/* ============================================================
   汽车智能管家 · DEMO
   车主端（手机）+ 硬件端 + AI 端 + 客服端 + 平台端
   视觉基底：ui-kit.css（AstraHex 规范 + 极客跳动品牌红）
   功能范围：严格对齐 PRD 58 项，无功能拓展
   ============================================================ */

/* ============ 布局骨架 ============ */
.stage{height:calc(100vh - var(--top-h));position:relative}
.pane{display:none;height:100%}
.pane.on{display:flex}

/* ============ 顶栏：端切换 ============ */
.endbar{height:var(--top-h);background:var(--side);display:flex;align-items:center;
  gap:20px;padding:0 20px;flex-shrink:0;position:relative;z-index:100}
.endbar .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;
  padding:0;border:none}
.endbar .brand .mk{width:30px;height:30px;border-radius:8px;
  background:linear-gradient(140deg,var(--brand-bright),var(--brand-deep));
  display:grid;place-items:center;color:#fff;font-weight:700;font-family:var(--fh);font-size:14px}
.endbar .brand .nm{font-size:13.5px;font-weight:700;color:#fff;line-height:1.25;font-family:var(--fh)}
.endbar .brand .sv{font-size:11px;color:var(--side-ink)}
.tabs{display:flex;gap:2px;background:rgba(0,0,0,.22);padding:3px;border-radius:10px;
  flex:1;max-width:840px}
.etab{flex:1;padding:7px 10px;border-radius:8px;color:#AEC3D8;font-size:12.5px;font-weight:500;
  display:flex;align-items:center;justify-content:center;gap:7px;transition:.18s;white-space:nowrap}
.etab:hover{background:rgba(255,255,255,.06);color:#fff}
.etab.on{background:rgba(218,37,28,.16);color:#FF8E72;font-weight:600;
  box-shadow:inset 0 0 0 1px rgba(218,37,28,.4)}
.etab .n{font-family:var(--fm);font-size:10px;padding:1px 5px;border-radius:7px;
  background:rgba(255,255,255,.08);color:#A9BED4;font-weight:600}
.etab.on .n{background:rgba(218,37,28,.26);color:#FFB0A6}
.endbar .r{margin-left:auto;display:flex;align-items:center;gap:10px}
.endbar .r .t{color:var(--side-ink);font-size:11.5px;display:flex;align-items:center;gap:6px}
.live{width:7px;height:7px;border-radius:50%;background:#4ADE80;
  box-shadow:0 0 0 3px rgba(74,222,128,.2)}

/* ============ 车主端：手机 + 侧栏 ============ */
.stage-owner{flex:1;display:grid;grid-template-columns:auto 300px;gap:26px;
  padding:20px;overflow:hidden;align-items:center;justify-content:center}
.phone-col{height:100%;display:flex;align-items:center;justify-content:center;overflow:hidden}
.dside{width:300px;height:100%;overflow-y:auto;padding-right:4px}
.dside::-webkit-scrollbar{width:5px}
.phone{width:382px;height:782px;background:#101A22;border-radius:34px;padding:11px;
  box-shadow:var(--sh-3),0 0 0 1.5px rgba(255,255,255,.08) inset;
  position:relative;flex-shrink:0}
.phone::before{content:'';position:absolute;top:20px;left:50%;transform:translateX(-50%);
  width:90px;height:5px;border-radius:99px;background:#0A1216;z-index:10}
.pscreen{width:100%;height:100%;background:var(--bg);border-radius:25px;overflow:hidden;
  display:flex;flex-direction:column}
.sbar{height:37px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;font-size:11.5px;font-weight:600;font-family:var(--fm);
  color:var(--ink-2);position:relative;z-index:9}
.sbar.on-dark{color:#fff}
.abody{flex:1;overflow-y:auto;overflow-x:hidden}
.abody::-webkit-scrollbar{width:4px}
.tabbar{height:60px;flex-shrink:0;display:flex;background:rgba(255,255,255,.97);
  border-top:1px solid var(--line);padding-bottom:3px}
.tb{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;color:var(--ink-soft);font-size:11px;font-weight:500;transition:.15s}
.tb.on{color:var(--brand);font-weight:600}
.tb svg{width:20px;height:20px}

