*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #6c3fc5;
            --primary-dark: #4a2a8a;
            --primary-light: #8f6ae0;
            --secondary: #ff6b35;
            --accent: #00d4aa;
            --bg: #f8f7fc;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-light: #555570;
            --border: #e0dcec;
            --radius: 14px;
            --shadow: 0 8px 32px rgba(108, 63, 197, 0.10);
            --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            --max-width: 1200px;
            --header-bg: linear-gradient(135deg, #1a1a2e 0%, #2d1b69 100%);
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        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);
        }
        .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: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #ff6b35, #ffd166);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #ff6b35;
            font-size: 1.8rem;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 1.5rem;
            padding: 6px 14px;
            border-radius: 10px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: rgba(255, 255, 255, 0.85);
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.92rem;
            transition: all 0.2s;
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }
        .breadcrumb {
            padding: 14px 0 8px;
            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: #aaa;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        .breadcrumb .current {
            color: var(--text-light);
            font-weight: 500;
        }
        .hero {
            padding: 40px 0 30px;
            text-align: center;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, #6c3fc5, #ff6b35);
            -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;
            color: var(--text-light);
            max-width: 780px;
            margin: 0 auto 20px;
        }
        .hero-meta {
            display: flex;
            justify-content: center;
            gap: 28px;
            flex-wrap: wrap;
            font-size: 0.92rem;
            color: var(--text-light);
        }
        .hero-meta i {
            margin-right: 6px;
            color: var(--primary);
        }
        section {
            padding: 32px 0;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 36px 0 18px;
            color: var(--primary-dark);
            border-left: 5px solid var(--secondary);
            padding-left: 18px;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin: 28px 0 14px;
            color: var(--primary);
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 20px 0 10px;
            color: var(--text);
        }
        p {
            margin-bottom: 16px;
            font-size: 1.05rem;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 32px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            margin-bottom: 28px;
            transition: transform 0.2s;
        }
        .card:hover {
            transform: translateY(-2px);
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin: 24px 0;
        }
        .step-list {
            counter-reset: step;
            list-style: none;
            padding: 0;
        }
        .step-list li {
            counter-increment: step;
            padding: 14px 18px 14px 60px;
            position: relative;
            margin-bottom: 14px;
            background: var(--bg-card);
            border-radius: 12px;
            border: 1px solid var(--border);
            font-size: 1.02rem;
        }
        .step-list li::before {
            content: counter(step);
            position: absolute;
            left: 14px;
            top: 14px;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.95rem;
        }
        .tip-box {
            background: #eef9ff;
            border-left: 5px solid var(--accent);
            padding: 18px 24px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
        }
        .warning-box {
            background: #fff7ed;
            border-left: 5px solid var(--secondary);
            padding: 18px 24px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        th,
        td {
            padding: 14px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border);
        }
        th {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f4f0fc;
        }
        .feature-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .img-placeholder {
            background: linear-gradient(135deg, #e0dcec, #f0ecf8);
            border-radius: var(--radius);
            padding: 40px 20px;
            text-align: center;
            color: var(--text-light);
            font-size: 1.1rem;
            margin: 24px 0;
            border: 2px dashed var(--border);
            min-height: 220px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }
        .img-placeholder i {
            font-size: 3.2rem;
            color: var(--primary-light);
            margin-bottom: 12px;
        }
        .img-placeholder img {
            width: 100%;
            max-width: 700px;
            border-radius: var(--radius);
            object-fit: cover;
        }
        .search-box {
            display: flex;
            max-width: 560px;
            margin: 20px auto;
            border-radius: 60px;
            overflow: hidden;
            box-shadow: 0 4px 16px rgba(108, 63, 197, 0.12);
            border: 2px solid var(--border);
            transition: border-color 0.2s;
            background: var(--bg-card);
        }
        .search-box:focus-within {
            border-color: var(--primary);
        }
        .search-box input {
            flex: 1;
            border: none;
            padding: 16px 24px;
            font-size: 1rem;
            outline: none;
            background: transparent;
            color: var(--text);
        }
        .search-box button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 0 28px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-box button:hover {
            background: var(--primary-dark);
        }
        .comment-area,
        .rating-area {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 32px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            margin: 24px 0;
        }
        .comment-area h3,
        .rating-area h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 6px;
            font-size: 0.95rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: 10px;
            font-size: 1rem;
            font-family: var(--font);
            transition: border-color 0.2s;
            background: var(--bg);
            color: var(--text);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--primary);
            outline: none;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border: none;
            border-radius: 60px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
        }
        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(108, 63, 197, 0.25);
        }
        .btn-secondary {
            background: var(--secondary);
        }
        .btn-secondary:hover {
            background: #e55a2b;
        }
        .star-rating {
            display: flex;
            gap: 8px;
            font-size: 2rem;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating i {
            color: #ddd;
            transition: color 0.2s;
        }
        .star-rating i:hover,
        .star-rating i:hover~i {
            color: #ffb703;
        }
        .star-rating input {
            display: none;
        }
        .star-rating input:checked~i {
            color: #ffb703;
        }
        .site-footer {
            background: var(--header-bg);
            color: rgba(255, 255, 255, 0.85);
            padding: 40px 0 24px;
            margin-top: 48px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
        }
        .footer-inner h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 12px;
        }
        .footer-inner a {
            color: rgba(255, 255, 255, 0.7);
            display: block;
            padding: 4px 0;
            font-size: 0.95rem;
        }
        .footer-inner a:hover {
            color: var(--secondary);
        }
        friend-link {
            display: block;
            padding: 12px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 20px;
            font-size: 0.95rem;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            color: rgba(255, 255, 255, 0.7);
        }
        friend-link a:hover {
            color: var(--secondary);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 20px;
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(26, 26, 46, 0.98);
                padding: 16px 0 20px;
                border-radius: 0 0 var(--radius) var(--radius);
                margin-top: 8px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 12px 24px;
                width: 100%;
                text-align: center;
            }
            .breadcrumb {
                font-size: 0.78rem;
            }
            .card {
                padding: 20px;
            }
            .comment-area,
            .rating-area {
                padding: 20px;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .hero-meta {
                gap: 14px;
                font-size: 0.82rem;
            }
            .step-list li {
                padding: 12px 14px 12px 52px;
                font-size: 0.95rem;
            }
            .step-list li::before {
                width: 28px;
                height: 28px;
                font-size: 0.8rem;
                left: 10px;
                top: 12px;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .search-box {
                flex-direction: column;
                border-radius: 16px;
            }
            .search-box input {
                padding: 14px 18px;
            }
            .search-box button {
                padding: 14px;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .container {
                padding: 0 14px;
            }
        }
        .nav-menu {
            transition: all 0.3s ease;
        }
        .mt-2 {
            margin-top: 20px;
        }
        .mb-2 {
            margin-bottom: 20px;
        }
        .text-center {
            text-align: center;
        }
        .badge {
            display: inline-block;
            background: var(--primary-light);
            color: #fff;
            padding: 2px 14px;
            border-radius: 60px;
            font-size: 0.8rem;
            font-weight: 600;
        }