/* ===== 虚拟仿真实验系统样式 ===== */
:root{
  --red:#9F2925; --red-d:#7C1F1C; --red-l:#f7eceb;
  --ink:#23272b; --ink2:#5b646d; --ink3:#8b949c;
  --line:#e3e7ea; --bg:#f2f4f6; --card:#fff;
  --green:#2e8b57; --amber:#c8860d;
}
*{margin:0;padding:0;box-sizing:border-box;}
html,body{height:100%;}
body{font-family:"Microsoft YaHei","PingFang SC",sans-serif;color:var(--ink);background:var(--bg);font-size:14px;line-height:1.65;-webkit-font-smoothing:antialiased;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:13px;color:var(--ink);border:1px solid var(--line);border-radius:6px;padding:8px 10px;background:#fff;outline:none;width:100%;}
input:focus,select:focus,textarea:focus{border-color:var(--red);box-shadow:0 0 0 3px rgba(159,41,37,.08);}
input[readonly]{background:#f6f7f8;color:var(--ink2);}

/* 顶栏 */
.exp-top{height:62px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 20px;position:relative;z-index:20;}
.et-left{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit;}
.et-logo{width:40px;height:40px;object-fit:contain;}
.et-txt{display:flex;flex-direction:column;line-height:1.35;}
.et-txt b{font-size:17px;letter-spacing:1px;color:var(--red);font-family:"STZhongsong","SimSun",serif;}
.et-txt em{font-style:normal;font-size:12px;color:var(--ink3);letter-spacing:1px;}
.et-right{display:flex;align-items:center;gap:22px;}
.et-stat{text-align:center;line-height:1.25;}
.et-stat em{font-style:normal;display:block;font-size:16px;font-weight:700;color:var(--red);font-family:"Times New Roman",serif;letter-spacing:.5px;}
.et-stat span{font-size:11px;color:var(--ink3);}
.et-quit{font-size:12.5px;color:var(--ink2);border:1px solid var(--line);border-radius:6px;padding:7px 14px;text-decoration:none;}
.et-quit:hover{border-color:var(--red);color:var(--red);}

/* 三列 */
.exp-main{display:grid;grid-template-columns:216px minmax(420px,1fr) 430px;height:calc(100vh - 62px);overflow:hidden;}

/* 左列 */
.col-steps{background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;overflow:hidden;}
.cs-head{padding:14px 14px 10px;border-bottom:1px solid var(--line);}
.cs-t{display:flex;justify-content:space-between;align-items:baseline;font-size:13px;font-weight:700;color:var(--ink);}
.cs-t span{font-weight:400;font-size:11.5px;color:var(--ink3);}
.cs-bar{height:4px;background:#eef1f3;border-radius:2px;margin-top:9px;overflow:hidden;}
.cs-bar i{display:block;height:100%;width:0;background:var(--red);transition:width .3s;}
.cs-list{flex:1;overflow:auto;padding:6px 0 20px;}
.sg-title{font-size:11px;color:var(--ink3);letter-spacing:2px;padding:12px 14px 5px;}
.step-item{display:flex;align-items:center;gap:8px;padding:8px 12px 8px 14px;cursor:pointer;border-left:3px solid transparent;font-size:12.5px;color:var(--ink2);}
.step-item:hover{background:#fafbfc;}
.si-no{font-family:"Times New Roman",serif;font-size:12px;color:var(--ink3);width:18px;flex:none;}
.si-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.si-sc{font-size:11px;color:var(--ink3);flex:none;font-family:"Times New Roman",serif;}
.step-item.current{background:var(--red-l);border-left-color:var(--red);color:var(--red);font-weight:700;}
.step-item.current .si-no,.step-item.current .si-sc{color:var(--red);}
.step-item.done .si-sc{color:var(--green);font-weight:700;}
.step-item.locked{opacity:.45;cursor:not-allowed;}

