*, *::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:#fff8f0; color:#3d2e1e; }

/* 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:#fff4e8; }

/* 导航 — 固定顶部，毛玻璃卡牌质感 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(255,248,240,0.92); backdrop-filter:blur(12px); border-bottom:2px solid #d4b896; box-shadow:0 2px 20px rgba(180,140,100,0.08); }
.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:800; font-size:1.3rem; text-decoration:none; color:#3d2e1e; letter-spacing:1px; }
.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,#d4a373,#bc6c25); color:#fff; box-shadow:0 2px 8px rgba(188,108,37,0.3); }
.main-nav { display:flex; align-items:center; gap:28px; list-style:none; }
.main-nav a { text-decoration:none; font-size:0.9rem; font-weight:600; color:#5a4a3a; transition:0.2s; padding:6px 0; border-bottom:2px solid transparent; }
.main-nav a:hover { color:#bc6c25; border-bottom-color:#bc6c25; }
.nav-cta { padding:10px 24px; border-radius:30px; color:#fff!important; font-weight:700; background:linear-gradient(135deg,#d4a373,#bc6c25); border-bottom:none!important; box-shadow:0 4px 12px rgba(188,108,37,0.25); }
.nav-cta:hover { transform:translateY(-2px); box-shadow:0 6px 20px rgba(188,108,37,0.35); }
.menu-toggle { display:none; cursor:pointer; font-size:1.5rem; color:#3d2e1e; }

/* 首页Hero — 扑克牌堆叠感 */
.hero { min-height:75vh; display:flex; align-items:center; position:relative; overflow:hidden; padding-top:80px; }
.hero::before { content:''; position:absolute; top:-20%; right:-10%; width:500px; height:500px; background:radial-gradient(circle,rgba(212,163,115,0.15),transparent 70%); border-radius:50%; pointer-events:none; }
.hero::after { content:'♠ ♥ ♦ ♣'; position:absolute; bottom:10%; left:5%; font-size:8rem; opacity:0.04; letter-spacing:40px; color:#bc6c25; pointer-events:none; transform:rotate(-5deg); }
.hero-content { max-width:720px; position:relative; z-index:2; }
.hero-eyebrow { display:inline-block; font-size:0.8rem; font-weight:700; padding:6px 18px; border-radius:30px; margin-bottom:18px; background:#d4a373; color:#fff; letter-spacing:2px; text-transform:uppercase; }
.hero h1 { font-size:3.2rem; line-height:1.15; margin-bottom:20px; color:#2d1e0e; font-weight:900; letter-spacing:-1px; }
.hero h1 span { display:block; color:#bc6c25; }
.hero p { font-size:1.15rem; opacity:0.75; max-width:540px; margin-bottom:36px; line-height:1.7; }
.hero-buttons { display:flex; gap:16px; flex-wrap:wrap; }
.hero-image { border-radius:16px; overflow:hidden; box-shadow:0 8px 40px rgba(188,108,37,0.12); transform:rotate(2deg); transition:0.4s; }
.hero-image:hover { transform:rotate(0deg) scale(1.02); }
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 — 扑克筹码质感 */
.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:0.25s; font-size:0.95rem; }
.btn-primary { color:#fff; background:linear-gradient(135deg,#d4a373,#bc6c25); box-shadow:0 4px 16px rgba(188,108,37,0.3); }
.btn-primary:hover { transform:translateY(-3px); box-shadow:0 8px 28px rgba(188,108,37,0.4); }
.btn-outline { background:transparent; border:2px solid #bc6c25; color:#bc6c25; }
.btn-outline:hover { background:#bc6c25; color:#fff; }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.75rem; font-weight:700; letter-spacing:3px; margin-bottom:14px; color:#bc6c25; text-transform:uppercase; }
.section-title { font-size:2.2rem; margin-bottom:14px; color:#2d1e0e; font-weight:800; }
.section-desc { max-width:600px; opacity:0.7; margin-bottom:44px; font-size:1.05rem; line-height:1.6; }

/* 卡片网格 — 扑克牌翻转效果 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:28px; }
.category-card { border-radius:16px; padding:32px; border:2px solid #e8d5c0; background:#fff; transition:0.3s; position:relative; overflow:hidden; }
.category-card::before { content:'♠'; position:absolute; top:-10px; right:10px; font-size:4rem; opacity:0.06; color:#bc6c25; }
.category-card:hover { transform:translateY(-5px) rotate(0.5deg); box-shadow:0 12px 40px rgba(188,108,37,0.12); border-color:#d4a373; }
.card-icon { width:52px; height:52px; border-radius:14px; display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:1.5rem; background:#fff4e8; color:#bc6c25; border:1px solid #e8d5c0; }
.category-card h3 { font-size:1.2rem; margin-bottom:10px; color:#2d1e0e; }
.category-card p { font-size:0.9rem; opacity:0.65; margin-bottom:16px; line-height:1.5; }
.card-link { font-weight:700; font-size:0.85rem; text-decoration:none; color:#bc6c25; display:inline-flex; align-items:center; gap:6px; }
.card-link::after { content:'→'; transition:0.2s; }
.card-link:hover::after { transform:translateX(4px); }

