/* ========================================
   关于我们页面样式
   ======================================== */

/* 全局背景 */
.about-page {
    background: #f8f9fa;
}

/* Hero 横幅区域 */
.hero-section {
    background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
    margin-bottom: 50px;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -80px;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
}

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

/* 主标题样式 */
.section-title-main {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-title-main::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #1e3a8a 0%, #1e40af 100%);
    border-radius: 2px;
}

/* 特色功能卡片 */
.feature-box {
    background: #fff;
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    height: 100%;
    border: none;
}

.feature-box:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: #fff;
}

/* 内容章节卡片 */
.content-section {
    background: #fff;
    border-radius: 15px;
    padding: 0;
    margin-bottom: 40px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    animation: fadeInUp 0.6s ease-out;
    overflow: hidden;
    border: 1px solid rgba(30, 58, 138, 0.08);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 章节头部 */
.section-header {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    padding: 25px 30px;
    border-bottom: 2px solid rgba(30, 58, 138, 0.1);
}

.section-icon-wrapper {
    position: relative;
    z-index: 1;
}

.section-icon-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.1) 0%, rgba(30, 64, 175, 0.1) 100%);
    border-radius: 50%;
    z-index: -1;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.8;
    }
}

.section-icon-wrapper i {
    font-size: 24px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
}

.section-title-custom {
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
    letter-spacing: 0.5px;
}

/* 章节内容区 */
.section-content {
    padding: 30px;
}

.content-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #666;
}

/* 列表样式 */
.content-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.content-list li {
    padding: 12px 0;
    padding-left: 35px;
    position: relative;
    transition: all 0.3s;
}

.content-list li:hover {
    transform: translateX(5px);
}

.content-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 12px;
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
    border-radius: 50%;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    box-shadow: 0 2px 8px rgba(30, 58, 138, 0.3);
}

/* 侧边栏卡片 */
.sidebar-card {
    background: #fff;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    margin-bottom: 25px;
    transition: all 0.3s;
    border: 1px solid rgba(30, 58, 138, 0.1);
}

.sidebar-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
    border-color: rgba(30, 58, 138, 0.3);
}

.sidebar-card-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.sidebar-card-header h4 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
}

.sidebar-card-header i {
    font-size: 1.3rem;
    margin-right: 10px;
    width: 35px;
    height: 35px;
    background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

/* 联系项 */
.contact-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    margin-bottom: 12px;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.contact-item:hover {
    background: #e9ecef;
    border-left-color: #1e3a8a;
    transform: translateX(5px);
}

.contact-icon {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    margin-right: 15px;
    flex-shrink: 0;
}

.contact-info {
    flex: 1;
}

.contact-label {
    font-size: 0.8rem;
    color: #888;
    margin-bottom: 3px;
}

.contact-value {
    font-size: 0.95rem;
    color: #333;
    font-weight: 500;
}

.contact-value a {
    color: #1e3a8a;
    text-decoration: none;
    transition: color 0.3s;
}

.contact-value a:hover {
    color: #1e40af;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 50px 0;
    }
    
    .section-title-main {
        font-size: 2rem;
    }
    
    .feature-box {
        margin-bottom: 20px;
    }
}