```css
*, *::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: #FFFDF7;
    color: #1E1E2A;
    -webkit-font-smoothing: antialiased;
}

/* 核心布局 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
    position: relative;
}

.section:nth-child(even) {
    background: #F5F0EB;
}

/* 偶数节添加微妙纹理 */
.section:nth-child(even)::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 80% 20%, rgba(232, 69, 60, 0.03) 0%, transparent 60%),
                radial-gradient(ellipse at 20% 80%, rgba(26, 107, 90, 0.02) 0%, transparent 60%);
    pointer-events: none;
}

/* 导航 */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 253, 247, 0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(232, 69, 60, 0.08);
    transition: box-shadow 0.3s;
}

.site-header.scrolled {
    box-shadow: 0 2px 24px rgba(232, 69, 60, 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: 10px;
    font-weight: 800;
    font-size: 1.25rem;
    text-decoration: none;
    color: #1E1E2A;
    letter-spacing: -0.5px;
}

.logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    background: linear-gradient(135deg, #FF6B4A, #E8453C);
    color: #fff;
    font-weight: 700;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.main-nav a {
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    color: #4A4A5A;
    position: relative;
    transition: color 0.25s;
    padding: 4px 0;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #FF6B4A, #E8453C);
    border-radius: 1px;
    transition: width 0.3s cubic-bezier(0.25, 0.8, 0.25, 1.2);
}

.main-nav a:hover {
    color: #E8453C;
}

.main-nav a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 10px 22px !important;
    border-radius: 24px !important;
    color: #fff !important;
    font-weight: 700 !important;
    background: linear-gradient(135deg, #FF6B4A, #E8453C);
    box-shadow: 0 4px 14px rgba(232, 69, 60, 0.25);
    transition: transform 0.2s, box-shadow 0.3s !important;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(232, 69, 60, 0.35);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    gap: 5px;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2.5px;
    background: #1E1E2A;
    border-radius: 2px;
    transition: 0.3s;
}

/* Hero */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(170deg, #FFFDF7 0%, #FDF3EF 40%, #F5F0EB 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -180px;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 107, 74, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -100px;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(26, 107, 90, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-content {
    max-width: 720px;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: 24px;
    margin-bottom: 20px;
    background: rgba(232, 69, 60, 0.08);
    color: #E8453C;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.hero-eyebrow::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #E8453C;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.4); }
}

.hero h1 {
    font-size: 3.4rem;
    line-height: 1.15;
    margin-bottom: 20px;
    font-weight: 900;
    letter-spacing: -1.5px;
    color: #1E1E2A;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, #FF6B4A, #E8453C);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.15rem;
    opacity: 0.7;
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.7;
    color: #4A4A5A;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-image {
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 24px 60px rgba(232, 69, 60, 0.12), 0 8px 20px rgba(0, 0, 0, 0.04);
    transform: perspective(800px) rotateY(-3deg) rotateX(1deg);
    transition: transform 0.4s;
}

.hero-image:hover {
    transform: perspective(800px) rotateY(0deg) rotateX(0deg);
}

.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: 26px;
    font-weight: 700;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1.2);
    font-size: 0.95rem;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, #FF6B4A, #E8453C);
    color: #fff;
    box-shadow: 0 6px 22px rgba(232, 69, 60, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(232, 69, 60, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    background: transparent;
    border: 2px solid #1E1E2A;
    color: #1E1E2A;
}

.btn-outline:hover {
    background: #1E1E2A;
    color: #fff;
    transform: translateY(-2px);
}

/* 标签/标题 */
.section-label {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 2.5px;
