/* ============================================================
   实研智答 · 实验室智能助手大模型  —  汇报演示前端
   福建中医药大学 科技创新与转化中心
   ============================================================ */

:root{
  --bg:#071310;
  --bg-2:#0A1A15;
  --panel:#0F231D;
  --panel-2:#122A23;
  --panel-glass:rgba(255,255,255,.035);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --text:#E8F3EE;
  --text-2:#9DB5AC;
  --text-3:#68817A;
  --brand:#2FD6A5;
  --brand-2:#12A57C;
  --brand-soft:rgba(47,214,165,.12);
  --gold:#D6B36A;
  --gold-soft:rgba(214,179,106,.12);
  --danger:#FF6B5A;
  --danger-soft:rgba(255,107,90,.12);
  --warn:#F2B33D;
  --warn-soft:rgba(242,179,61,.12);
  --info:#5AA9FF;
  --info-soft:rgba(90,169,255,.12);
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --r:14px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:"SF Mono",ui-monospace,"JetBrains Mono",Menlo,monospace;
}

[data-theme="light"]{
  --bg:#F2F6F4;
  --bg-2:#E9F0ED;
  --panel:#FFFFFF;
  --panel-2:#F7FAF9;
  --panel-glass:rgba(12,40,32,.02);
  --line:rgba(12,40,32,.11);
  --line-strong:rgba(12,40,32,.2);
  --text:#0C2820;
  --text-2:#4A635B;
  --text-3:#7D918B;
  --brand:#0E8C68;
  --brand-2:#0B6E52;
  --brand-soft:rgba(14,140,104,.09);
  --gold:#9A7B32;
  --gold-soft:rgba(154,123,50,.1);
  --danger:#D8442F;
  --danger-soft:rgba(216,68,47,.09);
  --warn:#B87A10;
  --warn-soft:rgba(184,122,16,.1);
  --info:#2563C9;
  --info-soft:rgba(37,99,201,.09);
  --shadow:0 14px 40px rgba(12,40,32,.1);
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-size:14px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  overflow:hidden;
}
/* 背景光晕 */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(47,214,165,.13), transparent 60%),
    radial-gradient(760px 460px at 96% 8%, rgba(214,179,106,.09), transparent 62%);
}
[data-theme="light"] body::before{
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(14,140,104,.07), transparent 60%),
    radial-gradient(760px 460px at 96% 8%, rgba(154,123,50,.06), transparent 62%);
}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:8px}
::-webkit-scrollbar-track{background:transparent}

/* ================= 布局 ================= */
.app{position:relative;z-index:1;display:grid;grid-template-columns:238px 1fr;height:100vh}

/* ---- 侧栏 ---- */
.sidebar{
  display:flex;flex-direction:column;
  border-right:1px solid var(--line);
  background:linear-gradient(180deg,var(--bg-2),var(--bg));
  padding:20px 14px 16px;
}
.brand{display:flex;align-items:center;gap:10px;padding:0 6px 18px}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  display:grid;place-items:center;position:relative;
  background:linear-gradient(140deg,var(--brand),var(--brand-2));
  box-shadow:0 6px 18px rgba(47,214,165,.3);
}
.brand-mark svg{width:21px;height:21px}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.5px;line-height:1.2}
.brand-sub{font-size:10.5px;color:var(--text-3);letter-spacing:.4px;margin-top:2px}

.nav{display:flex;flex-direction:column;gap:3px;margin-top:4px}
.nav-label{font-size:10px;letter-spacing:1.6px;color:var(--text-3);padding:14px 10px 6px;font-weight:600}
.nav-item{
  display:flex;align-items:center;gap:10px;
  padding:9px 11px;border-radius:10px;cursor:pointer;
  color:var(--text-2);font-size:13.5px;
  border:1px solid transparent;transition:.16s;
  user-select:none;
}
.nav-item svg{width:16px;height:16px;flex:0 0 16px;opacity:.85}
.nav-item:hover{background:var(--panel-glass);color:var(--text)}
.nav-item.active{
  background:var(--brand-soft);color:var(--brand);
  border-color:rgba(47,214,165,.28);font-weight:600;
}
[data-theme="light"] .nav-item.active{border-color:rgba(14,140,104,.22)}
.nav-item .idx{font-family:var(--mono);font-size:10px;opacity:.5;margin-left:auto}

.side-foot{margin-top:auto;padding:14px 8px 0;border-top:1px solid var(--line)}
.side-foot .row{display:flex;justify-content:space-between;font-size:11px;color:var(--text-3);padding:2px 0}
.side-foot .row b{color:var(--text-2);font-weight:500}
.dot-live{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block;margin-right:5px;
  box-shadow:0 0 0 3px var(--brand-soft);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ---- 主区 ---- */
.main{display:flex;flex-direction:column;min-width:0;height:100vh}
.topbar{
  height:58px;flex:0 0 58px;display:flex;align-items:center;gap:14px;
  padding:0 24px;border-bottom:1px solid var(--line);
  background:rgba(7,19,16,.5);backdrop-filter:blur(12px);
}
[data-theme="light"] .topbar{background:rgba(255,255,255,.66)}
.topbar .crumb{font-size:13px;color:var(--text-2)}
.topbar .crumb b{color:var(--text);font-weight:600}
.topbar .crumb .sep{margin:0 7px;color:var(--text-3)}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:9px}

.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;border-radius:8px;font-size:11.5px;
  border:1px solid var(--line);background:var(--panel-glass);color:var(--text-2);
}
.chip.ok{color:var(--brand);border-color:rgba(47,214,165,.3);background:var(--brand-soft)}
.chip.idle{color:var(--warn);border-color:rgba(242,179,61,.3);background:var(--warn-soft)}
.chip svg{width:12px;height:12px}

.icon-btn{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;cursor:pointer;
  border:1px solid var(--line);background:var(--panel-glass);color:var(--text-2);transition:.16s;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(47,214,165,.35)}
.icon-btn svg{width:15px;height:15px}

.content{flex:1;overflow:auto;padding:22px 26px 32px}
.page{display:none;animation:fade .28s ease}
.page.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ================= 通用组件 ================= */
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:18px;position:relative;overflow:hidden;
}
.card.hover{transition:.2s}
.card.hover:hover{border-color:rgba(47,214,165,.32);transform:translateY(-2px)}
.card-title{display:flex;align-items:center;gap:8px;font-size:13.5px;font-weight:650;margin-bottom:12px}
.card-title .tag{font-size:10px;font-weight:500;color:var(--text-3);border:1px solid var(--line);padding:1px 6px;border-radius:5px;letter-spacing:.3px}
.card-title .more{margin-left:auto;font-size:11.5px;color:var(--text-3);font-weight:400;cursor:pointer}
.card-title .more:hover{color:var(--brand)}

.sec-head{display:flex;align-items:flex-end;gap:12px;margin:26px 0 13px}
.sec-head:first-child{margin-top:0}
.sec-head h2{font-size:15.5px;font-weight:650;letter-spacing:.2px}
.sec-head p{font-size:12px;color:var(--text-3)}
.sec-head .line{flex:1;height:1px;background:var(--line);margin-bottom:7px}

.grid{display:grid;gap:13px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g6{grid-template-columns:repeat(6,1fr)}

