:root {
    --primary: #0a4b96;
    --primary-dark: #063572;
    --primary-light: #1a6bc4;
    --secondary: #ff6b00;
    --secondary-dark: #e65c00;
    --text: #333333;
    --text-light: #666666;
    --text-muted: #999999;
    --bg: #ffffff;
    --bg-light: #f5f5f5;
    --bg-alt: #f0f4f8;
    --border: #e0e0e0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 8px 24px rgba(0, 0, 0, 0.18);
    --radius-sm: 3px;
    --radius-md: 5px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --space-xs: 5px;
    --space-sm: 10px;
    --space-md: 15px;
    --space-lg: 20px;
    --space-xl: 30px;
    --space-2xl: 45px;
    --space-3xl: 60px;
    --font: "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.8;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg);
    border-bottom: 2px solid var(--primary);
}

.header-top {
    background: var(--primary);
    color: white;
    padding: var(--space-sm) 0;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.header-contact {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 16px;
}

.header-contact i {
    font-size: 18px;
    color: var(--secondary);
}

.header-contact span {
    font-weight: bold;
    font-size: 18px;
}

.header-time {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 14px;
}

.header-main {
    padding: var(--space-lg) 0;
}

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

.logo h1 {
    font-size: 24px;
    color: var(--primary);
    font-weight: 700;
}

.nav {
    position: relative;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s ease;
    padding: var(--space-sm) var(--space-md);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary);
    background: var(--bg-light);
    border-radius: var(--radius-md);
}

.nav-toggle {
    display: none;
    background: var(--primary);
    color: white;
    border: none;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 20px;
}

.hero {
    position: relative;
    padding: var(--space-3xl) 0;
    background: linear-gradient(135deg, #0a4b96 0%, #063572 100%);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://images.unsplash.com/photo-1581091226825-a6a2a5aee158?w=1920&h=1080&fit=crop');
    background-size: cover;
    background-position: center;
    opacity: 0.1;
}

.hero .container {
    position: relative;
    z-index: 1;
    text-align: center;
}

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

.hero-title {
    font-size: 42px;
    color: white;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.hero-subtitle {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-xl);
}

.hero-phone {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--secondary);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-xl);
    color: white;
    font-size: 22px;
    font-weight: bold;
}

.hero-phone i {
    font-size: 24px;
}

.section {
    padding: var(--space-2xl) 0;
}

.section-alt {
    background: var(--bg-alt);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section-title {
    font-size: 30px;
    color: var(--text);
    margin-bottom: var(--space-md);
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary);
}

.section-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: var(--space-lg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.about-text h3 {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: var(--space-lg);
}

.about-text p {
    margin-bottom: var(--space-md);
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.9;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.feature-item {
    text-align: center;
    padding: var(--space-lg);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.feature-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.feature-item i {
    font-size: 32px;
    color: var(--primary);
    margin-bottom: var(--space-md);
}

.feature-item h4 {
    font-size: 15px;
    margin-bottom: var(--space-sm);
}

.feature-item p {
    font-size: 13px;
    color: var(--text-muted);
}

.about-image img {
    width: 100%;
    border-radius: var(--radius-md);
    border: 4px solid var(--border);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.service-card {
    background: var(--bg);
    padding: var(--space-lg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    text-align: center;
    transition: all 0.3s ease;
}

.service-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
}

.service-icon i {
    font-size: 28px;
    color: white;
}

.service-card h3 {
    font-size: 15px;
    margin-bottom: var(--space-sm);
    color: var(--text);
}

.service-card p {
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.7;
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.why-item {
    text-align: center;
    padding: var(--space-lg);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.why-number {
    font-size: 42px;
    font-weight: 700;
    color: var(--primary);
    opacity: 0.2;
    margin-bottom: var(--space-sm);
}

.why-item h3 {
    font-size: 16px;
    margin-bottom: var(--space-sm);
}

.why-item p {
    color: var(--text-light);
    font-size: 13px;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.news-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all 0.3s ease;
}

.news-card:hover {
    box-shadow: var(--shadow-md);
}

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

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

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

.news-content {
    padding: var(--space-md);
}

.news-date {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-muted);
    font-size: 12px;
    margin-bottom: var(--space-sm);
}

.news-title {
    font-size: 15px;
    margin-bottom: var(--space-md);
}

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

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

.news-desc {
    color: var(--text-light);
    margin-bottom: var(--space-md);
    font-size: 13px;
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-item {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
    padding: var(--space-md);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 22px;
    color: white;
}

.contact-text h4 {
    font-size: 15px;
    margin-bottom: var(--space-xs);
}

.contact-text p,
.contact-text a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
}

.contact-text a:hover {
    color: var(--primary);
}

.contact-form {
    background: var(--bg);
    padding: var(--space-lg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: var(--font);
    transition: border-color 0.3s ease;
}

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

.btn {
    display: inline-block;
    padding: var(--space-sm) var(--space-xl);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

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

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

.btn-block {
    width: 100%;
}

.empty-state {
    text-align: center;
    padding: var(--space-2xl);
    color: var(--text-muted);
}

.empty-state i {
    font-size: 60px;
    margin-bottom: var(--space-lg);
    opacity: 0.3;
}

.footer {
    background: #1a1a1a;
    color: #999;
    padding: var(--space-xl) 0 var(--space-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid #333;
}

.footer-about h3 {
    color: white;
    font-size: 18px;
    margin-bottom: var(--space-md);
}

.footer-about p {
    margin-bottom: var(--space-lg);
    line-height: 1.9;
    font-size: 13px;
}

.footer-phone {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.footer-phone i {
    color: var(--secondary);
    font-size: 18px;
}

