*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f4f7fb;
            color: #1a2634;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a,
        a:visited {
            color: #1e6f9f;
            text-decoration: none;
            transition: color .2s;
        }
        a:hover,
        a:focus {
            color: #0b3b55;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
            color: #0a1e2b;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 4px solid #e63946;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #e63946;
            padding-left: 0.75rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #1e3a4b;
        }
        h4 {
            font-size: 1.15rem;
            color: #2c4a5e;
        }
        p {
            margin-bottom: 1.2rem;
        }
        strong {
            color: #b71c1c;
        }
        blockquote {
            background: #e9edf2;
            border-left: 6px solid #e63946;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
            font-style: italic;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            background: #fff;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }
        th,
        td {
            padding: 0.75rem 1rem;
            text-align: left;
            border-bottom: 1px solid #dce2e9;
        }
        th {
            background: #1e3a4b;
            color: #fff;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        header {
            background: linear-gradient(135deg, #0a1e2b 0%, #1a3a4a 100%);
            color: #f0f7fc;
            padding: 0.8rem 0;
            border-radius: 0 0 16px 16px;
            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: 1.6rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #f9d342 !important;
            text-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
            transition: transform .3s;
            display: inline-block;
        }
        .my-logo:hover {
            transform: scale(1.04);
            text-decoration: none;
            color: #ffea8a !important;
        }
        .my-logo i {
            margin-right: 0.4rem;
            color: #e63946;
        }
        nav.main-nav ul {
            display: flex;
            gap: 1.2rem;
            list-style: none;
            padding: 0;
            margin: 0;
            flex-wrap: wrap;
        }
        nav.main-nav a {
            color: #e3edf5;
            font-weight: 500;
            padding: 0.4rem 0.2rem;
            border-bottom: 2px solid transparent;
            transition: border-color .3s, color .3s;
        }
        nav.main-nav a:hover {
            color: #f9d342;
            border-bottom-color: #f9d342;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #f0f7fc;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            transition: background .2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background: #e9edf2;
            padding: 0.6rem 1.2rem;
            border-radius: 30px;
            margin: 1.2rem 0 1.8rem;
            font-size: 0.9rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb a {
            color: #1e6f9f;
        }
        .breadcrumb span {
            color: #4a5f6e;
        }
        .breadcrumb .current {
            font-weight: 600;
            color: #0a1e2b;
        }
        .feature-image {
            border-radius: 16px;
            overflow: hidden;
            margin: 1.8rem 0;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.1);
            background: #dce2e9;
            position: relative;
        }
        .feature-image figcaption {
            background: rgba(10, 30, 43, 0.8);
            color: #f0f7fc;
            padding: 0.6rem 1.2rem;
            font-size: 0.9rem;
            text-align: center;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .card {
            background: #fff;
            border-radius: 12px;
            padding: 1.6rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            transition: transform .25s, box-shadow .25s;
            border: 1px solid #e2e8f0;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
        }
        .card h3 {
            margin-top: 0;
            color: #0a1e2b;
        }
        .card i {
            color: #e63946;
            margin-right: 0.5rem;
        }
        .form-section {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #e2e8f0;
        }
        .form-section h2 {
            margin-top: 0;
            border-left-color: #f9d342;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: #1e3a4b;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #dce2e9;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color .3s;
            background: #f9fbfd;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #1e6f9f;
            background: #fff;
        }
        .btn {
            display: inline-block;
            padding: 0.7rem 2rem;
            background: #e63946;
            color: #fff !important;
            border: none;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background .3s, transform .2s;
            text-decoration: none !important;
        }
        .btn:hover {
            background: #b71c1c;
            transform: scale(1.02);
            text-decoration: none !important;
        }
        .btn-secondary {
            background: #1e3a4b;
        }
        .btn-secondary:hover {
            background: #0a1e2b;
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #dce2e9;
            cursor: pointer;
        }
        .star-rating i {
            transition: color .2s, transform .2s;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #f9d342;
            transform: scale(1.15);
        }
        footer {
            background: #0a1e2b;
            color: #cbd8e3;
            padding: 2.5rem 1.5rem 1.5rem;
            border-radius: 16px 16px 0 0;
            margin-top: 3rem;
        }
        footer a,
        footer a:visited {
            color: #aac7db;
        }
        footer a:hover {
            color: #f9d342;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-grid h4 {
            color: #f0f7fc;
            margin-top: 0;
            border-left: 3px solid #e63946;
            padding-left: 0.6rem;
        }
        friend-link {
            display: block;
            font-style: normal;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 0;
        }
        .copyright {
            border-top: 1px solid #2c4a5e;
            padding-top: 1.2rem;
            text-align: center;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 0.6rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            nav.main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 0.2rem;
                padding: 0.8rem 0 0.2rem;
            }
            nav.main-nav ul.show {
                display: flex;
            }
            nav.main-nav a {
                display: block;
                padding: 0.6rem 0.4rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .form-section {
                padding: 1.2rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding: 0.4rem 0.8rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
        }
        @media (min-width: 769px) {
            nav.main-nav ul {
                display: flex !important;
            }
        }
        .tag {
            display: inline-block;
            background: #e9edf2;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #1e3a4b;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #5a6f7e;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .last-updated i {
            color: #e63946;
        }
        .divider {
            height: 2px;
            background: linear-gradient(to right, #e63946, #f9d342);
            margin: 2rem 0;
            border: none;
        }
        .highlight-box {
            background: #f0f4f8;
            border-radius: 12px;
            padding: 1.5rem 2rem;
            border-left: 6px solid #f9d342;
            margin: 1.8rem 0;
        }
        .inline-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
            list-style: none;
            padding: 0;
            margin: 0.8rem 0;
        }
        .inline-list li {
            margin: 0;
        }
        .inline-list a {
            background: #fff;
            padding: 0.3rem 1rem;
            border-radius: 20px;
            border: 1px solid #dce2e9;
            font-size: 0.9rem;
            transition: all .2s;
        }
        .inline-list a:hover {
            background: #e63946;
            color: #fff;
            border-color: #e63946;
            text-decoration: none;
        }