/* 全局基础样式 */
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: #333;
            line-height: 1.7;
        }
        /* Redmine #12680：情境圖跟 hero-banner 底部完全貼齊（0px），改成明確留 48px 間距 */
        .banner{
            width: 100%;
            margin: 3rem auto 0;
        }
        /* 滚动进场动画（仅初次触发） */
        .fade-in-once {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-in-once.animated {
            opacity: 1;
            transform: translateY(0);
        }

        /* Hero Banner 区域 */
        .hero-banner {
            position: relative;
            height: auto;
            background: url('/static/appar/images/case/image1.png');
            background-repeat: no-repeat;
            background-size: 100% 100%;
            color: white;
            display: flex;
            align-items: center;
                padding: 11rem 0 3rem;
        }
        .hero-banner::after {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.6);
        }
        .hero-content {
            position: relative;
            z-index: 1;
            width: 100%;
            margin: 1rem auto;
        }
        .tag-label {
            display: inline-block;
            background: rgba(255,255,255,0.2);
            border: 1px solid white;
            border-radius: 2rem;
            padding: 0.3rem 1rem;
            font-size: 1.125rem;
            margin-bottom: 1rem;
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .hero-desc {
            font-size: 1.5rem;
        }

        /* 手机展示区 */
        .phone-showcase {
            margin: 4rem 0;
        }
        .phone-img {
            max-width: 200px;
            margin: 0 auto;
            display: block;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }

        /* 引言引用 */
        .quote-section {
            margin: 3rem 0;
            padding: 2rem 0;
            border-top: 1px solid #eee;
            border-bottom: 1px solid #eee;
        }
        .quote-text {
            width: 100%;
            height: auto;
            font-size: 1.3rem;
            color: #0D0D0D;
            position: relative;
            padding: 0 1rem;
            display: flex;
            justify-content: space-between;
        }
     
        .quote-text img{
            width: 2rem;
            height: 2rem;
        }
        .quote-text div{
            width: 90%;
            height: auto;
            margin: 0.5rem auto;
            color: #0D0D0D;
        }
        .quote-text img:nth-child(1){
            margin-right: 5px;
            position: absolute;
            top: 0;
            left: 0;
        }
        .quote-text img:nth-child(3){
            margin-left: 5px;
            position: absolute;
            bottom: 0;
            right: 0;
        }
        /* 功能卡片 */
        .feature-card {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 1rem;
        }
        .feature-card h5 {
            font-weight: 600;
            margin-bottom: 0.8rem;
        }
        .feature-card ul {
            font-size: 0.9rem;
            color: #666;
            padding-left: 1.2rem;
        }

        /* 成果截图区 */
        .screenshot-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .screenshot-grid img{
            width: 100%;
        }
        .screenshot-item {
            background: #f8f9fa;
            border-radius: 12px;
            overflow: hidden;
        }
        .screenshot-item img {
            width: 100%;
            height: auto;
        }

        /* 视频预览区 */
        .video-preview {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            margin: 2rem 0;
        }
        .video-preview img {
            width: 100%;
        }
        .play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 60px;
            height: 60px;
            background: rgba(255,255,255,0.9);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #333;
            font-size: 1.5rem;
        }

        /* 标签和技术栈 */
        .tag-badges .badge {
            margin: 0.3rem;
            padding: 0.5rem 1rem;
            border-radius: 2rem;
            font-size: 18px;
            background: #fff !important;
            border: 1px solid #FF2200;
            color: #FF2200 !important;
            font-weight: 500;
        }
        .tech-logos {
            display: flex;
            gap: 2rem;
            align-items: center;
            margin-top: 1rem;
        }
        .tech-logos img {
            display: block;
            height: 2.5rem;
            margin: 0 auto;
        }
        .text-muted{
            color: #0D0D0D !important;
        }
         .container, .container-lg, .container-md, .container-sm, .container-xl, .container-xxl {
            padding: 0 3rem;
        }
        /* 1. 手机端 */
        @media screen and (max-width: 799px) {
            .hero-banner {
                height: auto;
                padding: 6rem 0 1rem;
            }
            .hero-content{
                margin-top: 0rem;
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: space-around;
            }
            .tag-label {
                 font-size: 14px;
            }
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .phone-img {
                max-width: 150px;
            }
            .quote-text {
                font-size: 1rem;
                padding: 0 1rem;
            }
             .container, .container-lg, .container-md, .container-sm, .container-xl, .container-xxl {
                padding: 0 24px;
            }
            .quote-text img {
                width: 1.625rem;
                height: 1.625rem;
            }
        }
       
        /* 2. 平板端（768px ~ 1023px） */
        @media screen and (min-width: 799px) and (max-width: 1279px) {
            .tag-label {
                 font-size: 18px;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-desc {
                font-size: 18px;
            }
        }
        /* 1. 引言：30 → 24 → 20 medium */
.text-intro {
  font-size: clamp(20px, 2.5vw, 30px);
  font-weight: 500;
}

/* 2. 段落标题：24 → 20 → 18 medium */
.text-section-title {
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 500;
}

/* 3. 内文标题：30 → 24 → 20 medium */
.text-content-title {
  font-size: clamp(20px, 2.5vw, 30px);
  font-weight: 500;
}

/* 4. 内文：18 → 18 → 16 regular */
.text-body {
  font-size: clamp(16px, 1.2vw, 18px);
  font-weight: 400;
}

/* 5. 主要功能项目标题：24 → 24 → 20 medium */
.text-feature-title {
  font-size: clamp(20px, 2vw, 24px);
  font-weight: 500;
}

/* 6. 主要功能列点内文：18 → 18 → 16 regular */
.text-feature-item {
  font-size: clamp(16px, 1.2vw, 18px);
  font-weight: 400;
}