/* 页面容器：全部渲染，靠 class 切换显隐（切页不重建 DOM，保留草稿） */
.pages{position:relative}
.pgwrap{display:none}
.pgwrap.on{display:block;animation:pi .22s ease}
@keyframes pi{from{opacity:0;transform:translateX(8px)}}
.page{display:none;min-height:100%}
.page.on{display:block;animation:pi .22s ease}
.pnav{height:44px;display:flex;align-items:center;padding:0 14px;background:var(--surface);
  border-bottom:1px solid var(--line);gap:10px;position:sticky;top:0;z-index:20}
.pnav .bk{width:26px;height:26px;border-radius:7px;display:grid;place-items:center;
  color:var(--ink-soft);flex-shrink:0}
.pnav .bk:hover{background:var(--line-2);color:var(--ink)}
.pnav h2{font-size:14.5px;font-weight:700;flex:1}

/* 手机内头部 */
.apphead{padding:8px 16px 16px;color:#fff;position:relative;overflow:hidden;
  background:linear-gradient(150deg,#1B2C40,#14263B 55%,#102030)}
.apphead::after{content:'';position:absolute;right:-40px;top:-60px;width:180px;height:180px;
  border-radius:50%;background:rgba(218,37,28,.18)}
.apphead .hd{display:flex;align-items:center;gap:8px;margin-bottom:11px;position:relative}
.apphead .hd .mk{width:24px;height:24px;border-radius:7px;
  background:linear-gradient(140deg,var(--brand-bright),var(--brand-deep));
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:12px;font-family:var(--fh)}
.apphead .hd .t{font-size:11px;color:#AEC3D8}
.apphead h1{font-size:20px;font-weight:700;color:#fff;letter-spacing:.01em;position:relative}
.apphead .s{font-size:11px;color:#AEC3D8;margin-top:3px;position:relative}
.apphead .tags{display:flex;gap:6px;margin-top:9px;position:relative;flex-wrap:wrap}
.apphead .tags .badge{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.12);color:#C6D6E4}

/* 手机内卡片 */
.mcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;margin:10px 12px}
.mcard-h{padding:11px 14px;display:flex;align-items:center;gap:8px;
  border-bottom:1px solid var(--line-2)}
.mcard-h h3{font-size:13.5px;font-weight:700}
.mcard-h .sp{flex:1}
.mcard-b{padding:13px 14px}
.mcard-b.tight{padding:0}

/* 车况主卡 */
.carcard{margin:-14px 12px 0;position:relative;z-index:2}
.carcard-in{display:flex;align-items:flex-start;gap:11px;padding:14px}
.carcard .stats3{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;
  padding:11px 14px;border-top:1px solid var(--line-2);text-align:center}
.carcard .stats3 .v{font-family:var(--fm);font-size:15px;font-weight:700;color:var(--ink)}
.carcard .stats3 .v.warn{color:var(--warn)}
.carcard .stats3 .v.danger{color:var(--danger)}
.carcard .stats3 .k{font-size:10.5px;color:var(--ink-soft);margin-top:2px}

