@font-face{font-family:HarmonyOS;src:url(/fonts/harmonyos-sans/HarmonyOS_Sans_SC_Regular.ttf);font-weight:400;font-display:swap}@font-face{font-family:HarmonyOS;src:url(/fonts/harmonyos-sans/HarmonyOS_Sans_SC_Medium.ttf);font-weight:500 600;font-display:swap}@font-face{font-family:HarmonyOS;src:url(/fonts/harmonyos-sans/HarmonyOS_Sans_SC_Bold.ttf);font-weight:700 900;font-display:swap}:root{--bg:#d9ecff;--ink:#101828;--text:#26344f;--muted:#667085;--blue:#2f7df6;--brand:#2f7df6;--green:#0f9f6e;--red:#d92d20;--radius:20px;--surface-clear:#fff6;--surface-frost:#fff6;--material-blur:20px;--surface-solid:#f8fcfff0;--line:#79a2ce4d;--fill:linear-gradient(135deg, var(--surface-frost), var(--surface-clear));--highlight:inset 0 1px 0 #ffffffb8;--shadow:0 12px 30px #28538a1c, 0 2px 6px #28538a0d;--action:linear-gradient(180deg, #3986fa, #2f7df6 58%, #2974ec);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}[data-theme=dark]{--bg:#0d192a;--ink:#f0f6ff;--text:#d7e2f1;--muted:#afbdd0;--brand:#87b5ff;--green:#49d6a8;--red:#ff9288;--surface-clear:#162a4540;--surface-frost:#1a304c9e;--surface-solid:#142439f7;--line:#9dc1ea38;--highlight:inset 0 1px 0 #d5eeff5c;--shadow:0 12px 32px #0004, 0 2px 6px #0002;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box;scrollbar-width:thin;scrollbar-color:transparent transparent}.is-scrolling{scrollbar-color:var(--blue) transparent}@supports selector(::-webkit-scrollbar){*,.is-scrolling{scrollbar-width:auto;scrollbar-color:auto}::-webkit-scrollbar{width:4px;height:4px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-corner{background:0 0}::-webkit-scrollbar-thumb{background:0 0;border-radius:999px}.is-scrolling::-webkit-scrollbar-thumb{background:var(--blue)}}html{-webkit-tap-highlight-color:transparent}body{min-height:100vh;color:var(--text);background:var(--bg);isolation:isolate;margin:0;font:14px/1.6 HarmonyOS,system-ui,sans-serif}body:before{content:"";z-index:-1;pointer-events:none;background:linear-gradient(#e9f5ff33,#c9e2fa33),url(/ui/ice-silk.webp) 50%/cover;position:fixed;inset:0}[data-theme=dark] body:before{background-image:linear-gradient(#09182ddd,#10233ddd),url(/ui/ice-silk.webp)}h1,h2,h3,p{margin-top:0}h1{letter-spacing:-.025em;color:var(--ink);margin-bottom:12px;font-size:clamp(28px,3.2vw,44px);line-height:1.22}h2{color:var(--ink);margin:0;font-size:20px;line-height:1.4}h3{font-size:16px}p{margin-bottom:12px}.eyebrow{color:var(--muted);letter-spacing:.12em;text-transform:uppercase;margin-bottom:9px;font-size:11px;font-weight:600}.lead{color:var(--muted);max-width:56ch;font-size:16px;line-height:1.9}.caption,.empty,small{color:var(--muted);font-size:12px;line-height:1.7}.empty{text-align:center;border:1px dashed var(--line);border-radius:20px;padding:24px}.form-error,.error-text{color:var(--red);overflow-wrap:anywhere}.form-error{background:#d92d2010;border-radius:12px;margin:0;padding:10px 14px}code{overflow-wrap:anywhere;color:var(--ink);font:500 12px/1.7 ui-monospace,monospace}a{color:var(--brand)}.login-card,.student-topbar,.panel,.student-card,.metric,.sidebar,.page-header,.feature-grid>div,.node-card,.student-row,.session-row,.info-block,.student-status,.log-row,.price-row,.history-row,.notice{background:var(--fill);border:1px solid var(--line);box-shadow:var(--highlight), var(--shadow);-webkit-backdrop-filter:blur(var(--material-blur)) saturate(145%);backdrop-filter:blur(var(--material-blur)) saturate(145%);border-radius:20px}button,input,select{font:inherit;color:inherit}button,a.ghost-action,a.glass-button,.upload-button{border:1px solid