:root {
            --primary: #7c3aed;
            --primary-light: #a78bfa;
            --pink: #ec4899;
            --pale: #fdf4ff;
            --dark: #1e1b4b;
            --grey: #6b7280;
            --light-grey: #f3f4f6;
            --white: #ffffff;
            --border-radius: 16px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --max-width: 1200px;
            --transition: all 0.3s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            background: var(--pale);
            color: var(--dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--pink);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
        li {
            margin-bottom: 0.3rem;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary) 0%, var(--pink) 100%);
            padding: 1.2rem 0;
            box-shadow: 0 2px 15px rgba(124, 58, 237, 0.3);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--white);
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
            letter-spacing: -0.5px;
        }
        .my-logo:hover {
            color: #fbbf24;
            text-decoration: none;
        }
        .my-logo i {
            margin-right: 0.3rem;
            font-size: 1.5rem;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 1rem;
            margin: 0;
            padding: 0;
        }
        .nav-list a {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 8px;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.9rem;
        }
        .nav-list a:hover {
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
            border-radius: 8px;
            transition: var(--transition);
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.15);
        }
        .breadcrumb {
            background: #fff;
            padding: 0.7rem 0;
            border-bottom: 1px solid #e5e7eb;
            font-size: 0.85rem;
        }
        .breadcrumb .container {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--grey);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: #d1d5db;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        .hero {
            padding: 3rem 0 2rem;
            background: linear-gradient(135deg, #fdf4ff 0%, #fce7f3 50%, #ede9fe 100%);
            text-align: center;
        }
        .hero h1 {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 1rem;
            line-height: 1.2;
            font-weight: 900;
        }
        .hero p {
            font-size: 1.1rem;
            color: var(--grey);
            max-width: 700px;
            margin: 0 auto 2rem;
        }
        .hero-badges {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .badge {
            background: var(--white);
            padding: 0.5rem 1.2rem;
            border-radius: 50px;
            box-shadow: var(--shadow);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .badge i {
            color: var(--pink);
        }
        .main-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 2.5rem;
            padding: 2.5rem 0;
        }
        .main-content {
            background: var(--white);
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar {
            background: var(--white);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            height: fit-content;
            position: sticky;
            top: 90px;
        }
        .sidebar-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 1rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid var(--primary-light);
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar ul li {
            margin-bottom: 0.5rem;
        }
        .sidebar ul li a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.4rem 0;
            border-radius: 6px;
            color: var(--dark);
            font-size: 0.9rem;
        }
        .sidebar ul li a:hover {
            color: var(--pink);
            background: var(--pale);
            padding-left: 0.5rem;
        }
        .main-content h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: 2.5rem 0 1rem;
            border-bottom: 3px solid var(--primary-light);
            padding-bottom: 0.5rem;
            line-height: 1.3;
        }
        .main-content h3 {
            font-size: 1.5rem;
            color: var(--dark);
            margin: 2rem 0 0.8rem;
            line-height: 1.3;
        }
        .main-content h3 i {
            color: var(--pink);
            margin-right: 0.4rem;
        }
        .main-content h4 {
            font-size: 1.15rem;
            color: #374151;
            margin: 1.5rem 0 0.5rem;
            font-weight: 700;
        }
        .main-content p {
            margin-bottom: 1rem;
            color: #374151;
            font-size: 1.05rem;
        }
        .main-content .hl {
            background: linear-gradient(120deg, #fce7f3 0%, #fdf4ff 100%);
            padding: 0 0.2rem;
            border-radius: 4px;
            font-weight: 700;
            color: var(--primary);
        }
        .table-wrapper {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
        }
        thead th {
            background: var(--primary);
            color: #fff;
            padding: 0.9rem 1rem;
            text-align: left;
            font-weight: 600;
            font-size: 0.9rem;
        }
        tbody td {
            padding: 0.8rem 1rem;
            border-bottom: 1px solid #f3e8ff;
            font-size: 0.95rem;
        }
        tbody tr:hover {
            background: #faf5ff;
        }
        .callout {
            background: #f0fdf4;
            border-left: 4px solid #22c55e;
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .callout.warning {
            background: #fffbeb;
            border-left-color: #f59e0b;
        }
        .callout i {
            margin-right: 0.5rem;
        }
        .form-card {
            background: var(--pale);
            border-radius: var(--border-radius);
            padding: 2rem;
            margin: 2.5rem 0;
            border: 1px solid #f3e8ff;
        }
        .form-card h3 {
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.4rem;
            font-size: 0.95rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #e5e7eb;
            border-radius: 10px;
            font-family: inherit;
            font-size: 0.95rem;
            transition: var(--transition);
            background: #fff;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
        }
        .btn {
            background: linear-gradient(135deg, var(--primary), var(--pink));
            color: #fff;
            padding: 0.8rem 1.8rem;
            border: none;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(236, 72, 153, 0.4);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-start;
            gap: 0.2rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #d1d5db;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #fbbf24;
        }
        .star-rating input:checked~label {
            color: #fbbf24;
        }
        .site-footer {
            background: var(--dark);
            color: #c4b5fd;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-title {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 1rem;
            font-weight: 700;
        }
        .footer-links {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            color: #c4b5fd;
            font-size: 0.9rem;
        }
        .footer-links a:hover {
            color: #fbbf24;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 12px;
            padding: 1rem 1.2rem;
            font-size: 0.9rem;
            line-height: 2;
            margin-bottom: 1.5rem;
        }
        friend-link a {
            color: #e9d5ff;
            margin-right: 0.5rem;
            padding: 0.2rem 0.5rem;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 6px;
            white-space: nowrap;
        }
        friend-link a:hover {
            background: var(--primary);
            color: #fff;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.85rem;
            color: #9ca3af;
        }
        @media (max-width: 768px) {
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--primary);
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                padding: 1rem;
                border-radius: 0 0 16px 16px;
                box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
            }
            .nav-list.open {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .main-layout {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .main-content {
                padding: 1.5rem;
            }
            .main-content h2 {
                font-size: 1.5rem;
            }
            .main-content h3 {
                font-size: 1.25rem;
            }
            .badge {
                font-size: 0.8rem;
            }
        }
        @media (max-width: 480px) {
            .header-inner {
                flex-wrap: nowrap;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .hero {
                padding: 2rem 0 1rem;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .form-card {
                padding: 1.2rem;
            }
        }