/*!
 * product-center-light.css — 博奥智能产品中心浅色专业商务版
 * 版本：v20260627v1 (全新设计 - 与黑色背景版对比)
 * 配色：纯白主背景 + 深蓝主色 + 橙红CTA + 青蓝强调
 * 风格：浅色专业商务 / 大留白 / 柔和阴影 / 现代企业站
 * 参考风格：Stripe / Linear / Notion 企业级官网
 */

/* ============================================
   全局变量定义
   ============================================ */
:root{
    --pc-bg-primary:#ffffff;          /* 纯白主背景 */
    --pc-bg-secondary:#f8fafc;        /* 浅灰次背景 */
    --pc-bg-tertiary:#f1f5f9;         /* 更浅灰 */
    --pc-bg-card:#ffffff;             /* 卡片白底 */
    --pc-bg-soft:#f8fafc;             /* 柔和背景 */
    --pc-color-primary:#1e40af;       /* 深蓝主色 - 专业可信 */
    --pc-color-primary-dark:#1e3a8a;  /* 深蓝暗 */
    --pc-color-primary-light:#3b82f6; /* 亮蓝 */
    --pc-color-accent:#ea580c;        /* 橙红CTA高亮 */
    --pc-color-accent-dark:#c2410c;   /* 橙红暗 */
    --pc-color-cyan:#0891b2;          /* 青蓝强调 */
    --pc-color-green:#10b981;         /* 绿色成功 */
    --pc-color-red:#ef4444;           /* 红色警示 */
    --pc-color-gold:#d97706;          /* 金棕 */
    --pc-text-primary:#0f172a;        /* 主文字深色 */
    --pc-text-secondary:#475569;      /* 次文字 */
    --pc-text-muted:#94a3b8;          /* 弱文字 */
    --pc-border-light:#e2e8f0;        /* 浅边框 */
    --pc-border-medium:#cbd5e1;       /* 中边框 */
    --pc-shadow-sm:0 1px 2px rgba(15,23,42,0.04), 0 1px 3px rgba(15,23,42,0.06);
    --pc-shadow-md:0 4px 6px -1px rgba(15,23,42,0.06), 0 2px 4px -1px rgba(15,23,42,0.04);
    --pc-shadow-lg:0 10px 15px -3px rgba(15,23,42,0.08), 0 4px 6px -2px rgba(15,23,42,0.04);
    --pc-shadow-xl:0 20px 25px -5px rgba(15,23,42,0.1), 0 10px 10px -5px rgba(15,23,42,0.04);
    --pc-shadow-hover:0 20px 40px -8px rgba(30,64,175,0.18);
    --pc-gradient-primary:linear-gradient(135deg,#1e40af 0%,#3b82f6 100%);
    --pc-gradient-accent:linear-gradient(135deg,#ea580c 0%,#f97316 100%);
    --pc-gradient-hero:linear-gradient(180deg,#f8fafc 0%,#ffffff 50%,#f8fafc 100%);
    --pc-gradient-card:linear-gradient(180deg,#ffffff 0%,#fafbfc 100%);
    --pc-radius-sm:8px;
    --pc-radius:16px;
    --pc-radius-lg:20px;
    --pc-radius-full:9999px;
    --pc-transition:all 0.3s cubic-bezier(0.4,0,0.2,1);
    --pc-transition-slow:all 0.5s cubic-bezier(0.16,1,0.3,1);
}

/* ============================================
   基础重置与主背景
   ============================================ */
body{
    background:#ffffff;
    color:var(--pc-text-primary);
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
    line-height:1.6;
}

.list_main{
    background:var(--pc-gradient-hero);
    position:relative;
    padding:24px 0 60px;
}

/* 柔和装饰背景 - 浅色光晕 */
.list_main::before{
    content:"";
    position:absolute;
    top:0;left:50%;
    transform:translateX(-50%);
    width:1200px;height:400px;
    background:
        radial-gradient(ellipse at top right,rgba(59,130,246,0.06) 0%,transparent 50%),
        radial-gradient(ellipse at top left,rgba(234,88,12,0.04) 0%,transparent 50%);
    pointer-events:none;
    z-index:0;
}

.list_main > *{
    position:relative;
    z-index:1;
}

.w1200{
    max-width:1200px;
    margin:0 auto;
    padding:0 15px;
}

/* ============================================
   Hero区
   ============================================ */
.list_banner{
    width:100%;
    height:200px;
    background:
        linear-gradient(135deg,rgba(30,64,175,0.95) 0%,rgba(59,130,246,0.92) 100%),
        radial-gradient(circle at 20% 50%,rgba(255,255,255,0.1) 0%,transparent 50%);
    position:relative;
    overflow:hidden;
    border-radius:0 0 24px 24px;
    box-shadow:0 8px 32px rgba(30,64,175,0.15);
}

.list_banner::before{
    content:"";
    position:absolute;
    top:0;left:0;right:0;bottom:0;
    background-image:
        linear-gradient(rgba(255,255,255,0.05) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,0.05) 1px,transparent 1px);
    background-size:40px 40px;
    pointer-events:none;
}