var(--line);background:var(--fill);min-height:38px;box-shadow:var(--highlight), 0 3px 9px #2a62a610;cursor:pointer;border-radius:999px;justify-content:center;align-items:center;gap:8px;padding:8px 16px;font-size:13px;font-weight:500;text-decoration:none;transition:box-shadow .18s ease-out,transform .18s ease-out;display:inline-flex;position:relative}button:after,a.ghost-action:after,a.glass-button:after,.upload-button:after{content:"";pointer-events:none;border-radius:inherit;opacity:0;background:radial-gradient(circle 80px at var(--gx,50%) var(--gy,50%), #2f7df661, #2f7df61f 45%, transparent 75%);transition:opacity .22s ease-out;position:absolute;inset:0}.glow-active:after{opacity:1}button:disabled{opacity:.45;cursor:not-allowed}button:disabled:after{display:none}button:active:not(:disabled),a.ghost-action:active{transform:translateY(1px)scale(.98)}button:focus{outline:none}button:focus-visible,a:focus-visible{outline:1px solid var(--brand);outline-offset:3px}.primary-action,button.primary{background:var(--action);color:#fff;border-color:#2870dd;box-shadow:inset 0 1px #ffffff70,inset 0 -1px #103d891f,0 5px 12px #276bcd29}.primary-action:after{background:radial-gradient(circle 80px at var(--gx,50%) var(--gy,50%), #ffffff8c, #fff3 42%, transparent 75%)}button.danger{color:var(--red);background:#d92d2010}.theme-toggle{flex-shrink:0;width:42px;height:42px;padding:0;font-size:22px}@media (hover:hover){button:hover:not(:disabled),a.ghost-action:hover,.upload-button:hover{box-shadow:var(--highlight), inset 0 0 0 100vmax #ffffff16, 0 6px 14px #26487026}}input:not([type=file]):not([type=checkbox]):not([type=radio]),.select-trigger{border:1px solid var(--line);background:var(--fill);width:100%;height:46px;min-height:46px;color:var(--ink);box-shadow:var(--highlight), 0 4px 12px #28508008;border-radius:999px;outline:none;min-width:0;padding:12px 15px;font-size:14px;line-height:20px}input:focus{border-color:var(--brand)}.glass-check{color:var(--text);cursor:pointer;align-items:flex-start;gap:10px;padding:8px 0;line-height:24px;display:flex}.glass-check input[type=checkbox]{appearance:none;background:var(--fill);cursor:pointer;border:1px solid #8ba7c7;border-radius:6px;flex:0 0 20px;place-content:center;width:20px;height:20px;min-height:20px;margin:2px 0 0;padding:0;display:inline-grid;box-shadow:inset 0 1px 1px #fff6}.glass-check input:checked{background:var(--action);border-color:#2870dd;box-shadow:inset 0 1px #ffffff70,0 3px 8px #276bcd29}.glass-check input:checked:after{content:"✓";color:#fff;font-size:14px;line-height:1}.glass-check input:focus-visible{outline:2px solid var(--brand);outline-offset:3px}.glass-check:has(input:disabled){opacity:.4;cursor:not-allowed}.glass-check input:disabled{cursor:not-allowed}@media (hover:hover){.glass-check:hover input:not(:disabled){border-color:var(--brand)}}input[aria-invalid=true]{border-color:var(--red)}input::placeholder{color:var(--muted);opacity:.8}input[type=number]{appearance:textfield}input::-webkit-inner-spin-button{appearance:none;margin:0}input::-webkit-outer-spin-button{appearance:none;margin:0}.number-field{min-width:0;position:relative}.number-field input{padding-right:46px}.number-actions{gap:2px;display:grid;position:absolute;top:5px;bottom:5px;right:7px}.number-actions button{width:28px;height:17px;min-height:0;box-shadow:none;background:0 0;border:0;padding:0}.chevron{border-bottom:1.7px solid;border-right:1.7px solid;flex-shrink:0;width:8px;height:8px;margin:0 3px;display:inline-block;transform:rotate(45deg)}.chevron.up{transform:rotate(225deg)}.select-trigger{text-align:left;justify-content:space-between;display:flex}.select-trigger[aria-expanded=true] .chevron{transform:rotate(225deg)}.select-field,.date-field{min-width:0}.select-options,.date-popover{border:1px