/* 云服务器页面 - 企业级商务设计 */

/* 高级CSS变量系统 - 企业级商务版 */
:root {
    /* 主色系 - 企业级商务蓝调 */
    --primary-blue: #1e40af;
    --primary-light: #3b82f6;
    --primary-dark: #1e3a8a;
    --secondary-blue: #2563eb;
    --accent-cyan: #0ea5e9;
    --accent-purple: #6366f1;
    
    /* 企业级渐变系统 */
    --gradient-primary: linear-gradient(135deg, #1e40af 0%, #2563eb 100%);
    --gradient-secondary: linear-gradient(135deg, #0ea5e9 0%, #1e40af 100%);
    --gradient-hero: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.95) 0%, rgba(248,250,252,0.9) 100%);
    --gradient-premium: linear-gradient(135deg, #1e40af 0%, #1e3a8a 50%, #1d4ed8 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0.05) 100%);
    --gradient-neon: linear-gradient(90deg, #00d4ff, #0066ff);
    
    /* 文字颜色 */
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --text-light: #a0aec0;
    
    /* 背景色 */
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-dark: #1a202c;
    
    /* 阴影系统 - 简化版 */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.1);
    --shadow-xl: 0 8px 24px rgba(0,0,0,0.12);
    --shadow-neon: 0 0 12px rgba(0,102,255,0.2);
    --shadow-glow: 0 0 20px rgba(0,212,255,0.15);
    
    /* 边框圆角 - 专业版 */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    
    /* 过渡动画 */
    --transition-fast: all 0.15s ease;
    --transition-normal: all 0.2s ease;
    --transition-slow: all 0.3s ease;
    
    /* 字体系统 - 专业版 */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* 间距系统 - 紧凑版 */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* 字体大小系统 */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    
    /* 行高系统 */
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;
}

/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    line-height: var(--leading-normal);
    color: var(--text-primary);
    background: var(--gradient-hero);
    overflow-x: hidden;
    font-size: var(--text-base);
    font-weight: 400;
    letter-spacing: -0.01em;
}

/* 产品概述 - 英雄区域 - 专业版升级 */
.product-overview {
    min-height: 100vh;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    padding: var(--space-2xl) 0;
}

.product-overview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(0,102,255,0.06) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(99,102,241,0.06) 0%, transparent 50%),
        linear-gradient(135deg, rgba(255,255,255,0.8) 0%, rgba(248,250,252,0.6) 100%);
    z-index: 1;
}

.hero-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 1px 1px, rgba(59,130,246,0.15) 1px, transparent 0);
    background-size: 40px 40px;
    opacity: 0.3;
    z-index: 1;
    animation: pattern-drift 60s linear infinite;
}

@keyframes pattern-drift {
    0% { transform: translate(0, 0); }
    100% { transform: translate(40px, 40px); }
}

.product-overview .container {
    position: relative;
    z-index: 2;
}

/* 英雄徽章 */
.hero-badge {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(59,130,246,0.1) 0%, rgba(99,102,241,0.1) 100%);
    border: 1px solid rgba(59,130,246,0.2);
    border-radius: 50px;
    padding: 8px 16px;
    color: var(--primary-blue);
    font-size: var(--text-sm);
    font-weight: 600;
    backdrop-filter: blur(10px);
    animation: badge-glow 3s ease-in-out infinite;
}

@keyframes badge-glow {
    0%, 100% { box-shadow: 0 0 0 rgba(59,130,246,0.2); }
    50% { box-shadow: 0 0 20px rgba(59,130,246,0.3); }
}

/* 英雄标题 */
.hero-title {
    font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
    font-weight: 700;
    line-height: var(--leading-tight);
    margin-bottom: var(--space-lg);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.highlight-text {
    display: block;
    font-size: 0.75em;
    font-weight: 500;
    background: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: 8px;
}

.product-overview .lead {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    font-weight: 400;
    line-height: var(--leading-relaxed);
    max-width: 600px;
}

/* 核心优势标签 */
.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: var(--space-xl);
}

.tag-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255,255,255,0.9);
    border: 1px solid rgba(59,130,246,0.15);
    border-radius: 20px;
    padding: 6px 12px;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-primary);
    backdrop-filter: blur(10px);
    transition: var(--transition-normal);
}

.tag-item:hover {
    background: rgba(59,130,246,0.1);
    border-color: rgba(59,130,246,0.3);
    transform: translateY(-1px);
}

.tag-item i {
    color: var(--primary-blue);
    font-size: 12px;
}

/* 英雄按钮 */
.hero-actions {
    margin-bottom: var(--space-xl);
}

.hero-btn-primary {
    position: relative;
    overflow: hidden;
    background: var(--gradient-primary);
    border: none;
    color: white;
    font-weight: 600;
    transition: var(--transition-normal);
}

.hero-btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.6s;
}

.hero-btn-primary:hover::before {
    left: 100%;
}

.hero-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59,130,246,0.4);
}

.hero-btn-secondary {
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(10px);
    font-weight: 600;
    transition: var(--transition-normal);
}

.hero-btn-secondary:hover {
    background: var(--primary-blue);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59,130,246,0.3);
}

/* 信任指标 */
.trust-indicators {
    display: flex;
    gap: var(--space-xl);
    flex-wrap: wrap;
}

.trust-item {
    text-align: left;
}

.trust-number {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1;
    margin-bottom: 4px;
}

.trust-label {
    font-size: var(--text-sm);
    color: var(--text-muted);
    font-weight: 500;
}

/* 现代化产品特点卡片 */
.hero-features {
    margin-top: var(--space-xl);
}

.feature-item-modern {
    background: linear-gradient(145deg, rgba(255,255,255,0.95) 0%, rgba(248,250,252,0.85) 100%);
    border: 1px solid rgba(59,130,246,0.1);
    border-radius: 16px;
    padding: var(--space-lg);
    height: 100%;
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    box-shadow: 
        0 4px 16px rgba(0,0,0,0.04),
        0 1px 3px rgba(0,0,0,0.02);
}

.feature-item-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition-normal);
}

.feature-item-modern::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59,130,246,0.03) 0%, transparent 70%);
    opacity: 0;
    transition: var(--transition-normal);
    pointer-events: none;
}

.feature-item-modern:hover::before {
    opacity: 1;
}

.feature-item-modern:hover::after {
    opacity: 1;
}

.feature-item-modern:hover {
    transform: translateY(-8px);
    box-shadow: 
        0 12px 40px rgba(0,0,0,0.1),
        0 4px 16px rgba(59,130,246,0.15),
        0 0 0 1px rgba(59,130,246,0.2);
    border-color: rgba(59,130,246,0.2);
}

.feature-icon-modern {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    position: relative;
    box-shadow: 
        0 8px 16px rgba(59,130,246,0.2),
        0 2px 4px rgba(59,130,246,0.1);
    transition: var(--transition-normal);
}

.feature-icon-modern::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: conic-gradient(from 0deg, #3b82f6, #6366f1, #3b82f6);
    border-radius: 18px;
    opacity: 0;
    transition: var(--transition-normal);
    z-index: -1;
}

.feature-item-modern:hover .feature-icon-modern::before {
    opacity: 1;
    animation: rotate-border 3s linear infinite;
}

.icon-pulse {
    position: absolute;
    inset: -4px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(59,130,246,0.2), rgba(99,102,241,0.2));
    opacity: 0;
    animation: pulse-ring 2s ease-in-out infinite;
}

@keyframes pulse-ring {
    0% {
        opacity: 0.8;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(1.4);
    }
}

@keyframes rotate-border {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.feature-icon-modern i {
    font-size: 24px;
    color: white;
    z-index: 1;
}

.feature-content-modern {
    flex: 1;
}

.feature-content-modern h6 {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    line-height: var(--leading-tight);
}

.feature-content-modern p {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-md);
}

.feature-metric {
    display: flex;
    align-items: baseline;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    border-top: 1px solid rgba(59,130,246,0.1);
}

.metric-value {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--primary-blue);
}

.metric-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
}

/* 服务器动画 - 专业版 */
.product-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 500px;
    position: relative;
    padding: var(--space-lg);
}

/* 增强的云服务器视觉设计 */
.cloud-server-visual-enhanced {
    position: relative;
    width: 100%;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* 背景网格 */
.grid-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(59,130,246,0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59,130,246,0.1) 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.3;
    animation: grid-move 20s linear infinite;
}

@keyframes grid-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(30px, 30px); }
}

/* 主云层设计 */
.main-cloud {
    position: absolute;
    top: 15%;
    left: 50%;
    transform: translateX(-50%);
    width: 240px;
    height: 140px;
    z-index: 2;
}

.cloud-layer {
    position: absolute;
    background: linear-gradient(135deg, rgba(59,130,246,0.15) 0%, rgba(147,197,253,0.08) 100%);
    border-radius: 60px;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(59,130,246,0.15);
    box-shadow: 
        0 8px 32px rgba(59,130,246,0.1),
        inset 0 1px 0 rgba(255,255,255,0.2);
}

.cloud-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 180px;
    background: radial-gradient(ellipse, rgba(59,130,246,0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: cloud-glow-pulse 4s ease-in-out infinite;
}

@keyframes cloud-glow-pulse {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.1); }
}

.cloud-1 {
    width: 80px;
    height: 80px;
    top: 20px;
    left: 10px;
    animation: cloud-float 6s ease-in-out infinite;
}

.cloud-2 {
    width: 100px;
    height: 60px;
    top: 0;
    left: 50px;
    animation: cloud-float 8s ease-in-out infinite 1s;
}

.cloud-3 {
    width: 70px;
    height: 70px;
    top: 30px;
    right: 0;
    animation: cloud-float 7s ease-in-out infinite 2s;
}

/* 服务器集群设计 */
.server-cluster {
    position: relative;
    z-index: 10;
    display: flex;
    gap: 80px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.server-node {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: node-float 6s ease-in-out infinite;
}

