*, *::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:#0a0a0f; color:#f0e6d0; }

/* 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:linear-gradient(135deg, #1a1a2e 0%, #16213e 100%); }

/* 导航 — 黑暗野兽派 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(10,10,15,0.92); backdrop-filter:blur(16px) saturate(180%); border-bottom:1px solid rgba(255,215,0,0.15); }
.header-inner { display:flex; align-items:center; justify-content:space-between; height:72px; max-width:1200px; margin:0 auto; padding:0 24px; }
.logo { display:flex; align-items:center; gap:10px; font-weight:900; font-size:1.4rem; text-decoration:none; color:#ffd700; letter-spacing:-0.5px; text-transform:uppercase; }
.logo-icon { width:40px; height:40px; border-radius:4px; display:flex; align-items:center; justify-content:center; font-size:1.2rem; background:#ffd700; color:#0a0a0f; font-weight:900; }
.main-nav { display:flex; align-items:center; gap:32px; list-style:none; }
.main-nav a { text-decoration:none; font-size:0.85rem; font-weight:600; color:#f0e6d0; letter-spacing:1px; text-transform:uppercase; position:relative; padding:4px 0; transition:0.3s; }
.main-nav a::after { content:''; position:absolute; bottom:0; left:0; width:0; height:2px; background:#ffd700; transition:0.3s; }
.main-nav a:hover::after { width:100%; }
.main-nav a:hover { color:#ffd700; }
.nav-cta { padding:10px 24px; border-radius:0; background:#ffd700; color:#0a0a0f!important; font-weight:800; letter-spacing:1px; text-transform:uppercase; transition:0.3s; }
.nav-cta:hover { background:#fff; color:#0a0a0f!important; transform:scale(1.05); }
.menu-toggle { display:none; background:none; border:2px solid #ffd700; color:#ffd700; padding:8px 16px; font-weight:700; cursor:pointer; letter-spacing:2px; text-transform:uppercase; font-size:0.8rem; }

/* 首页Hero — 大胆解构 */
.hero { min-height:85vh; display:flex; align-items:center; position:relative; overflow:hidden; }
.hero::before { content:''; position:absolute; top:-40%; right:-20%; width:600px; height:600px; background:radial-gradient(circle, rgba(255,215,0,0.08) 0%, transparent 70%); border-radius:50%; pointer-events:none; }
.hero::after { content:''; position:absolute; bottom:-30%; left:-10%; width:400px; height:400px; background:radial-gradient(circle, rgba(255,100,50,0.06) 0%, transparent 70%); border-radius:50%; pointer-events:none; }
.hero-content { max-width:800px; position:relative; z-index:2; }
.hero-eyebrow { display:inline-block; font-size:0.7rem; font-weight:800; padding:6px 18px; border:2px solid #ffd700; color:#ffd700; letter-spacing:3px; text-transform:uppercase; margin-bottom:20px; background:rgba(255,215,0,0.05); }
.hero h1 { font-size:3.8rem; line-height:1.05; margin-bottom:24px; font-weight:900; letter-spacing:-2px; color:#fff; text-transform:uppercase; }
.hero h1 span { color:#ffd700; display:block; font-size:4.2rem; }
.hero p { font-size:1.15rem; opacity:0.6; max-width:560px; margin-bottom:36px; line-height:1.6; color:#b0a8a0; }
.hero-buttons { display:flex; gap:16px; }
.hero-image { border-radius:0; overflow:hidden; position:relative; border:2px solid rgba(255,215,0,0.2); }
.hero-image img { width:100%; height:auto; display:block; filter:grayscale(30%) contrast(110%); }

