:root {
    --color-primary: #9f1239;
    --color-accent: #e11d48;
    --color-bg: #fafafa;
    --color-text: #3f0a1a;
    --color-light-bg: #fce7ef;
    --color-white: #ffffff;
    --shadow-heavy: 0 15px 30px rgba(159, 18, 57, 0.2), 0 8px 15px rgba(0,0,0,0.1);
    --shadow-light: 0 5px 15px rgba(159, 18, 57, 0.1);
    --radius-lg: 25px;
    --radius-md: 16px;
}

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

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.8;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 9999;
}

h1, h2, h3, h4 {
    font-weight: 800;
    line-height: 1.4;
    letter-spacing: -0.02em;
}

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

/* 滚动进度条 */
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    width: 0%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    z-index: 10000;
    transition: width 0.15s ease-out;
    border-radius: 0 4px 4px 0;
}

/* 导航 */
.navbar {
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    padding: 0.8rem 0;
    box-shadow: 0 4px 25px rgba(159, 18, 57, 0.1);
    transition: box-shadow 0.3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-heavy);
}

.navbar-brand {
    font-size: 1.9rem;
    font-weight: 900;
    color: var(--color-primary) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Inter', sans-serif;
    letter-spacing: -0.01em;
}

.navbar-brand i {
    font-size: 2rem;
    color: var(--color-accent);
}

.navbar-brand span {
    color: var(--color-accent);
}

.nav-link {
    font-weight: 600;
    color: var(--color-text) !important;
    margin: 0 0.2rem;
    padding: 0.5rem 1rem !important;
    border-radius: 50px;
    transition: background-color 0.3s, color 0.3s;
}

.nav-link:hover {
    background-color: var(--color-light-bg);
    color: var(--color-primary) !important;
}

.navbar-toggler {
    border: 2px solid var(--color-primary);
    border-radius: 10px;
    padding: 0.3rem 0.6rem;
}

.navbar-toggler:focus {
    box-shadow: none;
}

/* Hero 区块 */
.hero-section {
    padding: 5rem 0 6rem;
    background: linear-gradient(145deg, #fff7fa 0%, #fdf1f5 60%, var(--color-bg) 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: "";
    position: absolute;
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(225, 29, 72, 0.15) 0%, transparent 70%);
    top: -150px;
    right: -100px;
    border-radius: 50%;
    animation: float 8s infinite alternate ease-in-out;
}

.hero-section::after {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(159, 18, 57, 0.1) 0%, transparent 70%);
    bottom: -80px;
    left: -80px;
    border-radius: 50%;
    animation: float 10s infinite alternate-reverse ease-in-out;
}

@keyframes float {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-30px); }
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 50%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.2rem;
    font-family: 'Inter', sans-serif;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.2rem;
    font-weight: 400;
    color: #6b4a5c;
    max-width: 560px;
    margin-bottom: 2rem;
    line-height: 1.9;
}

.hero-img {
    position: relative;
    z-index: 2;
    transform: perspective(1000px) rotateY(-8deg) rotateX(3deg);
    transition: transform 0.5s ease;
    box-shadow: var(--shadow-heavy);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 5px solid var(--color-white);
}

.hero-img:hover {
    transform: perspective(1000px) rotateY(-2deg) rotateX(1deg) translateY(-5px);
}

.hero-img img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s ease;
}

.hero-img:hover img {
    transform: scale(1.03);
}

.hero-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 10;
    background: var(--color-accent);
    color: var(--color-white);
    font-weight: 700;
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    box-shadow: 0 6px 15px rgba(225, 29, 72, 0.4);
}

/* 区块标题 */
.section-title {
    font-size: 2.2rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    color: var(--color-primary);
    font-family: 'Inter', sans-serif;
    letter-spacing: -0.01em;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 4px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #8a6f7c;
    margin-bottom: 3rem;
    font-weight: 400;
}

