/* --- 核心可视区 --- */
.main-viewport {
    flex: 1;
    position: relative;
    height: 100vh;
    overflow: hidden;
}

/* --- 楼层容器：支持上下楼层切换 --- */
.floors-container {
    width: 100%;
    height: 300vh; /* 3 层：教程、工作台、最佳实践 */
    transition: transform var(--transition);
    will-change: transform;
    /* 初始显示工作台（第二层），不改变首屏视觉 */
    transform: translateY(-100vh);
}

.floors-container.is-tutorial {
    /* 切到"教程页"（第一层），工作台会往下移动 */
    transform: translateY(0);
}

.floors-container.is-practices {
    /* 切到"最佳实践页"（第三层），工作台会往上移动 */
    transform: translateY(-200vh);
}

 .floor {
     height: 100vh;
     width: 100%;
     display: flex;
     align-items: center;
     justify-content: center;
     position: relative;
 }

 /* 教程页容器 */
.tutorial-container {
    position: absolute;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    width: 1100px;
    max-width: 92vw;
    height: calc(100vh - 160px);
    display: flex;
    gap: 24px;
    z-index: 5;
}

/* 左侧步骤导航 */
.tutorial-sidebar {
    width: 240px;
    flex-shrink: 0;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.tutorial-sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border-color);
}

.tutorial-sidebar-header h2 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-main);
    line-height: 1.4;
}

.tutorial-steps {
    flex: 1;
    overflow-y: auto;
    padding: 16px 12px;
}

.tutorial-step-item {
    padding: 12px 16px;
    margin-bottom: 4px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 14px;
    position: relative;
}

.tutorial-step-item:hover {
    background: #F8FAFC;
    color: var(--text-main);
}

.tutorial-step-item.active {
    background: rgba(109, 213, 232, 0.08);
    color: var(--trace-active);
    font-weight: 500;
}

.tutorial-step-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 20px;
    background: var(--trace-active);
    border-radius: 0 2px 2px 0;
}

.tutorial-step-number {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    background: #F1F5F9;
    color: var(--text-secondary);
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.tutorial-step-item.active .tutorial-step-number {
    background: var(--trace-active);
    color: #fff;
}

.tutorial-step-text {
    flex: 1;
    line-height: 1.4;
}

/* 主内容区 */
.tutorial-main {
    flex: 1;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.tutorial-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 32px 40px;
}

.tutorial-content-section {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tutorial-content-section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tutorial-section-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-main);
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.tutorial-section-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0 0 32px 0;
    line-height: 1.6;
}

/* 功能卡片 */
.tutorial-feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 24px;
}

.tutorial-feature-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    background: #fff;
    transition: all 0.2s ease;
    cursor: pointer;
    position: relative;
}

.tutorial-feature-card::after {
    content: '';
    position: absolute;
    top: 16px;
    right: 16px;
    width: 24px;
    height: 24px;
    background: rgba(109, 213, 232, 0.1);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236DD5E8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolygon points='5 3 19 12 5 21 5 3'%3E%3C/polygon%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 14px;
}

.tutorial-feature-card:hover::after {
    opacity: 1;
}

.tutorial-feature-card:hover {
    border-color: var(--trace-active);
    box-shadow: 0 4px 16px rgba(109, 213, 232, 0.12);
    transform: translateY(-2px);
}

.tutorial-feature-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.tutorial-feature-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(109, 213, 232, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--trace-active);
}

.tutorial-feature-icon svg {
    width: 20px;
    height: 20px;
}

.tutorial-feature-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    margin: 0;
    line-height: 1.4;
}

.tutorial-feature-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.tutorial-feature-list {
    margin: 20px 0 0 0;
    padding: 0;
    list-style: none;
}

.tutorial-feature-list li {
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-main);
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.tutorial-feature-list li::before {
    content: '';
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--trace-active);
    margin-top: 8px;
    flex-shrink: 0;
}

/* 底部导航 */
.tutorial-footer {
    padding: 20px 40px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #FAFBFC;
}

.tutorial-nav-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: #fff;
    color: var(--text-main);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.tutorial-nav-btn:hover:not(:disabled) {
    border-color: var(--trace-active);
    color: var(--trace-active);
    background: rgba(109, 213, 232, 0.05);
}

.tutorial-nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: #F8FAFC;
}

.tutorial-nav-btn svg {
    width: 16px;
    height: 16px;
}

.tutorial-progress {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.tutorial-progress-text {
    color: var(--text-main);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .tutorial-container {
        width: 95vw;
        gap: 16px;
    }
    
    .tutorial-sidebar {
        width: 200px;
    }
    
    .tutorial-feature-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .tutorial-container {
        flex-direction: column;
        height: auto;
        min-height: calc(100vh - 160px);
        top: 60px;
    }
    
    .tutorial-sidebar {
        width: 100%;
        height: auto;
        max-height: 200px;
    }
    
    .tutorial-steps {
        display: flex;
        overflow-x: auto;
        overflow-y: hidden;
        padding: 12px;
        gap: 8px;
    }
    
    .tutorial-step-item {
        flex-shrink: 0;
        min-width: 120px;
        margin-bottom: 0;
    }
    
    .tutorial-content {
        padding: 24px 20px;
    }
    
    .tutorial-footer {
        padding: 16px 20px;
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .tutorial-nav-btn {
        flex: 1;
        min-width: 100px;
    }
    
    .tutorial-progress {
        order: -1;
        width: 100%;
        text-align: center;
    }
}

/* 教程视频播放器弹窗 */
.tutorial-video-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.tutorial-video-modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.tutorial-video-modal {
    position: relative;
    width: 90%;
    max-width: 900px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.tutorial-video-modal-overlay.show .tutorial-video-modal {
    transform: scale(1);
}

.tutorial-video-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: none;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all 0.2s ease;
    color: var(--text-main);
}

.tutorial-video-close:hover {
    background: #fff;
    transform: scale(1.05);
}

.tutorial-video-close svg {
    width: 20px;
    height: 20px;
}

.tutorial-video-container {
    padding: 0;
}

.tutorial-video-player {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tutorial-video-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
}

.tutorial-video-placeholder-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(109, 213, 232, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--trace-active);
}

.tutorial-video-placeholder-icon svg {
    width: 40px;
    height: 40px;
}

.tutorial-video-placeholder-title {
    font-size: 20px;
    font-weight: 600;
    color: #fff;
    margin: 0 0 12px 0;
}

.tutorial-video-placeholder-text {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
    line-height: 1.6;
}

.tutorial-video-info {
    padding: 24px 32px;
    border-bottom: 1px solid var(--border-color);
}

.tutorial-video-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-main);
    margin: 0 0 8px 0;
    line-height: 1.4;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.tutorial-video-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: normal;
    overflow: visible;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .tutorial-video-modal {
        width: 95%;
        max-width: none;
        border-radius: 12px;
    }
    
    .tutorial-video-info {
        padding: 20px;
    }
    
    .tutorial-video-title {
        font-size: 16px;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .tutorial-video-description {
        font-size: 13px;
        word-wrap: break-word;
        overflow-wrap: break-word;
        white-space: normal;
        overflow: visible;
    }
}

/* 滚动条样式 */
.tutorial-steps::-webkit-scrollbar,
.tutorial-content::-webkit-scrollbar {
    width: 6px;
}

.tutorial-steps::-webkit-scrollbar-thumb,
.tutorial-content::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: 3px;
}

.tutorial-steps::-webkit-scrollbar-thumb:hover,
.tutorial-content::-webkit-scrollbar-thumb:hover {
    background: #94A3B8;
}

.tutorial-steps::-webkit-scrollbar-track,
.tutorial-content::-webkit-scrollbar-track {
    background: transparent;
}

/* --- 最佳实践页面样式 --- */
.practices-container {
    position: absolute;
    top: 120px;
    left: 50%;
    transform: translateX(-50%);
    width: 1000px;
    max-width: 92vw;
    z-index: 5;
}

/* 最佳实践页面对话容器 */
.practices-chat-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    display: flex;
    flex-direction: column;
    z-index: 10;
}

.practices-chat-container .chat-header {
    display: flex;
    align-items: center;
    gap: 12px;
}

.practices-chat-container .message-text {
    font-size: 16px;
    line-height: 1.5;
}

.chat-title-wrapper {
    display: flex;
    align-items: baseline;
    gap: 8px;
    flex: 1;
}

.chat-title-main {
    font-size: 18px;
    font-weight: 600;
    color: #334155;
    margin: 0;
}

.chat-title-sub {
    font-size: 13px;
    color: #6DD5E8;
    font-weight: 500;
}

.chat-back-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #64748B;
    transition: all 0.2s;
    flex-shrink: 0;
}

.chat-back-btn:hover {
    background: #F1F5F9;
    color: #334155;
}

.chat-back-btn svg {
    width: 20px;
    height: 20px;
}


.practices-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 20px 48px rgba(15, 23, 42, 0.12);
    border: 1px solid #E2E8F0;
    padding: 40px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.practice-item {
    position: relative;
    background: #F8FAFC;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #E2E8F0;
    transition: all 0.3s ease;
    cursor: pointer;
}

.practice-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.1);
    border-color: #6DD5E8;
}

.practice-bg {
    position: relative;
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 12px 12px 0 0;
}

/* 物料检索卡片 - 蓝色系 */
.practice-bg-material {
    background: linear-gradient(135deg, #3B82F6 0%, #60A5FA 50%, #93C5FD 100%);
}

/* BOM评审卡片 - 紫色系 */
.practice-bg-bom {
    background: linear-gradient(135deg, #8B5CF6 0%, #A78BFA 50%, #C4B5FD 100%);
}

/* 研发研究卡片 - 橙色系 */
.practice-bg-research {
    background: linear-gradient(135deg, #F59E0B 0%, #FBBF24 50%, #FCD34D 100%);
}

