:root {
            --primary-orange: #ff6600;
            --primary-hover: #e65c00;
            --text-dark: #1a1a1a;
            --text-gray: #666;
            --bg-light: #f8f9fa;
            --container-width: 1470px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s ease;
        }

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

        body {
            font-family: Arial, Helvetica, sans-serif;
            color: var(--text-dark);
            line-height: 1.6;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: 'Poppins', sans-serif;
            color: var(--text-dark);
            font-weight: 700;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        ul {
            list-style: none;
        }

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

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Top Bar */
        .top-bar {
            background: #111;
            color: #ccc;
            font-size: 13px;
            padding: 10px 0;
            border-bottom: 1px solid #222;
        }

        .top-bar .container {
            display: flex;
            justify-content: space-between;
            width: 100%;
        }

        /* Header */
        header {
            background: #fff;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .logo {
            font-size: 28px;
            font-weight: 800;
            font-family: 'Poppins', sans-serif;
            display: flex;
            align-items: center;
            color: #000;
            letter-spacing: -1px;
        }

        .logo img {
            width: 50px;
            margin-right: 8px;
        }

        nav ul {
            display: flex;
            gap: 40px;
            align-items: center;
        }

        nav a {
            font-weight: 600;
            font-size: 15px;
            text-transform: uppercase;
            color: #333;
            position: relative;
        }

        nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-orange);
            transition: 0.3s;
        }

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

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

        .btn {
            display: inline-block;
            padding: 12px 30px;
            background: var(--primary-orange);
            color: #fff;
            font-weight: 600;
            border-radius: 4px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            font-size: 14px;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(255, 102, 0, 0.3);
            transition: var(--transition);
        }

        .btn:hover {
            background: var(--primary-hover);
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255, 102, 0, 0.4);
        }

        /* Dropdown Menu */
        .dropdown {
            position: relative;
        }

        .dropdown-menu {
            position: absolute;
            top: 100%;
            left: 0;
            background: #fff;
            min-width: 180px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            border-radius: 4px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: all 0.3s ease;
            z-index: 1000;
            border-top: 3px solid var(--primary-orange);
        }

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

        .dropdown-menu a {
            display: block;
            padding: 12px 20px;
            color: #333;
            font-size: 14px;
            font-weight: 500;
            text-transform: none;
            border-bottom: 1px solid #f0f0f0;
            transition: all 0.3s ease;
        }

        .dropdown-menu a:last-child {
            border-bottom: none;
        }

        .dropdown-menu a:hover {
            background: #f8f9fa;
            color: var(--primary-orange);
            padding-left: 25px;
        }

        .dropdown-menu a::after {
            display: none;
        }

        /* Banner */
        .banner {
            width: 100%;
            height: 50vh;
            background: url('../img/banners/banner-news.jpg') no-repeat center center;
            background-size: cover;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.3);
        }

        .banner h1 {
            position: relative;
            font-size: 48px;
            color: #333;
            text-transform: uppercase;
            font-weight: 900;
            letter-spacing: 2px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
            transform: rotate(-3deg);
        }

        /* Breadcrumb */
        .mbx {
            font-size: 1rem;
            color: #4d4d4d;
            font-family: 'roboto-bold';
            background: #eee;
            padding: 1.5rem 0;
            margin-bottom: 2rem;
        }

        /* Main Content Area */
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 350px;
            gap: 100px;
            margin-bottom: 60px;
        }

        /* Article Content */
        .article-content {
            background: #fff;
            padding: 40px;
            box-shadow: var(--shadow-card);
            border-radius: 8px;
        }

        .article-header {
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 2px solid #f0f0f0;
        }

        .article-title {
            font-size: 32px;
            line-height: 1.4;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

        .article-meta {
            display: flex;
            gap: 30px;
            color: var(--text-gray);
            font-size: 14px;
        }

        .article-meta i {
            color: var(--primary-orange);
            margin-right: 8px;
        }

        .article-image {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: 8px;
            margin-bottom: 30px;
        }

        .article-body {
            font-size: 16px;
            line-height: 1.8;
            color: #333;
        }

        .article-body h2 {
            font-size: 24px;
            margin-top: 30px;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

