/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a73e8;
    --secondary-color: #0d47a1;
    --accent-color: #ff6f00;
    --text-dark: #333;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --shadow: 0 2px 20px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 30px rgba(0,0,0,0.15);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.logo i {
    font-size: 32px;
}

.logo-text {
    font-size: 28px;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-contact {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-color);
    font-weight: 600;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: var(--transition);
}

/* 首页横幅 */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, rgba(26, 115, 232, 0.9), rgba(13, 71, 161, 0.9)),
                url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?w=1920&h=1080&fit=crop');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
    padding: 0 20px;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
}

.hero-title .highlight {
    display: block;
    font-size: 48px;
    color: var(--accent-color);
    margin-top: 10px;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s;
    animation-fill-mode: both;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 50px;
    animation: fadeInUp 1s ease 0.4s;
    animation-fill-mode: both;
}

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

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--accent-color);
    display: block;
}

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

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    animation: fadeInUp 1s ease 0.6s;
    animation-fill-mode: both;
}

.btn {
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
    border: 2px solid var(--accent-color);
}

.btn-primary:hover {
    background: transparent;
    color: white;
    border-color: white;
}

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

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

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.hero-scroll a {
    color: white;
    font-size: 24px;
}

/* 区块通用样式 */
.section {
    padding: 100px 0;
}

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

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(26, 115, 232, 0.1);
    color: var(--primary-color);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.section-desc {
    font-size: 18px;
    color: var(--text-light);
}

/* 关于我们 */
.about {
    background: var(--bg-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.about-text h3 {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.about-text .lead {
    font-size: 18px;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
}

.about-text p {
    margin-bottom: 15px;
    line-height: 1.8;
    color: var(--text-light);
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.feature-item i {
    color: var(--primary-color);
}

.about-image {
    position: relative;
}

.image-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.image-wrapper img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.experience-badge {
    position: absolute;
    bottom: 30px;
    right: 30px;
    background: var(--accent-color);
    color: white;
    padding: 20px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
}

.experience-badge .years {
    display: block;
    font-size: 36px;
    font-weight: 700;
}

.experience-badge .text {
    font-size: 14px;
}

/* 时间线 */
.timeline {
    margin-top: 80px;
}

.timeline-title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 50px;
}

.timeline-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.timeline-item {
    text-align: center;
    padding: 30px;
    background: var(--bg-light);
    border-radius: 15px;
    transition: var(--transition);
}

.timeline-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}

.timeline-year {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.timeline-content h4 {
    font-size: 20px;
    margin-bottom: 10px;
}

.timeline-content p {
    color: var(--text-light);
}

/* 产品中心 */
.products {
    background: var(--bg-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 115, 232, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.btn-small {
    padding: 10px 25px;
    background: white;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-small:hover {
    background: var(--accent-color);
    color: white;
}

.product-info {
    padding: 25px;
}

.product-info h3 {
    font-size: 22px;
    margin-bottom: 10px;
}

.product-info p {
    color: var(--text-light);
    margin-bottom: 15px;
}

.product-features {
    list-style: none;
}

.product-features li {
    padding: 5px 0;
    color: var(--text-light);
}

.product-features i {
    color: var(--primary-color);
    margin-right: 8px;
}

/* 成功案例 */
.cases {
    background: white;
}

.cases-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 10px 25px;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary-color);
    color: white;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.case-item {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.case-item:hover {
    transform: translateY(-10px);
}

.case-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: white;
    padding: 30px;
    transform: translateY(100%);
    transition: var(--transition);
}

.case-item:hover .case-overlay {
    transform: translateY(0);
}

.case-overlay h4 {
    font-size: 20px;
    margin-bottom: 5px;
}

.case-overlay p {
    font-size: 14px;
    opacity: 0.9;
}

.case-tag {
    display: inline-block;
    padding: 5px 15px;
    background: var(--accent-color);
    border-radius: 50px;
    font-size: 12px;
    margin-top: 10px;
}

/* 服务项目 */
.services {
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.service-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    background: var(--primary-color);
    color: white;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: rgba(26, 115, 232, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: rgba(255, 255, 255, 0.2);
}

.service-icon i {
    font-size: 32px;
    color: var(--primary-color);
    transition: var(--transition);
}

.service-card:hover .service-icon i {
    color: white;
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-light);
    line-height: 1.8;
    transition: var(--transition);
}

.service-card:hover p {
    color: rgba(255, 255, 255, 0.9);
}

/* 服务亮点 */
.service-highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 60px;
    border-radius: 20px;
    color: white;
    text-align: center;
}

