* { box-sizing: border-box; }
:root {
  --blue: #0b3a5b;
  --blue-2: #135d8a;
  --orange: #e57b25;
  --ink: #172330;
  --muted: #667483;
  --line: #dfe8ef;
  --soft: #f3f7fa;
  --white: #fff;
}
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  font-family: "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  line-height: 1.75;
  overflow-x: hidden;
  background: var(--white);
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.topbar { background: var(--blue); color: rgba(255,255,255,.8); font-size: 13px; }
.topbar .container { display: flex; justify-content: space-between; gap: 16px; padding: 8px 0; }
.header { position: sticky; top: 0; z-index: 30; background: var(--white); border-bottom: 1px solid var(--line); }
.nav-wrap { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand strong { display: block; color: var(--blue); font-size: 22px; line-height: 1.2; }
.brand span { display: block; color: var(--muted); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; margin-top: 4px; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a { padding: 25px 13px; font-size: 15px; color: #253241; }
.nav-links a:hover { color: var(--orange); }
.nav-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: #fff; color: var(--blue); font-size: 24px; cursor: pointer; }
.hero {
  min-height: 620px;
  display: flex;
  align-items: center;
  color: var(--white);
  background: linear-gradient(90deg, rgba(4,25,44,.9), rgba(4,25,44,.55), rgba(4,25,44,.12)), url("../images/hero-logistics.jpg") center / cover no-repeat;
}
.page-hero {
  padding: 92px 0;
  color: #fff;
  background: linear-gradient(90deg, rgba(4,25,44,.92), rgba(4,25,44,.52)), url("../images/hero-logistics.jpg") center / cover no-repeat;
}
.page-hero h1 {
  margin: 14px 0 10px;
  font-size: clamp(34px, 5vw, 50px);
  line-height: 1.18;
  word-break: break-all;
}
.page-hero p { max-width: 720px; margin: 0; color: rgba(255,255,255,.88); font-size: 17px; }
.hero-box { max-width: 760px; padding: 82px 0; }
.tag { display: inline-flex; align-items: center; gap: 12px; color: #ffd7a7; font-size: 14px; letter-spacing: .1em; text-transform: uppercase; overflow-wrap: anywhere; }
.tag::before { content: ""; width: 40px; height: 2px; background: var(--orange); }
.hero h1 { margin: 20px 0 18px; font-size: clamp(36px, 5.5vw, 60px); line-height: 1.14; letter-spacing: 0; word-break: break-all; }
.hero p { max-width: 680px; margin: 0 0 30px; color: rgba(255,255,255,.88); font-size: 18px; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; }
.btn { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; padding: 0 22px; border: 1px solid transparent; font-weight: 700; }
.btn.primary { background: var(--orange); color: #fff; }
.btn.primary:hover { background: #c86617; }
.btn.light { color: #fff; border-color: rgba(255,255,255,.55); }
.section { padding: 78px 0; }
.section.soft { background: var(--soft); }
.head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 34px; }
.head h2 { margin: 0; color: var(--blue); font-size: 34px; line-height: 1.25; }
.head p { margin: 0; max-width: 560px; color: var(--muted); }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--line); }
.metric { padding: 30px 26px; border-right: 1px solid var(--line); }
.metric:last-child { border-right: 0; }
.metric strong { display: block; color: var(--blue); font-size: 32px; line-height: 1.2; }
.metric span { color: var(--muted); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card { border: 1px solid var(--line); background: #fff; border-radius: 6px; overflow: hidden; }
.card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.card div { padding: 24px; }
.card h3 { margin: 0 0 10px; color: var(--blue); font-size: 21px; }
.card p { margin: 0; color: var(--muted); }
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: step; }
.process li { list-style: none; padding: 24px; background: #fff; border: 1px solid var(--line); border-radius: 6px; color: var(--muted); }
.process li::before { counter-increment: step; content: "0" counter(step); display: block; color: var(--orange); font-size: 28px; font-weight: 800; margin-bottom: 8px; }
.split { display: grid; grid-template-columns: .95fr 1.05fr; gap: 38px; align-items: center; }
.split img { width: 100%; border-radius: 6px; aspect-ratio: 4 / 3; object-fit: cover; }
.split h2 { margin: 0 0 18px; color: var(--blue); font-size: 32px; }
.split p { color: var(--muted); margin: 0 0 12px; }
.article { max-width: 920px; margin: 0 auto; }
.article h2 { margin: 0 0 16px; color: var(--blue); font-size: 30px; }
.article h3 { margin: 28px 0 10px; color: var(--blue); font-size: 21px; }
.article p { margin: 0 0 14px; color: #435466; }
.article ul { margin: 0 0 18px; padding: 0; list-style: none; }
.article li { position: relative; padding-left: 18px; margin-bottom: 10px; color: #435466; }
.article li::before { content: ""; position: absolute; left: 0; top: 12px; width: 6px; height: 6px; background: var(--orange); }
.contact-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.contact-box { padding: 28px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.contact-box h2, .contact-box h3 { margin: 0 0 14px; color: var(--blue); }
.contact-box p { margin: 0 0 10px; color: var(--muted); }
.form { display: grid; gap: 12px; }
.form input, .form textarea { width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 4px; font: inherit; }
.form textarea { min-height: 116px; resize: vertical; }
.contact { color: #fff; background: linear-gradient(90deg, rgba(11,58,91,.95), rgba(19,93,138,.88)), url("../images/fleet.jpg") center / cover no-repeat; }
.contact .head h2, .contact .head p { color: #fff; }
.footer { background: #071d2d; color: rgba(255,255,255,.72); padding: 28px 0; }
.footer .container { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
@media (max-width: 900px) {
  .topbar { display: none; }
  .nav-wrap { min-height: 68px; }
  .brand strong { font-size: 18px; }
  .brand span { display: none; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; position: absolute; right: 14px; top: 13px; z-index: 40; }
  .nav-links { display: none; position: absolute; left: 0; right: 0; top: 68px; flex-direction: column; align-items: stretch; background: #fff; border-bottom: 1px solid var(--line); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 20px; border-top: 1px solid var(--line); }
  .hero { min-height: 560px; }
  .hero h1 { font-size: 32px; }
  .metrics, .grid-3, .process, .split, .contact-panel { grid-template-columns: 1fr; }
  .metric { border-right: 0; border-bottom: 1px solid var(--line); }
  .head { display: block; }
  .head h2 { font-size: 28px; margin-bottom: 10px; }
}
@media (max-width: 560px) {
  .container { width: min(100% - 28px, 1180px); }
  .hero h1 { font-size: 28px; }
  .hero p { font-size: 16px; }
  .tag { font-size: 12px; letter-spacing: .06em; }
  .section { padding: 58px 0; }
}