*, *::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:#faf7f2; color:#2d2a24; }

/* 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:#f5f0e9; }

/* 导航 — 报纸卷轴风格 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(250,247,242,0.92); backdrop-filter:blur(12px); border-bottom:2px solid #d4c5a9; }
.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:1.4rem; text-decoration:none; color:#2d2a24; letter-spacing:-0.5px; }
.logo-icon { width:40px; height:40px; border-radius:50%; background:#e74c3c; display:flex; align-items:center; justify-content:center; font-size:1.2rem; color:#fff; box-shadow:0 2px 8px rgba(231,76,60,0.3); }
.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:#2d2a24; transition:0.2s; letter-spacing:0.5px; text-transform:uppercase; position:relative; }
.main-nav a::after { content:''; position:absolute; bottom:-4px; left:0; width:0; height:2px; background:#e74c3c; transition:0.3s; }
.main-nav a:hover::after { width:100%; }
.nav-cta { padding:8px 22px; border-radius:0; background:#e74c3c; color:#fff!important; font-weight:700; letter-spacing:1px; }
.nav-cta::after { display:none!important; }
.menu-toggle { display:none; background:none; border:2px solid #2d2a24; padding:8px 12px; cursor:pointer; font-size:1.2rem; }

/* Hero — 大乱斗宣言 */
.hero { min-height:75vh; display:flex; align-items:center; position:relative; background:linear-gradient(135deg, #faf7f2 0%, #f0e6d6 100%); overflow:hidden; }
.hero::before { content:'⚔️'; position:absolute; font-size:20rem; opacity:0.04; top:-10%; right:-5%; transform:rotate(15deg); }
.hero-content { max-width:720px; position:relative; z-index:2; }
.hero-eyebrow { display:inline-block; font-size:0.8rem; font-weight:700; padding:6px 16px; background:#e74c3c; color:#fff; letter-spacing:2px; margin-bottom:20px; text-transform:uppercase; }
.hero h1 { font-size:3.5rem; line-height:1.1; margin-bottom:20px; font-weight:900; color:#1a1814; letter-spacing:-1px; }
.hero h1 span { color:#e74c3c; display:inline-block; transform:skew(-5deg); }
.hero p { font-size:1.15rem; opacity:0.75; max-width:560px; margin-bottom:32px; line-height:1.7; }
.hero-buttons { display:flex; gap:14px; }
.hero-image { border-radius:0; overflow:hidden; box-shadow:12px 12px 0 rgba(231,76,60,0.3); border:2px solid #2d2a24; }

/* 按钮 — 硬朗棱角 */
.btn { display:inline-flex; align-items:center; gap:8px; padding:14px 32px; border-radius:0; font-weight:700; cursor:pointer; border:none; text-decoration:none; transition:0.2s; text-transform:uppercase; letter-spacing:1px; font-size:0.85rem; }
.btn-primary { background:#e74c3c; color:#fff; box-shadow:4px 4px 0 #2d2a24; }
.btn-primary:hover { transform:translate(-2px,-2px); box-shadow:6px 6px 0 #2d2a24; }
.btn-outline { background:transparent; border:2px solid #2d2a24; color:#2d2a24; box-shadow:4px 4px 0 #2d2a24; }
.btn-outline:hover { transform:translate(-2px,-2px); box-shadow:6px 6px 0 #2d2a24; }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.75rem; font-weight:700; letter-spacing:3px; padding:4px 12px; background:#2d2a24; color:#faf7f2; margin-bottom:16px; text-transform:uppercase; }
.section-title { font-size:2.4rem; margin-bottom:14px; font-weight:900; color:#1a1814; letter-spacing:-0.5px; }
.section-desc { max-width:600px; opacity:0.7; margin-bottom:40px; font-size:1.05rem; line-height:1.6; }

/* 卡片网格 — 战斗卡片 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:24px; }
.category-card { border-radius:0; padding:32px; border:2px solid #2d2a24; background:#fff; transition:0.2s; box-shadow:6px 6px 0 rgba(45,42,36,0.15); }
.category-card:hover { transform:translate(-4px,-4px); box-shadow:10px 10px 0 rgba(45,42,36,0.2); }
.card-icon { width:52px; height:52px; border-radius:0; background:#e74c3c; display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:1.5rem; color:#fff; }
.card-link { font-weight:700; font-size:0.8rem; text-decoration:none; color:#e74c3c; text-transform:uppercase; letter-spacing:1px; }

