:root {
  --bg:#faf6ef; --paper:#fffaf4; --ink:#3e352f; --muted:#746b62;
  --accent:#86694f; --border:#e6dacd; --button:#77583d; --button-ink:#fffaf4;
  --soft:#f1e9dd; --success:#48604c; --error:#9c3d34; --error-bg:#f8e7e2;
  --warning:#8b5c28; --shadow:0 12px 36px #4f392408; --focus:#9b7048;
  color-scheme:light;
}
:root[data-theme=dark] {
  --bg:#181d25; --paper:#222935; --ink:#e8e2d8; --muted:#b2aba4;
  --accent:#c5ae8b; --border:#3a414c; --button:#c5ae8b; --button-ink:#181d25;
  --soft:#2c3340; --success:#a6c5ab; --error:#f0aaa0; --error-bg:#3b2a30;
  --warning:#e3bf85; --shadow:0 12px 36px #00000012; --focus:#d5bc94;
  color-scheme:dark;
}
*{box-sizing:border-box} [hidden]{display:none!important}
body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;font-size:15px;line-height:1.75}
a{color:inherit;text-decoration:none} button,input,textarea,select{font:inherit} button,a,input,textarea,select{touch-action:manipulation}
button{cursor:pointer} button:disabled{cursor:not-allowed;opacity:.5} a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:4px}
h1,h2,h3,p{margin-top:0} h1,h2,h3{font-family:'Noto Serif CJK SC','Songti SC',SimSun,serif;font-weight:500;line-height:1.45}
h1{font-size:clamp(30px,4.3vw,46px);letter-spacing:.02em;margin-bottom:16px;overflow-wrap:anywhere}h2{font-size:23px;margin-bottom:14px}h3{font-size:18px}p{margin-bottom:16px}
.site-header{max-width:1240px;margin:auto;min-height:100px;padding:20px 40px;display:flex;justify-content:space-between;align-items:center;gap:24px;border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:center;gap:13px;font-family:'Songti SC',SimSun,serif;font-size:25px;font-weight:600;letter-spacing:.12em}.brand small{display:block;font:10px/1.8 system-ui,sans-serif;color:var(--muted);letter-spacing:.08em}.book-mark{border:1px solid var(--accent);border-radius:3px 10px 10px 3px;padding:2px 8px;font-size:26px;color:var(--accent);box-shadow:-3px 2px 0 var(--soft)}
.site-header nav{display:flex;align-items:center;gap:24px;font-size:13px}.site-header nav>a:hover,.text-link:hover,.back-link:hover{color:var(--accent);text-decoration:underline;text-underline-offset:5px}
.theme-toggle{padding:7px 13px;border:1px solid var(--border);border-radius:20px;background:var(--paper);color:var(--ink);font-size:12px;white-space:nowrap}.user-menu{position:relative}.user-menu summary{cursor:pointer;max-width:120px;overflow-wrap:anywhere}.user-menu>div{position:absolute;right:0;top:35px;z-index:10;background:var(--paper);padding:16px;min-width:130px;border:1px solid var(--border);border-radius:8px;box-shadow:var(--shadow)}.user-menu form{margin-top:10px}.text-button{background:none;border:0;color:var(--muted);padding:0}
.page{max-width:1160px;margin:0 auto;padding:54px 40px 80px;min-height:calc(100vh - 190px)}.site-footer{max-width:1160px;margin:0 auto;border-top:1px solid var(--border);padding:22px 40px;display:flex;justify-content:space-between;gap:15px;color:var(--muted);font-size:11px;letter-spacing:.06em}
.paper{background:var(--paper);border:1px solid var(--border);border-radius:8px;box-shadow:var(--shadow)}.eyebrow{display:block;color:var(--accent);font-size:11px;letter-spacing:.16em;margin-bottom:14px}.muted{color:var(--muted)}.fine-print{font-size:12px;color:var(--muted);line-height:1.9}.button{display:inline-flex;justify-content:center;align-items:center;gap:12px;padding:12px 22px;border:1px solid var(--button);border-radius:5px;background:var(--button);color:var(--button-ink);font-size:14px;line-height:1.6;white-space:nowrap;transition:filter .15s,transform .15s}.button:hover:not(:disabled){filter:brightness(1.08);transform:translateY(-1px)}.secondary{border-color:var(--border);background:var(--paper);color:var(--ink)}.compact{padding:7px 13px;font-size:12px}.full-width{width:100%}.danger{background:var(--error);border-color:var(--error);color:var(--bg)}.text-link,.back-link{font-size:13px;color:var(--muted)}.back-link{display:inline-block;margin-bottom:28px}.narrow{max-width:540px;margin:10px auto;padding:38px}
.notice{padding:12px 18px;border:1px solid var(--border);border-radius:5px;background:var(--soft);font-size:14px;margin-bottom:20px}.success{color:var(--success)}.error{color:var(--error);background:var(--error-bg)}.warning{color:var(--warning)}.messages{margin-bottom:26px}.errorlist{list-style:none;padding:0;margin:0}.field-errors{font-size:12px;color:var(--error);margin-top:6px}
.field{margin-bottom:23px}.field>label{display:block;font-weight:500;font-size:13px;margin-bottom:7px}.field small{display:block;color:var(--muted);font-size:11px;margin-top:7px}.field small ul{padding-left:18px}.field input:not([type=checkbox]),.field textarea,.field select{width:100%;padding:11px 13px;background:var(--bg);color:var(--ink);border:1px solid var(--border);border-radius:4px}.field textarea{resize:vertical}.field input[type=checkbox]{accent-color:var(--button);width:16px;height:16px;margin-right:8px}.field #id_members{max-height:240px;overflow:auto;padding:12px;background:var(--bg);border:1px solid var(--border);border-radius:4px}.field #id_members>div{padding:4px}.field #id_members label{display:flex;align-items:center;font-size:13px}
.auth-layout{display:grid;grid-template-columns:1fr 420px;gap:90px;align-items:center;padding:10px 24px 35px}.auth-intro h1{font-size:clamp(38px,4.8vw,58px);line-height:1.55;letter-spacing:.05em}.auth-intro h1 em{font-style:normal;color:var(--accent)}.auth-intro>p{color:var(--muted);font-size:14px;line-height:2.2}.auth-card{padding:40px}.auth-card>h2{font-size:28px}.auth-card .fine-print{margin:22px 0 0}.paper-stack{position:relative;max-width:320px;background:var(--paper);border:1px solid var(--border);padding:24px 28px;margin:38px 0 0;transform:rotate(-3deg);font-family:'Songti SC',SimSun,serif;box-shadow:6px 6px 0 var(--soft),6px 6px 0 1px var(--border)}.paper-stack span{display:block;font-size:16px}.paper-stack i{display:block;font-style:normal;color:var(--muted);margin-top:20px;font-size:12px;letter-spacing:.1em}
.lobby-heading,.room-heading{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-bottom:35px}.lobby-heading h1{margin-bottom:10px}.lobby-heading p{margin:0}.title-dot{color:var(--accent)}.list-toolbar{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border);margin-bottom:28px;padding-bottom:12px;gap:20px}.tabs{display:flex;gap:30px;font-size:14px}.tabs a{color:var(--muted);padding:8px 0;position:relative}.tabs a[aria-current]{color:var(--ink)}.tabs a[aria-current]:after{content:'';height:2px;background:var(--accent);position:absolute;bottom:-13px;left:0;right:0}
.room-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.room-card{padding:24px;min-height:285px;display:flex;flex-direction:column;transition:transform .2s,border-color .2s}.room-card:hover{transform:translateY(-4px);border-color:var(--accent)}.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.badge{font-size:11px;border:1px solid var(--border);border-radius:3px;padding:3px 8px;color:var(--accent);background:var(--soft);display:inline-block}.badge.finished{color:var(--success)}.privacy{font-size:11px;color:var(--muted)}.room-card h2{font-size:23px;overflow-wrap:anywhere;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.card-bottom{margin-top:auto;padding-top:18px}.card-bottom>p{font-size:11px;margin-bottom:14px}.progress-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:11px}.progress-meta>span:last-child{color:var(--accent)}.progress-track{height:3px;background:var(--border);margin-top:10px;border-radius:3px;overflow:hidden}.progress-track span{display:block;background:var(--accent);height:100%}.lobby-note{text-align:center;margin:35px 0 0}.empty-state{text-align:center;padding:60px 30px;grid-column:1/-1}.empty-mark{font-size:44px;color:var(--accent);display:block;margin-bottom:10px}.empty-state h2{margin-bottom:10px}
.form-layout{display:grid;grid-template-columns:1fr 1.5fr;gap:75px;align-items:start}.form-paper{padding:32px}.form-layout>div>p{line-height:2}.side-note{border-left:2px solid var(--border);padding-left:20px;margin-top:38px;max-width:280px;color:var(--muted);font-size:12px}.side-note h3{color:var(--ink)}.char-count{display:block;font-size:12px;color:var(--muted)}.over-limit{color:var(--error)!important}
.room-heading{align-items:flex-start;margin-bottom:20px}.room-heading h1{font-size:34px;max-width:720px}.room-heading p{white-space:pre-wrap}.room-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;justify-content:flex-end}.room-meta{display:flex;gap:26px;color:var(--muted);font-size:12px;border-bottom:1px solid var(--border);padding-bottom:22px;margin-bottom:30px}.claim-panel{display:flex;justify-content:space-between;align-items:center;padding:28px 32px;gap:24px;margin-bottom:26px}.claim-panel h2{margin-bottom:8px}.claim-panel p{font-size:13px;margin-bottom:0}.claim-panel .eyebrow{margin-bottom:10px}.writing-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:24px;align-items:start}.previous-page,.editor-page{padding:30px}.previous-page h2{font-family:system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;font-size:18px;font-weight:600;letter-spacing:.08em;color:var(--accent);border-bottom:1px solid var(--border);padding-bottom:14px;margin-bottom:20px}.prose{font-family:'Noto Serif CJK SC','Songti SC',SimSun,serif;font-size:17px;line-height:2.15;white-space:pre-wrap;overflow-wrap:anywhere}.previous-page .fine-print{border-top:1px solid var(--border);padding-top:20px;margin:30px 0 0}.editor-heading{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:20px}.editor-heading h2{font-size:21px;margin-bottom:0}.countdown{font-variant-numeric:tabular-nums;font-size:13px;border:1px solid var(--border);padding:3px 8px;border-radius:4px;color:var(--accent)}.editor-page textarea{width:100%;background:var(--bg);color:var(--ink);border:1px solid var(--border);border-radius:4px;padding:16px;font-family:'Songti SC',SimSun,serif;font-size:17px;line-height:2;resize:vertical;min-height:300px}.editor-footer{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:10px 0 20px}.editor-buttons{display:flex;justify-content:flex-end;gap:12px;flex-wrap:wrap}.editor-page>p{margin:18px 0 0}.reveal-heading{text-align:center;padding:15px 0 25px}.reveal-heading .badge{margin-bottom:20px}.story-book{max-width:800px;margin:0 auto;padding:48px 65px}.story-entry+.story-entry{border-top:1px solid var(--border);padding-top:30px;margin-top:35px}.entry-heading{display:flex;justify-content:space-between;gap:15px;font-size:12px;margin-bottom:18px}.entry-heading .eyebrow{margin:0}.book-end{text-align:center;color:var(--accent);letter-spacing:.4em;margin-top:45px;font-family:serif}
.admin-grid{display:grid;grid-template-columns:1fr 1.6fr;gap:28px;align-items:start}.account-list{padding:30px}.account-row{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 0;border-bottom:1px solid var(--border)}.account-row:last-child{border-bottom:0}.account-row small{display:block;color:var(--muted);font-size:11px}.account-row strong{font-size:14px;font-weight:500;overflow-wrap:anywhere}.credential{padding:25px 30px;margin-bottom:26px;border-color:var(--accent)}.credential code{display:inline-block;font-size:17px;background:var(--soft);padding:4px 10px;border-radius:3px;overflow-wrap:anywhere}.credential p:last-child{margin:0}
.skip-link{position:fixed;top:-100px;left:20px;background:var(--paper);padding:10px;z-index:100}.skip-link:focus-visible{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.user-menu summary{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media(max-width:1000px){.auth-layout{gap:45px;padding:0;grid-template-columns:1fr 390px}.room-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.form-layout{gap:35px}.writing-grid{grid-template-columns:1fr}.previous-page .prose{max-height:400px;overflow:auto}.room-heading{flex-direction:column;gap:15px}.room-actions{justify-content:flex-start}}
@media(max-width:700px){.site-header{padding:17px 20px;min-height:80px;gap:15px;flex-wrap:wrap}.brand{font-size:21px}.brand small{font-size:9px}.site-header nav{gap:13px;font-size:12px}.site-header nav>a{display:none}.theme-toggle{padding:5px 10px}.user-menu summary{max-width:75px}.page{padding:32px 20px 55px}.site-footer{padding:20px;flex-direction:column;gap:3px}.auth-layout{grid-template-columns:1fr;gap:26px}.auth-intro h1{font-size:35px}.auth-intro h1 br{display:none}.auth-intro p,.paper-stack{display:none}.auth-card{padding:28px}.auth-card h2{font-size:26px}.room-grid{grid-template-columns:1fr}.lobby-heading{gap:18px;align-items:flex-start;flex-direction:column}.lobby-heading h1{font-size:35px}.lobby-heading p{font-size:13px}.list-toolbar{gap:10px}.tabs{gap:22px;font-size:13px}.form-layout{grid-template-columns:1fr;gap:24px}.form-layout h1 br{display:none}.side-note{display:none}.form-paper{padding:24px}.narrow{padding:27px;margin:0 auto}.room-meta{gap:10px;flex-wrap:wrap}.room-heading h1{font-size:30px}.claim-panel{padding:24px;align-items:flex-start;flex-direction:column}.claim-panel>form,.claim-panel .button{width:100%}.previous-page,.editor-page{padding:24px}.editor-heading h2{font-size:19px}.editor-buttons .button{flex:1;padding:12px}.editor-footer{align-items:flex-start}.editor-footer .fine-print{font-size:10px}.story-book{padding:30px 25px}.prose{font-size:16px}.admin-grid{grid-template-columns:1fr}.account-list{padding:24px}.back-link{margin-bottom:22px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.user-menu>div>a{display:block;margin-bottom:8px}
.account-settings h2{font-size:21px}.key-settings{border-top:1px solid var(--border);padding-top:28px;margin-top:32px}.key-status{color:var(--accent);font-size:13px}.remove-key-form{margin-top:12px}
.ai-writer{border-top:1px solid var(--border);padding-top:20px;margin-top:24px}.ai-writer>summary{cursor:pointer;color:var(--accent);font-size:14px;font-weight:600}.ai-writer>p{margin:14px 0}.ai-writer form>label{display:block;font-size:13px;margin-bottom:8px}.editor-page #ai-instruction{font-family:inherit;font-size:14px;line-height:1.8;min-height:100px}.ai-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:10px}.ai-history{max-height:250px;overflow-y:auto;overscroll-behavior:contain;background:var(--bg);border:1px solid var(--border);border-radius:4px;padding:14px;margin:16px 0}.ai-history>div+div{border-top:1px solid var(--border);padding-top:12px;margin-top:12px}.ai-history strong{font-size:11px;color:var(--accent);font-weight:600}.ai-history p{font-size:13px;line-height:1.9;white-space:pre-wrap;overflow-wrap:anywhere;margin:6px 0 0}.ai-recovery{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.ai-result-panel{border-top:1px solid var(--border);padding-top:20px;margin-top:22px}.ai-result-panel>label{display:block;font-size:13px;font-weight:600;color:var(--accent);margin-bottom:10px}.editor-page #ai-result{min-height:220px;max-height:520px;overflow-y:auto}.ai-history-panel{margin:16px 0}.ai-history-panel>summary{cursor:pointer;color:var(--muted);font-size:12px}
.claim-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;justify-content:flex-end;max-width:420px;flex:0 1 auto}.claim-actions .delegate-help{flex-basis:100%;font-size:11px;margin:0}.claim-actions form{margin:0}.claim-actions .text-button{font-size:12px}.claim-panel:has(#delegate-form)>div:first-child{min-width:200px;flex:1}
@media(max-width:700px){.claim-actions{width:100%;max-width:none;justify-content:flex-start}.claim-actions form:not([hidden]){width:100%}.claim-panel:has(#delegate-form)>div:first-child{min-width:0}}
.ai-waiting{position:relative;display:grid;grid-template-columns:64px minmax(0,1fr);gap:14px 18px;margin:20px 0;padding:22px 20px;border:1px solid var(--border);border-radius:6px;background:var(--soft);overflow:hidden}.ai-waiting-art{position:relative;width:64px;height:64px;display:grid;place-items:center}.ai-orbit{position:absolute;inset:0;border:1px solid var(--border);border-top:2px solid var(--accent);border-radius:50%;animation:ai-orbit 4s linear infinite}.ai-paper-icon{display:grid;place-items:center;width:30px;height:38px;border:1px solid var(--accent);border-radius:2px 7px 7px 2px;color:var(--accent);background:var(--paper);font-family:'Songti SC',SimSun,serif;font-size:20px;animation:ai-breathe 2.8s ease-in-out infinite}.ai-ink-dot{position:absolute;width:5px;height:5px;border-radius:50%;background:var(--accent);animation:ai-breathe 2s ease-in-out infinite}.dot-one{right:2px;top:8px}.dot-two{left:4px;bottom:5px;animation-delay:.4s}.dot-three{right:5px;bottom:3px;animation-delay:.8s}.ai-waiting-copy strong{display:block;color:var(--accent);font-size:14px;font-weight:600}.ai-waiting-copy p{font-size:12px;color:var(--muted);line-height:1.8;margin:5px 0}.ai-waiting-time{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}.ai-skeleton{grid-column:1/-1;display:grid;gap:8px;padding-top:5px}.ai-skeleton span{display:block;width:100%;height:5px;border-radius:4px;background:var(--border);animation:ai-breathe 2.8s ease-in-out infinite}.ai-skeleton span:nth-child(2){width:88%;animation-delay:.2s}.ai-skeleton span:nth-child(3){width:58%;animation-delay:.4s}
@keyframes ai-orbit{to{transform:rotate(360deg)}}@keyframes ai-breathe{0%,100%{opacity:.45}50%{opacity:1}}
@media(prefers-reduced-motion:reduce){.ai-orbit,.ai-paper-icon,.ai-ink-dot,.ai-skeleton span{animation:none}}
@media(max-width:700px){.ai-actions{align-items:flex-start;flex-direction:column}.ai-actions .button{width:100%}}
.previous-page .previous-scroll{max-height:min(50vh,480px);min-height:160px;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--accent) var(--soft);padding-right:12px}
.turn-tree{position:relative;padding:24px 30px;margin-bottom:30px}
.turn-tree-heading{display:flex;justify-content:space-between;align-items:center;gap:18px}
.turn-tree-heading h2{font-size:22px;margin-bottom:0}.turn-tree-heading .eyebrow{margin-bottom:5px}
.turn-tree>.fine-print{margin:12px 0 4px}.turn-legend{display:flex;gap:16px;flex-wrap:wrap;font-size:11px;color:var(--muted)}
.turn-legend>span{display:inline-flex;align-items:center;gap:6px}.legend-dot{display:inline-block;width:11px;height:11px;border:1px dashed var(--muted);border-radius:50%}
.legend-dot.submitted{background:var(--accent);border:1px solid var(--accent)}.legend-dot.writing{border:2px solid var(--accent);box-shadow:0 0 0 2px var(--soft)}
.turn-scroll{max-width:100%;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:var(--accent) var(--soft);padding:8px 0}
.turn-chain{list-style:none;display:flex;width:max-content;min-width:100%;padding:8px 0 0;margin:0}
.turn-branch{position:relative;width:86px;flex:0 0 86px;text-align:center;padding-bottom:6px}
.turn-branch:not(:last-child):after{content:'';position:absolute;z-index:0;height:1px;top:22px;left:50%;width:100%;background:var(--border)}
.turn-branch.submitted:not(:last-child):after{background:var(--accent)}
.turn-node{position:relative;z-index:1;display:block;margin:0 auto;width:44px;height:44px;padding:0;line-height:1;border:1px dashed var(--muted);border-radius:50%;background:var(--paper);color:var(--muted);font-size:14px;font-variant-numeric:tabular-nums}
.submitted .turn-node{background:var(--accent);border:2px solid var(--accent);color:var(--button-ink)}
.writing .turn-node{border:2px solid var(--accent);color:var(--accent);box-shadow:0 0 0 5px var(--soft)}
.available .turn-node{border:3px double var(--accent);color:var(--accent)}
.closed .turn-node{border-style:dotted;color:var(--muted)}
.turn-author{display:block;margin-top:12px;padding:0 4px;max-width:86px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;color:var(--muted);font-size:11px}
.turn-tooltip{position:absolute;z-index:20;width:300px;max-width:calc(100% - 16px);padding:16px 18px;background:var(--paper);border:1px solid var(--border);border-radius:6px;box-shadow:0 12px 30px #0002;color:var(--ink)}
.turn-tooltip>strong{font-family:'Songti SC',SimSun,serif;font-size:16px;font-weight:500}.turn-tooltip dl{display:grid;grid-template-columns:5em 1fr;gap:7px 10px;font-size:12px;margin:12px 0 0}
.turn-tooltip dt{color:var(--muted)}.turn-tooltip dd{margin:0;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
@media(max-width:700px){.turn-tree{padding:22px 18px}.turn-tree-heading{align-items:flex-start;flex-direction:column;gap:12px}.turn-legend{gap:12px}.previous-page .previous-scroll{max-height:45vh}}