/* ========================================
   上海莱菲恩检测技术有限公司 - 海洋蓝主题样式
   ======================================== */

/* 基础变量 - 海洋蓝色系 */
:root {
    --primary-color: #0066CC;
    --primary-dark: #004C99;
    --primary-light: #3399FF;
    --accent-color: #00A8E8;
    --ocean-blue: #0077B6;
    --sky-blue: #90E0EF;
    --light-blue: #CAF0F8;
    --text-color: #1a1a2e;
    --text-light: #4a4a6a;
    --text-muted: #7a7a9a;
    --bg-color: #f0f7ff;
    --white: #ffffff;
    --border-color: #e0ecff;
    --shadow: 0 4px 20px rgba(0, 102, 204, 0.1);
    --shadow-hover: 0 8px 30px rgba(0, 102, 204, 0.2);
    --transition: all 0.3s ease;
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-color);
}

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

/* 顶部信息栏 */
.top-bar {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--ocean-blue) 100%);
    color: var(--white);
    padding: 10px 0;
    font-size: 14px;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 导航栏 */
.main-header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: relative;
    z-index: 100;
    transition: var(--transition);
}

.main-header.sticky {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { transform: translateY(-100%); }
    to { transform: translateY(0); }
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 68px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 44px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
}

.desktop-nav {
    display: flex;
    gap: 35px;
}

.desktop-nav a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    padding: 8px 0;
    position: relative;
    transition: var(--transition);
}

.desktop-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transition: var(--transition);
}

.desktop-nav a:hover,
.desktop-nav a.active {
    color: var(--primary-color);
}

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

.mobile-menu-btn {
    display: none !important;
}

/* 移动端导航 */
.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 20px;
}

.mobile-nav a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 16px;
    padding: 15px;
    border-radius: 8px;
    transition: var(--transition);
}

.mobile-nav a:hover,
.mobile-nav a.active {
    background: var(--light-blue);
    color: var(--primary-color);
}

/* Hero区域 */
.hero-section {
    position: relative;
    height: 650px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.92) 0%, rgba(0, 119, 182, 0.85) 100%);
}

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

.hero-text {
    max-width: 600px;
    color: var(--white);
}

.hero-tagline {
    font-size: 16px;
    color: var(--sky-blue);
    margin-bottom: 16px;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.hero-title {
    font-size: 52px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
}

.hero-desc {
    font-size: 17px;
    opacity: 0.95;
    margin-bottom: 35px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.hero-buttons .el-button--primary {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-light) 100%);
    border: none;
    padding: 15px 35px;
    font-size: 16px;
}

.hero-buttons .el-button--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 168, 232, 0.4);
}

.hero-buttons .el-button.is-plain {
    background: transparent;
    border-color: var(--white);
    color: var(--white);
    padding: 15px 35px;
    font-size: 16px;
}

.hero-buttons .el-button.is-plain:hover {
    background: var(--white);
    color: var(--primary-color);
}

/* 快捷入口 */
.quick-links {
    padding: 60px 0;
    background: var(--white);
}

.quick-card {
    display: block;
    background: linear-gradient(135deg, var(--white) 0%, var(--bg-color) 100%);
    padding: 35px 25px;
    border-radius: 16px;
    text-align: center;
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.quick-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--ocean-blue) 100%);
    border-color: transparent;
}

.quick-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--white);
    font-size: 28px;
}

.quick-card:hover .quick-icon {
    background: var(--white);
    color: var(--primary-color);
}

.quick-card h3 {
    font-size: 18px;
    color: var(--text-color);
    margin-bottom: 8px;
    transition: var(--transition);
}

.quick-card:hover h3 {
    color: var(--white);
}

.quick-card p {
    font-size: 14px;
    color: var(--text-light);
    transition: var(--transition);
}

.quick-card:hover p {
    color: rgba(255, 255, 255, 0.85);
}

/* 通用区块样式 */
section {
    padding: 80px 0;
}

.section-header {
    margin-bottom: 50px;
}

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

.section-tag {
    display: inline-block;
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 12px;
    text-transform: uppercase;
    background: var(--light-blue);
    padding: 6px 16px;
    border-radius: 20px;
}