.server-node.node-primary {
    animation-delay: 0s;
}

.server-node.node-secondary {
    animation-delay: 2s;
}

.server-node.node-compute {
    animation-delay: 4s;
}

@keyframes node-float {
    0%, 100% { transform: translateY(0px); }
    33% { transform: translateY(-8px); }
    66% { transform: translateY(4px); }
}

.node-container {
    width: 90px;
    height: 90px;
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: 
        0 12px 40px rgba(0,0,0,0.12),
        0 6px 20px rgba(59,130,246,0.15),
        inset 0 2px 4px rgba(255,255,255,0.9),
        inset 0 -2px 4px rgba(0,0,0,0.02);
    border: 2px solid rgba(59,130,246,0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}

.node-container::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: conic-gradient(from 0deg, transparent, rgba(59,130,246,0.3), transparent);
    border-radius: 26px;
    opacity: 0;
    animation: node-scan 3s linear infinite;
}

@keyframes node-scan {
    0% { opacity: 0; transform: rotate(0deg); }
    50% { opacity: 1; }
    100% { opacity: 0; transform: rotate(360deg); }
}

.server-node:hover .node-container {
    transform: translateY(-12px) scale(1.05);
    box-shadow: 
        0 20px 60px rgba(0,0,0,0.2),
        0 10px 30px rgba(59,130,246,0.3),
        inset 0 2px 4px rgba(255,255,255,1);
    border-color: rgba(59,130,246,0.3);
}

.node-rings {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.ring {
    position: absolute;
    border: 1px solid rgba(59,130,246,0.2);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.ring-1 {
    width: 120px;
    height: 120px;
    animation: ring-pulse 3s ease-in-out infinite;
}

.ring-2 {
    width: 150px;
    height: 150px;
    animation: ring-pulse 3s ease-in-out infinite 1.5s;
}

@keyframes ring-pulse {
    0%, 100% { 
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
    50% { 
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(1);
    }
}

.server-node:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 
        0 20px 40px rgba(0,0,0,0.15),
        0 8px 25px rgba(59,130,246,0.2),
        inset 0 1px 0 rgba(255,255,255,1);
}

.server-node i {
    font-size: 2rem;
    color: #3b82f6;
    transition: all 0.3s ease;
}

.node-container i {
    font-size: 32px;
    color: var(--primary-blue);
    transition: all 0.3s ease;
    z-index: 2;
}

.server-node:hover .node-container i {
    color: #1d4ed8;
    transform: scale(1.2);
}

.node-label {
    position: absolute;
    bottom: -35px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(59,130,246,0.15);
    border-radius: 20px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    opacity: 0;
    transition: all 0.3s ease;
}

.server-node:hover .node-label {
    opacity: 1;
    transform: translateX(-50%) translateY(-5px);
}

.node-status {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #ef4444;
    border: 3px solid white;
    box-shadow: 
        0 2px 8px rgba(239,68,68,0.4),
        0 0 0 4px rgba(239,68,68,0.1);
    animation: status-blink 2s ease-in-out infinite;
    z-index: 3;
}

.node-status.active {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    box-shadow: 
        0 2px 8px rgba(16,185,129,0.4),
        0 0 0 4px rgba(16,185,129,0.15);
    animation: status-active-glow 2s ease-in-out infinite;
}

.node-status.standby {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    box-shadow: 
        0 2px 8px rgba(245,158,11,0.4),
        0 0 0 4px rgba(245,158,11,0.15);
    animation: status-standby-pulse 3s ease-in-out infinite;
}

@keyframes status-active-glow {
    0%, 100% { 
        box-shadow: 
            0 2px 8px rgba(16,185,129,0.4),
            0 0 0 4px rgba(16,185,129,0.15);
    }
    50% { 
        box-shadow: 
            0 4px 16px rgba(16,185,129,0.6),
            0 0 0 8px rgba(16,185,129,0.25);
    }
}

@keyframes status-standby-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* 数据连接线 */
.data-connections {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 5;
    pointer-events: none;
}

.connection-line {
    position: absolute;
    height: 3px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(59,130,246,0.3) 20%, 
        rgba(59,130,246,0.8) 50%, 
        rgba(59,130,246,0.3) 80%, 
        transparent 100%);
    border-radius: 2px;
    overflow: hidden;
}

.connection-line::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(59,130,246,0.8) 50%, 
        transparent 100%);
    animation: line-glow 2s ease-in-out infinite;
}

@keyframes line-glow {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

.line-1 {
    top: 50%;
    left: 20%;
    width: 25%;
    transform: translateY(-50%);
}

.line-2 {
    top: 50%;
    right: 20%;
    width: 25%;
    transform: translateY(-50%);
}

.line-3 {
    top: 60%;
    left: 50%;
    width: 20%;
    transform: translateX(-50%) rotate(45deg);
}

.data-packets {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.packet {
    position: absolute;
    width: 8px;
    height: 8px;
    background: rgba(59,130,246,0.8);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    box-shadow: 0 0 10px rgba(59,130,246,0.6);
}

.packet-1 {
    animation: packet-flow 3s linear infinite;
}

.packet-2 {
    animation: packet-flow 3s linear infinite 1.5s;
}

@keyframes packet-flow {
    0% { left: -10px; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { left: 100%; opacity: 0; }
}

/* 性能指标 */
.performance-metrics {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 15;
}

.metric-card {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(59,130,246,0.15);
    border-radius: 12px;
    padding: 12px;
    min-width: 120px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    transition: var(--transition-normal);
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.15);
    border-color: rgba(59,130,246,0.25);
}

.metric-card .metric-icon {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.metric-card .metric-icon i {
    font-size: 10px;
    color: white;
}

.metric-data {
    margin-bottom: 8px;
}

.metric-card .metric-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1;
}

.metric-card .metric-label {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.metric-bar {
    height: 4px;
    background: rgba(59,130,246,0.1);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.bar-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 2s ease-in-out;
    position: relative;
}

.bar-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: bar-shimmer 2s ease-in-out infinite;
}

@keyframes bar-shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Section样式 - 专业版 */
section {
    padding: var(--space-2xl) 0;
    position: relative;
}

.section-title {
    font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    line-height: var(--leading-tight);
    letter-spacing: -0.01em;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
}

.section-subtitle {
    font-size: var(--text-base);
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--space-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: var(--leading-relaxed);
    font-weight: 400;
}

/* 产品规格配置卡片 - 专业版 */
.product-specs {
    background: var(--bg-secondary);
    position: relative;
}

.spec-card {
    background: var(--gradient-card);
    border: 1px solid rgba(0,102,255,0.08);
    border-radius: var(--radius-lg);
    padding: 0;
    height: 100%;
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.spec-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0,102,255,0.2);
}

.spec-header {
    background: var(--gradient-primary);
    color: white;
    padding: var(--space-lg);
    text-align: center;
    position: relative;
}

.spec-icon {
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.15);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
}

.spec-icon i {
    font-size: var(--text-xl);
    color: white;
}

.spec-header h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.spec-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: rgba(255,255,255,0.15);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.spec-content {
    padding: var(--space-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.spec-features {
    margin-bottom: var(--space-lg);
    flex: 1;
}

.spec-feature {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(0,102,255,0.08);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
}

.spec-feature:last-child {
    border-bottom: none;
}

.spec-feature strong {
    color: var(--text-primary);
    font-weight: 500;
}

.spec-price {
    text-align: center;
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: rgba(0,102,255,0.04);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0,102,255,0.08);
}

.price-label {
    display: block;
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.price-value {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1;
}

.price-unit {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-left: var(--space-xs);
}

/* 应用场景卡片 - 专业版 */
.use-cases {
    position: relative;
}

.use-case-card {
    background: var(--gradient-card);
    border: 1px solid rgba(0,102,255,0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    height: 100%;
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
    text-align: center;
    display: flex;
    flex-direction: column;
}

.use-case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-normal);
}

.use-case-card:hover::before {
    transform: scaleX(1);
}

.use-case-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0,102,255,0.2);
}

.use-case-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    position: relative;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.use-case-card:hover .use-case-icon {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.use-case-icon i {
    font-size: var(--text-xl);
    color: white;
}

.use-case-card h5 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    line-height: var(--leading-snug);
}

.use-case-card p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    line-height: var(--leading-relaxed);
    flex: 1;
}

.use-case-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.use-case-features li {
    padding: var(--space-xs) var(--space-sm);
    margin: var(--space-xs) 0;
    background: rgba(0,102,255,0.08);
    color: var(--primary-blue);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: 500;
    display: inline-block;
    margin-right: var(--space-xs);
}

/* 技术架构 - 专业版 */
.tech-architecture {
    background: var(--bg-secondary);
    position: relative;
}

.tech-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 400px;
}

.tech-layers {
    width: 280px;
    height: 320px;
    position: relative;
}

.tech-layer {
    width: 100%;
    height: 60px;
    margin-bottom: var(--space-md);
    position: relative;
    transition: var(--transition-normal);
}

.tech-layer:hover {
    transform: translateX(8px);
}

.layer-content {
    width: 100%;
    height: 100%;
    background: var(--gradient-card);
    border: 1px solid rgba(0,102,255,0.08);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.tech-layer:hover .layer-content {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
    border-color: rgba(0,102,255,0.3);
}

.layer-content i {
    font-size: var(--text-base);
    transition: var(--transition-normal);
}

.layer-content span {
    font-size: var(--text-base);
    font-weight: 500;
    transition: var(--transition-normal);
}

.tech-features {
    padding-left: var(--space-lg);
}

.tech-feature {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    padding: var(--space-lg);
    background: var(--gradient-card);
    border: 1px solid rgba(0,102,255,0.08);
    border-radius: var(--radius-sm);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.tech-feature:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(0,102,255,0.15);
}

.tech-feature-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.tech-feature:hover .tech-feature-icon {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.tech-feature-icon i {
    font-size: var(--text-base);
    color: white;
}

.tech-feature-content h5 {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    line-height: var(--leading-snug);
}

.tech-feature-content p {
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    font-size: var(--text-sm);
    margin: 0;
}

