*,
        *::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, sans-serif;
            background: #f8f9fc;
            color: #1e1e2a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: #2a6df4;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #1a4bbf;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.6rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            color: #0d0d1a;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4rem;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 3px solid #e6e9f0;
            padding-bottom: 0.3rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #1e2a4a;
        }
        h4 {
            font-size: 1.1rem;
            color: #2c3e5a;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b0e1e 0%, #1a2645 100%);
            color: #fff;
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 999;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 12px 20px;
            max-width: 1120px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(to right, #f9d976, #f39c12);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            letter-spacing: 1px;
            color: #aab4d0;
            -webkit-text-fill-color: #aab4d0;
            display: block;
            line-height: 1;
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.6rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            border-color: #f9d976;
        }
        .primary-nav {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .primary-nav a {
            color: #e0e4f0;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: 0.2s;
            white-space: nowrap;
        }
        .primary-nav a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #f9d976;
            text-decoration: none;
        }
        .primary-nav a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        @media (max-width: 820px) {
            .nav-toggle {
                display: inline-block;
            }
            .primary-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #111a2e;
                padding: 16px 12px;
                border-radius: 0 0 16px 16px;
                margin-top: 10px;
                gap: 6px;
            }
            .primary-nav.open {
                display: flex;
            }
            .primary-nav a {
                padding: 10px 16px;
                border-radius: 10px;
                width: 100%;
            }
        }
        .breadcrumb {
            background: #eef1f7;
            padding: 10px 20px;
            font-size: 0.9rem;
            border-bottom: 1px solid #dce0ec;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 0;
            margin: 0 auto;
            max-width: 1120px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #7a87a3;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #2a6df4;
        }
        .breadcrumb .current {
            color: #4a5a7a;
            font-weight: 500;
        }
        .search-section {
            background: #eef1f7;
            padding: 16px 20px;
            border-bottom: 1px solid #dce0ec;
        }
        .search-form {
            display: flex;
            max-width: 560px;
            margin: 0 auto;
            gap: 8px;
        }
        .search-form input {
            flex: 1;
            padding: 12px 18px;
            border: 2px solid #ccd3e3;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: 0.25s;
            background: #fff;
        }
        .search-form input:focus {
            border-color: #2a6df4;
            box-shadow: 0 0 0 4px rgba(42, 109, 244, 0.12);
        }
        .search-form button {
            background: #2a6df4;
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 0 24px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: 0.2s;
        }
        .search-form button:hover {
            background: #1a4bbf;
            transform: scale(1.02);
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 30px 20px 50px;
            max-width: 1120px;
            margin: 0 auto;
        }
        @media (max-width: 820px) {
            .main-grid {
                grid-template-columns: 1fr;
                gap: 30px;
                padding: 20px 16px 40px;
            }
        }
        .article-body {
            background: #fff;
            border-radius: 20px;
            padding: 30px 32px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
        }
        @media (max-width: 600px) {
            .article-body {
                padding: 18px 16px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
        }
        .article-body .featured-img {
            margin: 24px 0 28px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.08);
        }
        .article-body .featured-img img {
            width: 100%;
            object-fit: cover;
        }
        .img-caption {
            font-size: 0.85rem;
            color: #6a7a9a;
            margin-top: 6px;
            text-align: center;
            font-style: italic;
        }
        .last-updated {
            display: inline-block;
            background: #f0f4fe;
            color: #1a4bbf;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 18px;
        }
        .last-updated i {
            margin-right: 6px;
        }
        .highlight-box {
            background: #f0f6ff;
            border-left: 5px solid #2a6df4;
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .highlight-box strong {
            color: #0b1a3a;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .stat-card {
            background: #f4f7fc;
            border-radius: 14px;
            padding: 16px 14px;
            text-align: center;
            border: 1px solid #e2e8f2;
        }
        .stat-card .num {
            font-size: 2rem;
            font-weight: 800;
            color: #1a4bbf;
            display: block;
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: #4a5a7a;
            font-weight: 500;
        }
        .btn-score {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #f39c12;
            color: #fff;
            border: none;
            padding: 8px 20px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: 0.2s;
        }
        .btn-score:hover {
