/* ============================== tokens ================================== */
:root{
  --brand:#056974; --brand-dark:#044b52; --brand-soft:#e8f2f2; --brand-tint:#05697414;
  --red:#b12525; --amber:#9a6700; --amber-soft:#fff8e5;
  --ink:#212121; --muted:#616161; --faint:#8a9096;
  --bg:#ffffff; --bg-soft:#f3f4f6; --line:#e8eaed;
  --r-s:8px; --r-m:12px; --r-l:20px;
  --shadow-s:0 1px 2px rgb(17 24 39 / .06);
  --shadow-m:0 10px 30px rgb(17 24 39 / .12);
  --font:"Noto Sans","Noto Sans Tamil","Noto Sans Devanagari","Noto Sans Bengali","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --reader-size:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  -webkit-text-size-adjust:100%;text-size-adjust:100%;
  padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}
@supports (padding: max(0px)) {
  body{padding-left:max(env(safe-area-inset-left),0px);padding-right:max(env(safe-area-inset-right),0px)}
}
a{color:inherit;text-decoration:none;-webkit-tap-highlight-color:transparent}
img{display:block;max-width:100%}
button{font-family:inherit;-webkit-tap-highlight-color:transparent}
input,select,textarea{-webkit-tap-highlight-color:transparent}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;
  background:var(--bg-soft);border-radius:4px;padding:1px 5px}
[hidden]{display:none!important}
::selection{background:#05697426}
.muted{color:var(--muted)}

/* ============================== header ================================== */
.site-header{position:sticky;top:0;z-index:50;background:rgb(255 255 255 / .94);
  backdrop-filter:saturate(180%) blur(10px);-webkit-backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line)}
.header-inner{max-width:1240px;margin:0 auto;padding:0 24px;height:68px;
  display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:36px;height:36px;border-radius:11px;background:var(--brand);
  color:#fff;display:grid;place-items:center;box-shadow:0 4px 12px rgb(5 105 116 / .25);flex-shrink:0}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:19px;font-weight:700;letter-spacing:-.3px;white-space:nowrap}
.brand-sub{display:block;font-size:10px;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;color:var(--faint);margin-top:1px}

.search-box{flex:1;max-width:460px;position:relative;display:flex;align-items:center}
.search-box svg{position:absolute;left:14px;width:18px;height:18px;color:var(--faint);pointer-events:none}
.search-box input{width:100%;border:1px solid transparent;background:var(--bg-soft);
  border-radius:999px;padding:11px 18px 11px 42px;font-size:14px;color:var(--ink);
  outline:none;transition:background .15s,border-color .15s,box-shadow .15s}
.search-box input::placeholder{color:var(--faint)}
.search-box input:focus{background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-tint)}

.header-nav{display:flex;align-items:center;gap:6px;margin-left:auto;flex-shrink:0}
.nav-link{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:999px;
  font-size:13.5px;font-weight:600;color:var(--muted);white-space:nowrap;background:transparent;border:0;cursor:pointer}
.nav-link:hover{background:var(--bg-soft);color:var(--ink)}
.nav-link.is-active{background:var(--brand-soft);color:var(--brand)}
.nav-button{font-family:inherit}
/* 手机端底部导航：默认隐藏，仅在窄屏显示 */
.tabbar{display:none}
.nav-count{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;
  padding:0 6px;border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:11px;font-weight:700;color:var(--muted)}

/* language picker */
.lang-picker{position:relative;display:inline-flex;align-items:center}
.lang-label{display:inline-flex;align-items:center;gap:6px;padding:8px 30px 8px 12px;border-radius:999px;
  background:var(--bg-soft);font-size:13px;font-weight:600;color:var(--muted);cursor:pointer;
  white-space:nowrap;max-width:170px}
.lang-label:hover{background:var(--brand-soft);color:var(--brand)}
.lang-globe{font-size:12px;line-height:1}
.lang-current{overflow:hidden;text-overflow:ellipsis}
.lang-picker::after{content:"";position:absolute;right:13px;top:50%;width:6px;height:6px;
  border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;
  transform:translateY(-70%) rotate(45deg);color:var(--faint);pointer-events:none}
.lang-picker select{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer;
  border:0;background:transparent;font:inherit;color:inherit;appearance:none}
.lang-picker select:focus-visible+.lang-label,
.lang-picker:focus-within .lang-label{box-shadow:0 0 0 3px var(--brand-tint)}
.lang-picker select option{color:var(--ink)}

