:root {
    --primary: #F7931E;
    /* 主色调 */
    --bg: #f8f9fa;
    /* 基础背景 */
    --secondary: #85beff;
    --third: #4A90E2;
    /* 新增科技蓝 */
    --accent: #34C759;
    /* 新增活力绿 */
    --neutral: #8E8E93;
    /* 中性辅助色 */
    --creation-color: #E74C3C;
    /* 创作实验室主题色 */
    --exploration-color: #3498DB;
    /* 探索实验室主题色 */
    --fourth: #4A4A4A;
    /* 辅助色 */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: '微软雅黑', system-ui;
}

body {
    background: var(--bg);
    overflow-x: hidden;
}

.home_bg {
    background: url(/img/bg4.png) no-repeat;
    background-size: cover;
    /* padding-top: 100px; */
    /* padding-bottom: 208px; */
    background-position-x: -1500px;
}

.banner {
    width: 100%;
    height: 700px;
    background: url('/img/poster8.jpg') no-repeat center center/cover;
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    position: relative;

}

@keyframes glitch {
    2% {
        clip-path: inset(20% 0 30% 0);
    }

    4% {
        clip-path: inset(10% 0 60% 0);
    }

    6% {
        clip-path: inset(40% 0 20% 0);
    }

    8% {
        clip-path: inset(30% 0 10% 0);
    }
}

@keyframes slideUp {
    0% {
        transform: translateY(100px);
        opacity: 0;
    }

    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes titleAppear {
    0% {
        letter-spacing: -0.5em;
        filter: blur(12px);
    }

    100% {
        letter-spacing: normal;
        filter: blur(0);
    }
}

@keyframes techFlow {
    0% {
        background-position: 0 0;
    }

    100% {
        background-position: 100% 100%;
    }
}

@keyframes particleMove {
    0% {
        transform: translateY(-20px);
    }

    100% {
        transform: translateY(20px);
    }
}

.banner>.content {
    /* background: rgba(255, 255, 255, 0.9);
    padding: 4vw 6vw;
    border-radius: 10px; */
    white-space: nowrap;
    padding: 50px;
    /* 防止内容换行 */
    /* max-width: 90%;
    overflow: hidden;
    border-left: 5px solid #FFA500; */
}

.banner h1 {
    font-size: calc(40px + 2vw);
    color: #fff;
    margin: 0 0 2vw 0;
    white-space: nowrap;
    -webkit-text-stroke: 1px #e9e9e9;
    /* 描边宽度和颜色 */
    text-stroke: 2px #F7931E;
    /* 标准语法（部分浏览器支持） */
    text-shadow: 4px 5px 7px rgb(0 0 0 / 81%);
    transition: text-shadow 0.3s;
}

.banner h1:hover {
    text-shadow:
        4px 4px 8px rgba(0, 0, 0, 0.5),
        0 0 20px rgba(255, 255, 255, 0.5);
}

.banner p {
    font-size: calc(12px + 1vw);
    margin: 1vw 0;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #fff;
    transform: scaleX(0);
    font-weight: 600;
    text-shadow: 4px 5px 7px rgb(0 0 0 / 81%);
}

/* 文字入场动画 */
.animate-slideUp {
    animation: slideUp 1s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

.gradient-title.animate-title {
    animation: titleAppear 1.2s 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.highlight.animate-highlight {
    animation: scaleIn 0.6s 1s ease-out forwards;
    /* transform-origin: left center; */
}

.feature-item {
    opacity: 0;
    transform: translateX(-50px);
}


/* 装饰文字动画 */
.animate-flicker {
    animation: flicker 2s infinite alternate;
}

.animate-glitch {
    animation: glitch 1s infinite linear alternate;
}

/* 关键帧定义 */
@keyframes scaleIn {
    0% {
        transform: scaleX(0);
    }

    100% {
        transform: scaleX(1);
    }
}

@keyframes itemSlide {
    to {
        opacity: 1;
        /* transform: translateX(-50px); */
    }
}

@keyframes flicker {

    0%,
    19%,
    21%,
    23%,
    25%,
    54%,
    56%,
    100% {
        opacity: 0.1;
    }

