*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f5f7fa;
            color: #1a1a2e;
            line-height: 1.8;
            padding: 0;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
            padding: 18px 0;
            border-bottom: 4px solid #f39c12;
            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: #f39c12;
            text-decoration: none;
            letter-spacing: 1px;
            text-shadow: 0 2px 8px rgba(243, 156, 18, 0.3);
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.03);
            color: #f1c40f;
        }
        .my-logo i {
            margin-right: 6px;
            color: #e74c3c;
        }
        .nav-menu {
            display: flex;
            gap: 28px;
            align-items: center;
            list-style: none;
        }
        .nav-menu li a {
            color: #e0e0e0;
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: all 0.25s ease;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-menu li a:hover {
            color: #f39c12;
            border-bottom-color: #f39c12;
        }
        .nav-menu li a i {
            font-size: 0.85rem;
        }
        .hamburger {
            display: none;
            font-size: 1.9rem;
            color: #f39c12;
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px 10px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(243, 156, 18, 0.15);
        }
        .breadcrumb {
            background: #ffffff;
            padding: 12px 0;
            border-bottom: 1px solid #e0e0e0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .breadcrumb ol li {
            display: flex;
            align-items: center;
            gap: 6px;
            color: #555;
        }
        .breadcrumb ol li a {
            color: #2c3e50;
            text-decoration: none;
        }
        .breadcrumb ol li a:hover {
            color: #f39c12;
        }
        .breadcrumb ol li+li::before {
            content: "›";
            color: #999;
            margin-right: 6px;
            font-size: 1.2rem;
        }
        main {
            padding: 40px 0 60px;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media(max-width:992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .article-body h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #0f0c29;
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .article-body h1 i {
            color: #f39c12;
            margin-right: 10px;
        }
        .article-body .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: #666;
            font-size: 0.95rem;
            margin-bottom: 30px;
            padding-bottom: 16px;
            border-bottom: 2px dashed #ddd;
        }
        .article-body .meta-info i {
            margin-right: 6px;
            color: #f39c12;
        }
        .article-body h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #1a1a2e;
            margin: 48px 0 16px;
            padding-left: 14px;
            border-left: 5px solid #f39c12;
        }
        .article-body h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #2c3e50;
            margin: 32px 0 12px;
        }
        .article-body h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #34495e;
            margin: 24px 0 10px;
        }
        .article-body p {
            margin-bottom: 18px;
            color: #2d2d3f;
        }
        .article-body ul,
        .article-body ol {
            margin: 12px 0 22px 28px;
            color: #2d2d3f;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body strong {
            color: #0f0c29;
        }
        .article-body .highlight-box {
            background: linear-gradient(135deg, #fff9e6, #fff5d6);
            border-left: 6px solid #f39c12;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 28px 0;
            box-shadow: 0 2px 12px rgba(243, 156, 18, 0.12);
        }
        .article-body .highlight-box i {
            color: #f39c12;
            margin-right: 8px;
        }
        .article-body .tip-card {
            background: #eafaf1;
            border-radius: 12px;
            padding: 18px 22px;
            margin: 20px 0;
            border: 1px solid #a3d9b1;
        }
        .article-body .tip-card i {
            color: #27ae60;
            margin-right: 8px;
        }
        .featured-image {
            margin: 32px 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.1);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.4s ease;
        }
        .featured-image img:hover {
            transform: scale(1.01);
        }
        .featured-image figcaption {
            background: #fff;
            padding: 10px 16px;
            font-size: 0.9rem;
            color: #666;
            text-align: center;
            border-top: 1px solid #eee;
        }
        .sidebar {
            background: #ffffff;
            border-radius: 16px;
            padding: 24px 20px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            position: sticky;
            top: 100px;
            height: fit-content;
            max-height: calc(100vh - 120px);
            overflow-y: auto;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #0f0c29;
            margin-bottom: 16px;
            border-bottom: 3px solid #f39c12;
            padding-bottom: 8px;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar ul li {
            margin-bottom: 10px;
        }
        .sidebar ul li a {
            color: #2c3e50;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 12px;
            border-radius: 8px;
            transition: all 0.2s ease;
            font-size: 0.95rem;
        }
        .sidebar ul li a:hover {
            background: #fef9e7;
            color: #f39c12;
            transform: translateX(4px);
        }
        .sidebar ul li a i {
            color: #f39c12;
            font-size: 0.8rem;
            width: 18px;
            text-align: center;
        }
        .search-section {
            background: #fff;
            border-radius: 16px;
            padding: 28px 24px;
            margin: 36px 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
