*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            background: #f4f7fb;
            color: #1e2a3a;
            line-height: 1.8;
            padding: 0;
            margin: 0;
        }
        a {
            color: #1a73e8;
            text-decoration: none;
            transition: color 0.25s;
        }
        a:hover,
        a:focus-visible {
            color: #0d47a1;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 10px;
        }
        ul,
        ol {
            padding-left: 1.6rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #0b1c2f;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 4px solid #ffd54f;
            padding-bottom: 0.5rem;
            margin-top: 0.5rem;
        }
        h2 {
            font-size: 1.9rem;
            border-left: 6px solid #ffd54f;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.2rem;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .badge {
            display: inline-block;
            background: #ffd54f;
            color: #1e2a3a;
            padding: 0.2rem 0.9rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .site-header {
            background: #0b1c2f;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #ffd54f;
            letter-spacing: -0.5px;
            text-decoration: none !important;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo:hover {
            color: #ffe082;
            text-decoration: none !important;
        }
        .my-logo i {
            font-size: 2rem;
            color: #ffd54f;
        }
        .my-logo span {
            font-size: 0.7rem;
            display: block;
            color: #aab8c9;
            font-weight: 400;
            letter-spacing: 0.5px;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 1.2rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.2rem;
            padding: 0;
            margin: 0;
        }
        .nav-list li a {
            color: #e8edf5;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
            display: block;
        }
        .nav-list li a:hover,
        .nav-list li a:focus-visible {
            background: #ffd54f;
            color: #0b1c2f;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.1);
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: #e9edf3;
            padding: 0.7rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.8rem;
            color: #6b7a8d;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #1a73e8;
        }
        .breadcrumb .current {
            color: #4a5a6e;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, #0b1c2f 0%, #1a3a5a 100%);
            color: #fff;
            padding: 2.5rem 0 2.8rem;
            text-align: center;
            border-bottom: 6px solid #ffd54f;
        }
        .hero h1 {
            color: #fff;
            border-bottom: none;
            font-size: 2.8rem;
            margin-top: 0;
        }
        .hero h1 i {
            color: #ffd54f;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 760px;
            margin: 1rem auto 0;
            color: #cfddee;
        }
        .hero .last-updated {
            display: inline-block;
            margin-top: 1.2rem;
            background: rgba(255, 213, 79, 0.18);
            padding: 0.4rem 1.6rem;
            border-radius: 50px;
            font-size: 0.9rem;
            color: #ffd54f;
            border: 1px solid rgba(255, 213, 79, 0.25);
        }
        .search-section {
            background: #fff;
            padding: 1.8rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
        }
        .search-form {
            display: flex;
            max-width: 620px;
            margin: 0 auto;
            border-radius: 60px;
            overflow: hidden;
            border: 2px solid #dce3ec;
            transition: border-color 0.3s;
            background: #fff;
        }
        .search-form:focus-within {
            border-color: #ffd54f;
        }
        .search-form input {
            flex: 1;
            padding: 0.9rem 1.5rem;
            border: none;
            font-size: 1rem;
            outline: none;
            background: transparent;
        }
        .search-form button {
            background: #ffd54f;
            border: none;
            padding: 0 1.8rem;
            font-size: 1.1rem;
            cursor: pointer;
            color: #0b1c2f;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 600;
        }
        .search-form button:hover {
            background: #ffca28;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2.5rem 0;
        }
        .content-area {
            background: #fff;
            padding: 2rem 2.2rem;
            border-radius: 18px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.05);
        }
        .sidebar {
            background: #fff;
            padding: 1.8rem 1.5rem;
            border-radius: 18px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.05);
            align-self: start;
            position: sticky;
            top: 90px;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            margin-top: 0;
            border-bottom: 2px solid #ffd54f;
            padding-bottom: 0.5rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 0.8rem 0 0;
        }
        .sidebar ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #eef2f7;
        }
        .sidebar ul li a {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 500;
        }
        .sidebar ul li a i {
            color: #ffd54f;
            width: 1.2rem;
        }
        .code-table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        .code-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            min-width: 500px;
        }
        .code-table th {
            background: #0b1c2f;
            color: #fff;
            padding: 0.8rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .code-table td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #e9edf3;
        }
        .code-table tr:hover td {
            background: #f8faff;
        }
        .code-table .code-value {
            font-family: 'Courier New', monospace;
