.drawer__nav a {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 13px 14px; border-radius: 12px; font-size: 16px; font-weight: 600; color: var(--ink-700);
}
.drawer__nav a:hover, .drawer__nav a.is-active { background: var(--brand-050); color: var(--brand-700); }
.drawer__nav a .i { color: var(--faint); }
.drawer__foot { margin-top: auto; padding: 20px; border-top: 1px solid var(--line); display: grid; gap: 12px; }
.drawer__foot .small { color: var(--muted); }

/* --------------------------------------------------------------------------
   6. 首屏
   -------------------------------------------------------------------------- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(160deg, var(--ink-900) 0%, var(--ink-800) 46%, var(--ink-700) 100%);
  color: #EAF1F9;
  padding: 74px 0 0;
  isolation: isolate;
}
.hero__glow {
  position: absolute; inset: -20% -10% auto auto; width: 62%; height: 110%;
  background: radial-gradient(closest-side, rgba(255, 122, 26, .3), transparent 72%);
  pointer-events: none; z-index: -1;
}
.hero__mesh {
  position: absolute; inset: 0; z-index: -2; opacity: .5;
  background-image:
    radial-gradient(rgba(255, 255, 255, .1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 30px 30px, 120px 120px, 120px 120px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
}
.hero__inner { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 56px; align-items: center; padding-bottom: 68px; }
.hero__badges { display: flex; flex-wrap: wrap; gap: 10px; }
.hero__title { margin-top: 20px; font-size: clamp(32px, 4.6vw, 54px); line-height: 1.16; letter-spacing: -.02em; color: #fff; }
.hero__title em {
  position: relative; font-style: normal; color: var(--accent-500); white-space: nowrap;
}
.hero__title em::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: .06em; height: .18em;
  background: linear-gradient(90deg, rgba(255, 122, 26, .5), rgba(255, 122, 26, .05));
  border-radius: 3px;
}
.hero__lead { margin-top: 20px; max-width: 620px; font-size: 16.5px; line-height: 1.85; color: rgba(226, 236, 247, .82); }
.hero__cta { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 14px; }
.hero__ticks { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 10px 26px; }
.hero__ticks li { display: inline-flex; align-items: center; gap: 9px; font-size: 14.5px; color: rgba(226, 236, 247, .86); }
.hero__ticks .i { color: var(--accent-500); }
.hero__note { margin-top: 26px; font-size: 13px; color: rgba(226, 236, 247, .55); }

/* 在途跟踪卡 */
.track-card {
  position: relative; padding: 24px; border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, .12), rgba(255, 255, 255, .04));
  border: 1px solid rgba(255, 255, 255, .18);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 34px 70px -34px rgba(0, 0, 0, .6);
}
.track-card__head { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding-bottom: 18px; border-bottom: 1px solid rgba(255, 255, 255, .14); }
.track-card__label { font-size: 13px; color: rgba(226, 236, 247, .7); }
.track-card__no { font-size: 15px; font-weight: 700; color: #fff; letter-spacing: .04em; }
.track-card__live { display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px; font-weight: 600; color: var(--accent-500); }
.track-card__live i { width: 7px; height: 7px; border-radius: 50%; background: currentColor; box-shadow: 0 0 0 0 rgba(255, 122, 26, .6); animation: pulse 2.4s infinite; }
@keyframes pulse {
  70% { box-shadow: 0 0 0 9px rgba(255, 122, 26, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 122, 26, 0); }
}
.track-steps { display: grid; gap: 4px; padding: 18px 0 6px; }
.track-step { position: relative; display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 12px; padding-bottom: 18px; }
.track-step:last-child { padding-bottom: 0; }
.track-step::before {
  content: ""; position: absolute; left: 13px; top: 26px; bottom: 2px; width: 1.5px;
  background: rgba(255, 255, 255, .22);
}
.track-step:last-child::before { display: none; }
.track-step__dot {
  width: 27px; height: 27px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(255, 255, 255, .1); border: 1.5px solid rgba(255, 255, 255, .26);
  color: rgba(226, 236, 247, .6); z-index: 1;
}
.track-step.is-done .track-step__dot { background: var(--accent-500); border-color: var(--accent-500); color: #fff; }
.track-step.is-now .track-step__dot { background: #fff; border-color: #fff; color: var(--accent-600); }
.track-step__title { font-size: 15px; font-weight: 600; color: #fff; }
.track-step__meta { font-size: 12.5px; color: rgba(226, 236, 247, .62); }
.track-card__meta { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, .14); }
.track-meta__k { font-size: 12px; color: rgba(226, 236, 247, .6); }
.track-meta__v { margin-top: 3px; font-size: 14.5px; font-weight: 700; color: #fff; }
.track-card__foot { margin-top: 18px; font-size: 12.5px; color: rgba(226, 236, 247, .55); text-align: center; }