/* language switch: dim the page briefly while a new language is fetched */
body.lang-switching main{opacity:.55;transition:opacity .12s ease}

/* =============================== page =================================== */
.page{max-width:1240px;margin:0 auto;padding:28px 24px calc(84px + env(safe-area-inset-bottom));min-height:60vh}
.eyebrow{font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;opacity:.72}

/* origin warning */
.origin-banner{max-width:1240px;margin:16px auto 0;padding:12px 16px;border:1px solid #efd48a;
  background:var(--amber-soft);color:#5f4700;border-radius:12px;font-size:13px;line-height:1.6}
.origin-banner b{color:#4a3700}
.origin-banner code{background:#fff;border:1px solid #ead9a5}

/* boot error */
.boot-error{position:fixed;inset:0;z-index:200;background:rgb(255 255 255 / .96);
  display:grid;place-items:center;padding:24px}
.boot-card{max-width:640px;background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:34px 36px;box-shadow:0 24px 70px rgb(17 24 39 / .16);line-height:1.75}
.boot-card .brand-mark{margin-bottom:18px}
.boot-card h1{margin:0 0 12px;font-size:24px;letter-spacing:-.4px}
.boot-card p{margin:0 0 14px;color:var(--muted);font-size:14px}
.boot-card pre{margin:18px 0;background:#0b2b2e;color:#d8f3f4;border-radius:10px;
  padding:14px 18px;overflow:auto;font-size:13px}
.boot-card pre code{background:transparent;padding:0;color:inherit}
.boot-card a{color:var(--brand);text-decoration:underline}

/* hero */
.hero{position:relative;overflow:hidden;border-radius:var(--r-l);
  background:linear-gradient(112deg,#056974 0%,#067c85 52%,#0a8f92 100%);
  color:#fff;padding:42px 48px;display:flex;align-items:center;gap:32px;min-height:236px}
.hero:before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  right:-160px;top:-240px;background:rgb(255 255 255 / .08)}
.hero:after{content:"";position:absolute;width:320px;height:320px;border-radius:50%;
  right:120px;bottom:-220px;background:rgb(255 255 255 / .06)}
.hero-copy{position:relative;z-index:2;max-width:610px}
.hero-line{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:rgb(255 255 255 / .82)}
.hero-loading{font-size:clamp(20px,2.4vw,26px);font-weight:800;letter-spacing:.02em;
  color:rgb(255 255 255 / .95)}
.hero h1{margin:12px 0 12px;font-size:clamp(28px,3.2vw,40px);line-height:1.16;
  letter-spacing:-.6px;font-weight:700}
.hero p{margin:0;font-size:14.5px;line-height:1.72;color:rgb(255 255 255 / .86);max-width:54ch}
.hero-stats{display:flex;gap:34px;margin-top:26px;flex-wrap:wrap}
.hero-stats b{display:block;font-size:23px;line-height:1.1;letter-spacing:-.4px}
.hero-stats span{display:block;margin-top:5px;font-size:11.5px;color:rgb(255 255 255 / .72)}
.hero-actions{display:flex;gap:10px;margin-top:26px;flex-wrap:wrap}
.hero-btn{display:inline-flex;align-items:center;gap:7px;border-radius:999px;
  padding:10px 20px;font-size:13.5px;font-weight:700;border:1px solid rgb(255 255 255 / .45);
  color:#fff;transition:background .15s,color .15s}
.hero-btn svg{width:15px;height:15px}
.hero-btn:hover{background:rgb(255 255 255 / .14)}
.hero-btn.solid{background:#fff;color:var(--brand);border-color:#fff}
.hero-btn.solid:hover{background:#eef7f7}
.hero-art{position:relative;z-index:2;margin-left:auto;display:flex;align-items:center;
  padding-right:12px;flex-shrink:0}
.hero-art a{position:relative;display:block;width:118px;aspect-ratio:2/3;border-radius:10px;transition:transform .22s ease}
.hero-art a:hover{transform:translateY(-6px);z-index:5}
.hero-art img{width:118px;aspect-ratio:2/3;object-fit:cover;border-radius:10px;
  border:3px solid rgb(255 255 255 / .22);box-shadow:0 18px 38px rgb(0 0 0 / .32);
  background:#0a6a73}
.hero-art .cover-fallback{position:absolute;inset:0;width:auto;height:auto;aspect-ratio:auto;
  border-radius:10px;padding:12px;
  border:3px solid rgb(255 255 255 / .22);box-shadow:0 18px 38px rgb(0 0 0 / .32);
  background:linear-gradient(140deg,#0a8f92,#04525a);color:#fff;font-size:12px;
  font-weight:600;text-align:center;display:flex;align-items:center;justify-content:center}
.hero-art a+a{margin-left:-38px}
.hero-art a:nth-child(1){transform:rotate(-7deg) translateY(8px);z-index:1}
.hero-art a:nth-child(2){transform:rotate(-1deg) translateY(-2px);z-index:2}
.hero-art a:nth-child(3){transform:rotate(6deg) translateY(10px);z-index:3}
.hero-art a:nth-child(1):hover{transform:rotate(-7deg) translateY(2px)}
.hero-art a:nth-child(2):hover{transform:rotate(-1deg) translateY(-8px)}
.hero-art a:nth-child(3):hover{transform:rotate(6deg) translateY(4px)}