.section-title {
    font-size: 38px;
    font-weight: 700;
    color: var(--text-color);
    line-height: 1.3;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 16px;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* 关于我们预览 */
.about-preview {
    background: var(--bg-color);
}

.about-images {
    position: relative;
}

.about-img-main {
    width: 100%;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.about-img-sub {
    position: absolute;
    bottom: -40px;
    right: -20px;
    width: 45%;
    border-radius: 12px;
    box-shadow: var(--shadow-hover);
    border: 4px solid var(--white);
}

.about-content {
    padding-left: 30px;
}

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

.stats-row {
    display: flex;
    gap: 40px;
    margin: 35px 0;
}

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

.stat-number {
    display: block;
    font-size: 42px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* 产品预览 */
.products-preview {
    background: var(--white);
}

.product-card {
    display: block;
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-decoration: none;
    margin-bottom: 24px;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.product-image {
    position: relative;
    overflow: hidden;
    height: 220px;
}

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

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

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 102, 204, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.product-info {
    padding: 24px;
}

.product-category {
    display: inline-block;
    font-size: 12px;
    color: var(--primary-color);
    background: var(--light-blue);
    padding: 5px 14px;
    border-radius: 20px;
    margin-bottom: 12px;
    font-weight: 500;
}

.product-info h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 10px;
}

.product-info p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    height: calc(1.6em * 2);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 技术优势 */
.features-section {
    background: var(--bg-color);
}

.feature-card {
    background: var(--white);
    padding: 45px 30px;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
    height: 100%;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.feature-icon {
    width: 85px;
    height: 85px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: var(--white);
    font-size: 36px;
}

.feature-card h3 {
    font-size: 20px;
    color: var(--text-color);
    margin-bottom: 15px;
}

.feature-card p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.7;
}

/* 新闻预览 */
.news-preview {
    background: var(--white);
}

.news-card {
    display: block;
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-decoration: none;
    height: 100%;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.news-image {
    height: 200px;
    overflow: hidden;
}

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

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

.news-content {
    padding: 25px;
}

.news-date {
    font-size: 13px;
    color: var(--primary-color);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-content h3 {
    font-size: 18px;
    color: var(--text-color);
    margin-bottom: 12px;
    line-height: 1.4;
}

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

/* 联系预览 */
.contact-preview {
    background: var(--bg-color);
}

.contact-info {
    padding-right: 30px;
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 25px;
    line-height: 1.8;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
}

.contact-item .el-icon {
    font-size: 24px;
    color: var(--primary-color);
    margin-top: 4px;
}

.contact-item .label {
    font-size: 13px;
    color: var(--text-muted);
    display: block;
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 16px;
    color: var(--text-color);
    font-weight: 500;
}

.contact-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.contact-image img {
    width: 100%;
    height: auto;
}

/* 页脚 */
.main-footer {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: var(--white);
    padding: 70px 0 30px;
}

.footer-brand {
    padding-right: 20px;
}

.footer-logo {
    height: 60px;
    margin-bottom: 20px;
}

.footer-brand p {
    opacity: 0.85;
    line-height: 1.8;
    font-size: 14px;
}

.footer-links h4 {
    font-size: 16px;
    margin-bottom: 25px;
    color: var(--white);
    font-weight: 600;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--sky-blue);
}

.footer-bottom {
    margin-top: 50px;
    padding-top: 25px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    text-align: center;
}

.footer-bottom p {
    opacity: 0.75;
    font-size: 13px;
    margin-bottom: 5px;
}

/* 页面横幅 */
.page-banner {
    position: relative;
    height: 350px;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
}

.page-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.9) 0%, rgba(0, 119, 182, 0.85) 100%);
}

.page-banner-content {
    position: relative;
    z-index: 2;
    color: var(--white);
}

.page-banner-content h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 10px;
}

.page-banner-content p {
    font-size: 18px;
    opacity: 0.9;
}

/* 产品页面 */
.category-tabs {
    text-align: center;
    margin-bottom: 50px;
}

.category-tabs .el-radio-group {
    flex-wrap: wrap;
    justify-content: center;
}

.category-tabs .el-radio-button__inner {
    padding: 12px 25px;
    font-size: 15px;
}

/* 产品详情弹窗 */
.product-dialog .el-dialog__header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--ocean-blue) 100%);
    padding: 20px;
    margin: 0;
}