/* 产品优势卡片 - 专业版 */
.advantage-card {
    background: var(--gradient-card);
    border: 1px solid rgba(0,102,255,0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    height: 100%;
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.advantage-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0,102,255,0.2);
}

.advantage-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    position: relative;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    flex-shrink: 0;
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.advantage-icon i {
    font-size: var(--text-xl);
    color: white;
}

.advantage-content {
    position: relative;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.advantage-content h4 {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    line-height: var(--leading-snug);
    flex-shrink: 0;
}

.advantage-content p {
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-lg);
    font-size: var(--text-base);
    flex: 1;
}

.advantage-content a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    transition: var(--transition-fast);
    padding: var(--space-xs) 0;
    font-size: var(--text-sm);
    margin-top: auto;
}

.advantage-content a:hover {
    color: var(--accent-cyan);
    transform: translateX(2px);
}

/* 按钮系统 - 专业版 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: var(--text-sm);
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    z-index: 1;
    white-space: nowrap;
    line-height: 1;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary-blue);
    border: 1px solid var(--primary-blue);
    box-shadow: var(--shadow-sm);
}

.btn-outline-primary:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--text-base);
}

/* 安全合规卡片 - 专业版 */
.security-card {
    background: var(--gradient-card);
    border: 1px solid rgba(0,102,255,0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    height: 100%;
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.security-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0,102,255,0.2);
}

.security-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    position: relative;
    flex-shrink: 0;
}

.security-icon i {
    font-size: var(--text-lg);
    color: white;
}

.security-card h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    flex-shrink: 0;
}

.security-features {
    list-style: none;
    padding: 0;
    flex: 1;
}

.security-feature {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(0,102,255,0.08);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    font-size: var(--text-sm);
}

.security-feature:last-child {
    border-bottom: none;
}

.security-feature strong {
    color: var(--text-primary);
    font-weight: 500;
}

/* 客户案例卡片 - 专业版 */
.case-card {
    background: var(--gradient-card);
    border: 1px solid rgba(0,102,255,0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    height: 100%;
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.case-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0,102,255,0.2);
}

.case-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    flex-shrink: 0;
}

.case-logo {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--text-lg);
    box-shadow: var(--shadow-md);
    flex-shrink: 0;
}

.case-info h5 {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    line-height: var(--leading-snug);
}

.case-industry {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: rgba(0,102,255,0.08);
    color: var(--primary-blue);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.case-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-content p {
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-lg);
    font-size: var(--text-sm);
    flex: 1;
}

.case-metrics {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
    justify-content: flex-start;
}

.metric {
    text-align: center;
    min-width: 80px;
}

.metric-value {
    display: block;
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: var(--space-xs);
    line-height: 1;
}

.metric-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* CTA部分 - 高端专业版 */
.cta-section {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b  50%, #334155 100%);
    position: relative;
    overflow: hidden;
    padding: var(--space-3xl) 0;
    margin-bottom: 0;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(59,130,246,0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(16,185,129,0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(139,92,246,0.08) 0%, transparent 70%);
    z-index: 1;
}

.cta-section::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.02"><circle cx="30" cy="30" r="1"/></g></svg>') repeat;
    animation: pattern-move 20s linear infinite;
    z-index: 1;
}

@keyframes pattern-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.cta-section .container {
    position: relative;
    z-index: 2;
}

.cta-section h2 {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 800;
    margin-bottom: var(--space-6);
    line-height: 1.1;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(255,255,255,0.1);
}

.cta-section .lead {
    font-size: 1.25rem;
    margin-bottom: var(--space-10);
    line-height: 1.6;
    color: rgba(255,255,255,0.85);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
    letter-spacing: -0.01em;
}

.cta-buttons {
    display: flex;
    gap: var(--space-6);
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-top: var(--space-8);
}

.cta-section .btn {
    position: relative;
    overflow: hidden;
    padding: 18px 36px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: 180px;
    justify-content: center;
    letter-spacing: -0.01em;
    backdrop-filter: blur(10px);
}

.cta-section .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.6s ease;
}

.cta-section .btn:hover::before {
    left: 100%;
}

.cta-section .btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 50%, #1e40af 100%);
    color: white;
    border: 2px solid rgba(255,255,255,0.2);
    box-shadow: 
        0 8px 32px rgba(59,130,246,0.3),
        0 4px 16px rgba(59,130,246,0.2),
        inset 0 1px 0 rgba(255,255,255,0.2);
}

.cta-section .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 12px 40px rgba(59,130,246,0.4),
        0 8px 24px rgba(59,130,246,0.3),
        inset 0 1px 0 rgba(255,255,255,0.3);
    border-color: rgba(255,255,255,0.3);
    color: white;
}

.cta-section .btn-outline-light {
    background: rgba(255,255,255,0.1);
    color: white;
    border: 2px solid rgba(255,255,255,0.3);
    box-shadow: 
        0 4px 16px rgba(0,0,0,0.1),
        inset 0 1px 0 rgba(255,255,255,0.1);
}

.cta-section .btn-outline-light:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-2px);
    box-shadow: 
        0 8px 32px rgba(255,255,255,0.1),
        0 4px 16px rgba(255,255,255,0.05),
        inset 0 1px 0 rgba(255,255,255,0.2);
    color: white;
}

.cta-section .btn i {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.cta-section .btn:hover i {
    transform: scale(1.1);
}

/* CTA装饰元素 */
.cta-decoration {
    position: absolute;
    pointer-events: none;
    z-index: 1;
}

.cta-decoration-1 {
    top: 10%;
    left: 5%;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(59,130,246,0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float-decoration 8s ease-in-out infinite;
}

.cta-decoration-2 {
    bottom: 15%;
    right: 8%;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(16,185,129,0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float-decoration 6s ease-in-out infinite reverse;
}

.cta-decoration-3 {
    top: 60%;
    left: 10%;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, rgba(139,92,246,0.06) 0%, transparent 70%);
    border-radius: 50%;
    animation: float-decoration 10s ease-in-out infinite;
}

@keyframes float-decoration {
    0%, 100% { 
        transform: translateY(0px) scale(1);
        opacity: 0.3;
    }
    50% { 
        transform: translateY(-20px) scale(1.1);
        opacity: 0.6;
    }
}

/* 粒子效果 - 简化版 */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 1;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--accent-cyan);
    border-radius: 50%;
    opacity: 0.3;
    animation: float-particle 8s ease-in-out infinite;
}

.particle:nth-child(1) { top: 20%; left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { top: 60%; left: 20%; animation-delay: 1.6s; }
.particle:nth-child(3) { top: 40%; left: 80%; animation-delay: 3.2s; }
.particle:nth-child(4) { top: 80%; left: 70%; animation-delay: 4.8s; }
.particle:nth-child(5) { top: 30%; left: 60%; animation-delay: 6.4s; }

@keyframes float-particle {
    0%, 100% { transform: translateY(0px) scale(1); opacity: 0.3; }
    50% { transform: translateY(-10px) scale(1.1); opacity: 0.6; }
}

/* 滚动触发动画 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(15px);
    transition: all 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* 动画关键帧 - 简化版 */
/* 现代化动画效果 */
@keyframes cloud-float {
    0%, 100% { 
        transform: translateY(0px);
        opacity: 0.7;
    }
    50% { 
        transform: translateY(-10px);
        opacity: 1;
    }
}

@keyframes node-pulse {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 
            0 10px 30px rgba(0,0,0,0.1),
            0 4px 15px rgba(59,130,246,0.1),
            inset 0 1px 0 rgba(255,255,255,0.8);
    }
    50% { 
        transform: scale(1.02);
        box-shadow: 
            0 15px 35px rgba(0,0,0,0.12),
            0 6px 20px rgba(59,130,246,0.15),
            inset 0 1px 0 rgba(255,255,255,0.9);
    }
}

@keyframes status-blink {
    0%, 50% { opacity: 0.5; }
    100% { opacity: 1; }
}

@keyframes status-glow {
    0%, 100% { 
        opacity: 1;
        box-shadow: 0 2px 8px rgba(16,185,129,0.4);
    }
    50% { 
        opacity: 0.8;
        box-shadow: 0 4px 15px rgba(16,185,129,0.6);
    }
}

@keyframes data-transfer {
    0% { 
        opacity: 0;
        transform: translateY(-50%) scaleX(0);
    }
    20% { 
        opacity: 1;
        transform: translateY(-50%) scaleX(0.5);
    }
    80% { 
        opacity: 1;
        transform: translateY(-50%) scaleX(1);
    }
    100% { 
        opacity: 0;
        transform: translateY(-50%) scaleX(1);
    }
}

/* 响应式设计 - 专业版 */
@media (max-width: 1200px) {
    .hero-title { font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl)); }
    .cloud-server-visual-enhanced { height: 450px; }
    .server-cluster { gap: 60px; }
    .node-container { width: 80px; height: 80px; }
    .performance-metrics { bottom: 10px; right: 10px; }
    .trust-indicators { gap: var(--space-lg); }
    .hero-tags { gap: 8px; }
    .feature-item-modern { padding: var(--space-md); }
    .advantage-card, .security-card, .case-card { 
        padding: var(--space-lg); 
    }
}

@media (max-width: 992px) {
    .product-overview { padding: var(--space-xl) 0; }
    .section-title { font-size: clamp(var(--text-xl), 2.5vw, var(--text-3xl)); }
    .server-illustration { width: 260px; height: 340px; }
    .server-rack { width: 180px; height: 240px; }
    .server-unit { width: 150px; height: 28px; margin: var(--space-sm) auto; }
    .firewall-shield { height: 320px; }
    .shield-body { width: 140px; height: 180px; }
    .shield-icon { font-size: 3rem; }
    .attack-wave { width: 32px; height: 32px; font-size: 1rem; }
    section { padding: var(--space-xl) 0; }
    .spec-card { margin-bottom: var(--space-md); }
    .tech-visual { height: 320px; margin-bottom: var(--space-lg); }
    .tech-layers { width: 240px; height: 260px; }
    .tech-layer { height: 50px; margin-bottom: var(--space-sm); }
    .tech-features { padding-left: 0; }
}

