@font-face{font-family:Jakarta;src:url('/assets/PlusJakartaSans-Variable.ttf') format('truetype');font-weight:200 800;font-display:swap}
@font-face{font-family:NotoSub;src:url('/assets/NotoSansSC-subset.woff2') format('woff2');font-weight:100 900;font-display:swap}

/* Layout: app shell — fixed left rail (nav) + scrolling work area; student record = header + module tabs. */
:root{
  --bg:#F9F7F4; --surface:#FFFFFF; --surface-2:#F2F0EC; --ink:#0B2545; --ink-2:#33465E; --muted:#667386;
  --line:#E4E2DD; --line-strong:#CBD3DD; --navy:#0B2545; --navy-60:#4D6B8F; --navy-20:#D6E0EB; --select:#E9EFF6;
  --accent:#E1062D; --accent-soft:#FBE3E8; --on-accent:#FFFFFF; --on-navy:#FFFFFF;
  --ok:#1E7A52; --ok-soft:#DFF1E7; --warn:#A35F00; --warn-soft:#FBEBD3; --crit:#C4122F; --crit-soft:#FBE3E8;
  --logo-ink:#0B2545; --shadow:0 10px 30px rgba(11,37,69,.12);
  --f-display:Jakarta,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",NotoSub,"Noto Sans SC",system-ui,sans-serif;
  --f-body:Jakarta,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",NotoSub,"Noto Sans SC",system-ui,sans-serif;
  --r:6px;
}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]){
  --bg:#08131F; --surface:#0E1C2C; --surface-2:#132538; --ink:#E7ECF2; --ink-2:#C3CDD9; --muted:#8E9CAE;
  --line:#1F3247; --line-strong:#2C4560; --navy:#2B4F7A; --navy-60:#7E9BBE; --navy-20:#1C3452; --select:#17304B;
  --accent:#FF4D69; --accent-soft:#3A1520; --on-accent:#FFFFFF; --on-navy:#FFFFFF;
  --ok:#52C68E; --ok-soft:#123326; --warn:#F0AE4A; --warn-soft:#352610; --crit:#FF6B82; --crit-soft:#3A1520;
  --logo-ink:#FFFFFF; --shadow:0 10px 30px rgba(0,0,0,.45); color-scheme:dark }}
:root[data-theme="dark"]{
  --bg:#08131F; --surface:#0E1C2C; --surface-2:#132538; --ink:#E7ECF2; --ink-2:#C3CDD9; --muted:#8E9CAE;
  --line:#1F3247; --line-strong:#2C4560; --navy:#2B4F7A; --navy-60:#7E9BBE; --navy-20:#1C3452; --select:#17304B;
  --accent:#FF4D69; --accent-soft:#3A1520; --on-accent:#FFFFFF; --on-navy:#FFFFFF;
  --ok:#52C68E; --ok-soft:#123326; --warn:#F0AE4A; --warn-soft:#352610; --crit:#FF6B82; --crit-soft:#3A1520;
  --logo-ink:#FFFFFF; --shadow:0 10px 30px rgba(0,0,0,.45); color-scheme:dark }

*{box-sizing:border-box}
html,body{height:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:14px;line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{font-family:var(--f-display);font-weight:600;letter-spacing:-.01em;text-wrap:balance}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}
.muted{color:var(--muted)}
.logo{display:block;height:auto}
.logo-dark{display:none}
@media (prefers-color-scheme: dark){ .logo-light{display:none} .logo-dark{display:block} }
.logo path{fill:var(--logo-ink)}
.logo path.red{fill:#E1062D}

/* shell */
.shell{display:grid;grid-template-columns:236px minmax(0,1fr);min-height:100%}
.rail{background:var(--surface);border-right:1px solid var(--line);padding:20px 16px;display:flex;flex-direction:column;gap:20px;position:sticky;top:env(safe-area-inset-top,0px);height:100vh;overflow:auto}
.rail .logo{width:150px;margin:2px 4px 0}
.rail-sub{font-size:11px;letter-spacing:.14em;color:var(--muted);margin:-10px 6px 0;text-transform:uppercase}
.nav{display:flex;flex-direction:column;gap:2px}
.nav-label{font-size:11px;letter-spacing:.12em;color:var(--muted);padding:12px 10px 6px}
.nav button{all:unset;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 10px;border-radius:var(--r);color:var(--ink-2);font-size:14px}
.nav button:hover{background:var(--surface-2)}
.nav button[aria-current="true"]{background:var(--select);color:var(--ink);font-weight:600}
.nav button:focus-visible{outline:2px solid var(--accent)}
.nav .count{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.nav .count.hot{color:var(--accent);font-weight:600}
.rail-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;font-size:12px;color:var(--muted)}
.who{display:flex;align-items:center;gap:10px;padding:10px;border:1px solid var(--line);border-radius:var(--r)}
.avatar{width:30px;height:30px;border-radius:50%;background:var(--navy);color:var(--on-navy);display:grid;place-items:center;font-size:13px;font-weight:600;flex-shrink:0}
.avatar.sm{width:24px;height:24px;font-size:11px}
.who b{display:block;color:var(--ink);font-weight:600;font-size:13px}