.product-dialog .el-dialog__title {
    color: var(--white);
    font-weight: 600;
}

.product-detail .detail-image {
    width: 100%;
    border-radius: 12px;
    margin-bottom: 20px;
}

.detail-category {
    display: inline-block;
    background: var(--light-blue);
    color: var(--primary-color);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    margin-bottom: 15px;
}

.product-detail h2 {
    font-size: 24px;
    color: var(--text-color);
    margin-bottom: 15px;
}

.detail-desc {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 25px;
}

.detail-specs h4,
.detail-features h4 {
    font-size: 16px;
    color: var(--text-color);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
}

.detail-features ul {
    list-style: none;
    padding: 0;
}

.detail-features li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: var(--text-light);
}

.detail-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

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

.about-mission {
    margin-top: 35px;
}

.mission-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 20px;
    background: var(--bg-color);
    border-radius: 12px;
    margin-bottom: 15px;
}

.mission-item .el-icon {
    font-size: 28px;
    color: var(--primary-color);
}

.mission-item h4 {
    font-size: 16px;
    color: var(--text-color);
    margin-bottom: 6px;
}

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

/* 时间线 */
.timeline-section {
    background: var(--bg-color);
}

.timeline-section .el-timeline {
    max-width: 800px;
    margin: 0 auto;
}

.timeline-section .el-timeline-item__node {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
}

.timeline-section .el-timeline-item__timestamp {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 18px;
}

.timeline-section h4 {
    font-size: 18px;
    color: var(--text-color);
    margin-bottom: 8px;
}

.timeline-section p {
    color: var(--text-light);
    line-height: 1.7;
}

/* 资质认证 */
.cert-section {
    background: var(--white);
}

.cert-card {
    background: var(--bg-color);
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
    margin-bottom: 24px;
}

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

.cert-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--white);
}

.cert-card h3 {
    font-size: 18px;
    color: var(--text-color);
    margin-bottom: 10px;
}

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

.cert-image {
    margin-top: 50px;
    text-align: center;
}

.cert-image img {
    max-width: 100%;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

/* 新闻页面 */
.news-section {
    background: var(--bg-color);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.news-item {
    display: flex;
    gap: 25px;
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

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

.news-thumb {
    width: 280px;
    min-height: 200px;
    flex-shrink: 0;
}

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

.news-item .news-content {
    padding: 25px;
    flex: 1;
}

.news-item h3 {
    font-size: 20px;
    color: var(--text-color);
    margin-bottom: 12px;
}

.news-item p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 15px;
}

.pagination-wrapper {
    margin-top: 40px;
    display: flex;
    justify-content: center;
}

/* 侧边栏 */
.sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-widget {
    background: var(--white);
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: var(--shadow);
}

.sidebar-widget h4 {
    font-size: 18px;
    color: var(--text-color);
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-item {
    cursor: pointer;
}

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

.product-mini-item {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
    padding: 10px;
    border-radius: 10px;
    transition: var(--transition);
}

.product-mini-item:hover {
    background: var(--bg-color);
}

.product-mini-item img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
}

.product-mini-item span {
    font-size: 14px;
    color: var(--text-color);
}

.contact-mini p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    color: var(--text-light);
}

.contact-mini .el-button {
    width: 100%;
    margin-top: 15px;
}

/* 新闻详情 */
.news-detail .detail-image {
    width: 100%;
    border-radius: 12px;
    margin-bottom: 20px;
}

.news-meta {
    display: flex;
    gap: 25px;
    margin-bottom: 25px;
    color: var(--text-muted);
    font-size: 14px;
}

.news-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-body {
    color: var(--text-light);
    line-height: 1.8;
}

.news-body p {
    margin-bottom: 15px;
}

/* 联系页面 */
.contact-info-panel {
    padding-right: 20px;
}

.contact-info-panel > p {
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
}

.info-icon {
    width: 55px;
    height: 55px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 24px;
    flex-shrink: 0;
}

.info-content h4 {
    font-size: 15px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.info-content p {
    font-size: 16px;
    color: var(--text-color);
    font-weight: 500;
}

.business-hours {
    background: var(--bg-color);
    padding: 25px;
    border-radius: 12px;
}

.business-hours h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    color: var(--text-color);
    margin-bottom: 15px;
}

