* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        /* 包装容器 - 根据内容自适应高度 */
        .process-flow-wrapper {
            width: 100%;
            background: #D1E0FF;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }
        
        .process-flow { 
            width: 100%;
            max-width: 1920px;
            margin: 0 auto;
            position: relative;
            padding: 40px 0;
            background: transparent;
        }
        
        .flow-container { 
            position: relative;
            padding: 0 100px 0 160px;
        }
        
        .cards-top { 
            margin-bottom: 60px;
            position: relative;
            z-index: 3;
        }
        
        .cards-bottom { 
            margin-top: 60px;
            position: relative;
            z-index: 3;
        }

        .timeline-container { 
            position: absolute;
            top: 50%;
            left: 160px;
            right: 100px;
            height: 2px;
            transform: translateY(-50%);
            z-index: 2;
        }
        
        .timeline-line { 
            position: absolute;
            inset:0;
            background: linear-gradient(90deg, #3B82F6, #60A5FA, #93C5FD);
            height: 2px;
        }

        .step-marker { 
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 36px;
            height: 36px;
            background: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #3B82F6;
            font-weight: bold;
            cursor: pointer;
            z-index: 4;
            border: 2px solid #ffffff;
            box-shadow: 0 0 6px rgba(59, 130, 246, 0.3);
            transition: all 0.3s ease;
            font-size: 14px;
        }
        
        .step-marker.active { 
            background: #3B82F6;
            color: #ffffff;
            box-shadow: 0 0 12px rgba(59, 130, 246, 0.6);
            transform: translateY(-50%) scale(1.1);
        }

        .three-point-line { 
            position: absolute;
            width: 1.5px;
            background: linear-gradient(to bottom, #3B82F6, #60A5FA, #93C5FD);
            opacity: 0;
            transform: translateX(-50%);
            transition: all 0.3s ease;
            z-index: 1;
        }
        
        .three-point-line.active { 
            opacity: 1;
        }
        
        .three-point-line.half-top { 
            transform-origin: bottom;
            opacity: 1;
        }
        
        .three-point-line.half-bottom { 
            transform-origin: top;
            opacity: 1;
        }

        /* 角色按钮 */
        .role-button-container {
            position: absolute;
            left: -100px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 5;
        }
        
        .cards-top .role-button-container {
            top: 50%;
            transform: translateY(-50%);
        }
        
        .cards-bottom .role-button-container {
            top: 50%;
            transform: translateY(-50%);
        }
        
        .role-button {
            background: #ffffff;
            border: 2px solid #93C5FD;
            border-radius: 8px;
            padding: 14px 24px;
            font-size: 16px;
            font-weight: 600;
            color: #333333;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
            box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
            white-space: nowrap;
            min-width: 110px;
        }
        
        .role-button:hover {
            background: #E6F2FF;
            border-color: #3B82F6;
        }
        
        .role-button.active {
            background: #3B82F6;
            color: #ffffff;
            border-color: #3B82F6;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(59, 130, 246, 0.3);
        }

        .cards-row { 
            display: flex;
            justify-content: space-between;
            gap: 15px;
            padding-left: 0;
        }
        
        .process-card { 
            flex: 1;
            background: #ffffff;
            border-radius: 8px;
            padding: 20px;
            border: 2px solid #BFDBFE;
            opacity: 1;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            position: relative;
            height: 180px;
            min-height: 180px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        
        .process-card.active { 
            border-color: #3B82F6;
            border-width: 3px;
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
        }
        
        .process-card ul { 
            padding-left: 0;
            font-size: 14px;
            color: #444444;
            line-height: 1.5;
            margin: 0;
            font-weight: 500;
        }
        
        .process-card.active ul { 
            color: #222222;
        }
        
        .process-card li { 
            margin-bottom: 8px;
            list-style-type: none;
            position: relative;
            padding-left: 18px;
        }
        
        .process-card li:before { 
            content: "•";
            color: #3B82F6;
            font-weight: bold;
            position: absolute;
            left: 0;
            font-size: 20px;
            line-height: 1;
        }

        /* 大屏幕优化 */
        @media (min-width: 1600px) {
            .process-flow-wrapper {
                background: #C8D9FF;
            }
            
            .process-flow {
                padding: 40px 0;
            }
            
            .flow-container {
                padding: 0 120px 0 180px;
            }
            
            .timeline-container {
                left: 180px;
                right: 120px;
            }
            
            .process-card {
                padding: 22px;
                height: 200px;
                min-height: 200px;
            }
            
            .process-card ul {
                font-size: 15px;
                color: #444444;
            }
            
            .role-button {
                font-size: 18px;
                padding: 16px 28px;
                min-width: 130px;
                color: #333333;
            }
            
            .role-button-container {
                left: -120px;
            }
        }

        /* 中等屏幕 */
        @media (max-width: 1200px) {
            .process-flow-wrapper {
                background: #D1E0FF;
            }
            
            .process-flow {
                padding: 30px 0;
            }
            
            .flow-container {
                padding: 0 60px 0 130px;
            }
            
            .timeline-container {
                left: 130px;
                right: 60px;
            }
            
            .process-card {
                padding: 16px;
                height: 160px;
                min-height: 160px;
            }
            
            .process-card ul {
                font-size: 13px;
                line-height: 1.4;
                color: #444444;
            }
            