.main{min-width:0;display:flex;flex-direction:column}
.topbar{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:12px;padding:10px 28px;flex-wrap:wrap}
.demo-tag{font-size:12px;color:var(--warn);background:var(--warn-soft);padding:3px 10px;border-radius:999px;white-space:nowrap}
.topbar .spacer{flex:1}
.seg{display:inline-flex;border:1px solid var(--line-strong);border-radius:999px;padding:2px;background:var(--surface)}
.seg button{all:unset;cursor:pointer;padding:5px 14px;border-radius:999px;font-size:13px;color:var(--ink-2);white-space:nowrap}
.seg button[aria-pressed="true"]{background:var(--ink);color:var(--bg);font-weight:600}
.seg button:focus-visible{outline:2px solid var(--accent)}
select.pick{border:1px solid var(--line-strong);background:var(--surface);border-radius:999px;padding:5px 12px;font-size:13px}
.search{position:relative;width:min(360px,100%)}
.search input{width:100%;border:1px solid var(--line-strong);background:var(--surface);border-radius:999px;padding:7px 14px;font-size:13px}
.results{position:absolute;top:calc(100% + 6px);left:0;right:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);z-index:30;max-height:360px;overflow:auto;padding:4px}
.results button{all:unset;box-sizing:border-box;cursor:pointer;width:100%;display:flex;justify-content:space-between;align-items:center;gap:10px;padding:8px 10px;border-radius:4px;font-size:13px}
.results button:hover,.results button.active{background:var(--select)}
.results small{color:var(--muted);font-size:12px}
.results .none{padding:10px;color:var(--muted);font-size:13px}
.content{padding:28px;display:flex;flex-direction:column;gap:24px;max-width:1360px;width:100%}

/* generic */
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap}
.page-head h1{font-size:26px;line-height:1.3}
.page-head p{color:var(--muted);margin-top:4px}
.eyebrow{font-size:11px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase;font-weight:600}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);min-width:0}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.panel-head h2{font-size:15px}
.panel-head .sub{font-size:12px;color:var(--muted);font-weight:400;margin-left:8px}
.panel-intro{font-size:12px;color:var(--muted);margin-top:2px}
.panel-body{padding:16px 18px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.grid-3{display:grid;grid-template-columns:1.4fr 1fr;gap:20px}
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line-strong);background:var(--surface);border-radius:var(--r);padding:6px 12px;font-size:13px;color:var(--ink);white-space:nowrap}
.btn:hover{border-color:var(--ink)}
.btn.primary{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.btn.primary:hover{opacity:.9}
.btn.ghost{border-color:transparent;background:transparent;color:var(--muted)}
.btn.ghost:hover{color:var(--ink)}
.btn.sm{padding:3px 9px;font-size:12px}
.link{all:unset;cursor:pointer;color:var(--ink);font-weight:600;border-bottom:1px solid var(--line-strong)}
.link:hover{border-color:var(--accent)}
.link:focus-visible{outline:2px solid var(--accent)}
.small-link{font-size:11px;color:var(--muted);margin-top:3px}
.pill{display:inline-flex;align-items:center;gap:5px;font-size:12px;line-height:1.4;padding:2px 9px;border-radius:999px;white-space:nowrap;background:var(--surface-2);color:var(--ink-2)}
.pill::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.75}
.pill.plain::before{display:none}
.pill.ok{background:var(--ok-soft);color:var(--ok)}
.pill.warn{background:var(--warn-soft);color:var(--warn)}
.pill.crit{background:var(--crit-soft);color:var(--crit)}
.pill.info{background:var(--select);color:var(--navy-60)}
.pill.line-lang{background:var(--select);color:var(--ink-2)}
.pill.line-admit{background:var(--accent-soft);color:var(--crit)}
.pill.line-academic,.pill.academic{background:var(--surface-2);color:var(--navy-60);border:1px solid var(--line)}
.tags{display:flex;gap:6px;flex-wrap:wrap}
.empty{padding:28px 18px;color:var(--muted);text-align:center}
.note-private{font-size:12px;color:var(--warn);display:inline-flex;gap:6px;align-items:center}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
.stat{padding:16px 18px;min-width:0}
.stat+.stat{border-left:1px solid var(--line)}
.stat .v{font-size:28px;font-weight:600;font-family:var(--f-display);line-height:1.2;font-variant-numeric:tabular-nums}
.stat .v small{font-size:14px;color:var(--muted);font-weight:500;margin-left:4px}
.stat .l{font-size:12px;color:var(--muted)}
.stat .d{font-size:12px;margin-top:6px;color:var(--ink-2)}
.stat .d .hot{color:var(--accent);font-weight:600}

