:root {
            --primary: #8b5cf6;
            --primary-light: #a78bfa;
            --primary-dark: #7c3aed;
            --accent-pink: #ec4899;
            --accent-cyan: #06b6d4;
            --accent-amber: #f59e0b;
            --accent-emerald: #10b981;
            --accent-rose: #fb7185;
            --bg-dark: #0f0a1a;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-hover: rgba(255, 255, 255, 0.08);
            --bg-elevated: rgba(255, 255, 255, 0.06);
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-glow: rgba(139, 92, 246, 0.3);
            --text-primary: #ffffff;
            --text-secondary: rgba(255, 255, 255, 0.75);
            --text-muted: rgba(255, 255, 255, 0.5);
            --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.15);
            /* ── 客服 UI 变量（来自 kf.css） ── */
            --pink:    #f96c9f;
            --pink-l:  #ffb3cc;
            --pink-d:  #e04580;
            --orange:  #f39800;
            --bg:      #0f0a1a;
            --border:  rgba(255, 255, 255, 0.08);
            --white:   #ffffff;
            --text:    #ffffff;
            --text-2:  rgba(255, 255, 255, 0.75);
            --text-3:  rgba(255, 255, 255, 0.45);
            --shadow2: 0 8px 32px rgba(0, 0, 0, 0.3);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-tap-highlight-color: transparent;
            touch-action: manipulation;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--bg-dark);
            color: var(--text-primary);
            min-height: 100vh;
            overflow-x: hidden;
            line-height: 1.6;
        }
        
        /* ===== 动态背景 ===== */
        .bg-layer {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            pointer-events: none;
        }
        
        .bg-gradient {
            background: 
                radial-gradient(ellipse 100% 60% at 50% 0%, rgba(139, 92, 246, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse 80% 50% at 80% 30%, rgba(236, 72, 153, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse 60% 40% at 20% 70%, rgba(6, 182, 212, 0.06) 0%, transparent 50%),
                var(--bg-dark);
        }
        
        .orb {
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            opacity: 0.35;
            animation: float 20s ease-in-out infinite;
        }
        
        .orb-1 {
            width: 500px;
            height: 500px;
            background: var(--primary);
            top: -150px;
            right: -100px;
        }
        
        .orb-2 {
            width: 400px;
            height: 400px;
            background: var(--accent-pink);
            bottom: 20%;
            left: -150px;
            animation-delay: -7s;
        }
        
        .orb-3 {
            width: 300px;
            height: 300px;
            background: var(--accent-cyan);
            top: 40%;
            right: 10%;
            animation-delay: -12s;
        }
        
        @keyframes float {
            0%, 100% { transform: translate(0, 0) scale(1); }
            33% { transform: translate(30px, -30px) scale(1.05); }
            66% { transform: translate(-20px, 20px) scale(0.95); }
        }
        
        /* ===== 顶部导航 ===== */
        .top-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 16px;
            background: linear-gradient(to bottom, rgba(15, 10, 26, 0.9) 0%, transparent 100%);
            backdrop-filter: blur(10px);
        }
        
        .nav-btn {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-secondary);
            font-size: 0.85em;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
        }
        
        .nav-btn:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(139, 92, 246, 0.4);
            color: var(--text-primary);
        }
        
        .nav-btn.primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent-pink) 100%);
            border: none;
            color: white;
            box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
        }
        
        .nav-btn.primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
        }
        
        /* ===== 主容器 ===== */
        .container {
            position: relative;
            z-index: 10;
            max-width: 1200px;
            margin: 0 auto;
            padding: 70px 20px 40px;
        }
        
        /* ===== Hero区域 ===== */
        .hero {
            text-align: center;
            padding: 30px 0 40px;
        }
        
        .brand-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(139, 92, 246, 0.15);
            border: 1px solid rgba(139, 92, 246, 0.3);
            border-radius: 30px;
            margin-bottom: 24px;
            backdrop-filter: blur(10px);
        }
        
        .brand-badge i {
            color: var(--primary-light);
            font-size: 0.9em;
        }
        
        .brand-badge span {
            color: var(--primary-light);
            font-size: 0.8em;
            font-weight: 600;
            letter-spacing: 2px;
        }
        
        .hero-title {
            font-size: clamp(1.8em, 6vw, 2.8em);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #ffffff 0%, #c4b5fd 50%, #f0abfc 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .hero-subtitle {
            color: var(--text-secondary);
            font-size: clamp(0.95em, 2.5vw, 1.15em);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        
        /* ===== 信任徽章 ===== */
        .trust-badges {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 40px;
        }
        
