*, *::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:#f5f0eb; color:#2c3e2d; }

.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; }
.section:nth-child(even) { background:#ebe4dc; }

/* 导航 — 水墨质感 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(245,240,235,0.92); backdrop-filter:blur(12px); border-bottom:1px solid #d4c9bc; }
.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:700; font-size:1.25rem; text-decoration:none; color:#2c3e2d; letter-spacing:2px; }
.logo-icon { width:40px; height:40px; border-radius:50%; background:#c0392b; display:flex; align-items:center; justify-content:center; font-size:1.2rem; color:#f5f0eb; font-weight:800; box-shadow:0 2px 8px rgba(192,57,43,0.3); }
.main-nav { display:flex; align-items:center; gap:28px; list-style:none; }
.main-nav a { text-decoration:none; font-size:0.9rem; font-weight:500; color:#4a5a4b; transition:0.2s; position:relative; padding:4px 0; }
.main-nav a::after { content:''; position:absolute; bottom:0; left:0; width:0; height:2px; background:#c0392b; transition:0.3s; }
.main-nav a:hover { color:#c0392b; }
.main-nav a:hover::after { width:100%; }
.nav-cta { padding:8px 24px; border-radius:30px; color:#f5f0eb!important; background:#c0392b; font-weight:600; letter-spacing:1px; }
.nav-cta::after { display:none!important; }
.menu-toggle { display:none; background:none; border:2px solid #c0392b; color:#c0392b; width:40px; height:40px; border-radius:8px; align-items:center; justify-content:center; cursor:pointer; font-size:1.2rem; }

/* 首页Hero — 中国红点缀 */
.hero { min-height:75vh; display:flex; align-items:center; position:relative; overflow:hidden; }
.hero::before { content:'P'; position:absolute; right:-80px; top:-60px; font-size:28rem; font-weight:900; color:rgba(192,57,43,0.06); line-height:1; pointer-events:none; }
.hero-content { max-width:720px; position:relative; z-index:1; }
.hero-eyebrow { display:inline-block; font-size:0.8rem; font-weight:700; padding:6px 18px; border-radius:30px; margin-bottom:18px; background:#c0392b; color:#f5f0eb; letter-spacing:3px; }
.hero h1 { font-size:3.2rem; line-height:1.15; margin-bottom:20px; color:#1a281b; font-weight:800; letter-spacing:-1px; }
.hero h1 span { color:#c0392b; position:relative; }
.hero h1 span::after { content:''; position:absolute; bottom:4px; left:0; width:100%; height:6px; background:rgba(192,57,43,0.2); }
.hero p { font-size:1.1rem; opacity:0.75; max-width:560px; margin-bottom:36px; line-height:1.7; color:#3d5040; }
.hero-buttons { display:flex; gap:16px; }
.hero-image { border-radius:16px; overflow:hidden; box-shadow:0 8px 32px rgba(192,57,43,0.12); }
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 — 圆润风格 */
.btn { display:inline-flex; align-items:center; gap:10px; padding:14px 32px; border-radius:30px; font-weight:600; cursor:pointer; border:none; text-decoration:none; transition:0.25s; font-size:0.95rem; letter-spacing:0.5px; }
.btn-primary { background:#c0392b; color:#f5f0eb; box-shadow:0 4px 14px rgba(192,57,43,0.25); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 6px 20px rgba(192,57,43,0.35); }
.btn-outline { background:transparent; border:2px solid #2c3e2d; color:#2c3e2d; }
.btn-outline:hover { background:#2c3e2d; color:#f5f0eb; }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.75rem; font-weight:700; letter-spacing:4px; margin-bottom:14px; color:#c0392b; text-transform:uppercase; }
.section-title { font-size:2.2rem; margin-bottom:14px; color:#1a281b; font-weight:800; letter-spacing:-0.5px; }
.section-desc { max-width:600px; opacity:0.7; margin-bottom:40px; line-height:1.6; color:#4a5a4b; }

/* 卡片网格 — 宣纸纹理感 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:28px; }
.category-card { border-radius:16px; padding:32px 28px; border:1px solid #d4c9bc; background:rgba(255,255,255,0.6); backdrop-filter:blur(4px); transition:0.3s; position:relative; overflow:hidden; }
.category-card::before { content:''; position:absolute; top:0; left:0; width:4px; height:100%; background:#c0392b; border-radius:0 4px 4px 0; }
.category-card:hover { transform:translateY(-4px); box-shadow:0 8px 24px rgba(192,57,43,0.12); border-color:#c0392b; }
.card-icon { width:52px; height:52px; border-radius:12px; background:#ebe4dc; display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:1.5rem; color:#c0392b; }
.category-card h3 { font-size:1.15rem; margin-bottom:8px; color:#1a281b; }
.category-card p { font-size:0.9rem; opacity:0.65; margin-bottom:16px; line-height:1.5; }
.card-link { font-weight:600; font-size:0.85rem; text-decoration:none; color:#c0392b; display:inline-flex; align-items:center; gap:6px; }
.card-link:hover { gap:10px; }

