:root {
  --ink: #17202a;
  --muted: #667085;
  --line: #e6eaf0;
  --paper: #ffffff;
  --soft: #f5f7fb;
  --primary: #0f6b63;
  --primary-strong: #0a4f49;
  --accent: #e28b35;
  --accent-soft: #fff3e6;
  --blue-soft: #eaf3ff;
  --green-soft: #e9f7f4;
  --shadow: 0 18px 50px rgba(20, 32, 45, .10);
  --radius: 8px;
  --max: 1160px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: Inter, "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.72;
  font-size: 16px;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(100% - 40px, var(--max)); margin: 0 auto; }
.skip-link { position: absolute; left: -999px; top: 12px; z-index: 99; background: var(--ink); color: #fff; padding: 10px 14px; border-radius: 6px; }
.skip-link:focus { left: 12px; }

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(230,234,240,.85);
}
.header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: flex; align-items: center; gap: 12px; min-width: 0; }
.logo-mark {
  width: 42px; height: 42px; border-radius: var(--radius);
  display: grid; place-items: center;
  color: #fff; background: linear-gradient(135deg, var(--primary), #178b7f);
  flex: 0 0 auto;
}
.logo-mark svg { width: 24px; height: 24px; }
.logo-title { font-weight: 800; letter-spacing: 0; line-height: 1.2; }
.logo-sub { display: block; color: var(--muted); font-size: 12px; font-weight: 500; margin-top: 2px; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { padding: 10px 13px; border-radius: 6px; color: #344054; font-weight: 600; font-size: 14px; }
.nav a:hover, .nav a.active { background: var(--green-soft); color: var(--primary-strong); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); background: #fff; border-radius: 6px; }
.menu-toggle span { display: block; width: 20px; height: 2px; margin: 5px auto; background: var(--ink); }

.hero {
  position: relative;
  min-height: calc(100dvh - 72px);
  display: flex;
  align-items: center;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(9, 38, 36, .88), rgba(9, 38, 36, .58), rgba(9, 38, 36, .18)),
    url("https://images.unsplash.com/photo-1607083206968-13611e3d76db?auto=format&fit=crop&w=1800&q=80") center/cover;
}
.hero .container { padding: 64px 0 52px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 7px 12px; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.28); border-radius: 999px; font-weight: 700; font-size: 13px; }
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
h1 { font-size: clamp(36px, 6vw, 72px); line-height: 1.08; letter-spacing: 0; max-width: 880px; margin: 20px 0 18px; }
.hero p { max-width: 720px; font-size: 18px; color: rgba(255,255,255,.88); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn {
  min-height: 46px; display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 12px 18px; border-radius: 7px; border: 1px solid transparent;
  font-weight: 750; cursor: pointer; transition: .18s ease; white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--accent); color: #1d1308; }
.btn-primary:hover { background: #f0a14f; transform: translateY(-1px); }
.btn-ghost { color: #fff; border-color: rgba(255,255,255,.55); background: rgba(255,255,255,.08); }
.btn-ghost:hover { background: rgba(255,255,255,.18); }
.btn-outline { color: var(--primary-strong); border-color: var(--primary); background: #fff; }
.btn-outline:hover { background: var(--green-soft); }
.hero-metrics { display: grid; grid-template-columns: repeat(4, minmax(130px, 1fr)); gap: 12px; margin-top: 46px; max-width: 860px; }
.metric { padding: 16px; border: 1px solid rgba(255,255,255,.22); background: rgba(255,255,255,.12); border-radius: var(--radius); }
.metric strong { display: block; font-size: 22px; line-height: 1.2; }
.metric span { color: rgba(255,255,255,.76); font-size: 13px; }

