*, *::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:#fdf6ee; color:#3d2c1e; }

.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; position:relative; }
.section:nth-child(even) { background:#f8ede1; }

/* 导航 — 仿旧报纸油墨质感 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(253,246,238,0.92); backdrop-filter:blur(10px); border-bottom:3px solid #c9a87c; }
.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:#3d2c1e; letter-spacing:2px; }
.logo-icon { width:36px; height:36px; border-radius:50%; background:#c9a87c; color:#fdf6ee; display:flex; align-items:center; justify-content:center; font-size:1rem; box-shadow:0 2px 0 #a07d55; }
.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:#3d2c1e; transition:0.2s; border-bottom:2px solid transparent; padding-bottom:4px; }
.main-nav a:hover { border-bottom-color:#c9a87c; }
.nav-cta { padding:8px 22px; border-radius:0; background:#c9a87c; color:#fdf6ee!important; font-weight:700; border:2px solid #3d2c1e; box-shadow:0 3px 0 #3d2c1e; }
.nav-cta:hover { transform:translateY(-2px); box-shadow:0 5px 0 #3d2c1e; }
.menu-toggle { display:none; background:none; border:2px solid #3d2c1e; width:36px; height:36px; align-items:center; justify-content:center; cursor:pointer; font-size:1.2rem; color:#3d2c1e; }

/* 首页Hero — 复古丝网印刷风格 */
.hero { min-height:70vh; display:flex; align-items:center; position:relative; overflow:hidden; }
.hero::before { content:''; position:absolute; top:-20%; right:-10%; width:400px; height:400px; background:radial-gradient(circle, #e4cba8 0%, transparent 70%); opacity:0.4; pointer-events:none; }
.hero-content { max-width:720px; position:relative; z-index:1; }
.hero-eyebrow { display:inline-block; font-size:0.75rem; font-weight:700; padding:6px 16px; background:#3d2c1e; color:#fdf6ee; letter-spacing:3px; margin-bottom:20px; text-transform:uppercase; }
.hero h1 { font-size:3.2rem; line-height:1.1; margin-bottom:20px; font-weight:900; color:#2a1c10; text-shadow:3px 3px 0 #e4cba8; }
.hero p { font-size:1.1rem; opacity:0.8; max-width:560px; margin-bottom:36px; font-weight:400; }
.hero-buttons { display:flex; gap:14px; }
.hero-image { border-radius:0; overflow:hidden; border:4px solid #3d2c1e; box-shadow:8px 8px 0 #c9a87c; }
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 — 粗粝手风琴感 */
.btn { display:inline-flex; align-items:center; gap:10px; padding:14px 32px; border-radius:0; font-weight:700; cursor:pointer; border:2px solid #3d2c1e; text-decoration:none; transition:0.15s; font-size:0.9rem; letter-spacing:1px; }
.btn-primary { background:#c9a87c; color:#fdf6ee; box-shadow:0 4px 0 #3d2c1e; }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 6px 0 #3d2c1e; }
.btn-outline { background:transparent; color:#3d2c1e; box-shadow:0 4px 0 #3d2c1e; }
.btn-outline:hover { background:#e4cba8; transform:translateY(-2px); }

/* 标签/标题 — 油印字体 */
.section-label { display:inline-block; font-size:0.75rem; font-weight:700; letter-spacing:4px; margin-bottom:14px; color:#a07d55; text-transform:uppercase; border-bottom:2px solid #c9a87c; padding-bottom:4px; }
.section-title { font-size:2.4rem; margin-bottom:14px; font-weight:900; color:#2a1c10; line-height:1.2; }
.section-desc { max-width:600px; opacity:0.7; margin-bottom:40px; font-size:1.05rem; }

