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

:root {
    --primary-color: #0066cc;
    --secondary-color: #ff9900;
    --accent-color: #00cc66;
    --text-color: #333333;
    --light-text: #666666;
    --bg-color: #ffffff;
    --light-bg: #f8f9fa;
    --border-color: #e0e0e0;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    font-size: clamp(15px, 1.6vw, 16px);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-tap-highlight-color: transparent;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 clamp(12px, 3vw, 24px);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary-color);
}

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

/* 头部样式 */
.site-header {
    background-color: var(--bg-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo img {
    height: 50px;
}

.main-nav ul {
    display: flex;
    list-style: none;
}

.nav-item {
    margin-left: 30px;
}

.nav-item a {
    color: var(--text-color);
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* 图片加载失败回退 */
img {
    max-width: 100%;
    height: auto;
}
img[src=""], img:not([src]) {
    display: none;
}
.site-main {
    min-height: calc(100vh - 200px);
}

/* 页面头部 */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #004499 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.breadcrumb {
    font-size: 0.88em;
    margin-bottom: 12px;
    opacity: 0.85;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
}

.breadcrumb a:hover {
    color: #fff;
    text-decoration: underline;
}

.breadcrumb span {
    color: rgba(255, 255, 255, 0.7);
}

.page-header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

/* 新闻详情页：标题下方的发布日期+浏览量 */
.news-detail-sub {
    margin-top: 8px;
    display: flex;
    justify-content: center;
    gap: 20px;
    font-size: 0.88em;
    opacity: 0.72;
}

.news-detail-date,
.news-detail-views {
    color: inherit;
}

.page-header p {
    font-size: 1.2em;
    opacity: 0.9;
}

.breadcrumb {
    margin-bottom: 20px;
    font-size: 0.9em;
}

.breadcrumb a {
    color: white;
    opacity: 0.8;
}

.breadcrumb a:hover {
    opacity: 1;
}

.breadcrumb span {
    opacity: 0.6;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 16px;
}

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

.btn-primary:hover {
    background-color: #0052a3;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

.btn-secondary:hover {
    background-color: #e68a00;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-link {
    background: none;
    color: var(--primary-color);
    padding: 0;
}

.btn-link:hover {
    text-decoration: underline;
}

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
}

/* 区块标题 */
.section-title {
    text-align: center;
    font-size: 1.6em;
    margin-bottom: 20px;
    color: var(--text-color);
    position: relative;
}

.section-title:after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 10px auto 0;
}

/* 轮播图样式 */
.slider-section {
    width: 100%;
    position: relative;
    overflow: hidden;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 400px;
}

.slider-wrapper {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.slide {
    position: relative;
    min-width: 100%;
    height: 400px;
    display: none;
}

.slide.active {
    display: block;
}

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

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    z-index: 10;
    background: rgba(0, 0, 0, 0.5);
    padding: 40px 60px;
    border-radius: 10px;
}

.slide-content h2 {
    font-size: 2.5em;
    margin-bottom: 15px;
}

.slide-content p {
    font-size: 1.2em;
    margin-bottom: 25px;
    opacity: 0.9;
}

.slider-prev,
.slider-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.8);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 20;
    transition: all 0.3s ease;
}

.slider-prev:hover,
.slider-next:hover {
    background: white;
    transform: translateY(-50%) scale(1.1);
}

.slider-prev {
    left: 20px;
}

.slider-next {
    right: 20px;
}

.slider-prev span,
.slider-next span {
    display: block;
    width: 15px;
    height: 15px;
    border-left: 3px solid var(--primary-color);
    border-bottom: 3px solid var(--primary-color);
    margin: 0 auto;
}

.slider-prev span {
    transform: rotate(45deg);
    margin-left: 17px;
}

.slider-next span {
    transform: rotate(-135deg);
    margin-left: 14px;
}

.slider-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 20;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot:hover,
.dot.active {
    background: white;
}

/* 首页英雄区块 */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0;
}

.hero-content {
    display: flex;
    flex-direction: column;
    text-align: center;
}

.hero-content h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.2em;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}
}

