/* 分页站点：每个栏目一页，页面之间做翻页过渡 */
:root{--ease:cubic-bezier(.2,.7,.2,1)}
html{scroll-padding-top:64px;scroll-behavior:auto}
#view{min-height:70vh}
.page-in{animation:pageIn .7s var(--ease) both}
.page-out{animation:pageOut .28s ease-in both}
@keyframes pageIn{from{transform:translateY(28px);opacity:0}to{transform:none;opacity:1}}
@keyframes pageOut{to{transform:translateY(-12px);opacity:0}}
.curtain{position:fixed;inset:0;z-index:40;pointer-events:none;display:flex;visibility:hidden}
.curtain.run{visibility:visible;animation:cvis 1.25s linear forwards}
@keyframes cvis{to{visibility:hidden}}
.curtain i{flex:1;background:var(--c);transform:scaleY(0)}
.curtain.slat.run i{animation:slat .9s cubic-bezier(.7,0,.2,1) calc(var(--d)*30ms) both}
@keyframes slat{0%{transform:scaleY(0);transform-origin:50% 100%}45%{transform:scaleY(1);transform-origin:50% 100%}58%{transform:scaleY(1);transform-origin:50% 0}100%{transform:scaleY(0);transform-origin:50% 0}}
.curtain.band{flex-direction:column}
.curtain.band i{transform:scaleX(0)}
.curtain.band.run i{animation:band .95s cubic-bezier(.7,0,.2,1) calc(var(--d)*22ms) both}
@keyframes band{0%{transform:scaleX(0);transform-origin:0 50%}45%{transform:scaleX(1);transform-origin:0 50%}58%{transform:scaleX(1);transform-origin:100% 50%}100%{transform:scaleX(0);transform-origin:100% 50%}}
.curtain.ripple i{position:absolute;inset:0;transform:none;clip-path:circle(0 at var(--x) var(--y))}
.curtain.ripple.run i{animation:ripple 1s cubic-bezier(.65,0,.25,1) both}
@keyframes ripple{0%{clip-path:circle(0 at var(--x) var(--y));opacity:1}40%{clip-path:circle(150% at var(--x) var(--y));opacity:1}60%{clip-path:circle(150% at var(--x) var(--y));opacity:1}100%{clip-path:circle(150% at var(--x) var(--y));opacity:0}}
.curtain b{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);color:#fff;font-family:var(--display);font-weight:900;font-size:clamp(24px,4vw,44px);text-align:center;white-space:nowrap;opacity:0;mix-blend-mode:normal;text-shadow:0 2px 18px rgba(0,0,0,.18)}
.curtain b span{display:block;font-family:var(--mono,ui-monospace,monospace);font-weight:400;font-size:12px;letter-spacing:.3em;text-transform:uppercase;margin-bottom:8px;opacity:.85}
.curtain.run b{animation:clabel 1s ease both}
.curtain.band b{color:#1f524c;text-shadow:none}
@keyframes clabel{0%,22%{opacity:0;transform:translate(-50%,-30%)}40%,55%{opacity:1;transform:translate(-50%,-50%)}75%,100%{opacity:0;transform:translate(-50%,-70%)}}
@media (max-width:560px){.curtain b{font-size:24px;white-space:normal;width:86vw}}

nav.top .links a.cta-l{color:var(--coral);font-weight:500}
nav.top .links a.cta-l::after{background:var(--coral)}

/* ---------- 首页：满屏图版 ---------- */
.stage{position:relative;height:min(82vh,820px);min-height:520px;overflow:hidden;background:var(--tint)}
.stage .slide{position:absolute;inset:0;opacity:0;transition:opacity 1.6s ease}
.stage .slide.on{opacity:1}
.stage .slide img{width:100%;height:100%;object-fit:cover;transform:scale(1.08);transition:transform 9s linear}
.stage .slide.on img{transform:scale(1)}
.stage .veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(246,247,245,.94) 0%,rgba(246,247,245,.72) 34%,rgba(246,247,245,0) 62%)}
.stage .copy{position:absolute;left:0;right:0;bottom:0;top:0;max-width:1160px;margin:0 auto;padding-inline:clamp(16px,4vw,40px);display:flex;flex-direction:column;justify-content:center;gap:18px;color:#1d2421}
.stage .copy .mono{color:#4d5652}
.stage h1{font-weight:900;font-size:clamp(52px,9vw,128px);line-height:1;letter-spacing:.02em}
.stage h1 span{display:block;animation:rise 1s var(--ease) both}
.stage h1 span:nth-child(2){color:#3f8f88;animation-delay:.12s}
.stage .copy p.lede{max-width:30em;color:#3b4440;font-size:16px;animation:rise 1s .25s var(--ease) both}
.stage .copy .cta{display:flex;gap:10px;flex-wrap:wrap;animation:rise 1s .35s var(--ease) both}
.stage .copy .btn{border-color:#68716d;color:#3b4440;background:rgba(246,247,245,.72)}
.stage .copy .btn.solid{background:#1d2421;border-color:#1d2421;color:#f6f7f5}
.stage .copy .btn:hover{background:#1d2421;border-color:#1d2421;color:#f6f7f5}
.stage .copy .btn.solid:hover{background:#c8553d;border-color:#c8553d}
.stage .dots{position:absolute;right:clamp(16px,4vw,40px);bottom:16px;display:flex;gap:6px;align-items:center;z-index:2}
.stage .dots button{all:unset;box-sizing:border-box;cursor:pointer;width:36px;height:44px;padding:20px 0;position:relative;display:block}
.stage .dots button::before{content:"";position:absolute;left:0;right:0;top:50%;height:4px;margin-top:-2px;background:rgba(29,36,33,.28);border-radius:2px}
.stage .dots button i{position:absolute;left:0;right:0;top:50%;height:4px;margin-top:-2px;background:#1d2421;border-radius:2px;transform:scaleX(0);transform-origin:left;pointer-events:none}
.stage .dots button.on::before{background:rgba(29,36,33,.5)}
.stage .dots button.on i{animation:prog 6s linear forwards}
.stage .dots button:not(.on) i{transform:scaleX(0);animation:none}
@keyframes prog{to{transform:scaleX(1)}}
@media (prefers-reduced-motion:reduce){.stage .dots button.on i{transform:scaleX(1);animation:none}}
.stage .cap{position:absolute;right:clamp(16px,4vw,40px);bottom:40px;font-family:var(--mono);font-size:11px;color:#4d5652;background:rgba(246,247,245,.85);padding:2px 8px}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .stage .veil{background:linear-gradient(90deg,rgba(246,247,245,.94) 0%,rgba(246,247,245,.72) 34%,rgba(246,247,245,0) 62%)}}

.entries{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-top:1px solid var(--ink);margin-top:0}
.entry{display:flex;flex-direction:column;gap:6px;padding:22px 20px 22px 0;text-decoration:none;color:inherit;border-bottom:1px solid var(--line);position:relative;transition:padding .3s var(--ease)}
.entry + .entry{padding-left:20px;border-left:1px solid var(--line)}
.entry .mono{color:var(--coral)}
.entry strong{font-family:var(--display);font-size:24px;font-weight:900}
.entry span{color:var(--mute);font-size:14px}
.entry em{font-style:normal;font-size:13px;margin-top:6px;color:var(--ink);font-weight:500;transition:transform .3s var(--ease)}
.entry:hover em{transform:translateX(6px)}
.entry:hover strong{color:var(--glass)}

/* ---------- 页头 ---------- */
.phead{padding-block:56px 8px;display:grid;grid-template-columns:170px minmax(0,1fr);gap:clamp(16px,3vw,40px)}
.phead aside{border-top:2px solid var(--ink);padding-top:10px;align-self:start}
.phead aside .mono{display:block}
.phead aside .zh{display:block;font-family:var(--display);font-weight:900;font-size:15px;margin-top:4px}
.phead h1{font-size:clamp(34px,5vw,60px);font-weight:900;line-height:1.1}
.phead p{color:var(--mute);max-width:44em;margin-top:14px}
.body{display:grid;grid-template-columns:170px minmax(0,1fr);gap:clamp(16px,3vw,40px);padding-block:28px 24px}
.body > .side{font-size:13px;color:var(--mute)}
.pager{display:flex;justify-content:space-between;gap:12px;margin-top:64px;border-top:1px solid var(--line);padding-top:16px;flex-wrap:wrap}
.pager a{text-decoration:none;display:flex;flex-direction:column;gap:2px}
.pager a span{font-family:var(--mono);font-size:11px;color:var(--mute)}
.pager a strong{font-family:var(--display);font-size:20px;font-weight:900;transition:color .2s}
.pager a:hover strong{color:var(--coral)}
.pager a.nx{text-align:right;margin-left:auto}

/* ---------- 课程库：学期地图 ---------- */
.semmap{overflow-x:auto;border-top:1px solid var(--ink);border-bottom:1px solid var(--line)}
.semgrid{display:grid;grid-template-columns:repeat(8,minmax(118px,1fr));min-width:944px}
.semcol{border-right:1px solid var(--line);padding:10px 8px 14px;display:flex;flex-direction:column;gap:6px;position:relative}
.semcol:last-child{border-right:0}
.semcol h4{margin:0 0 4px;font-family:var(--mono);font-weight:500;font-size:11px;color:var(--mute);letter-spacing:.06em}
.semcol h4 b{display:block;font-family:var(--display);font-size:22px;color:var(--ink);font-weight:900;letter-spacing:0}
.chip{display:block;text-decoration:none;font-size:12.5px;line-height:1.35;padding:6px 8px;border-left:3px solid var(--k,var(--line));background:var(--card);color:var(--ink);transition:transform .25s var(--ease),box-shadow .25s,opacity .25s}
.chip:hover{transform:translateX(3px);box-shadow:0 6px 16px -10px rgba(0,0,0,.35)}
.chip small{display:block;font-family:var(--mono);font-size:10px;color:var(--mute)}
.chip.pilot-chip{background:var(--coral);color:var(--paper);border-left-color:var(--coral)}
.chip.pilot-chip small{color:var(--paper);opacity:.8}
.semmap.dim .chip:not(.hl){opacity:.18}
.keys{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 14px}
.keys button{font:inherit;font-size:12.5px;display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer;transition:all .2s}
.keys button i{width:10px;height:10px;background:var(--k)}
.keys button.on{border-color:var(--ink);background:var(--ink);color:var(--paper)}
.k-req{--k:#1d2421}.k-u{--k:#3f8f88}.k-c{--k:#c8553d}.k-h{--k:#7a9a4f}.k-d{--k:#5a6fa8}.k-m{--k:#b08a3e}.k-p{--k:#8a8f8c}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .k-req{--k:#e6ebe8}}
:root[data-theme="dark"] .k-req{--k:#e6ebe8}

/* 课程群图块 */
.clusters{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}
.cl{position:relative;overflow:hidden;text-align:left;border:0;padding:0;cursor:pointer;background:#1d2421;color:#fff;font:inherit;min-height:220px}
.cl:nth-child(1),.cl:nth-child(2){grid-column:span 3;min-height:280px}
.cl:nth-child(n+3){grid-column:span 2}
.cl img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.cl::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,14,12,.2) 10%,rgba(10,14,12,.78) 100%);transition:background .4s}
.cl:hover img{transform:scale(1.07)}
.cl .t{position:absolute;left:16px;right:16px;bottom:14px;z-index:1}
.cl .t .mono{color:rgba(255,255,255,.75)}
.cl .t strong{display:block;font-family:var(--display);font-size:22px;font-weight:900;line-height:1.25}
.cl .t span.n{font-size:12px;opacity:.85}
.cl .bar{position:absolute;left:0;top:0;height:4px;width:100%;background:var(--k);z-index:1;transform:scaleX(.18);transform-origin:left;transition:transform .5s var(--ease)}
.cl:hover .bar,.cl.on .bar{transform:scaleX(1)}
.cl.on{outline:2px solid var(--ink);outline-offset:3px}
.cl-detail{margin-top:20px;border:1px solid var(--ink);background:var(--card);padding:20px}
.cl-detail h3{font-size:22px;font-weight:900;margin-bottom:12px}
.ccards{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px}
.ccard{display:flex;flex-direction:column;gap:4px;padding:14px;text-decoration:none;border:1px solid var(--line);background:var(--paper);transition:border-color .2s,transform .25s var(--ease)}
.ccard:hover{border-color:var(--ink);transform:translateY(-3px)}
.ccard .mono{font-size:10.5px}
.ccard b{font-family:var(--display);font-weight:900;font-size:16px;line-height:1.35}
.ccard small{color:var(--mute);font-size:12px;margin-top:auto}

/* ---------- 课程页子导航 ---------- */
.ctabs{display:flex;gap:0;border-bottom:1px solid var(--line);margin-top:20px;overflow-x:auto;scrollbar-width:none}
.ctabs a{padding:10px 16px;text-decoration:none;font-size:14px;color:var(--mute);border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap;transition:color .2s,border-color .3s}
.ctabs a:hover{color:var(--ink)}
.ctabs a.on{color:var(--ink);border-bottom-color:var(--coral)}
.cband{position:relative;height:clamp(220px,34vw,380px);overflow:hidden;background:var(--tint)}
.cband img{width:100%;height:100%;object-fit:cover;animation:drift 20s ease-in-out infinite alternate}
.cband .lbl{position:absolute;left:clamp(16px,4vw,40px);bottom:20px;background:var(--paper);padding:14px 18px;max-width:calc(100% - 32px)}
.cband .lbl h1{font-size:clamp(30px,5vw,56px);font-weight:900;line-height:1.05}
.cband .lbl p{font-family:var(--mono);font-size:12px;color:var(--mute);margin-top:6px}

/* ---------- 评价工作台 ---------- */
.studio{display:grid;grid-template-columns:240px minmax(0,1fr);gap:0;border:1px solid var(--ink);background:var(--card);min-height:640px}
.roster{border-right:1px solid var(--line);display:flex;flex-direction:column;min-width:0}
.roster .rs-head{padding:12px;border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:8px}
.roster input{font:inherit;padding:7px 10px;border:1px solid var(--line);background:var(--paper);color:var(--ink);width:100%}
.roster ul{list-style:none;margin:0;padding:0;overflow-y:auto;flex:1;min-height:0;max-height:none}
.roster li button{all:unset;box-sizing:border-box;width:100%;cursor:pointer;display:grid;grid-template-columns:1fr auto;gap:2px 8px;padding:9px 12px;border-bottom:1px solid var(--line);transition:background .2s}
.roster li button:hover{background:var(--tint)}
.roster li button.on{background:var(--ink);color:var(--paper)}
.roster li button.on small{color:var(--paper);opacity:.75}
.roster b{font-weight:500}
.roster small{font-family:var(--mono);font-size:10.5px;color:var(--mute)}
.roster .pips{display:flex;gap:3px;align-items:center}
.roster .pips i{width:8px;height:8px;border-radius:50%;border:1px solid var(--mute)}
.roster .pips i.done{background:var(--glass);border-color:var(--glass)}
.roster .pips i.ai{background:var(--coral);border-color:var(--coral)}
.desk{padding:20px;min-width:0;display:flex;flex-direction:column;gap:18px}
.desk-top{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap}
.desk-top h2{font-size:30px;font-weight:900}
.desk-top .tot{text-align:right}
.desk-top .tot strong{font-family:var(--display);font-size:36px;font-weight:900;line-height:1;font-variant-numeric:tabular-nums}
.ttabs{display:flex;gap:0;border:1px solid var(--ink);align-self:flex-start}
.ttabs button{font:inherit;font-size:13px;padding:7px 14px;border:0;background:transparent;color:var(--ink);cursor:pointer}
.ttabs button + button{border-left:1px solid var(--ink)}
.ttabs button.on{background:var(--ink);color:var(--paper)}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;counter-reset:s}
.step{border:1px solid var(--line);margin-left:-1px;padding:14px;display:flex;flex-direction:column;gap:10px;min-width:0;background:var(--paper)}
.step:first-child{margin-left:0}
.step h3{font-size:16px;font-weight:900;display:flex;gap:8px;align-items:baseline}
.step h3::before{counter-increment:s;content:counter(s);font-family:var(--mono);font-size:11px;color:var(--coral)}
.step.active{border-color:var(--ink);z-index:1}
.step textarea,.step input[type=text]{font:inherit;font-size:13.5px;width:100%;padding:8px 10px;border:1px solid var(--line);background:var(--card);color:var(--ink);resize:vertical}
.drop{border:1px dashed var(--mute);padding:12px;text-align:center;font-size:13px;color:var(--mute);cursor:pointer;transition:background .2s,border-color .2s}
.drop:hover,.drop.over{background:var(--tint);border-color:var(--glass);color:var(--ink)}
.thumbs{display:flex;gap:6px;flex-wrap:wrap}
.thumbs figure{margin:0;position:relative;width:64px;height:64px}
.thumbs img{width:100%;height:100%;object-fit:cover;border:1px solid var(--line)}
.thumbs button{position:absolute;top:-6px;right:-6px;width:18px;height:18px;border-radius:50%;border:0;background:var(--ink);color:var(--paper);font-size:11px;line-height:18px;padding:0;cursor:pointer}
.ai-out{font-size:13.5px;min-height:120px;display:flex;flex-direction:column;gap:8px}
.ai-out .think{display:flex;align-items:center;gap:10px;color:var(--mute)}
.ai-out .think i{width:14px;height:14px;border:2px solid var(--line);border-top-color:var(--glass);border-radius:50%;animation:spin 1s linear infinite}
.ai-out .err{color:var(--coral)}
.ai-out .sum{background:var(--tint);padding:10px;line-height:1.7}
.ai-out .pts{margin:0;padding-left:1.1em}
.dimrows{display:grid;gap:8px}
.dimrow{display:grid;grid-template-columns:7.2em minmax(0,1fr) 3.4em;gap:10px;align-items:center;font-size:13px}
.dimrow input[type=range]{width:100%;accent-color:var(--glass)}
.dimrow output{font-family:var(--mono);text-align:right;font-variant-numeric:tabular-nums}
.dimrow .ai-mark{font-family:var(--mono);font-size:10.5px;color:var(--coral)}
.lv{display:flex;gap:4px;flex-wrap:wrap}
.lv span{font-size:11px;padding:1px 6px;border:1px solid var(--line);color:var(--mute)}
.lv span.on{border-color:var(--glass);color:var(--glass)}
.actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.actions .note{margin:0}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.btn.ai{border-color:var(--coral);color:var(--coral)}
.btn.ai:hover{background:var(--coral);color:var(--paper)}
.log{border-top:1px solid var(--line);padding-top:14px}
.log h3{font-size:16px;font-weight:900;margin-bottom:10px}
.logrow{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;font-size:13px;border:1px solid var(--line);padding:12px;background:var(--paper)}
.logrow + .logrow{margin-top:8px}
.logrow h4{margin:0 0 4px;font-family:var(--mono);font-size:11px;font-weight:500;color:var(--mute)}
.logrow p{color:var(--ink);white-space:pre-wrap}
.empty{color:var(--mute);font-size:13px;padding:12px;border:1px dashed var(--line);text-align:center}
.toast{position:fixed;left:50%;bottom:calc(env(safe-area-inset-bottom,0px) + 24px);transform:translate(-50%,20px);background:var(--ink);color:var(--paper);padding:8px 16px;font-size:14px;opacity:0;transition:all .3s;z-index:60;pointer-events:none}
.toast.on{opacity:1;transform:translate(-50%,0)}

@media (max-width:860px){
  .stage{height:auto;min-height:0}
  .stage .slide{position:absolute}
  .stage .copy{position:relative;padding-block:56px 64px}
  .stage .veil{background:rgba(246,247,245,.78)}
  .entries{grid-template-columns:minmax(0,1fr)}
  .entry + .entry{padding-left:0;border-left:0}
  .phead,.body{grid-template-columns:minmax(0,1fr)}
  .body > .side{display:none}
  .clusters{grid-template-columns:minmax(0,1fr)}
  .cl:nth-child(n){grid-column:auto;min-height:200px}
  .studio{grid-template-columns:minmax(0,1fr)}
  .roster{border-right:0;border-bottom:1px solid var(--line)}
  .roster ul{max-height:220px}
  .steps{grid-template-columns:minmax(0,1fr)}
  .step{margin-left:0;margin-top:-1px}
  .logrow{grid-template-columns:minmax(0,1fr)}
}
@media (prefers-reduced-motion:reduce){.stage .slide img{transform:none!important}}

/* ---------- 返回条 ---------- */
.backbar{max-width:1160px;margin:0 auto;padding:14px clamp(16px,4vw,40px) 0;display:flex;gap:18px;font-size:13.5px}
.backbar a{text-decoration:none;color:var(--mute);transition:color .2s}
.backbar a:first-child{color:var(--ink);font-weight:500}
.backbar a:hover{color:var(--coral)}

/* ---------- 课程库：学期时间轴 ---------- */
.lib-block{margin-top:48px}
.lib-title{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.lib-title h2{font-size:clamp(22px,2.6vw,28px);font-weight:900}
.seg{display:inline-flex;background:var(--tint);padding:3px;border-radius:999px;gap:2px}
.seg button{font:inherit;font-size:13px;border:0;background:transparent;color:var(--mute);padding:6px 14px;border-radius:999px;cursor:pointer;transition:all .25s}
.seg button.on{background:var(--card);color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.08)}
.years{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;position:relative}
.year{position:relative;padding-top:26px}
.year::before{content:"";position:absolute;left:0;right:-14px;top:9px;height:1px;background:var(--line)}
.year:last-child::before{right:0}
.year .yl{position:absolute;top:0;left:0;font-family:var(--display);font-weight:900;font-size:15px;background:var(--paper);padding-right:10px}
.terms{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.term{position:relative;overflow:hidden;font:inherit;text-align:left;border:1px solid var(--line);background:var(--card);color:var(--ink);padding:12px 14px 16px;cursor:pointer;transition:border-color .2s,transform .25s var(--ease),background .25s}
.term b{display:block;font-family:var(--display);font-size:20px;font-weight:900;line-height:1.2}
.term span{font-size:12px;color:var(--mute)}
.term i{position:absolute;left:0;bottom:0;height:3px;width:calc(var(--n) * 7%);max-width:100%;background:var(--glass);opacity:.55;transition:opacity .25s}
.term:hover{border-color:var(--ink);transform:translateY(-2px)}
.term.on{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.term.on span{color:color-mix(in srgb,var(--paper) 70%,transparent)}
.term.on i{background:var(--coral);opacity:1}
.term-out,.cl-detail{margin-top:26px;border:0;background:transparent;padding:0}
.term-head{display:flex;align-items:baseline;gap:14px;margin-bottom:16px}
.term-head strong{font-family:var(--display);font-size:22px;font-weight:900}
.term-head span{color:var(--mute);font-size:13px}
.ccards.roomy{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.ccards.roomy .ccard{position:relative;padding:20px 20px 18px 24px;gap:8px;min-height:132px;background:var(--card);border-color:transparent;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.ccards.roomy .ccard:hover{border-color:var(--line);box-shadow:0 10px 24px -14px rgba(0,0,0,.25)}
.ccard .tag{position:absolute;left:0;top:18px;bottom:18px;width:3px;background:var(--k,var(--line))}
.ccards.roomy .ccard b{font-size:18px}
.ccard.pilot{background:var(--ink)!important;color:var(--paper)}
.ccard.pilot .tag{background:var(--coral)}
.ccard.pilot .mono{color:var(--coral)}
.ccard.pilot small{color:color-mix(in srgb,var(--paper) 72%,transparent)}


/* ---------- 作业提交 ---------- */
.submit-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;margin-top:26px;align-items:start}
.sform{background:var(--card);border:1px solid var(--line);padding:clamp(18px,3vw,30px);display:grid;gap:16px}
.frow{display:grid;grid-template-columns:56px minmax(0,1fr) auto;gap:12px;align-items:center}
.frow.top{align-items:start}
.frow > label{font-size:13px;color:var(--mute)}
.frow.top > label{padding-top:8px}
.frow > :nth-child(2):last-child{grid-column:2/4}
.sform input[type=text],.sform select,.sform textarea,#stuDlg input,#stuDlg select,#stuDlg textarea{font:inherit;font-size:14px;width:100%;padding:8px 10px;border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:0}
.sform textarea,#stuDlg textarea{resize:vertical}
.linkbtn{font:inherit;font-size:13px;border:0;background:none;color:var(--glass);cursor:pointer;padding:0;white-space:nowrap;text-decoration:underline;text-underline-offset:3px}
.linkbtn:hover{color:var(--coral)}
.tbrief{margin-left:68px;font-size:13px;color:var(--mute);background:var(--tint);padding:10px 14px;border-left:3px solid var(--glass)}
.drop.big{display:block;padding:30px 14px;font-size:14px}
.drop.big strong{color:var(--ink);font-weight:500}
.sform .thumbs{margin-top:10px}
.sform .thumbs figure{width:84px;height:84px}
.sstat{position:sticky;top:76px;border:1px solid var(--ink);padding:20px;background:var(--paper)}
.sstat h3{font-size:18px;font-weight:900;margin-bottom:10px}
.big-n{font-size:15px;color:var(--mute)}
.big-n strong{font-family:var(--display);font-size:46px;font-weight:900;color:var(--ink);line-height:1}
.big-n span{display:block;font-size:12.5px}
.meter{height:6px;background:var(--tint);margin:12px 0 14px;overflow:hidden}
.meter i{display:block;height:100%;background:var(--coral);transition:width .6s var(--ease)}
.sublist{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.sublist li{display:grid;font-size:13px;border-top:1px solid var(--line);padding-top:8px}
.sublist li span{color:var(--mute);font-size:12px}
.subbox{border:1px solid var(--line);background:var(--tint);padding:10px 12px;display:grid;gap:6px;margin-bottom:10px}
.subbox .mono{font-size:10.5px;color:var(--glass)}
.pips .subm{font-style:normal;font-size:9px;color:var(--coral);margin-right:2px}


/* ---------- 评分量规 / 等级描述 ---------- */
.task-rubrics{display:grid;gap:22px;margin:18px 0 28px}
.task-rubric h4{font-size:18px;font-weight:900;margin:0 0 8px}
.rubric-box{border:1px solid var(--line);background:var(--card);padding:12px 14px 14px;margin-top:10px}
.rubric-box.compact{padding:10px 12px 12px;margin-top:8px}
.rb-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 14px;align-items:baseline;margin-bottom:8px}
.rb-head strong{font-size:14px;font-weight:700}
.rb-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.rubric{width:100%;border-collapse:collapse;font-size:12.5px;min-width:640px}
table.rubric th,table.rubric td{text-align:left;padding:8px 10px 8px 0;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.45}
table.rubric thead th{font-weight:500;color:var(--mute);font-size:11.5px;white-space:nowrap}
table.rubric tbody th{font-weight:500;color:var(--ink);width:22%;min-width:9em}
.rubric-box.compact table.rubric{font-size:12px;min-width:560px}
.packs{margin-top:12px;padding-top:10px;border-top:1px dashed var(--line)}
.packs .mono{margin:0 0 6px;font-size:11px;color:var(--mute)}
.packs ul{list-style:none;margin:0;padding:0;display:grid;gap:4px;font-size:13px}
.packs li b{font-weight:700}
.packs .hard{margin:8px 0 0;font-size:12.5px;color:var(--coral);line-height:1.5}
.tguide{margin-top:auto;padding:12px;border-top:1px solid var(--line);background:var(--tint);font-size:12.5px}
.tguide .mono{display:block;margin-bottom:6px;color:var(--mute);font-size:10.5px}
.tguide ol{margin:0;padding-left:1.2em;display:grid;gap:2px;font-weight:500}
.tguide .tg-tip{margin:8px 0 0;color:var(--mute);line-height:1.45;font-size:12px}
.tbrief .rubric-box{margin-left:0;background:var(--paper)}
.tbrief > p{margin:0 0 8px}
@media (max-width:860px){
  .tguide{display:block}
}
/* ---------- 新建学生 ---------- */
#stuDlg{border:1px solid var(--ink);padding:0;background:var(--paper);color:var(--ink);width:min(440px,calc(100vw - 32px))}
#stuDlg::backdrop{background:rgba(20,25,23,.45);backdrop-filter:blur(3px)}
#stuDlg form{padding:24px;display:grid;gap:12px}
#stuDlg h3{font-size:22px;font-weight:900}
#stuDlg label{display:grid;gap:4px;font-size:13px;color:var(--mute)}
#stuDlg .two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
#stuDlg .err{color:var(--coral);font-size:13px;min-height:1.4em}
#stuDlg .actions{display:flex;gap:10px;justify-content:flex-end}

@media (max-width:860px){
  .years{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:18px}
  .year::before{right:0}

  .submit-grid{grid-template-columns:minmax(0,1fr)}
  .sstat{position:static}
  .frow{grid-template-columns:minmax(0,1fr)}
  .frow > :nth-child(2):last-child{grid-column:auto}
  .tbrief{margin-left:0}
  .frow.top > label{padding-top:0}
}

/* ---------- 课程群：等宽展开 ---------- */
.clusters{display:flex;gap:10px;height:440px}
.cl,.cl:nth-child(n){flex:1 1 0;min-width:0;min-height:0;grid-column:auto;transition:flex .7s var(--ease)}
.cl.on{flex:2.8 1 0;outline:none}
.cl .bar{background:var(--k);height:4px}
.cl .no{position:absolute;top:14px;left:16px;z-index:1;font-family:var(--mono);font-size:12px;color:#fff;letter-spacing:.1em}
.cl::after{background:linear-gradient(180deg,rgba(10,14,12,.12) 0%,rgba(10,14,12,0) 30%,rgba(10,14,12,.78))}
.cl:not(.on) img{filter:saturate(.7) brightness(.92);transition:transform 1.2s var(--ease),filter .6s}
.cl .t strong{font-size:clamp(17px,1.7vw,22px)}
.cl .t .mono,.cl .d,.cl .t span.n{display:block;max-height:0;opacity:0;overflow:hidden;transition:max-height .6s var(--ease),opacity .5s}
.cl.on .t .mono{max-height:2em;opacity:1}
.cl.on .d{max-height:3em;opacity:1;font-size:14px;margin:4px 0 2px}
.cl.on .t span.n{max-height:2em;opacity:.85}
.cl:not(.on):hover img{filter:none}

/* ---------- 五维结构图 ---------- */
.frame svg.fw{max-width:520px}
.fw .ring{transform-origin:260px 260px}
.fw .wedge{fill-opacity:0;transition:fill-opacity .5s}
.fw .wedge.on{fill-opacity:.1}
.fw .arc{stroke-opacity:.25;transition:stroke-opacity .4s,stroke-width .4s}
.fw .arc.on{stroke-opacity:1;stroke-width:8}
.fw .halo{transform-origin:260px 260px;animation:halo 2.8s ease-out infinite}
@keyframes halo{0%{transform:scale(.9);opacity:.9}100%{transform:scale(1.7);opacity:0}}
.fw .vdot{transform-box:fill-box;transform-origin:center;animation:vin .6s var(--ease) both;animation-delay:var(--d)}
@keyframes vin{from{transform:scale(0)}to{transform:none}}
.dim-label circle{fill:var(--card);stroke:var(--k,var(--line));stroke-width:2;filter:drop-shadow(0 4px 8px rgba(0,0,0,.08))}
.dim-label text{fill:var(--k,var(--ink))}
.dim-label:hover circle,.dim-label.on circle{fill:var(--k);stroke:var(--k)}
.dim-label:hover text,.dim-label.on text{fill:#fff}
.dimtabs button{display:inline-flex;align-items:center;gap:6px;border-radius:999px}
.dimtabs button i{width:8px;height:8px;border-radius:50%;background:var(--k)}
.dimtabs button.on{background:var(--k);border-color:var(--k);color:#fff}
.dimtabs button.on i{background:#fff}
.ai-fig{margin:26px 0 0;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);background:var(--card);border:1px solid var(--line);overflow:hidden}
.ai-fig img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9;display:block}
.ai-fig figcaption{padding:24px;display:grid;align-content:center;gap:8px;color:var(--mute);font-size:14px}
.ai-fig strong{font-family:var(--display);font-size:22px;color:var(--ink)}

/* ---------- 首页：教学现场 ---------- */
.scene{margin-top:72px}
.photos{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.photos figure{margin:0;position:relative;overflow:hidden;aspect-ratio:4/3;background:var(--tint)}
.photos img{width:100%;height:100%;object-fit:cover;display:block;transition:transform 1.2s var(--ease)}
.photos figure:hover img{transform:scale(1.06)}
.photos figcaption{position:absolute;left:0;right:0;bottom:0;padding:48px 18px 14px;background:linear-gradient(rgba(10,14,12,0),rgba(10,14,12,.74));color:#fff;display:grid;gap:2px}
.photos strong{font-family:var(--display);font-size:19px;font-weight:900}
.photos span{font-size:12.5px;opacity:.86}

/* ---------- 培养方案：四年路线 ---------- */
.route{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);background:var(--card);border:1px solid var(--line);margin-bottom:40px;overflow:hidden}
.route img{width:100%;height:100%;object-fit:cover;min-height:340px;display:block}
.route-in{padding:26px 28px}
.route-in h3{font-size:24px;font-weight:900;margin:4px 0 16px}
.route ol{list-style:none;margin:0;padding:0}
.route li{display:grid;grid-template-columns:86px minmax(0,1fr);column-gap:14px;padding:9px 0 9px 20px;border-left:2px solid var(--line);position:relative}
.route li::before{content:"";position:absolute;left:-7px;top:15px;width:12px;height:12px;border-radius:50%;background:var(--card);border:2px solid var(--glass)}
.route li:last-child::before{background:var(--coral);border-color:var(--coral)}
.route li span{font-family:var(--mono);font-size:11.5px;color:var(--mute);grid-row:span 2;padding-top:3px}
.route li b{font-family:var(--display);font-size:17px}
.route li small{color:var(--mute);font-size:12.5px}
.route-in p{margin-top:14px;font-size:13px;color:var(--glass)}

/* ---------- PDF ---------- */
.thumbs figure.pdf{background:var(--tint);border:1px solid var(--line);display:grid;place-content:center;text-align:center;padding:4px}
.thumbs figure.pdf span{font-family:var(--mono);font-weight:500;color:var(--coral);font-size:14px}
.thumbs figure.pdf small{font-size:9.5px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;max-width:74px}
.thumbs figure.pdf em{font-style:normal;font-size:9.5px;color:var(--mute)}
.pdfs{display:flex;flex-wrap:wrap;gap:6px}
.pdfbtn{font:inherit;font-size:12.5px;border:1px solid var(--coral);color:var(--coral);background:var(--paper);padding:4px 10px;cursor:pointer;display:grid;text-align:left}
.pdfbtn small{color:var(--mute);font-size:11px}

@media (max-width:860px){
  .clusters{flex-direction:column;height:auto}
  .cl,.cl:nth-child(n){flex:none;height:110px;transition:height .6s var(--ease)}
  .cl.on{flex:none;height:230px}
  .ai-fig,.route{grid-template-columns:minmax(0,1fr)}
  .route img{min-height:0;aspect-ratio:16/9}
  .photos{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .photos strong{font-size:15px}.photos span{display:none}
  .photos figcaption{padding:30px 10px 8px}
}
.class-strip .bar{height:5px;border-radius:3px;margin:8px 0 0;padding:0}
.class-strip .bar i{background:var(--k,var(--glass))}
.class-strip strong{color:var(--k,var(--ink))}
.detail .bars i{background:var(--k,var(--glass))!important}
.stu-tools{align-items:flex-end}

/* ---------- 教学进度甘特 ---------- */
.gantt{margin-top:10px;border-top:1px solid var(--ink)}
.g-head,.g-row{display:grid;grid-template-columns:150px minmax(0,1fr);align-items:center}
.g-head{grid-template-columns:150px repeat(5,minmax(0,1fr));border-bottom:1px solid var(--line)}
.g-head b{font-family:var(--mono);font-size:12px;font-weight:500;color:var(--mute);padding:10px 0 8px 10px;border-left:1px dashed var(--line)}
.g-row{border-bottom:1px solid color-mix(in srgb,var(--line) 60%,transparent);min-height:50px}
.g-name{display:flex;align-items:baseline;gap:8px;padding-right:10px}
.g-name b{font-family:var(--display);font-size:16px;font-weight:900;white-space:nowrap}
.g-name small{font-family:var(--mono);font-size:10.5px;color:var(--mute);white-space:nowrap}
.g-track{position:relative;height:50px;background:repeating-linear-gradient(90deg,transparent 0 calc(20% - 1px),var(--line) calc(20% - 1px) 20%)}
.g-bar{position:absolute;top:11px;bottom:11px;left:calc(var(--a) / var(--n) * 100% + 3px);width:calc((var(--b) - var(--a)) / var(--n) * 100% - 6px);border-radius:3px;display:flex;align-items:center;padding:0 10px;overflow:hidden;transform:scaleX(0);transform-origin:left;transition:transform .9s cubic-bezier(.2,.8,.2,1) calc(.25s + var(--i) * .12s),box-shadow .25s}
.gantt.go .g-bar{transform:none}
.g-bar em{font-style:normal;font-size:12px;white-space:nowrap;color:#fff;opacity:0;transition:opacity .4s calc(.9s + var(--i) * .12s)}
.gantt.go .g-bar em{opacity:1}
.g-bar.t{background:#3f8f88}.g-bar.s{background:#c4932f}.g-bar.d{background:#c8553d}.g-bar.o{background:#1d2421}
.g-row:hover .g-bar{box-shadow:0 6px 16px -6px rgba(0,0,0,.35)}
.g-row:hover .g-name b{color:var(--coral)}
.g-legend{display:flex;flex-wrap:wrap;gap:16px;padding:12px 0;font-size:12.5px;color:var(--mute)}
.g-legend i{display:inline-block;width:12px;height:8px;border-radius:2px;margin-right:6px;vertical-align:middle}
.g-legend i.t{background:#3f8f88}.g-legend i.s{background:#c4932f}.g-legend i.d{background:#c8553d}.g-legend i.o{background:#1d2421}
.g-legend .mile{margin-left:auto;color:var(--coral)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .g-bar.o,:root:not([data-theme="light"]) .g-legend i.o{background:#6b7772}}

/* ---------- 进入视野动画 ---------- */
.rv.in{animation:rvIn .9s cubic-bezier(.2,.75,.2,1) both;animation-delay:calc(var(--ri,0) * 70ms)}
@keyframes rvIn{from{opacity:0;transform:translateY(28px) scale(.985)}to{opacity:1;transform:none}}
.photos figure.rv.in img,.route.rv.in img,.ai-fig.rv.in img{animation:imgIn 1.6s cubic-bezier(.2,.75,.2,1) both;animation-delay:calc(var(--ri,0) * 70ms)}
@keyframes imgIn{from{transform:scale(1.18)}to{transform:scale(1)}}
.photos figure.rv.in{animation-name:clipIn}
@keyframes clipIn{from{clip-path:inset(0 0 100% 0);transform:translateY(20px)}to{clip-path:inset(0);transform:none}}
.page-in .phead h1{animation:wipe 1.1s cubic-bezier(.2,.75,.2,1) .15s both}
@keyframes wipe{from{clip-path:inset(0 100% 0 0);transform:translateX(-12px)}to{clip-path:inset(0 0 0 0);transform:none}}
.ccards .ccard,.entry,.photos figure{will-change:transform}
.ccards.roomy .ccard:hover .tag{width:6px}
.ccard .tag{transition:width .3s}
.entry em{transition:transform .3s}
.entry:hover em{transform:translateX(6px)}
@media (max-width:860px){
  .g-head,.g-row{grid-template-columns:96px minmax(0,1fr)}
  .g-head{grid-template-columns:96px repeat(5,minmax(0,1fr))}
  .g-head b{font-size:10px;padding-left:4px}
  .g-name{flex-direction:column;gap:0}
  .g-name b{font-size:14px}
  .g-bar em{display:none}
  .g-legend .mile{margin-left:0}
}
@media (prefers-reduced-motion:reduce){.g-bar{transform:none!important}.g-bar em{opacity:1!important}}
.g-bar.short{overflow:visible}
.g-bar.short em{position:absolute;left:calc(100% + 8px);color:var(--ink)}
.g-bar.short.l em{left:auto;right:calc(100% + 8px)}

/* ---------- 头像 ---------- */
.ava{display:inline-grid;place-items:center;flex:none;width:34px;height:34px;border-radius:50%;overflow:hidden;background:hsl(var(--h,160) 32% 86%);color:hsl(var(--h,160) 35% 30%);font-family:var(--display);font-weight:900;font-size:14px;vertical-align:middle}
.ava img{width:100%;height:100%;object-fit:cover}
.ava.sm{width:22px;height:22px;font-size:11px;margin-right:6px;vertical-align:-4px}
.ava.lg{width:64px;height:64px;font-size:26px;box-shadow:0 0 0 3px var(--paper),0 0 0 4px var(--line)}
.who{display:flex;gap:14px;align-items:center}
.who .meta{margin:0}
.contact{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:12.5px;color:var(--glass);margin-top:2px}

/* ---------- 我的资料 ---------- */
.profile-grid{display:grid;grid-template-columns:300px minmax(0,1fr);gap:28px;margin-top:26px;align-items:start}
.pcard{position:sticky;top:76px;background:var(--ink);color:var(--paper);padding:30px 24px 22px;display:grid;justify-items:center;text-align:center;gap:6px;overflow:hidden;isolation:isolate}
.pcard::before{content:"";position:absolute;inset:-40% -40% auto auto;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(200,85,61,.55),transparent 70%);z-index:-1;animation:floaty 9s ease-in-out infinite alternate}
.pcard::after{content:"";position:absolute;inset:auto auto -30% -30%;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle,rgba(63,143,136,.5),transparent 70%);z-index:-1;animation:floaty 11s ease-in-out infinite alternate-reverse}
@keyframes floaty{to{transform:translate(-30px,40px) scale(1.15)}}
.pc-ava{width:112px;height:112px;border-radius:50%;overflow:hidden;background:rgba(255,255,255,.12);display:grid;place-items:center;box-shadow:0 0 0 4px rgba(255,255,255,.14);margin-bottom:8px}
.pc-ava img{width:100%;height:100%;object-fit:cover;animation:popIn .6s cubic-bezier(.2,.8,.2,1.2)}
.pc-ava span{font-family:var(--display);font-weight:900;font-size:44px;color:rgba(255,255,255,.8)}
@keyframes popIn{from{transform:scale(.6);opacity:0}to{transform:none;opacity:1}}
.pcard b{font-family:var(--display);font-size:24px;font-weight:900}
.pcard .mono{color:rgba(255,255,255,.6)}
.pcard ul{list-style:none;margin:14px 0 0;padding:14px 0 0;border-top:1px solid rgba(255,255,255,.15);display:grid;gap:6px;width:100%;text-align:left;font-size:13px;word-break:break-all}
.pcard ul i{font-style:normal;display:inline-block;width:22px;color:var(--coral)}
.pcard ul em{color:rgba(255,255,255,.35);font-style:normal}
.pc-note{font-size:11.5px;color:rgba(255,255,255,.45);margin-top:8px}
.pcard.saved{animation:saved .8s ease}
@keyframes saved{30%{transform:scale(1.03);box-shadow:0 0 0 6px rgba(63,143,136,.35)}}
.avup{display:flex;gap:14px;align-items:center}
.avup small{color:var(--mute);font-size:12px}
.avdrop{flex:none;width:84px;height:84px;border-radius:50%;border:1px dashed var(--mute);display:grid;place-items:center;cursor:pointer;overflow:hidden;font-size:12px;color:var(--mute);transition:border-color .2s,background .2s}
.avdrop:hover{border-color:var(--glass);background:var(--tint)}
.avdrop img{width:100%;height:100%;object-fit:cover}
.roster-t{margin-top:48px}
.rt-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:8px}
.rt{display:grid;grid-template-columns:auto minmax(0,1fr);gap:4px 10px;align-items:center;background:var(--card);border:1px solid var(--line);padding:10px 12px}
.rt .ava.sm{width:34px;height:34px;font-size:14px;margin:0;grid-row:span 2}
.rt b{font-family:var(--display);font-size:15px}.rt small{display:block;font-family:var(--mono);font-size:10.5px;color:var(--mute)}
.rt-c{grid-column:2;display:grid;font-size:12px;color:var(--glass);word-break:break-all}
.rt.empty-r{opacity:.55}

/* ---------- 优秀作品展厅 ---------- */
.w-bar{display:flex;justify-content:space-between;align-items:center;margin:4px 0 16px}
.w-rule{font-size:12.5px;color:var(--paper);background:var(--coral);padding:3px 10px;border-radius:999px}
.gallery{columns:3 260px;column-gap:14px}
.gallery button{all:unset;display:block;break-inside:avoid;margin-bottom:14px;position:relative;overflow:hidden;cursor:zoom-in;background:var(--tint);animation:rvIn .9s cubic-bezier(.2,.75,.2,1) both;animation-delay:calc(var(--ri,0) * 80ms)}
.gallery button:focus-visible{outline:2px solid var(--glass);outline-offset:3px}
.gallery img{display:block;width:100%;height:auto;transition:transform 1s cubic-bezier(.2,.7,.2,1),filter .6s}
.gallery button:hover img{transform:scale(1.05);filter:brightness(.9)}
.gallery .score{position:absolute;top:12px;right:12px;background:var(--paper);color:var(--ink);font-size:11px;padding:4px 9px 4px 8px;border-radius:999px;box-shadow:0 4px 12px rgba(0,0,0,.12)}
.gallery .score b{font-family:var(--display);font-size:16px;color:var(--coral);margin-right:1px}
.gallery .cap{position:absolute;left:0;right:0;bottom:0;padding:40px 14px 12px;background:linear-gradient(transparent,rgba(10,14,12,.7));color:#fff;display:grid;transform:translateY(30%);opacity:.0;transition:transform .45s cubic-bezier(.2,.7,.2,1),opacity .35s}
.gallery button:hover .cap,.gallery button:focus-visible .cap{transform:none;opacity:1}
.gallery .cap .mono{color:rgba(255,255,255,.75);font-size:10.5px}
.gallery .cap strong{font-family:var(--display);font-size:17px}

/* ---------- 全局细节动效 ---------- */
.sprog{position:fixed;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--glass),var(--coral));transform-origin:left;transform:scaleX(0);z-index:60;pointer-events:none}
nav.top{transition:box-shadow .3s,background .3s}
nav.top.scrolled{box-shadow:0 6px 20px -12px rgba(0,0,0,.25)}
.btn{position:relative;overflow:hidden;isolation:isolate}
.btn::before{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);transform:translateX(-120%);transition:transform .7s;z-index:-1;pointer-events:none}
.btn:hover::before{transform:translateX(120%)}
.cband img{will-change:translate}
.cband .lbl{animation:lblIn .9s cubic-bezier(.2,.75,.2,1) .1s both}
@keyframes lblIn{from{transform:translateY(24px);opacity:0}to{transform:none;opacity:1}}
.ctabs a{position:relative}
.stu{transition:background .2s,transform .25s cubic-bezier(.2,.7,.2,1),box-shadow .25s}
.stu:hover{transform:translateY(-2px);box-shadow:0 10px 20px -14px rgba(0,0,0,.35);z-index:1}
@media (max-width:860px){
  .profile-grid{grid-template-columns:minmax(0,1fr)}
  .pcard{position:static}
}
@media (prefers-reduced-motion:reduce){.pcard::before,.pcard::after{animation:none}.gallery button{animation:none}}

