/* ai_agent.css */
:root {
    --ai-primary: #2E8CFE;
    --ai-primary-light: #F0F7FF;
    --ai-primary-hover: #1e71db;
    --ai-text-main: #333333;
    --ai-text-sub: #666666;
    --ai-bg-gray: #f8f9fa;
    --ai-border: #e0e0e0;
}

/* Base Styles */
body {
    background-color: #fff;
    color: var(--ai-text-main);
    font-family: 'Alibaba PuHuiTi', 'Microsoft YaHei', sans-serif;
}

.ai-container {
    width: 1200px;
    margin: 0 auto;
    max-width: 100%;
    padding: 0 15px;
    box-sizing: border-box;
}

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

.ai-section {
    padding: 80px 0;
}

.ai-bg-gray {
    background-color: var(--ai-bg-gray);
}

.ai-h2 {
    font-size: 32px;
    color: var(--ai-text-main);
    margin-bottom: 20px;
    font-weight: bold;
}

.ai-h3 {
    font-size: 20px;
    color: var(--ai-text-main);
    margin-bottom: 15px;
    font-weight: bold;
}

.ai-section-desc {
    font-size: 16px;
    color: var(--ai-text-sub);
    margin-bottom: 40px;
    line-height: 1.6;
}

/* Buttons */
.ai-btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
    text-align: center;
    border: 1px solid transparent;
}

.ai-btn.primary {
    background-color: var(--ai-primary);
    color: #fff;
}

.ai-btn.primary:hover {
    background-color: var(--ai-primary-hover);
}

.ai-btn.outline {
    background-color: transparent;
    color: var(--ai-primary);
    border-color: var(--ai-primary);
}

.ai-btn.outline:hover {
    background-color: var(--ai-primary-light);
}

.full-width {
    width: 100%;
    box-sizing: border-box;
}

/* 模块1：侧边悬浮锚点导航 */
.ai-anchor-nav {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border-radius: 8px;
    padding: 15px;
    z-index: 999;
    opacity: 0.5;
    transition: opacity 0.3s;
}

.ai-anchor-nav:hover {
    opacity: 1;
}

.ai-anchor-list {
    list-style: none;
    padding: 0;
    margin: 0 0 15px 0;
}

.ai-anchor-list li {
    margin-bottom: 10px;
}

.ai-anchor-list a {
    color: var(--ai-text-sub);
    text-decoration: none;
    font-size: 14px;
    display: block;
    padding: 5px 10px;
    border-radius: 4px;
    transition: all 0.3s;
}

.ai-anchor-list a:hover, .ai-anchor-list a.active {
    color: var(--ai-primary);
    background: var(--ai-primary-light);
    font-weight: bold;
}

.ai-anchor-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    border-top: 1px solid var(--ai-border);
    padding-top: 15px;
}

.ai-btn-mini {
    display: block;
    padding: 8px 15px;
    border-radius: 4px;
    font-size: 12px;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s;
}

.ai-btn-mini.primary {
    background: var(--ai-primary);
    color: #fff;
}

.ai-btn-mini.secondary {
    background: #fff;
    color: var(--ai-primary);
    border: 1px solid var(--ai-primary);
}

/* 模块2：首屏 Hero 区 */
.ai-hero-section {
    padding: 160px 0 100px;
    position: relative;
    overflow: hidden;
    background-color: #0b1120;
    color: #fff;
}

.ai-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../img/home/banner.png') no-repeat center center;
    background-size: cover;
    z-index: 0;
}

.ai-hero-bg-glow {
    position: absolute;
    top: -20%;
    left: -10%;
    width: 60%;
    height: 80%;
    background: radial-gradient(circle, rgba(46, 140, 254, 0.25) 0%, rgba(46, 140, 254, 0) 70%);
    border-radius: 50%;
    filter: blur(60px);
    z-index: 1;
    animation: bg-pulse 8s ease-in-out infinite alternate;
}

@keyframes bg-pulse {
    0% { transform: scale(1) translate(0, 0); opacity: 0.5; }
    100% { transform: scale(1.2) translate(5%, 5%); opacity: 0.8; }
}

.ai-hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* 使用深蓝色到深紫色的渐变叠加，契合AI科技感 */
    background: linear-gradient(135deg, rgba(11, 23, 54, 0.95) 0%, rgba(18, 42, 99, 0.85) 50%, rgba(31, 80, 168, 0.6) 100%);
    z-index: 2;
}

