:root{--bg:oklch(1 0 0);--surface:oklch(.975 .004 150);--soft:oklch(.96 .012 150);--ink:oklch(.24 .018 150);--muted:oklch(.46 .018 150);--line:oklch(.86 .012 150);--brand:oklch(.43 .11 150);--brand-hover:oklch(.36 .10 150);--selected:oklch(.96 .03 150);--warn:oklch(.43 .10 65);--warn-bg:oklch(.97 .025 80);--error:oklch(.45 .15 25);--focus:oklch(.52 .14 150);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);font-size:16px;line-height:1.65;background:var(--bg);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}a{color:var(--brand);text-decoration-thickness:1px;text-underline-offset:3px}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}button,a,input,textarea,select{touch-action:manipulation;-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:3px}h1,h2,h3,p{margin-top:0}h1,h2,h3{text-wrap:balance;line-height:1.4}h1{font-size:2rem;font-weight:650;letter-spacing:-.025em}h2{font-size:1.55rem;font-weight:650;letter-spacing:-.02em}h3{font-size:1.125rem}p{margin-bottom:1rem;text-wrap:pretty}small,.small{font-size:.85rem}.muted{color:var(--muted)}[hidden]{display:none!important}.skip-link{position:absolute;top:-100px;left:1rem;background:var(--bg);padding:1rem;z-index:8}.skip-link:focus{top:0}.topbar{min-height:78px;border-bottom:1px solid var(--line);padding:16px 36px;display:flex;justify-content:space-between;align-items:center;gap:1rem;background:var(--bg)}.brand{display:flex;gap:12px;align-items:center;font-weight:650;color:var(--ink);text-decoration:none;line-height:1.3}.brand-mark{display:grid;place-items:center;background:var(--brand);color:var(--bg);width:36px;height:36px;border-radius:10px;font-size:24px}.brand-sub{display:block;color:var(--muted);font-weight:400;font-size:12px;margin-top:3px}#save-state{font-size:12px;color:var(--muted);text-align:right;max-width:160px}.loading,.welcome{max-width:760px;margin:0 auto;padding:70px 30px}.welcome .intro{font-size:1.15rem;color:var(--muted);max-width:40em}.welcome h1{margin:20px 0 22px}.version{display:inline-flex;gap:7px;align-items:center;font-size:13px;color:var(--muted)}.version:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}.steps{list-style:none;padding:0;margin:36px 0}.steps li{display:flex;align-items:flex-start;gap:15px;padding:17px 0;border-bottom:1px solid var(--line)}.steps li:first-child{border-top:1px solid var(--line)}.step-n{color:var(--brand);font-weight:650;min-width:20px}.steps strong{display:block;margin-bottom:2px}.steps p{color:var(--muted);margin:0;font-size:.94rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:46px;padding:10px 20px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);font-weight:550;text-decoration:none;transition:background .15s,color .15s,border-color .15s}.btn:hover{background:var(--surface)}.btn.primary{background:var(--brand);border-color:var(--brand);color:var(--bg)}.btn.primary:hover{background:var(--brand-hover)}.btn.subtle{border-color:transparent;background:transparent;color:var(--muted)}.btn.small{min-height:40px;padding:6px 12px;font-size:.85rem}.actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.welcome .actions{margin:28px 0 18px}.notice{padding:13px 24px;background:var(--warn-bg);color:var(--warn);font-size:14px;border-bottom:1px solid var(--line);display:flex;gap:12px;align-items:center;justify-content:center;flex-wrap:wrap}.notice.error{color:var(--error)}.shell{display:grid;grid-template-columns:264px minmax(0,1fr);max-width:1300px;margin:auto;min-height:calc(100vh - 78px)}.sidebar{background:var(--surface);border-right:1px solid var(--line);padding:30px 20px;position:sticky;top:0;height:calc(100dvh - 10px);overflow:auto}.progress-label{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-bottom:10px}.progress-label strong{color:var(--ink)}progress{appearance:none;width:100%;height:5px;border:none;background:var(--line);display:block;border-radius:4px;overflow:hidden}progress::-webkit-progress-bar{background:var(--line)}progress::-webkit-progress-value{background:var(--brand)}progress::-moz-progress-bar{background:var(--brand)}.section-nav{display:flex;flex-direction:column;gap:4px;margin-top:24px}.nav-item{display:flex;align-items:center;justify-content:space-between;gap:8px;border:0;background:transparent;border-radius:6px;text-align:left;color:var(--muted);padding:10px 11px;min-height:44px;font-size:14px}.nav-item:hover{background:var(--soft)}.nav-item.active{background:var(--selected);color:var(--brand);font-weight:650}.nav-item span:last-child{font-size:12px;white-space:nowrap}.sidebar-tools{border-top:1px solid var(--line);padding-top:17px;margin-top:20px}.sidebar-tools .nav-item{width:100%}.sidebar-note{font-size:12px;color:var(--muted);padding:18px 10px 0}.workspace{min-width:0;padding:34px 48px 80px}.workspace>main{max-width:780px;margin:auto}.mobile-progress{display:none}.section-title{color:var(--muted);font-size:13px;margin-bottom:12px}.question-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}.question-head .section-title{margin:0}.question-count{font-size:13px;color:var(--muted);white-space:nowrap}.question-title{font-size:1.6rem;margin:0 0 24px}.proposal{background:var(--surface);padding:22px 24px;border-radius:10px;margin-bottom:20px}.proposal-label{color:var(--brand);font-size:13px;font-weight:600;margin-bottom:9px}.proposal p{font-size:1.02rem;line-height:1.85;white-space:pre-line;margin:0}.explanation{font-size:.94rem;color:var(--muted);margin-bottom:25px;white-space:pre-line}.choices{border:0;padding:0;margin:0 0 20px}.choices legend{font-weight:600;font-size:15px;margin-bottom:12px}.choice{display:flex;align-items:center;gap:12px;padding:14px 17px;border:1px solid var(--line);border-radius:8px;margin-bottom:9px;cursor:pointer;transition:background .15s,border-color .15s}.choice:hover{background:var(--surface)}.choice:has(input:checked){border-color:var(--brand);background:var(--selected)}.choice input{accent-color:var(--brand);width:19px;height:19px;flex-shrink:0;margin:0}.choice strong{font-size:1rem;font-weight:550}.choice span{font-size:13px;color:var(--muted);margin-left:auto}.field{display:block;margin-bottom:22px}.field>span{display:block;font-weight:550;font-size:14px;margin-bottom:8px}.field input,.field textarea,.field select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:7px;background:var(--bg);color:var(--ink);min-height:47px}.field textarea{min-height:112px;resize:vertical;line-height:1.65}.field input::placeholder,.field 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var(--line);background:var(--bg);color:var(--muted);border-radius:6px}.filter.active{background:var(--ink);color:var(--bg);border-color:var(--ink)}.review-list{margin-bottom:28px}.review-row{width:100%;display:flex;gap:14px;align-items:flex-start;border:0;border-top:1px solid var(--line);padding:16px 0;text-align:left;background:var(--bg);color:var(--ink)}.review-row:last-child{border-bottom:1px solid var(--line)}.review-row:hover{background:var(--surface)}.review-row .row-content{flex:1;min-width:0}.review-row strong{font-size:15px;font-weight:550}.review-row p{font-size:13px;color:var(--muted);margin:5px 0 0;overflow-wrap:anywhere}.tag{font-size:12px;font-weight:550;white-space:nowrap;display:inline-flex;align-items:center;gap:4px;padding:3px 8px;border-radius:5px;background:var(--surface);color:var(--muted)}.tag.confirmed{background:var(--selected);color:var(--brand)}.tag.change{background:var(--warn-bg);color:var(--warn)}.tag.discuss{background:var(--surface);color:var(--muted)}.tag.unanswered{border:1px solid var(--line);background:var(--bg)}.checkline{display:flex;align-items:flex-start;gap:10px;font-size:14px;margin:22px 0}.checkline input{width:20px;height:20px;accent-color:var(--brand);flex-shrink:0;margin-top:3px}.empty{padding:30px 0;color:var(--muted)}.receipt{padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:28px 0}.receipt dl{display:grid;grid-template-columns:100px 1fr;gap:10px;margin:0;font-size:14px}.receipt dt{color:var(--muted)}.receipt dd{margin:0;overflow-wrap:anywhere}.success-mark{display:grid;place-items:center;width:48px;height:48px;border-radius:50%;background:var(--selected);color:var(--brand);font-size:26px;margin:12px 0 22px}.