/* shelf */
.shelf{margin-top:46px}
.shelf-head{display:flex;align-items:baseline;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.shelf-head h2{margin:0;font-size:23px;letter-spacing:-.4px;font-weight:700}
.shelf-head p{margin:0;color:var(--muted);font-size:13px;line-height:1.5}
.shelf-head .pill{margin-left:auto;background:var(--bg-soft);border-radius:999px;
  padding:5px 12px;font-size:12px;font-weight:700;color:var(--muted);white-space:nowrap}
.row{display:flex;gap:20px;overflow-x:auto;padding:6px 2px 16px;
  scroll-snap-type:x proximity;scrollbar-width:thin;scrollbar-color:#d7dbdf transparent}
.row::-webkit-scrollbar{height:8px}
.row::-webkit-scrollbar-thumb{background:#dfe3e6;border-radius:99px}
.row .book-card{flex:0 0 178px;scroll-snap-align:start}

/* book card */
.book-card{display:flex;flex-direction:column;min-width:0;position:relative;color:inherit}
a.book-card{transition:color .15s}
.book-cover{position:relative;display:block;aspect-ratio:2/3;border-radius:var(--r-s);
  overflow:hidden;background:linear-gradient(140deg,#e8f2f2,#f3f4f6);box-shadow:var(--shadow-s)}
a.book-card:hover .book-cover{transform:translateY(-4px);box-shadow:var(--shadow-m)}
.book-cover{transition:transform .18s ease,box-shadow .18s ease}
.book-cover img{width:100%;height:100%;object-fit:cover}
.cover-fallback{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  padding:14px;text-align:center;font-size:12.5px;font-weight:600;color:var(--brand);
  line-height:1.5;overflow:hidden;background:linear-gradient(140deg,#e8f2f2,#f3f4f6)}
.rating{position:absolute;top:8px;right:8px;z-index:2;display:inline-flex;align-items:center;gap:4px;
  background:rgb(5 105 116 / .93);color:#fff;font-size:11.5px;font-weight:700;
  padding:3px 7px;border-radius:6px;line-height:1.2}
.rating svg{width:11px;height:11px}
.cover-badge{position:absolute;left:0;right:0;bottom:0;z-index:2;display:flex;align-items:center;gap:5px;
  padding:28px 10px 9px;font-size:11.5px;font-weight:600;color:#fff;
  background:linear-gradient(to top,rgb(0 0 0 / .8),rgb(0 0 0 / 0))}
.cover-badge svg{width:12px;height:12px;flex-shrink:0}
.tag-catalog{position:absolute;top:8px;left:8px;z-index:2;background:rgb(255 255 255 / .94);
  color:var(--muted);font-size:10.5px;font-weight:700;padding:3px 7px;border-radius:6px;
  letter-spacing:.02em}
.book-title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin:10px 2px 0;font-size:14px;font-weight:600;line-height:1.42;min-height:2.84em}
a.book-card:hover .book-title{color:var(--brand)}
.book-meta{margin:4px 2px 0;font-size:12px;color:var(--faint);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}