/* tables */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th{font-size:11px;letter-spacing:.06em;color:var(--muted);font-weight:600;text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap;background:var(--surface)}
td{padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}
tbody tr.click{cursor:pointer}
tbody tr.click:hover{background:var(--surface-2)}
td.pre{white-space:pre-line}
.bar{height:6px;background:var(--surface-2);border-radius:999px;overflow:hidden;min-width:80px}
.bar i{display:block;height:100%;background:var(--navy-60);border-radius:999px}
.bar.accent i{background:var(--accent)}

/* lists */
.list{display:flex;flex-direction:column}
.row{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:12px;align-items:start;padding:12px 18px;border-bottom:1px solid var(--line)}
.row:last-child{border-bottom:0}
.row .t{font-weight:600}
.row .s{font-size:12px;color:var(--muted)}
.time{font-size:12px;font-variant-numeric:tabular-nums;color:var(--ink-2);min-width:84px;padding-top:1px}
.stripe{width:3px;align-self:stretch;border-radius:2px;background:var(--line-strong)}
.stripe.crit{background:var(--crit)}.stripe.warn{background:var(--warn)}.stripe.info{background:var(--navy-60)}.stripe.ok{background:var(--ok)}

/* student header + tabs */
.s-head{display:flex;gap:18px;align-items:flex-start;justify-content:space-between;flex-wrap:wrap}
.s-id{display:flex;gap:14px;align-items:center;min-width:0}
.s-id .avatar{width:48px;height:48px;font-size:18px}
.s-id h1{font-size:24px}
.s-meta{color:var(--muted);font-size:13px;margin-top:2px}
.facts{display:flex;gap:28px;flex-wrap:wrap}
.facts div{min-width:0}
.facts span{display:block;font-size:11px;color:var(--muted);letter-spacing:.06em}
.facts b{font-weight:600;font-size:14px}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);overflow-x:auto;scrollbar-width:none}
.tabs button{all:unset;cursor:pointer;padding:10px 12px;font-size:14px;color:var(--muted);border-bottom:2px solid transparent;white-space:nowrap;display:flex;gap:6px;align-items:center}
.tabs button:hover{color:var(--ink)}
.tabs button[aria-selected="true"]{color:var(--ink);border-color:var(--accent);font-weight:600}
.tabs button:focus-visible{outline:2px solid var(--accent)}
.tabs .k{font-size:10px;padding:1px 6px;border-radius:999px}
.tabs .k.lang{background:var(--select);color:var(--navy-60)}
.tabs .k.admit{background:var(--accent-soft);color:var(--crit)}
.tabs .k.course{background:var(--surface-2);color:var(--navy-60)}

/* key-value */
.kv{display:grid;grid-template-columns:120px minmax(0,1fr);gap:8px 16px;font-size:13px}
.kv dt{color:var(--muted)}
.kv dd{margin:0}

/* tasks */
.check{appearance:none;width:18px;height:18px;border:1.5px solid var(--line-strong);border-radius:4px;display:grid;place-items:center;margin:2px 0 0;cursor:pointer;background:var(--surface)}
.check:checked{background:var(--ok);border-color:var(--ok)}
.check:checked::after{content:"";width:5px;height:9px;border:solid var(--on-accent);border-width:0 2px 2px 0;transform:rotate(45deg) translate(-1px,-1px)}
.task-done .t{color:var(--muted);text-decoration:line-through;text-decoration-color:var(--line-strong)}

