* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #6a3de8;
            --primary-light: #8b6cf2;
            --secondary: #f59e0b;
            --accent: #ef4444;
            --bg: #f8f7fc;
            --bg-card: #ffffff;
            --text: #1e1b2e;
            --text-light: #5b5570;
            --border: #e2ddf0;
            --radius: 20px;
            --shadow: 0 8px 32px rgba(106, 61, 232, 0.10);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s;
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--bg-card);
            border-bottom: 2px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            flex-wrap: wrap;
            gap: 10px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            -webkit-text-fill-color: var(--secondary);
            font-size: 1.6rem;
        }
        .my-logo:hover {
            opacity: 0.85;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .main-nav {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .main-nav a {
            padding: 8px 18px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--bg);
            color: var(--text-light);
            transition: all .2s;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: var(--primary);
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid var(--border);
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 12px;
            cursor: pointer;
            color: var(--text);
            transition: all .2s;
        }
        .hamburger:hover {
            background: var(--bg);
        }
        #nav-toggle {
            display: none;
        }
        #nav-toggle:checked~.nav-wrapper .main-nav {
            display: flex;
            flex-direction: column;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: var(--bg-card);
            padding: 20px;
            border-bottom: 2px solid var(--border);
            box-shadow: var(--shadow);
            border-radius: 0 0 var(--radius) var(--radius);
            gap: 6px;
            z-index: 99;
        }
        #nav-toggle:checked~.nav-wrapper .main-nav a {
            width: 100%;
            text-align: center;
        }
        .breadcrumb {
            padding: 14px 0 6px;
            font-size: 0.85rem;
            color: var(--text-light);
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            list-style: none;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 8px;
            color: var(--primary-light);
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        .hero {
            padding: 40px 0 30px;
            text-align: center;
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .hero p {
            font-size: 1.15rem;
            max-width: 760px;
            margin: 0 auto 20px;
            color: var(--text-light);
        }
        .hero .meta {
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .hero .meta i {
            margin-right: 6px;
            color: var(--secondary);
        }
        .search-bar {
            max-width: 560px;
            margin: 24px auto 10px;
            display: flex;
            border: 2px solid var(--border);
            border-radius: 60px;
            overflow: hidden;
            background: var(--bg-card);
            transition: border .2s;
        }
        .search-bar:focus-within {
            border-color: var(--primary);
        }
        .search-bar input {
            flex: 1;
            border: none;
            padding: 14px 22px;
            font-size: 1rem;
            outline: none;
            background: transparent;
            font-family: var(--font);
        }
        .search-bar button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 0 28px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background .2s;
        }
        .search-bar button:hover {
            background: var(--primary-light);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 20px 0 50px;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 22px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            margin-bottom: 24px;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 14px;
            color: var(--primary);
            border-bottom: 2px solid var(--bg);
            padding-bottom: 10px;
        }
        .sidebar-card ul {
            list-style: none;
        }
        .sidebar-card ul li {
            padding: 6px 0;
            border-bottom: 1px solid var(--bg);
        }
        .sidebar-card ul li a {
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card ul li a i {
            color: var(--secondary);
            font-size: 0.75rem;
        }
        .main-content h2 {
            font-size: 2rem;
            font-weight: 800;
            margin: 48px 0 16px;
            color: var(--primary);
            border-left: 6px solid var(--secondary);
            padding-left: 18px;
        }
        .main-content h2:first-of-type {
            margin-top: 0;
        }
        .main-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 32px 0 12px;
            color: var(--text);
        }
        .main-content h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 24px 0 10px;
            color: var(--text-light);
        }
        .main-content p {
            margin-bottom: 18px;
            color: var(--text-light);
        }
        .main-content p strong {
            color: var(--text);
            font-weight: 700;
        }
        .main-content ul,
        .main-content ol {
            margin: 0 0 20px 24px;
            color: var(--text-light);
        }
        .main-content li {
            margin-bottom: 8px;
        }
        .main-content .feature-box {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px 28px;
            margin: 28px 0;
            border-left: 6px solid var(--secondary);
            box-shadow: var(--shadow);
        }
        .main-content .feature-box h4 {
            margin-top: 0;
        }
        .content-image {
            margin: 32px 0;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .content-image figcaption {
            padding: 12px 16px;
            font-size: 0.85rem;
            color: var(--text-light);
            background: var(--bg-card);
            border-top: 1px solid var(--border);
            text-align: center;
        }
        .interaction-area {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin: 48px 0 30px;
        }
        .interaction-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .interaction-card h3 {
            font-size: 1.3rem;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .interaction-card h3 i {
            color: var(--secondary);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            margin: 12px 0 16px;
            cursor: pointer;
            direction: rtl;
            justify-content: flex-end;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #ddd;
            transition: color .2s;
            cursor: pointer;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: var(--secondary);
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .interaction-card input,
        .interaction-card textarea {
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: 14px;
            font-family: var(--font);
            font-size: 0.95rem;
            transition: border .2s;
            background: var(--bg);
        }
        .interaction-card input:focus,
        .interaction-card textarea:focus {
            border-color: var(--primary);
            outline: none;
        }
        .interaction-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .interaction-card .btn {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 24px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background .2s, transform .1s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .interaction-card .btn:hover {
            background: var(--primary-light);
            transform: scale(0.98);
        }
        friend-link {
            display: block;
        }
        .friend-links-list {
            list-style: none;
        }
        .friend-links-list li {
            padding: 6px 0;
        }
        .friend-links-list li a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
        }
        .friend-links-list li a i {
            color: var(--secondary);
            font-size: 0.7rem;
        }
        .site-footer {
            background: var(--text);
            color: #ccc;
            padding: 40px 0 20px;
            margin-top: 40px;
            border-radius: var(--radius) var(--radius) 0 0;
        }
        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 16px;
        }
        .site-footer a {
            color: #aaa;
        }
        .site-footer a:hover {
            color: var(--secondary);
        }
        .site-footer .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid #333;
            margin-top: 24px;
            font-size: 0.85rem;
            color: #888;
        }
        .site-footer .copyright strong {
            color: #ccc;
        }
        @media (max-width: 968px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .site-footer .container {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: inline-block;
            }
            .main-nav {
                display: none;
                width: 100%;
            }
            .nav-wrapper {
                position: relative;
                flex-wrap: wrap;
            }
            #nav-toggle:checked~.nav-wrapper .main-nav {
                display: flex;
            }
            .header-inner {
                padding: 10px 0;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .interaction-area {
                grid-template-columns: 1fr;
            }
            .site-footer .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .main-content h2 {
                font-size: 1.6rem;
            }
            .main-content h3 {
                font-size: 1.3rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .interaction-card {
                padding: 18px;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--primary);
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: 0 4px 20px rgba(106, 61, 232, 0.3);
            transition: all .2s;
            border: none;
            cursor: pointer;
            z-index: 50;
        }
        .scroll-top:hover {
            background: var(--primary-light);
            transform: translateY(-4px);
        }
        @media (max-width: 600px) {
            .scroll-top {
                width: 40px;
                height: 40px;
                font-size: 1rem;
                bottom: 16px;
                right: 16px;
            }
        }