/* 基础重置 */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { 
    font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif; 
    overflow-x:hidden;
    background: #FFFBF7;
    color: #2D2D2D;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
::selection { background:#FF7E6B; color:#FFF; }
h1, h2, h3, h4 { line-height:1.2; color:#2D2D2D; }
img { max-width:100%; display:block; }

/* 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: linear-gradient(180deg, #F0FAF7 0%, #E8F5F0 100%); }

/* 导航 */
.site-header { 
    position:fixed; 
    top:0; left:0; width:100%; 
    z-index:1000; 
    background: rgba(255,253,250,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,126,107,0.12);
    box-shadow: 0 4px 30px rgba(255,126,107,0.06);
}
.header-inner { 
    display:flex; align-items:center; justify-content:space-between; 
    height:72px; 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:#2D2D2D;
    letter-spacing:-0.5px;
}
.logo-icon { 
    width:40px; height:40px; border-radius:14px; 
    display:flex; align-items:center; justify-content:center; 
    font-size:1.1rem; 
    background: linear-gradient(135deg, #FF7E6B, #FFC94D); 
    color:#fff; 
    box-shadow: 0 4px 16px rgba(255,126,107,0.35);
}
.main-nav { display:flex; align-items:center; gap:32px; list-style:none; }
.main-nav a { 
    text-decoration:none; font-size:0.9rem; font-weight:600; 
    transition:0.3s; color:#2D2D2D; 
    position:relative;
}
.main-nav a::after { 
    content:''; position:absolute; bottom:-4px; left:0; 
    width:0; height:2px; background:linear-gradient(90deg, #FF7E6B, #FFC94D); 
    transition:width 0.3s; border-radius:2px;
}
.main-nav a:hover::after { width:100%; }
.main-nav a:hover { color:#FF7E6B; }
.nav-cta { 
    padding:8px 22px; border-radius:50px; 
    color:#fff!important; font-weight:700; 
    background: linear-gradient(135deg, #FF7E6B, #FF9A7E);
    box-shadow: 0 4px 16px rgba(255,126,107,0.3);
    transition: 0.3s;
}
.nav-cta::after { display:none; }
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,126,107,0.4); }
.menu-toggle { 
    display:none; 
    width:44px; height:44px; border-radius:50%; 
    border:none; background: rgba(255,126,107,0.1); 
    cursor:pointer; position:relative;
}
.menu-toggle::before { 
    content:''; width:18px; height:2px; background:#2D2D2D; 
    position:absolute; top:15px; left:13px; 
    box-shadow: 0 6px 0 #2D2D2D, 0 12px 0 #2D2D2D;
    border-radius:2px;
}

/* Hero */
.hero { 
    min-height: 80vh; 
    display:flex; align-items:center; justify-content:center; 
    gap: 64px; 
    position: relative;
    padding: 140px 24px 80px;
    background: linear-gradient(120deg, #FFF0EB 0%, #FFF5F0 40%, #FFFBF7 100%);
    border-radius: 0 0 48px 48px;
    overflow: hidden;
}
.hero::before {
    content:''; position:absolute; width:320px; height:320px; 
    border-radius:50%; 
    background: radial-gradient(circle, rgba(255,126,107,0.08), transparent 70%);
    top: -80px; right: 8%; z-index:0;
}
.hero::after {
    content:''; position:absolute; width:220px; height:220px; 
    border-radius:50%; 
    background: radial-gradient(circle, rgba(62,201,167,0.1), transparent 70%);
    bottom: 5%; left: 3%; z-index:0;
}
.hero-content { max-width:620px; position:relative; z-index:2; flex: 0 1 620px; }
.hero-eyebrow { 
    display:inline-block; font-size:0.85rem; font-weight:700; 
    padding:6px 18px; border-radius:40px; margin-bottom:20px; 
    background: linear-gradient(135deg, #FF7E6B, #FFC94D); 
    color:#fff; 
    box-shadow: 0 4px 16px rgba(255,126,107,0.25);
    letter-spacing: 0.5px;
}
.hero h1 { 
    font-size: 3.5rem; font-weight:900; 
    margin-bottom:20px; letter-spacing:-2px; 
    line-height:1.15;
}
.hero p { 
    font-size: 1.1rem; opacity:0.65; 
    max-width:560px; margin-bottom:32px; 
    line-height:1.7;
}
.hero-buttons { display:flex; gap:14px; }
.hero-image { 
    border-radius: 28px; overflow:hidden; 
    flex: 0 1 460px; min-width: 0;
    box-shadow: 0 24px 60px rgba(255,126,107,0.18);
    position:relative;
    background: linear-gradient(135deg, #FFE8E0, #FFF0EB);
    animation: float 6s ease-in-out infinite;
}
.hero-image img { width:100%; height:auto; }
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* 按钮 */
.btn { 
    display:inline-flex; align-items:center; gap:8px; 
    padding:14px 32px; border-radius:50px; 
    font-weight:700; cursor:pointer; border:none; 
    text-decoration:none; transition:0.3s; font-size:0.95rem;
    position:relative;
}
.btn-primary { 
    color:#fff; 
    background: linear-gradient(135deg, #FF7E6B, #FF9A7E);
    box-shadow: 0 6px 20px rgba(255,126,107,0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(255,126,107,0.4); }
.btn-outline { 
    background:transparent; border:2px solid #FF7E6B; 
    color:#FF7E6B; 
}
.btn-outline:hover { background: rgba(255,126,107,0.06); border-color: #FF6B5A; }