/* 特性块 — 冲突美学 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.feature-image { border-radius:0; overflow:hidden; border:2px solid #2d2a24; box-shadow:8px 8px 0 #e74c3c; }
.feature-image img { width:100%; height:auto; display:block; }
.feature-text { }
.feature-list { list-style:none; }
.feature-list li { padding:8px 0; display:flex; align-items:center; gap:10px; font-weight:500; border-bottom:1px dashed #d4c5a9; }
.feature-list li::before { content:'⚡'; font-weight:700; color:#e74c3c; }

/* 数据条 — 战报 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.stat-item { padding:28px 24px; border-radius:0; border:2px solid #2d2a24; background:#fff; box-shadow:4px 4px 0 rgba(45,42,36,0.1); }
.stat-number { font-size:2.8rem; font-weight:900; color:#e74c3c; line-height:1; }
.stat-label { font-size:0.85rem; opacity:0.6; margin-top:8px; text-transform:uppercase; letter-spacing:1px; font-weight:600; }

/* 内容墙 — 乱斗集锦 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:24px; }
.content-wall-item { border-radius:0; overflow:hidden; border:2px solid #2d2a24; background:#fff; transition:0.2s; box-shadow:4px 4px 0 rgba(45,42,36,0.1); }
.content-wall-item:hover { transform:translate(-3px,-3px); box-shadow:8px 8px 0 rgba(45,42,36,0.15); }
.content-wall-item img { width:100%; height:200px; object-fit:cover; border-bottom:2px solid #2d2a24; }
.content-wall-body { padding:20px; }
.content-wall-body h3 { font-weight:800; margin-bottom:8px; }
.content-wall-body p { font-size:0.9rem; opacity:0.7; }

/* FAQ — 擂台问答 */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:2px solid #2d2a24; border-radius:0; margin-bottom:10px; overflow:hidden; cursor:pointer; background:#fff; }
.faq-item .faq-question { padding:18px 22px; font-weight:700; display:flex; justify-content:space-between; align-items:center; background:#f5f0e9; transition:0.2s; }
.faq-item .faq-question::after { content:'▼'; font-size:0.8rem; transition:0.3s; }
.faq-item.open .faq-question::after { transform:rotate(180deg); }
.faq-item .faq-answer { padding:0 22px 18px; display:none; opacity:0.75; line-height:1.6; }
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 — 挑战书 */
.cta-banner { padding:64px 24px; text-align:center; border-radius:0; background:#e74c3c; color:#fff; border:2px solid #2d2a24; box-shadow:8px 8px 0 #2d2a24; }
.cta-banner h2 { color:#fff; font-size:2rem; font-weight:900; }
.cta-banner p { color:rgba(255,255,255,0.85); margin-bottom:24px; }
.cta-banner .btn-primary { background:#fff; color:#e74c3c; box-shadow:4px 4px 0 #2d2a24; }

/* 页脚 — 角斗场底栏 */
.site-footer { padding:56px 0 28px; background:#1a1814; color:#d4c5a9; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand { }
.footer-brand .logo { color:#faf7f2; }
.footer-col h4 { color:#faf7f2; font-weight:700; margin-bottom:16px; text-transform:uppercase; letter-spacing:1px; font-size:0.85rem; }
.footer-col a { display:block; color:#d4c5a9; text-decoration:none; padding:4px 0; font-size:0.9rem; transition:0.2s; }
.footer-col a:hover { color:#e74c3c; padding-left:4px; }
.footer-bottom { border-top:1px solid rgba(212,197,169,0.2); margin-top:40px; padding-top:20px; text-align:center; font-size:0.85rem; color:#8a7f6e; }

/* 工具类 */
.text-accent { color:#e74c3c; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.7; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* 装饰性斜线元素 */
.section::after { content:'⚔️'; position:absolute; bottom:20px; right:40px; font-size:2rem; opacity:0.08; }

/* 响应式 */
@media (max-width: 768px) {
  .feature-block { grid-template-columns:1fr; }
  .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; gap:6px; }
  .main-nav.open { display:flex; flex-direction:column; position:absolute; top:72px; left:0; width:100%; background:#faf7f2; padding:24px; border-bottom:2px solid #d4c5a9; gap:16px; }
  .hero h1 { font-size:2.4rem; }
  .hero::before { font-size:10rem; }
}
@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; }
}