* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f4f7fb;
            color: #1a2a3a;
            line-height: 1.7;
            font-size: 18px;
            padding: 0 20px;
        }
        .wrapper {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.06);
            border-radius: 28px;
            padding: 20px 30px 40px;
            margin-top: 20px;
            margin-bottom: 40px;
        }
        header {
            padding: 20px 0 10px;
            border-bottom: 2px solid #e9edf2;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .my-logo {
            font-size: 28px;
            font-weight: 800;
            color: #1a3c5e;
            text-decoration: none;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #1a3c5e, #2a6b9e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
        }
        .my-logo i {
            -webkit-text-fill-color: #2a6b9e;
            margin-right: 4px;
        }
        .my-logo:hover {
            opacity: 0.8;
        }
        .logo-tagline {
            font-size: 14px;
            color: #5a7a9a;
            font-weight: 400;
            display: none;
        }
        @media (min-width: 640px) {
            .logo-tagline {
                display: inline;
            }
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 28px;
            color: #1a3c5e;
            cursor: pointer;
            padding: 6px 12px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: #e9edf2;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        nav a {
            text-decoration: none;
            color: #2a4a6a;
            font-weight: 500;
            font-size: 16px;
            padding: 8px 16px;
            border-radius: 40px;
            transition: background 0.2s, color 0.2s;
        }
        nav a:hover,
        nav a.active {
            background: #1a3c5e;
            color: #ffffff;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 18px;
                gap: 4px;
            }
            nav.open {
                display: flex;
            }
            nav a {
                padding: 12px 18px;
                border-radius: 12px;
            }
            .wrapper {
                padding: 16px 18px 30px;
            }
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px 12px;
            padding: 16px 0 8px;
            font-size: 15px;
            color: #5a7a9a;
        }
        .breadcrumb a {
            color: #2a6b9e;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #8a9aaa;
        }
        main {
            padding: 24px 0 32px;
        }
        h1 {
            font-size: 42px;
            font-weight: 800;
            color: #0f2a3f;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 30px;
            font-weight: 700;
            color: #1a3c5e;
            margin-top: 48px;
            margin-bottom: 18px;
            border-left: 6px solid #2a6b9e;
            padding-left: 20px;
        }
        h3 {
            font-size: 24px;
            font-weight: 600;
            color: #1f4a6a;
            margin-top: 32px;
            margin-bottom: 12px;
        }
        h4 {
            font-size: 20px;
            font-weight: 600;
            color: #2a5a7a;
            margin-top: 24px;
            margin-bottom: 8px;
        }
        p {
            margin-bottom: 18px;
            color: #1e2e3e;
        }
        .lead {
            font-size: 21px;
            color: #2a4a6a;
            font-weight: 400;
            line-height: 1.8;
            border-left: 4px solid #b0c8dd;
            padding-left: 24px;
            margin-bottom: 28px;
        }
        strong {
            color: #0f2a3f;
            font-weight: 700;
        }
        em {
            color: #2a6b9e;
        }
        ul,
        ol {
            margin: 16px 0 24px 28px;
        }
        li {
            margin-bottom: 8px;
        }
        .insight-box {
            background: #eef4fa;
            border-radius: 20px;
            padding: 24px 28px;
            margin: 28px 0;
            border-left: 6px solid #2a6b9e;
        }
        .insight-box i {
            color: #2a6b9e;
            margin-right: 10px;
        }
        .feature-img {
            width: 100%;
            border-radius: 20px;
            margin: 28px 0;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
            display: block;
        }
        .link-list-inline {
            background: #f8faff;
            padding: 18px 22px;
            border-radius: 16px;
            margin: 24px 0;
            border: 1px solid #dce5ef;
        }
        .link-list-inline a {
            color: #2a6b9e;
            text-decoration: none;
            font-weight: 500;
        }
        .link-list-inline a:hover {
            text-decoration: underline;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 28px 0;
        }
        .stat-card {
            background: #ffffff;
            border: 1px solid #dfe7f0;
            border-radius: 18px;
            padding: 24px 18px;
            text-align: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.06);
        }
        .stat-card i {
            font-size: 34px;
            color: #2a6b9e;
            margin-bottom: 12px;
        }
        .stat-card .num {
            font-size: 32px;
            font-weight: 800;
            color: #0f2a3f;
        }
        .stat-card .label {
            color: #5a7a9a;
            font-size: 15px;
        }
        .form-section {
            background: #f8faff;
            border-radius: 24px;
            padding: 28px 32px;
            margin: 40px 0;
            border: 1px solid #dce5ef;
        }
        .form-section h3 {
            margin-top: 0;
            border: none;
            padding-left: 0;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            color: #1a3c5e;
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 14px 18px;
            border: 1px solid #ccd8e8;
            border-radius: 14px;
            font-size: 16px;
            font-family: inherit;
            background: #ffffff;
            transition: border 0.2s, box-shadow 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #2a6b9e;
            box-shadow: 0 0 0 4px rgba(42, 107, 158, 0.12);
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            background: #1a3c5e;
            color: #ffffff;
            font-weight: 600;
            padding: 14px 32px;
            border: none;
            border-radius: 40px;
            font-size: 17px;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .btn:hover {
            background: #2a6b9e;
            transform: scale(1.02);
        }
        .btn i {
            margin-right: 8px;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 28px;
            color: #ccd8e8;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            transition: color 0.2s, transform 0.1s;
            color: #ccd8e8;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
            transform: scale(1.08);
        }
        footer {
            border-top: 2px solid #e9edf2;
            padding-top: 32px;
            margin-top: 32px;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 24px;
        }
        .footer-col {
            flex: 1 1 200px;
        }
        .footer-col h4 {
            font-size: 18px;
            color: #0f2a3f;
            margin-bottom: 12px;
            border: none;
            padding: 0;
        }
        .footer-col a {
            display: block;
            color: #2a6b9e;
            text-decoration: none;
            padding: 4px 0;
            font-size: 15px;
        }
        .footer-col a:hover {
            text-decoration: underline;
        }
        friend-link {
            display: block;
            background: #eef4fa;
            padding: 16px 20px;
            border-radius: 16px;
            margin: 16px 0 24px;
            font-size: 15px;
        }
        friend-link a {
            color: #2a6b9e;
            text-decoration: none;
            font-weight: 500;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding: 18px 0 4px;
            font-size: 14px;
            color: #6a8aaa;
            border-top: 1px solid #e9edf2;
            margin-top: 20px;
        }
        .copyright strong {
            color: #1a3c5e;
        }
        .last-update {
            font-size: 14px;
            color: #7a9aaa;
            text-align: right;
            padding: 8px 0 0;
            border-top: 1px dashed #dce5ef;
            margin-top: 20px;
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 28px;
            }
            h2 {
                font-size: 24px;
            }
            h3 {
                font-size: 20px;
            }
            body {
                font-size: 16px;
                padding: 0 10px;
            }
            .wrapper {
                padding: 12px 14px 24px;
                border-radius: 20px;
            }
            .form-section {
                padding: 20px 18px;
            }
            .insight-box {
                padding: 18px 18px;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
            .breadcrumb {
                font-size: 13px;
            }
        }
        @media (min-width: 769px) {
            .nav-toggle {
                display: none;
            }
            nav {
                display: flex !important;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        .schema-hidden {
            display: none;
        }