*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            background: #f6f9fc;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #0a66c2;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #e85d2c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(145deg, #0b1d2f 0%, #1a3a4e 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f9d423, #ff4e50);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 0 30px rgba(249, 212, 35, 0.15);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #f9d423;
            font-size: 1.6rem;
        }
        .my-logo a {
            color: inherit;
            -webkit-text-fill-color: inherit;
            background-clip: unset;
        }
        .my-logo a:hover {
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 12px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-menu {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.2rem;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .nav-menu li a {
            color: #e8f0f8;
            padding: 0.5rem 1rem;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: all 0.25s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-menu li a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #f9d423;
            text-decoration: none;
        }
        .nav-menu li a i {
            font-size: 0.9rem;
        }
        .breadcrumb {
            background: #eef3f7;
            padding: 0.7rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #dce5ec;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "/";
            margin-right: 0.6rem;
            color: #7f8c9b;
        }
        .breadcrumb a {
            color: #2c5f7a;
        }
        .breadcrumb .current {
            color: #1a2a3a;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, #0b1d2f 0%, #1f4a5e 100%);
            color: #fff;
            padding: 3rem 0 2.5rem;
            text-align: center;
            border-bottom: 4px solid #f9d423;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 0.6rem;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
        }
        .hero h1 i {
            color: #f9d423;
            margin-right: 0.5rem;
        }
        .hero p {
            font-size: 1.15rem;
            max-width: 720px;
            margin: 0.5rem auto 0;
            opacity: 0.9;
        }
        .hero .last-updated {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            padding: 0.3rem 1.2rem;
            border-radius: 40px;
            font-size: 0.85rem;
            margin-top: 1rem;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .search-section {
            background: #fff;
            padding: 1.8rem 0;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .search-form {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            max-width: 620px;
            margin: 0 auto;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #dce5ec;
            border-radius: 50px;
            font-size: 1rem;
            transition: border-color 0.3s;
            outline: none;
        }
        .search-form input[type="text"]:focus {
            border-color: #f9d423;
        }
        .search-form button {
            background: linear-gradient(135deg, #f9d423, #ff8a5c);
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-weight: 700;
            color: #0b1d2f;
            font-size: 1rem;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            transform: scale(1.02);
            box-shadow: 0 6px 24px rgba(249, 212, 35, 0.35);
        }
        .main-content {
            padding: 2.5rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.2rem;
        }
        .section-card {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 2.2rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            transition: box-shadow 0.3s;
            border: 1px solid #eef3f7;
        }
        .section-card:hover {
            box-shadow: 0 8px 38px rgba(0, 0, 0, 0.07);
        }
        .section-card h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: #0b1d2f;
            margin-bottom: 1.2rem;
            border-left: 5px solid #f9d423;
            padding-left: 1rem;
        }
        .section-card h2 i {
            color: #f9d423;
            margin-right: 0.5rem;
        }
        .section-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #1a3a4e;
            margin: 1.6rem 0 0.8rem;
        }
        .section-card h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #2a4a5e;
            margin: 1.2rem 0 0.5rem;
        }
        .section-card p {
            margin-bottom: 1rem;
            color: #2c3e4e;
        }
        .section-card .highlight {
            background: #fef8e7;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .code-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 0.8rem;
            margin: 1.2rem 0;
        }
        .code-item {
            background: #f4f8fb;
            padding: 0.7rem 1rem;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border: 1px solid #e2ebf2;
            transition: all 0.2s;
        }
        .code-item:hover {
            background: #ecf3f8;
            transform: translateY(-2px);
        }
        .code-item .code {
            font-family: 'Courier New', monospace;
            font-weight: 700;
            color: #0b1d2f;
            letter-spacing: 0.5px;
        }
        .code-item .status {
            font-size: 0.8rem;
            padding: 0.2rem 0.8rem;
            border-radius: 40px;
            font-weight: 600;
        }
        .status.active {
            background: #d4edda;
            color: #155724;
        }
        .status.expired {
            background: #f8d7da;
            color: #721c24;
        }
        .featured-image {
            margin: 1.8rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.06);
        }
        .featured-image figcaption {
            background: #f4f8fb;
            padding: 0.8rem 1.2rem;
            font-size: 0.9rem;
            color: #3e5a6e;
            text-align: center;
            border-top: 1px solid #e2ebf2;
        }
        .comment-box,
        .score-box {
            background: #f8fafc;
            border-radius: 16px;
            padding: 1.6rem;
            margin-top: 1.5rem;
            border: 1px solid #e2ebf2;
        }
        .comment-box h4,
        .score-box h4 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .comment-box textarea,
        .score-box input,
        .score-box select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #dce5ec;
            border-radius: 12px;
            font-size: 1rem;
            margin: 0.4rem 0 0.8rem;
            outline: none;
            transition: border-color 0.3s;
            font-family: inherit;
        }
        .comment-box textarea:focus,
        .score-box input:focus,
        .score-box select:focus {
            border-color: #f9d423;
        }
        .comment-box textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn-submit {
            background: linear-gradient(135deg, #0b1d2f, #1a3a4e);
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all 0.25s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-submit:hover {
            background: linear-gradient(135deg, #1a3a4e, #2a5a6e);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }
        friend-link {
            display: block;
            background: #0b1d2f;
            color: #e8f0f8;
            padding: 2rem 0;
            margin-top: 2rem;
            border-top: 4px solid #f9d423;
        }
        friend-link .container {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem 2rem;
            justify-content: center;
        }
        friend-link a {
            color: #f9d423;
            font-weight: 500;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            transition: all 0.2s;
        }
        friend-link a:hover {
            background: rgba(249, 212, 35, 0.12);
            color: #ffc107;
            text-decoration: none;
        }
        friend-link .label {
            font-weight: 700;
            color: #fff;
            margin-right: 0.8rem;
        }
        .site-footer {
            background: #06121c;
            color: #b0c4d4;
            padding: 1.8rem 0;
            font-size: 0.9rem;
            text-align: center;
            border-top: 1px solid #1a2a3a;
        }
        .site-footer .copyright {
            opacity: 0.8;
            letter-spacing: 0.3px;
        }
        .site-footer a {
            color: #f9d423;
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0b1d2f;
                padding: 0.8rem 0;
                border-radius: 0 0 16px 16px;
                margin-top: 0.6rem;
                border-top: 1px solid rgba(255, 255, 255, 0.05);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li a {
                padding: 0.6rem 1.4rem;
                border-radius: 0;
                width: 100%;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .section-card {
                padding: 1.4rem;
            }
            .section-card h2 {
                font-size: 1.5rem;
            }
            .code-list {
                grid-template-columns: 1fr 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .breadcrumb ol {
                font-size: 0.75rem;
                gap: 0.2rem 0.4rem;
            }
        }
        @media (max-width: 480px) {
            .code-list {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .section-card {
                padding: 1rem;
            }
            .container {
                padding: 0 12px;
            }
        }
        @media (min-width: 769px) {
            .nav-menu {
                display: flex !important;
            }
            .nav-toggle {
                display: none !important;
            }
        }
        .anchor-offset {
            scroll-margin-top: 90px;
        }
        .emoji-lg {
            font-size: 1.6rem;
            line-height: 1;
        }
        .inline-icon {
            margin-right: 0.3rem;
        }
        .text-muted {
            color: #5e7a8e;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            align-items: center;
        }
        .gap-1 {
            gap: 0.6rem;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .fw-700 {
            font-weight: 700;
        }