.list_banner::after{
    content:"";
    position:absolute;
    top:-50%;right:-10%;
    width:400px;height:400px;
    background:radial-gradient(circle,rgba(255,255,255,0.15) 0%,transparent 70%);
    border-radius:50%;
    pointer-events:none;
}

/* ============================================
   面包屑
   ============================================ */
.dqwz{
    padding:14px 0;
    color:var(--pc-text-muted);
    font-size:13px;
}

.dqwz a{
    color:var(--pc-text-secondary);
    text-decoration:none;
    transition:var(--pc-transition);
}

.dqwz a:hover{
    color:var(--pc-color-primary);
}

.dqwz > i{
    margin:0 6px;
    color:var(--pc-text-muted);
}

/* ============================================
   H1 + SEO 区块
   ============================================ */
.list_seo_header{
    background:var(--pc-bg-card);
    border-radius:var(--pc-radius);
    padding:28px 32px;
    margin:12px 0 20px;
    box-shadow:var(--pc-shadow-md);
    border:1px solid var(--pc-border-light);
    display:flex;
    align-items:center;
    gap:24px;
}

.list_seo_header h1{
    font-size:32px;
    font-weight:700;
    color:var(--pc-text-primary);
    margin:0;
    letter-spacing:-0.5px;
    flex-shrink:0;
    background:var(--pc-gradient-primary);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}

.list_seo_desc{
    font-size:14px;
    color:var(--pc-text-secondary);
    line-height:1.7;
    margin:0;
    padding-left:24px;
    border-left:3px solid var(--pc-color-primary);
}

/* ============================================
   信任条
   ============================================ */
.list_trust{
    background:var(--pc-bg-card);
    border-radius:var(--pc-radius);
    padding:20px 28px;
    margin:16px 0;
    box-shadow:var(--pc-shadow-sm);
    border:1px solid var(--pc-border-light);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    flex-wrap:wrap;
}

.list_trust_cert{
    display:flex;
    align-items:center;
    gap:14px;
    flex-wrap:wrap;
}

.list_trust_label{
    font-size:13px;
    font-weight:600;
    color:var(--pc-color-primary);
    padding:4px 12px;
    background:rgba(30,64,175,0.08);
    border-radius:var(--pc-radius-full);
}

.list_trust_certs{
    list-style:none;
    display:flex;
    gap:14px;
    flex-wrap:wrap;
    margin:0;padding:0;
}

.list_trust_certs li{
    font-size:13px;
    color:var(--pc-text-secondary);
    display:flex;
    align-items:center;
    gap:4px;
}

.cert_icon{
    color:var(--pc-color-green);
    font-size:14px;
}

.list_trust_divider{
    width:1px;
    height:32px;
    background:var(--pc-border-light);
}

.list_trust_stats{
    display:flex;
    gap:24px;
    flex-wrap:wrap;
}

.trust_stat{
    text-align:center;
}

.trust_stat strong{
    display:block;
    font-size:22px;
    font-weight:700;
    color:var(--pc-color-primary);
    line-height:1.2;
}

.trust_stat span{
    font-size:12px;
    color:var(--pc-text-muted);
}

/* ============================================
   两栏布局
   ============================================ */
.list_two_col{
    display:grid;
    grid-template-columns:1fr 320px;
    gap:24px;
    margin:20px 0;
    align-items:flex-start;
}

.list_main_col{
    min-width:0;
}

/* ============================================
   产品面板
   ============================================ */
.list_product_wrap{
    background:var(--pc-bg-card);
    border-radius:var(--pc-radius);
    padding:24px;
    box-shadow:var(--pc-shadow-md);
    border:1px solid var(--pc-border-light);
}

.list_panels{
    display:block;
}

.list_panel{
    display:none;
}

.list_panel.active{
    display:block;
    animation:pcFadeIn 0.4s ease;
}

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

.list_panel_head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    margin-bottom:20px;
    padding-bottom:16px;
    border-bottom:2px solid var(--pc-bg-tertiary);
}

.list_subcat_title{
    font-size:20px;
    font-weight:700;
    color:var(--pc-text-primary);
    margin:0;
    position:relative;
    padding-left:14px;
}

.list_subcat_title::before{
    content:"";
    position:absolute;
    left:0;top:50%;
    transform:translateY(-50%);
    width:4px;height:20px;
    background:var(--pc-gradient-primary);
    border-radius:2px;
}

.list_subcat_more{
    font-size:13px;
    color:var(--pc-color-primary);
    text-decoration:none;
    font-weight:500;
    padding:6px 14px;
    border:1px solid var(--pc-color-primary);
    border-radius:var(--pc-radius-full);
    transition:var(--pc-transition);
}

.list_subcat_more:hover{
    background:var(--pc-color-primary);
    color:#fff;
}

/* ============================================
   产品网格 4列
   ============================================ */
.list_grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:16px;
}

/* ============================================
   产品卡片 - 浅色卡片+柔和阴影+hover上浮
   ============================================ */
.pro_card{
    position:relative;
    background:var(--pc-bg-card);
    border:1px solid var(--pc-border-light);
    border-radius:var(--pc-radius);
    overflow:hidden;
    transition:var(--pc-transition-slow);
    box-shadow:var(--pc-shadow-sm);
    display:flex;
    flex-direction:column;
}

