*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f4f7fc;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #0d6efd;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #0a58ca;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #0b1a2e;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.5rem;
        }
        h2 {
            font-size: 1.9rem;
            border-left: 5px solid #0d6efd;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.2rem;
        }
        p {
            margin-bottom: 1.2rem;
        }
        strong {
            font-weight: 700;
            color: #0b1a2e;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.04);
            padding: 1.5rem 2rem 2rem;
            margin-top: 1.5rem;
            margin-bottom: 2rem;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 0.8rem 0 1rem;
            border-bottom: 2px solid #e9edf4;
            position: relative;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #0d6efd, #6610f2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.85;
        }
        .logo-sub {
            font-size: 0.7rem;
            display: block;
            color: #6c757d;
            -webkit-text-fill-color: #6c757d;
            font-weight: 400;
            letter-spacing: 1px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            font-weight: 500;
            color: #1a1a2e;
            padding: 0.3rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s ease, color 0.2s ease;
            font-size: 0.95rem;
        }
        .main-nav a:hover {
            background: #e9edf4;
            color: #0d6efd;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 0.3rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #1a1a2e;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #e9edf4;
        }
        .nav-toggle {
            display: none;
        }
        .nav-toggle:checked~.main-nav {
            display: flex;
            flex-direction: column;
            width: 100%;
            padding-top: 1rem;
            gap: 0.6rem;
        }
        .nav-toggle:checked~.main-nav a {
            width: 100%;
            padding: 0.6rem 1rem;
            background: #f4f7fc;
            border-radius: 10px;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0.8rem 0 0.2rem;
            margin-bottom: 0.5rem;
            font-size: 0.9rem;
            color: #6c757d;
        }
        .breadcrumb li {
            margin-bottom: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 0.6rem;
            color: #adb5bd;
        }
        .breadcrumb a {
            color: #0d6efd;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .last-updated {
            font-size: 0.85rem;
            color: #6c757d;
            background: #f0f3f8;
            padding: 0.3rem 0.8rem;
            border-radius: 30px;
            display: inline-block;
            margin-bottom: 1.5rem;
        }
        .last-updated i {
            margin-right: 0.3rem;
        }
        .hero-img {
            margin: 1.5rem 0 2rem;
            border-radius: 16px;
            overflow: hidden;
            background: #e9edf4;
            position: relative;
        }
        .hero-img img {
            width: 100%;
            object-fit: cover;
            max-height: 420px;
            min-height: 200px;
        }
        .hero-img figcaption {
            font-size: 0.85rem;
            color: #6c757d;
            padding: 0.5rem 1rem 0.8rem;
            background: #f8f9fc;
        }
        section {
            margin-bottom: 2.5rem;
        }
        .link-list-inset {
            background: #f8f9fc;
            border-radius: 16px;
            padding: 1.2rem 1.5rem;
            margin: 1.5rem 0;
            border-left: 4px solid #0d6efd;
        }
        .link-list-inset ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 0.5rem 1.2rem;
        }
        .link-list-inset li {
            margin-bottom: 0.2rem;
        }
        .link-list-inset a {
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .link-list-inset a i {
            font-size: 0.8rem;
            color: #0d6efd;
        }
        .search-box {
            background: #f0f3f8;
            border-radius: 60px;
            padding: 0.3rem 0.3rem 0.3rem 1.5rem;
            display: flex;
            align-items: center;
            max-width: 500px;
            margin: 1.2rem 0 1.8rem;
            border: 1px solid #dee2e9;
            transition: box-shadow 0.2s;
        }
        .search-box:focus-within {
            box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.15);
            border-color: #0d6efd;
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 0.7rem 0;
            flex: 1;
            font-size: 1rem;
            outline: none;
            color: #1a1a2e;
        }
        .search-box button {
            background: #0d6efd;
            border: none;
            color: #fff;
            padding: 0.6rem 1.4rem;
            border-radius: 60px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-box button:hover {
            background: #0a58ca;
        }
        .feedback-section {
            background: #f8f9fc;
            border-radius: 20px;
            padding: 1.8rem 2rem;
            margin: 2.5rem 0 1.5rem;
            border: 1px solid #e9edf4;
        }
        .feedback-section h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            font-size: 0.95rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #d0d6e0;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            background: #fff;
            transition: border 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #0d6efd;
            outline: none;
            box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.1);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-row {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .form-row .form-group {
            flex: 1;
            min-width: 140px;
        }