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);max-width:calc(100% - 32px);padding:12px 18px;background:var(--ink);color:var(--bg);border-radius:8px;font-size:14px;z-index:6}.admin-shell{max-width:1120px;margin:auto;padding:36px 30px 80px}.admin-shell h1{font-size:1.8rem}.admin-record{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}.admin-record h3{margin:0 0 7px}.admin-record p{font-size:13px;color:var(--muted);margin:0}.admin-detail{max-width:820px}.admin-answer{padding:22px 0;border-top:1px solid var(--line)}.admin-answer h3{margin:10px 0}.admin-answer p{white-space:pre-line;overflow-wrap:anywhere;margin-bottom:8px}.admin-answer .original{font-size:14px;color:var(--muted)}.admin-answer .client-note{background:var(--warn-bg);padding:12px;border-radius:6px;font-size:15px}.admin-back{margin-bottom:24px}.revision-select{max-width:440px;margin:20px 0}.inline-summary{display:flex;gap:18px;flex-wrap:wrap;font-size:14px;color:var(--muted);margin:20px 0}.inline-summary strong{color:var(--ink)}.privacy-note{font-size:12px;color:var(--muted);margin-top:12px}.copy-fallback{width:100%;font-size:13px;padding:10px;border:1px solid var(--line);border-radius:6px;margin-top:12px}.fatal{max-width:600px;margin:60px auto;padding:24px}.details-summary{cursor:pointer;min-height:44px;display:flex;align-items:center;gap:8px;font-weight:550}.parameter-summary{font-size:14px}.parameter-summary dl{margin:16px 0}.parameter-summary dt{font-weight:550;margin-top:16px}.parameter-summary dd{margin:4px 0 0;color:var(--muted);white-space:pre-line;overflow-wrap:anywhere}.admin-link{margin-top:36px;font-size:12px;color:var(--muted)}
@media(max-width:840px){.topbar{padding:13px 20px;min-height:70px}.shell{display:block}.sidebar{display:none}.workspace{padding:24px 24px 110px}.workspace>main{max-width:690px}.mobile-progress{display:block;padding:16px 24px;border-bottom:1px solid var(--line);background:var(--surface)}.mobile-progress details{margin-top:8px}.mobile-progress summary{font-size:13px;color:var(--muted);cursor:pointer;padding:7px 0;min-height:36px}.mobile-progress .section-nav{margin-top:9px;display:grid;grid-template-columns:1fr 1fr}.mobile-progress .nav-item{background:var(--bg);font-size:13px}.mobile-progress .sidebar-tools{display:flex;gap:8px;margin-top:12px;padding-top:12px}.question-bottom{position:fixed;left:0;right:0;bottom:0;margin:0;padding:12px 24px calc(12px + env(safe-area-inset-bottom));background:var(--bg);z-index:3}.question-bottom .btn{min-width:100px}.question-title{font-size:1.45rem}.welcome{padding-top:42px}.toast{bottom:96px}.admin-shell{padding:28px 22px 60px}}
@media(max-width:480px){h1{font-size:1.7rem}.topbar{padding:12px 18px}.workspace{padding:25px 20px 120px}.welcome{padding:36px 22px}.proposal{padding:18px}.choice{padding:14px}.choice span{font-size:12px}.choice strong{font-size:15px}.question-count{font-size:12px}.question-bottom{padding-left:18px;padding-right:18px;gap:4px}.question-bottom .btn{padding:10px 13px;min-width:91px}.question-bottom .btn.subtle{font-size:12px;padding:10px 8px}.form-grid{display:block}.mobile-progress{padding:14px 20px}.review-row{gap:10px}.review-row strong{font-size:14px}.tag{font-size:11px;padding:3px 6px}.admin-record{align-items:flex-start}.admin-record .actions{flex-direction:column;gap:4px}.brand-sub{font-size:11px}.receipt dl{grid-template-columns:80px 1fr}.question-head{gap:5px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
@media print{.topbar,.sidebar,.mobile-progress,.actions,.question-bottom,.filter,.admin-back,.revision-select,.notice,.privacy-note,.admin-link{display:none!important}.shell{display:block}.workspace,.admin-shell{padding:0;max-width:none}.admin-answer{break-inside:avoid}.tag{color:var(--ink)!important;background:none!important}.admin-answer .client-note{background:none;padding:0}.admin-detail{max-width:none}body{font-size:11pt}.review-row{break-inside:avoid}}