*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #2563eb;
            --accent: #f59e0b;
            --dark: #0f172a;
            --light: #f8fafc;
            --gray: #64748b;
            --green: #22c55e;
            --radius: 12px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: var(--light);
            color: var(--dark);
            line-height: 1.7;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 16px;
        }
        header {
            background: linear-gradient(135deg, var(--dark) 0%, #1e293b 60%, var(--primary) 100%);
            color: #fff;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, .25);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 14px 0;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--accent);
            text-decoration: none;
            letter-spacing: -0.5px;
            text-transform: uppercase;
            background: linear-gradient(45deg, var(--accent), #fbbf24);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            transition: transform .2s;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .nav-links {
            display: flex;
            gap: 24px;
            list-style: none;
            flex-wrap: wrap;
        }
        .nav-links li a {
            color: #e2e8f0;
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9rem;
            transition: color .2s, border-bottom .2s;
            border-bottom: 2px solid transparent;
            padding-bottom: 4px;
        }
        .nav-links li a:hover {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: rgba(255, 255, 255, .08);
            padding: 8px 16px;
            font-size: .8rem;
            border-radius: 6px;
            display: inline-block;
            margin: 6px 0;
        }
        .breadcrumb a {
            color: #93c5fd;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #cbd5e1;
            margin: 0 6px;
        }
        .hero {
            background: linear-gradient(120deg, #1e3a8a, #0f172a);
            color: #fff;
            padding: 48px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--green), var(--primary));
        }
        .hero h1 {
            font-size: 2.8rem;
            margin-bottom: 12px;
            letter-spacing: -1px;
        }
        .hero p {
            font-size: 1.1rem;
            color: #cbd5e1;
            max-width: 680px;
            margin: 0 auto;
        }
        .hero .last-update {
            display: inline-block;
            margin-top: 16px;
            background: rgba(255, 255, 255, .12);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: .8rem;
            color: #fbbf24;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
            padding: 40px 0;
        }
        .article-body {
            background: #fff;
            border-radius: var(--radius);
            padding: 40px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, .04);
        }
        .article-body h2 {
            font-size: 1.9rem;
            margin: 40px 0 16px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--accent);
            position: relative;
            color: var(--dark);
        }
        .article-body h2 i {
            margin-right: 10px;
            color: var(--primary);
        }
        .article-body h3 {
            font-size: 1.4rem;
            margin: 28px 0 12px;
            color: #1e293b;
            padding-left: 12px;
            border-left: 4px solid var(--primary);
        }
        .article-body h4 {
            font-size: 1.1rem;
            margin: 18px 0 8px;
            color: #334155;
            font-weight: 700;
        }
        .article-body p {
            margin-bottom: 16px;
            color: #475569;
        }
        .article-body ul,
        .article-body ol {
            margin: 12px 0 20px 24px;
            color: #475569;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body strong {
            color: var(--dark);
        }
        .article-body a {
            color: var(--primary);
            font-weight: 600;
            text-decoration: none;
            border-bottom: 1px dashed var(--primary);
            transition: all .2s;
        }
        .article-body a:hover {
            border-bottom-style: solid;
            background: #eff6ff;
        }
        .article-body img {
            max-width: 100%;
            border-radius: var(--radius);
            margin: 20px 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, .1);
        }
        .article-body hr {
            border: none;
            height: 1px;
            background: #e2e8f0;
            margin: 32px 0;
        }
        .article-body blockquote {
            background: #f1f5f9;
            border-left: 4px solid var(--primary);
            padding: 16px 20px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
            font-style: italic;
            color: #334155;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .widget {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, .04);
        }
        .widget h3 {
            font-size: 1.1rem;
            margin-bottom: 12px;
            color: var(--dark);
            border-bottom: 2px solid var(--accent);
            padding-bottom: 8px;
        }
        .widget ul {
            list-style: none;
        }
        .widget ul li {
            margin-bottom: 10px;
        }
        .widget ul li a {
            text-decoration: none;
            color: #334155;
            font-weight: 500;
            font-size: .92rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color .2s, padding-left .2s;