@media (max-width: 768px) {
    .product-overview { 
        min-height: 90vh; 
        text-align: center; 
        padding: var(--space-lg) 0;
    }
    .hero-title { font-size: clamp(var(--text-xl), 5vw, var(--text-3xl)); }
    .hero-tags { 
        justify-content: center; 
        gap: 6px; 
    }
    .tag-item {
        font-size: 12px;
        padding: 4px 8px;
    }
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--space-md);
    }
    .hero-btn-primary, .hero-btn-secondary {
        width: 100%;
        max-width: 280px;
    }
    .trust-indicators { 
        flex-direction: column; 
        gap: var(--space-md); 
        text-align: center;
    }
    .cloud-server-visual-enhanced { 
        height: 300px; 
        margin-top: var(--space-lg);
    }
    .server-cluster { 
        flex-direction: column; 
        gap: var(--space-lg); 
    }
    .node-container { width: 70px; height: 70px; }
    .performance-metrics { 
        position: static; 
        flex-direction: row; 
        justify-content: center; 
        margin-top: var(--space-lg);
    }
    .feature-item-modern {
        padding: var(--space-md); 
        text-align: center;
    }
    .advantage-card, .security-card, .case-card { 
        padding: var(--space-md); 
    }
    .server-illustration { width: 220px; height: 280px; }
    .server-rack { width: 160px; height: 200px; }
    .server-unit { width: 130px; height: 24px; margin: var(--space-xs) auto; }
    .firewall-shield { height: 280px; }
    .shield-body { width: 120px; height: 160px; }
    .shield-icon { font-size: 2.5rem; }
    .attack-wave { width: 28px; height: 28px; font-size: 0.9rem; }
    .wave-1 { top: 18%; left: 2%; }
    .wave-2 { top: 42%; right: 0%; }
    .wave-3 { bottom: 22%; left: 8%; }
    .data-flow { right: -40px; }
    .case-header { 
        flex-direction: column;
        text-align: center;
        gap: var(--space-sm); 
    }
    .case-metrics { justify-content: center; }
    .btn { padding: var(--space-sm) var(--space-md); }
    .btn-lg { padding: var(--space-md) var(--space-lg); }
    .spec-header { padding: var(--space-md); }
    .spec-content { padding: var(--space-md); }
    .use-case-card { padding: var(--space-md); margin-bottom: var(--space-md); }
    .use-case-icon { width: 48px; height: 48px; }
    .tech-visual { height: 260px; }
    .tech-layers { width: 200px; height: 220px; }
    .tech-layer { height: 40px; }
    .tech-feature { 
        flex-direction: column; 
        text-align: center; 
        gap: var(--space-sm); 
        padding: var(--space-md); 
    }
    .cta-section {
        margin-bottom: 0;
        padding: var(--space-2xl) 0;
    }
    
    .cta-section h2 {
        font-size: clamp(2rem, 4vw, 2.5rem);
    }
    
    .cta-section .lead {
        font-size: 1.1rem;
        margin-bottom: var(--space-8);
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: var(--space-4);
    }
    
    .cta-section .btn {
        width: 100%;
        max-width: 280px;
        padding: 16px 32px;
    }
    
    .cta-decoration-1,
    .cta-decoration-2,
    .cta-decoration-3 {
        display: none;
    }
}

@media (max-width: 576px) {
    .product-overview { min-height: 85vh; }
    .hero-title { font-size: var(--text-2xl); }
    .section-title { font-size: var(--text-xl); }
    .hero-badge { 
        font-size: 11px; 
        padding: 6px 12px; 
    }
    .tag-item {
        font-size: 10px;
        padding: 3px 6px;
    }
    .trust-number { font-size: var(--text-lg); }
    .trust-label { font-size: 11px; }
    .cloud-server-visual-enhanced { height: 250px; }
    .node-container { width: 60px; height: 60px; }
    .node-container i { font-size: 20px; }
    .performance-metrics { gap: 8px; }
    .metric-card { 
        min-width: 100px; 
        padding: 8px; 
    }
    .feature-item-modern { padding: var(--space-sm); }
    .feature-icon-modern { 
        width: 48px; 
        height: 48px; 
        border-radius: 12px; 
    }
    .feature-icon-modern i { font-size: 20px; }
    .advantage-card, .security-card, .case-card { 
        padding: var(--space-sm); 
    }
    .server-illustration { width: 180px; height: 240px; }
    .server-rack { width: 140px; height: 180px; }
    .server-unit { width: 110px; height: 20px; }
    .firewall-shield { height: 240px; }
    .shield-body { width: 100px; height: 140px; }
    .shield-icon { font-size: 2rem; }
    .attack-wave { width: 24px; height: 24px; font-size: 0.8rem; }
    .wave-1 { top: 15%; left: 5%; }
    .wave-2 { top: 40%; right: 2%; }
    .wave-3 { bottom: 20%; left: 10%; }
    section { padding: var(--space-lg) 0; }
    .feature-item { margin-bottom: var(--space-xs); }
    .spec-price { padding: var(--space-sm); }
    .price-value { font-size: var(--text-xl); }
    .use-case-features li {
        display: block;
        margin: var(--space-xs) 0;
        margin-right: 0;
    }
    .tech-layers { width: 160px; height: 180px; }
    .tech-layer { height: 32px; }
    .layer-content { gap: var(--space-sm); }
    .layer-content i { font-size: var(--text-sm); }
    .layer-content span { font-size: var(--text-sm); }
    .cta-section {
        margin-bottom: 0;
        padding: var(--space-xl) 0;
    }
    
    .cta-section h2 {
        font-size: 1.8rem;
        margin-bottom: var(--space-4);
    }
    
    .cta-section .lead {
        font-size: 1rem;
        margin-bottom: var(--space-6);
    }
    
    .cta-section .btn {
        padding: 14px 28px;
        font-size: 1rem;
    }
}

/* 防火墙盾牌图标 - CDN专用 */
.firewall-shield {
    position: relative;
    width: 100%;
    height: 400px;
    display: flex;
    align-items: center;
        justify-content: center;
}

.shield-body {
    position: relative;
    width: 180px;
    height: 220px;
    background: linear-gradient(145deg, #3b82f6 0%, #1d4ed8 50%, #1e40af 100%);
    clip-path: polygon(50% 0%, 0% 25%, 0% 75%, 50% 100%, 100% 75%, 100% 25%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 
        0 15px 35px rgba(59,130,246,0.3),
        0 8px 20px rgba(59,130,246,0.2),
        inset 0 2px 0 rgba(255,255,255,0.2);
    animation: shield-glow 3s ease-in-out infinite;
    z-index: 10;
    }
    
.shield-border {
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(145deg, #60a5fa, #3b82f6, #1d4ed8);
    clip-path: polygon(50% 0%, 0% 25%, 0% 75%, 50% 100%, 100% 75%, 100% 25%);
    z-index: -1;
    animation: border-pulse 2s ease-in-out infinite;
}

.shield-content {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
        flex-direction: column;
        align-items: center;
    justify-content: center;
    z-index: 2;
    }
    
.shield-icon {
    font-size: 4rem;
    color: white;
    margin-bottom: 10px;
    text-shadow: 0 0 20px rgba(255,255,255,0.5);
    animation: icon-pulse 2.5s ease-in-out infinite;
}

.attack-blocks {
    position: absolute;
    top: 0;
    left: 0;
        width: 100%;
    height: 100%;
    z-index: 5;
    }
    
.attack-wave {
    position: absolute;
    width: 40px;
    height: 40px;
    background: linear-gradient(45deg, #ef4444, #dc2626);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    box-shadow: 0 4px 15px rgba(239,68,68,0.4);
    animation: attack-bounce 2s ease-in-out infinite;
}

.attack-wave::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    background: linear-gradient(45deg, #ef4444, #dc2626);
    border-radius: 50%;
    opacity: 0.3;
    z-index: -1;
    animation: attack-ripple 2s ease-in-out infinite;
}

.wave-1 {
    top: 20%;
    left: 0%;
    animation-delay: 0s;
    }

.wave-2 {
    top: 45%;
    right: -2%;
    animation-delay: 0.7s;
}

.wave-3 {
    bottom: 25%;
    left: 5%;
    animation-delay: 1.4s;
}

/* 防火墙动画效果 */
@keyframes shield-glow {
    0%, 100% { 
        box-shadow: 
            0 15px 35px rgba(59,130,246,0.3),
            0 8px 20px rgba(59,130,246,0.2),
            inset 0 2px 0 rgba(255,255,255,0.2);
    }
    50% { 
        box-shadow: 
            0 20px 45px rgba(59,130,246,0.4),
            0 12px 30px rgba(59,130,246,0.3),
            inset 0 2px 0 rgba(255,255,255,0.3);
    }
}

@keyframes border-pulse {
    0%, 100% { 
        opacity: 0.8;
        transform: scale(1);
    }
    50% { 
        opacity: 1;
        transform: scale(1.02);
    }
}

@keyframes icon-pulse {
    0%, 100% { 
        transform: scale(1);
        text-shadow: 0 0 20px rgba(255,255,255,0.5);
    }
    50% { 
        transform: scale(1.1);
        text-shadow: 0 0 30px rgba(255,255,255,0.8);
}
}

@keyframes attack-bounce {
    0%, 100% { 
        transform: translateY(0px) scale(1);
        opacity: 0.8;
    }
    25% { 
        transform: translateY(-20px) scale(1.1);
        opacity: 1;
    }
    50% { 
        transform: translateY(-10px) scale(1);
        opacity: 0.9;
    }
    75% { 
        transform: translateY(-5px) scale(0.95);
        opacity: 0.7;
    }
}

@keyframes attack-ripple {
    0% { 
        transform: scale(1);
        opacity: 0.3;
    }
    100% { 
        transform: scale(2);
        opacity: 0;
    }
}

