*, *::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; }
.section:nth-child(even) { background:#f5f0e8; }

/* 导航 — 奶油陶土风 */
.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:1px solid rgba(200,180,160,0.3); }
.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:#2d2a24; letter-spacing:1px; }
.logo-icon { width:38px; height:38px; border-radius:50%; background:linear-gradient(135deg, #d4a373, #c08457); display:flex; align-items:center; justify-content:center; font-size:1rem; color:#fff; box-shadow:0 4px 12px rgba(196,132,87,0.3); }
.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:#5c5548; transition:0.2s; letter-spacing:0.5px; }
.main-nav a:hover { color:#c08457; }
.nav-cta { padding:8px 22px; border-radius:30px; background:linear-gradient(135deg, #d4a373, #b8865b); color:#fff!important; font-weight:600; box-shadow:0 4px 14px rgba(196,132,87,0.3); }
.nav-cta:hover { transform:translateY(-2px); box-shadow:0 6px 20px rgba(196,132,87,0.4); }
.menu-toggle { display:none; background:none; border:none; font-size:1.4rem; color:#2d2a24; cursor:pointer; }

/* 首页Hero — 陶土层叠感 */
.hero { min-height:70vh; display:flex; align-items:center; position:relative; overflow:hidden; }
.hero::before { content:''; position:absolute; top:-30%; right:-10%; width:500px; height:500px; border-radius:50%; background:radial-gradient(circle, rgba(212,163,115,0.15), transparent 70%); pointer-events:none; }
.hero-content { max-width:720px; position:relative; z-index:1; }
.hero-eyebrow { display:inline-block; font-size:0.8rem; font-weight:600; padding:6px 18px; border-radius:30px; background:#e8ddd0; color:#7a6b5a; letter-spacing:1.5px; margin-bottom:16px; }
.hero h1 { font-size:3rem; line-height:1.15; margin-bottom:20px; color:#2d2a24; font-weight:800; letter-spacing:-0.5px; }
.hero h1 span { color:#c08457; }
.hero p { font-size:1.1rem; color:#6b6255; max-width:560px; margin-bottom:32px; line-height:1.7; }
.hero-buttons { display:flex; gap:14px; }
.hero-image { border-radius:16px; overflow:hidden; box-shadow:0 20px 40px rgba(0,0,0,0.06); }
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 — 陶土质感 */
.btn { display:inline-flex; align-items:center; gap:8px; padding:14px 32px; border-radius:30px; font-weight:600; cursor:pointer; border:none; text-decoration:none; transition:0.25s; font-size:0.95rem; }
.btn-primary { background:linear-gradient(135deg, #d4a373, #b8865b); color:#fff; box-shadow:0 4px 14px rgba(196,132,87,0.3); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 8px 24px rgba(196,132,87,0.4); }
.btn-outline { background:transparent; border:1.5px solid #c08457; color:#c08457; }
.btn-outline:hover { background:#c08457; color:#fff; }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.75rem; font-weight:600; letter-spacing:3px; color:#b8865b; text-transform:uppercase; margin-bottom:12px; }
.section-title { font-size:2.2rem; margin-bottom:14px; color:#2d2a24; font-weight:700; }
.section-desc { max-width:600px; color:#6b6255; margin-bottom:40px; line-height:1.7; }

/* 卡片网格 — 陶土卡片 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:24px; }
.category-card { border-radius:16px; padding:32px; background:#fff; border:1px solid #e8ddd0; transition:0.3s; box-shadow:0 2px 8px rgba(0,0,0,0.03); }
.category-card:hover { transform:translateY(-5px); box-shadow:0 12px 28px rgba(196,132,87,0.12); border-color:#d4a373; }
.card-icon { width:52px; height:52px; border-radius:14px; background:linear-gradient(135deg, #f5ede4, #e8ddd0); display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:1.4rem; color:#b8865b; }
.card-link { font-weight:600; font-size:0.85rem; text-decoration:none; color:#c08457; display:inline-flex; align-items:center; gap:6px; }
.card-link:hover { gap:10px; }