/* CAD原理图解读卡片 - 绿色系 */
.practice-bg-cad {
    background: linear-gradient(135deg, #10B981 0%, #34D399 50%, #6EE7B7 100%);
}

.practice-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.12;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.8) 1.5px, transparent 1.5px),
        radial-gradient(circle at 75% 75%, rgba(255, 255, 255, 0.6) 2px, transparent 2px),
        radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.4) 1px, transparent 1px);
    background-size: 32px 32px, 48px 48px, 24px 24px;
    background-position: 0 0, 16px 16px, 8px 8px;
    animation: patternMove 25s linear infinite;
}

@keyframes patternMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(32px, 32px); }
}

/* 为不同卡片添加装饰性几何图形 */
.practice-bg-material::before {
    content: '';
    position: absolute;
    top: -30px;
    right: -30px;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
}

.practice-bg-bom::before {
    content: '';
    position: absolute;
    bottom: -20px;
    left: -20px;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.12) 0%, transparent 100%);
    border-radius: 50%;
    z-index: 1;
}

.practice-bg-research::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.18) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
}

.practice-bg-cad::before {
    content: '';
    position: absolute;
    top: -15px;
    right: -15px;
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, transparent 100%);
    border-radius: 50%;
    z-index: 1;
}

/* BOM智能生成卡片 - 青色系 */
.practice-bg-generation {
    background: linear-gradient(135deg, #06B6D4 0%, #22D3EE 50%, #67E8F9 100%);
}

/* BOM构建卡片（新版本）- 粉色系 */
.practice-bg-review {
    background: linear-gradient(135deg, #EC4899 0%, #F472B6 50%, #FBCFE8 100%);
}

.practice-bg-review::before {
    content: '';
    position: absolute;
    bottom: -25px;
    right: -25px;
    width: 105px;
    height: 105px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.13) 0%, transparent 100%);
    border-radius: 50%;
    z-index: 1;
}

.practice-bg-generation::before {
    content: '';
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
}

.practice-bg-icon {
    position: absolute;
    font-size: 72px;
    opacity: 0.2;
    z-index: 1;
    filter: blur(2px);
    transform: scale(1.1);
    transition: transform 0.3s ease;
}

.practice-item:hover .practice-bg-icon {
    transform: scale(1.15) rotate(5deg);
    opacity: 0.25;
}

.practice-bg-text {
    position: relative;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.95);
    letter-spacing: 3.5px;
    text-shadow: 
        0 2px 4px rgba(0, 0, 0, 0.2),
        0 0 20px rgba(255, 255, 255, 0.1);
    z-index: 2;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

.practice-item:hover .practice-bg-text {
    letter-spacing: 4px;
    text-shadow: 
        0 2px 6px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(255, 255, 255, 0.15);
}

.practice-pin {
    position: absolute;
    top: 12px;
    right: 12px;
    font-size: 20px;
    filter: drop-shadow(0 2px 6px rgba(0,0,0,0.3));
    z-index: 3;
    animation: pinFloat 3s ease-in-out infinite;
}

@keyframes pinFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-4px) rotate(5deg); }
}

.practice-content {
    padding: 20px;
    background: #fff;
    border-radius: 0 0 12px 12px;
}

.practice-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.practice-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #F1F5F9;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.practice-user {
    font-size: 12px;
    color: #64748B;
    font-weight: 500;
}

.practice-title {
    font-size: 18px;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 8px;
}

.practice-desc {
    font-size: 13px;
    color: #475569;
    line-height: 1.6;
    margin-bottom: 12px;
}

.practice-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.practice-tag {
    font-size: 11px;
    padding: 4px 10px;
    background: #F1F5F9;
    color: #64748B;
    border-radius: 12px;
    font-weight: 500;
}

/* --- SVG 线路层 (最底层) --- */
/* 这个SVG负责绘制从侧边栏到芯片，以及芯片上下延伸的所有线路 */
.pcb-layer-svg {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: auto; /* 允许推荐问题节点接收点击 */
    z-index: 1;
    will-change: contents; /* 提示浏览器优化SVG内容变化 */
    transform: translateZ(0); /* 启用硬件加速 */
}

.pcb-layer-svg .trace-path,
.pcb-layer-svg circle {
    pointer-events: none; /* 避免线路和引脚抢占点击 */
}

.pcb-layer-svg .question-node {
    pointer-events: auto;
}

.pcb-layer-svg .floor-node {
    pointer-events: auto;
}

.pcb-layer-svg .floor-node circle,
.pcb-layer-svg .floor-node path,
.pcb-layer-svg .floor-node text {
    pointer-events: auto;
}

 /* 线路样式 */
 .trace-path {
     fill: none;
     stroke: var(--trace-color);
     stroke-width: 1.5;
     vector-effect: non-scaling-stroke; /* 防止缩放变粗 */
     transition: stroke 0.6s ease, stroke-width 0.6s ease, filter 0.6s ease;
 }
 .trace-path.active {
     stroke: var(--trace-active);
     stroke-width: 2;
     filter: drop-shadow(0 0 2px rgba(109, 213, 232, 0.4));
 }
 
 /* 呼吸灯效果 */
 .trace-path.breathing {
     animation: breathingGlow var(--breathing-duration, 9s) ease-in-out infinite;
 }
 
 @keyframes breathingGlow {
     0%, 100% {
         stroke: var(--trace-color);
         stroke-width: 1.5;
         filter: none;
         opacity: 0.7;
     }
     50% {
         stroke: var(--trace-active);
         stroke-width: 2.5;
         filter: drop-shadow(0 0 4px rgba(109, 213, 232, 0.5));
         opacity: 1;
     }
 }
 
 /* 电流传导效果 - 实线脉冲 */
 .trace-path.current-flow {
     stroke: var(--trace-active);
     stroke-width: 2.5;
     filter: drop-shadow(0 0 8px rgba(109, 213, 232, 0.6));
     animation: currentFlowPulse var(--current-flow-duration, 3.6s) ease-in-out;
 }
 
 @keyframes currentFlowPulse {
     0% {
         opacity: 0.4;
         stroke-width: 2;
     }
     50% {
         opacity: 1;
         stroke-width: 3;
     }
     100% {
         opacity: 0.4;
         stroke-width: 2;
     }
 }
 
 
 /* 电流脉冲效果（用于节点） */
 .current-pulse {
     animation: currentPulse 1.5s ease-in-out infinite;
 }
 
 @keyframes currentPulse {
     0%, 100% {
         opacity: 0.4;
         transform: scale(1);
     }
     50% {
         opacity: 1;
         transform: scale(1.2);
     }
 }
 
 /* 楼层切换节点按钮 */
 .floor-node {
     cursor: pointer;
     transition: all 0.3s ease;
     pointer-events: auto;
     /* 避免 SVG transform 导致命中区域抖动 */
     transform-box: fill-box;
     transform-origin: center;
 }
 
 .floor-node:hover {
     /* 不再缩放，避免 hover “抽动” */
     transform: none;
 }
 
 .floor-node:hover circle:first-child {
     fill: #E0F7FA;
     stroke: var(--trace-active);
     stroke-width: 3;
     filter: drop-shadow(0 0 8px rgba(109, 213, 232, 0.4));
 }
 
 .floor-node:hover path {
     stroke: var(--trace-active);
     stroke-width: 2.5;
 }
 
 .floor-node:active {
     transform: scale(0.95);
 }

 /* 楼层节点 hover 文案（默认隐藏，hover 显示） */
 .floor-node-bubble {
     opacity: 0;
     pointer-events: none;
     transition: opacity 0.18s ease, transform 0.18s ease;
     transform: translateY(2px);
 }

 .floor-node:hover .floor-node-bubble {
     opacity: 1;
     transform: translateY(0);
 }

 .floor-node-bubble-bg {
     fill: rgba(255, 255, 255, 0.95);
     stroke: rgba(109, 213, 232, 0.35);
     stroke-width: 1.5;
     filter: drop-shadow(0 6px 14px rgba(15, 23, 42, 0.12));
 }

 .floor-node-label {
     fill: #4DB6AC;
     font-size: 12px;
     font-weight: 700;
 }


/* --- 核心芯片本体 (Central Chip) --- */
.chip-package {
    width: 680px;
    height: 400px; /* 更大的操作区 */
    background: var(--chip-body);
    border-radius: 4px; /* 芯片通常是尖角的，或者倒角很小 */
    box-shadow: 
        0 0 0 1px #E2E8F0, /* 边框 */
        0 20px 40px -10px rgba(0,0,0,0.1); /* 悬浮阴影 */
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    padding: 2px; /* 给引脚留出一点内边距 */
}

/* 芯片表面的文字丝印 */
.chip-marking {
    position: absolute;
    top: 15px; right: 20px;
    font-family: 'Courier New', monospace;
    font-size: 10px; color: #CBD5E1;
    text-align: right;
    pointer-events: none;
}

/* 四周的引脚容器 */
.pin-array {
    position: absolute;
    display: flex;
    justify-content: center;
    gap: 15px; /* 引脚间距 */
}
/* 定位引脚阵列 */
.pin-array.top { top: -10px; left: 0; width: 100%; }
.pin-array.bottom { bottom: -10px; left: 0; width: 100%; }
.pin-array.left { left: -10px; top: 0; height: 100%; flex-direction: column; align-items: center; }
.pin-array.right { right: -10px; top: 0; height: 100%; flex-direction: column; align-items: center; }

/* 单个引脚样式 */
.pin-lead {
    width: 8px; height: 10px;
    background: linear-gradient(135deg, #E2E8F0 0%, #94A3B8 100%);
    border-radius: 1px;
    position: relative;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}
/* 侧边引脚旋转 */
.pin-array.left .pin-lead, .pin-array.right .pin-lead { width: 10px; height: 8px; }

/* 激活的引脚 */
.pin-lead.active {
    background: linear-gradient(135deg, var(--trace-active) 0%, #4DB6AC 100%);
    box-shadow: 0 0 8px var(--trace-active), 0 1px 3px rgba(0,0,0,0.2);
}

