:root {
    --primary-color: #0052cc;
    --primary-light: #0066ff;
    --primary-dark: #003d99;
    --primary-gradient: linear-gradient(135deg, #0052cc 0%, #0066ff 100%);
    --secondary-color: #00b8d4;
    --secondary-gradient: linear-gradient(135deg, #00b8d4 0%, #00e5ff 100%);
    --neutral-color: #f8f9fa;
    --neutral-light: #ffffff;
    --neutral-dark: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-light: #ffffff;
    --success-color: #28a745;
    --success-gradient: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
    --shadow-xl: 0 12px 32px rgba(0,0,0,0.18);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --container-width: 1280px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    background-color: var(--neutral-color);
    font-size: 16px;
    overflow-x: hidden;
}

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

:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

button:focus, input:focus, textarea:focus, select:focus {
    outline: 3px solid rgba(0, 82, 204, 0.2);
    outline-offset: 2px;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

header {
    background: white;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: box-shadow var(--transition-normal);
}

header:hover {
    box-shadow: var(--shadow-lg);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    max-width: var(--container-width);
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 26px;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.02);
}

.logo-icon {
    width: 54px;
    height: 54px;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 22px;
    font-weight: bold;
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.3);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.logo:hover .logo-icon {
    transform: rotate(5deg);
    box-shadow: 0 6px 16px rgba(0, 82, 204, 0.4);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.search-box {
    position: relative;
    transition: transform var(--transition-normal);
}

.search-box:hover {
    transform: scale(1.02);
}

.search-box input {
    padding: 12px 40px 12px 18px;
    border: 2px solid var(--neutral-dark);
    border-radius: 25px;
    width: 280px;
    font-size: 14px;
    transition: all var(--transition-normal);
    background: var(--neutral-color);
}

.search-box input:focus {
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1);
    width: 320px;
}

.search-box input::placeholder {
    color: var(--text-secondary);
    transition: opacity var(--transition-fast);
}

.search-box input:focus::placeholder {
    opacity: 0.7;
}

.search-box button {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    transition: color var(--transition-fast), transform var(--transition-fast);
    padding: 4px;
}

.search-box button:hover {
    color: var(--primary-color);
    transform: translateY(-50%) scale(1.1);
}

.lang-switch {
    padding: 10px 24px;
    border: 2px solid var(--primary-color);
    border-radius: 25px;
    background: white;
    color: var(--primary-color);
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 2px 8px rgba(0, 82, 204, 0.1);
}

.lang-switch:hover {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.3);
    transform: translateY(-2px);
}

.lang-switch:active {
    transform: translateY(0);
}

.lang-switch.active {
    background: var(--primary-gradient);
    color: white;
}

.lang-icon {
    font-size: 18px;
    transition: transform var(--transition-normal);
}

.lang-switch:hover .lang-icon {
    transform: rotate(180deg);
}

nav {
    border-top: 1px solid var(--neutral-dark);
    background: white;
}

.nav-menu {
    display: flex;
    list-style: none;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 16px 24px;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: all var(--transition-normal);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-color);
    background: rgba(0, 82, 204, 0.04);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 60%;
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 220px;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
    padding: 8px 0;
    border: 1px solid var(--neutral-dark);
}

.nav-item:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: 12px 20px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-fast);
    font-size: 14px;
    position: relative;
}

.dropdown-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--primary-gradient);
    transition: height var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--neutral-color);
    color: var(--primary-color);
    padding-left: 24px;
}

.dropdown-item:hover::before {
    height: 24px;
}

.page {
    display: none;
    min-height: calc(100vh - 400px);
    animation: fadeIn var(--transition-normal);
}

.page.active {
    display: block;
}

.breadcrumb {
    background: var(--neutral-color);
    padding: 16px 0;
    border-bottom: 1px solid var(--neutral-dark);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

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

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

.breadcrumb-item.active {
    color: var(--primary-color);
    font-weight: 600;
}

