:root{color-scheme:light;--bg:#f7f7fb;--paper:#fff;--ink:#25243a;--muted:#686779;--line:#e2e1ec;--primary:#6354b7;--primary-hover:#504098;--tint:#eeebfa;--tint-ink:#4a3a91;--success-bg:#e5f4ed;--success-ink:#216347;--danger:#a93447;--shadow:0 16px 48px #21194b1f;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-size:15px;line-height:1.6}
@media(prefers-color-scheme:dark){:root{color-scheme:dark;--bg:#181722;--paper:#22212f;--ink:#f1eff9;--muted:#b9b6cb;--line:#454152;--primary:#ad9bfa;--primary-hover:#c2b4ff;--tint:#352d50;--tint-ink:#dacffc;--success-bg:#203c33;--success-ink:#a4e0be;--danger:#ed9baa;--shadow:0 16px 48px #0005}button.primary,button.danger{color:#181722}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}[hidden]{display:none!important}button,input,textarea{font:inherit}button{cursor:pointer;border:1px solid transparent;min-height:44px;padding:9px 17px;border-radius:10px;font-weight:600;background:var(--paper);color:var(--ink);overflow-wrap:anywhere}button:disabled{cursor:default;opacity:.55}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--primary);outline-offset:3px}.primary{background:var(--primary);color:#fff}.primary:hover:not(:disabled){background:var(--primary-hover)}.secondary{border-color:var(--line);background:var(--paper)}.secondary:hover:not(:disabled),.text-button:hover:not(:disabled){background:var(--tint)}.text-button{color:var(--tint-ink);padding:9px 12px;background:transparent}.danger{background:var(--danger);color:#fff}.full{width:100%;margin-top:16px}main{max-width:1240px;margin:auto;padding:28px max(20px,env(safe-area-inset-right)) 32px max(20px,env(safe-area-inset-left));padding-bottom:max(32px,env(safe-area-inset-bottom))}h1,h2,h3,p{margin:0}h1{font-size:25px;font-weight:700;letter-spacing:-.5px}h2{font-size:19px}h3{font-size:16px}.page-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.brand{display:flex;align-items:center;gap:12px;min-width:0}.brand p{color:var(--muted);font-size:13px}.brand-icon{background:var(--tint);color:var(--tint-ink);width:44px;height:44px;border-radius:13px;display:grid;place-items:center;font-size:32px;font-weight:700;flex-shrink:0}.notice{min-height:25px;color:var(--muted);margin-bottom:12px;font-size:14px;overflow-wrap:anywhere}.notice[data-error=true],.form-error{color:var(--danger)}.workspace{display:grid;grid-template-columns:285px minmax(0,1fr);gap:20px;align-items:start}aside,.detail-panel{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:20px;min-width:0}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:16px}.section-heading h2{font-size:16px}.chain-list{display:grid;gap:10px}.chain-item{border:1px solid var(--line);border-radius:12px;text-align:left;display:block;width:100%;padding:15px;background:var(--paper)}.chain-item[aria-pressed=true]{border-color:var(--primary);background:var(--tint)}.chain-item h3{overflow-wrap:anywhere;margin:8px 0}.chain-item footer{display:flex;align-items:center;justify-content:space-between;color:var(--muted);gap:8px;font-size:12px}.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:6px;background:var(--success-bg);color:var(--success-ink);font-size:12px;white-space:nowrap}.badge.closed{background:var(--bg);color:var(--muted)}.detail-panel{min-height:530px;padding:26px}.choose,.empty,.welcome{color:var(--muted);text-align:center;padding:64px 16px}.choose h2,.empty h3,.welcome h2{color:var(--ink);margin:12px 0 6px}.choose>span,.empty>span{display:block;font-size:36px;color:var(--tint-ink)}.empty{padding:28px 0}.empty p{margin-bottom:20px}.welcome{background:var(--paper);border:1px solid var(--line);border-radius:16px}.detail-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}#back{display:none}.chain-title{font-size:25px;line-height:1.4;margin-bottom:10px;overflow-wrap:anywhere}.muted{color:var(--muted);font-size:13px}.description{white-space:pre-wrap;overflow-wrap:anywhere;margin-top:20px}.stat-strip{display:flex;align-items:center;gap:18px;padding:20px 0;margin:22px 0;border-block:1px solid var(--line)}.stat-strip>div{display:flex;gap:9px;align-items:baseline;flex-shrink:0}.stat-strip strong{font-size:32px;line-height:1.2;color:var(--tint-ink)}.stat-strip span{font-size:13px;color:var(--muted)}.stat-strip p{font-size:13px;color:var(--muted);flex:1}.join-form{padding:20px;background:var(--bg);border:1px solid var(--line);border-radius:12px}.join-form h3{margin-bottom:14px}.form-grid{display:grid;grid-template-columns:155px minmax(0,1fr);gap:14px}label{display:block;font-size:14px;font-weight:600;margin-bottom:14px}input,textarea{display:block;width:100%;min-height:44px;background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:8px;margin-top:7px;padding:11px 12px;font-weight:400}textarea{resize:vertical}textarea::placeholder,input::placeholder{color:var(--muted);opacity:1}.form-footer{display:flex;gap:10px;justify-content:space-between;align-items:center;flex-wrap:wrap}.form-footer>div{display:flex;gap:8px;margin-left:auto}.participants-heading{margin-top:30px;margin-bottom:12px}.entries{margin:0;padding:0;list-style:none}.entry{display:grid;grid-template-columns:28px minmax(0,1fr);gap:12px;border-bottom:1px solid var(--line);padding:16px 0}.entry-number{color:var(--muted);font-size:13px;padding-top:4px}.entry-head{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:4px}.entry-name{font-size:14px;font-weight:600;overflow-wrap:anywhere}.mine{font-size:11px;color:var(--tint-ink);background:var(--tint);padding:0 5px;border-radius:4px}.entry time{font-size:12px;color:var(--muted);margin-left:auto}.entry-content{white-space:pre-wrap;overflow-wrap:anywhere;font-size:14px}.closed-notice{padding:16px;border-radius:10px;background:var(--bg);color:var(--muted);font-size:14px}.modal{position:fixed;inset:0;background:#14122466;display:flex;align-items:center;justify-content:center;padding:20px;z-index:10;overflow-y:auto}.modal-card{background:var(--paper);width:100%;max-width:500px;max-height:calc(100% - 24px);overflow:auto;padding:26px;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.modal-card.small{max-width:420px}.modal-card>p{margin:12px 0 20px}.modal-card form{margin-top:20px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.form-error{min-height:23px;font-size:13px}.modal-open{overflow:hidden}
@media(max-width:759px){main{padding:18px max(14px,env(safe-area-inset-right)) 24px max(14px,env(safe-area-inset-left))}.page-header{gap:10px}.brand-icon{width:38px;height:38px;border-radius:10px}.brand{gap:9px}.brand p{display:none}.page-header h1{font-size:23px}.workspace{grid-template-columns:minmax(0,1fr)}.detail-panel{display:none;padding:19px;min-height:0}.workspace[data-detail=true] #list-panel{display:none}.workspace[data-detail=true] .detail-panel{display:block}#back{display:block;margin-left:-12px}.chain-title{font-size:22px}.form-grid{grid-template-columns:minmax(0,1fr);gap:0}.join-form{padding:15px}.stat-strip{flex-wrap:wrap;gap:12px}.stat-strip p{flex-basis:100%;order:3}.stat-strip #close-chain{margin-left:auto}.form-footer .muted{flex-basis:100%;font-size:12px}.entry time{margin-left:0}.modal{padding:12px}.modal-card{padding:20px;max-height:calc(100% - 12px)}aside{padding:17px}.choose{padding:36px 12px}}
input,textarea{border-color:#8f899f}
@media(prefers-color-scheme:dark){input,textarea{border-color:#a19ab4}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
.overview-filters{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.overview-filters button[aria-pressed=true]{background:var(--tint);color:var(--tint-ink);border-color:var(--primary)}#overview{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:20px}.detail-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.notice:empty{display:none}