:root{color-scheme:dark;--bg:#080b10;--panel:#10151d;--panel2:#171e29;--panel3:#202938;--line:#2a3545;--text:#f3f6fa;--muted:#98a7ba;--accent:#d7e7ff;--accent2:#8fb8f3;--ink:#0c1420;--danger:#ffaaa8;--safeT:env(safe-area-inset-top,0px);--safeB:env(safe-area-inset-bottom,0px);--safeL:env(safe-area-inset-left,0px);--safeR:env(safe-area-inset-right,0px)}
*{box-sizing:border-box}html,body,#app{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Noto Sans TC",sans-serif}button,input,textarea{font:inherit}button{cursor:pointer}
.shell{min-height:100dvh;padding:calc(18px + var(--safeT)) max(18px,var(--safeR)) calc(90px + var(--safeB)) max(18px,var(--safeL))}
.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.08em}.brand-mark{width:25px;height:25px;display:block;object-fit:contain;filter:drop-shadow(0 0 10px rgba(169,219,227,.12))}.version{font-size:12px;color:var(--muted)}
.hero{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:8px 0 18px}.hero h1{font-size:32px;margin:0}.hero p{margin:6px 0 0;color:var(--muted)}
.primary,.secondary,.danger,.iconbtn,.chip{border:1px solid var(--line);border-radius:12px;padding:10px 14px;background:var(--panel2);color:var(--text);transition:background .18s,border-color .18s,transform .18s}.primary{background:var(--accent);color:var(--ink);border-color:transparent;font-weight:700}.secondary:hover,.iconbtn:hover,.chip:hover{background:var(--panel3);border-color:#40506a}.danger{color:var(--danger)}.iconbtn{width:42px;height:42px;padding:0}.muted{color:var(--muted)}.eyebrow{font-size:11px;letter-spacing:.14em;color:var(--accent2)}
.nav{position:fixed;z-index:100;left:50%;transform:translateX(-50%);bottom:calc(12px + var(--safeB));display:flex;gap:5px;max-width:calc(100vw - 16px);padding:6px;background:rgba(18,23,32,.94);border:1px solid var(--line);border-radius:18px;backdrop-filter:blur(18px);overflow-x:auto;scrollbar-width:none}.nav::-webkit-scrollbar{display:none}.nav button{position:relative;border:0;background:transparent;color:var(--muted);padding:10px 13px;border-radius:12px;white-space:nowrap}.nav button.active{background:var(--panel2);color:var(--text)}.nav-notice-dot{position:absolute;top:7px;right:9px;width:7px;height:7px;border-radius:50%;background:#d8b267;box-shadow:0 0 0 3px rgba(216,178,103,.11),0 0 10px rgba(216,178,103,.24);pointer-events:none}.nav button.active .nav-notice-dot{background:#e4bd70}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:16px}.book{border:0;background:none;color:inherit;text-align:left}.cover{aspect-ratio:3/4;border-radius:10px;background:linear-gradient(145deg,#273244,#111722);overflow:hidden;box-shadow:0 12px 28px rgba(0,0,0,.22);display:grid;place-items:center}.cover img{width:100%;height:100%;object-fit:cover}.book h3{margin:9px 0 3px;font-size:15px}.book small{color:var(--muted)}
.tagbar{display:flex;gap:8px;align-items:center;margin:0 0 18px}.tagscroll{display:flex;gap:7px;overflow:auto;flex:1;scrollbar-width:none}.tagscroll::-webkit-scrollbar{display:none}.chip{white-space:nowrap;padding:7px 12px;border-radius:999px}.chip.active{background:var(--accent);color:var(--ink)}.tagactions{display:flex;gap:6px;flex:none}
.archive-search{display:flex;align-items:center;gap:9px;max-width:520px;margin-bottom:14px;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:#090d13;color:var(--muted)}.archive-search:focus-within{border-color:var(--accent2);outline:2px solid rgba(143,184,243,.18)}.archive-search input{width:100%;height:43px;border:0;outline:0;background:transparent;color:var(--text)}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:16px}.idea{border:1px solid var(--line);background:var(--panel);border-radius:16px;overflow:hidden;aspect-ratio:4/3;text-align:left;color:inherit;padding:0}.idea-media{height:52%;background:#090c11;display:grid;place-items:center}.idea-media img{width:100%;height:100%;object-fit:cover}.idea-body{padding:13px}.idea h3{margin:3px 0 7px}.idea p{margin:0;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.fab{position:fixed;right:max(22px,var(--safeR));bottom:calc(86px + var(--safeB));width:54px;height:54px;border-radius:50%;border:0;background:var(--accent);color:var(--ink);font-size:28px;z-index:90}
.empty{padding:42px;border:1px dashed var(--line);border-radius:16px;color:var(--muted);text-align:center}
#modalRoot{position:relative;z-index:30000}.modalback{position:fixed;z-index:30000;inset:0;background:rgba(0,0,0,.78);display:grid;place-items:center;padding:calc(18px + var(--safeT)) max(18px,var(--safeR)) calc(18px + var(--safeB)) max(18px,var(--safeL));backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.modal{position:relative;width:min(680px,100%);max-height:100%;overflow:auto;overscroll-behavior:contain;background:var(--panel);border:1px solid #344257;border-radius:18px;padding:20px;box-shadow:0 28px 100px rgba(0,0,0,.72)}.modal-close,.panel-close,.overlay-close{width:40px;height:40px;min-width:40px;min-height:40px;max-width:40px;max-height:40px;padding:0!important;display:grid;place-items:center;border:1px solid var(--line);background:rgba(17,24,34,.92);color:var(--text);border-radius:12px;font-size:26px;line-height:1;z-index:12}.modal-close{position:absolute;top:16px;right:16px;margin:0;float:none}.modal>.eyebrow:first-of-type,.modal>h2:first-of-type{padding-right:52px}.modal-close+.project-editor .project-editor-top{padding-right:48px}.modal h2{margin-top:4px}.field{margin:14px 0}.field label{display:block;margin-bottom:7px;color:#cbd6e5}.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);background:#090d13;color:var(--text);border-radius:11px;padding:11px}.field input:focus,.field textarea:focus,.field select:focus{outline:2px solid rgba(143,184,243,.4);border-color:var(--accent2)}.field textarea{min-height:150px;resize:vertical}.actions{display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap;margin-top:16px}.picker{display:flex;gap:7px;flex-wrap:wrap}
.tagList{display:grid;gap:8px;margin-top:16px}.tagItem{min-height:54px;display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--line);background:#0b1017;border-radius:13px;padding:7px 8px 7px 14px;transition:transform .16s,background .16s,border-color .16s,box-shadow .16s}.tagItem.sorting{z-index:2;background:var(--panel3);border-color:var(--accent2);box-shadow:0 12px 30px rgba(0,0,0,.45);transform:scale(1.015)}.tagList.isSorting .tagItem:not(.sorting){transition:transform .12s}.tagSelect{display:flex!important;align-items:center;gap:11px;flex:1;margin:0!important;min-width:0}.tagSelect input{width:18px;height:18px;accent-color:var(--accent2)}.tagSelect span{overflow:hidden;text-overflow:ellipsis}.dragHandle{width:44px;height:40px;display:grid;align-content:center;gap:4px;padding:0 12px;border:0;border-radius:10px;background:transparent;touch-action:none;cursor:grab}.dragHandle:active{cursor:grabbing;background:rgba(143,184,243,.12)}.dragHandle span{display:block;height:2px;border-radius:2px;background:#8595aa}
.pages{display:grid;grid-template-columns:repeat(auto-fill,minmax(105px,1fr));gap:10px}.page{border:1px solid var(--line);background:#0c1118;border-radius:10px;padding:5px;position:relative;cursor:grab}.page img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:6px}.page small{display:block;padding:4px}.page.dragging{opacity:.4}.page .x{position:absolute;right:7px;top:7px;width:28px!important;height:28px!important;min-width:28px!important;min-height:28px!important;max-width:28px;max-height:28px;aspect-ratio:1/1;padding:0!important;border-radius:50%;display:grid;place-items:center;line-height:1;font-size:19px;overflow:hidden}
.reader{position:fixed;z-index:5000;inset:0;width:100vw;height:100dvh;background:#05070a;overflow:hidden;padding:var(--safeT) var(--safeR) var(--safeB) var(--safeL)}
.readerStage{position:absolute;top:var(--safeT);right:var(--safeR);bottom:var(--safeB);left:var(--safeL);display:flex;align-items:center;justify-content:center;overflow:hidden;touch-action:pan-y}.readerStage img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;transform-origin:center}
.readerTop,.readerBottom{position:absolute;z-index:3;left:var(--safeL);right:var(--safeR);display:flex;align-items:center;gap:8px;padding:10px 14px;background:linear-gradient(rgba(5,7,10,.94),rgba(5,7,10,.08));transition:opacity .22s,transform .22s}.readerTop{top:var(--safeT);justify-content:space-between}.readerBottom{bottom:var(--safeB);justify-content:center;background:linear-gradient(rgba(5,7,10,.05),rgba(5,7,10,.94));padding-bottom:12px}.reader.hideUI .readerTop{opacity:0;pointer-events:none;transform:translateY(-12px)}.reader.hideUI .readerBottom{opacity:0;pointer-events:none;transform:translateY(12px)}.readerTitle{max-width:38vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.readerTools{display:flex;gap:7px}
.aiPanel{position:absolute;z-index:4;right:calc(16px + var(--safeR));top:calc(72px + var(--safeT));width:min(360px,calc(100vw - 32px));background:rgba(18,23,32,.96);border:1px solid var(--line);border-radius:14px;padding:16px}.ai-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}.ai-panel-head .eyebrow{margin:0;min-width:0}.ai-panel-close{position:static;float:none;margin:0;flex:none}
.tagrow{display:flex;gap:6px;flex-wrap:wrap}.tag{font-size:12px;border:1px solid var(--line);border-radius:999px;padding:4px 8px;color:#b8c5d5}
.map{min-height:440px;border:1px solid var(--line);border-radius:18px;background:radial-gradient(circle at 50% 45%,#172130,#0c1017 60%);position:relative;overflow:hidden}.node{position:absolute;transform:translate(-50%,-50%);border:1px solid #50627b;background:#131b26;color:var(--text);border-radius:50%;width:96px;height:96px}.node.locked{opacity:.45}
.toast{position:fixed;z-index:20000;left:50%;transform:translateX(-50%);bottom:calc(105px + var(--safeB));background:#e7edf5;color:#111827;border-radius:999px;padding:9px 15px}
@media(max-width:650px){.hero{align-items:flex-start;flex-direction:column}.grid{grid-template-columns:repeat(2,1fr)}.cards{grid-template-columns:1fr}.nav button{padding:9px 9px;font-size:11px}.archive-search{max-width:none}.readerTop{align-items:flex-start;padding:8px}.readerTitle{display:none}.readerTools{margin-left:auto}.readerTop .secondary{padding:9px 10px;font-size:12px}}
@media(max-width:360px){.nav button{font-size:0;padding:9px 11px}.nav-symbol{margin:0}.nav .ui-icon{width:20px;height:20px}}
.fileButton{position:relative;display:inline-flex;align-items:center;cursor:pointer;overflow:hidden;min-height:44px}
.fileButton input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}
.pageMoves{display:flex;gap:6px}.pageMoves button{flex:1;min-height:36px;background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:6px}
button:disabled{opacity:.45;cursor:wait}
.idea.textOnly .idea-body{height:100%;padding:22px}.idea.textOnly p{-webkit-line-clamp:8}
.idea-body p{white-space:pre-wrap;color:var(--text)}
#toastRoot{position:relative;z-index:40000}
#importStatus,#cardStatus{color:var(--muted);overflow-wrap:anywhere}

/* V0.9.8 — book-tag shared AI guidance */
.tagItemTools{display:flex;align-items:center;gap:6px;flex:none}.tagSelect>span{display:grid;gap:3px;min-width:0}.tagSelect strong{font-weight:600;overflow:hidden;text-overflow:ellipsis}.tag-ai-rule-state{display:block;color:var(--accent2);font-size:11px;letter-spacing:.04em}.tag-ai-helper{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 14px;border:1px solid var(--line);border-radius:13px;background:rgba(143,184,243,.045)}.tag-ai-helper>div{min-width:0}.tag-ai-helper strong{display:block;margin-bottom:3px}.tag-ai-helper p{margin:0;color:var(--muted);font-size:12px;line-height:1.55}.tag-ai-helper button{flex:none}.ai-page-theme{position:relative;margin:0 0 16px;padding:13px 14px;border:1px solid rgba(205,174,99,.28);border-radius:13px;background:rgba(205,174,99,.055)}.ai-page-theme small{display:block;color:#c8ae72;letter-spacing:.08em;margin-bottom:5px}.ai-page-theme strong{display:block;font-size:17px}.ai-page-theme p{margin:5px 0 0;color:var(--muted);line-height:1.6}.ai-page-theme>span{display:inline-block;margin-top:7px;font-size:11px;color:#c9b783;border:1px solid rgba(205,174,99,.22);padding:3px 7px;border-radius:999px}
@media(max-width:650px){.tagItem{align-items:flex-start;flex-wrap:wrap}.tagSelect{width:100%}.tagItemTools{width:100%;justify-content:flex-end}.tag-ai-helper{align-items:flex-start;flex-direction:column}.tag-ai-helper button{width:100%}}