*,
        *::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;
            background: #f7f9fc;
            color: #1e293b;
            line-height: 1.7;
            padding: 0 16px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 14px;
        }
        a {
            color: #3b82f6;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #1d4ed8;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 0.75rem 0;
        }
        li {
            margin: 0.4rem 0;
        }
        .wrapper {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.05);
            border-radius: 28px;
            padding: 20px 30px 40px;
            margin-top: 20px;
            margin-bottom: 40px;
        }
        header {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0 16px;
            border-bottom: 2px solid #eef2f6;
            position: relative;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, #6c5ce7, #0984e3);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: #6c5ce7;
            font-size: 2rem;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.9;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: #64748b;
            display: block;
            letter-spacing: 0.3px;
        }
        nav.top-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        nav.top-nav a {
            padding: 8px 16px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.9rem;
            color: #334155;
            transition: background 0.2s, color 0.2s;
        }
        nav.top-nav a:hover {
            background: #eef2ff;
            color: #1e40af;
            text-decoration: none;
        }
        nav.top-nav a.active {
            background: #3b82f6;
            color: #fff;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            cursor: pointer;
            color: #1e293b;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #f1f5f9;
        }
        .nav-mobile {
            display: none;
            width: 100%;
            flex-direction: column;
            gap: 6px;
            padding: 16px 0 8px;
            border-top: 1px solid #eef2f6;
            margin-top: 12px;
        }
        .nav-mobile a {
            padding: 10px 16px;
            border-radius: 12px;
            font-weight: 500;
            background: #f8fafc;
            color: #1e293b;
        }
        .nav-mobile a:hover {
            background: #eef2ff;
            text-decoration: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px 12px;
            padding: 14px 0 8px;
            font-size: 0.85rem;
            color: #64748b;
        }
        .breadcrumb a {
            color: #3b82f6;
        }
        .breadcrumb i {
            font-size: 0.7rem;
            color: #94a3b8;
        }
        .breadcrumb .current {
            color: #1e293b;
            font-weight: 500;
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 1.2rem 0 0.8rem;
            background: linear-gradient(135deg, #1e293b, #3b82f6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 2.4rem 0 1rem;
            padding-bottom: 0.4rem;
            border-bottom: 3px solid #eef2f6;
            color: #0f172a;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin: 1.8rem 0 0.8rem;
            color: #1e293b;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 1.2rem 0 0.5rem;
            color: #334155;
        }
        p {
            margin: 0.8rem 0;
            color: #334155;
        }
        .lead {
            font-size: 1.2rem;
            color: #475569;
            font-weight: 400;
            line-height: 1.8;
        }
        .highlight {
            background: #fef9c3;
            padding: 0.2rem 0.4rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .last-updated {
            display: inline-block;
            background: #f1f5f9;
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: #475569;
            margin: 8px 0 12px;
        }
        .last-updated i {
            margin-right: 6px;
            color: #3b82f6;
        }
        .hero-img {
            margin: 1.8rem 0 2.4rem;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
            background: #eef2f6;
            aspect-ratio: 1200/630;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }
        .hero-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-img .img-placeholder {
            width: 100%;
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #64748b;
            background: linear-gradient(145deg, #dbeafe, #ede9fe);
            padding: 40px 20px;
            text-align: center;
        }
        .hero-img .img-placeholder i {
            font-size: 4rem;
            color: #3b82f6;
            margin-bottom: 16px;
        }
        .hero-img .img-placeholder span {
            font-weight: 600;
            color: #1e293b;
            font-size: 1.6rem;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 1.6rem 0;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
            margin: 1.6rem 0;
        }
        .card {
            background: #f8fafc;
            border-radius: 18px;
            padding: 24px 20px;
            transition: transform 0.2s, box-shadow 0.2s;
            border: 1px solid #eef2f6;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
        }
        .card i {
            font-size: 2.2rem;
            color: #3b82f6;
            margin-bottom: 12px;
        }
        .card h4 {
            margin-top: 0;
        }
        .search-box {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 2rem 0 1.2rem;
            background: #f8fafc;
            padding: 20px 24px;
            border-radius: 20px;
            border: 1px solid #e2e8f0;
        }
        .search-box input {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border: 1px solid #d1d5db;
            border-radius: 50px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s, box-shadow 0.2s;
            background: #fff;
        }
        .search-box input:focus {
            border-color: #3b82f6;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