.breadcrumb-separator {
    color: var(--text-secondary);
    opacity: 0.5;
}

.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

[data-lang-en] {
    font-size: 0.9em;
}

.nav-link [data-lang-en],
.dropdown-item [data-lang-en] {
    font-size: 0.85em;
}

button [data-lang-en],
.submit-btn [data-lang-en],
.reset-btn [data-lang-en] {
    font-size: 0.9em;
}

.product-title [data-lang-en],
.section-title [data-lang-en] {
    font-size: 0.9em;
}

h1 [data-lang-en],
h2 [data-lang-en],
h3 [data-lang-en],
.news-content h3 [data-lang-en] {
    font-size: 0.9em;
}

label [data-lang-en],
.filter-title [data-lang-en] {
    font-size: 0.9em;
}

.service-title [data-lang-en],
.service-features li [data-lang-en] {
    font-size: 0.9em;
}

.advantage-title [data-lang-en],
.team-name [data-lang-en],
.team-position [data-lang-en] {
    font-size: 0.9em;
}

.footer-section h3 [data-lang-en],
.footer-links a [data-lang-en] {
    font-size: 0.9em;
}

.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.loading.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--neutral-dark);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes fadeIn {
    from { 
        opacity: 0;
        transform: translateY(20px); 
    }
    to { 
        opacity: 1;
        transform: translateY(0); 
    }
}

.carousel {
    position: relative;
    width: 100%;
    height: 650px;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.carousel-container {
    display: flex;
    transition: transform var(--transition-slow);
    height: 100%;
}

.carousel-slide {
    min-width: 100%;
    height: 100%;
    position: relative;
    cursor: pointer;
}

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

.carousel-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.85));
    color: white;
    padding: 60px 24px;
    transform: translateY(0);
    transition: transform var(--transition-normal);
    pointer-events: none;
}

.carousel:hover .carousel-content {
    transform: translateY(-10px);
}

.carousel-title {
    font-size: 42px;
    margin-bottom: 12px;
    font-weight: 700;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
    animation: slideInUp var(--transition-normal);
}

.carousel-description {
    font-size: 18px;
    opacity: 0.95;
    max-width: 800px;
    animation: slideInUp var(--transition-normal) 0.2s both;
}

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

.carousel-controls {
    position: absolute;
    bottom: 30px;
    right: 30px;
    display: flex;
    gap: 12px;
    z-index: 10;
    pointer-events: auto;
}

.carousel-btn {
    background: rgba(255,255,255,0.15);
    pointer-events: auto;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255,255,255,0.3);
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.carousel-btn:hover {
    background: rgba(255,255,255,0.3);
    border-color: rgba(255,255,255,0.5);
    transform: scale(1.1);
}

.carousel-btn:active {
    transform: scale(0.95);
}

.carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid rgba(255,255,255,0.3);
    pointer-events: auto;
}

.indicator:hover {
    background: rgba(255,255,255,0.6);
    border-color: rgba(255,255,255,0.5);
}

.indicator.active {
    background: white;
    transform: scale(1.3);
    border-color: white;
    box-shadow: 0 0 12px rgba(255,255,255,0.4);
}

.advantages {
    padding: 80px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--text-primary);
    font-weight: 700;
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary-gradient);
    margin: 16px auto 0;
    border-radius: 2px;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.advantage-card {
    text-align: center;
    padding: 40px 30px;
    background: var(--neutral-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    text-decoration: none;
    color: inherit;
    display: block;
}

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

.advantage-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 24px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: white;
    box-shadow: 0 4px 16px rgba(0, 82, 204, 0.3);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 6px 20px rgba(0, 82, 204, 0.4);
}

.advantage-title {
    font-size: 22px;
    margin-bottom: 12px;
    color: var(--primary-color);
    font-weight: 600;
}

.advantage-description {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
}

.advantage-tooltip {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
    margin-top: 0;
}

.advantage-card:hover .advantage-tooltip {
    max-height: 200px;
    margin-top: 12px;
}

.news-section {
    padding: 80px 0;
}

.news-filter-bar {
    display: flex;
    align-items: center;
    gap: 20px;
    margin: 20px 0 30px;
    flex-wrap: wrap;
}

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

.news-category-filter label {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 14px;
}

