*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: #f0f2f5;
            color: #2c3e50;
            line-height: 1.75;
            font-size: 16px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 60%, #0f3460 100%);
            color: #fff;
            position: sticky;
            top: 0;
            z-index: 999;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #f39c12;
            text-decoration: none;
            letter-spacing: 1px;
            transition: color .3s;
        }
        .my-logo:hover {
            color: #e67e22;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 24px;
        }
        .main-nav ul li a {
            color: #cbd5e1;
            text-decoration: none;
            font-weight: 500;
            transition: color .3s;
            font-size: .92rem;
        }
        .main-nav ul li a:hover {
            color: #f39c12;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
        }
        .breadcrumb-bar {
            background: #fff;
            border-bottom: 1px solid #e2e8f0;
            padding: 10px 0;
            font-size: .85rem;
        }
        .breadcrumb-list {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb-list li+li::before {
            content: "›";
            margin: 0 6px;
            color: #94a3b8;
        }
        .breadcrumb-list a {
            color: #64748b;
            text-decoration: none;
        }
        .breadcrumb-list a:hover {
            color: #f39c12;
        }
        .breadcrumb-list .active {
            color: #334155;
            font-weight: 600;
        }
        .search-section {
            background: linear-gradient(135deg, #f8fafc, #e2e8f0);
            padding: 25px 0;
            border-bottom: 1px solid #e2e8f0;
        }
        .search-form {
            display: flex;
            gap: 10px;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-form input[type="text"] {
            flex: 1;
            padding: 12px 18px;
            border: 2px solid #e2e8f0;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border-color .3s;
        }
        .search-form input[type="text"]:focus {
            border-color: #f39c12;
        }
        .search-form button {
            background: #f39c12;
            border: none;
            padding: 12px 24px;
            border-radius: 30px;
            color: #1a1a2e;
            font-weight: 700;
            cursor: pointer;
            transition: background .3s;
        }
        .search-form button:hover {
            background: #e67e22;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 30px;
            margin: 35px 0 0;
        }
        .article-main {
            background: #fff;
            border-radius: 12px;
            padding: 35px;
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
        }
        .article-main h1 {
            font-size: 2.2rem;
            color: #1a1a2e;
            line-height: 1.3;
            margin-bottom: 10px;
            position: relative;
            padding-bottom: 15px;
            border-bottom: 3px solid #f39c12;
        }
        .article-main h2 {
            font-size: 1.6rem;
            color: #1a1a2e;
            margin-top: 45px;
            margin-bottom: 15px;
            padding-left: 14px;
            border-left: 4px solid #f39c12;
        }
        .article-main h3 {
            font-size: 1.25rem;
            color: #2c3e50;
            margin-top: 28px;
            margin-bottom: 10px;
        }
        .article-main h4 {
            font-size: 1.05rem;
            color: #34495e;
            margin-top: 18px;
            font-weight: 600;
        }
        .article-main p {
            margin-bottom: 16px;
        }
        .article-main ul,
        .article-main ol {
            margin: 0 0 18px 24px;
        }
        .article-main li {
            margin-bottom: 6px;
        }
        .article-main img.roadmap-img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 20px 0;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }
        .article-main .meta-info {
            font-size: .85rem;
            color: #64748b;
            margin-bottom: 20px;
        }
        .article-main a {
            color: #e67e22;
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dashed transparent;
            transition: border-color .3s;
        }
        .article-main a:hover {
            border-bottom-color: #e67e22;
        }
        .highlight-box {
            background: #fef9ef;
            border-left: 4px solid #f39c12;
            padding: 18px 20px;
            margin: 24px 0;
            border-radius: 0 8px 8px 0;
        }
        .info-box {
            background: #f0f7ff;
            border-left: 4px solid #3182ce;
            padding: 18px 20px;
            margin: 24px 0;
            border-radius: 0 8px 8px 0;
        }
        .toc {
            background: #f8fafc;
            border: 1px solid #e2e8f0;
            padding: 20px 24px;
            border-radius: 10px;
            margin: 25px 0;
        }
        .toc h3 {
            margin-bottom: 12px;
            color: #1a1a2e;
        }
        .toc ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .toc ul li {
            margin-bottom: 5px;