/* 虚拟主机视觉效果样式 */
.hosting-visual {
    position: relative;
    width: 100%;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.website-icon {
    position: relative;
    width: 160px;
    height: 160px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 
        0 20px 40px rgba(0,0,0,0.12),
        0 8px 25px rgba(59,130,246,0.15),
        inset 0 2px 0 rgba(255,255,255,0.9);
    border: 3px solid rgba(59,130,246,0.2);
    z-index: 10;
    animation: website-pulse 4s ease-in-out infinite;
    transition: all 0.3s ease;
    }
    
.website-icon:hover {
    transform: scale(1.05);
    box-shadow: 
        0 25px 50px rgba(0,0,0,0.15),
        0 10px 30px rgba(59,130,246,0.2),
        inset 0 2px 0 rgba(255,255,255,1);
    border-color: rgba(59,130,246,0.3);
}

.website-icon i {
    font-size: 4rem;
    color: #3b82f6;
    transition: all 0.3s ease;
}

.website-icon:hover i {
    color: #1d4ed8;
    transform: scale(1.1);
}

.website-icon span {
    color: #374151;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
}

.hosting-features {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.feature-node {
    position: absolute;
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    box-shadow: 
        0 8px 25px rgba(0,0,0,0.08),
        0 3px 12px rgba(59,130,246,0.1);
    border: 1px solid rgba(59,130,246,0.1);
    animation: node-bounce 4s ease-in-out infinite;
}

.feature-node i {
    font-size: 1.5rem;
    color: #3b82f6;
}

.feature-node span {
    font-size: 0.7rem;
    color: #6b7280;
    font-weight: 500;
}

.node-1 {
    top: 10%;
    right: 5%;
    animation-delay: 0s;
}

.node-2 {
    bottom: 15%;
    right: 0%;
    animation-delay: 1.3s;
}

.node-3 {
    bottom: 10%;
    left: 5%;
    animation-delay: 2.6s;
}

.connection-flow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 5;
}

.flow-line {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(59,130,246,0.6) 20%, 
        rgba(59,130,246,0.8) 50%, 
        rgba(59,130,246,0.6) 80%, 
        transparent 100%);
    border-radius: 1px;
    animation: flow-animation 3s ease-in-out infinite;
}

.line-1 {
    top: 25%;
    right: 15%;
    width: 25%;
    transform: rotate(25deg);
    animation-delay: 0s;
}

.line-2 {
    bottom: 30%;
    right: 15%;
    width: 20%;
    transform: rotate(-30deg);
    animation-delay: 1s;
}

.line-3 {
    bottom: 25%;
    left: 15%;
    width: 25%;
    transform: rotate(30deg);
    animation-delay: 2s;
}

/* 虚拟主机动画效果 */
@keyframes website-pulse {
    0%, 100% { 
        transform: translateY(0px) scale(1);
        box-shadow: 
            0 20px 40px rgba(0,0,0,0.12),
            0 8px 25px rgba(59,130,246,0.15),
            inset 0 2px 0 rgba(255,255,255,0.9);
    }
    50% { 
        transform: translateY(-8px) scale(1.02);
        box-shadow: 
            0 25px 50px rgba(0,0,0,0.15),
            0 12px 30px rgba(59,130,246,0.2),
            inset 0 2px 0 rgba(255,255,255,1);
    }
}

@keyframes node-bounce {
    0%, 100% { 
        transform: translateY(0px) scale(1);
    }
    50% { 
        transform: translateY(-5px) scale(1.05);
    }
}

@keyframes flow-animation {
    0% { 
        opacity: 0;
        transform: scaleX(0);
    }
    20% { 
        opacity: 1;
        transform: scaleX(0.5);
    }
    80% { 
        opacity: 1;
        transform: scaleX(1);
    }
    100% { 
        opacity: 0;
        transform: scaleX(1);
    }
}

@keyframes status-pulse {
    0%, 100% { 
        opacity: 1;
        transform: scale(1);
    }
    50% { 
        opacity: 0.7;
        transform: scale(1.2);
    }
}

/* 客户案例卡片增强样式 */
.case-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: var(--radius-lg);
    padding: 2rem;
    border: 1px solid rgba(59,130,246,0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    height: 100%;
    position: relative;
    overflow: hidden;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #1d4ed8);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: 
        0 20px 40px rgba(0,0,0,0.12),
        0 8px 25px rgba(59,130,246,0.15);
    border-color: rgba(59,130,246,0.2);
}

.case-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.case-icon i {
    font-size: 1.8rem;
    color: white;
}

.case-card:hover .case-icon {
    transform: scale(1.1) rotate(5deg);
}

.case-content h5 {
    color: var(--color-text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.case-content p {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.case-stats {
    display: flex;
    gap: 2rem;
    margin-top: auto;
}

.stat-item {
    text-align: center;
}

.stat-item strong {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: #3b82f6;
    margin-bottom: 0.25rem;
}

.stat-item span {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .website-icon {
        width: 120px;
        height: 120px;
    }
    
    .website-icon i {
        font-size: 3rem;
    }
    
    .website-icon span {
        font-size: 0.9rem;
    }
    
    .feature-node {
        width: 60px;
        height: 60px;
    }
    
    .feature-node i {
        font-size: 1.3rem;
    }
    
    .feature-node span {
        font-size: 0.6rem;
    }
    
    .case-stats {
        gap: 1rem;
    }
    
    .stat-item strong {
        font-size: 1.25rem;
    }
} 
.use-case-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0,102,255,0.2);
}

.use-case-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    position: relative;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.use-case-card:hover .use-case-icon {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.use-case-icon i {
    font-size: var(--text-xl);
    color: white;
}

.use-case-card h5 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    line-height: var(--leading-snug);
}

.use-case-card p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    line-height: var(--leading-relaxed);
    flex: 1;
}

.use-case-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.use-case-features li {
    padding: var(--space-xs) var(--space-sm);
    margin: var(--space-xs) 0;
    background: rgba(0,102,255,0.08);
    color: var(--primary-blue);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: 500;
    display: inline-block;
    margin-right: var(--space-xs);
}

/* 技术架构 - 专业版 */
.tech-architecture {
    background: var(--bg-secondary);
    position: relative;
}

.tech-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 400px;
}

.tech-layers {
    width: 280px;
    height: 320px;
    position: relative;
}

.tech-layer {
    width: 100%;
    height: 60px;
    margin-bottom: var(--space-md);
    position: relative;
    transition: var(--transition-normal);
}

.tech-layer:hover {
    transform: translateX(8px);
}

.layer-content {
    width: 100%;
    height: 100%;
    background: var(--gradient-card);
    border: 1px solid rgba(0,102,255,0.08);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.tech-layer:hover .layer-content {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
    border-color: rgba(0,102,255,0.3);
}

.layer-content i {
    font-size: var(--text-base);
    transition: var(--transition-normal);
}

.layer-content span {
    font-size: var(--text-base);
    font-weight: 500;
    transition: var(--transition-normal);
}

.tech-features {
    padding-left: var(--space-lg);
}

.tech-feature {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    padding: var(--space-lg);
    background: var(--gradient-card);
    border: 1px solid rgba(0,102,255,0.08);
    border-radius: var(--radius-sm);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.tech-feature:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(0,102,255,0.15);
}

.tech-feature-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.tech-feature:hover .tech-feature-icon {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.tech-feature-icon i {
    font-size: var(--text-base);
    color: white;
}

.tech-feature-content h5 {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    line-height: var(--leading-snug);
}

.tech-feature-content p {
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    font-size: var(--text-sm);
    margin: 0;
}

/* 产品优势卡片 - 专业版 */
.advantage-card {
    background: var(--gradient-card);
    border: 1px solid rgba(0,102,255,0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    height: 100%;
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.advantage-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0,102,255,0.2);
}

.advantage-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    position: relative;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    flex-shrink: 0;
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.advantage-icon i {
    font-size: var(--text-xl);
    color: white;
}

.advantage-content {
    position: relative;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.advantage-content h4 {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    line-height: var(--leading-snug);
    flex-shrink: 0;
}

.advantage-content p {
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-lg);
    font-size: var(--text-base);
    flex: 1;
}

.advantage-content a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    transition: var(--transition-fast);
    padding: var(--space-xs) 0;
    font-size: var(--text-sm);
    margin-top: auto;
}

.advantage-content a:hover {
    color: var(--accent-cyan);
    transform: translateX(2px);
}

/* 按钮系统 - 专业版 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: var(--text-sm);
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    z-index: 1;
    white-space: nowrap;
    line-height: 1;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary-blue);
    border: 1px solid var(--primary-blue);
    box-shadow: var(--shadow-sm);
}

.btn-outline-primary:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--text-base);
}

/* 安全合规卡片 - 专业版 */
.security-card {
    background: var(--gradient-card);
    border: 1px solid rgba(0,102,255,0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    height: 100%;
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.security-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0,102,255,0.2);
}

.security-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    position: relative;
    flex-shrink: 0;
}

.security-icon i {
    font-size: var(--text-lg);
    color: white;
}

.security-card h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    flex-shrink: 0;
}

.security-features {
    list-style: none;
    padding: 0;
    flex: 1;
}

.security-feature {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(0,102,255,0.08);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    font-size: var(--text-sm);
}

.security-feature:last-child {
    border-bottom: none;
}

.security-feature strong {
    color: var(--text-primary);
    font-weight: 500;
}

/* 客户案例卡片 - 专业版 */
.case-card {
    background: var(--gradient-card);
    border: 1px solid rgba(0,102,255,0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    height: 100%;
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.case-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0,102,255,0.2);
}

.case-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    flex-shrink: 0;
}

.case-logo {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--text-lg);
    box-shadow: var(--shadow-md);
    flex-shrink: 0;
}

.case-info h5 {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    line-height: var(--leading-snug);
}

.case-industry {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: rgba(0,102,255,0.08);
    color: var(--primary-blue);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.case-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-content p {
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-lg);
    font-size: var(--text-sm);
    flex: 1;
}