.hero-buttons .btn {
    color: white;
}

/* Slogan 首屏黄金位 */
.slogan-section {
    background: linear-gradient(135deg, #003d7a 0%, #0066cc 100%);
    padding: 40px 0;
    text-align: center;
    color: #fff;
}
.slogan-text {
    font-size: 1.5em;
    font-weight: 700;
    letter-spacing: 0.02em;
    margin: 0 0 10px 0;
    line-height: 1.5;
}
.slogan-sub {
    font-size: 1.0em;
    opacity: 0.85;
    margin: 0 0 20px 0;
    font-weight: 400;
}
.slogan-btn {
    display: inline-block;
    background: #ff9900;
    color: #fff;
    font-size: 1.0em;
    font-weight: 600;
    padding: 12px 36px;
    border-radius: 30px;
    text-decoration: none;
    transition: background 0.3s, transform 0.2s;
    border: none;
    cursor: pointer;
}
.slogan-btn:hover {
    background: #e68a00;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(255,153,0,0.4);
}
@media (max-width: 768px) {
    .slogan-text { font-size: 1.15em; }
    .slogan-section { padding: 28px 16px; }
    .slogan-btn { padding: 10px 28px; font-size: 0.95em; }
}

/* 特性区块 */
.features-section {
    padding: 60px 0 12px 0;
    background: linear-gradient(180deg, #f8fafc 0%, #fff 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.feature-card {
    background: #fff;
    padding: 36px 30px 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 2px 16px rgba(0,0,0,0.05);
    transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 36px rgba(0,102,204,0.12);
    border-color: rgba(0,102,204,0.12);
}

.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 22px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon img {
    width: 64px;
    height: 64px;
    object-fit: contain;
}

.feature-icon svg {
    width: 56px;
    height: 56px;
    color: #0066cc;
    transition: color 0.3s ease;
}

.feature-card:hover .feature-icon svg {
    color: #0052a3;
}

.feature-emoji {
    font-size: 2.6em;
    line-height: 1;
    display: block;
}

.feature-card h3 {
    font-size: 1.1em;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 0.9em;
    color: #777;
    line-height: 1.7;
}

@media (max-width: 768px) {
    .feature-card {
        padding: 28px 20px 24px;
    }
}

/* 产品预览区块 */
.products-preview-section {
    padding: 12px 0 60px 0;
    background: #fff;
}

.section-header {
    text-align: center;
    margin-bottom: 30px;
}

.section-header .section-title {
    margin-bottom: 8px;
}

.section-subtitle {
    max-width: min(520px, 90vw);
    text-align: center;
    margin: 0 auto var(--section-gap);
}

.products-preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 50px;
}

.product-preview-card {
    display: block;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 2px 16px rgba(0,0,0,0.07);
    transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
}

.product-preview-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0,102,204,0.15);
}

.ppc-image {
    height: 220px;
    overflow: hidden;
    background: #f0f4f8;
    position: relative;
}

.ppc-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-preview-card:hover .ppc-image img {
    transform: scale(1.08);
}

.ppc-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(to top, rgba(255,255,255,0.3), transparent);
    pointer-events: none;
}

.ppc-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #e8f0fe 0%, #d4e4fc 100%);
}

.ppc-placeholder span {
    font-size: 3em;
    font-weight: 700;
    color: rgba(0,102,204,0.18);
}

.ppc-body {
    padding: 22px 24px 20px;
}

.ppc-tag {
    display: inline-block;
    padding: 3px 12px;
    background: rgba(0,102,204,0.08);
    color: #0066cc;
    border-radius: 20px;
    font-size: 0.78em;
    font-weight: 500;
    margin-bottom: 10px;
}

.ppc-title {
    font-size: 1.12em;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.ppc-desc {
    font-size: 0.88em;
    color: #777;
    line-height: 1.6;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.8em;
}

.ppc-arrow {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.88em;
    font-weight: 500;
    color: #0066cc;
    transition: gap 0.25s ease;
}

.product-preview-card:hover .ppc-arrow {
    gap: 8px;
}

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

/* 新闻预览区块 (首页) */
.news-preview-section {
    padding: 60px 0;
    background-color: var(--light-bg);
}

.news-preview-section .news-list-v {
    margin-bottom: 40px;
}

.news-card {
    display: flex;
    gap: 20px;
    padding: 20px;
    background: white;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

.news-date {
    min-width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #004499 100%);
    color: white;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.news-date .day {
    font-size: 2em;
    font-weight: bold;
}