/* 标签/标题 */
.section-label { 
    display:inline-block; font-size:0.8rem; font-weight:700; 
    letter-spacing:3px; margin-bottom:12px; 
    color:#FF7E6B; text-transform:uppercase;
}
.section-title { font-size:2.4rem; margin-bottom:14px; font-weight:800; letter-spacing:-1px; }
.section-desc { max-width:600px; opacity:0.65; margin-bottom:40px; 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:20px; padding:32px 28px; 
    background:#FFF; border:0; 
    box-shadow: 0 4px 20px rgba(0,0,0,0.04); 
    transition:0.3s; position:relative; overflow:hidden;
}
.category-card::before {
    content:''; position:absolute; top:0; left:0; 
    width:100%; height:4px; 
    background: linear-gradient(90deg, #FF7E6B, #FFC94D, #3EC9A7);
    opacity:0; transition:0.3s;
}
.category-card:hover { 
    transform: translateY(-6px); 
    box-shadow: 0 16px 40px rgba(255,126,107,0.12); 
}
.category-card:hover::before { opacity:1; }
.card-icon { 
    width:52px; height:52px; border-radius:16px; 
    display:flex; align-items:center; justify-content:center; 
    margin-bottom:16px; font-size:1.4rem; 
    background: linear-gradient(135deg, #FFF0EB, #FFE8E0);
}
.category-card:nth-child(even) .card-icon {
    background: linear-gradient(135deg, #E6F7F2, #D0F0E8);
}
.card-link { 
    font-weight:700; font-size:0.85rem; 
    text-decoration:none; color:#FF7E6B; 
    display:inline-flex; align-items:center; gap:4px;
}
.card-link::after { content:'→'; transition: transform 0.3s; }
.card-link:hover::after { transform: translateX(4px); }

/* 特性块 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.feature-image { 
    border-radius:24px; overflow:hidden; 
    box-shadow: 0 24px 50px rgba(62,201,167,0.15);
}
.feature-image img { width:100%; height:auto; }
.feature-text { }
.feature-text h3 { font-size:1.8rem; margin-bottom:14px; font-weight:800; letter-spacing:-0.5px; }
.feature-text p { opacity:0.65; margin-bottom:20px; line-height:1.7; }
.feature-list { list-style:none; }
.feature-list li { 
    padding:8px 0; display:flex; align-items:center; gap:10px; 
    font-weight:500;
}
.feature-list li::before { 
    content:'✓'; font-weight:900; color:#3EC9A7; 
    background:#E6F7F2; width:24px; height:24px; 
    border-radius:50%; display:flex; align-items:center; 
    justify-content:center; font-size:12px;
    flex-shrink:0;
}

/* 数据条 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.stat-item { 
    padding:32px 24px; border-radius:20px; 
    border:0; background:#FFF; 
    box-shadow: 0 4px 20px rgba(0,0,0,0.04); 
    transition: 0.3s;
}
.stat-item:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(62,201,167,0.12); }
.stat-number { 
    font-size:2.6rem; font-weight:900; 
    background: linear-gradient(135deg, #FF7E6B, #FFC94D); 
    -webkit-background-clip:text; 
    background-clip:text;
    -webkit-text-fill-color:transparent; 
    line-height:1.2;
}
.stat-label { font-size:0.9rem; opacity:0.6; margin-top:6px; }

