:root {
        --primary-orange: #ff7a00;
        --primary-dark: #1a1a1a;
        --bg-light: #fffaf5;
        --text-main: #333333;
        --text-muted: #666666;
        --border-color: #eeeeee;
        --radius-sm: 8px;
        --radius-md: 16px;
        --radius-lg: 24px;
        --transition: all 0.3s ease;
    }

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        color: var(--text-main);
        background-color: var(--bg-light);
        line-height: 1.6;
        overflow-x: hidden;
    }

    a {
        text-decoration: none;
        color: inherit;
    }

    img {
        max-width: 100%;
        display: block;
    }

    /* 顶部导航 */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background-color: rgba(255, 250, 245, 0.95);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid var(--border-color);
    }

    .header-inner {
        max-width: 1200px;
        margin: 0 auto;
        padding: 12px 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .brand {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 800;
        color: var(--primary-dark);
    }

    .brand img {
        height: 36px;
        width: auto;
        border-radius: var(--radius-sm);
    }

    .nav-links {
        display: flex;
        gap: 24px;
        overflow-x: auto;
        scrollbar-width: none;
    }
    
    .nav-links::-webkit-scrollbar {
        display: none;
    }

    .nav-links a {
        font-size: 15px;
        font-weight: 500;
        color: var(--text-muted);
        white-space: nowrap;
        transition: var(--transition);
    }

    .nav-links a:hover {
        color: var(--primary-orange);
    }

    /* 通用区块 */
    section {
        padding: 80px 20px;
    }

    .section-inner {
        max-width: 1200px;
        margin: 0 auto;
    }

    .section-title {
        font-size: 32px;
        font-weight: 800;
        margin-bottom: 16px;
        color: var(--primary-dark);
        text-align: center;
    }

    .section-desc {
        text-align: center;
        color: var(--text-muted);
        font-size: 16px;
        margin-bottom: 48px;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }

    /* 首屏 Hero */
    .hero {
        background: linear-gradient(135deg, #fff0e0 0%, #fffaf5 100%);
        padding: 100px 20px;
        text-align: center;
    }

    .hero h1 {
        font-size: 48px;
        font-weight: 900;
        color: var(--primary-dark);
        margin-bottom: 24px;
        line-height: 1.2;
    }

    .hero p {
        font-size: 18px;
        color: var(--text-muted);
        margin-bottom: 40px;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-img-wrapper {
        margin-top: 40px;
        position: relative;
        max-width: 800px;
        margin-left: auto;
        margin-right: auto;
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: 0 20px 40px rgba(255, 122, 0, 0.15);
    }

    .download-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background-color: var(--primary-orange);
        color: #ffffff;
        font-size: 18px;
        font-weight: 700;
        padding: 16px 48px;
        border-radius: 50px;
        transition: var(--transition);
        box-shadow: 0 10px 20px rgba(255, 122, 0, 0.3);
    }

    .download-btn:hover {
        transform: translateY(-3px);
        box-shadow: 0 15px 25px rgba(255, 122, 0, 0.4);
    }

    /* TOP 榜单 (深色模板) */
    .top-list-section {
        background-color: var(--primary-dark);
        color: #ffffff;
    }

    .top-list-section .section-title {
        color: #ffffff;
    }

    .top-list-section .section-desc {
        color: #aaaaaa;
    }

    .ranking-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
    }

    .ranking-card {
        background-color: #2a2a2a;
        border-radius: var(--radius-md);
        overflow: hidden;
        display: flex;
        flex-direction: column;
        transition: transform 0.3s ease;
    }

    .ranking-card:hover {
        transform: translateY(-5px);
    }

    .ranking-card img {
        width: 100%;
        aspect-ratio: 3/4;
        object-fit: cover;
    }

    .ranking-info {
        padding: 20px;
    }

    .ranking-info h3 {
        font-size: 20px;
        margin-bottom: 8px;
        color: #ffffff;
    }

    .ranking-info p {
        font-size: 14px;
        color: #aaaaaa;
    }

    /* 题材导览 (绿色模板) */
    .genre-section {
        background-color: #f2f9f5;
    }

    .genre-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 20px;
    }

    .genre-card {
        background: #ffffff;
        border-radius: var(--radius-md);
        padding: 24px;
        border: 1px solid #e0efe6;
        transition: var(--transition);
        text-align: center;
    }