/* 首屏数据条 */
.hero__stats { position: relative; border-top: 1px solid rgba(255, 255, 255, .1); background: rgba(0, 0, 0, .18); }
.hero__stats .metrics { border: 0; background: rgba(255, 255, 255, .12); border-radius: 0; grid-template-columns: repeat(6, minmax(0, 1fr)); }
.hero__stats .metric { background: transparent; padding: 22px 18px; }
.hero__stats .metric__num { color: #fff; font-size: 27px; }
.hero__stats .metric__num small { color: var(--accent-500); }
.hero__stats .metric__label { color: rgba(226, 236, 247, .68); }

/* 内页页头 */
.page-hero {
  position: relative; overflow: hidden; isolation: isolate;
  background: linear-gradient(155deg, var(--ink-900) 0%, var(--ink-800) 55%, var(--ink-700) 100%);
  color: #EAF1F9; padding: 54px 0 58px;
}
.page-hero__glow {
  position: absolute; right: -6%; top: -60%; width: 46%; height: 200%;
  background: radial-gradient(closest-side, rgba(255, 122, 26, .26), transparent 70%);
  pointer-events: none; z-index: -1;
}
.page-hero__inner { max-width: 860px; }
.page-hero h1 { font-size: clamp(28px, 3.8vw, 44px); color: #fff; letter-spacing: -.02em; }
.page-hero__lead { margin-top: 16px; font-size: 16.5px; line-height: 1.85; color: rgba(226, 236, 247, .8); max-width: 760px; }
.page-hero__chips { margin-top: 22px; display: flex; flex-wrap: wrap; gap: 10px; }

.crumbs { display: flex; align-items: center; gap: 9px; font-size: 13.5px; color: rgba(226, 236, 247, .6); }
.crumbs a:hover { color: var(--accent-500); }
.crumbs .sep { opacity: .5; }
.crumbs__current { color: rgba(226, 236, 247, .92); font-weight: 600; }
.page-hero .crumbs { margin-bottom: 18px; }

/* --------------------------------------------------------------------------
   7. 卡片组件
   -------------------------------------------------------------------------- */
.card {
  position: relative; padding: 26px; overflow: hidden;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md);
  transition: transform .24s var(--ease), border-color .24s var(--ease), box-shadow .24s var(--ease);
}
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--accent-500), var(--brand-500));
  transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease);
}
.card:hover { transform: translateY(-5px); border-color: var(--brand-200); box-shadow: var(--sh-md); }
.card:hover::before { transform: scaleX(1); }
.card--flat:hover { transform: none; box-shadow: none; border-color: var(--line); }
.card--flat:hover::before { transform: scaleX(0); }

.card__icon {
  width: 52px; height: 52px; border-radius: 15px; display: grid; place-items: center;
  background: linear-gradient(180deg, var(--brand-100), #DCEAF9); color: var(--brand-700);
  margin-bottom: 18px;
}
.card__title { font-size: 19px; }
.card__text { margin-top: 12px; font-size: 15px; color: var(--muted); line-height: 1.8; }
.card__list { margin-top: 16px; }
.card__foot { margin-top: 20px; padding-top: 16px; border-top: 1px dashed var(--line-2); }
.card__kicker { font-size: 12.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-600); }

