*,
        *::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', Arial, sans-serif;
            background: #f8f5f0;
            color: #1e1e2a;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #7c3aed;
            text-decoration: none;
            transition: color 0.25s ease, box-shadow 0.25s ease;
        }
        a:hover,
        a:focus-visible {
            color: #a78bfa;
            box-shadow: 0 2px 0 #a78bfa;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .skip-link {
            position: absolute;
            top: -100%;
            left: 1rem;
            background: #7c3aed;
            color: #fff;
            padding: 0.5rem 1.2rem;
            border-radius: 0 0 8px 8px;
            z-index: 1000;
            font-weight: 600;
        }
        .skip-link:focus {
            top: 0;
        }
        .site-header {
            background: linear-gradient(135deg, #1e1e2a 0%, #2d1b69 100%);
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 999;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #fbbf24, #f59e0b, #f97316);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 12px rgba(251, 191, 36, 0.3);
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        .my-logo small {
            font-size: 0.7rem;
            -webkit-text-fill-color: #c4b5fd;
            color: #c4b5fd;
            display: block;
            font-weight: 400;
            letter-spacing: 0.5px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #c4b5fd;
            color: #c4b5fd;
            font-size: 1.5rem;
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.25s;
        }
        .nav-toggle:hover {
            background: rgba(196, 181, 253, 0.15);
        }
        .primary-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: wrap;
        }
        .primary-nav a {
            color: #e0d7ff;
            padding: 0.4rem 0.9rem;
            border-radius: 6px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .primary-nav a:hover,
        .primary-nav a:focus-visible {
            background: rgba(196, 181, 253, 0.18);
            color: #fbbf24;
            box-shadow: none;
        }
        .primary-nav a i {
            margin-right: 0.3rem;
            font-size: 0.8rem;
        }
        #nav-toggle-check {
            display: none;
        }
        .breadcrumb {
            background: #f0ebe3;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #e2d9ce;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #9a8c7a;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #6d5b4b;
        }
        .breadcrumb a:hover {
            color: #7c3aed;
        }
        .breadcrumb [aria-current="page"] {
            color: #1e1e2a;
            font-weight: 600;
        }
        main {
            padding: 2.5rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media(max-width:992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 900;
            line-height: 1.2;
            color: #1e1e2a;
            margin-bottom: 0.75rem;
            letter-spacing: -0.5px;
        }
        h1 .highlight {
            background: linear-gradient(135deg, #7c3aed, #fbbf24);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #2d1b69;
            margin-top: 2.8rem;
            margin-bottom: 0.8rem;
            border-bottom: 4px solid #fbbf24;
            padding-bottom: 0.3rem;
            display: inline-block;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #4c1d95;
            margin-top: 2rem;
            margin-bottom: 0.5rem;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #6d28d9;
            margin-top: 1.3rem;
            margin-bottom: 0.3rem;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .lead {
            font-size: 1.2rem;
            color: #3d3d4a;
            font-weight: 400;
            border-left: 4px solid #fbbf24;
            padding-left: 1.2rem;
            margin-bottom: 1.8rem;
        }
        .feature-img {
            border-radius: 16px;
            overflow: hidden;
            margin: 2rem 0;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
            background: #e9e0d5;
        }
        .feature-img img {
            width: 100%;
            aspect-ratio: 1200/630;
            object-fit: cover;
        }
        .feature-img figcaption {
            padding: 0.8rem 1.2rem;
            font-size: 0.9rem;
            color: #5a4a3a;
            background: #fff;
            font-style: italic;
        }
        .info-box {
            background: #f0ecf9;
            border-radius: 12px;
            padding: 1.5rem 2rem;
            margin: 1.8rem 0;
            border-left: 6px solid #7c3aed;
        }
        .info-box.success {
            background: #ecfdf5;
            border-left-color: #10b981;
        }
        .info-box.warning {
            background: #fffbeb;
            border-left-color: #f59e0b;
        }
        .info-box h4 {
            margin-top: 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1.2rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: #fff;
            border-radius: 12px;
            padding: 1.5rem 1rem;
            text-align: center;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            border: 1px solid #e9e0d5;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.10);
        }
        .stat-card .num {
            font-size: 2.4rem;
            font-weight: 900;
            color: #7c3aed;
            display: block;
        }
        .stat-card .label {
            font-size: 0.9rem;
            color: #6d5b4b;
            margin-top: 0.2rem;
        }
        .link-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            margin: 1rem 0;
            padding: 0;
            list-style: none;
        }
        .link-group li a {
            background: #f0ecf9;
            padding: 0.25rem 1rem;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            display: inline-block;
            border: 1px solid #d9cff0;