    margin-bottom: 14px;
    color: #E8453C;
    text-transform: uppercase;
    position: relative;
    padding-left: 28px;
}

.section-label::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 2px;
    background: linear-gradient(90deg, #FF6B4A, #E8453C);
    border-radius: 1px;
}

.section-title {
    font-size: 2.4rem;
    margin-bottom: 16px;
    font-weight: 900;
    letter-spacing: -1px;
    color: #1E1E2A;
    line-height: 1.25;
}

.section-desc {
    max-width: 600px;
    opacity: 0.7;
    margin-bottom: 48px;
    font-size: 1.05rem;
    line-height: 1.7;
    color: #4A4A5A;
}

/* 卡片网格 */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
    gap: 24px;
}

.category-card {
    border-radius: 16px;
    padding: 32px 28px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1.2);
    background: #fff;
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #FF6B4A, #E8453C);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
}

.category-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(232, 69, 60, 0.1), 0 4px 12px rgba(0, 0, 0, 0.04);
    border-color: transparent;
}

.category-card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.4rem;
    background: linear-gradient(135deg, rgba(255, 107, 74, 0.12), rgba(232, 69, 60, 0.06));
    color: #E8453C;
}

.category-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1E1E2A;
}

.category-card p {
    font-size: 0.9rem;
    color: #4A4A5A;
    opacity: 0.75;
    line-height: 1.6;
    margin-bottom: 16px;
}

.card-link {
    font-weight: 700;
    font-size: 0.85rem;
    text-decoration: none;
    color: #E8453C;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.3s;
}

.card-link:hover {
    gap: 10px;
}

/* 特性块 */
.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.feature-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.06);
    position: relative;
}

.feature-image::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    border: 2px solid rgba(232, 69, 60, 0.1);
    pointer-events: none;
}

.feature-image img {
    width: 100%;
    height: auto;
    display: block;
}

.feature-text h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.feature-text p {
    opacity: 0.7;
    line-height: 1.7;
    margin-bottom: 24px;
    color: #4A4A5A;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    font-size: 0.95rem;
}

.feature-list li::before {
    content: '✓';
    font-weight: 800;
    color: #1A6B5A;
    background: rgba(26, 107, 90, 0.1);
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    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 20px;
    border-radius: 16px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    background: #fff;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(232, 69, 60, 0.08);
}

.stat-item::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    border-radius: 2px;
    background: linear-gradient(90deg, #FF6B4A, #E8453C);
}

.stat-number {
    font-size: 2.6rem;
    font-weight: 900;
    letter-spacing: -1.5px;
    background: linear-gradient(135deg, #FF6B4A, #E8453C);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.6;
    margin-top: 8px;
    font-weight: 500;
    color: #4A4A5A;
}

/* 内容墙 */
.content-wall {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 24px;
}

.content-wall-item {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1.2);
    background: #fff;
}

.content-wall-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
}

.content-wall-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.5s;
}

.content-wall-item:hover img {
    transform: scale(1.05);
}

.content-wall-body {
    padding: 22px;
}

.content-wall-body h4 {
    font-weight: 700;
    margin-bottom: 8px;
    font-size: 1.05rem;
}

.content-wall-body p {
    font-size: 0.88rem;
    opacity: 0.65;
    line-height: 1.6;
    color: #4A4A5A;
}

.content-wall-body .card-link {
    margin-top: 10px;
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 14px;
    margin-bottom: 10px;
    overflow: hidden;
    cursor: pointer;
    background: #fff;
    transition: all 0.3s;
}

.faq-item:hover {
    border-color: rgba(232, 69, 60, 0.2);
    box-shadow: 0 4px 16px rgba(232, 69, 60, 0.05);
}

.faq-item .faq-question {
    padding: 18px 22px;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.98rem;
    color: #1E1E2A;
}

.faq-item .faq-question::after {
    content: '+';
    font-size: 1.3rem;
    font-weight: 600;
