*,
        *::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: #f5f7fa;
            color: #1a1a2e;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #0057b3;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #ff6b00;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            color: #0d1b2a;
        }
        h1 {
            font-size: 2.2rem;
            margin-top: 0.5rem;
            border-bottom: 3px solid #ff6b00;
            padding-bottom: 0.5rem;
            display: inline-block;
        }
        h2 {
            font-size: 1.7rem;
            border-left: 5px solid #ff6b00;
            padding-left: 1rem;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.35rem;
            margin-top: 1.8rem;
        }
        h4 {
            font-size: 1.15rem;
            margin-top: 1.2rem;
            color: #2d3a4a;
        }
        p {
            margin-bottom: 1.1rem;
            font-size: 1.05rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1a2e 0%, #1a2f3f 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            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: 0.8rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: 1px;
            background: linear-gradient(135deg, #f7971e, #ffd200);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #ffd200;
            font-size: 1.6rem;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.9;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #e0e0e0;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.25s;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #fff;
            background: rgba(255, 183, 77, 0.2);
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 0.3rem;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.7rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dee2e6;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #888;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #0057b3;
        }
        .breadcrumb .current {
            color: #555;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
            color: #fff;
            padding: 3rem 0 2.5rem;
            margin-bottom: 2rem;
            border-radius: 0 0 40px 40px;
        }
        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        .hero h1 {
            color: #fff;
            border-bottom-color: #ffd200;
            font-size: 2.4rem;
            margin-top: 0;
        }
        .hero p {
            font-size: 1.15rem;
            max-width: 800px;
            opacity: 0.92;
        }
        .hero .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            font-size: 0.95rem;
            color: #ffd200;
        }
        .hero .meta-info i {
            margin-right: 0.4rem;
        }
        .page-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 0 0 3rem;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .widget {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            margin-bottom: 1.8rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            border: 1px solid #eef1f5;
        }
        .widget h3 {
            font-size: 1.2rem;
            margin-top: 0;
            margin-bottom: 1rem;
            border-bottom: 2px solid #ff6b00;
            padding-bottom: 0.5rem;
        }
        .widget ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .widget li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0f0f0;
        }
        .widget li:last-child {
            border-bottom: none;
        }
        .widget a {
            display: block;
            padding: 0.3rem 0;
            font-weight: 500;
        }
        .widget a i {
            margin-right: 0.5rem;
            color: #ff6b00;
            width: 1.2rem;
        }
        .featured-image {
            margin: 2rem 0 1.5rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
        }
        .featured-image figcaption {
            background: #fff;
            padding: 0.8rem 1.2rem;
            font-size: 0.9rem;
            color: #555;
            border-top: 1px solid #eee;
            font-style: italic;
        }
        .search-box {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
            margin: 1.5rem 0;
        }
        .search-box input {
            flex: 1;
            min-width: 180px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #ddd;
            border-radius: 50px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
        }
        .search-box input:focus {
            border-color: #ff6b00;
        }
        .search-box button {
            padding: 0.8rem 2rem;
            background: #ff6b00;
            color: #fff;
            border: none;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
        }
        .search-box button:hover {
            background: #e05a00;
            transform: scale(1.02);
        }
        .feedback-section {
            background: #fff;
            border-radius: 20px;
            padding: 2rem;
            margin: 2.5rem 0;
            box-shadow: 0 4px 25px rgba(0, 0, 0, 0.06);
            border: 1px solid #eef1f5;
        }
        .feedback-section h2 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.4rem;
            font-size: 0.95rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #e0e0e0;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            transition: border 0.3s;
            background: #fafafa;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #ff6b00;
            outline: none;
            background: #fff;
        }
        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }
        .btn-submit {
            padding: 0.9rem 2.5rem;
            background: #0b1a2e;
            color: #fff;
            border: none;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        .btn-submit:hover {
            background: #ff6b00;
            transform: translateY(-2px);
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #ffc107;
            cursor: pointer;
            direction: rtl;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            cursor: pointer;
            transition: color 0.2s, transform 0.2s;
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label,
        .rating-stars input:checked~label {
            color: #ff6b00;
            transform: scale(1.1);
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
        }
        th,
        td {
            padding: 0.9rem 1.2rem;
            text-align: left;
            border-bottom: 1px solid #eef1f5;
        }
        th {
            background: #0b1a2e;
            color: #fff;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f8f9fc;
        }
        .site-footer {
            background: #0b1a2e;
            color: #ccc;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
            border-radius: 40px 40px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .site-footer h4 {
            color: #ffd200;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .site-footer a {
            color: #bbb;
        }
        .site-footer a:hover {
            color: #ffd200;
        }
        friend-link {
            display: block;
            padding: 1rem 0;
            border-top: 1px solid #2a3a4a;
            margin-top: 1rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 1rem 0.3rem 0;
            padding: 0.3rem 0.8rem;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 20px;
            font-size: 0.9rem;
        }
        friend-link a:hover {
            background: rgba(255, 215, 0, 0.15);
            color: #ffd200;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2a3a4a;
            font-size: 0.9rem;
            color: #888;
        }
        .copyright strong {
            color: #ccc;
        }
        @media (max-width: 992px) {
            .page-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: #0d1f2e;
                padding: 0.8rem 0;
                border-radius: 12px;
                margin-top: 0.5rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.7rem 1.2rem;
                border-bottom: 1px solid #1a2f3f;
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .hero .meta-info {
                flex-direction: column;
                gap: 0.5rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            h1 {
                font-size: 1.4rem;
            }
            .hero {
                padding: 2rem 0 1.5rem;
            }
            .feedback-section {
                padding: 1.2rem;
            }
        }
        .highlight-box {
            background: #fff7ed;
            border-left: 5px solid #ff6b00;
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }
        .tag {
            display: inline-block;
            background: #ff6b00;
            color: #fff;
            padding: 0.2rem 0.8rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-wrap: wrap;
        }
        .text-muted {
            color: #6c757d;
            font-size: 0.9rem;
        }