/* 特性块 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.feature-image { border-radius:16px; overflow:hidden; box-shadow:0 12px 24px rgba(0,0,0,0.05); }
.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; color:#5c5548; }
.feature-list li::before { content:'✦'; font-weight:700; color:#c08457; font-size:1.1rem; }

/* 数据条 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.stat-item { padding:28px 20px; border-radius:16px; background:#fff; border:1px solid #e8ddd0; transition:0.3s; }
.stat-item:hover { border-color:#d4a373; box-shadow:0 8px 20px rgba(196,132,87,0.08); }
.stat-number { font-size:2.4rem; font-weight:800; color:#2d2a24; }
.stat-label { font-size:0.9rem; color:#8a7f6e; margin-top:6px; letter-spacing:0.5px; }

/* 内容墙 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:24px; }
.content-wall-item { border-radius:16px; overflow:hidden; background:#fff; border:1px solid #e8ddd0; transition:0.3s; }
.content-wall-item:hover { transform:translateY(-4px); box-shadow:0 12px 28px rgba(196,132,87,0.1); }
.content-wall-item img { width:100%; height:200px; object-fit:cover; }
.content-wall-body { padding:22px; }
.content-wall-body h3 { font-size:1.1rem; margin-bottom:8px; color:#2d2a24; }
.content-wall-body p { color:#6b6255; font-size:0.9rem; line-height:1.6; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1px solid #e8ddd0; 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 24px; font-weight:600; display:flex; justify-content:space-between; color:#2d2a24; }
.faq-item .faq-question::after { content:'+'; font-size:1.3rem; color:#c08457; transition:0.3s; }
.faq-item.open .faq-question::after { content:'−'; }
.faq-item .faq-answer { padding:0 24px 18px; display:none; color:#6b6255; line-height:1.7; }
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 — 陶土渐变 */
.cta-banner { padding:60px 24px; text-align:center; border-radius:20px; background:linear-gradient(135deg, #d4a373, #b8865b, #a0714f); color:#fff; box-shadow:0 16px 32px rgba(196,132,87,0.2); }
.cta-banner h2 { color:#fff; font-size:2rem; margin-bottom:14px; }
.cta-banner p { color:rgba(255,255,255,0.85); margin-bottom:28px; }
.cta-banner .btn-primary { background:#fff; color:#b8865b; box-shadow:0 4px 14px rgba(0,0,0,0.1); }
.cta-banner .btn-primary:hover { transform:translateY(-2px); box-shadow:0 8px 24px rgba(0,0,0,0.15); }

/* 页脚 */
.site-footer { padding:56px 0 28px; background:#2d2a24; color:#d9cfc0; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand p { color:#b5a89a; line-height:1.7; }
.footer-col h4 { color:#f0e8de; margin-bottom:16px; font-size:1rem; }
.footer-col ul { list-style:none; }
.footer-col ul li { margin-bottom:8px; }
.footer-col ul li a { color:#b5a89a; text-decoration:none; transition:0.2s; }
.footer-col ul li a:hover { color:#d4a373; }
.footer-bottom { border-top:1px solid rgba(255,255,255,0.08); margin-top:40px; padding-top:20px; text-align:center; font-size:0.85rem; color:#8a7f6e; }

/* 工具类 */
.text-accent { color:#c08457; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; color:#6b6255; line-height:1.7; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* 响应式 */
@media (max-width: 768px) {
  .feature-block { grid-template-columns:1fr; gap:32px; }
  .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; }
  .main-nav.open { display:flex; flex-direction:column; position:absolute; top:68px; left:0; width:100%; background:rgba(250,247,242,0.98); padding:24px; gap:16px; border-bottom:1px solid #e8ddd0; }
  .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; }
  .stat-number { font-size:1.8rem; }
}