/* 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 4px 20px rgba(0,0,0,0.06); }
.feature-image img { width:100%; height:auto; display:block; }
.feature-text h3 { font-size:1.6rem; margin-bottom:16px; color:#1a281b; }
.feature-text p { line-height:1.7; opacity:0.7; margin-bottom:20px; }
.feature-list { list-style:none; }
.feature-list li { padding:8px 0; display:flex; align-items:center; gap:10px; font-size:0.95rem; color:#2c3e2d; }
.feature-list li::before { content:'✦'; font-weight:700; color:#c0392b; font-size:1.1rem; }

/* 数据条 — 红白对比 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:28px; text-align:center; }
.stat-item { padding:32px 20px; border-radius:16px; border:1px solid #d4c9bc; background:rgba(255,255,255,0.5); backdrop-filter:blur(4px); }
.stat-number { font-size:2.6rem; font-weight:800; color:#c0392b; line-height:1; }
.stat-label { font-size:0.9rem; opacity:0.6; margin-top:8px; color:#4a5a4b; letter-spacing:1px; }

/* 内容墙 — 杂志风格 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:28px; }
.content-wall-item { border-radius:16px; overflow:hidden; border:1px solid #d4c9bc; background:#fff; transition:0.3s; }
.content-wall-item:hover { transform:translateY(-4px); box-shadow:0 8px 24px rgba(192,57,43,0.1); border-color:#c0392b; }
.content-wall-item img { width:100%; height:200px; object-fit:cover; display:block; }
.content-wall-body { padding:22px 24px; }
.content-wall-body h4 { font-size:1rem; margin-bottom:6px; color:#1a281b; }
.content-wall-body p { font-size:0.85rem; opacity:0.6; line-height:1.5; }

/* FAQ — 折叠卡片 */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1px solid #d4c9bc; border-radius:14px; margin-bottom:10px; overflow:hidden; cursor:pointer; background:rgba(255,255,255,0.5); transition:0.2s; }
.faq-item:hover { border-color:#c0392b; }
.faq-item .faq-question { padding:18px 24px; font-weight:600; display:flex; justify-content:space-between; align-items:center; color:#1a281b; font-size:1rem; }
.faq-item .faq-question::after { content:'+'; font-size:1.4rem; color:#c0392b; font-weight:300; transition:0.3s; }
.faq-item.open .faq-question::after { content:'−'; }
.faq-item .faq-answer { padding:0 24px 18px; display:none; opacity:0.75; line-height:1.6; color:#4a5a4b; }
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 — 中国红背景 */
.cta-banner { padding:64px 24px; text-align:center; border-radius:16px; background:linear-gradient(135deg, #c0392b 0%, #a93226 100%); color:#f5f0eb; box-shadow:0 8px 32px rgba(192,57,43,0.25); }
.cta-banner h2 { color:#f5f0eb; font-size:2rem; margin-bottom:12px; }
.cta-banner p { opacity:0.85; margin-bottom:28px; font-size:1.05rem; }
.cta-banner .btn-primary { background:#f5f0eb; color:#c0392b; box-shadow:0 4px 14px rgba(0,0,0,0.1); }
.cta-banner .btn-primary:hover { background:#fff; }

/* 页脚 — 深色但不黑 */
.site-footer { padding:60px 0 28px; background:#1a281b; color:#d4c9bc; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand h3 { font-size:1.3rem; color:#f5f0eb; margin-bottom:12px; }
.footer-brand p { opacity:0.6; line-height:1.6; font-size:0.9rem; }
.footer-col h4 { color:#f5f0eb; font-size:0.95rem; margin-bottom:16px; letter-spacing:1px; }
.footer-col ul { list-style:none; }
.footer-col li { margin-bottom:8px; }
.footer-col a { color:#d4c9bc; text-decoration:none; font-size:0.9rem; opacity:0.7; transition:0.2s; }
.footer-col a:hover { opacity:1; color:#c0392b; }
.footer-bottom { border-top:1px solid rgba(212,201,188,0.15); margin-top:40px; padding-top:20px; text-align:center; font-size:0.85rem; opacity:0.5; }

/* 工具类 */
.text-accent { color:#c0392b; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.7; line-height:1.6; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* 响应式 */
@media (max-width: 768px) {
  .feature-block { grid-template-columns:1fr; gap:32px; }
  .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:68px; left:0; width:100%; background:#f5f0eb; padding:24px; gap:16px; border-bottom:1px solid #d4c9bc; }
  .hero h1 { font-size:2.2rem; }
  .hero::before { font-size:16rem; right:-40px; top:-30px; }
}
@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; }
}