    .genre-card:hover {
        border-color: #4caf50;
        box-shadow: 0 10px 20px rgba(76, 175, 80, 0.1);
    }

    .genre-card h3 {
        font-size: 20px;
        color: #2e7d32;
        margin-bottom: 12px;
    }

    .genre-card p {
        font-size: 14px;
        color: #555555;
    }

    /* 社区问答 (蓝色模板) */
    .qa-section {
        background-color: #f0f6ff;
    }

    .qa-list {
        max-width: 800px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 16px;
    }

    .qa-item {
        background: #ffffff;
        border-radius: var(--radius-sm);
        padding: 24px;
        border-left: 4px solid #2196f3;
    }

    .qa-item h3 {
        font-size: 18px;
        color: #1976d2;
        margin-bottom: 12px;
    }

    .qa-item p {
        font-size: 15px;
        color: #333333;
    }

    /* 权威认证 (紫色模板) */
    .cert-section {
        background-color: #f8f4fb;
    }

    .cert-content {
        display: flex;
        flex-wrap: wrap;
        gap: 40px;
        align-items: center;
        justify-content: center;
    }

    .cert-text {
        flex: 1;
        min-width: 300px;
    }

    .cert-text h2 {
        text-align: left;
        color: #6a1b9a;
    }

    .cert-text p {
        text-align: left;
        margin: 0 0 20px 0;
        color: #555555;
    }

    .cert-badge {
        display: flex;
        gap: 20px;
    }

    .cert-badge span {
        display: inline-block;
        padding: 10px 20px;
        background: #ffffff;
        border: 1px solid #ce93d8;
        color: #6a1b9a;
        border-radius: 50px;
        font-weight: 600;
        font-size: 14px;
    }

    /* 图文交错区块 (纯色模板) */
    .feature-section {
        background-color: #ffffff;
    }

    .feature-row {
        display: flex;
        align-items: center;
        gap: 40px;
        margin-bottom: 60px;
    }

    .feature-row:nth-child(even) {
        flex-direction: row-reverse;
    }

    .feature-img {
        flex: 1;
        border-radius: var(--radius-md);
        overflow: hidden;
        box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    }

    .feature-text {
        flex: 1;
    }

    .feature-text h2 {
        text-align: left;
        font-size: 28px;
        margin-bottom: 20px;
        color: var(--primary-dark);
    }

    .feature-text p {
        color: var(--text-muted);
        font-size: 16px;
        line-height: 1.8;
    }

    /* 截图墙 (暖色模板) */
    .gallery-section {
        background-color: #fff4e6;
    }

    .gallery-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 20px;
    }

    .gallery-item {
        border-radius: var(--radius-md);
        overflow: hidden;
        box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        transition: var(--transition);
    }

    .gallery-item:hover {
        transform: scale(1.02);
    }

    .gallery-item img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        aspect-ratio: 3/4;
    }

    /* 底部信息 */
    .site-footer {
        background-color: #1a1a1a;
        color: #666666;
        padding: 40px 20px;
        font-size: 13px;
        text-align: center;
        border-top: 1px solid #2a2a2a;
    }

    .footer-inner {
        max-width: 1200px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .site-footer a {
        color: #888888;
        transition: var(--transition);
    }

    .site-footer a:hover {
        color: #ffffff;
    }

    /* 响应式 */
    @media (max-width: 1024px) {
        .hero h1 { font-size: 40px; }
        .feature-row { flex-direction: column; }
        .feature-row:nth-child(even) { flex-direction: column; }
    }

    @media (max-width: 768px) {
        .hero h1 { font-size: 32px; }
        .hero p { font-size: 16px; }
        .section-title { font-size: 26px; }
        .nav-links { display: none; } /* 移动端隐藏导航，或可改为汉堡菜单，这里简化为隐藏 */
        .header-inner { justify-content: center; }
        .ranking-grid, .genre-grid, .gallery-grid { grid-template-columns: 1fr; }
    }