*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            padding: 0 1rem;
            max-width: 1280px;
            margin: 0 auto;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.25;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
            color: #0f172a;
        }
        h1 {
            font-size: 2.4rem;
            border-left: 6px solid #eab308;
            padding-left: 1.2rem;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 2px solid #e2e8f0;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #1e293b;
        }
        h4 {
            font-size: 1.1rem;
            color: #334155;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        strong,
        b {
            color: #0f172a;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #eab308;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
            margin: 1.8rem auto;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        }
        ul,
        ol {
            margin: 0.8rem 0 1.5rem 1.8rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        hr {
            border: 0;
            height: 1px;
            background: #e2e8f0;
            margin: 2.5rem 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.2rem;
        }
        header {
            padding: 1.5rem 0 0.8rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid #e2e8f0;
            position: relative;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #eab308, #dc2626);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #dc2626;
            font-size: 1.6rem;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.9;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 1.2rem;
        }
        .nav-links {
            display: flex;
            gap: 1.2rem;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .nav-links li a {
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.4rem 0.2rem;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s;
        }
        .nav-links li a:hover {
            border-bottom-color: #eab308;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            cursor: pointer;
            color: #0f172a;
            padding: 0.2rem 0.4rem;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            padding: 0.8rem 0 0.2rem;
            font-size: 0.9rem;
            color: #64748b;
            list-style: none;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.5rem;
            color: #94a3b8;
        }
        .breadcrumb a {
            color: #475569;
        }
        .breadcrumb a:hover {
            color: #eab308;
        }
        .breadcrumb .current {
            color: #0f172a;
            font-weight: 600;
        }
        .search-section {
            background: #ffffff;
            border: 1px solid #e2e8f0;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
        }
        .search-form {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 0.9rem 1.2rem;
            border: 1px solid #cbd5e1;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s, box-shadow 0.2s;
        }
        .search-form input[type="text"]:focus {
            border-color: #eab308;
            box-shadow: 0 0 0 3px rgba(234, 179, 8, 0.15);
        }
        .search-form button {
            background: #eab308;
            border: none;
            border-radius: 40px;
            padding: 0.9rem 2rem;
            font-weight: 700;
            font-size: 1rem;
            color: #0f172a;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #d9a406;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.5rem 0;
        }
        .comment-box,
        .rating-box {
            background: #ffffff;
            border: 1px solid #e2e8f0;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
        }
        .comment-box h3,
        .rating-box h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .comment-box textarea {
            width: 100%;
            min-height: 100px;
            padding: 1rem;
            border: 1px solid #cbd5e1;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            resize: vertical;
            outline: none;
            transition: border 0.2s;
        }
        .comment-box textarea:focus {
            border-color: #eab308;
        }
        .comment-box input[type="text"] {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #cbd5e1;
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
            margin: 0.5rem 0 0.8rem;
        }
        .comment-box input[type="text"]:focus {
            border-color: #eab308;
        }
        .btn-submit {
            background: #0f172a;
            color: #f8fafc;
            border: none;
            border-radius: 40px;
            padding: 0.7rem 2rem;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-submit:hover {
            background: #1e293b;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.3rem;
            margin: 1rem 0 1.2rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #cbd5e1;
            cursor: pointer;
            transition: color 0.15s;
        }
        .star-rating input:checked~label,
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #eab308;
        }
        friend-link {
            display: block;
            padding: 1.5rem 0 0.5rem;
            margin-top: 2rem;
            border-top: 1px solid #e2e8f0;
        }
        friend-link .friend-title {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
            color: #0f172a;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 1.2rem 0.4rem 0;
            padding: 0.2rem 0;
            font-size: 0.95rem;
        }
        footer {
            padding: 2rem 0 1.5rem;
            text-align: center;
            font-size: 0.9rem;
            color: #64748b;
            border-top: 1px solid #e2e8f0;
            margin-top: 1.5rem;
        }
        footer .copyright {
            font-weight: 500;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 0.8rem;
            }
            h1 {
                font-size: 1.7rem;
                padding-left: 0.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .hamburger {
                display: block;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #ffffff;
                padding: 1rem 0;
                border-top: 1px solid #e2e8f0;
                margin-top: 0.8rem;
                gap: 0.6rem;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                font-size: 1.1rem;
                padding: 0.5rem 0;
                display: block;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
            .my-logo {
                font-size: 1.6rem;
            }
            header {
                padding: 1rem 0 0.4rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .comment-box,
            .rating-box,
            .search-section {
                padding: 1.2rem 1.2rem;
            }
        }
        @media (min-width: 769px) {
            .nav-links {
                display: flex !important;
            }
        }
        .last-updated {
            font-size: 0.85rem;
            color: #64748b;
            background: #f1f5f9;
            display: inline-block;
            padding: 0.2rem 1rem;
            border-radius: 40px;
            margin-bottom: 1.5rem;
        }
        .feature-card {
            background: #ffffff;
            border-radius: 16px;
            padding: 1.5rem 1.8rem;
            border: 1px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
            margin: 1.5rem 0;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .feature-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.06);
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 1.5rem 0;
        }
        @media (max-width: 640px) {
            .grid-2 {
                grid-template-columns: 1fr;
            }
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.8rem 1rem;
            border-bottom: 1px solid #e2e8f0;
            text-align: left;
        }
        th {
            background: #f1f5f9;
            font-weight: 700;
            color: #0f172a;
        }
        tr:hover td {
            background: #f8fafc;
        }
        blockquote {
            border-left: 4px solid #eab308;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            background: #fefce8;
            border-radius: 0 12px 12px 0;
            font-style: italic;
        }
        .highlight {
            background: #fef9c3;
            padding: 0.1rem 0.3rem;
            border-radius: 4px;
        }