/* 宫格 */
.qgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;padding:10px 8px 12px}
.qbtn{display:flex;flex-direction:column;align-items:center;gap:7px;padding:10px 2px 8px;
  border-radius:var(--r-md);transition:background .16s,transform .16s}
.qbtn:hover{background:var(--surface-2)}
.qbtn:active{transform:scale(.95)}
.qbtn:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
.qi{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;position:relative;
  background:var(--brand-soft);color:var(--brand);
  box-shadow:0 1px 2px rgba(218,37,28,.10),0 4px 10px -4px rgba(218,37,28,.18);
  transition:transform .18s cubic-bezier(.34,1.4,.64,1)}
.qi::after{content:'';position:absolute;inset:0;border-radius:inherit;
  background:linear-gradient(160deg,rgba(255,255,255,.7),transparent 58%);pointer-events:none}
.qbtn:hover .qi{transform:translateY(-2px) scale(1.04)}
.qi.w{background:var(--warn-soft);color:var(--warn)}
.qi.g{background:var(--ok-soft);color:var(--ok)}
.qi.p{background:var(--purple-soft);color:var(--purple)}
.qt{font-size:11.5px;font-weight:600;color:var(--ink-2);white-space:nowrap}

/* 预警条（手机内） */
.malert{display:flex;gap:0;padding:0;overflow:hidden;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);
  margin:10px 12px}
.malert .bar{width:3px;flex-shrink:0;background:var(--danger)}
.malert.warn .bar{background:var(--warn)}
.malert .bd{flex:1;padding:12px 13px;min-width:0}
.malert .hd{display:flex;align-items:flex-start;gap:10px}
.malert .ic{width:30px;height:30px;border-radius:9px;flex-shrink:0;display:grid;
  place-items:center;background:var(--danger-soft);color:var(--danger)}
.malert.warn .ic{background:var(--warn-soft);color:var(--warn)}
.malert .t{font-size:14px;font-weight:700;color:var(--ink);line-height:1.35}
.malert .code{font-family:var(--fm);font-size:10.5px;color:var(--ink-soft);margin-top:3px}
.malert .d{font-size:12.5px;color:var(--ink-2);margin-top:9px;line-height:1.6;
  padding:8px 10px;background:var(--surface-2);border-radius:8px}
.malert .ft{display:flex;align-items:center;justify-content:space-between;gap:8px;
  margin-top:9px;font-family:var(--fm);font-size:11px;color:var(--ink-soft)}
.malert .spk{font-family:var(--fb);color:var(--ok);font-weight:600;display:inline-flex;
  align-items:center;gap:4px}

/* 硬件状态格 */
.hwgrid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.hwcell{display:flex;align-items:center;gap:8px;padding:10px 11px;background:var(--surface-2);
  border:1px solid var(--line);border-radius:var(--r-sm)}
.hwcell .k{font-size:10.5px;color:var(--ink-soft)}
.hwcell .v{font-size:12px;font-weight:600;color:var(--ink);margin-top:1px}

/* 商品网格（手机内） */
.mgoods{display:grid;grid-template-columns:1fr 1fr;gap:9px;padding:12px}
.mgoods .card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;cursor:pointer;transition:border-color .16s,box-shadow .16s,transform .16s;margin:0}
.mgoods .card:hover{border-color:var(--brand);box-shadow:var(--sh-1);transform:translateY(-2px)}
.mgoods .thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--surface-2)}
.mgoods .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s}
.mgoods .card:hover .thumb img{transform:scale(1.05)}
.mgoods .thumb::after{content:'';position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(246,244,239,.05) 0%,rgba(246,244,239,0) 30%,
    rgba(246,244,239,.40) 74%,rgba(246,244,239,.86) 94%,var(--bg) 100%)}
.mgoods .tag{position:absolute;top:7px;left:7px;z-index:2}
.mgoods .hit{position:absolute;top:0;left:0;right:0;height:3px;z-index:2}
.mgoods .info{padding:9px 10px}
.mgoods .nm{font-size:12.5px;font-weight:600;line-height:1.4;color:var(--ink);
  height:35px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.mgoods .mt{display:flex;align-items:center;gap:5px;margin:6px 0}
.mgoods .pr{font-family:var(--fm);font-size:15px;font-weight:700;color:var(--danger)}