/* ---- Hero ---- */
.hero{
  position:relative;border:1px solid var(--line);border-radius:18px;padding:30px 32px;
  background:linear-gradient(120deg,var(--panel) 0%,var(--panel-2) 100%);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-90px;top:-110px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,214,165,.16),transparent 68%);
}
.hero .kicker{
  display:inline-flex;align-items:center;gap:7px;font-size:11px;letter-spacing:1.4px;
  color:var(--brand);border:1px solid rgba(47,214,165,.3);background:var(--brand-soft);
  padding:4px 10px;border-radius:20px;margin-bottom:14px;font-weight:600;
}
.hero h1{font-size:31px;letter-spacing:-.4px;line-height:1.25;font-weight:750}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero .lede{font-size:13.5px;color:var(--text-2);max-width:640px;margin-top:11px}
.hero .meta{display:flex;gap:26px;margin-top:20px;position:relative;z-index:1;flex-wrap:wrap}
.hero .meta .it{font-size:11.5px;color:var(--text-3)}
.hero .meta .it b{display:block;font-size:19px;color:var(--text);font-weight:700;font-family:var(--mono);letter-spacing:-.5px}
.hero .meta .it b span{font-size:11px;color:var(--text-3);font-weight:400;margin-left:2px;font-family:var(--font)}
.hero-actions{position:absolute;right:32px;bottom:28px;display:flex;gap:9px;z-index:2}

.btn{
  display:inline-flex;align-items:center;gap:7px;padding:9px 16px;border-radius:10px;
  font-size:12.5px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:.16s;
  font-family:var(--font);
}
.btn svg{width:14px;height:14px}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#04140F;box-shadow:0 6px 18px rgba(47,214,165,.22)}
.btn-primary:hover{filter:brightness(1.07);transform:translateY(-1px)}
[data-theme="light"] .btn-primary{color:#fff}
.btn-ghost{background:var(--panel-glass);border-color:var(--line);color:var(--text-2)}
.btn-ghost:hover{border-color:var(--line-strong);color:var(--text)}
.btn-sm{padding:6px 11px;font-size:11.5px;border-radius:8px}

/* ---- 平台卡 ---- */
.plat{
  display:flex;flex-direction:column;gap:8px;min-height:120px;
  border:1px solid var(--line);border-radius:var(--r);padding:15px;background:var(--panel);
  transition:.2s;cursor:pointer;position:relative;overflow:hidden;
}
.plat::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--brand),transparent);opacity:.55;
}
.plat:hover{border-color:rgba(47,214,165,.3);background:var(--panel-2)}
.plat .no{font-family:var(--mono);font-size:10px;color:var(--brand);letter-spacing:1px;opacity:.9}
.plat h3{font-size:13.5px;font-weight:650;line-height:1.4}
.plat p{font-size:11.5px;color:var(--text-3);line-height:1.55}
.plat .foot{margin-top:auto;display:flex;gap:6px;flex-wrap:wrap}
.mini-tag{font-size:10px;padding:2px 7px;border-radius:5px;background:var(--panel-glass);border:1px solid var(--line);color:var(--text-2)}

/* ---- 目标列表 ---- */
.goal{display:flex;gap:11px;padding:11px 0;border-bottom:1px dashed var(--line)}
.goal:last-child{border-bottom:0;padding-bottom:0}
.goal .n{
  flex:0 0 22px;height:22px;border-radius:7px;display:grid;place-items:center;
  font-family:var(--mono);font-size:11px;font-weight:700;
  background:var(--brand-soft);color:var(--brand);border:1px solid rgba(47,214,165,.24);
}
.goal .t{font-size:12.5px;color:var(--text-2);line-height:1.6}
.goal .t b{color:var(--text);font-weight:600}

/* ---- 角色卡 ---- */
.role{border:1px solid var(--line);border-radius:var(--r);padding:15px;background:var(--panel)}
.role h4{font-size:13px;margin-bottom:9px;display:flex;align-items:center;gap:7px}
.role h4 .ic{width:24px;height:24px;border-radius:7px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand)}
.role h4 .ic svg{width:13px;height:13px}
.role ul{list-style:none;display:flex;flex-direction:column;gap:6px}
.role li{font-size:11.5px;color:var(--text-2);padding-left:13px;position:relative;line-height:1.55}
.role li::before{content:"";position:absolute;left:0;top:7px;width:4px;height:4px;border-radius:50%;background:var(--brand);opacity:.7}

/* ================= 助手页 ================= */
#page-assistant.active{display:flex;gap:0;height:calc(100% + 54px);padding:0;margin:-22px -26px -32px}
.chat-col{flex:1;display:flex;flex-direction:column;min-width:0;border-right:1px solid var(--line)}
.chat-col svg{flex:0 0 auto}

.mode-bar{
  display:flex;align-items:center;gap:7px;padding:12px 20px;border-bottom:1px solid var(--line);
  background:var(--panel-glass);flex-wrap:wrap;
}
.mode-bar .lbl{font-size:11px;color:var(--text-3);margin-right:3px}
.mode{
  display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:8px;
  font-size:12px;color:var(--text-2);border:1px solid var(--line);cursor:pointer;transition:.15s;
  background:transparent;font-family:var(--font);
}
.mode svg{width:13px;height:13px}
.mode:hover{color:var(--text);border-color:var(--line-strong)}
.mode.active{background:var(--brand-soft);color:var(--brand);border-color:rgba(47,214,165,.32);font-weight:600}

.chat-scroll{flex:1;overflow-y:auto;padding:22px 20px}
.chat-inner{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:18px}

.welcome{text-align:center;padding:40px 0 26px}
.welcome .glow{
  width:62px;height:62px;border-radius:18px;margin:0 auto 16px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-2));
  box-shadow:0 12px 34px rgba(47,214,165,.3);
}
.welcome .glow svg{width:30px;height:30px}
.welcome h2{font-size:19px;font-weight:700;letter-spacing:-.2px}
.welcome p{font-size:12.5px;color:var(--text-3);margin-top:6px}
.q-chips{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:22px;text-align:left}
.q-chip{
  border:1px solid var(--line);border-radius:11px;padding:11px 13px;cursor:pointer;
  background:var(--panel);transition:.16s;display:flex;gap:9px;align-items:flex-start;
}
.q-chip:hover{border-color:rgba(47,214,165,.34);background:var(--panel-2);transform:translateY(-1px)}
.q-chip .ic{width:22px;height:22px;border-radius:6px;flex:0 0 22px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand)}
.q-chip .ic svg{width:12px;height:12px}
.q-chip .tx{font-size:12px;color:var(--text-2);line-height:1.5}
.q-chip .tx b{display:block;color:var(--text);font-size:12.5px;font-weight:600;margin-bottom:1px}

.msg{display:flex;gap:11px;align-items:flex-start;animation:fade .3s ease}
.msg .av{
  width:30px;height:30px;border-radius:9px;flex:0 0 30px;display:grid;place-items:center;
  font-size:11px;font-weight:700;
}
.msg.user{flex-direction:row-reverse}
.msg.user .av{background:var(--panel-2);border:1px solid var(--line);color:var(--text-2)}
.msg.user .bubble{
  background:var(--brand-soft);border:1px solid rgba(47,214,165,.22);
  border-radius:13px 13px 4px 13px;
}
.msg.ai .av{background:linear-gradient(140deg,var(--brand),var(--brand-2));color:#04140F}
.msg.ai .av svg{width:16px;height:16px}
.msg .body{max-width:88%;min-width:0}
.bubble{
  background:var(--panel);border:1px solid var(--line);border-radius:13px 13px 13px 4px;
  padding:13px 15px;font-size:13px;line-height:1.78;color:var(--text-2);
}
.bubble p{margin-bottom:8px}
.bubble p:last-child{margin-bottom:0}
.bubble b,.bubble strong{color:var(--text);font-weight:650}
.bubble ol,.bubble ul{margin:6px 0 8px 18px}
.bubble li{margin-bottom:5px}
.bubble li::marker{color:var(--brand)}
.bubble .hl{color:var(--brand);font-weight:600}
.bubble code{font-family:var(--mono);font-size:11.5px;background:var(--panel-glass);padding:1px 5px;border-radius:4px;color:var(--gold)}
.msg-meta{display:flex;gap:7px;align-items:center;margin-top:8px;flex-wrap:wrap;font-size:10.5px;color:var(--text-3)}
.msg-meta .badge{border:1px solid var(--line);padding:1px 7px;border-radius:5px;background:var(--panel-glass)}

