/* 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:#faf8f5; color:#1a1a2e; line-height:1.6; -webkit-font-smoothing:antialiased; }

/* 核心布局 */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; position:relative; }
.section:nth-child(even) { background:#f3f0f9; }
.section:nth-child(even)::before { content:''; position:absolute; top:-40px; right:60px; width:180px; height:180px; border-radius:50%; background:radial-gradient(circle, rgba(124,58,237,0.06) 0%, transparent 70%); pointer-events:none; z-index:0; }

/* 导航 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(250,248,245,0.92); backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px); border-bottom:1px solid #e8e0f0; transition:box-shadow 0.3s; }
.site-header.scrolled { box-shadow:0 2px 24px rgba(124,58,237,0.08); }
.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:1.25rem; text-decoration:none; color:#2d1b69; letter-spacing:-0.5px; }
.logo-icon { width:38px; height:38px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:1.1rem; background:linear-gradient(135deg, #7c3aed, #a78bfa); color:#fff; box-shadow:0 2px 12px rgba(124,58,237,0.25); }
.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:#4a3f6b; transition:0.2s; position:relative; }
.main-nav a:hover { color:#7c3aed; }
.main-nav a::after { content:''; position:absolute; bottom:-4px; left:0; width:0; height:2px; background:#06d6a0; border-radius:1px; transition:width 0.25s ease; }
.main-nav a:hover::after { width:100%; }
.nav-cta { padding:10px 22px; border-radius:10px; color:#fff!important; font-weight:700; background:linear-gradient(135deg, #7c3aed, #5b21b6); box-shadow:0 3px 14px rgba(124,58,237,0.3); transition:0.25s!important; }
.nav-cta:hover { transform:translateY(-2px); box-shadow:0 6px 22px rgba(124,58,237,0.4); }
.nav-cta::after { display:none!important; }
.menu-toggle { display:none; background:none; border:none; cursor:pointer; padding:8px; color:#2d1b69; font-size:1.5rem; }

/* 首页Hero */
.hero { min-height:75vh; display:flex; align-items:center; position:relative; overflow:hidden; }
.hero::before { content:''; position:absolute; top:-120px; right:-80px; width:500px; height:500px; border-radius:50%; background:radial-gradient(circle, rgba(6,214,160,0.08) 0%, transparent 65%); pointer-events:none; }
.hero::after { content:''; position:absolute; bottom:-60px; left:-40px; width:300px; height:300px; border-radius:50%; background:radial-gradient(circle, rgba(124,58,237,0.07) 0%, transparent 65%); 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 16px; border-radius:20px; margin-bottom:18px; background:#ede4fe; color:#7c3aed; letter-spacing:1.5px; text-transform:uppercase; }
.hero h1 { font-size:3.2rem; line-height:1.15; margin-bottom:22px; color:#2d1b69; font-weight:900; letter-spacing:-1px; }
.hero h1 span { background:linear-gradient(135deg, #7c3aed, #06d6a0); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.hero p { font-size:1.15rem; opacity:0.75; max-width:560px; margin-bottom:36px; color:#4a3f6b; line-height:1.7; }
.hero-buttons { display:flex; gap:16px; flex-wrap:wrap; }
.hero-image { border-radius:16px; overflow:hidden; position:relative; box-shadow:0 8px 40px rgba(124,58,237,0.12); }
.hero-image::after { content:''; position:absolute; inset:0; border-radius:16px; border:2px solid transparent; background:linear-gradient(135deg, rgba(124,58,237,0.3), rgba(6,214,160,0.3)) border-box; -webkit-mask:linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0); -webkit-mask-composite:xor; mask-composite:exclude; pointer-events:none; }
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 */
.btn { display:inline-flex; align-items:center; gap:8px; padding:13px 30px; border-radius:10px; font-weight:700; cursor:pointer; border:none; text-decoration:none; transition:0.25s; font-size:0.95rem; letter-spacing:0.2px; }
.btn-primary { color:#fff; background:linear-gradient(135deg, #7c3aed, #5b21b6); box-shadow:0 4px 16px rgba(124,58,237,0.3); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 8px 28px rgba(124,58,237,0.4); }
.btn-outline { background:transparent; border:2px solid #7c3aed; color:#7c3aed; }
.btn-outline:hover { background:#7c3aed; color:#fff; box-shadow:0 4px 16px rgba(124,58,237,0.25); }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.78rem; font-weight:700; letter-spacing:2.5px; margin-bottom:12px; color:#7c3aed; text-transform:uppercase; }
.section-title { font-size:2.2rem; margin-bottom:14px; color:#2d1b69; font-weight:800; letter-spacing:-0.5px; }
.section-desc { max-width:620px; opacity:0.7; margin-bottom:44px; color:#4a3f6b; font-size:1.05rem; 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:30px 26px; border:1.5px solid #e8e0f0; transition:0.3s; background:#fff; position:relative; overflow:hidden; cursor:pointer; }
.category-card::before { content:''; position:absolute; top:0; left:0; width:100%; height:3px; background:linear-gradient(90deg, #7c3aed, #06d6a0); transform:scaleX(0); transform-origin:left; transition:transform 0.35s ease; }
.category-card:hover::before { transform:scaleX(1); }
.category-card:hover { transform:translateY(-5px); box-shadow:0 8px 32px rgba(124,58,237,0.12); border-color:#c4b5e0; }
.card-icon { width:50px; height:50px; border-radius:12px; display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:1.4rem; background:#ede4fe; color:#7c3aed; transition:0.3s; }
.category-card:hover .card-icon { background:linear-gradient(135deg, #7c3aed, #a78bfa); color:#fff; box-shadow:0 4px 16px rgba(124,58,237,0.3); }
.card-link { font-weight:700; font-size:0.85rem; text-decoration:none; color:#7c3aed; display:inline-flex; align-items:center; gap:6px; transition:0.2s; }
.card-link:hover { color:#06d6a0; gap:10px; }

