*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #e74c3c;
            --primary-dark: #c0392b;
            --secondary: #f39c12;
            --accent: #2ecc71;
            --bg: #fafafa;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-light: #555;
            --border: #e0e0e0;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --radius: 16px;
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .site-header {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: #fff;
            padding: 0 1.5rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            text-decoration: none;
        }
        .my-logo i {
            color: var(--secondary);
            font-size: 2rem;
        }
        .my-logo span {
            background: linear-gradient(to right, var(--secondary), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.25rem;
            z-index: 1001;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            list-style: none;
        }
        .nav-menu a {
            color: rgba(255, 255, 255, 0.85);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }
        .nav-menu a i {
            margin-right: 0.4rem;
        }
        .breadcrumb-wrap {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0.75rem 1.5rem;
            font-size: 0.85rem;
            color: var(--text-light);
            background: #f5f5f5;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb-wrap a {
            color: var(--primary);
        }
        .breadcrumb-wrap span {
            color: var(--text-light);
        }
        .breadcrumb-wrap .sep {
            margin: 0 0.5rem;
            color: #aaa;
        }
        .main-wrap {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 2rem 1.5rem 3rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        .content-area {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 90px;
            align-self: start;
        }
        .widget {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
            margin-bottom: 1.5rem;
            border: 1px solid var(--border);
        }
        .widget h3 {
            font-size: 1.1rem;
            margin-bottom: 1rem;
            border-bottom: 3px solid var(--primary);
            padding-bottom: 0.5rem;
            display: inline-block;
        }
        .widget ul {
            list-style: none;
        }
        .widget ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0f0f0;
        }
        .widget ul li:last-child {
            border-bottom: none;
        }
        .widget ul li a {
            color: var(--text);
            font-weight: 500;
            font-size: 0.92rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .widget ul li a:hover {
            color: var(--primary);
        }
        .widget ul li a i {
            color: var(--primary);
            font-size: 0.8rem;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
        }
        .search-form input {
            flex: 1;
            padding: 0.7rem 1rem;
            border: 2px solid var(--border);
            border-radius: 10px;
            font-size: 0.95rem;
            outline: none;
            transition: border var(--transition);
        }
        .search-form input:focus {
            border-color: var(--primary);
        }
        .search-form button {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 10px;
            padding: 0 1.2rem;
            font-size: 1rem;
            cursor: pointer;
            transition: background var(--transition);
        }
        .search-form button:hover {
            background: var(--primary-dark);
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            cursor: pointer;
            color: #ddd;
            transition: color var(--transition);
            margin: 0.5rem 0 1rem;
        }
        .rating-stars i.active {
            color: var(--secondary);
        }
        .rating-stars i:hover,
        .rating-stars i.hover {
            color: var(--secondary);
        }
        .comment-form textarea {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid var(--border);
            border-radius: 10px;
            font-family: var(--font);
            font-size: 0.95rem;
            resize: vertical;
            min-height: 80px;
            outline: none;
            transition: border var(--transition);
            background: #fafafa;
        }
        .comment-form textarea:focus {
            border-color: var(--primary);
        }
        .comment-form .btn-row {
            display: flex;
            gap: 0.8rem;
            margin-top: 0.7rem;
            flex-wrap: wrap;
        }
        .btn {
            padding: 0.6rem 1.5rem;
            border: none;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: background var(--transition), transform 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn:active {
            transform: scale(0.97);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: #27ae60;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--border);
            color: var(--text);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .content-area h1 {
            font-size: 2.6rem;
            line-height: 1.2;
            margin-bottom: 0.5rem;
            color: var(--text);
            font-weight: 900;
        }
        .content-area h1 i {
            color: var(--secondary);
        }
        .content-area .meta {
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            align-items: center;
        }
        .content-area .meta i {
            margin-right: 0.3rem;
        }
        .content-area .last-updated {
            background: #fff3cd;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.8rem;
            color: #856404;
        }
        .content-area h2 {
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--primary);
            color: var(--text);
            font-weight: 800;
        }
        .content-area h2 i {
            color: var(--primary);
            margin-right: 0.5rem;
        }
        .content-area h3 {
            font-size: 1.35rem;
            margin: 1.5rem 0 0.8rem;
            color: #2c3e50;
            font-weight: 700;
        }
        .content-area h3 i {
            color: var(--secondary);
            margin-right: 0.4rem;
        }
        .content-area h4 {
            font-size: 1.1rem;
            margin: 1.2rem 0 0.5rem;
            color: #34495e;
            font-weight: 600;
