:root {
  --primary: #1a2a47;
  --gold: #c9a96e;
  --bg: #ffffff;
  --text: #2c2c2c;
  --muted: #666;
  --border: #e8e5e0;
  --radius: 8px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

.demo-bar {
  background: var(--primary);
  color: #ccc;
  text-align: center;
  padding: 10px;
  font-size: 0.85rem;
}
.demo-bar a { color: var(--gold); }

/* 导航 */
.nav {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 0; border-bottom: 1px solid var(--border);
}
.nav .logo { font-size: 1.5rem; font-weight: 700; color: var(--primary); }
.nav .logo span { color: var(--gold); }
.nav-links { display: flex; gap: 25px; }
.nav-links a { color: var(--muted); text-decoration: none; font-weight: 500; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }

/* Hero */
.hero {
  background: linear-gradient(rgba(26,42,71,0.7), rgba(26,42,71,0.5)), var(--hero-image) center/cover no-repeat;
  color: #fff; text-align: center; padding: 100px 20px 80px;
}
.hero h1 { font-size: 3rem; margin-bottom: 1rem; }
.hero .slogan { font-size: 1.3rem; opacity: 0.9; margin-bottom: 2rem; }
.btn {
  display: inline-block; padding: 14px 36px; border-radius: 4px;
  font-weight: 600; text-decoration: none; transition: 0.2s; letter-spacing: 1px;
}
.btn-primary { background: var(--gold); color: #fff; }
.btn-outline { border: 2px solid #fff; color: #fff; margin-left: 15px; }
.btn-primary:hover { background: #b8903f; }
.btn-outline:hover { background: rgba(255,255,255,0.1); }

/* 通用板块 */
section { padding: 60px 0; }
.section-title { text-align: center; font-size: 2rem; margin-bottom: 40px; color: var(--primary); }
.section-title span { color: var(--gold); }

/* 特色 */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 30px; }
.feature { text-align: center; padding: 30px 20px; }
.feature .icon { font-size: 2.5rem; margin-bottom: 15px; }
.feature h3 { margin-bottom: 10px; }

/* 服务卡片 */
.service-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 25px; }
.service-card {
  border: 1px solid var(--border); border-radius: var(--radius); padding: 30px;
  transition: 0.2s;
}
.service-card:hover { box-shadow: 0 8px 20px rgba(0,0,0,0.05); }
.service-card .icon { font-size: 2rem; }
.service-card h3 { margin: 15px 0 10px; color: var(--primary); }
.service-card .price { color: var(--gold); font-weight: 600; margin-top: 10px; }

/* 案例网格 */
.case-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 25px; }
.case-item {
  position: relative; overflow: hidden; border-radius: var(--radius);
  background: #eee; display: block; color: #fff; text-decoration: none;
}
.case-item img { width: 100%; height: 250px; object-fit: cover; display: block; }
.case-item .case-info {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  padding: 20px;
}
.case-item h3 { font-size: 1.2rem; }
.case-item p { font-size: 0.9rem; opacity: 0.8; }

/* 预约表单 */
.booking-form input, .booking-form textarea, .booking-form select {
  width: 100%; padding: 14px; border: 1px solid var(--border); border-radius: 4px;
  margin-bottom: 20px; font-size: 1rem;
}
.booking-form textarea { resize: vertical; min-height: 100px; }

/* 页脚 */
footer {
  background: var(--primary); color: #ccc; padding: 40px 20px;
  text-align: center; margin-top: 60px;
}
footer a { color: var(--gold); }

/* 响应式 */
@media (max-width: 768px) {
  .nav { flex-direction: column; gap: 10px; }
  .hero h1 { font-size: 2rem; }
  .btn-outline { margin-left: 0; margin-top: 10px; }
}