.ai-breadcrumb {
    margin-bottom: 40px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    position: relative;
    z-index: 2;
}

.ai-breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

.ai-breadcrumb a:hover {
    color: #fff;
}

.ai-breadcrumb .active {
    color: var(--ai-primary);
}

.ai-hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 2;
}

.ai-hero-text {
    flex: 0 0 55%;
    padding-right: 50px;
}

.ai-badge-top {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(46, 140, 254, 0.15);
    border: 1px solid rgba(46, 140, 254, 0.3);
    color: #5bb0ff;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 25px;
    letter-spacing: 1px;
}

.ai-h1 {
    font-size: 52px;
    line-height: 1.25;
    color: #fff;
    margin-bottom: 25px;
    font-weight: 800;
    letter-spacing: 1px;
}

.ai-gradient-text {
    background: linear-gradient(90deg, #fff, #5bb0ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ai-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 90%;
}

.ai-trust-badge {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-bottom: 45px;
}

.ai-trust-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #e2e8f0;
    font-size: 15px;
}

.ai-trust-icon {
    width: 20px;
    height: 20px;
    filter: brightness(0) invert(1);
    opacity: 0.8;
}

.ai-hero-actions {
    display: flex;
    gap: 20px;
}

.ai-btn-lg {
    padding: 14px 36px;
    font-size: 16px;
    border-radius: 6px;
    font-weight: 500;
}

.ai-btn.outline {
    background-color: rgba(255, 255, 255, 0.05);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.3);
}

.ai-btn.outline:hover {
    background-color: rgba(255, 255, 255, 0.15);
    border-color: #fff;
}

/* Hero 右侧图像区域 */
.ai-hero-image-wrapper {
    flex: 0 0 45%;
    position: relative;
    text-align: right;
    perspective: 1000px;
}

.ai-hero-image-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(46, 140, 254, 0.4) 0%, rgba(46, 140, 254, 0) 70%);
    z-index: 0;
    border-radius: 50%;
    filter: blur(30px);
    animation: pulse 4s ease-in-out infinite alternate;
}

@keyframes pulse {
    0% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
    100% { transform: translate(-50%, -50%) scale(1.1); opacity: 1; }
}

/* 纯 CSS 绘制 AI 核心大脑网络动画 */
.ai-brain-container {
    position: relative;
    width: 350px;
    height: 350px;
    margin: 0 auto;
    z-index: 1;
    transform-style: preserve-3d;
    perspective: 1000px;
    animation: float 6s ease-in-out infinite;
}

.ai-brain-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, #5bb0ff 20%, #2e8cfe 60%, transparent 100%);
    border-radius: 50%;
    box-shadow: 0 0 40px #2e8cfe, inset 0 0 20px #fff;
    animation: core-pulse 2s ease-in-out infinite alternate;
    z-index: 10;
}

@keyframes core-pulse {
    0% { transform: translate(-50%, -50%) scale(0.9); box-shadow: 0 0 30px #2e8cfe, inset 0 0 10px #fff; }
    100% { transform: translate(-50%, -50%) scale(1.1); box-shadow: 0 0 60px #5bb0ff, inset 0 0 30px #fff; }
}

.ai-brain-orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    border-radius: 50%;
    border: 1px dashed rgba(91, 176, 255, 0.3);
    transform-style: preserve-3d;
}

.orbit-1 {
    width: 200px;
    height: 200px;
    margin-top: -100px;
    margin-left: -100px;
    animation: spin 15s linear infinite;
}

.orbit-2 {
    width: 300px;
    height: 300px;
    margin-top: -150px;
    margin-left: -150px;
    border: 1px dotted rgba(91, 176, 255, 0.2);
    animation: spin-reverse 25s linear infinite;
}

.orbit-3 {
    width: 380px;
    height: 380px;
    margin-top: -190px;
    margin-left: -190px;
    transform: rotateX(60deg) rotateY(20deg);
    animation: spin-3d 20s linear infinite;
}

@keyframes spin { 100% { transform: rotate(360deg); } }
@keyframes spin-reverse { 100% { transform: rotate(-360deg); } }
@keyframes spin-3d { 100% { transform: rotateX(60deg) rotateY(20deg) rotateZ(360deg); } }