.pin-lead.active::after {
    content: ''; 
    position: absolute; 
    inset: 0;
    background: var(--trace-active);
    box-shadow: 0 0 5px var(--trace-active);
    opacity: 0.4;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}


/* 芯片内部UI */
.chip-interface {
    flex: 1;
    background: #fff;
    margin: 20px;
    border: 1px solid #F1F5F9;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* 对话模式下，chip-interface占满整个区域 */
.chip-interface:has(.chat-container[style*="display: flex"]) {
    margin: 0;
    border: none;
    border-radius: 0;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.welcome-area { text-align: center; margin-bottom: 30px; }
.welcome-area h1 { font-size: 24px; color: #1E293B; margin-bottom: 8px; }
.welcome-area p { font-size: 14px; color: #64748B; }

.search-wrapper {
    width: 80%;
    position: relative;
    background: #fff;
    border: 1px solid #E2E8F0;
    border-radius: 12px;
    padding: 16px 20px;
    transition: 0.3s;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 10;
    flex-shrink: 0;
}

.search-wrapper .upload-input {
    display: none;
}

.upload-list {
    display: none;
    align-items: center;
    gap: 12px;
    overflow-x: auto;
    padding: 6px 0 4px;
    max-width: 100%;
    -webkit-overflow-scrolling: touch;
}

.upload-list.has-files {
    display: flex;
}

.upload-list::-webkit-scrollbar {
    height: 6px;
}

.upload-list::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: 4px;
}

.upload-card {
    min-width: 180px;
    max-width: 210px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 12px;
    border: 1px solid #E2E8F0;
    background: #F8FAFC;
    position: relative;
    flex-shrink: 0;
    height: 56px;
    overflow: visible;
}

.upload-thumb {
    width: auto;
    height: 100%;
    border-radius: 10px;
    overflow: hidden;
    background: #E2E8F0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
}

.upload-thumb img {
    width: auto;
    height: 100%;
    object-fit: cover;
    display: block;
}

.upload-thumb.is-icon img {
    width: 64%;
    height: 64%;
    object-fit: contain;
}

.upload-thumb.is-icon {
    width: 44px;
    height: 44px;
}

.upload-card.is-image {
    min-width: 0;
    max-width: none;
    height: 56px;
    padding: 0;
    border: none;
    background: transparent;
}

.upload-card.is-image .upload-thumb {
    height: 100%;
    width: auto;
    border-radius: 14px;
}

.upload-meta {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.upload-name {
    font-size: 13px;
    font-weight: 600;
    color: #0F172A;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 120px;
}

.upload-status {
    font-size: 11px;
    color: #1E40AF;
    background: #DBEAFE;
    padding: 2px 8px;
    border-radius: 999px;
    width: fit-content;
}

.upload-card.is-ready .upload-status {
    color: #065F46;
    background: #D1FAE5;
}

.upload-card.is-loading .upload-thumb::after {
    content: '';
    position: absolute;
    inset: 10px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.6);
    border-top-color: #3B82F6;
    animation: uploadSpin 0.8s linear infinite;
}

@keyframes uploadSpin {
    to { transform: rotate(360deg); }
}

.upload-remove {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: none;
    background: #0F172A;
    color: #fff;
    font-size: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.upload-remove:hover {
    background: #1E293B;
}

.chip-interface:has(.chat-container[style*="display: flex"]) .search-wrapper {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 40px);
    max-width: 800px;
    z-index: 10;
}
.search-wrapper:focus-within { 
    border-color: var(--trace-active); 
    box-shadow: 0 0 0 3px rgba(109, 213, 232, 0.15); 
}

.search-wrapper textarea,
.search-wrapper .input-editor {
    width: 100%;
    min-height: 40px;
    max-height: 200px;
    border: none; 
    background: transparent; 
    outline: none;
    resize: none; 
    font-size: 16px; 
    color: #333;
    line-height: 24px;
    padding: 0;
}

.search-wrapper .input-editor {
    overflow-y: auto;
    word-wrap: break-word;
}

.search-wrapper .input-editor:empty::before {
    content: attr(data-placeholder);
    color: #94A3B8;
    font-size: 14px;
}

.search-wrapper.is-task-locked {
    background: #F8FAFC;
    border-color: #E2E8F0;
}

.search-wrapper.is-task-locked .input-editor {
    color: #94A3B8;
    pointer-events: none;
}

.search-wrapper.is-task-locked .input-actions {
    opacity: 0.6;
}

.search-wrapper.is-task-locked .btn-attach,
.search-wrapper.is-task-locked .btn-send {
    pointer-events: none;
}

.input-task-status {
    font-size: 12px;
    color: #64748B;
    margin-top: -4px;
    display: none;
}

.search-wrapper.is-task-locked .input-task-status {
    display: block;
}

.search-wrapper textarea::placeholder {
    color: #94A3B8;
    font-size: 14px;
}

/* @提及下拉菜单 */
.mention-dropdown {
    position: fixed;
    background: #fff;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    max-height: 300px;
    overflow-y: auto;
    z-index: 10001;
    display: none;
    min-width: 240px;
    font-size: 13px;
}

.mention-dropdown.show {
    display: block;
}

.mention-item-group {
    padding: 4px 8px;
    font-size: 11px;
    font-weight: 500;
    color: #64748B;
    background: #F8FAFC;
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    user-select: none;
}

.mention-item-group:hover {
    background: #F1F5F9;
}

.mention-group-icon {
    width: 12px;
    height: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94A3B8;
    transition: transform 0.2s;
}

.mention-item-group.expanded .mention-group-icon {
    transform: rotate(90deg);
}

.mention-item-group .folder-icon {
    width: 14px;
    height: 14px;
    color: #F59E0B;
}

.mention-item-list {
    display: none;
    padding-left: 20px;
}

.mention-item-group.expanded + .mention-item-list {
    display: block;
}

.mention-item {
    padding: 4px 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background 0.2s;
    font-size: 12px;
    color: #334155;
}

.mention-item:hover,
.mention-item.selected {
    background: #E0F2FE;
}

.mention-item-icon {
    width: 10px;
    height: 10px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94A3B8;
}

.mention-item-text {
    flex: 1;
    font-size: 12px;
}

/* @提及标签样式 */
.mention-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: #E0F2FE;
    color: #0369A1;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    margin: 0 2px;
    white-space: nowrap;
}

.mention-tag-icon {
    width: 14px;
    height: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #0EA5E9;
    color: #fff;
    border-radius: 2px;
    font-size: 10px;
    font-weight: 600;
}

.mention-tag-text {
    display: inline-block;
}

.input-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    flex-shrink: 0;
}

.btn-attach,
.btn-voice {
    width: 28px;
    height: 28px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94A3B8;
    transition: color 0.2s;
    padding: 0;
}

.btn-attach:hover,
.btn-voice:hover {
    color: #64748B;
}

.btn-attach svg,
.btn-voice svg {
    width: 22px;
    height: 22px;
}

.btn-send {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #6DD5E8 0%, #4DB6AC 100%);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    padding: 0;
    flex-shrink: 0;
}

.btn-send:hover {
    background: linear-gradient(135deg, #5BC4D7 0%, #3DA69C 100%);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(109, 213, 232, 0.3);
}

.btn-send svg {
    width: 20px;
    height: 20px;
}

/* 研发风格铭牌 */
.input-actions-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.input-actions-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.mode-badge {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 16px;
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
    border: 1.5px solid;
    white-space: nowrap;
}

.mode-badge:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.mode-badge.balanced {
    background: linear-gradient(135deg, #6DD5E8 0%, #4DB6AC 100%);
    border-color: #6DD5E8;
    color: #fff;
}

.mode-badge.efficiency {
    background: linear-gradient(135deg, #F59E0B 0%, #F97316 100%);
    border-color: #F59E0B;
    color: #fff;
}

.mode-badge.inspiration {
    background: linear-gradient(135deg, #8B5CF6 0%, #7C3AED 100%);
    border-color: #8B5CF6;
    color: #fff;
}

.mode-badge-icon {
    font-size: 14px;
}

/* 设置弹窗样式 */
/* 个人设置弹窗样式已移至公共CSS文件 css/settings-feedback.css */

.settings-modal-header {
    padding: 24px 24px 16px;
    border-bottom: 1px solid #E2E8F0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.settings-modal-title {
    font-size: 18px;
    font-weight: 600;
    color: #334155;
    display: flex;
    align-items: center;
    gap: 12px;
}

.settings-modal-title-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: cover;
}

.settings-modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: background-color 0.2s ease;
    font-size: 20px;
    color: #64748B;
}

.settings-modal-close:hover {
    background-color: #F1F5F9;
}

.settings-modal-content {
    flex: 1;
    overflow-y: auto;
    padding: 32px;
}

.settings-form-section {
    margin-bottom: 32px;
}

.settings-form-section-title {
    font-size: 15px;
    font-weight: 600;
    color: #334155;
    margin-bottom: 12px;
}

.settings-tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.settings-preference-tag {
    position: relative;
    padding: 10px 20px;
    border: 1.5px solid #E2E8F0;
    border-radius: 24px;
    font-size: 14px;
    color: #334155;
    background: #fff;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.settings-preference-tag:hover {
    border-color: #6DD5E8;
    background: #F0FDFF;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(109, 213, 232, 0.15);
}

.settings-preference-tag.selected {
    border-color: transparent;
    color: #fff;
}

.settings-preference-tag[data-mode="balanced"].selected {
    background: linear-gradient(135deg, #6DD5E8 0%, #4DB6AC 100%);
    box-shadow: 0 4px 12px rgba(109, 213, 232, 0.3);
}

.settings-preference-tag[data-mode="efficiency"].selected {
    background: linear-gradient(135deg, #F59E0B 0%, #F97316 100%);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.settings-preference-tag[data-mode="inspiration"].selected {
    background: linear-gradient(135deg, #8B5CF6 0%, #7C3AED 100%);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.settings-preference-tag-icon {
    font-size: 16px;
}

