* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f5f7fc;
            color: #1a1a2e;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #d32f2f;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #b71c1c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
            color: #fff;
            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;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f7971e, #ffd200);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 12px rgba(255, 210, 0, 0.25);
            cursor: pointer;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.02);
        }
        .my-logo i {
            -webkit-text-fill-color: #ffd200;
            margin-right: 6px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            flex-wrap: wrap;
        }
        .nav-menu li a {
            color: #e0e0e0;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: all 0.25s ease;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-menu li a:hover {
            color: #ffd200;
            border-bottom-color: #ffd200;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #fff;
            cursor: pointer;
            padding: 4px 8px;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.1);
        }
        .breadcrumb {
            background: #f0f2f8;
            padding: 12px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dce1ec;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 12px;
            color: #888;
        }
        .breadcrumb a {
            color: #2c3e50;
        }
        .breadcrumb .active {
            color: #d32f2f;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(145deg, #1a1a3e, #2d2b6b);
            color: #fff;
            padding: 60px 0 50px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .hero::after {
            content: "♠ ♥ ♦ ♣";
            position: absolute;
            bottom: -30px;
            right: -20px;
            font-size: 10rem;
            opacity: 0.04;
            letter-spacing: 20px;
            pointer-events: none;
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .hero h1 i {
            color: #ffd200;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 780px;
            margin: 0 auto 28px;
            opacity: 0.9;
        }
        .hero .badge {
            display: inline-block;
            background: #ffd200;
            color: #1a1a2e;
            padding: 8px 24px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 20px;
            box-shadow: 0 4px 14px rgba(255, 210, 0, 0.35);
        }
        .hero .btn-download {
            display: inline-block;
            background: #d32f2f;
            color: #fff;
            padding: 16px 48px;
            border-radius: 50px;
            font-size: 1.2rem;
            font-weight: 700;
            transition: all 0.3s ease;
            border: 2px solid transparent;
            box-shadow: 0 8px 28px rgba(211, 47, 47, 0.4);
        }
        .hero .btn-download:hover {
            background: #b71c1c;
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(211, 47, 47, 0.5);
            text-decoration: none;
            color: #fff;
        }
        .hero .btn-download i {
            margin-right: 10px;
        }
        .page-wrap {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 48px 0;
        }
        @media (max-width: 992px) {
            .page-wrap {
                grid-template-columns: 1fr;
            }
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            background: #fff;
            border-radius: 16px;
            padding: 28px 24px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        @media (max-width: 992px) {
            .sidebar {
                position: static;
                margin-top: 32px;
            }
        }
        .sidebar h3 {
            font-size: 1.3rem;
            margin-bottom: 16px;
            border-left: 4px solid #d32f2f;
            padding-left: 14px;
        }
        .sidebar .link-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 28px;
        }
        .sidebar .link-list a {
            background: #f8f9fc;
            padding: 10px 16px;
            border-radius: 8px;
            font-weight: 500;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
        }
        .sidebar .link-list a:hover {
            background: #d32f2f10;
            transform: translateX(4px);
            text-decoration: none;
            color: #d32f2f;
        }
        .sidebar .link-list a i {
            width: 22px;
            color: #d32f2f;
        }
        .search-box {
            margin-bottom: 28px;
        }
        .search-box form {
            display: flex;
            border: 2px solid #e0e4f0;
            border-radius: 50px;
            overflow: hidden;
            transition: border-color 0.3s;
        }
        .search-box form:focus-within {
            border-color: #d32f2f;
        }
        .search-box input {
            flex: 1;
            padding: 12px 18px;
            border: none;
            outline: none;
            font-size: 0.95rem;
            background: transparent;
        }
        .search-box button {
            background: #d32f2f;
            color: #fff;
            border: none;
            padding: 0 22px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.25s;
        }
        .search-box button:hover {
            background: #b71c1c;
        }
        .rating-widget {
            background: #fafbff;
            border-radius: 12px;
            padding: 20px;
            margin-bottom: 28px;
            border: 1px solid #edf0f8;
        }
        .rating-widget .stars {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: #e0e0e0;
            cursor: pointer;
            margin: 8px 0 12px;
            flex-wrap: wrap;
        }
        .rating-widget .stars i {
            transition: color 0.2s, transform 0.15s;
        }
        .rating-widget .stars i:hover,
        .rating-widget .stars i.active {
            color: #ffc107;