.ai-node {
    position: absolute;
    width: 12px;
    height: 12px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 0 15px #fff, 0 0 25px #5bb0ff;
}

.node-a { top: -6px; left: 50%; margin-left: -6px; animation: glow 2s infinite alternate; }
.node-b { bottom: 20px; right: 20px; animation: glow 2s infinite alternate 1s; }
.node-c { top: 40px; left: 40px; animation: glow 2.5s infinite alternate 0.5s; }
.node-d { bottom: -6px; left: 50%; margin-left: -6px; animation: glow 2.5s infinite alternate 1.5s; }
.node-e { top: 50%; right: -6px; margin-top: -6px; width: 16px; height: 16px; background: #5bb0ff; }

@keyframes glow {
    0% { transform: scale(0.8); opacity: 0.6; }
    100% { transform: scale(1.3); opacity: 1; }
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

/* 悬浮卡片效果 */
.ai-float-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 15px 25px;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 2;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.card-icon {
    font-size: 28px;
    font-weight: bold;
    color: #5bb0ff;
    margin-bottom: 5px;
}

.card-text {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.9);
}

.ai-float-card.card-1 {
    top: 15%;
    left: -5%;
    animation: float-card 5s ease-in-out infinite 1s;
}

.ai-float-card.card-2 {
    bottom: 20%;
    right: 5%;
    animation: float-card 6s ease-in-out infinite 0.5s;
}

@keyframes float-card {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

/* 模块3：行业现状与痛点解析区 */
.ai-pain-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.ai-pain-card {
    background: #fff;
    padding: 30px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: all 0.3s;
    border: 1px solid transparent;
}

.ai-pain-card:hover {
    border-color: var(--ai-primary);
    background-color: var(--ai-primary-light);
    transform: translateY(-5px);
}

.ai-pain-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(46, 140, 254, 0.1);
    color: var(--ai-primary);
    border-radius: 12px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.ai-pain-card:hover .ai-pain-icon {
    background-color: var(--ai-primary);
    color: #fff;
    transform: scale(1.1);
}

.ai-pain-card p {
    color: var(--ai-text-sub);
    line-height: 1.6;
    font-size: 14px;
}

.ai-section-conclusion {
    font-size: 18px;
    color: var(--ai-text-main);
    margin-top: 20px;
}

.ai-section-conclusion strong {
    color: var(--ai-primary);
}

/* 模块4：核心产品矩阵区 */
.ai-product-group {
    margin-bottom: 60px;
}

.ai-h3-group {
    font-size: 24px;
    color: var(--ai-text-main);
    margin-bottom: 30px;
    border-left: 4px solid var(--ai-primary);
    padding-left: 15px;
}

.ai-product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.ai-product-card {
    background: #fff;
    border: 1px solid var(--ai-border);
    padding: 25px;
    border-radius: 8px;
    transition: all 0.3s;
}

.ai-product-card:hover {
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    border-color: var(--ai-primary);
}

.ai-product-card h4 {
    font-size: 18px;
    color: var(--ai-primary);
    margin-bottom: 15px;
}

.ai-product-card p {
    font-size: 14px;
    color: var(--ai-text-sub);
    line-height: 1.6;
}

.ai-industry-tabs {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.ai-industry-tabs span {
    padding: 10px 25px;
    background: var(--ai-bg-gray);
    color: var(--ai-text-main);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
}

.ai-industry-tabs span.active, .ai-industry-tabs span:hover {
    background: var(--ai-primary);
    color: #fff;
}

.ai-industry-panel {
    display: none;
    background: #fff;
    border: 1px solid var(--ai-border);
    padding: 30px;
    border-radius: 8px;
}

.ai-industry-panel.active {
    display: block;
}

.ai-industry-panel h4 {
    font-size: 20px;
    margin-bottom: 20px;
}

.ai-industry-panel p {
    margin-bottom: 15px;
    line-height: 1.6;
}

.ai-industry-panel strong {
    color: var(--ai-primary);
}

.ai-deploy-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.ai-deploy-card {
    background: var(--ai-primary-light);
    padding: 30px;
    border-radius: 8px;
}

.ai-deploy-card h4 {
    font-size: 20px;
    color: var(--ai-primary);
    margin-bottom: 15px;
}