solid var(--line);background:var(--surface-solid);color:var(--text);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);border-radius:20px;max-height:260px;margin:0;padding:6px;position:fixed;inset:auto;overflow:auto}.select-options::backdrop,.date-popover::backdrop{background:0 0}.select-options button{width:100%;box-shadow:none;text-align:left;background:0 0;border:0;border-radius:20px;justify-content:space-between;min-height:40px;margin:2px 0}.select-options button[aria-selected=true]{color:var(--brand);background:#669ee526;font-weight:600}.date-popover{width:min(328px,100vw - 16px);max-height:calc(100dvh - 16px);padding:14px}.date-popover header,.date-popover footer{justify-content:space-between;align-items:center;gap:10px;display:flex}.date-popover header button{width:34px;padding:0}.calendar-grid{grid-template-columns:repeat(7,1fr);gap:4px;margin:12px 0;display:grid}.calendar-grid small{text-align:center}.calendar-grid button{min-height:32px;box-shadow:none;background:0 0;border:0;padding:0}.calendar-grid button[aria-pressed=true]{background:var(--action);color:#fff}.time-fields{justify-content:center;align-items:center;gap:8px;margin:12px 0;display:flex}.time-fields .number-field{width:92px}.date-popover footer{justify-content:flex-end}.global-tools{z-index:20;position:fixed;top:20px;right:24px}.login-shell{grid-template-columns:1.2fr .8fr;align-items:center;gap:28px;width:min(1100px,100% - 48px);min-height:100dvh;margin:auto;padding:70px 0;display:grid}.hero-card{background:var(--surface-clear);padding:44px}.auth-card{padding:32px}.feature-grid{grid-template-columns:1fr 1fr;gap:12px;margin-top:32px;display:grid}.feature-grid>div{box-shadow:var(--highlight);background:var(--surface-clear);padding:16px}.feature-grid b,.feature-grid span{display:block}.feature-grid b{margin-bottom:6px}.feature-grid span{color:var(--muted);font-size:12px}.portal-label{color:var(--brand);margin-bottom:24px;font-size:20px;font-weight:600}.form-stack{gap:16px;margin-top:16px;display:grid}.form-stack label{align-content:start;gap:8px;display:grid}.form-stack label>span{font-size:13px;font-weight:500}.form-stack>.primary-action{justify-self:start;min-width:120px}.auth-card .primary-action{width:100%}.auth-card{--login-control-gap:16px}.auth-card .form-stack{gap:var(--login-control-gap)}.login-help-actions{margin-top:var(--login-control-gap);justify-content:flex-end;display:flex}.confirmation-dialog.admin-editor.student-detail-dialog{width:min(1080px,100vw - 32px)}.student-detail-dialog .student-overview{width:100%;min-width:0;padding:0}.student-detail-identity{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.auth-card>.caption{margin-top:16px}.glass-actions,.ui-kit-link{flex-wrap:wrap;gap:10px;margin-top:20px;display:flex}.app-shell{grid-template-columns:220px minmax(0,1fr);gap:24px;max-width:1600px;min-height:100dvh;margin:auto;padding:24px;display:grid}.sidebar{flex-direction:column;gap:20px;height:calc(100dvh - 48px);padding:22px 14px;display:flex;position:sticky;top:24px}.brand{padding:0 10px}.brand span{color:var(--muted);letter-spacing:.12em;font-size:11px}.brand b{color:var(--ink);margin-top:8px;font-size:24px;display:block}.sidebar nav{gap:6px;display:grid}.sidebar nav button{width:100%;box-shadow:none;background:0 0;border:0;border-radius:20px;justify-content:flex-start;padding:12px 16px}.sidebar nav