:root {
  --ink: #0f1d2e;
  --ink-2: #16304a;
  --gold: #c9a227;
  --gold-soft: #e8d9a8;
  --paper: #f7f8fa;
  --text: #22303f;
  --muted: #6b7b8c;
  --line: rgba(15, 29, 46, .10);
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 29, 46, .08);
  --shadow-lg: 0 24px 60px rgba(15, 29, 46, .16);
  --max: 1140px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 68px;
  display: flex; align-items: center;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s, border-color .3s;
}
.nav.solid { border-bottom-color: var(--line); box-shadow: 0 2px 20px rgba(15, 29, 46, .06); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; width: 100%; }

.brand { display: flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 700; color: var(--ink); letter-spacing: .5px; }
.brand .mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 1px 5px rgba(15, 29, 46, .10);
  display: grid; place-items: center;
  overflow: hidden;
  flex: none;
}
.brand .mark img { width: 100%; height: 100%; object-fit: contain; display: block; }
.brand small { display: block; font-size: 11px; font-weight: 400; color: var(--muted); letter-spacing: 2px; }

.nav-links { display: flex; gap: 30px; font-size: 15px; color: var(--muted); }
.nav-links a { position: relative; padding: 6px 0; transition: color .25s; }
.nav-links a::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform .3s;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-toggle { display: none; font-size: 22px; background: none; border: 0; cursor: pointer; color: var(--ink); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 168px 0 96px;
  color: #fff;
  background: radial-gradient(1200px 600px at 78% -10%, rgba(201, 162, 39, .28), transparent 60%),
              linear-gradient(150deg, #0f1d2e 0%, #16304a 55%, #1d4363 100%);
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute; inset: auto 0 0 0; height: 120px;
  background: linear-gradient(to bottom, transparent, var(--paper));
}
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; position: relative; z-index: 2; }

.hero h1 { font-size: 50px; line-height: 1.25; font-weight: 700; letter-spacing: 1px; }
.hero h1 em { font-style: normal; color: var(--gold-soft); }
.hero .lead { margin-top: 22px; font-size: 18px; color: rgba(255, 255, 255, .78); max-width: 520px; }
.hero .lead strong { color: #fff; font-weight: 600; }

.hero-actions { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-block; padding: 13px 30px; border-radius: 999px;
  font-size: 15px; font-weight: 600; cursor: pointer; border: 1px solid transparent;
  transition: transform .2s, box-shadow .2s, background .2s;
}
.btn-primary { background: linear-gradient(135deg, var(--gold), #e0bc4a); color: #241d05; box-shadow: 0 10px 26px rgba(201, 162, 39, .32); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(201, 162, 39, .42); }
.btn-ghost { border-color: rgba(255, 255, 255, .45); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .12); transform: translateY(-2px); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

.stat-row { display: flex; gap: 40px; margin-top: 46px; padding-top: 26px; border-top: 1px solid rgba(255, 255, 255, .16); }
.stat b { display: block; font-size: 30px; color: var(--gold-soft); line-height: 1.2; }
.stat span { font-size: 13px; color: rgba(255, 255, 255, .66); }

/* 右侧：服务卡片 */
.hero-card {
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 20px; padding: 26px;
  backdrop-filter: blur(6px);
  box-shadow: var(--shadow-lg);
}
.hero-card h3 { font-size: 15px; font-weight: 600; letter-spacing: 1px; color: var(--gold-soft); margin-bottom: 18px; }
.hero-card ul { list-style: none; }
.hero-card li { display: flex; gap: 12px; padding: 11px 0; border-bottom: 1px dashed rgba(255, 255, 255, .14); font-size: 14.5px; color: rgba(255, 255, 255, .86); }
.hero-card li:last-child { border-bottom: 0; }
.hero-card li i { font-style: normal; color: var(--gold); }

/* ---------- 通用板块 ---------- */
section { padding: 92px 0; }
section.alt { background: var(--paper); }

.sec-head { text-align: center; margin-bottom: 52px; }
.sec-head .kicker { font-size: 12px; letter-spacing: 4px; color: var(--gold); font-weight: 700; text-transform: uppercase; }
.sec-head h2 { font-size: 34px; color: var(--ink); margin-top: 10px; letter-spacing: 1px; }
.sec-head p { color: var(--muted); margin-top: 12px; font-size: 15.5px; }
.sec-head .rule { width: 52px; height: 3px; background: var(--gold); margin: 18px auto 0; border-radius: 2px; }