/* 内容墙 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:24px; }
.content-wall-item { 
    border-radius:20px; overflow:hidden; 
    border:0; background:#FFF; 
    box-shadow: 0 4px 20px rgba(0,0,0,0.04); 
    transition:0.3s;
    position:relative;
}
.content-wall-item:hover { transform: translateY(-6px) rotate(-1deg); box-shadow: 0 16px 40px rgba(255,126,107,0.12); }
.content-wall-item img { width:100%; height:200px; object-fit:cover; }
.content-wall-body { padding:20px; }
.content-wall-body h3 { font-size:1.1rem; font-weight:700; margin-bottom:4px; }
.content-wall-body p { font-size:0.85rem; opacity:0.6; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { 
    border:0; border-radius:16px; margin-bottom:12px; 
    overflow:hidden; cursor:pointer; background:#FFF; 
    box-shadow: 0 2px 12px rgba(0,0,0,0.04); 
    transition:0.3s;
}
.faq-item:hover { box-shadow: 0 6px 20px rgba(0,0,0,0.06); }
.faq-item.open { box-shadow: 0 12px 30px rgba(255,126,107,0.1); }
.faq-item .faq-question { 
    padding:20px 24px; font-weight:700; 
    display:flex; justify-content:space-between; align-items:center; 
    font-size:1rem;
}
.faq-item .faq-question::after { 
    content:'+'; font-size:1.5rem; font-weight:300; 
    color:#FF7E6B; transition: transform 0.3s;
}
.faq-item.open .faq-question::after { transform: rotate(45deg); }
.faq-item .faq-answer { 
    padding:0 24px 20px; display:none; 
    opacity:0.7; line-height:1.7;
}
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 */
.cta-banner { 
    padding:60px 24px; text-align:center; 
    border-radius:24px; color:#fff; 
    background: linear-gradient(135deg, #FF7E6B, #FF6B9A);
    box-shadow: 0 24px 60px rgba(255,126,107,0.3);
    position:relative; overflow:hidden;
}
.cta-banner::before {
    content:''; position:absolute; width:120px; height:120px; 
    background: rgba(255,255,255,0.1); border-radius:50%; 
    top:-30px; left:12%;
}
.cta-banner::after {
    content:''; position:absolute; width:80px; height:80px; 
    background: rgba(255,255,255,0.08); border-radius:50%; 
    bottom:-20px; right:18%;
}
.cta-banner h2 { color:#fff; font-size:2rem; margin-bottom:14px; position:relative; z-index:1; }
.cta-banner .btn-primary { background:#fff; color:#FF7E6B; box-shadow:0 6px 20px rgba(0,0,0,0.1); position:relative; z-index:1; }
.cta-banner .btn-primary:hover { transform: translateY(-2px); box-shadow:0 10px 30px rgba(0,0,0,0.15); }

/* 页脚 */
.site-footer { padding:56px 0 28px; background:#FFF5F0; border-top:2px solid #FFE8E0; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand { }
.footer-brand p { opacity:0.55; font-size:0.9rem; margin-top:8px; max-width:260px; }
.footer-col { }
.footer-col h4 { margin-bottom:16px; font-weight:700; font-size:1rem; }
.footer-col a { 
    display:block; padding:4px 0; 
    color:#6B6B6B; text-decoration:none; font-size:0.9rem; 
    transition: 0.2s;
}
.footer-col a:hover { color:#FF7E6B; }
.footer-bottom { border-top:1px solid rgba(45,45,45,0.06); margin-top:40px; padding-top:20px; text-align:center; font-size:0.85rem; color:#999; }

/* 工具类 */
.text-accent { color:#FF7E6B; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.65; line-height:1.7; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* 响应式 */
@media (max-width: 768px) {
    .hero { flex-direction:column; gap:32px; padding:110px 24px 60px; text-align:center; }
    .hero-content { max-width:100%; }
    .hero h1 { font-size:2.4rem; }
    .hero p { margin-left:auto; margin-right:auto; }
    .hero-buttons { justify-content:center; }
    .hero-image { max-width:100%; flex:0 1 auto; }
    .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:block; }
    .main-nav.open { 
        display:flex; flex-direction:column; 
        position:absolute; top:72px; left:0; 
        width:100%; background:#FFF; padding:24px; 
        gap:16px; box-shadow: 0 24px 40px rgba(0,0,0,0.08);
        border-bottom: 2px solid #FFE8E0;
        border-radius: 0 0 24px 24px;
    }
    .main-nav.open li { width:100%; }
    .main-nav.open a { display:block; padding:10px 0; }
    .main-nav.open .nav-cta { text-align:center; padding:12px 20px; }
    .section-title { font-size:2rem; }
}

@media (max-width: 480px) {
    .cards-grid, .content-wall, .stats-bar { grid-template-columns:1fr; }
    .footer-grid { grid-template-columns:1fr; gap:24px; }
    .hero-buttons { flex-direction:column; }
    .hero h1 { font-size:1.8rem; }
    .hero-image { border-radius:20px; }
    .btn { width:100%; justify-content:center; }
    .section { padding:56px 0; }
    .stat-number { font-size:2rem; }
}