.business-hours p {
    color: var(--text-light);
    margin-bottom: 8px;
}

.contact-form-panel {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.contact-form-panel h3 {
    font-size: 24px;
    color: var(--text-color);
    margin-bottom: 8px;
}

.contact-form-panel > p {
    color: var(--text-light);
    margin-bottom: 25px;
}

/* 地图 */
.map-section {
    background: var(--bg-color);
    padding-bottom: 80px;
}

.map-container {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .top-bar .container {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }

    .desktop-nav {
        display: none;
    }

    .mobile-menu-btn {
        display: flex !important;
    }

    .hero-section {
        height: auto;
        padding: 100px 0;
    }

    .hero-title {
        font-size: 34px;
    }

    .hero-buttons {
        flex-direction: column;
    }

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

    .about-img-sub {
        display: none;
    }

    .about-content {
        padding-left: 0;
        margin-top: 30px;
    }

    .stats-row {
        flex-wrap: wrap;
        gap: 20px;
    }

    .stat-item {
        flex: 1;
        min-width: 80px;
    }

    .page-banner {
        height: 250px;
    }

    .page-banner-content h1 {
        font-size: 32px;
    }

    .news-item {
        flex-direction: column;
    }

    .news-thumb {
        width: 100%;
        height: 200px;
    }

    .sidebar {
        position: static;
        margin-top: 40px;
    }

    .contact-form-panel {
        padding: 25px;
        margin-top: 30px;
    }

    section {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .section-title {
        font-size: 24px;
    }

    .category-tabs .el-radio-button__inner {
        padding: 10px 15px;
        font-size: 13px;
    }
}

/* 平板适配 */
@media (min-width: 769px) and (max-width: 1024px) {
    .desktop-nav {
        gap: 25px;
    }

    .desktop-nav a {
        font-size: 14px;
    }

    .hero-title {
        font-size: 42px;
    }

    .about-content {
        padding-left: 0;
        margin-top: 30px;
    }
}

/* Element Plus 样式覆盖 */
.el-button--primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border: none;
}

.el-button--primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
}

.el-radio-button__original-radio:checked + .el-radio-button__inner {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-color: var(--primary-color);
}

.el-pagination.is-background .el-pager li:not(.is-disabled).is-active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
}

.el-tag {
    background: var(--light-blue);
    color: var(--primary-color);
    border-color: var(--border-color);
}

.el-collapse-item__header.is-active {
    color: var(--primary-color);
}

/* 工具类 */
.mt-4 {
    margin-top: 30px;
}

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

/* 文字 Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 16px;
    font-weight: 800;
    letter-spacing: -1px;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0,102,204,0.3);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
}

.logo-text .logo-main {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 0.5px;
}

.logo-text .logo-sub {
    font-size: 11px;
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.footer-logo-text {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}

.footer-logo-icon {
    width: 44px;
    height: 44px;
    background: rgba(255,255,255,0.15);
    border: 2px solid rgba(255,255,255,0.4);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 16px;
    font-weight: 800;
    letter-spacing: -1px;
    flex-shrink: 0;
}

.footer-logo-text .logo-text {
    display: flex;
    flex-direction: column;
}

.footer-logo-text .logo-main {
    font-size: 18px;
    font-weight: 700;
    color: var(--white);
}

.footer-logo-text .logo-sub {
    font-size: 11px;
    color: rgba(255,255,255,0.65);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* 文字截断 */
.news-content p {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.faq-section .el-collapse-item__content p {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* FAQ 卡片 */
.faq-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

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

.faq-card {
    background: var(--white);
    border-radius: 16px;
    padding: 28px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-left-color: var(--accent-color);
}

.faq-q {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.faq-num {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: var(--white);
    min-width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
}

.faq-q h4 {
    font-size: 15px;
    color: var(--text-color);
    font-weight: 600;
    line-height: 1.5;
    margin: 0;
    padding-top: 5px;
}

.faq-card .faq-a {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
    margin: 0;
    padding-left: 44px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 阅读更多按钮 */
.read-more-btn {
    display: inline-block;
    margin-top: 14px;
    padding: 5px 16px;
    background: var(--white);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
}

.news-card:hover .read-more-btn {
    background: var(--primary-color);
    color: var(--white);
}