button.active{color:var(--brand);background:#669ee526;font-weight:600}.sidebar-link{margin-top:auto}.sidebar-toast{background:var(--surface-solid);overflow-wrap:anywhere;border:1px solid #d99b2733;border-radius:20px;padding:16px 34px 16px 14px;font-size:12px;position:relative}.sidebar-toast button{width:24px;min-height:24px;box-shadow:none;border:0;padding:0;position:absolute;top:4px;right:4px}.workspace{min-width:0;padding-bottom:32px}.page-header,.student-header{justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px;padding:22px 26px;display:flex}.page-header h1,.student-header h1{margin:0;font-size:30px}.page-header .eyebrow{margin-bottom:5px}.panel-title{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px;display:flex}.metric-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:18px 0;display:grid}.metric-grid.single{grid-template-columns:repeat(3,minmax(0,1fr))}.metric{min-width:0;padding:20px}.metric>span{color:var(--muted);font-size:12px}.metric>b{color:var(--ink);overflow-wrap:anywhere;font-variant-numeric:tabular-nums;margin-top:12px;font-size:clamp(22px,2.2vw,32px);font-weight:600;line-height:1.4;display:block}.panel{padding:24px}.wide-panel{margin-top:18px}.two-column{grid-template-columns:1fr;gap:18px;display:grid}.inline-form,.class-form,.password-form,.log-filter-form,.price-form{grid-template-columns:repeat(3,minmax(0,1fr));align-items:start;gap:12px;margin:20px 0;display:grid}.log-filter-form,.price-form{grid-template-columns:repeat(4,minmax(0,1fr))}.field-label{min-width:0;color:var(--muted);align-content:start;gap:7px;font-size:12px;display:grid}.toolbar-row,.row-actions{flex-wrap:wrap;gap:8px;margin:14px 0;display:flex}.row-actions{grid-column:1/-1;margin-bottom:0}.row-actions button{min-height:34px;padding:6px 12px;font-size:12px}.session-actions{align-items:center}.session-actions button{white-space:nowrap;flex:none;height:36px;min-height:36px}.upload-button input{opacity:0;width:1px;height:1px;position:absolute}.table-list,.node-list,.session-list,.log-list,.price-list,.history-list{gap:12px;margin-top:18px;display:grid}.student-row,.node-card,.session-row,.log-row,.price-row,.history-row{box-shadow:var(--highlight);align-items:center;gap:10px;min-width:0;padding:16px;display:grid}.student-row{grid-template-columns:1fr 1fr auto auto}.node-card{grid-template-columns:auto 1fr auto}.node-card small{overflow-wrap:anywhere;grid-column:2/-1}.session-row{grid-template-columns:auto 1fr auto}.session-row>small{grid-column:1/-1}.student-usage{border-top:1px solid var(--line);color:var(--muted);grid-column:1/-1;grid-template-columns:repeat(4,1fr);gap:8px;padding-top:10px;font-size:12px;display:grid}.student-usage b{color:var(--ink)}.budget-editor,.custom-session-action,.node-concurrency-editor{flex-wrap:wrap;grid-column:1/-1;align-items:end;gap:10px;display:flex}.budget-editor>.number-field,.custom-session-action>.number-field{max-width:160px}.node-concurrency-editor label{color:var(--muted);gap:6px;max-width:230px;font-size:12px;display:grid}.node-actions{grid-column:2/-1}.log-row{grid-template-columns:minmax(120px,1.2fr) repeat(3,minmax(80px,1fr)) repeat(4,auto);font-size:12px}.price-row{text-align:left;border-radius:20px;grid-template-columns:1.2fr 1fr 1fr auto}.history-row{grid-template-columns:1fr;font-size:13px}.settings-title{border-top:1px solid var(--line);margin-top:28px;padding-top:24px}.pill{white-space:nowrap;border-radius:999px;align-items:center;width:fit-content;padding:4px 