<style>
/* ===== 完整响应式样式表 ===== */
:root {
    --primary-blue: #1e3c72;
    --primary-purple: #2a5298;
    --gold: #ffd700;
    --pink: #f093fb;
    --cyan: #4facfe;
    --green: #43e97b;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 英雄区域 */
.hero-section-fans {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: #fff;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-content {
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.2;
}

.highlight {
    color: var(--gold);
}

.hero-desc {
    font-size: 1.3rem;
    opacity: 0.95;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 40px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    text-decoration: none;
    transition: transform 0.3s;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.btn-gold {
    background: var(--gold);
    color: #1a1a2e;
}

.btn-white {
    background: #fff;
    color: var(--primary-blue);
}

.hero-tags {
    margin-top: 24px;
    font-size: 0.95rem;
    opacity: 0.85;
}

/* 数据看板 */
.stats-section {
    background: #fff;
    padding: 50px 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gradient-1 { background: linear-gradient(135deg, #1e3c72, #2a5298); }
.gradient-2 { background: linear-gradient(135deg, #f093fb, #f5576c); }
.gradient-3 { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.gradient-4 { background: linear-gradient(135deg, #43e97b, #38f9d7); }

.stat-label {
    color: #666;
    margin-top: 8px;
    font-weight: 500;
}

/* 通用section */
.features-section,
.leagues-section,
.scenarios-section,
.testimonials-section,
.faq-section {
    padding: 80px 0;
}

.features-section,
.scenarios-section,
.faq-section {
    background: #f8f9fa;
}

.leagues-section,
.testimonials-section {
    background: #fff;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 16px;
    color: #1a1a2e;
}

.section-desc {
    color: #666;
    font-size: 1.1rem;
}

/* 功能卡片 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: #fff;
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}

.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 2.5rem;
}

.icon-blue { background: linear-gradient(135deg, #1e3c72, #2a5298); }
.icon-pink { background: linear-gradient(135deg, #f093fb, #f5576c); }
.icon-cyan { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.icon-green { background: linear-gradient(135deg, #43e97b, #38f9d7); }
.icon-orange { background: linear-gradient(135deg, #fa709a, #fee140); }
.icon-purple { background: linear-gradient(135deg, #30cfd0, #330867); }

.feature-title {
    font-size: 1.4rem;
    margin-bottom: 16px;
    color: #1a1a2e;
}

.feature-desc {
    color: #666;
    line-height: 1.8;
}

/* 赛事卡片 */
.leagues-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.league-card {
    border-radius: 20px;
    padding: 40px;
}

.league-card.football {
    background: linear-gradient(135deg, rgba(30,60,114,0.05), rgba(42,82,152,0.05));
    border: 2px solid var(--primary-blue);
}

.league-card.basketball {
    background: linear-gradient(135deg, rgba(240,147,251,0.05), rgba(245,87,108,0.05));
    border: 2px solid var(--pink);
}

.league-title {
    font-size: 1.6rem;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.league-items {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.league-item {
    background: #fff;
    padding: 16px;
    border-radius: 12px;
    text-align: center;
    font-weight: 600;
}

/* 场景卡片 */
.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.scenario-card {
    background: #fff;
    border-radius: 16px;
    padding: 30px;
    text-align: center;
}

.scenario-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.scenario-title {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: #1a1a2e;
}

.scenario-desc {
    color: #666;
    line-height: 1.8;
}

/* 评价卡片 */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: #f8f9fa;
    border-radius: 16px;
    padding: 30px;
    position: relative;
}

.testimonial-text {
    color: #555;
    line-height: 1.8;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
}

.author-avatar.blue { background: linear-gradient(135deg, #1e3c72, #2a5298); }
.author-avatar.pink { background: linear-gradient(135deg, #f093fb, #f5576c); }
.author-avatar.cyan { background: linear-gradient(135deg, #4facfe, #00f2fe); }

.author-name {
    font-weight: 600;
    color: #1a1a2e;
}

.author-role {
    font-size: 0.9rem;
    color: #999;
}

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

.faq-item {
    background: #fff;
    border-radius: 12px;
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    text-align: left;
    background: none;
    border: none;
    font-size: 1.05rem;
    font-weight: 600;
    color: #1a1a2e;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--primary-blue);
    transition: transform 0.3s;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 24px;
    background: #fafafa;
    color: #666;
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    padding: 0 24px 20px;
    max-height: 500px;
}

/* CTA区域 */
.cta-section {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: #fff;
    padding: 100px 0;
    text-align: center;
}

.cta-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 800;
}

.cta-desc {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.95;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

.cta-features {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 40px;
    font-size: 0.95rem;
    opacity: 0.9;
}

/* ========== 移动端响应式（核心修复）========== */
@media screen and (max-width: 768px) {
    /* 基础调整 */
    .container {
        padding: 0 15px;
    }
    
    /* 英雄区域 */
    .hero-section-fans {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-desc {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
        padding: 14px 24px;
        font-size: 1rem;
    }
    
    /* 数据看板 */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    /* Section标题 */
    .section-title {
        font-size: 1.6rem;
    }
    
    .section-desc {
        font-size: 1rem;
    }
    
    /* 所有网格变单列 */
    .features-grid,
    .leagues-grid,
    .scenarios-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* 卡片内边距 */
    .feature-card,
    .league-card,
    .scenario-card,
    .testimonial-card {
        padding: 24px 20px;
    }
    
    /* 图标缩小 */
    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }
    
    /* 赛事2列 */
    .league-items {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* FAQ */
    .faq-question {
        font-size: 0.95rem;
        padding: 16px;
    }
    
    /* CTA */
    .cta-section {
        padding: 60px 0;
    }
    
    .cta-title {
        font-size: 1.8rem;
    }
    
    .cta-desc {
        font-size: 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn-large {
        width: 100%;
        max-width: 300px;
    }
}

/* 小屏幕手机 */
@media screen and (max-width: 480px) {
    .hero-title {
        font-size: 1.6rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .league-items {
        grid-template-columns: 1fr 1fr;
    }
    
    .section-title {
        font-size: 1.4rem;
    }
}
</style>