/* ==========================================================================
   《仆人都是大帝》同人续写 — 站点样式
   设计参考: healthcare.storlab.cn — 纯 CSS, 无框架, 移动优先
   ========================================================================== */

:root{
  /* Brand — 玄幻气质: 青绿 + 暖金 */
  --brand:#0E7C7B;
  --brand-600:#0b6665;
  --brand-700:#084f4e;
  --brand-050:#e8f4f3;
  --accent:#C8923A;
  --accent-600:#a6762a;
  --accent-050:#fdf3df;

  /* Ink */
  --ink:#1a1f24;
  --ink-2:#3c5560;
  --ink-3:#6b8390;
  --line:#dce7e8;
  --line-2:#eef4f4;

  /* Surfaces */
  --bg:#fbfaf7;
  --bg-soft:#f3efe8;
  --bg-card:#ffffff;
  --bg-dark:#0a2a2f;

  /* Reading typography */
  --reading-max:720px;
  --reading-fs:19px;
  --reading-lh:1.85;

  /* System */
  --ok:#1f9d55;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(17,38,46,.06), 0 1px 3px rgba(17,38,46,.05);
  --shadow:0 4px 14px rgba(17,38,46,.07), 0 1px 3px rgba(17,38,46,.05);
  --shadow-lg:0 18px 40px rgba(17,38,46,.12);
  --maxw:1160px;
  --sans:"Inter","Source Sans 3",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --cjk:"Source Han Serif SC","Noto Serif SC","Songti SC","SimSun","Inter",sans-serif;
  --cjk-sans:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
}

/* 暗色主题 */
[data-theme="dark"]{
  --bg:#15191c;
  --bg-soft:#1d2326;
  --bg-card:#20272a;
  --ink:#e8edf0;
  --ink-2:#b8c2c8;
  --ink-3:#8593a0;
  --line:#2f3a3f;
  --line-2:#283237;
  --brand-050:#1f3534;
  --accent-050:#3a2f1c;
  --shadow-sm:0 1px 2px rgba(0,0,0,.3), 0 1px 3px rgba(0,0,0,.25);
  --shadow:0 4px 14px rgba(0,0,0,.4), 0 1px 3px rgba(0,0,0,.25);
  --shadow-lg:0 18px 40px rgba(0,0,0,.5);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--cjk-sans);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
  transition:background .25s ease,color .25s ease;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-600);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.22;margin:0 0 .5em;letter-spacing:-.01em;font-weight:700;color:var(--ink)}
h1{font-size:clamp(1.8rem,4.6vw,3rem)}
h2{font-size:clamp(1.4rem,2.8vw,2rem)}
h3{font-size:clamp(1.1rem,1.7vw,1.3rem)}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
li{margin:.35em 0}
hr{border:0;border-top:1px solid var(--line);margin:2.5rem 0}
strong{font-weight:650}
small{font-size:.86rem;color:var(--ink-3)}

.skip{position:absolute;left:-9999px;top:0;background:var(--bg);padding:.7rem 1rem;z-index:200}
.skip:focus{left:1rem;top:1rem;border-radius:8px;box-shadow:var(--shadow)}

/* ---------- Layout ---------- */
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:clamp(2.5rem,6vw,4.5rem) 0}
.section--soft{background:var(--bg-soft)}
.section--mint{background:var(--brand-050)}
.section--tight{padding:clamp(1.5rem,3vw,2.5rem) 0}
.center{text-align:center}
.narrow{max-width:760px;margin-left:auto;margin-right:auto}

.eyebrow{
  display:inline-block;font-size:.76rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--brand);background:var(--brand-050);
  padding:.35rem .7rem;border-radius:999px;margin-bottom:1rem;
}
.lede{font-size:1.1rem;color:var(--ink-2)}
.section-head{max-width:720px;margin:0 auto 2.5rem;text-align:center}
.section-head p{margin-bottom:0;color:var(--ink-2)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;justify-content:center;
  font:inherit;font-weight:650;font-size:.96rem;line-height:1;
  padding:.85rem 1.4rem;border-radius:999px;border:1.5px solid transparent;
  cursor:pointer;text-decoration:none !important;white-space:nowrap;
  transition:transform .12s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--primary{background:var(--accent);color:#3a2003;box-shadow:0 6px 16px rgba(200,146,58,.32)}
.btn--primary:hover{background:var(--accent-600)}
.btn--brand{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(14,124,123,.26)}
.btn--brand:hover{background:var(--brand-600)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--brand)}
.btn--sm{padding:.55rem .95rem;font-size:.86rem}