/* ---------- 登录 / 注册 ---------- */
.loginbtn{flex:none;font:inherit;font-size:13px;display:inline-flex;align-items:center;gap:2px;padding:6px 14px;border:1px solid var(--ink);background:var(--ink);color:var(--paper);border-radius:999px;cursor:pointer;white-space:nowrap;transition:background .25s,color .25s,transform .25s}
.loginbtn:hover{transform:translateY(-1px);background:var(--coral);border-color:var(--coral)}
.loginbtn.signed{background:var(--card);color:var(--ink);border-color:var(--line);padding:4px 12px 4px 5px}
.loginbtn.signed .ava.sm{margin-right:6px;vertical-align:0}
#loginDlg{border:0;padding:0;background:var(--paper);color:var(--ink);width:min(460px,calc(100vw - 32px));box-shadow:0 30px 80px -20px rgba(0,0,0,.45)}
#loginDlg[open]{animation:dlgIn .45s cubic-bezier(.2,.8,.2,1)}
@keyframes dlgIn{from{transform:translateY(24px) scale(.97);opacity:0}to{transform:none;opacity:1}}
#loginDlg::backdrop{background:rgba(20,25,23,.5);backdrop-filter:blur(4px)}
.lg-head{position:relative;padding:26px 26px 14px;background:var(--ink);color:var(--paper);overflow:hidden}
.lg-head::after{content:"";position:absolute;right:-60px;top:-60px;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,rgba(200,85,61,.6),transparent 70%);animation:floaty 8s ease-in-out infinite alternate}
.lg-head .mono{color:rgba(255,255,255,.6)}
.lg-head h3{font-size:26px;font-weight:900;margin-top:4px}
.lg-x{position:absolute;right:6px;top:4px;min-width:44px;min-height:44px;z-index:1;border:0;background:none;color:var(--paper);font-size:22px;cursor:pointer}
.lg-tabs{position:relative;display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line)}
.lg-tabs button{font:inherit;font-size:14px;border:0;background:none;color:var(--mute);padding:12px;cursor:pointer}
.lg-tabs button.on{color:var(--ink);font-weight:500}
.lg-tabs i{position:absolute;bottom:-1px;left:0;width:50%;height:2px;background:var(--coral);transition:transform .35s cubic-bezier(.2,.8,.2,1)}
.lg-tabs button:nth-child(2).on ~ i{transform:translateX(100%)}
.lg-pane{padding:22px 26px 26px;display:grid;gap:14px}
.lg-tip{font-size:13.5px;color:var(--mute)}
.lg-f{display:grid;gap:4px;font-size:13px;color:var(--mute)}
.lg-f select{font:inherit;font-size:14px;padding:9px 10px;border:1px solid var(--line);background:var(--card);color:var(--ink)}
.lg-act{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.lg-me{display:flex;gap:16px;align-items:center}
.lg-me b{font-family:var(--display);font-size:22px;font-weight:900;display:block}
.lg-me p{font-size:13px;color:var(--mute);margin-top:4px}
#loginDlg .err{color:var(--coral);font-size:13px;min-height:1em}
@media (max-width:860px){.loginbtn{padding:5px 10px;font-size:12px}.loginbtn.signed{padding:3px 9px 3px 3px}}
#pGender{width:max-content}
#pGender button{padding:7px 22px}

/* ---------- 删除 / 撤回 ---------- */
.delbtn{font:inherit;font-size:12.5px;border:1px solid transparent;background:none;color:var(--mute);padding:5px 10px;cursor:pointer;transition:color .2s,background .2s,border-color .2s}
.delbtn:hover{color:var(--coral);border-color:color-mix(in srgb,var(--coral) 40%,transparent)}
.delbtn.sm{font-size:11px;padding:1px 6px;margin-left:8px;vertical-align:1px}
.delbtn.armed,.hidebtn.armed{background:var(--coral);color:#fff;border-color:var(--coral);animation:shake .4s}
@keyframes shake{25%{transform:translateX(-3px)}75%{transform:translateX(3px)}}
.d-act{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.smine{grid-column:1/-1}
.mine-sub{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;border:1px dashed var(--glass);background:var(--tint);padding:10px 14px;font-size:13.5px}
.gallery .hidebtn{position:absolute;top:12px;left:12px;font-size:11.5px;background:rgba(20,25,23,.72);color:#fff;padding:4px 10px;border-radius:999px;opacity:0;transform:translateY(-4px);transition:opacity .25s,transform .25s;cursor:pointer}
.gallery button:hover .hidebtn,.gallery .hidebtn.armed,.gallery .hidebtn:focus{opacity:1;transform:none}
#pRestore{align-self:flex-end;margin-bottom:8px}
.gallery .hidebtn{z-index:2}.gallery .score{z-index:2}
.gate{max-width:560px;margin:48px auto 24px;text-align:center;display:grid;justify-items:center;gap:12px;padding:40px 28px;border:1px solid var(--line);background:var(--card)}
.gate h2{font-size:26px;font-weight:900}
.gate p{color:var(--mute);font-size:14px}
/* 课程画像页 */
.cband .lbl .en{display:block;font-family:var(--mono,monospace);font-size:12px;letter-spacing:.08em;text-transform:uppercase;opacity:.8;margin-bottom:4px}
.facts strong small{font-size:.6em;color:var(--mute);margin:0 2px}
.hsplit{display:flex;height:8px;margin-top:18px;gap:3px}
.hsplit i{display:block;border-radius:2px;transform-origin:left;animation:hsgrow .9s cubic-bezier(.2,.7,.2,1) both}
.hsplit .th,.hs-l .th{background:var(--glass,#5a6fa8)}.hsplit .pr,.hs-l .pr{background:#c8553d}
.hsplit .pr{animation-delay:.15s}
@keyframes hsgrow{from{transform:scaleX(0)}}
.hs-l{display:flex;gap:18px;font-size:12px;color:var(--mute);margin-top:8px}
.hs-l i{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:6px;vertical-align:-1px}
.cintro{font-size:16px;line-height:1.9;max-width:62em}
.cgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:28px}
.cpanel{border:1px solid var(--line);background:var(--card);padding:20px 22px}
.cpanel h4{font-size:17px;font-weight:900;display:flex;justify-content:space-between;align-items:baseline;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.cpanel h4 .mono{font-weight:400;font-size:11px;color:var(--mute)}
.reqbars,.dimbars{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.reqbars li,.dimbars li{display:grid;grid-template-columns:9.5em 1fr 2.4em;align-items:center;gap:10px;font-size:13px}
.dimbars li{grid-template-columns:12em 1fr 2.6em}
.dimbars li span b{color:var(--c);margin-right:6px}
.reqbars li.off{color:var(--mute);opacity:.55}
.reqbars li>b,.dimbars li>b{display:block;height:8px;background:var(--tint);border-radius:4px;overflow:hidden}
.reqbars li>b i,.dimbars li>b i{display:block;height:100%;width:var(--w);background:#3f8f88;border-radius:4px;transform-origin:left;animation:hsgrow 1s cubic-bezier(.2,.7,.2,1) both}
.dimbars li>b i{background:var(--c)}
.reqbars li:nth-child(n) i{animation-delay:calc(var(--ri,0)*.05s)}
.reqbars em,.dimbars em{font-style:normal;font-weight:700;font-size:12px;text-align:right}
.szrow{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px}
.szrow>div{border:1px solid var(--line);padding:14px 12px;opacity:.45;transition:opacity .3s,transform .3s}
.szrow>div.on{opacity:1;background:var(--card);border-color:#c8553d;box-shadow:inset 0 3px 0 #c8553d}
.szrow>div.on:hover{transform:translateY(-3px)}
.szrow strong{display:block;font-size:17px;font-weight:900;margin:4px 0}
.szrow p{font-size:12px;color:var(--mute);line-height:1.6}
@media (max-width:860px){.cgrid{grid-template-columns:1fr}.szrow{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:520px){.szrow{grid-template-columns:repeat(2,minmax(0,1fr))}.reqbars li{grid-template-columns:8em 1fr 2em}.dimbars li{grid-template-columns:8.5em 1fr 2.4em}.dimbars li span{font-size:12px}.dimbars li span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}
.exbar{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin:18px 0 6px;padding:12px 16px;border:1px solid var(--line);background:var(--card)}
.exbar #exStat{flex:1;min-width:200px;color:var(--mute)}
.exbar .btn svg{margin-right:6px;vertical-align:-3px}
.pend-a{font-size:13px;font-weight:700;color:#c8553d;text-decoration:none;border-bottom:1px solid currentColor}
.gnote{border-left:3px solid #c4932f;background:var(--card);padding:10px 14px;font-size:14px;color:var(--ink);margin:0 0 14px}
.pend{margin-top:40px}
.pend-list{display:grid;gap:8px}
.pd{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;padding:12px 14px;border:1px solid var(--line);background:var(--card);border-left:3px solid #c4932f}
.pd b{display:block;font-size:16px}
.pd small{display:block;font-size:12px;color:var(--mute)}
.pd small em{font-style:normal;color:#c8553d}
.pd-act{display:flex;gap:8px;align-items:center}
.pend-tag{display:inline-block;font-size:12px;font-weight:700;color:#9a6a12;background:#f6ead0;padding:2px 10px;border-radius:99px;margin:6px 0}
.ava.wait{animation:pulsewait 1.8s ease-in-out infinite}
@keyframes pulsewait{50%{box-shadow:0 0 0 6px rgba(196,147,47,.18)}}
.subbox .warn{display:block;color:#c8553d;font-size:12px;margin-top:4px}
@media (max-width:560px){.pd{grid-template-columns:auto 1fr}.pd-act{grid-column:1/-1}}
.curtain.solo i{filter:brightness(calc(1.1 - var(--d)*.05))}

