/* 首页特定样式 */

/* 页面加载状态 */
body {
    opacity: 0;
    transition: opacity 0.5s ease;
}

body.page-loaded {
    opacity: 1;
}

/* 动画优化 */
* {
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

/* 确保动画元素在初始状态下不可见 */
.intro-text, .intro-image, .layout-image, .layout-text, .advantages-overview, .advantage-card, .advantages-stats .stat-item, .certifications-text, .certifications-image, .partners-image, .partners-text, .feature-item, .highlight-item, .certification-item, .partner-logo {
    will-change: transform, opacity;
}

/* 公司简介部分 */
.intro-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 6rem 0;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.intro-text {
    animation: fadeInLeft 0.8s ease-out;
}

.intro-text .section-title {
    font-size: 2.5rem;
    color: #fff;
    margin-bottom: 1.5rem;
}

.intro-description p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
}

.intro-image {
    animation: fadeInRight 0.8s ease-out;
}

.intro-image img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    transition: transform 0.3s ease;
}

.intro-image img:hover {
    transform: scale(1.02);
}

/* 全国布局部分 */
.layout-section {
    background: #fff;
}

.layout-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.layout-image {
    animation: fadeInLeft 0.8s ease-out;
}

.layout-image img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.layout-text h3 {
    font-size: 1.75rem;
    color: #1e40af;
    margin-bottom: 1.5rem;
}

.layout-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #374151;
    margin-bottom: 2rem;
}

.layout-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: #eff6ff;
    transform: translateY(-2px);
}

.feature-item i {
    color: #2563eb;
    font-size: 1.25rem;
}

.feature-item span {
    font-weight: 500;
    color: #374151;
}

/* 核心优势部分 */
.advantages-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 6rem 0;
}

/* 优势概览 */
.advantages-overview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 4rem;
}

.overview-text h3 {
    font-size: 2rem;
    color: #1e40af;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.overview-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #374151;
    margin-bottom: 2rem;
}

.overview-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.stat-highlight {
    text-align: center;
    flex: 1;
}

.stat-highlight .stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 0.5rem;
    display: block;
}

.stat-highlight .stat-label {
    font-size: 0.9rem;
    color: #6b7280;
    font-weight: 500;
}

.overview-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.overview-image img:hover {
    transform: scale(1.05);
}

/* 优势卡片网格 */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.advantage-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid #f1f5f9;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.advantage-card:hover::before {
    transform: scaleX(1);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
    border-color: #e2e8f0;
}

.advantage-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.advantage-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.1) rotate(5deg);
}

.advantage-icon i {
    font-size: 1.25rem;
    color: white;
}

.advantage-header h3 {
    font-size: 1.25rem;
    color: #1e40af;
    font-weight: 600;
    margin: 0;
    line-height: 1.3;
}

.advantage-card p {
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.advantage-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.feature-tag {
    padding: 0.4rem 0.8rem;
    background: #f8fafc;
    color: #374151;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
    display: inline-block;
    opacity: 1 !important;
    transform: none !important;
    visibility: visible !important;
    position: relative;
    z-index: 1;
}

.feature-tag:hover {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* 数据统计 */
.advantages-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantages-stats .stat-item {
    text-align: center;
    padding: 2.5rem 2rem;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.advantages-stats .stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.advantages-stats .stat-item:hover::before {
    transform: scaleX(1);
}

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

.stat-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    transition: transform 0.3s ease;
}

.advantages-stats .stat-item:hover .stat-icon {
    transform: scale(1.1) rotate(5deg);
}

.stat-icon i {
    font-size: 1.5rem;
    color: white;
}

.advantages-stats .stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 0.5rem;
    display: block;
}

.advantages-stats .stat-label {
    font-size: 1.1rem;
    color: #374151;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.advantages-stats .stat-desc {
    font-size: 0.9rem;
    color: #6b7280;
    font-weight: 400;
}

/* 合规认证部分 */
.certifications-section {
    background: #fff;
}

.certifications-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.certifications-text h3 {
    font-size: 1.75rem;
    color: #1e40af;
    margin-bottom: 1.5rem;
}