/* 通用区块 */
.section-padding {
    padding: 5rem 0;
}

.bg-soft {
    background-color: var(--color-light-bg);
}

/* 使用说明 */
.steps-wrapper {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-light);
    border-left: 5px solid var(--color-accent);
}

.step-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.8rem;
    align-items: flex-start;
}

.step-item:last-child {
    margin-bottom: 0;
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(145deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
    font-weight: 800;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(225, 29, 72, 0.3);
    flex-shrink: 0;
}

.step-content h4 {
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
    font-size: 1.2rem;
}

.step-content p {
    color: #5d3a4d;
    margin-bottom: 0;
}

/* 特色对比表格 */
.feature-table {
    width: 100%;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-heavy);
}

.feature-table .table-header {
    background: linear-gradient(145deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
    font-weight: 700;
    font-size: 1.1rem;
    padding: 1.2rem 1.5rem;
    display: grid;
    grid-template-columns: 1fr 2fr 2fr;
}

.feature-table .table-row {
    display: grid;
    grid-template-columns: 1fr 2fr 2fr;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #f3e2e8;
    align-items: center;
    transition: background-color 0.3s;
}

.feature-table .table-row:last-child {
    border-bottom: none;
}

.feature-table .table-row:hover {
    background-color: var(--color-light-bg);
}

.feature-label {
    font-weight: 700;
    color: var(--color-primary);
}

.feature-icon {
    color: var(--color-accent);
    font-size: 1.2rem;
    margin-right: 0.5rem;
}

/* 特色网格 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-light);
    border: 1px solid #f3e2e8;
    transition: transform 0.4s, box-shadow 0.4s;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
}

.feature-card .icon-wrapper {
    width: 60px;
    height: 60px;
    background: var(--color-light-bg);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    border: 2px solid var(--color-accent);
}

.feature-card .icon-wrapper i {
    font-size: 1.8rem;
    color: var(--color-accent);
}

.feature-card h4 {
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-primary);
    font-size: 1.3rem;
}

.feature-card p {
    color: #6b4a5c;
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* 长文区域 */
.long-article {
    background: linear-gradient(145deg, var(--color-white) 0%, #fff4f7 100%);
    border-radius: var(--radius-lg);
    padding: 3.5rem;
    box-shadow: var(--shadow-light);
    border: 1px solid #f3e2e8;
    position: relative;
}

.long-article::before {
    content: "\201C";
    font-size: 8rem;
    color: var(--color-accent);
    position: absolute;
    top: 10px;
    left: 30px;
    opacity: 0.15;
    font-family: Georgia, serif;
    line-height: 1;
}

.long-article h3 {
    color: var(--color-primary);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.long-article p {
    margin-bottom: 1.5rem;
    text-align: justify;
}

.long-article .highlight-text {
    background: linear-gradient(145deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
    padding: 0.2rem 0.8rem;
    border-radius: 6px;
    font-weight: 600;
}

/* FAQ */
.faq-section .accordion-item {
    border: none;
    border-radius: var(--radius-md) !important;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-light);
    overflow: hidden;
    background: var(--color-white);
}

.faq-section .accordion-button {
    font-weight: 700;
    color: var(--color-primary);
    padding: 1.2rem 1.5rem;
    border-radius: var(--radius-md) !important;
    font-size: 1.05rem;
    background: var(--color-white);
    box-shadow: none;
}

.faq-section .accordion-button:not(.collapsed) {
    background: var(--color-light-bg);
    color: var(--color-accent);
    box-shadow: none;
}

.faq-section .accordion-button:focus {
    box-shadow: none;
    border-color: var(--color-accent);
}

.faq-section .accordion-body {
    padding: 1.2rem 1.5rem;
    color: #6b4a5c;
    line-height: 1.9;
}

/* CTA */
.cta-section {
    background: linear-gradient(145deg, var(--color-primary) 0%, var(--color-accent) 100%);
    border-radius: var(--radius-lg);
    padding: 4rem 2rem;
    text-align: center;
    color: var(--color-white);
    box-shadow: var(--shadow-heavy);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: "";
    position: absolute;
    width: 200px;
    height: 200px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    top: -60px;
    right: -60px;
}