/* 来源卡片 */
.sources{margin-top:9px;display:flex;flex-direction:column;gap:6px}
.src{
  display:flex;gap:9px;align-items:center;padding:8px 11px;border-radius:9px;
  border:1px solid var(--line);background:var(--panel-glass);cursor:pointer;transition:.15s;
}
.src:hover{border-color:rgba(47,214,165,.3)}
.src .lib{
  font-size:9.5px;font-weight:700;letter-spacing:.4px;padding:2px 7px;border-radius:5px;
  background:var(--brand-soft);color:var(--brand);border:1px solid rgba(47,214,165,.22);flex:0 0 auto;
}
.src .nm{font-size:11.5px;color:var(--text-2);line-height:1.45;min-width:0}
.src .nm i{font-style:normal;color:var(--text-3);font-size:10.5px;display:block}
.src .go{margin-left:auto;color:var(--text-3);flex:0 0 auto}
.src .go svg{width:12px;height:12px}

/* 风险条 */
.risk{
  margin-top:9px;display:flex;gap:9px;padding:10px 12px;border-radius:9px;font-size:11.5px;line-height:1.6;
  border:1px solid transparent;
}
.risk .ic{flex:0 0 14px;margin-top:1px}
.risk .ic svg{width:14px;height:14px}
.risk.high{background:var(--danger-soft);border-color:rgba(255,107,90,.28);color:var(--danger)}
.risk.mid{background:var(--warn-soft);border-color:rgba(242,179,61,.26);color:var(--warn)}
.risk.low{background:var(--info-soft);border-color:rgba(90,169,255,.24);color:var(--info)}
.risk b{color:inherit;font-weight:700}

/* 测验卡 */
.quiz{margin-top:10px;border:1px solid var(--line);border-radius:11px;overflow:hidden;background:var(--panel-glass)}
.quiz .q-head{padding:10px 13px;border-bottom:1px solid var(--line);font-size:11px;color:var(--gold);font-weight:600;letter-spacing:.3px;display:flex;gap:7px;align-items:center}
.quiz .q-body{padding:12px 13px;font-size:12.5px;color:var(--text-2)}
.quiz .opts{padding:0 13px 12px;display:flex;flex-direction:column;gap:7px}
.opt{
  display:flex;gap:9px;align-items:flex-start;padding:9px 11px;border-radius:8px;
  border:1px solid var(--line);font-size:12px;color:var(--text-2);cursor:pointer;transition:.15s;background:transparent;
  text-align:left;font-family:var(--font);width:100%;
}
.opt:hover{border-color:rgba(47,214,165,.3);background:var(--panel-2)}
.opt .k{font-family:var(--mono);font-weight:700;color:var(--text-3);flex:0 0 14px}
.opt.right{border-color:rgba(47,214,165,.5);background:var(--brand-soft);color:var(--brand)}
.opt.right .k{color:var(--brand)}
.opt.wrong{border-color:rgba(255,107,90,.45);background:var(--danger-soft);color:var(--danger)}
.opt.wrong .k{color:var(--danger)}
.quiz .exp{padding:0 13px 13px;font-size:11.5px;color:var(--text-2);line-height:1.7;display:none}
.quiz .exp.show{display:block}
.quiz .exp b{color:var(--brand)}

/* 向导步骤 */
.steps{margin-top:10px;display:flex;flex-direction:column;gap:0}
.step{display:flex;gap:11px;position:relative;padding-bottom:14px}
.step:last-child{padding-bottom:0}
.step .dot{
  flex:0 0 20px;height:20px;border-radius:50%;display:grid;place-items:center;
  font-size:10px;font-family:var(--mono);font-weight:700;
  border:1px solid var(--line-strong);color:var(--text-3);background:var(--panel);z-index:1;
}
.step.done .dot{background:var(--brand);border-color:var(--brand);color:#04140F}
.step.now .dot{border-color:var(--brand);color:var(--brand);box-shadow:0 0 0 4px var(--brand-soft)}
.step:not(:last-child)::before{
  content:"";position:absolute;left:9.5px;top:20px;bottom:0;width:1px;background:var(--line);
}
.step.done:not(:last-child)::before{background:rgba(47,214,165,.4)}
.step .sc{font-size:12px;line-height:1.6;padding-top:1px}
.step .sc b{display:block;color:var(--text);font-size:12.5px;font-weight:600}
.step .sc span{color:var(--text-3);font-size:11.5px}
.wizard-act{margin-top:11px;display:flex;gap:8px}

/* 输入区 */
.composer{padding:12px 20px 18px;border-top:1px solid var(--line);background:var(--bg-2)}
.composer-inner{max-width:760px;margin:0 auto}
.attach-preview{display:none;gap:9px;margin-bottom:9px}
.attach-preview.show{display:flex}
.thumb{position:relative;width:64px;height:64px;border-radius:9px;overflow:hidden;border:1px solid var(--line)}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb .x{position:absolute;top:2px;right:2px;width:16px;height:16px;border-radius:50%;background:rgba(0,0,0,.6);
  color:#fff;display:grid;place-items:center;font-size:10px;cursor:pointer;line-height:1}
.input-box{
  display:flex;align-items:flex-end;gap:9px;padding:9px 11px;border-radius:13px;
  border:1px solid var(--line);background:var(--panel);transition:.16s;
}
.input-box:focus-within{border-color:rgba(47,214,165,.45);box-shadow:0 0 0 3px var(--brand-soft)}
.input-box textarea{
  flex:1;background:transparent;border:0;outline:0;resize:none;color:var(--text);
  font-family:var(--font);font-size:13px;line-height:1.7;max-height:120px;min-height:24px;padding:3px 0;
}
.input-box textarea::placeholder{color:var(--text-3)}
.tool-btn{
  width:30px;height:30px;border-radius:8px;display:grid;place-items:center;cursor:pointer;
  border:1px solid transparent;background:transparent;color:var(--text-3);transition:.15s;flex:0 0 30px;
}
.tool-btn:hover{color:var(--brand);background:var(--panel-glass)}
.tool-btn svg{width:16px;height:16px}
.send-btn{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;cursor:pointer;border:0;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#04140F;flex:0 0 32px;transition:.15s;
}
.send-btn:disabled{opacity:.35;cursor:not-allowed}
.send-btn:hover:not(:disabled){filter:brightness(1.1)}
.send-btn svg{width:15px;height:15px}
.composer .hint{font-size:10.5px;color:var(--text-3);margin-top:7px;text-align:center}

/* 右栏上下文 */
.ctx-col{
  width:296px;flex:0 0 296px;overflow-y:auto;padding:18px 16px;background:var(--panel-glass);
  display:flex;flex-direction:column;gap:14px;
}
.ctx-block{border:1px solid var(--line);border-radius:12px;padding:13px;background:var(--panel)}
.ctx-block h5{font-size:11px;letter-spacing:.8px;color:var(--text-3);font-weight:600;margin-bottom:9px;
  display:flex;align-items:center;gap:6px}
.ctx-block h5 svg{width:12px;height:12px}
.ctx-mode-name{font-size:13px;font-weight:650;color:var(--brand);margin-bottom:5px}
.ctx-mode-desc{font-size:11.5px;color:var(--text-3);line-height:1.65}
.ctx-list{display:flex;flex-direction:column;gap:7px}
.ctx-item{
  font-size:11.5px;color:var(--text-2);padding:8px 10px;border-radius:8px;
  background:var(--panel-glass);border:1px solid var(--line);display:flex;gap:8px;align-items:center;
}
.ctx-item .nm{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ctx-item .k{font-size:9.5px;color:var(--brand);flex:0 0 auto;font-weight:700}
.ctx-empty{font-size:11.5px;color:var(--text-3);text-align:center;padding:12px 0}
.risk-meter{display:flex;gap:4px;margin-top:9px}
.risk-meter i{height:5px;flex:1;border-radius:3px;background:var(--line)}
.risk-meter i.on{background:var(--brand)}
.risk-meter i.on.mid{background:var(--warn)}
.risk-meter i.on.high{background:var(--danger)}