.news-category-filter select {
    padding: 10px 40px 10px 16px;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-md);
    font-size: 14px;
    background: white;
    cursor: pointer;
    transition: all var(--transition-normal);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    min-width: 140px;
}

.news-category-filter select:hover {
    border-color: var(--primary-color);
}

.news-category-filter select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.news-search-box {
    flex: 1;
    max-width: 350px;
    display: flex;
    background: white;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.news-search-box:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.news-search-box input {
    flex: 1;
    border: none;
    padding: 10px 16px;
    font-size: 14px;
    outline: none;
}

.news-search-box button {
    background: var(--primary-color);
    border: none;
    padding: 10px 18px;
    cursor: pointer;
    font-size: 16px;
    transition: background var(--transition-normal);
}

.news-search-box button:hover {
    background: var(--primary-dark);
}

.news-category-tag {
    display: inline-block;
    padding: 4px 12px;
    background: linear-gradient(135deg, var(--primary-color), #0052a3);
    color: white;
    font-size: 12px;
    border-radius: 20px;
    margin-top: 10px;
    font-weight: 500;
}

@media (max-width: 600px) {
    .news-filter-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .news-category-filter {
        justify-content: space-between;
    }
    
    .news-category-filter select {
        flex: 1;
    }
    
    .news-search-box {
        max-width: none;
    }
}

.home-news-item {
    display: flex;
    flex-direction: column;
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.home-news-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), #00c6ff);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.home-news-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 102, 204, 0.15);
}

.home-news-item:hover::before {
    opacity: 1;
}

.home-news-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 14px 0;
    flex-wrap: wrap;
}

.home-news-date {
    font-size: 12px;
    color: #888;
    font-weight: 500;
}

.home-news-category {
    font-size: 11px;
    padding: 4px 10px;
    background: linear-gradient(135deg, var(--primary-color), #0052a3);
    color: white;
    border-radius: 20px;
    font-weight: 500;
    letter-spacing: 0.3px;
}

.home-news-title {
    font-size: 15px;
    font-weight: 700;
    color: #1a1a2e;
    padding: 0 14px;
    margin: 10px 0 6px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.home-news-desc {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
    padding: 0 14px;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.home-news-cover {
    width: 100%;
    height: 130px;
    overflow: hidden;
    margin-top: auto;
    position: relative;
}

.home-news-cover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(transparent, rgba(0,0,0,0.1));
    pointer-events: none;
}

.home-news-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.home-news-item:hover .home-news-cover img {
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .home-news-meta {
        padding: 10px 10px 0;
    }
    
    .home-news-title {
        font-size: 14px;
        padding: 0 10px;
    }
    
    .home-news-desc {
        font-size: 12px;
        padding: 0 10px;
    }
    
    .home-news-cover {
        height: 100px;
    }
}

.news-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

#homeNewsList {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
    padding: 10px 0;
}

@media (max-width: 1200px) {
    #homeNewsList {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    #homeNewsList {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
}

@media (max-width: 480px) {
    #homeNewsList {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

.news-item {
    background: white;
    padding: 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: flex-start;
    gap: 24px;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    width: 100%;
    box-sizing: border-box;
}

.news-cover {
    flex-shrink: 0;
    width: 120px;
    height: 80px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-left: auto;
}

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

.news-item:hover .news-cover img {
    transform: scale(1.05);
}

.news-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.news-date {
    min-width: 90px;
    flex-shrink: 0;
    text-align: center;
    color: var(--primary-color);
    background: linear-gradient(135deg, rgba(0, 82, 204, 0.1), rgba(0, 182, 212, 0.1));
    border-radius: var(--radius-md);
    padding: 16px 0;
}

.news-date-day {
    font-size: 32px;
    font-weight: 700;
}

.news-date-month {
    font-size: 14px;
    opacity: 0.8;
}

.news-content h3 {
    margin-bottom: 12px;
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
}

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

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

.products-page {
    padding: 60px 0;
}

.products-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 32px;
    margin-top: 40px;
}

.products-main {
    display: flex;
    flex-direction: column;
}

.filter-sidebar {
    background: white;
    padding: 28px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 140px;
    height: fit-content;
}