.news-date .month {
    font-size: 0.9em;
}

.news-content h3 {
    margin-bottom: 10px;
}

.news-content h3 a {
    color: var(--text-color);
}

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

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

/* CTA区块 */
.cta-section {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #ff6600 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.cta-section h2 {
    margin-bottom: 15px;
}

.cta-section p {
    margin-bottom: 30px;
    opacity: 0.9;
}

.cta-section .btn {
    background-color: white;
    color: var(--secondary-color);
}

.cta-section .btn:hover {
    background-color: var(--bg-color);
}

/* 产品列表页面 */
.products-section {
    padding: 60px 0;
}

.products-filter-bar {
    margin-bottom: 30px;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.filter-tabs {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 10px 24px;
    border: none;
    background: var(--light-bg);
    color: var(--text-color);
    border-radius: 25px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.filter-tab.active,
.filter-tab:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0052a3 100%);
    color: white;
}

.products-wrapper {
    display: grid;
    grid-template-columns: 1fr minmax(240px, 300px);
    gap: 30px;
    align-items: start;
}

.products-main {
    width: 100%;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.product-card {
    display: block;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    text-align: center;
    text-decoration: none;
    color: inherit;
}

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

.product-image-wrapper {
    position: relative;
    overflow: hidden;
}

.product-image {
    height: 200px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
    background: transparent;
}

.product-card:hover .product-image img {
    transform: scale(1.08);
}

.product-category-tag {
    position: absolute;
    top: 15px;
    left: 15px;
    padding: 5px 12px;
    background: rgba(0, 102, 204, 0.9);
    color: white;
    border-radius: 20px;
    font-size: 0.8em;
}

.product-info {
    padding: 20px;
    text-align: center;
}

.product-name {
    font-size: 1.2em;
    margin-bottom: 10px;
    color: var(--text-color);
    text-align: center;
}

.product-brief {
    color: var(--light-text);
    font-size: 0.95em;
    line-height: 1.6;
    margin-bottom: 15px;
}

.product-feature-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 15px;
}

.feature-item {
    padding: 4px 10px;
    background: var(--light-bg);
    color: var(--light-text);
    border-radius: 4px;
    font-size: 0.8em;
}

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

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

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

.btn-block {
    width: 100%;
}

.products-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar-section {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.sidebar-title {
    font-size: 1.1em;
    color: var(--text-color);
    margin-bottom: 15px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
    position: relative;
}

.category-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 10px;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.3s ease;
}

.category-item:hover,
.category-item.active {
    background: var(--light-bg);
}

.category-item.active .category-name {
    color: var(--primary-color);
    font-weight: 500;
}

.category-name {
    color: var(--text-color);
    font-size: 0.95em;
}

.category-count {
    background: var(--light-bg);
    color: var(--light-text);
    padding: 2px 10px;
    border-radius: 10px;
    font-size: 0.8em;
}

.hot-product-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.hot-product-item {
    display: flex;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.hot-product-item:last-child {
    border-bottom: none;
}

.hot-product-item a {
    display: flex;
    gap: 12px;
    align-items: center;
    text-decoration: none;
    width: 100%;
}

.hot-product-item img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    border-radius: 4px;
    flex-shrink: 0;
    background: #f8f9fb;
}

.hot-product-name {
    color: var(--text-color);
    font-size: 0.9em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.hot-product-item:hover .hot-product-name {
    color: var(--primary-color);
}

.contact-box {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0052a3 100%) !important;
    color: white;
}

.contact-box .sidebar-title {
    border-bottom-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.contact-phone {
    font-size: 1.5em;
    font-weight: bold;
    margin-bottom: 8px;
    color: white;
}

.contact-hint {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9em;
    margin-bottom: 15px;
}

.contact-box .btn-primary {
    background: white !important;
    color: var(--primary-color) !important;
}

.contact-box .btn-primary:hover {
    background: var(--light-bg) !important;
}

.old-product-category {
    color: var(--primary-color);
    font-size: 0.9em;
    margin-bottom: 10px;
}

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

.old-product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.old-feature-tag {
    background-color: var(--light-bg);
    color: var(--light-text);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85em;
}

