*,
        *::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: #f4f7fc;
            color: #1a2634;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #c0392b;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover,
        a:focus {
            color: #e74c3c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.3;
            color: #0b1a2a;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            font-weight: 700;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.2rem;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 3px solid #e74c3c;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #1e3a5f;
        }
        h4 {
            font-size: 1.15rem;
            color: #2c4a6e;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .badge {
            display: inline-block;
            background: #e74c3c;
            color: #fff;
            padding: 0.2rem 0.9rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .highlight {
            background: linear-gradient(120deg, #fde8e8 0%, #fde8e8 40%, #f8d7da 100%);
            padding: 0.1rem 0.4rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.8rem;
            margin-right: 6px;
        }
        .last-updated {
            font-size: 0.95rem;
            color: #5a6a7a;
            background: #eef2f7;
            padding: 0.4rem 1.2rem;
            border-radius: 40px;
            display: inline-block;
            margin: 1rem 0 0.5rem;
        }
        .divider {
            width: 80px;
            height: 4px;
            background: #e74c3c;
            border-radius: 4px;
            margin: 1.2rem 0 1.8rem;
        }
        .site-header {
            background: #0b1a2a;
            color: #fff;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo:hover {
            color: #e74c3c;
            text-decoration: none;
        }
        .my-logo .logo-icon {
            font-size: 2rem;
        }
        .my-logo .logo-sub {
            font-size: 0.7rem;
            font-weight: 400;
            opacity: 0.7;
            display: block;
            line-height: 1;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.6rem;
            padding: 0.3rem 0.8rem;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            border-color: #e74c3c;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #e0e7ef;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: 0.2s;
            white-space: nowrap;
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            background: rgba(231, 76, 60, 0.2);
            color: #ff6b6b;
            text-decoration: none;
        }
        .breadcrumb {
            background: #fff;
            padding: 0.7rem 0;
            border-bottom: 1px solid #e0e7ef;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
            gap: 0.4rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.5rem;
            color: #8a9aa8;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #2c4a6e;
        }
        .breadcrumb .current {
            color: #5a6a7a;
        }
        .hero {
            background: linear-gradient(145deg, #0b1a2a 0%, #1e3a5f 100%);
            color: #fff;
            padding: 2.5rem 0 3rem;
            margin-bottom: 2rem;
            border-radius: 0 0 40px 40px;
        }
        .hero h1 {
            color: #fff;
            font-size: 2.8rem;
            margin-top: 0;
        }
        .hero p {
            font-size: 1.2rem;
            opacity: 0.9;
            max-width: 750px;
        }
        .hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            margin-top: 1rem;
            align-items: center;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        .main-content {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 2.5rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
        }
        .sidebar {
            position: sticky;
            top: 90px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
            margin-bottom: 1.5rem;
        }
        .sidebar-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            border-bottom: 2px solid #e74c3c;
            padding-bottom: 0.4rem;
        }
        .sidebar-link-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-link-list li {
            padding: 0.5rem 0;
            border-bottom: 1px solid #f0f3f8;
        }
        .sidebar-link-list li:last-child {
            border-bottom: none;
        }
        .sidebar-link-list a {
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-link-list a::before {
            content: "›";
            color: #e74c3c;
            font-weight: 700;
            font-size: 1.2rem;
        }
        .search-box {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0 1.8rem;
        }
        .search-box input {
            flex: 1;
            padding: 0.7rem 1.2rem;
            border: 2px solid #e0e7ef;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: 0.2s;
            background: #f9fbfd;
        }
        .search-box input:focus {
            border-color: #e74c3c;
            background: #fff;
        }
        .search-box button {
            background: #e74c3c;
            color: #fff;
            border: none;
            padding: 0 1.6rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-box button:hover {
            background: #c0392b;
            transform: scale(1.02);
        }
        .comment-section {
            margin-top: 2.5rem;
            padding-top: 2rem;
            border-top: 2px solid #eef2f7;
        }
        .comment-section h3 {
            margin-top: 0;
        }
        .comment-form {
            display: grid;
            gap: 1rem;
            margin: 1.2rem 0 1.8rem;
        }
        .comment-form input,
        .comment-form textarea {
            padding: 0.8rem 1.2rem;
