/* 书脊 · 一栏手机优先。书按所在的那层书架分组，每本画成一条布面书脊；拍照、详情、照片定位都用全屏面板。 */
:root{
  --paper:#EDF1EE; --surface:#FAFCFB; --ink:#17201B; --muted:#58665F; --line:#D2DAD5; --plank:#BCC7C0;
  --cloth:#2B5A4A; --cloth-ink:#FFFFFF; --cloth-soft:#DAE7E0;
  --gilt:#A87516; --on-gilt:#FFFFFF; --gilt-soft:#F2E5C6;
  --warn:#A2451D; --warn-soft:#F5E0D5;
  --s1:#7A2F2F; --s2:#2C4766; --s3:#9C6E1E; --s4:#4E5C6A; --s5:#58672F; --s6:#5D3A5D; --s7:#2E6A68; --s8:#86472A;
  --spine-ink:#F6F1E6; --scrim:rgba(12,18,15,.55); --shadow:0 6px 20px rgba(20,40,30,.18);
  --f-display:"Noto Serif SC","Noto Serif CJK SC","Source Han Serif SC","Songti SC","STSong","SimSun",serif;
  --f-body:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root{
    --paper:#101613; --surface:#18211D; --ink:#E3EAE5; --muted:#93A399; --line:#29342F; --plank:#34413A;
    --cloth:#7DBB9F; --cloth-ink:#0D1511; --cloth-soft:#1D3128;
    --gilt:#E0B25B; --on-gilt:#1B1407; --gilt-soft:#3A2F17;
    --warn:#E8916A; --warn-soft:#3B231A;
    --s1:#9C4545; --s2:#3E5F86; --s3:#B5862F; --s4:#66778A; --s5:#6F8040; --s6:#7A5079; --s7:#3D8784; --s8:#A55C3A;
    --spine-ink:#FBF7EE; --scrim:rgba(0,0,0,.6); --shadow:0 6px 22px rgba(0,0,0,.5);
    color-scheme:dark;
  }
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
html.lock,html.lock body{overflow:hidden}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}
button{font:inherit;color:inherit;cursor:pointer}
a{color:inherit}
img{max-width:100%}
:focus-visible{outline:2px solid var(--cloth);outline-offset:2px}
h1,h2,h3{margin:0;text-wrap:balance}
p{margin:0}

/* 登录 */
.auth{min-height:100vh;min-height:100dvh;display:grid;place-items:center;padding:calc(24px + env(safe-area-inset-top,0px)) max(16px,env(safe-area-inset-right,0px)) calc(24px + env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px))}
.auth-card{width:100%;max-width:380px;display:grid;gap:16px}
.auth-shelf{display:flex;align-items:flex-end;gap:3px;padding:0 4px;border-bottom:7px solid var(--plank);width:max-content}
.auth-shelf span{display:block;width:var(--w,18px);height:var(--h,70px);background-color:var(--c);border-radius:2px 2px 0 0;background-image:linear-gradient(to bottom,transparent 6px,var(--gilt) 6px,var(--gilt) 7.5px,transparent 7.5px),linear-gradient(to top,transparent 7px,var(--gilt) 7px,var(--gilt) 8.5px,transparent 8.5px)}
.auth-brand{font-family:var(--f-display);font-weight:900;font-size:40px;letter-spacing:.1em;line-height:1.1}
.auth-lead{color:var(--muted);margin-top:-8px}
.auth-tabs{margin-top:6px}
#authForm{display:grid;gap:14px}
.form-err{color:var(--warn);font-size:14px}