/* 产品详情页面 */
.product-detail-section {
    padding: 60px 0;
}

.product-detail-layout {
    display: grid;
    grid-template-columns: 1fr minmax(220px, 280px);
    gap: 30px;
    align-items: start;
}

.product-detail-main {
    min-width: 0;
}

.product-detail-wrapper {
    max-width: 1200px;
    margin: 0 auto;
}

.product-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.product-detail-sidebar {
    min-width: 0;
}

.product-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.product-nav-item {
    margin-bottom: 8px;
}

.product-nav-item a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 6px;
    color: var(--text-color);
    transition: all 0.3s ease;
    text-decoration: none;
}

.product-nav-item a:hover {
    background: var(--light-bg);
    color: var(--primary-color);
}

.product-nav-item.current a {
    background: #e8f4fd;
    color: var(--primary-color);
    font-weight: 600;
}

.product-nav-item img {
    width: 50px;
    height: 50px;
    border-radius: 4px;
    object-fit: cover;
    flex-shrink: 0;
}

.product-nav-name {
    font-size: 0.9em;
    line-height: 1.4;
}

.product-gallery {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.gallery-main {
    margin-bottom: 20px;
    border-radius: 8px;
    overflow: hidden;
    background: #f8f9fa;
}

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

.gallery-thumbs {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.thumb-item {
    width: 80px;
    height: 80px;
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.3s ease;
}

.thumb-item.active,
.thumb-item:hover {
    border-color: var(--primary-color);
}

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

.product-detail-section .product-info {
    display: flex;
    flex-direction: column;
    max-height: 400px;
    overflow-y: auto;
}

.product-title {
    font-size: 2em;
    margin-bottom: 15px;
    color: var(--text-color);
}

.product-category {
    color: var(--primary-color);
    font-size: 1em;
    margin-bottom: 20px;
}

.product-brief {
    margin-bottom: 25px;
}

.product-brief h3 {
    color: var(--text-color);
    margin-bottom: 10px;
    font-size: 1.2em;
}

.product-brief p {
    color: var(--light-text);
    line-height: 1.8;
    margin-bottom: 10px;
}

.product-brief-content {
    line-height: 1.8;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.product-feature-tags {
    margin-bottom: 25px;
}

.product-feature-tags h3 {
    color: var(--text-color);
    margin-bottom: 15px;
    font-size: 1.2em;
}

.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tags-container .feature-tag {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0052a3 100%);
    color: white;
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 0.9em;
}

.product-contact-box {
    background: var(--light-bg);
    padding: 25px;
    border-radius: 8px;
    margin-top: auto;
}

.contact-info {
    margin-bottom: 20px;
}

.contact-info p {
    color: var(--text-color);
    margin-bottom: 8px;
}

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

.product-content {
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 40px;
    overflow: hidden;
}

.content-tabs {
    background: var(--light-bg);
}

.tab-nav {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    background: #fff;
}

.tab-item {
    display: inline-block;
    padding: 14px 30px;
    color: var(--text-color);
    font-size: 1em;
    font-weight: 600;
    border-bottom: 3px solid var(--primary-color);
    margin-bottom: -1px;
}

.tab-panel {
    padding: 30px 0;
}

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


.tab-btn {
    padding: 15px 30px;
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--light-text);
    font-size: 16px;
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
}

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

.tab-btn.active:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-color);
}

.tab-content {
    display: none;
    padding: 30px;
}

.tab-content.active {
    display: block;
}

.tab-content h3 {
    color: var(--text-color);
    margin-bottom: 20px;
}

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

.tab-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 20px auto;
    border-radius: 4px;
}

.tab-content h2 {
    color: var(--text-color);
    margin: 25px 0 15px;
    font-size: 1.6em;
}

.tab-content h3 {
    color: var(--text-color);
    margin-bottom: 20px;
}

.tab-content ul,
.tab-content ol {
    margin: 0 0 15px 20px;
    color: var(--light-text);
    line-height: 1.8;
}

.tab-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
}

.tab-content table td,
.tab-content table th {
    border: 1px solid var(--border-color);
    padding: 10px 15px;
    text-align: left;
}

.tab-content table th {
    background: var(--light-bg);
    font-weight: 500;
}

.tab-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding: 15px 20px;
    margin: 15px 0;
    background: var(--light-bg);
    color: var(--light-text);
}

