*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
body { font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif; overflow-x:hidden; background:#0b0b0f; color:#e8e6e3; }

/* 核心布局 */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; position:relative; }
.section:nth-child(even) { background:#12121a; }

/* 导航 — 固定顶部，暗黑玻璃态 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(11,11,15,0.85); backdrop-filter:blur(16px); border-bottom:1px solid rgba(255,215,0,0.15); }
.header-inner { display:flex; align-items:center; justify-content:space-between; height:68px; max-width:1200px; margin:0 auto; padding:0 24px; }
.logo { display:flex; align-items:center; gap:10px; font-weight:800; font-size:1.4rem; text-decoration:none; color:#ffd700; letter-spacing:2px; text-transform:uppercase; }
.logo-icon { width:40px; height:40px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:1.2rem; background:linear-gradient(135deg,#ffd700,#f0a500); color:#0b0b0f; font-weight:900; }
.main-nav { display:flex; align-items:center; gap:32px; list-style:none; }
.main-nav a { text-decoration:none; font-size:0.9rem; font-weight:500; color:#b0aea8; transition:0.3s; position:relative; padding:4px 0; }
.main-nav a::after { content:''; position:absolute; bottom:-2px; left:0; width:0; height:2px; background:#ffd700; transition:0.3s; }
.main-nav a:hover { color:#ffd700; }
.main-nav a:hover::after { width:100%; }
.nav-cta { padding:10px 24px; border-radius:30px; color:#0b0b0f!important; font-weight:700; background:linear-gradient(135deg,#ffd700,#f0a500); border:none; }
.nav-cta::after { display:none!important; }
.nav-cta:hover { transform:scale(1.05); box-shadow:0 0 30px rgba(255,215,0,0.3); }
.menu-toggle { display:none; background:none; border:none; color:#ffd700; font-size:1.5rem; cursor:pointer; }

/* 首页Hero — 大胆3D纵深+动态光效 */
.hero { min-height:80vh; display:flex; align-items:center; position:relative; overflow:hidden; background:radial-gradient(ellipse at 30% 50%, rgba(255,215,0,0.08) 0%, transparent 60%), radial-gradient(ellipse at 70% 50%, rgba(240,165,0,0.05) 0%, transparent 50%); }
.hero::before { content:''; position:absolute; top:-30%; left:-10%; width:120%; height:140%; 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='%23ffd700' 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"); opacity:0.5; animation:heroDrift 30s linear infinite; }
@keyframes heroDrift { 0%{transform:translateY(0)} 100%{transform:translateY(-50%)} }
.hero-content { max-width:720px; position:relative; z-index:2; }
.hero-eyebrow { display:inline-block; font-size:0.75rem; font-weight:700; padding:6px 18px; border-radius:30px; margin-bottom:20px; background:rgba(255,215,0,0.12); color:#ffd700; border:1px solid rgba(255,215,0,0.25); letter-spacing:3px; text-transform:uppercase; }
.hero h1 { font-size:3.6rem; line-height:1.1; margin-bottom:20px; font-weight:900; background:linear-gradient(135deg,#ffd700 0%,#f0a500 40%,#ffd700 70%,#fff8dc 100%); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; letter-spacing:-1px; }
.hero p { font-size:1.2rem; color:#b0aea8; max-width:560px; margin-bottom:36px; line-height:1.6; }
.hero-buttons { display:flex; gap:16px; }
.hero-image { border-radius:20px; overflow:hidden; box-shadow:0 20px 80px rgba(255,215,0,0.08); transform:perspective(1000px) rotateY(-5deg) rotateX(2deg); transition:0.5s; }
.hero-image:hover { transform:perspective(1000px) rotateY(0deg) rotateX(0deg); box-shadow:0 30px 100px rgba(255,215,0,0.15); }
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 */
.btn { display:inline-flex; align-items:center; gap:10px; padding:14px 32px; border-radius:50px; font-weight:700; cursor:pointer; border:none; text-decoration:none; transition:0.3s; font-size:0.95rem; letter-spacing:0.5px; }
.btn-primary { color:#0b0b0f; background:linear-gradient(135deg,#ffd700,#f0a500); box-shadow:0 4px 20px rgba(255,215,0,0.2); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 8px 35px rgba(255,215,0,0.35); }
.btn-outline { background:transparent; border:1.5px solid rgba(255,215,0,0.4); color:#ffd700; }
.btn-outline:hover { border-color:#ffd700; background:rgba(255,215,0,0.08); transform:translateY(-2px); }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.7rem; font-weight:700; letter-spacing:4px; margin-bottom:16px; color:#ffd700; text-transform:uppercase; }
.section-title { font-size:2.4rem; margin-bottom:16px; font-weight:800; color:#f0ede8; letter-spacing:-0.5px; }
.section-desc { max-width:600px; color:#8a8882; margin-bottom:44px; font-size:1.05rem; line-height:1.7; }