.case-metrics {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
    justify-content: flex-start;
}

.metric {
    text-align: center;
    min-width: 80px;
}

.metric-value {
    display: block;
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: var(--space-xs);
    line-height: 1;
}

.metric-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* CTA部分 - 高端专业版 */
.cta-section {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b  50%, #334155 100%);
    position: relative;
    overflow: hidden;
    padding: var(--space-3xl) 0;
    margin-bottom: 0;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(59,130,246,0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(16,185,129,0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(139,92,246,0.08) 0%, transparent 70%);
    z-index: 1;
}

.cta-section::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.02"><circle cx="30" cy="30" r="1"/></g></svg>') repeat;
    animation: pattern-move 20s linear infinite;
    z-index: 1;
}

@keyframes pattern-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.cta-section .container {
    position: relative;
    z-index: 2;
}

.cta-section h2 {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 800;
    margin-bottom: var(--space-6);
    line-height: 1.1;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(255,255,255,0.1);
}

.cta-section .lead {
    font-size: 1.25rem;
    margin-bottom: var(--space-10);
    line-height: 1.6;
    color: rgba(255,255,255,0.85);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
    letter-spacing: -0.01em;
}

.cta-buttons {
    display: flex;
    gap: var(--space-6);
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-top: var(--space-8);
}

.cta-section .btn {
    position: relative;
    overflow: hidden;
    padding: 18px 36px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: 180px;
    justify-content: center;
    letter-spacing: -0.01em;
    backdrop-filter: blur(10px);
}

.cta-section .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.6s ease;
}

.cta-section .btn:hover::before {
    left: 100%;
}

.cta-section .btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 50%, #1e40af 100%);
    color: white;
    border: 2px solid rgba(255,255,255,0.2);
    box-shadow: 
        0 8px 32px rgba(59,130,246,0.3),
        0 4px 16px rgba(59,130,246,0.2),
        inset 0 1px 0 rgba(255,255,255,0.2);
}

.cta-section .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 12px 40px rgba(59,130,246,0.4),
        0 8px 24px rgba(59,130,246,0.3),
        inset 0 1px 0 rgba(255,255,255,0.3);
    border-color: rgba(255,255,255,0.3);
    color: white;
}

.cta-section .btn-outline-light {
    background: rgba(255,255,255,0.1);
    color: white;
    border: 2px solid rgba(255,255,255,0.3);
    box-shadow: 
        0 4px 16px rgba(0,0,0,0.1),
        inset 0 1px 0 rgba(255,255,255,0.1);
}

.cta-section .btn-outline-light:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-2px);
    box-shadow: 
        0 8px 32px rgba(255,255,255,0.1),
        0 4px 16px rgba(255,255,255,0.05),
        inset 0 1px 0 rgba(255,255,255,0.2);
    color: white;
}

.cta-section .btn i {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.cta-section .btn:hover i {
    transform: scale(1.1);
}

/* CTA装饰元素 */
.cta-decoration {
    position: absolute;
    pointer-events: none;
    z-index: 1;
}

.cta-decoration-1 {
    top: 10%;
    left: 5%;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(59,130,246,0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float-decoration 8s ease-in-out infinite;
}

.cta-decoration-2 {
    bottom: 15%;
    right: 8%;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(16,185,129,0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float-decoration 6s ease-in-out infinite reverse;
}

.cta-decoration-3 {
    top: 60%;
    left: 10%;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, rgba(139,92,246,0.06) 0%, transparent 70%);
    border-radius: 50%;
    animation: float-decoration 10s ease-in-out infinite;
}

@keyframes float-decoration {
    0%, 100% { 
        transform: translateY(0px) scale(1);
        opacity: 0.3;
    }
    50% { 
        transform: translateY(-20px) scale(1.1);
        opacity: 0.6;
    }
}

/* 粒子效果 - 简化版 */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 1;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--accent-cyan);
    border-radius: 50%;
    opacity: 0.3;
    animation: float-particle 8s ease-in-out infinite;
}

.particle:nth-child(1) { top: 20%; left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { top: 60%; left: 20%; animation-delay: 1.6s; }
.particle:nth-child(3) { top: 40%; left: 80%; animation-delay: 3.2s; }
.particle:nth-child(4) { top: 80%; left: 70%; animation-delay: 4.8s; }
.particle:nth-child(5) { top: 30%; left: 60%; animation-delay: 6.4s; }

@keyframes float-particle {
    0%, 100% { transform: translateY(0px) scale(1); opacity: 0.3; }
    50% { transform: translateY(-10px) scale(1.1); opacity: 0.6; }
}

/* 滚动触发动画 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(15px);
    transition: all 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* 动画关键帧 - 简化版 */
/* 现代化动画效果 */
@keyframes cloud-float {
    0%, 100% { 
        transform: translateY(0px);
        opacity: 0.7;
    }
    50% { 
        transform: translateY(-10px);
        opacity: 1;
    }
}

@keyframes node-pulse {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 
            0 10px 30px rgba(0,0,0,0.1),
            0 4px 15px rgba(59,130,246,0.1),
            inset 0 1px 0 rgba(255,255,255,0.8);
    }
    50% { 
        transform: scale(1.02);
        box-shadow: 
            0 15px 35px rgba(0,0,0,0.12),
            0 6px 20px rgba(59,130,246,0.15),
            inset 0 1px 0 rgba(255,255,255,0.9);
    }
}

@keyframes status-blink {
    0%, 50% { opacity: 0.5; }
    100% { opacity: 1; }
}

@keyframes status-glow {
    0%, 100% { 
        opacity: 1;
        box-shadow: 0 2px 8px rgba(16,185,129,0.4);
    }
    50% { 
        opacity: 0.8;
        box-shadow: 0 4px 15px rgba(16,185,129,0.6);
    }
}

@keyframes data-transfer {
    0% { 
        opacity: 0;
        transform: translateY(-50%) scaleX(0);
    }
    20% { 
        opacity: 1;
        transform: translateY(-50%) scaleX(0.5);
    }
    80% { 
        opacity: 1;
        transform: translateY(-50%) scaleX(1);
    }
    100% { 
        opacity: 0;
        transform: translateY(-50%) scaleX(1);
    }
}

/* 响应式设计 - 专业版 */
@media (max-width: 1200px) {
    .product-overview h1 { font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl)); }
    .server-rack { width: 200px; height: 280px; }
    .server-unit { width: 170px; height: 32px; }
    .firewall-shield { height: 350px; }
    .shield-body { width: 160px; height: 200px; }
    .shield-icon { font-size: 3.5rem; }
    .attack-wave { width: 35px; height: 35px; font-size: 1.1rem; }
    .advantage-card, .security-card, .case-card { 
        padding: var(--space-lg); 
    }
}

@media (max-width: 992px) {
    .product-overview { padding: var(--space-xl) 0; }
    .section-title { font-size: clamp(var(--text-xl), 2.5vw, var(--text-3xl)); }
    .server-illustration { width: 260px; height: 340px; }
    .server-rack { width: 180px; height: 240px; }
    .server-unit { width: 150px; height: 28px; margin: var(--space-sm) auto; }
    .firewall-shield { height: 320px; }
    .shield-body { width: 140px; height: 180px; }
    .shield-icon { font-size: 3rem; }
    .attack-wave { width: 32px; height: 32px; font-size: 1rem; }
    section { padding: var(--space-xl) 0; }
    .spec-card { margin-bottom: var(--space-md); }
    .tech-visual { height: 320px; margin-bottom: var(--space-lg); }
    .tech-layers { width: 240px; height: 260px; }
    .tech-layer { height: 50px; margin-bottom: var(--space-sm); }
    .tech-features { padding-left: 0; }
}

@media (max-width: 768px) {
    .product-overview { 
        min-height: 70vh; 
        text-align: center; 
        padding: var(--space-lg) 0;
    }
    .feature-item {
        padding: var(--space-md); 
        text-align: center;
    }
    .advantage-card, .security-card, .case-card { 
        padding: var(--space-md); 
    }
    .server-illustration { width: 220px; height: 280px; }
    .server-rack { width: 160px; height: 200px; }
    .server-unit { width: 130px; height: 24px; margin: var(--space-xs) auto; }
    .firewall-shield { height: 280px; }
    .shield-body { width: 120px; height: 160px; }
    .shield-icon { font-size: 2.5rem; }
    .attack-wave { width: 28px; height: 28px; font-size: 0.9rem; }
    .wave-1 { top: 18%; left: 2%; }
    .wave-2 { top: 42%; right: 0%; }
    .wave-3 { bottom: 22%; left: 8%; }
    .data-flow { right: -40px; }
    .case-header { 
        flex-direction: column;
        text-align: center;
        gap: var(--space-sm); 
    }
    .case-metrics { justify-content: center; }
    .btn { padding: var(--space-sm) var(--space-md); }
    .btn-lg { padding: var(--space-md) var(--space-lg); }
    .spec-header { padding: var(--space-md); }
    .spec-content { padding: var(--space-md); }
    .use-case-card { padding: var(--space-md); margin-bottom: var(--space-md); }
    .use-case-icon { width: 48px; height: 48px; }
    .tech-visual { height: 260px; }
    .tech-layers { width: 200px; height: 220px; }
    .tech-layer { height: 40px; }
    .tech-feature { 
        flex-direction: column; 
        text-align: center; 
        gap: var(--space-sm); 
        padding: var(--space-md); 
    }
    .cta-section {
        margin-bottom: 0;
        padding: var(--space-2xl) 0;
    }
    
    .cta-section h2 {
        font-size: clamp(2rem, 4vw, 2.5rem);
    }
    
    .cta-section .lead {
        font-size: 1.1rem;
        margin-bottom: var(--space-8);
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: var(--space-4);
    }
    
    .cta-section .btn {
        width: 100%;
        max-width: 280px;
        padding: 16px 32px;
    }
    
    .cta-decoration-1,
    .cta-decoration-2,
    .cta-decoration-3 {
        display: none;
    }
}