.tab-content a {
    color: var(--primary-color);
    text-decoration: underline;
}

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

.params-table tr {
    border-bottom: 1px solid var(--border-color);
}

.params-table tr:last-child {
    border-bottom: none;
}

.param-name {
    width: 30%;
    padding: 15px 20px;
    background: var(--light-bg);
    font-weight: 500;
    color: var(--text-color);
}

.param-value {
    padding: 15px 20px;
    color: var(--light-text);
}

.tab-content .faq-list {
    margin: 0;
    max-width: 100%;
}

.tab-content .faq-item {
    margin-bottom: 20px;
    padding: 20px;
    background: var(--light-bg);
    border-radius: 8px;
}

.tab-content .faq-question {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 12px;
    cursor: default;
}

.tab-content .faq-answer {
    color: var(--light-text);
    line-height: 1.6;
}

.related-products {
    background: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: var(--shadow);
}

.related-products h3 {
    color: var(--text-color);
    margin-bottom: 25px;
    font-size: 1.4em;
}

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

.related-product-card {
    background: var(--light-bg);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s ease;
}

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

.related-product-card a {
    text-decoration: none;
}

.related-product-card img {
    width: 100%;
    height: 150px;
    object-fit: contain;
    background: #f8f9fb;
}

.related-product-card h4 {
    padding: 15px 15px 5px;
    color: var(--text-color);
    font-size: 1em;
    margin: 0;
}

.related-category {
    padding: 0 15px 15px;
    color: var(--light-text);
    font-size: 0.9em;
    margin: 0;
}

/* 新闻列表页面 */
.news-section {
    padding: 60px 0;
}

.news-wrapper {
    display: grid;
    grid-template-columns: 1fr minmax(240px, 300px);
    gap: 30px;
}

.news-main {
    width: 100%;
}

.news-filter-bar {
    background: white;
    border-radius: 8px;
    padding: 15px 20px;
    margin-bottom: 25px;
    box-shadow: var(--shadow);
}

.filter-tabs {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 8px 22px;
    border: none;
    background: var(--light-bg);
    color: var(--text-color);
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.filter-tab.active,
.filter-tab:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0052a3 100%);
    color: white;
}

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

.news-featured {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.featured-image {
    overflow: hidden;
}

.featured-image img {
    width: 100%;
    height: 100%;
    min-height: 280px;
    object-fit: cover;
}

.featured-content {
    padding: 30px;
    display: flex;
    flex-direction: column;
}

.featured-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.meta-category {
    background: var(--primary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.85em;
}

.meta-date {
    color: var(--light-text);
    font-size: 0.9em;
}

.featured-content h2 {
    font-size: 1.6em;
    margin-bottom: 15px;
    color: var(--text-color);
    line-height: 1.4;
}

.featured-content h2 a {
    color: var(--text-color);
    text-decoration: none;
}

.featured-content h2 a:hover {
    color: var(--primary-color);
}

.featured-summary {
    color: var(--light-text);
    line-height: 1.7;
    margin-bottom: 20px;
    flex-grow: 1;
}

.read-more {
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #0052a3;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.news-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

.card-image {
    height: 180px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.card-content {
    padding: 20px;
}

.card-meta {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

.card-category {
    background: var(--light-bg);
    color: var(--primary-color);
    padding: 3px 10px;
    border-radius: 10px;
    font-size: 0.8em;
}

.card-date {
    color: var(--light-text);
    font-size: 0.85em;
}

.card-content h3 {
    font-size: 1.1em;
    margin-bottom: 10px;
    color: var(--text-color);
    line-height: 1.4;
}

.card-content h3 a {
    color: var(--text-color);
    text-decoration: none;
}

.card-content h3 a:hover {
    color: var(--primary-color);
}

.card-summary {
    color: var(--light-text);
    font-size: 0.9em;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-sidebar .sidebar-section {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.news-sidebar .sidebar-title {
    font-size: 1.1em;
    color: var(--text-color);
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
    position: relative;
}

.news-sidebar .category-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.news-sidebar .category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 11px 10px;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.3s ease;
}

.news-sidebar .category-item:hover,
.news-sidebar .category-item.active {
    background: var(--light-bg);
}

.news-sidebar .category-item.active .category-name {
    color: var(--primary-color);
    font-weight: 500;
}

