*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #f4f7fc;
            color: #1e2a3a;
            line-height: 1.7;
            font-size: 1.0625rem;
        }
        a {
            color: #1a5c8a;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus {
            color: #0e3b5c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.25rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .site-header {
            background: linear-gradient(145deg, #0b1a2b, #132d44);
            color: #fff;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            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;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #7dd3fc, #3b82f6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.85rem;
            font-weight: 400;
            -webkit-text-fill-color: #aac8e4;
            color: #aac8e4;
            display: block;
            font-style: italic;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }
        .main-nav a {
            color: #e0edf7;
            font-weight: 500;
            font-size: 1rem;
            padding: 0.4rem 0.2rem;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        .main-nav a:hover {
            color: #fff;
            border-bottom-color: #3b82f6;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
        }
        .nav-overlay {
            display: none;
        }
        .breadcrumb {
            background: #e9eef3;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d0dce8;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            padding-left: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #6b7b8c;
        }
        .breadcrumb a {
            color: #1a5c8a;
        }
        .breadcrumb .current {
            color: #4a5a6a;
            font-weight: 500;
        }
        .search-section {
            background: #fff;
            padding: 1.8rem 0;
            border-bottom: 1px solid #dce5ed;
        }
        .search-form {
            display: flex;
            max-width: 640px;
            margin: 0 auto;
            border-radius: 60px;
            overflow: hidden;
            box-shadow: 0 4px 14px rgba(0, 20, 40, 0.08);
            border: 1px solid #cfdbe8;
        }
        .search-form input {
            flex: 1;
            border: none;
            padding: 0.9rem 1.5rem;
            font-size: 1rem;
            outline: none;
            background: #fff;
        }
        .search-form button {
            background: #1a5c8a;
            border: none;
            color: #fff;
            padding: 0 1.8rem;
            font-size: 1.2rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: #0e3b5c;
        }
        .main-content {
            padding: 2.5rem 0 3rem;
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 0.75rem;
            color: #0b1a2b;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-top: 3rem;
            margin-bottom: 1rem;
            color: #132d44;
            border-bottom: 3px solid #3b82f6;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-top: 2.2rem;
            margin-bottom: 0.7rem;
            color: #1e3a5a;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 1.6rem;
            margin-bottom: 0.4rem;
            color: #2a4a6a;
        }
        p {
            margin-bottom: 1.1rem;
        }
        .lead {
            font-size: 1.25rem;
            color: #2a4055;
            font-weight: 400;
            line-height: 1.8;
        }
        .card {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.04);
            margin-bottom: 2rem;
            border: 1px solid #e6edf5;
            transition: box-shadow 0.2s;
        }
        .card:hover {
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.07);
        }
        .card-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: #0b1a2b;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 1.8rem;
        }
        .stat-box {
            text-align: center;
            background: #fff;
            padding: 1.5rem 1rem;
            border-radius: 16px;
            border: 1px solid #e0eaf3;
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: #1a5c8a;
            line-height: 1.2;
        }
        .stat-label {
            color: #4a6a8a;
            font-weight: 500;
            font-size: 0.95rem;
        }
        .featured-image {
            border-radius: 16px;
            margin: 2rem 0;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.06);
        }
        .image-caption {
            font-size: 0.9rem;
            color: #5a6a7a;
            margin-top: 0.4rem;
            font-style: italic;
        }
        .comment-section,
        .rating-section {
            background: #fff;
            border-radius: 16px;
            padding: 2rem;
            border: 1px solid #e0eaf3;
            margin-top: 2.5rem;
        }
        .comment-section h3,
        .rating-section h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: #1e3a5a;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #cbd8e6;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #3b82f6;
            outline: none;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
        }
        .btn {
            display: inline-block;
            background: #1a5c8a;
            color: #fff;
            padding: 0.7rem 2rem;
            border: none;
            border-radius: 60px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .btn:hover {
            background: #0e3b5c;
            transform: translateY(-1px);
            text-decoration: none;
        }
        .btn-secondary {
            background: #e2eaf2;
            color: #1a2a3a;
        }
        .btn-secondary:hover {
            background: #cbd8e6;
        }
        .star-rating {
            display: flex;
            gap: 0.4rem;
            font-size: 2rem;
            color: #d0d8e0;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating i {
            transition: color 0.15s;
        }
        .star-rating i:hover,
        .star-rating i:hover~i {
            color: #f5b342;
        }
        .star-rating input {
            display: none;
        }
        .star-rating input:checked~i {
            color: #f5b342;
        }
        .site-footer {
            background: #0b1a2b;
            color: #b0c8dd;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }
        .site-footer a {
            color: #8bb8dd;
        }
        .site-footer a:hover {
            color: #cde4f5;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
        }
        .footer-copyright {
            border-top: 1px solid #1d3a52;
            padding-top: 1.5rem;
            margin-top: 2rem;
            text-align: center;
            font-size: 0.9rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.5rem;
        }
        friend-link a {
            font-weight: 500;
        }
        @media (max-width: 900px) {
            .grid-2,
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.8rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100vh;
                background: rgba(11, 26, 43, 0.98);
                flex-direction: column;
                justify-content: center;
                align-items: center;
                gap: 2rem;
                transform: translateX(100%);
                transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                z-index: 200;
            }
            .main-nav.open {
                transform: translateX(0);
            }
            .main-nav a {
                font-size: 1.6rem;
                color: #e0edf7;
                border-bottom: none;
            }
            .main-nav a:hover {
                border-bottom: none;
                color: #7dd3fc;
            }
            .nav-overlay {
                display: none;
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                z-index: 150;
                background: rgba(0, 0, 0, 0.3);
            }
            .nav-overlay.active {
                display: block;
            }
            .close-nav {
                position: absolute;
                top: 1.5rem;
                right: 2rem;
                background: none;
                border: none;
                color: #fff;
                font-size: 2.5rem;
                cursor: pointer;
            }
            .stat-number {
                font-size: 2rem;
            }
            .header-inner {
                padding: 0 0.5rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .card {
                padding: 1.2rem 1.2rem;
            }
            .comment-section,
            .rating-section {
                padding: 1.2rem;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            body {
                font-size: 1rem;
            }
            .search-form input {
                padding: 0.7rem 1rem;
                font-size: 0.95rem;
            }
            .search-form button {
                padding: 0 1.2rem;
            }
        }
        .highlight {
            background: #eef4ff;
            padding: 0.1rem 0.3rem;
            border-radius: 6px;
        }
        .emoji-lg {
            font-size: 1.6rem;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .tag {
            display: inline-block;
            background: #e0eaf3;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            color: #1a5c8a;
        }
        .last-updated {
            color: #5a6a7a;
            font-size: 0.9rem;
            border-top: 1px solid #dce5ed;
            padding-top: 1.2rem;
            margin-top: 2.5rem;
        }