* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #fafafa;
            color: #1e1e2a;
            line-height: 1.75;
            padding: 0 1rem;
        }
        a {
            color: #c0392b;
            text-decoration: none;
            transition: color .2s;
        }
        a:hover {
            color: #e74c3c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #fff;
            box-shadow: 0 0 40px rgba(0, 0, 0, .04);
            border-radius: 20px;
            padding: 1.5rem 2rem 2rem;
        }
        header {
            padding: 1.2rem 0 0.8rem;
            border-bottom: 3px solid #f1c40f;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(135deg, #1a3a5c, #c0392b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #f1c40f;
            font-size: 2rem;
        }
        .my-logo small {
            font-size: 0.7rem;
            -webkit-text-fill-color: initial;
            color: #555;
            font-weight: 400;
            display: block;
            letter-spacing: 1px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 2rem;
            color: #1a3a5c;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 8px;
            transition: background .2s;
        }
        .nav-toggle:hover {
            background: #f0f0f0;
        }
        nav {
            display: flex;
            flex-wrap: wrap;
            gap: 0.2rem 1.2rem;
            align-items: center;
        }
        nav a {
            font-weight: 600;
            color: #1a3a5c;
            padding: 0.3rem 0.6rem;
            border-radius: 8px;
            font-size: 0.95rem;
            transition: background .2s;
        }
        nav a:hover {
            background: #fef3e0;
            text-decoration: none;
            color: #c0392b;
        }
        .breadcrumb {
            padding: 0.8rem 0 0.2rem;
            font-size: 0.9rem;
            color: #777;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            width: 100%;
            margin-top: 0.5rem;
            border-top: 1px solid #eee;
        }
        .breadcrumb a {
            color: #1a3a5c;
            font-weight: 500;
        }
        .breadcrumb span {
            color: #aaa;
        }
        .hero {
            padding: 2rem 0 1.5rem;
            text-align: center;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #1a3a5c;
            line-height: 1.2;
            margin-bottom: 0.8rem;
        }
        .hero h1 i {
            color: #f1c40f;
        }
        .hero .subhead {
            font-size: 1.15rem;
            color: #555;
            max-width: 750px;
            margin: 0 auto 1.2rem;
        }
        .last-updated {
            display: inline-block;
            background: #fef9e7;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #7f8c8d;
            border: 1px solid #f1c40f40;
        }
        .last-updated i {
            margin-right: 6px;
            color: #c0392b;
        }
        section {
            padding: 1.8rem 0;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #1a3a5c;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #f1c40f;
            display: inline-block;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #2c3e50;
            margin: 1.6rem 0 0.8rem;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #34495e;
            margin: 1.2rem 0 0.6rem;
        }
        p {
            margin-bottom: 1.1rem;
            color: #2d2d3f;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 1.5rem 0;
        }
        .feature-card {
            background: #f9f9fc;
            padding: 1.4rem 1.6rem;
            border-radius: 16px;
            border-left: 5px solid #f1c40f;
            box-shadow: 0 2px 12px rgba(0, 0, 0, .03);
        }
        .feature-card i {
            color: #c0392b;
            font-size: 1.8rem;
            margin-bottom: 0.6rem;
        }
        .feature-card h4 {
            margin-top: 0;
        }
        .img-wrapper {
            margin: 1.8rem 0;
            border-radius: 16px;
            overflow: hidden;
            background: #eef2f7;
            position: relative;
        }
        .img-wrapper img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .img-wrapper .caption {
            background: rgba(26, 58, 92, .85);
            color: #fff;
            padding: 0.6rem 1.2rem;
            font-size: 0.9rem;
        }
        .highlight {
            background: #fef9e7;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .insight-box {
            background: #eaf7ee;
            padding: 1.5rem 2rem;
            border-radius: 16px;
            margin: 1.8rem 0;
            border-left: 6px solid #27ae60;
        }
        .insight-box i {
            color: #27ae60;
            margin-right: 10px;
        }
        .stat-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .stat-item {
            background: #fff;
            padding: 1.2rem;
            border-radius: 12px;
            text-align: center;
            box-shadow: 0 2px 12px rgba(0, 0, 0, .05);
            border: 1px solid #f0f0f0;
        }
        .stat-item .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #c0392b;
        }
        .stat-item .label {
            font-size: 0.9rem;
            color: #777;
            margin-top: 0.2rem;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.8rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, .04);
        }
        th {
            background: #1a3a5c;
            color: #fff;
            padding: 0.8rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #f0f0f0;
        }
        tr:hover td {
            background: #faf5eb;
        }
        .form-card {
            background: #f9f9fc;
            padding: 1.8rem 2rem;
            border-radius: 18px;
            margin: 1.8rem 0;
            border: 1px solid #eaeef2;
        }
        .form-card h3 i {
            color: #f1c40f;
            margin-right: 10px;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.4rem;
            color: #2c3e50;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #ddd;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: border .2s;
            background: #fff;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #f1c40f;
            outline: none;
        }
        .form-group textarea {
            min-height: 110px;
            resize: vertical;
        }
        .btn {
            background: #c0392b;
            color: #fff;
            border: none;
            padding: 0.8rem 2.2rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: transform .15s, background .2s;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn:hover {
            background: #a93226;
            transform: scale(1.02);
        }
        .btn i {
            font-size: 1.1rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.4rem;
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
        }
        .rating-stars i.active {
            color: #f1c40f;
        }
        .rating-stars i:hover {
            color: #f7dc6f;
        }
        friend-link {
            display: block;
            padding: 1.5rem 0 0.8rem;
            border-top: 2px solid #f0f0f0;
            margin-top: 1.5rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 1rem 0.3rem 0;
            padding: 0.3rem 1rem;
            background: #f5f5f5;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background .2s;
        }
        friend-link a:hover {
            background: #fef3e0;
            text-decoration: none;
        }
        footer {
            padding: 1.8rem 0 1.2rem;
            border-top: 2px solid #f0f0f0;
            margin-top: 1.5rem;
            text-align: center;
            color: #888;
            font-size: 0.9rem;
        }
        footer .copyright {
            margin-top: 0.8rem;
            font-size: 0.85rem;
        }
        @media (max-width: 900px) {
            .container {
                padding: 1rem 1.2rem 1.5rem;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
            .my-logo {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 700px) {
            .nav-toggle {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #fff;
                padding: 1rem 0 0.5rem;
                border-top: 1px solid #eee;
                margin-top: 0.6rem;
            }
            nav.open {
                display: flex;
            }
            nav a {
                padding: 0.6rem 0.8rem;
                border-bottom: 1px solid #f5f5f5;
                width: 100%;
            }
            header {
                align-items: flex-start;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .form-card {
                padding: 1.2rem 1rem;
            }
            .stat-list {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 0.5rem;
            }
            .container {
                padding: 0.8rem 0.8rem 1.2rem;
                border-radius: 12px;
            }
            .hero h1 {
                font-size: 1.4rem;
            }
            .stat-list {
                grid-template-columns: 1fr;
            }
            .rating-stars {
                font-size: 1.6rem;
            }
        }
        .back-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #1a3a5c;
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, .15);
            transition: transform .2s, background .2s;
            z-index: 99;
            border: none;
            cursor: pointer;
        }
        .back-top:hover {
            background: #c0392b;
            transform: translateY(-4px);
        }