* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #2c5aa0; text-decoration: none; transition: color 0.3s ease, background-color 0.3s ease; }
        a:hover { color: #e63946; }
        img { max-width: 100%; height: auto; display: block; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .site-header {
            background: #1a2b4c;
            color: #fff;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover { opacity: 0.9; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #fff;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .main-nav a:hover, .main-nav a.active {
            background-color: #e63946;
            color: #fff;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #fff;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e9f1fa;
            font-size: 0.9rem;
        }
        .breadcrumb a { color: #555; }
        .breadcrumb a:hover { color: #e63946; }
        .breadcrumb span { color: #888; }
        .hero {
            background: linear-gradient(rgba(26, 43, 76, 0.85), rgba(26, 43, 76, 0.9)), url('https://images.unsplash.com/photo-1635070041078-e363dbe005cb?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
            color: white;
            text-align: center;
            padding: 4rem 2rem;
            margin-bottom: 3rem;
            border-radius: 0 0 20px 20px;
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 2rem;
        }
        .search-form {
            max-width: 600px;
            margin: 2rem auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1.1rem;
        }
        .search-btn {
            background: #e63946;
            color: white;
            border: none;
            padding: 1rem 2rem;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-btn:hover { background: #d32f2f; }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .content-grid { grid-template-columns: 1fr; }
        }
        article { background: white; padding: 2.5rem; border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.08); }
        article h2, article h3, article h4 {
            color: #1a2b4c;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #4ecdc4;
        }
        article h2 { font-size: 2.2rem; }
        article h3 { font-size: 1.8rem; }
        article h4 { font-size: 1.5rem; }
        article p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight {
            background: #e9f7fe;
            border-left: 5px solid #45b7d1;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
        }
        .tip { background: #fff8e1; border-left-color: #ffc107; }
        .warning { background: #ffebee; border-left-color: #e63946; }
        .article-img {
            margin: 2rem auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }
        .article-img figcaption {
            text-align: center;
            font-style: italic;
            padding: 0.8rem;
            color: #666;
            background: #f9f9f9;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
            padding: 1.5rem;
            background: #f0f7ff;
            border-radius: 10px;
        }
        .link-list a {
            display: block;
            padding: 0.8rem 1.2rem;
            background: white;
            border-radius: 6px;
            border: 1px solid #d1e3ff;
            font-weight: 600;
        }
        .link-list a:hover {
            background: #e63946;
            color: white;
            border-color: #e63946;
            transform: translateY(-3px);
            box-shadow: 0 5px 10px rgba(230, 57, 70, 0.3);
        }
        aside .widget {
            background: white;
            padding: 1.8rem;
            margin-bottom: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .widget h3 {
            color: #1a2b4c;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ff6b6b;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ffd700;
            margin: 1rem 0;
        }
        .stars i { cursor: pointer; transition: transform 0.2s; }
        .stars i:hover { transform: scale(1.2); }
        .form-group input, .form-group textarea, .form-group select {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
        }
        .form-group textarea { min-height: 120px; resize: vertical; }
        .submit-btn {
            background: #2c5aa0;
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 6px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: background 0.3s;
        }
        .submit-btn:hover { background: #1a2b4c; }
        .update-time {
            font-size: 0.9rem;
            color: #666;
            text-align: center;
            padding: 1rem;
            background: #f8f9fa;
            border-radius: 6px;
            margin-top: 1rem;
        }
        .site-footer {
            background: #1a2b4c;
            color: #ddd;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #4ecdc4;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #96ceb4;
            padding: 0.5rem 0;
            display: block;
            border-bottom: 1px dashed #2c5aa0;
        }
        friend-link a:hover {
            color: #ff6b6b;
            padding-left: 10px;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2c5aa0;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .hero h1 { font-size: 2.5rem; }
            .hero p { font-size: 1.1rem; }
            .header-content { flex-wrap: wrap; }
            .hamburger { display: block; }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active { max-height: 300px; margin-top: 1rem; }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li { width: 100%; text-align: center; }
            .main-nav a { display: block; padding: 1rem; border-bottom: 1px solid #2c5aa0; }
            article { padding: 1.5rem; }
            article h2 { font-size: 1.9rem; }
            .search-form { flex-direction: column; border-radius: 10px; }
            .search-input, .search-btn { border-radius: 0; width: 100%; }
        }