:root{color-scheme:light dark;--canvas:#f7f4ec;--surface:#fffdf7;--surface-muted:#eee9dd;--ink:#33312b;--muted:#726d61;--line:#e2ddcf;--gold:#8c692e;--gold-bg:#eadcc0;--primary:#785721;--on-primary:#fffaf0;--danger:#a13c34;--radius:18px;--small-radius:10px;--space:24px;--shadow:0 16px 56px #554b3210;--body:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;--display:"Songti SC","STSong",Georgia,serif}
*{box-sizing:border-box}body{margin:0;background:var(--canvas);color:var(--ink);font:15px/1.65 var(--body)}[hidden]{display:none!important}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--display);font-weight:600;line-height:1.35}h1{font-size:clamp(28px,3vw,39px);letter-spacing:.02em}h2{font-size:24px}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{opacity:.45;cursor:default}button:focus-visible,input:focus-visible,a:focus-visible{outline:3px solid var(--gold);outline-offset:4px}button{min-height:44px;border-radius:var(--small-radius);padding:9px 19px;border:1px solid transparent;white-space:nowrap}input{width:100%;min-height:48px;border:1px solid var(--line);border-radius:var(--small-radius);background:var(--surface);color:var(--ink);padding:11px 14px}input::placeholder{color:var(--muted)}.primary{background:var(--primary);color:var(--on-primary)}.secondary{border-color:var(--line);background:var(--surface);color:var(--ink)}.text-button{background:transparent;color:var(--muted);padding-inline:8px}.muted,.footnote{color:var(--muted)}.footnote{font-size:12px}.eyebrow{font-size:12px;letter-spacing:.15em;color:var(--gold);font-weight:600;margin-bottom:12px}.wordmark{display:flex;align-items:center;gap:12px;font:600 27px var(--display);letter-spacing:.14em}.brand-seal{display:grid;place-items:center;width:40px;height:44px;font-size:25px;border:1px solid var(--gold);border-radius:13px 13px 18px 18px;color:var(--gold);letter-spacing:0}.error{color:var(--danger);background:var(--surface-muted);padding:13px 16px;border-radius:var(--small-radius);overflow-wrap:anywhere}.skip-link{position:fixed;z-index:10;top:-80px;left:16px;background:var(--surface);color:var(--ink);padding:10px}.skip-link:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.login-view{width:min(1020px,100%);margin:0 auto;min-height:100svh;display:grid;grid-template-columns:1fr 420px;align-items:center;gap:100px;padding:48px 32px}.login-intro{position:relative;padding-bottom:150px}.login-intro .wordmark{margin-bottom:70px}.login-intro h1{font-size:clamp(36px,5vw,54px);line-height:1.55}.intro-note{color:var(--muted);margin-top:20px}.botanical{position:absolute;width:175px;height:198px;bottom:-50px;left:105px;opacity:.55;pointer-events:none}.botanical svg{height:100%;width:100%}.botanical path{stroke:var(--gold);stroke-width:1.5}.botanical path+path{fill:var(--gold-bg)}.login-card{background:var(--surface);padding:38px;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.login-card h2{font-size:29px;margin-bottom:9px}.login-card .muted{font-size:13px;margin-bottom:28px}.login-card label{display:block;font-weight:500;font-size:13px;margin:20px 0 7px}.login-card .primary{width:100%;margin:24px 0 18px}.login-card .error{margin-top:16px}.login-card .footnote{text-align:center}
.workspace{min-height:100svh;display:grid;grid-template-columns:212px minmax(0,1fr)}.sidebar{border-right:1px solid var(--line);padding:34px 24px;position:fixed;inset:0 auto 0 0;width:212px;display:flex;flex-direction:column}.sidebar-caption{margin:12px 0 44px 53px;color:var(--muted);font-size:12px}.nav-current{display:flex;gap:12px;align-items:center;color:var(--gold);background:var(--surface-muted);border-radius:var(--small-radius);padding:12px 15px;text-decoration:none;font-weight:600;min-height:48px}.sidebar-bottom{margin-top:auto;color:var(--muted);font-size:11px}.sidebar-bottom p{margin:8px 0 0 13px}.online-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--gold);margin-right:4px}.content-shell{grid-column:2;min-width:0}.topbar{min-height:82px;padding:18px 40px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:12px}.breadcrumb{color:var(--muted)}.admin-session{display:flex;align-items:center;gap:15px}main{padding:42px 40px;max-width:1500px;margin:auto}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:32px}.page-heading .muted{margin-top:12px}.page-heading .eyebrow{margin-bottom:9px}.