*,
        *::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: #f4f7fa;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus-visible {
            color: #003d66;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1a2e, #1c3a5c);
            color: #fff;
            padding: 0.8rem 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: 0.5rem 1rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 700;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f9d976, #f39c12);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 0 30px rgba(243, 156, 18, 0.25);
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #f1c40f;
            margin-right: 6px;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: initial;
            color: rgba(255, 255, 255, 0.7);
            display: block;
            letter-spacing: 0.5px;
        }
        .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: background 0.3s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .main-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 0.2rem 0.8rem;
            align-items: center;
        }
        .main-nav a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 0.3rem 0.6rem;
            border-radius: 6px;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a:focus-visible {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 4px;
            font-size: 0.8rem;
        }
        .breadcrumb {
            background: #e9edf2;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dce2e9;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            color: #7f8c8d;
            margin-right: 0.6rem;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #2c3e50;
        }
        .breadcrumb li[aria-current="page"] {
            color: #7f8c8d;
            font-weight: 500;
        }
        .hero {
            background: linear-gradient(145deg, #0d2137, #1a3a5a);
            color: #fff;
            padding: 3rem 0 2.5rem;
            text-align: center;
            border-bottom: 4px solid #f1c40f;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 0.6rem;
            letter-spacing: -0.5px;
        }
        .hero h1 i {
            color: #f1c40f;
            margin-right: 10px;
        }
        .hero .subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 700px;
            margin: 0 auto 1.2rem;
        }
        .hero .meta-info {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.2rem 2rem;
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .hero .meta-info i {
            margin-right: 5px;
            color: #f1c40f;
        }
        .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: 650px;
            margin: 0 auto;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #dce2e9;
            border-radius: 60px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .search-form input[type="text"]:focus {
            border-color: #f1c40f;
        }
        .search-form button {
            background: #1c3a5c;
            color: #fff;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 60px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #0d2137;
            transform: scale(1.02);
        }
        .main-content {
            padding: 2.5rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        .content-body h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin: 2.2rem 0 0.8rem;
            color: #0b1a2e;
            border-left: 5px solid #f1c40f;
            padding-left: 1rem;
        }
        .content-body h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin: 1.8rem 0 0.6rem;
            color: #1c3a5c;
        }
        .content-body h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 1.4rem 0 0.4rem;
            color: #2c3e50;
        }
        .content-body p {
            margin-bottom: 1.1rem;
            font-size: 1.02rem;
        }
        .content-body .highlight-box {
            background: #eef3f9;
            border-left: 4px solid #f1c40f;
            padding: 1.2rem 1.8rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .content-body .highlight-box i {
            color: #f1c40f;
            margin-right: 6px;
        }
        .feature-image {
            margin: 2rem 0;
            border-radius: 14px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.6rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            margin-bottom: 1.8rem;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            color: #0b1a2e;
            border-bottom: 2px solid #f1c40f;
            padding-bottom: 0.5rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0f2f5;
        }
        .sidebar-card li:last-child {
            border-bottom: none;
        }
        .sidebar-card a {
            display: block;
            font-weight: 500;
            padding: 0.2rem 0;
        }
        .sidebar-card a i {
            margin-right: 6px;
            color: #f1c40f;
            font-size: 0.8rem;
        }
        .interaction-area {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #e9edf2;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        .comment-section,
        .rating-section {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
        }
        .comment-section h3,
        .rating-section h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: #0b1a2e;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .comment-section h3 i,
        .rating-section h3 i {
            color: #f1c40f;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #dce2e9;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            resize: vertical;
            transition: border-color 0.3s;
            margin-bottom: 0.8rem;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: #f1c40f;
            outline: none;
        }
        .comment-form textarea {
            min-height: 100px;
        }
        .comment-form button {
            background: #1c3a5c;
            color: #fff;
            border: none;
            padding: 0.7rem 1.8rem;
            border-radius: 60px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .comment-form button:hover {
            background: #0d2137;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #dce2e9;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f1c40f;
        }
        .rating-section .score-btn {
            background: #f1c40f;
            color: #0b1a2e;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .rating-section .score-btn:hover {
            background: #e0b50e;
            transform: scale(1.02);
        }
        friend-link {
            display: block;
            padding: 1.8rem 0;
            border-top: 2px solid #e9edf2;
            margin-top: 2.5rem;
        }
        friend-link h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: #0b1a2e;
        }
        friend-link ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.5rem;
        }
        friend-link a {
            font-weight: 500;
            padding: 0.2rem 0.6rem;
            background: #eef3f9;
            border-radius: 30px;
            transition: background 0.25s, color 0.25s;
            display: inline-block;
        }
        friend-link a:hover {
            background: #1c3a5c;
            color: #fff;
            text-decoration: none;
        }
        .site-footer {
            background: #0b1a2e;
            color: rgba(255, 255, 255, 0.8);
            padding: 2rem 0 1.5rem;
            text-align: center;
            font-size: 0.92rem;
        }
        .site-footer .copyright {
            margin-top: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.85rem;
        }
        .site-footer .copyright i {
            color: #f1c40f;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: #0d2137;
                padding: 1rem 0.8rem;
                border-radius: 12px;
                margin-top: 0.5rem;
                gap: 0.3rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 0.8rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .hero .subtitle {
                font-size: 1rem;
            }
            .breadcrumb ol {
                font-size: 0.8rem;
            }
            .search-form input[type="text"] {
                min-width: 150px;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .content-body h2 {
                font-size: 1.5rem;
            }
            .content-body h3 {
                font-size: 1.2rem;
            }
            friend-link ul {
                flex-direction: column;
                gap: 0.4rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .hero {
                padding: 2rem 0 1.5rem;
            }
            .hero h1 {
                font-size: 1.4rem;
            }
            .hero .meta-info {
                flex-direction: column;
                gap: 0.4rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
            .star-rating {
                font-size: 1.6rem;
            }
        }
        .text-muted {
            color: #7f8c8d;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .last-updated {
            font-size: 0.85rem;
            color: #7f8c8d;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex-wrap: wrap;
        }
        .last-updated i {
            color: #f1c40f;
        }