/* 中列 */
.col-stage{position:relative;background:#eef1f3;overflow:hidden;}
#scene3d{width:100%;height:100%;display:block;cursor:grab;}
#scene3d:active{cursor:grabbing;}
.scene-label{position:absolute;transform:translate(-50%,-140%);background:rgba(35,39,43,.9);color:#fff;font-size:12px;padding:5px 10px;border-radius:4px;pointer-events:none;opacity:0;transition:opacity .2s;white-space:nowrap;}
.scene-label:after{content:"";position:absolute;left:50%;bottom:-4px;width:8px;height:8px;background:rgba(35,39,43,.9);transform:translateX(-50%) rotate(45deg);}
.stage-cap{position:absolute;left:16px;bottom:16px;background:rgba(255,255,255,.92);border-left:3px solid var(--red);padding:8px 14px;font-size:12.5px;color:var(--ink2);border-radius:0 4px 4px 0;max-width:60%;box-shadow:0 2px 10px rgba(0,0,0,.06);}
.stage-tip{position:absolute;right:16px;bottom:16px;font-size:11.5px;color:var(--ink3);background:rgba(255,255,255,.85);padding:5px 10px;border-radius:4px;}
.stage-badge{position:absolute;left:16px;top:16px;display:flex;align-items:center;gap:7px;background:rgba(35,39,43,.78);color:#fff;font-size:11.5px;padding:5px 11px;border-radius:20px;}
.stage-badge i{width:6px;height:6px;border-radius:50%;background:#3ddc84;box-shadow:0 0 6px #3ddc84;}

/* 右列 */
.col-panel{background:#fff;border-left:1px solid var(--line);display:flex;flex-direction:column;overflow:hidden;}
.panel-scroll{flex:1;overflow:auto;padding:18px 20px 8px;}
.task-head h2{font-size:17px;color:var(--ink);letter-spacing:.5px;line-height:1.4;}
.task-goal{font-size:12.5px;color:var(--ink2);margin-top:6px;padding-left:10px;border-left:2px solid var(--line);}
.task-meta{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap;}
.task-meta span{font-size:11px;color:var(--red);background:var(--red-l);border-radius:3px;padding:2px 8px;}
.task-brief{font-size:13px;color:var(--ink);background:#f8f9fa;border-radius:6px;padding:10px 12px;margin:12px 0;}
.task-actions{display:flex;gap:10px;padding:14px 0 18px;position:sticky;bottom:0;background:#fff;}
.btn-main{flex:1;background:var(--red);color:#fff;font-size:14px;padding:11px 0;border-radius:6px;letter-spacing:1px;transition:.2s;}
.btn-main:hover{background:var(--red-d);}
.btn-main:disabled{background:#c8cdd2;cursor:not-allowed;}

/* 通用题型 */
.hint-line{font-size:11.5px;color:var(--ink3);margin-top:8px;}
.opt-list{display:flex;flex-direction:column;gap:7px;}
.opt{display:flex;gap:9px;align-items:flex-start;font-size:13px;line-height:1.6;padding:9px 11px;border:1px solid var(--line);border-radius:6px;cursor:pointer;}
.opt:hover{border-color:#c9b3b2;background:#fdfdfd;}
.opt input{margin-top:3px;flex:none;width:15px;height:15px;accent-color:var(--red);}
.opt:has(input:checked){border-color:var(--red);background:var(--red-l);}

.fm{display:flex;flex-direction:column;gap:9px;}
.fm-row{display:flex;align-items:center;gap:10px;font-size:12.5px;}
.fm-row>span{flex:none;width:104px;color:var(--ink2);}
.fm-row.col{flex-direction:column;align-items:stretch;gap:6px;}
.fm-row.col>span{width:auto;}

/* 分类 */
.cls-pool{display:flex;flex-wrap:wrap;gap:8px;min-height:52px;padding:9px;background:#f8f9fa;border:1px dashed #ccd2d7;border-radius:6px;margin-bottom:10px;}
.chip{background:#fff;border:1px solid var(--line);border-radius:5px;padding:6px 12px;font-size:12.5px;cursor:grab;box-shadow:0 1px 2px rgba(0,0,0,.04);}
.chip.sel{outline:2px solid var(--red);background:var(--red-l);}
.cls-zones{display:grid;grid-template-columns:1fr 1fr;gap:8px;}
.zone{border:1.5px dashed #d6dbdf;border-radius:6px;min-height:78px;padding:7px 9px;background:#fcfdfd;}
.zone b{font-size:11.5px;color:var(--red);letter-spacing:1px;}
.zone-body{display:flex;flex-direction:column;gap:5px;margin-top:5px;}