@media (max-width: 576px) {
    .product-overview h1 { font-size: var(--text-2xl); }
    .section-title { font-size: var(--text-xl); }
    .advantage-card, .security-card, .case-card { 
        padding: var(--space-sm); 
    }
    .server-illustration { width: 180px; height: 240px; }
    .server-rack { width: 140px; height: 180px; }
    .server-unit { width: 110px; height: 20px; }
    .firewall-shield { height: 240px; }
    .shield-body { width: 100px; height: 140px; }
    .shield-icon { font-size: 2rem; }
    .attack-wave { width: 24px; height: 24px; font-size: 0.8rem; }
    .wave-1 { top: 15%; left: 5%; }
    .wave-2 { top: 40%; right: 2%; }
    .wave-3 { bottom: 20%; left: 10%; }
    section { padding: var(--space-lg) 0; }
    .feature-item { margin-bottom: var(--space-xs); }
    .spec-price { padding: var(--space-sm); }
    .price-value { font-size: var(--text-xl); }
    .use-case-features li {
        display: block;
        margin: var(--space-xs) 0;
        margin-right: 0;
    }
    .tech-layers { width: 160px; height: 180px; }
    .tech-layer { height: 32px; }
    .layer-content { gap: var(--space-sm); }
    .layer-content i { font-size: var(--text-sm); }
    .layer-content span { font-size: var(--text-sm); }
    .cta-section {
        margin-bottom: 0;
        padding: var(--space-xl) 0;
    }
    
    .cta-section h2 {
        font-size: 1.8rem;
        margin-bottom: var(--space-4);
    }
    
    .cta-section .lead {
        font-size: 1rem;
        margin-bottom: var(--space-6);
    }
    
    .cta-section .btn {
        padding: 14px 28px;
        font-size: 1rem;
    }
}

/* 防火墙盾牌图标 - CDN专用 */
.firewall-shield {
    position: relative;
    width: 100%;
    height: 400px;
    display: flex;
    align-items: center;
        justify-content: center;
}

.shield-body {
    position: relative;
    width: 180px;
    height: 220px;
    background: linear-gradient(145deg, #3b82f6 0%, #1d4ed8 50%, #1e40af 100%);
    clip-path: polygon(50% 0%, 0% 25%, 0% 75%, 50% 100%, 100% 75%, 100% 25%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 
        0 15px 35px rgba(59,130,246,0.3),
        0 8px 20px rgba(59,130,246,0.2),
        inset 0 2px 0 rgba(255,255,255,0.2);
    animation: shield-glow 3s ease-in-out infinite;
    z-index: 10;
    }
    
.shield-border {
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(145deg, #60a5fa, #3b82f6, #1d4ed8);
    clip-path: polygon(50% 0%, 0% 25%, 0% 75%, 50% 100%, 100% 75%, 100% 25%);
    z-index: -1;
    animation: border-pulse 2s ease-in-out infinite;
}

.shield-content {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
        flex-direction: column;
        align-items: center;
    justify-content: center;
    z-index: 2;
    }
    
.shield-icon {
    font-size: 4rem;
    color: white;
    margin-bottom: 10px;
    text-shadow: 0 0 20px rgba(255,255,255,0.5);
    animation: icon-pulse 2.5s ease-in-out infinite;
}

.attack-blocks {
    position: absolute;
    top: 0;
    left: 0;
        width: 100%;
    height: 100%;
    z-index: 5;
    }
    
.attack-wave {
    position: absolute;
    width: 40px;
    height: 40px;
    background: linear-gradient(45deg, #ef4444, #dc2626);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    box-shadow: 0 4px 15px rgba(239,68,68,0.4);
    animation: attack-bounce 2s ease-in-out infinite;
}

.attack-wave::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    background: linear-gradient(45deg, #ef4444, #dc2626);
    border-radius: 50%;
    opacity: 0.3;
    z-index: -1;
    animation: attack-ripple 2s ease-in-out infinite;
}

.wave-1 {
    top: 20%;
    left: 0%;
    animation-delay: 0s;
    }

.wave-2 {
    top: 45%;
    right: -2%;
    animation-delay: 0.7s;
}

.wave-3 {
    bottom: 25%;
    left: 5%;
    animation-delay: 1.4s;
}

/* 防火墙动画效果 */
@keyframes shield-glow {
    0%, 100% { 
        box-shadow: 
            0 15px 35px rgba(59,130,246,0.3),
            0 8px 20px rgba(59,130,246,0.2),
            inset 0 2px 0 rgba(255,255,255,0.2);
    }
    50% { 
        box-shadow: 
            0 20px 45px rgba(59,130,246,0.4),
            0 12px 30px rgba(59,130,246,0.3),
            inset 0 2px 0 rgba(255,255,255,0.3);
    }
}

@keyframes border-pulse {
    0%, 100% { 
        opacity: 0.8;
        transform: scale(1);
    }
    50% { 
        opacity: 1;
        transform: scale(1.02);
    }
}

@keyframes icon-pulse {
    0%, 100% { 
        transform: scale(1);
        text-shadow: 0 0 20px rgba(255,255,255,0.5);
    }
    50% { 
        transform: scale(1.1);
        text-shadow: 0 0 30px rgba(255,255,255,0.8);
}
}

@keyframes attack-bounce {
    0%, 100% { 
        transform: translateY(0px) scale(1);
        opacity: 0.8;
    }
    25% { 
        transform: translateY(-20px) scale(1.1);
        opacity: 1;
    }
    50% { 
        transform: translateY(-10px) scale(1);
        opacity: 0.9;
    }
    75% { 
        transform: translateY(-5px) scale(0.95);
        opacity: 0.7;
    }
}

@keyframes attack-ripple {
    0% { 
        transform: scale(1);
        opacity: 0.3;
    }
    100% { 
        transform: scale(2);
        opacity: 0;
    }
}

/* 虚拟主机视觉效果样式 */
.hosting-visual {
    position: relative;
    width: 100%;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.website-icon {
    position: relative;
    width: 160px;
    height: 160px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 
        0 20px 40px rgba(0,0,0,0.12),
        0 8px 25px rgba(59,130,246,0.15),
        inset 0 2px 0 rgba(255,255,255,0.9);
    border: 3px solid rgba(59,130,246,0.2);
    z-index: 10;
    animation: website-pulse 4s ease-in-out infinite;
    transition: all 0.3s ease;
    }
    
.website-icon:hover {
    transform: scale(1.05);
    box-shadow: 
        0 25px 50px rgba(0,0,0,0.15),
        0 10px 30px rgba(59,130,246,0.2),
        inset 0 2px 0 rgba(255,255,255,1);
    border-color: rgba(59,130,246,0.3);
}

.website-icon i {
    font-size: 4rem;
    color: #3b82f6;
    transition: all 0.3s ease;
}

.website-icon:hover i {
    color: #1d4ed8;
    transform: scale(1.1);
}

.website-icon span {
    color: #374151;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
}

.hosting-features {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.feature-node {
    position: absolute;
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    box-shadow: 
        0 8px 25px rgba(0,0,0,0.08),
        0 3px 12px rgba(59,130,246,0.1);
    border: 1px solid rgba(59,130,246,0.1);
    animation: node-bounce 4s ease-in-out infinite;
}

.feature-node i {
    font-size: 1.5rem;
    color: #3b82f6;
}

.feature-node span {
    font-size: 0.7rem;
    color: #6b7280;
    font-weight: 500;
}

.node-1 {
    top: 10%;
    right: 5%;
    animation-delay: 0s;
}

.node-2 {
    bottom: 15%;
    right: 0%;
    animation-delay: 1.3s;
}

.node-3 {
    bottom: 10%;
    left: 5%;
    animation-delay: 2.6s;
}

.connection-flow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 5;
}

.flow-line {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(59,130,246,0.6) 20%, 
        rgba(59,130,246,0.8) 50%, 
        rgba(59,130,246,0.6) 80%, 
        transparent 100%);
    border-radius: 1px;
    animation: flow-animation 3s ease-in-out infinite;
}

.line-1 {
    top: 25%;
    right: 15%;
    width: 25%;
    transform: rotate(25deg);
    animation-delay: 0s;
}

.line-2 {
    bottom: 30%;
    right: 15%;
    width: 20%;
    transform: rotate(-30deg);
    animation-delay: 1s;
}

.line-3 {
    bottom: 25%;
    left: 15%;
    width: 25%;
    transform: rotate(30deg);
    animation-delay: 2s;
}

/* 虚拟主机动画效果 */
@keyframes website-pulse {
    0%, 100% { 
        transform: translateY(0px) scale(1);
        box-shadow: 
            0 20px 40px rgba(0,0,0,0.12),
            0 8px 25px rgba(59,130,246,0.15),
            inset 0 2px 0 rgba(255,255,255,0.9);
    }
    50% { 
        transform: translateY(-8px) scale(1.02);
        box-shadow: 
            0 25px 50px rgba(0,0,0,0.15),
            0 12px 30px rgba(59,130,246,0.2),
            inset 0 2px 0 rgba(255,255,255,1);
    }
}

@keyframes node-bounce {
    0%, 100% { 
        transform: translateY(0px) scale(1);
    }
    50% { 
        transform: translateY(-5px) scale(1.05);
    }
}

@keyframes flow-animation {
    0% { 
        opacity: 0;
        transform: scaleX(0);
    }
    20% { 
        opacity: 1;
        transform: scaleX(0.5);
    }
    80% { 
        opacity: 1;
        transform: scaleX(1);
    }
    100% { 
        opacity: 0;
        transform: scaleX(1);
    }
}

@keyframes status-pulse {
    0%, 100% { 
        opacity: 1;
        transform: scale(1);
    }
    50% { 
        opacity: 0.7;
        transform: scale(1.2);
    }
}