        .btn-primary {
            background: #0d6efd;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 60px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-primary:hover {
            background: #0a58ca;
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #d0d6e0;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label i {
            pointer-events: none;
        }
        .star-rating input:checked~label,
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #ffb800;
        }
        .rating-value {
            margin-left: 0.8rem;
            font-size: 0.95rem;
            color: #6c757d;
            align-self: center;
        }
        .site-footer {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #e9edf4;
            font-size: 0.9rem;
            color: #6c757d;
        }
        .site-footer .footer-flex {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
        }
        .site-footer .footer-col {
            flex: 1;
            min-width: 160px;
        }
        .site-footer h4 {
            margin-top: 0;
            font-size: 1.1rem;
            color: #1a1a2e;
        }
        friend-link {
            display: block;
            background: #f0f3f8;
            padding: 1rem 1.5rem;
            border-radius: 16px;
            margin: 1.2rem 0 1.5rem;
            font-style: normal;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.5rem;
            margin-bottom: 0.4rem;
            font-weight: 500;
        }
        .copyright {
            text-align: center;
            padding: 1.2rem 0 0.5rem;
            font-size: 0.85rem;
            border-top: 1px solid #e9edf4;
            margin-top: 1.5rem;
        }
        .copyright i {
            margin: 0 0.3rem;
        }
        @media (max-width: 768px) {
            .container {
                padding: 1rem 1.2rem;
                border-radius: 12px;
                margin-top: 0.8rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .site-header {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                margin-top: 0.5rem;
            }
            .nav-toggle:checked~.main-nav {
                display: flex;
            }
            .search-box {
                max-width: 100%;
                flex-wrap: wrap;
                border-radius: 20px;
                padding: 0.3rem;
            }
            .search-box input {
                padding: 0.5rem 0.8rem;
                min-width: 120px;
            }
            .search-box button {
                padding: 0.5rem 1rem;
                font-size: 0.85rem;
            }
            .link-list-inset ul {
                grid-template-columns: 1fr;
            }
            .feedback-section {
                padding: 1.2rem 1.2rem;
            }
            .form-row {
                flex-direction: column;
                gap: 0;
            }
            .hero-img img {
                max-height: 220px;
            }
            .site-footer .footer-flex {
                flex-direction: column;
                gap: 1.2rem;
            }
            friend-link a {
                display: block;
                margin-right: 0;
                margin-bottom: 0.6rem;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 0.5rem;
            }
            .container {
                padding: 0.8rem 0.8rem;
            }
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.3rem;
                padding-left: 0.6rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .star-rating label {
                font-size: 1.5rem;
            }
        }
        .emoji-big {
            font-size: 1.8rem;
            line-height: 1;
        }
        .text-muted {
            color: #6c757d;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .flex {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-wrap: wrap;
        }
        .gap-1 {
            gap: 1rem;
        }
        .img-hover {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .img-hover:hover {
            transform: scale(1.01);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
        }
        .inline-link {
            font-weight: 600;
            border-bottom: 1px dotted #0d6efd;
        }
        .inline-link:hover {
            border-bottom-style: solid;
            text-decoration: none;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2rem 0;
            font-size: 0.95rem;
        }
        .data-table th,
        .data-table td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e9edf4;
        }
        .data-table th {
            background: #f0f3f8;
            font-weight: 700;
            color: #0b1a2e;
        }
        .data-table tr:hover td {
            background: #f8f9fc;
        }
        blockquote {
            background: #f0f3f8;
            border-left: 4px solid #0d6efd;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #2d3a4a;
        }
        blockquote cite {
            display: block;
            margin-top: 0.5rem;
            font-style: normal;
            font-weight: 600;
            color: #0b1a2e;
        }
        .checklist {
            list-style: none;
            padding: 0;
        }
        .checklist li {
            padding-left: 1.8rem;
            position: relative;
            margin-bottom: 0.6rem;
        }
        .checklist li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: #0d6efd;
            font-weight: 700;
        }
        .form-feedback {
            display: none;
            padding: 0.6rem 1rem;
            border-radius: 12px;
            margin-top: 0.8rem;
            font-weight: 500;
        }
        .form-feedback.success {
            display: block;
            background: #d1e7dd;
            color: #0f5132;
            border: 1px solid #badbcc;
        }
        .form-feedback.error {
            display: block;
            background: #f8d7da;
            color: #842029;
            border: 1px solid #f5c2c7;
        }