        .trust-badge {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: 20px;
            font-size: 0.8em;
            color: var(--text-muted);
        }
        
        .trust-badge i {
            color: var(--accent-emerald);
            font-size: 0.9em;
        }
        
        /* ===== 数据展示卡片 ===== */
        .stats-section {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            margin-bottom: 50px;
        }
        
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: 20px;
            padding: 24px 16px;
            text-align: center;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        
        .stat-card:hover {
            transform: translateY(-4px);
            background: var(--bg-card-hover);
            border-color: var(--border-glow);
        }
        
        
        .stat-card:nth-child(1) { --card-color: var(--primary); }
        .stat-card:nth-child(2) { --card-color: var(--accent-cyan); }
        .stat-card:nth-child(3) { --card-color: var(--accent-emerald); }
        
        .stat-icon {
            width: 44px;
            height: 44px;
            margin: 0 auto 12px;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(139, 92, 246, 0.05) 100%);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3em;
            color: var(--primary-light);
        }
        
        .stat-card:nth-child(2) .stat-icon {
            background: linear-gradient(135deg, rgba(6, 182, 212, 0.2) 0%, rgba(6, 182, 212, 0.05) 100%);
            color: var(--accent-cyan);
        }
        
        .stat-card:nth-child(3) .stat-icon {
            background: linear-gradient(135deg, rgba(16, 185, 129, 0.2) 0%, rgba(16, 185, 129, 0.05) 100%);
            color: var(--accent-emerald);
        }
        
        .stat-number {
            font-size: 0.8em;
            font-weight: 700;
            margin-bottom: 4px;
            background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .stat-label {
            color: var(--text-muted);
            font-size: 0.8em;
        }
        
        /* ===== 测评卡片 ===== */
        .section-header {
            text-align: center;
            margin-bottom: 32px;
        }
        
        .section-title {
            font-size: 1.4em;
            font-weight: 600;
            margin-bottom: 8px;
        }
        
        .section-title span {
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent-pink) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .section-desc {
            color: var(--text-muted);
            font-size: 0.9em;
        }
        
        .assessments-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
            margin-bottom: 50px;
        }
        
        .assessment-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: 24px;
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            cursor: pointer;
            text-decoration: none;
            color: inherit;
            position: relative;
            overflow: visible;
        }
        
        
        .assessment-card:hover {
            transform: translateY(-4px);
            background: var(--bg-card-hover);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
        }
        
        
        .assessment-card:active {
            transform: scale(0.98);
        }
        
        .assessment-header {
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }
        
        .assessment-icon {
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, var(--card-color) 0%, rgba(255,255,255,0.1) 100%);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6em;
            flex-shrink: 0;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
        }
        
        .assessment-info {
            flex: 1;
            min-width: 0;
        }
        
        .assessment-title {
            font-size: 1.15em;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        
        .assessment-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        
        .tag {
            padding: 4px 10px;
            background: rgba(139, 92, 246, 0.1);
            border: 1px solid rgba(139, 92, 246, 0.2);
            border-radius: 12px;
            font-size: 0.7em;
            color: var(--primary-light);
        }

        .badge-hot {
            position: absolute;
            top: -8px;
            right: 16px;
            padding: 4px 10px;
            background: linear-gradient(135deg, #ef4444, #f97316);
            color: #fff;
            font-size: 0.68em;
            font-weight: 700;
            border-radius: 6px;
            letter-spacing: 0.5px;
            z-index: 10;
            box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
            animation: badge-pulse 1.5s ease-in-out infinite;
        }

        @keyframes badge-pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        .assessment-desc {
            color: var(--text-secondary);
            font-size: 0.9em;
            line-height: 1.6;
        }
        
        .assessment-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 16px;
            border-top: 1px solid var(--border-subtle);
        }
        
        .assessment-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-muted);
            font-size: 0.85em;
        }
        
        .assessment-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        
        .assessment-price {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .price-current {
            font-size: 1.3em;
            font-weight: 700;
            background: linear-gradient(135deg, var(--card-color) 0%, var(--accent-pink) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .price-original {
            font-size: 0.85em;
            color: var(--text-muted);
            text-decoration: line-through;
        }
        
        .assessment-arrow {
            width: 36px;
            height: 36px;
            background: var(--bg-elevated);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all 0.3s ease;
        }
        
