:root{--ink:#20392f;--muted:#69776e;--accent:#355e48;--accent-dark:#274735;--line:#dce3da;--paper:#fff;--bg:#f6f7f4;--soft:#edf2eb;--warning:#8a5127;font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #9cc19c;outline-offset:3px}[hidden]{display:none!important}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(30px,4vw,44px);font-weight:600;letter-spacing:-1.5px;line-height:1.35}h2{font-size:28px;line-height:1.4;font-weight:600}p{line-height:1.85}a{color:var(--accent)}.site-header{max-width:1320px;margin:auto;padding:24px 36px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font-size:17px;font-weight:650}.brand small{display:block;font-size:9px;letter-spacing:1.8px;margin-top:5px;font-weight:500;color:var(--muted)}.brand-mark{font-size:29px;background:var(--soft);width:45px;height:45px;border-radius:13px;display:grid;place-items:center}.session-tools{display:flex;align-items:center;gap:25px}.clock{display:grid;gap:4px}.clock span{font-size:11px;color:var(--muted)}.clock strong{font-size:18px;font-weight:550;font-variant-numeric:tabular-nums;letter-spacing:.6px}.button{padding:12px 22px;border:1px solid var(--line);border-radius:9px;background:var(--paper);color:var(--ink);font-weight:550;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px;line-height:1.4}.button-primary{background:var(--accent);border-color:var(--accent);color:white}.button-primary:hover:not(:disabled){background:var(--accent-dark)}.button-quiet{background:transparent;font-size:13px;padding:10px 14px}.button-link{border:0;background:transparent;padding:4px;color:var(--accent);font-size:13px;text-decoration:underline}#app{max-width:1180px;margin:auto;padding:28px 36px 12px;min-height:calc(100vh - 162px)}.eyebrow{display:block;font-size:10px;letter-spacing:2.6px;color:var(--accent);font-weight:650;margin-bottom:16px}.muted{color:var(--muted)}.hero{display:grid;grid-template-columns:1.12fr 1fr;gap:68px;align-items:start;padding:35px 0 25px}.hero-copy{padding-top:22px}.hero-copy>p{color:var(--muted);max-width:470px;font-size:15px}.stat-row{display:flex;gap:32px;margin:30px 0 35px}.stat strong{font-size:28px;font-weight:550;display:block}.stat span{font-size:12px;color:var(--muted)}.guide{padding:23px 25px;background:var(--soft);border-radius:13px;font-size:13px;line-height:1.85}.guide strong{display:block;margin-bottom:8px}.guide p{margin:0}.setup-card{background:white;border:1px solid var(--line);border-radius:18px;padding:30px;box-shadow:0 12px 35px #20392f05}.setup-card h2{font-size:21px;margin-bottom:7px}.setup-card>p{font-size:13px;color:var(--muted)}.field{display:block;margin:20px 0}.field>span{display:block;font-size:13px;font-weight:600;margin-bottom:8px}.field input,.field select{width:100%;padding:12px;border:1px solid var(--line);border-radius:8px;background:white;color:var(--ink);min-height:44px}.field small{display:block;margin-top:7px;font-size:11px;line-height:1.7;color:var(--muted)}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field-row .field{margin-top:0}.consent{display:flex;align-items:flex-start;gap:9px;font-size:12px;line-height:1.8;color:var(--muted);margin:20px 0}.consent input{accent-color:var(--accent);margin-top:5px}.full-width{width:100%}.notice{font-size:12px;line-height:1.8;padding:14px 17px;border-radius:9px;border:1px solid var(--line);margin-bottom:20px;background:white}.notice-warning{border-color:#ebd4bb;background:#fff8ef;color:var(--warning)}.error{color:#a13b2c;font-size:13px;line-height:1.7}.resume-card{background:var(--soft);border:1px solid #c9d9c9;padding:22px;border-radius:12px;margin-bottom:25px}.resume-card h3{margin-bottom:8px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.progress-meta{display:flex;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted);margin-bottom:10px}.progress-track{height:4px;background:#e2e8df;border-radius:5px;overflow:hidden}.progress-fill{height:100%;background:var(--accent);transition:width .25s}.dimension-tabs{display:flex;gap:8px;margin:18px 0 21px;flex-wrap:wrap}.dimension-tab{font-size:11px;color:var(--muted);padding:6px 11px;border:1px solid transparent;border-radius:20px}.dimension-tab.current{color:var(--accent-dark);background:#e4eddc;border-color:#d4e1cc}.dimension-tab.done{color:var(--accent)}.trial-heading{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:18px}.trial-heading h1{font-size:25px;letter-spacing:-.6px;margin-bottom:6px}.definition{font-size:12px;line-height:1.8;margin:0;color:var(--muted);max-width:760px}.trial-number{font-size:13px;color:var(--muted);white-space:nowrap}.image-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.image-card{margin:0;background:white;border:1px solid var(--line);border-radius:13px;overflow:hidden}.image-card figcaption{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #edf0e9;padding:10px 17px;font-size:11px;color:var(--muted)}.image-card figcaption strong{font-size:12px;color:var(--ink);font-weight:550}.image-stage{display:flex;align-items:center;justify-content:center;height:clamp(280px,48vh,540px);padding:12px;background:#fdfefb;position:relative}.stimulus{max-height:100%;max-width:100%;width:auto;height:auto;object-fit:contain;cursor:zoom-in}.image-caption-hint{font-size:10px;color:var(--muted)}.loading-status{font-size:12px;text-align:center;color:var(--muted);min-height:21px;margin-top:10px}.response-panel{margin-top:12px}.response-prompt{font-size:12px;color:var(--muted);margin-bottom:10px;text-align:center}.choices{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.choice{border:1px solid var(--line);background:white;color:var(--ink);border-radius:9px;padding:13px 5px;min-height:67px;font-size:13px;line-height:1.55;transition:background .12s,border-color .12s}.choice small{display:block;font-size:10px;color:var(--muted);margin-top:3px}.choice:hover:not(:disabled){border-color:#99b394;background:#f1f5ee}.choice[aria-pressed=true]{background:var(--accent);color:white;border-color:var(--accent)}.choice[aria-pressed=true] small{color:#dbe7d8}.trial-actions{display:flex;align-items:center;justify-content:space-between;margin-top:17px;gap:15px}.trial-actions p{font-size:11px;color:var(--muted);margin:0}.site-footer{max-width:1250px;margin:22px auto 0;padding:18px 36px;display:flex;justify-content:space-between;gap:20px;color:#7a847c;font-size:10px;border-top:1px solid var(--line)}.center-card{max-width:740px;margin:40px auto;padding:40px;background:white;border:1px solid var(--line);border-radius:18px}.center-card .eyebrow{margin-bottom:20px}.definition-large{font-size:16px;line-height:1.9;padding:20px;background:var(--soft);border-radius:10px}.dimension-list{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0}.dimension-list span{font-size:12px;padding:7px 12px;background:var(--soft);border-radius:20px}.break-stats,.result-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:27px 0}.break-stats div,.result-stats div{padding:17px 12px;border-radius:10px;background:var(--bg)}.break-stats span,.result-stats span{display:block;color:var(--muted);font-size:11px;margin-bottom:7px}.break-stats strong,.result-stats strong{font-size:23px;font-weight:550;font-variant-numeric:tabular-nums}.download-note{font-size:13px;color:var(--muted);margin-top:25px}.modal{border:1px solid var(--line);border-radius:17px;max-width:440px;padding:0;width:calc(100% - 40px);color:var(--ink)}.modal::backdrop,.zoom-dialog::backdrop{background:#16271fbb;backdrop-filter:blur(3px)}.modal-content{padding:35px}.modal-content h2{font-size:25px}.modal-content p{font-size:13px}.zoom-dialog{border:0;background:#f7f8f3;border-radius:12px;padding:50px 15px 15px;max-height:95vh;max-width:95vw;color:var(--ink)}.zoom-dialog img{display:block;max-height:calc(95vh - 80px);max-width:calc(95vw - 40px);object-fit:contain}.zoom-close{position:absolute;right:10px;top:8px;font-size:12px;padding:8px 12px}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;padding:12px 18px;border-radius:9px;max-width:90vw;font-size:12px;z-index:20}.storage-warning{max-width:1108px;margin:0 auto 10px}.save-status{font-size:10px;color:var(--muted)}.mono{font-variant-numeric:tabular-nums}.rating-hint{font-size:12px;color:var(--muted);line-height:1.9}.completion-icon{width:51px;height:51px;display:grid;place-items:center;border-radius:50%;background:var(--soft);font-size:25px;margin-bottom:23px}
@media(min-width:1400px){#app{padding-top:35px}.image-stage{height:clamp(300px,50vh,600px)}}
@media(max-width:760px){.site-header{padding:18px 18px;gap:10px}.brand{font-size:14px;gap:8px}.brand small{font-size:7px;letter-spacing:1px}.brand-mark{width:35px;height:35px;font-size:23px}.session-tools{gap:12px}.clock strong{font-size:15px}.secondary-clock{display:none}.session-tools .button{font-size:11px;padding:8px 9px}#app{padding:20px 18px 8px}.hero{grid-template-columns:1fr;gap:22px;padding-top:0}.hero-copy{padding-top:5px}.hero-copy>p{max-width:none}.stat-row{gap:30px;margin:20px 0}.guide{padding:18px}.setup-card{padding:23px}.trial-heading{gap:12px;align-items:start}.trial-heading h1{font-size:21px}.trial-number{font-size:11px;padding-top:5px}.definition{font-size:11px}.dimension-tabs{gap:2px;margin:13px 0 18px}.dimension-tab{font-size:10px;padding:5px 8px}.image-grid{gap:10px}.image-stage{height:clamp(230px,43vh,430px);padding:7px}.image-card figcaption{padding:8px 10px}.image-caption-hint{display:none}.choices{gap:5px}.choice{font-size:11px;padding:10px 3px;min-height:64px}.choice small{font-size:9px}.trial-actions p{max-width:50%;line-height:1.7}.site-footer{padding:17px 18px;font-size:9px}.site-footer span:last-child{max-width:50%;text-align:right}.center-card{margin:15px auto;padding:26px 22px}.break-stats,.result-stats{gap:8px}.break-stats strong,.result-stats strong{font-size:19px}.field-row{gap:10px}.progress-meta{font-size:11px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}
/* Reserve room for responses so a trial does not require repeated scrolling. */
body[data-screen=trial] .site-footer{display:none}
body[data-screen=trial] .image-stage{height:clamp(180px,calc(100dvh - 590px),600px)}
@media(max-width:760px){body[data-screen=trial] .image-stage{height:clamp(190px,calc(100dvh - 535px),430px)}}
@media(min-width:761px) and (max-height:900px){
body[data-screen=trial] .site-header{padding-top:12px;padding-bottom:12px}
body[data-screen=trial] #app{padding-top:12px}
body[data-screen=trial] .dimension-tabs{margin-top:10px;margin-bottom:12px}
body[data-screen=trial] .trial-heading{margin-bottom:12px}
body[data-screen=trial] .trial-heading h1{font-size:22px;margin-bottom:4px}
body[data-screen=trial] .image-stage{height:clamp(240px,calc(100dvh - 430px),520px)}
body[data-screen=trial] .loading-status{margin-top:6px;min-height:18px}
body[data-screen=trial] .response-panel{margin-top:6px}
body[data-screen=trial] .response-prompt{display:none}
body[data-screen=trial] .trial-actions{margin-top:12px}
}

:root{--ink:#192b4b;--muted:#6e7c94;--accent:#3868d9;--accent-dark:#264eb3;--line:#dce4f0;--bg:#f4f7fc;--soft:#edf2fc}
.brand-mark{background:#e7eeff;color:#3868d9;border-radius:11px}.hero-copy h1{font-weight:650;letter-spacing:-1.2px}.hero{gap:76px}.setup-card{box-shadow:0 18px 55px #345c9c0a;border-radius:20px}.guide{background:#eaf0fd;border-left:3px solid #7fa0f3}.stat strong{color:#3868d9}.choices{grid-template-columns:repeat(3,1fr);gap:15px}.choice{font-size:17px;font-weight:600;min-height:69px}.choice small{font-size:11px;font-weight:400}.dimension-tab.current{background:#e4ecff;border-color:#cbdafb;color:#264eb3}.progress-fill{background:linear-gradient(90deg,#7597ef,#3868d9)}.dimension-tab.done{color:#3868d9}.image-card{background:white;box-shadow:0 4px 20px #335b8b03}.image-stage{background:#fbfcff}.result-stats div,.break-stats div{border:1px solid #e5ebf5;background:#f8faff}.partial-export{font-size:12px;padding:10px 12px}.choice:hover:not(:disabled){background:#edf2ff;border-color:#91acf1}.choice[aria-pressed=true]{background:#3868d9;border-color:#3868d9}.center-card{box-shadow:0 12px 45px #344c7307}.site-footer{color:#77849a}.brand small{letter-spacing:1.4px}
@media(max-width:760px){.hero{gap:22px}.choices{gap:8px}.choice{font-size:15px;min-height:64px}.choice small{font-size:10px}.brand small{display:none}.brand{font-size:12px}.brand-mark{width:28px;height:28px;font-size:20px}.session-tools{gap:7px}.clock strong{font-size:13px}.session-tools .button{font-size:10px;padding:8px 7px}.partial-export{padding:8px 6px}.site-header{padding-left:14px;padding-right:14px}}
.tutorial-card{max-width:940px}.tutorial-steps{padding-left:23px}.tutorial-steps li{padding:7px 0 10px}.tutorial-steps p{margin:7px 0;color:var(--muted);font-size:14px}.tutorial-dimensions{display:grid;gap:12px;margin:20px 0}.tutorial-dimensions article,.dimension-guide{padding:20px 24px;border:1px solid #dce5f6;border-radius:12px;background:#f4f7fe}.tutorial-dimensions p{margin:6px 0 0;font-size:14px;color:var(--muted)}.dimension-guide{margin:22px 0;text-align:left}.dimension-guide h2{margin:10px 0}.dimension-guide .definition-large{margin-bottom:10px}.dimension-guide .rating-hint{margin-bottom:0}.check-option{display:flex;align-items:flex-start;gap:12px;padding:14px;background:#f5f7fc;border-radius:10px;margin:10px 0;font-size:14px}.check-option input{margin-top:5px;flex-shrink:0}#instruction-check fieldset{border:0;margin:24px 0;padding:0}#instruction-check legend{font-weight:600;font-size:16px}.image-tools{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:0 0 10px;font-size:11px;color:var(--muted)}.image-tools .button{font-size:12px;padding:8px 13px}body[data-screen=trial] #app,body[data-screen=practice] #app{max-width:1440px}body[data-screen=trial] .image-stage,body[data-screen=practice] .image-stage{height:clamp(480px,64dvh,820px);padding:6px}.stimulus{width:100%;height:100%;object-fit:contain}.large-compare{width:min(1480px,98vw);max-width:98vw;max-height:98dvh;border:1px solid #dce4f0;border-radius:14px;padding:16px;background:#f6f8fd;color:var(--ink)}.large-compare::backdrop{background:#14233bdf}.large-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 0 12px}.large-heading h2{font-size:18px;margin:0}.large-images{display:grid;grid-template-columns:1fr 1fr;gap:12px}.large-images figure{margin:0;text-align:center}.large-images figcaption{font-size:12px;margin-bottom:8px}.large-images img{width:100%;height:calc(92dvh - 95px);object-fit:contain}.practice-screen h1{font-size:28px}.practice-screen .response-panel{margin-bottom:30px}
@media(max-width:760px){body[data-screen=trial] #app,body[data-screen=practice] #app{padding-left:8px;padding-right:8px}.image-grid{gap:6px}body[data-screen=trial] .image-stage,body[data-screen=practice] .image-stage{height:auto;aspect-ratio:9/19.5;padding:0}.stimulus{width:100%;height:100%}.image-card figcaption{padding:8px 6px;font-size:11px}.image-tools{font-size:10px}.image-tools .button{font-size:11px;padding:8px}.large-compare{padding:10px}.large-heading h2{font-size:14px}.large-images{gap:5px}.large-images img{height:calc(88dvh - 95px)}.practice-screen h1{font-size:22px}.dimension-guide{padding:18px}.tutorial-steps p{font-size:13px}}