.pro_card:hover{
    transform:translateY(-6px);
    box-shadow:var(--pc-shadow-hover);
    border-color:var(--pc-color-primary);
}

.pro_card_compare{
    position:absolute;
    top:8px;right:8px;
    z-index:5;
    background:rgba(255,255,255,0.95);
    backdrop-filter:blur(8px);
    border-radius:var(--pc-radius-full);
    padding:4px 10px;
    box-shadow:var(--pc-shadow-sm);
    border:1px solid var(--pc-border-light);
}

.pro_card_compare label{
    display:flex;
    align-items:center;
    gap:4px;
    cursor:pointer;
    font-size:11px;
    color:var(--pc-text-secondary);
    user-select:none;
}

.pro_card_compare input{
    accent-color:var(--pc-color-primary);
    cursor:pointer;
    margin:0;
    width:13px;height:13px;
}

.pro_card_compare span{
    font-weight:500;
}

.pro_card > a{
    display:flex;
    flex-direction:column;
    height:100%;
    text-decoration:none;
    color:inherit;
}

.pro_card_img{
    width:100%;
    aspect-ratio:1/1;
    overflow:hidden;
    background:var(--pc-bg-secondary);
    position:relative;
}

.pro_card_img::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(180deg,transparent 60%,rgba(15,23,42,0.04) 100%);
    pointer-events:none;
}

.pro_card_img img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform 0.6s ease;
}

.pro_card:hover .pro_card_img img{
    transform:scale(1.08);
}

.pro_card_body{
    padding:14px 14px 16px;
    display:flex;
    flex-direction:column;
    flex:1;
}

.pro_card_body h4{
    font-size:14px;
    font-weight:600;
    color:var(--pc-text-primary);
    margin:0 0 6px;
    line-height:1.4;
    overflow:hidden;
    text-overflow:ellipsis;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    min-height:40px;
}

.pro_card_body p{
    font-size:12px;
    color:var(--pc-text-secondary);
    line-height:1.5;
    margin:0 0 10px;
    overflow:hidden;
    text-overflow:ellipsis;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    flex:1;
}

.pro_card_labels{
    display:flex;
    gap:6px;
    margin-bottom:10px;
    flex-wrap:wrap;
}

.pro_label{
    font-size:11px;
    padding:2px 8px;
    background:rgba(30,64,175,0.06);
    color:var(--pc-color-primary);
    border-radius:var(--pc-radius-full);
    font-weight:500;
}

.pro_card_btns{
    display:flex;
    gap:6px;
}

.pro_btn{
    flex:1;
    text-align:center;
    padding:8px 10px;
    font-size:12px;
    font-weight:600;
    border-radius:var(--pc-radius-sm);
    transition:var(--pc-transition);
}

.pro_btn_detail{
    background:var(--pc-color-primary);
    color:#fff;
}

.pro_btn_detail:hover{
    background:var(--pc-color-primary-dark);
}

.pro_btn_quote{
    background:var(--pc-bg-tertiary);
    color:var(--pc-color-accent);
    border:1px solid var(--pc-border-medium);
}

.pro_btn_quote:hover{
    background:var(--pc-color-accent);
    color:#fff;
    border-color:var(--pc-color-accent);
}

/* ============================================
   筛选栏 (list.html)
   ============================================ */
.list_filter{
    background:var(--pc-bg-card);
    border-radius:var(--pc-radius);
    padding:18px 22px;
    margin:12px 0 16px;
    box-shadow:var(--pc-shadow-sm);
    border:1px solid var(--pc-border-light);
}

.list_filter_row{
    display:flex;
    align-items:center;
    gap:14px;
    padding:6px 0;
    border-bottom:1px dashed var(--pc-border-light);
}

.list_filter_row:last-child{
    border-bottom:none;
}

.list_filter_label{
    font-size:13px;
    font-weight:600;
    color:var(--pc-text-secondary);
    min-width:60px;
    flex-shrink:0;
}

.list_filter_options{
    display:flex;
    gap:8px;
    flex-wrap:wrap;
}

.list_filter_option{
    font-size:12px;
    padding:5px 12px;
    border-radius:var(--pc-radius-full);
    color:var(--pc-text-secondary);
    text-decoration:none;
    background:var(--pc-bg-tertiary);
    transition:var(--pc-transition);
    border:1px solid transparent;
}

.list_filter_option:hover,
.list_filter_option.active{
    background:var(--pc-color-primary);
    color:#fff;
}

/* ============================================
   分页
   ============================================ */
.list_page{
    margin:24px 0 0;
    padding:20px 0 0;
    text-align:center;
    border-top:1px solid var(--pc-border-light);
}

.list_page a,
.list_page span{
    display:inline-block;
    min-width:36px;
    height:36px;
    line-height:36px;
    padding:0 10px;
    margin:0 3px;
    border-radius:var(--pc-radius-sm);
    color:var(--pc-text-secondary);
    text-decoration:none;
    font-size:13px;
    background:var(--pc-bg-secondary);
    border:1px solid var(--pc-border-light);
    transition:var(--pc-transition);
}

.list_page a:hover{
    background:var(--pc-color-primary);
    color:#fff;
    border-color:var(--pc-color-primary);
}

