* {
            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;
            line-height: 1.7;
            background: #f8f9fa;
            color: #1e2a3a;
            padding: 0 16px;
        }
        a {
            color: #c0392b;
            text-decoration: none;
            transition: color 0.2s;
        }
        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: #ffffff;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            border-radius: 20px;
            padding: 24px 32px;
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 12px;
            border-bottom: 2px solid #eaeef2;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #c0392b;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .my-logo small {
            font-size: 0.9rem;
            font-weight: 400;
            color: #5a6a7a;
            display: block;
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
        }
        .my-logo a:hover {
            color: #a93226;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #c0392b;
            color: #c0392b;
            font-size: 1.5rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: #c0392b;
            color: #fff;
        }
        nav {
            display: flex;
            gap: 8px 20px;
            flex-wrap: wrap;
            align-items: center;
        }
        nav a {
            font-weight: 500;
            padding: 6px 4px;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
            color: #1e2a3a;
        }
        nav a:hover {
            border-bottom-color: #c0392b;
            color: #c0392b;
            text-decoration: none;
        }
        .breadcrumb {
            width: 100%;
            margin-top: 10px;
            font-size: 0.85rem;
            color: #6c7a89;
            background: #f1f4f7;
            padding: 10px 18px;
            border-radius: 30px;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
        }
        .breadcrumb a {
            color: #2c3e50;
        }
        .breadcrumb a:hover {
            color: #c0392b;
        }
        .breadcrumb span {
            color: #8e9aaf;
        }
        main {
            padding: 28px 0 20px;
        }
        h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            color: #0f1a2c;
            margin-bottom: 12px;
        }
        h1 i {
            color: #c0392b;
            margin-right: 12px;
        }
        .last-updated {
            color: #6c7a89;
            font-size: 0.9rem;
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 8px;
            background: #f1f4f7;
            padding: 8px 18px;
            border-radius: 30px;
            width: fit-content;
        }
        .last-updated i {
            color: #c0392b;
        }
        h2 {
            font-size: 1.7rem;
            font-weight: 700;
            margin: 40px 0 16px;
            color: #0f1a2c;
            border-left: 5px solid #c0392b;
            padding-left: 18px;
        }
        h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin: 28px 0 12px;
            color: #1e2a3a;
        }
        h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin: 20px 0 8px;
            color: #2c3e50;
        }
        p {
            margin-bottom: 18px;
            color: #2c3e50;
        }
        .intro-highlight {
            background: #fef9f0;
            padding: 24px 28px;
            border-radius: 16px;
            border-left: 6px solid #c0392b;
            font-size: 1.05rem;
            margin-bottom: 32px;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
            margin: 28px 0;
        }
        .card-item {
            background: #f8fafc;
            border-radius: 16px;
            padding: 22px 20px;
            transition: transform 0.2s, box-shadow 0.2s;
            border: 1px solid #eaeef2;
        }
        .card-item:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.06);
        }
        .card-item i {
            color: #c0392b;
            font-size: 1.8rem;
            margin-bottom: 10px;
        }
        .card-item h4 {
            margin-top: 0;
        }
        .feature-img {
            margin: 32px 0 28px;
            border-radius: 16px;
            overflow: hidden;
            background: #eef2f6;
            padding: 8px;
        }
        .feature-img img {
            width: 100%;
            border-radius: 12px;
        }
        .feature-img figcaption {
            padding: 12px 8px 4px;
            font-size: 0.9rem;
            color: #5a6a7a;
            text-align: center;
            font-style: italic;
        }
        .btn {
            display: inline-block;
            background: #c0392b;
            color: #fff;
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 600;
            transition: 0.2s;
            border: none;
            cursor: pointer;
            font-size: 1rem;
        }
        .btn:hover {
            background: #a93226;
            transform: scale(1.02);
            text-decoration: none;
            color: #fff;
        }
        .btn i {
            margin-right: 8px;
        }
        .list-styled {
            list-style: none;
            padding: 0;
        }
        .list-styled li {
            padding: 10px 0 10px 28px;
            position: relative;
            border-bottom: 1px solid #eaeef2;