.app{max-width:720px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:0 calc(132px + env(safe-area-inset-bottom,0px))}
.top{position:sticky;top:0;z-index:5;background:var(--paper);padding-top:calc(16px + env(safe-area-inset-top,0px));padding-bottom:12px;display:grid;gap:12px}
.brand-row{display:flex;align-items:center;gap:12px}
.brand{font-family:var(--f-display);font-weight:900;font-size:28px;letter-spacing:.08em;line-height:1}
.stats{color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.me{margin-left:auto;flex:none;width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--cloth);font-family:var(--f-display);font-weight:700;font-size:15px;display:grid;place-items:center;padding:0}
.me.big{width:52px;height:52px;font-size:22px;margin:0}
.tools{display:grid;gap:10px}
.search{display:flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding-inline:12px 4px}
.search svg{flex:none;color:var(--muted)}
.search input{flex:1;min-width:0;border:0;background:transparent;padding:11px 4px;font:inherit;font-size:16px;color:var(--ink);outline:none}
.search input::-webkit-search-cancel-button{display:none}
.icon-btn{flex:none;display:grid;place-items:center;width:40px;height:40px;border:0;border-radius:9px;background:transparent;color:var(--cloth)}
.icon-btn:hover{background:var(--cloth-soft)}
.filters{display:flex;flex-wrap:nowrap;gap:6px;align-items:center}
.chip{flex:none;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:5px 12px;font-size:13px;color:var(--muted)}
.chip[aria-pressed="true"]{background:var(--cloth);border-color:var(--cloth);color:var(--cloth-ink)}
.filters select{margin-left:auto;flex:1 1 90px;min-width:0;max-width:220px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;padding:5px 12px;font:inherit;font-size:13px}

.notice{margin-top:4px;background:var(--gilt-soft);color:var(--ink);border-radius:10px;padding:10px 14px;font-size:14px}
.check{margin-top:8px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px;display:grid;gap:10px;font-size:15px}
.check .row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.check strong{font-family:var(--f-display);font-weight:700}
.check.hit{border-color:var(--cloth);background:var(--cloth-soft)}
.check .x{margin-left:auto;border:0;background:transparent;color:var(--muted);font-size:13px}
.sum{color:var(--muted);font-size:14px;margin-top:6px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.loading{color:var(--muted);padding:40px 0;text-align:center}

#lib{display:grid;gap:24px;margin-top:10px}
.shelf-head{display:flex;align-items:baseline;gap:10px;margin-bottom:8px}
.shelf-head h2{font-family:var(--f-display);font-weight:700;font-size:17px;min-width:0}
.shelf-head .count{color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums;flex:none}
.shelf-head .link{margin-left:auto;flex:none}
.shelf-list{background:var(--surface);border:1px solid var(--line);border-bottom:6px solid var(--plank);border-radius:12px 12px 4px 4px;overflow:hidden}
.book{display:grid;grid-template-columns:14px minmax(0,1fr) auto;gap:14px;align-items:center;width:100%;padding:11px 14px;border:0;border-top:1px solid var(--line);background:transparent;text-align:left}
.book:first-child{border-top:0}
.book:hover{background:var(--cloth-soft)}
.spine{width:14px;height:46px;border-radius:2px;background-color:var(--c);background-image:linear-gradient(to bottom,transparent 5px,var(--gilt) 5px,var(--gilt) 6.5px,transparent 6.5px,transparent 8.5px,var(--gilt) 8.5px,var(--gilt) 10px,transparent 10px),linear-gradient(to top,transparent 5px,var(--gilt) 5px,var(--gilt) 6.5px,transparent 6.5px)}
.b-main{display:grid;gap:2px;min-width:0}
.b-title{font-family:var(--f-display);font-weight:600;font-size:16px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.b-meta{color:var(--muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pill{font-size:12px;padding:2px 9px;border-radius:999px;white-space:nowrap;border:1px solid transparent}
.st-unread{border-color:var(--line);color:var(--muted)}
.st-reading{background:var(--cloth-soft);color:var(--cloth)}
.st-done{background:var(--gilt-soft);color:var(--gilt)}

.link{border:0;background:transparent;color:var(--cloth);font-size:14px;padding:4px 2px;font-weight:600}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:10px;padding:11px 18px;font-weight:600;font-size:15px;text-decoration:none}
.btn:hover{border-color:var(--muted)}
.btn.primary{background:var(--cloth);border-color:var(--cloth);color:var(--cloth-ink)}
.btn.primary:hover{filter:brightness(1.06)}
.btn.small{padding:7px 13px;font-size:14px}
.btn.ghost{background:transparent}
.btn.wide{width:100%}
.btn.danger{color:var(--warn);border-color:var(--warn-soft);background:transparent}
.btn[disabled]{opacity:.5;cursor:default;filter:none}