            transform: scale(1.15);
        }
        .rating-widget .rating-result {
            font-weight: 600;
            color: #2c3e50;
        }
        .comment-widget textarea {
            width: 100%;
            padding: 14px 16px;
            border: 2px solid #e0e4f0;
            border-radius: 12px;
            font-family: inherit;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 100px;
            transition: border-color 0.3s;
        }
        .comment-widget textarea:focus {
            border-color: #d32f2f;
            outline: none;
        }
        .comment-widget .btn-submit {
            background: #d32f2f;
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            margin-top: 10px;
        }
        .comment-widget .btn-submit:hover {
            background: #b71c1c;
            transform: translateY(-2px);
        }
        .main-content h2 {
            font-size: 2rem;
            margin: 48px 0 16px;
            padding-bottom: 10px;
            border-bottom: 3px solid #d32f2f20;
            color: #1a1a2e;
        }
        .main-content h2 i {
            color: #d32f2f;
            margin-right: 10px;
        }
        .main-content h3 {
            font-size: 1.5rem;
            margin: 32px 0 12px;
            color: #2c3e50;
        }
        .main-content h4 {
            font-size: 1.2rem;
            margin: 24px 0 8px;
            color: #34495e;
        }
        .main-content p {
            margin-bottom: 18px;
            color: #2d2d44;
        }
        .main-content ul,
        .main-content ol {
            margin: 12px 0 20px 24px;
        }
        .main-content li {
            margin-bottom: 8px;
        }
        .main-content .highlight-box {
            background: #f0f4ff;
            border-left: 5px solid #d32f2f;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 28px 0;
        }
        .main-content .highlight-box strong {
            color: #d32f2f;
        }
        .main-content .img-wrapper {
            margin: 32px 0;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .main-content .img-wrapper figcaption {
            background: #f8f9fc;
            padding: 12px 18px;
            font-size: 0.9rem;
            color: #555;
            text-align: center;
            font-style: italic;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 28px 0;
        }
        .table-wrap table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
        }
        .table-wrap th {
            background: #1a1a3e;
            color: #fff;
            padding: 14px 18px;
            text-align: left;
            font-weight: 600;
        }
        .table-wrap td {
            padding: 14px 18px;
            border-bottom: 1px solid #edf0f8;
        }
        .table-wrap tr:last-child td {
            border-bottom: none;
        }
        .table-wrap tr:hover td {
            background: #f8f9fc;
        }
        .site-footer {
            background: #0f0c29;
            color: #ccc;
            padding: 48px 0 24px;
            margin-top: 48px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }
        .site-footer h4 {
            color: #ffd200;
            font-size: 1.1rem;
            margin-bottom: 14px;
        }
        .site-footer a {
            color: #aaa;
            display: block;
            padding: 4px 0;
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .site-footer a:hover {
            color: #ffd200;
            text-decoration: none;
        }
        friend-link {
            display: block;
            background: #1c1a3a;
            padding: 20px 24px;
            border-radius: 12px;
            margin: 20px 0 28px;
            color: #ddd;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            color: #bbb;
            padding: 4px 0;
        }
        friend-link a:hover {
            color: #ffd200;
        }
        .copyright {
            text-align: center;
            border-top: 1px solid #2a2a4a;
            padding-top: 24px;
            font-size: 0.85rem;
            color: #888;
        }
        .copyright strong {
            color: #ccc;
        }
        .last-updated {
            display: inline-block;
            background: #2a2a4a;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.8rem;
            margin-bottom: 16px;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                padding: 16px 0 8px;
                border-top: 1px solid #2a2a5a;
                margin-top: 8px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li a {
                padding: 10px 0;
                width: 100%;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .page-wrap {
                padding: 24px 0;
                gap: 24px;
            }
            .main-content h2 {
                font-size: 1.6rem;
            }
            .main-content h3 {
                font-size: 1.25rem;
            }
            .sidebar {
                padding: 20px 16px;
            }
            .my-logo {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero .btn-download {
                padding: 14px 32px;
                font-size: 1rem;
            }
            .container {
                padding: 0 12px;
            }
            .table-wrap th,
            .table-wrap td {
                padding: 10px 12px;
                font-size: 0.85rem;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #d32f2f;
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: 0 6px 24px rgba(211, 47, 47, 0.3);
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            z-index: 999;
            opacity: 0;
            visibility: hidden;
        }
        .scroll-top.visible {
            opacity: 1;
            visibility: visible;
        }
        .scroll-top:hover {
            background: #b71c1c;
            transform: translateY(-4px);
        }
        .text-center {
            text-align: center;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .emoji-big {
            font-size: 1.4rem;
        }