* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, 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; }
        a:hover { color: #e63946; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(90deg, #1a2a6c, #2c5aa0, #4a90e2);
            color: white;
            padding: 1.2rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            color: #FFD700;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            letter-spacing: -1px;
        }
        .my-logo span { color: white; }
        .my-logo:hover { text-decoration: none; opacity: 0.9; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: rgba(255, 255, 255, 0.2);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e9f1fa;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d0dff0;
        }
        .breadcrumb a { color: #555; }
        .breadcrumb span { color: #888; }
        main {
            flex: 1;
            padding: 2.5rem 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        article { background: white; padding: 2.5rem; border-radius: 12px; box-shadow: 0 6px 20px rgba(0,0,0,0.08); }
        h1 { color: #1a2a6c; font-size: 2.8rem; margin-bottom: 1.5rem; line-height: 1.2; border-bottom: 3px solid #FFD700; padding-bottom: 0.8rem; }
        h2 { color: #2c5aa0; font-size: 2rem; margin: 2.5rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 1px dashed #ccc; }
        h3 { color: #4a90e2; font-size: 1.6rem; margin: 2rem 0 0.8rem; }
        h4 { color: #666; font-size: 1.3rem; margin: 1.5rem 0 0.6rem; }
        p, li { margin-bottom: 1.2rem; font-size: 1.1rem; color: #444; }
        .lead { font-size: 1.3rem; font-weight: 500; color: #1a2a6c; background: #f0f7ff; padding: 1.2rem; border-left: 5px solid #4a90e2; border-radius: 0 8px 8px 0; margin-bottom: 2rem; }
        strong { color: #1a2a6c; }
        em { color: #e63946; }
        ul, ol { padding-left: 2rem; margin-bottom: 1.5rem; }
        blockquote {
            border-left: 4px solid #FFD700;
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: #555;
            background: #fffdf0;
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
        }
        .highlight-box {
            background: linear-gradient(145deg, #e3f2fd, #f3e5f5);
            border: 1px solid #c5cae9;
            border-radius: 10px;
            padding: 1.8rem;
            margin: 2rem 0;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
        }
        .img-container {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 800px;
        }
        .img-container img {
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            border: 5px solid white;
        }
        .caption {
            font-size: 0.95rem;
            color: #666;
            margin-top: 0.8rem;
            font-style: italic;
        }
        .update-time {
            display: inline-block;
            background: #2c5aa0;
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            font-size: 0.9rem;
            margin: 1rem 0 2rem;
        }
        aside { position: sticky; top: 120px; align-self: start; }
        .sidebar-widget {
            background: white;
            padding: 1.8rem;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            margin-bottom: 2rem;
        }
        .sidebar-widget h3 { font-size: 1.4rem; margin-top: 0; }
        .search-form input {
            width: 100%;
            padding: 0.9rem;
            border: 2px solid #d0dff0;
            border-radius: 8px;
            font-size: 1rem;
        }
        .search-form button {
            width: 100%;
            background: linear-gradient(90deg, #1a2a6c, #2c5aa0);
            color: white;
            border: none;
            padding: 0.9rem;
            border-radius: 8px;
            margin-top: 0.8rem;
            font-weight: bold;
            cursor: pointer;
            transition: opacity 0.3s;
        }
        .search-form button:hover { opacity: 0.9; }
        .rating-widget .stars {
            font-size: 1.8rem;
            color: #FFD700;
            margin: 0.5rem 0 1rem;
            cursor: pointer;
        }
        .rating-widget .stars span:hover,
        .rating-widget .stars span:hover ~ span { color: #ffcc00; }
        .comment-form textarea {
            width: 100%;
            padding: 0.9rem;
            border: 2px solid #d0dff0;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            min-height: 120px;
            resize: vertical;
        }
        .comment-form button {
            background: #e63946;
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: background 0.3s;
            margin-top: 0.8rem;
        }
        .comment-form button:hover { background: #d32f2f; }
        .link-list { list-style: none; padding-left: 0; }
        .link-list li { margin-bottom: 0.8rem; padding-left: 1.2rem; position: relative; }
        .link-list li:before {
            content: '🎯';
            position: absolute;
            left: 0;
            top: 2px;
        }
        footer {
            background: linear-gradient(90deg, #1a2a6c, #2c5aa0);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo { font-size: 2rem; font-weight: bold; color: #FFD700; }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.1);
            padding: 1rem;
            border-radius: 6px;
            margin-bottom: 0.8rem;
            transition: background 0.3s;
        }
        friend-link:hover { background: rgba(255,255,255,0.2); text-decoration: none; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.2);
            font-size: 0.9rem;
            color: #ccc;
        }
        @media (max-width: 992px) {
            .content-grid { grid-template-columns: 1fr; }
            aside { position: static; }
        }
        @media (max-width: 768px) {
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #1a2a6c;
                padding: 1rem;
                box-shadow: 0 8px 16px rgba(0,0,0,0.2);
                border-radius: 0 0 10px 10px;
            }
            .main-nav.active ul { display: flex; }
            .hamburger { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            article { padding: 1.8rem; }
        }