/* chips */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.chip{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:999px;
  padding:7px 15px;font-size:13px;font-weight:600;cursor:pointer;transition:all .14s}
.chip:hover{border-color:#b9d7d7;color:var(--brand);background:var(--brand-soft)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff}

/* grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(158px,1fr));gap:30px 22px}
.empty{padding:54px 0;text-align:center;color:var(--faint);font-size:14px}

/* ============================== series ================================== */
.book-hero{display:flex;gap:30px;align-items:flex-end;padding:14px 0 32px;border-bottom:1px solid var(--line)}
.book-hero-cover{position:relative;width:136px;aspect-ratio:2/3;overflow:hidden;border-radius:10px;
  box-shadow:0 16px 34px rgb(17 24 39 / .2);flex-shrink:0;background:var(--bg-soft)}
.book-hero-cover img{width:100%;height:100%;object-fit:cover}
.book-hero-cover.fallback{display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#e8f2f2,#f3f4f6);color:var(--brand);
  font-size:12px;font-weight:600;text-align:center;padding:12px}
.book-hero h1{margin:8px 0 14px;font-size:clamp(24px,3vw,34px);line-height:1.22;
  letter-spacing:-.5px;word-break:break-word}
.book-stats{display:flex;flex-wrap:wrap;gap:8px}
.stat-pill{display:inline-flex;align-items:center;gap:5px;border-radius:999px;
  padding:5px 12px;font-size:12px;font-weight:600;background:var(--bg-soft);color:var(--muted)}
.stat-pill.brand{background:var(--brand);color:#fff}
.stat-pill.brand svg{width:12px;height:12px}
.book-note{margin:16px 0 0;font-size:13px;color:var(--muted);line-height:1.65;max-width:70ch;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.book-actions{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:9px 18px;
  font-size:13px;font-weight:600;border:1px solid var(--line);color:var(--muted);background:#fff;cursor:pointer}
.btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-dark);color:#fff}
.btn[aria-disabled="true"],.btn:disabled{opacity:.45;pointer-events:none}

.parts{margin-top:36px}
.parts-head{display:flex;align-items:baseline;gap:12px;margin-bottom:10px;flex-wrap:wrap}
.parts-head h2{margin:0;font-size:22px;letter-spacing:-.35px}
.parts-head span{font-size:12.5px;color:var(--faint)}
.part-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.part-list li{border-bottom:1px solid var(--line)}
.part-link{display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:12px;align-items:center;
  padding:13px 14px;border-radius:10px;transition:background .12s}
.part-link:hover{background:var(--brand-soft)}
.part-no{font-size:12px;font-weight:700;color:var(--faint);font-variant-numeric:tabular-nums}
.part-main{min-width:0}
.part-title{display:block;font-size:14px;font-weight:600;line-height:1.45;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.part-meta{display:block;margin-top:3px;font-size:11.5px;color:var(--faint)}
.part-badge{font-size:11px;font-weight:700;border-radius:999px;padding:4px 10px;white-space:nowrap}
.part-badge.free{background:#e7f4ee;color:#0b6b42}
.part-badge.locked{background:#fdecec;color:var(--red)}
.parts-more{display:flex;justify-content:center;margin-top:22px}