/* week calendar */
.calendar-head{align-items:center}
.calendar-controls{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.month-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
.month-grid{display:grid;grid-template-columns:repeat(7,minmax(120px,1fr));min-width:840px}
.month-weekdays{border-bottom:1px solid var(--line);background:var(--surface-2)}
.month-weekdays div{padding:7px 10px;font-size:11px;color:var(--muted);font-weight:600;text-align:right}
.month-day{min-height:132px;padding:8px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-width:0}
.month-day:nth-child(7n){border-right:0}
.month-day:nth-last-child(-n+7){border-bottom:0}
.month-day.outside{background:color-mix(in srgb,var(--surface-2) 55%,var(--surface))}
.month-day.outside .month-date{opacity:.45}
.month-day.today{box-shadow:inset 0 0 0 2px var(--accent)}
.month-date{display:flex;justify-content:flex-end;align-items:baseline;gap:5px;margin-bottom:5px;color:var(--ink-2)}
.month-date span{font-size:13px;font-weight:600;font-variant-numeric:tabular-nums}
.month-date small{font-size:10px;color:var(--muted)}
.month-events{display:flex;flex-direction:column;gap:3px}
.month-event{all:unset;box-sizing:border-box;display:grid;grid-template-columns:auto minmax(0,1fr);gap:4px 6px;width:100%;cursor:default;border-left:3px solid var(--navy-60);background:var(--select);padding:3px 5px;border-radius:3px;font-size:10px;line-height:1.35;color:var(--ink)}
button.month-event{cursor:pointer}
button.month-event:hover{outline:1px solid var(--navy-60)}
button.month-event:focus-visible{outline:2px solid var(--accent)}
.month-event span{color:var(--muted);font-variant-numeric:tabular-nums}
.month-event b{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.month-event i{grid-column:2;font-style:normal;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.month-event.meeting{border-color:var(--ok);background:var(--ok-soft)}
.month-event.deadline{border-color:var(--crit);background:var(--crit-soft)}
.month-more{font-size:10px;color:var(--muted);padding-left:7px}
.week{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--r);background:var(--surface);overflow:hidden}
.day{border-right:1px solid var(--line);min-height:260px;display:flex;flex-direction:column;min-width:0}
.day:last-child{border-right:0}
.day-h{padding:10px 10px 8px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:baseline;font-size:12px;color:var(--muted)}
.day-h b{font-size:18px;color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums}
.day.today .day-h{background:var(--accent-soft)}
.day.today .day-h b{color:var(--crit)}
.day-b{padding:8px;display:flex;flex-direction:column;gap:6px}
.ev{border-radius:4px;padding:6px 8px;font-size:12px;line-height:1.45;border-left:3px solid var(--navy-60);background:var(--select);min-width:0}
.ev b{display:block;font-weight:600;font-size:12px;overflow-wrap:anywhere}
.ev .tm{font-variant-numeric:tabular-nums;color:var(--muted)}
.ev.meeting{border-color:var(--ok);background:var(--ok-soft)}
.ev.deadline{border-color:var(--crit);background:var(--crit-soft)}

/* gantt */
.gantt-wrap{overflow-x:auto}
.gantt{min-width:820px;position:relative}
.g-months{display:grid;margin-left:150px;border-bottom:1px solid var(--line)}
.g-months div{white-space:nowrap;overflow:hidden;font-size:11px;color:var(--muted);padding:6px 0 6px 6px;border-left:1px solid var(--line);font-variant-numeric:tabular-nums}
.g-months div.y{color:var(--ink);font-weight:600}
.g-row{display:grid;grid-template-columns:150px minmax(0,1fr);align-items:center;border-bottom:1px solid var(--line);min-height:52px}
.g-row:last-child{border-bottom:0}
.g-lab{font-size:13px;font-weight:600;padding-right:12px}
.g-track{position:relative;height:52px}
.g-out{position:absolute;font-size:12px;line-height:26px;color:var(--ink-2);white-space:nowrap;font-weight:500}
.g-bar{position:absolute;top:13px;height:26px;border-radius:4px;font-size:12px;padding:3px 8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;background:var(--navy-20);color:var(--ink);border:1px solid transparent}
.g-bar.done{background:var(--surface-2);color:var(--muted);text-decoration:line-through;text-decoration-color:var(--line-strong)}
.g-bar.now{background:var(--navy);color:var(--on-navy)}
.g-bar.next{background:transparent;border:1px dashed var(--line-strong);color:var(--ink-2)}
.g-today{position:absolute;top:0;bottom:0;width:0;border-left:2px solid var(--accent);z-index:2;pointer-events:none}
.g-today span{position:absolute;top:-1px;left:4px;font-size:11px;color:var(--accent);font-weight:600;white-space:nowrap;background:var(--surface);padding:0 4px}
.g-ms{position:absolute;top:17px;width:16px;height:16px;transform:translateX(-8px) rotate(45deg);background:var(--accent);border:2px solid var(--surface);z-index:1}
.g-ms.done{background:var(--muted)}
.g-ms i{position:absolute;inset:0;transform:rotate(-45deg);font-style:normal;font-size:9px;color:var(--on-accent);display:grid;place-items:center;font-weight:700}
.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:12px;color:var(--muted)}
.legend span{display:inline-flex;align-items:center;gap:6px}
.sw{width:18px;height:10px;border-radius:2px;background:var(--navy-20);display:inline-block}
.sw.done{background:var(--surface-2);border:1px solid var(--line-strong)}
.sw.now{background:var(--navy)}
.sw.next{border:1px dashed var(--line-strong)}
.ms-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px}
.ms-item{display:grid;grid-template-columns:22px minmax(0,1fr);gap:10px;align-items:start;font-size:13px}
.ms-n{width:22px;height:22px;border-radius:50%;background:var(--accent);color:var(--on-accent);font-size:11px;font-weight:700;display:grid;place-items:center}
.ms-n.done{background:var(--muted)}

