* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #1a5fb4; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #e95420; }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header { background: #0c2340; color: white; padding: 1rem 0; 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; }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #ff6b35, #00b4d8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
        }
        .my-logo:hover { opacity: 0.9; }
        nav ul { display: flex; list-style: none; gap: 2rem; }
        nav a { color: #fff; font-weight: 600; padding: 0.5rem; border-radius: 4px; }
        nav a:hover { background: rgba(255,255,255,0.15); }
        .hamburger { display: none; font-size: 1.8rem; cursor: pointer; }
        .breadcrumb { padding: 1rem 0; font-size: 0.9rem; color: #666; background: #f0f4f8; }
        .breadcrumb a { color: #555; }
        .breadcrumb span { color: #999; }
        main { flex: 1; padding: 2rem 0; }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 350px;
            gap: 3rem;
        }
        article {
            background: white;
            padding: 3rem;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.06);
            line-height: 1.85;
        }
        h1 { color: #0c2340; font-size: 2.8rem; margin-bottom: 1.5rem; line-height: 1.3; border-bottom: 4px solid #ff6b35; padding-bottom: 0.5rem; }
        h2 { color: #1a5fb4; font-size: 2rem; margin: 2.5rem 0 1rem; padding-top: 1rem; border-top: 2px dashed #e0e6ed; }
        h3 { color: #e95420; font-size: 1.6rem; margin: 2rem 0 1rem; }
        h4 { color: #555; font-size: 1.3rem; margin: 1.8rem 0 0.8rem; }
        p { margin-bottom: 1.5rem; text-align: justify; }
        .intro { font-size: 1.2rem; color: #444; background: #f8fafc; padding: 1.5rem; border-left: 5px solid #00b4d8; border-radius: 8px; margin-bottom: 2.5rem; }
        strong { color: #0c2340; font-weight: 700; }
        em { color: #666; }
        blockquote {
            background: linear-gradient(to right, #f0f7ff, #e1f0ff);
            border-left: 6px solid #1a5fb4;
            padding: 1.5rem 2rem;
            margin: 2rem 0;
            font-style: italic;
            border-radius: 0 12px 12px 0;
        }
        ul, ol { margin-left: 2rem; margin-bottom: 1.5rem; }
        li { margin-bottom: 0.5rem; }
        .highlight-box {
            background: #fff8e1;
            border: 2px solid #ffd54f;
            padding: 1.5rem;
            border-radius: 12px;
            margin: 2rem 0;
        }
        .featured-img {
            width: 100%;
            border-radius: 12px;
            margin: 2.5rem auto;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            border: 1px solid #e0e6ed;
        }
        .link-list {
            background: #f9f9f9;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .update-time { font-size: 0.9rem; color: #777; text-align: right; margin-top: 3rem; padding-top: 1rem; border-top: 1px solid #eee; }
        aside { display: flex; flex-direction: column; gap: 2rem; }
        .widget {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .widget h3 { font-size: 1.4rem; margin-top: 0; border-bottom: 2px solid #ff6b35; padding-bottom: 0.5rem; }
        .search-form input, .comment-form input, .comment-form textarea, .rating-form select {
            width: 100%;
            padding: 0.9rem;
            margin-bottom: 1rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
        }
        .search-form button, .comment-form button, .rating-form button {
            background: linear-gradient(90deg, #1a5fb4, #2d7dd2);
            color: white;
            border: none;
            padding: 1rem 1.5rem;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            width: 100%;
            transition: opacity 0.3s;
        }
        button:hover { opacity: 0.9; }
        .stars { display: flex; gap: 5px; margin: 1rem 0; }
        .star { color: #ffd700; font-size: 1.5rem; cursor: pointer; }
        .comments-list .comment { border-bottom: 1px solid #eee; padding: 1rem 0; }
        .comment-author { font-weight: bold; color: #0c2340; }
        footer { background: #0c2340; color: #ccc; padding: 3rem 0 1.5rem; margin-top: 3rem; }
        .footer-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; }
        .footer-section h4 { color: #ff6b35; font-size: 1.3rem; margin-bottom: 1.5rem; }
        friend-link { display: block; margin-bottom: 0.8rem; }
        friend-link a { color: #a0c3ff; }
        friend-link a:hover { color: #ff9a3d; }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #2a4365;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content-wrapper { grid-template-columns: 1fr; }
            article { padding: 2rem; }
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .header-container { flex-wrap: wrap; }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0c2340;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                border-top: 1px solid #2a4365;
            }
            nav.active ul { display: flex; }
            .hamburger { display: block; }
            .widget { padding: 1.5rem; }
        }