*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #0d0f14;
            color: #e8edf3;
            line-height: 1.7;
            padding: 0;
            margin: 0;
            min-height: 100vh;
        }
        a {
            color: #7aaaff;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #b3ccff;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #f0f4ff;
            margin-top: 1.6em;
            margin-bottom: 0.6em;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4em;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 2px solid #2a3a5c;
            padding-bottom: 0.3em;
        }
        h3 {
            font-size: 1.35rem;
            color: #d6e2ff;
        }
        h4 {
            font-size: 1.1rem;
            color: #b8c9f0;
        }
        p {
            margin-bottom: 1.2em;
            color: #dce2ed;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: #141821;
            padding: 14px 0;
            border-bottom: 1px solid #2a3040;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px 20px;
        }
        .my-logo {
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #ffcc33, #ff6b6b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 0 30px rgba(255, 107, 107, 0.15);
            display: inline-block;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.9;
        }
        .my-logo small {
            font-size: 0.6rem;
            -webkit-text-fill-color: #8899bb;
            display: block;
            font-weight: 400;
            letter-spacing: 0.3px;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-menu {
            display: flex;
            list-style: none;
            gap: 6px 16px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu li a {
            color: #c8d4e8;
            font-weight: 500;
            padding: 6px 10px;
            border-radius: 6px;
            transition: background 0.2s, color 0.2s;
            font-size: 0.94rem;
        }
        .nav-menu li a:hover {
            background: #1f2a3f;
            color: #fff;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #e8edf3;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #1f2a3f;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: #1a1f2b;
            padding: 12px 20px;
            border-radius: 10px;
            margin: 18px 0 10px 0;
            font-size: 0.9rem;
            color: #8899bb;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            list-style: none;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #556688;
        }
        .breadcrumb a {
            color: #7aaaff;
        }
        .breadcrumb a:hover {
            color: #b3ccff;
        }
        .breadcrumb .current {
            color: #ccd9f0;
        }
        .search-box {
            display: flex;
            max-width: 480px;
            margin: 20px 0 28px 0;
            background: #1a1f2b;
            border-radius: 50px;
            border: 1px solid #2a3a5c;
            overflow: hidden;
            transition: border-color 0.3s;
        }
        .search-box:focus-within {
            border-color: #4a7aff;
            box-shadow: 0 0 0 3px rgba(74, 122, 255, 0.15);
        }
        .search-box input {
            flex: 1;
            padding: 14px 20px;
            border: none;
            background: transparent;
            color: #e8edf3;
            font-size: 1rem;
            outline: none;
        }
        .search-box input::placeholder {
            color: #6a7f99;
        }
        .search-box button {
            background: #2a3a5c;
            border: none;
            color: #e8edf3;
            padding: 0 22px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-box button:hover {
            background: #3a4a7c;
        }
        .section-card {
            background: #161c27;
            border-radius: 16px;
            padding: 28px 30px;
            margin-bottom: 32px;
            border: 1px solid #222c40;
            transition: border-color 0.2s;
        }
        .section-card:hover {
            border-color: #2a3a5c;
        }
        .featured-img {
            border-radius: 14px;
            margin: 24px 0;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
            width: 100%;
            max-width: 780px;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            gap: 6px;
            justify-content: flex-end;
            font-size: 1.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #3a4a6a;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #ffbb33;
        }
        .star-rating label i {
            font-size: 1.8rem;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 6px;
            color: #c8d4e8;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            background: #1a1f2b;
            border: 1px solid #2a3a5c;
            border-radius: 10px;
            color: #e8edf3;
            font-size: 1rem;
            transition: border-color 0.2s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #4a7aff;
            outline: none;
            box-shadow: 0 0 0 3px rgba(74, 122, 255, 0.12);
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            padding: 12px 30px;
            background: linear-gradient(135deg, #2a4a8a, #1a2a5a);
            border: none;
            border-radius: 50px;
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: transform 0.15s, box-shadow 0.2s;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(42, 74, 138, 0.4);
        }
        .btn-primary {
            background: linear-gradient(135deg, #ff6b6b, #cc4444);
        }
        .btn-primary:hover {
            box-shadow: 0 8px 24px rgba(204, 68, 68, 0.35);
        }
        .comment-item {
            background: #1a1f2b;
            border-radius: 12px;
            padding: 16px 20px;
            margin-bottom: 14px;
            border-left: 4px solid #2a4a8a;
        }
        .comment-item .author {
            font-weight: 700;
            color: #ffbb33;
        }
        .comment-item .date {
            font-size: 0.8rem;
            color: #6a7f99;
            margin-left: 12px;
        }
        .comment-item .text {
            margin-top: 6px;
        }
        friend-link {
            display: block;
            padding: 16px 0;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 16px 4px 0;
            padding: 6px 14px;
            background: #1a1f2b;
            border-radius: 30px;
            font-size: 0.92rem;
            border: 1px solid #2a3a5c;
            transition: background 0.2s, border-color 0.2s;
        }
        friend-link a:hover {
            background: #2a3a5c;
            border-color: #4a7aff;
            text-decoration: none;
        }
        footer {
            background: #0d0f14;
            border-top: 1px solid #1f2a3f;
            padding: 40px 0 30px 0;
            margin-top: 50px;
        }
        footer .copyright {
            color: #5a6f8a;
            font-size: 0.9rem;
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #1a2538;
        }
        footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px 24px;
            margin-bottom: 18px;
        }
        @media (max-width: 900px) {
            .header-inner {
                flex-direction: column;
                align-items: stretch;
            }
            .nav-wrapper {
                justify-content: space-between;
            }
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #141821;
                padding: 12px 0 16px 0;
                border-top: 1px solid #2a3040;
                margin-top: 10px;
                gap: 4px;
            }
            .nav-menu li a {
                display: block;
                padding: 10px 16px;
                border-radius: 8px;
            }
            #nav-toggle:checked~.nav-menu {
                display: flex;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .section-card {
                padding: 18px 16px;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding: 10px 14px;
            }
            .star-rating {
                font-size: 1.5rem;
            }
            .search-box {
                max-width: 100%;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .featured-img {
                border-radius: 10px;
            }
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-1 {
            margin-bottom: 0.5em;
        }
        .mb-2 {
            margin-bottom: 1em;
        }
        .text-muted {
            color: #6a7f99;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }
        .gap-1 {
            gap: 1rem;
        }
        .highlight {
            color: #ffbb33;
            font-weight: 600;
        }
        .badge {
            display: inline-block;
            background: #2a3a5c;
            padding: 2px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #b8c9f0;
        }
        .table-wrap {
            overflow-x: auto;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 18px 0;
        }
        table th,
        table td {
            padding: 10px 14px;
            text-align: left;
            border-bottom: 1px solid #1f2a3f;
        }
        table th {
            background: #1a1f2b;
            font-weight: 700;
            color: #b8c9f0;
        }
        table tr:hover td {
            background: #1a2233;
        }
        .schema-hidden {
            display: none;
        }