/* 模块5：全栈技术实力区 */
.ai-tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.ai-tech-card {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.ai-tech-card .ai-h3 {
    display: flex;
    align-items: center;
}

.ai-tech-card .ai-h3::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 18px;
    background: var(--ai-primary);
    margin-right: 10px;
}

.ai-tech-card p {
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 10px;
}

.ai-tech-card strong {
    color: var(--ai-text-main);
}

/* 模块6：标杆落地案例区 */
.ai-case-filter {
    margin-bottom: 40px;
}

.ai-case-filter span {
    display: inline-block;
    padding: 8px 20px;
    margin: 5px 10px;
    cursor: pointer;
    font-size: 16px;
    color: var(--ai-text-sub);
}

.ai-case-filter span.active, .ai-case-filter span:hover {
    color: var(--ai-primary);
    border-bottom: 2px solid var(--ai-primary);
}

.ai-case-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.ai-case-card {
    display: flex;
    border: 1px solid var(--ai-border);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s;
    background: #fff;
}

.ai-case-card:hover {
    border-color: var(--ai-primary);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    transform: translateY(-5px);
}

.ai-case-img-placeholder {
    width: 220px;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
    background: #111;
}

.ai-abstract-art {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.abstract-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.8;
    z-index: 1;
}

/* 行业主题色板 */
.abstract-bg.manufacturing { background: linear-gradient(135deg, #1A2980 0%, #26D0CE 100%); }
.abstract-bg.energy { background: linear-gradient(135deg, #FF416C 0%, #FF4B2B 100%); }
.abstract-bg.government { background: linear-gradient(135deg, #1D2B64 0%, #F8CDDA 100%); }
.abstract-bg.retail { background: linear-gradient(135deg, #8A2387 0%, #E94057 50%, #F27121 100%); }
.abstract-bg.finance { background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%); }
.abstract-bg.manufacturing-2 { background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%); }

.abstract-icon {
    position: relative;
    z-index: 3;
    width: 64px;
    height: 64px;
    color: #fff;
    opacity: 0.9;
    filter: drop-shadow(0 4px 10px rgba(0,0,0,0.3));
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.ai-case-card:hover .abstract-icon {
    transform: scale(1.15) rotate(5deg);
    filter: drop-shadow(0 0 15px rgba(255,255,255,0.6));
}

/* 制造行业 1：数据流动画 */
.abstract-data-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    opacity: 0.15;
    overflow: hidden;
}

.abstract-data-lines span {
    color: #fff;
    font-family: monospace;
    font-size: 12px;
    white-space: nowrap;
    animation: scrollLeft 10s linear infinite;
}

.abstract-data-lines span:nth-child(2) { animation-direction: reverse; animation-duration: 15s; }
.abstract-data-lines span:nth-child(3) { animation-duration: 8s; font-size: 14px; }

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

/* 能源电力：能量波纹 */
.abstract-energy-waves {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}

.abstract-energy-waves .wave {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    animation: ripple 3s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

.abstract-energy-waves .w1 { width: 40px; height: 40px; animation-delay: 0s; }
.abstract-energy-waves .w2 { width: 40px; height: 40px; animation-delay: 1.5s; }

@keyframes ripple {
    0% { width: 40px; height: 40px; opacity: 1; }
    100% { width: 150px; height: 150px; opacity: 0; border-width: 3px; }
}

/* 政务服务：连接节点 */
.abstract-nodes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.abstract-nodes .node {
    position: absolute;
    width: 6px;
    height: 6px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 0 10px #fff;
    animation: nodePulse 2s infinite alternate;
}

.abstract-nodes .n1 { top: 20%; left: 20%; animation-delay: 0s; }
.abstract-nodes .n2 { top: 70%; left: 30%; animation-delay: 0.5s; }
.abstract-nodes .n3 { top: 40%; right: 20%; animation-delay: 1s; }

.abstract-nodes .node-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    stroke: rgba(255,255,255,0.2);
    stroke-width: 1;
}

@keyframes nodePulse {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(1.5); opacity: 1; }
}

/* 零售电商：雷达扫描 */
.abstract-radar {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.1);
    z-index: 2;
    overflow: hidden;
}

.abstract-radar::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 60px;
    height: 60px;
    background: conic-gradient(from 0deg at 0 0, transparent 0deg, rgba(255,255,255,0.3) 90deg, transparent 90deg);
    transform-origin: 0 0;
    animation: radarSpin 4s linear infinite;
}