.news-sidebar .category-name {
    color: var(--text-color);
    font-size: 0.95em;
}

.news-sidebar .category-count {
    background: var(--light-bg);
    color: var(--light-text);
    padding: 2px 10px;
    border-radius: 10px;
    font-size: 0.8em;
}

.hot-news-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.hot-news-item {
    padding: 10px 0;
    border-bottom: 1px dashed var(--border-color);
}

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

.hot-news-item a {
    display: flex;
    gap: 12px;
    align-items: center;
    text-decoration: none;
}

.hot-number {
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85em;
    font-weight: 600;
    flex-shrink: 0;
}

.hot-title {
    color: var(--text-color);
    font-size: 0.9em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.hot-news-item:hover .hot-title {
    color: var(--primary-color);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-item {
    padding: 6px 14px;
    background: var(--light-bg);
    color: var(--text-color);
    border-radius: 20px;
    font-size: 0.85em;
    text-decoration: none;
    transition: all 0.3s ease;
}

.tag-item:hover {
    background: var(--primary-color);
    color: white;
}

.news-sidebar .contact-box {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0052a3 100%) !important;
    color: white;
}

.news-sidebar .contact-box .sidebar-title {
    border-bottom-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.news-sidebar .contact-box .contact-info {
    color: white;
    line-height: 1.8;
    font-size: 0.95em;
}

.old-news-list {
    max-width: min(900px, 100%);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.faq-list {
    max-width: min(800px, 100%);
    margin: 0 auto;
}

.timeline {
    max-width: min(800px, 100%);
    margin: 40px auto 0;
    position: relative;
}

.project-detail {
    max-width: min(900px, 100%);
    margin: 0 auto;
}

.old-news-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 30px;
    padding: 30px;
    background: white;
    border-radius: 8px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

.news-image img {
    border-radius: 8px;
    height: 200px;
    object-fit: cover;
}

.news-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 0.9em;
}

.news-date,
.news-category {
    color: var(--light-text);
}

.news-content h2 {
    margin-bottom: 15px;
}

.news-content h2 a {
    color: var(--text-color);
}

.news-content h2 a:hover {
    color: var(--primary-color);
}

.news-summary {
    color: var(--light-text);
    margin-bottom: 15px;
}

/* 新闻详情页面 */
.news-detail-section {
    padding: 60px 0;
}

.news-detail {
    max-width: min(800px, 100%);
    margin: 0 auto;
}

.news-detail .news-meta {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    gap: 15px;
}

.news-meta-footer {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    font-size: 0.85em;
    color: #999;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.news-pub-date,
.news-pub-author,
.news-pub-category {
    color: #999;
}

.news-body {
    line-height: 1.8;
    margin-bottom: 30px;
}

.news-body p {
    margin-bottom: 15px;
    text-indent: 2em;
    line-height: 1.8;
}

.news-featured-image {
    margin-bottom: 25px;
    border-radius: 8px;
    overflow: hidden;
}

.news-featured-image img {
    width: 100%;
    height: auto;
    display: block;
}

.news-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.tag {
    background-color: var(--light-bg);
    color: var(--light-text);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9em;
}

.news-navigation {
    display: flex;
    justify-content: space-between;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

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

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

/* 技术支持页面 */
.support-section {
    padding: 60px 0;
}

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

.support-card {
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

.support-icon img,
.support-icon svg {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    color: var(--primary-color);
    display: block;
}

.support-card h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

.support-contact {
    color: var(--secondary-color);
    font-weight: 500;
    margin-top: 10px;
}

.faq-section {
    padding: 60px 0;
    background-color: var(--light-bg);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 15px;
    box-shadow: var(--shadow);
}

.faq-question {
    color: var(--primary-color);
    margin-bottom: 10px;
    cursor: pointer;
}

.faq-answer {
    color: var(--light-text);
    line-height: 1.6;
}

.support-process-section {
    padding: 60px 0;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    text-align: center;
}

.process-step {
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #004499 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5em;
    font-weight: bold;
    margin: 0 auto 20px;
}

.process-step h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

.process-step p {
    color: var(--light-text);
}

/* 关于我们页面 */
.about-intro-section {
    padding: 60px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.about-text h2 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

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

.about-image img {
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.about-culture-section {
    padding: 60px 0;
    background-color: var(--light-bg);
}