        }
        .list-styled li::before {
            content: "🃏";
            position: absolute;
            left: 0;
            top: 10px;
            font-size: 1.1rem;
        }
        .list-styled li strong {
            color: #c0392b;
        }
        .blockquote-custom {
            background: #f1f4f7;
            border-left: 6px solid #c0392b;
            padding: 20px 28px;
            border-radius: 0 16px 16px 0;
            margin: 28px 0;
            font-style: italic;
            color: #2c3e50;
        }
        .blockquote-custom cite {
            display: block;
            margin-top: 10px;
            font-style: normal;
            font-weight: 600;
            color: #c0392b;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 28px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #f8fafc;
            border-radius: 12px;
            overflow: hidden;
        }
        th,
        td {
            padding: 14px 18px;
            text-align: left;
            border-bottom: 1px solid #eaeef2;
        }
        th {
            background: #c0392b;
            color: #fff;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        .search-section {
            background: #f1f4f7;
            padding: 28px 24px;
            border-radius: 16px;
            margin: 36px 0 28px;
        }
        .search-section h3 {
            margin-top: 0;
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border: 2px solid #dce2e8;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: 0.2s;
        }
        .search-form input:focus {
            border-color: #c0392b;
            box-shadow: 0 0 0 4px rgba(192, 57, 43, 0.1);
        }
        .search-form button {
            background: #c0392b;
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            font-size: 1rem;
        }
        .search-form button:hover {
            background: #a93226;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 36px 0 20px;
        }
        @media (max-width:680px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .comment-section,
        .score-section {
            background: #f8fafc;
            padding: 24px 22px;
            border-radius: 16px;
            border: 1px solid #eaeef2;
        }
        .comment-section h3,
        .score-section h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-weight: 500;
            margin-bottom: 4px;
            color: #1e2a3a;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #dce2e8;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            outline: none;
            transition: 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #c0392b;
            box-shadow: 0 0 0 4px rgba(192, 57, 43, 0.08);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #dce2e8;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            transition: 0.2s;
            color: #dce2e8;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f1c40f;
        }
        .btn-submit {
            background: #c0392b;
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            font-size: 1rem;
        }
        .btn-submit:hover {
            background: #a93226;
        }
        friend-link {
            display: block;
            padding: 20px 0 10px;
            border-top: 2px solid #eaeef2;
            margin-top: 32px;
        }
        friend-link a {
            display: inline-block;
            margin: 0 16px 8px 0;
            color: #2c3e50;
            font-weight: 500;
        }
        friend-link a:hover {
            color: #c0392b;
        }
        footer {
            padding: 20px 0 10px;
            border-top: 2px solid #eaeef2;
            margin-top: 16px;
            text-align: center;
            color: #6c7a89;
            font-size: 0.9rem;
        }
        footer a {
            color: #2c3e50;
        }
        footer a:hover {
            color: #c0392b;
        }
        @media (max-width:768px) {
            .container {
                padding: 16px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
                padding-left: 12px;
            }
            h3 {
                font-size: 1.1rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .nav-toggle {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 0 8px;
                gap: 4px;
            }
            nav.show {
                display: flex;
            }
            nav a {
                padding: 10px 0;
                border-bottom: 1px solid #eaeef2;
                width: 100%;
            }
            .breadcrumb {
                font-size: 0.75rem;
                padding: 8px 14px;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input {
                min-width: auto;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .intro-highlight {
                padding: 18px 16px;
            }
            .blockquote-custom {
                padding: 16px 18px;
            }
        }
        @media (max-width:480px) {
            .container {
                padding: 12px;
            }
            h1 {
                font-size: 1.3rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .btn,
            .btn-submit,
            .search-form button {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
        }
        .schema-hidden {
            display: none;
        }