10px;font-size:12px;font-weight:500;display:inline-flex}.pill-blue{color:var(--brand);background:#2f7df61f}.pill-green{color:var(--green);background:#0f9f6e1a}.pill-red{color:var(--red);background:#d92d2015}.pill-gray{background:var(--surface-frost);color:var(--muted)}.status-dot{background:#98a2b3;border-radius:50%;flex-shrink:0;width:8px;height:8px;display:inline-block}.status-dot.is-active{background:var(--green)}.notice{overflow-wrap:anywhere;margin:16px 0;padding:12px 16px}.student-shell{width:min(1100px,100% - 48px);min-height:calc(100dvh - 128px);margin:64px auto}.student-card{padding:26px}.student-header{border-bottom:1px solid var(--line);padding:0 0 20px}.student-header p{margin:8px 0 0}.student-nav{border:1px solid var(--line);background:var(--surface-solid);border-radius:999px;gap:8px;width:fit-content;max-width:100%;margin:22px 0 28px;padding:6px;display:flex}.student-nav button{box-shadow:none;white-space:nowrap;background:0 0;border:0;min-height:44px}.student-nav button[aria-current=page]{color:var(--brand);background:#669ee526;font-weight:600}#student-content{min-width:0}#student-content>.history-panel{margin-top:0}#student-content li{margin:12px 0;line-height:1.8}.student-next-step{color:var(--muted);margin-top:28px}@media (max-width:600px){.student-nav{gap:4px;width:100%}.student-nav button{flex:1;min-width:0;padding:10px 8px;font-size:14px}}.student-workspace{margin-top:24px}.student-topbar{border-radius:999px;align-items:center;gap:20px;margin-bottom:28px;padding:16px 20px;display:flex}.student-brand{flex-shrink:0;align-items:center;gap:12px;display:flex}.student-brand h1{margin:0;font-size:22px}.student-brand small{color:var(--muted)}.student-brand-mark{background:var(--brand);color:#fff;width:48px;height:48px;box-shadow:var(--highlight);border-radius:20px;place-items:center;font-size:24px;font-weight:800;display:grid}.student-topbar .student-nav{background:0 0;border:0;flex:1;justify-content:center;gap:8px;margin:0;padding:0}.student-topbar .student-logout{flex-shrink:0}.student-header-actions{flex-shrink:0;align-items:center;gap:8px;margin-left:auto;display:flex}.feedback-fields{gap:16px;display:grid}.feedback-fields textarea{resize:vertical;border:1px solid var(--line);background:var(--fill);width:100%;min-height:150px;color:var(--ink);font:inherit;border-radius:20px;padding:14px}.feedback-fields textarea:focus-visible{outline:1px solid var(--brand)}.feedback-content{white-space:pre-wrap;overflow-wrap:anywhere}.course-workspace,.course-list{gap:18px;display:grid}.course-list-item{text-align:left;border-radius:20px;justify-content:space-between;align-items:center;gap:16px;padding:20px;display:flex}.course-header-actions{align-items:center;gap:8px;display:flex}.course-header-actions button{white-space:nowrap}.admin-table-scroll{width:100%;overflow-x:auto}.admin-data-table{border-collapse:collapse;text-align:left;width:100%}.admin-data-table th,.admin-data-table td{border-bottom:1px solid var(--line);vertical-align:middle;text-align:left;padding:16px}.admin-data-table th{color:var(--muted);white-space:nowrap;font-size:13px;font-weight:600}.admin-data-table td{font-size:13px}.admin-data-table .numeric{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}.admin-data-table tbody tr{transition:background .16s}.admin-data-table tbody tr:hover{background:#669ee526}.course-record-table{min-width:680px}.course-record-table td:first-child{overflow-wrap:anywhere;width:40%}.course-record-table td:last-child{white-space:nowrap}.usage-record-table{min-width:1100px}.usage-record-table td:first-child{overflow-wrap:anywhere;min-width:220px;max-width:300px}.usage-record-table td:nth-child(2),.usage-record-table td:nth-child(3){min-width:140px}.usage-record-table