*,
        *::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: #f8f9fc;
            color: #1e293b;
            line-height: 1.7;
            padding: 0;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #1a56db;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #0d3a9e;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
        li {
            margin-bottom: 0.35rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: #0f172a;
            margin-top: 0;
            font-weight: 700;
        }
        h1 {
            font-size: 2.2rem;
            margin-bottom: 1.2rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.7rem;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 0.4rem;
            border-bottom: 2px solid #e2e8f0;
        }
        h3 {
            font-size: 1.3rem;
            margin-top: 1.8rem;
            margin-bottom: 0.7rem;
        }
        h4 {
            font-size: 1.1rem;
            margin-top: 1.3rem;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1a33 0%, #1a3a6b 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fbbf24;
            letter-spacing: -0.03em;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            transition: opacity 0.2s;
        }
        .my-logo i {
            color: #f59e0b;
            font-size: 1.8rem;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
            color: #fbbf24;
        }
        .my-logo small {
            font-size: 0.6rem;
            font-weight: 400;
            color: #94a3b8;
            display: block;
            line-height: 1;
            letter-spacing: 0.02em;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .main-nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #e2e8f0;
            padding: 0.4rem 0.9rem;
            border-radius: 30px;
            font-size: 0.88rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fbbf24;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 0.3rem;
            font-size: 0.8rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background: #eef2f7;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #dce2ec;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #64748b;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #1a56db;
        }
        .breadcrumb .current {
            color: #475569;
            font-weight: 500;
        }
        .hero {
            background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
            padding: 2.5rem 0;
            text-align: center;
            border-bottom: 4px solid #d97706;
        }
        .hero h1 {
            font-size: 2.6rem;
            color: #0b1a33;
            margin-bottom: 0.5rem;
            border: none;
        }
        .hero p {
            font-size: 1.2rem;
            color: #1e293b;
            max-width: 750px;
            margin: 0 auto 0.8rem;
        }
        .hero .last-updated {
            display: inline-block;
            background: rgba(255, 255, 255, 0.5);
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #1e293b;
            font-weight: 500;
        }
        .search-section {
            background: #fff;
            padding: 1.2rem 0;
            border-bottom: 1px solid #e2e8f0;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            max-width: 640px;
            margin: 0 auto;
        }
        .search-form input[type="text"] {
            flex: 1;
            padding: 0.7rem 1.2rem;
            border: 2px solid #d1d9e6;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.2s;
        }
        .search-form input[type="text"]:focus {
            border-color: #1a56db;
        }
        .search-form button {
            background: #1a56db;
            color: #fff;
            border: none;
            padding: 0.7rem 1.8rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .search-form button:hover {
            background: #0d3a9e;
            transform: scale(1.02);
        }
        .search-form button i {
            margin-right: 0.4rem;
        }
        .main-wrap {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2.5rem 0;
        }
        .content-area {
            min-width: 0;
        }
        .sidebar {
            min-width: 0;
        }
        .content-area p,
        .content-area li {
            font-size: 1.02rem;
        }
        .content-area .feature-img {
            border-radius: 16px;
            margin: 1.8rem 0 2.2rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            width: 100%;
        }
        .content-area .highlight-box {
            background: #eef2ff;
            border-left: 5px solid #1a56db;
            padding: 1.2rem 1.6rem;
            border-radius: 0 12px 12px 0;
            margin: 1.8rem 0;
        }
        .content-area .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .content-area .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .content-area .stat-card {
            background: #fff;
            border-radius: 14px;
            padding: 1.2rem 1rem;
            text-align: center;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
            border: 1px solid #edf2f7;
        }
        .content-area .stat-card .num {
            font-size: 2rem;
            font-weight: 800;
            color: #1a56db;
            display: block;
        }
        .content-area .stat-card .label {
            font-size: 0.85rem;
            color: #475569;
            font-weight: 500;
        }
        .content-area .tip-card {
            background: #fef9e7;
            border-radius: 14px;
            padding: 1.2rem 1.5rem;
            margin: 1.5rem 0;
            border: 1px solid #fde68a;
        }
        .content-area .tip-card i {
            color: #d97706;
            margin-right: 0.5rem;
        }
        .sidebar .side-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            margin-bottom: 1.8rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #edf2f7;
        }
        .sidebar .side-card h3 {
            font-size: 1.15rem;
            margin-top: 0;
            margin-bottom: 0.8rem;
            border: none;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .sidebar .side-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar .side-card li {
            padding: 0.3rem 0;
            border-bottom: 1px solid #f1f5f9;
            font-size: 0.92rem;
        }
        .sidebar .side-card li:last-child {
            border-bottom: none;
        }
        .sidebar .side-card a {
            display: block;
            padding: 0.2rem 0;
        }
        .feedback-section {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 2.2rem;
            margin: 2.5rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #edf2f7;
        }
        .feedback-section h2 {
            border: none;
            margin-top: 0;
            padding: 0;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            font-weight: 600;
            display: block;
            margin-bottom: 0.3rem;
            font-size: 0.95rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #d1d9e6;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            transition: border-color 0.2s;
            background: #fafcff;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #1a56db;
            outline: none;
        }
        .form-group textarea {
            min-height: 110px;
            resize: vertical;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.2rem;
        }
        .btn-primary {
            background: #1a56db;
            color: #fff;
            border: none;
            padding: 0.8rem 2.2rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .btn-primary:hover {
            background: #0d3a9e;
            transform: scale(1.02);
        }
        .btn-primary i {
            margin-right: 0.4rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #d1d9e6;
            cursor: pointer;
            transition: color 0.15s;
        }
        .rating-stars .star {
            transition: color 0.15s;
        }
        .rating-stars .star.active,
        .rating-stars .star:hover {
            color: #f59e0b;
        }
        .site-footer {
            background: #0b1a33;
            color: #cbd5e1;
            padding: 2.5rem 0 1.8rem;
            margin-top: 2rem;
            border-top: 4px solid #fbbf24;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .site-footer h4 {
            color: #fbbf24;
            margin-bottom: 0.8rem;
            font-size: 1.05rem;
            border: none;
            padding: 0;
        }
        .site-footer a {
            color: #94a3b8;
        }
        .site-footer a:hover {
            color: #fbbf24;
            text-decoration: none;
        }
        .site-footer .copyright {
            border-top: 1px solid #1e3a5f;
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.88rem;
            color: #64748b;
        }
        .site-footer .copyright strong {
            color: #94a3b8;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 12px;
            padding: 0.8rem 1.2rem;
            margin-top: 0.6rem;
            font-size: 0.9rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.2rem;
            padding: 0.15rem 0;
        }
        @media (max-width: 992px) {
            .main-wrap {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .sidebar {
                order: 2;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            h1 {
                font-size: 1.9rem;
            }
            .hero h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0f2745;
                padding: 0.8rem;
                border-radius: 12px;
                margin-top: 0.5rem;
                gap: 0.2rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 1rem;
                border-radius: 8px;
            }
            .header-inner {
                align-items: center;
            }
            .nav-wrapper {
                width: 100%;
                flex-wrap: wrap;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .search-form {
                flex-direction: column;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .feedback-section {
                padding: 1.5rem;
            }
            .content-area .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .my-logo small {
                font-size: 0.5rem;
            }
            .content-area .stat-grid {
                grid-template-columns: 1fr;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
        }
        .text-muted {
            color: #64748b;
            font-size: 0.9rem;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .gap-1 {
            gap: 1rem;
        }