/* 侧栏：功能追溯 */
.dside{width:326px;flex-shrink:0}
.dpanel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px;margin-bottom:12px;box-shadow:var(--sh-1)}
.dpanel h4{font-size:13.5px;font-weight:700;margin-bottom:4px;display:flex;
  align-items:center;gap:7px}
.dpanel h4 svg{width:15px;height:15px;color:var(--brand)}
.dpanel .hint{font-size:12px;color:var(--ink-soft);margin-bottom:11px;line-height:1.55}
.fnlist{display:flex;flex-direction:column;gap:2px}
.fnrow{display:flex;gap:9px;align-items:flex-start;padding:8px 0;
  border-bottom:1px solid var(--line-2)}
.fnrow:last-child{border-bottom:none}
.fnrow .nm{font-size:12.5px;font-weight:600;color:var(--ink);line-height:1.4}
.fnrow .ds{font-size:11.5px;color:var(--ink-soft);line-height:1.5;margin-top:2px}

/* 演示动线 */
.step{display:flex;gap:10px;align-items:flex-start;padding:9px 0;
  border-bottom:1px solid var(--line-2);cursor:pointer;transition:background .15s}
.step:last-child{border-bottom:none}
.step:hover .nm{color:var(--brand)}
.step .no{width:20px;height:20px;border-radius:6px;background:var(--brand-soft);
  color:var(--brand-deep);font-family:var(--fm);font-size:11px;font-weight:700;
  display:grid;place-items:center;flex-shrink:0}
.step .nm{font-size:12.5px;font-weight:600;color:var(--ink);transition:color .15s}
.step .ds{font-size:11.5px;color:var(--ink-soft);margin-top:2px}

/* ============ 硬件端 / AI 端控制台 ============ */
.console{flex:1;overflow:auto;padding:20px 22px}
.hwstage{display:grid;grid-template-columns:1fr 400px;gap:16px;align-items:start;
  max-width:1460px;margin:0 auto}
.device{background:linear-gradient(160deg,#1B3049,#14263B);border-radius:var(--r-lg);
  padding:26px;color:#fff;box-shadow:var(--sh-2);position:relative;overflow:hidden}
.device::before{content:'';position:absolute;top:-70px;right:-70px;width:230px;height:230px;
  border-radius:50%;background:radial-gradient(circle,rgba(218,37,28,.2),transparent 68%)}
.device-body{width:170px;height:170px;border-radius:50%;margin:0 auto 18px;
  background:linear-gradient(150deg,#2C3A44,#16212A);box-shadow:inset 0 3px 20px rgba(0,0,0,.5);
  display:grid;place-items:center;border:2px solid #3C4A54}
.device-body svg{width:46px;height:46px;color:#A9BED4}
.hwleds{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:14px}
.hwled{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.06);
  border-radius:var(--r-md);padding:11px 7px;text-align:center;
  transition:background .2s,border-color .2s}
.hwled.on{background:rgba(218,37,28,.14);border-color:rgba(218,37,28,.34)}
.hwled svg{width:19px;height:19px;color:#A9BED4;margin:0 auto 5px;display:block}
.hwled.on svg{color:#FF8E72}
.hwled .lb{font-size:11.5px;color:#C6D6E4;font-weight:600}
.hwled .st{font-size:10.5px;color:#7E96AE;margin-top:2px;font-family:var(--fm)}

/* 终端日志 */
.term{background:#101A22;border-radius:var(--r-md);padding:14px;font-family:var(--fm);
  font-size:12px;line-height:1.85;color:#C6D6E4;max-height:300px;overflow-y:auto;
  min-height:130px}
.term .tm{color:#7E96AE}
.term .ok{color:#5FD3A0}
.term .warn{color:#F0B849}
.term .info{color:#8FB8DC}
.term div{white-space:pre-wrap;word-break:break-word}

/* 流程节点 */
.flow{display:flex;flex-direction:column}
.fnode{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:13px 15px;margin-bottom:20px;box-shadow:var(--sh-1);
  transition:border-color .25s}
.farrow{height:20px;display:grid;place-items:center;color:#B9B3A8}
.farrow svg{width:15px;height:15px;transform:rotate(90deg)}