/* 卡片网格 — 暗夜流光质感 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:28px; }
.category-card { border-radius:16px; padding:32px; background:rgba(255,255,255,0.03); border:1px solid rgba(255,215,0,0.08); transition:0.4s; position:relative; overflow:hidden; }
.category-card::before { content:''; position:absolute; top:0; left:-100%; width:100%; height:100%; background:linear-gradient(90deg,transparent,rgba(255,215,0,0.03),transparent); transition:0.6s; }
.category-card:hover::before { left:100%; }
.category-card:hover { transform:translateY(-6px); border-color:rgba(255,215,0,0.2); box-shadow:0 12px 40px rgba(0,0,0,0.5), 0 0 60px rgba(255,215,0,0.03); }
.card-icon { width:52px; height:52px; border-radius:14px; display:flex; align-items:center; justify-content:center; margin-bottom:20px; font-size:1.5rem; background:rgba(255,215,0,0.1); color:#ffd700; }
.card-link { font-weight:600; font-size:0.85rem; text-decoration:none; color:#ffd700; display:inline-flex; align-items:center; gap:6px; transition:0.3s; }
.card-link:hover { gap:12px; }

/* 特性块 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center; }
.feature-image { border-radius:16px; overflow:hidden; box-shadow:0 15px 50px rgba(0,0,0,0.4); border:1px solid rgba(255,215,0,0.06); }
.feature-image img { width:100%; height:auto; display:block; transition:0.5s; }
.feature-image:hover img { transform:scale(1.02); }
.feature-text { }
.feature-list { list-style:none; margin-top:8px; }
.feature-list li { padding:10px 0; display:flex; align-items:center; gap:12px; color:#c8c5be; font-size:1rem; }
.feature-list li::before { content:'◆'; font-weight:700; color:#ffd700; font-size:0.7rem; }

/* 数据条 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.stat-item { padding:32px 16px; border-radius:16px; background:rgba(255,255,255,0.02); border:1px solid rgba(255,215,0,0.06); transition:0.3s; }
.stat-item:hover { border-color:rgba(255,215,0,0.15); background:rgba(255,215,0,0.03); }
.stat-number { font-size:2.8rem; font-weight:900; color:#ffd700; line-height:1; }
.stat-label { font-size:0.9rem; color:#8a8882; margin-top:8px; }