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

.culture-card {
    background: white;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: var(--shadow);
}

.culture-card h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.culture-icon {
    margin-bottom: 20px;
}

.culture-icon img {
    width: 64px;
    height: 64px;
    object-fit: contain;
}

.culture-icon svg {
    width: 64px;
    height: 64px;
    color: var(--primary-color);
}

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

.about-history-section {
    padding: 60px 0;
}

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

.timeline-item {
    display: flex;
    gap: 20px;
    padding: 20px;
    margin-bottom: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.timeline-year {
    min-width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #004499 100%);
    color: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5em;
    font-weight: bold;
}

.timeline-content h3 {
    margin-bottom: 10px;
    color: var(--text-color);
}

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

.about-team-section {
    padding: 60px 0;
    background-color: var(--light-bg);
}

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

.team-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

.team-photo {
    height: 250px;
    overflow: hidden;
}

.team-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-info {
    padding: 20px;
    text-align: center;
}

.team-info h3 {
    margin-bottom: 5px;
    color: var(--text-color);
}

.team-position {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.team-bio {
    color: var(--light-text);
    font-size: 0.9em;
}

.about-stats-section {
    padding: 60px 0;
}

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

.stat-card {
    padding: 30px;
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.stat-number {
    font-size: 3em;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-label {
    color: var(--light-text);
    font-size: 1.1em;
}

/* 联系我们页面 */
.about-contact-section {
    padding: 60px 0;
    background: var(--light-bg);
}

.about-contact-section .contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.contact-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: white;
    padding: 28px 24px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.contact-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.contact-icon {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    background: var(--primary-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon svg {
    width: 28px;
    height: 28px;
    color: #fff;
}

.contact-body h3 {
    font-size: 1em;
    color: #333;
    margin-bottom: 6px;
}

.contact-body p {
    color: var(--light-text);
    font-size: 0.9em;
    line-height: 1.5;
}

.contact-body a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-body a:hover {
    text-decoration: underline;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-color);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

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

.map-section {
    padding: 60px 0;
    background-color: var(--light-bg);
}

.map-container {
    height: 400px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

#map {
    width: 100%;
    height: 100%;
    background-color: #e0e0e0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light-text);
}

/* 项目方案列表 - 大长条布局 */
.projects-section {
    padding: 40px 0 60px;
}

.projects-filter-bar {
    margin-bottom: 30px;
}

.projects-wrapper {
    display: grid;
    grid-template-columns: 1fr minmax(240px, 300px);
    gap: 30px;
}

.projects-main {
    min-width: 0;
}

.project-list-v {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.project-item-h {
    display: flex;
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.project-item-h:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.project-item-image {
    flex: 0 0 280px;
    position: relative;
    overflow: hidden;
    background: #f0f0f0;
}

.project-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 200px;
}

.project-category-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--primary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.8em;
    font-weight: 500;
}

.project-item-body {
    flex: 1;
    padding: 25px 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.project-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.project-item-title {
    font-size: 1.3em;
    margin: 0;
    flex: 1;
    margin-right: 15px;
}

.project-item-title a {
    color: var(--text-color);
    transition: color 0.3s ease;
}

.project-item-title a:hover {
    color: var(--primary-color);
}

.project-item-date {
    color: #999;
    font-size: 0.85em;
    white-space: nowrap;
}

.project-item-summary {
    color: var(--light-text);
    line-height: 1.6;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-item-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
}

.tag-badge {
    background: #e8f4fd;
    color: var(--primary-color);
    padding: 3px 10px;
    border-radius: 3px;
    font-size: 0.8em;
}

.read-more-link {
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.95em;
    align-self: flex-start;
    transition: color 0.3s ease;
}

.read-more-link:hover {
    color: var(--secondary-color);
}

.projects-sidebar {
    min-width: 0;
}

.projects-empty {
    text-align: center;
    padding: 60px 20px;
    color: #999;
    background: white;
    border-radius: 8px;
}

/* 项目详情页 */
.project-detail-section {
    padding: 50px 0 60px;
}

.project-detail {
    max-width: 900px;
    margin: 0 auto;
}

.project-detail-header {
    display: flex;
    gap: 30px;
    margin-bottom: 35px;
    background: white;
    border-radius: 8px;
    padding: 25px;
    box-shadow: var(--shadow);
}

