*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --bg: #f6f9fc;
            --white: #ffffff;
            --primary: #1a2a6c;
            --secondary: #b21f1f;
            --accent: #fdbb2d;
            --text: #1e293b;
            --text-light: #475569;
            --border: #e2e8f0;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            --radius: 16px;
            --radius-sm: 10px;
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-bg: linear-gradient(135deg, #0f0c29, #1a2a6c, #24243e);
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            min-height: 100vh;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--header-bg);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(to right, var(--accent), #ff8a5c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 10px rgba(253, 187, 45, 0.2);
        }
        .my-logo i {
            margin-right: 8px;
            -webkit-text-fill-color: initial;
            color: var(--accent);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 10px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .navbar {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .navbar a {
            color: rgba(255, 255, 255, 0.85);
            padding: 6px 16px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all 0.25s;
            white-space: nowrap;
        }
        .navbar a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            transform: translateY(-1px);
        }
        .navbar a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .breadcrumb {
            background: var(--white);
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 12px;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--secondary);
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(145deg, #f0f4ff, #ffffff);
            padding: 50px 0 40px;
            border-bottom: 1px solid var(--border);
        }
        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .hero-text h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .hero-text h1 span {
            background: linear-gradient(to right, var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-text p {
            font-size: 1.15rem;
            color: var(--text-light);
            max-width: 540px;
            margin-bottom: 20px;
        }
        .hero-stats {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 16px;
        }
        .hero-stats span {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            background: var(--white);
            padding: 8px 18px;
            border-radius: 30px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .hero-stats i {
            color: var(--secondary);
            margin-right: 6px;
        }
        .hero-image {
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            background: #eef2ff;
        }
        .hero-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            transition: transform 0.4s;
        }
        .hero-image:hover img {
            transform: scale(1.02);
        }
        .main-content {
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        .content-article {
            background: var(--white);
            border-radius: var(--radius);
            padding: 40px 36px;
            box-shadow: var(--shadow);
        }
        .content-article h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--primary);
            margin: 40px 0 16px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--accent);
        }
        .content-article h2:first-of-type {
            margin-top: 0;
        }
        .content-article h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--primary);
            margin: 28px 0 12px;
        }
        .content-article h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text);
            margin: 20px 0 8px;
        }
        .content-article p {
            margin-bottom: 16px;
            color: var(--text);
        }
        .content-article p b,
        .content-article p strong {
            color: var(--primary);
        }
        .content-article ul,
        .content-article ol {
            margin: 12px 0 20px 24px;
        }
        .content-article li {
            margin-bottom: 8px;
        }
        .content-article .highlight-box {
            background: #f0f4ff;
            border-left: 4px solid var(--accent);
            padding: 20px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
        }
        .content-article .highlight-box i {
            color: var(--accent);
            margin-right: 8px;
        }
        .content-article .tip-card {
            background: linear-gradient(135deg, #fef9e7, #fdf2e9);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            margin: 20px 0;
            border: 1px solid #fce4c8;
        }
        .content-table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 0.95rem;
        }
        .content-article table th,
        .content-article table td {
            padding: 12px 16px;
            border: 1px solid var(--border);
            text-align: left;
        }
        .content-article table th {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .content-article table tr:nth-child(even) {
            background: #f8fafc;
        }
        .content-article .img-wrapper {
            margin: 28px 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .content-article .img-wrapper figcaption {
            padding: 12px 16px;
            background: #f1f5f9;
            font-size: 0.9rem;
            color: var(--text-light);
            text-align: center;
            font-style: italic;
        }
        .content-article .link-list {
            background: #f8fafc;
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            margin: 20px 0;
            border: 1px solid var(--border);
        }
        .content-article .link-list li {
            list-style: none;
            padding: 6px 0;
        }
        .content-article .link-list li::before {
            content: "▸ ";
            color: var(--secondary);
            font-weight: 700;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 24px 20px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--accent);
        }
        .sidebar-card ul {
            list-style: none;
        }
        .sidebar-card ul li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border);
        }
        .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .sidebar-card ul li a {
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card ul li a i {
            color: var(--secondary);
            font-size: 0.8rem;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin: 16px 0;
        }
        .search-form input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border 0.25s;
            background: var(--bg);
        }
        .search-form input:focus {
            border-color: var(--primary);
        }
        .search-form button {
            padding: 12px 24px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: var(--secondary);
            transform: translateY(-2px);
        }
        .interaction-section {
            margin-top: 40px;
            padding-top: 32px;
            border-top: 2px solid var(--border);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .interaction-card {
            background: #f8fafc;
            border-radius: var(--radius-sm);
            padding: 24px 28px;
            border: 1px solid var(--border);
        }
        .interaction-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .interaction-card h3 i {
            color: var(--accent);
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .interaction-card form input,
        .interaction-card form textarea,
        .interaction-card form select {
            padding: 10px 14px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            font-family: var(--font);
            outline: none;
            transition: border 0.2s;
            background: var(--white);
        }
        .interaction-card form input:focus,
        .interaction-card form textarea:focus,
        .interaction-card form select:focus {
            border-color: var(--primary);
        }
        .interaction-card form textarea {
            min-height: 80px;
            resize: vertical;
        }
        .interaction-card form button {
            padding: 12px 20px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .interaction-card form button:hover {
            background: var(--secondary);
            transform: translateY(-2px);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: #ddd;
            cursor: pointer;
            direction: rtl;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            transition: color 0.2s, transform 0.15s;
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label,
        .rating-stars input:checked~label {
            color: var(--accent);
            transform: scale(1.1);
        }
        .site-footer {
            background: var(--header-bg);
            color: rgba(255, 255, 255, 0.85);
            padding: 40px 0 24px;
            margin-top: 40px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        .footer-brand .my-logo {
            font-size: 1.5rem;
            display: inline-block;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.95rem;
            opacity: 0.8;
            max-width: 360px;
        }
        .footer-links h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 14px;
            color: var(--accent);
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links ul li {
            padding: 4px 0;
        }
        .footer-links ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .footer-links ul li a:hover {
            color: var(--accent);
        }
        friend-link {
            display: block;
            grid-column: 1 / -1;
            padding: 20px 0 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 12px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
        }
        friend-link a {
            color: rgba(255, 255, 255, 0.8);
            margin: 0 8px;
        }
        friend-link a:hover {
            color: var(--accent);
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 16px;
            font-size: 0.85rem;
            opacity: 0.7;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 868px) {
            .hero-content {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .hero-text p {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-stats {
                justify-content: center;
            }
            .hero-text h1 {
                font-size: 2rem;
            }
            .nav-toggle {
                display: block;
            }
            .navbar {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 12px;
                gap: 4px;
            }
            .navbar.open {
                display: flex;
            }
            .navbar a {
                padding: 10px 16px;
                border-radius: 8px;
                background: rgba(255, 255, 255, 0.05);
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .footer-brand p {
                margin: 0 auto;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .content-article {
                padding: 24px 18px;
            }
            .content-article h2 {
                font-size: 1.5rem;
            }
            .content-article h3 {
                font-size: 1.2rem;
            }
        }
        @media (max-width: 480px) {
            .hero-text h1 {
                font-size: 1.6rem;
            }
            .hero-stats {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
            .content-article table {
                font-size: 0.8rem;
            }
            .content-article table th,
            .content-article table td {
                padding: 8px 10px;
            }
        }