.highlight-content {
    max-width: 800px;
    margin: 0 auto;
}

.highlight-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.service-highlight h3 {
    font-size: 32px;
    margin-bottom: 20px;
}

.service-highlight p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.highlight-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

/* 新闻资讯 */
.news {
    background: white;
}

/* 首页新闻左右分栏 */
.news-split-layout {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
    align-items: start;
}

/* 左侧大图新闻 */
.news-featured {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    background: white;
    height: 100%;
}

.news-featured:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.12);
}

.news-featured-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.news-featured-image {
    position: relative;
    height: 320px;
    overflow: hidden;
}

.news-featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.news-featured:hover .news-featured-image img {
    transform: scale(1.08);
}

.news-featured-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
}

.news-featured-content {
    padding: 28px;
}

.news-featured-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 14px;
    font-size: 13px;
    color: var(--text-light);
}

.news-featured-meta i {
    margin-right: 4px;
    color: var(--primary-color);
}

.news-featured-cate {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 50px;
    background: rgba(26, 115, 232, 0.1);
    color: var(--primary-color);
    font-weight: 600;
    font-size: 12px;
}

.news-featured-content h3 {
    font-size: 22px;
    margin-bottom: 12px;
    line-height: 1.4;
    color: var(--text-dark);
    transition: color 0.3s;
}

.news-featured:hover .news-featured-content h3 {
    color: var(--primary-color);
}

.news-featured-content p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.news-featured-content .read-more {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.3s;
}

.news-featured:hover .read-more {
    gap: 12px;
}

/* 右侧新闻列表 */
.news-right {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow);
}

.news-right-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--bg-light);
}

.news-right-header h3 {
    font-size: 20px;
    color: var(--text-dark);
    position: relative;
    padding-left: 14px;
}

.news-right-header h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.news-right-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.news-right-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid rgba(0,0,0,0.04);
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    border-radius: 10px;
    padding: 14px 12px;
}

.news-right-item:last-child {
    border-bottom: none;
}

.news-right-item:hover {
    background: var(--bg-light);
    transform: translateX(4px);
}

.news-right-num {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    font-size: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.news-right-info {
    flex: 1;
    min-width: 0;
}

.news-right-info h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.5;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s;
}

.news-right-item:hover .news-right-info h4 {
    color: var(--primary-color);
}

.news-right-meta {
    display: flex;
    gap: 14px;
    font-size: 12px;
    color: var(--text-light);
}

.news-right-meta i {
    margin-right: 3px;
}

/* 响应式 */
@media (max-width: 1024px) {
    .news-split-layout {
        grid-template-columns: 1fr;
    }
    .news-featured-image {
        height: 260px;
    }
    .news-right {
        padding: 24px;
    }
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.news-card {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    background: white;
}

.news-card:hover {
    transform: translateY(-10px);
}

.news-card.main-news {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.news-image {
    position: relative;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition);
}

.news-card:hover .news-image img {
    transform: scale(1.1);
}

.news-card.main-news .news-image img {
    height: 100%;
}

.news-date {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--accent-color);
    color: white;
    padding: 10px 15px;
    border-radius: 10px;
    text-align: center;
}

.news-date .day {
    display: block;
    font-size: 24px;
    font-weight: 700;
}

.news-date .month {
    font-size: 12px;
}

.news-content {
    padding: 25px;
}

.news-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
    font-size: 14px;
    color: var(--text-light);
}

.news-meta i {
    margin-right: 5px;
    color: var(--primary-color);
}

.news-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
    line-height: 1.4;
}

.news-content p {
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.8;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition);
}

.read-more:hover {
    gap: 10px;
}

.news-more {
    text-align: center;
}

/* 联系我们 */
.contact {
    background: var(--bg-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.info-card {
    background: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.info-card:hover {
    transform: translateY(-5px);
}

.info-icon {
    width: 60px;
    height: 60px;
    background: rgba(26, 115, 232, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
}

.info-icon i {
    font-size: 24px;
    color: var(--primary-color);
}

.info-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.info-card p {
    font-size: 16px;
    color: var(--text-dark);
    font-weight: 600;
    margin-bottom: 5px;
}

.info-detail {
    font-size: 14px;
    color: var(--text-light);
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.contact-form h3 {
    font-size: 24px;
    margin-bottom: 30px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-full {
    width: 100%;
    text-align: center;
}

/* 页脚 */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
}

.footer-logo i {
    font-size: 32px;
    color: var(--primary-color);
}

.footer-logo .logo-text {
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
}

.footer-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: white;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.contact-info-list {
    list-style: none;
}

.contact-info-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    color: rgba(255, 255, 255, 0.7);
}

.contact-info-list i {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
}

/* 返回顶部 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--accent-color);
    transform: translateY(-5px);
}