.filter-group {
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 2px solid var(--neutral-dark);
}

.filter-group:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.filter-title {
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-title::before {
    content: '';
    width: 4px;
    height: 18px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

.filter-option {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.filter-option:hover {
    background: var(--neutral-color);
}

.filter-option input {
    cursor: pointer;
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

.price-range {
    display: flex;
    gap: 12px;
    align-items: center;
}

.price-range input {
    width: 100%;
    padding: 10px;
    border: 2px solid var(--neutral-dark);
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: all var(--transition-normal);
}

.price-range input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1);
}

.reset-btn {
    width: 100%;
    padding: 12px 24px;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    margin-top: 24px;
    font-weight: 600;
    font-size: 15px;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.2);
}

.reset-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 82, 204, 0.3);
}

.reset-btn:active {
    transform: translateY(0);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.product-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

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

.product-image {
    width: 100%;
    height: 220px;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 56px;
    transition: transform var(--transition-slow);
    overflow: hidden;
}

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

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

.product-info {
    padding: 24px;
}

.product-title {
    font-size: 20px;
    margin-bottom: 16px;
    color: var(--text-primary);
    font-weight: 600;
}

.product-specs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.spec-item {
    font-size: 12px;
    color: var(--text-secondary);
    padding: 6px 8px;
    background: var(--neutral-color);
    border-radius: var(--radius-sm);
}

.spec-item strong {
    color: var(--text-primary);
    display: block;
    margin-bottom: 4px;
}

.product-btn {
    width: 100%;
    padding: 12px;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-weight: 600;
    font-size: 15px;
    box-shadow: 0 2px 8px rgba(0, 82, 204, 0.2);
}

.product-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.3);
}

.product-btn:active {
    transform: translateY(0);
}

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

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

.about-text h2 {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.about-text p {
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.about-image {
    height: 400px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 64px;
}

.cert-section {
    padding: 60px 0;
    background: #f8f9fa;
}

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

.cert-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cert-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.page-header {
    background: linear-gradient(135deg, #0052cc 0%, #00875a 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 42px;
    margin-bottom: 15px;
    font-weight: 600;
}

.page-subtitle {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.service-detail-section {
    padding: 60px 0;
    background: #f8f9fa;
}

.service-detail-content {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 40px;
}

.service-detail-main {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.service-detail-main h2 {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #0052cc;
}

.service-overview {
    margin-bottom: 40px;
}

.service-overview p {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
}

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

.feature-item {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-radius: 12px;
    padding: 25px;
    border: 1px solid #e8e8e8;
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,82,204,0.15);
    border-color: #0052cc;
}

.feature-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.feature-item h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
}

.feature-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

.process-steps {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 25px;
}

.process-step {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    flex: 1;
    min-width: 200px;
    position: relative;
}

.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 20px;
    right: -10px;
    width: 20px;
    height: 2px;
    background: #0052cc;
}

.step-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #0052cc 0%, #00875a 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 18px;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 16px;
    color: #333;
    margin-bottom: 5px;
}

.step-content p {
    font-size: 13px;
    color: #666;
    line-height: 1.5;
}

.service-detail-sidebar {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.sidebar-card {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.sidebar-card h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #0052cc;
}

.sidebar-card p {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
    line-height: 1.6;
}

.contact-info {
    margin-bottom: 15px;
}

.contact-info p {
    margin-bottom: 5px;
}

.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, #0052cc 0%, #00875a 100%);
    color: white;
    padding: 12px 25px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: transform 0.2s, box-shadow 0.2s;
    width: 100%;
    text-align: center;
    box-sizing: border-box;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,82,204,0.3);
}

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

.sidebar-links li {
    margin-bottom: 10px;
}

.sidebar-links a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    background: #f8f9fa;
    border-radius: 8px;
    color: #333;
    text-decoration: none;
    transition: all 0.2s;
}

.sidebar-links a:hover {
    background: #0052cc;
    color: white;
}

.cert-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.cert-card h3 {
    font-size: 18px;
    color: #333;
    margin: 10px 0;
}