/* phase stepper */
.phases{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(120px,1fr);gap:0;overflow-x:auto}
.phase{position:relative;padding:22px 12px 4px 0;font-size:13px}
.phase::before{content:"";position:absolute;top:7px;left:0;right:0;height:2px;background:var(--line-strong)}
.phase::after{content:"";position:absolute;top:2px;left:0;width:12px;height:12px;border-radius:50%;background:var(--surface);border:2px solid var(--line-strong)}
.phase.done::before,.phase.done::after{background:var(--navy-60);border-color:var(--navy-60)}
.phase.now::after{background:var(--accent);border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.phase.now::before{background:linear-gradient(90deg,var(--navy-60) 0 12px,var(--line-strong) 12px)}
.phase b{display:block;font-weight:600}
.phase span{font-size:12px;color:var(--muted)}
.phase.now b{color:var(--crit)}

/* chart */
.chart svg{width:100%;height:auto;display:block}
.chart .grid{stroke:var(--line);stroke-width:1}
.chart .axis{fill:var(--muted);font-size:11px;font-family:var(--f-body)}
.chart .target{stroke:var(--accent);stroke-dasharray:4 4;stroke-width:1.5;fill:none}
.chart .target-l{fill:var(--accent);font-size:11px;font-weight:600;font-family:var(--f-body)}
.chart .line{fill:none;stroke:var(--ink);stroke-width:2}
.chart .area{fill:var(--navy-20);opacity:.6}
.chart .dot{fill:var(--surface);stroke:var(--ink);stroke-width:2}
.chart .dot.last{fill:var(--ink)}
.chart .val{fill:var(--ink);font-size:11px;font-weight:600;font-family:var(--f-body)}

/* kanban (essays) */
.board{display:grid;grid-template-columns:repeat(5,minmax(200px,1fr));gap:12px;overflow-x:auto;padding-bottom:4px}
.col{background:var(--surface-2);border-radius:var(--r);padding:10px;display:flex;flex-direction:column;gap:8px;min-width:0}
.col-h{display:flex;justify-content:space-between;font-size:12px;font-weight:600;color:var(--ink-2);padding:2px 4px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:10px 12px;display:flex;flex-direction:column;gap:6px;font-size:13px}
.card .t{font-weight:600}
.card .s{font-size:12px;color:var(--muted)}
.card select{font-size:12px;border:1px solid var(--line);border-radius:4px;padding:2px 4px;background:var(--surface)}

/* evidence */
.ev-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px}
.evc{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;display:flex;flex-direction:column;gap:10px;min-width:0}
.evc h3{font-size:15px}
.evc dl{display:grid;grid-template-columns:64px minmax(0,1fr);gap:6px 12px;margin:0;font-size:13px}
.evc dt{color:var(--muted)}
.evc dd{margin:0;overflow-wrap:anywhere}
.evc .foot{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:10px}

