* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, Helvetica, Arial, sans-serif;
            background: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            padding: 0 16px;
        }
        .wrapper {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.04);
            padding: 24px 28px;
            border-radius: 32px;
            margin-top: 20px;
            margin-bottom: 20px;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 12px;
            border-bottom: 2px solid #eef2f6;
            position: relative;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            text-decoration: none;
            color: #0f172a;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            color: #f97316;
            font-size: 2.2rem;
        }
        .my-logo span {
            background: linear-gradient(135deg, #f97316, #ef4444);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #0f172a;
            cursor: pointer;
            padding: 4px 12px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: #f1f5f9;
        }
        .navbar {
            display: flex;
            gap: 8px 20px;
            flex-wrap: wrap;
            align-items: center;
        }
        .navbar a {
            text-decoration: none;
            color: #334155;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 10px;
            border-radius: 8px;
            transition: all 0.2s;
        }
        .navbar a:hover,
        .navbar a:focus-visible {
            background: #f97316;
            color: #fff;
            outline: none;
        }
        .navbar a i {
            margin-right: 6px;
            font-size: 0.9rem;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px 10px;
            padding: 14px 0 6px;
            font-size: 0.85rem;
            color: #64748b;
        }
        .breadcrumb a {
            color: #f97316;
            text-decoration: none;
            font-weight: 500;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb i {
            font-size: 0.7rem;
            color: #94a3b8;
        }
        .breadcrumb .current {
            color: #1e293b;
            font-weight: 600;
        }
        main h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 28px 0 16px;
            color: #0f172a;
            letter-spacing: -0.02em;
        }
        main h1 i {
            color: #f97316;
            margin-right: 12px;
        }
        .last-updated {
            display: inline-block;
            background: #f1f5f9;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #475569;
            margin-bottom: 28px;
            font-weight: 500;
        }
        .last-updated i {
            margin-right: 6px;
            color: #f97316;
        }
        .hero-image {
            width: 100%;
            border-radius: 24px;
            margin: 20px 0 32px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            display: block;
            max-height: 480px;
            object-fit: cover;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 48px 0 16px;
            color: #0f172a;
            border-left: 6px solid #f97316;
            padding-left: 18px;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 36px 0 12px;
            color: #1e293b;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 24px 0 8px;
            color: #334155;
        }
        p {
            margin-bottom: 18px;
            font-size: 1.05rem;
            color: #1e293b;
        }
        .content-card {
            background: #f8fafc;
            border-radius: 20px;
            padding: 24px 28px;
            margin: 28px 0;
            border-left: 4px solid #f97316;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 28px 0;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
            margin: 28px 0;
        }
        .stat-box {
            background: #ffffff;
            border-radius: 16px;
            padding: 20px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef2f6;
            transition: transform 0.2s;
        }
        .stat-box:hover {
            transform: translateY(-4px);
        }
        .stat-box i {
            font-size: 2rem;
            color: #f97316;
            margin-bottom: 8px;
            display: block;
        }
        .stat-box h4 {
            margin: 4px 0 6px;
        }
        blockquote {
            background: #fff7ed;
            border-left: 6px solid #f97316;
            padding: 20px 24px;
            border-radius: 16px;
            margin: 28px 0;
            font-style: italic;
            font-size: 1.1rem;
            color: #1e293b;
        }
        blockquote cite {
            display: block;
            margin-top: 12px;
            font-weight: 600;
            color: #f97316;
            font-style: normal;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 28px 0;
            border-radius: 16px;
            border: 1px solid #eef2f6;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th {
            background: #0f172a;
            color: #fff;
            padding: 14px 18px;
            text-align: left;
            font-weight: 600;
        }
        td {
            padding: 12px 18px;
            border-bottom: 1px solid #eef2f6;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f8fafc;
        }
        .btn {
            display: inline-block;
            background: #f97316;
            color: #fff;
            padding: 10px 24px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            transition: background 0.2s, transform 0.1s;
            border: none;
            cursor: pointer;
            font-size: 0.95rem;
        }
        .btn:hover {
            background: #ea580c;
            transform: scale(1.02);
        }
        .btn i {
            margin-right: 8px;
        }
        .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            padding: 12px 0 8px;
        }
        .link-list a {
            color: #f97316;
            text-decoration: none;
            font-weight: 500;
            border-bottom: 1px solid transparent;
            transition: border-color 0.2s;
        }
        .link-list a:hover {
            border-bottom-color: #f97316;
        }
        .search-section {
            background: #f1f5f9;
            border-radius: 24px;
            padding: 32px 28px;
            margin: 48px 0 32px;
        }
        .search-section h2 i {
            color: #f97316;
        }
        .search-form {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 16px;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border: 2px solid #e2e8f0;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.2s;
        }
        .search-form input[type="text"]:focus {
            border-color: #f97316;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 40px 0;
        }
        .feedback-card {
            background: #f8fafc;
            border-radius: 24px;
            padding: 28px;
            border: 1px solid #eef2f6;
        }
        .feedback-card h3 i {
            color: #f97316;
            margin-right: 10px;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 16px;
        }
        .feedback-card input,
        .feedback-card textarea {
            padding: 12px 16px;
            border: 2px solid #e2e8f0;
            border-radius: 14px;
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.2s;
            font-family: inherit;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus {
            border-color: #f97316;
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            font-size: 1.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #cbd5e1;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f97316;
        }
        .site-footer {
            border-top: 2px solid #eef2f6;
            padding: 32px 0 20px;
            margin-top: 48px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        .footer-grid h4 {
            font-size: 1.1rem;
            color: #0f172a;
            margin-bottom: 12px;
        }
        .footer-grid a {
            color: #475569;
            text-decoration: none;
            display: block;
            padding: 4px 0;
            font-size: 0.95rem;
            transition: color 0.2s;
        }
        .footer-grid a:hover {
            color: #f97316;
        }
        friend-link {
            display: block;
            background: #f1f5f9;
            padding: 20px 24px;
            border-radius: 16px;
            margin: 20px 0 12px;
            font-weight: 500;
        }
        friend-link a {
            color: #f97316;
            text-decoration: none;
            margin: 0 12px 0 4px;
            font-weight: 600;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding: 20px 0 4px;
            color: #64748b;
            font-size: 0.9rem;
            border-top: 1px solid #eef2f6;
            margin-top: 20px;
        }
        .copyright i {
            color: #f97316;
        }
        @media (max-width: 900px) {
            .wrapper {
                padding: 16px 18px;
                margin-top: 12px;
                border-radius: 24px;
            }
            main h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .grid-2,
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .my-logo {
                font-size: 1.6rem;
            }
            .navbar {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 0 8px;
                gap: 6px;
            }
            .navbar.open {
                display: flex;
            }
            .navbar a {
                width: 100%;
                padding: 10px 12px;
                border-radius: 8px;
            }
            .nav-toggle {
                display: block;
            }
            .hero-image {
                max-height: 240px;
            }
            .search-form input[type="text"] {
                min-width: 140px;
            }
        }
        @media (max-width: 480px) {
            .wrapper {
                padding: 12px 14px;
            }
            main h1 {
                font-size: 1.6rem;
            }
            .stat-box {
                padding: 14px;
            }
            .feedback-card {
                padding: 18px;
            }
            .content-card {
                padding: 16px 18px;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid #f97316;
            outline-offset: 2px;
        }
        ::selection {
            background: #f97316;
            color: #fff;
        }