.list_page .current{
    background:var(--pc-color-primary);
    color:#fff;
    border-color:var(--pc-color-primary);
    font-weight:600;
}

/* ============================================
   侧边栏
   ============================================ */
.list_sidebar{
    display:flex;
    flex-direction:column;
    gap:16px;
    position:sticky;
    top:20px;
}

/* RFQ 询价表单 */
.list_rfq{
    background:var(--pc-gradient-primary);
    border-radius:var(--pc-radius);
    padding:24px 22px;
    color:#fff;
    box-shadow:var(--pc-shadow-lg);
    position:relative;
    overflow:hidden;
}

.list_rfq::before{
    content:"";
    position:absolute;
    top:-50%;right:-30%;
    width:200px;height:200px;
    background:radial-gradient(circle,rgba(255,255,255,0.12) 0%,transparent 70%);
    border-radius:50%;
}

.list_rfq_info{
    position:relative;
    margin-bottom:16px;
}

.list_rfq_title{
    font-size:18px;
    font-weight:700;
    margin:0 0 6px;
    color:#fff;
    display:flex;
    align-items:center;
    gap:8px;
}

.list_rfq_title span{
    font-size:11px;
    padding:2px 8px;
    background:rgba(255,255,255,0.2);
    border-radius:var(--pc-radius-full);
    font-weight:500;
}

.list_rfq_desc{
    font-size:12px;
    color:rgba(255,255,255,0.85);
    margin:0;
    line-height:1.5;
}

.list_rfq_form{
    position:relative;
    display:flex;
    flex-direction:column;
    gap:8px;
}

.list_rfq_form input{
    width:100%;
    padding:10px 14px;
    border-radius:var(--pc-radius-sm);
    border:1px solid rgba(255,255,255,0.2);
    background:rgba(255,255,255,0.95);
    font-size:13px;
    color:var(--pc-text-primary);
    outline:none;
    transition:var(--pc-transition);
    box-sizing:border-box;
}

.list_rfq_form input::placeholder{
    color:var(--pc-text-muted);
}

.list_rfq_form input:focus{
    background:#fff;
    border-color:#fff;
    box-shadow:0 0 0 3px rgba(255,255,255,0.3);
}

.list_rfq_btn{
    padding:12px 16px;
    background:var(--pc-color-accent);
    color:#fff;
    border:none;
    border-radius:var(--pc-radius-sm);
    font-size:14px;
    font-weight:700;
    cursor:pointer;
    transition:var(--pc-transition);
    margin-top:4px;
    box-shadow:0 4px 12px rgba(234,88,12,0.3);
}

.list_rfq_btn:hover{
    background:var(--pc-color-accent-dark);
    transform:translateY(-1px);
    box-shadow:0 6px 16px rgba(234,88,12,0.4);
}

/* 对比面板 */
.list_compare,
.list_recent{
    background:var(--pc-bg-card);
    border-radius:var(--pc-radius);
    padding:18px 20px;
    box-shadow:var(--pc-shadow-sm);
    border:1px solid var(--pc-border-light);
}

.list_sidebar_title{
    font-size:15px;
    font-weight:700;
    color:var(--pc-text-primary);
    margin:0 0 14px;
    padding-bottom:10px;
    border-bottom:2px solid var(--pc-bg-tertiary);
    display:flex;
    align-items:center;
    justify-content:space-between;
}

.list_sidebar_title span{
    font-size:10px;
    padding:2px 8px;
    background:var(--pc-bg-tertiary);
    color:var(--pc-text-muted);
    border-radius:var(--pc-radius-full);
    font-weight:600;
    letter-spacing:0.5px;
}

.list_compare_list,
.list_recent_list{
    min-height:60px;
}

.list_compare_empty,
.list_recent_empty{
    font-size:12px;
    color:var(--pc-text-muted);
    text-align:center;
    padding:14px 0;
    line-height:1.6;
}

.list_compare_actions{
    display:flex;
    gap:8px;
    margin-top:12px;
}

.list_compare_btn,
.list_compare_clear{
    flex:1;
    padding:8px 12px;
    border-radius:var(--pc-radius-sm);
    font-size:12px;
    font-weight:600;
    cursor:pointer;
    transition:var(--pc-transition);
    border:1px solid var(--pc-border-medium);
}

.list_compare_btn{
    background:var(--pc-color-primary);
    color:#fff;
    border-color:var(--pc-color-primary);
}

.list_compare_btn:disabled{
    background:var(--pc-bg-tertiary);
    color:var(--pc-text-muted);
    border-color:var(--pc-border-light);
    cursor:not-allowed;
}

.list_compare_btn:not(:disabled):hover{
    background:var(--pc-color-primary-dark);
}

.list_compare_clear{
    background:var(--pc-bg-card);
    color:var(--pc-text-secondary);
}

.list_compare_clear:hover{
    background:var(--pc-bg-tertiary);
}

/* ============================================
   统一区块标题
   ============================================ */
.list_section_title{
    font-size:24px;
    font-weight:700;
    color:var(--pc-text-primary);
    text-align:center;
    margin:0 0 20px;
    position:relative;
    padding-bottom:14px;
    letter-spacing:-0.3px;
}