/* modal */
.scrim{position:fixed;inset:0;background:rgba(5,14,26,.45);z-index:50;display:grid;place-items:center;padding:16px}
.modal{background:var(--surface);border-radius:8px;box-shadow:var(--shadow);width:min(560px,100%);max-height:calc(100% - 32px);overflow:auto;border:1px solid var(--line)}
.modal.wide{width:min(860px,100%)}
.modal-h{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--surface);z-index:1}
.modal-h h2{font-size:16px}
.modal-b{padding:18px 20px;display:flex;flex-direction:column;gap:14px}
.modal-f{display:flex;justify-content:flex-end;gap:8px;padding:14px 20px;border-top:1px solid var(--line)}
.field{display:flex;flex-direction:column;gap:5px;font-size:13px}
.field label{color:var(--ink-2);font-weight:500}
.field input,.field select,.field textarea{border:1px solid var(--line-strong);border-radius:var(--r);padding:8px 10px;background:var(--surface);width:100%}
.field textarea{min-height:76px;resize:vertical}
.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.fields .full{grid-column:1/-1}

/* feedback card (parent-facing) */
.fb-card{background:#FFFFFF;color:#0B2545;border:1px solid #E4E2DD;border-radius:4px;padding:26px 28px;display:flex;flex-direction:column;gap:18px}
.fb-card .logo path{fill:#0B2545}
.fb-card .logo path.red{fill:#E1062D}
.fb-top{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;border-bottom:2px solid #0B2545;padding-bottom:14px}
.fb-top h3{font-size:18px;color:#0B2545}
.fb-top .d{font-size:13px;color:#4D6B8F;font-variant-numeric:tabular-nums}
.fb-meta{display:flex;gap:24px;flex-wrap:wrap;font-size:13px}
.fb-meta span{color:#667386;margin-right:6px}
.fb-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:#E4E2DD;border:1px solid #E4E2DD}
.fb-grid div{background:#FFFFFF;padding:12px 14px;font-size:13px;line-height:1.75;white-space:pre-line;min-width:0}
.fb-grid h4{font-size:12px;color:#E1062D;letter-spacing:.06em;margin-bottom:4px;font-weight:600}
.fb-grid .wide-cell{grid-column:1/-1}
.fb-foot{font-size:11px;color:#667386;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* login */
.login{min-height:100%;display:grid;grid-template-columns:1fr 1fr;background:var(--bg)}
.login-art{background:#0B2545;color:#FFFFFF;padding:48px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.login-art .logo path{fill:#FFFFFF}
.login-art .logo path.red{fill:#E1062D}
.login-art h2{font-size:30px;line-height:1.4;max-width:420px;font-weight:500}
.login-art p{color:#AFC0D4;max-width:400px;margin-top:12px}
.orbit{position:absolute;right:-160px;bottom:-200px;width:560px;height:560px;border:1px solid rgba(255,255,255,.18);border-radius:50%}
.orbit.o2{right:-60px;bottom:-120px;width:380px;height:380px;border-style:dashed}
.orbit-dot{position:absolute;width:10px;height:10px;border-radius:50%;background:#E1062D;right:300px;bottom:338px}
.login-form{display:grid;place-items:center;padding:32px 16px}
.login-box{width:min(380px,100%);display:flex;flex-direction:column;gap:16px}
.login-box h1{font-size:24px}
.hint{font-size:12px;color:var(--muted);background:var(--surface-2);border-radius:var(--r);padding:10px 12px}

.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:9px 16px;border-radius:999px;font-size:13px;z-index:60;box-shadow:var(--shadow)}

