*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.75;
            color: #1a1a2e;
            background-color: #f8f9fc;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #e74c3c;
            text-decoration: none;
            transition: color .2s;
        }
        a:hover {
            color: #c0392b;
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            padding: 16px 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .my-logo {
            font-size: 28px;
            font-weight: 900;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: #f1c40f;
            font-size: 32px;
        }
        .my-logo:hover {
            text-decoration: none;
            color: #f1c40f;
        }
        .main-nav {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: rgba(255, 255, 255, 0.85);
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 6px;
            transition: background .2s;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.10);
            color: #fff;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 26px;
            cursor: pointer;
        }
        .breadcrumb-wrap {
            background: #fff;
            border-bottom: 1px solid #eee;
            padding: 10px 0;
            font-size: 14px;
        }
        .breadcrumb-wrap ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .breadcrumb-wrap li::after {
            content: '›';
            margin-left: 8px;
            color: #999;
        }
        .breadcrumb-wrap li:last-child::after {
            content: '';
        }
        .breadcrumb-wrap a {
            color: #666;
        }
        .search-section {
            background: #fff;
            padding: 24px 0;
            border-bottom: 1px solid #eee;
        }
        .search-form {
            display: flex;
            max-width: 700px;
            margin: 0 auto;
            gap: 12px;
        }
        .search-form input {
            flex: 1;
            padding: 14px 20px;
            border: 2px solid #e1e1e8;
            border-radius: 50px;
            font-size: 16px;
            outline: none;
            transition: border-color .2s;
        }
        .search-form input:focus {
            border-color: #e74c3c;
        }
        .search-form button {
            background: #e74c3c;
            color: #fff;
            border: none;
            border-radius: 50px;
            padding: 14px 28px;
            font-size: 16px;
            cursor: pointer;
            transition: background .2s;
        }
        .search-form button:hover {
            background: #c0392b;
        }
        .hero {
            padding: 60px 0 40px;
            text-align: center;
            background: linear-gradient(to bottom, #f8f9fc, #fff);
        }
        .hero h1 {
            font-size: 44px;
            line-height: 1.2;
            font-weight: 900;
            color: #1a1a2e;
            margin-bottom: 16px;
        }
        .hero h1 span {
            color: #e74c3c;
        }
        .hero p {
            font-size: 18px;
            color: #555;
            max-width: 700px;
            margin: 0 auto;
        }
        .content-wrap {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 50px 0;
        }
        .article {
            background: #fff;
            border-radius: 14px;
            padding: 40px;
            box-shadow: 0 2px 14px rgba(0, 0, 0, 0.05);
        }
        .article h2 {
            font-size: 30px;
            color: #1a1a2e;
            border-left: 5px solid #e74c3c;
            padding-left: 18px;
            margin: 50px 0 20px;
        }
        .article h2:first-child {
            margin-top: 0;
        }
        .article h3 {
            font-size: 23px;
            color: #16213e;
            margin: 30px 0 14px;
        }
        .article h4 {
            font-size: 18px;
            color: #333;
            margin: 20px 0 10px;
            font-weight: 600;
        }
        .article p {
            margin-bottom: 18px;
            color: #333;
        }
        .article img.article-img {
            border-radius: 12px;
            margin: 25px auto;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            max-width: 100%;
        }
        .article-figure {
            text-align: center;
            margin: 30px 0;
        }
        .article-figure figcaption {
            font-size: 14px;
            color: #888;
            margin-top: 8px;
            font-style: italic;
        }
        .callout {
            background: #fef9e7;
            border-left: 5px solid #f1c40f;
            padding: 16px 20px;
            border-radius: 0 10px 10px 0;
            margin: 25px 0;
        }
        .callout p {
            margin: 0;
        }
        .tip-box {
            background: #eafaf1;
            border-left: 5px solid #28b463;
            padding: 16px 20px;
            border-radius: 0 10px 10px 0;
            margin: 25px 0;
        }
        .tip-box p {
            margin: 0;
        }
        .article table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 15px;
        }
        .article table th,
        .article table td {
            padding: 12px 16px;
            border: 1px solid #eee;
            text-align: left;
        }
        .article table th {
            background-color: #f8f9fc;
            font-weight: 600;
        }
        .article table tr:hover {
            background-color: #fafafa;
        }
        .article ul,
        .article ol {
            margin: 0 0 18px 24px;
            color: #333;
        }
        .article li {
