*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f5f7fc;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0a0a23 0%, #1a1a4e 100%);
            color: white;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            color: #ffd700;
            text-decoration: none;
            letter-spacing: -0.5px;
            text-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.02);
            color: #ffe44d;
        }
        .my-logo span {
            color: #fff;
            font-weight: 300;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-list li a {
            color: #e0e0ff;
            text-decoration: none;
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list li a:hover,
        .nav-list li a.active {
            background: rgba(255, 215, 0, 0.15);
            color: #ffd700;
        }
        .nav-list li a i {
            font-size: 0.85rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid #ffd700;
            color: #ffd700;
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.3s;
        }
        .hamburger:hover {
            background: #ffd700;
            color: #0a0a23;
        }
        .breadcrumb {
            background: #eef1f8;
            padding: 12px 0;
            border-bottom: 1px solid #dde1ec;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 4px;
            font-size: 0.85rem;
        }
        .breadcrumb ul li {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .breadcrumb ul li a {
            color: #2a3b6e;
            text-decoration: none;
        }
        .breadcrumb ul li a:hover {
            text-decoration: underline;
        }
        .breadcrumb ul li+li::before {
            content: "›";
            color: #888;
            margin-right: 6px;
            font-weight: 700;
        }
        .breadcrumb ul li:last-child {
            color: #666;
            font-weight: 600;
        }
        .main-wrap {
            padding: 40px 0 60px;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 900;
            color: #0a0a23;
            margin-bottom: 12px;
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        h1 i {
            color: #ffd700;
        }
        .last-updated {
            display: inline-block;
            background: #eef1f8;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #555;
            margin-bottom: 28px;
            border-left: 4px solid #ffd700;
        }
        .last-updated i {
            margin-right: 6px;
            color: #ffd700;
        }
        .article-meta {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: #777;
            margin-bottom: 30px;
            border-bottom: 1px solid #e0e4f0;
            padding-bottom: 16px;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: #0a0a23;
            margin-top: 48px;
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #ffd700;
            display: inline-block;
        }
        h2 i {
            color: #ffd700;
            margin-right: 8px;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #1a2a4a;
            margin-top: 32px;
            margin-bottom: 12px;
        }
        h3 i {
            color: #2a6f97;
            margin-right: 8px;
            font-size: 1.2rem;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #2a3b6e;
            margin-top: 24px;
            margin-bottom: 8px;
        }
        p {
            margin-bottom: 18px;
            font-size: 1.05rem;
            color: #2d2d44;
        }
        .highlight-box {
            background: linear-gradient(135deg, #f0f4ff, #e8edf8);
            padding: 24px 28px;
            border-radius: 16px;
            border-left: 6px solid #ffd700;
            margin: 28px 0;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .highlight-box strong {
            color: #0a0a23;
        }
        .code-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 16px;
            margin: 24px 0 32px;
        }
        .code-card {
            background: white;
            border-radius: 14px;
            padding: 18px 20px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            border: 1px solid #e8ecf4;
            transition: all 0.3s ease;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .code-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
            border-color: #ffd700;
        }
        .code-card .code-name {
            font-weight: 700;
            color: #0a0a23;
            font-size: 1.05rem;
        }
        .code-card .code-name i {
            color: #ffd700;
            margin-right: 8px;
        }
        .code-card .code-status {
            font-size: 0.8rem;
            padding: 4px 14px;
            border-radius: 30px;
            font-weight: 600;
        }
        .code-status.active {
            background: #d4edda;
            color: #155724;
        }
        .code-status.expired {
            background: #f8d7da;
            color: #721c24;
        }
        .code-status.new {
            background: #cce5ff;
            color: #004085;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            font-size: 0.95rem;
        }
        .btn-gold {
            background: #ffd700;
            color: #0a0a23;
        }
        .btn-gold:hover {
            background: #ffe44d;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.3);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #ffd700;
            color: #ffd700;
        }
        .btn-outline:hover {
            background: #ffd700;
            color: #0a0a23;
        }
        .featured-img {
            width: 100%;
            border-radius: 18px;
            margin: 28px 0 24px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            border: 1px solid #e8ecf4;
        }
        .img-caption {
            font-size: 0.85rem;
            color: #888;
            text-align: center;
            margin-top: -16px;
            margin-bottom: 28px;
        }
        .search-section {
            background: white;
            padding: 28px 32px;
            border-radius: 18px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            margin: 32px 0;
            border: 1px solid #e8ecf4;
        }
        .search-section h3 {
            margin-top: 0;
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border-radius: 30px;
            border: 2px solid #dde1ec;
            font-size: 1rem;
            outline: none;
            transition: 0.3s;
        }
        .search-form input:focus {