    20%,
    24%,
    55% {
        opacity: 0.3;
    }
}

.content-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.23, 1, 0.32, 1);
    padding-bottom: 50px;
}

.content-wrapper.active {
    opacity: 1;
    transform: translateY(0);
}

.main-title {
    text-align: center;
    font-size: 2.8rem;
    color: var(--primary);
    margin: 5rem 0 0 0;
    position: relative;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.main-title::after {
    content: '';
    display: block;
    width: 120px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    margin: 1rem auto;
    border-radius: 2px;
}

/* 内容区块 */
.content-block {
    display: flex;
    gap: 2rem;
    margin: 1rem auto;
    max-width: 1200px;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.content-block:hover {
    transform: translateY(-5px);
}

/* 图片容器 */
.image-container {
    flex: 1;
    min-width: 300px;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.image-container:hover img {
    transform: scale(1.05);
}

/* 文字特效区块 */
.text-content {
    flex: 1;
    padding: 2rem 0 2rem 1rem;
    position: relative;
}

/* 政策标题样式 */
.policy-title {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    padding-left: 2rem;
    position: relative;
}

.policy-title::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--secondary);
    animation: blink 1.5s infinite;
}

/* 时间线样式 */
.stage1 .timeline {
    border-left: 3px solid var(--primary);
    padding-left: 1rem;
    margin-left: 1rem;
}

.stage1 .timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: linear-gradient(90deg, #fff7e6 50%, white);
    border-radius: 8px;
}


/* 项目符号增强 */
.policy-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
    line-height: 1.8;
    list-style-type: none;
}

.policy-list li::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    background: var(--secondary);
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.2);
}

/* 动画效果 */
@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}


.stage2 {
    /* background-color: #FFFDFD; */
    /* background: url(/img/home_bg.png) no-repeat;
    background-size: cover;
    background-position-y:  -612px; */
}

.stage1{
    background-color: #e7e7e7;
    /* background: url(/img/home_bg.png) no-repeat;
    background-size: cover;
    background-position-y: -1079px; */
}
.stage3 {
    background-color: #e9e9e9;
}


.stage4 {
    /* background: url(/img/home_bg.png) no-repeat;
    background-size: cover;
    background-position-y: -1807px; */
}
.stage5 {
    background-color: #F1F3F5;
    padding-bottom: 100px;
}

/*part3*/
/* 动态卡片容器 */
.stage2 .dynamic-section {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    padding: 3rem 5%;
    background: linear-gradient(15deg, #fff5e6 0%, #ffffff 100%);
}

/* 卡片动画效果 */
.stage2 .dynamic-card {
    flex: 1 1 45%;
    min-width: 300px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(255, 165, 0, 0.1);
    overflow: hidden;
    transition: transform 0.4s ease, box-shadow 0.3s ease;
    opacity: 0;
    animation: cardEntrance 0.6s ease forwards;
}

@keyframes cardEntrance {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stage2 .dynamic-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 40px rgba(255, 165, 0, 0.2);
}

/* 图片动态效果 */
.stage2 .card-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    position: relative;
}

.stage2 .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.25, 0.45, 0.45, 0.95);
}

.stage2 .dynamic-card:hover .card-image img {
    transform: scale(1.08);
}

/* 文字内容区 */
.stage2 .card-content {
    padding: 2rem;
    position: relative;
}

/* 标题特效 */
.stage2 .card-title {
    color: var(--primary);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    position: relative;
    padding-left: 2rem;
}

.stage2 .card-title::before {
    content: '★';
    position: absolute;
    left: 0;
    top: -2px;
    color: var(--secondary);
    animation: starPulse 1.5s infinite;
}

@keyframes starPulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.2);
    }
}

/* 正文排版 */
.stage2 .card-text {
    color: #555;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.stage2 .card-text li {
    position: relative;
    padding: 10px 56px;
    /* margin-bottom: 15px; */
    /* background: rgba(255, 165, 0, 0.08); */
    /* border-left: 3px solid var(--primary); */
    /* border-radius: 4px; */
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    counter-increment: step-counter;
    list-style: none;
}

/* 数字序号样式 */
.stage2 .card-text li::before {
    content: counter(step-counter);
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
    box-shadow: 0 2px 6px rgba(255, 165, 0, 0.2);
}