/* ================= 知识库页 ================= */
.kb{
  border:1px solid var(--line);border-radius:var(--r);padding:15px;background:var(--panel);
  transition:.2s;position:relative;overflow:hidden;
}
.kb:hover{border-color:rgba(47,214,165,.3)}
.kb .top{display:flex;align-items:flex-start;gap:10px;margin-bottom:9px}
.kb .ic{
  width:32px;height:32px;border-radius:9px;flex:0 0 32px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);border:1px solid rgba(47,214,165,.2);
}
.kb .ic svg{width:15px;height:15px}
.kb h4{font-size:12.5px;font-weight:650;line-height:1.4}
.kb .cnt{font-size:10.5px;color:var(--text-3);margin-top:2px}
.kb .bar{height:4px;border-radius:3px;background:var(--line);overflow:hidden;margin:10px 0 7px}
.kb .bar i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,var(--brand-2),var(--brand))}
.kb .stat{display:flex;justify-content:space-between;font-size:10.5px;color:var(--text-3)}
.kb .stat .st{color:var(--brand)}

/* 流水线 */
.flow{display:flex;align-items:stretch;gap:0;flex-wrap:wrap}
.flow .st{
  flex:1;min-width:120px;padding:14px 12px;border:1px solid var(--line);border-right:0;
  background:var(--panel);position:relative;
}
.flow .st:first-child{border-radius:11px 0 0 11px}
.flow .st:last-child{border-right:1px solid var(--line);border-radius:0 11px 11px 0}
.flow .st .n{font-family:var(--mono);font-size:10px;color:var(--brand);margin-bottom:5px}
.flow .st h5{font-size:12px;font-weight:650;margin-bottom:3px}
.flow .st p{font-size:10.5px;color:var(--text-3);line-height:1.5}

/* 优先级表 */
.pri{display:flex;flex-direction:column;gap:8px}
.pri .r{display:flex;gap:10px;align-items:center;font-size:11.5px}
.pri .lv{
  flex:0 0 52px;text-align:center;font-size:10px;font-weight:700;padding:2px 0;border-radius:5px;
}
.pri .lv.p1{background:var(--danger-soft);color:var(--danger);border:1px solid rgba(255,107,90,.24)}
.pri .lv.p2{background:var(--brand-soft);color:var(--brand);border:1px solid rgba(47,214,165,.24)}
.pri .lv.p3{background:var(--panel-glass);color:var(--text-3);border:1px solid var(--line)}
.pri .d{color:var(--text-2);line-height:1.5}

/* ================= 后台页 ================= */
.kpi{border:1px solid var(--line);border-radius:12px;padding:14px;background:var(--panel);position:relative;overflow:hidden}
.kpi .lb{font-size:10.5px;color:var(--text-3);letter-spacing:.4px}
.kpi .vl{font-size:25px;font-weight:750;font-family:var(--mono);letter-spacing:-1px;margin-top:4px;line-height:1.1}
.kpi .vl span{font-size:11px;font-family:var(--font);color:var(--text-3);font-weight:400;margin-left:3px;letter-spacing:0}
.kpi .dt{font-size:10.5px;color:var(--text-3);margin-top:5px}
.kpi .dt .up{color:var(--brand)}
.kpi .dt .dn{color:var(--danger)}
.kpi .spark{position:absolute;right:10px;bottom:10px;opacity:.5}

/* 条形图 */
.bars{display:flex;flex-direction:column;gap:10px}
.bar-row{display:flex;align-items:center;gap:10px;font-size:11.5px}
.bar-row .lb{flex:0 0 176px;color:var(--text-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bar-row .tk{flex:1;height:16px;background:var(--panel-glass);border-radius:5px;overflow:hidden;position:relative}
.bar-row .tk i{
  display:block;height:100%;border-radius:5px;
  background:linear-gradient(90deg,var(--brand-2),var(--brand));
  animation:grow .7s cubic-bezier(.2,.8,.2,1) both;
}
.bar-row:nth-child(1) .tk i{background:linear-gradient(90deg,#0E8C68,#2FD6A5)}
.bar-row:nth-child(2) .tk i{opacity:.92}
.bar-row:nth-child(3) .tk i{opacity:.85}
.bar-row .vl{flex:0 0 42px;text-align:right;font-family:var(--mono);font-size:11px;color:var(--text-3)}
@keyframes grow{from{width:0 !important}to{}}

/* 表格 */
table.tb{width:100%;border-collapse:collapse;font-size:11.5px}
table.tb th{
  text-align:left;font-weight:600;color:var(--text-3);font-size:10.5px;letter-spacing:.5px;
  padding:7px 10px;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.tb td{padding:8px 10px;border-bottom:1px solid var(--line);color:var(--text-2);vertical-align:middle}
table.tb tr:last-child td{border-bottom:0}
table.tb tr:hover td{background:var(--panel-glass)}
table.tb td.q{color:var(--text);max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tag-s{font-size:10px;padding:1px 7px;border-radius:5px;border:1px solid var(--line);white-space:nowrap;display:inline-block}
.tag-s.g{color:var(--brand);background:var(--brand-soft);border-color:rgba(47,214,165,.24)}
.tag-s.r{color:var(--danger);background:var(--danger-soft);border-color:rgba(255,107,90,.24)}
.tag-s.y{color:var(--warn);background:var(--warn-soft);border-color:rgba(242,179,61,.24)}
.tag-s.b{color:var(--info);background:var(--info-soft);border-color:rgba(90,169,255,.24)}

/* 告警 */
.alert{
  display:flex;gap:10px;padding:11px 12px;border-radius:10px;
  border:1px solid rgba(255,107,90,.26);background:var(--danger-soft);margin-bottom:8px;
}
.alert .ic{flex:0 0 16px;color:var(--danger);margin-top:1px}
.alert .ic svg{width:15px;height:15px}
.alert .tx{font-size:11.5px;color:var(--text-2);line-height:1.6}
.alert .tx b{color:var(--danger);display:block;font-size:12px;margin-bottom:1px}
.alert .tx i{display:block;font-style:normal;color:var(--text-3);font-size:10.5px;margin-top:3px}

/* 错误认知 */
.mis{padding:10px 0;border-bottom:1px dashed var(--line)}
.mis:last-child{border-bottom:0;padding-bottom:0}
.mis .w{font-size:11.5px;color:var(--danger);display:flex;gap:6px}
.mis .w::before{content:"✕";flex:0 0 auto;font-size:10px;margin-top:1px}
.mis .r{font-size:11.5px;color:var(--brand);margin-top:4px;display:flex;gap:6px}
.mis .r::before{content:"✓";flex:0 0 auto;font-size:10px;margin-top:1px}

/* ================= 架构页 ================= */
.layer{
  display:grid;grid-template-columns:112px 1fr;gap:0;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:9px;background:var(--panel);
}
.layer .ln{
  padding:14px 12px;border-right:1px solid var(--line);
  background:var(--panel-glass);display:flex;flex-direction:column;justify-content:center;
}
.layer .ln b{font-size:12px;font-weight:650}
.layer .ln span{font-size:9.5px;color:var(--text-3);letter-spacing:.6px;margin-top:2px;font-family:var(--mono)}
.layer .boxes{display:flex;gap:8px;padding:12px;flex-wrap:wrap}
.layer .bx{
  flex:1;min-width:118px;padding:10px 12px;border-radius:8px;
  border:1px solid var(--line);background:var(--panel-glass);
}
.layer .bx h6{font-size:11.5px;font-weight:600;color:var(--text);margin-bottom:2px}
.layer .bx p{font-size:10px;color:var(--text-3);line-height:1.45}
.layer.hi{border-color:rgba(47,214,165,.3)}
.layer.hi .ln{background:var(--brand-soft)}
.layer.hi .ln b{color:var(--brand)}
.layer.hi .bx{border-color:rgba(47,214,165,.2);background:rgba(47,214,165,.05)}

