:root {
            --primary: #FF6B35;
            --secondary: #004E89;
            --accent: #00A6A6;
            --light: #F7F9FC;
            --dark: #2D3142;
            --gray: #8D99AE;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 12px;
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: var(--light);
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: var(--secondary);
            transform: scale(1.02);
        }
        .my-logo i {
            font-size: 2.5rem;
        }
        .desktop-nav {
            display: flex;
            gap: 30px;
        }
        @media (max-width: 992px) {
            .desktop-nav {
                display: none;
            }
        }
        .nav-link {
            text-decoration: none;
            color: var(--dark);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 0;
            position: relative;
            transition: var(--transition);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--accent);
            transition: width 0.3s ease;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--dark);
            cursor: pointer;
            padding: 5px;
        }
        @media (max-width: 992px) {
            .hamburger {
                display: block;
            }
        }
        .mobile-nav {
            position: fixed;
            top: 80px;
            left: 0;
            width: 100%;
            background: white;
            box-shadow: var(--shadow);
            padding: 20px;
            transform: translateY(-100%);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 999;
        }
        .mobile-nav.active {
            transform: translateY(0);
            opacity: 1;
            visibility: visible;
        }
        .mobile-nav .nav-link {
            display: block;
            padding: 15px;
            border-bottom: 1px solid #eee;
        }
        .breadcrumb {
            padding: 20px 0;
            font-size: 0.95rem;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--secondary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-container {
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            padding: 40px 0;
            margin-bottom: 40px;
            border-radius: var(--radius);
            text-align: center;
            color: white;
        }
        .search-box {
            max-width: 600px;
            margin: 20px auto 0;
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 18px 25px;
            border: none;
            border-radius: 50px 0 0 50px;
            font-size: 1.1rem;
            outline: none;
        }
        .search-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 35px;
            border-radius: 0 50px 50px 0;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: #ff5a1f;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 40px 0;
        }
        @media (max-width: 768px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-bottom: 20px;
            margin-bottom: 30px;
            border-bottom: 2px solid var(--light);
            font-size: 0.95rem;
            color: var(--gray);
        }
        .update-time {
            background: #e8f4f4;
            padding: 8px 15px;
            border-radius: 20px;
            color: var(--accent);
            font-weight: 600;
        }
        h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            color: var(--dark);
            margin-bottom: 25px;
            border-left: 6px solid var(--primary);
            padding-left: 20px;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary);
            margin: 50px 0 25px;
            padding-bottom: 15px;
            border-bottom: 2px dashed #eaeaea;
        }
        h3 {
            font-size: 1.6rem;
            color: var(--dark);
            margin: 35px 0 20px;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--primary);
            margin: 25px 0 15px;
        }
        p {
            margin-bottom: 22px;
            text-align: justify;
        }
        .intro {
            font-size: 1.25rem;
            color: var(--secondary);
            font-weight: 500;
            padding: 20px;
            background: #f0f7ff;
            border-radius: var(--radius);
            margin-bottom: 35px;
        }
        .highlight {
            background: linear-gradient(120deg, #fffbcc 0%, #fffbcc 100%);
            padding: 3px 6px;
            border-radius: 4px;
            font-weight: 600;
        }
        .featured-img {
            width: 100%;
            height: auto;
            border-radius: var(--radius);
            margin: 30px 0;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
            transition: var(--transition);
        }
        .featured-img:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .content-block {
            margin-bottom: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid #eee;
        }
        .link-list {
            background: #f9f9f9;
            padding: 25px;
            border-radius: var(--radius);
            margin: 30px 0;
        }
        .link-list a {
            color: var(--secondary);
            text-decoration: none;
            font-weight: 600;
            display: inline-block;
            margin: 8px 15px 8px 0;
            padding: 8px 16px;
            background: white;
            border-radius: 30px;
            border: 1px solid #ddd;
            transition: var(--transition);
        }
        .link-list a:hover {
            background: var(--secondary);
            color: white;
            border-color: var(--secondary);
            transform: translateY(-3px);
        }
        .stat-box {
            background: linear-gradient(135deg, var(--secondary), #003366);
            color: white;
            padding: 25px;
            border-radius: var(--radius);
            margin: 30px 0;
            text-align: center;
        }
        .stat-number {
            font-size: 3.5rem;
            font-weight: 800;
            display: block;
            line-height: 1;
            margin-bottom: 10px;
        }
        .stat-label {
            font-size: 1.2rem;
            opacity: 0.9;
        }
        .quote {
            border-left: 5px solid var(--accent);
            padding: 25px;
            margin: 35px 0;
            background: #f0fafa;
            font-style: italic;
            font-size: 1.2rem;
            color: var(--dark);
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: white;
            padding: 25px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.4rem;
            color: var(--secondary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--light);
        }
        .download-platforms {
            list-style: none;
        }
        .download-platforms li {
            padding: 15px;
            margin-bottom: 12px;
            background: #f8f9fa;
            border-radius: 8px;
            border-left: 4px solid var(--primary);
            transition: var(--transition);
        }
        .download-platforms li:hover {
            background: #eef7ff;
            transform: translateX(5px);
        }
        .platform-link {
            text-decoration: none;
            color: var(--dark);
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .platform-link i {
            color: var(--primary);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 2rem;
            color: #FFC107;
            margin: 15px 0;
        }
        .rate-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            margin: 10px 5px;
            transition: var(--transition);
        }
        .rate-btn:hover {
            background: #ff5a1f;
            transform: scale(1.05);
        }
        .comments-section {
            background: white;
            padding: 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 50px 0;
        }
        .comment-form {
            display: grid;
            gap: 20px;
            margin-bottom: 40px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-input, .form-textarea {
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            font-family: inherit;
            transition: var(--transition);
        }
        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0, 166, 166, 0.1);
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 18px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            justify-self: start;
        }
        .submit-btn:hover {
            background: #003a6d;
            transform: translateY(-3px);
        }
        .comment {
            padding: 25px;
            border: 1px solid #eee;
            border-radius: var(--radius);
            margin-bottom: 25px;
            background: #fcfcfc;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 15px;
            font-size: 0.95rem;
            color: var(--gray);
        }
        .site-footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 30px;
            margin-top: 80px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            margin-bottom: 20px;
            display: block;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            display: block;
            margin-bottom: 12px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 8px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: var(--radius);
            margin: 15px 0;
        }
        friend-link a {
            color: #4FC3F7;
            text-decoration: none;
            font-weight: 600;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #aaa;
            font-size: 0.95rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .bold {
            font-weight: 700;
            color: var(--secondary);
        }
        .text-center {
            text-align: center;
        }
        .mb-30 {
            margin-bottom: 30px;
        }
        .mt-30 {
            margin-top: 30px;
        }
        .hidden {
            display: none;
        }
        @media (max-width: 768px) {
            .article-content, .sidebar-widget, .comments-section {
                padding: 25px;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
        }