/* MSDS */
.msds-head{font-size:13px;font-weight:700;color:var(--red);margin-bottom:8px;}
.msds-list{display:flex;flex-direction:column;gap:6px;}
.msds-item{border:1px solid var(--line);border-radius:6px;overflow:hidden;}
.msds-t{width:100%;text-align:left;padding:9px 12px;font-size:13px;font-weight:700;display:flex;justify-content:space-between;align-items:center;background:#fafbfc;}
.msds-flag{font-size:10.5px;font-weight:400;color:var(--ink3);background:#eef1f3;border-radius:3px;padding:1px 7px;}
.msds-flag.done{color:var(--green);background:#e9f6ee;}
.msds-c{display:none;padding:0 12px 11px;font-size:12.5px;color:var(--ink2);line-height:1.75;}
.msds-item.open .msds-c{display:block;}

/* 排序 / 顺序操作 */
.order-pick{display:flex;flex-direction:column;gap:6px;margin-bottom:10px;}
.o-item{text-align:left;padding:8px 12px;border:1px solid var(--line);border-radius:5px;font-size:12.5px;background:#fff;}
.o-item:hover{border-color:var(--red);color:var(--red);}
.o-item.used{opacity:.35;text-decoration:line-through;}
.o-item.trap{border-style:dashed;border-color:#e0b4b2;color:#a4553f;}
.order-seq{background:#f8f9fa;border-radius:6px;padding:9px 12px;min-height:70px;}
.seq-title{font-size:11px;color:var(--ink3);margin-bottom:4px;}
#seqList{list-style:none;counter-reset:s;}
#seqList li{display:flex;justify-content:space-between;font-size:12.5px;padding:4px 0;border-bottom:1px dashed #e8ecef;counter-increment:s;}
#seqList li:before{content:counter(s) ". ";color:var(--red);font-weight:700;}
#seqList li span{flex:1;margin-left:4px;}
#seqList li i{font-style:normal;color:var(--ink3);cursor:pointer;padding:0 4px;}
.seq-warn{margin-top:8px;font-size:12px;color:#a4553f;background:#fdf1ef;border-left:3px solid #c0392b;padding:8px 10px;border-radius:0 4px 4px 0;}
.hood-warn{font-size:12px;color:var(--green);background:#eef8f2;border-radius:5px;padding:6px 10px;margin-bottom:8px;}

/* 匹配 / 核验 / 判断 */
.mt,.vf{width:100%;border-collapse:collapse;font-size:12.5px;}
.mt th,.vf th{background:#f4f6f7;font-weight:700;font-size:11.5px;color:var(--ink2);padding:7px 8px;text-align:left;border-bottom:1px solid var(--line);}
.mt td,.vf td{padding:7px 8px;border-bottom:1px solid #f0f3f5;}
.mt select{padding:5px 8px;font-size:12.5px;}
.vf-btns{display:flex;gap:5px;}
.vf-btns button{font-size:11.5px;border:1px solid var(--line);border-radius:4px;padding:3px 9px;color:var(--ink2);}
.vf-btns button.on{background:var(--red);color:#fff;border-color:var(--red);}
.judge-list{display:flex;flex-direction:column;gap:7px;}
.judge-row{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:8px 10px;border:1px solid var(--line);border-radius:6px;}
.j-text{font-size:12.5px;flex:1;}
.j-btns{display:flex;gap:4px;flex:none;}
.j-btns button{font-size:11.5px;border:1px solid var(--line);border-radius:4px;padding:4px 9px;color:var(--ink2);}
.j-btns button.on{background:var(--red);color:#fff;border-color:var(--red);}