.fabs{position:fixed;z-index:20;right:calc(16px + env(safe-area-inset-right,0px));bottom:calc(18px + env(safe-area-inset-bottom,0px));display:flex;gap:10px;align-items:center}
.fab{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:999px;padding:14px 22px;background:var(--cloth);color:var(--cloth-ink);font-weight:700;font-size:16px;box-shadow:var(--shadow)}
.fab-sec{border:1px solid var(--line);border-radius:999px;padding:11px 16px;background:var(--surface);color:var(--ink);font-size:14px;font-weight:600;box-shadow:var(--shadow)}

/* 空书架 */
.empty{margin-top:12px;display:grid;gap:16px}
.demo{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.demo-shelf{display:flex;align-items:flex-end;gap:3px;padding:18px 18px 0;border-bottom:8px solid var(--plank);overflow:hidden;-webkit-mask-image:linear-gradient(to right,#000 85%,transparent);mask-image:linear-gradient(to right,#000 85%,transparent)}
.ds{position:relative;flex:none;width:var(--w,34px);height:var(--h,150px);background-color:var(--c);border-radius:2px 2px 0 0;color:var(--spine-ink);font-family:var(--f-display);font-weight:600;font-size:13px;writing-mode:vertical-rl;letter-spacing:.12em;display:flex;align-items:center;justify-content:flex-start;padding-top:18px;background-image:linear-gradient(to bottom,transparent 7px,var(--gilt) 7px,var(--gilt) 8.5px,transparent 8.5px),linear-gradient(to top,transparent 9px,var(--gilt) 9px,var(--gilt) 10.5px,transparent 10.5px)}
.ds.flat{writing-mode:horizontal-tb;width:96px;height:26px;padding:0 0 0 8px;align-items:center;font-size:12px;letter-spacing:.04em;background-image:none;border-radius:2px}
.ds.hit::after{content:attr(data-n);position:absolute;top:-2px;left:-2px;writing-mode:horizontal-tb;background:var(--gilt);color:var(--on-gilt);font:600 11px/16px var(--f-body);min-width:16px;text-align:center;border-radius:0 0 4px 0}
.ds.hit{outline:2px solid var(--gilt);outline-offset:1px}
.stack{display:flex;flex-direction:column;gap:2px;align-self:flex-end}
.demo-list{display:grid;padding:4px 16px 12px}
.demo-row{display:flex;gap:10px;align-items:baseline;padding:8px 0;border-top:1px solid var(--line);font-size:14px}
.demo-row:first-child{border-top:0}
.demo-row b{font-family:var(--f-display);font-weight:600;font-size:15px}
.demo-row .n{flex:none;width:20px;height:20px;border-radius:4px;background:var(--gilt);color:var(--on-gilt);font-size:12px;display:grid;place-items:center;font-weight:600}
.demo-row .m{color:var(--muted);font-size:13px;margin-left:auto;white-space:nowrap}
.tag{display:inline-block;font-size:11px;letter-spacing:.12em;color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:1px 6px;margin:12px 16px 0}
.empty h2{font-family:var(--f-display);font-weight:700;font-size:22px}
.empty .lead{color:var(--muted);max-width:34em}
.empty .acts{display:flex;gap:10px;flex-wrap:wrap}