@keyframes radarSpin {
    100% { transform: rotate(360deg); }
}

/* 金融保险：区块链模块 */
.abstract-blocks {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.abstract-blocks .block {
    position: absolute;
    width: 30px;
    height: 30px;
    border: 1px solid rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.05);
    animation: floatBlock 6s ease-in-out infinite;
}

.abstract-blocks .b1 { top: 20%; left: 15%; animation-delay: 0s; }
.abstract-blocks .b2 { top: 60%; right: 20%; animation-delay: -2s; width: 40px; height: 40px; }
.abstract-blocks .b3 { bottom: 15%; left: 30%; animation-delay: -4s; width: 20px; height: 20px; }

@keyframes floatBlock {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(10deg); }
}

/* 制造行业 2：点阵矩阵 */
.abstract-matrix {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    z-index: 2;
}

.abstract-matrix i {
    background: rgba(255,255,255,0.2);
    border-radius: 2px;
    animation: matrixFade 2s infinite;
}

.abstract-matrix i:nth-child(1) { animation-delay: 0.1s; }
.abstract-matrix i:nth-child(2) { animation-delay: 0.4s; }
.abstract-matrix i:nth-child(3) { animation-delay: 0.2s; }
.abstract-matrix i:nth-child(4) { animation-delay: 0.5s; }
.abstract-matrix i:nth-child(5) { animation-delay: 0.8s; }
.abstract-matrix i:nth-child(6) { animation-delay: 0.3s; }
.abstract-matrix i:nth-child(7) { animation-delay: 0.6s; }
.abstract-matrix i:nth-child(8) { animation-delay: 0.9s; }
.abstract-matrix i:nth-child(9) { animation-delay: 0.7s; }

@keyframes matrixFade {
    0%, 100% { background: rgba(255,255,255,0.1); }
    50% { background: rgba(255,255,255,0.6); box-shadow: 0 0 5px #fff; }
}

.ai-case-content {
    flex: 1;
    padding: 20px;
}

.ai-case-tag {
    display: inline-block;
    padding: 4px 10px;
    background: var(--ai-primary-light);
    color: var(--ai-primary);
    font-size: 12px;
    border-radius: 4px;
    margin-bottom: 10px;
}

.ai-case-content h3 {
    font-size: 18px;
    margin-bottom: 15px;
}

.ai-case-content p {
    font-size: 14px;
    color: var(--ai-text-sub);
    margin-bottom: 10px;
    line-height: 1.5;
}

.ai-case-content strong {
    color: var(--ai-primary);
}

/* 模块7：全流程服务交付体系区 */
.ai-timeline {
    display: flex;
    justify-content: space-between;
    margin: 60px 0;
    position: relative;
}

.ai-timeline::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--ai-primary);
    z-index: 1;
}

.ai-time-item {
    text-align: center;
    position: relative;
    z-index: 2;
    flex: 1;
}

.ai-time-dot {
    width: 40px;
    height: 40px;
    background: var(--ai-primary);
    color: #fff;
    border-radius: 50%;
    line-height: 40px;
    font-size: 18px;
    font-weight: bold;
    margin: 0 auto 15px;
    box-shadow: 0 0 0 5px var(--ai-bg-gray);
}

.ai-time-item h4 {
    font-size: 18px;
    margin-bottom: 10px;
}

.ai-time-item p {
    font-size: 14px;
    color: var(--ai-text-sub);
}

.ai-promise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.ai-promise-card {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.ai-promise-card h4 {
    font-size: 20px;
    color: var(--ai-primary);
    margin-bottom: 15px;
}

.ai-promise-card p {
    font-size: 15px;
    color: var(--ai-text-sub);
    line-height: 1.6;
}

.ai-promise-card strong {
    color: var(--ai-text-main);
}

/* 模块8：嗨创科技核心竞争优势区（现代企业简约风） */
.ai-adv-modern-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-top: 50px;
}

.ai-adv-modern-card {
    flex: 0 1 calc(33.333% - 20px);
    min-width: 300px;
    max-width: 380px;
    background: #fff;
    border-radius: 12px;
    padding: 40px 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    z-index: 1;
}