.footer-phone a {
    color: white;
    text-decoration: none;
    font-size: 20px;
    font-weight: bold;
}

.footer-links h4,
.footer-services h4 {
    color: white;
    font-size: 16px;
    margin-bottom: var(--space-md);
}

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

.footer-links li,
.footer-services li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    color: #999;
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    font-size: 12px;
    color: #666;
}

.footer-bottom p {
    margin-bottom: var(--space-sm);
}

.page-banner {
    background: var(--primary);
    padding: var(--space-xl) 0;
    text-align: center;
}

.page-title {
    font-size: 28px;
    color: white;
    margin-bottom: var(--space-sm);
}

.breadcrumb {
    color: rgba(255, 255, 255, 0.7);
    font-size: 13px;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

.breadcrumb a:hover {
    color: white;
}

.breadcrumb span {
    margin: 0 var(--space-sm);
}

.list-wrapper,
.detail-wrapper {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--space-lg);
}

.article-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.article-item {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: var(--space-md);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all 0.3s ease;
}

.article-item:hover {
    box-shadow: var(--shadow-md);
}

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

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

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

.article-content {
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.article-meta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
    color: var(--text-muted);
    font-size: 12px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.article-title {
    font-size: 17px;
    margin-bottom: var(--space-md);
}

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

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

.article-desc {
    color: var(--text-light);
    margin-bottom: var(--space-md);
    font-size: 13px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
}

.page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 13px;
}

.page-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

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

.page-dots {
    padding: var(--space-sm);
    color: var(--text-muted);
}

.sidebar-widget {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.widget-title {
    font-size: 15px;
    padding: var(--space-md);
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    color: var(--text);
}

.widget-list {
    list-style: none;
    padding: var(--space-md);
}

.widget-list li {
    margin-bottom: var(--space-sm);
}

.widget-list a {
    display: block;
    padding: var(--space-sm) 0;
    color: var(--text);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s ease;
    border-bottom: 1px dashed var(--border);
}

.widget-list li:last-child a {
    border-bottom: none;
}

.widget-list a:hover,
.widget-list a.active {
    color: var(--primary);
    padding-left: var(--space-sm);
}

.widget-list-number {
    counter-reset: number;
}

.widget-list-number li {
    counter-increment: number;
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.number-badge {
    width: 22px;
    height: 22px;
    background: var(--primary);
    color: white;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 600;
    flex-shrink: 0;
}

.widget-list-number li:nth-child(1) .number-badge,
.widget-list-number li:nth-child(2) .number-badge,
.widget-list-number li:nth-child(3) .number-badge {
    background: var(--secondary);
}

.contact-widget {
    background: var(--primary);
    color: white;
    border: none;
}

.contact-widget .widget-title {
    background: var(--primary-dark);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
}

.contact-info-mini {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-md);
}

.contact-item-mini {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.contact-item-mini i {
    font-size: 18px;
    color: var(--secondary);
}

.contact-item-mini a,
.contact-item-mini span {
    color: white;
    text-decoration: none;
    font-size: 14px;
}

.contact-widget .btn-outline {
    border-color: white;
    color: white;
    margin: 0 var(--space-md) var(--space-md);
}

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

.contact-widget .btn-primary {
    background: var(--secondary);
    color: white;
    margin: 0 var(--space-md) var(--space-md);
}

.article-detail {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.article-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border);
}

.article-detail-title {
    font-size: 22px;
    margin-bottom: var(--space-md);
}

.article-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    color: var(--text-muted);
    font-size: 12px;
}

.article-cover {
    padding: var(--space-md);
}

.article-cover img {
    width: 100%;
    border-radius: var(--radius-sm);
}

.article-body {
    padding: var(--space-lg);
    line-height: 1.9;
    color: var(--text);
    font-size: 14px;
}

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

.article-tags {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border);
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
}

.tags-label {
    font-weight: 600;
    margin-right: var(--space-sm);
}

.tag-item {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    color: var(--text-light);
    text-decoration: none;
    font-size: 12px;
    margin: var(--space-xs);
    transition: all 0.3s ease;
}

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

.article-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background: var(--bg-light);
}

.article-nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--text);
    transition: all 0.3s ease;
}

.article-nav-item:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.article-nav-item.next {
    justify-content: flex-end;
    text-align: right;
}

.article-nav-item.next .article-nav-text {
    order: -1;
}

.article-nav-label {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: var(--space-xs);
}

.article-nav-title {
    display: block;
    font-weight: 600;
    font-size: 13px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .why-us-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .list-wrapper,
    .detail-wrapper {
        grid-template-columns: 1fr;
    }

    .list-sidebar,
    .detail-sidebar {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        right: 0;
        background: var(--bg);
        flex-direction: column;
        width: 260px;
        padding: var(--space-md);
        box-shadow: var(--shadow-lg);
        border-radius: var(--radius-md);
        gap: 0;
        border: 1px solid var(--border);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        padding: var(--space-md);
        border-bottom: 1px solid var(--border);
    }

    .nav-toggle {
        display: block;
    }

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

    .hero-subtitle {
        font-size: 16px;
    }

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

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

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

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

    .article-item {
        grid-template-columns: 1fr;
    }

    .article-image {
        height: 180px;
    }

    .article-nav {
        grid-template-columns: 1fr;
    }

    .article-nav-item.next {
        justify-content: flex-start;
        text-align: left;
    }

    .article-nav-item.next .article-nav-text {
        order: 1;
    }
}

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

    .why-us-grid {
        grid-template-columns: 1fr;
    }

    .logo h1 {
        font-size: 16px;
    }

    .section-title {
        font-size: 22px;
    }

    .hero-title {
        font-size: 22px;
    }
}