*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
            line-height: 1.7;
            background: #f8fafc;
            color: #1e293b;
            padding: 0 1.2rem;
            max-width: 1300px;
            margin: 0 auto;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #1d4ed8;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.6rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            color: #0f172a;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
            font-weight: 700;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 4px solid #2563eb;
            padding-bottom: 0.5rem;
            display: inline-block;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 6px solid #2563eb;
            padding-left: 1rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #1e293b;
            margin-top: 2.2rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #334155;
            margin-top: 1.6rem;
            font-weight: 600;
        }
        p {
            margin: 1rem 0;
            font-size: 1.05rem;
            color: #1e293b;
        }
        strong {
            color: #0f172a;
            font-weight: 700;
        }
        .container {
            background: #ffffff;
            border-radius: 20px;
            padding: 2rem 2.5rem;
            margin: 1.5rem 0;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 0;
            border-bottom: 2px solid #e2e8f0;
            margin-bottom: 0.8rem;
            background: #ffffff;
            border-radius: 0 0 16px 16px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.02);
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, #2563eb, #7c3aed);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            font-size: 2rem;
            -webkit-text-fill-color: #2563eb;
            color: #2563eb;
        }
        .my-logo a {
            background: none;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }
        .my-logo a:hover {
            text-decoration: none;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 1.2rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 1.8rem;
            margin: 0;
            padding: 0;
        }
        .nav-list li a {
            font-weight: 600;
            color: #1e293b;
            padding: 0.4rem 0.2rem;
            border-bottom: 3px solid transparent;
            transition: all 0.2s;
        }
        .nav-list li a:hover {
            border-bottom-color: #2563eb;
            color: #2563eb;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #1e293b;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #f1f5f9;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0.8rem 0;
            margin: 0 0 0.8rem 0;
            font-size: 0.95rem;
            color: #64748b;
            background: transparent;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.6rem;
            color: #94a3b8;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #2563eb;
        }
        .breadcrumb .current {
            color: #1e293b;
            font-weight: 600;
        }
        .search-section {
            background: #f1f5f9;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2rem 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1.2rem;
        }
        .search-section label {
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: #0f172a;
        }
        .search-form {
            display: flex;
            flex: 1;
            min-width: 220px;
            gap: 0.6rem;
        }
        .search-form input {
            flex: 1;
            padding: 0.8rem 1.2rem;
            border: 2px solid #e2e8f0;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
            background: #ffffff;
        }
        .search-form input:focus {
            border-color: #2563eb;
        }
        .search-form button {
            background: #2563eb;
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 0.8rem 1.6rem;
            font-weight: 700;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #1d4ed8;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.5rem 0;
        }
        .feedback-card {
            background: #f8fafc;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            border: 1px solid #e2e8f0;
        }
        .feedback-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.3rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 0.8rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            outline: none;
            transition: border 0.2s;
            background: #ffffff;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #2563eb;
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card button {
            background: #2563eb;
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 0.8rem 1.8rem;
            font-weight: 700;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            align-self: flex-start;
        }
        .feedback-card button:hover {
            background: #1d4ed8;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #fbbf24;
            cursor: pointer;
        }
        .star-rating i {
            transition: transform 0.15s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        footer {
            border-top: 2px solid #e2e8f0;
            padding: 2rem 0 1.5rem;
            margin-top: 3rem;
            text-align: center;
        }
        footer p {
            font-size: 0.95rem;
            color: #64748b;
        }
        friend-link {
            display: block;
            margin: 1.2rem 0;
            font-size: 1rem;
            color: #334155;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 1rem 0.3rem 0;
            color: #2563eb;
            font-weight: 500;
        }
        @media (max-width: 900px) {
            body {
                padding: 0 0.8rem;
            }
            .container {
                padding: 1.5rem 1.2rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                background: #ffffff;
                position: absolute;
                top: 100%;
                right: 0;
                left: 0;
                padding: 1.2rem 1.5rem;
                border-radius: 0 0 16px 16px;
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
                gap: 0.8rem;
                z-index: 100;
            }
            .nav-list.open {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .nav-wrapper {
                position: relative;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .search-section {
                flex-direction: column;
                align-items: stretch;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                align-self: center;
                width: 100%;
                justify-content: center;
            }
            header {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .breadcrumb {
                font-size: 0.85rem;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.5rem;
            }
            .container {
                padding: 1rem 0.8rem;
            }
            .feedback-card {
                padding: 1.2rem;
            }
        }
        .badge {
            display: inline-block;
            background: #2563eb10;
            color: #2563eb;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.85rem;
        }
        .divider {
            border: 0;
            height: 2px;
            background: linear-gradient(to right, transparent, #e2e8f0, transparent);
            margin: 2.5rem 0;
        }
        .emoji-big {
            font-size: 2rem;
        }
        .last-updated {
            display: inline-block;
            background: #f1f5f9;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.9rem;
            color: #475569;
            margin: 0.5rem 0 1.5rem 0;
        }
        .hero-img {
            border-radius: 16px;
            margin: 1.8rem 0;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
        }
        .highlight-box {
            background: #eff6ff;
            border-left: 6px solid #2563eb;
            padding: 1.5rem 2rem;
            border-radius: 0 12px 12px 0;
            margin: 1.8rem 0;
        }
        .highlight-box p {
            margin: 0.4rem 0;
        }
        .two-col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 1.5rem 0;
        }
        @media (max-width: 700px) {
            .two-col {
                grid-template-columns: 1fr;
            }
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #f8fafc;
            border-radius: 12px;
            overflow: hidden;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.9rem 1.2rem;
            text-align: left;
            border-bottom: 1px solid #e2e8f0;
        }
        th {
            background: #1e293b;
            color: #ffffff;
            font-weight: 700;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f1f5f9;
        }