*, *::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:#fef9f0; color:#3d2b1f; }

.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; position:relative; }
.section:nth-child(even) { background:rgba(255,215,175,0.15); }

/* 导航 — 暖白半透明+藤蔓阴影 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(254,249,240,0.92); backdrop-filter:blur(12px); border-bottom:1px solid rgba(200,160,130,0.3); box-shadow:0 2px 20px rgba(180,130,90,0.08); }
.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:800; font-size:1.3rem; text-decoration:none; color:#4a3728; letter-spacing:2px; }
.logo-icon { width:40px; height:40px; border-radius:50%; background:linear-gradient(135deg,#e8c4a0,#d4a373); display:flex; align-items:center; justify-content:center; font-size:1.2rem; color:#fff; box-shadow:0 2px 8px rgba(180,120,80,0.3); }
.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:#5c4a3a; transition:0.3s; position:relative; padding-bottom:4px; }
.main-nav a::after { content:''; position:absolute; bottom:0; left:0; width:0; height:2px; background:#d4a373; transition:0.3s; }
.main-nav a:hover { color:#8b5e3c; }
.main-nav a:hover::after { width:100%; }
.nav-cta { padding:8px 22px; border-radius:30px; background:linear-gradient(135deg,#d4a373,#b88a5e); color:#fff!important; font-weight:600; box-shadow:0 2px 10px rgba(180,120,80,0.25); }
.nav-cta::after { display:none!important; }
.menu-toggle { display:none; background:none; border:none; font-size:1.5rem; color:#4a3728; cursor:pointer; }

/* 首页Hero — 柔光渐变+有机形态 */
.hero { min-height:70vh; display:flex; align-items:center; position:relative; background:radial-gradient(ellipse at 20% 50%, rgba(232,196,160,0.25) 0%, transparent 60%), radial-gradient(ellipse at 80% 50%, rgba(212,163,115,0.15) 0%, transparent 50%); }
.hero::before { content:''; position:absolute; top:-40px; right:-60px; width:300px; height:300px; border-radius:50%; background:rgba(232,196,160,0.12); filter:blur(60px); 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; background:rgba(212,163,115,0.2); color:#8b5e3c; letter-spacing:2px; margin-bottom:16px; border:1px solid rgba(212,163,115,0.3); }
.hero h1 { font-size:3.2rem; line-height:1.15; margin-bottom:20px; color:#3d2b1f; font-weight:800; letter-spacing:-0.5px; }
.hero h1 span { color:#b88a5e; }
.hero p { font-size:1.1rem; opacity:0.75; max-width:560px; margin-bottom:36px; line-height:1.7; color:#5c4a3a; }
.hero-buttons { display:flex; gap:16px; flex-wrap:wrap; }
.hero-image { border-radius:20px; overflow:hidden; box-shadow:0 8px 30px rgba(180,130,90,0.15); }
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 — 陶土质感 */
.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:0.3s; font-size:0.95rem; }
.btn-primary { background:linear-gradient(135deg,#d4a373,#b88a5e); color:#fff; box-shadow:0 4px 14px rgba(180,120,80,0.3); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 6px 20px rgba(180,120,80,0.4); }
.btn-outline { background:transparent; border:1.5px solid #b88a5e; color:#8b5e3c; }
.btn-outline:hover { background:rgba(212,163,115,0.1); }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.75rem; font-weight:700; letter-spacing:3px; text-transform:uppercase; margin-bottom:12px; color:#b88a5e; }
.section-title { font-size:2.4rem; margin-bottom:14px; color:#3d2b1f; font-weight:800; letter-spacing:-0.3px; }
.section-desc { max-width:600px; opacity:0.7; margin-bottom:40px; line-height:1.6; color:#5c4a3a; }

/* 卡片网格 — 暖陶卡片 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:28px; }
.category-card { border-radius:16px; padding:32px 28px; background:#fff; border:1px solid rgba(200,160,130,0.2); transition:0.35s; box-shadow:0 2px 12px rgba(180,130,90,0.05); }
.category-card:hover { transform:translateY(-5px); box-shadow:0 8px 28px rgba(180,130,90,0.12); border-color:#d4a373; }
.card-icon { width:52px; height:52px; border-radius:14px; background:linear-gradient(135deg,#f0ddd0,#e8c4a0); display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:1.5rem; color:#8b5e3c; }
.card-link { font-weight:600; font-size:0.85rem; text-decoration:none; color:#b88a5e; display:inline-flex; align-items:center; gap:6px; }
.card-link:hover { color:#8b5e3c; }

