* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', 'Roboto', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: #1e293b;
            background: #f8fafc;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #0f6cbf;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #b22234;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            margin-top: 0;
            color: #0b1e33;
            font-weight: 700;
        }
        h1 {
            font-size: 2.2rem;
            margin-bottom: 1rem;
            border-bottom: 4px solid #f97316;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.7rem;
            margin-bottom: 0.9rem;
            border-left: 5px solid #f97316;
            padding-left: 0.9rem;
        }
        h3 {
            font-size: 1.3rem;
            margin-bottom: 0.7rem;
            color: #1e3a5f;
        }
        h4 {
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
            color: #2c3e50;
        }
        p {
            margin-bottom: 1.1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1e33 0%, #1a3a5c 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .header-grid {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            text-decoration: none;
            letter-spacing: -0.5px;
            background: linear-gradient(90deg, #f97316, #fbbf24);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 12px rgba(249, 115, 22, 0.3);
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.7rem;
            -webkit-text-fill-color: #94a3b8;
            display: block;
            font-weight: 400;
            letter-spacing: 1px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.6rem;
            padding: 0.4rem 0.8rem;
            border-radius: 6px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .main-nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #e2e8f0;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            font-size: 0.95rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
            text-decoration: none;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background: rgba(249, 115, 22, 0.2);
            color: #fbbf24;
            text-decoration: none;
        }
        .main-nav a.active {
            background: #f97316;
            color: #fff;
        }
        .breadcrumb {
            background: #f1f5f9;
            padding: 0.7rem 0;
            border-bottom: 1px solid #e2e8f0;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb ul li+li::before {
            content: "\f054";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-right: 0.6rem;
            color: #94a3b8;
            font-size: 0.7rem;
        }
        .breadcrumb a {
            color: #0f6cbf;
        }
        .breadcrumb .current {
            color: #475569;
            font-weight: 600;
        }
        .page-wrap {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            padding: 2rem 0;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 5.5rem;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            margin-bottom: 1.5rem;
            border: 1px solid #e9edf2;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            border-bottom: 2px solid #f97316;
            padding-bottom: 0.4rem;
            margin-bottom: 0.8rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .sidebar-card ul li a {
            font-size: 0.92rem;
            display: block;
            padding: 0.2rem 0;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
            background: #fff;
            padding: 0.3rem;
            border-radius: 50px;
            border: 2px solid #e2e8f0;
            transition: border-color 0.3s;
        }
        .search-form:focus-within {
            border-color: #f97316;
        }
        .search-form input {
            flex: 1;
            border: none;
            padding: 0.7rem 1.2rem;
            font-size: 1rem;
            border-radius: 50px;
            outline: none;
            background: transparent;
        }
        .search-form button {
            background: #f97316;
            color: #fff;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: 50px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            font-weight: 600;
        }
        .search-form button:hover {
            background: #e85d0e;
            transform: scale(1.02);
        }
        .content-card {
            background: #fff;
            border-radius: 16px;
            padding: 2rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
            border: 1px solid #e9edf2;
            margin-bottom: 2rem;
        }
        .featured-image {
            border-radius: 12px;
            margin: 1.2rem 0 2rem;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.1);
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 0.8rem;
            padding: 0;
            list-style: none;
            margin: 1.2rem 0;
        }
        .link-list li {
            margin: 0;
        }
        .link-list a {
            display: block;
            padding: 0.7rem 1.2rem;
            background: #f8fafc;
            border-radius: 8px;
            border-left: 4px solid #f97316;
            font-weight: 500;
            transition: background 0.2s, transform 0.15s;
            font-size: 0.95rem;
        }
        .link-list a:hover {
            background: #ffedd5;
            transform: translateX(4px);
            text-decoration: none;
        }
        .feedback-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .feedback-card {
            background: #f8fafc;
            border-radius: 12px;
            padding: 1.5rem;
            border: 1px solid #e2e8f0;
        }
        .feedback-card h3 {
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card textarea,
        .feedback-card input,
        .feedback-card select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            font-size: 0.95rem;
            font-family: inherit;
            transition: border-color 0.2s;
            margin-bottom: 0.8rem;
            background: #fff;
        }
        .feedback-card textarea:focus,
        .feedback-card input:focus,
        .feedback-card select:focus {
            border-color: #f97316;
            outline: none;
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card .btn {
            background: #0b1e33;
            color: #fff;
            border: none;
            padding: 0.7rem 1.6rem;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card .btn:hover {
            background: #1a3a5c;
            transform: translateY(-1px);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            margin-bottom: 0.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #d1d5db;
            cursor: pointer;
            transition: color 0.2s, transform 0.1s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #fbbf24;
        }
        .star-rating label:hover {
            transform: scale(1.1);
        }
        friend-link {
            display: block;
            padding: 1.2rem 0;
            border-top: 1px solid #e2e8f0;
            margin-top: 1.5rem;
        }
        friend-link ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem 2rem;
            margin: 0.6rem 0 0;
        }
        friend-link ul li a {
            color: #0f6cbf;
            font-weight: 500;
        }
        friend-link ul li a:hover {
            color: #b22234;
        }
        .site-footer {
            background: #0b1e33;
            color: #cbd5e1;
            padding: 2rem 0 1.5rem;
            margin-top: 2rem;
            border-top: 4px solid #f97316;
        }
        .site-footer .copyright {
            text-align: center;
            font-size: 0.9rem;
            padding-top: 1rem;
            border-top: 1px solid #1e3a5f;
            margin-top: 1rem;
            color: #94a3b8;
        }
        @media (max-width: 992px) {
            .page-wrap {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #0b1e33;
                padding: 0.8rem 0;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                margin-top: 0.5rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.7rem 1.2rem;
                border-radius: 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .feedback-section {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .content-card {
                padding: 1.2rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .link-list {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .header-grid {
                flex-direction: row;
            }
            .search-form {
                flex-direction: column;
                border-radius: 16px;
            }
            .search-form input {
                width: 100%;
                border-radius: 12px;
            }
            .search-form button {
                width: 100%;
                border-radius: 12px;
                justify-content: center;
            }
            .breadcrumb ul {
                font-size: 0.8rem;
            }
        }
        .update-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #f1f5f9;
            padding: 0.4rem 1rem;
            border-radius: 50px;
            font-size: 0.85rem;
            color: #475569;
            margin-bottom: 1.2rem;
            border: 1px solid #e2e8f0;
        }
        .emoji-lg {
            font-size: 1.3rem;
        }
        .text-muted {
            color: #64748b;
            font-size: 0.92rem;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .highlight-box {
            background: #fffbeb;
            border-left: 5px solid #f97316;
            padding: 1rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.2rem 0;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        table th {
            background: #0b1e33;
            color: #fff;
            padding: 0.7rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        table td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #e2e8f0;
        }
        table tr:nth-child(even) {
            background: #f8fafc;
        }