*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f8fafc;
            color: #1e293b;
            line-height: 1.75;
            padding-bottom: 2rem;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #0f3b5e;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #d97706;
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .site-header {
            background: linear-gradient(145deg, #0b2a3e, #1a4a6b);
            color: #f1f9ff;
            padding: 0.75rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #fbbf24, #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #fbbf24;
            font-size: 1.6rem;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .nav-list {
            list-style: none;
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .nav-list li a {
            display: block;
            padding: 0.45rem 0.9rem;
            border-radius: 50px;
            color: #e2f0fa;
            font-weight: 500;
            font-size: 0.9rem;
            transition: background 0.25s, color 0.25s;
        }
        .nav-list li a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fbbf24;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 1.4rem;
            padding: 0.3rem 0.7rem;
            border-radius: 8px;
            cursor: pointer;
            transition: border 0.2s;
        }
        .hamburger:hover {
            border-color: #fbbf24;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: #f1f5f9;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #94a3b8;
        }
        .breadcrumb a {
            color: #1e4a6b;
        }
        .breadcrumb .current {
            color: #64748b;
            font-weight: 500;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin-top: 2rem;
        }
        .main-column {
            min-width: 0;
        }
        .sidebar-column {
            position: sticky;
            top: 6rem;
            align-self: start;
        }
        h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.2;
            color: #0b2a3e;
            margin-bottom: 0.6rem;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: #0f3b5e;
            margin-top: 2.8rem;
            margin-bottom: 0.8rem;
            padding-bottom: 0.3rem;
            border-bottom: 3px solid #fbbf24;
            display: inline-block;
        }
        h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: #1a4a6b;
            margin-top: 2rem;
            margin-bottom: 0.5rem;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #2c5f7a;
            margin-top: 1.4rem;
            margin-bottom: 0.3rem;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .lead {
            font-size: 1.2rem;
            color: #34495e;
            font-weight: 400;
            background: #f1f9fe;
            padding: 1.2rem 1.6rem;
            border-radius: 16px;
            border-left: 5px solid #fbbf24;
            margin: 1.2rem 0 1.8rem;
        }
        .highlight {
            background: #fef9e7;
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.3em;
            margin-right: 0.2em;
        }
        .feature-img {
            border-radius: 20px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
            margin: 1.8rem 0 1.2rem;
            width: 100%;
            object-fit: cover;
            aspect-ratio: 16/9;
            background: #dde7f0;
        }
        .search-box {
            background: #fff;
            border-radius: 60px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            padding: 0.35rem 0.35rem 0.35rem 1.2rem;
            display: flex;
            align-items: center;
            margin: 2rem 0 1rem;
            border: 1px solid #dde7f0;
            max-width: 560px;
        }
        .search-box input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 0.7rem 0;
            font-size: 1rem;
            outline: none;
            color: #1e293b;
        }
        .search-box input::placeholder {
            color: #94a3b8;
        }
        .search-box button {
            background: #0f3b5e;
            border: none;
            color: #fff;
            padding: 0.7rem 1.6rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-box button:hover {
            background: #d97706;
        }
        .feedback-section {
            background: #ffffff;
            border-radius: 24px;
            padding: 2rem 2rem 2.2rem;
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.05);
            margin: 2.8rem 0;
            border: 1px solid #e9f0f5;
        }
        .feedback-section h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.25rem;
            font-size: 1.8rem;
            color: #fbbf24;
            margin: 0.5rem 0 0.8rem;
            cursor: pointer;
        }
        .rating-stars i {
            transition: transform 0.15s, color 0.15s;
        }
        .rating-stars i:hover {
            transform: scale(1.25);
            color: #f59e0b;
        }
        .comment-form textarea {
            width: 100%;
            border: 1px solid #dde7f0;
            border-radius: 16px;
            padding: 1rem 1.2rem;
            font-size: 1rem;
            resize: vertical;
            min-height: 100px;
            font-family: inherit;
            transition: border 0.2s;
            background: #fafcff;
        }
        .comment-form textarea:focus {
            border-color: #0f3b5e;
            outline: none;
            box-shadow: 0 0 0 3px rgba(15, 59, 94, 0.08);
        }
        .form-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-top: 1rem;
            align-items: center;
        }
        .btn {
            background: #0f3b5e;
            color: #fff;
            border: none;
            padding: 0.65rem 1.8rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .btn:hover {
            background: #d97706;
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: #0f3b5e;
            border: 2px solid #0f3b5e;
        }
        .btn-outline:hover {
            background: #0f3b5e;
            color: #fff;
        }
        .score-display {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            flex-wrap: wrap;
        }
        .score-value {
            font-size: 1.6rem;
            font-weight: 700;
            color: #0f3b5e;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 20px;
            padding: 1.6rem 1.4rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #e9f0f5;
            margin-bottom: 1.8rem;
        }
        .sidebar-card h4 {
            margin-top: 0;
            border-bottom: 2px solid #fbbf24;
            padding-bottom: 0.4rem;
            display: inline-block;
        }
        .sidebar-card ul {
            list-style: none;
            margin-top: 0.8rem;
        }
        .sidebar-card li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .sidebar-card li:last-child {
            border-bottom: none;
        }
        .sidebar-card li a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 500;
        }
        .sidebar-card li a i {
            color: #fbbf24;
            font-size: 0.8rem;
        }
        .site-footer {
            background: #0b2a3e;
            color: #cbd5e1;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3.5rem;
            border-radius: 32px 32px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .footer-logo {
            color: #fbbf24;
            font-size: 1.5rem;
            font-weight: 700;
        }
        friend-link {
            display: block;
            margin: 0.6rem 0;
        }
        friend-link a {
            color: #a8c9e0;
            padding: 0.2rem 0;
            display: inline-block;
        }
        friend-link a:hover {
            color: #fbbf24;
        }
        .copyright {
            text-align: center;
            border-top: 1px solid #1e4a6b;
            padding-top: 1.5rem;
            margin-top: 2rem;
            font-size: 0.9rem;
            color: #8196a8;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar-column {
                position: static;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: inline-flex;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(11, 42, 62, 0.98);
                border-radius: 16px;
                padding: 0.8rem 0.5rem;
                margin-top: 0.5rem;
                gap: 0.1rem;
            }
            #nav-toggle:checked+.hamburger+.nav-list {
                display: flex;
            }
            .nav-list li a {
                padding: 0.6rem 1rem;
                border-radius: 10px;
            }
            .header-inner {
                align-items: flex-start;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .lead {
                font-size: 1rem;
                padding: 1rem 1.2rem;
            }
            .search-box {
                max-width: 100%;
                flex-wrap: wrap;
                border-radius: 30px;
                padding: 0.5rem;
            }
            .search-box input {
                width: 100%;
                padding: 0.5rem 0.8rem;
            }
            .search-box button {
                width: 100%;
                justify-content: center;
                margin-top: 0.3rem;
            }
            .feedback-section {
                padding: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .rating-stars {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 1rem;
            }
            h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.2rem;
            }
        }
        .update-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: #f1f9fe;
            padding: 0.3rem 1rem;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #1e4a6b;
            font-weight: 500;
        }
        .mt-2 {
            margin-top: 1.2rem;
        }
        .flex {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-wrap: wrap;
        }
        .table-wrap {
            overflow-x: auto;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2rem 0;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e9f0f5;
        }
        th {
            background: #f1f9fe;
            font-weight: 600;
            color: #0f3b5e;
        }
        tr:hover td {
            background: #fafcff;
        }