            background: #f0f4fa;
            padding: 0.2rem 0.8rem;
            border-radius: 6px;
            font-weight: 600;
            color: #0b1c2f;
        }
        .code-table .status-active {
            color: #2e7d32;
            font-weight: 600;
        }
        .code-table .status-expired {
            color: #b71c1c;
        }
        .copy-btn {
            background: #ffd54f;
            border: none;
            padding: 0.2rem 1rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            font-size: 0.8rem;
            transition: background 0.2s;
        }
        .copy-btn:hover {
            background: #ffca28;
        }
        .rating-box {
            background: #f8faff;
            border-radius: 14px;
            padding: 1.5rem 2rem;
            margin: 2rem 0 1.5rem;
            border: 1px solid #e4e9f2;
        }
        .rating-stars {
            display: flex;
            gap: 0.4rem;
            font-size: 2rem;
            color: #d0d7e2;
            cursor: pointer;
            transition: color 0.2s;
            flex-wrap: wrap;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #ffb300;
        }
        .rating-stars i {
            transition: color 0.15s, transform 0.15s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        .rating-form {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
            margin-top: 0.8rem;
        }
        .rating-form button {
            background: #0b1c2f;
            color: #fff;
            border: none;
            padding: 0.6rem 1.8rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
        }
        .rating-form button:hover {
            background: #1a3a5a;
        }
        .comment-section {
            margin: 2rem 0 1rem;
        }
        .comment-section textarea {
            width: 100%;
            padding: 1rem 1.2rem;
            border: 2px solid #dce3ec;
            border-radius: 14px;
            font-size: 1rem;
            resize: vertical;
            min-height: 110px;
            font-family: inherit;
            transition: border-color 0.3s;
        }
        .comment-section textarea:focus {
            border-color: #ffd54f;
            outline: none;
        }
        .comment-section .comment-form-footer {
            display: flex;
            justify-content: flex-end;
            margin-top: 0.8rem;
        }
        .comment-section button {
            background: #ffd54f;
            border: none;
            padding: 0.6rem 2rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.25s;
        }
        .comment-section button:hover {
            background: #ffca28;
        }
        .link-list-vertical a {
            display: block;
            padding: 0.5rem 0;
            border-bottom: 1px solid #eef2f7;
            font-weight: 500;
        }
        .link-list-vertical a i {
            margin-right: 0.6rem;
            color: #ffd54f;
            width: 1.2rem;
        }
        .site-footer {
            background: #0b1c2f;
            color: #cfddee;
            padding: 2.5rem 0 1.8rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .footer-grid h4 {
            color: #ffd54f;
            margin-top: 0;
        }
        .footer-grid a {
            color: #b0c4de;
        }
        .footer-grid a:hover {
            color: #ffd54f;
        }
        friend-link {
            display: block;
            margin: 1.5rem 0 0.8rem;
            padding-top: 1.2rem;
            border-top: 1px solid #253e5a;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 1.2rem 0.3rem 0;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            margin-top: 1.5rem;
            border-top: 1px solid #253e5a;
            font-size: 0.9rem;
            color: #8fa3bb;
        }
        @media (max-width: 1024px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                background: #0b1c2f;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                padding: 1rem 1.5rem;
                border-top: 2px solid #ffd54f;
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
                gap: 0.2rem;
            }
            #nav-toggle:checked~.nav-list {
                display: flex;
            }
            .nav-list li a {
                padding: 0.7rem 1rem;
                border-radius: 10px;
            }
            .header-inner {
                position: relative;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .content-area {
                padding: 1.2rem 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .code-table th,
            .code-table td {
                padding: 0.5rem 0.7rem;
                font-size: 0.85rem;
            }
            .rating-stars {
                font-size: 1.6rem;
            }
            .search-form input {
                padding: 0.7rem 1rem;
            }
            .search-form button {
                padding: 0 1.2rem;
                font-size: 0.9rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .breadcrumb ol {
                font-size: 0.8rem;
                gap: 0.2rem 0.4rem;
            }
            .container {
                padding: 0 0.8rem;
            }
            .content-area {
                padding: 0.8rem 0.8rem;
            }
            .rating-box {
                padding: 1rem 1rem;
            }
            .code-table {
                font-size: 0.8rem;
                min-width: 400px;
            }
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-1 {
            margin-bottom: 0.5rem;
        }
        .mb-2 {
            margin-bottom: 1rem;
        }
        .text-center {
            text-align: center;
        }
        .highlight {
            background: #fff8e1;
            padding: 0.2rem 0.5rem;
            border-radius: 6px;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .gap-1 {
            gap: 0.5rem;
        }
        .gap-2 {
            gap: 1rem;
        }
        @media (min-width: 1025px) {
            .sidebar {
                position: sticky;
                top: 90px;
            }
        }