            margin-bottom: 8px;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: #fff;
            border-radius: 14px;
            padding: 24px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
        }
        .sidebar-widget h3 {
            font-size: 18px;
            margin-bottom: 14px;
            color: #1a1a2e;
            border-bottom: 2px solid #f1c40f;
            padding-bottom: 8px;
        }
        .sidebar-widget ul {
            list-style: none;
            margin: 0;
        }
        .sidebar-widget li {
            margin-bottom: 10px;
        }
        .sidebar-widget li a {
            color: #444;
            font-size: 14px;
        }
        .sidebar-widget li a:hover {
            color: #e74c3c;
        }
        .rating-widget {
            text-align: center;
        }
        .rating-stars {
            font-size: 26px;
            color: #f1c40f;
            margin: 8px 0;
        }
        .rating-widget .score-value {
            font-size: 20px;
            font-weight: 700;
            color: #333;
        }
        .comment-form-wrap {
            margin-top: 50px;
            padding-top: 30px;
            border-top: 2px solid #f0f0f0;
        }
        .comment-form-wrap h3 {
            margin-bottom: 16px;
        }
        .comment-form textarea {
            width: 100%;
            min-height: 120px;
            padding: 14px;
            border: 2px solid #e1e1e8;
            border-radius: 8px;
            font-family: inherit;
            font-size: 15px;
            resize: vertical;
            outline: none;
            transition: border-color .2s;
        }
        .comment-form textarea:focus {
            border-color: #e74c3c;
        }
        .comment-form input[type="text"] {
            width: 100%;
            padding: 12px 14px;
            border: 2px solid #e1e1e8;
            border-radius: 8px;
            font-size: 15px;
            margin: 12px 0;
            outline: none;
        }
        .comment-form input[type="text"]:focus {
            border-color: #e74c3c;
        }
        .comment-form button {
            background: #e74c3c;
            color: #fff;
            border: none;
            padding: 12px 30px;
            border-radius: 50px;
            font-size: 15px;
            cursor: pointer;
            transition: background .2s;
        }
        .comment-form button:hover {
            background: #c0392b;
        }
        .score-form {
            display: flex;
            align-items: center;
            gap: 12px;
            justify-content: center;
            margin-top: 10px;
        }
        .score-form select {
            padding: 10px;
            border: 2px solid #e1e1e8;
            border-radius: 8px;
            font-size: 14px;
            outline: none;
        }
        .score-form button {
            background: #f1c40f;
            color: #1a1a2e;
            border: none;
            padding: 10px 20px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background .2s;
        }
        .score-form button:hover {
            background: #d4ac0d;
        }
        .site-footer {
            background: #0f1626;
            color: #aab;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-grid h4 {
            color: #fff;
            font-size: 18px;
            margin-bottom: 14px;
        }
        .footer-grid a {
            color: #99a;
            font-size: 14px;
            display: block;
            margin-bottom: 8px;
        }
        .footer-grid a:hover {
            color: #f1c40f;
        }
        .friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.06);
            padding: 14px 20px;
            border-radius: 10px;
            margin-bottom: 10px;
            transition: background .2s;
        }
        .friend-link:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .friend-link a {
            color: #f1c40f;
            font-weight: 500;
        }
        .copyright {
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            font-size: 14px;
            color: #778;
        }
        .copyright p {
            margin-bottom: 4px;
        }
        .go-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: #e74c3c;
            color: #fff;
            border: none;
            border-radius: 50%;
            font-size: 20px;
            cursor: pointer;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform .2s, background .2s;
            z-index: 999;
        }
        .go-top:hover {
            background: #c0392b;
            transform: translateY(-3px);
        }
        @media(max-width:992px) {
            .content-wrap {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(0, 0, 0, 0.10);
                padding: 14px;
                border-radius: 10px;
            }
            .main-nav.open {
                display: flex;
            }
            .hero h1 {
                font-size: 30px;
            }
            .article {
                padding: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
                padding: 0 16px;
            }
            .search-form button {
                width: 100%;
            }
            .go-top {
                display: none;
            }
        }
        @media(max-width:480px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 25px;
            }
            .article {
                padding: 16px;
                border-radius: 8px;
            }
            .article h2 {
                font-size: 24px;
            }
            .article h3 {
                font-size: 19px;
            }
        }