        }
        .content-area p {
            margin-bottom: 1rem;
            color: #2d2d3a;
        }
        .content-area ul,
        .content-area ol {
            margin: 0.5rem 0 1.2rem 1.8rem;
        }
        .content-area li {
            margin-bottom: 0.4rem;
        }
        .content-area strong {
            color: #1a1a2e;
        }
        .content-area blockquote {
            border-left: 5px solid var(--primary);
            background: #fef9f0;
            padding: 1rem 1.5rem;
            margin: 1.2rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #444;
        }
        .content-area blockquote cite {
            display: block;
            margin-top: 0.5rem;
            font-style: normal;
            font-weight: 600;
            color: var(--primary);
        }
        .feature-img {
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 1.5rem 0;
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            background: #eee;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fdf2f2 0%, #fff8e1 100%);
            border-radius: var(--radius);
            padding: 1.5rem 2rem;
            border: 1px solid #f5c6cb;
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
        }
        .highlight-box h4 {
            margin-top: 0;
            color: var(--primary);
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        .table-wrap table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-card);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .table-wrap th,
        .table-wrap td {
            padding: 0.8rem 1rem;
            text-align: left;
            border-bottom: 1px solid var(--border);
            font-size: 0.95rem;
        }
        .table-wrap th {
            background: var(--text);
            color: #fff;
            font-weight: 600;
        }
        .table-wrap tr:last-child td {
            border-bottom: none;
        }
        .table-wrap tr:hover td {
            background: #f9f9f9;
        }
        .tip-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 1.2rem 1.5rem;
            box-shadow: var(--shadow);
            border-left: 5px solid var(--accent);
            margin: 1.2rem 0;
            transition: transform var(--transition);
        }
        .tip-card:hover {
            transform: translateY(-2px);
        }
        .tip-card h4 {
            margin: 0 0 0.3rem;
            color: var(--accent);
        }
        .link-list-inline {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin: 1rem 0;
            padding: 0;
            list-style: none;
        }
        .link-list-inline li a {
            background: #f0f0f0;
            padding: 0.3rem 1rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text);
            transition: background var(--transition), color var(--transition);
            display: inline-block;
        }
        .link-list-inline li a:hover {
            background: var(--primary);
            color: #fff;
        }
        friend-link {
            display: block;
        }
        friend-link a {
            display: block;
            padding: 0.5rem 0;
            border-bottom: 1px solid #f0f0f0;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text);
        }
        friend-link a:last-child {
            border-bottom: none;
        }
        friend-link a:hover {
            color: var(--primary);
        }
        friend-link a i {
            margin-right: 0.5rem;
            color: var(--primary);
            font-size: 0.8rem;
        }
        .site-footer {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: rgba(255, 255, 255, 0.85);
            padding: 2.5rem 1.5rem 1.5rem;
            margin-top: 2rem;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .footer-inner h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 1rem;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 0.5rem;
            display: inline-block;
        }
        .footer-inner p {
            font-size: 0.9rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-inner a {
            color: var(--secondary);
        }
        .footer-inner a:hover {
            color: #fff;
        }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 2rem auto 0;
            padding-top: 1.2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom strong {
            color: #fff;
        }
        @media (max-width: 1024px) {
            .main-wrap {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .sidebar .widget {
                margin-bottom: 0;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 60px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.4rem;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: #1a1a2e;
                flex-direction: column;
                align-items: flex-start;
                padding: 5rem 2rem 2rem;
                gap: 0.8rem;
                transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
                z-index: 999;
            }
            .nav-menu.open {
                right: 0;
            }
            .nav-menu a {
                font-size: 1.1rem;
                padding: 0.6rem 1rem;
                width: 100%;
                border-radius: 10px;
            }
            .nav-menu a i {
                width: 1.8rem;
            }
            .content-area h1 {
                font-size: 1.8rem;
            }
            .content-area h2 {
                font-size: 1.4rem;
            }
            .content-area h3 {
                font-size: 1.15rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .breadcrumb-wrap {
                font-size: 0.75rem;
                padding: 0.5rem 1rem;
            }
            .main-wrap {
                padding: 1.2rem 1rem 2rem;
            }
            .rating-stars {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 480px) {
            .content-area h1 {
                font-size: 1.5rem;
            }
            .content-area .meta {
                font-size: 0.8rem;
                gap: 0.6rem;
            }
            .btn {
                padding: 0.5rem 1rem;
                font-size: 0.8rem;
            }
            .search-form input {
                font-size: 0.85rem;
                padding: 0.5rem 0.8rem;
            }
        }
        .fade-up {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .schema-hidden {
            display: none;
        }