            border: 2px solid #e0e7ef;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            outline: none;
            transition: 0.2s;
            background: #f9fbfd;
        }
        .comment-form input:focus,
        .comment-form textarea:focus {
            border-color: #e74c3c;
            background: #fff;
        }
        .comment-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .comment-form button {
            background: #0b1a2a;
            color: #fff;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            width: fit-content;
        }
        .comment-form button:hover {
            background: #1e3a5f;
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin: 0.3rem 0 0.8rem;
        }
        .rating-stars .star {
            transition: 0.15s;
        }
        .rating-stars .star.active,
        .rating-stars .star:hover {
            color: #f39c12;
            transform: scale(1.1);
        }
        .rating-stars .star:hover~.star {
            color: #ddd;
            transform: scale(1);
        }
        .responsive-table {
            width: 100%;
            overflow-x: auto;
            margin: 1.2rem 0;
            border-radius: 12px;
            border: 1px solid #eef2f7;
        }
        .responsive-table table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        .responsive-table th,
        .responsive-table td {
            padding: 0.8rem 1rem;
            text-align: left;
            border-bottom: 1px solid #eef2f7;
        }
        .responsive-table th {
            background: #0b1a2a;
            color: #fff;
            font-weight: 600;
        }
        .responsive-table tr:last-child td {
            border-bottom: none;
        }
        .responsive-table tr:hover td {
            background: #f9fbfd;
        }
        .site-footer {
            background: #0b1a2a;
            color: #c8d4e0;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
            border-radius: 40px 40px 0 0;
        }
        .site-footer .container {
            display: grid;
            gap: 1.8rem;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 2rem;
            justify-content: center;
        }
        .footer-links a {
            color: #c8d4e0;
            font-size: 0.95rem;
        }
        .footer-links a:hover {
            color: #ff6b6b;
        }
        friend-link {
            display: block;
            text-align: center;
            padding: 0.8rem 0;
            font-size: 0.95rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        friend-link a {
            color: #f0b8b0;
            margin: 0 0.6rem;
        }
        friend-link a:hover {
            color: #fff;
        }
        .copyright {
            text-align: center;
            font-size: 0.88rem;
            opacity: 0.7;
            padding-top: 0.8rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 1.2rem;
            }
            .main-content {
                padding: 1.5rem;
            }
            h1 {
                font-size: 2rem;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #0b1a2a;
                padding: 1rem 0 0.8rem;
                margin-top: 0.8rem;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                width: 100%;
                padding: 0.7rem 1rem;
                border-radius: 0;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .main-content {
                padding: 1.2rem;
            }
            .hero {
                padding: 1.8rem 0 2.2rem;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .search-box {
                flex-direction: column;
            }
            .search-box button {
                justify-content: center;
                padding: 0.7rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .responsive-table table {
                font-size: 0.85rem;
            }
            .responsive-table th,
            .responsive-table td {
                padding: 0.5rem 0.6rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .main-content {
                padding: 0.8rem;
                border-radius: 12px;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .hero p {
                font-size: 1rem;
            }
        }
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .align-center {
            align-items: center;
        }
        .img-placeholder {
            background: linear-gradient(135deg, #1e3a5f, #0b1a2a);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            min-height: 220px;
            font-size: 1.2rem;
            font-weight: 600;
            margin: 1.2rem 0;
            padding: 1.5rem;
            text-align: center;
        }
        .img-placeholder i {
            font-size: 3rem;
            margin-right: 1rem;
            opacity: 0.7;
        }
        .feature-list {
            list-style: none;
            padding: 0;
            display: grid;
            gap: 0.6rem;
        }
        .feature-list li {
            padding: 0.6rem 1rem;
            background: #f9fbfd;
            border-radius: 10px;
            border-left: 4px solid #e74c3c;
            font-weight: 500;
        }
        .feature-list li::before {
            content: "✓ ";
            color: #27ae60;
            font-weight: 700;
        }
        .tip-box {
            background: #fef9e7;
            border-left: 5px solid #f39c12;
            padding: 1rem 1.5rem;
            border-radius: 12px;
            margin: 1.2rem 0;
        }
        .tip-box strong {
            color: #b7950b;
        }
        .warning-box {
            background: #fdedec;
            border-left: 5px solid #e74c3c;
            padding: 1rem 1.5rem;
            border-radius: 12px;
            margin: 1.2rem 0;
        }