/* 按钮 — 粗野主义 */
.btn { display:inline-flex; align-items:center; gap:10px; padding:14px 32px; border-radius:0; font-weight:800; cursor:pointer; border:none; text-decoration:none; transition:0.3s; letter-spacing:1px; text-transform:uppercase; font-size:0.85rem; }
.btn-primary { background:#ffd700; color:#0a0a0f; }
.btn-primary:hover { background:#fff; transform:translateY(-2px); box-shadow:0 8px 24px rgba(255,215,0,0.3); }
.btn-outline { background:transparent; border:2px solid #ffd700; color:#ffd700; }
.btn-outline:hover { background:#ffd700; color:#0a0a0f; }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.65rem; font-weight:800; letter-spacing:4px; color:#ffd700; margin-bottom:12px; text-transform:uppercase; }
.section-title { font-size:2.6rem; margin-bottom:16px; font-weight:900; letter-spacing:-1px; color:#fff; text-transform:uppercase; }
.section-desc { max-width:600px; opacity:0.5; margin-bottom:48px; font-size:1.05rem; line-height:1.6; color:#b0a8a0; }

/* 卡片网格 — 玻璃态 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:28px; }
.category-card { border-radius:0; padding:32px; background:rgba(255,255,255,0.03); border:1px solid rgba(255,215,0,0.1); backdrop-filter:blur(8px); transition:0.4s; position:relative; }
.category-card:hover { transform:translateY(-6px); border-color:rgba(255,215,0,0.4); background:rgba(255,215,0,0.05); box-shadow:0 12px 40px rgba(0,0,0,0.4); }
.card-icon { width:56px; height:56px; border-radius:0; display:flex; align-items:center; justify-content:center; margin-bottom:20px; font-size:1.6rem; background:rgba(255,215,0,0.1); color:#ffd700; border:1px solid rgba(255,215,0,0.2); }
.category-card h3 { font-size:1.3rem; font-weight:800; color:#fff; margin-bottom:10px; letter-spacing:-0.5px; }
.category-card p { opacity:0.5; font-size:0.9rem; line-height:1.5; margin-bottom:16px; }
.card-link { font-weight:700; font-size:0.75rem; text-decoration:none; color:#ffd700; letter-spacing:2px; text-transform:uppercase; 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:0; overflow:hidden; border:2px solid rgba(255,215,0,0.15); position:relative; }
.feature-image img { width:100%; height:auto; display:block; filter:grayscale(20%); }
.feature-text { }
.feature-text h3 { font-size:1.6rem; font-weight:900; color:#fff; margin-bottom:16px; letter-spacing:-0.5px; }
.feature-text p { opacity:0.5; line-height:1.6; margin-bottom:20px; }
.feature-list { list-style:none; }
.feature-list li { padding:8px 0; display:flex; align-items:center; gap:12px; font-weight:500; color:#d0c8b8; }
.feature-list li::before { content:'✦'; font-weight:700; color:#ffd700; font-size:1.1rem; }

/* 数据条 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; text-align:center; }
.stat-item { padding:32px 20px; border-radius:0; border:1px solid rgba(255,215,0,0.1); background:rgba(255,255,255,0.02); position:relative; overflow:hidden; }
.stat-item::before { content:''; position:absolute; top:0; left:0; width:3px; height:100%; background:#ffd700; }
.stat-number { font-size:2.8rem; font-weight:900; color:#fff; letter-spacing:-1px; }
.stat-label { font-size:0.85rem; opacity:0.4; margin-top:8px; text-transform:uppercase; letter-spacing:1px; }