.settings-preference-tag-tooltip {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.85);
    color: #fff;
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 12px;
    line-height: 1.5;
    max-width: 320px;
    min-width: 240px;
    white-space: normal;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 10000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.settings-preference-tag-tooltip::after {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-bottom-color: rgba(0, 0, 0, 0.85);
}

.settings-preference-tag:hover .settings-preference-tag-tooltip {
    opacity: 1;
    visibility: visible;
}

.settings-preference-textarea {
    width: 100%;
    min-height: 180px;
    padding: 12px 16px;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    font-size: 14px;
    color: #334155;
    font-family: inherit;
    resize: vertical;
    transition: all 0.2s ease;
    background: #fff;
    line-height: 1.6;
}

.settings-preference-textarea:focus {
    outline: none;
    border-color: #6DD5E8;
    box-shadow: 0 0 0 3px rgba(109, 213, 232, 0.1);
}

.settings-preference-textarea::placeholder {
    color: #94A3B8;
    line-height: 1.6;
}

.settings-modal-footer {
    padding: 16px 24px;
    border-top: 1px solid #E2E8F0;
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background: #FAFBFC;
}

.settings-btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

.settings-btn-cancel {
    background: #fff;
    color: #334155;
    border: 1px solid #E2E8F0;
}

.settings-btn-cancel:hover {
    background: #F8FAFC;
    border-color: #CBD5E1;
}

.settings-btn-save {
    background: linear-gradient(135deg, #6DD5E8 0%, #4DB6AC 100%);
    color: #fff;
}

.settings-btn-save:hover {
    background: linear-gradient(135deg, #4DB6AC 0%, #6DD5E8 100%);
    box-shadow: 0 4px 12px rgba(109, 213, 232, 0.3);
}

.settings-modal-content::-webkit-scrollbar {
    width: 6px;
}

.settings-modal-content::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: 3px;
}

.settings-modal-content::-webkit-scrollbar-thumb:hover {
    background: #94A3B8;
}

/* 对话展示模态框 */
.chat-demo-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.chat-demo-modal-overlay.show {
    display: flex;
    opacity: 1;
}

.chat-demo-modal {
    width: 90%;
    max-width: 1200px;
    height: 85vh;
    max-height: 900px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 24px 48px rgba(15, 23, 42, 0.2);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.chat-demo-modal-overlay.show .chat-demo-modal {
    transform: scale(1);
}

.chat-demo-header {
    padding: 20px 24px;
    border-bottom: 1px solid #E2E8F0;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.chat-demo-title h2 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: #0f172a;
}

.chat-demo-subtitle {
    font-size: 13px;
    color: #64748B;
    margin-top: 4px;
    display: block;
}

.chat-demo-close {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #64748B;
    transition: all 0.2s;
}

.chat-demo-close:hover {
    background: #F1F5F9;
    color: #0f172a;
}

.chat-demo-close svg {
    width: 20px;
    height: 20px;
}

.chat-demo-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    background: #F8FAFC;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.chat-demo-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-demo-messages::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: 3px;
}

.chat-demo-messages::-webkit-scrollbar-thumb:hover {
    background: #94A3B8;
}

.chat-demo-messages::-webkit-scrollbar-track {
    background: transparent;
}

/* 对话消息样式 */
.chat-demo-message {
    display: flex;
    gap: 16px;
    max-width: 100%;
}

.chat-demo-message.user {
    flex-direction: row-reverse;
    justify-content: flex-end;
}

.chat-demo-message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 16px;
    background: linear-gradient(135deg, #94A3B8 0%, #64748B 100%);
    color: #fff;
}

.chat-demo-message.assistant .chat-demo-message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-image: url('https://chat-web-1253214834.cos.ap-beijing.myqcloud.com/image/a98360672e312beb0fcc5fdaaf57a568.png');
    background-size: cover;
    background-position: center;
    border: 2px solid #E2E8F0;
    background-color: #fff;
}

.chat-demo-message-content {
    flex: 1;
    min-width: 0;
}

.chat-demo-message.user .chat-demo-message-content {
    display: flex;
    justify-content: flex-end;
}

.chat-demo-message-bubble {
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 16px;
    padding: 16px 20px;
    max-width: 80%;
    word-wrap: break-word;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.chat-demo-message.user .chat-demo-message-bubble {
    background: #6DD5E8;
    color: white;
    border-color: #6DD5E8;
}

.chat-demo-message-text {
    font-size: 16px;
    line-height: 1.5;
    color: #334155;
    margin-bottom: 8px;
}

.chat-demo-message.user .chat-demo-message-text {
    color: white;
}

.chat-demo-message-time {
    font-size: 11px;
    color: #94A3B8;
    margin-top: 8px;
}

.chat-demo-message.user .chat-demo-message-time {
    color: rgba(255, 255, 255, 0.8);
}

/* 工具调用样式 */
.chat-demo-tool-call {
    margin: 16px 0;
    background: #F8FAFC;
    border: 1px solid #E2E8F0;
    border-radius: 12px;
    padding: 16px;
}

.chat-demo-tool-call-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.chat-demo-tool-call-icon {
    font-size: 18px;
}

.chat-demo-tool-call-name {
    font-weight: 600;
    font-size: 14px;
    color: #334155;
    flex: 1;
}

.chat-demo-tool-call-status {
    font-size: 12px;
    color: #10B981;
    background: #D1FAE5;
    padding: 4px 8px;
    border-radius: 6px;
}

.chat-demo-tool-call-content {
    font-size: 13px;
    color: #64748B;
    line-height: 1.6;
}

/* 芯片信息表格样式 */
.chat-demo-chip-info-table {
    margin: 16px 0;
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 12px;
    overflow: hidden;
}

.chat-demo-chip-info-header {
    background: #F8FAFC;
    padding: 12px 16px;
    font-weight: 600;
    font-size: 14px;
    color: #334155;
    border-bottom: 1px solid #E2E8F0;
}

.chat-demo-chip-info-body {
    padding: 8px 0;
}

.chat-demo-chip-param-row {
    display: flex;
    padding: 10px 16px;
    border-bottom: 1px solid #F1F5F9;
}

.chat-demo-chip-param-row:last-child {
    border-bottom: none;
}

.chat-demo-chip-param-label {
    width: 120px;
    font-size: 13px;
    color: #64748B;
    flex-shrink: 0;
}

.chat-demo-chip-param-value {
    flex: 1;
    font-size: 13px;
    color: #334155;
    font-weight: 500;
}

/* PDF文件样式 */
.chat-demo-pdf-file {
    margin: 16px 0;
    background: #F8FAFC;
    border: 1px solid #E2E8F0;
    border-radius: 12px;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.chat-demo-pdf-file:hover {
    background: #F1F5F9;
    border-color: #6DD5E8;
}

.chat-demo-pdf-file-icon {
    width: 48px;
    height: 48px;
    background: #EF4444;
    color: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 12px;
    flex-shrink: 0;
}

.chat-demo-pdf-file-info {
    flex: 1;
    min-width: 0;
}

.chat-demo-pdf-file-name {
    font-size: 14px;
    font-weight: 500;
    color: #334155;
    margin-bottom: 4px;
}

.chat-demo-pdf-file-size {
    font-size: 12px;
    color: #64748B;
}

.chat-demo-pdf-file-action {
    font-size: 13px;
    color: #6DD5E8;
    font-weight: 500;
}

/* 替代料列表样式 */
.chat-demo-alternatives-list {
    margin: 16px 0;
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 12px;
    overflow: hidden;
}

.chat-demo-alternatives-header {
    background: #F8FAFC;
    padding: 12px 16px;
    font-weight: 600;
    font-size: 14px;
    color: #334155;
    border-bottom: 1px solid #E2E8F0;
}

.chat-demo-alternative-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid #F1F5F9;
}

.chat-demo-alternative-item:last-child {
    border-bottom: none;
}

.chat-demo-alternative-name {
    font-size: 14px;
    font-weight: 600;
    color: #334155;
    margin-bottom: 4px;
}

.chat-demo-alternative-desc {
    font-size: 12px;
    color: #64748B;
}

.chat-demo-alternative-compatibility {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 6px;
    font-weight: 500;
    flex-shrink: 0;
}

.chat-demo-compatibility-high {
    background: #D1FAE5;
    color: #065F46;
}

.chat-demo-compatibility-medium {
    background: #FEF3C7;
    color: #92400E;
}

/* 对话容器样式 */
.chat-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #F8FAFC;
    z-index: 10;
}

.chat-header {
    padding: 16px 24px;
    border-bottom: 1px solid #E2E8F0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    flex-shrink: 0;
}

.chat-title {
    font-size: 16px;
    font-weight: 600;
    color: #334155;
    margin: 0;
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    background: #F8FAFC;
}

/* 对话模式下，消息容器居中并限制宽度 */
.chat-container .messages-container {
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
    padding: 24px 20px;
}

.messages-container::-webkit-scrollbar {
    width: 6px;
}

.messages-container::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: 3px;
}

.messages-container::-webkit-scrollbar-thumb:hover {
    background: #94A3B8;
}

.messages-container::-webkit-scrollbar-track {
    background: transparent;
}

/* 消息样式 */
.message {
    display: flex;
    gap: 16px;
    max-width: 100%;
}

.message.user {
    flex-direction: row-reverse;
    justify-content: flex-end;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 20px;
    background: linear-gradient(135deg, #94A3B8 0%, #64748B 100%);
    color: #fff;
    line-height: 1;
}

.message.user .message-avatar {
    background: transparent;
    font-size: 24px;
    line-height: 1;
}

.message.assistant .message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-image: url('https://chat-web-1253214834.cos.ap-beijing.myqcloud.com/image/a98360672e312beb0fcc5fdaaf57a568.png');
    background-size: cover;
    background-position: center;
    border: 2px solid #E2E8F0;
    background-color: #fff;
}

