*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #0b1a2e;
            --secondary: #f58a1e;
            --accent: #2ec4b6;
            --bg: #f4f7fc;
            --card: #ffffff;
            --text: #1a202c;
            --text-light: #4a5568;
            --radius: 16px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --transition: 0.3s ease;
            --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: var(--secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #d97706;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: var(--primary);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            color: var(--secondary);
        }
        .my-logo:hover {
            color: var(--secondary);
            text-decoration: none;
        }
        .my-logo span {
            font-weight: 300;
            font-size: 14px;
            color: var(--accent);
            display: block;
            font-size: 12px;
            letter-spacing: 1px;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-list li a {
            color: #e2e8f0;
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list li a:hover,
        .nav-list li a.active {
            background: var(--secondary);
            color: #fff;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 24px;
            padding: 6px 12px;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
        }
        .hamburger:hover {
            background: var(--secondary);
            border-color: var(--secondary);
        }
        #nav-toggle {
            display: none;
        }
        #nav-toggle:checked~.nav-list {
            display: flex;
            flex-direction: column;
            width: 100%;
            background: var(--primary);
            padding: 16px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 12px;
        }
        #nav-toggle:checked~.nav-list li a {
            padding: 12px 20px;
            border-radius: 0;
        }
        .breadcrumb {
            background: #e9edf4;
            padding: 12px 0;
            font-size: 13px;
            color: var(--text-light);
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb ol li+li::before {
            content: "›";
            margin-right: 8px;
            color: #999;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--text-light);
            font-weight: 500;
        }
        main {
            padding: 40px 0 60px;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-content h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 12px;
        }
        .article-content h1 i {
            color: var(--secondary);
        }
        .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 24px;
            border-bottom: 2px solid #e2e8f0;
            padding-bottom: 16px;
        }
        .meta-info i {
            margin-right: 4px;
        }
        .last-updated {
            font-weight: 600;
            color: var(--primary);
        }
        .article-content h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-top: 40px;
            margin-bottom: 16px;
            border-left: 5px solid var(--secondary);
            padding-left: 16px;
        }
        .article-content h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: #1e293b;
            margin-top: 32px;
            margin-bottom: 12px;
        }
        .article-content h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #334155;
            margin-top: 24px;
            margin-bottom: 8px;
        }
        .article-content p {
            margin-bottom: 18px;
            color: var(--text);
        }
        .article-content ul,
        .article-content ol {
            margin-bottom: 20px;
            padding-left: 28px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content strong {
            color: var(--primary);
        }
        .article-content .highlight-box {
            background: linear-gradient(135deg, #fef9e7, #fdebd0);
            border-left: 6px solid var(--secondary);
            padding: 24px 28px;
            border-radius: 12px;
            margin: 28px 0;
        }
        .article-content .highlight-box i {
            color: var(--secondary);
            font-size: 1.5rem;
            margin-right: 10px;
        }
        .article-content .tip-card {
            background: var(--card);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            margin: 28px 0;
            border: 1px solid #e9edf4;
        }
        .image-wrapper {
            margin: 30px 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            background: #e2e8f0;
            position: relative;
        }
        .image-wrapper img {
            width: 100%;
            object-fit: cover;
            min-height: 200px;
        }
        .image-wrapper .caption {
            padding: 12px 20px;
            font-size: 13px;
            color: var(--text-light);
            background: #f8fafc;
            border-top: 1px solid #e2e8f0;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: var(--card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 24px;
            margin-bottom: 28px;
            border: 1px solid #e9edf4;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card ul li {
            padding: 8px 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .sidebar-card ul li a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
        }
        .sidebar-card ul li a i {
            color: var(--secondary);
            font-size: 12px;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin-bottom: 4px;
        }
        .search-form input {
            flex: 1;
            padding: 12px 18px;
            border: 2px solid #e2e8f0;
            border-radius: 30px;
            font-size: 15px;
            outline: none;
            transition: var(--transition);
            background: #f8fafc;
        }
        .search-form input:focus {
            border-color: var(--secondary);
            background: #fff;
        }
        .search-form button {
            background: var(--secondary);
            color: #fff;
            border: none;