/* 全屏面板 */
.sheet{position:fixed;inset:0;z-index:50;background:var(--paper);overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
.sheet-head{position:sticky;top:0;z-index:3;background:var(--paper);border-bottom:1px solid var(--line);padding-top:calc(8px + env(safe-area-inset-top,0px));padding-bottom:8px;padding-left:max(8px,env(safe-area-inset-left,0px));padding-right:max(8px,env(safe-area-inset-right,0px));display:grid;grid-template-columns:1fr auto 1fr;align-items:center}
.sheet-head h2{font-family:var(--f-display);font-weight:700;font-size:17px;text-align:center}
.back{justify-self:start;border:0;background:transparent;color:var(--cloth);font-weight:600;padding:8px 10px;border-radius:8px}
.sheet-in{max-width:720px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:18px calc(40px + env(safe-area-inset-bottom,0px));display:grid;gap:18px}
.sheet-foot{position:sticky;bottom:0;z-index:3;background:var(--paper);border-top:1px solid var(--line);padding-top:12px;padding-bottom:calc(12px + env(safe-area-inset-bottom,0px));padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.sheet-foot .btn{max-width:688px;margin:0 auto;display:flex;width:100%}
.stack-col{display:grid;gap:18px}

.field{display:grid;gap:6px}
.lbl{font-size:13px;color:var(--muted);letter-spacing:.03em}
.field input,.field select,.field textarea{width:100%;font:inherit;font-size:16px;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px 12px}
.field textarea{resize:vertical;min-height:96px;line-height:1.6}
.hint{color:var(--muted);font-size:14px}
.pick-row{display:flex;gap:10px;flex-wrap:wrap}
.pick-row .btn{flex:1;min-width:130px}
.tips{display:grid;gap:6px;font-size:14px;color:var(--muted);padding:12px 14px;border:1px dashed var(--line);border-radius:10px}
.tips span:empty{display:none}

/* 识别 */
.photo-wrap{position:relative;width:100%;max-width:100%;border-radius:10px;overflow:hidden;background:var(--surface);border:1px solid var(--line)}
.photo-wrap img{display:block;width:100%;height:100%}
.boxes{position:absolute;inset:0}
.box{position:absolute;border:2px solid var(--gilt);border-radius:3px;background:transparent;padding:0;transition:opacity .2s}
.box .n{position:absolute;top:-2px;left:-2px;background:var(--gilt);color:var(--on-gilt);font-size:11px;line-height:16px;min-width:16px;padding:0 3px;text-align:center;border-radius:0 0 4px 0;font-weight:600;font-variant-numeric:tabular-nums}
.box.off{border-style:dashed;opacity:.45}
.box.hl{border-width:3px;box-shadow:0 0 0 2px var(--surface)}
.scan-status{display:grid;gap:10px;font-size:14px}
.scan-status strong{font-family:var(--f-display);font-weight:700;font-size:15px}
.scan-status .warn{color:var(--warn)}
.scan-status .acts{display:flex;gap:8px;flex-wrap:wrap}
.prog{display:flex;gap:4px}
.prog i{flex:1;height:5px;border-radius:3px;background:var(--line)}
.prog .seg-run,.prog .seg-wait{background:linear-gradient(90deg,var(--line),var(--cloth),var(--line));background-size:200% 100%;animation:slide 1.4s linear infinite}
.prog .seg-ok{background:var(--cloth)}
.prog .seg-fail{background:var(--warn)}
@keyframes slide{from{background-position:100% 0}to{background-position:-100% 0}}
.slist-head{display:flex;gap:14px;padding-bottom:4px}
.srow{display:grid;grid-template-columns:auto minmax(0,1fr);gap:10px;padding:10px 6px;border-top:1px solid var(--line);border-radius:6px;transition:background .3s}
.srow.off .sf{opacity:.5}
.srow.hl{background:var(--gilt-soft)}
.chk{display:grid;justify-items:center;gap:4px;padding-top:6px;cursor:pointer}
.chk input{width:20px;height:20px;margin:0;accent-color:var(--cloth)}
.chk .num{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}
.sf{display:grid;gap:2px;min-width:0}
.sf input{width:100%;border:1px solid transparent;background:transparent;border-radius:6px;padding:4px 6px;color:var(--ink);font:inherit}
.sf input:hover{border-color:var(--line)}
.sf input:focus{border-color:var(--line);background:var(--surface);outline:none}
.sf .st{font-family:var(--f-display);font-weight:600;font-size:16px}
.sf .sa{font-size:15px;color:var(--muted)}
.flags{display:flex;flex-wrap:wrap;gap:6px;padding:2px 6px 0;align-items:center}
.flags:empty{display:none}
.flag{font-size:12px;padding:1px 8px;border-radius:999px}
.flag.low{background:var(--warn-soft);color:var(--warn)}
.flag.dup{background:var(--gilt-soft);color:var(--gilt)}
.flags .pos{font-size:12px;color:var(--muted)}