        }
        .widget ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .widget ul li a i {
            color: var(--accent);
            font-size: .8rem;
            width: 20px;
        }
        .search-box {
            display: flex;
            margin-top: 12px;
        }
        .search-box input {
            flex: 1;
            padding: 10px 14px;
            border: 2px solid #e2e8f0;
            border-radius: 8px 0 0 8px;
            font-size: .9rem;
            outline: none;
        }
        .search-box input:focus {
            border-color: var(--primary);
        }
        .search-box button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 0 16px;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1rem;
            transition: background .2s;
        }
        .search-box button:hover {
            background: #1d4ed8;
        }
        .score-form {
            margin-top: 12px;
        }
        .star-rating {
            display: flex;
            gap: 4px;
            font-size: 1.4rem;
            cursor: pointer;
            color: var(--accent);
        }
        .star-rating i {
            transition: transform .2s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .comment-form textarea {
            width: 100%;
            padding: 12px;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            margin-top: 12px;
            font-family: inherit;
            font-size: .9rem;
            resize: vertical;
            min-height: 80px;
        }
        .comment-form input {
            width: 100%;
            padding: 10px 14px;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            margin-top: 8px;
            font-size: .9rem;
        }
        .submit-btn {
            background: var(--green);
            color: #fff;
            border: none;
            padding: 10px 24px;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            margin-top: 12px;
            transition: background .2s;
        }
        .submit-btn:hover {
            background: #16a34a;
        }
        .friend-link-tag {
            display: block;
            font-weight: bold;
            margin-bottom: 8px;
            color: var(--primary);
        }
        footer {
            background: var(--dark);
            color: #cbd5e1;
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        footer .container {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 32px;
        }
        footer h4 {
            color: #fff;
            margin-bottom: 12px;
        }
        footer a {
            color: #93c5fd;
            text-decoration: none;
        }
        footer a:hover {
            text-decoration: underline;
        }
        footer .copyright {
            grid-column: 1/-1;
            text-align: center;
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px solid #334155;
            font-size: .85rem;
            color: #94a3b8;
        }
        @media(max-width:992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
                padding: 24px 0;
            }
            .sidebar {
                order: 2;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                padding: 12px 0;
                gap: 12px;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .article-body {
                padding: 24px;
            }
            footer .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media(max-width:576px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero {
                padding: 32px 0;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .header-top {
                padding: 10px 0;
            }
            .breadcrumb {
                max-width: 100%;
                overflow-x: auto;
                white-space: nowrap;
            }
        }
        .table-of-contents {
            background: #f8fafc;
            border: 1px solid #e2e8f0;
            border-radius: var(--radius);
            padding: 20px 24px;
            margin: 24px 0;
        }
        .table-of-contents h3 {
            margin-top: 0;
        }
        .table-of-contents ol {
            counter-reset: toc;
            list-style: none;
            padding-left: 0;
        }
        .table-of-contents ol li {
            counter-increment: toc;
            margin-bottom: 6px;
        }
        .table-of-contents ol li::before {
            content: counter(toc) ". ";
            color: var(--primary);
            font-weight: 700;
            margin-right: 4px;
        }
        .table-of-contents a {
            text-decoration: none;
            color: #334155;
            font-weight: 500;
        }
        .table-of-contents a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .info-box {
            background: #eff6ff;
            border-left: 4px solid var(--primary);
            padding: 14px 18px;
            border-radius: 0 8px 8px 0;
            margin: 20px 0;
        }
        .info-box i {
            margin-right: 8px;
            color: var(--primary);
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .stat-card {
            background: #f8fafc;
            border-radius: var(--radius);
            padding: 20px;
            text-align: center;
            border: 1px solid #e2e8f0;
        }
        .stat-card .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
        }
        .stat-card .label {
            font-size: .85rem;
            color: var(--gray);
            margin-top: 4px;
        }