* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f8f9fa;
            color: #1e2a3a;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #004d7a;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #e85d2c;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(145deg, #0b1a2e, #1a2f44);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }
        .header-grid {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px 20px;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #ffb347;
            text-shadow: 0 2px 8px rgba(255, 179, 71, 0.3);
            transition: transform 0.2s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo:hover {
            transform: scale(1.02);
            color: #ffc107;
        }
        .my-logo i {
            font-size: 1.8rem;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            color: #aac7e0;
            letter-spacing: 0.3px;
            display: block;
            line-height: 1;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 6px 16px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-list a {
            color: #e6edf5;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 10px;
            border-radius: 20px;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .nav-list a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #ffb347;
        }
        .nav-list a.active {
            background: #ffb347;
            color: #0b1a2e;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb-wrap {
            background: #eef3f7;
            padding: 12px 0;
            border-bottom: 1px solid #dce5ec;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 6px 12px;
            font-size: 0.92rem;
            color: #3a5a7a;
        }
        .breadcrumb li+li::before {
            content: "▸";
            margin-right: 10px;
            color: #8aa3b9;
        }
        .breadcrumb a {
            color: #004d7a;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #1e2a3a;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, #0f253b, #1d3b5a);
            color: #fff;
            padding: 50px 0 40px;
            border-radius: 0 0 40px 40px;
            margin-bottom: 30px;
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .hero h1 i {
            color: #ffb347;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 780px;
            opacity: 0.92;
            margin-bottom: 20px;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 30px;
            font-size: 0.95rem;
            color: #c8dae9;
        }
        .hero-meta span i {
            margin-right: 6px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 10px 0 50px;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        .main-article h2 {
            font-size: 2rem;
            color: #0b1a2e;
            margin: 48px 0 18px;
            padding-bottom: 8px;
            border-bottom: 4px solid #ffb347;
            display: inline-block;
        }
        .main-article h3 {
            font-size: 1.5rem;
            color: #1a3a5a;
            margin: 34px 0 14px;
        }
        .main-article h4 {
            font-size: 1.2rem;
            color: #2a4a6a;
            margin: 24px 0 10px;
            font-weight: 600;
        }
        .main-article p {
            margin-bottom: 18px;
            text-align: justify;
        }
        .main-article .highlight-box {
            background: #eef6fc;
            border-left: 6px solid #ffb347;
            padding: 20px 26px;
            border-radius: 12px;
            margin: 28px 0;
            font-size: 1.05rem;
        }
        .main-article .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 18px;
            margin: 30px 0;
        }
        .main-article .stat-card {
            background: #fff;
            border-radius: 16px;
            padding: 20px 16px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            text-align: center;
            border: 1px solid #e8edf2;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .main-article .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
        }
        .main-article .stat-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #004d7a;
        }
        .main-article .stat-card .label {
            font-size: 0.92rem;
            color: #4a6a8a;
            margin-top: 4px;
        }
        .main-article .featured-image {
            margin: 30px 0;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
        }
        .main-article .featured-image figcaption {
            background: #f1f5f9;
            padding: 10px 18px;
            font-size: 0.9rem;
            color: #3a5a7a;
            font-style: italic;
        }
        .main-article ul,
        .main-article ol {
            margin: 16px 0 20px 28px;
        }
        .main-article li {
            margin-bottom: 8px;
        }
        .inline-link {
            font-weight: 600;
            color: #004d7a;
            border-bottom: 2px solid #ffb347;
            padding-bottom: 1px;
        }
        .inline-link:hover {
            color: #e85d2c;
            border-bottom-color: #e85d2c;
        }
        .sidebar {
            background: #fff;
            border-radius: 24px;
            padding: 28px 22px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
            border: 1px solid #e4ebf2;
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            color: #0b1a2e;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
            border-bottom: 3px solid #ffb347;
            padding-bottom: 10px;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar ul li {
            margin-bottom: 10px;
            border-bottom: 1px solid #f0f4f8;
            padding-bottom: 10px;
        }
        .sidebar ul li a {
            display: flex;
            align-items: baseline;
            gap: 6px;
            font-weight: 500;
            color: #1e3a5a;
            transition: color 0.2s, padding-left 0.2s;
        }
        .sidebar ul li a:hover {
            color: #e85d2c;
            padding-left: 4px;
        }
        .sidebar ul li a i {
            color: #ffb347;
            font-size: 0.8rem;
        }
        .interaction-section {
            background: #fff;
            border-radius: 24px;
            padding: 32px 28px;
            margin: 40px 0;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
            border: 1px solid #e4ebf2;
        }
        .interaction-section h2 {
            border-bottom: none;
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 6px;
            color: #1e3a5a;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #dce5ec;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color 0.2s, box-shadow 0.2s;
            background: #fafcfe;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #ffb347;
            box-shadow: 0 0 0 4px rgba(255, 179, 71, 0.15);
        }
        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }
        .btn {
            background: linear-gradient(145deg, #004d7a, #003456);
            color: #fff;
            border: none;
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 77, 122, 0.3);
        }
        .btn-secondary {
            background: #ffb347;
            color: #0b1a2e;
        }
        .btn-secondary:hover {
            box-shadow: 0 8px 24px rgba(255, 179, 71, 0.35);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #d0d8e0;
            cursor: pointer;
            transition: color 0.15s;
        }
        .rating-stars i.active {
            color: #ffb347;
        }
        .rating-stars i:hover,
        .rating-stars i.hover {
            color: #ffc107;
        }
        .friend-links-wrap {
            background: #1a2f44;
            color: #dce5ec;
            padding: 40px 0;
            margin-top: 40px;
            border-radius: 40px 40px 0 0;
        }
        .friend-links-wrap h3 {
            color: #ffb347;
            font-size: 1.4rem;
            margin-bottom: 20px;
            text-align: center;
        }
        friend-link {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px 28px;
            font-size: 1rem;
        }
        friend-link a {
            color: #c8dae9;
            border-bottom: 2px solid transparent;
            transition: color 0.2s, border-color 0.2s;
            padding-bottom: 2px;
        }
        friend-link a:hover {
            color: #ffb347;
            border-bottom-color: #ffb347;
        }
        .site-footer {
            background: #0b1a2e;
            color: #aabccf;
            padding: 28px 0 24px;
            text-align: center;
            font-size: 0.92rem;
        }
        .site-footer .copyright {
            letter-spacing: 0.3px;
        }
        .site-footer .copyright i {
            color: #ffb347;
        }
        @media (max-width: 768px) {
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0f253b;
                padding: 18px 12px;
                border-radius: 16px;
                margin-top: 10px;
                gap: 8px;
            }
            .nav-list.open {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .header-grid {
                flex-wrap: wrap;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .breadcrumb {
                font-size: 0.82rem;
                gap: 4px 8px;
            }
            .breadcrumb li+li::before {
                margin-right: 6px;
            }
            .main-article h2 {
                font-size: 1.6rem;
            }
            .main-article h3 {
                font-size: 1.25rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
            .interaction-section {
                padding: 22px 16px;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .rating-stars {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .container {
                padding: 0 14px;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        .last-updated {
            display: inline-block;
            background: #e8f0f8;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #1a4a6a;
            font-weight: 500;
        }