.cert-card p {
    font-size: 14px;
    color: #666;
    margin: 0;
}

.team-section {
    padding: 60px 0;
}

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

.team-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.team-image {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 64px;
}

.team-info {
    padding: 20px;
}

.team-name {
    font-size: 20px;
    margin-bottom: 5px;
    color: var(--text-primary);
}

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

.team-bio {
    color: var(--text-secondary);
    font-size: 14px;
}

.news-detail {
    max-width: 800px;
    margin: 40px auto;
    padding: 40px;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.news-detail-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--neutral-dark);
}

.news-detail-title {
    font-size: 28px;
    margin-bottom: 10px;
}

.news-detail-meta {
    color: var(--text-secondary);
    font-size: 14px;
}

.news-detail-content {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-primary);
}

.news-detail-content p {
    margin-bottom: 20px;
}

.related-news {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--neutral-dark);
}

.related-news-title {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.services-section {
    padding: 60px 0;
}

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

.service-card {
    background: white;
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
    margin-bottom: 20px;
}

.service-title {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.service-description {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

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

.service-features li {
    padding: 8px 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-features li::before {
    content: "✓";
    color: var(--success-color);
    font-weight: bold;
}

.contact-section {
    padding: 40px 0;
}

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

.contact-info {
    background: white;
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 32px;
    transition: transform var(--transition-fast);
}

.contact-item:hover {
    transform: translateX(8px);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.3);
    flex-shrink: 0;
}

.contact-details h3 {
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
}

.contact-details p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

.contact-form {
    background: white;
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 14px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px;
    border: 2px solid var(--neutral-dark);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 14px;
    transition: all var(--transition-normal);
    background: var(--neutral-color);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
}

.submit-btn {
    width: 100%;
    padding: 16px 24px;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.2);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 82, 204, 0.3);
}

.submit-btn:active {
    transform: translateY(0);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.verify-code-btn {
    padding: 14px 20px;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 8px rgba(0, 82, 204, 0.2);
}

.verify-code-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.3);
}

.verify-code-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: var(--text-secondary);
    transform: none;
}

footer {
    background: #1a1a1a;
    color: white;
    padding: 60px 0 20px;
    margin-top: 60px;
}

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

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

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

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

.footer-links a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

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

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: background 0.3s ease;
}

.social-link:hover {
    background: rgba(255,255,255,0.2);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    color: rgba(255,255,255,0.6);
    font-size: 14px;
}

@media (max-width: 1200px) {
    .header-top {
        flex-direction: column;
        gap: 16px;
    }
    .search-box input {
        width: 240px;
    }
}

@media (max-width: 992px) {
    .products-layout {
        grid-template-columns: 1fr;
    }
    .filter-sidebar {
        position: static;
        margin-bottom: 24px;
    }
}

@media (max-width: 768px) {
    .header-top {
        padding: 16px 20px;
    }
    .search-box {
        width: 100%;
        margin-right: 0;
    }
    .search-box input {
        width: 100%;
    }
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
    }
    .nav-link {
        padding: 12px 16px;
        font-size: 14px;
    }
    .about-content,
    .contact-layout {
        grid-template-columns: 1fr;
    }
    .carousel {
        height: 500px;
    }
    .carousel-title {
        font-size: 32px;
    }
    .carousel-description {
        font-size: 16px;
    }
    .section-title {
        font-size: 28px;
    }
    .advantages-grid,
    .services-grid,
    .team-grid,
    .product-grid {
        grid-template-columns: 1fr;
    }
    .product-specs {
        grid-template-columns: repeat(2, 1fr);
    }
    .back-to-top {
        bottom: 24px;
        right: 24px;
        width: 44px;
        height: 44px;
    }
    .contact-item {
        flex-direction: column;
        text-align: center;
    }
    .contact-icon {
        width: 56px;
        height: 56px;
        font-size: 24px;
    }
}