.cta-section h2 {
    font-weight: 900;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-section p {
    opacity: 0.9;
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.cta-btn {
    background: var(--color-white);
    color: var(--color-primary) !important;
    font-weight: 800;
    padding: 0.9rem 2.5rem;
    border-radius: 50px;
    font-size: 1.1rem;
    border: none;
    transition: transform 0.3s, box-shadow 0.3s;
    display: inline-block;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.3);
}

/* 友情链接 */
.friend-links {
    padding: 3rem 0;
    border-top: 1px solid #f3e2e8;
}

.friend-links h6 {
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

/* 页脚 */
.footer {
    background: linear-gradient(145deg, var(--color-primary) 0%, #4a081b 100%);
    color: var(--color-white);
    padding: 3rem 0 2rem;
}

.footer a {
    color: rgba(255,255,255,0.85);
    transition: color 0.3s;
}

.footer a:hover {
    color: var(--color-white);
    text-decoration: underline;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    text-decoration: none;
}

/* 图片hover遮罩效果 */
.img-hover-wrap {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-light);
}

.img-hover-wrap img {
    width: 100%;
    display: block;
    transition: transform 0.5s ease;
}

.img-hover-wrap:hover img {
    transform: scale(1.1);
}

.img-hover-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(159, 18, 57, 0.9), transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
    color: var(--color-white);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.img-hover-wrap:hover .img-hover-overlay {
    opacity: 1;
}

/* 数字滚动 */
.counter-value {
    font-size: 3rem;
    font-weight: 900;
    color: var(--color-primary);
    display: inline-block;
    margin-right: 0.3rem;
}

.counter-suffix {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-accent);
}

/* 装饰元素 */
.deco-element {
    position: absolute;
    width: 30px;
    height: 30px;
    border: 3px solid var(--color-accent);
    border-radius: 8px;
    opacity: 0.2;
    animation: spin 10s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 响应式 */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-img {
        margin-top: 3rem;
    }
    .section-title {
        font-size: 1.8rem;
    }
    .long-article {
        padding: 2rem;
    }
}

@media (max-width: 768px) {
    .steps-wrapper {
        padding: 1.5rem;
    }
    .feature-table .table-header {
        grid-template-columns: 1fr 1.5fr 1.5fr;
        font-size: 0.9rem;
        padding: 1rem;
    }
    .feature-table .table-row {
        grid-template-columns: 1fr 1.5fr 1.5fr;
        padding: 0.8rem 1rem;
        font-size: 0.85rem;
    }
    .cta-section {
        padding: 3rem 1.5rem;
    }
    .cta-section h2 {
        font-size: 1.8rem;
    }
    .navbar-brand {
        font-size: 1.5rem;
    }
}