/* ================= 平台详情 ================= */
.plat-detail{border:1px solid var(--line);border-radius:var(--r);background:var(--panel);overflow:hidden}
.plat-detail .hd{padding:14px 16px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px;background:var(--panel-glass)}
.plat-detail .hd .no{
  width:26px;height:26px;border-radius:8px;display:grid;place-items:center;font-family:var(--mono);
  font-size:11px;font-weight:700;background:var(--brand-soft);color:var(--brand);border:1px solid rgba(47,214,165,.24);
}
.plat-detail .hd h4{font-size:13px;font-weight:650}
.plat-detail .hd .loc{margin-left:auto;font-size:10.5px;color:var(--text-3)}
.plat-detail .bd{padding:13px 16px}
.plat-detail .bd p{font-size:11.5px;color:var(--text-2);margin-bottom:10px;line-height:1.65}
.svc{display:flex;flex-wrap:wrap;gap:5px}
.svc span{font-size:10.5px;padding:2px 8px;border-radius:5px;background:var(--panel-glass);border:1px solid var(--line);color:var(--text-2)}

/* ================= 模型接入 ================= */
.model-grid{display:grid;grid-template-columns:1fr 340px;gap:16px;align-items:start}
.form-row{margin-bottom:13px}
.form-row label{display:block;font-size:11.5px;color:var(--text-2);margin-bottom:5px;font-weight:600}
.form-row label .req{color:var(--danger);margin-left:2px}
.form-row .desc{font-size:10.5px;color:var(--text-3);margin-top:4px;line-height:1.5}
.inp{
  width:100%;padding:9px 11px;border-radius:9px;border:1px solid var(--line);
  background:var(--bg-2);color:var(--text);font-family:var(--mono);font-size:12px;outline:0;transition:.15s;
}
.inp:focus{border-color:rgba(47,214,165,.45);box-shadow:0 0 0 3px var(--brand-soft)}
.inp::placeholder{color:var(--text-3);font-family:var(--font)}
select.inp{font-family:var(--font);cursor:pointer}
.form-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
textarea.inp{font-family:var(--font);resize:vertical;min-height:118px;line-height:1.6;font-size:11.5px}

.presets{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:16px}
.preset{
  border:1px solid var(--line);border-radius:9px;padding:9px 10px;cursor:pointer;transition:.15s;
  background:var(--panel-glass);text-align:left;font-family:var(--font);
}
.preset:hover{border-color:rgba(47,214,165,.3)}
.preset.on{border-color:rgba(47,214,165,.5);background:var(--brand-soft)}
.preset b{display:block;font-size:11.5px;color:var(--text);font-weight:600}
.preset span{font-size:9.5px;color:var(--text-3)}

.test-out{
  margin-top:12px;padding:11px 12px;border-radius:9px;font-size:11.5px;line-height:1.65;
  border:1px solid var(--line);background:var(--panel-glass);color:var(--text-2);display:none;
}
.test-out.show{display:block}
.test-out.ok{border-color:rgba(47,214,165,.3);background:var(--brand-soft);color:var(--brand)}
.test-out.err{border-color:rgba(255,107,90,.3);background:var(--danger-soft);color:var(--danger)}
.test-out .mono{font-family:var(--mono);font-size:10.5px;display:block;margin-top:4px;opacity:.8;word-break:break-all}

.status-line{display:flex;align-items:center;gap:8px;font-size:11.5px;padding:10px 12px;border-radius:9px;
  border:1px solid var(--line);background:var(--panel-glass);margin-bottom:14px}
.status-line .d{width:7px;height:7px;border-radius:50%;background:var(--text-3);flex:0 0 7px}
.status-line.on .d{background:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.status-line.on{color:var(--brand)}
.status-line b{font-weight:600}

/* 提示框 */
.note{
  display:flex;gap:9px;padding:11px 13px;border-radius:10px;font-size:11.5px;line-height:1.65;
  border:1px solid rgba(90,169,255,.24);background:var(--info-soft);color:var(--info);
}
.note .ic{flex:0 0 14px;margin-top:1px}
.note .ic svg{width:14px;height:14px}

/* 开关 */
.switch{display:inline-flex;align-items:center;gap:8px;cursor:pointer;font-size:11.5px;color:var(--text-2)}
.switch .tg{
  width:34px;height:19px;border-radius:10px;background:var(--line-strong);position:relative;transition:.18s;flex:0 0 34px;
}
.switch .tg::after{
  content:"";position:absolute;left:2px;top:2px;width:15px;height:15px;border-radius:50%;
  background:#fff;transition:.18s;
}
.switch.on .tg{background:var(--brand)}
.switch.on .tg::after{left:17px}

/* 打字光标 */
.cursor{display:inline-block;width:6px;height:13px;background:var(--brand);vertical-align:-2px;margin-left:2px;
  animation:blink .9s steps(2) infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
.typing{display:flex;gap:4px;padding:4px 0}
.typing i{width:5px;height:5px;border-radius:50%;background:var(--brand);opacity:.4;animation:bounce 1.1s infinite}
.typing i:nth-child(2){animation-delay:.15s}
.typing i:nth-child(3){animation-delay:.3s}
@keyframes bounce{0%,100%{transform:translateY(0);opacity:.35}50%{transform:translateY(-4px);opacity:1}}

/* 裸露内联 SVG 兜底尺寸 */
.quiz .q-head svg{width:12px;height:12px}
.wiz-done{font-size:11.5px;color:var(--brand);display:flex;gap:7px;align-items:center;padding:8px 0}
.wiz-done svg{width:13px;height:13px}

/* 响应式 */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s !important;animation-delay:0s !important;transition-duration:.001s !important}
}
@media(max-width:1300px){ .ctx-col{display:none} }
@media(max-width:1100px){
  .g6{grid-template-columns:repeat(3,1fr)}
  .g4{grid-template-columns:repeat(2,1fr)}
  .model-grid{grid-template-columns:1fr}
  .presets{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:820px){
  .app{grid-template-columns:64px 1fr}
  .brand-name,.brand-sub,.nav-label,.nav-item span,.nav-item .idx,.side-foot{display:none}
  .nav-item{justify-content:center;padding:11px}
  .g3,.g2{grid-template-columns:1fr}
  .hero-actions{position:static;margin-top:18px}
  .hero{padding:22px}
  .hero h1{font-size:24px}
}