.list_section_title::after{
    content:"";
    position:absolute;
    bottom:0;left:50%;
    transform:translateX(-50%);
    width:48px;height:3px;
    background:var(--pc-gradient-accent);
    border-radius:2px;
}

.list_section_title span{
    display:block;
    font-size:12px;
    color:var(--pc-text-muted);
    font-weight:500;
    margin-top:4px;
    letter-spacing:2px;
}

/* ============================================
   智能选型助手
   ============================================ */
.list_selector_wrap{
    background:var(--pc-bg-card);
    border-radius:var(--pc-radius-lg);
    padding:32px;
    box-shadow:var(--pc-shadow-md);
    border:1px solid var(--pc-border-light);
}

.list_selector_desc{
    text-align:center;
    color:var(--pc-text-secondary);
    font-size:14px;
    margin:0 0 24px;
}

.list_selector_steps{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:12px;
    margin-bottom:28px;
    flex-wrap:wrap;
}

.list_step{
    display:flex;
    align-items:center;
    gap:8px;
    color:var(--pc-text-muted);
    font-size:14px;
    font-weight:500;
}

.list_step span{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:32px;height:32px;
    border-radius:50%;
    background:var(--pc-bg-tertiary);
    color:var(--pc-text-muted);
    font-weight:700;
    transition:var(--pc-transition);
}

.list_step.active{
    color:var(--pc-color-primary);
}

.list_step.active span{
    background:var(--pc-color-primary);
    color:#fff;
    box-shadow:0 0 0 4px rgba(30,64,175,0.12);
}

.list_step_line{
    width:40px;height:2px;
    background:var(--pc-border-light);
}

.list_selector_body{
    min-height:200px;
}

.list_selector_panel{
    display:none;
}

.list_selector_panel.active{
    display:block;
    animation:pcFadeIn 0.4s ease;
}

.list_option_grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:14px;
    margin-bottom:20px;
}

.list_option_card{
    background:var(--pc-bg-card);
    border:2px solid var(--pc-border-light);
    border-radius:var(--pc-radius);
    padding:18px 14px;
    text-align:center;
    cursor:pointer;
    transition:var(--pc-transition);
}

.list_option_card:hover{
    border-color:var(--pc-color-primary);
    background:rgba(30,64,175,0.04);
    transform:translateY(-2px);
    box-shadow:var(--pc-shadow-md);
}

.list_option_card.selected{
    border-color:var(--pc-color-primary);
    background:rgba(30,64,175,0.06);
    box-shadow:0 0 0 3px rgba(30,64,175,0.12);
}

.list_option_icon{
    font-size:32px;
    margin-bottom:8px;
    line-height:1;
}

.list_option_card h4{
    font-size:14px;
    font-weight:600;
    color:var(--pc-text-primary);
    margin:0 0 4px;
}

.list_option_card p{
    font-size:12px;
    color:var(--pc-text-muted);
    margin:0;
}

.list_selector_nav{
    display:flex;
    justify-content:space-between;
    align-items:center;
}

.list_btn_back,
.list_btn_next,
.list_btn_restart{
    padding:10px 24px;
    border-radius:var(--pc-radius-full);
    font-size:14px;
    font-weight:600;
    cursor:pointer;
    transition:var(--pc-transition);
    border:none;
}

.list_btn_back{
    background:var(--pc-bg-tertiary);
    color:var(--pc-text-secondary);
}

.list_btn_back:hover{
    background:var(--pc-border-medium);
}

.list_btn_next{
    background:var(--pc-color-primary);
    color:#fff;
}

.list_btn_next:disabled{
    background:var(--pc-bg-tertiary);
    color:var(--pc-text-muted);
    cursor:not-allowed;
}

.list_btn_next:not(:disabled):hover{
    background:var(--pc-color-primary-dark);
    transform:translateY(-1px);
    box-shadow:0 6px 16px rgba(30,64,175,0.3);
}

.list_selector_result{
    text-align:center;
    padding:20px 0;
}

.list_result_icon{
    font-size:48px;
    color:var(--pc-color-green);
    margin-bottom:12px;
}

.list_selector_result h3{
    font-size:22px;
    color:var(--pc-text-primary);
    margin:0 0 8px;
}

.list_result_summary{
    color:var(--pc-text-secondary);
    font-size:14px;
    margin:0 0 20px;
}

.list_result_products{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:12px;
    margin-bottom:20px;
    text-align:left;
}

.list_result_product{
    background:var(--pc-bg-secondary);
    padding:14px 18px;
    border-radius:var(--pc-radius-sm);
    border-left:3px solid var(--pc-color-primary);
}

.list_result_product h4{
    font-size:14px;
    color:var(--pc-text-primary);
    margin:0 0 4px;
}

.list_result_product p{
    font-size:12px;
    color:var(--pc-text-secondary);
    margin:0;
    line-height:1.5;
}

.list_result_actions{
    display:flex;
    justify-content:center;
    gap:12px;
}

.list_btn_consult{
    display:inline-block;
    padding:12px 28px;
    background:var(--pc-color-accent);
    color:#fff;
    border-radius:var(--pc-radius-full);
    text-decoration:none;
    font-size:14px;
    font-weight:700;
    transition:var(--pc-transition);
    box-shadow:0 4px 12px rgba(234,88,12,0.3);
}