/* 计算 / 分区 / 热点 / 时间轴 */
.calc-given{font-size:12.5px;background:#f8f9fa;border-radius:5px;padding:9px 12px;margin-bottom:10px;color:var(--ink2);}
.zone-pick{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-bottom:12px;}
.zbtn{font-size:12.5px;padding:9px 6px;border:1px solid var(--line);border-radius:5px;}
.zbtn.on{background:var(--red);color:#fff;border-color:var(--red);}
.hs-tip{font-size:12.5px;color:var(--ink2);margin-bottom:8px;}
.hs-tip b{color:var(--red);font-size:15px;}
.hs-list{list-style:none;display:flex;flex-direction:column;gap:6px;}
.hs-list li{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink3);padding:6px 9px;border:1px dashed var(--line);border-radius:5px;}
.hs-list li i{width:18px;height:18px;border-radius:50%;background:#eef1f3;display:flex;align-items:center;justify-content:center;font-style:normal;font-size:11px;flex:none;}
.hs-list li.ok{color:var(--green);border-color:#b7dfc6;border-style:solid;background:#f4fbf7;}
.hs-list li.ok i{background:var(--green);color:#fff;}
.tl-batch{font-size:12.5px;margin-bottom:8px;color:var(--ink2);}
.tl{display:flex;flex-direction:column;gap:5px;}
.tl-row{display:grid;grid-template-columns:88px 82px 1fr auto;gap:6px;align-items:center;font-size:12px;padding:7px 9px;border:1px solid var(--line);border-radius:5px;}
.tl-t{color:var(--ink3);font-family:"Times New Roman",serif;}
.tl-a{font-weight:700;}
.tl-q{color:var(--ink2);}
.tl-mark{font-size:11px;border:1px solid var(--line);border-radius:4px;padding:2px 7px;color:var(--ink3);}
.tl-row.marked{border-color:var(--red);background:var(--red-l);}
.tl-row.marked .tl-mark{background:var(--red);color:#fff;border-color:var(--red);}

/* 复盘 / 风险 / RAMP */
.rf-mine{background:#f8f9fa;border-radius:6px;padding:9px 12px;font-size:12px;margin-bottom:10px;color:var(--ink2);}
.rf-mine ul{list-style:none;margin-top:4px;max-height:96px;overflow:auto;}
.rf-mine li{padding:2px 0;border-bottom:1px dashed #e8ecef;}
.risk-grid{display:flex;flex-direction:column;gap:7px;}
.risk-card{border:1px solid var(--line);border-radius:6px;padding:8px 10px;}
.risk-card.on{border-color:var(--red);background:var(--red-l);}
.risk-card label{display:flex;gap:8px;font-size:12.5px;align-items:flex-start;cursor:pointer;}
.risk-card input{width:15px;height:15px;margin-top:2px;accent-color:var(--red);flex:none;}
.risk-m{margin-top:6px;font-size:12px;padding:5px 8px;}
.ramp-list{display:flex;flex-direction:column;gap:8px;}
.ramp-row{border:1px solid var(--line);border-radius:6px;padding:9px 11px;}
.ramp-row p{font-size:12.5px;line-height:1.6;}
.ramp-btns{display:flex;gap:5px;margin-top:7px;}
.ramp-btns button{width:32px;height:28px;border:1px solid var(--line);border-radius:4px;font-weight:700;color:var(--ink2);font-family:"Times New Roman",serif;}
.ramp-btns button.on{background:var(--red);color:#fff;border-color:var(--red);}