.ai-adv-modern-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(46, 140, 254, 0.1);
    border-color: rgba(46, 140, 254, 0.2);
}

.ai-adv-modern-card::before {
    content: '';
    position: absolute;
    top: 0; 
    left: 0;
    width: 4px;
    height: 0;
    background: var(--ai-primary);
    transition: height 0.3s ease;
}

.ai-adv-modern-card:hover::before {
    height: 100%;
}

.ai-adv-icon-box {
    width: 56px;
    height: 56px;
    background: rgba(46, 140, 254, 0.08);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ai-primary);
    margin-bottom: 25px;
    transition: all 0.3s ease;
}

.ai-adv-modern-card:hover .ai-adv-icon-box {
    background: var(--ai-primary);
    color: #fff;
}

.ai-adv-icon-box svg {
    width: 28px;
    height: 28px;
}

.ai-adv-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ai-text-dark);
    margin-bottom: 15px;
}

.ai-adv-desc {
    font-size: 14px;
    color: var(--ai-text-sub);
    line-height: 1.6;
    margin: 0;
}

.ai-adv-watermark {
    position: absolute;
    bottom: -10px;
    right: 15px;
    font-size: 70px;
    font-weight: 800;
    color: rgba(46, 140, 254, 0.04);
    z-index: -1;
    line-height: 1;
    font-family: Arial, sans-serif;
    pointer-events: none;
    transition: color 0.3s ease;
    white-space: nowrap;
}

.ai-adv-modern-card:hover .ai-adv-watermark {
    color: rgba(46, 140, 254, 0.08);
}

/* 响应式适配 */
@media (max-width: 992px) {
        .ai-adv-modern-card {
            flex: 0 1 calc(50% - 15px);
        }
    }
    
    @media (max-width: 768px) {
        .ai-adv-modern-card {
            flex: 0 1 100%;
        }
    }

/* 模块9：客户证言与荣誉资质区 */
.ai-testimonial-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.ai-testimonial-card {
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    position: relative;
}

.ai-testimonial-card::before {
    content: '"';
    font-size: 60px;
    color: var(--ai-primary-light);
    position: absolute;
    top: 20px;
    left: 20px;
    font-family: serif;
    line-height: 1;
}

.ai-quote {
    font-size: 16px;
    line-height: 1.8;
    color: var(--ai-text-sub);
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.ai-author {
    display: flex;
    flex-direction: column;
}

.ai-author strong {
    font-size: 16px;
    color: var(--ai-text-main);
}

.ai-author span {
    font-size: 14px;
    color: #999;
}

.ai-honor-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.ai-honor-item {
    background: linear-gradient(145deg, #ffffff 0%, #f4f8ff 100%);
    border: 1px solid rgba(46, 140, 254, 0.15);
    padding: 25px 20px;
    text-align: center;
    border-radius: 8px;
    color: var(--ai-text-dark);
    font-weight: 600;
    font-size: 15px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(46, 140, 254, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 15px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

/* 增加右上角的装饰色块 */
.ai-honor-item::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, rgba(46, 140, 254, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    transition: all 0.5s ease;
}

.ai-honor-item:hover::before {
    transform: scale(3);
    background: radial-gradient(circle, rgba(46, 140, 254, 0.05) 0%, transparent 70%);
}

.ai-honor-icon {
    width: 48px;
    height: 48px;
    background: #fff;
    border: 1px solid rgba(46, 140, 254, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ai-primary);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    z-index: 1;
}

.ai-honor-icon svg {
    width: 24px;
    height: 24px;
}

.ai-honor-item:hover {
    transform: translateY(-5px);
    background: linear-gradient(145deg, #f0f6ff 0%, #e1edff 100%);
    border-color: rgba(46, 140, 254, 0.3);
    box-shadow: 0 15px 30px rgba(46, 140, 254, 0.12);
}

.ai-honor-item:hover .ai-honor-icon {
    background: linear-gradient(135deg, var(--ai-primary), #00c6ff);
    border-color: transparent;
    color: #fff;
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 5px 15px rgba(46, 140, 254, 0.3);
}

.ai-honor-item:hover span {
    color: var(--ai-primary);
}

/* 模块10：常见问题 FAQ 区 */
.ai-faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.ai-faq-item {
    border-bottom: 1px solid var(--ai-border);
}