.list_btn_consult:hover{
    background:var(--pc-color-accent-dark);
    transform:translateY(-1px);
    box-shadow:0 6px 16px rgba(234,88,12,0.4);
}

.list_btn_restart{
    background:var(--pc-bg-card);
    color:var(--pc-text-secondary);
    border:1px solid var(--pc-border-medium);
}

.list_btn_restart:hover{
    background:var(--pc-bg-tertiary);
}

/* ============================================
   客户评价
   ============================================ */
.list_testimonials{
    padding:20px 0;
}

.list_testimonial_grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:18px;
}

.list_testimonial_item{
    background:var(--pc-bg-card);
    border-radius:var(--pc-radius);
    padding:24px 22px;
    box-shadow:var(--pc-shadow-sm);
    border:1px solid var(--pc-border-light);
    transition:var(--pc-transition);
}

.list_testimonial_item:hover{
    box-shadow:var(--pc-shadow-lg);
    transform:translateY(-3px);
    border-color:var(--pc-color-primary);
}

.list_testimonial_stars{
    color:var(--pc-color-accent);
    font-size:16px;
    margin-bottom:12px;
    letter-spacing:2px;
}

.list_testimonial_text{
    font-size:14px;
    color:var(--pc-text-secondary);
    line-height:1.7;
    margin:0 0 16px;
    font-style:italic;
}

.list_testimonial_author strong{
    display:block;
    font-size:14px;
    color:var(--pc-text-primary);
    margin-bottom:2px;
}

.list_testimonial_author span{
    font-size:12px;
    color:var(--pc-text-muted);
}

/* ============================================
   场景入口
   ============================================ */
.list_scene_nav{
    display:grid;
    grid-template-columns:repeat(6,1fr);
    gap:14px;
    padding:16px;
    background:var(--pc-bg-card);
    border-radius:var(--pc-radius);
    box-shadow:var(--pc-shadow-sm);
    border:1px solid var(--pc-border-light);
    margin:16px 0;
}

.list_scene_item{
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:8px;
    padding:18px 10px;
    border-radius:var(--pc-radius);
    text-decoration:none;
    color:var(--pc-text-secondary);
    transition:var(--pc-transition);
    background:var(--pc-bg-secondary);
}

.list_scene_item:hover{
    background:var(--pc-gradient-primary);
    color:#fff;
    transform:translateY(-3px);
    box-shadow:var(--pc-shadow-md);
}

.list_scene_icon{
    font-size:28px;
    line-height:1;
}

.list_scene_item span:last-child{
    font-size:13px;
    font-weight:500;
}

/* ============================================
   FAQ 全宽
   ============================================ */
.list_faq_full{
    padding:24px 0;
}

.list_faq_grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:12px;
    margin-top:16px;
}

.faq_item{
    background:var(--pc-bg-card);
    border-radius:var(--pc-radius);
    overflow:hidden;
    box-shadow:var(--pc-shadow-sm);
    border:1px solid var(--pc-border-light);
    transition:var(--pc-transition);
}

.faq_item:hover{
    box-shadow:var(--pc-shadow-md);
    border-color:var(--pc-color-primary);
}

.faq_item.open{
    box-shadow:var(--pc-shadow-md);
    border-color:var(--pc-color-primary);
}

.faq_q{
    padding:16px 20px;
    font-size:14px;
    font-weight:600;
    color:var(--pc-text-primary);
    cursor:pointer;
    display:flex;
    justify-content:space-between;
    align-items:center;
    transition:background 0.2s;
}

.faq_q:hover{
    background:var(--pc-bg-secondary);
}

.faq_q span{
    font-size:20px;
    color:var(--pc-color-primary);
    transition:transform 0.3s;
    font-weight:300;
    line-height:1;
}

.faq_item.open .faq_q{
    background:rgba(30,64,175,0.04);
    color:var(--pc-color-primary);
}

.faq_item.open .faq_q span{
    transform:rotate(45deg);
}

.faq_a{
    max-height:0;
    overflow:hidden;
    transition:max-height 0.35s ease;
}

.faq_item.open .faq_a{
    max-height:200px;
}

.faq_a p{
    padding:0 20px 16px;
    font-size:13px;
    color:var(--pc-text-secondary);
    line-height:1.7;
    margin:0;
}

/* ============================================
   技术资源 全宽
   ============================================ */
.list_tech_resource_full{
    padding:20px 0;
}

.list_tech_grid_full{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:16px;
    margin-top:16px;
}

.list_tech_card_full{
    background:var(--pc-bg-card);
    border-radius:var(--pc-radius);
    padding:24px 18px;
    text-align:center;
    text-decoration:none;
    color:var(--pc-text-primary);
    box-shadow:var(--pc-shadow-sm);
    border:1px solid var(--pc-border-light);
    transition:var(--pc-transition);
    position:relative;
    overflow:hidden;
}

.list_tech_card_full::before{
    content:"";
    position:absolute;
    top:0;left:0;right:0;
    height:3px;
    background:var(--pc-gradient-primary);
    transform:scaleX(0);
    transform-origin:left;
    transition:transform 0.4s;
}