            background: #d68910;
            transform: translateY(-2px);
        }
        .sidebar {
            background: #fff;
            border-radius: 20px;
            padding: 24px 20px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            align-self: start;
            position: sticky;
            top: 90px;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #eef1f7;
            padding-bottom: 10px;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 12px 0 20px;
        }
        .sidebar li {
            padding: 6px 0;
            border-bottom: 1px solid #f0f3f9;
        }
        .sidebar li a {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #2a3a5a;
            font-weight: 500;
        }
        .sidebar li a:hover {
            color: #2a6df4;
        }
        .sidebar li a i {
            color: #7a8aa8;
            font-size: 0.8rem;
        }
        @media (max-width: 820px) {
            .sidebar {
                position: static;
                margin-top: 10px;
            }
        }
        .comment-section,
        .score-section {
            background: #f8faff;
            border-radius: 16px;
            padding: 20px 24px;
            margin-top: 30px;
            border: 1px solid #e4eaf4;
        }
        .comment-section h3,
        .score-section h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #dce2ef;
            border-radius: 12px;
            font-size: 0.95rem;
            margin-bottom: 12px;
            font-family: inherit;
            transition: 0.2s;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: #2a6df4;
            outline: none;
        }
        .comment-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .comment-form button,
        .score-form button {
            background: #2a6df4;
            color: #fff;
            border: none;
            padding: 10px 28px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            font-size: 0.95rem;
        }
        .comment-form button:hover,
        .score-form button:hover {
            background: #1a4bbf;
            transform: scale(1.02);
        }
        .score-select {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin: 10px 0 16px;
        }
        .score-select label {
            background: #eef2f9;
            padding: 6px 18px;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 500;
            transition: 0.2s;
            border: 2px solid transparent;
        }
        .score-select label:hover {
            background: #dce4f2;
        }
        .score-select input[type="radio"] {
            display: none;
        }
        .score-select input[type="radio"]:checked+label {
            background: #2a6df4;
            color: #fff;
            border-color: #1a4bbf;
        }
        .site-footer {
            background: #0b0e1e;
            color: #b0bcd4;
            padding: 40px 20px 24px;
            margin-top: 40px;
        }
        .footer-inner {
            max-width: 1120px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .footer-inner friend-link {
            display: block;
            background: #151e32;
            padding: 16px 20px;
            border-radius: 14px;
            font-size: 0.95rem;
        }
        .footer-inner friend-link a {
            color: #8ab0ff;
            display: inline-block;
            margin: 4px 12px 4px 0;
        }
        .footer-inner friend-link a:hover {
            color: #f9d976;
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #1f2a44;
            font-size: 0.85rem;
            color: #7a8aaa;
        }
        .copyright strong {
            color: #c8d4ec;
        }
        @media (max-width: 600px) {
            .footer-inner {
                grid-template-columns: 1fr;
            }
        }
        .toc {
            background: #f4f7fd;
            border-radius: 14px;
            padding: 16px 20px;
            margin: 20px 0 28px;
            border: 1px solid #e2e9f5;
        }
        .toc summary {
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            color: #0b1a3a;
        }
        .toc ul {
            margin-top: 10px;
            columns: 2;
            column-gap: 24px;
        }
        .toc li {
            break-inside: avoid;
            padding: 3px 0;
        }
        @media (max-width: 500px) {
            .toc ul {
                columns: 1;
            }
        }
        .btn-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #1a2645;
            color: #f9d976;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            transition: 0.25s;
            border: none;
            cursor: pointer;
            opacity: 0.7;
            z-index: 99;
        }
        .btn-top:hover {
            opacity: 1;
            transform: translateY(-4px);
            background: #f39c12;
            color: #0b0e1e;
        }
        .author-badge {
            display: flex;
            align-items: center;
            gap: 14px;
            background: #f4f7fc;
            padding: 12px 18px;
            border-radius: 14px;
            margin: 16px 0 20px;
            border: 1px solid #e2e8f2;
        }
        .author-badge .avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, #2a6df4, #f39c12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.2rem;
        }
        .author-badge .info strong {
            display: block;
            font-size: 1rem;
        }
        .author-badge .info span {
            font-size: 0.85rem;
            color: #5a6a8a;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 0.95rem;
        }
        .data-table th {
            background: #1a2645;
            color: #fff;
            padding: 10px 14px;
            text-align: left;
        }
        .data-table td {
            padding: 10px 14px;
            border-bottom: 1px solid #e2e8f2;
        }
        .data-table tr:nth-child(even) {
            background: #f8faff;
        }
        @media (max-width: 600px) {
            .data-table {
                font-size: 0.85rem;
            }
            .data-table th,
            .data-table td {
                padding: 6px 8px;
            }
        }