/* 核心优势 */
.features {
    background: var(--bg-light);
}

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

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    background: var(--primary-color);
    color: white;
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: rgba(26, 115, 232, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background: rgba(255, 255, 255, 0.2);
}

.feature-icon i {
    font-size: 32px;
    color: var(--primary-color);
    transition: var(--transition);
}

.feature-card:hover .feature-icon i {
    color: white;
}

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
    transition: var(--transition);
}

.feature-card:hover p {
    color: rgba(255, 255, 255, 0.9);
}

.learn-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition);
}

.feature-card:hover .learn-more {
    color: white;
    gap: 10px;
}

/* 公司简介预览 */
.about-preview {
    background: white;
    padding: 100px 0;
}

.about-preview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-preview-text {
    padding-right: 40px;
}

.about-preview-text .section-tag {
    display: inline-block;
    padding: 5px 15px;
    background: rgba(26, 115, 232, 0.1);
    color: var(--primary-color);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

.about-preview-text .section-title {
    font-size: 42px;
    line-height: 1.3;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.about-preview-text .lead {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.about-preview-text p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 15px;
}

.about-highlights {
    margin: 30px 0;
}

.highlight-item {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.highlight-item i {
    color: var(--primary-color);
    margin-top: 5px;
    font-size: 18px;
}

.highlight-item h4 {
    font-size: 16px;
    margin-bottom: 5px;
    color: var(--text-dark);
}

.highlight-item p {
    font-size: 14px;
    color: var(--text-light);
    margin: 0;
}

.about-preview-image {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
}

.about-preview-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.experience-badge {
    position: absolute;
    bottom: 30px;
    right: 30px;
    background: var(--primary-color);
    color: white;
    padding: 20px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.experience-badge .number {
    display: block;
    font-size: 36px;
    font-weight: 700;
}

.experience-badge .text {
    font-size: 14px;
    opacity: 0.9;
}

/* 产品展示 */
.products-preview {
    background: var(--bg-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.product-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-image {
    height: 250px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-info {
    padding: 30px;
}

.product-info h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.product-info p {
    color: var(--text-light);
    margin-bottom: 20px;
}

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

/* 最新新闻 */
.news-preview {
    background: white;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.news-card {
    background: var(--bg-light);
    border-radius: 15px;
    overflow: hidden;
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}

.news-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-date {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--primary-color);
    color: white;
    padding: 10px 15px;
    border-radius: 5px;
    text-align: center;
}

.news-date .day {
    display: block;
    font-size: 24px;
    font-weight: 700;
    line-height: 1;
}

.news-date .month {
    font-size: 12px;
    opacity: 0.9;
}

.news-content {
    padding: 30px;
}

.news-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 14px;
    color: var(--text-light);
}

.news-meta i {
    color: var(--primary-color);
    margin-right: 5px;
}

.news-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
    line-height: 1.4;
}

.news-content p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 15px;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition);
}

.read-more:hover {
    gap: 10px;
}

/* 成功案例预览 */
.cases-preview {
    background: var(--bg-light);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.case-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.case-card:hover {
    transform: translateY(-10px);
}

.case-image {
    height: 250px;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.case-card:hover .case-image img {
    transform: scale(1.1);
}

.case-info {
    padding: 30px;
}

.case-category {
    display: inline-block;
    padding: 5px 15px;
    background: var(--primary-color);
    color: white;
    border-radius: 50px;
    font-size: 12px;
    margin-bottom: 15px;
}

.case-info h3 {
    font-size: 20px;
    margin-bottom: 10px;
}
.case-info h3 a {
    color: var(--text-dark);
    text-decoration: none;
    transition: color 0.3s;
}
.case-info h3 a:hover {
    color: var(--primary-color);
}
.case-image a {
    display: block;
    height: 100%;
}

.case-info p {
    color: var(--text-light);
}

/* 快速链接 */
.quick-links {
    background: white;
    padding: 80px 0;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.link-card {
    background: var(--bg-light);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    text-decoration: none;
    color: var(--text-dark);
    transition: var(--transition);
}

.link-card:hover {
    transform: translateY(-10px);
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow);
}

.link-card i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: block;
    transition: var(--transition);
}

.link-card:hover i {
    color: white;
}

.link-card h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.link-card p {
    color: var(--text-light);
    transition: var(--transition);
}

.link-card:hover p {
    color: rgba(255, 255, 255, 0.9);
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-10px) translateX(-50%);
    }
    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

/* 页面标题栏 */
.page-header {
    height: 400px;
    background: linear-gradient(135deg, rgba(26, 115, 232, 0.9), rgba(13, 71, 161, 0.9)),
                url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?w=1920&h=400&fit=crop');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin-top: 70px;
}