.list_tech_card_full:hover::before{
    transform:scaleX(1);
}

.list_tech_card_full:hover{
    transform:translateY(-4px);
    box-shadow:var(--pc-shadow-lg);
    border-color:var(--pc-color-primary);
}

.list_tech_card_icon{
    font-size:36px;
    margin-bottom:12px;
    line-height:1;
}

.list_tech_card_full h4{
    font-size:15px;
    font-weight:700;
    color:var(--pc-text-primary);
    margin:0 0 6px;
}

.list_tech_card_full p{
    font-size:12px;
    color:var(--pc-text-secondary);
    margin:0 0 10px;
    line-height:1.5;
}

.list_tech_card_link{
    font-size:13px;
    color:var(--pc-color-primary);
    font-weight:600;
}

/* ============================================
   相关资讯
   ============================================ */
.list_articles{
    padding:20px 0;
}

.list_articles_grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:18px;
    margin-top:16px;
}

.list_article_card{
    background:var(--pc-bg-card);
    border-radius:var(--pc-radius);
    padding:24px 22px;
    text-decoration:none;
    color:var(--pc-text-primary);
    box-shadow:var(--pc-shadow-sm);
    border:1px solid var(--pc-border-light);
    transition:var(--pc-transition);
    display:flex;
    flex-direction:column;
    gap:10px;
}

.list_article_card:hover{
    transform:translateY(-4px);
    box-shadow:var(--pc-shadow-lg);
    border-color:var(--pc-color-primary);
}

.list_article_icon{
    font-size:32px;
    line-height:1;
}

.list_article_card h4{
    font-size:16px;
    font-weight:700;
    color:var(--pc-text-primary);
    margin:0;
}

.list_article_card p{
    font-size:13px;
    color:var(--pc-text-secondary);
    line-height:1.6;
    margin:0;
    flex:1;
}

.list_article_link{
    font-size:13px;
    color:var(--pc-color-primary);
    font-weight:600;
}

/* ============================================
   AI 机器人
   ============================================ */
.list_ai_chat{
    position:fixed;
    right:20px;bottom:20px;
    z-index:998;
}

.list_ai_chat_btn{
    width:56px;height:56px;
    border-radius:50%;
    background:var(--pc-gradient-primary);
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    cursor:pointer;
    box-shadow:0 8px 24px rgba(30,64,175,0.35);
    transition:var(--pc-transition);
    position:relative;
}

.list_ai_chat_btn:hover{
    transform:scale(1.08);
    box-shadow:0 12px 32px rgba(30,64,175,0.45);
}

.list_ai_chat_btn svg{
    width:26px;height:26px;
}

.list_ai_chat_badge{
    position:absolute;
    top:-4px;right:-4px;
    background:var(--pc-color-accent);
    color:#fff;
    font-size:10px;
    font-weight:700;
    padding:2px 6px;
    border-radius:var(--pc-radius-full);
    border:2px solid #fff;
}

.list_ai_chat_panel{
    position:absolute;
    bottom:70px;right:0;
    width:320px;
    background:var(--pc-bg-card);
    border-radius:var(--pc-radius);
    box-shadow:var(--pc-shadow-xl);
    border:1px solid var(--pc-border-light);
    overflow:hidden;
    display:none;
}

.list_ai_chat_panel.show{
    display:block;
    animation:pcFadeIn 0.3s ease;
}

.list_ai_chat_header{
    padding:16px 20px;
    background:var(--pc-gradient-primary);
    color:#fff;
    display:flex;
    justify-content:space-between;
    align-items:center;
}

.list_ai_chat_header strong{
    font-size:15px;
}

.list_ai_chat_close{
    cursor:pointer;
    font-size:22px;
    line-height:1;
    opacity:0.8;
}

.list_ai_chat_close:hover{
    opacity:1;
}

.list_ai_chat_body{
    padding:16px 20px;
    max-height:300px;
    overflow-y:auto;
}

.list_ai_msg_bot{
    background:var(--pc-bg-secondary);
    padding:10px 14px;
    border-radius:var(--pc-radius-sm);
    font-size:13px;
    color:var(--pc-text-primary);
    line-height:1.6;
    margin-bottom:12px;
}

.list_ai_quick{
    display:flex;
    flex-direction:column;
    gap:6px;
}

.list_ai_quick_item{
    padding:8px 12px;
    background:var(--pc-bg-card);
    border:1px solid var(--pc-border-light);
    border-radius:var(--pc-radius-sm);
    font-size:12px;
    color:var(--pc-text-secondary);
    text-decoration:none;
    transition:var(--pc-transition);
}

.list_ai_quick_item:hover{
    background:var(--pc-color-primary);
    color:#fff;
    border-color:var(--pc-color-primary);
}

.list_ai_chat_footer{
    padding:12px 16px;
    border-top:1px solid var(--pc-border-light);
    display:flex;
    gap:8px;
    background:var(--pc-bg-secondary);
}

.list_ai_chat_input{
    flex:1;
    padding:10px 14px;
    background:var(--pc-bg-card);
    border:1px solid var(--pc-border-light);
    border-radius:var(--pc-radius-full);
    font-size:13px;
    color:var(--pc-text-muted);
    text-decoration:none;
}

