* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f5f7fa;
            color: #1e2a3a;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #d32f2f;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #b71c1c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0d1b2a 0%, #1b2838 100%);
            padding: 16px 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;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #ffb300;
            letter-spacing: 1px;
            text-shadow: 0 2px 8px rgba(255, 179, 0, 0.3);
            transition: transform 0.25s;
        }
        .my-logo:hover {
            transform: scale(1.03);
            text-decoration: none;
            color: #ffc107;
        }
        .my-logo i {
            margin-right: 8px;
            color: #d32f2f;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-list li a {
            color: #e0e6ed;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 30px;
            transition: background 0.25s, color 0.25s;
            font-size: 0.95rem;
        }
        .nav-list li a:hover {
            background: rgba(255, 179, 0, 0.15);
            color: #ffb300;
            text-decoration: none;
        }
        .nav-list li a.active {
            background: #d32f2f;
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 2rem;
            color: #ffb300;
            cursor: pointer;
            padding: 4px 10px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-check {
            display: none;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 12px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dce1e8;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
        }
        .breadcrumb ol li+li:before {
            content: "›";
            margin-right: 10px;
            color: #888;
        }
        .breadcrumb a {
            color: #d32f2f;
        }
        .breadcrumb span {
            color: #555;
        }
        .main-content {
            padding: 40px 0 60px;
        }
        .article-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-body h1 {
            font-size: 2.6rem;
            color: #0d1b2a;
            margin-bottom: 12px;
            line-height: 1.2;
            border-left: 6px solid #d32f2f;
            padding-left: 20px;
        }
        .article-body .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: #6c757d;
            font-size: 0.95rem;
            margin-bottom: 28px;
            border-bottom: 1px solid #e9ecef;
            padding-bottom: 16px;
        }
        .article-body .meta-info i {
            margin-right: 6px;
            color: #d32f2f;
        }
        .article-body h2 {
            font-size: 2rem;
            color: #0d1b2a;
            margin: 48px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #ffb300;
        }
        .article-body h3 {
            font-size: 1.5rem;
            color: #1b2838;
            margin: 32px 0 12px;
        }
        .article-body h4 {
            font-size: 1.2rem;
            color: #2c3e50;
            margin: 24px 0 8px;
            font-weight: 600;
        }
        .article-body p {
            margin-bottom: 18px;
            text-align: justify;
        }
        .article-body strong {
            color: #b71c1c;
        }
        .article-body ul,
        .article-body ol {
            margin: 12px 0 20px 24px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .feature-image {
            margin: 32px 0;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
        }
        .feature-image figcaption {
            text-align: center;
            font-size: 0.9rem;
            color: #6c757d;
            margin-top: 8px;
            font-style: italic;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fff8e1, #fff3cd);
            border-left: 6px solid #ffb300;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .highlight-box i {
            color: #d32f2f;
            margin-right: 8px;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
        }
        .data-table th {
            background: #0d1b2a;
            color: #ffb300;
            padding: 14px 18px;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 12px 18px;
            border-bottom: 1px solid #e9ecef;
        }
        .data-table tr:last-child td {
            border-bottom: none;
        }
        .data-table tr:hover td {
            background: #f8f9fa;
        }
        .btn {
            display: inline-block;
            background: #d32f2f;
            color: #fff;
            padding: 10px 28px;
            border-radius: 40px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            font-size: 1rem;
        }
        .btn:hover {
            background: #b71c1c;
            transform: translateY(-2px);
            text-decoration: none;
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #d32f2f;
            color: #d32f2f;
        }
        .btn-outline:hover {
            background: #d32f2f;
            color: #fff;
        }
        .sidebar {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            margin-bottom: 28px;
        }
        .sidebar-card h3 {
            font-size: 1.3rem;
            color: #0d1b2a;
            margin-bottom: 16px;
            border-left: 4px solid #d32f2f;
            padding-left: 12px;
        }
        .sidebar-link-list {
            list-style: none;
        }
        .sidebar-link-list li {
            margin-bottom: 10px;
        }
        .sidebar-link-list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #1e2a3a;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 10px;
            transition: background 0.2s;
        }
        .sidebar-link-list li a:hover {
            background: #f1f3f5;
            text-decoration: none;
            color: #d32f2f;
        }
        .sidebar-link-list li a i {
            color: #d32f2f;
            width: 20px;
            text-align: center;
        }
        .form-section {
            background: #fff;
            border-radius: 16px;
            padding: 32px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            margin: 40px 0;
        }
        .form-section h2 {
            margin-top: 0 !important;
            border-bottom: none !important;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 6px;
            color: #1b2838;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #e0e6ed;
            border-radius: 10px;
            font-size: 1rem;
            transition: border-color 0.25s;
            font-family: inherit;
            background: #fafbfc;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #d32f2f;
            background: #fff;
        }
        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }
        .star-rating {
            display: flex;
            gap: 8px;
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            transition: color 0.2s;
            color: #ddd;
            cursor: pointer;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #ffb300;
        }
        .comment-item {
            background: #f8f9fa;
            padding: 18px 22px;
            border-radius: 12px;
            margin-bottom: 16px;
            border-left: 4px solid #d32f2f;
        }
        .comment-item .author {
            font-weight: 700;
            color: #0d1b2a;
        }
        .comment-item .date {
            font-size: 0.85rem;
            color: #888;
            margin-left: 12px;
        }
        .comment-item .text {
            margin-top: 8px;
        }
        .site-footer {
            background: #0d1b2a;
            color: #c8d0d8;
            padding: 40px 0 24px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-grid h4 {
            color: #ffb300;
            margin-bottom: 16px;
            font-size: 1.2rem;
        }
        .footer-grid a {
            color: #b0bec5;
            display: block;
            margin-bottom: 8px;
            transition: color 0.2s;
        }
        .footer-grid a:hover {
            color: #ffb300;
            text-decoration: none;
        }
        friend-link {
            display: block;
            margin-top: 12px;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 10px;
            border-left: 4px solid #ffb300;
        }
        friend-link a {
            display: inline-block;
            margin-right: 20px;
            margin-bottom: 4px;
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            text-align: center;
            font-size: 0.9rem;
            color: #8899a6;
        }
        .copyright strong {
            color: #ffb300;
        }
        @media (max-width: 1024px) {
            .article-wrapper {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #0d1b2a;
                padding: 16px 0 20px;
                border-top: 1px solid rgba(255, 255, 255, 0.06);
                margin-top: 12px;
                gap: 4px;
            }
            .nav-check:checked~.nav-list {
                display: flex;
            }
            .nav-list li a {
                padding: 12px 20px;
                width: 100%;
                border-radius: 0;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .article-body h1 {
                font-size: 1.9rem;
                padding-left: 14px;
            }
            .article-body h2 {
                font-size: 1.6rem;
            }
            .article-body h3 {
                font-size: 1.3rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .form-section {
                padding: 20px;
            }
            .data-table {
                font-size: 0.9rem;
            }
            .data-table th,
            .data-table td {
                padding: 10px 12px;
            }
            .star-rating {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .article-body h1 {
                font-size: 1.6rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .btn {
                padding: 8px 20px;
                font-size: 0.9rem;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        .author-bio {
            display: flex;
            align-items: center;
            gap: 16px;
            background: #f1f4f8;
            padding: 18px 22px;
            border-radius: 14px;
            margin: 32px 0;
        }
        .author-bio .avatar {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: #d32f2f;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: #fff;
            flex-shrink: 0;
        }
        .author-bio .info strong {
            color: #0d1b2a;
        }
        .author-bio .info p {
            margin-bottom: 0;
            font-size: 0.95rem;
        }