.page-header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.page-header .container {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
}

.page-header h1 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
}

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

.breadcrumb a {
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumb a:hover {
    color: var(--accent-color);
}

.breadcrumb span {
    margin: 0 10px;
}

/* 关于我们页面 */
.about-page {
    background: white;
}

.about-values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin: 80px 0;
}

.value-card {
    text-align: center;
    padding: 40px 30px;
    background: var(--bg-light);
    border-radius: 15px;
    transition: var(--transition);
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}

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

.value-icon i {
    font-size: 32px;
    color: white;
}

.value-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.value-card p {
    color: var(--text-light);
    line-height: 1.8;
}

.qualifications {
    margin-top: 80px;
    padding-top: 60px;
    border-top: 2px solid var(--bg-light);
}

.section-subtitle {
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
}

.qual-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.qual-item {
    text-align: center;
    padding: 30px;
    background: var(--bg-light);
    border-radius: 15px;
}

.qual-item i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.qual-item h4 {
    font-size: 16px;
    color: var(--text-dark);
}

/* 产品中心页面 */
.products-page {
    background: var(--bg-light);
}

.product-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 30px;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

.tab-btn.active,
.tab-btn:hover {
    background: var(--primary-color);
    color: white;
}

.products-grid-detailed {
    display: flex;
    flex-direction: column;
    gap: 50px;
}

.product-detail-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.product-gallery {
    position: relative;
}

.main-image {
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 15px;
}

.main-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.thumbnail-images {
    display: flex;
    gap: 10px;
}

.thumbnail-images img {
    width: 100px;
    height: 70px;
    object-fit: cover;
    border-radius: 5px;
    cursor: pointer;
    transition: var(--transition);
}

.thumbnail-images img:hover {
    opacity: 0.7;
}

.product-details h3 {
    font-size: 32px;
    margin-bottom: 15px;
}

.product-intro {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 30px;
}

.product-specs,
.product-params {
    margin-bottom: 30px;
}

.product-specs h4,
.product-params h4 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.product-specs ul {
    list-style: none;
}

.product-specs li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
    color: var(--text-light);
}

.product-specs i {
    color: var(--primary-color);
    margin-right: 10px;
}

.params-table {
    width: 100%;
    border-collapse: collapse;
}

.params-table td {
    padding: 12px 15px;
    border: 1px solid #eee;
}

.params-table td:first-child {
    background: var(--bg-light);
    font-weight: 600;
    width: 30%;
}

.product-actions {
    display: flex;
    gap: 15px;
}

/* 成功案例页面 */
.cases-page {
    background: white;
}

.cases-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 30px;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary-color);
    color: white;
}

.cases-grid-detailed {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-bottom: 50px;
}

.case-detail-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background: var(--bg-light);
    padding: 30px;
    border-radius: 15px;
    transition: var(--transition);
}

.case-detail-item:hover {
    box-shadow: var(--shadow);
}

.case-detail-item .case-image {
    border-radius: 10px;
    overflow: hidden;
}

.case-detail-item .case-image img {
    width: 100%;
    height: 350px;
    object-fit: cover;
}

.case-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.case-category {
    display: inline-block;
    padding: 5px 15px;
    background: var(--primary-color);
    color: white;
    border-radius: 50px;
    font-size: 14px;
    margin-bottom: 15px;
    width: fit-content;
}

.case-info h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.case-desc {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.case-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 20px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-light);
}

.detail-item i {
    color: var(--primary-color);
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
}

.page-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 5px;
    transition: var(--transition);
}

.page-btn.active,
.page-btn:hover {
    background: var(--primary-color);
    color: white;
}

/* 服务项目页面 */
.services-page {
    background: var(--bg-light);
}

.services-grid-detailed {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.service-detail-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);;
}

.service-detail-card:hover {
    transform: translateY(-10px);
}

.service-icon-large {
    width: 100px;
    height: 100px;
    background: rgba(26, 115, 232, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    transition: var(--transition);
}

.service-detail-card:hover .service-icon-large {
    background: var(--primary-color);
}

.service-icon-large i {
    font-size: 40px;
    color: var(--primary-color);
    transition: var(--transition);
}

.service-detail-card:hover .service-icon-large i {
    color: white;
}

.service-detail-card h3 {
    font-size: 26px;
    margin-bottom: 15px;
}

.service-intro {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.service-features h4,
.service-process h4 {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.service-features ul {
    list-style: none;
    text-align: left;
    margin-bottom: 25px;
}