/* 卡片网格 — 卡片层叠阴影 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:32px; }
.category-card { border-radius:0; padding:32px 28px; background:#fdf6ee; border:2px solid #3d2c1e; transition:0.2s; box-shadow:6px 6px 0 #c9a87c; }
.category-card:hover { transform:translate(-4px,-4px); box-shadow:10px 10px 0 #c9a87c; }
.card-icon { width:52px; height:52px; border-radius:0; background:#e4cba8; display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:1.5rem; border:2px solid #3d2c1e; }
.card-link { font-weight:700; font-size:0.85rem; text-decoration:none; color:#c9a87c; border-bottom:2px solid transparent; transition:0.2s; }
.card-link:hover { border-bottom-color:#c9a87c; }

/* 特性块 — 错位布局 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center; }
.feature-image { border-radius:0; overflow:hidden; border:4px solid #3d2c1e; box-shadow:8px 8px 0 #c9a87c; }
.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; }
.feature-list li::before { content:'✦'; font-weight:700; color:#c9a87c; font-size:1.2rem; }

/* 数据条 — 粗体数字块 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.stat-item { padding:28px 16px; border-radius:0; background:#fdf6ee; border:2px solid #3d2c1e; box-shadow:4px 4px 0 #c9a87c; }
.stat-number { font-size:2.8rem; font-weight:900; color:#2a1c10; line-height:1; }
.stat-label { font-size:0.85rem; opacity:0.7; margin-top:8px; font-weight:600; letter-spacing:1px; }

/* 内容墙 — 报纸剪贴栏 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:28px; }
.content-wall-item { border-radius:0; overflow:hidden; background:#fdf6ee; border:2px solid #3d2c1e; transition:0.2s; box-shadow:4px 4px 0 #c9a87c; }
.content-wall-item:hover { transform:translate(-3px,-3px); box-shadow:7px 7px 0 #c9a87c; }
.content-wall-item img { width:100%; height:200px; object-fit:cover; border-bottom:2px solid #3d2c1e; display:block; }
.content-wall-body { padding:22px 20px; }

/* FAQ — 折叠卡片 */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:2px solid #3d2c1e; border-radius:0; margin-bottom:10px; overflow:hidden; cursor:pointer; background:#fdf6ee; }
.faq-item .faq-question { padding:18px 22px; font-weight:700; display:flex; justify-content:space-between; align-items:center; background:#f8ede1; border-bottom:1px solid #e4cba8; font-size:1.05rem; }
.faq-item .faq-question::after { content:'+'; font-size:1.4rem; font-weight:700; color:#c9a87c; }
.faq-item.open .faq-question::after { content:'−'; }
.faq-item .faq-answer { padding:0 22px 18px; display:none; opacity:0.8; line-height:1.6; }
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 — 实色冲击 */
.cta-banner { padding:64px 24px; text-align:center; border-radius:0; background:#c9a87c; color:#fdf6ee; border:3px solid #3d2c1e; box-shadow:0 8px 0 #3d2c1e; }
.cta-banner h2 { color:#fdf6ee; font-size:2rem; font-weight:900; }
.cta-banner .btn-primary { background:#fdf6ee; color:#3d2c1e; box-shadow:0 4px 0 #3d2c1e; }
.cta-banner .btn-primary:hover { background:#e4cba8; }

/* 页脚 — 深色底纹 */
.site-footer { padding:60px 0 28px; background:#3d2c1e; color:#e4cba8; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand { }
.footer-col { }
.footer-col h4 { color:#fdf6ee; font-weight:700; margin-bottom:14px; letter-spacing:1px; }
.footer-col a { color:#c9a87c; text-decoration:none; display:block; padding:4px 0; font-size:0.9rem; }
.footer-col a:hover { color:#fdf6ee; }
.footer-bottom { border-top:2px solid #c9a87c; margin-top:40px; padding-top:24px; text-align:center; font-size:0.85rem; opacity:0.7; }

/* 工具类 */
.text-accent { color:#c9a87c; }
.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; }

/* 响应式 */
@media (max-width: 768px) {
  .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; }
  .main-nav.open { display:flex; flex-direction:column; position:absolute; top:72px; left:0; width:100%; background:#fdf6ee; padding:24px; border-bottom:3px solid #c9a87c; gap:16px; }
  .hero h1 { font-size:2.2rem; }
  .section-title { font-size:1.8rem; }
}
@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; }
}