            transition: background 0.25s, border-color 0.25s;
        }
        .link-group li a:hover {
            background: #7c3aed;
            color: #fff;
            border-color: #7c3aed;
            box-shadow: none;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 12px;
            padding: 1.5rem;
            margin-bottom: 1.8rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            border: 1px solid #e9e0d5;
        }
        .sidebar-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            border-bottom: 2px solid #fbbf24;
            padding-bottom: 0.4rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0ece6;
        }
        .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .sidebar-card ul li a {
            font-weight: 500;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0 0.5rem;
        }
        .search-form input[type="search"] {
            flex: 1;
            padding: 0.75rem 1rem;
            border: 2px solid #e2d9ce;
            border-radius: 8px;
            font-size: 1rem;
            background: #faf8f5;
            transition: border-color 0.25s;
        }
        .search-form input[type="search"]:focus {
            outline: none;
            border-color: #7c3aed;
            background: #fff;
        }
        .search-form button {
            padding: 0.75rem 1.4rem;
            background: #7c3aed;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
        }
        .search-form button:hover {
            background: #6d28d9;
            transform: scale(1.02);
        }
        .feedback-form {
            background: #fff;
            border-radius: 12px;
            padding: 2rem;
            margin: 2.5rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            border: 1px solid #e9e0d5;
        }
        .feedback-form h3 {
            margin-top: 0;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            margin-bottom: 1rem;
        }
        .form-row.one {
            grid-template-columns: 1fr;
        }
        .feedback-form label {
            font-weight: 600;
            font-size: 0.95rem;
            color: #2d1b69;
            display: block;
            margin-bottom: 0.2rem;
        }
        .feedback-form input,
        .feedback-form textarea,
        .feedback-form select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #e2d9ce;
            border-radius: 8px;
            font-size: 1rem;
            background: #faf8f5;
            transition: border-color 0.25s;
            font-family: inherit;
        }
        .feedback-form input:focus,
        .feedback-form textarea:focus,
        .feedback-form select:focus {
            outline: none;
            border-color: #7c3aed;
            background: #fff;
        }
        .feedback-form textarea {
            min-height: 120px;
            resize: vertical;
        }
        .feedback-form .btn-submit {
            padding: 0.8rem 2.2rem;
            background: linear-gradient(135deg, #7c3aed, #6d28d9);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 1.05rem;
            font-weight: 700;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            margin-top: 0.5rem;
        }
        .feedback-form .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(124, 58, 237, 0.35);
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #d9cff0;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            transition: color 0.2s;
            color: #d9cff0;
            cursor: pointer;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #fbbf24;
        }
        .site-footer {
            background: #1e1e2a;
            color: #c4b5fd;
            padding: 2.5rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        @media(max-width:768px) {
            .footer-inner {
                grid-template-columns: 1fr;
            }
        }
        .site-footer h4 {
            color: #fbbf24;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .site-footer a {
            color: #c4b5fd;
        }
        .site-footer a:hover {
            color: #fbbf24;
        }
        friend-link {
            display: block;
            margin-top: 0.5rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.5rem;
            margin-bottom: 0.3rem;
        }
        .copyright {
            text-align: center;
            border-top: 1px solid #3d3d5a;
            padding-top: 1.5rem;
            margin-top: 2rem;
            font-size: 0.85rem;
            color: #9a8cb0;
        }
        @media(max-width:768px) {
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .primary-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: rgba(30, 30, 42, 0.98);
                padding: 0.8rem 0.5rem;
                border-radius: 12px;
                margin-top: 0.5rem;
            }
            .primary-nav a {
                padding: 0.7rem 1rem;
                border-bottom: 1px solid rgba(196, 181, 253, 0.1);
            }
            #nav-toggle-check:checked~.primary-nav {
                display: flex;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .sidebar {
                position: static;
            }
            .feedback-form {
                padding: 1.2rem;
            }
        }
        @media(max-width:480px) {
            .my-logo {
                font-size: 1.4rem;
            }
            .stat-card .num {
                font-size: 1.8rem;
            }
            .container {
                padding: 0 1rem;
            }
        }
        @media print {
            .site-header {
                position: static;
                background: #fff;
                color: #000;
            }
            .nav-toggle,
            .primary-nav {
                display: none !important;
            }
            .sidebar {
                display: none;
            }
            .feedback-form {
                break-inside: avoid;
            }
        }