.service-features li {
    padding: 8px 0;
    color: var(--text-light);
}

.service-features i {
    color: var(--primary-color);
    margin-right: 10px;
}

.service-process {
    margin-top: 80px;
    padding-top: 60px;
    border-top: 2px solid #eee;
}

.process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.process-step {
    flex: 1;
    min-width: 150px;
    text-align: center;
    padding: 30px 20px;
    background: white;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.step-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.3;
    margin-bottom: 10px;
}

.step-icon {
    width: 60px;
    height: 60px;
    background: rgba(26, 115, 232, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
}

.step-icon i {
    font-size: 24px;
    color: var(--primary-color);
}

.process-step h4 {
    font-size: 18px;
    margin-bottom: 10px;
}

.process-step p {
    font-size: 14px;
    color: var(--text-light);
}

.process-arrow {
    color: var(--primary-color);
    font-size: 24px;
}

/* 新闻资讯页面 */
.news-page {
    background: white;
}

.news-categories {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.category-btn {
    padding: 10px 25px;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

.category-btn.active,
.category-btn:hover {
    background: var(--primary-color);
    color: white;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 50px;
}

.news-list-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 30px;
    background: var(--bg-light);
    padding: 20px;
    border-radius: 15px;
    transition: var(--transition);
}

.news-list-item:hover {
    box-shadow: var(--shadow);
}

.news-thumbnail {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
}

.news-thumbnail img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 10px;
    font-size: 14px;
    color: var(--text-light);
}

.news-category {
    color: var(--primary-color);
    font-weight: 600;
}

.news-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
    line-height: 1.4;
}

.news-content p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 15px;
}

.news-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.news-share {
    display: flex;
    align-items: center;
    gap: 10px;
}

.news-share a {
    color: var(--text-light);
    transition: var(--transition);
}

.news-share a:hover {
    color: var(--primary-color);
}

/* 联系我们页面 */
.contact-page {
    background: var(--bg-light);
}

.contact-info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.info-card-large {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.info-card-large:hover {
    transform: translateY(-5px);
}

.info-card-large .info-icon {
    width: 80px;
    height: 80px;
    background: rgba(26, 115, 232, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.info-card-large .info-icon i {
    font-size: 32px;
    color: var(--primary-color);
}

.info-card-large h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

.info-main {
    font-size: 20px;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 10px;
}

.info-detail {
    font-size: 14px;
    color: var(--text-light);
}

.contact-main-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.contact-form-section {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.contact-form-section h3 {
    font-size: 28px;
    margin-bottom: 10px;
}

.form-desc {
    color: var(--text-light);
    margin-bottom: 30px;
}

.contact-form-detailed .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.contact-form-detailed label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-dark);
}

.required {
    color: red;
}

.contact-form-detailed input,
.contact-form-detailed select,
.contact-form-detailed textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
    transition: var(--transition);
    font-family: inherit;
}

.contact-form-detailed input:focus,
.contact-form-detailed select:focus,
.contact-form-detailed textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
}

.btn-large {
    padding: 18px 50px;
    font-size: 18px;
}

.contact-sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.sidebar-card {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.sidebar-card h4 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.qrcode-placeholder {
    text-align: center;
    padding: 40px;
    background: var(--bg-light);
    border-radius: 10px;
}

.qrcode-placeholder i {
    font-size: 80px;
    color: var(--text-light);
    margin-bottom: 15px;
}

.service-center-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.center-item {
    display: flex;
    gap: 15px;
    padding: 15px;
    background: var(--bg-light);
    border-radius: 10px;
}

.center-item i {
    color: var(--primary-color);
    margin-top: 5px;
}

.center-item h5 {
    font-size: 16px;
    margin-bottom: 5px;
}

.center-item p {
    font-size: 14px;
    color: var(--text-light);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    padding: 15px;
    background: var(--bg-light);
    border-radius: 10px;
}

.faq-item h5 {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.faq-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: white;
        width: 100%;
        padding: 20px;
        box-shadow: var(--shadow);
        transition: var(--transition);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-title .highlight {
        font-size: 32px;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 30px;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .news-card.main-news {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 32px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-title .highlight {
        font-size: 24px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }

    .cases-filter {
        flex-wrap: wrap;
    }

    .timeline-items {
        grid-template-columns: 1fr;
    }
}

/* AOS动画替代 */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translate(0);
}

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

/* 公司概况 */
.about-detail {
    background: white;
}

.about-content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.about-text-full .lead {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-text-full p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 15px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 2px solid var(--bg-light);
}

.stat-box {
    text-align: center;
    padding: 20px;
    background: var(--bg-light);
    border-radius: 10px;
}