            padding: 12px 22px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .search-form button:hover {
            background: #d97706;
            transform: scale(1.02);
        }
        .comment-section {
            margin-top: 50px;
            padding-top: 40px;
            border-top: 3px solid #e2e8f0;
        }
        .comment-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .comment-form textarea {
            width: 100%;
            padding: 16px 20px;
            border: 2px solid #e2e8f0;
            border-radius: var(--radius);
            font-size: 15px;
            min-height: 120px;
            outline: none;
            transition: var(--transition);
            font-family: var(--font);
            resize: vertical;
            background: #f8fafc;
        }
        .comment-form textarea:focus {
            border-color: var(--secondary);
            background: #fff;
        }
        .comment-form .form-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 12px;
            align-items: center;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 180px;
            padding: 12px 18px;
            border: 2px solid #e2e8f0;
            border-radius: 30px;
            font-size: 15px;
            outline: none;
            transition: var(--transition);
            background: #f8fafc;
        }
        .comment-form .form-row input:focus {
            border-color: var(--secondary);
            background: #fff;
        }
        .comment-form .form-row button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 32px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .comment-form .form-row button:hover {
            background: #1a2d46;
            transform: scale(1.02);
        }
        .rating-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            margin: 16px 0 24px;
            padding: 20px 24px;
            background: #f8fafc;
            border-radius: var(--radius);
            border: 1px solid #e2e8f0;
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 28px;
            color: #d1d5db;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars i {
            transition: var(--transition);
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #f59e0b;
        }
        .rating-stars i:hover~i {
            color: #d1d5db;
        }
        .rating-form button {
            background: var(--accent);
            color: #fff;
            border: none;
            padding: 10px 28px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-form button:hover {
            background: #1fa89b;
        }
        friend-link {
            display: block;
            background: var(--primary);
            color: #e2e8f0;
            padding: 40px 0 24px;
            margin-top: 40px;
        }
        friend-link .container {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 40px;
            justify-content: center;
        }
        friend-link a {
            color: #e2e8f0;
            font-size: 14px;
            padding: 6px 12px;
            border-radius: 20px;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        friend-link a:hover {
            color: var(--secondary);
            border-color: var(--secondary);
            text-decoration: none;
        }
        friend-link .fl-title {
            width: 100%;
            text-align: center;
            font-size: 16px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 8px;
            letter-spacing: 1px;
        }
        footer {
            background: #0a1420;
            color: #94a3b8;
            padding: 28px 0;
            text-align: center;
            font-size: 14px;
        }
        footer .container {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        footer a {
            color: var(--accent);
        }
        footer a:hover {
            color: #fff;
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0;
            }
            .nav-list li a {
                padding: 12px 16px;
                border-radius: 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            #nav-toggle:checked~.nav-list {
                display: flex;
            }
            .article-content h1 {
                font-size: 1.8rem;
            }
            .article-content h2 {
                font-size: 1.4rem;
            }
            .article-content h3 {
                font-size: 1.2rem;
            }
            .main-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .meta-info {
                font-size: 12px;
                gap: 10px;
            }
            .rating-wrap {
                flex-direction: column;
                align-items: flex-start;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
            .breadcrumb ol {
                font-size: 12px;
            }
            friend-link .container {
                gap: 12px;
            }
            .my-logo {
                font-size: 22px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .article-content h1 {
                font-size: 1.5rem;
            }
            .article-content h2 {
                font-size: 1.2rem;
                padding-left: 12px;
            }
            .comment-form .form-row {
                flex-direction: column;
            }
            .comment-form .form-row input {
                width: 100%;
            }
            .comment-form .form-row button {
                width: 100%;
                justify-content: center;
            }
        }
        .schema-hidden {
            display: none;
        }
        .nav-list {
            transition: all 0.3s ease;
        }
        .btn-submit:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }
        .toast-msg {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            margin-top: 8px;
        }
        .toast-msg.success {
            background: #d1fae5;
            color: #065f46;
        }
        .toast-msg.error {
            background: #fee2e2;
            color: #991b1b;
        }
        .toast-msg.info {
            background: #dbeafe;
            color: #1e40af;
        }