/* 结果卡 */
.task-result{margin-top:4px;}
.rs-head{display:flex;align-items:center;gap:14px;padding:10px 12px;background:#f8f9fa;border-radius:6px;}
.rs-score{display:flex;align-items:baseline;gap:3px;}
.rs-score b{font-size:28px;color:var(--red);font-family:"Times New Roman",serif;line-height:1;}
.rs-score span{font-size:12px;color:var(--ink3);}
.rs-score.good b{color:var(--green);}
.rs-score.bad b{color:#c0392b;}
.rs-judge{font-size:12.5px;color:var(--ink2);}
.rs-lines{list-style:none;margin:10px 0;display:flex;flex-direction:column;gap:4px;}
.rs-lines li{font-size:12px;line-height:1.6;display:flex;gap:6px;align-items:flex-start;}
.rs-lines i{font-style:normal;flex:none;font-weight:700;}
.rs-lines li.ok i{color:var(--green);}
.rs-lines li.no{color:#a4553f;}
.rs-lines li.no i{color:#c0392b;}
.rs-extra{font-size:12px;color:#a4553f;background:#fdf1ef;padding:7px 10px;border-radius:4px;margin-bottom:8px;}
.rs-explain{background:var(--red-l);border-radius:6px;padding:10px 12px;}
.rs-explain b{font-size:12px;color:var(--red);}
.rs-explain p{font-size:12.5px;color:var(--ink2);line-height:1.75;margin-top:4px;}

/* AI */
.ai-panel{height:250px;border-top:1px solid var(--line);display:flex;flex-direction:column;background:#fafbfc;}
.ai-head{padding:9px 16px 6px;font-size:12.5px;font-weight:700;color:var(--ink);display:flex;justify-content:space-between;align-items:baseline;}
.ai-head span{font-weight:400;font-size:10.5px;color:var(--ink3);}
.ai-box{flex:1;overflow:auto;padding:4px 16px 8px;display:flex;flex-direction:column;gap:7px;}
.ai-msg{font-size:12.5px;line-height:1.65;padding:8px 11px;border-radius:8px;max-width:92%;word-break:break-word;}
.ai-msg.ai{background:#fff;border:1px solid var(--line);color:var(--ink2);border-top-left-radius:2px;}
.ai-msg.me{background:var(--red);color:#fff;align-self:flex-end;border-top-right-radius:2px;}
.ai-quick{display:flex;gap:5px;padding:0 16px 7px;flex-wrap:wrap;}
.ai-quick button{font-size:11px;color:var(--red);border:1px solid #e6cdcb;background:#fff;border-radius:12px;padding:3px 9px;}
.ai-quick button:hover{background:var(--red-l);}
.ai-input{display:flex;gap:6px;padding:0 16px 12px;}
.ai-input input{padding:7px 10px;font-size:12.5px;}
.ai-input button{flex:none;padding:0 16px;background:var(--red);color:#fff;border-radius:6px;font-size:12.5px;}

/* 登录 */
.mask{position:fixed;inset:0;background:rgba(22,26,30,.62);backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;z-index:50;overflow:auto;padding:24px;}
.mask[hidden]{display:none;}
.login-card{background:#fff;border-radius:10px;width:400px;max-width:100%;padding:32px 34px 26px;text-align:center;box-shadow:0 18px 50px rgba(0,0,0,.22);}
.lc-logo{width:62px;height:62px;object-fit:contain;margin:0 auto 8px;}
.login-card h1{font-size:19px;line-height:1.5;color:var(--red);font-family:"STZhongsong","SimSun",serif;letter-spacing:1px;}
.lc-sub{font-size:12px;color:var(--ink3);letter-spacing:1px;margin-top:4px;}
#loginForm{margin-top:18px;display:flex;flex-direction:column;gap:10px;text-align:left;}
#loginForm label{font-size:12px;color:var(--ink2);}
#loginForm input{margin-top:4px;}
#loginForm .btn-main{margin-top:6px;}
.lc-tip{font-size:11.5px;color:#c0392b;min-height:14px;margin:0;text-align:center;}
.lc-note{margin-top:14px;padding-top:12px;border-top:1px solid var(--line);text-align:left;}
.lc-note b{font-size:11.5px;color:var(--red);}
.lc-note p{font-size:11.5px;color:var(--ink3);line-height:1.7;margin-top:3px;}