/* 客户案例卡片增强样式 */
.case-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: var(--radius-lg);
    padding: 2rem;
    border: 1px solid rgba(59,130,246,0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    height: 100%;
    position: relative;
    overflow: hidden;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #1d4ed8);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: 
        0 20px 40px rgba(0,0,0,0.12),
        0 8px 25px rgba(59,130,246,0.15);
    border-color: rgba(59,130,246,0.2);
}

.case-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.case-icon i {
    font-size: 1.8rem;
    color: white;
}

.case-card:hover .case-icon {
    transform: scale(1.1) rotate(5deg);
}

.case-content h5 {
    color: var(--color-text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.case-content p {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.case-stats {
    display: flex;
    gap: 2rem;
    margin-top: auto;
}

.stat-item {
    text-align: center;
}

.stat-item strong {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: #3b82f6;
    margin-bottom: 0.25rem;
}

.stat-item span {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .website-icon {
        width: 120px;
        height: 120px;
    }
    
    .website-icon i {
        font-size: 3rem;
    }
    
    .website-icon span {
        font-size: 0.9rem;
    }
    
    .feature-node {
        width: 60px;
        height: 60px;
    }
    
    .feature-node i {
        font-size: 1.3rem;
    }
    
    .feature-node span {
        font-size: 0.6rem;
    }
    
    .case-stats {
        gap: 1rem;
    }
    
    .stat-item strong {
        font-size: 1.25rem;
    }
} 

/* 增强的CDN防火墙盾牌样式 */
.firewall-shield-enhanced {
    position: relative;
    width: 100%;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* 盾牌核心 */
.shield-core {
    position: relative;
    z-index: 15;
}

.shield-core .shield-body {
    position: relative;
    width: 200px;
    height: 240px;
    background: linear-gradient(145deg, #3b82f6 0%, #1d4ed8 50%, #1e40af 100%);
    clip-path: polygon(50% 0%, 0% 25%, 0% 75%, 50% 100%, 100% 75%, 100% 25%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 
        0 20px 50px rgba(59,130,246,0.4),
        0 10px 30px rgba(59,130,246,0.3),
        inset 0 2px 0 rgba(255,255,255,0.3);
    animation: shield-glow-enhanced 4s ease-in-out infinite;
}

@keyframes shield-glow-enhanced {
    0%, 100% { 
        box-shadow: 
            0 20px 50px rgba(59,130,246,0.4),
            0 10px 30px rgba(59,130,246,0.3),
            inset 0 2px 0 rgba(255,255,255,0.3);
        transform: scale(1);
    }
    50% { 
        box-shadow: 
            0 25px 60px rgba(59,130,246,0.5),
            0 15px 40px rgba(59,130,246,0.4),
            inset 0 3px 0 rgba(255,255,255,0.4);
        transform: scale(1.02);
    }
}

.shield-core .shield-icon {
    font-size: 3.5rem;
    color: white;
    margin-bottom: 16px;
    text-shadow: 0 0 30px rgba(255,255,255,0.6);
    animation: icon-pulse-enhanced 3s ease-in-out infinite;
}

@keyframes icon-pulse-enhanced {
    0%, 100% { 
        transform: scale(1);
        text-shadow: 0 0 30px rgba(255,255,255,0.6);
    }
    50% { 
        transform: scale(1.1);
        text-shadow: 0 0 40px rgba(255,255,255,0.8);
    }
}

.shield-status {
    text-align: center;
    color: white;
}

.status-text {
    font-size: 12px;
    font-weight: 600;
    display: block;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.status-bar {
    width: 60px;
    height: 4px;
    background: rgba(255,255,255,0.3);
    border-radius: 2px;
    overflow: hidden;
    margin: 0 auto;
}

.status-bar .bar-fill {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, #10b981, #34d399);
    border-radius: 2px;
    animation: bar-pulse 2s ease-in-out infinite;
}

@keyframes bar-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* 防护环 */
.protection-rings {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
    z-index: 5;
}

.protection-rings .ring {
    position: absolute;
    border: 2px solid rgba(59,130,246,0.3);
    border-radius: 50%;
    animation: ring-rotate 10s linear infinite;
}

.ring-1 {
    width: 280px;
    height: 280px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-color: rgba(59,130,246,0.4);
    animation-duration: 8s;
}

.ring-2 {
    width: 320px;
    height: 320px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-color: rgba(59,130,246,0.25);
    animation-duration: 12s;
    animation-direction: reverse;
}

.ring-3 {
    width: 360px;
    height: 360px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-color: rgba(59,130,246,0.15);
    animation-duration: 15s;
}

@keyframes ring-rotate {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 攻击源节点 */
.attack-sources {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
}

.attack-node {
    position: absolute;
    text-align: center;
    animation: attack-hover 4s ease-in-out infinite;
}

.node-1 {
    top: 15%;
    left: 10%;
    animation-delay: 0s;
}

.node-2 {
    top: 60%;
    right: 8%;
    animation-delay: 1.5s;
}

.node-3 {
    bottom: 20%;
    left: 15%;
    animation-delay: 3s;
}

@keyframes attack-hover {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-8px) scale(1.05); }
}

.node-core {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #ef4444, #dc2626);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 8px;
    box-shadow: 
        0 8px 25px rgba(239,68,68,0.4),
        0 4px 15px rgba(239,68,68,0.3);
    animation: node-glow 3s ease-in-out infinite;
}

@keyframes node-glow {
    0%, 100% { 
        box-shadow: 
            0 8px 25px rgba(239,68,68,0.4),
            0 4px 15px rgba(239,68,68,0.3);
    }
    50% { 
        box-shadow: 
            0 12px 35px rgba(239,68,68,0.5),
            0 6px 20px rgba(239,68,68,0.4);
    }
}

.node-core i {
    font-size: 24px;
    color: white;
}

.node-label {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.attack-waves {
    position: relative;
    width: 80px;
    height: 20px;
    margin: 0 auto;
}

.attack-waves .wave {
    position: absolute;
    width: 4px;
    height: 4px;
    background: #ef4444;
    border-radius: 50%;
    animation: wave-attack 2s linear infinite;
}

.attack-waves .wave:nth-child(1) { left: 0; animation-delay: 0s; }
.attack-waves .wave:nth-child(2) { left: 20px; animation-delay: 0.3s; }
.attack-waves .wave:nth-child(3) { left: 40px; animation-delay: 0.6s; }

@keyframes wave-attack {
    0% { 
        transform: translateX(0) scale(1);
        opacity: 1;
    }
    100% { 
        transform: translateX(40px) scale(0);
        opacity: 0;
    }
}

/* 防护统计 */
.protection-stats {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    gap: 20px;
    z-index: 12;
}

.protection-stats .stat-item {
    background: rgba(255,255,255,0.95);
    border: 1px solid rgba(59,130,246,0.2);
    border-radius: 10px;
    padding: 12px 16px;
    text-align: center;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    animation: stat-pulse 3s ease-in-out infinite;
}

@keyframes stat-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.stat-value {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 10px;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 数据流动效果 */
.data-streams {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 8;
    pointer-events: none;
}

.stream {
    position: absolute;
    width: 2px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(59,130,246,0.6) 50%, 
        transparent 100%);
    border-radius: 1px;
}

.stream-1 {
    top: 30%;
    left: 20%;
    width: 150px;
    height: 2px;
    transform: rotate(-30deg);
    animation: stream-flow 4s ease-in-out infinite;
}

.stream-2 {
    bottom: 35%;
    right: 25%;
    width: 120px;
    height: 2px;
    transform: rotate(45deg);
    animation: stream-flow 4s ease-in-out infinite;
    animation-delay: 2s;
}

@keyframes stream-flow {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
}

.stream-particles {
    position: relative;
    width: 100%;
    height: 100%;
}

.stream-particles .particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--primary-blue);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    animation: particle-stream 3s linear infinite;
    box-shadow: 0 0 8px rgba(59,130,246,0.6);
}

.stream-particles .particle:nth-child(1) { animation-delay: 0s; }
.stream-particles .particle:nth-child(2) { animation-delay: 1s; }
.stream-particles .particle:nth-child(3) { animation-delay: 2s; }

@keyframes particle-stream {
    0% { left: -10px; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { left: 100%; opacity: 0; }
}

/* CDN防火墙响应式设计 */
@media (max-width: 1200px) {
    .firewall-shield-enhanced { height: 450px; }
    .shield-core .shield-body { width: 180px; height: 220px; }
    .protection-rings { width: 360px; height: 360px; }
    .ring-1 { width: 250px; height: 250px; }
    .ring-2 { width: 290px; height: 290px; }
    .ring-3 { width: 330px; height: 330px; }
    .protection-stats { bottom: 15px; right: 15px; gap: 15px; }
}

@media (max-width: 768px) {
    .firewall-shield-enhanced { height: 400px; }
    .shield-core .shield-body { 
        width: 150px; 
        height: 180px; 
    }
    .shield-core .shield-icon { font-size: 2.5rem; }
    .protection-rings { 
        width: 300px; 
        height: 300px; 
    }
    .ring-1 { width: 200px; height: 200px; }
    .ring-2 { width: 230px; height: 230px; }
    .ring-3 { width: 260px; height: 260px; }
    .attack-node { transform: scale(0.8); }
    .protection-stats { 
        flex-direction: column; 
        gap: 10px;
        bottom: 10px; 
        right: 10px; 
    }
    .protection-stats .stat-item { padding: 8px 12px; }
    .stat-value { font-size: 14px; }
    .stat-label { font-size: 9px; }
}

@media (max-width: 576px) {
    .firewall-shield-enhanced { height: 350px; }
    .shield-core .shield-body { 
        width: 120px; 
        height: 150px; 
    }
    .shield-core .shield-icon { font-size: 2rem; }
    .protection-rings { 
        width: 250px; 
        height: 250px; 
    }
    .ring-1 { width: 160px; height: 160px; }
    .ring-2 { width: 190px; height: 190px; }
    .ring-3 { width: 220px; height: 220px; }
    .attack-node { transform: scale(0.7); }
    .node-core { width: 50px; height: 50px; }
    .node-core i { font-size: 20px; }
}