/* ================= 学生咨询终端与教师工作台原型 ================= */
.nav-item:focus-visible,.role-switch:focus-visible,button:focus-visible,textarea:focus-visible,input:focus-visible,select:focus-visible{
  outline:3px solid rgba(14,140,104,.32);outline-offset:2px
}
.student-context-hidden{display:none!important}
.role-switch{
  min-height:36px;padding:0 14px;border:1px solid rgba(14,140,104,.2);border-radius:9px;
  background:var(--brand-soft);color:var(--brand-2);font:600 12px var(--font);cursor:pointer;transition:.16s
}
.role-switch:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.student-terminal{max-width:1500px;margin:0 auto}
.student-heading{margin:0 0 18px}
.student-eyebrow{display:flex;align-items:center;gap:9px;color:var(--text-2);font-size:12px;font-weight:650;letter-spacing:.2px}
.prototype-label{display:inline-flex;align-items:center;border:1px solid #dce8e3;border-radius:999px;padding:3px 8px;color:#60766f;background:#f6faf8;font-size:10px;font-weight:600;letter-spacing:.1px;white-space:nowrap}
.status-dot{width:8px;height:8px;display:inline-block;border-radius:50%;background:#2caa80;box-shadow:0 0 0 3px rgba(44,170,128,.12)}
.student-title-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-top:8px}
.student-title-row h1{font-size:clamp(27px,3vw,38px);line-height:1.2;letter-spacing:-1.1px;color:#16362e;font-weight:750}
.student-title-row h1 em{font-style:normal;color:#0d9270}
.student-title-row p{margin-top:7px;color:#6c8079;font-size:14px}
.terminal-status{display:flex;align-items:center;gap:10px;padding:10px 13px;border:1px solid #e1ebe6;border-radius:12px;background:rgba(255,255,255,.72);white-space:nowrap}
.terminal-mark{width:34px;height:34px;display:grid;place-items:center;background:#e5f5ee;color:#0a815e;border-radius:10px;font-weight:750}
.terminal-status b,.terminal-status small{display:block}.terminal-status b{font-size:11.5px;color:#25463c}.terminal-status small{font-size:10px;color:#8a9b95;margin-top:2px}
.student-layout{display:grid;grid-template-columns:minmax(0,1fr) 304px;gap:17px;align-items:start}
.student-primary{min-width:0;display:flex;flex-direction:column;gap:13px}
.ask-card,.mode-panel,.answer-panel,.course-section,.expert-card,.expert-handoff-card,.teacher-panel{
  background:#fff;border:1px solid #e2ebe7;border-radius:16px;box-shadow:0 8px 28px rgba(25,67,53,.045)
}
.ask-card{padding:20px 22px 15px;border-top:3px solid #138765}
.ask-card-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:13px}
.ask-card-title h2{font-size:20px;color:#193a31;letter-spacing:-.35px}.ask-card-title p{font-size:12px;color:#81918b;margin-top:2px}
.grounded-pill{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:999px;background:#f0f8f4;color:#55776a;font-size:10.5px;white-space:nowrap}
.grounded-pill .status-dot{width:6px;height:6px;box-shadow:none}
.student-composer{border:1.5px solid #d8e5df;border-radius:13px;padding:8px;background:#fbfdfc;transition:.16s}
.student-composer:focus-within{border-color:#4cb191;box-shadow:0 0 0 4px rgba(14,140,104,.08)}
.student-input-box{display:flex;align-items:center;gap:10px;min-height:64px}
.student-input-box .tool-btn{width:42px;height:42px;flex:0 0 42px;border-radius:10px;color:#53766a;background:#eff6f2}
.student-input-box .tool-btn:hover{background:#e3f3eb;color:#0d805d}
.student-input-box textarea{min-height:58px;max-height:110px;padding:9px 4px;line-height:1.45;font:500 15px var(--font);color:#193a31}
.student-input-box textarea::placeholder{color:#94a39d}
.student-input-box .send-btn{width:auto;min-width:120px;height:46px;border-radius:10px;padding:0 15px;display:flex;align-items:center;justify-content:center;gap:9px;background:#0d8764;color:#fff;font-size:13px;font-weight:650;box-shadow:0 5px 12px rgba(13,135,100,.15)}
.student-input-box .send-btn:disabled{background:#4f826d;color:#fff;box-shadow:none;cursor:not-allowed}
.student-input-box .send-btn svg{width:17px;height:17px}
.input-assurance{display:flex;justify-content:space-between;gap:12px;padding:6px 4px 0;color:#879891;font-size:10px}
.quick-question-list{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin-top:12px}
.quick-question-list>span{font-size:10.5px;color:#81918b;margin-right:2px}
.quick-question-list button{min-height:31px;border:1px solid #e2ebe6;border-radius:999px;padding:0 11px;background:#f8fbf9;color:#48685c;font:500 11px var(--font);cursor:pointer;transition:.15s}
.quick-question-list button:hover{border-color:#88cbb1;background:#eef8f3;color:#0d805d}
.mode-panel{padding:14px 16px}
.mode-panel-heading{display:flex;align-items:baseline;gap:8px;margin-bottom:10px}.mode-panel-heading b{font-size:12px;color:#294a3e}.mode-panel-heading span{font-size:10px;color:#94a29d}
.mode-panel .mode-bar{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;padding:0;border:0;background:transparent;overflow:visible}
.mode-panel .mode{min-height:58px;justify-content:flex-start;gap:9px;padding:8px 10px;border:1px solid #e4ece8;border-radius:11px;background:#fbfdfc;color:#4c6c60;white-space:normal}
.mode-panel .mode:hover{border-color:#a7d6c3;background:#f5fbf8}
.mode-panel .mode.active{border-color:#86c9ae;background:#eef8f3;color:#0b805e}
.mode-panel .mode .mode-icon{width:30px;height:30px;flex:0 0 30px;display:grid;place-items:center;border-radius:9px;background:#e7f3ed;font-size:11px;font-weight:750}
.mode-panel .mode b,.mode-panel .mode small{display:block;text-align:left}.mode-panel .mode b{font-size:11px}.mode-panel .mode small{font-size:9px;color:#84958e;margin-top:2px;line-height:1.25}
.answer-panel{overflow:hidden}
.answer-panel-head{height:53px;display:flex;align-items:center;gap:9px;padding:0 16px;border-bottom:1px solid #edf1ef;background:#fcfdfd}
.assistant-avatar{width:29px;height:29px;display:grid;place-items:center;border-radius:9px;background:#e5f5ed;color:#0a825e;font-size:10px;font-weight:800}
.answer-panel-head b,.answer-panel-head small{display:block}.answer-panel-head b{font-size:11.5px;color:#2b4c40}.answer-panel-head small{font-size:9.5px;color:#8a9993;margin-top:1px}
.answer-demo-tag{margin-left:auto;font-size:9px;color:#929e99;border:1px solid #e7ece9;border-radius:999px;padding:4px 8px}
.answer-panel .chat-scroll{max-height:270px;min-height:145px;overflow:auto;padding:12px 16px}
.answer-panel .chat-inner{max-width:none;gap:11px}
.answer-panel .welcome{display:flex;align-items:center;gap:11px;padding:13px 0;text-align:left}
.welcome-avatar{width:35px;height:35px;flex:0 0 35px;display:grid;place-items:center;border-radius:11px;background:#e5f5ed;color:#0a825e;font-size:11px;font-weight:800}
.answer-panel .welcome h2{font-size:12px;color:#34554a}.answer-panel .welcome p{font-size:10px;margin-top:2px;color:#82928c}
.welcome-evidence{margin-left:auto;padding:5px 8px;border:1px solid #e4eee8;border-radius:8px;color:#698176;background:#f8fbf9;font-size:9px;white-space:nowrap}
.answer-panel .msg .av{background:#e5f5ed;color:#0a825e}.answer-panel .msg.user .av{background:#edf1ef;color:#63776e}
.answer-panel .msg .bubble{border-color:#e4ece7;background:#fbfdfc;color:#334f45;font-size:12px}.answer-panel .msg.user .bubble{background:#eef8f3}
.answer-panel .msg .sources .src{background:#f6faf8;border-color:#e4ece7}
.course-section{padding:16px}
.course-section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.course-section-head h2{font-size:14px;color:#24463b}.course-section-head p{font-size:10.5px;color:#899992;margin-top:2px}
.course-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.course-card{border:1px solid #e8eeeb;border-radius:12px;overflow:hidden;background:#fff;min-width:0}
.course-thumb{height:76px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;background:linear-gradient(125deg,#c7e7d9,#ebf4ed)}
.course-thumb::before,.course-thumb::after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(12,94,68,.12);width:130px;height:130px;left:12%;top:-70px}
.course-thumb::after{width:100px;height:100px;left:auto;right:8%;top:22px}
.course-thumb-safety{background:linear-gradient(125deg,#d8efe3,#eef5e7)}.course-thumb-device{background:linear-gradient(125deg,#d8e9ed,#e9f2f3)}.course-thumb-course{background:linear-gradient(125deg,#ece2d2,#f5f0e5)}
.play-mark{z-index:1;width:31px;height:31px;display:grid;place-items:center;border-radius:50%;background:rgba(255,255,255,.85);color:#147755;font-size:11px;padding-left:2px;box-shadow:0 3px 10px rgba(31,69,54,.12)}
.course-kind{position:absolute;z-index:1;left:9px;top:8px;padding:3px 7px;border-radius:999px;background:rgba(255,255,255,.8);color:#456c5b;font-size:8.5px}
.course-card-body{padding:10px 11px 11px}.course-card-body>b{display:block;color:#294a3e;font-size:10.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.course-card-body p{font-size:9px;color:#899891;margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.course-card-body button{display:flex;align-items:center;justify-content:space-between;width:100%;margin-top:8px;padding:0;border:0;background:transparent;color:#0c8763;font:650 10px var(--font);cursor:pointer}
.course-card-body button:hover{color:#075e45}
.expert-column{display:flex;flex-direction:column;gap:12px}
.expert-card{padding:19px;position:relative;overflow:hidden;border-top:3px solid #df9a63}
.expert-card::after{content:"";position:absolute;right:-40px;top:-48px;width:140px;height:140px;border-radius:50%;background:radial-gradient(circle,rgba(239,185,139,.22),transparent 70%);pointer-events:none}
.expert-card-top{display:flex;align-items:center;justify-content:space-between;position:relative;z-index:1}
.expert-symbol{width:38px;height:38px;display:grid;place-items:center;border-radius:12px;background:#fff2e8;color:#bd7041;font-size:24px;font-weight:400}
.expert-kicker{margin-top:18px;font-size:10px;font-weight:700;color:#bd7041;letter-spacing:.8px}
.expert-card h2{margin-top:3px;font-size:20px;color:#28483c;letter-spacing:-.4px}.expert-copy{margin-top:7px;font-size:11px;color:#70827a;line-height:1.7}
.expert-status{display:flex;align-items:center;gap:9px;margin-top:14px;padding:10px;border:1px solid #edf0ed;border-radius:10px;background:#fbfcfb}
.status-dot-muted{background:#a5b0ab;box-shadow:0 0 0 3px rgba(165,176,171,.13)}
.expert-status b,.expert-status small{display:block}.expert-status b{font-size:10.5px;color:#5b7167}.expert-status small{font-size:9px;color:#98a39e;margin-top:2px}
.call-teacher-button{width:100%;min-height:49px;display:flex;align-items:center;justify-content:space-between;margin-top:11px;padding:0 15px;border:0;border-radius:11px;background:#bd7041;color:#fff;font:700 13px var(--font);cursor:pointer;box-shadow:0 6px 15px rgba(189,112,65,.2);transition:.15s}
.call-teacher-button:hover{background:#a95e32;transform:translateY(-1px)}.call-teacher-button span:last-child{font-size:17px}
.consult-steps{display:flex;align-items:center;justify-content:space-between;gap:5px;margin-top:15px;color:#a5afaa}.consult-steps>div{display:flex;align-items:center;gap:5px}.consult-steps i{width:19px;height:19px;display:grid;place-items:center;border-radius:50%;background:#f5eee8;color:#ad714c;font-size:9px;font-style:normal;font-weight:700}.consult-steps span{font-size:9px;color:#788980}
.expert-safety-note{margin-top:15px;padding:10px;border-radius:10px;background:#fff8f2;border:1px solid #f5e8dc}.expert-safety-note b{display:block;color:#a85837;font-size:10px}.expert-safety-note span{display:block;margin-top:3px;color:#8b7468;font-size:9px;line-height:1.55}
.expert-handoff-card{display:flex;align-items:flex-start;gap:10px;padding:13px 14px;background:#f8fbf9}
.handoff-icon{width:27px;height:27px;flex:0 0 27px;display:grid;place-items:center;border-radius:9px;background:#e9f2ed;color:#50806b;font-weight:700;font-size:12px}
.expert-handoff-card b{font-size:10px;color:#476558}.expert-handoff-card p{margin-top:3px;font-size:9px;line-height:1.55;color:#899891}