td:nth-child(4){min-width:170px}.repeat-fields{grid-column:1/-1;gap:16px;min-width:0;display:grid}.repeat-weekdays{flex-wrap:wrap;gap:12px 20px;display:flex}.repeat-fields .caption{margin:0}.course-member-picker{max-height:320px;overflow:auto}.course-switcher{align-items:center;gap:12px;margin-bottom:16px;display:flex}.course-switcher>span{flex-shrink:0}.course-switcher .select-field{flex:1;min-width:0;max-width:360px}.course-calendar-scroll{overflow-x:auto}.course-calendar{grid-template-columns:repeat(7,minmax(100px,1fr));gap:6px;min-width:700px;display:grid}.course-calendar>b{text-align:center;padding:8px}.course-calendar-day{border:1px solid var(--line);border-radius:12px;min-height:100px;padding:8px}.course-calendar-day button{width:100%;color:var(--brand);text-align:left;border-radius:8px;margin-top:6px;padding:5px;font-size:12px;display:block}.course-calendar-day.muted{opacity:.3}@media (max-width:600px){.course-list-item{flex-direction:column;align-items:flex-start}}@media (max-width:850px){.student-topbar{border-radius:20px;flex-wrap:wrap;gap:20px}.student-topbar .student-nav{flex-basis:100%;order:3;width:100%}.student-topbar .student-logout{margin-left:auto}.student-topbar .student-nav button{flex:1;min-width:0;padding:10px 6px;font-size:13px}}.student-status{box-shadow:none;flex-wrap:wrap;align-items:center;gap:12px;margin:20px 0;padding:16px;display:flex}.student-status>span:last-child{color:var(--muted);font-size:13px}.info-block{box-shadow:none;grid-template-columns:140px minmax(0,1fr) auto;align-items:center;gap:16px;margin:12px 0;padding:18px;display:grid}.info-block>span{color:var(--muted);font-size:12px}.info-block>div{gap:8px;display:flex}.history-panel{margin-top:28px}.password-card{max-width:600px;margin:auto}.form-stack.compact{grid-template-columns:repeat(2,minmax(0,1fr))}.form-stack.compact>.primary-action{align-self:end}@media (max-width:1100px){.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.log-row{grid-template-columns:repeat(4,minmax(0,1fr))}.class-form,.price-form,.log-filter-form{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:760px){.global-tools{top:12px;right:16px}.login-shell{grid-template-columns:1fr;gap:16px;width:calc(100% - 28px);padding:70px 0 24px}.hero-card,.auth-card{padding:24px}.hero-card h1{font-size:30px}.feature-grid{margin-top:20px}.app-shell{padding:14px;display:block}.sidebar{gap:14px;height:auto;margin-bottom:16px;padding:18px;position:relative;top:0}.brand b{font-size:21px}.sidebar nav{display:flex;overflow:auto}.sidebar nav button{flex-shrink:0;width:auto}.sidebar-link{display:none!important}.sidebar>.ghost-action{align-self:flex-end}.page-header{padding:18px}.page-header h1{font-size:24px}.panel{padding:18px}.student-shell{width:calc(100% - 28px);margin:68px auto 20px}.student-card{padding:18px}.student-header{align-items:flex-start}.student-header h1{font-size:26px}.inline-form,.password-form,.form-stack.compact{grid-template-columns:1fr}.student-row,.session-row,.price-row{grid-template-columns:1fr auto}.student-row>code{grid-column:1/-1}.student-usage{grid-template-columns:1fr 1fr}.info-block{grid-template-columns:1fr;gap:8px}.metric-grid.single{grid-template-columns:1fr}.node-card{grid-template-columns:auto 1fr}.node-card>span:not(.status-dot){grid-column:2}.log-row{grid-template-columns:1fr 1fr}.class-form,.price-form,.log-filter-form{grid-template-columns:1fr}.feature-grid>div{padding:12px}.metric{padding:16px}.metric>b{font-size:23px}.student-status{align-items:flex-start}}.class-form,.price-form{align-items:end}.page-header{padding-right:80px}.admin-list-page{min-width:0}.student-table-scroll{margin-top:20px;overflow-x:auto}.student-summary-table{border-collapse:collapse;text-align:left;white-space:nowrap;width:100%}.student-summary-table