/* ---------- Site Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(251,250,247,.85);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease;
}
[data-theme="dark"] .site-header{background:rgba(21,25,28,.85)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{display:flex;align-items:center;gap:.65rem;font-weight:700;color:var(--ink);text-decoration:none;font-size:1.05rem}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,var(--brand),var(--brand-700));color:#fff;
  font-family:var(--cjk);font-weight:800;font-size:1.05rem;
}
.nav{display:flex;gap:.25rem;align-items:center}
.nav a{
  padding:.45rem .75rem;border-radius:8px;color:var(--ink-2);font-weight:550;font-size:.95rem;
}
.nav a:hover{background:var(--bg-soft);text-decoration:none;color:var(--ink)}
.nav-toggle{display:none;background:transparent;border:0;padding:.4rem;cursor:pointer;color:var(--ink)}
.nav-toggle svg{width:24px;height:24px}

@media (max-width:640px){
  .nav{display:none}
  .nav-toggle{display:inline-flex}
  .nav.open{display:flex;flex-direction:column;position:absolute;top:62px;right:12px;left:12px;
    background:var(--bg-card);border:1px solid var(--line);border-radius:14px;padding:.5rem;
    box-shadow:var(--shadow-lg)}
  .nav.open a{display:block;width:100%}
}

/* ---------- Hero ---------- */
.hero{
  padding:clamp(3rem,8vw,6rem) 0 clamp(2.5rem,6vw,4rem);
  background:
    radial-gradient(ellipse at top,rgba(14,124,123,.10),transparent 60%),
    linear-gradient(180deg,var(--bg) 0%,var(--bg-soft) 100%);
  position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(circle at 20% 30%,rgba(200,146,58,.18) 0,transparent 30%),
    radial-gradient(circle at 80% 60%,rgba(14,124,123,.18) 0,transparent 30%);
  pointer-events:none;
}
.hero-inner{position:relative;text-align:center}
.hero-title{
  font-family:var(--cjk);font-size:clamp(2rem,6vw,3.6rem);font-weight:800;
  background:linear-gradient(120deg,var(--ink),var(--brand-700));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  line-height:1.15;margin:.6em 0 .3em;letter-spacing:-.02em;
}
.hero-subtitle{font-size:clamp(1.05rem,2vw,1.3rem);color:var(--ink-2);max-width:680px;margin:0 auto 1.5em;font-family:var(--cjk)}
.hero-meta{
  display:inline-flex;flex-wrap:wrap;gap:.5rem;justify-content:center;
  margin:0 0 1.6em;
}
.hero-meta span{
  font-size:.82rem;background:var(--bg-card);border:1px solid var(--line);
  padding:.3rem .7rem;border-radius:999px;color:var(--ink-2);
}
.hero-cta{display:flex;gap:.7rem;justify-content:center;flex-wrap:wrap;margin-top:.5em}

/* ---------- Book Cover (SVG, inline) ---------- */
.cover{display:flex;justify-content:center;margin:0 auto 2rem;max-width:280px}
.cover svg{width:100%;height:auto;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}

/* ---------- Cards / Grid ---------- */
.card{
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--radius);padding:1.5rem;
  box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}

/* ---------- TOC (Table of Contents) ---------- */
.vol{margin-bottom:2.5rem}
.vol-head{
  display:flex;align-items:baseline;gap:.8rem;flex-wrap:wrap;
  padding:1rem 1.2rem;
  background:linear-gradient(90deg,var(--brand-050),transparent);
  border-left:4px solid var(--brand);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom:1rem;
}
.vol-head h2{margin:0;font-size:1.3rem;font-family:var(--cjk)}
.vol-tag{
  font-size:.72rem;font-weight:700;letter-spacing:.1em;
  background:var(--brand);color:#fff;padding:.2rem .55rem;border-radius:6px;
}
.vol-sub{font-size:.92rem;color:var(--ink-3);font-family:var(--cjk);margin-top:.25em}
.ch-list{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:.4rem;
}
.ch-link{
  display:flex;align-items:center;gap:.5rem;
  padding:.55rem .8rem;background:var(--bg-card);border:1px solid var(--line);
  border-radius:8px;font-size:.9rem;color:var(--ink);text-decoration:none;
  transition:all .15s ease;
}
.ch-link:hover{border-color:var(--brand);background:var(--brand-050);text-decoration:none;color:var(--brand-700)}
.ch-link .ch-num{
  font-family:var(--sans);font-size:.75rem;color:var(--ink-3);font-weight:600;
  background:var(--bg-soft);padding:.1rem .45rem;border-radius:5px;
}
.ch-link.is-original{border-left:3px solid var(--accent)}
.ch-link.is-original .ch-num{background:var(--accent-050);color:var(--accent-600)}
.ch-link.is-current{background:var(--brand);color:#fff;border-color:var(--brand);font-weight:650}
.ch-link.is-current .ch-num{background:rgba(255,255,255,.25);color:#fff}

