* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f4f7fc;
            color: #1a2634;
            line-height: 1.8;
            padding: 0 16px;
        }
        .wrapper {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
            border-radius: 24px;
            padding: 20px 28px 32px;
            margin-top: 20px;
            margin-bottom: 40px;
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 18px;
            border-bottom: 2px solid #e9edf2;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #e67e22;
            text-decoration: none;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            color: #2c3e50;
            font-size: 2.1rem;
        }
        .my-logo span {
            color: #2c3e50;
        }
        .hamburger {
            display: none;
            font-size: 2rem;
            background: none;
            border: none;
            color: #2c3e50;
            cursor: pointer;
            padding: 4px 10px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #eef2f7;
        }
        nav {
            display: flex;
            gap: 24px;
            align-items: center;
            flex-wrap: wrap;
        }
        nav a {
            text-decoration: none;
            color: #2c3e50;
            font-weight: 600;
            font-size: 1rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.25s, color 0.25s;
        }
        nav a:hover,
        nav a.active {
            border-bottom-color: #e67e22;
            color: #e67e22;
        }
        .breadcrumb {
            width: 100%;
            margin-top: 12px;
            font-size: 0.9rem;
            color: #5a6a7a;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
        }
        .breadcrumb a {
            color: #2c3e50;
            text-decoration: none;
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: #e67e22;
        }
        .breadcrumb span {
            color: #8a9aa8;
        }
        main {
            padding: 28px 0 20px;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #1a2634;
            margin-bottom: 12px;
            line-height: 1.2;
        }
        h1 i {
            color: #e67e22;
            margin-right: 12px;
        }
        .last-updated {
            display: inline-block;
            background: #eef2f7;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #4a5a6a;
            margin-bottom: 24px;
        }
        .last-updated i {
            margin-right: 6px;
            color: #e67e22;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #1a2634;
            margin-top: 48px;
            margin-bottom: 16px;
            padding-bottom: 6px;
            border-bottom: 3px solid #e67e22;
            display: inline-block;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #2c3e50;
            margin-top: 32px;
            margin-bottom: 12px;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #3a4a5a;
            margin-top: 24px;
            margin-bottom: 8px;
        }
        p {
            margin-bottom: 18px;
            font-size: 1.05rem;
            color: #2a3a4a;
        }
        .content-img {
            width: 100%;
            max-width: 800px;
            border-radius: 18px;
            margin: 28px auto;
            display: block;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease;
        }
        .content-img:hover {
            transform: scale(1.01);
        }
        .highlight-box {
            background: #fef9ef;
            border-left: 6px solid #e67e22;
            padding: 20px 24px;
            border-radius: 12px;
            margin: 28px 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .btn {
            display: inline-block;
            background: #e67e22;
            color: #fff;
            padding: 10px 28px;
            border-radius: 40px;
            font-weight: 600;
            text-decoration: none;
            transition: background 0.3s, transform 0.2s;
            border: none;
            cursor: pointer;
            font-size: 1rem;
        }
        .btn:hover {
            background: #cf6d17;
            transform: translateY(-2px);
        }
        .btn i {
            margin-right: 8px;
        }
        .search-section {
            background: #f0f4fa;
            padding: 24px 28px;
            border-radius: 20px;
            margin: 40px 0 32px;
        }
        .search-section h3 {
            margin-top: 0;
        }
        .search-form {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border: 2px solid #dce3ec;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
        }
        .search-form input[type="text"]:focus {
            border-color: #e67e22;
        }
        .search-form button {
            background: #2c3e50;
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
            font-size: 1rem;
        }
        .search-form button:hover {
            background: #1a2a3a;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 40px 0 32px;
        }
        .comment-section,
        .rating-section {
            background: #f8faff;
            padding: 24px 28px;
            border-radius: 20px;
            border: 1px solid #e4eaf2;
        }
        .comment-section h3,
        .rating-section h3 {
            margin-top: 0;
        }
        .comment-section form,
        .rating-section form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .comment-section textarea,
        .rating-section input[type="number"],
        .rating-section input[type="text"] {
            padding: 12px 16px;
            border: 2px solid #dce3ec;
            border-radius: 12px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
            font-family: inherit;
        }
        .comment-section textarea:focus,
        .rating-section input:focus {
            border-color: #e67e22;
        }
        .comment-section textarea {
            min-height: 100px;
            resize: vertical;
        }
        .rating-section .star-display {
            display: flex;
            gap: 6px;
            font-size: 2rem;
            color: #f1c40f;
        }
        .rating-section .star-display i {
            cursor: pointer;
            transition: transform 0.2s;
        }
        .rating-section .star-display i:hover {
            transform: scale(1.2);
        }
        .rating-section input[type="number"] {
            width: 80px;
        }
        .related-links {
            margin: 36px 0 28px;
            padding: 20px 24px;
            background: #f4f8fe;
            border-radius: 18px;
        }
        .related-links h3 {
            margin-top: 0;
        }
        .related-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 10px 20px;
        }
        .related-links li a {
            color: #2c3e50;
            text-decoration: none;
            font-weight: 500;
            padding: 6px 0;
            display: inline-block;
            transition: color 0.2s;
        }
        .related-links li a:hover {
            color: #e67e22;
        }
        .related-links li a i {
            margin-right: 8px;
            color: #e67e22;
            font-size: 0.85rem;
        }
        footer {
            margin-top: 48px;
            padding-top: 28px;
            border-top: 2px solid #e9edf2;
        }
        .friend-link {
            display: block;
            background: #f0f4fa;
            padding: 18px 24px;
            border-radius: 16px;
            margin-bottom: 20px;
            font-size: 0.95rem;
        }
        .friend-link a {
            color: #2c3e50;
            text-decoration: none;
            font-weight: 500;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .friend-link a:hover {
            background: #e0e8f2;
            color: #e67e22;
        }
        .friend-link i {
            color: #e67e22;
            margin-right: 6px;
        }
        .copyright {
            text-align: center;
            padding: 16px 0 8px;
            font-size: 0.9rem;
            color: #5a6a7a;
        }
        .copyright i {
            color: #e67e22;
        }
        @media (max-width: 768px) {
            .wrapper {
                padding: 16px;
                margin-top: 12px;
                border-radius: 16px;
            }
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 12px;
                padding: 16px 0 8px;
                border-top: 1px solid #e4eaf2;
                margin-top: 12px;
            }
            nav.open {
                display: flex;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            h4 {
                font-size: 1.05rem;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .related-links ul {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input[type="text"] {
                min-width: unset;
                width: 100%;
            }
            .search-form button {
                width: 100%;
            }
            .my-logo {
                font-size: 1.5rem;
            }
        }
        @media (min-width: 769px) {
            nav {
                display: flex !important;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        a,
        button,
        input,
        textarea {
            transition: all 0.2s ease;
        }
        ::selection {
            background: #e67e22;
            color: #fff;
        }