/* 悬停动效 */
.stage2 .card-text li:hover {
    transform: translateX(10px);
    box-shadow: 2px 4px 12px rgba(0, 0, 0, 0.08);
    background: rgba(255, 165, 0, 0.12);
}

/* 技术术语高亮 */
.stage2 .card-text li strong {
    color: var(--primary);
    font-weight: 600;
    position: relative;
}

.stage2 .industry-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin: 2rem 0;
}

.stage2 .stat-item {
    position: relative;
    padding: 1.2rem;
    background: rgba(255, 165, 0, 0.08);
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s ease;
    counter-increment: stats-counter;
}

.stage2 .stat-item::before {
    content: counter(stats-counter);
    position: absolute;
    left: -12px;
    top: -12px;
    width: 28px;
    height: 28px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    box-shadow: 0 3px 6px rgba(255, 165, 0, 0.2);
}

.stage2 .stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(255, 165, 0, 0.1);
}

.stage2 .stat-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.stage2 .stat-item:hover::after {
    opacity: 1;
}


/* 专家引言样式 */
.stage2 .expert-quote {
    border-left: 3px solid var(--primary);
    padding-left: 1.5rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: #666;
    position: relative;
}

.stage2 .expert-quote::after {
    content: '”';
    position: absolute;
    right: -10px;
    bottom: -15px;
    font-size: 2em;
    color: var(--primary);
    opacity: 0.3;
}

/* 技术术语高亮 */
.stage2 .tech-term {
    color: var(--primary);
    font-weight: 600;
    text-shadow: 1px 1px 2px rgba(255, 165, 0, 0.1);
}

.stage2 .tech-term2 {
    color: #00D0FC;
    font-weight: 600;
    text-shadow: 1px 1px 2px rgba(255, 165, 0, 0.1);
}

/* 技术流程容器 */
.stage2 .tech-process {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    margin: 2rem 0;
    background: rgba(255, 165, 0, 0.05);
    border-radius: 12px;
    position: relative;
}

/* 流程步骤 */
.stage2 .process-step {
    flex: 1;
    text-align: center;
    padding: 1rem;
    position: relative;
    transition: all 0.3s ease;
}

/* 步骤编号 */
.stage2 .process-step::before {
    content: '';
    width: 30px;
    height: 30px;
    background: #FFA500;
    border-radius: 50%;
    display: block;
    margin: 0 auto 1rem;
    box-shadow: 0 4px 10px rgba(255, 165, 0, 0.3);
}

/* 动态连接线 */
.stage2 .process-step::after {
    content: '➔';
    position: absolute;
    right: -25px;
    top: 50%;
    transform: translateY(-50%);
    color: #FFA500;
    font-size: 1.5rem;
    opacity: 0.6;
    animation: flowArrow 1.5s infinite;
}

/* 去除最后一个箭头 */
.stage2 .process-step:last-child::after {
    display: none;
}

@keyframes flowArrow {

    0%,
    100% {
        transform: translateY(-50%) scale(1);
    }

    50% {
        transform: translateY(-50%) scale(1.2);
    }
}

/* 步骤激活效果 */
.stage2.process-step:hover {
    transform: translateY(-5px);
    background: rgba(255, 165, 0, 0.1);
    border-radius: 8px;
}

.stage2 .process-step p {
    color: #787878;
}

/*part 3*/
.stage3 .curriculum-section {
    width: 100%;
    margin: 40px auto;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.stage3 .text-content h2 {
    color: #2d4059;
    font-size: 2rem;
    margin-bottom: 25px;
    padding-left: 20px;
    background: linear-gradient(135deg, var(--primary), #FFD60A);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    border-left: 4px solid var(--third);
}

.stage3 .highlight {
    color: #FFA500;
    font-size: 1.1em;
    font-weight: 600;
    margin: 15px 0;
}

.stage3 .emphasize {
    color: var(--third);
    font-weight: 600;
    position: relative;
}

.stage3 .emphasize::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--third), var(--accent));
}

.stage3 .features {
    margin: 20px 0;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.stage3 .feature-tag {
    background: rgba(255, 165, 0, 0.1);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 20px;
    border: 1px solid rgba(255, 165, 0, 0.3);
}