/* 随机图片占位 */
.random-img {
    background: linear-gradient(145deg, #fce7ef, #fff0f5);
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* --- 子页面追加 --- */
/* 本页专属样式 */
        .about-hero {
            background: linear-gradient(135deg, var(--color-light-bg) 0%, var(--color-white) 100%);
            padding: 80px 0 60px;
            position: relative;
            overflow: hidden;
        }
.about-hero::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(225, 29, 72, 0.08) 0%, transparent 70%);
            border-radius: 50%;
        }
.about-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-primary);
            color: var(--color-white);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            box-shadow: var(--shadow-light);
        }
.about-title {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--color-primary);
            line-height: 1.2;
            margin-bottom: 20px;
        }
.about-subtitle {
            font-size: 1.2rem;
            color: var(--color-text);
            opacity: 0.8;
            max-width: 600px;
            line-height: 1.7;
        }
.about-content-section {
            padding: 60px 0;
        }
.about-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-light);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
            border: 1px solid rgba(159, 18, 57, 0.08);
        }
.about-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-heavy);
        }
.about-card-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
            background: var(--color-light-bg);
            color: var(--color-primary);
        }
.about-card-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 15px;
        }
.about-card-text {
            color: var(--color-text);
            line-height: 1.8;
            font-size: 0.95rem;
            opacity: 0.85;
        }
.story-section {
            background: var(--color-light-bg);
            border-radius: var(--radius-lg);
            padding: 50px;
            margin: 40px 0;
        }
.story-title {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 20px;
        }
.story-text {
            line-height: 2;
            color: var(--color-text);
            font-size: 1rem;
        }
.story-text p {
            margin-bottom: 18px;
        }
.feature-list-about {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }
.feature-list-about li {
            padding: 8px 0;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--color-text);
            font-size: 0.95rem;
        }
.feature-list-about li i {
            color: var(--color-accent);
            margin-top: 4px;
            font-size: 0.9rem;
        }
.stats-wrapper {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 30px;
            margin: 40px 0;
        }
.stat-item {
            text-align: center;
        }
.stat-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--color-primary);
            display: block;
        }
.stat-label {
            font-size: 0.9rem;
            color: var(--color-text);
            opacity: 0.7;
            margin-top: 5px;
        }
.about-title {
                font-size: 2rem;
            }
.about-hero {
                padding: 50px 0 40px;
            }
.about-card {
                padding: 25px;
                margin-bottom: 20px;
            }
.story-section {
                padding: 30px 20px;
            }
.stats-wrapper {
                gap: 20px;
            }
.stat-number {
                font-size: 2rem;
            }

/* --- 子页面追加 --- */
/* 本页专属样式 */
        .legal-section {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            margin-bottom: 2rem;
            box-shadow: var(--shadow-light);
            border: 1px solid rgba(159, 18, 57, 0.08);
        }
.legal-section h2 {
            color: var(--color-primary);
            font-weight: 800;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
.legal-section h2 i {
            color: var(--color-accent);
            font-size: 1.3rem;
        }
.legal-section p {
            color: var(--color-text);
            line-height: 1.8;
            margin-bottom: 1rem;
            font-size: 0.95rem;
        }
.legal-section ul {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
.legal-section ul li {
            color: var(--color-text);
            line-height: 1.8;
            font-size: 0.95rem;
            margin-bottom: 0.5rem;
            position: relative;
        }
.legal-section ul li::marker {
            color: var(--color-accent);
        }
.legal-highlight {
            background: var(--color-light-bg);
            border-left: 4px solid var(--color-accent);
            padding: 1.2rem 1.5rem;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 1.5rem 0;
        }
.legal-highlight p {
            margin-bottom: 0;
            font-weight: 500;
        }
.last-updated {
            display: inline-block;
            background: var(--color-light-bg);
            color: var(--color-primary);
            padding: 0.4rem 1rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 2rem;
        }
.legal-table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
.legal-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
        }
.legal-table th {
            background: var(--color-light-bg);
            color: var(--color-primary);
            font-weight: 700;
            padding: 0.9rem 1.2rem;
            text-align: left;
            border-bottom: 2px solid var(--color-accent);
        }
.legal-table td {
            padding: 0.8rem 1.2rem;
            border-bottom: 1px solid rgba(159, 18, 57, 0.1);
            color: var(--color-text);
            line-height: 1.6;
        }
.legal-table tr:hover td {
            background: rgba(252, 231, 239, 0.3);
        }
.legal-section {
                padding: 1.5rem;
            }
.legal-section h2 {
                font-size: 1.25rem;
            }

