/* 首页专属样式 */

/* ==================== 英雄区域 ==================== */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 120px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(30deg, rgba(255,255,255,0.03) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,0.03) 87.5%, rgba(255,255,255,0.03)),
        linear-gradient(150deg, rgba(255,255,255,0.03) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,0.03) 87.5%, rgba(255,255,255,0.03)),
        linear-gradient(30deg, rgba(255,255,255,0.03) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,0.03) 87.5%, rgba(255,255,255,0.03)),
        linear-gradient(150deg, rgba(255,255,255,0.03) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,0.03) 87.5%, rgba(255,255,255,0.03));
    background-size: 80px 140px;
    background-position: 0 0, 0 0, 40px 70px, 40px 70px;
    opacity: 0.3;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

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

.hero .btn {
    padding: 15px 40px;
    font-size: 17px;
}

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

.btn-white:hover {
    background-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.btn-outline {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

.btn-outline:hover {
    background-color: white;
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 255, 255, 0.3);
}

/* ==================== 核心优势 ==================== */
.advantages {
    padding: 80px 0;
    background-color: white;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.advantage-item {
    text-align: center;
    padding: 30px 20px;
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background-color: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--primary-color);
    font-size: 36px;
    font-weight: 700;
}

.advantage-item h3 {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 12px;
    font-weight: 600;
}

.advantage-item p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

/* ==================== 业务领域 ==================== */
.business-areas {
    padding: 80px 0;
    background-color: var(--bg-gray);
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.business-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.business-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    transform: translateY(-8px);
}

.business-card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
}

.business-card-header h3 {
    font-size: 24px;
    margin-bottom: 10px;
    font-weight: 600;
}

.business-card-header p {
    font-size: 14px;
    opacity: 0.9;
}

.business-card-body {
    padding: 30px;
}

.business-card-body ul {
    list-style: none;
}

.business-card-body ul li {
    padding: 10px 0;
    color: var(--text-secondary);
    font-size: 15px;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    padding-left: 20px;
}

.business-card-body ul li:last-child {
    border-bottom: none;
}

.business-card-body ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 700;
}

/* ==================== 数据统计 ==================== */
.statistics {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.statistics::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(30deg, rgba(255,255,255,0.03) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,0.03) 87.5%, rgba(255,255,255,0.03)),
        linear-gradient(150deg, rgba(255,255,255,0.03) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,0.03) 87.5%, rgba(255,255,255,0.03));
    background-size: 80px 140px;
    opacity: 0.3;
}

.statistics .container {
    position: relative;
    z-index: 1;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-top: 50px;
}

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

.stat-number {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 10px;
    display: block;
}

.stat-label {
    font-size: 16px;
    opacity: 0.9;
}

/* ==================== 合作伙伴 ==================== */
.partners {
    padding: 80px 0;
    background-color: white;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 30px;
    margin-top: 50px;
    align-items: center;
}

.partner-logo {
    background-color: var(--accent-color);
    padding: 30px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.partner-logo:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.partner-logo span {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    text-align: center;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 992px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .business-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 80px 0 60px;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .advantages-grid,
    .business-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-number {
        font-size: 36px;
    }
}