.stage3 .feature-tag:nth-child(2) {
    background: rgba(78, 154, 212, 0.1);
    color: var(--third);
    border-color: rgba(78, 154, 212, 0.3);
}

.stage3 .feature-tag:nth-child(3) {
    background: rgba(52, 199, 89, 0.1);
    color: var(--accent);
    border-color: rgba(52, 199, 89, 0.3);
}

.stage3 .standards-visual {
    margin-top: 40px;
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.stage3 .standards-image {
    width: 100%;
    height: auto;
    display: block;
    border-bottom: 2px solid #FFA500;
}

.stage3 .annotation {
    position: absolute;
    bottom: 15px;
    right: 20px;
    border: 1px solid var(--third);
    background: rgba(255, 255, 255, 0.95);
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 0.9em;
    color: #2d4059;
    box-shadow: 0 2px 8px rgba(78, 154, 212, 0.15);
}

/*part 3 end*/
/* 阶段导航 */
/* 实验室大类容器 */
.stage4 .lab-container {
    margin: 40px auto;
    width: 100%;
    padding: 20px;
}

/* 实验室标题 */
.stage4 .lab-title {
    margin-bottom: 30px;
    padding-left: 50px;
    position: relative;
}

.stage4 .lab-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 35px;
    height: 65px;
    background-size: contain;
}

.stage4 .creation .lab-title::before {
    background: url('data:image/svg+xml;utf8,<svg .../>') var(--creation-color);
    /* 替换为实际图标 */
}

.stage4 .exploration .lab-title::before {
    background: url('data:image/svg+xml;utf8,<svg .../>') var(--exploration-color);
}

/* 时间轴容器 */
.stage4 .timeline {
    display: flex;
    padding: 40px 0;
    position: relative;
}

/* .stage4 .timeline::after {
    content: '';
    position: absolute;
    left: 5%;
    right: 5%;
    top: 50%;
    height: 4px;
    background: #ddd;
    z-index: 1;
} */

/* 阶段卡片 */
.stage4 .stage {
    flex: 1;
    min-width: 280px;
    margin: 0 30px;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    position: relative;
}

.stage4 .stage::after {
    content: '\f061';
    /* FontAwesome箭头图标 */
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    /* color: #E74C3C; */
    font-size: 24px;
    position: absolute;
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
}

.stage4 .stage:last-child::after {
    display: none;
}

.stage4 .stage:hover {
    transform: translateY(-10px);
}

/* 阶段编号 */
.stage4 .stage-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: bold;
    position: absolute;
    left: 50%;
    top: -30px;
    transform: translateX(-50%);
}

.stage4 .creation .stage-number {
    background: var(--creation-color);
    color: white;
}

.stage4 .exploration .stage-number {
    background: var(--exploration-color);
    color: white;
}

.creation-stage {
    border-top: 4px solid var(--creation-color);
}

.exploration-stage {
    border-top: 4px solid var(--exploration-color);
}

.creation-stage::after {
    color: var(--creation-color);
}

.exploration-stage::after {
    color: var(--exploration-color);
}

/* 课程内容 */
.stage4 .stage-content {
    margin-top: 40px;
}

.stage4 .stage h3 {
    color: #2C3E50;
    margin-bottom: 15px;
    min-height: 60px;
}

.stage4 .stage p {
    color: #666;
    line-height: 1.8;
    margin: 10px 0;
}

/* 双实验室区分 */
.stage4 .creation .stage {
    border-top: 4px solid var(--creation-color);
}

.stage4 .exploration .stage {
    border-top: 4px solid var(--exploration-color);
}

/* stage5 */
 /* 标题模块 */
 .stage5 .header {
    text-align: center;
    margin-bottom: 60px;
}
.header h1 {
    color: var(--primary);
    font-size: 2.8rem;
    margin-bottom: 20px;
}
.header p {
    color: var(--secondary);
    font-size: 1.2rem;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
}
/* 作品展示区 */
.projects-section {
    margin-bottom: 60px;
}
.section-title {
    color: var(--primary);
    font-size: 2rem;
    border-left: 4px solid var(--primary);
    padding-left: 15px;
    margin: 40px 0 120px 0;
}
/* 作品展示区 */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}
.project-card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 8px 20px rgba(255,102,0,0.1);
    transition: transform 0.3s;
}
.project-card:hover {
    transform: translateY(-5px);
}
.project-img {
    /* width: 100%; */
    height: 282px;
    object-fit: cover;
    border-radius: 8px;
    /* margin-bottom: 20px; */
}
.project-title {
    color: var(--primary);
    font-size: 1.4rem;
    text-align: center;
}
.pbl-container {
    position: relative;
    width: 900px;
    height: 700px;
    margin: 0 auto;
}