th,.student-summary-table td{border-bottom:1px solid var(--line);padding:16px}.student-summary-table th{color:var(--muted);font-size:13px;font-weight:500}.student-summary-table tbody tr{cursor:pointer;transition:background .16s}.student-summary-table tbody tr:hover,.student-summary-table tbody tr:focus-within{background:#669ee526}.student-summary-table td:nth-child(n+3),.student-summary-table th:nth-child(n+3){text-align:right;font-variant-numeric:tabular-nums}.student-detail{gap:16px;display:grid}.list-actions{flex-wrap:nowrap;justify-content:flex-start;align-items:center;gap:10px;margin:0 0 16px;padding:4px 0 8px;display:flex;overflow-x:auto}.list-actions>*{white-space:nowrap;flex-shrink:0}.connection-help{border:1px solid var(--line);border-radius:20px;margin:16px 0;padding:14px 18px}.connection-help summary{cursor:pointer;color:var(--brand);font-weight:600}.connection-help summary:hover{opacity:.8}.pointer-feedback{z-index:10000;pointer-events:none;background:var(--surface-solid);max-width:min(280px,100vw - 16px);color:var(--ink);border:1px solid var(--line);box-shadow:var(--shadow);overflow-wrap:anywhere;border-radius:999px;padding:8px 12px;font-size:13px;line-height:1.5;position:fixed}nav[aria-label=接入方式]{width:100%}nav[aria-label=接入方式] button{white-space:normal;flex:1}section[aria-label=API\ 接入]>h3{margin-top:28px}.student-analytics{gap:24px;display:grid}.balance-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;display:grid}.analytics-metrics{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.student-analytics .metric{min-width:0;padding:26px}.student-analytics .metric b{font-variant-numeric:tabular-nums;overflow-wrap:anywhere;font-size:clamp(22px,2.8vw,38px)}.consumption-chart{padding:26px;position:relative}.daily-bars{border-bottom:1px solid var(--line);background:repeating-linear-gradient(to top, transparent 0, transparent calc(50% - 1px), var(--line) calc(50% - 1px), var(--line) 50%);align-items:stretch;height:240px;margin:24px 0 35px 85px;display:flex}.daily-column{flex:1;justify-content:center;align-items:flex-end;min-width:0;display:flex;position:relative}.daily-bar{background:var(--brand);border-radius:5px 5px 0 0;width:70%;max-width:26px;min-height:2px}.daily-column small{white-space:nowrap;color:var(--muted);margin-top:8px;font-size:11px;position:absolute;top:100%}.chart-axis{height:240px;color:var(--muted);flex-direction:column;justify-content:space-between;font-size:11px;display:flex;position:absolute;top:94px;left:26px}@media (max-width:600px){.balance-grid,.analytics-metrics{grid-template-columns:1fr;gap:12px}.student-analytics .metric{padding:20px}.consumption-chart{padding:16px}.daily-bars{margin-left:65px}.chart-axis{font-size:10px;top:84px;left:16px}}.billing-table tbody tr{cursor:default}.student-overview>#student-content>h2,.student-overview h2{margin:0;font-size:18px}.student-overview .student-status{margin:10px 0 14px;padding:10px 14px}.student-overview .student-analytics{gap:12px}.student-overview .student-analytics .panel-title{margin:0}.student-overview .metric{gap:8px;padding:14px 18px}.student-overview .metric b{font-size:25px;line-height:1.2}.student-overview .consumption-chart{padding:16px 20px}.student-overview .daily-bars{height:165px;margin-top:16px;margin-bottom:24px}.student-overview .chart-axis{height:165px;top:65px;left:20px}.daily-bar{flex-direction:column-reverse;display:flex;overflow:hidden}.daily-bar>span{flex-shrink:0;width:100%;display:block}.daily-column.is-highlighted:before{content:"";border-left:1px