* { 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%, #e4e8f0 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #2c5aa0; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #e63946; }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: linear-gradient(90deg, #1a237e, #283593);
            color: white;
            padding: 1rem 2rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(to right, #ff9a00, #ff3c00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
        }
        .my-logo a { background: none; -webkit-text-fill-color: inherit; }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: #e3f2fd;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .desktop-nav a:hover {
            background: rgba(255,255,255,0.15);
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: white;
        }
        .mobile-nav {
            display: none;
            background: #1a237e;
            padding: 1rem;
            flex-direction: column;
            gap: 1rem;
            animation: slideDown 0.3s ease;
        }
        .mobile-nav.active { display: flex; }
        @keyframes slideDown {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .breadcrumb {
            background: #e8eaf6;
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #c5cae9;
        }
        .breadcrumb a { color: #5c6bc0; }
        .breadcrumb i { margin: 0 0.5rem; }
        .main-container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
            flex-grow: 1;
        }
        @media (max-width: 992px) {
            .main-container { grid-template-columns: 1fr; }
        }
        article {
            background: white;
            border-radius: 12px;
            padding: 3rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 4px solid #ff9a00;
            padding-bottom: 1rem;
        }
        h2 { font-size: 2rem; color: #283593; margin: 2.5rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 2px dashed #c5cae9; }
        h3 { font-size: 1.6rem; color: #3949ab; margin: 2rem 0 1rem; }
        h4 { font-size: 1.3rem; color: #5c6bc0; margin: 1.5rem 0 0.8rem; }
        p { margin-bottom: 1.5rem; text-align: justify; }
        .intro {
            font-size: 1.2rem;
            background: #f3f4ff;
            padding: 1.5rem;
            border-left: 5px solid #ff9a00;
            margin-bottom: 2.5rem;
            border-radius: 0 8px 8px 0;
        }
        .highlight {
            background: linear-gradient(120deg, #ffeaa7 0%, #ffeaa7 100%);
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
            border-left: 4px solid #fdcb6e;
        }
        .feature-img {
            width: 100%;
            border-radius: 12px;
            margin: 2.5rem auto;
            box-shadow: 0 15px 25px rgba(0,0,0,0.1);
            border: 3px solid #e3f2fd;
        }
        .link-list {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
        }
        .link-list a {
            display: block;
            padding: 0.8rem;
            background: white;
            border-radius: 6px;
            border: 1px solid #dee2e6;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .link-list a:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        aside {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 8px 20px rgba(0,0,0,0.06);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .widget { margin-bottom: 2.5rem; }
        .widget h3 {
            font-size: 1.4rem;
            color: #1a237e;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ff9a00;
        }
        .search-form { display: flex; }
        .search-input {
            flex-grow: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid #c5cae9;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-btn {
            background: #3949ab;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-btn:hover { background: #283593; }
        .rating-widget .stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .stars i {
            color: #ffd700;
            font-size: 1.8rem;
            cursor: pointer;
            transition: color 0.2s;
        }
        .stars i:hover { color: #ffaa00; }
        .rating-form { margin-top: 1rem; }
        .rating-form select, .rating-form textarea {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 2px solid #c5cae9;
            border-radius: 6px;
        }
        .rating-form button {
            background: #00c853;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 6px;
            cursor: pointer;
            width: 100%;
            font-weight: bold;
            transition: background 0.3s;
        }
        .rating-form button:hover { background: #00a844; }
        .comment-list .comment {
            border-bottom: 1px solid #eee;
            padding: 1rem 0;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.5rem;
            font-size: 0.9rem;
            color: #666;
        }
        .comment-form input, .comment-form textarea {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 2px solid #c5cae9;
            border-radius: 6px;
        }
        footer {
            background: #1a237e;
            color: #e3f2fd;
            padding: 3rem 2rem 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 2rem;
        }
        .footer-logo { font-size: 2rem; font-weight: 800; color: #ff9a00; }
        friend-link {
            display: block;
            margin: 0.5rem 0;
            color: #bbdefb;
        }
        friend-link:hover { color: white; text-decoration: underline; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #3949ab;
            font-size: 0.9rem;
            color: #90a4ae;
        }
        @media (max-width: 768px) {
            .header-container { flex-wrap: wrap; }
            .desktop-nav { display: none; }
            .hamburger { display: block; }
            .main-container, .breadcrumb { padding: 0 1rem; }
            article { padding: 2rem 1.5rem; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .footer-content { grid-template-columns: 1fr; gap: 2rem; }
        }
        .emoji { font-size: 1.2em; margin-right: 0.3rem; }
        .bold { font-weight: 800; color: #1a237e; }
        .update-time {
            background: #e8f5e9;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            display: inline-block;
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
            color: #2e7d32;
        }
        .tag {
            display: inline-block;
            background: #e3f2fd;
            color: #3949ab;
            padding: 0.3rem 0.8rem;
            border-radius: 15px;
            font-size: 0.85rem;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
        }