.message-content {
    flex: 1;
    min-width: 0;
}

.message.user .message-content {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
}

.message-bubble {
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 16px;
    padding: 16px 20px;
    max-width: 80%;
    word-wrap: break-word;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.message.user .message-bubble {
    background: #6DD5E8;
    color: white;
    border-color: #6DD5E8;
}

.message-text {
    font-size: 14px;
    line-height: 1.6;
    color: #334155;
    margin-bottom: 8px;
}

.message.user .message-text {
    color: white;
}

.message-time {
    font-size: 11px;
    color: #94A3B8;
    margin-top: 8px;
}

.message.user .message-time {
    color: rgba(255, 255, 255, 0.8);
}

/* MOS物料表格（预置脚本组件样式，可复用） */
.mos-table-wrapper {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    max-width: 100%;
}

.mos-table-title {
    font-size: 14px;
    font-weight: 600;
    color: #334155;
}

.mos-table-container {
    max-height: 260px;
    overflow-x: hidden;
    overflow-y: auto;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    background: #FFFFFF;
}

.mos-table {
    width: 100%;
    table-layout: fixed;
    border-collapse: collapse;
    font-size: 12px;
    color: #334155;
}

.mos-table thead th {
    position: sticky;
    top: 0;
    background: #F1F5F9;
    text-align: center;
    padding: 8px 10px;
    border-bottom: 1px solid #E2E8F0;
    font-weight: 600;
    z-index: 1;
    white-space: nowrap;
}

.mos-table tbody td {
    padding: 8px 10px;
    border-bottom: 1px solid #F1F5F9;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: center;
}

.mos-table tbody tr:last-child td {
    border-bottom: none;
}

.mos-table tbody tr:nth-child(even) td {
    background: #FAFBFC;
}

.mos-table tbody tr:hover td {
    background: #F1F5F9;
}

.mos-table th[data-col="rds"],
.mos-table th[data-col="vds"],
.mos-table th[data-col="id"],
.mos-table td[data-col="rds"],
.mos-table td[data-col="vds"],
.mos-table td[data-col="id"] {
    text-align: center;
    font-variant-numeric: tabular-nums;
}

/* BOM物料需求确认单（预置脚本组件样式，可复用） */
.bom-requirement-form {
    margin: 12px 0;
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 12px;
    overflow: hidden;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    flex: 1 1 auto;
}

.bom-form-title {
    padding: 14px 16px;
    background: #F8FAFC;
    border-bottom: 1px solid #E2E8F0;
    font-size: 14px;
    font-weight: 600;
    color: #0F172A;
}

.bom-form-table {
    display: flex;
    flex-direction: column;
    max-height: 260px;
    overflow-y: auto;
}

.bom-form-row {
    display: grid;
    grid-template-columns: 200px 1fr 88px;
    border-bottom: 1px solid #F1F5F9;
    align-items: center;
}

.bom-form-row--head {
    background: #F8FAFC;
    color: #64748B;
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 2;
}

.bom-form-row:last-child {
    border-bottom: none;
}

.bom-form-cell {
    padding: 10px 14px;
    font-size: 13px;
    color: #334155;
    display: flex;
    align-items: center;
    min-width: 0;
}

.bom-form-cell--action {
    justify-content: flex-end;
}

.bom-form-select,
.bom-form-input {
    width: 100%;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    background: #FFFFFF;
    padding: 8px 10px;
    font-size: 13px;
    color: #0F172A;
    outline: none;
}

.bom-form-select:disabled,
.bom-form-input:disabled {
    background: #F8FAFC;
    color: #94A3B8;
    cursor: not-allowed;
}

.bom-form-input::placeholder {
    color: #94A3B8;
}

.bom-form-select:focus,
.bom-form-input:focus {
    border-color: #6DD5E8;
    box-shadow: 0 0 0 3px rgba(109, 213, 232, 0.15);
}

.bom-form-remove {
    border: none;
    background: transparent;
    color: #EF4444;
    font-size: 12px;
    cursor: pointer;
}

.bom-form-remove:disabled {
    color: #CBD5E1;
    cursor: not-allowed;
}

.bom-form-footer {
    padding: 12px 14px 14px;
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.bom-form-add {
    border: 1px solid #E2E8F0;
    background: #FFFFFF;
    color: #334155;
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 13px;
    cursor: pointer;
}

.bom-form-add:disabled {
    color: #94A3B8;
    cursor: not-allowed;
}

.bom-form-submit {
    border: none;
    background: #6DD5E8;
    color: #FFFFFF;
    padding: 8px 18px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
}

.bom-form-submit:disabled {
    background: #CBD5E1;
    cursor: not-allowed;
}

.message-attachments {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
    max-width: 80%;
}

.message-attachment {
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 14px;
    padding: 10px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 2px 6px rgba(15, 23, 42, 0.05);
    cursor: pointer;
}

.message-attachment.image {
    padding: 0;
    border: none;
    background: transparent;
    box-shadow: none;
}

.message-attachment.image img {
    height: 56px;
    width: auto;
    border-radius: 12px;
    display: block;
}

.message-attachment-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: #E2E8F0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.message-attachment-icon img {
    width: 64%;
    height: 64%;
    object-fit: contain;
}

.message-attachment-info {
    min-width: 0;
}

.message-attachment-name {
    font-size: 14px;
    font-weight: 600;
    color: #0F172A;
    max-width: 220px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.message-attachment-type {
    font-size: 12px;
    color: #64748B;
    margin-top: 4px;
}

/* 研发空间 - 对话页 */
.page-index .rd-space-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 720px;
    height: 100vh;
    box-sizing: border-box;
    background: #FFFFFF;
    border-left: 1px solid #E2E8F0;
    box-shadow: -12px 0 24px rgba(15, 23, 42, 0.08);
    transform: translateX(100%);
    transition: transform 0.25s ease;
    z-index: 1200;
    display: flex;
    flex-direction: column;
}

.page-index .rd-space-drawer.open {
    transform: translateX(0);
}

.rd-space-header {
    padding: 16px 20px;
    border-bottom: 1px solid #E2E8F0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.rd-space-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
    color: #334155;
}

.rd-space-title img {
    width: 20px;
    height: 20px;
    display: block;
}

.rd-space-close {
    width: 30px;
    height: 30px;
    border: none;
    background: transparent;
    border-radius: 8px;
    color: #64748B;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.rd-space-close:hover {
    background: #F1F5F9;
    color: #0F172A;
}

.rd-space-close svg {
    width: 18px;
    height: 18px;
}

.rd-space-tabs {
    display: flex;
    gap: 12px;
    padding: 8px 20px 0;
    border-bottom: 1px solid #E2E8F0;
}

.rd-space-tab {
    padding: 10px 6px;
    font-size: 13px;
    font-weight: 600;
    color: #64748B;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
}

.rd-space-tab.active {
    color: #38BDF8;
    border-bottom-color: #38BDF8;
}

.rd-space-tab.is-disabled {
    color: #CBD5E1;
    cursor: default;
    pointer-events: none;
}

.page-index .rd-space-drawer .rd-space-content {
    flex: 1;
    min-height: 0;
    padding: 16px;
    display: flex;
    flex-direction: column;
}

.page-index .rd-space-drawer .rd-space-panel {
    flex: 1;
    min-height: 0;
    display: none;
}

.page-index .rd-space-drawer .rd-space-panel.active {
    display: flex;
    width: 100%;
}

.page-index .rd-space-drawer .local-resources-panel {
    display: flex;
    gap: 12px;
    flex: 1;
    min-height: 0;
    position: relative;
    align-items: stretch;
}

.page-index .rd-space-drawer .resources-sidebar {
    width: 180px;
    background: #FFFFFF;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0;
    flex-shrink: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), margin 0.3s ease, opacity 0.3s ease;
    position: relative;
    opacity: 1;
    height: 100%;
}

.page-index .rd-space-drawer .resources-sidebar.collapsed {
    width: 0;
    margin: 0;
    border: none;
    opacity: 0;
    overflow: hidden;
}

.page-index .rd-space-drawer .resources-sidebar.collapsed .resources-sidebar-content,
.page-index .rd-space-drawer .resources-sidebar.collapsed .resources-sidebar-header {
    display: none;
}

.page-index .rd-space-drawer .resources-sidebar-header {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    background: var(--hover-bg);
    min-height: 40px;
}

.page-index .rd-space-drawer .resources-sidebar-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.page-index .rd-space-drawer .resources-sidebar-toggle {
    width: 24px;
    height: 24px;
    border: none;
    background: transparent;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s;
    padding: 0;
}

.page-index .rd-space-drawer .resources-sidebar-toggle:hover {
    background: var(--border-color);
    color: var(--text-main);
}

.page-index .rd-space-drawer .resources-sidebar-toggle svg {
    width: 14px;
    height: 14px;
    transition: transform 0.3s ease;
}

.page-index .rd-space-drawer .resources-sidebar.collapsed .resources-sidebar-toggle svg {
    transform: rotate(180deg);
}

.page-index .rd-space-drawer .resources-sidebar-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 12px;
}

.page-index .rd-space-drawer .resources-sidebar-content::-webkit-scrollbar {
    width: 4px;
}

.page-index .rd-space-drawer .resources-sidebar-content::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: 2px;
}

.page-index .rd-space-drawer .resource-category {
    margin-bottom: 16px;
}

.page-index .rd-space-drawer .resource-category-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 8px;
    padding: 4px 8px;
    background: var(--hover-bg);
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.page-index .rd-space-drawer .resource-category-title svg {
    width: 12px;
    height: 12px;
    color: var(--text-secondary);
}

.page-index .rd-space-drawer .resource-file {
    padding: 6px 10px;
    font-size: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s;
    margin-bottom: 4px;
    display: flex;
    align-items: flex-start;
    gap: 6px;
    position: relative;
    width: 100%;
    border: none;
    background: transparent;
    box-shadow: none;
    outline: none;
    text-align: left;
    overflow: hidden;
}