/* --- 子页面追加 --- */
/* 本页专属样式 */
        .privacy-section {
            max-width: 900px;
            margin: 0 auto;
        }
.privacy-section h2 {
            color: var(--color-primary);
            font-size: 1.5rem;
            font-weight: 700;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--color-light-bg);
        }
.privacy-section h3 {
            color: var(--color-accent);
            font-size: 1.15rem;
            font-weight: 600;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
        }
.privacy-section p {
            color: var(--color-text);
            line-height: 1.8;
            font-size: 0.95rem;
            margin-bottom: 1rem;
        }
.privacy-section ul {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
            color: var(--color-text);
        }
.privacy-section li {
            margin-bottom: 0.5rem;
            line-height: 1.7;
            font-size: 0.95rem;
        }
.privacy-section strong {
            color: var(--color-primary);
        }
.privacy-updated {
            background: var(--color-light-bg);
            padding: 0.8rem 1.5rem;
            border-radius: var(--radius-md);
            display: inline-block;
            font-size: 0.85rem;
            color: var(--color-primary);
            font-weight: 600;
            margin-bottom: 2rem;
        }
.privacy-contact-box {
            background: var(--color-light-bg);
            padding: 1.5rem 2rem;
            border-radius: var(--radius-md);
            margin-top: 2.5rem;
            border-left: 4px solid var(--color-accent);
        }
.privacy-contact-box p {
            margin-bottom: 0.5rem;
            font-size: 0.9rem;
        }

/* --- 子页面追加 --- */
/* 排行榜页面专属样式 */
        .ranking-header {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
            padding: 80px 0 60px;
            position: relative;
            overflow: hidden;
        }
.ranking-header::after {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255,255,255,0.1);
        }
.ranking-header h1 {
            color: var(--color-white);
            font-weight: 900;
            font-size: 2.8rem;
            margin-bottom: 15px;
            position: relative;
            z-index: 1;
        }
.ranking-header p {
            color: rgba(255,255,255,0.9);
            font-size: 1.1rem;
            max-width: 700px;
            position: relative;
            z-index: 1;
        }
.ranking-tabs {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 15px;
            margin-top: -30px;
            position: relative;
            z-index: 2;
            box-shadow: var(--shadow-light);
        }
.ranking-tabs .btn {
            border: none;
            padding: 10px 25px;
            border-radius: var(--radius-md);
            font-weight: 600;
            color: var(--color-text);
            background: transparent;
            transition: all 0.3s ease;
        }
.ranking-tabs .btn:hover {
            background: var(--color-light-bg);
            color: var(--color-primary);
        }
.ranking-tabs .btn.active {
            background: var(--color-primary);
            color: var(--color-white);
        }
.ranking-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 20px;
            margin-bottom: 20px;
            box-shadow: var(--shadow-light);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            align-items: center;
            gap: 20px;
        }
.ranking-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-heavy);
        }
.ranking-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--color-primary);
            min-width: 70px;
            text-align: center;
        }
.ranking-number.top-1 {
            color: #ffd700;
            text-shadow: 0 2px 10px rgba(255,215,0,0.3);
        }
.ranking-number.top-2 {
            color: #c0c0c0;
        }
.ranking-number.top-3 {
            color: #cd7f32;
        }
.ranking-thumb {
            width: 80px;
            height: 110px;
            border-radius: 10px;
            object-fit: cover;
            background: var(--color-light-bg);
            flex-shrink: 0;
        }
.ranking-info {
            flex: 1;
        }
.ranking-info h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 5px;
        }
.ranking-info .author {
            font-size: 0.9rem;
            color: #666;
            margin-bottom: 5px;
        }
.ranking-info .stats {
            display: flex;
            gap: 20px;
            font-size: 0.85rem;
            color: #666;
        }
.ranking-info .stats i {
            color: var(--color-accent);
            margin-right: 4px;
        }
.ranking-badge {
            background: var(--color-light-bg);
            color: var(--color-primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            display: inline-block;
        }
.update-note {
            background: var(--color-light-bg);
            border-radius: var(--radius-md);
            padding: 20px;
            margin: 30px 0;
            border-left: 4px solid var(--color-accent);
        }
.update-note h4 {
            color: var(--color-primary);
            font-weight: 700;
            margin-bottom: 10px;
        }
.update-note p {
            color: var(--color-text);
            margin-bottom: 0;
        }
.trending-tags {
            margin-top: 30px;
        }
.trending-tags .tag {
            display: inline-block;
            background: var(--color-white);
            border: 2px solid var(--color-light-bg);
            color: var(--color-text);
            padding: 8px 20px;
            border-radius: 25px;
            font-size: 0.9rem;
            margin: 0 8px 8px 0;
            transition: all 0.3s ease;
            cursor: pointer;
        }
.trending-tags .tag:hover {
            background: var(--color-primary);
            color: var(--color-white);
            border-color: var(--color-primary);
        }
.ranking-header h1 {
                font-size: 2rem;
            }
.ranking-item {
                flex-direction: column;
                text-align: center;
                padding: 15px;
            }
.ranking-number {
                font-size: 2rem;
                min-width: 50px;
            }
.ranking-thumb {
                width: 100px;
                height: 140px;
            }
.ranking-info .stats {
                flex-direction: column;
                gap: 8px;
            }