/* 内容墙 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:24px; }
.content-wall-item { border-radius:0; overflow:hidden; border:1px solid rgba(255,215,0,0.08); background:rgba(255,255,255,0.02); transition:0.4s; }
.content-wall-item:hover { transform:translateY(-5px); border-color:rgba(255,215,0,0.3); box-shadow:0 12px 32px rgba(0,0,0,0.5); }
.content-wall-item img { width:100%; height:220px; object-fit:cover; filter:grayscale(40%) brightness(0.8); transition:0.4s; }
.content-wall-item:hover img { filter:grayscale(0%) brightness(1); }
.content-wall-body { padding:24px; }
.content-wall-body h3 { font-size:1.2rem; font-weight:800; color:#fff; margin-bottom:8px; }
.content-wall-body p { opacity:0.5; font-size:0.85rem; line-height:1.5; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1px solid rgba(255,215,0,0.1); border-radius:0; margin-bottom:6px; overflow:hidden; cursor:pointer; background:rgba(255,255,255,0.02); transition:0.3s; }
.faq-item:hover { border-color:rgba(255,215,0,0.3); }
.faq-item .faq-question { padding:18px 24px; font-weight:700; display:flex; justify-content:space-between; color:#fff; font-size:1rem; letter-spacing:-0.3px; }
.faq-item .faq-question::after { content:'+'; font-size:1.4rem; color:#ffd700; font-weight:300; transition:0.3s; }
.faq-item.open .faq-question::after { content:'−'; }
.faq-item .faq-answer { padding:0 24px 20px; display:none; opacity:0.5; line-height:1.6; color:#b0a8a0; }
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 */
.cta-banner { padding:64px 32px; text-align:center; border-radius:0; background:linear-gradient(135deg, #ffd700 0%, #ff8c00 100%); color:#0a0a0f; position:relative; overflow:hidden; }
.cta-banner::before { content:''; position:absolute; top:50%; left:50%; width:800px; height:800px; background:radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%); transform:translate(-50%,-50%); pointer-events:none; }
.cta-banner h2 { font-size:2.4rem; font-weight:900; color:#0a0a0f; margin-bottom:16px; letter-spacing:-1px; position:relative; }
.cta-banner p { opacity:0.8; margin-bottom:28px; font-size:1.1rem; position:relative; }
.cta-banner .btn-primary { background:#0a0a0f; color:#ffd700; }
.cta-banner .btn-primary:hover { background:#fff; color:#0a0a0f; }

/* 页脚 */
.site-footer { padding:64px 0 32px; background:#0a0a0f; border-top:1px solid rgba(255,215,0,0.08); }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:48px; }
.footer-brand { }
.footer-brand h3 { font-size:1.3rem; font-weight:900; color:#ffd700; margin-bottom:12px; }
.footer-brand p { opacity:0.4; font-size:0.85rem; line-height:1.6; }
.footer-col h4 { font-size:0.75rem; font-weight:700; color:#fff; text-transform:uppercase; letter-spacing:2px; margin-bottom:16px; }
.footer-col ul { list-style:none; }
.footer-col ul li { margin-bottom:10px; }
.footer-col ul li a { text-decoration:none; color:#b0a8a0; font-size:0.85rem; opacity:0.6; transition:0.3s; }
.footer-col ul li a:hover { opacity:1; color:#ffd700; }
.footer-bottom { border-top:1px solid rgba(255,215,0,0.08); margin-top:48px; padding-top:24px; text-align:center; font-size:0.8rem; opacity:0.3; color:#b0a8a0; letter-spacing:1px; }

/* 工具类 */
.text-accent { color:#ffd700; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.4; color:#b0a8a0; line-height:1.6; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* 响应式 */
@media (max-width: 992px) {
  .hero h1 { font-size:2.8rem; }
  .hero h1 span { font-size:3rem; }
  .feature-block { grid-template-columns:1fr; gap:40px; }
  .footer-grid { grid-template-columns:1fr 1fr; }
}

@media (max-width: 768px) {
  .main-nav { display:none; }
  .menu-toggle { display:flex; }
  .main-nav.open { display:flex; flex-direction:column; position:absolute; top:72px; left:0; width:100%; background:#0a0a0f; padding:24px; gap:16px; border-bottom:1px solid rgba(255,215,0,0.15); }
  .main-nav.open a { font-size:1rem; padding:8px 0; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .hero { min-height:70vh; }
  .hero h1 { font-size:2.2rem; }
  .hero h1 span { font-size:2.4rem; }
  .section-title { font-size:2rem; }
  .cards-grid { grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); }
}

@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; }
  .hero h1 span { font-size:2rem; }
  .section-title { font-size:1.6rem; }
  .cta-banner h2 { font-size:1.6rem; }
  .container { padding:0 16px; }
}