.reader-toolbar{display:flex;align-items:center;gap:12px;padding:2px 0 18px;flex-wrap:wrap}
.back-link{display:inline-flex;align-items:center;gap:5px;padding:8px 14px;border-radius:999px;
  border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--muted);flex-shrink:0;background:#fff}
.back-link:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft)}
.reader-title-wrap{min-width:0;display:flex;flex-direction:column;flex:1}
.reader-title{font-size:14px;font-weight:700;white-space:nowrap;overflow:hidden;
  text-overflow:ellipsis;max-width:52vw}
.reader-sub{font-size:11.5px;color:var(--faint);margin-top:1px}
.reader-tools{display:flex;align-items:center;gap:8px;flex-shrink:0;margin-left:auto}
.font-tools{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:#fff}
.font-tools button{border:0;background:transparent;padding:7px 12px;font-size:12.5px;
  font-weight:700;color:var(--muted);cursor:pointer}
.font-tools button:hover{background:var(--bg-soft);color:var(--brand)}
.toc-toggle{display:none}

/* ============================== reader ================================== */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--brand);
  z-index:60;transition:width .08s linear;border-radius:0 3px 3px 0;box-sizing:content-box}
.reader-page{max-width:1120px;margin:0 auto;padding:0 24px 30px}
.reader-layout{display:grid;grid-template-columns:262px minmax(0,1fr);gap:56px;
  padding-top:36px;align-items:start}
.toc-panel{position:sticky;top:94px;max-height:calc(100vh - 128px);overflow:auto;
  padding-right:6px;scrollbar-width:thin}
.toc-panel h3{margin:0 0 12px;font-size:11px;font-weight:700;letter-spacing:.13em;
  text-transform:uppercase;color:var(--faint);display:flex;justify-content:space-between}
.toc-panel h3 span{letter-spacing:0;text-transform:none;font-weight:600}
.toc-panel ol{list-style:none;margin:0;padding:0;border-left:1px solid var(--line)}
.toc-link{display:flex;align-items:baseline;gap:8px;padding:8px 12px;margin-left:-1px;
  border-left:2px solid transparent;font-size:13px;color:var(--muted);line-height:1.45;
  transition:background .12s,color .12s}
.toc-link:hover{color:var(--brand);background:var(--brand-soft)}
.toc-link.is-active{border-left-color:var(--brand);color:var(--brand);
  font-weight:600;background:var(--brand-soft)}
.toc-no{font-size:11px;color:var(--faint);min-width:17px;font-variant-numeric:tabular-nums}
.toc-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.toc-words{font-size:10.5px;color:var(--faint);font-variant-numeric:tabular-nums}
.toc-lock{font-size:10px;color:var(--red)}
.toc-locked{margin:16px 0 0;padding:12px 13px;border-radius:10px;background:var(--bg-soft);
  color:var(--muted);font-size:12px;line-height:1.65}
.toc-locked b{color:var(--ink)}
.reader{max-width:720px;min-width:0}
.chapter{padding-bottom:40px;margin-bottom:40px;border-bottom:1px solid var(--line);
  scroll-margin-top:92px}
.chapter:last-child{border-bottom:0;margin-bottom:0}
.chapter-kicker{font-size:11px;font-weight:700;letter-spacing:.17em;text-transform:uppercase;
  color:var(--brand)}
.chapter-title{margin:8px 0 7px;font-size:clamp(22px,2.5vw,28px);line-height:1.3;
  letter-spacing:-.35px;word-break:break-word}
.chapter-meta{font-size:12px;color:var(--faint);margin-bottom:26px}
.prose{font-size:var(--reader-size);line-height:1.9;color:#262626;overflow-wrap:break-word}
.prose p{margin:0 0 .95em}
.prose p:empty{display:none}
.prose .ta-center{text-align:center}
.prose .ta-right{text-align:right}
.prose .ta-justify{text-align:justify}
.prose h1,.prose h2,.prose h3,.prose h4{font-size:1.12em;line-height:1.45;margin:1.5em 0 .65em}
.prose img{max-width:100%;height:auto;border-radius:10px;margin:1.3em auto}
.prose blockquote{margin:1.3em 0;padding:2px 0 2px 18px;border-left:3px solid var(--brand);
  color:var(--muted);font-style:italic}
.prose a{color:var(--brand);text-decoration:underline}
.prose ul,.prose ol{margin:0 0 1.15em;padding-left:1.5em}
.prose li{margin:.28em 0}
.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.chapter-nav{display:flex;gap:10px;margin-top:32px;flex-wrap:wrap;align-items:center}
.chapter-nav .spacer{flex:1}
.key-hint{margin-top:26px;font-size:11.5px;color:var(--faint)}
.key-hint kbd{font-family:inherit;background:var(--bg-soft);border:1px solid var(--line);
  border-bottom-width:2px;border-radius:5px;padding:1px 6px;font-size:11px;color:var(--muted)}

