*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            background: #f0f2f5;
            color: #1a1a2e;
            line-height: 1.7;
        }
        a {
            color: #e8590c;
            text-decoration: none;
        }
        a:hover {
            color: #ad3b02;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header.site-header {
            background: #1a1a2e;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 15px rgba(0, 0, 0, .3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 12px 0;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #FF9933;
            text-decoration: none;
            letter-spacing: 1px;
        }
        .my-logo i {
            margin-right: 6px;
            color: #138808;
        }
        .my-logo span {
            font-weight: 400;
            font-size: 1rem;
            display: block;
            color: #ccc;
        }
        .main-nav {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #fff;
            padding: 8px 14px;
            border-radius: 20px;
            font-size: .9rem;
            background: rgba(255, 255, 255, .08);
            transition: all .3s;
        }
        .main-nav a:hover {
            background: #FF9933;
            color: #1a1a2e;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: #fff;
            padding: 8px 0;
            border-bottom: 1px solid #e9ecef;
            font-size: .85rem;
        }
        .breadcrumb a {
            color: #666;
        }
        .breadcrumb a:hover {
            color: #e8590c;
        }
        .breadcrumb .sep {
            margin: 0 6px;
            color: #aaa;
        }
        .hero {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            padding: 50px 0 30px;
            text-align: center;
            color: #fff;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            margin-bottom: 10px;
            color: #FF9933;
        }
        .hero p {
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto 15px;
            color: #ddd;
        }
        .hero-meta {
            font-size: .85rem;
            color: #aaa;
            margin-top: 10px;
        }
        .hero-meta i {
            margin-right: 4px;
        }
        .content-wrap {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
            margin: 30px 0;
        }
        article.main-content {
            background: #fff;
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, .06);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .widget {
            background: #fff;
            border-radius: 16px;
            padding: 20px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, .05);
        }
        .widget h3 {
            font-size: 1.2rem;
            margin-bottom: 12px;
            border-bottom: 3px solid #FF9933;
            padding-bottom: 8px;
        }
        .widget ul {
            list-style: none;
        }
        .widget ul li {
            margin: 8px 0;
        }
        .widget ul li a {
            color: #333;
        }
        .widget ul li a:hover {
            color: #e8590c;
        }
        .search-box {
            display: flex;
            gap: 8px;
        }
        .search-box input {
            flex: 1;
            padding: 10px 14px;
            border: 2px solid #e9ecef;
            border-radius: 30px;
            font-size: .9rem;
            outline: none;
            transition: border-color .3s;
        }
        .search-box input:focus {
            border-color: #FF9933;
        }
        .search-box button {
            background: #FF9933;
            border: none;
            border-radius: 50%;
            width: 44px;
            height: 44px;
            color: #fff;
            font-size: 1rem;
            cursor: pointer;
            transition: transform .3s;
        }
        .search-box button:hover {
            transform: scale(1.1);
        }
        .main-content h2 {
            font-size: 1.8rem;
            color: #1a1a2e;
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #FF9933;
            position: relative;
        }
        .main-content h2 i {
            color: #FF9933;
            margin-right: 8px;
        }
        .main-content h3 {
            font-size: 1.3rem;
            color: #0f3460;
            margin: 20px 0 10px;
        }
        .main-content h4 {
            font-size: 1.1rem;
            color: #333;
            margin: 15px 0 8px;
        }
        .main-content p {
            margin-bottom: 15px;
            text-align: justify;
        }
        .main-content ul,
        .main-content ol {
            margin: 0 0 20px 25px;
        }
        .main-content li {
            margin-bottom: 6px;
        }
        .main-content img {
            max-width: 100%;
            border-radius: 12px;
            margin: 20px 0;
            box-shadow: 0 4px 15px rgba(0, 0, 0, .1);
        }
        .highlight-box {
            background: #fff9f0;
            border-left: 4px solid #FF9933;
            padding: 15px 20px;
            border-radius: 0 8px 8px 0;
            margin: 20px 0;
        }
        .highlight-box i {
            color: #FF9933;
            margin-right: 8px;
        }
        .table-responsive {
            overflow-x: auto;
            margin-bottom: 20px;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: .9rem;
        }
        table th,
        table td {
            border: 1px solid #e9ecef;
            padding: 10px 12px;
            text-align: left;
        }
        table th {
            background: #1a1a2e;
            color: #fff;
        }
        table tr:nth-child(even) {
            background: #f8f9fa;
        }
        .step-list {
            margin: 20px 0;
        }
        .step-item {
            display: flex;
            gap: 15px;
            margin-bottom: 20px;
        }
        .step-num {
            background: #FF9933;
            color: #fff;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            flex-shrink: 0;
        }
        .step-content {
            flex: 1;
        }
        .step-content h4 {
            margin-top: 0;
        }
        .rating-box {
            display: flex;
            gap: 8px;
            flex-direction: column;
            margin: 15px 0;
        }
        .rating-stars {
            display: flex;
            gap: 4px;
            font-size: 1.5rem;
            color: #ccc;
        }
        .rating-stars i.active {
            color: #FF9933;
        }
        .comment-form textarea {
            width: 100%;
            padding: 12px;
            border: 2px solid #e9ecef;
            border-radius: 10px;
            font-family: inherit;
            font-size: .9rem;
            resize: vertical;
            min-height: 80px;
            outline: none;
            transition: border-color .3s;
        }
        .comment-form textarea:focus {
            border-color: #FF9933;
        }
        .btn {
            background: #FF9933;
            color: #1a1a2e;
            border: none;
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: transform .3s, box-shadow .3s;
            display: inline-block;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(255, 153, 51, .3);
        }
        .site-footer {
            background: #1a1a2e;
            color: #aaa;
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 20px;
        }
        .site-footer h4 {
            color: #fff;
            margin-bottom: 15px;
            font-size: 1.1rem;
        }
        .site-footer a {
            color: #ccc;
        }
        .site-footer a:hover {
            color: #FF9933;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, .05);
            padding: 15px;
            border-radius: 10px;
            margin: 15px 0;
            font-size: .9rem;
        }
        friend-link a {
            display: inline-block;
            margin: 4px;
            padding: 4px 10px;
            background: rgba(255, 153, 51, .1);
            border-radius: 15px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, .1);
        }
        .back-to-top {
            position: fixed;
            bottom: 20px;
            right: 20px;
            background: #FF9933;
            color: #fff;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            box-shadow: 0 4px 15px rgba(0, 0, 0, .2);
            z-index: 999;
            transition: transform .3s;
        }
        .back-to-top:hover {
            transform: translateY(-4px);
        }
        @media(max-width:992px) {
            .content-wrap {
                grid-template-columns: 1fr;
            }
            .sidebar {
                order: 2;
            }
        }
        @media(max-width:768px) {
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                padding: 10px 0;
            }
            .main-nav.open {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .header-inner {
                padding: 10px 0;
            }
            .main-content {
                padding: 15px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }