:root{--navy:#20256f;--navy-2:#303799;--ink:#222d3a;--muted:#687385;--line:#ded8ce;--paper:#fbfaf7;--warm:#f5efe5;--coral:#ec7441;--green:#287c67;--danger:#ad3434;--white:#ffffff;--radius:8px}*{box-sizing:border-box}body,html{min-height:100%;background:var(--warm)}body{margin:0;color:var(--ink);font-family:Noto Sans SC,Microsoft YaHei,PingFang SC,Arial,sans-serif;letter-spacing:0}a{color:inherit}button,input,select,textarea{font:inherit;letter-spacing:0}button{cursor:pointer}textarea{resize:vertical}.app-shell{min-height:100vh;background:linear-gradient(180deg,rgba(255,255,255,.7),rgba(245,239,229,.7)),var(--warm)}.topbar{position:-webkit-sticky;position:sticky;top:0;z-index:20;justify-content:space-between;flex-wrap:wrap;gap:18px;min-height:72px;padding:14px 32px;border-bottom:1px solid rgba(32,37,111,.16);background:rgba(251,250,247,.94);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.brand,.topbar{display:flex;align-items:center}.brand{gap:14px;min-width:0}.brand img{width:152px;height:auto;display:block}.brand-title{display:grid;grid-gap:2px;gap:2px}.brand-title strong{color:var(--navy);font-size:18px}.brand-title span{color:var(--muted);font-size:12px}.top-actions{display:flex;gap:10px;align-items:center;justify-content:flex-end;flex-wrap:wrap}.top-actions .button{white-space:nowrap}.page-band{width:min(1180px,calc(100% - 32px));margin:0 auto;padding:28px 0 56px}.grid-main{display:grid;grid-template-columns:minmax(0,1fr) 320px;grid-gap:22px;gap:22px;align-items:start}.section{padding:22px 0;border-bottom:1px solid rgba(32,37,111,.12)}.section:first-child{padding-top:0}.section-title{align-items:baseline;justify-content:space-between;gap:16px;margin:0 0 16px}.section-title h2{margin:0;color:var(--navy);font-size:21px}.section-title span{color:var(--muted);font-size:13px}.form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:14px;gap:14px}.field{display:grid;grid-gap:7px;gap:7px}.field label{color:#344051;font-size:13px;font-weight:700}.field-hint{margin:-2px 0 2px;color:var(--muted);font-size:12px;line-height:1.55}.field input,.field select,.field textarea{width:100%;min-height:42px;border:1px solid var(--line);border-radius:var(--radius);padding:10px 12px;background:var(--white);color:var(--ink);outline:none}.field textarea{min-height:104px;line-height:1.6}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--navy-2);box-shadow:0 0 0 3px rgba(48,55,153,.12)}.wide{grid-column:1/-1}.process-layout{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:14px;gap:14px}.auth-panel,.module-card,.side-panel{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);padding:16px}.module-card h3,.side-panel h3{margin:0 0 12px;color:var(--navy);font-size:16px}.score-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));grid-gap:12px;gap:12px}.score-control{display:flex;flex-direction:column;gap:8px;min-height:300px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);padding:12px}.score-control label{color:var(--ink);font-size:12px;font-weight:700}.score-control .score-cn{color:var(--muted);font-size:11px}.score-rubric{display:grid;grid-gap:5px;gap:5px;margin:2px 0 4px;padding:0;list-style:none}.score-rubric li{display:grid;grid-template-columns:28px minmax(0,1fr);grid-gap:6px;gap:6px;color:var(--muted);font-size:11px;line-height:1.45}.score-rubric strong{color:var(--navy);font-size:11px}.score-rubric span{overflow-wrap:anywhere}.score-control select{margin-top:auto;min-height:38px;border:1px solid var(--line);border-radius:var(--radius);padding:8px}.field textarea.class-feedback-textarea{min-height:416px}.field textarea.prompt-textarea{min-height:520px;font-family:ui-monospace,SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:13px}.admin-section{display:grid;grid-gap:10px;gap:10px;margin-top:22px}.section-title{display:flex;align-items:center;gap:8px;color:var(--navy)}.section-title h4{margin:0;font-size:16px}.prompt-sample{border-left:4px solid var(--navy-2);border-radius:var(--radius);background:#f4f6ff;padding:12px 14px;color:var(--ink)}.prompt-sample strong{display:block;margin-bottom:6px;color:var(--navy)}.prompt-sample p{margin:0;white-space:pre-wrap}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;border:1px solid transparent;border-radius:var(--radius);padding:9px 14px;color:var(--white);background:var(--navy);font-weight:700;text-decoration:none}.button:hover{background:#171b55}.button.secondary{color:var(--navy);border-color:rgba(32,37,111,.28);background:var(--white)}.button.secondary:hover{background:#f1f0fb}.button.coral{background:var(--coral)}.button.coral:hover{background:#d85e2b}.button:disabled{cursor:not-allowed;opacity:.55}.action-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:18px}.ai-rewrite-progress{display:grid;grid-gap:8px;gap:8px;width:min(560px,100%);margin-top:12px;border:1px solid rgba(32,37,111,.14);border-radius:var(--radius);background:rgba(255,255,255,.72);padding:12px 14px}.ai-rewrite-progress-label{color:var(--navy);font-size:13px;font-weight:700}.ai-rewrite-progress-track{height:8px;overflow:hidden;border-radius:999px;background:rgba(32,37,111,.12)}.ai-rewrite-progress-fill{position:relative;display:block;height:100%;overflow:hidden;border-radius:inherit;background:var(--coral);transition:width .4s ease-out}.ai-rewrite-progress-fill:after{position:absolute;inset:0;content:"";background:linear-gradient(90deg,transparent,rgba(255,255,255,.5) 50%,transparent);transform:translateX(-100%);animation:rewrite-progress-shimmer 1.6s ease-in-out infinite}.ai-rewrite-progress.is-complete .ai-rewrite-progress-label{color:var(--green)}.ai-rewrite-progress.is-complete .ai-rewrite-progress-fill{background:var(--green)}@keyframes rewrite-progress-shimmer{to{transform:translateX(100%)}}@media (prefers-reduced-motion:reduce){.ai-rewrite-progress-fill{transition:none}.ai-rewrite-progress-fill:after{animation:none}}.notice{border-left:4px solid var(--coral);border-radius:var(--radius);background:#fff4ed;padding:12px 14px;color:#574435}.error{border-left-color:var(--danger);background:#fff1f1;color:var(--danger)}.success{border-left-color:var(--green);background:#eefaf6;color:var(--green)}.source-list{display:grid;grid-gap:10px;gap:10px;margin:0;padding:0;list-style:none}.source-list li{border-bottom:1px solid rgba(32,37,111,.12);padding-bottom:9px}.source-list strong{display:block;color:var(--navy);font-size:13px}.source-list span{color:var(--muted);font-size:12px}.preview-section{border-bottom:1px solid rgba(32,37,111,.12);padding:18px 0}.preview-section:first-child{padding-top:0}.preview-section h2{margin:0 0 12px;color:var(--navy);font-size:20px}.preview-section textarea{width:100%;min-height:120px;padding:12px;background:var(--white);line-height:1.6}.preview-section textarea,.reference-details{border:1px solid var(--line);border-radius:var(--radius)}.reference-details{margin-top:12px;background:var(--paper);padding:10px 12px}.reference-details summary{cursor:pointer;color:var(--navy);font-weight:700}.reference-text{margin-top:10px;color:#394556;font-size:13px;line-height:1.65;white-space:pre-wrap;overflow-wrap:anywhere}.quality-list{display:grid;grid-gap:8px;gap:8px}.radar-profile{display:block;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);padding:16px}.radar-chart{width:min(100%,760px);height:auto;display:block;margin:0 auto}.radar-grid{fill:none;stroke:#e3ded3;stroke-width:1}.radar-axis{stroke:#d1cbc3;stroke-width:1}.radar-area{fill:rgba(32,37,111,.22);stroke:var(--navy);stroke-width:3;stroke-linejoin:round}.radar-point{fill:var(--coral);stroke:var(--white);stroke-width:2}.radar-label{fill:#344051;font-weight:700}.radar-label-en{fill:#30394a;font-size:10px}.radar-label-cn{fill:#202b3c;font-size:11px}.radar-score-value{fill:var(--coral);font-size:12px;font-weight:700}.quality-list h4{margin:12px 0 4px;color:var(--navy)}.quality-list ul{margin:0;padding-left:18px;color:var(--muted)}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(180deg,rgba(255,255,255,.52),rgba(245,239,229,.88)),var(--warm)}.auth-panel{width:min(420px,100%);display:grid;grid-gap:16px;gap:16px;border:1px solid rgba(32,37,111,.14);border-radius:var(--radius);background:rgba(251,250,247,.96);padding:26px;box-shadow:0 18px 45px rgba(32,37,111,.1)}.auth-panel img{width:180px;height:auto;display:block;margin-bottom:2px}.auth-panel h1{margin:0;color:var(--navy);font-size:24px;line-height:1.25}.auth-panel .action-row{margin-top:0}.auth-panel .button{min-width:132px}.admin-layout{width:min(820px,calc(100% - 32px));margin:0 auto;padding:34px 0}@media (max-width:980px){.form-grid,.grid-main,.process-layout,.radar-profile,.score-grid{grid-template-columns:1fr}.topbar{align-items:flex-start;padding:12px 18px}.top-actions{width:100%;justify-content:flex-start}.brand img{width:126px}}