/* 中心核心 */
.core {
    width: 700px;
    height: 700px;
    /* background: var(--primary); */
    border-radius: 50%;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 0 30px rgb(255 102 0 / 46%)
}

/* 环绕步骤 */
.pbl-step {
    width: 200px;
    height: 200px;
    background: var(--primary);
    border: 3px solid #fcc788eb;;
    border-radius: 50%;
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 15px;
    transition: all 0.3s;
    cursor: pointer;
    color:#fff;
    font-size: 1.8rem;
    box-shadow: 0 0 30px rgb(255 102 0 / 46%)
}

/* 文字说明 */
.step-desc {
    position: absolute;
    width: 300px;
    padding: 15px;
    background: linear-gradient(135deg,  var(--primary),#fff);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    text-align: left;
    color:var(--fourth);
    font-size: 1.0rem;
}

/* 步骤定位 */
.step-1 {
    top: -10%;
    left: 40%;
    /* transform: translateX(-50%); */
}
.step-1 .step-desc {
    top: -6%;
    left: 182%;
    transform: translateX(-50%);
}

.step-2 {
    top: 25%;
    right: 5%;
}
.step-2 .step-desc {
    top: 0%;
    left: 190px;
    transform: translateY(-50%);
}

.step-3 {
    bottom: -2%;
    right: 15%;
}
.step-3 .step-desc {
    top: -30%;
    left: 200px;
    transform: translateY(50%);
}

.step-4 {
    bottom: -5%;
    left: 23%;
    /* transform: translateX(-50%); */
}
.step-4 .step-desc {
    top: -23%;
    left: -75%;
    transform: translateX(-50%);
}

.step-5 {
    top: 25%;
    left: 5%;
}
.step-5 .step-desc {
    top: 0%;
    right: 190px;
    transform: translateY(-50%);
}

/* 悬停效果 */
.pbl-step:hover {
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(255,102,0,0.3);
}
.pbl-step:hover .step-desc {
    opacity: 1;
}
.pbl-img {
    width: 300px;
}
@media (max-width: 768px) {

    .image-section {
        min-width: auto;
    }

    h1 {
        font-size: 1.8rem;
    }

    .content-block {
        flex-direction: column;
        padding: 1rem;
    }

    .image-container {
        min-width: auto;
    }

    .dynamic-card {
        flex-basis: 100%;
    }

    .card-image {
        height: 200px;
    }

    .industry-stats {
        grid-template-columns: 1fr;
    }

    .stat-item {
        margin-bottom: 1rem;
    }

    .tech-process {
        flex-direction: column;
    }

    .process-step {
        width: 100%;
        margin-bottom: 2rem;
    }

    .process-step::after {
        right: auto;
        bottom: -30px;
        top: auto;
        transform: rotate(90deg);
    }

    .stage4 .timeline {
        flex-direction: column;
    }

    .stage4 .stage {
        margin: 20px 0;
    }

    .stage4 .stage::after {
        content: '\f107';
        /* 向下箭头 */
        right: 50%;
        top: auto;
        bottom: -40px;
        transform: translateX(50%) rotate(90deg);
    }
}
@media screen and (min-width: 1400px) {
    .animate-item-1 {
        animation: itemSlide 0.6s 1.2s forwards;
    }
    
    .animate-item-2 {
        animation: itemSlide 0.6s 1.4s forwards;
    }
    
    .animate-item-3 {
        animation: itemSlide 0.6s 1.6s forwards;
    }
    .animate-item-4 {
        animation: itemSlide 0.6s 1.8s forwards;
    }
    
.animate-item-5 {
    animation: itemSlide 0.6s 2.0s forwards;
}
}