/* 报告 */
.report{background:#fff;width:900px;max-width:100%;max-height:94vh;border-radius:8px;display:flex;flex-direction:column;overflow:hidden;}
.report-tools{display:flex;gap:8px;padding:10px 16px;border-bottom:1px solid var(--line);background:#fafbfc;}
.report-tools button{font-size:12.5px;border:1px solid var(--line);border-radius:5px;padding:6px 13px;color:var(--ink2);}
.report-tools button:hover{border-color:var(--red);color:var(--red);}
.report-scroll{overflow:auto;padding:26px 40px 40px;}
.rp-head{text-align:center;border-bottom:2px solid var(--red);padding-bottom:12px;}
.rp-emblem{font-size:11px;letter-spacing:6px;color:var(--red);}
.rp-head h2{font-size:19px;color:var(--ink);margin-top:4px;font-family:"STZhongsong","SimSun",serif;letter-spacing:1px;}
.rp-sub{font-size:12px;color:var(--ink3);margin-top:2px;}
.rp-info{display:flex;flex-wrap:wrap;gap:6px 26px;font-size:12.5px;color:var(--ink2);padding:12px 2px;border-bottom:1px solid var(--line);}
.rp-info b{color:var(--ink);}
.rp-top{display:grid;grid-template-columns:130px 1fr 240px;gap:14px;align-items:center;padding:16px 0;}
.rp-total{text-align:center;}
.rp-num{font-size:52px;font-family:"Times New Roman",serif;color:var(--red);line-height:1;}
.rp-of{font-size:12px;color:var(--ink3);}
.rp-grade{display:inline-block;margin-top:6px;font-size:12.5px;padding:2px 14px;border-radius:12px;background:var(--red-l);color:var(--red);font-weight:700;}
.rp-dims{display:flex;flex-direction:column;gap:7px;}
.rp-dim{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink2);}
.rp-dim span{width:76px;flex:none;}
.rp-bar{flex:1;height:7px;background:#eef1f3;border-radius:4px;overflow:hidden;}
.rp-bar i{display:block;height:100%;background:var(--red);}
.rp-dim em{font-style:normal;font-size:11.5px;color:var(--ink3);width:36px;text-align:right;}
.rp-h3{font-size:14px;color:var(--ink);margin:18px 0 8px;padding-left:9px;border-left:3px solid var(--red);}
.rp-table{width:100%;border-collapse:collapse;font-size:12px;}
.rp-table th{background:#f4f6f7;padding:7px;font-size:11.5px;color:var(--ink2);border:1px solid var(--line);}
.rp-table td{padding:6px 7px;border:1px solid var(--line);text-align:center;}
.rp-table td:nth-child(2){text-align:left;}
.rp-mist{font-size:12px;color:#a4553f;padding-left:20px;line-height:1.8;}
.rp-none{font-size:12.5px;color:var(--green);}
.rp-adv{font-size:12.5px;color:var(--ink2);padding-left:20px;line-height:1.85;}
.rp-foot{font-size:11px;color:var(--ink3);margin-top:20px;padding-top:10px;border-top:1px dashed var(--line);text-align:center;}

/* 滚动条 */
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-thumb{background:#cfd6db;border-radius:4px;}
::-webkit-scrollbar-track{background:transparent;}

/* 窄屏 */
@media (max-width:1360px){
  .exp-main{grid-template-columns:190px minmax(360px,1fr) 390px;}
  .et-txt b{font-size:15.5px;}
}
@media (max-width:1100px){
  .exp-main{grid-template-columns:1fr;grid-template-rows:280px 1fr auto;height:auto;min-height:calc(100vh - 62px);}
  .col-steps{display:none;}
  .col-stage{order:1;height:320px;}
  .col-panel{order:2;border-left:none;border-top:1px solid var(--line);}
  .panel-scroll{overflow:visible;}
}

/* 打印 */
@media print{
  .exp-top,.col-steps,.col-stage,.ai-panel,.report-tools{display:none!important;}
  .mask{position:static;background:none;padding:0;overflow:visible;}
  .report{width:100%;max-height:none;border-radius:0;box-shadow:none;}
  .report-scroll{overflow:visible;padding:0;}
  body{background:#fff;}
  .rp-h3{page-break-after:avoid;}
  .rp-table tr{page-break-inside:avoid;}
}