/* ============================================
   机玩派 - 首页样式 (简洁版)
   ============================================ */

/* 导航栏滚动效果（仅首页） */
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* Hero 区域 */
.hero {
    min-height: 50vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px 40px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--primary);
    margin-bottom: 24px;
    font-weight: 500;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.2;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 0;
    line-height: 1.7;
}

.hero-subtitle strong {
    color: var(--primary-light);
    font-weight: 600;
}

/* 项目卡片区域 */
.projects-section {
    padding: 32px 20px 80px;
    max-width: 1200px;
    margin: 0 auto;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.project-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.project-card:hover {
    border-color: var(--border-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* 顶部彩色条 */
.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.project-card.basketball::before { background: var(--primary); }
.project-card.football::before { background: var(--secondary); }
.project-card.lottery::before { background: var(--accent); }

/* 卡片头部 */
.card-header {
    padding: 28px 24px 0;
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.basketball .card-icon { background: rgba(59, 130, 246, 0.15); }
.football .card-icon { background: rgba(16, 185, 129, 0.15); }
.lottery .card-icon { background: rgba(245, 158, 11, 0.15); }

.basketball .card-icon svg { stroke: var(--primary); }
.football .card-icon svg { stroke: var(--secondary); }
.lottery .card-icon svg { stroke: var(--accent); fill: none; }

.card-icon svg {
    width: 28px;
    height: 28px;
}

.card-header-text {
    flex: 1;
    min-width: 0;
}

.card-tag {
    display: inline-block;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    font-weight: 600;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.basketball .card-tag { background: rgba(59, 130, 246, 0.15); color: var(--primary); }
.football .card-tag { background: rgba(16, 185, 129, 0.15); color: var(--secondary); }
.lottery .card-tag { background: rgba(245, 158, 11, 0.15); color: #d97706; }

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
    color: var(--text-primary);
}

.card-desc {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 卡片内容 */
.card-content {
    padding: 20px 24px;
    flex: 1;
}

.feature-list {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 16px;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.8125rem;
}

.feature-list li::before {
    content: '';
    width: 4px;
    height: 4px;
    border-radius: 50%;
    flex-shrink: 0;
}

.basketball .feature-list li::before { background: var(--primary); }
.football .feature-list li::before { background: var(--secondary); }
.lottery .feature-list li::before { background: var(--accent); }

/* 卡片底部 */
.card-footer {
    padding: 16px 24px;
    background: rgba(0, 0, 0, 0.03);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-stats {
    display: flex;
    gap: 24px;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 1.125rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.basketball .stat-value { color: var(--primary-light); }
.football .stat-value { color: var(--secondary); }
.lottery .stat-value { color: var(--accent); }

.stat-label {
    font-size: 0.6875rem;
    color: var(--text-muted);
    margin-top: 2px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
    color: white;
}

.basketball .card-btn { background: var(--primary); }
.football .card-btn { background: var(--secondary); }
.lottery .card-btn { background: var(--accent); color: #000; }

.project-card:hover .card-btn {
    opacity: 0.9;
}

.card-btn.disabled {
    background: var(--bg-card-hover) !important;
    color: var(--text-muted) !important;
    cursor: not-allowed;
}

/* 技术介绍区域 */
.tech-section {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
    border-top: 1px solid var(--border-color);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.tech-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.tech-card:hover {
    border-color: var(--border-light);
    transform: translateY(-2px);
}

.tech-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(59, 130, 246, 0.1);
}

.tech-icon svg {
    stroke: var(--primary);
}

.tech-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.tech-card p {
    color: var(--text-secondary);
    font-size: 0.8125rem;
    line-height: 1.6;
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1200px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 40px 20px 30px;
        min-height: 40vh;
    }

    .hero-badge {
        padding: 6px 16px;
        font-size: 0.8125rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 0.9375rem;
    }

    .projects-section {
        padding: 24px 16px 60px;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .card-header {
        padding: 20px 20px 0;
        flex-direction: column;
        gap: 12px;
    }

    .card-icon {
        width: 48px;
        height: 48px;
    }

    .card-icon svg {
        width: 24px;
        height: 24px;
    }

    .card-title {
        font-size: 1rem;
    }

    .card-content {
        padding: 16px 20px;
    }

    .feature-list {
        grid-template-columns: 1fr;
        gap: 6px;
    }

    .card-footer {
        padding: 14px 20px;
        flex-direction: column;
        gap: 14px;
        align-items: stretch;
    }

    .card-stats {
        justify-content: center;
    }

    .card-btn {
        justify-content: center;
        width: 100%;
    }

    .tech-section {
        padding: 48px 16px;
    }

    .section-header {
        margin-bottom: 32px;
    }

    .tech-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .tech-card {
        padding: 20px;
    }

    .tech-icon {
        width: 48px;
        height: 48px;
        margin-bottom: 12px;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 10px 12px;
    }

    .hero {
        padding: 90px 16px 32px;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .projects-section {
        padding: 20px 12px 48px;
    }

    .card-header {
        padding: 16px 16px 0;
    }

    .card-content {
        padding: 14px 16px;
    }

    .card-footer {
        padding: 12px 16px;
    }
}