/* --- 子页面追加 --- */
.guide-hero {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
            padding: 80px 0 60px;
            position: relative;
            overflow: hidden;
        }
.guide-hero .hero-content {
            max-width: 720px;
            margin: 0 auto;
            text-align: center;
            color: var(--color-white);
        }
.guide-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }
.guide-hero p {
            font-size: 1.15rem;
            opacity: 0.92;
            line-height: 1.7;
        }
.guide-badge {
            display: inline-block;
            background: rgba(255,255,255,0.18);
            border: 1px solid rgba(255,255,255,0.35);
            color: var(--color-white);
            padding: 5px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
.guide-section {
            background: var(--color-bg);
        }
.guide-section .card-custom {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 30px;
            box-shadow: var(--shadow-light);
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid rgba(159,18,57,0.06);
        }
.guide-section .card-custom:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-heavy);
        }
.guide-section .card-custom h3 {
            color: var(--color-primary);
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
.guide-section .card-custom h3 i {
            color: var(--color-accent);
            font-size: 1.2rem;
        }
.guide-section .card-custom p, .guide-section .card-custom li {
            color: var(--color-text);
            line-height: 1.75;
            font-size: 0.95rem;
        }
.guide-section .card-custom ul {
            padding-left: 1.2rem;
            margin-bottom: 0;
        }
.guide-section .card-custom li {
            margin-bottom: 6px;
        }
.guide-tip-box {
            background: var(--color-light-bg);
            border-left: 4px solid var(--color-accent);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 18px 24px;
            margin: 24px 0;
        }
.guide-tip-box p {
            margin: 0;
            color: var(--color-text);
            font-size: 0.95rem;
        }
.guide-tip-box strong {
            color: var(--color-primary);
        }
.guide-steps-list {
            counter-reset: step-counter;
            list-style: none;
            padding-left: 0;
        }
.guide-steps-list li {
            counter-increment: step-counter;
            position: relative;
            padding-left: 55px;
            margin-bottom: 18px;
            font-size: 0.98rem;
            line-height: 1.7;
            color: var(--color-text);
        }
.guide-steps-list li::before {
            content: counter(step-counter);
            position: absolute;
            left: 0;
            top: 0;
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            color: var(--color-white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.95rem;
        }
.faq-item-custom {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            margin-bottom: 16px;
            box-shadow: var(--shadow-light);
            border: 1px solid rgba(159,18,57,0.06);
        }
.faq-item-custom h4 {
            color: var(--color-primary);
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
.faq-item-custom h4 i {
            color: var(--color-accent);
            font-size: 0.95rem;
        }
.faq-item-custom p {
            color: var(--color-text);
            line-height: 1.7;
            font-size: 0.95rem;
            margin-bottom: 0;
        }
.rank-badge {
            display: inline-block;
            background: var(--color-light-bg);
            color: var(--color-primary);
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            margin-right: 8px;
        }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-header { background:transparent !important; }