*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f8f9fc;
            color: #1e293b;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #e85d04;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #b94300;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.35rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: #0f172a;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4rem;
        }
        h2 {
            font-size: 1.9rem;
            border-bottom: 3px solid #f97316;
            padding-bottom: 0.3rem;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            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;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f97316, #fb923c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
            text-shadow: 0 0 30px rgba(249, 115, 22, 0.25);
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: #94a3b8;
            color: #94a3b8;
            display: block;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #f97316;
            color: #f97316;
            font-size: 1.6rem;
            padding: 0.3rem 0.8rem;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: #f97316;
            color: #fff;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #e2e8f0;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: 0.2s;
            white-space: nowrap;
        }
        .nav-menu a:hover {
            background: rgba(249, 115, 22, 0.2);
            color: #fb923c;
            text-decoration: none;
        }
        .nav-menu a.active {
            background: #f97316;
            color: #fff;
        }
        .breadcrumb {
            background: #f1f5f9;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 0.6rem;
            color: #94a3b8;
        }
        .breadcrumb a {
            color: #475569;
        }
        .breadcrumb a:hover {
            color: #f97316;
        }
        .breadcrumb .current {
            color: #0f172a;
            font-weight: 600;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2.2rem 0 3rem;
        }
        @media(max-width:900px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
        }
        .card {
            background: #fff;
            border-radius: 20px;
            padding: 1.8rem 2rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            margin-bottom: 2rem;
            border: 1px solid #f1f5f9;
            transition: box-shadow 0.25s;
        }
        .card:hover {
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.07);
        }
        .sidebar .card {
            padding: 1.4rem 1.6rem;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #f97316;
            padding-bottom: 0.4rem;
            margin-bottom: 1rem;
        }
        .link-list {
            list-style: none;
            padding: 0;
        }
        .link-list li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .link-list li:last-child {
            border-bottom: none;
        }
        .link-list a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 500;
        }
        .link-list a i {
            color: #f97316;
            width: 1.2rem;
        }
        .search-form {
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            border: 2px solid #e2e8f0;
            transition: 0.2s;
            background: #fff;
        }
        .search-form:focus-within {
            border-color: #f97316;
            box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.12);
        }
        .search-form input {
            flex: 1;
            border: none;
            padding: 0.75rem 1.2rem;
            font-size: 0.95rem;
            outline: none;
            background: transparent;
            min-width: 0;
        }
        .search-form button {
            background: #f97316;
            color: #fff;
            border: none;
            padding: 0 1.3rem;
            font-size: 1.1rem;
            cursor: pointer;
            transition: 0.2s;
        }
        .search-form button:hover {
            background: #e85d04;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            font-size: 1.7rem;
            cursor: pointer;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #cbd5e1;
            transition: color 0.15s;
            cursor: pointer;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f59e0b;
        }
        .star-rating label i {
            pointer-events: none;
        }
        .comment-box textarea {
            width: 100%;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            padding: 0.9rem 1.1rem;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 110px;
            font-family: inherit;
            transition: 0.2s;
            background: #f8fafc;
        }
        .comment-box textarea:focus {
            border-color: #f97316;
            box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.08);
            outline: none;
            background: #fff;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #f97316;
            color: #fff;
            border: none;
            padding: 0.7rem 1.8rem;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .btn:hover {
            background: #e85d04;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(249, 115, 22, 0.3);
        }
        .btn-secondary {
            background: #1e293b;
        }
        .btn-secondary:hover {
            background: #0f172a;
        }
        .feature-image {
            border-radius: 16px;
            overflow: hidden;
            margin: 1.6rem 0;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .feature-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        .feature-image figcaption {
            background: #f1f5f9;
            padding: 0.6rem 1rem;
            font-size: 0.85rem;
            color: #475569;
            text-align: center;
        }
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        @media(max-width:700px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .site-footer h4 {
            color: #f8fafc;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .site-footer a {
            color: #94a3b8;
        }
        .site-footer a:hover {
            color: #fb923c;
        }
        .friend-link {
            display: block;
            background: #1e293b;
            border-radius: 12px;
            padding: 1.2rem 1.5rem;
            margin: 1.2rem 0;
        }
        .friend-link a {
            display: inline-block;
            margin: 0.25rem 0.5rem 0.25rem 0;
            padding: 0.25rem 0.8rem;
            background: #334155;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #e2e8f0;
            transition: 0.2s;
        }
        .friend-link a:hover {
            background: #f97316;
            color: #fff;
            text-decoration: none;
        }
        .copyright {
            border-top: 1px solid #1e293b;
            padding-top: 1.2rem;
            margin-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: #64748b;
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 1rem 0 0.5rem;
                gap: 0.1rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                width: 100%;
                text-align: center;
                padding: 0.6rem;
            }
            .header-inner {
                align-items: center;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .card {
                padding: 1.2rem 1.2rem;
            }
            .main-grid {
                padding: 1.2rem 0;
            }
        }
        @media(max-width:480px) {
            html {
                font-size: 15px;
            }
            .container {
                padding: 0 0.8rem;
            }
            .card {
                padding: 1rem;
                border-radius: 14px;
            }
            .my-logo {
                font-size: 1.6rem;
            }
        }
        .tag {
            display: inline-block;
            background: #fef3c7;
            color: #92400e;
            padding: 0.15rem 0.7rem;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .last-updated {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            color: #64748b;
            margin-bottom: 1rem;
        }
        .divider {
            height: 2px;
            background: linear-gradient(90deg, #f97316, transparent);
            margin: 1.8rem 0;
            border: none;
        }
        .emoji-big {
            font-size: 1.3rem;
        }
        .highlight-box {
            background: #fffbeb;
            border-left: 5px solid #f97316;
            padding: 1rem 1.4rem;
            border-radius: 0 12px 12px 0;
            margin: 1.2rem 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 1rem;
            margin: 1.2rem 0;
        }
        .stat-item {
            background: #f1f5f9;
            padding: 1rem;
            border-radius: 12px;
            text-align: center;
        }
        .stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: #f97316;
        }
        .stat-item .label {
            font-size: 0.8rem;
            color: #475569;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1rem 0;
            font-size: 0.9rem;
        }
        th,
        td {
            padding: 0.6rem 0.8rem;
            text-align: left;
            border-bottom: 1px solid #e2e8f0;
        }
        th {
            background: #f1f5f9;
            font-weight: 600;
            color: #0f172a;
        }
        tr:hover td {
            background: #f8fafc;
        }