/* paywall */
.paywall{margin:8px 0 30px;padding:30px 28px;border:1px solid #f0d2d2;border-radius:16px;
  background:linear-gradient(180deg,#fffafa,#fff);text-align:center}
.paywall-icon{width:48px;height:48px;margin:0 auto 14px;border-radius:50%;display:grid;place-items:center;
  background:#fdecec;color:var(--red);font-size:22px}
.paywall h2{margin:0 0 10px;font-size:21px;letter-spacing:-.3px}
.paywall p{margin:0 auto 20px;max-width:52ch;color:var(--muted);font-size:13.5px;line-height:1.75}
.paywall-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}

/* search */
.search-hero{padding:8px 0 24px;border-bottom:1px solid var(--line);margin-bottom:28px}
.search-hero h1{margin:0 0 8px;font-size:clamp(24px,3vw,32px);letter-spacing:-.5px}
.search-hero p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
.search-form-big{display:flex;gap:10px;margin-top:20px;max-width:640px}
.search-form-big input{flex:1;border:1px solid var(--line);border-radius:999px;padding:12px 18px;
  font-size:14px;outline:none;background:var(--bg-soft)}
.search-form-big input:focus{background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-tint)}
.search-count{margin:0 0 20px;font-size:12.5px;color:var(--faint)}

/* loading / error / empty */
.skeleton-row{display:flex;gap:20px;overflow:hidden;padding:6px 2px 16px}
.skeleton-card{flex:0 0 178px}
.skeleton-cover{aspect-ratio:2/3;border-radius:var(--r-s);background:linear-gradient(90deg,#eef0f2 25%,#f7f8f9 37%,#eef0f2 63%);
  background-size:400% 100%;animation:shimmer 1.3s ease infinite}
.skeleton-line{height:12px;border-radius:4px;margin:10px 2px 0;background:linear-gradient(90deg,#eef0f2 25%,#f7f8f9 37%,#eef0f2 63%);
  background-size:400% 100%;animation:shimmer 1.3s ease infinite}
.skeleton-line.short{width:62%}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:0 0}}
.loading-note{display:flex;align-items:center;gap:10px;color:var(--faint);font-size:13px;
  padding:18px 2px;margin-top:10px}
.spinner{width:16px;height:16px;border:2px solid #d8e6e6;border-top-color:var(--brand);
  border-radius:50%;animation:spin .8s linear infinite;flex-shrink:0}
@keyframes spin{to{transform:rotate(360deg)}}
.error-box,.empty-box{margin:48px auto;max-width:640px;padding:28px 30px;border:1px solid var(--line);
  border-radius:16px;background:#fff;text-align:center;box-shadow:var(--shadow-s)}
.error-box h2,.empty-box h2{margin:0 0 10px;font-size:20px}
.error-box p,.empty-box p{margin:0 auto 14px;color:var(--muted);font-size:13.5px;line-height:1.75;max-width:52ch}
.error-box .detail{margin-top:14px;font-size:11.5px;color:var(--faint);word-break:break-word;
  background:var(--bg-soft);border-radius:8px;padding:10px 12px;text-align:left}
.error-box button{margin-top:6px}