.card--ink { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .14); }
.card--ink .card__text { color: rgba(226, 236, 247, .78); }
.card--ink .card__icon { background: rgba(255, 122, 26, .16); color: var(--accent-500); }
.card--ink:hover { border-color: rgba(255, 122, 26, .45); box-shadow: none; background: rgba(255, 255, 255, .09); }

.card--num { padding-top: 22px; }
.card--num .card__idx {
  font-size: 13px; font-weight: 800; letter-spacing: .1em; color: var(--faint);
  font-variant-numeric: tabular-nums;
}

/* 服务卡（首页六宫格） */
.svc-card { display: flex; flex-direction: column; }
.svc-card .card__list { margin-top: 18px; }
.svc-card .card__more { margin-top: auto; padding-top: 18px; }

/* 服务详情（服务页交替行） */
.svc-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 36px; align-items: center; }
.svc-row + .svc-row { margin-top: 34px; padding-top: 34px; border-top: 1px solid var(--line); }
.svc-row--rev .svc-row__media { order: -1; }
.svc-row__head { display: flex; align-items: center; gap: 14px; }
.svc-row__icon { width: 54px; height: 54px; border-radius: 16px; display: grid; place-items: center; background: var(--brand-100); color: var(--brand-700); flex: none; }
.svc-row__title { font-size: 23px; }
.svc-row__idx { font-size: 12.5px; font-weight: 700; letter-spacing: .12em; color: var(--accent-600); }
.svc-row__text { margin-top: 16px; font-size: 15.5px; color: var(--muted); line-height: 1.85; }
.svc-row__panel { padding: 24px; border-radius: var(--r-md); background: var(--surface-2); border: 1px solid var(--line); }
.svc-row__panel dl { margin: 0; display: grid; gap: 14px; }
.svc-row__panel dt { font-size: 13px; font-weight: 700; color: var(--ink-700); }
.svc-row__panel dd { margin: 4px 0 0; font-size: 14.5px; color: var(--muted); line-height: 1.75; }
.svc-row__panel .split-line { height: 1px; background: var(--line); }

/* 数据卡 */
.data-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.data-cell { background: var(--surface); padding: 24px; }
.data-cell__k { font-size: 13px; color: var(--faint); }
.data-cell__v { margin-top: 6px; font-size: 22px; font-weight: 800; color: var(--ink-800); font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.data-cell__v small { font-size: 14px; color: var(--muted); font-weight: 700; margin-left: 3px; }

/* 区域卡 */
.region-card { display: flex; flex-direction: column; }
.region-card__top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.region-card__route { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 800; color: var(--ink-800); }
.region-card__route .i { color: var(--accent-600); }
.region-card__route i { font-style: normal; font-size: 12.5px; font-weight: 600; color: var(--faint); }
.region-card__desc { margin-top: 12px; font-size: 14.5px; color: var(--muted); line-height: 1.8; }
.region-card__tags { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  display: inline-flex; align-items: center; padding: 5px 11px; border-radius: 8px;
  background: var(--bg-2); color: var(--ink-700); font-size: 13.5px; font-weight: 600;
  border: 1px solid transparent;
  transition: background .18s var(--ease), color .18s var(--ease);
}
.tag:hover { background: var(--brand-100); color: var(--brand-700); }
.tag--hub { background: linear-gradient(180deg, #FF8836, var(--accent-600)); color: #fff; box-shadow: 0 6px 14px -8px rgba(232, 93, 4, .8); }

/* 城市云 */
.city-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.city-cloud .tag { padding: 9px 16px; font-size: 14.5px; border-radius: 10px; background: var(--surface); border-color: var(--line); }
.city-cloud .tag:hover { border-color: var(--brand-200); background: var(--brand-050); }
.city-cloud .tag--hub { border-color: transparent; }