        }
        .search-box button {
            padding: 14px 32px;
            border: none;
            border-radius: 50px;
            background: #3b82f6;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-box button:hover {
            background: #2563eb;
            transform: scale(1.02);
        }
        .search-box button i {
            font-size: 1rem;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 2.4rem 0 1.6rem;
        }
        .feedback-card {
            background: #f8fafc;
            border-radius: 20px;
            padding: 24px 26px;
            border: 1px solid #e2e8f0;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feedback-card textarea,
        .feedback-card input[type="text"],
        .feedback-card input[type="number"] {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #d1d5db;
            border-radius: 12px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
            background: #fff;
            margin: 6px 0 10px;
            font-family: inherit;
        }
        .feedback-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-card textarea:focus,
        .feedback-card input:focus {
            border-color: #3b82f6;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
        }
        .feedback-card button {
            padding: 12px 28px;
            border: none;
            border-radius: 50px;
            background: #3b82f6;
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .feedback-card button:hover {
            background: #2563eb;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #d1d5db;
            cursor: pointer;
            margin: 8px 0 12px;
        }
        .star-rating i {
            transition: color 0.15s;
        }
        .star-rating i.active,
        .star-rating i:hover {
            color: #f59e0b;
        }
        .link-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 12px;
            margin: 1.2rem 0;
        }
        .link-grid a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 18px;
            background: #f8fafc;
            border-radius: 14px;
            border: 1px solid #eef2f6;
            font-weight: 500;
            transition: background 0.2s, border-color 0.2s;
        }
        .link-grid a:hover {
            background: #eef2ff;
            border-color: #3b82f6;
            text-decoration: none;
        }
        .link-grid a i {
            color: #3b82f6;
            font-size: 1rem;
        }
        blockquote {
            border-left: 5px solid #3b82f6;
            background: #f1f5f9;
            padding: 16px 24px;
            margin: 1.6rem 0;
            border-radius: 0 16px 16px 0;
            font-style: italic;
            color: #334155;
        }
        blockquote strong {
            color: #0f172a;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.6rem 0;
            border-radius: 16px;
            border: 1px solid #e2e8f0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 14px 18px;
            text-align: left;
            border-bottom: 1px solid #eef2f6;
        }
        th {
            background: #f1f5f9;
            font-weight: 600;
            color: #0f172a;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f8fafc;
        }
        footer {
            margin-top: 3.6rem;
            padding-top: 2rem;
            border-top: 2px solid #eef2f6;
        }
        footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 1.6rem;
        }
        footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: #0f172a;
        }
        footer .footer-brand small {
            font-weight: 400;
            font-size: 0.85rem;
            color: #64748b;
            display: block;
        }
        friend-link {
            display: block;
            background: #f1f5f9;
            padding: 18px 22px;
            border-radius: 16px;
            margin: 1.2rem 0 0.8rem;
            font-size: 0.95rem;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 4px 12px;
            background: #fff;
            border-radius: 50px;
            border: 1px solid #e2e8f0;
            font-weight: 500;
            font-size: 0.9rem;
            transition: background 0.2s;
        }
        friend-link a:hover {
            background: #eef2ff;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding: 18px 0 8px;
            font-size: 0.85rem;
            color: #64748b;
            border-top: 1px solid #eef2f6;
            margin-top: 12px;
        }
        .copyright strong {
            color: #1e293b;
        }
        @media (max-width: 900px) {
            .wrapper {
                padding: 16px 18px 30px;
                border-radius: 18px;
            }
            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 .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .nav-mobile.open {
                display: flex;
            }
            .search-box {
                flex-direction: column;
            }
            .search-box input {
                min-width: auto;
            }
            .hero-img .img-placeholder span {
                font-size: 1.2rem;
            }
            .hero-img .img-placeholder i {
                font-size: 2.8rem;
            }
        }
        @media (min-width: 901px) {
            .nav-mobile {
                display: none !important;
            }
            .hamburger {
                display: none !important;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 8px;
            }
            .wrapper {
                padding: 12px 12px 24px;
                border-radius: 14px;
                margin-top: 12px;
            }
            h1 {
                font-size: 1.7rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
                gap: 4px 8px;
            }
            .card {
                padding: 18px 16px;
            }
            .feedback-card {
                padding: 18px 16px;
            }
            .link-grid {
                grid-template-columns: 1fr;
            }
        }