@media (max-width:1100px){ .grid-3{grid-template-columns:1fr} .board{grid-template-columns:repeat(5,220px)} }
@media (max-width:860px){
  .search{order:-1;width:100%}
  .shell{grid-template-columns:1fr}
  .rail{position:static;height:auto;flex-direction:row;flex-wrap:wrap;align-items:center;padding:12px 16px;gap:10px;border-right:0;border-bottom:1px solid var(--line)}
  .rail .logo{width:120px}
  .rail-sub,.rail-foot,.nav-label{display:none}
  .nav{flex-direction:row;overflow-x:auto;width:100%;gap:4px;scrollbar-width:none}
  .nav button{white-space:nowrap;padding:6px 10px}
  .topbar{padding:10px 16px}
  .content{padding:18px 16px}
  .grid-2{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat:nth-child(3){border-left:0}
  .stat:nth-child(n+3){border-top:1px solid var(--line)}
  .week{grid-template-columns:1fr}
  .day{border-right:0;border-bottom:1px solid var(--line);min-height:0}
  .day-b:empty::after{content:"无安排";font-size:12px;color:var(--muted)}
  .fields{grid-template-columns:1fr}
  .login{grid-template-columns:1fr}
  .login-art{padding:28px 20px;min-height:220px}
  .kv{grid-template-columns:96px minmax(0,1fr)}
  .fb-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ---- portal additions ---- */
body{margin:0}
.beta{display:inline-flex;align-items:center;font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--on-accent);background:var(--accent);border-radius:3px;padding:1px 6px;vertical-align:middle;text-transform:uppercase}
.rail-brand{display:flex;flex-direction:column;gap:8px}
.rail-brand .logo{width:150px}
.rail-actions{display:flex;gap:6px;flex-wrap:wrap}
.secret{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:20px;letter-spacing:.06em;background:var(--surface-2);padding:10px 14px;border-radius:var(--r);display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.err{color:var(--crit);font-size:13px;min-height:1.2em}
.loading{display:grid;place-items:center;min-height:100%;color:var(--muted)}
.sample{font-size:11px;padding:1px 7px;border-radius:999px;background:var(--warn-soft);color:var(--warn);vertical-align:middle;font-weight:500}
.btn.danger{color:var(--crit);border-color:var(--crit)}
.btn.danger.armed{background:var(--crit);color:var(--on-accent)}
.modal-f .spacer{flex:1}
.checks{display:flex;flex-wrap:wrap;gap:8px 16px}
.checks label{display:inline-flex;gap:6px;align-items:center;font-weight:400}
.checks input{width:auto}
button.g-bar{font:inherit;font-size:12px;cursor:pointer;text-align:left}
button.g-bar:hover{outline:2px solid var(--accent)}
.ms-item button{all:unset;cursor:pointer}
.ms-item button:hover b{color:var(--accent)}
.edit-btn{all:unset;cursor:pointer;color:var(--muted);font-size:12px;padding:2px 6px;border-radius:4px}
.edit-btn:hover{color:var(--ink);background:var(--surface-2)}
.edit-btn:focus-visible{outline:2px solid var(--accent)}
.audit td{font-size:12px}
.login-art .logo{width:190px}
.fb-card .logo{width:170px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.pre-line{white-space:pre-line}
.right{text-align:right;display:flex;flex-direction:column;align-items:flex-end;gap:2px}
.small{font-size:12px}
.late{color:var(--crit);font-weight:600}
.nowrap{white-space:nowrap}
.w90{min-width:90px}.w140{min-width:140px}.w150{min-width:150px}.w160{min-width:160px}.w210{min-width:210px}.w260{min-width:260px}
div.w160,.bar.w160{width:160px;min-width:0}
.h18{font-size:18px}
.bt{border-top:1px solid var(--line)}
.mt8{margin-top:8px}
.btn-block{justify-content:center;padding:10px}
.login-foot{font-size:13px}
.login-foot a{color:#AFC0D4;text-decoration:none}
.login-foot a:hover{color:#FFFFFF}
.login-form.full{min-height:100%}
.fb-title{text-align:right}
.evc-h{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}
.g-body{position:relative}
.sw-class{background:var(--select);border-left:3px solid var(--navy-60)}
.sw-meet{background:var(--ok-soft);border-left:3px solid var(--ok)}
.sw-dl{background:var(--crit-soft);border-left:3px solid var(--crit)}
.sw-ms{background:var(--accent);width:10px;height:10px;transform:rotate(45deg)}
.field .label{color:var(--ink-2);font-weight:500}
.field[hidden]{display:none}
.btn:disabled{opacity:.45;cursor:not-allowed}
.task-lanes{display:flex;flex-direction:column;gap:28px}
.task-lane{display:flex;flex-direction:column;gap:12px}
.lane-title{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;border-left:4px solid var(--navy-60);padding:2px 0 2px 12px}
.lane-title.admit{border-color:var(--accent)}
.lane-title.academic{border-color:var(--line-strong)}
.lane-title div{display:flex;flex-direction:column}
.lane-title span{font-size:18px;font-weight:650}
.lane-title small{color:var(--muted)}