/* 内容墙 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:28px; }
.content-wall-item { border-radius:16px; overflow:hidden; background:rgba(255,255,255,0.02); border:1px solid rgba(255,215,0,0.06); transition:0.4s; }
.content-wall-item:hover { transform:translateY(-6px); border-color:rgba(255,215,0,0.15); box-shadow:0 12px 40px rgba(0,0,0,0.4); }
.content-wall-item img { width:100%; height:220px; object-fit:cover; display:block; }
.content-wall-body { padding:24px; }
.content-wall-body h3 { margin-bottom:10px; font-size:1.2rem; }
.content-wall-body p { color:#8a8882; font-size:0.9rem; line-height:1.6; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1px solid rgba(255,215,0,0.08); border-radius:14px; margin-bottom:10px; overflow:hidden; cursor:pointer; background:rgba(255,255,255,0.01); transition:0.3s; }
.faq-item:hover { border-color:rgba(255,215,0,0.15); }
.faq-item .faq-question { padding:20px 24px; font-weight:600; display:flex; justify-content:space-between; align-items:center; color:#e8e6e3; font-size:1rem; }
.faq-item .faq-question::after { content:'+'; font-size:1.3rem; color:#ffd700; transition:0.3s; }
.faq-item.open .faq-question::after { content:'−'; }
.faq-item .faq-answer { padding:0 24px 20px; display:none; color:#a09e98; line-height:1.7; }
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 */
.cta-banner { padding:64px 32px; text-align:center; border-radius:20px; background:linear-gradient(135deg,#1a1a24,#0b0b0f); border:1px solid rgba(255,215,0,0.1); position:relative; overflow:hidden; }
.cta-banner::before { content:''; position:absolute; top:-50%; left:-50%; width:200%; height:200%; background:radial-gradient(circle,rgba(255,215,0,0.03) 0%,transparent 60%); animation:ctaPulse 6s ease-in-out infinite; }
@keyframes ctaPulse { 0%,100%{transform:scale(1)} 50%{transform:scale(1.1)} }
.cta-banner h2 { color:#f0ede8; font-size:2.2rem; margin-bottom:16px; position:relative; z-index:2; }
.cta-banner p { color:#8a8882; margin-bottom:28px; position:relative; z-index:2; }
.cta-banner .btn-primary { background:#fff; color:#0b0b0f; box-shadow:0 4px 20px rgba(255,255,255,0.15); }
.cta-banner .btn-primary:hover { box-shadow:0 8px 35px rgba(255,255,255,0.25); }

/* 页脚 */
.site-footer { padding:64px 0 32px; border-top:1px solid rgba(255,215,0,0.06); background:#0b0b0f; }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:48px; }
.footer-brand { }
.footer-brand .logo { margin-bottom:16px; }
.footer-brand p { color:#8a8882; font-size:0.9rem; line-height:1.7; }
.footer-col h4 { color:#ffd700; font-size:0.85rem; margin-bottom:20px; letter-spacing:2px; text-transform:uppercase; }
.footer-col ul { list-style:none; }
.footer-col ul li { margin-bottom:12px; }
.footer-col ul a { color:#8a8882; text-decoration:none; font-size:0.9rem; transition:0.3s; }
.footer-col ul a:hover { color:#ffd700; }
.footer-bottom { border-top:1px solid rgba(255,215,0,0.06); margin-top:48px; padding-top:24px; text-align:center; font-size:0.85rem; color:#6a6863; }

/* 工具类 */
.text-accent { color:#ffd700; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; color:#8a8882; line-height:1.8; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* 响应式 */
@media (max-width: 768px) {
  .hero h1 { font-size:2.4rem; }
  .feature-block { grid-template-columns:1fr; gap:40px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; gap:32px; }
  .main-nav { display:none; }
  .menu-toggle { display:flex; align-items:center; justify-content:center; width:44px; height:44px; }
  .main-nav.open { display:flex; flex-direction:column; position:absolute; top:68px; left:0; width:100%; background:#0b0b0f; padding:24px; border-bottom:1px solid rgba(255,215,0,0.1); gap:16px; }
  .hero-image { transform:none; }
}
@media (max-width: 480px) {
  .cards-grid, .content-wall, .stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; }
  .hero-buttons { flex-direction:column; }
  .hero h1 { font-size:1.8rem; }
  .section-title { font-size:1.6rem; }
  .stat-number { font-size:2rem; }
}