/* 特性块 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.feature-image { border-radius:16px; overflow:hidden; box-shadow:0 6px 24px rgba(180,130,90,0.12); }
.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-size:1rem; color:#4a3728; }
.feature-list li::before { content:'✦'; font-weight:700; color:#d4a373; 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 16px; border-radius:16px; background:#fff; border:1px solid rgba(200,160,130,0.2); box-shadow:0 2px 12px rgba(180,130,90,0.05); }
.stat-number { font-size:2.6rem; font-weight:800; color:#3d2b1f; line-height:1; }
.stat-number::after { content:''; display:block; width:30px; height:3px; background:linear-gradient(90deg,#d4a373,#e8c4a0); margin:10px auto 8px; border-radius:2px; }
.stat-label { font-size:0.9rem; opacity:0.6; margin-top:4px; color:#5c4a3a; }

/* 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; background:#fff; border:1px solid rgba(200,160,130,0.2); transition:0.35s; box-shadow:0 2px 12px rgba(180,130,90,0.05); }
.content-wall-item:hover { transform:translateY(-5px); box-shadow:0 8px 28px rgba(180,130,90,0.12); }
.content-wall-item img { width:100%; height:200px; object-fit:cover; }
.content-wall-body { padding:22px; }
.content-wall-body h4 { font-size:1.1rem; margin-bottom:6px; color:#3d2b1f; }
.content-wall-body p { font-size:0.85rem; opacity:0.7; color:#5c4a3a; }

/* FAQ — 暖色折叠 */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1px solid rgba(200,160,130,0.25); border-radius:14px; margin-bottom:10px; overflow:hidden; cursor:pointer; background:#fff; transition:0.3s; }
.faq-item:hover { border-color:#d4a373; }
.faq-item .faq-question { padding:18px 24px; font-weight:700; display:flex; justify-content:space-between; color:#3d2b1f; font-size:1rem; }
.faq-item .faq-question::after { content:'+'; font-size:1.2rem; color:#b88a5e; transition:0.3s; }
.faq-item.open .faq-question::after { content:'−'; }
.faq-item .faq-answer { padding:0 24px 20px; display:none; opacity:0.75; color:#5c4a3a; line-height:1.6; }
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 — 陶土渐变 */
.cta-banner { padding:64px 24px; text-align:center; border-radius:20px; background:linear-gradient(135deg,#d4a373,#b88a5e,#a07050); color:#fff; box-shadow:0 8px 30px rgba(180,120,80,0.25); }
.cta-banner h2 { color:#fff; font-size:2rem; margin-bottom:12px; }
.cta-banner p { opacity:0.9; margin-bottom:24px; }
.cta-banner .btn-primary { background:#fff; color:#8b5e3c; box-shadow:0 4px 14px rgba(0,0,0,0.1); }
.cta-banner .btn-primary:hover { background:#fef9f0; }

/* 页脚 */
.site-footer { padding:60px 0 28px; background:#3d2b1f; color:#e8ddd0; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand { }
.footer-brand .logo { color:#e8ddd0; }
.footer-brand .logo-icon { background:linear-gradient(135deg,#d4a373,#b88a5e); }
.footer-col { }
.footer-col h5 { font-size:0.9rem; font-weight:700; margin-bottom:16px; color:#f0ddd0; letter-spacing:1px; }
.footer-col ul { list-style:none; }
.footer-col ul li { padding:4px 0; }
.footer-col ul li a { color:#c4b0a0; text-decoration:none; font-size:0.85rem; transition:0.2s; }
.footer-col ul li a:hover { color:#e8c4a0; }
.footer-bottom { border-top:1px solid rgba(255,215,175,0.15); margin-top:48px; padding-top:24px; text-align:center; font-size:0.85rem; color:#c4b0a0; }

/* 工具类 */
.text-accent { color:#b88a5e; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.7; color:#5c4a3a; line-height:1.7; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* 装饰性藤蔓纹理（可选） */
.section::after { content:''; position:absolute; bottom:0; left:0; width:100%; height:4px; background:linear-gradient(90deg, transparent, #d4a373, transparent); opacity:0.15; }

/* ⚠️ 响应式 */
@media (max-width: 768px) {
  .hero h1 { font-size:2.2rem; }
  .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; justify-content:center; }
  .main-nav.open { display:flex; flex-direction:column; position:absolute; top:68px; left:0; width:100%; background:#fef9f0; padding:24px; gap:16px; border-bottom:1px solid rgba(200,160,130,0.2); }
  .main-nav.open a { padding:8px 0; }
  .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:2rem; }
}