/* 资讯卡 */
.article-card { display: flex; flex-direction: column; padding: 0; }
.article-card__banner {
  height: 6px; background: linear-gradient(90deg, var(--brand-500), var(--accent-500));
}
.article-card__body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.article-card__title { font-size: 18px; line-height: 1.5; }
.article-card__text { margin-top: 12px; font-size: 14.5px; color: var(--muted); line-height: 1.8; }
.article-card__foot { margin-top: auto; padding-top: 18px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.link-more { display: inline-flex; align-items: center; gap: 7px; font-size: 14.5px; font-weight: 700; color: var(--brand-600); }
.link-more .i { transition: transform .2s var(--ease); }
.link-more:hover { color: var(--accent-600); }
.link-more:hover .i { transform: translateX(4px); }

/* 信息块（联系页） */
.info-item { display: flex; gap: 16px; align-items: flex-start; }
.info-item__icon { width: 46px; height: 46px; border-radius: 14px; flex: none; display: grid; place-items: center; background: var(--brand-100); color: var(--brand-700); }
.info-item__label { font-size: 13px; color: var(--faint); }
.info-item__value { margin-top: 4px; font-size: 16.5px; font-weight: 700; color: var(--ink-800); line-height: 1.65; }
.info-item__value a:hover { color: var(--brand-600); }
.info-item__hint { margin-top: 4px; font-size: 13px; color: var(--muted); }

.aside-card { padding: 26px; border-radius: var(--r-md); background: linear-gradient(170deg, var(--ink-800), var(--ink-900)); color: #EAF1F9; }
.aside-card h3 { color: #fff; font-size: 18px; }
.aside-card p { margin-top: 10px; font-size: 14.5px; line-height: 1.8; color: rgba(226, 236, 247, .78); }
.aside-card__list { margin-top: 18px; display: grid; gap: 12px; }
.aside-card__list li { display: flex; gap: 10px; font-size: 14px; color: rgba(226, 236, 247, .86); }
.aside-card__list .i { color: var(--accent-500); }
.aside-card__divider { height: 1px; margin: 20px 0; background: rgba(255, 255, 255, .14); }

/* --------------------------------------------------------------------------
   8. 流程 / 时间轴
   -------------------------------------------------------------------------- */
.steps { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 20px; }
.step { position: relative; padding-top: 34px; }
.step::before {
  content: ""; position: absolute; top: 15px; left: 34px; right: -20px; height: 2px;
  background: repeating-linear-gradient(90deg, var(--line-2) 0 8px, transparent 8px 16px);
}
.step:last-child::before { display: none; }
.step__dot {
  position: absolute; top: 0; left: 0; width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center; font-size: 13px; font-weight: 800;
  background: var(--surface); border: 2px solid var(--accent-500); color: var(--accent-700);
  font-variant-numeric: tabular-nums;
}
.step--done .step__dot { background: var(--accent-500); color: #fff; border-color: var(--accent-500); }
.step__title { font-size: 17px; }
.step__text { margin-top: 10px; font-size: 14.5px; color: var(--muted); line-height: 1.8; }

.timeline { position: relative; padding-left: 30px; display: grid; gap: 30px; }
.timeline::before {
  content: ""; position: absolute; left: 9px; top: 6px; bottom: 6px; width: 2px;
  background: linear-gradient(180deg, var(--accent-500), var(--brand-200) 60%, transparent);
}
.tl-item { position: relative; }
.tl-item::before {
  content: ""; position: absolute; left: -30px; top: 7px; width: 20px; height: 20px; border-radius: 50%;
  background: var(--surface); border: 2px solid var(--accent-500);
  box-shadow: 0 0 0 5px var(--bg);
}
.tl-item__year { display: inline-flex; align-items: center; padding: 3px 11px; border-radius: 999px; background: var(--accent-100); color: var(--accent-700); font-size: 12.5px; font-weight: 800; letter-spacing: .04em; }
.tl-item__title { margin-top: 10px; font-size: 17.5px; }
.tl-item__text { margin-top: 8px; font-size: 14.5px; color: var(--muted); line-height: 1.8; }