@media (max-width: 576px) {
    .logo {
        font-size: 20px;
    }
    .logo-icon {
        width: 48px;
        height: 48px;
        font-size: 18px;
    }
    .nav-menu {
        padding: 0 16px;
    }
    .nav-link {
        padding: 10px 12px;
        font-size: 13px;
    }
    .carousel {
        height: 400px;
    }
    .carousel-title {
        font-size: 24px;
    }
    .carousel-description {
        font-size: 14px;
    }
    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 14px;
    }
    .advantage-card,
    .service-card,
    .news-item {
        padding: 24px 20px;
    }
    .news-item {
        flex-wrap: wrap;
    }
    .news-date {
        min-width: auto;
    }
    .news-cover {
        width: 100px;
        height: 70px;
        margin-left: auto;
        align-self: center;
    }
    .news-content {
        flex: 1;
        min-width: 0;
    }
    .news-date-day {
        font-size: 24px;
    }
    .news-content h3 {
        font-size: 16px;
    }
    .product-card {
        margin-bottom: 0;
    }
    .product-specs {
        grid-template-columns: 1fr;
    }
    .filter-sidebar {
        padding: 20px 16px;
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 25px;
    background: var(--success-color);
    color: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transform: translateX(400px);
    transition: transform 0.3s ease;
    z-index: 2000;
}

.toast.show {
    transform: translateX(0);
}

.map-container {
    height: 400px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    margin-top: 30px;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 3000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: var(--radius-lg);
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
}

[data-lang-zh] {
    display: block;
}

[data-lang-en] {
    display: none;
}

.lang-en [data-lang-zh] {
    display: none;
}

.lang-en [data-lang-en] {
    display: block;
}

/* 产品模态框样式 */
.product-modal-content h2 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.product-modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: stretch;
}

.product-modal-image {
    height: 100%;
    min-height: 320px;
    font-size: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f0f4f8 0%, #e8eef5 100%);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

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

.product-modal-info h3 {
    margin-bottom: 15px;
}

.product-modal-info ul {
    margin-bottom: 20px;
    list-style: none;
    padding: 0;
}

.product-modal-info li {
    margin-bottom: 8px;
}

.product-modal-info li::before {
    content: '✓ ';
    color: var(--primary-color);
}

.product-modal-info {
    display: flex;
    flex-direction: column;
    background: white;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.product-modal-info h3 {
    margin: 0 0 20px 0;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
    color: var(--primary-color);
    font-size: 18px;
}

.product-modal-specs {
    width: 100%;
    border-collapse: collapse;
    flex: 1;
}

.product-modal-specs tr {
    border-bottom: 1px solid #f0f0f0;
    transition: background 0.2s ease;
}

.product-modal-specs tr:hover {
    background: #f8f9fa;
}

.product-modal-specs td {
    padding: 14px 12px;
    font-size: 14px;
}

.product-modal-specs td:first-child {
    font-weight: 600;
    color: #333;
    width: 45%;
}

.product-modal-specs td:last-child {
    color: #555;
}

.product-modal-features {
    margin-top: 25px;
    padding: 20px 0;
}

.product-modal-features h3 {
    margin-bottom: 15px;
    color: #333;
}

.product-features-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px 30px;
}

.product-feature-item {
    font-size: 15px;
    color: #333;
    white-space: nowrap;
}

.product-feature-item::before {
    content: '✓ ';
    color: var(--primary-color);
    font-weight: bold;
}

@media (max-width: 768px) {
    .product-modal-grid {
        grid-template-columns: 1fr;
    }
    .product-modal-image {
        min-height: 250px;
    }
    .product-features-grid {
        gap: 15px 20px;
    }
}

@media (max-width: 480px) {
    .product-features-grid {
        gap: 12px 15px;
    }
}

.product-modal-desc {
    margin-top: 30px;
}

.product-modal-desc h3 {
    margin-bottom: 15px;
}

.product-modal-desc p {
    color: var(--text-secondary);
}

.product-modal-footer {
    margin-top: 30px;
}

.product-modal-btn {
    padding: 10px 30px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
}

/* 相关新闻样式 */
.related-news-section {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--neutral-dark);
}

.related-news-section h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.related-news-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: var(--neutral-light);
    border-radius: 8px;
    text-decoration: none;
    color: inherit;
    transition: background 0.2s;
    margin-bottom: 10px;
}