/* 详情 */
.d-cover{display:grid;grid-template-columns:52px minmax(0,1fr);gap:18px;align-items:start}
.d-spine{width:52px;height:170px;border-radius:3px;background-color:var(--c);color:var(--spine-ink);writing-mode:vertical-rl;font-family:var(--f-display);font-weight:600;font-size:15px;letter-spacing:.1em;padding:22px 0 14px;display:flex;align-items:center;overflow:hidden;background-image:linear-gradient(to bottom,transparent 8px,var(--gilt) 8px,var(--gilt) 10px,transparent 10px,transparent 13px,var(--gilt) 13px,var(--gilt) 15px,transparent 15px),linear-gradient(to top,transparent 8px,var(--gilt) 8px,var(--gilt) 10px,transparent 10px)}
.d-spine span{max-height:100%;overflow:hidden}
.d-head{display:grid;gap:6px;min-width:0;align-content:start}
.d-title{font-family:var(--f-display);font-weight:700;font-size:23px;line-height:1.3;overflow-wrap:anywhere}
.d-author{color:var(--muted)}
.d-loc{font-size:14px}
.d-loc .cat{color:var(--muted)}
.d-head .btn{justify-self:start;margin-top:6px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--surface);justify-self:start}
.seg button{border:0;background:transparent;padding:9px 18px;font-size:15px;color:var(--muted)}
.seg button+button{border-left:1px solid var(--line)}
.seg button[aria-pressed="true"]{background:var(--cloth);color:var(--cloth-ink);font-weight:600}
.stars{display:flex;gap:2px}
.stars button{border:0;background:transparent;font-size:28px;line-height:1;padding:2px 3px;color:var(--line)}
.stars button.on{color:var(--gilt)}
details.edit{border:1px solid var(--line);border-radius:10px;background:var(--surface)}
details.edit summary{padding:11px 14px;cursor:pointer;color:var(--muted);font-size:14px}
details.edit .inner{display:grid;gap:14px;padding:0 14px 14px}
details.edit .field input,details.edit .field select{background:var(--paper)}
.saved{font-size:13px;color:var(--muted);min-height:1.2em}
.warnbox{background:var(--gilt-soft);border-radius:10px;padding:10px 14px;font-size:14px}

/* 照片里找书 */
.pv-scroll{overflow-x:auto;border-radius:10px;border:1px solid var(--line);background:var(--surface)}
.pv-stage{position:relative;width:100%;overflow:hidden}
.pv-stage.zoom{width:250%}
.pv-stage img{display:block;width:100%;height:100%}
.pv-stage .focusing .box:not(.on){opacity:.35}
.pv-stage .box.on{border-width:3px;box-shadow:0 0 0 9999px var(--scrim)}
.pv-cap{display:grid;gap:4px}
.pv-cap b{font-family:var(--f-display);font-weight:700;font-size:18px}
.pv-cap span{color:var(--muted);font-size:14px}
.pv-acts{display:flex;gap:10px;flex-wrap:wrap}
.pv-missing{padding:40px 16px;text-align:center;color:var(--muted)}

/* 账号 */
.me-card{display:flex;gap:14px;align-items:center}
.me-card b{font-family:var(--f-display);font-size:20px}

.toast{position:fixed;z-index:90;left:50%;bottom:calc(92px + env(safe-area-inset-bottom,0px));transform:translate(-50%,12px);background:var(--ink);color:var(--paper);padding:10px 16px;border-radius:10px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;max-width:calc(100% - 32px)}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media (prefers-reduced-motion: reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media (min-width:600px){.brand{font-size:32px}}