.lane-title b{font-size:12px;color:var(--muted);font-weight:500}
.task-tags{margin:4px 0 3px}
.task-tags .pill{font-size:10px;padding:0 6px}
.score-summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border:1px solid var(--line);background:var(--surface);border-radius:var(--r)}
.score-summary>div{display:grid;grid-template-columns:auto 1fr;gap:2px 18px;align-items:end;padding:16px 18px}
.score-summary>div+div{border-left:1px solid var(--line)}
.score-summary span{font-size:12px;color:var(--muted)}
.score-summary b{grid-row:1/3;grid-column:2;font-size:32px;line-height:1;text-align:right}
.score-summary small{font-size:12px;color:var(--ink-2)}
.import-drop{border:1px dashed var(--line-strong);background:var(--surface-2);padding:18px;border-radius:var(--r);display:flex;flex-direction:column;gap:10px}
.import-drop label{display:flex;flex-direction:column;gap:2px}
.import-drop label span,.import-note small{font-size:12px;color:var(--muted)}
.import-drop input{font-size:13px}
.import-note{display:grid;grid-template-columns:auto 1fr;gap:2px 14px;padding:12px 14px;border-left:3px solid var(--navy-60);background:var(--select)}
.import-note small{grid-column:2}
.import-note.apple{border-color:var(--accent)}
.import-note a{color:var(--ink);font-weight:600;margin-left:6px}
.import-preview{max-height:360px;border:1px solid var(--line)}
.import-preview th{position:sticky;top:0;z-index:1}
.loading-line{color:var(--navy-60);font-size:13px}
.empty.compact{padding:16px}
.secret-cell{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-weight:700;letter-spacing:.04em;white-space:nowrap}
.apple-settings{padding:2px 0}
.import-summary{display:flex;gap:8px;flex-wrap:wrap}
.import-summary span{border:1px solid var(--line);background:var(--surface-2);padding:7px 10px;border-radius:var(--r);font-size:12px;color:var(--muted)}
.import-summary b{color:var(--ink);font-size:15px;margin-right:3px}
.apple-preview{max-height:360px;border:1px solid var(--line)}
.apple-preview th{position:sticky;top:0;z-index:1}
.apple-preview table{min-width:650px}
.course-mapping{border:1px solid var(--line);background:var(--surface-2);padding:14px;border-radius:var(--r);display:flex;flex-direction:column;gap:10px}
.mapping-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 12px}
.mapping-grid label{display:grid;grid-template-columns:minmax(90px,1fr) minmax(150px,1.25fr);align-items:center;gap:8px;font-size:12px}
.mapping-grid label>span{font-weight:600;overflow-wrap:anywhere}
.mapping-grid select,.inline-select{border:1px solid var(--line-strong);background:var(--surface);border-radius:var(--r);padding:5px 8px;font-size:12px;max-width:100%}
.course-hours table{min-width:900px}
.course-hours td:first-child{min-width:170px}
.course-hours td:nth-child(2){min-width:120px}
.course-hours .pill{min-width:58px;justify-content:center}
.course-actions{display:flex;flex-direction:column;align-items:flex-start;margin-top:4px}
.billing-history-row{background:color-mix(in srgb,var(--surface-2) 45%,var(--surface))}
.billing-history-row td{color:var(--ink-2)}
.current-billing-row td{border-top:1px solid var(--line-strong)}
.month-ledger-head,.monthly-close{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.monthly-summary span{min-width:108px}
.monthly-ledger-table{max-height:390px;border:1px solid var(--line)}
.monthly-ledger-table table{min-width:700px}
.monthly-ledger-table th{position:sticky;top:0;z-index:1}
.monthly-close{border-top:1px solid var(--line);padding-top:14px}
.attendance-leave,.attendance-cancelled{opacity:.62}
.attendance-leave b,.attendance-cancelled b{text-decoration:line-through;text-decoration-color:var(--line-strong)}
.panel-head+.list,.list+.panel-head{border-top:0}
.list+.panel-head{border-top:1px solid var(--line)}
.ev .edit-btn{align-self:flex-start;padding:0;margin-top:2px}
.ev{display:flex;flex-direction:column}
.s-id h1 .muted{font-size:15px;font-weight:500}
.tags .bar{flex:1}
.card .tags select{flex:1}
a.link{text-decoration:none}
#app{min-height:100vh}
.login{min-height:100vh}
@media (max-width:860px){
  .rail-foot{display:flex;flex-direction:row;margin:0;width:100%;justify-content:flex-end}
  .rail-foot .who{display:none}
  .rail{position:relative}
  .rail-foot{position:absolute;top:12px;right:16px;width:auto}
  .score-summary{grid-template-columns:1fr}
  .score-summary>div+div{border-left:0;border-top:1px solid var(--line)}
  .mapping-grid{grid-template-columns:1fr}
  .mapping-grid label{grid-template-columns:1fr}
}

.nav .vocab-link{display:block;text-decoration:none;color:inherit;padding:10px 12px;border-radius:var(--r)}.nav .vocab-link:hover{background:var(--select)}