.certifications-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #374151;
    margin-bottom: 2rem;
}

.certification-list {
    display: grid;
    gap: 1rem;
}

.certification-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.certification-item:hover {
    background: #eff6ff;
    transform: translateX(10px);
}

.certification-item i {
    color: #2563eb;
    font-size: 1.25rem;
}

.certification-item span {
    font-weight: 500;
    color: #374151;
}

.certifications-image {
    animation: fadeInRight 0.8s ease-out;
}

.certifications-image img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* 合作伙伴部分 */
.partners-section {
    background: #f8fafc;
}

.partners-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.partners-image {
    animation: fadeInLeft 0.8s ease-out;
}

.partners-image img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.partners-text h3 {
    font-size: 1.75rem;
    color: #1e40af;
    margin-bottom: 1.5rem;
}

.partners-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #374151;
    margin-bottom: 2rem;
}

.partner-logos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

.partner-logo {
    padding: 1rem;
    background: #fff;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    color: #374151;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.partner-logo:hover {
    background: #eff6ff;
    color: #2563eb;
    transform: translateY(-2px);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .intro-content,
    .layout-content,
    .advantages-content,
    .certifications-content,
    .partners-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .intro-section {
        padding: 3rem 0;
    }
    
    .layout-features {
        grid-template-columns: 1fr;
    }
    
    .partner-logos {
        grid-template-columns: repeat(2, 1fr);
    }

    .advantages-overview {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .overview-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .stat-highlight {
        display: flex;
        align-items: center;
        justify-content: space-between;
        text-align: left;
        padding: 1rem;
        background: #f8fafc;
        border-radius: 12px;
    }

    .stat-highlight .stat-number {
        font-size: 2rem;
        margin-bottom: 0;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .advantage-features {
        justify-content: center;
    }

    .feature-tag {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }

    .advantages-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .advantages-stats .stat-number {
        font-size: 2.5rem;
    }

    .stat-icon {
        width: 50px;
        height: 50px;
    }

    .stat-icon i {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .advantages-stats {
        grid-template-columns: 1fr;
    }

    .advantage-card {
        padding: 1.5rem;
    }

    .advantage-header {
        flex-direction: column;
        text-align: center;
        gap: 0.75rem;
    }

    .advantage-icon {
        width: 60px;
        height: 60px;
    }

    .advantage-icon i {
        font-size: 1.5rem;
    }

    .overview-stats {
        flex-direction: column;
    }

    .stat-highlight {
        text-align: center;
        flex-direction: column;
        gap: 0.5rem;
    }

    .feature-tag {
        font-size: 0.75rem;
        padding: 0.3rem 0.6rem;
    }

    .advantages-stats .stat-item {
        padding: 2rem 1.5rem;
    }

    .advantages-stats .stat-number {
        font-size: 2rem;
    }

    .advantages-stats .stat-label {
        font-size: 1rem;
    }

    .advantages-stats .stat-desc {
        font-size: 0.8rem;
    }
}

/* 动画效果 */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.scroll-animate.animate {
    opacity: 1;
    transform: translateY(0);
}

/* 特性标签动画 */
.feature-tag {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.6s ease;
}

.feature-tag.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* 统计项动画 */
.advantages-stats .stat-item {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.advantages-stats .stat-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* 优势卡片动画 */
.advantage-card {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.advantage-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* 概览统计动画 */
.stat-highlight {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.6s ease;
}

.stat-highlight.animate-in {
    opacity: 1;
    transform: translateX(0);
}

/* 其他元素的动画 */
.intro-text, .intro-image, .layout-image, .layout-text, .advantages-overview, .certifications-text, .certifications-image, .partners-image, .partners-text, .feature-item, .certification-item, .partner-logo {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.intro-text.animate-in, .intro-image.animate-in, .layout-image.animate-in, .layout-text.animate-in, .advantages-overview.animate-in, .certifications-text.animate-in, .certifications-image.animate-in, .partners-image.animate-in, .partners-text.animate-in, .feature-item.animate-in, .certification-item.animate-in, .partner-logo.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* 动画关键帧 */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 动画类 */
.animate-in {
    animation-play-state: running;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}