.page-index .rd-space-drawer .resource-file:hover {
    background: var(--hover-bg);
    color: var(--text-main);
}

.page-index .rd-space-drawer .resource-file.selected {
    background: var(--processing-bg);
    color: var(--processing-text);
    font-weight: 500;
}

.page-index .rd-space-drawer .resource-file-name {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.4;
    max-width: 100%;
}

.page-index .rd-space-drawer .resources-content {
    flex: 1;
    background: #FFFFFF;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    color: var(--text-secondary);
    font-size: 13px;
    min-width: 0;
    min-height: 0;
    position: relative;
    overflow: hidden;
    height: 100%;
}

.page-index .rd-space-drawer .resources-content-header {
    display: none;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
    transition: padding-left 0.3s ease;
}

.page-index .rd-space-drawer .resources-sidebar.collapsed ~ .resources-content .resources-content-header {
    display: block;
    padding-left: 48px;
}

.page-index .rd-space-drawer .resources-content-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

.page-index .rd-space-drawer .resources-content-title svg {
    width: 18px;
    height: 18px;
    color: var(--text-secondary);
}

.page-index .rd-space-drawer .resources-content-body {
    flex: 1;
    display: flex;
    align-items: stretch;
    justify-content: stretch;
    padding: 20px;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    box-sizing: border-box;
}

.page-index .rd-space-drawer .resources-content-body .empty-state {
    margin: auto;
}

.page-index .rd-space-drawer .resources-content-body::-webkit-scrollbar {
    width: 6px;
}

.page-index .rd-space-drawer .resources-content-body::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: 3px;
}

.page-index .rd-space-drawer .resource-preview {
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    display: none;
    flex-direction: column;
    min-height: 0;
    flex: 1;
}

.page-index .rd-space-drawer .resource-preview-image {
    flex: 1;
    min-height: 0;
}

.page-index .rd-space-drawer .resources-content-body:has(.resource-preview:not([style*="display: none"])) .empty-state {
    display: none;
}

.page-index .rd-space-drawer .resource-preview.active {
    display: flex;
}

.page-index .rd-space-drawer .resource-preview-image {
    flex: 1;
    min-height: 0;
    background: #FFFFFF;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.page-index .rd-space-drawer .resource-preview-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.page-index .rd-space-drawer .preview-document {
    width: 100%;
    height: 100%;
    background: #FFFFFF;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 10px;
    color: var(--text-main);
    overflow-y: auto;
}

.page-index .rd-space-drawer .preview-document-line {
    height: 12px;
    background: var(--text-secondary);
    border-radius: 2px;
    opacity: 0.3;
}

.page-index .rd-space-drawer .preview-document-line:nth-child(1) { width: 60%; }
.page-index .rd-space-drawer .preview-document-line:nth-child(2) { width: 100%; }
.page-index .rd-space-drawer .preview-document-line:nth-child(3) { width: 85%; }
.page-index .rd-space-drawer .preview-document-line:nth-child(4) { width: 70%; }
.page-index .rd-space-drawer .preview-document-line:nth-child(5) { width: 90%; }
.page-index .rd-space-drawer .preview-document-line:nth-child(6) { width: 55%; }

.page-index .rd-space-drawer .preview-cad {
    width: 100%;
    height: 100%;
    background:
        linear-gradient(90deg, #CBD5E1 1px, transparent 1px),
        linear-gradient(0deg, #CBD5E1 1px, transparent 1px),
        #FFFFFF;
    background-size: 20px 20px, 20px 20px, 100% 100%;
    position: relative;
}

.page-index .rd-space-drawer .preview-cad::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 20%;
    width: 60%;
    height: 60%;
    border: 2px solid #6DD5E8;
    border-radius: 4px;
}

.page-index .rd-space-drawer .preview-cad::after {
    content: '';
    position: absolute;
    top: 30%;
    left: 30%;
    width: 40%;
    height: 40%;
    border: 1px solid #94A3B8;
    border-radius: 2px;
}

.page-index .rd-space-drawer .resource-preview-info {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.page-index .rd-space-drawer .resource-preview-info strong {
    color: var(--text-main);
    font-weight: 600;
    display: inline-block;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.page-index .rd-space-drawer .empty-state {
    text-align: center;
    padding: 40px 24px;
    color: var(--text-light);
}

.page-index .rd-space-drawer .empty-state svg {
    width: 48px;
    height: 48px;
    margin-bottom: 12px;
    color: var(--text-light);
    opacity: 0.4;
}

.page-index .rd-space-drawer .empty-state-text {
    font-size: 13px;
}

.page-index .rd-space-drawer .resources-expand-button {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 32px;
    height: 32px;
    background: var(--sidebar-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.1);
    z-index: 10;
}

.page-index .rd-space-drawer .resources-sidebar.collapsed ~ .resources-content .resources-expand-button {
    display: flex;
}

.page-index .rd-space-drawer .resources-expand-button:hover {
    background: var(--hover-bg);
    border-color: var(--primary-color);
    color: var(--text-main);
    box-shadow: 0 4px 12px rgba(109, 213, 232, 0.2);
}

.page-index .rd-space-drawer .resources-expand-button svg {
    width: 16px;
    height: 16px;
}

/* 研发空间 - 任务进度面板（首页专用） */
.page-index .rd-space-drawer .task-progress-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
    flex: 1;
    width: 100%;
}

.page-index .rd-space-drawer .workflow-diagram {
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    padding: 30px 20px;
    height: 100%;
    overflow-y: auto;
    position: relative;
    width: 100%;
    box-sizing: border-box;
    flex: 1;
}

.page-index .rd-space-drawer .workflow-diagram::-webkit-scrollbar {
    width: 6px;
}

.page-index .rd-space-drawer .workflow-diagram::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: 3px;
}

.page-index .rd-space-drawer .workflow-stage {
    margin-bottom: 0;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.page-index .rd-space-drawer .workflow-step {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border-radius: 6px;
    font-weight: 500;
    font-size: 12px;
    border: 1.5px solid #E2E8F0;
    background: #FFFFFF;
    color: #334155;
    transition: all 0.2s;
    position: relative;
    min-width: 100px;
    z-index: 3;
    text-align: center;
    line-height: 1.4;
}

.page-index .rd-space-drawer .workflow-step-category {
    font-size: 11px;
    color: #64748B;
    margin-bottom: 4px;
}

.page-index .rd-space-drawer .workflow-step-name {
    font-size: 12px;
    font-weight: 500;
}

.page-index .rd-space-drawer .workflow-step.completed {
    color: #065F46;
    border-color: #10B981;
}

.page-index .rd-space-drawer .workflow-step.processing {
    color: #6DD5E8;
    border-color: #6DD5E8;
    position: relative;
    padding-left: 24px;
}

.page-index .rd-space-drawer .workflow-step.processing::before {
    content: '';
    position: absolute;
    left: 8px;
    width: 8px;
    height: 8px;
    border: 2px solid #6DD5E8;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.page-index .rd-space-drawer .workflow-step.pending {
    color: #94A3B8;
    border-color: #E2E8F0;
}

.page-index .rd-space-drawer .workflow-step-single {
    position: relative;
    margin-bottom: 0;
}

.page-index .rd-space-drawer .workflow-parallel {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 0;
    position: relative;
    width: 100%;
}

.page-index .rd-space-drawer .workflow-connector {
    position: relative;
    width: 100%;
    margin: 0;
    z-index: 1;
    pointer-events: none;
}

.page-index .rd-space-drawer .workflow-connector svg {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
}

.page-index .rd-space-drawer .workflow-connector path {
    fill: none;
    stroke: #E2E8F0;
    stroke-width: 1.5;
    vector-effect: non-scaling-stroke;
}

.page-index .rd-space-drawer .workflow-connector.simple {
    height: 30px;
}

.page-index .rd-space-drawer .workflow-connector.branch,
.page-index .rd-space-drawer .workflow-connector.merge {
    height: 50px;
}

/* 研发空间 - BOM面板（首页专用） */
.page-index .rd-space-drawer .bom-panel {
    display: flex;
    gap: 12px;
    height: 100%;
    position: relative;
    flex: 1;
    width: 100%;
}

.page-index .rd-space-drawer .bom-sidebar {
    width: 200px;
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    padding: 0;
    flex-shrink: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), margin 0.3s ease, opacity 0.3s ease;
    position: relative;
    opacity: 1;
    min-height: 0;
}

.page-index .rd-space-drawer .bom-sidebar.collapsed {
    width: 0;
    margin: 0;
    border: none;
    opacity: 0;
    overflow: hidden;
}

.page-index .rd-space-drawer .bom-sidebar.collapsed .bom-sidebar-content,
.page-index .rd-space-drawer .bom-sidebar.collapsed .bom-sidebar-header {
    display: none;
}

.page-index .rd-space-drawer .bom-sidebar-header {
    padding: 12px;
    border-bottom: 1px solid #E2E8F0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    background: #F1F5F9;
    min-height: 40px;
}

.page-index .rd-space-drawer .bom-sidebar-title {
    font-size: 11px;
    font-weight: 600;
    color: #64748B;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.page-index .rd-space-drawer .bom-sidebar-toggle {
    width: 24px;
    height: 24px;
    border: none;
    background: transparent;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #64748B;
    transition: all 0.2s;
    padding: 0;
}

.page-index .rd-space-drawer .bom-sidebar-toggle:hover {
    background: #E2E8F0;
    color: #334155;
}

.page-index .rd-space-drawer .bom-sidebar-toggle svg {
    width: 14px;
    height: 14px;
    transition: transform 0.3s ease;
}

.page-index .rd-space-drawer .bom-sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    min-height: 0;
}

.page-index .rd-space-drawer .bom-sidebar-content::-webkit-scrollbar {
    width: 4px;
}