            .role-button {
                font-size: 14px;
                padding: 12px 18px;
                min-width: 90px;
                color: #333333;
            }
            
            .role-button-container {
                left: -90px;
            }
        }

        /* 平板 */
        @media (max-width: 992px) {
            .process-flow-wrapper {
                background: #D1E0FF;
            }
            
            .process-flow {
                padding: 25px 0;
            }
            
            .flow-container {
                padding: 0 40px 0 100px;
            }
            
            .timeline-container {
                left: 100px;
                right: 40px;
            }
            
            .cards-row {
                flex-wrap: wrap;
                gap: 12px;
            }
            
            .process-card {
                min-width: calc(50% - 12px);
                margin-bottom: 12px;
                padding: 14px;
                height: 150px;
                min-height: 150px;
            }
            
            .cards-top {
                margin-bottom: 50px;
            }
            
            .cards-bottom {
                margin-top: 50px;
            }
            
            .process-card ul {
                font-size: 12.5px;
                line-height: 1.4;
                color: #444444;
            }
            
            .role-button {
                font-size: 13px;
                padding: 10px 14px;
                min-width: 80px;
                color: #333333;
            }
            
            .role-button-container {
                left: -80px;
            }
        }

        /* 移动端 - 768px以下 */
        @media (max-width: 768px) {
            .process-flow-wrapper {
                background: #D1E0FF;
            }
            
            .process-flow {
                padding: 20px 0;
            }
            
            .flow-container {
                padding: 0 15px !important;
            }
            
            /* 隐藏PC端的所有内容 */
            .timeline-container,
            .step-marker,
            .three-point-line,
            .cards-top,
            .cards-bottom {
                display: none !important;
            }
            
            /* 显示移动端容器 */
            .mobile-process-container {
                display: block !important;
            }
            
            /* 移动端顶部按钮 */
            .mobile-top-buttons {
                display: flex;
                justify-content: center;
                gap: 15px;
                margin-bottom: 25px;
                width: 100%;
            }
            
            .mobile-top-buttons .role-button {
                padding: 12px 20px;
                font-size: 16px;
                min-width: 120px;
                background: #ffffff;
                border: 2px solid #93C5FD;
                border-radius: 8px;
                color: #333333;
                cursor: pointer;
                transition: all 0.3s ease;
                text-align: center;
                box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
                white-space: nowrap;
            }
            
            .mobile-top-buttons .role-button.active {
                background: #3B82F6;
                color: #ffffff;
                border-color: #3B82F6;
                transform: translateY(-2px);
                box-shadow: 0 5px 15px rgba(59, 130, 246, 0.3);
            }
            
            /* 移动端卡片布局 */
            .mobile-step-container {
                margin-bottom: 25px;
                width: 100%;
            }
            
            /* 修改这里，Step颜色加深 */
            .mobile-step-title {
                text-align: center;
                font-size: 18px;
                font-weight: bold;
                color: #1D4ED8; /* 深蓝文字 */
                margin-bottom: 15px;
                padding: 8px 0;
                background: rgba(29, 78, 216, 0.15); /* 深蓝透明背景 */
                border-radius: 6px;
                width: 100%;
            }
            
            .mobile-cards-row {
                display: flex;
                gap: 10px;
                margin-bottom: 15px;
                width: 100%;
            }
            
            .mobile-card {
                flex: 1;
                background: #ffffff;
                border-radius: 8px;
                padding: 15px;
                border: 2px solid #BFDBFE;
                min-height: 140px;
                cursor: pointer;
                transition: all 0.3s ease;
                box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
                width: 50%;
            }
            
            .mobile-card.active {
                border-color: #3B82F6;
                border-width: 3px;
                transform: translateY(-2px);
                box-shadow: 0 6px 15px rgba(59, 130, 246, 0.25);
            }
            
            .mobile-card ul {
                padding-left: 0;
                font-size: 13px;
                color: #444444;
                line-height: 1.4;
                margin: 0;
            }
            
            .mobile-card li {
                margin-bottom: 6px;
                list-style-type: none;
                position: relative;
                padding-left: 16px;
                font-size: 13px;
            }
            
            .mobile-card li:before {
                content: "•";
                color: #3B82F6;
                font-weight: bold;
                position: absolute;
                left: 0;
                font-size: 18px;
                line-height: 1;
            }
        }

        /* 超小屏幕 */
        @media (max-width: 480px) {
            .mobile-top-buttons {
                gap: 10px;
                margin-bottom: 20px;
            }
            
            .mobile-top-buttons .role-button {
                padding: 10px 16px;
                font-size: 14px;
                min-width: 100px;
            }
            
            .mobile-step-container {
                margin-bottom: 20px;
            }
            
            .mobile-step-title {
                font-size: 16px;
                margin-bottom: 12px;
                padding: 6px 0;
                color: #1D4ED8; /* 深蓝文字 */
                background: rgba(29, 78, 216, 0.15); /* 深蓝透明背景 */
            }
            
            .mobile-cards-row {
                gap: 8px;
                margin-bottom: 12px;
            }
            
            .mobile-card {
                padding: 12px;
                min-height: 130px;
            }
            
            .mobile-card ul {
                font-size: 12px;
            }
            
            .mobile-card li {
                font-size: 12px;
                margin-bottom: 5px;
                padding-left: 14px;
            }
        }