/* 教师 / 管理员工作台 */
.teacher-workbench{max-width:1500px;margin:0 auto}
.teacher-welcome{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:16px}
.teacher-mark{width:21px;height:21px;display:grid;place-items:center;border-radius:7px;background:#e7f0ed;color:#466d5d;font-size:9px;font-weight:800}
.teacher-welcome h1{margin-top:8px;font-size:29px;line-height:1.2;letter-spacing:-.7px;color:#18382f}.teacher-welcome p{margin-top:5px;color:#71847c;font-size:12px}
.teacher-primary-action,.teacher-secondary-action{min-height:38px;padding:0 13px;border:1px solid #dfe9e4;border-radius:9px;background:#fff;color:#376353;font:600 11px var(--font);cursor:pointer}
.teacher-primary-action:hover,.teacher-secondary-action:hover{border-color:#9dcdb7;background:#f4faf7}
.teacher-stat-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:12px}
.teacher-stat{min-height:84px;padding:13px 14px;border:1px solid #e2ebe6;border-radius:13px;background:#fff;box-shadow:0 5px 18px rgba(25,67,53,.035)}
.teacher-stat>span{display:block;font-size:10px;color:#7f9089}.teacher-stat>b{display:block;margin-top:4px;color:#25483c;font-size:19px;line-height:1.3}.teacher-stat>small{display:block;margin-top:1px;color:#9aa6a1;font-size:9px}
.teacher-main-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(300px,.8fr);gap:12px;margin-bottom:12px}
.teacher-panel{padding:15px 16px;min-width:0}
.teacher-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:11px}
.teacher-panel-head h2{font-size:13px;color:#294a3e}.teacher-panel-head p{margin-top:2px;color:#8a9993;font-size:9.5px}
.queue-live-tag{display:flex;align-items:center;gap:6px;padding:5px 8px;border-radius:999px;background:#f3f6f4;color:#7a8983;font-size:9px;white-space:nowrap}.queue-live-tag i{width:6px;height:6px;border-radius:50%;background:#a4b0aa}
.consult-queue{display:flex;flex-direction:column;gap:8px}
.consult-row{display:flex;align-items:flex-start;gap:10px;padding:11px;border:1px solid #e8eeeb;border-radius:11px;background:#fcfdfc}
.consult-priority{width:25px;height:25px;flex:0 0 25px;display:grid;place-items:center;border-radius:8px;background:#e9f5ee;color:#268364;font-size:9px;font-weight:750}
.consult-priority-warn{background:#fff2e8;color:#b66c3e}
.consult-row-main{flex:1;min-width:0}.consult-row-meta{display:flex;align-items:center;gap:8px}.consult-row-meta b{font-size:10px;color:#3e5d51}.consult-row-meta span{padding:2px 6px;border-radius:999px;background:#fff5e9;color:#ae7143;font-size:8px;white-space:nowrap}
.consult-row-meta .status-active{background:#edf4ff;color:#4b73a8}.consult-row-meta .status-done{background:#edf7f1;color:#438263}
.consult-row-main p{margin-top:4px;color:#596f65;font-size:10px;line-height:1.45}.consult-row-main small{display:block;margin-top:4px;color:#9aa59f;font-size:8.5px}
.accept-consult{min-height:30px;align-self:center;padding:0 10px;border:1px solid #a8d3bf;border-radius:8px;background:#eef8f2;color:#287957;font:650 9px var(--font);white-space:nowrap;cursor:pointer}
.accept-consult:hover:not(:disabled){background:#188562;color:#fff;border-color:#188562}.accept-consult:disabled{color:#96a49d;background:#f4f6f5;border-color:#e6ece9;cursor:default}
.teacher-empty-note{margin-top:9px;padding-top:8px;border-top:1px solid #edf1ef;color:#929e98;font-size:8.5px;line-height:1.55}
.expert-roster{display:flex;flex-direction:column;gap:3px}
.roster-item{display:flex;align-items:center;gap:9px;padding:8px 2px;border-bottom:1px solid #eff2f0}.roster-item:last-child{border-bottom:0}
.roster-avatar{width:29px;height:29px;flex:0 0 29px;display:grid;place-items:center;border-radius:9px;background:#e7f5ef;color:#368161;font-size:9px;font-weight:750}
.roster-amber{background:#fff2e8;color:#b36c40}.roster-blue{background:#edf2fb;color:#587bb1}
.roster-item>div:nth-child(2){flex:1;min-width:0}.roster-item b,.roster-item small{display:block}.roster-item b{font-size:9.5px;color:#435f53}.roster-item small{margin-top:2px;font-size:8px;color:#96a19c}
.roster-state{padding:3px 6px;border-radius:999px;background:#f3f5f4;color:#929d98;font-size:8px;white-space:nowrap}
.roster-config{display:flex;align-items:center;justify-content:space-between;width:100%;min-height:32px;margin-top:8px;padding:0 10px;border:1px solid #e5ece8;border-radius:8px;background:#fafcfb;color:#557263;font:600 9px var(--font);cursor:pointer}
.roster-config span{font-size:8px;color:#9aa6a0;font-weight:400}
.teacher-course-panel{margin-bottom:10px}
.teacher-secondary-action{min-height:30px;font-size:9px}.teacher-secondary-action span{margin-left:8px}
.teacher-course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.teacher-course-item{display:flex;align-items:center;gap:8px;min-width:0;padding:9px;border:1px solid #e9eeeb;border-radius:10px;background:#fbfdfc}
.teacher-course-icon{width:29px;height:29px;flex:0 0 29px;display:grid;place-items:center;border-radius:8px;background:#eaf5ef;color:#358365;font-size:10px}
.teacher-course-icon.icon-lab{background:#edf3f7;color:#567a8d;font-size:8px;font-weight:800}.teacher-course-icon.icon-class{background:#f5f0e6;color:#957844}
.teacher-course-item>div{flex:1;min-width:0}.teacher-course-item b,.teacher-course-item small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.teacher-course-item b{font-size:9px;color:#496457}.teacher-course-item small{margin-top:2px;color:#9aa49f;font-size:8px}
.content-state{font-size:8px;color:#a1aaa5;white-space:nowrap}
.teacher-demo-foot{display:flex;align-items:flex-start;gap:8px;padding:9px 11px;border-radius:9px;background:#f4f7f5;color:#899891;font-size:9px;line-height:1.5}
.demo-info-icon{width:15px;height:15px;flex:0 0 15px;display:grid;place-items:center;border:1px solid #bac8c1;border-radius:50%;color:#788d82;font-size:9px;font-weight:700}
.admin-analytics-heading{margin-top:24px}
.admin-analytics-heading .prototype-label{margin-left:auto}
.consult-empty-state{padding:22px;text-align:center;color:#899891;font-size:10px}