/* ============================== footer ================================== */
.site-footer{border-top:1px solid var(--line);background:#fafbfc;margin-top:80px;
  padding-bottom:env(safe-area-inset-bottom)}
.footer-inner{max-width:1240px;margin:0 auto;padding:48px 24px 30px;
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:36px}
.footer-brand .brand-text{font-size:17px}
.footer-brand p{margin:14px 0 0;font-size:13px;line-height:1.75;color:var(--muted);max-width:34ch}
.footer-col h4{margin:0 0 14px;font-size:11px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--faint)}
.footer-col a,.footer-col p{display:block;margin:0 0 10px;font-size:13.5px;line-height:1.6;color:var(--muted)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{max-width:1240px;margin:0 auto;padding:18px 24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--faint)}

/* ============================= responsive =============================== */
@media (max-width:1080px){
  .hero-art{display:none}
  .header-nav .nav-link{padding:8px 11px}
  .header-inner{gap:18px}
}
@media (max-width:900px){
  .header-inner{padding:0 16px;gap:14px}
  .search-box{max-width:320px}
  .reader-layout{grid-template-columns:1fr;gap:0;padding-top:26px}
  .toc-panel{display:none;position:fixed;top:68px;left:0;right:0;bottom:0;z-index:45;
    background:#fff;max-height:none;padding:22px 24px 48px;border-top:1px solid var(--line);
    overflow:auto;box-shadow:0 20px 50px rgb(17 24 39 / .16)}
  .toc-panel.is-open{display:block}
  .toc-toggle{display:inline-flex}
  .reader{max-width:none}
  .book-hero{padding:10px 0 26px;gap:22px}
  .book-hero-cover{width:108px}
  .reader-title{max-width:34vw}
}
@media (max-width:760px){
  .header-inner{height:auto;padding:8px 14px;flex-wrap:wrap;gap:8px 12px}
  .brand-text{font-size:16px}
  .brand-sub{font-size:9px;letter-spacing:.1em}
  .brand-mark{width:32px;height:32px;border-radius:9px}
  .search-box{order:3;flex-basis:100%;max-width:none}
  .search-box input{padding:12px 18px 12px 42px;font-size:16px} /* 16px 防止 iOS 聚焦缩放 */
  .header-nav{order:2;margin-left:auto;flex-wrap:wrap;justify-content:flex-end;row-gap:6px}
  /* 三个导航按钮改为底部固定栏，顶部只保留语言选择 */
  .header-nav .nav-link{display:none}
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;
    background:rgb(255 255 255 / .97);border-top:1px solid var(--line);
    -webkit-backdrop-filter:saturate(180%) blur(12px);backdrop-filter:saturate(180%) blur(12px);
    padding-bottom:env(safe-area-inset-bottom)}
  .tab-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    min-height:58px;padding:8px 4px;border:0;background:transparent;cursor:pointer;
    font-family:inherit;font-size:10.5px;font-weight:600;color:var(--muted);text-align:center;
    -webkit-tap-highlight-color:transparent}
  .tab-item svg{width:22px;height:22px}
  .tab-item.is-active{color:var(--brand)}
  .tab-item:active{background:var(--bg-soft)}
  .site-footer{padding-bottom:calc(78px + env(safe-area-inset-bottom))}
  /* 触达尺寸 ≥44px：图标/短标签导航 */
  .nav-link{min-height:44px;padding:10px 12px;font-size:12.5px;gap:4px}
  .lang-label{min-height:44px;padding:0 28px 0 12px;font-size:12.5px;max-width:132px}
  .page{padding:18px 16px calc(64px + env(safe-area-inset-bottom))}
  .hero{padding:30px 24px;border-radius:16px;min-height:0}
  .hero p{font-size:13.5px}
  .hero-stats{gap:24px;margin-top:22px}
  .hero-stats b{font-size:20px}
  .hero-btn{min-height:44px;padding:12px 20px}
  .shelf{margin-top:36px}
  .shelf-head h2{font-size:20px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:24px 16px}
  .footer-inner{grid-template-columns:1fr 1fr;gap:28px;padding:36px 16px 24px}
  .footer-brand{grid-column:1 / -1}
  .footer-col a{min-height:44px;display:flex;align-items:center;margin-bottom:2px;font-size:14px}
  .footer-bottom{padding:16px}
  .reader-page{padding:0 16px 24px}
  .book-hero{gap:18px;align-items:flex-start}
  .book-hero-cover{width:92px}
  .book-hero h1{font-size:22px;margin:6px 0 12px}
  .btn{min-height:44px;padding:12px 20px}
  .chapter{padding-bottom:38px;margin-bottom:38px}
  .reader-toolbar{gap:8px}
  .reader-title{max-width:100%}
  .reader-title-wrap{display:none}
  .reader-tools{margin-left:auto}
  .back-link{min-height:44px;padding:10px 16px}
  .font-tools button{min-height:44px;min-width:48px;padding:10px 14px;font-size:14px}
  .chapter-nav .btn{min-width:44px}
  .part-link{grid-template-columns:34px minmax(0,1fr) auto;padding:14px 8px;min-height:52px}
  .part-badge{font-size:10.5px;padding:3px 8px}
  .boot-card{padding:26px 22px}
  .toc-panel{top:0;padding:calc(22px + env(safe-area-inset-top)) 20px calc(120px + env(safe-area-inset-bottom))}
  .toc-link{padding:12px;min-height:44px;align-items:center}
  .toc-toggle{min-height:44px;padding:10px 16px}
  .chapter{scroll-margin-top:150px}
}

