/* 基础重置 */
*, *::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:#FFFAF5; color:#3D2C2C; line-height:1.6; -webkit-font-smoothing:antialiased; }

/* 核心布局 — 必须居中 */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; }
.section:nth-child(even) { background:#FFF5F0; }

/* 导航 — 固定顶部 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(255,250,245,0.92); backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px); border-bottom:1px solid #F0E0D8; box-shadow:0 1px 20px rgba(232,120,90,0.06); }
.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:8px; font-weight:700; font-size:1.2rem; text-decoration:none; color:#3D2C2C; letter-spacing:-0.02em; }
.logo-icon { width:36px; height:36px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:1rem; background:linear-gradient(135deg,#E8785A,#F0A050); color:#fff; }
.main-nav { display:flex; align-items:center; gap:24px; list-style:none; }
.main-nav a { text-decoration:none; font-size:0.9rem; font-weight:500; color:#6B5555; transition:0.2s; position:relative; }
.main-nav a:hover { color:#E8785A; }
.main-nav a::after { content:''; position:absolute; bottom:-4px; left:0; width:0; height:2px; background:#E8785A; border-radius:1px; transition:width 0.25s ease; }
.main-nav a:hover::after { width:100%; }
.nav-cta { padding:8px 20px; border-radius:8px; color:#fff!important; font-weight:600; background:linear-gradient(135deg,#E8785A,#D06548); box-shadow:0 4px 14px rgba(232,120,90,0.35); }
.nav-cta::after { display:none!important; }
.nav-cta:hover { transform:translateY(-1px); box-shadow:0 6px 20px rgba(232,120,90,0.45); }
.menu-toggle { display:none; flex-direction:column; gap:5px; cursor:pointer; padding:8px; background:none; border:none; }
.menu-toggle span { display:block; width:24px; height:2.5px; background:#3D2C2C; border-radius:2px; transition:0.3s; }

/* 首页Hero */
.hero { min-height:70vh; display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center; padding-top:68px; }
.hero-content { max-width:720px; }
.hero-eyebrow { display:inline-block; font-size:0.85rem; font-weight:600; padding:4px 14px; border-radius:20px; margin-bottom:16px; background:#FFF0E8; color:#D06548; letter-spacing:0.03em; }
.hero h1 { font-size:3rem; line-height:1.15; margin-bottom:20px; font-weight:800; color:#3D2C2C; letter-spacing:-0.03em; }
.hero h1 .highlight { background:linear-gradient(135deg,#E8785A,#F0A050); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.hero p { font-size:1.1rem; opacity:0.7; max-width:560px; margin-bottom:32px; color:#6B5555; line-height:1.7; }
.hero-buttons { display:flex; gap:14px; }
.hero-image { border-radius:16px; overflow:hidden; box-shadow:0 20px 60px rgba(232,120,90,0.15); position:relative; }
.hero-image::before { content:''; position:absolute; inset:0; background:linear-gradient(135deg,rgba(232,120,90,0.08),rgba(240,160,80,0.06)); z-index:1; pointer-events:none; border-radius:16px; }
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 */
.btn { display:inline-flex; align-items:center; gap:8px; padding:12px 28px; border-radius:8px; font-weight:600; cursor:pointer; border:none; text-decoration:none; transition:0.25s; font-size:0.95rem; letter-spacing:0.01em; }
.btn-primary { color:#fff; background:linear-gradient(135deg,#E8785A,#D06548); box-shadow:0 4px 16px rgba(232,120,90,0.3); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 8px 24px rgba(232,120,90,0.4); }
.btn-outline { background:transparent; border:1.5px solid #E8785A; color:#E8785A; }
.btn-outline:hover { background:#FFF5F0; border-color:#D06548; color:#D06548; transform:translateY(-2px); }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.8rem; font-weight:700; letter-spacing:3px; margin-bottom:12px; color:#6DBD95; text-transform:uppercase; position:relative; padding-left:14px; }
.section-label::before { content:''; position:absolute; left:0; top:50%; transform:translateY(-50%); width:6px; height:6px; border-radius:50%; background:#6DBD95; }
.section-title { font-size:2rem; margin-bottom:14px; font-weight:800; color:#3D2C2C; letter-spacing:-0.02em; }
.section-desc { max-width:600px; opacity:0.7; margin-bottom:40px; color:#6B5555; line-height:1.7; }

/* 卡片网格 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:24px; }
.category-card { border-radius:14px; padding:28px; border:1px solid #F0E0D8; transition:0.3s; background:#fff; position:relative; overflow:hidden; }
.category-card::before { content:''; position:absolute; top:0; left:0; width:100%; height:3px; background:linear-gradient(90deg,#E8785A,#F0A050); transform:scaleX(0); transform-origin:left; transition:transform 0.35s ease; border-radius:0 0 3px 3px; }
.category-card:hover::before { transform:scaleX(1); }
.category-card:hover { transform:translateY(-4px); box-shadow:0 12px 32px rgba(232,120,90,0.12); border-color:#E8C8B8; }
.card-icon { width:48px; height:48px; border-radius:12px; display:flex; align-items:center; justify-content:center; margin-bottom:16px; font-size:1.3rem; background:#FFF5F0; color:#E8785A; }
.card-link { font-weight:600; font-size:0.85rem; text-decoration:none; color:#E8785A; display:inline-flex; align-items:center; gap:6px; transition:gap 0.25s; }
.card-link:hover { gap:10px; color:#D06548; }