.curtain.radar i{position:absolute;left:50%;top:50%;width:260vmax;height:260vmax;margin:-130vmax 0 0 -130vmax;background:var(--g);clip-path:polygon(50% 0,100% 38%,82% 100%,18% 100%,0 38%);transform:scale(0)}
.curtain.radar.run i{animation:radar 1s cubic-bezier(.65,0,.25,1) both}
@keyframes radar{0%{transform:scale(0) rotate(-72deg);opacity:1}42%{transform:scale(1) rotate(0);opacity:1}60%{transform:scale(1) rotate(0);opacity:1}100%{transform:scale(1.15) rotate(8deg);opacity:0}}
.curtain.door i{transform:none}
.curtain.door.run i:first-of-type{animation:doorL .95s cubic-bezier(.7,0,.2,1) both}
.curtain.door.run i:nth-of-type(2){animation:doorR .95s cubic-bezier(.7,0,.2,1) both}
@keyframes doorL{0%{transform:translateX(-100%)}42%,58%{transform:translateX(0)}100%{transform:translateX(-100%)}}
@keyframes doorR{0%{transform:translateX(100%)}42%,58%{transform:translateX(0)}100%{transform:translateX(100%)}}

/* 四年能力路线动画 */
.route ol.rline{position:relative}
.route ol.rline li{border-left:0}
.route ol.rline::before,.route ol.rline::after{content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;background:var(--line)}
.route ol.rline::after{background:linear-gradient(var(--glass),var(--glass) 70%,var(--coral));transform:scaleY(0);transform-origin:top}
.route.rv.in ol.rline::after{animation:rgrow 2s cubic-bezier(.5,0,.2,1) .3s both}
@keyframes rgrow{to{transform:scaleY(1)}}
.route ol.rline li::before{left:-5px;z-index:1;transform:scale(0);transition:background .3s,box-shadow .3s}
.route.rv.in ol.rline li::before{animation:rdot .6s cubic-bezier(.3,1.6,.5,1) both;animation-delay:calc(.35s + var(--i)*.5s)}
@keyframes rdot{0%{transform:scale(0)}60%{transform:scale(1.35);box-shadow:0 0 0 8px color-mix(in srgb,var(--glass) 25%,transparent)}100%{transform:scale(1);box-shadow:0 0 0 0 transparent}}
.route ol.rline li>*{opacity:0;transform:translateX(-10px)}
.route.rv.in ol.rline li>*{animation:rtext .7s cubic-bezier(.2,.75,.2,1) both;animation-delay:calc(.45s + var(--i)*.5s)}
.route.rv.in ol.rline li>b{animation-delay:calc(.52s + var(--i)*.5s)}
.route.rv.in ol.rline li>small{animation-delay:calc(.6s + var(--i)*.5s)}
@keyframes rtext{to{opacity:1;transform:none}}
.route.rv.in ol.rline li:last-child::before{animation:rdot .6s cubic-bezier(.3,1.6,.5,1) 1.85s both,rpulse 2.4s ease-out 2.6s infinite}
@keyframes rpulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--coral) 45%,transparent)}100%{box-shadow:0 0 0 12px transparent}}
.route ol.rline li{transition:background .25s}
.route ol.rline li:hover{background:var(--tint)}
.route ol.rline li:hover::before{background:var(--glass)}
.route ol.rline li:last-child:hover::before{background:var(--coral)}
.rchain span,.rchain em{display:inline-block;opacity:0;transform:translateY(6px)}
.rchain em{font-style:normal;margin:0 4px}
.rchain span{font-weight:700}
.route.rv.in .rchain span,.route.rv.in .rchain em{animation:rtext .5s ease both;animation-delay:calc(2.3s + var(--i)*.28s)}
.route.rv.in .rchain em{animation-delay:calc(2.16s + var(--i)*.28s)}
@media (prefers-reduced-motion:reduce){.route ol.rline::after{transform:none}.route ol.rline li::before,.route ol.rline li>*,.rchain span,.rchain em{opacity:1;transform:none;animation:none!important}}
/* GSAP 接管后的样式 */
.gs .page-in .phead h1{animation:none}
.gs .photos figure.rv.in img,.gs .route.rv.in img,.gs .ai-fig.rv.in img{animation:none}
.ch{display:inline-block;will-change:transform}
.phead h1,.cband h1{overflow:hidden;padding-bottom:.06em}
.gs h3.sub{position:relative;padding-bottom:8px}
.gs h3.sub::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:linear-gradient(90deg,var(--glass),var(--coral));transform:scaleX(var(--ul,0));transform-origin:left}
.gs .facts>div.rv{opacity:1;transform:none;transition:none}
/* ECharts 图表 */
.echart{width:100%;min-height:300px}
.rbox{aspect-ratio:1/0.92;min-height:320px}
.echart.wide{height:300px}
.trend{margin-top:22px;border-top:1px solid var(--line);padding-top:14px}
.trend .echart{height:230px;min-height:0}
.cdist{margin-top:44px}
.cdist .echart{border:1px solid var(--line);background:var(--card)}
/* PDF 预览 */
#pdfDlg{width:min(1180px,96vw);height:92vh;max-height:92vh;padding:0;border:1px solid var(--line);background:var(--paper);color:var(--ink);display:flex;flex-direction:column}
#pdfDlg:not([open]){display:none}
#pdfDlg::backdrop{background:rgba(20,25,23,.55);backdrop-filter:blur(3px)}
.pv-head{display:flex;align-items:center;gap:14px;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--card)}
.pv-head>div{flex:1;min-width:0}.pv-head b{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pv-head .lg-x{position:static}
.pv-body{flex:1;overflow:auto;padding:16px;display:grid;justify-items:center;gap:16px;background:var(--tint)}
.pv-page{margin:0;box-shadow:0 6px 24px rgba(0,0,0,.12);background:#fff;animation:pageIn .5s ease both}
.pv-page canvas{display:block;max-width:100%;height:auto}
.pv-page figcaption{font-size:11px;color:#888;text-align:center;padding:4px 0}
@media (max-width:560px){.pv-head{flex-wrap:wrap}#pdfDlg{height:96vh;max-height:96vh}}
.pv-head .lg-x{color:var(--ink);font-size:26px;background:none;border:0;cursor:pointer;line-height:1}
.gs .photos figure{overflow:hidden}
/* 教师起步（空库） */
.tstart{border:1px solid var(--line);border-left:4px solid var(--glass);padding:14px 18px;margin:0 0 20px;background:var(--card)}
.tstart h3{font-size:16px;margin:0 0 8px}
.tstart ol{margin:0;padding-left:1.4em;line-height:1.8;font-size:14px}
.tstart a{text-decoration:underline}
/* 移动端点击区域 ≥44px（小屏） */
@media (max-width:480px){
  main .btn,main .dimtabs button,main .seg button,main .ttabs button,.lg-tabs button,#loginDlg .btn{min-height:44px}
  main .linkbtn,#loginDlg .linkbtn{min-height:44px;display:inline-flex;align-items:center}
  main select,main input[type=text],main input[type=search],main input[type=email],main input[type=tel],#loginDlg input,#loginDlg select{min-height:44px;font-size:16px}
}
/* 全局减少动画偏好 */
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}html{scroll-behavior:auto}}