        .article-body h3 {
            font-size: 20px;
            margin-top: 25px;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

        .article-body p {
            margin-bottom: 20px;
        }

        .article-body ul, .article-body ol {
            margin-left: 30px;
            margin-bottom: 20px;
            list-style: disc;
        }

        .article-body li {
            margin-bottom: 10px;
        }

        .article-tags {
            margin-top: 40px;
            padding-top: 30px;
            border-top: 2px solid #f0f0f0;
        }

        .article-tags h4 {
            font-size: 16px;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

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

        .tag {
            padding: 8px 16px;
            background: #f5f5f5;
            border-radius: 20px;
            font-size: 13px;
            color: var(--text-gray);
            transition: var(--transition);
        }

        .tag:hover {
            background: var(--primary-orange);
            color: #fff;
        }

        /* Sidebar */
        .sidebar {
            position: sticky;
            top: 100px;
            height: fit-content;
        }

        .sidebar-box {
            background: #fff;
            padding: 30px;
            margin-bottom: 30px;
            box-shadow: var(--shadow-card);
            border-radius: 8px;
        }

        .sidebar-box h3 {
            font-size: 20px;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--primary-orange);
            color: var(--text-dark);
        }

        .recent-news-item {
            display: flex;
            gap: 15px;
            margin-bottom: 20px;
            padding-bottom: 20px;
            border-bottom: 1px solid #f0f0f0;
        }

        .recent-news-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }

        .recent-news-img {
            width: 80px;
            height: 80px;
            object-fit: cover;
            border-radius: 4px;
            flex-shrink: 0;
        }

        .recent-news-content h4 {
            font-size: 14px;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--text-dark);
            font-weight: 600;
        }

        .recent-news-content h4:hover {
            color: var(--primary-orange);
        }

        .recent-news-date {
            font-size: 12px;
            color: var(--text-gray);
        }

        .category-list {
            list-style: none;
        }

        .category-list li {
            margin-bottom: 12px;
        }

        .category-list a {
            display: flex;
            justify-content: space-between;
            padding: 10px 15px;
            background: #f8f9fa;
            border-radius: 4px;
            color: var(--text-dark);
            font-size: 14px;
            transition: var(--transition);
        }

        .category-list a:hover {
            background: var(--primary-orange);
            color: #fff;
            padding-left: 20px;
        }

        .category-count {
            color: var(--text-gray);
        }

        /* Floating Sidebar */
        .float-sidebar {
            position: fixed;
            right: 0;
            top: 40%;
            z-index: 1001;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .float-btn {
            width: 45px;
            height: 45px;
            background-color: var(--primary-orange);
            color: #fff;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 20px;
            cursor: pointer;
            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
            margin-right: 10px;
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        /* Map Section */
        .map-section {
            position: relative;
            height: 550px;
            background: url('/img/map.jpg') center/cover;
        }

        .contact-form-wrapper {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: rgba(255, 255, 255, 0.95);
            padding: 50px;
            width: 450px;
            border-radius: 10px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
            text-align: center;
            backdrop-filter: blur(5px);
        }

        .contact-form-wrapper h3 {
            margin-bottom: 25px;
            font-size: 24px;
        }

        .form-group {
            margin-bottom: 15px;
        }

        .form-input {
            width: 100%;
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: 5px;
            background: #f9f9f9;
            font-family: inherit;
            font-size: 14px;
            outline: none;
            transition: 0.3s;
        }

        .form-input:focus {
            border-color: var(--primary-orange);
            background: #fff;
        }

        .submit-btn {
            background: #111;
            color: #fff;
            width: 100%;
            padding: 15px;
            border: none;
            cursor: pointer;
            font-weight: 700;
            text-transform: uppercase;
            border-radius: 5px;
            transition: 0.3s;
        }

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

        /* Footer */
        footer {
            background: #111;
            color: #fff;
            padding: 80px 0 30px;
            font-size: 14px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 100px;
            padding-bottom: 50px;
        }

        .footer-col h4 {
            color: #fff;
            margin-bottom: 25px;
            font-size: 18px;
            position: relative;
            display: inline-block;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 30px;
            height: 2px;
            background: var(--primary-orange);
        }
        .footer-col:last-child {
            text-align: left;
            margin-left: auto;
            max-width: 500px;
            padding-left: 250px;
        }