/* 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 16px 40px rgba(232,120,90,0.12); position:relative; }
.feature-image::after { content:''; position:absolute; inset:0; border-radius:16px; border:2px solid rgba(232,120,90,0.08); pointer-events:none; }
.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:#4D3C3C; font-size:0.95rem; }
.feature-list li::before { content:'✓'; font-weight:700; color:#6DBD95; font-size:1.1rem; flex-shrink:0; width:22px; height:22px; display:flex; align-items:center; justify-content:center; background:#EDF8F1; border-radius:50%; }

/* 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:14px; border:1px solid #F0E0D8; background:#fff; transition:0.3s; position:relative; }
.stat-item:hover { transform:translateY(-2px); box-shadow:0 8px 24px rgba(232,120,90,0.08); }
.stat-number { font-size:2.4rem; font-weight:800; background:linear-gradient(135deg,#E8785A,#F0A050); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.stat-label { font-size:0.9rem; opacity:0.6; margin-top:6px; color:#6B5555; }

/* 内容墙 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:24px; }
.content-wall-item { border-radius:14px; overflow:hidden; border:1px solid #F0E0D8; transition:0.3s; background:#fff; }
.content-wall-item:hover { transform:translateY(-4px); box-shadow:0 12px 32px rgba(232,120,90,0.12); border-color:#E8C8B8; }
.content-wall-item img { width:100%; height:200px; object-fit:cover; display:block; }
.content-wall-body { padding:20px; }
.content-wall-body h4 { font-weight:700; color:#3D2C2C; margin-bottom:6px; }
.content-wall-body p { font-size:0.9rem; color:#6B5555; opacity:0.8; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1px solid #F0E0D8; border-radius:12px; margin-bottom:8px; overflow:hidden; cursor:pointer; background:#fff; transition:0.25s; }
.faq-item:hover { border-color:#E8C8B8; }
.faq-item .faq-question { padding:16px 20px; font-weight:600; display:flex; justify-content:space-between; align-items:center; color:#3D2C2C; user-select:none; }
.faq-item .faq-question::after { content:'+'; font-size:1.2rem; font-weight:400; color:#E8785A; transition:transform 0.3s; flex-shrink:0; margin-left:12px; }
.faq-item.open .faq-question::after { content:'−'; transform:rotate(180deg); }
.faq-item .faq-answer { padding:0 20px 16px; display:none; opacity:0.7; color:#6B5555; line-height:1.7; }
.faq-item.open .faq-answer { display:block; }
.faq-item.open { border-color:#E8785A; box-shadow:0 4px 16px rgba(232,120,90,0.08); }

/* CTA横幅 */
.cta-banner { padding:56px 24px; text-align:center; border-radius:16px; color:#fff; background:linear-gradient(135deg,#E8785A,#D06548,#F0A050); background-size:200% 200%; animation:ctaGradient 6s ease infinite; position:relative; overflow:hidden; }
@keyframes ctaGradient { 0%{background-position:0% 50%;} 50%{background-position:100% 50%;} 100%{background-position:0% 50%;} }
.cta-banner::before { content:''; position:absolute; top:-50%; left:-50%; width:200%; height:200%; background:radial-gradient(circle,rgba(255,255,255,0.08) 0%,transparent 60%); animation:ctaShine 8s ease infinite; }
@keyframes ctaShine { 0%{transform:translate(-30%,-30%) rotate(0deg);} 100%{transform:translate(30%,30%) rotate(180deg);} }
.cta-banner h2 { color:#fff; position:relative; z-index:1; font-size:2rem; font-weight:800; }
.cta-banner p { position:relative; z-index:1; opacity:0.9; margin-bottom:24px; }
.cta-banner .btn-primary { background:#fff; color:#E8785A; box-shadow:0 4px 20px rgba(0,0,0,0.15); position:relative; z-index:1; }
.cta-banner .btn-primary:hover { background:#FFFAF5; box-shadow:0 8px 28px rgba(0,0,0,0.2); transform:translateY(-2px); }

/* 页脚 */
.site-footer { padding:56px 0 28px; background:#F5E6DC; color:#3D2C2C; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand { }
.footer-brand .logo { margin-bottom:12px; }
.footer-brand p { opacity:0.7; font-size:0.9rem; color:#6B5555; }
.footer-col h5 { font-weight:700; margin-bottom:14px; color:#3D2C2C; font-size:0.95rem; }
.footer-col a { display:block; text-decoration:none; color:#6B5555; font-size:0.9rem; padding:4px 0; transition:0.2s; }
.footer-col a:hover { color:#E8785A; }
.footer-bottom { border-top:1px solid #E8D5C8; margin-top:40px; padding-top:20px; text-align:center; font-size:0.85rem; color:#8B7575; }

/* 工具类 */
.text-accent { color:#E8785A; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.7; color:#6B5555; line-height:1.7; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* 响应式 */
@media (max-width: 768px) {
  .hero { grid-template-columns:1fr; gap:32px; min-height:auto; padding-top:100px; padding-bottom:40px; }
  .hero h1 { font-size:2.2rem; }
  .hero-image { order:-1; max-width:400px; margin:0 auto; }
  .feature-block { grid-template-columns:1fr; gap:32px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; gap:28px; }
  .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:rgba(255,250,245,0.98); padding:24px; border-bottom:1px solid #F0E0D8; box-shadow:0 8px 24px rgba(0,0,0,0.06); gap:16px; }
  .main-nav.open a { font-size:1rem; padding:8px 0; }
  .nav-cta { text-align:center; justify-content:center; }
  .section { padding:48px 0; }
  .section-title { font-size:1.6rem; }
}
@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; }
  .btn { width:100%; justify-content:center; }
  .cta-banner { padding:40px 16px; }
  .cta-banner h2 { font-size:1.5rem; }
  .stats-bar { gap:12px; }
  .stat-item { padding:20px 14px; }
  .stat-number { font-size:1.8rem; }
}