        }
        .search-section form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .search-section input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border: 2px solid #ddd;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
        }
        .search-section input[type="text"]:focus {
            border-color: #f39c12;
        }
        .search-section button {
            padding: 14px 32px;
            background: #f39c12;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-section button:hover {
            background: #e67e22;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(243, 156, 18, 0.35);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 40px 0;
        }
        @media(max-width:768px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .comment-section,
        .rating-section {
            background: #fff;
            border-radius: 16px;
            padding: 28px 24px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
        }
        .comment-section h3,
        .rating-section h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #0f0c29;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .comment-section h3 i,
        .rating-section h3 i {
            color: #f39c12;
        }
        .comment-section form,
        .rating-section form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .comment-section textarea,
        .comment-section input,
        .rating-section select,
        .rating-section input {
            padding: 12px 16px;
            border: 2px solid #e0e0e0;
            border-radius: 10px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.3s;
            font-family: inherit;
        }
        .comment-section textarea:focus,
        .comment-section input:focus,
        .rating-section select:focus,
        .rating-section input:focus {
            border-color: #f39c12;
        }
        .comment-section textarea {
            resize: vertical;
            min-height: 100px;
        }
        .comment-section button,
        .rating-section button {
            padding: 12px 28px;
            background: #0f0c29;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            align-self: flex-start;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .comment-section button:hover,
        .rating-section button:hover {
            background: #302b63;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(15, 12, 41, 0.25);
        }
        friend-link {
            display: block;
            background: #fff;
            border-radius: 16px;
            padding: 28px 24px;
            margin: 40px 0 20px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
        }
        friend-link h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #0f0c29;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        friend-link .friend-list {
            display: flex;
            flex-wrap: wrap;
            gap: 14px 28px;
        }
        friend-link .friend-list a {
            color: #2c3e50;
            text-decoration: none;
            padding: 6px 14px;
            border-radius: 20px;
            background: #f5f7fa;
            transition: all 0.25s ease;
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        friend-link .friend-list a:hover {
            background: #f39c12;
            color: #fff;
            transform: translateY(-2px);
        }
        footer {
            background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
            color: #ccc;
            padding: 40px 0 28px;
            margin-top: 40px;
            border-top: 4px solid #f39c12;
        }
        footer .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 30px;
        }
        footer .footer-col h4 {
            color: #f39c12;
            font-size: 1.1rem;
            margin-bottom: 12px;
            font-weight: 600;
        }
        footer .footer-col ul {
            list-style: none;
            padding: 0;
        }
        footer .footer-col ul li {
            margin-bottom: 6px;
        }
        footer .footer-col ul li a {
            color: #bbb;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        footer .footer-col ul li a:hover {
            color: #f39c12;
        }
        footer .copyright {
            width: 100%;
            text-align: center;
            padding-top: 24px;
            margin-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.9rem;
            color: #999;
        }
        footer .copyright i {
            color: #e74c3c;
        }
        @media(max-width:768px) {
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 6px;
                padding: 16px 0 8px;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
                margin-top: 12px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li a {
                padding: 10px 12px;
                border-radius: 8px;
                width: 100%;
            }
            .nav-menu li a:hover {
                background: rgba(243, 156, 18, 0.1);
            }
            .article-body h1 {
                font-size: 1.9rem;
            }
            .article-body h2 {
                font-size: 1.6rem;
            }
            .article-body h3 {
                font-size: 1.3rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 14px;
            }
            .sidebar {
                position: static;
                max-height: none;
            }
        }
        @media(max-width:480px) {
            .article-body h1 {
                font-size: 1.6rem;
            }
            .article-body h2 {
                font-size: 1.35rem;
            }
            .feedback-grid {
                gap: 18px;
            }
            .search-section form {
                flex-direction: column;
            }
            .search-section button {
                justify-content: center;
            }
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #f0f0f0;
        }
        ::-webkit-scrollbar-thumb {
            background: #b0b0b0;
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #888;
        }