.page-index .rd-space-drawer .bom-sidebar-content::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: 2px;
}

.page-index .rd-space-drawer .bom-project {
    margin-bottom: 16px;
}

.page-index .rd-space-drawer .bom-project-name {
    font-size: 12px;
    font-weight: 600;
    color: #334155;
    margin-bottom: 8px;
    padding: 6px 10px;
    background: #F1F5F9;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.page-index .rd-space-drawer .bom-sidebar-content .bom-version-item {
    padding: 10px;
    margin-bottom: 6px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.page-index .rd-space-drawer .bom-sidebar-content .bom-version-item:hover {
    background: #F1F5F9;
    border-color: #E2E8F0;
}

.page-index .rd-space-drawer .bom-sidebar-content .bom-version-item.selected {
    background: #DBEAFE;
    border-color: #6DD5E8;
}

.page-index .rd-space-drawer .bom-version-badge {
    font-size: 9px;
    padding: 2px 6px;
    background: #6DD5E8;
    color: #FFFFFF;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-left: 6px;
}

.page-index .rd-space-drawer .bom-sidebar-content .bom-version-name {
    font-size: 13px;
    font-weight: 600;
    color: #334155;
    margin-bottom: 6px;
    text-align: left;
}

.page-index .rd-space-drawer .bom-sidebar-content .bom-version-meta {
    font-size: 11px;
    color: #94A3B8;
    margin-bottom: 4px;
    text-align: left;
}

.page-index .rd-space-drawer .bom-sidebar-content .bom-version-info {
    font-size: 11px;
    color: #64748B;
    line-height: 1.4;
    text-align: left;
}

.page-index .rd-space-drawer .bom-content {
    flex: 1;
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-width: 0;
    min-height: 0;
    position: relative;
}

.page-index .rd-space-drawer .bom-expand-button {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 32px;
    height: 32px;
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #64748B;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.1);
    z-index: 10;
}

.page-index .rd-space-drawer .bom-expand-button:hover {
    background: #F1F5F9;
    border-color: #6DD5E8;
    color: #334155;
}

.page-index .rd-space-drawer .bom-sidebar.collapsed ~ .bom-content .bom-expand-button {
    display: flex;
}

.page-index .rd-space-drawer .bom-content-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 12px;
    border-bottom: 1px solid #E2E8F0;
    flex-wrap: wrap;
    gap: 12px;
}

.page-index .rd-space-drawer .bom-sidebar.collapsed ~ .bom-content .bom-content-header {
    padding-left: 48px;
}

.page-index .rd-space-drawer .bom-content-title {
    font-size: 15px;
    font-weight: 600;
    color: #334155;
    display: flex;
    align-items: center;
    gap: 8px;
}

.page-index .rd-space-drawer .bom-content-title svg {
    width: 18px;
    height: 18px;
    color: #64748B;
}

.page-index .rd-space-drawer .bom-content-body {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.page-index .rd-space-drawer .bom-content-body::-webkit-scrollbar {
    width: 6px;
}

.page-index .rd-space-drawer .bom-content-body::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: 3px;
}

/* 研发空间 - BOM详情列表（首页专用） */
.page-index .rd-space-drawer .bom-detail-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.page-index .rd-space-drawer .bom-detail-item {
    background: #F8FAFC;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    padding: 16px;
    transition: all 0.2s;
}

.page-index .rd-space-drawer .bom-detail-item:hover {
    border-color: #6DD5E8;
    box-shadow: 0 2px 4px rgba(109, 213, 232, 0.1);
}

.page-index .rd-space-drawer .bom-detail-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    gap: 12px;
}

.page-index .rd-space-drawer .bom-detail-model {
    font-size: 14px;
    font-weight: 600;
    color: #334155;
    display: flex;
    align-items: center;
    gap: 6px;
}

.page-index .rd-space-drawer .bom-detail-ref {
    font-size: 12px;
    color: #64748B;
    background: #F1F5F9;
    padding: 3px 8px;
    border-radius: 4px;
    flex-shrink: 0;
}

.page-index .rd-space-drawer .bom-detail-grid {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 8px 12px;
    font-size: 12px;
}

.page-index .rd-space-drawer .bom-detail-label {
    color: #94A3B8;
    font-weight: 500;
}

.page-index .rd-space-drawer .bom-detail-value {
    color: #334155;
}

/* BOM表格（首页对话 & 研发空间通用） */
.page-index .bom-table-container {
    width: 100%;
    margin: 0;
    overflow: hidden;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 8px;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    background: #FFFFFF;
}

.page-index .bom-table-header {
    font-size: 14px;
    font-weight: 600;
    color: #334155;
    padding: 10px 12px;
    border-bottom: 1px solid #E2E8F0;
    background: #F8FAFC;
}

.page-index .bom-table-wrapper {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.page-index .bom-table {
    width: 100%;
    min-width: 720px;
    border-collapse: collapse;
    font-size: 12px;
    color: #334155;
}

.page-index .bom-table th,
.page-index .bom-table td {
    padding: 10px 12px;
    border-bottom: 1px solid #F1F5F9;
    text-align: left;
    white-space: nowrap;
}

.page-index .bom-table th {
    background: #F8FAFC;
    font-weight: 600;
    color: #334155;
    position: sticky;
    top: 0;
    z-index: 1;
}

.page-index .bom-table tbody tr:nth-child(even) td {
    background: #FAFBFC;
}

.page-index .bom-table tbody tr:last-child td {
    border-bottom: none;
}

/* 工具调用样式 */
.tool-call {
    margin: 12px 0;
    background: #F0FDF4; /* 浅绿色背景 */
    border: 1px solid #DCFCE7;
    border-radius: 8px;
    padding: 12px;
}

.tool-call-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.tool-call-icon {
    font-size: 16px;
    display: flex;
    align-items: center;
}

.tool-call-name {
    font-weight: 500;
    font-size: 13px;
    color: #166534; /* 深绿色文字 */
    flex: 1;
}

.tool-call-status {
    font-size: 11px;
    color: #15803d;
    background: #bbf7d0;
    padding: 2px 8px;
    border-radius: 4px;
}

.tool-call-content {
    font-size: 12px;
    color: #166534;
    line-height: 1.5;
    opacity: 0.8;
}

/* 芯片信息表格样式 */
.chip-info-table {
    margin: 12px 0;
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    overflow: hidden;
}

.chip-info-header {
    background: #F8FAFC;
    padding: 10px 16px;
    font-weight: 500;
    font-size: 13px;
    color: #334155;
    border-bottom: 1px solid #E2E8F0;
}

.chip-info-body {
    padding: 8px 0;
}

.chip-param-row {
    display: flex;
    padding: 10px 16px;
    border-bottom: 1px solid #F1F5F9;
}

.chip-param-row:last-child {
    border-bottom: none;
}

.chip-param-label {
    width: 120px;
    font-size: 13px;
    color: #64748B;
    flex-shrink: 0;
}

.chip-param-value {
    flex: 1;
    font-size: 13px;
    color: #334155;
    font-weight: 500;
}

/* PDF文件样式 */
.pdf-file {
    margin: 16px 0;
    background: #F8FAFC;
    border: 1px solid #E2E8F0;
    border-radius: 12px;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.pdf-file:hover {
    background: #F1F5F9;
    border-color: #6DD5E8;
}

.pdf-file-icon {
    width: 48px;
    height: 48px;
    background: #EF4444;
    color: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 12px;
    flex-shrink: 0;
}

.pdf-file-info {
    flex: 1;
    min-width: 0;
}

.pdf-file-name {
    font-size: 14px;
    font-weight: 500;
    color: #334155;
    margin-bottom: 4px;
}

.pdf-file-size {
    font-size: 12px;
    color: #64748B;
}

.pdf-file-action {
    font-size: 13px;
    color: #6DD5E8;
    font-weight: 500;
}

/* 替代料列表样式 */
.alternatives-list {
    margin: 16px 0;
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 12px;
    overflow: hidden;
}

.alternatives-header {
    background: #F8FAFC;
    padding: 10px 16px;
    font-weight: 500;
    font-size: 13px;
    color: #334155;
    border-bottom: 1px solid #E2E8F0;
}

.alternative-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid #F1F5F9;
}

.alternative-item:last-child {
    border-bottom: none;
}

.alternative-name {
    font-size: 14px;
    font-weight: 600;
    color: #334155;
    margin-bottom: 4px;
}

.alternative-desc {
    font-size: 12px;
    color: #64748B;
}

.alternative-compatibility {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 6px;
    font-weight: 500;
    flex-shrink: 0;
}

.compatibility-high {
    background: #D1FAE5;
    color: #065F46;
}

.compatibility-medium {
    background: #FEF3C7;
    color: #92400E;
}

/* PDF抽屉样式 */
.pdf-drawer {
    position: fixed;
    top: 0;
    right: -60%;
    width: 60%;
    height: 100vh;
    background: white;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
}

.pdf-drawer.open {
    right: 0;
}

.pdf-drawer-header {
    padding: 20px 24px;
    border-bottom: 1px solid #E2E8F0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #F8FAFC;
    flex-shrink: 0;
}

.pdf-drawer-title {
    font-size: 18px;
    font-weight: 600;
    color: #334155;
}

.pdf-drawer-close {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #64748B;
    transition: all 0.2s;
}

.pdf-drawer-close:hover {
    background: #E2E8F0;
    color: #334155;
}

.pdf-drawer-content {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
}

.pdf-drawer-content::-webkit-scrollbar {
    width: 6px;
}

.pdf-drawer-content::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: 3px;
}

.pdf-drawer-content::-webkit-scrollbar-thumb:hover {
    background: #94A3B8;
}

/* 抽屉遮罩 */
.pdf-drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.pdf-drawer-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* 上传文件样式 */
.uploaded-file {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0;
    margin-bottom: 8px;
}

.file-icon {
    width: 32px;
    height: 32px;
    background: #2563EB;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 10px;
    flex-shrink: 0;
}