/* 特性块 — 左右交错 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.feature-image { border-radius:16px; overflow:hidden; box-shadow:0 8px 32px rgba(0,0,0,0.06); transition:0.3s; }
.feature-image:hover { transform:scale(1.01); }
.feature-image img { width:100%; height:auto; display:block; }
.feature-text h3 { font-size:1.6rem; margin-bottom:16px; color:#2d1e0e; }
.feature-text p { opacity:0.7; line-height:1.7; margin-bottom:20px; }
.feature-list { list-style:none; }
.feature-list li { padding:8px 0; display:flex; align-items:center; gap:10px; font-weight:500; }
.feature-list li::before { content:'♢'; font-weight:700; color:#bc6c25; font-size:1.2rem; }

/* 数据条 — 筹码堆叠 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.stat-item { padding:28px 16px; border-radius:16px; border:2px solid #e8d5c0; background:#fff; transition:0.3s; }
.stat-item:hover { border-color:#d4a373; box-shadow:0 4px 20px rgba(212,163,115,0.15); }
.stat-number { font-size:2.6rem; font-weight:900; color:#bc6c25; line-height:1; }
.stat-label { font-size:0.9rem; opacity:0.6; margin-top:8px; font-weight:500; }

/* 内容墙 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:28px; }
.content-wall-item { border-radius:16px; overflow:hidden; border:2px solid #e8d5c0; background:#fff; transition:0.3s; }
.content-wall-item:hover { transform:translateY(-5px); box-shadow:0 12px 40px rgba(188,108,37,0.1); border-color:#d4a373; }
.content-wall-item img { width:100%; height:210px; object-fit:cover; }
.content-wall-body { padding:22px; }
.content-wall-body h4 { font-size:1.1rem; margin-bottom:8px; color:#2d1e0e; }
.content-wall-body p { font-size:0.85rem; opacity:0.65; line-height:1.5; }
.content-wall-body .card-link { margin-top:12px; display:inline-block; }

/* FAQ — 折叠卡片 */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:2px solid #e8d5c0; border-radius:14px; margin-bottom:10px; overflow:hidden; cursor:pointer; background:#fff; transition:0.2s; }
.faq-item:hover { border-color:#d4a373; }
.faq-item .faq-question { padding:18px 22px; font-weight:700; display:flex; justify-content:space-between; color:#2d1e0e; font-size:1rem; }
.faq-item .faq-question::after { content:'♢'; transition:0.3s; color:#bc6c25; font-size:1.2rem; }
.faq-item.open .faq-question::after { transform:rotate(45deg); }
.faq-item .faq-answer { padding:0 22px 18px; display:none; opacity:0.7; line-height:1.6; }
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 */
.cta-banner { padding:64px 24px; text-align:center; border-radius:20px; color:#fff; background:linear-gradient(135deg,#d4a373,#bc6c25); position:relative; overflow:hidden; }
.cta-banner::before { content:'♠ ♥ ♦ ♣'; position:absolute; top:50%; left:50%; transform:translate(-50%,-50%); font-size:12rem; opacity:0.06; letter-spacing:30px; }
.cta-banner h2 { color:#fff; font-size:2rem; margin-bottom:14px; position:relative; }
.cta-banner p { color:rgba(255,255,255,0.85); margin-bottom:28px; position:relative; }
.cta-banner .btn-primary { background:#fff; color:#bc6c25; box-shadow:0 4px 16px rgba(0,0,0,0.1); }
.cta-banner .btn-primary:hover { transform:translateY(-3px); box-shadow:0 8px 28px rgba(0,0,0,0.15); }

/* 页脚 */
.site-footer { padding:56px 0 28px; background:#2d1e0e; color:#e8d5c0; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand h3 { color:#d4a373; font-size:1.3rem; margin-bottom:12px; }
.footer-brand p { opacity:0.6; font-size:0.9rem; line-height:1.6; }
.footer-col h4 { color:#d4a373; font-size:0.95rem; margin-bottom:14px; font-weight:700; }
.footer-col ul { list-style:none; }
.footer-col li { margin-bottom:8px; }
.footer-col a { color:#e8d5c0; text-decoration:none; opacity:0.7; font-size:0.9rem; transition:0.2s; }
.footer-col a:hover { opacity:1; color:#d4a373; }
.footer-bottom { border-top:1px solid rgba(232,213,192,0.15); margin-top:40px; padding-top:20px; text-align:center; font-size:0.85rem; opacity:0.5; }

/* 工具类 */
.text-accent { color:#bc6c25; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.7; line-height:1.7; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ⚠️ 响应式 */
@media (max-width: 768px) {
  .hero h1 { font-size:2.2rem; }
  .hero::after { font-size:4rem; letter-spacing:20px; }
  .feature-block { grid-template-columns:1fr; gap:40px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .main-nav { display:none; }
  .menu-toggle { display:flex; align-items:center; justify-content:center; width:40px; height:40px; }
  .main-nav.open { display:flex; flex-direction:column; position:absolute; top:72px; left:0; width:100%; background:#fff8f0; padding:24px; gap:16px; border-bottom:2px solid #d4b896; }
  .section-title { font-size:1.7rem; }
}
@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; gap:12px; }
  .hero h1 { font-size:1.8rem; }
  .hero-eyebrow { font-size:0.7rem; }
  .cta-banner h2 { font-size:1.4rem; }
}