/* --------------------------------------------------------------------------
   9. 表格
   -------------------------------------------------------------------------- */
.table-wrap { border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; background: var(--surface); box-shadow: var(--sh-xs); }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table { min-width: 680px; font-size: 14.5px; }
.table thead th {
  padding: 15px 18px; text-align: left; white-space: nowrap;
  background: var(--ink-800); color: #fff;
  font-size: 13.5px; font-weight: 700; letter-spacing: .03em;
}
.table tbody td { padding: 15px 18px; border-top: 1px solid var(--line); color: var(--muted); vertical-align: top; line-height: 1.75; }
.table tbody tr:nth-child(even) { background: var(--surface-2); }
.table tbody tr:hover { background: var(--brand-050); }
.table tbody td:first-child { color: var(--ink-800); font-weight: 700; }
.table--kv tbody td:first-child { width: 168px; white-space: nowrap; }
.table--kv tbody td:last-child { color: var(--ink-800); font-weight: 600; }
.table-scroll-hint { display: none; align-items: center; gap: 7px; padding: 10px 16px; font-size: 12.5px; color: var(--faint); border-top: 1px dashed var(--line-2); }

/* --------------------------------------------------------------------------
   10. 常见问题
   -------------------------------------------------------------------------- */
.faq { display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); overflow: hidden; transition: border-color .2s var(--ease), box-shadow .2s var(--ease); }
.faq-item.is-open { border-color: var(--brand-200); box-shadow: var(--sh-sm); }
.faq-item__q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding: 20px 22px; background: none; border: 0; cursor: pointer; text-align: left;
  font-size: 16.5px; font-weight: 700; color: var(--ink-800);
}
.faq-item__q:hover { color: var(--brand-700); }
.faq-item__tog { flex: none; width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; background: var(--bg-2); color: var(--brand-700); transition: transform .26s var(--ease), background .2s var(--ease); }
.faq-item.is-open .faq-item__tog { background: var(--brand-600); color: #fff; transform: rotate(45deg); }
.faq-item__panel { height: 0; overflow: hidden; transition: height .3s var(--ease); }
.faq-item__body { padding: 0 22px 22px; font-size: 15px; color: var(--muted); line-height: 1.85; }