        .assessment-card:hover .assessment-arrow {
            background: var(--primary);
            color: white;
            transform: translateX(4px);
        }
        
        /* 卡片颜色主题 */
        .assessment-card[data-theme="purple"] { --card-color: #8b5cf6; }
        .assessment-card[data-theme="pink"] { --card-color: #ec4899; }
        .assessment-card[data-theme="cyan"] { --card-color: #06b6d4; }
        .assessment-card[data-theme="amber"] { --card-color: #f59e0b; }
        .assessment-card[data-theme="emerald"] { --card-color: #10b981; }
        .assessment-card[data-theme="indigo"] { --card-color: #6366f1; }
        
        /* ===== 特色服务 ===== */
        .features-section {
            margin-bottom: 50px;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }
        
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: 20px;
            padding: 24px 16px;
            text-align: center;
            transition: all 0.3s ease;
        }
        
        .feature-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glow);
            transform: translateY(-4px);
        }
        
        .feature-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 12px;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(236, 72, 153, 0.1) 100%);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3em;
            color: var(--primary-light);
        }
        
        .feature-title {
            font-weight: 600;
            font-size: 0.95em;
            margin-bottom: 6px;
        }
        
        .feature-desc {
            color: var(--text-muted);
            font-size: 0.8em;
            line-height: 1.5;
        }
        
        /* ===== CTA区域 ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(236, 72, 153, 0.1) 100%);
            border: 1px solid rgba(139, 92, 246, 0.2);
            border-radius: 24px;
            padding: 32px 24px;
            text-align: center;
            margin-bottom: 40px;
        }
        
        .cta-title {
            font-size: 1.3em;
            font-weight: 600;
            margin-bottom: 12px;
        }
        
        .cta-desc {
            color: var(--text-secondary);
            font-size: 0.9em;
            margin-bottom: 24px;
        }
        
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent-pink) 100%);
            border: none;
            border-radius: 30px;
            color: white;
            font-size: 1em;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
        }
        
        .cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 30px rgba(139, 92, 246, 0.4);
        }
        
        /* ===== 页脚 ===== */
        .footer {
            text-align: center;
            padding: 24px 0;
            border-top: 1px solid var(--border-subtle);
        }
        
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 16px;
        }
        
        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.85em;
            transition: color 0.2s ease;
        }
        
        .footer-links a:hover {
            color: var(--primary-light);
        }
        
        .footer-copy {
            color: var(--text-muted);
            font-size: 0.8em;
        }
        /* ===== Loading ===== */
        .loading-page {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--bg-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 9999;
            transition: opacity 0.5s ease;
        }
        
        .loading-page.hidden {
            opacity: 0;
            pointer-events: none;
        }
        
        .loader {
            width: 48px;
            height: 48px;
            border: 3px solid var(--border-subtle);
            border-top-color: var(--primary);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
        
        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        
        /* ===== 动画类 ===== */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .fade-in-delay-1 { transition-delay: 0.1s; }
        .fade-in-delay-2 { transition-delay: 0.2s; }
        .fade-in-delay-3 { transition-delay: 0.3s; }
        .fade-in-delay-4 { transition-delay: 0.4s; }
        
        /* ===== 响应式 ===== */
        @media (min-width: 640px) {
            .container {
                padding: 80px 24px 60px;
            }
            
            .assessments-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .features-grid {
                grid-template-columns: repeat(4, 1fr);
            }
            
            .stats-section {
                gap: 20px;
            }
            
            .stat-card {
                padding: 32px 24px;
            }
            
            .stat-number {
                font-size: 2.2em;
            }
        }
        
        @media (min-width: 1024px) {
            .assessments-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        
        /* 减少动画偏好 */
        @media (prefers-reduced-motion: reduce) {
            .fade-in {
                opacity: 1;
                transform: none;
                transition: none;
            }
            
            .orb {
                animation: none;
            }
        }

/* 禁止移动端缩放 - iOS兼容 */
html {
    touch-action: manipulation;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

body {
    touch-action: manipulation;
    -webkit-overflow-scrolling: touch;
}

/* 允许输入框选择文字 */
input, textarea {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

/* 禁止双击缩放 */
* {
    touch-action: manipulation;
}

/* iOS Safari 特定修复 */
@supports (-webkit-touch-callout: none) {
    html {
        -webkit-text-size-adjust: 100%;
    }
}