            border-color: #ffd700;
            box-shadow: 0 0 0 4px rgba(255, 215, 0, 0.1);
        }
        .search-form button {
            padding: 14px 32px;
            border-radius: 30px;
            background: #0a0a23;
            color: white;
            border: none;
            font-weight: 600;
            cursor: pointer;
            transition: 0.3s;
            font-size: 1rem;
        }
        .search-form button:hover {
            background: #ffd700;
            color: #0a0a23;
        }
        .comment-section,
        .rating-section {
            background: white;
            padding: 28px 32px;
            border-radius: 18px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            margin: 32px 0;
            border: 1px solid #e8ecf4;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 14px 18px;
            border-radius: 12px;
            border: 2px solid #dde1ec;
            font-size: 1rem;
            outline: none;
            transition: 0.3s;
            margin-bottom: 12px;
            font-family: inherit;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: #ffd700;
            box-shadow: 0 0 0 4px rgba(255, 215, 0, 0.08);
        }
        .comment-form textarea {
            min-height: 120px;
            resize: vertical;
        }
        .comment-form .form-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 150px;
        }
        .star-rating {
            display: flex;
            gap: 8px;
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            margin: 12px 0 18px;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            transition: 0.2s;
            color: #ddd;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #ffd700;
        }
        .rating-form select {
            padding: 12px 18px;
            border-radius: 12px;
            border: 2px solid #dde1ec;
            font-size: 1rem;
            outline: none;
            background: white;
            margin-bottom: 12px;
            width: 100%;
            max-width: 200px;
        }
        .site-footer {
            background: #0a0a23;
            color: #c0c0e0;
            padding: 40px 0 20px;
            margin-top: 40px;
            border-top: 4px solid #ffd700;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            margin-bottom: 28px;
        }
        .footer-col h4 {
            color: #ffd700;
            font-size: 1.1rem;
            margin-bottom: 14px;
            border-bottom: 1px solid #2a2a5a;
            padding-bottom: 8px;
        }
        .footer-col a {
            color: #b0b0d0;
            text-decoration: none;
            display: block;
            padding: 4px 0;
            transition: 0.3s;
            font-size: 0.9rem;
        }
        .footer-col a:hover {
            color: #ffd700;
            padding-left: 6px;
        }
        .footer-bottom {
            border-top: 1px solid #2a2a5a;
            padding-top: 18px;
            text-align: center;
            font-size: 0.85rem;
            color: #8888aa;
        }
        .footer-bottom .copyright {
            color: #ffd700;
        }
        friend-link {
            display: block;
            margin: 16px 0;
            padding: 14px 18px;
            background: #12123a;
            border-radius: 12px;
            border-left: 4px solid #ffd700;
        }
        friend-link a {
            color: #b0b0d0;
            text-decoration: none;
            padding: 4px 8px;
            display: inline-block;
            transition: 0.3s;
        }
        friend-link a:hover {
            color: #ffd700;
            text-decoration: underline;
        }
        friend-link span {
            color: #666;
            padding: 0 4px;
        }
        @media (max-width: 900px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0f0f2e;
                padding: 12px 0;
                border-radius: 12px;
                margin-top: 12px;
                gap: 2px;
            }
            .nav-list.show {
                display: flex;
            }
            .nav-list li a {
                padding: 10px 20px;
                border-radius: 0;
            }
            .hamburger {
                display: block;
            }
            .header-inner {
                align-items: center;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input {
                min-width: auto;
            }
            .code-list {
                grid-template-columns: 1fr;
            }
            .comment-form .form-row {
                flex-direction: column;
            }
            .star-rating {
                font-size: 1.6rem;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 500px) {
            .container {
                padding: 0 14px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .highlight-box {
                padding: 16px 18px;
            }
            .search-section,
            .comment-section,
            .rating-section {
                padding: 18px 16px;
            }
            .footer-inner {
                grid-template-columns: 1fr;
            }
            .breadcrumb ul {
                font-size: 0.75rem;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #ffd700;
            color: #0a0a23;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            text-decoration: none;
            transition: 0.3s;
            z-index: 999;
        }
        .scroll-top:hover {
            transform: translateY(-6px);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.4);
        }
        .inline-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
        }
        .inline-list li::before {
            content: "▸ ";
            color: #ffd700;
            font-weight: 700;
        }
        .tag {
            display: inline-block;
            background: #eef1f8;
            padding: 2px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            color: #2a3b6e;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.8rem;
            line-height: 1;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: white;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        th,
        td {
            padding: 12px 18px;
            text-align: left;
            border-bottom: 1px solid #e8ecf4;
        }
        th {
            background: #0a0a23;
            color: #ffd700;
            font-weight: 700;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f8f9ff;
        }