/* --------------------------------------------------------------------------
   11. 表单
   -------------------------------------------------------------------------- */
.form-card {
  padding: 30px; border-radius: var(--r-lg); background: var(--surface);
  border: 1px solid var(--line); box-shadow: var(--sh-md);
}
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field--full { grid-column: 1 / -1; }
.field__label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 700; color: var(--ink-700); }
.field__req { color: var(--accent-600); font-style: normal; }
.input, .select, .textarea {
  width: 100%; padding: 13px 15px; border-radius: var(--r-sm);
  border: 1px solid var(--line-2); background: var(--surface-2); color: var(--ink-800);
  font-size: 15px; line-height: 1.6;
  transition: border-color .18s var(--ease), background .18s var(--ease), box-shadow .18s var(--ease);
}
.input::placeholder, .textarea::placeholder { color: var(--faint); }
.input:focus, .select:focus, .textarea:focus {
  outline: none; background: var(--surface);
  border-color: var(--brand-500); box-shadow: 0 0 0 4px rgba(30, 111, 196, .12);
}
.textarea { min-height: 122px; resize: vertical; }
.select { appearance: none; background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23586A80' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; background-size: 17px; padding-right: 42px; }
.field.is-invalid .input, .field.is-invalid .select, .field.is-invalid .textarea { border-color: #D64545; background: #FFF6F6; }
.field__error { display: none; margin-top: 7px; font-size: 13px; color: #C93A3A; }
.field.is-invalid .field__error { display: block; }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 24px; }
.form-success {
  display: none; gap: 12px; align-items: flex-start;
  margin-top: 20px; padding: 16px 18px; border-radius: var(--r-sm);
  background: var(--teal-100); border: 1px solid #BFE7E2; color: #0B6A62;
  font-size: 14.5px; line-height: 1.75;
}
.form-success.is-shown { display: flex; }
.form-error {
  display: none; gap: 12px; align-items: flex-start;
  margin-top: 20px; padding: 16px 18px; border-radius: var(--r-sm);
  background: #FDECEC; border: 1px solid #F3C6C6; color: #A5322F;
  font-size: 14.5px; line-height: 1.75;
}
.form-error.is-shown { display: flex; }
/* 反垃圾蜜罐字段：真人不可见，机器人会填 */
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* --------------------------------------------------------------------------
   12. CTA 区块
   -------------------------------------------------------------------------- */
.cta { position: relative; overflow: hidden; isolation: isolate; padding: 74px 0; background: linear-gradient(155deg, var(--ink-900), var(--ink-700)); color: #EAF1F9; }
.cta__glow { position: absolute; inset: auto -10% -60% auto; width: 60%; height: 160%; background: radial-gradient(closest-side, rgba(255, 122, 26, .28), transparent 70%); z-index: -1; pointer-events: none; }
.cta__inner { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 40px; align-items: center; }
.cta__title { font-size: clamp(24px, 3vw, 34px); color: #fff; letter-spacing: -.01em; }
.cta__text { margin-top: 14px; font-size: 16px; line-height: 1.85; color: rgba(226, 236, 247, .8); }
.cta__actions { display: flex; flex-wrap: wrap; gap: 14px; }
.cta__aside { display: grid; gap: 14px; padding: 24px; border-radius: var(--r-md); background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .16); }
.cta__aside-row { display: flex; gap: 12px; align-items: center; font-size: 15px; color: #EAF1F9; }
.cta__aside-row .i { color: var(--accent-500); }
.cta__aside-k { font-size: 12.5px; color: rgba(226, 236, 247, .62); }
.cta__aside-v { font-size: 16px; font-weight: 700; }

/* --------------------------------------------------------------------------
   13. 地图
   -------------------------------------------------------------------------- */
.map-card { padding: 18px; border-radius: var(--r-lg); background: var(--surface); border: 1px solid var(--line); box-shadow: var(--sh-md); }
.map-card__canvas { position: relative; height: 460px; border-radius: var(--r-md); overflow: hidden; background: var(--brand-050); }
.map-card__canvas #map { width: 100%; height: 100%; }
.map-fallback { height: 100%; display: grid; place-content: center; text-align: center; padding: 30px; }
.map-fallback strong { color: var(--ink-800); font-size: 16px; }
.map-fallback p { margin-top: 10px; font-size: 14px; color: var(--muted); line-height: 1.8; }
.map-legend { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 22px; padding: 16px 6px 2px; }
.map-legend__item { display: inline-flex; align-items: center; gap: 9px; font-size: 13.5px; color: var(--muted); }
.map-legend__dot { width: 11px; height: 11px; border-radius: 50%; }
.map-legend__line { width: 22px; height: 3px; border-radius: 2px; background: var(--accent-500); }
.map-legend__badge { margin-left: auto; font-size: 12.5px; color: var(--faint); }