/* 咨询与课程弹窗 */
.consult-dialog{width:min(520px,calc(100vw - 28px));max-height:calc(100vh - 32px);margin:auto;padding:0;border:1px solid #dde8e2;border-radius:18px;background:#fff;color:#243f35;box-shadow:0 24px 80px rgba(12,39,29,.25)}
.consult-dialog::backdrop{background:rgba(18,39,31,.42);backdrop-filter:blur(3px)}
.consult-dialog-card{position:relative;padding:24px}
.dialog-close{position:absolute;right:16px;top:15px;width:32px;height:32px;border:1px solid #e5ece8;border-radius:9px;background:#fff;color:#6c8077;font-size:21px;cursor:pointer}
.dialog-kicker{display:flex;align-items:center;gap:8px;color:#a9673d;font-size:10px;font-weight:700;letter-spacing:.4px}
.dialog-kicker-icon{width:26px;height:26px;display:grid;place-items:center;border-radius:8px;background:#fff1e6;color:#b66d3d;font-size:16px}
.consult-dialog h2{margin-top:13px;font-size:22px;color:#24463a;letter-spacing:-.5px}.dialog-intro{margin:5px 0 17px;color:#7d8e86;font-size:11px;line-height:1.6}
.consult-dialog label{display:block;margin:12px 0 5px;color:#486357;font-size:10px;font-weight:650}.consult-dialog label span{color:#a2aca7;font-weight:400}
.consult-dialog input,.consult-dialog select,.consult-dialog textarea{width:100%;padding:10px 11px;border:1px solid #dfe9e4;border-radius:9px;background:#fcfdfc;color:#29473c;font:12px var(--font)}
.consult-dialog textarea{resize:vertical;min-height:72px}.consult-dialog input::placeholder,.consult-dialog textarea::placeholder{color:#a0aaa5}
.dialog-demo-note{margin-top:14px;padding:10px;border-radius:9px;background:#f5f8f6;color:#7e8d86;font-size:9px;line-height:1.55}.dialog-demo-note b{display:block;color:#647c70;margin-bottom:2px}
.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:17px}.dialog-cancel,.dialog-submit{min-height:39px;padding:0 14px;border-radius:9px;font:650 11px var(--font);cursor:pointer}
.dialog-cancel{border:1px solid #e2eae6;background:#fff;color:#64796f}.dialog-submit{border:1px solid #b76a3f;background:#bd7041;color:#fff}.dialog-submit:hover{background:#a95e32}
.course-dialog{width:min(600px,calc(100vw - 28px))}.course-player-placeholder{height:230px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;margin-top:16px;border-radius:12px;background:linear-gradient(135deg,#edf5f0,#e3ece7);color:#7f9289;font-size:10px}
.player-play{width:48px;height:48px;display:grid;place-items:center;padding-left:3px;border-radius:50%;background:#fff;color:#128360;box-shadow:0 5px 18px rgba(31,79,58,.14)}
.course-dialog-content{margin-top:14px}.course-dialog-content b{font-size:10px;color:#456256}.course-dialog-content p{margin-top:4px;color:#7f8e87;font-size:10px;line-height:1.6}
.prototype-toast{position:fixed;z-index:50;left:50%;bottom:25px;transform:translate(-50%,12px);opacity:0;pointer-events:none;padding:11px 16px;border:1px solid rgba(32,86,64,.15);border-radius:11px;background:#244b3d;color:#fff;font-size:11px;box-shadow:0 8px 24px rgba(17,54,39,.22);transition:.2s}
.prototype-toast.show{transform:translate(-50%,0);opacity:1}

@media(max-width:1120px){
  .student-layout{grid-template-columns:minmax(0,1fr) 270px;gap:12px}
  .ask-card{padding:17px}.mode-panel .mode{padding:7px 8px}.mode-panel .mode small{display:none}
  .course-cards{gap:7px}.course-card-body{padding:9px}
}
@media(max-width:900px){
  .student-layout,.teacher-main-grid{grid-template-columns:1fr}
  .expert-column{display:grid;grid-template-columns:1fr 1fr;align-items:start}
  .expert-card{grid-row:span 2}.teacher-stat-row{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:650px){
  .student-title-row{align-items:flex-start}.terminal-status{display:none}
  .student-title-row h1{font-size:27px}.student-title-row p{font-size:12px}
  .ask-card-title{align-items:flex-start}.grounded-pill{max-width:130px;white-space:normal;font-size:9px}
  .input-assurance{display:block}.input-assurance span{display:block;margin-top:3px}
  .student-input-box .send-btn{min-width:45px;width:45px;padding:0}.student-input-box .send-btn span{display:none}
  .mode-panel .mode-bar{grid-template-columns:repeat(2,minmax(0,1fr))}.mode-panel .mode small{display:block}
  .course-cards,.teacher-course-grid{grid-template-columns:1fr}
  .course-card{display:grid;grid-template-columns:112px 1fr}.course-thumb{height:100%;min-height:100px}
  .expert-column{display:flex}.teacher-welcome{align-items:flex-start;flex-direction:column}.teacher-welcome h1{font-size:25px}
  .accept-consult{padding:0 7px}.teacher-course-item{min-height:48px}
  .content{padding:16px 13px 26px}.ask-card{padding:15px}.consult-dialog-card{padding:20px}
}