/* 骨架 */
.skel{background:linear-gradient(90deg,var(--line-2) 25%,#F4F2ED 37%,var(--line-2) 63%);
  background-size:400% 100%;animation:skl 1.3s ease infinite;border-radius:6px;
  height:11px;margin-bottom:8px}
@keyframes skl{0%{background-position:100% 50%}100%{background-position:0 50%}}
.spin{animation:spin 1.1s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* ============ 客服端三栏 ============ */
.cs3{display:grid;grid-template-columns:252px 1fr 300px;width:100%;height:100%;overflow:hidden}
.cs3 button{width:100%;text-align:left}
.cs3 .conv{flex:1;overflow-y:auto;padding:18px;background:var(--bg)}
.cs3 .aside{background:var(--surface);border-left:1px solid var(--line);overflow-y:auto}
.cs3 .list{background:var(--surface);border-right:1px solid var(--line);overflow-y:auto}
.cs3 .csSend{flex:0 0 auto;width:auto;align-self:center}
.cs-av{width:54px;height:54px;border-radius:50%;margin:0 auto 9px;
  background:linear-gradient(140deg,#24455F,#35617F);display:grid;place-items:center;
  color:#fff;font-size:20px;font-weight:600;font-family:var(--fh);padding-bottom:2px}

/* ============ 平台端 ============ */
.pc2{display:grid;grid-template-columns:var(--side-w) 1fr;width:100%;height:100%;overflow:hidden}

/* ============ 弹窗 / Toast ============ */
.mask{position:fixed;inset:0;background:rgba(20,38,59,.44);backdrop-filter:blur(2px);
  z-index:9000;display:grid;place-items:center;animation:fd .18s}
@keyframes fd{from{opacity:0}}
.modal{background:var(--surface);border-radius:var(--r-lg);width:440px;max-width:92vw;
  max-height:84vh;overflow:hidden;box-shadow:var(--sh-3);animation:mi .24s}
@keyframes mi{from{opacity:0;transform:translateY(16px) scale(.97)}}
.mhead{padding:15px 18px;border-bottom:1px solid var(--line);display:flex;
  align-items:center;gap:10px}
.mhead h3{font-size:15px;font-weight:700;flex:1}
.mx{width:26px;height:26px;border-radius:7px;display:grid;place-items:center;
  color:var(--ink-soft);flex-shrink:0}
.mx:hover{background:var(--line-2)}
.mbody{padding:18px;overflow-y:auto}
.mfoot{padding:13px 18px;border-top:1px solid var(--line);display:flex;gap:9px;
  justify-content:flex-end;background:var(--surface-2)}

#toast{position:fixed;top:68px;left:50%;transform:translateX(-50%);z-index:9999;
  display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none}
.toast{background:var(--ink);color:#fff;padding:10px 16px;border-radius:10px;font-size:13px;
  box-shadow:var(--sh-2);animation:ti .26s;max-width:440px;display:flex;align-items:center;gap:7px}
.toast.ok{background:var(--ok)}
.toast.err{background:var(--danger)}
.toast.warn{background:var(--warn)}
@keyframes ti{from{opacity:0;transform:translateY(-12px)}}

/* 星 */
.star{border-radius:4px;padding:1px;transition:color .15s,transform .15s}
.star svg{width:26px;height:26px}
.star:hover{transform:scale(1.12)}
.star.on{color:var(--metal)}

/* 响应式 */
@media (max-width:1280px){
  .dside{display:none}
  .hwstage{grid-template-columns:1fr}
  .cs3{grid-template-columns:210px 1fr}
  .cs3 .aside{display:none}
}
@media (max-width:900px){
  .stage-owner{padding:12px}
  .phone{width:100%;max-width:382px;height:720px}
  .tabs .etab span:not(.n){display:none}
}