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

:root {
  --primary: #1a1a2e;
  --accent: #e94560;
  --accent2: #0f3460;
  --text: #333;
  --light: #f8f9fa;
  --white: #fff;
}

body { font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; color: var(--text); }

/* Navbar */
header { position: fixed; top: 0; width: 100%; z-index: 100; background: rgba(26,26,46,0.95); backdrop-filter: blur(8px); }
.navbar { max-width: 1200px; margin: 0 auto; padding: 0 2rem; height: 64px; display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--white); font-size: 1.1rem; font-weight: 700; }
.logo-icon { font-size: 1.4rem; }
.nav-links { list-style: none; display: flex; gap: 2rem; }
.nav-links a { color: rgba(255,255,255,0.85); text-decoration: none; font-size: 0.95rem; transition: color 0.2s; }
.nav-links a:hover { color: var(--accent); }

/* Hero */
.hero { min-height: 100vh; display: flex; align-items: center; justify-content: center; text-align: center; background: linear-gradient(135deg, var(--primary) 0%, var(--accent2) 100%); position: relative; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E"); }
.hero-content { position: relative; z-index: 1; padding: 2rem; }
.hero-content h1 { font-size: clamp(1.8rem, 5vw, 3.2rem); color: var(--white); font-weight: 800; line-height: 1.2; margin-bottom: 1rem; }
.hero-sub { font-size: clamp(1rem, 2vw, 1.3rem); color: rgba(255,255,255,0.75); margin-bottom: 2rem; }
.btn-primary { display: inline-block; padding: 0.85rem 2.5rem; background: var(--accent); color: var(--white); text-decoration: none; border-radius: 4px; font-size: 1rem; font-weight: 600; transition: transform 0.2s, box-shadow 0.2s; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(233,69,96,0.4); }

/* Sections */
.section { padding: 80px 0; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.section-title { text-align: center; font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; margin-bottom: 3rem; color: var(--primary); position: relative; }
.section-title::after { content: ''; display: block; width: 50px; height: 3px; background: var(--accent); margin: 0.6rem auto 0; border-radius: 2px; }

/* About */
.about { background: var(--light); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.about-text p { line-height: 1.8; margin-bottom: 1rem; color: #555; }
.legal-note { font-size: 0.85rem; color: #888; border-left: 3px solid var(--accent); padding-left: 1rem; }
.legal-note a { color: var(--accent2); }
.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.stat { text-align: center; padding: 1.5rem 1rem; background: var(--white); border-radius: 8px; box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.stat-num { display: block; font-size: 1.6rem; font-weight: 800; color: var(--accent); }
.stat-label { display: block; font-size: 0.85rem; color: #888; margin-top: 0.3rem; }

/* Services */
.services { background: var(--white); }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 2rem; }
.service-card { padding: 2rem; border-radius: 10px; border: 1px solid #eee; text-align: center; transition: transform 0.2s, box-shadow 0.2s; }
.service-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.08); }
.service-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.service-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.75rem; color: var(--primary); }
.service-card p { font-size: 0.9rem; color: #666; line-height: 1.7; }

/* Contact */
.contact { background: var(--light); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.contact-item { display: flex; align-items: flex-start; gap: 1rem; margin-bottom: 2rem; }
.contact-icon { font-size: 1.5rem; }
.contact-item strong { display: block; font-size: 0.85rem; color: #888; margin-bottom: 0.2rem; }
.contact-item p { font-size: 1.05rem; font-weight: 600; color: var(--primary); }
.wechat-box { display: flex; justify-content: center; }
.wechat-card { background: var(--white); border-radius: 12px; padding: 2.5rem 3rem; text-align: center; box-shadow: 0 4px 20px rgba(0,0,0,0.08); }
.wechat-icon { font-size: 4rem; margin-bottom: 1rem; }
.wechat-id { font-size: 1.2rem; font-weight: 700; color: var(--primary); margin-bottom: 0.5rem; }
.wechat-hint { font-size: 0.85rem; color: #888; }

/* Footer */
footer { background: var(--primary); color: rgba(255,255,255,0.7); text-align: center; padding: 2rem; }
footer p { font-size: 0.85rem; line-height: 2; }
.footer-legal a { color: rgba(255,255,255,0.5); }

/* Responsive */
@media (max-width: 768px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .about-stats { grid-template-columns: repeat(3, 1fr); }
  .nav-links { display: none; }
}