/* 特性块 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.feature-image { border-radius:14px; overflow:hidden; position:relative; box-shadow:0 6px 30px rgba(124,58,237,0.1); }
.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:#4a3f6b; font-size:0.95rem; }
.feature-list li::before { content:'✓'; font-weight:700; color:#06d6a0; font-size:1.1rem; background:#e6faf3; width:26px; height:26px; border-radius:50%; display:inline-flex; align-items:center; justify-content:center; flex-shrink:0; }

/* 数据条 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.stat-item { padding:30px 20px; border-radius:14px; border:1.5px solid #e8e0f0; background:#fff; transition:0.3s; position:relative; overflow:hidden; }
.stat-item:hover { border-color:#c4b5e0; box-shadow:0 6px 24px rgba(124,58,237,0.08); transform:translateY(-3px); }
.stat-item::after { content:''; position:absolute; bottom:0; left:20%; width:60%; height:2px; background:linear-gradient(90deg, transparent, #06d6a0, transparent); opacity:0; transition:opacity 0.3s; }
.stat-item:hover::after { opacity:1; }
.stat-number { font-size:2.4rem; font-weight:900; background:linear-gradient(135deg, #7c3aed, #5b21b6); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.stat-label { font-size:0.9rem; opacity:0.65; margin-top:8px; color:#4a3f6b; font-weight:500; }

/* 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:1.5px solid #e8e0f0; transition:0.3s; background:#fff; }
.content-wall-item:hover { transform:translateY(-5px); box-shadow:0 8px 32px rgba(124,58,237,0.1); border-color:#c4b5e0; }
.content-wall-item img { width:100%; height:200px; object-fit:cover; display:block; }
.content-wall-body { padding:22px 20px; }
.content-wall-body h3 { font-size:1.05rem; font-weight:700; color:#2d1b69; margin-bottom:8px; }
.content-wall-body p { font-size:0.9rem; color:#4a3f6b; opacity:0.7; line-height:1.5; }
.content-wall-body .card-link { margin-top:10px; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1.5px solid #e8e0f0; border-radius:12px; margin-bottom:10px; overflow:hidden; cursor:pointer; background:#fff; transition:0.25s; }
.faq-item:hover { border-color:#c4b5e0; }
.faq-item .faq-question { padding:18px 22px; font-weight:700; display:flex; justify-content:space-between; align-items:center; color:#2d1b69; font-size:1rem; }
.faq-item .faq-question::after { content:'+'; font-size:1.3rem; color:#7c3aed; transition:transform 0.3s; font-weight:400; }
.faq-item.open .faq-question::after { content:'−'; transform:rotate(180deg); color:#06d6a0; }
.faq-item .faq-answer { padding:0 22px 18px; display:none; opacity:0.7; color:#4a3f6b; line-height:1.7; font-size:0.93rem; }
.faq-item.open .faq-answer { display:block; animation:fadeIn 0.35s ease; }
.faq-item.open { border-color:#c4b5e0; box-shadow:0 4px 16px rgba(124,58,237,0.06); }
@keyframes fadeIn { from { opacity:0; transform:translateY(-8px); } to { opacity:0.7; transform:translateY(0); } }