.list_ai_chat_call{
    width:38px;height:38px;
    background:var(--pc-color-green);
    color:#fff;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    text-decoration:none;
    font-size:16px;
}

/* ============================================
   悬浮 CTA
   ============================================ */
.list_float_cta{
    position:fixed;
    right:20px;
    top:50%;
    transform:translateY(-50%);
    z-index:997;
    display:flex;
    flex-direction:column;
    gap:10px;
    background:var(--pc-bg-card);
    border-radius:var(--pc-radius-full);
    padding:8px;
    box-shadow:var(--pc-shadow-lg);
    border:1px solid var(--pc-border-light);
}

.list_float_cta_close{
    position:absolute;
    top:-8px;right:-8px;
    width:22px;height:22px;
    background:var(--pc-text-muted);
    color:#fff;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    cursor:pointer;
    font-size:14px;
    line-height:1;
    border:2px solid #fff;
}

.list_float_cta_close:hover{
    background:var(--pc-color-red);
}

.list_float_cta_item{
    width:44px;height:44px;
    border-radius:50%;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    text-decoration:none;
    color:#fff;
    transition:var(--pc-transition);
    position:relative;
}

.list_float_cta_item svg{
    width:20px;height:20px;
}

.list_float_cta_item span{
    display:none;
    position:absolute;
    right:54px;
    background:var(--pc-text-primary);
    color:#fff;
    padding:4px 10px;
    border-radius:var(--pc-radius-sm);
    font-size:12px;
    white-space:nowrap;
}

.list_float_cta_item:hover span{
    display:block;
}

.list_float_cta_call{
    background:var(--pc-color-green);
}

.list_float_cta_chat{
    background:var(--pc-color-primary);
}

.list_float_cta_top{
    background:var(--pc-text-secondary);
}

.list_float_cta_item:hover{
    transform:scale(1.1);
}

/* ============================================
   滚动淡入动画
   ============================================ */
.fade-in-up{
    opacity:0;
    transform:translateY(24px);
    transition:opacity 0.7s ease,transform 0.7s ease;
}

.fade-in-up.visible{
    opacity:1;
    transform:translateY(0);
}

/* ============================================
   响应式
   ============================================ */
@media (max-width:1200px){
    .list_grid{grid-template-columns:repeat(3,1fr);}
    .list_scene_nav{grid-template-columns:repeat(3,1fr);}
    .list_testimonial_grid{grid-template-columns:repeat(2,1fr);}
    .list_articles_grid{grid-template-columns:repeat(2,1fr);}
    .list_tech_grid_full{grid-template-columns:repeat(2,1fr);}
}

@media (max-width:992px){
    .list_two_col{grid-template-columns:1fr;}
    .list_sidebar{position:static;}
    .list_grid{grid-template-columns:repeat(3,1fr);}
    .list_seo_header{flex-direction:column;align-items:flex-start;}
    .list_seo_desc{padding-left:0;border-left:none;border-top:2px solid var(--pc-color-primary);padding-top:12px;}
}

@media (max-width:768px){
    .list_grid{grid-template-columns:repeat(2,1fr);}
    .list_banner{height:140px;}
    .list_seo_header h1{font-size:24px;}
    .list_option_grid{grid-template-columns:repeat(2,1fr);}
    .list_faq_grid{grid-template-columns:1fr;}
    .list_testimonial_grid{grid-template-columns:1fr;}
    .list_articles_grid{grid-template-columns:1fr;}
    .list_tech_grid_full{grid-template-columns:repeat(2,1fr);}
    .list_scene_nav{grid-template-columns:repeat(2,1fr);}
    .list_section_title{font-size:20px;}
    .list_selector_wrap{padding:20px 16px;}
    .list_rfq{padding:18px 16px;}
    .list_trust{flex-direction:column;align-items:flex-start;}
    .list_trust_divider{display:none;}
    .list_ai_chat_panel{width:calc(100vw - 40px);right:-10px;}
}

@media (max-width:480px){
    .list_grid{grid-template-columns:1fr;}
    .list_option_grid{grid-template-columns:1fr;}
    .list_tech_grid_full{grid-template-columns:1fr;}
    .list_banner{height:120px;}
    .list_seo_header{padding:20px 18px;}
    .list_seo_header h1{font-size:20px;}
    .list_product_wrap{padding:16px;}
    .list_compare_actions{flex-direction:column;}
    .list_float_cta{bottom:80px;top:auto;transform:none;flex-direction:row;right:50%;transform:translateX(50%);}
}

/* ============================================
   移动端底部悬浮CTA横条
   ============================================ */
@media (max-width:768px){
    .list_float_cta{
        top:auto;
        bottom:20px;
        right:50%;
        transform:translateX(50%);
        flex-direction:row;
        border-radius:var(--pc-radius-full);
        padding:6px 10px;
    }
    .list_float_cta_close{
        top:-6px;right:-6px;
    }
    .list_float_cta_item span{
        display:none !important;
    }
    .list_float_cta_item{
        width:40px;height:40px;
    }
    .list_ai_chat{
        bottom:80px;
    }
}