/* --------------------------------------------------------------------------
   14. 页脚
   -------------------------------------------------------------------------- */
.site-footer { background: var(--ink-900); color: rgba(226, 236, 247, .74); padding: 62px 0 0; }
.footer__top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.4fr; gap: 40px; padding-bottom: 46px; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.footer__brand { display: flex; align-items: center; gap: 12px; }
.footer__brand .brand__name { color: #fff; }
.footer__brand .brand__sub { color: rgba(226, 236, 247, .5); }
.footer__desc { margin-top: 18px; font-size: 14px; line-height: 1.85; color: rgba(226, 236, 247, .66); max-width: 420px; }
.footer__badges { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.footer__title { font-size: 14.5px; font-weight: 700; color: #fff; letter-spacing: .02em; }
.footer__links { margin-top: 16px; display: grid; gap: 11px; }
.footer__links a { font-size: 14px; color: rgba(226, 236, 247, .7); transition: color .18s var(--ease), transform .18s var(--ease); display: inline-block; }
.footer__links a:hover { color: var(--accent-500); transform: translateX(3px); }
.footer__contact { margin-top: 16px; display: grid; gap: 14px; }
.footer__contact li { display: flex; gap: 11px; font-size: 14px; line-height: 1.75; color: rgba(226, 236, 247, .72); }
.footer__contact .i { color: var(--accent-500); margin-top: 3px; }
.footer__contact a:hover { color: #fff; }
.footer__bottom { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; padding: 22px 0; font-size: 13px; color: rgba(226, 236, 247, .5); }
.footer__bottom-links { display: flex; flex-wrap: wrap; gap: 20px; }
.footer__bottom a:hover { color: var(--accent-500); }

.to-top {
  position: fixed; right: 22px; bottom: 24px; z-index: 80;
  width: 46px; height: 46px; border-radius: 14px; border: 1px solid var(--line-2);
  background: var(--surface); color: var(--ink-700); display: grid; place-items: center;
  box-shadow: var(--sh-md); cursor: pointer;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
}
.to-top.is-shown { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { color: var(--accent-600); border-color: var(--accent-200); }

/* --------------------------------------------------------------------------
   15. 进场动画
   -------------------------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); will-change: opacity, transform; }
.reveal.is-visible { opacity: 1; transform: none; }

/* --------------------------------------------------------------------------
   16. 响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1180px) {
  .hero__stats .metrics { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .header__phone { display: none; }
}

@media (max-width: 1023px) {
  :root { --header-h: 66px; }
  .nav, .header__actions .btn { display: none; }
  .nav-toggle { display: flex; }
  .hero__inner { grid-template-columns: minmax(0, 1fr); gap: 40px; padding-bottom: 54px; }
  .track-card { max-width: 520px; }
  .split, .split--rev, .cta__inner, .svc-row { grid-template-columns: minmax(0, 1fr); gap: 30px; }
  .svc-row--rev .svc-row__media { order: 0; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step::before { display: none; }
  .footer__top { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
  .section { padding: 68px 0; }
  .data-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  :root { --gutter: 18px; }
  body { font-size: 15.5px; }
  .section { padding: 54px 0; }
  .hero { padding-top: 52px; }
  .hero__title { font-size: clamp(27px, 7.4vw, 34px); }
  .hero__lead, .page-hero__lead { font-size: 15.5px; }
  .hero__cta .btn, .cta__actions .btn { flex: 1 1 100%; }
  .hero__stats .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: minmax(0, 1fr); }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .data-grid { grid-template-columns: minmax(0, 1fr); }
  .form-grid { grid-template-columns: minmax(0, 1fr); }
  .form-card { padding: 22px 18px; }
  .card { padding: 22px 20px; }
  .footer__top { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .table-scroll-hint { display: flex; }
  .map-card { padding: 12px; }
  .map-card__canvas { height: 340px; }
  .topbar__list li:nth-child(2) { display: none; }
  .brand__mark { width: 38px; height: 38px; }
  .brand__name { font-size: 15.5px; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metric { padding: 18px; }
  .metric__num { font-size: 24px; }
}

@media (max-width: 420px) {
  .hero__stats .metrics { grid-template-columns: minmax(0, 1fr); }
  .grid--gap-sm { gap: 12px; }
}

/* --------------------------------------------------------------------------
   17. 无障碍与打印
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  .site-header, .topbar, .drawer, .to-top, .progress, .cta, .site-footer { display: none !important; }
  body { background: #fff; }
  .section { padding: 20px 0; }
}