/* CTA横幅 */
.cta-banner { padding:60px 24px; text-align:center; border-radius:16px; color:#fff; background:linear-gradient(135deg, #7c3aed, #4c1d95); position:relative; overflow:hidden; }
.cta-banner::before { content:''; position:absolute; top:-60px; right:-60px; width:250px; height:250px; border-radius:50%; background:rgba(255,255,255,0.06); pointer-events:none; }
.cta-banner::after { content:''; position:absolute; bottom:-40px; left:-40px; width:180px; height:180px; border-radius:50%; background:rgba(6,214,160,0.12); pointer-events:none; }
.cta-banner h2 { color:#fff; position:relative; z-index:1; font-size:2rem; }
.cta-banner p { position:relative; z-index:1; opacity:0.85; }
.cta-banner .btn-primary { background:#fff; color:#7c3aed; box-shadow:0 4px 20px rgba(0,0,0,0.15); position:relative; z-index:1; }
.cta-banner .btn-primary:hover { background:#f0edf5; box-shadow:0 6px 28px rgba(0,0,0,0.2); }

/* 页脚 */
.site-footer { padding:60px 0 28px; background:#e8e0f5; color:#2d1b69; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:44px; }
.footer-brand { }
.footer-brand p { opacity:0.7; margin-top:12px; font-size:0.9rem; line-height:1.6; }
.footer-col { }
.footer-col h4 { font-weight:700; margin-bottom:14px; font-size:0.95rem; color:#2d1b69; }
.footer-col ul { list-style:none; }
.footer-col ul li { margin-bottom:8px; }
.footer-col ul li a { text-decoration:none; color:#4a3f6b; font-size:0.9rem; opacity:0.75; transition:0.2s; }
.footer-col ul li a:hover { color:#7c3aed; opacity:1; }
.footer-bottom { border-top:1px solid rgba(45,27,105,0.12); margin-top:44px; padding-top:22px; text-align:center; font-size:0.85rem; opacity:0.6; color:#4a3f6b; }

/* 工具类 */
.text-accent { color:#7c3aed; }
.text-center { text-align:center; }
.seo-description { max-width:620px; margin:0 auto 48px; opacity:0.7; color:#4a3f6b; line-height:1.7; font-size:0.95rem; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* 响应式 */
@media (max-width: 768px) {
  .feature-block { grid-template-columns:1fr; gap:36px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); gap:16px; }
  .footer-grid { grid-template-columns:1fr 1fr; gap:32px; }
  .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:#faf8f5; padding:24px; gap:18px; border-bottom:2px solid #e8e0f0; box-shadow:0 8px 24px rgba(124,58,237,0.06); }
  .main-nav.open a { font-size:1rem; }
  .hero h1 { font-size:2.2rem; }
  .hero p { font-size:1rem; }
  .section-title { font-size:1.7rem; }
  .cta-banner h2 { font-size:1.5rem; }
}
@media (max-width: 480px) {
  .cards-grid,.content-wall,.stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; gap:28px; }
  .hero-buttons { flex-direction:column; align-items:flex-start; }
  .hero h1 { font-size:1.8rem; }
  .section { padding:50px 0; }
  .hero { min-height:60vh; }
  .section-title { font-size:1.5rem; }
  .stat-number { font-size:1.8rem; }
}