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:32px}.metric{padding:22px 24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}.metric p{font-size:13px;color:var(--muted)}.metric strong{font-family:var(--display);font-size:42px;font-weight:500;line-height:1.7;font-variant-numeric:tabular-nums;display:block}.metric span{font-size:11px;color:var(--muted)}.metric.featured{background:var(--gold-bg);border-color:transparent}.metric.featured strong{color:var(--primary)}.users-panel{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);overflow:hidden}.section-heading{padding:25px 26px;display:flex;align-items:center;justify-content:space-between;gap:24px}.section-heading h2{font-size:23px}.section-heading .muted{font-size:12px;margin-top:6px}#search-form{display:flex;gap:8px;max-width:370px;width:100%}#search{min-height:44px}.table-scroll{position:relative;overflow:auto}table{width:100%;border-collapse:collapse;text-align:left;font-size:13px}th{font-size:11px;font-weight:500;color:var(--muted);background:var(--canvas);padding:13px 20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);white-space:nowrap}th:first-child,td:first-child{padding-left:26px}td{padding:19px 20px;border-bottom:1px solid var(--line);vertical-align:middle}tbody tr:last-child td{border-bottom:0}.person{display:flex;gap:11px;align-items:center;min-width:160px}.avatar{display:grid;place-items:center;width:36px;height:36px;flex-shrink:0;border-radius:12px;background:var(--surface-muted);color:var(--gold);font-family:var(--display);font-size:18px}.person-name{font-weight:600;max-width:220px;overflow-wrap:anywhere}.user-id{font-size:10px;color:var(--muted)}.date-cell{white-space:nowrap;font-size:12px}.detail-button{padding:7px 12px;background:transparent;color:var(--gold);font-size:12px}.table-footer{padding:18px 26px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);gap:16px;font-size:12px}.pagination{display:flex;gap:8px}.pagination button{font-size:12px}.page-footer{margin-top:20px;display:flex;justify-content:space-between;gap:16px;color:var(--muted);font-size:11px}.empty-state{text-align:center;padding:56px 24px 60px}.empty-symbol{font:30px var(--display);color:var(--gold);margin:0 auto 16px;width:60px;height:60px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%}.empty-state h3{font-size:21px;margin-bottom:8px}.empty-state p{font-size:13px;color:var(--muted)}.loading{color:var(--muted);font-size:13px;margin-bottom:16px}.panel-error{margin-bottom:24px}dialog{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);color:var(--ink);width:min(650px,calc(100vw - 32px));padding:28px;max-height:85svh;box-shadow:var(--shadow)}dialog::backdrop{background:#27241b66}.dialog-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.dialog-header .eyebrow{margin:0}dialog h2{margin-bottom:20px;overflow-wrap:anywhere}dl{margin:0}dl>div{display:grid;grid-template-columns:110px 1fr;gap:20px;padding:15px 0;border-bottom:1px solid var(--line)}dt{color:var(--muted);font-size:13px}dd{margin:0;overflow-wrap:anywhere;font-size:13px}.detail-note{margin-top:24px;padding:18px;background:var(--canvas);border-radius:var(--small-radius);font-size:13px;color:var(--muted)}
@media(max-width:1100px){.workspace{grid-template-columns:180px minmax(0,1fr)}.sidebar{width:180px;padding:28px 18px}.sidebar-caption{margin-left:0}.topbar{padding-inline:24px}main{padding:32px 24px}.metric{padding:18px}.metric strong{font-size:36px}.metrics{gap:12px}.page-heading h1{font-size:30px}.login-view{gap:48px}}
@media(max-width:800px){.workspace{display:block}.sidebar{position:static;width:100%;height:auto;flex-direction:row;align-items:center;justify-content:space-between;border-right:0;border-bottom:1px solid var(--line);padding:16px 22px}.sidebar-caption,.sidebar-bottom{display:none}.nav-current{font-size:13px}.wordmark{font-size:23px}.brand-seal{height:36px;width:33px;font-size:21px}.topbar{min-height:64px;padding:10px 22px}.metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.page-heading{align-items:flex-start}.page-heading h1{font-size:26px}.page-heading .muted{font-size:13px}.section-heading{align-items:flex-start;flex-direction:column}#search-form{max-width:none}.login-view{grid-template-columns:1fr;max-width:480px;gap:32px;padding:32px 22px}.login-intro{padding:0}.login-intro .wordmark{margin-bottom:32px}.login-intro h1{font-size:32px;line-height:1.4}.login-intro h1 br{display:none}.login-intro .eyebrow,.botanical,.intro-note{display:none}.login-card{padding:28px}.login-card h2{font-size:25px}}