            padding-left: 12px;
            border-left: 2px solid transparent;
            transition: border-color .3s;
        }
        .toc ul li:hover {
            border-left-color: #f39c12;
        }
        .toc ul li a {
            color: #475569;
            text-decoration: none;
            font-weight: 500;
        }
        .toc ul li a:hover {
            color: #e67e22;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .sidebar-widget {
            background: #fff;
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
        }
        .sidebar-widget h3 {
            font-size: 1.1rem;
            color: #1a1a2e;
            margin-bottom: 15px;
            border-bottom: 2px solid #f39c12;
            padding-bottom: 8px;
        }
        .sidebar-widget ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-widget ul li {
            margin-bottom: 8px;
        }
        .sidebar-widget ul li a {
            color: #475569;
            text-decoration: none;
            font-weight: 500;
            transition: color .3s;
        }
        .sidebar-widget ul li a:hover {
            color: #e67e22;
        }
        .rating-box {
            text-align: center;
        }
        .rating-stars {
            font-size: 2rem;
            color: #f39c12;
            margin-bottom: 10px;
        }
        .rating-stars .fa-star {
            margin: 0 2px;
            transition: transform .2s;
            cursor: pointer;
        }
        .rating-stars .fa-star:hover {
            transform: scale(1.15);
        }
        .rating-form {
            margin-top: 12px;
        }
        .rating-form select {
            padding: 8px 12px;
            border-radius: 6px;
            border: 1px solid #cbd5e1;
            margin-right: 8px;
        }
        .rating-form button {
            padding: 8px 20px;
            background: #f39c12;
            border: none;
            border-radius: 6px;
            color: #1a1a2e;
            font-weight: 600;
            cursor: pointer;
            transition: background .3s;
        }
        .rating-form button:hover {
            background: #e67e22;
        }
        .comment-form textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #cbd5e1;
            border-radius: 8px;
            font-family: inherit;
            font-size: .9rem;
            margin-bottom: 10px;
            resize: vertical;
            min-height: 80px;
        }
        .comment-form input {
            width: 100%;
            padding: 10px;
            border: 1px solid #cbd5e1;
            border-radius: 8px;
            margin-bottom: 10px;
            font-family: inherit;
        }
        .comment-form button {
            padding: 10px 24px;
            background: #2c3e50;
            border: none;
            border-radius: 8px;
            color: #fff;
            font-weight: 600;
            cursor: pointer;
            transition: background .3s;
        }
        .comment-form button:hover {
            background: #1a1a2e;
        }
        .last-updated {
            display: inline-block;
            background: #f0f2f5;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: .85rem;
            color: #475569;
            margin-top: 12px;
        }
        .site-footer {
            background: #1a1a2e;
            color: #94a3b8;
            padding: 50px 0 30px;
            margin-top: 50px;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .footer-col {
            margin-bottom: 30px;
        }
        .footer-col h3 {
            color: #e2e8f0;
            margin-bottom: 15px;
            font-size: 1.1rem;
        }
        .footer-col a {
            color: #94a3b8;
            text-decoration: none;
        }
        .footer-col a:hover {
            color: #f39c12;
        }
        friend-link {
            display: block;
            padding: 15px 20px;
            background: #16213e;
            border-radius: 8px;
            margin: 15px 0;
            color: #94a3b8;
            font-size: .9rem;
        }
        friend-link a {
            color: #f39c12;
            text-decoration: none;
            margin: 0 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 25px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 25px;
            font-size: .85rem;
            color: #64748b;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
                width: 100%;
            }
            .main-nav.show {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
                padding: 10px 0;
            }
            .main-nav ul li {
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
            .main-nav ul li a {
                display: block;
                padding: 12px 0;
            }
            .hamburger {
                display: block;
            }
            .header-inner {
                padding: 12px 15px;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .article-main {
                padding: 20px;
            }
            .article-main h1 {
                font-size: 1.6rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
        }
        @media (min-width: 769px) {
            .main-nav {
                display: block !important;
            }
        }