        .footer-col:last-child h4 {
            display: inline-block;
        }

        .footer-col:last-child .footer-info-item {
            justify-content: flex-start;
            align-items: flex-start;
        }

        .footer-col:last-child .footer-info-item span {
            word-wrap: break-word;
            word-break: break-word;
            white-space: normal;
        }

        .footer-info-item {
            display: flex;
            margin-bottom: 15px;
            gap: 15px;
            color: #aaa;
        }

        .footer-info-item i {
            color: var(--primary-orange);
            margin-top: 4px;
        }

        .copyright {
            text-align: center;
            padding-top: 30px;
            color: #666;
            font-size: 13px;
        }

        footer ul {
            margin-top: 20px;
        }

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

        footer ul li a:hover {
            color: var(--primary-orange);
        }
    

/* ========================================
   News Detail 页面响应式优化
   ======================================== */

/* 平板及以下 (< 1024px) */
@media (max-width: 1024px) {
    .content-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .sidebar-box {
        margin-bottom: 0;
    }
    
    .article-content {
        padding: 30px;
    }
    
    .article-title {
        font-size: 28px;
    }
    
    .article-image {
        height: 300px;
    }
    
    .article-body {
        font-size: 15px;
    }
    
    .article-body h2 {
        font-size: 22px;
    }
    
    .article-body h3 {
        font-size: 18px;
    }
}

/* 手机端 (< 640px) */
@media (max-width: 640px) {
    .banner {
        height: 30vh;
        min-height: 200px;
    }
    
    .banner h1 {
        font-size: 28px;
        letter-spacing: 1px;
    }
    
    .mbx {
        font-size: 0.875rem;
        padding: 1rem 0;
    }
    
    .content-wrapper {
        gap: 30px;
        margin-bottom: 40px;
    }
    
    .article-content {
        padding: 20px 15px;
        box-shadow: none;
        border-radius: 0;
    }
    
    .article-header {
        margin-bottom: 20px;
        padding-bottom: 15px;
    }
    
    .article-title {
        font-size: 22px;
        line-height: 1.3;
        margin-bottom: 12px;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 8px;
        font-size: 12px;
    }
    
    .article-image {
        height: 200px;
        margin-bottom: 20px;
        border-radius: 4px;
    }
    
    .article-body {
        font-size: 14px;
        line-height: 1.7;
    }
    
    .article-body h2 {
        font-size: 18px;
        margin-top: 25px;
        margin-bottom: 12px;
    }
    
    .article-body h3 {
        font-size: 16px;
        margin-top: 20px;
        margin-bottom: 10px;
    }
    
    .article-body p {
        margin-bottom: 15px;
    }
    
    .article-body ul,
    .article-body ol {
        margin-left: 20px;
        margin-bottom: 15px;
    }
    
    .article-body li {
        margin-bottom: 8px;
        font-size: 13px;
    }
    
    .article-tags {
        margin-top: 30px;
        padding-top: 20px;
    }
    
    .article-tags h4 {
        font-size: 14px;
        margin-bottom: 12px;
    }
    
    .tag {
        padding: 6px 12px;
        font-size: 11px;
    }
    
    .sidebar {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .sidebar-box {
        padding: 20px 15px;
        margin-bottom: 0;
    }
    
    .sidebar-box h3 {
        font-size: 16px;
        margin-bottom: 15px;
        padding-bottom: 12px;
    }
    
    .recent-news-item {
        gap: 12px;
        margin-bottom: 15px;
        padding-bottom: 15px;
    }
    
    .recent-news-img {
        width: 70px;
        height: 70px;
    }
    
    .recent-news-content h4 {
        font-size: 13px;
        line-height: 1.3;
        margin-bottom: 6px;
    }
    
    .recent-news-date {
        font-size: 11px;
    }
    
    .category-list a {
        padding: 8px 12px;
        font-size: 13px;
    }
    
    .category-list a:hover {
        padding-left: 16px;
    }
    
    .category-count {
        font-size: 12px;
    }
}