.stat-box .stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
    -webkit-text-fill-color: var(--primary-color);
}

.stat-box .stat-label {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 5px;
}

.about-image-grid {
    position: relative;
}

.about-image-grid .img-main {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 15px;
}

.about-image-grid .img-sub {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 200px;
    height: 150px;
    object-fit: cover;
    border-radius: 10px;
    border: 5px solid white;
    box-shadow: var(--shadow);
}

/* 企业理念 */
.values-section {
    background: var(--bg-light);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.value-card-large {
    background: white;
    padding: 50px 40px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.value-card-large:hover {
    transform: translateY(-10px);
}

.value-icon-large {
    width: 100px;
    height: 100px;
    background: rgba(26, 115, 232, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    transition: var(--transition);
}

.value-card-large:hover .value-icon-large {
    background: var(--primary-color);
}

.value-icon-large i {
    font-size: 40px;
    color: var(--primary-color);
    transition: var(--transition);
}

.value-card-large:hover .value-icon-large i {
    color: white;
}

.value-card-large h3 {
    font-size: 28px;
    margin-bottom: 20px;
}

.value-card-large p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
}

/* 资质与历程 */
.history-section {
    background: white;
}

.qualifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.qual-card {
    text-align: center;
    padding: 40px 30px;
    background: var(--bg-light);
    border-radius: 15px;
    transition: var(--transition);
}

.qual-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}

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

.qual-icon i {
    font-size: 32px;
    color: white;
}

.qual-card h4 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.qual-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

/* 时间线 */
.timeline {
    position: relative;
    padding: 40px 0;
}

.timeline-title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 50px;
    color: var(--text-dark);
}

.timeline-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.timeline-item {
    position: relative;
    padding: 30px;
    background: var(--bg-light);
    border-radius: 15px;
    transition: var(--transition);
}

.timeline-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.timeline-year {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.timeline-content h4 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.timeline-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

/* 工业4.0制造 */
.manufacturing-section {
    background: var(--bg-light);
}

.manufacturing-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.manufacturing-text h3 {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.manufacturing-text p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 30px;
}

.manufacturing-features {
    list-style: none;
}

.manufacturing-features li {
    padding: 12px 0;
    border-bottom: 1px solid #eee;
    color: var(--text-light);
}

.manufacturing-features i {
    color: var(--primary-color);
    margin-right: 10px;
}

.manufacturing-image img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    border-radius: 15px;
}

/* 研发中心 */
.rd-section {
    background: white;
}

.rd-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.rd-content .lead {
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 50px;
}

.rd-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.rd-feature {
    padding: 40px 30px;
    background: var(--bg-light);
    border-radius: 15px;
    transition: var(--transition);
}

.rd-feature:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}

.rd-feature i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: block;
}

.rd-feature h4 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.rd-feature p {
    font-size: 14px;
    color: var(--text-light);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .about-content-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-image-grid .img-sub {
        position: relative;
        bottom: 0;
        right: 0;
        margin-top: 20px;
        width: 100%;
        height: 200px;
    }
    
    .manufacturing-content {
        grid-template-columns: 1fr;
    }
}


/* ========== 美化样式优化 ========== */
/* ========== 美化样式补充 ========== */

/* 全局优化 */
.section {
    padding: 100px 0;
    position: relative;
}

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

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
    line-height: 1.3;
}

.section-desc {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* 首页英雄区优化 */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?w=1920&h=1080&fit=crop') center/cover;
    opacity: 0.3;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: white;
    padding: 0 20px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-title .highlight {
    display: block;
    font-size: 48px;
    background: linear-gradient(135deg, #ff6f00, #ff9800);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: 10px;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

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

.hero-stats .stat-number {
    font-size: 48px;
    font-weight: 800;
    display: block;
    margin-bottom: 5px;
    background: linear-gradient(135deg, #fff, #e3f2fd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

/* 按钮样式优化 */
.btn {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-color: var(--primary-color);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(26, 115, 232, 0.4);
}

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

.btn-outline:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-3px);
}

/* 核心优势卡片优化 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 50px 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transition: left 0.4s ease;
    z-index: 0;
}

.feature-card:hover::before {
    left: 0;
}

.feature-card:hover {
    color: white;
    transform: translateY(-10px);
}

.feature-card > * {
    position: relative;
    z-index: 1;
}

.feature-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, rgba(26, 115, 232, 0.1), rgba(13, 71, 161, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    transition: all 0.4s ease;
}

.feature-card:hover .feature-icon {
    background: rgba(255, 255, 255, 0.2);
}

.feature-icon i {
    font-size: 42px;
    color: var(--primary-color);
    transition: all 0.4s ease;
}