.ai-faq-question {
    padding: 20px 0;
    margin: 0;
    cursor: pointer;
    position: relative;
    font-size: 18px;
}

.ai-faq-question::after {
    content: '+';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 24px;
    color: var(--ai-primary);
    transition: transform 0.3s;
}

.ai-faq-question.active::after {
    content: '-';
}

.ai-faq-answer {
    display: none;
    padding-bottom: 20px;
    color: var(--ai-text-sub);
    line-height: 1.8;
    font-size: 15px;
}

.ai-faq-answer strong {
    color: var(--ai-primary);
}

/* 模块11：底部转化 CTA 区 */
.ai-cta-section {
    background: var(--ai-primary-light);
    padding: 60px 0;
}

.ai-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ai-cta-text {
    flex: 1;
    padding-right: 50px;
}

.ai-cta-text h2 {
    font-size: 32px;
    color: var(--ai-text-main);
    margin-bottom: 15px;
}

.ai-cta-text p {
    font-size: 16px;
    color: var(--ai-text-sub);
}

.ai-cta-text strong {
    color: var(--ai-primary);
}

.ai-cta-form {
    flex: 1;
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.ai-input {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 15px;
    border: 1px solid var(--ai-border);
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s;
}

.ai-input:focus {
    border-color: var(--ai-primary);
}

/* 模块12：相关推荐内链区 */
.ai-recommend-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.ai-recommend-card {
    background: #fff;
    padding: 20px;
    text-align: center;
    text-decoration: none;
    color: var(--ai-primary);
    border-radius: 4px;
    border: 1px solid var(--ai-border);
    transition: all 0.3s;
    font-size: 15px;
}

.ai-recommend-card:hover {
    border-color: var(--ai-primary);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

/* ========================================================================= */
/* Responsive Design */
/* ========================================================================= */

@media (max-width: 1200px) {
    .ai-anchor-nav {
        display: none; /* Hide floating nav on smaller screens */
    }
}

@media (max-width: 992px) {
    .ai-h1 {
        font-size: 36px;
    }
    
    .ai-hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .ai-hero-text {
        padding-right: 0;
        margin-bottom: 40px;
    }
    
    .ai-hero-actions {
        justify-content: center;
    }
    
    .ai-pain-grid, .ai-product-grid, .ai-honor-grid, .ai-recommend-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ai-adv-modern-grid {
        flex-direction: column;
        gap: 20px;
    }
    
    .ai-adv-modern-card {
        flex: 0 1 100%;
        padding: 30px 20px;
    }
    
    .ai-cta-inner {
        flex-direction: column;
        gap: 40px;
    }
    
    .ai-cta-text {
        padding-right: 0;
        text-align: center;
    }
    
    .ai-cta-form {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .ai-section {
        padding: 50px 0;
    }

    .ai-h2 {
        font-size: 26px;
    }
    
    .ai-h1 {
        font-size: 28px;
    }

    .ai-subtitle {
        font-size: 16px;
    }
    
    .ai-tech-grid, .ai-case-grid, .ai-deploy-grid, .ai-testimonial-grid {
        grid-template-columns: 1fr;
    }
    
    .ai-timeline {
        flex-direction: column;
        align-items: flex-start;
        padding-left: 20px;
    }
    
    .ai-timeline::before {
        top: 0;
        bottom: 0;
        left: 38px;
        width: 2px;
        height: auto;
    }
    
    .ai-time-item {
        display: flex;
        flex-direction: row;
        align-items: flex-start;
        text-align: left;
        margin-bottom: 30px;
        width: 100%;
    }
    
    .ai-time-dot {
        margin: 0 20px 0 0;
        flex-shrink: 0;
    }

    .ai-time-item h4 {
        margin-top: 8px;
    }
    
    .ai-promise-grid {
        grid-template-columns: 1fr;
    }
    
    .ai-case-card {
        flex-direction: column;
    }
    
    .ai-case-img {
        width: 100%;
        height: 200px;
    }
}

@media (max-width: 480px) {
    .ai-pain-grid, .ai-product-grid, .ai-honor-grid, .ai-recommend-grid {
        grid-template-columns: 1fr;
    }
    
    .ai-hero-actions {
        flex-direction: column;
    }
    
    .ai-adv-list li {
        flex-direction: column;
    }
    
    .ai-adv-num {
        margin-bottom: 10px;
    }
}