/* Adventure Retail 公司官网 — 专业商务风：深蓝 + 白 */
:root {
  --navy: #0a2540;
  --navy-2: #123a63;
  --blue: #1a5fa8;
  --blue-light: #e8f1fa;
  --accent: #2f9e6e;
  --text: #1c2b3a;
  --muted: #5b6b7f;
  --line: #e3e9f0;
  --bg: #ffffff;
  --bg-soft: #f5f8fb;
  --radius: 10px;
  --maxw: 1120px;
  --font: -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }

/* ---------- 顶栏 ---------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 37, 64, 0.98);
  color: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,.18);
}
.header-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 20px;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 18px; }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 8px;
  background: linear-gradient(135deg, #2f9e6e, #1a5fa8);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 18px; color: #fff;
}
.nav { display: flex; gap: 4px; align-items: center; }
.nav a {
  color: #d7e3f2; padding: 8px 14px; border-radius: 6px; font-size: 15px;
}
.nav a:hover, .nav a.active { background: rgba(255,255,255,.12); color: #fff; text-decoration: none; }
.lang-btn {
  margin-left: 8px; border: 1px solid rgba(255,255,255,.35); background: transparent;
  color: #fff; border-radius: 6px; padding: 6px 12px; cursor: pointer; font-size: 14px;
}
.lang-btn:hover { background: rgba(255,255,255,.12); }
.burger { display: none; background: none; border: none; color: #fff; font-size: 24px; cursor: pointer; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 60%, #1a5fa8 100%);
  color: #fff; padding: 96px 20px 88px; text-align: center;
  position: relative; overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(600px 300px at 80% 10%, rgba(47,158,110,.25), transparent 70%);
}
.hero-inner { max-width: 860px; margin: 0 auto; position: relative; z-index: 1; }
.hero h1 { font-size: 40px; line-height: 1.4; margin-bottom: 18px; letter-spacing: .5px; }
.hero p.lead { font-size: 19px; color: #c9d8ea; max-width: 700px; margin: 0 auto 34px; }
.btn {
  display: inline-block; padding: 13px 34px; border-radius: 8px;
  font-size: 16px; font-weight: 600; cursor: pointer; border: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #27885e; text-decoration: none; color: #fff; }
.btn-ghost {
  background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.5);
  margin-left: 12px;
}
.btn-ghost:hover { background: rgba(255,255,255,.1); text-decoration: none; color: #fff; }
.btn-dark { background: var(--navy); color: #fff; }
.btn-dark:hover { background: var(--navy-2); color: #fff; text-decoration: none; }

/* ---------- 通用区块 ---------- */
.section { max-width: var(--maxw); margin: 0 auto; padding: 72px 20px; }
.section.soft { background: var(--bg-soft); }
.section-title { font-size: 30px; color: var(--navy); margin-bottom: 10px; text-align: center; }
.section-sub { text-align: center; color: var(--muted); max-width: 720px; margin: 0 auto 44px; font-size: 17px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 28px; transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(10,37,64,.1); }
.card .icon { font-size: 40px; margin-bottom: 14px; }
.card h3 { font-size: 20px; color: var(--navy); margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 15px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.check-list { list-style: none; }
.check-list li { padding: 10px 0 10px 34px; position: relative; border-bottom: 1px solid var(--line); }
.check-list li:last-child { border-bottom: none; }
.check-list li::before { content: "✓"; position: absolute; left: 4px; color: var(--accent); font-weight: 700; }

/* ---------- CTA ---------- */
.cta {
  background: linear-gradient(135deg, var(--navy), var(--blue));
  color: #fff; text-align: center; padding: 72px 20px;
}
.cta h2 { font-size: 30px; margin-bottom: 12px; }
.cta p { color: #c9d8ea; margin-bottom: 28px; }

/* ---------- 页脚 ---------- */
.footer { background: var(--navy); color: #9fb3c8; padding: 48px 20px 28px; }
.footer-inner { max-width: var(--maxw); margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.footer h4 { color: #fff; margin-bottom: 14px; font-size: 16px; }
.footer a { color: #9fb3c8; display: block; padding: 4px 0; font-size: 14px; }
.footer-bottom { max-width: var(--maxw); margin: 32px auto 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); font-size: 13px; text-align: center; }

/* ---------- 表单 ---------- */
.form { max-width: 640px; margin: 0 auto; }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; margin-bottom: 6px; color: var(--navy); }
.field input, .field textarea, .field select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px;
  font-size: 15px; font-family: var(--font);
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(26,95,168,.12); }
.field textarea { min-height: 140px; resize: vertical; }
.form-note { font-size: 13px; color: var(--muted); margin-top: 12px; text-align: center; }

/* ---------- 关于页 ---------- */
.timeline { position: relative; margin: 40px 0 0 8px; padding-left: 28px; border-left: 2px solid var(--line); }
.timeline-item { margin-bottom: 28px; position: relative; }
.timeline-item::before {
  content: ""; position: absolute; left: -36px; top: 6px; width: 12px; height: 12px;
  border-radius: 50%; background: var(--accent); border: 2px solid #fff;
  box-shadow: 0 0 0 2px var(--accent);
}
.timeline-item .year { font-weight: 700; color: var(--navy); }
.profile { display: flex; gap: 28px; align-items: flex-start; background: var(--bg-soft); border-radius: var(--radius); padding: 32px; }
.avatar {
  width: 110px; height: 110px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--navy), var(--blue));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 40px; font-weight: 700;
}

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .cards { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; gap: 28px; }
  .hero h1 { font-size: 30px; }
  .hero { padding: 72px 20px 64px; }
  .footer-inner { grid-template-columns: 1fr; }
  .nav {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: var(--navy); flex-direction: column; padding: 12px 20px 20px; gap: 2px;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 8px; }
  .burger { display: block; }
  .profile { flex-direction: column; }
}