.uploaded-file span {
    background: white;
    padding: 8px 12px;
    border-radius: 8px;
    color: #334155;
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

/* 需求表单样式 */
.requirements-form {
    background: white;
    border-radius: 8px;
    border: 1px solid #E2E8F0;
    margin: 12px 0;
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.form-header {
    background: #F0FDF4; /* 浅绿色背景 */
    color: #166534;
    padding: 12px 16px;
    font-weight: 500;
    font-size: 14px;
    border-bottom: 1px solid #DCFCE7;
}

.form-body {
    padding: 0;
}

.requirement-item {
    display: flex;
    border-bottom: 1px solid #F1F5F9;
    min-height: 60px;
}

.requirement-item:last-child {
    border-bottom: none;
}

.requirement-type {
    flex: 0 0 200px;
    padding: 16px;
    background: #F8FAFC;
    font-weight: 500;
    color: #334155;
    border-right: 1px solid #F1F5F9;
    display: flex;
    align-items: center;
}

.requirement-desc {
    flex: 1;
    padding: 16px;
    color: #64748B;
    display: flex;
    align-items: center;
}

.requirement-input {
    width: 100%;
    border: 1px solid transparent;
    background: transparent;
    font-size: 14px;
    color: #64748B;
    outline: none;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s;
}

.requirement-input:focus {
    color: #334155;
    background: #F8FAFC;
    border-color: #6DD5E8;
}

.requirement-input:disabled {
    color: #64748B;
    background: transparent;
    border-color: transparent;
    cursor: not-allowed;
}

.form-actions {
    padding: 16px;
    border-top: 1px solid #F1F5F9;
    display: flex;
    justify-content: flex-end;
}

.confirm-btn {
    padding: 10px 20px;
    background: #6DD5E8;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}

.confirm-btn:hover {
    background: #5BC5D8;
    transform: translateY(-1px);
}

.confirm-btn:disabled {
    background: #94A3B8;
    cursor: not-allowed;
    transform: none;
}

/* 并行任务样式 */
.parallel-tasks {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
    margin: 16px 0;
}

.task-card {
    background: white;
    border-radius: 12px;
    border: 1px solid #E2E8F0;
    overflow: hidden;
    transition: all 0.3s;
}

.task-card.processing {
    border-color: #6DD5E8;
    box-shadow: 0 4px 12px rgba(109, 213, 232, 0.2);
}

.task-card.completed {
    border-color: #10B981;
}

.task-header {
    padding: 12px 16px;
    background: #F8FAFC;
    border-bottom: 1px solid #F1F5F9;
    display: flex;
    align-items: center;
    gap: 8px;
}

.task-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #94A3B8;
}

.task-status.processing {
    background: #6DD5E8;
    animation: pulse 2s infinite;
}

.task-status.completed {
    background: #10B981;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.task-title {
    font-weight: 500;
    color: #334155;
    font-size: 14px;
}

.task-content {
    padding: 16px;
}

.task-progress {
    font-size: 13px;
    color: #64748B;
    margin-bottom: 8px;
}

.task-result {
    margin-top: 8px;
}

.selected-component {
    font-size: 14px;
    font-weight: 600;
    color: #334155;
    margin-bottom: 4px;
}

.component-reason {
    font-size: 12px;
    color: #64748B;
    line-height: 1.5;
}

/* BOM加载样式 */
.bom-loading {
    margin: 16px 0;
    text-align: center;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid #E2E8F0;
    border-top-color: #6DD5E8;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    font-size: 14px;
    font-weight: 500;
    color: #334155;
    margin-bottom: 8px;
}

.loading-progress {
    font-size: 12px;
    color: #64748B;
    margin-bottom: 16px;
}

.loading-steps {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
}

.loading-step {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: #94A3B8;
    padding: 8px;
    border-radius: 6px;
}

.loading-step.active {
    color: #334155;
    background: #F8FAFC;
}

.loading-step.completed {
    color: #10B981;
}

.loading-step-icon {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #E2E8F0;
    flex-shrink: 0;
}

.loading-step.active .loading-step-icon {
    background: #6DD5E8;
}

.loading-step.completed .loading-step-icon {
    background: #10B981;
    position: relative;
}

.loading-step.completed .loading-step-icon::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 10px;
    font-weight: bold;
}

/* BOM表格样式 */
.bom-table-container {
    margin: 16px 0;
    background: white;
    border: 1px solid #E2E8F0;
    border-radius: 12px;
    overflow: hidden;
}

.bom-table-header {
    background: #F8FAFC;
    padding: 12px 16px;
    font-weight: 600;
    font-size: 14px;
    color: #334155;
    border-bottom: 1px solid #E2E8F0;
}

.bom-table {
    width: 100%;
    border-collapse: collapse;
}

.bom-table thead {
    background: #F8FAFC;
}

.bom-table th {
    padding: 12px 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    color: #64748B;
    text-transform: uppercase;
    border-bottom: 1px solid #E2E8F0;
}

.bom-table td {
    padding: 12px 16px;
    font-size: 13px;
    color: #334155;
    border-bottom: 1px solid #F1F5F9;
}

.bom-table tbody tr:hover {
    background: #F8FAFC;
}

.component-select {
    position: relative;
}

.component-name {
    color: #6DD5E8;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: color 0.2s;
}

.component-name:hover {
    color: #5BC5D8;
}

.component-select:hover .dropdown-icon {
    transform: translateY(2px);
}

.dropdown-icon {
    width: 14px;
    height: 14px;
    transition: transform 0.2s;
}

.alternatives-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 100;
    min-width: 250px;
    display: none;
    margin-top: 4px;
}

.alternatives-dropdown.show {
    display: block;
}

.alternative-option {
    padding: 12px;
    cursor: pointer;
    border-bottom: 1px solid #F1F5F9;
    transition: all 0.2s;
}

.alternative-option:last-child {
    border-bottom: none;
}

.alternative-option:hover {
    background: #F8FAFC;
}

.alternative-name {
    font-weight: 500;
    color: #334155;
    margin-bottom: 4px;
    font-size: 13px;
}

.alternative-desc {
    font-size: 12px;
    color: #64748B;
    line-height: 1.4;
}

.alternative-tag {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    margin-left: 8px;
}

.tag-high-compatible {
    background: #D1FAE5;
    color: #065F46;
}

.tag-same-manufacturer {
    background: #DBEAFE;
    color: #1E40AF;
}

.tag-cost-effective {
    background: #FEF3C7;
    color: #92400E;
}

.pdf-link {
    color: #6DD5E8;
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: color 0.2s;
}

.pdf-link:hover {
    color: #5BC5D8;
    text-decoration: underline;
}

/* BOM表格操作按钮区域 */
.bom-table-actions {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border-top: 1px solid #F1F5F9;
    background: #FAFBFC;
}

.bom-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid #E2E8F0;
    border-radius: 6px;
    background: #fff;
    color: #64748B;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.bom-action-btn svg {
    width: 16px;
    height: 16px;
}

.bom-action-btn:hover {
    background: #F8FAFC;
    border-color: #CBD5E1;
    color: #334155;
}

.bom-action-btn.primary {
    background: #6DD5E8;
    border-color: #6DD5E8;
    color: #fff;
}

.bom-action-btn.primary:hover {
    background: #5BC5D8;
    border-color: #5BC5D8;
}

.bom-btn-download {
    /* 次要按钮样式已通过默认样式设置 */
}

/* 项目选择弹窗 */
.project-select-dropdown {
    position: fixed;
    background: #fff;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    max-height: 400px;
    overflow-y: auto;
    z-index: 10001;
    display: none;
    min-width: 280px;
    font-size: 13px;
    outline: none;
}

.project-select-dropdown.show {
    display: block;
}

.project-select-item {
    padding: 10px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background 0.2s;
    font-size: 13px;
    color: #334155;
    border-bottom: 1px solid #F1F5F9;
}

.project-select-item:last-child {
    border-bottom: none;
}

.project-select-item:hover,
.project-select-item.selected {
    background: #E0F2FE;
    color: #0369A1;
}

.project-select-item-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94A3B8;
}

.project-select-item.selected .project-select-item-icon {
    color: #0369A1;
}

.project-select-item-text {
    flex: 1;
    font-size: 13px;
}

.project-select-empty {
    padding: 40px 20px;
    text-align: center;
    color: #94A3B8;
    font-size: 13px;
}

/* BOM版本卡片 */
.bom-version-card {
    flex: 1;
    min-width: 0;
    padding: 12px;
    background: #F8FAFC;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    transition: all 0.2s;
}

.bom-version-card:hover {
    background: #EFF6FF;
    border-color: #93C5FD;
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.bom-version-icon {
    font-size: 24px;
    text-align: center;
    margin-bottom: 8px;
}

.bom-version-name {
    font-size: 14px;
    font-weight: 600;
    color: #1E293B;
    text-align: center;
    margin-bottom: 4px;
}

.bom-version-date {
    font-size: 11px;
    color: #94A3B8;
    text-align: center;
    margin-bottom: 6px;
}

.bom-version-info {
    font-size: 12px;
    color: #64748B;
    text-align: center;
}

/* BOM版本详情弹窗 */
.bom-version-modal {
    background: #FFFFFF;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 900px;
    position: relative;
    overflow: hidden;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.bom-version-modal .close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #64748B;
    font-size: 28px;
    line-height: 1;
    z-index: 10;
    transition: color 0.2s;
}

.bom-version-modal .close-btn:hover {
    color: #334155;
}

.bom-version-header {
    padding: 30px 40px 20px;
    border-bottom: 1px solid #E2E8F0;
}

.bom-version-title {
    font-size: 20px;
    font-weight: 600;
    color: #0F172A;
    margin: 0;
}

.bom-version-body {
    padding: 20px;
    max-height: 60vh;
    overflow-y: auto;
}

.bom-version-body .bom-table-container {
    margin: 0;
    border: none;
}