*,
        *::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, sans-serif;
            background: #f8f9fa;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #005bb5;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #e63946;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
        li {
            margin-bottom: 0.35rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0a1f3e 0%, #1a3a5c 100%);
            color: #fff;
            padding: 1rem 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;
            gap: 0.75rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            color: #f1c40f;
            text-decoration: none;
        }
        .my-logo i {
            font-size: 2rem;
            color: #f1c40f;
        }
        .my-logo span {
            font-weight: 300;
            color: #b0c4de;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #e0e8f0;
            padding: 0.5rem 0.9rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #f1c40f;
            text-decoration: none;
        }
        .main-nav a.active {
            background: #f1c40f;
            color: #0a1f3e;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: rotate(90deg);
        }
        .breadcrumb {
            background: #eef2f7;
            padding: 0.7rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #dce3ed;
        }
        .breadcrumb .container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.3rem;
        }
        .breadcrumb a {
            color: #2c3e50;
        }
        .breadcrumb a:hover {
            color: #e63946;
        }
        .breadcrumb span {
            color: #6c757d;
        }
        .breadcrumb .sep {
            margin: 0 0.3rem;
            color: #adb5bd;
        }
        .hero {
            background: linear-gradient(135deg, #0f2b4a 0%, #1e4d6e 100%);
            color: #fff;
            padding: 3rem 0 2.5rem;
            text-align: center;
            border-bottom: 5px solid #f1c40f;
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 0.75rem;
            line-height: 1.2;
        }
        .hero h1 i {
            color: #f1c40f;
            margin-right: 0.5rem;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 750px;
            margin: 0 auto 1.25rem;
            opacity: 0.92;
            font-weight: 300;
        }
        .hero .meta-info {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1.5rem;
            font-size: 0.95rem;
        }
        .hero .meta-info span {
            background: rgba(255, 255, 255, 0.12);
            padding: 0.3rem 1rem;
            border-radius: 30px;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-section {
            background: #fff;
            padding: 1.5rem 0;
            border-bottom: 1px solid #e9ecef;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
        }
        .search-form input {
            flex: 1;
            border: none;
            padding: 0.9rem 1.5rem;
            font-size: 1rem;
            outline: none;
            background: #f1f4f8;
        }
        .search-form button {
            background: #0a1f3e;
            color: #fff;
            border: none;
            padding: 0 1.8rem;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.25s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #e63946;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2.5rem 0;
        }
        .content-area h2 {
            font-size: 1.9rem;
            margin: 2.2rem 0 1rem;
            color: #0a1f3e;
            border-left: 5px solid #f1c40f;
            padding-left: 1rem;
        }
        .content-area h3 {
            font-size: 1.4rem;
            margin: 1.8rem 0 0.8rem;
            color: #1a3a5c;
        }
        .content-area h4 {
            font-size: 1.15rem;
            margin: 1.2rem 0 0.5rem;
            color: #2c3e50;
            font-weight: 600;
        }
        .content-area p {
            margin-bottom: 1.1rem;
            text-align: justify;
        }
        .content-area .feature-box {
            background: #f0f4fb;
            border-radius: 16px;
            padding: 1.5rem 1.8rem;
            margin: 1.8rem 0;
            border-left: 6px solid #f1c40f;
        }
        .content-area .feature-box i {
            color: #f1c40f;
            margin-right: 0.5rem;
        }
        .content-area .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .content-area .stat-card {
            background: #fff;
            border-radius: 12px;
            padding: 1.2rem;
            text-align: center;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
            border: 1px solid #e9ecef;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .content-area .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
        }
        .content-area .stat-card .num {
            font-size: 2rem;
            font-weight: 800;
            color: #0a1f3e;
        }
        .content-area .stat-card .label {
            font-size: 0.9rem;
            color: #6c757d;
        }
        .content-area .highlight {
            background: #fff9e6;
            padding: 0.2rem 0.5rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .content-area .inline-img {
            border-radius: 16px;
            margin: 1.8rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }
        .sidebar {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 1.5rem;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
            border: 1px solid #e9ecef;
            align-self: start;
            position: sticky;
            top: 90px;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            color: #0a1f3e;
            border-bottom: 3px solid #f1c40f;
            padding-bottom: 0.5rem;
            margin-bottom: 1.2rem;
        }
        .sidebar .link-list {
            list-style: none;
            padding: 0;
        }
        .sidebar .link-list li {
            padding: 0.5rem 0;
            border-bottom: 1px solid #f0f0f0;
        }
        .sidebar .link-list li a {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 500;
        }
        .sidebar .link-list li a i {
            color: #f1c40f;
            width: 1.2rem;
            text-align: center;
        }
        .interaction-section {
            background: #fff;
            border-radius: 16px;
            padding: 2rem;
            margin: 2rem 0;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #e9ecef;
        }
        .interaction-section h3 {
            margin-top: 0;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #dce3ed;
            border-radius: 10px;
            font-size: 1rem;
            margin-bottom: 0.8rem;
            font-family: inherit;
            transition: border 0.2s;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: #f1c40f;
            outline: none;
            box-shadow: 0 0 0 3px rgba(241, 196, 15, 0.15);
        }
        .comment-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            background: #0a1f3e;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn:hover {
            background: #e63946;
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: #0a1f3e;
            border: 2px solid #0a1f3e;
        }
        .btn-outline:hover {
            background: #0a1f3e;
            color: #fff;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            cursor: pointer;
            margin: 0.8rem 0 1rem;
        }
        .rating-stars i {
            color: #ddd;
            transition: color 0.2s, transform 0.15s;
        }
        .rating-stars i.active,
        .rating-stars i:hover {
            color: #f1c40f;
            transform: scale(1.1);
        }
        .rating-stars i:hover~i {
            color: #ddd;
        }
        .site-footer {
            background: #0a1f3e;
            color: #b0c4de;
            padding: 2.5rem 0 0;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .site-footer h4 {
            color: #f1c40f;
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }
        .site-footer a {
            color: #b0c4de;
            display: block;
            padding: 0.25rem 0;
            font-size: 0.9rem;
        }
        .site-footer a:hover {
            color: #f1c40f;
            text-decoration: none;
        }
        .footer-bottom {
            text-align: center;
            padding: 1.2rem 0;
            font-size: 0.85rem;
            color: #7a8ba8;
        }
        .footer-bottom .copy {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1rem;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 1rem 1.2rem;
            border-radius: 12px;
            margin: 1rem 0 0.5rem;
            font-size: 0.9rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 0.8rem 0.2rem 0;
            padding: 0.2rem 0.6rem;
            background: rgba(241, 196, 15, 0.12);
            border-radius: 20px;
            color: #f1c40f;
        }
        friend-link a:hover {
            background: #f1c40f;
            color: #0a1f3e;
        }
        @media (max-width: 992px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #0a1f3e;
                padding: 1rem 0.5rem;
                border-radius: 0 0 16px 16px;
                margin-top: 0.5rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.7rem 1rem;
                width: 100%;
                text-align: center;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .content-area h2 {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 1rem;
            }
            .interaction-section {
                padding: 1.2rem;
            }
            .search-form {
                flex-direction: column;
                border-radius: 20px;
            }
            .search-form button {
                padding: 0.8rem;
                justify-content: center;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #0a1f3e;
            color: #f1c40f;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            transition: all 0.3s;
            z-index: 999;
            border: none;
            cursor: pointer;
        }
        .scroll-top:hover {
            background: #f1c40f;
            color: #0a1f3e;
            transform: translateY(-4px);
        }
        @media print {
            .site-header,
            .search-section,
            .scroll-top,
            .interaction-section,
            .sidebar {
                display: none !important;
            }
            .main-grid {
                display: block;
            }
            .hero {
                padding: 1rem 0;
                background: #fff;
                color: #000;
                border-bottom: 2px solid #000;
            }
        }