.project-detail-image {
    flex: 0 0 350px;
    border-radius: 6px;
    overflow: hidden;
}

.project-detail-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.project-detail-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-detail-category {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 5px 14px;
    border-radius: 4px;
    font-size: 0.9em;
    margin-bottom: 15px;
    align-self: flex-start;
}

.project-detail-summary {
    color: var(--light-text);
    line-height: 1.7;
    font-size: 1.05em;
    margin-bottom: 20px;
}

.project-detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.project-detail-body {
    background: white;
    border-radius: 8px;
    padding: 35px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.project-detail-body img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 20px auto;
    border-radius: 4px;
}

.project-detail-body h2,
.project-detail-body h3 {
    color: var(--text-color);
    margin: 25px 0 15px;
}

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

.project-detail-body ul,
.project-detail-body ol {
    margin: 0 0 15px 20px;
    color: var(--light-text);
    line-height: 1.8;
}

.project-detail-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
}

.project-detail-body table td,
.project-detail-body table th {
    border: 1px solid var(--border-color);
    padding: 10px 15px;
}

.project-detail-body table th {
    background: var(--light-bg);
}

.project-detail-footer {
    display: flex;
    gap: 15px;
    justify-content: center;
}

/* 新闻列表 - 大长条布局 */
.news-section {
    padding: 40px 0 60px;
}

.news-filter-bar {
    margin-bottom: 30px;
}

.news-wrapper {
    display: grid;
    grid-template-columns: 1fr minmax(240px, 300px);
    gap: 30px;
}

.news-main {
    min-width: 0;
}

.news-list-v {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-item-h {
    display: flex;
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.news-item-h:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.news-item-image {
    flex: 0 0 280px;
    position: relative;
    overflow: hidden;
    background: #f0f0f0;
}

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

.news-category-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--secondary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.8em;
    font-weight: 500;
}

.news-item-body {
    flex: 1;
    padding: 25px 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.news-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.news-item-title {
    font-size: 1.3em;
    margin: 0;
    flex: 1;
    margin-right: 15px;
}

.news-item-title a {
    color: var(--text-color);
    transition: color 0.3s ease;
}

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

.news-item-date {
    color: #999;
    font-size: 0.85em;
    white-space: nowrap;
}

.news-item-summary {
    color: var(--light-text);
    line-height: 1.6;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-item-meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    font-size: 0.85em;
}

.news-item-author {
    color: #999;
}

.news-item-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.news-item-tags .tag-badge {
    background: #fef3e6;
    color: var(--secondary-color);
}

.news-empty {
    text-align: center;
    padding: 60px 20px;
    color: #999;
    background: white;
    border-radius: 8px;
}

.news-sidebar {
    min-width: 0;
}

/* 通用筛选标签 */
.filter-tabs {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 10px 22px;
    border: 1px solid var(--border-color);
    background: white;
    color: var(--light-text);
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.95em;
    transition: all 0.3s ease;
}

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

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
    padding: 10px 24px;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

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

/* 页脚样式 */
.site-footer {
    background-color: #2c3e50;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

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

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

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-section ul li a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 24px;
}

.social-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.85);
}

.social-qrcode {
    width: 100px;
    height: 100px;
    border-radius: 6px;
    background: #fff;
    padding: 4px;
    object-fit: contain;
}

.social-text {
    font-size: 0.85em;
    color: rgba(255, 255, 255, 0.75);
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom a:hover {
    color: white;
}

.footer-filing {
    margin-top: 8px;
    font-size: 13px;
}

.footer-filing a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-filing a:hover {
    color: white;
    text-decoration: underline;
}

.filing-sep {
    color: rgba(255, 255, 255, 0.3);
    margin: 0 10px;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    padding: 30px 0 10px;
    flex-wrap: wrap;
}

.page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    background: #fff;
    color: #333;
    text-decoration: none;
    font-size: 0.9em;
    transition: all 0.2s;
}

.page-link:hover {
    border-color: #0066cc;
    color: #0066cc;
    background: #f0f6ff;
}

.page-link.active {
    background: #0066cc;
    color: #fff;
    border-color: #0066cc;
    font-weight: 600;
}

.page-prev,
.page-next {
    font-weight: 500;
}