.feature-card:hover .feature-icon i {
    color: white;
}

.feature-card h3 {
    font-size: 26px;
    margin-bottom: 15px;
    color: var(--text-dark);
    transition: color 0.4s ease;
}

.feature-card:hover h3 {
    color: white;
}

.feature-card p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
    transition: color 0.4s ease;
}

.feature-card:hover p {
    color: rgba(255, 255, 255, 0.9);
}

.learn-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 20px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.4s ease;
}

.feature-card:hover .learn-more {
    color: white;
}

/* 产品展示优化 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.product-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
}

.product-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.product-image {
    height: 280px;
    overflow: hidden;
    position: relative;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.15);
}

.product-info {
    padding: 35px;
}

.product-info h3 {
    font-size: 26px;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.product-info p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 25px;
}

/* 新闻卡片优化 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.news-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.news-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.news-card:hover .news-image img {
    transform: scale(1.1);
}

.news-date {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--primary-color);
    color: white;
    padding: 12px 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(26, 115, 232, 0.4);
}

.news-date .day {
    display: block;
    font-size: 28px;
    font-weight: 700;
    line-height: 1;
}

.news-date .month {
    font-size: 13px;
    opacity: 0.9;
}

.news-content {
    padding: 35px;
}

.news-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
    font-size: 14px;
    color: var(--text-light);
}

.news-meta i {
    color: var(--primary-color);
    margin-right: 5px;
}

.news-content h3 {
    font-size: 22px;
    margin-bottom: 12px;
    line-height: 1.4;
    color: var(--text-dark);
}

.news-content p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.read-more:hover {
    gap: 12px;
}

/* 关于我们页面优化 */
.about-preview-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-preview-text {
    padding-right: 40px;
}

.about-preview-text .section-tag {
    margin-bottom: 25px;
}

.about-preview-text .section-title {
    font-size: 48px;
    margin-bottom: 25px;
    line-height: 1.3;
}

.about-preview-text .lead {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-preview-text p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 18px;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 25px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.highlight-item:hover {
    background: rgba(26, 115, 232, 0.08);
    transform: translateX(5px);
}

.highlight-item i {
    color: var(--primary-color);
    margin-top: 5px;
    font-size: 20px;
}

.highlight-item h4 {
    font-size: 18px;
    margin-bottom: 6px;
    color: var(--text-dark);
}

.highlight-item p {
    font-size: 14px;
    color: var(--text-light);
    margin: 0;
}

/* 响应式优化 */
@media (max-width: 992px) {
    .hero-title {
        font-size: 42px;
    }
    
    .hero-title .highlight {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .about-preview-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .about-preview-text {
        padding-right: 0;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 32px;
    }
    
    .hero-title .highlight {
        font-size: 28px;
    }
    
    .hero-stats {
        gap: 30px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 30px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .products-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== 模板动态化补充样式 ========== */

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 50px;
    flex-wrap: wrap;
}
.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 14px;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition);
}
.pagination a:hover,
.pagination a.active,
.pagination span.active {
    background: var(--primary-color);
    color: white;
}
.pagination a.disabled {
    opacity: 0.4;
    pointer-events: none;
}

/* 新闻列表页 */
.news-list-section {
    background: white;
    padding: 80px 0;
}
.news-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}
.news-list-card {
    background: var(--bg-light);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition);
}
.news-list-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}
.news-list-image {
    position: relative;
    height: 240px;
    overflow: hidden;
}
.news-list-image a {
    display: block;
    height: 100%;
}
.news-list-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.news-list-card:hover .news-list-image img {
    transform: scale(1.1);
}
.news-list-date {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--primary-color);
    color: white;
    padding: 10px 16px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(26, 115, 232, 0.4);
}
.news-list-date .day {
    display: block;
    font-size: 24px;
    font-weight: 700;
    line-height: 1;
}
.news-list-date .month {
    font-size: 12px;
    opacity: 0.9;
}
.news-list-content {
    padding: 30px;
}
.news-list-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--text-light);
}
.news-list-cate {
    color: var(--primary-color);
    font-weight: 600;
}
.news-list-content h3 {
    font-size: 20px;
    margin-bottom: 12px;
    line-height: 1.4;
}
.news-list-content h3 a {
    color: var(--text-dark);
    text-decoration: none;
    transition: color 0.3s;
}
.news-list-content h3 a:hover {
    color: var(--primary-color);
}
.news-list-content p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 18px;
}