@media(max-width:480px){main{padding:28px 16px}.page-heading{flex-direction:column;gap:18px}.page-heading .secondary{width:100%}.metric{padding:16px}.metric strong{font-size:36px}.section-heading{padding:22px 18px}.table-footer{padding:16px;align-items:flex-start;flex-direction:column}.pagination{width:100%}.pagination button{flex:1}.page-footer{flex-direction:column;gap:4px}.breadcrumb{display:none}.topbar{justify-content:flex-end}.admin-session{width:100%;justify-content:space-between}dl>div{grid-template-columns:1fr;gap:5px}dialog{padding:22px}}
@media(prefers-color-scheme:dark){:root{--canvas:#25241f;--surface:#2e2c26;--surface-muted:#38352c;--ink:#eee9dc;--muted:#b7b0a1;--line:#494438;--gold:#d4b777;--gold-bg:#423b2c;--primary:#d8ba7a;--on-primary:#29241a;--danger:#f09d91;--shadow:0 16px 56px #0002}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
dialog{width:min(1050px,calc(100vw - 32px))}#study-section{margin-top:32px;border-top:1px solid var(--line);padding-top:28px}.study-heading h3{font-size:23px}.study-heading .muted{font-size:12px;margin-top:6px}.device-list{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0}.device-button{display:flex;flex-direction:column;align-items:flex-start;gap:4px;white-space:normal;text-align:left}.device-button strong{font-size:13px}.device-button span{font-size:11px;color:var(--muted)}.device-button[aria-pressed=true]{border-color:var(--gold);background:var(--surface-muted)}.study-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:20px 0 12px}.study-summary>div{border:1px solid var(--line);border-radius:var(--small-radius);padding:16px}.study-summary span{display:block;font-size:11px;color:var(--muted)}.study-summary strong{display:block;font:600 24px var(--display);margin-top:8px}.study-tabs{display:flex;gap:8px;margin:24px 0 16px;flex-wrap:wrap}.study-tabs button{background:var(--surface-muted);color:var(--ink)}.study-tabs button[aria-pressed=true]{background:var(--gold-bg);color:var(--gold);border-color:var(--gold)}#study-note{margin:12px 0 18px}#study-data td{max-width:260px;overflow-wrap:anywhere;min-width:75px}#study-status{font-size:13px}#study-search{max-width:380px}@media(max-width:480px){.study-summary{grid-template-columns:1fr}.study-summary>div{display:flex;align-items:center;justify-content:space-between;gap:12px}.study-summary strong{margin:0;font-size:22px}.device-list{flex-direction:column}.study-tabs button{flex:1;padding-inline:12px}}
#study-data table{min-width:760px}#study-data td:first-child{min-width:130px}#study-data td:nth-child(2){min-width:120px}
#diagnostics-panel{margin-top:32px}.diagnostics-status,#diagnostics-error{padding:0 26px 20px}#diagnostics-table table{min-width:520px}

#feedback-panel{margin-top:32px}#feedback-table table{min-width:760px}#feedback-table td:first-child{max-width:200px;overflow-wrap:anywhere}#feedback-detail{width:min(760px,calc(100vw - 32px))}#feedback-content{margin:var(--space) 0;overflow-wrap:anywhere}#feedback-content h3{margin-top:var(--space);margin-bottom:12px}.feedback-receipt{font-size:13px;overflow-wrap:anywhere}.feedback-context{margin-top:12px}.feedback-text{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit}.feedback-attachment{margin:12px 0;padding:16px;border:1px solid var(--line);border-radius:var(--small-radius)}.feedback-attachment summary{cursor:pointer;min-height:44px;display:list-item;padding:10px 0}.feedback-attachment img{display:block;max-width:100%;height:auto}.feedback-attachment .feedback-text{margin-top:12px}#feedback-process{border-top:1px solid var(--line);padding-top:var(--space)}#feedback-process label{display:block;margin:18px 0 8px}#feedback-process textarea,#feedback-process select{font:inherit;width:100%;min-height:48px;padding:11px 14px;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:var(--small-radius)}#feedback-process textarea{resize:vertical}#feedback-process :focus-visible{outline:3px solid var(--gold);outline-offset:4px}#feedback-process-note{margin:12px 0 20px}#feedback-save{width:100%;white-space:normal}

#feedback-save-error,#feedback-save-status{margin:12px 0}