.section { padding: 76px 0; }
.section-soft { background: var(--soft); }
.section-head { max-width: 720px; margin-bottom: 34px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-kicker { color: var(--primary); font-weight: 800; font-size: 13px; margin-bottom: 8px; }
h2 { font-size: clamp(28px, 3.2vw, 42px); line-height: 1.18; letter-spacing: 0; margin-bottom: 12px; }
h3 { font-size: 20px; line-height: 1.3; margin-bottom: 8px; }
.lead { color: var(--muted); font-size: 17px; }
.grid-2 { display: grid; grid-template-columns: 1.05fr .95fr; gap: 38px; align-items: center; }
.media-frame { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: var(--soft); }
.media-frame img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.info-list { display: grid; gap: 12px; margin-top: 22px; }
.info-row { display: grid; grid-template-columns: 130px 1fr; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.info-row span { color: var(--muted); font-weight: 700; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: 0 8px 22px rgba(20, 32, 45, .05);
}
.icon {
  width: 42px; height: 42px; border-radius: 7px; display: grid; place-items: center;
  background: var(--green-soft); color: var(--primary); margin-bottom: 16px;
}
.icon svg { width: 22px; height: 22px; stroke-width: 2; }
.card p, .article-card p, .contact-card p { color: var(--muted); }
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.tag { padding: 8px 11px; border-radius: 999px; background: var(--blue-soft); color: #24527a; font-weight: 700; font-size: 13px; }

.page-hero {
  background: linear-gradient(135deg, #eff8f6, #fff7ee);
  border-bottom: 1px solid var(--line);
}
.page-hero .container { padding: 58px 0 46px; }
.breadcrumb { color: var(--muted); font-size: 14px; margin-bottom: 12px; }
.breadcrumb a { color: var(--primary); font-weight: 700; }
.content { max-width: 880px; }
.content p { color: var(--muted); margin: 0 0 18px; }
.content h2 { margin-top: 32px; }
.content ul { padding-left: 20px; color: var(--muted); margin: 12px 0 22px; }
.content li { margin: 8px 0; }
.table-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.table-card .info-row { padding: 15px 18px; }

.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.article-card { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.article-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.article-card div { padding: 18px; }
.date { color: var(--primary); font-size: 13px; font-weight: 800; margin-bottom: 7px; }

.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 24px; align-items: start; }
.contact-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; background: #fff; }
.contact-item { display: flex; gap: 14px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.contact-item:last-child { border-bottom: 0; }
form { display: grid; gap: 14px; }
label { display: block; font-weight: 750; margin-bottom: 6px; }
input, select, textarea {
  width: 100%; min-height: 46px; border: 1px solid #cfd6df; border-radius: 7px;
  padding: 11px 12px; font: inherit; color: var(--ink); background: #fff;
}
textarea { min-height: 136px; resize: vertical; }
input:focus, select:focus, textarea:focus, .btn:focus-visible, a:focus-visible, button:focus-visible { outline: 3px solid rgba(15,107,99,.22); outline-offset: 2px; }

.cta { background: var(--primary-strong); color: #fff; }
.cta .container { padding: 48px 0; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.cta h2 { color: #fff; margin: 0; font-size: clamp(26px, 3vw, 38px); }
.cta p { color: rgba(255,255,255,.78); max-width: 640px; }

.footer { background: #111827; color: #d0d5dd; }
.footer .container { padding: 42px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr .8fr .8fr 1.2fr; gap: 28px; }
.footer h4 { color: #fff; margin-bottom: 12px; }
.footer a { display: block; color: #d0d5dd; margin: 7px 0; }
.footer a:hover { color: #fff; }
.footer-bottom { margin-top: 28px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: 14px; color: #98a2b3; }

.animate-on-scroll { opacity: 0; transform: translateY(18px); transition: .5s ease; }
.animate-on-scroll.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}
@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .nav {
    position: fixed; inset: 72px 16px auto 16px; display: none; flex-direction: column; align-items: stretch;
    padding: 12px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
  }
  .nav.open { display: flex; }
  .nav a { padding: 13px; }
  .hero { min-height: auto; }
  .hero .container { padding: 58px 0; }
  .hero-metrics, .cards, .article-grid, .footer-grid { grid-template-columns: 1fr 1fr; }
  .grid-2, .contact-grid, .cta .container { grid-template-columns: 1fr; display: grid; }
}
@media (max-width: 620px) {
  .container { width: min(100% - 28px, var(--max)); }
  .logo-sub { display: none; }
  h1 { font-size: 38px; }
  .hero p { font-size: 16px; }
  .hero-actions .btn { width: 100%; }
  .hero-metrics, .cards, .article-grid, .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .info-row { grid-template-columns: 1fr; gap: 4px; }
  .footer-bottom { display: block; }
}