.related-news-item:hover {
    background: var(--neutral-color);
}

.related-news-icon {
    font-size: 20px;
}

.related-news-info {
    flex: 1;
}

.related-news-title {
    font-weight: 500;
    color: #333;
}

.related-news-date {
    font-size: 12px;
    color: #999;
}

.related-news-arrow {
    color: var(--primary-color);
}

/* 新闻详情样式 */
.news-detail-header {
    margin-bottom: 30px;
}

.news-detail-title {
    font-size: 28px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.news-detail-meta {
    color: var(--text-secondary);
    font-size: 14px;
}

.news-detail-content {
    line-height: 1.8;
    color: #555;
}

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

.news-detail-image {
    text-align: center;
    margin: 30px 0;
    font-size: 64px;
}

.news-detail-image img {
    max-width: 100%;
    max-height: 400px;
    border-radius: var(--radius-md);
    object-fit: cover;
}

.related-news-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
}

.news-detail-related {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.news-detail-related h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.news-detail-related-item {
    padding: 15px;
    border-left: 3px solid var(--primary-color);
    margin-bottom: 15px;
    cursor: pointer;
    transition: background 0.2s;
}

.news-detail-related-item:hover {
    background: var(--neutral-light);
}

.news-detail-related-item h4 {
    margin-bottom: 5px;
}

.news-detail-related-item p {
    color: var(--text-secondary);
    font-size: 14px;
}

.news-detail-back {
    margin-top: 20px;
    padding: 10px 30px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
}

.news-detail-video {
    margin: 20px 0;
    text-align: center;
}

.news-detail-video video {
    max-width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

/* 搜索模态框样式 */
.search-modal {
    display: none;
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    border-radius: 16px;
    padding: 30px;
    min-width: 600px;
    max-width: 90vw;
    max-height: 70vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    z-index: 1001;
}

.search-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
}

.search-modal-title {
    margin: 0 0 20px;
    font-size: 20px;
    color: #333;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
}

.search-modal-content {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.search-result-section {
    flex: 1;
    min-width: 220px;
    max-width: 300px;
}

.search-result-section h4 {
    margin: 0 0 15px;
    font-size: 16px;
    color: #333;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
    font-weight: 600;
}

.search-result-section h4 span {
    font-weight: 400;
    color: #999;
}

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

.search-result-list li {
    margin-bottom: 4px;
}

.search-result-link {
    color: #666;
    text-decoration: none;
    display: block;
    padding: 6px 10px;
    border-radius: 4px;
    transition: all 0.2s ease;
    cursor: pointer;
}

.search-result-link:hover {
    color: #333;
    background: #f5f5f5;
}

.search-result-more {
    color: #999;
    font-size: 13px;
    padding: 4px 10px;
}

.search-no-results {
    width: 100%;
    text-align: center;
    color: #999;
    padding: 40px;
}

.search-product-card {
    padding: 15px;
    background: linear-gradient(135deg, #e8f4fd 0%, #f0f7ff 100%);
    border-radius: 8px;
    text-align: center;
}

.search-product-icon {
    font-size: 28px;
    margin-bottom: 10px;
}

.search-product-desc {
    font-size: 13px;
    color: #666;
    margin-bottom: 12px;
}

.search-product-btn {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 13px;
    text-decoration: none;
}

.pagination-container {
    display: flex;
    justify-content: center;
    margin-top: 20px;
    padding: 16px 0;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.pagination {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.pagination-btn {
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border: 2px solid #e0e0e0;
    background: white;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    color: #555;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: #f0f7ff;
    transform: translateY(-2px);
}

.pagination-btn.active {
    background: linear-gradient(135deg, var(--primary-color), #0052a3);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.3);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.pagination-ellipsis {
    padding: 0 8px;
    color: #999;
    font-size: 14px;
}

@media (max-width: 768px) {
    .pagination-container {
        margin-top: 24px;
    }
    
    .pagination-btn {
        min-width: 36px;
        height: 36px;
        font-size: 13px;
        padding: 0 10px;
    }
    
    .pagination {
        gap: 6px;
    }
}