/* ======================= mobile / embedded WebView ====================== */
/* 目标：app 内嵌 WebView 内容页。保证安全区、44px 触达、无横向溢出。 */
@media (max-width:560px){
  .header-inner{padding:6px 12px;gap:6px 10px}
  .brand-text{font-size:15px}
  .brand-sub{display:none}
  .nav-link{padding:10px;font-size:12px;min-width:44px;justify-content:center}
  .nav-link .nav-label:empty{display:none}
  .lang-label{max-width:104px;padding:0 24px 0 10px;font-size:12px}
  .page{padding:14px 12px calc(56px + env(safe-area-inset-bottom))}
  .hero{padding:24px 18px;border-radius:14px}
  .hero-line{font-size:11px;letter-spacing:.1em}
  .hero-loading{font-size:20px}
  .hero h1{font-size:24px}
  .hero-stats{gap:18px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:20px 12px}
  .book-title{font-size:13px}
  .reader-page{padding:0 12px 20px}
  .reader-layout{padding-top:18px}
  .prose{line-height:1.85}
  .paywall{padding:24px 18px}
  .error-box,.empty-box{padding:24px 18px}
  .footer-inner{grid-template-columns:1fr;gap:22px;padding:28px 14px 20px}
  .part-link{grid-template-columns:28px minmax(0,1fr) auto;gap:8px}
}
/* 触屏设备：去掉 hover 悬停态的“粘滞”效果，避免点击后样式残留 */
@media (hover:none){
  .nav-link:hover,.lang-label:hover,.btn:hover,.back-link:hover,.hero-btn:hover,
  .part-link:hover,.toc-link:hover,.book-card:hover{background:inherit}
  .book-card:hover .book-cover img,.hero-art a:hover{transform:none}
}
@media print{
  .site-header,.toc-panel,.chapter-nav,.key-hint,.site-footer,.read-progress,.reader-toolbar,.tabbar{display:none!important}
  .reader-layout{display:block}
  .reader{max-width:none}
  .chapter{border:0;margin:0;padding:0}
  body{color:#000}
}

/* ============================ RTL (Urdu) ================================ */
/* 界面语言是乌尔都语时整体切到从右到左排版，同时镜像少数靠方向定位的细节。 */
html[dir="rtl"] .search-box svg{left:auto;right:14px}
html[dir="rtl"] .search-box input{padding:11px 42px 11px 18px}
html[dir="rtl"] .lang-label{padding:8px 12px 8px 30px}
html[dir="rtl"] .lang-picker::after{right:auto;left:13px;transform:translateY(-70%) rotate(-135deg)}
html[dir="rtl"] .parts-head,html[dir="rtl"] .shelf-head{text-align:right}
html[dir="rtl"] .toc-panel{text-align:right}
html[dir="rtl"] .prose{text-align:right}