/* 文章详情页 */
.article-detail {
    background: white;
    padding: 80px 0;
}
.article-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 50px;
    align-items: start;
}
.article-main {
    min-width: 0;
}
.article-header {
    margin-bottom: 24px;
}
.article-meta-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--bg-light);
    margin-bottom: 24px;
    font-size: 14px;
    color: var(--text-light);
}
.article-meta-bar i {
    color: var(--primary-color);
    margin-right: 5px;
}
.meta-cate {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 50px;
    font-size: 12px;
    background: rgba(26, 115, 232, 0.1);
    color: var(--primary-color);
    font-weight: 600;
}
.article-cover {
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 32px;
}
.article-cover img {
    width: 100%;
    height: 420px;
    object-fit: cover;
}
.article-body {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-dark);
}
.article-body p {
    margin-bottom: 18px;
}
.article-body img {
    max-width: 100%;
    border-radius: 12px;
    margin: 20px 0;
}
.article-share {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 2px solid var(--bg-light);
}
.share-label {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 600;
}
.share-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    border: none;
    cursor: pointer;
    transition: transform 0.2s;
    font-size: 18px;
}
.share-btn:hover {
    transform: translateY(-3px);
}
.share-wechat { background: #07C160; }
.share-weibo { background: #E6162D; }
.share-qq { background: #1296DB; }

/* 侧边栏 */
.article-sidebar {
    position: sticky;
    top: 100px;
}
.sidebar-widget {
    background: var(--bg-light);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
}
.widget-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 18px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--primary-color);
}
.widget-title i {
    color: var(--primary-color);
}
.related-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.related-item {
    display: flex;
    gap: 14px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: padding-left 0.2s;
    text-decoration: none;
    color: inherit;
}
.related-item:last-child {
    border-bottom: none;
}
.related-item:hover {
    padding-left: 6px;
}
.related-img {
    flex-shrink: 0;
    width: 80px;
    height: 60px;
    border-radius: 8px;
    overflow: hidden;
}
.related-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.related-info {
    flex: 1;
    min-width: 0;
}
.related-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.5;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.related-item:hover .related-title {
    color: var(--primary-color);
}
.related-date {
    font-size: 12px;
    color: var(--text-light);
}
.latest-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.latest-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: padding-left 0.2s;
    text-decoration: none;
    color: inherit;
}
.latest-item:last-child {
    border-bottom: none;
}
.latest-item:hover {
    padding-left: 6px;
}
.latest-num {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}
.latest-title {
    font-size: 14px;
    color: var(--text-dark);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.latest-item:hover .latest-title {
    color: var(--primary-color);
}

/* 联系页面 */
.contact-section {
    background: white;
    padding: 80px 0;
}
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
}
.contact-card {
    background: var(--bg-light);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
}
.contact-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow);
}
.contact-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 24px;
}
.contact-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--text-dark);
}
.contact-card p,
.contact-card p a {
    font-size: 16px;
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
}
.contact-person {
    background: var(--bg-light);
    padding: 80px 0;
}
.contact-person-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    justify-content: center;
}
.contact-person-info {
    text-align: center;
    justify-self: center;
    max-width: 560px;
}
.contact-person-info:only-child {
    grid-column: 1 / -1;
}
.contact-person-info h3 {
    font-size: 32px;
    margin-bottom: 16px;
    color: var(--text-dark);
}
.contact-person-name {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 16px;
}
.contact-person-info p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 24px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}
.contact-person-qr {
    text-align: center;
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow);
}
.contact-person-qr h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text-dark);
}
.contact-person-qr img {
    max-width: 200px;
    border-radius: 12px;
    margin-bottom: 16px;
}
.contact-person-qr p {
    color: var(--text-light);
    font-size: 14px;
}

/* 品牌矩阵 */
.brands-section {
    background: var(--bg-light);
    padding: 100px 0;
}
.brands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}
.brand-card {
    background: white;
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0,0,0,0.06);
    transition: var(--transition);
}
.brand-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.1);
}
.brand-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(26,115,232,0.1), rgba(13,71,161,0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 32px;
    color: var(--primary-color);
}
.brand-card h3 {
    font-size: 22px;
    margin-bottom: 8px;
    color: var(--text-dark);
}
.brand-tag {
    display: inline-block;
    padding: 4px 14px;
    background: var(--primary-color);
    color: white;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}
.brand-card > p:last-child {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
}

/* 404 */
.not-found {
    background: white;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 响应式补充 */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
    }
    .article-sidebar {
        position: static;
    }
    .contact-person-grid {
        grid-template-columns: 1fr;
    }
    .contact-person-info:only-child {
        grid-column: auto;
    }
}
@media (max-width: 768px) {
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    .stat-box .stat-number {
        font-size: 28px;
    }
    .news-list-grid {
        grid-template-columns: 1fr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .article-cover img {
        height: 240px;
    }
}