    color: #E8453C;
    transition: transform 0.3s;
}

.faq-item.open .faq-question::after {
    content: '−';
    transform: rotate(180deg);
}

.faq-item .faq-answer {
    padding: 0 22px 18px;
    display: none;
    opacity: 0.7;
    line-height: 1.7;
    color: #4A4A5A;
    font-size: 0.9rem;
}

.faq-item.open .faq-answer {
    display: block;
}*/* 核心布局 */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; }
.section:nth-child(even) { background:#f8f9fa; }

/* 导航 — 固定顶部 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(255,255,255,0.95); backdrop-filter:blur(10px); border-bottom:1px solid #eee; }
.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:inherit; }
.logo-icon { width:36px; height:36px; border-radius:8px; display:flex; align-items:center; justify-content:center; font-size:1rem; }
.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; transition:0.2s; }
.nav-cta { padding:8px 20px; border-radius:8px; color:#fff!important; font-weight:600; }
.menu-toggle { display:none; }

/* 首页Hero */
.hero { min-height:70vh; display:flex; align-items:center; }
.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; }
.hero h1 { font-size:2.8rem; line-height:1.2; margin-bottom:20px; }
.hero p { font-size:1.1rem; opacity:0.7; max-width:560px; margin-bottom:32px; }
.hero-buttons { display:flex; gap:14px; }
.hero-image { border-radius:12px; overflow:hidden; }
.hero-image img { width:100%; height:auto; }

/* 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:0.2s; }
.btn-primary { color:#fff; }
.btn-outline { background:transparent; border:1.5px solid; }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.8rem; font-weight:600; letter-spacing:2px; margin-bottom:12px; }
.section-title { font-size:2rem; margin-bottom:14px; }
.section-desc { max-width:600px; opacity:0.7; margin-bottom:40px; }

/* 卡片网格 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:24px; }
.category-card { border-radius:12px; padding:28px; border:1px solid #eee; transition:0.2s; }
.category-card:hover { transform:translateY(-3px); box-shadow:0 4px 16px rgba(0,0,0,0.1); }
.card-icon { width:48px; height:48px; border-radius:10px; display:flex; align-items:center; justify-content:center; margin-bottom:16px; font-size:1.3rem; }
.card-link { font-weight:600; font-size:0.85rem; text-decoration:none; }

/* 特性块 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.feature-image { border-radius:12px; overflow:hidden; }
.feature-image img { width:100%; height:auto; }
.feature-text { }
.feature-list { list-style:none; }
.feature-list li { padding:6px 0; display:flex; align-items:center; gap:8px; }
.feature-list li::before { content:'✓'; font-weight:700; }

/* 数据条 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.stat-item { padding:24px; border-radius:12px; border:1px solid #eee; }
.stat-number { font-size:2.2rem; font-weight:800; }
.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:12px; overflow:hidden; border:1px solid #eee; transition:0.2s; }
.content-wall-item:hover { transform:translateY(-3px); box-shadow:0 4px 16px rgba(0,0,0,0.1); }
.content-wall-item img { width:100%; height:200px; object-fit:cover; }
.content-wall-body { padding:20px; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:1px solid #eee; border-radius:10px; margin-bottom:8px; overflow:hidden; cursor:pointer; }
.faq-item .faq-question { padding:16px 20px; font-weight:600; display:flex; justify-content:space-between; }
.faq-item .faq-answer { padding:0 20px 16px; display:none; opacity:0.7; }
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 */
.cta-banner { padding:56px 24px; text-align:center; border-radius:12px; color:#fff; }
.cta-banner h2 { color:#fff; }
.cta-banner .btn-primary { background:#fff; }

/* 页脚 */
.site-footer { padding:56px 0 28px; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand { }
.footer-col { }
.footer-bottom { border-top:1px solid rgba(255,255,255,0.1); margin-top:40px; padding-top:20px; text-align:center; font-size:0.85rem; }

/* 工具类 */
.text-accent { }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.7; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ⚠️ 响应式 */
@media (max-width: 768px) {
  .feature-block { grid-template-columns:1fr; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .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:#fff; padding:20px; }
}
@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; }
}