dashed var(--muted);pointer-events:none;position:absolute;top:0;bottom:0;left:50%}.chart-tooltip{z-index:2;background:var(--surface-solid);width:max-content;max-width:calc(100% - 30px);box-shadow:var(--shadow);border:1px solid var(--line);pointer-events:none;border-radius:20px;padding:16px;font-size:12px;position:absolute;top:75px}.chart-tooltip>div{overflow-wrap:anywhere;justify-content:space-between;gap:20px;margin-bottom:8px;display:flex}.chart-tooltip i{border-radius:2px;width:8px;height:8px;margin-right:6px;display:inline-block}.chart-tooltip small{color:var(--muted)}.student-analytics,.consumption-chart{min-width:0}.chart-scroll{min-width:0;max-width:100%;margin-left:70px;overflow-x:auto}.student-overview .chart-scroll .daily-bars{margin-left:0}.chart-tooltip.following-tooltip{z-index:9999;width:360px;max-width:calc(100vw - 24px);position:fixed;overflow:auto;right:auto!important}@media (min-width:851px) and (max-height:850px){.student-workspace{margin-top:12px}.student-topbar{margin-bottom:14px;padding-top:10px;padding-bottom:10px}.student-overview .metric{padding:10px 16px}.student-overview .daily-bars,.student-overview .chart-axis{height:130px}}@media (max-width:600px){.student-overview .balance-grid{grid-template-columns:1fr 1fr}.student-overview .metric{padding:12px}.student-overview .metric b{font-size:20px}}.billing-table tbody tr:hover{background:0 0}.student-workspace{--student-page-padding:22px;--student-content-gap:14px;--student-card-padding:14px 18px}.student-workspace>.student-card{padding:var(--student-page-padding)}#student-content,#student-content>section{gap:var(--student-content-gap);display:grid}#student-content .course-switcher,#student-content .student-status,#student-content .info-block,#student-content .panel-title,#student-content>section>p{margin:0}#student-content h2{margin:0;font-size:18px}#student-content h3{margin:0}#student-content .student-status,#student-content .info-block,#student-content .metric,#student-content .consumption-chart{padding:var(--student-card-padding)}#student-content .student-analytics,#student-content .balance-grid,#student-content .analytics-metrics{gap:var(--student-content-gap)}#student-content .chart-axis{left:18px}@media (max-width:600px){.student-workspace{--student-page-padding:16px;--student-content-gap:12px;--student-card-padding:12px}#student-content .chart-axis{left:12px}}.student-detail .student-usage{gap:10px;display:grid}.admin-list-page .node-list{grid-template-columns:1fr;display:grid}.confirmation-dialog.admin-editor{width:min(760px,100vw - 32px);max-height:calc(100dvh - 48px);overflow:auto}.admin-editor fieldset{border:0;min-width:0;margin:0;padding:0}.admin-editor .inline-form,.admin-editor .class-form{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}@media (max-width:600px){.admin-editor .inline-form,.admin-editor .class-form,.admin-editor .form-stack.compact{grid-template-columns:1fr}}.confirmation-dialog{border:1px solid var(--line);background:var(--surface-solid);width:min(420px,100vw - 32px);color:var(--text);box-shadow:var(--highlight), var(--shadow);border-radius:20px;padding:26px}.confirmation-dialog::backdrop{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#0b1b363d}.confirmation-dialog p{margin:16px 0 24px}.confirmation-dialog footer{justify-content:flex-end;gap:10px;display:flex}@media (max-width:760px){.page-header{padding-right:18px}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}button:active:not(:disabled){transform:none}}@media (hover:none){button:after,a:after{display:none}}