/* ---------- Reader ---------- */
.reader{
  max-width:var(--reading-max);margin:0 auto;
  padding:1.5rem 22px calc(120px);
}
.reader-bar{
  position:fixed;bottom:0;left:0;right:0;z-index:40;
  background:rgba(251,250,247,.92);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  backdrop-filter:saturate(180%) blur(12px);
  border-top:1px solid var(--line);
  padding:.6rem 0;
  display:flex;align-items:center;justify-content:center;gap:.5rem;
  transition:transform .3s ease,background .25s ease;
}
[data-theme="dark"] .reader-bar{background:rgba(21,25,28,.92)}
.reader-bar.hidden{transform:translateY(110%)}
.reader-bar .btn{padding:.55rem .9rem;font-size:.85rem}
.reader-bar .ch-quick{
  border:1px solid var(--line);background:var(--bg-card);
  border-radius:999px;padding:.4rem .7rem;font:inherit;color:var(--ink);
  width:5.5em;text-align:center;
}

.reader-meta{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.5rem;
  padding:1.2rem 0 .8rem;border-bottom:1px solid var(--line);margin-bottom:1.5rem;
  color:var(--ink-3);font-size:.85rem;
}
.reader-meta .vol{font-family:var(--cjk);color:var(--brand-700);font-weight:600}

.reader-title{
  font-family:var(--cjk);font-size:clamp(1.4rem,3.5vw,2rem);
  font-weight:800;text-align:center;margin:1.5rem 0 1.8rem;color:var(--ink);
  letter-spacing:-.005em;
}
.reader-body{
  font-family:var(--cjk);font-size:var(--reading-fs);line-height:var(--reading-lh);
  color:var(--ink);text-align:justify;
}
.reader-body p{
  margin:0 0 1.1em;text-indent:2em;
  letter-spacing:.01em;
}
.reader-body p:first-child::first-letter{
  font-size:1.2em;font-weight:700;color:var(--brand-700);
}

.reader-end{
  margin:3rem 0 1rem;padding-top:1.5rem;border-top:1px dashed var(--line);
  text-align:center;color:var(--ink-3);font-size:.85rem;
}
.reader-nav{display:flex;gap:.6rem;justify-content:center;margin-top:1rem;flex-wrap:wrap}

/* Theme toggle */
.theme-toggle{
  background:transparent;border:1px solid var(--line);color:var(--ink-2);
  width:36px;height:36px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .2s ease;
}
.theme-toggle:hover{border-color:var(--brand);color:var(--brand)}
.theme-toggle svg{width:18px;height:18px}

/* Font-size adjust */
.fs-controls{
  display:inline-flex;align-items:center;background:var(--bg-soft);border-radius:999px;padding:.15rem;gap:.1rem;
}
.fs-controls button{
  background:transparent;border:0;color:var(--ink-2);
  width:28px;height:28px;border-radius:50%;cursor:pointer;font-size:.8rem;font-weight:700;
}
.fs-controls button:hover{background:var(--bg-card);color:var(--ink)}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-dark);color:#cbd5d8;
  padding:3rem 0 2rem;margin-top:4rem;font-size:.92rem;
}
.site-footer a{color:#aacfd0;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:2rem;margin-bottom:1.5rem}
.footer-col h4{color:#fff;font-size:.95rem;margin-bottom:.8rem}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin:.4em 0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:1rem;color:#7a8a8e;font-size:.85rem}
@media (max-width:640px){
  .footer-grid{grid-template-columns:1fr}
}

/* ---------- Status badges ---------- */
.status{
  display:inline-flex;align-items:center;gap:.35rem;font-size:.78rem;font-weight:600;
  padding:.25rem .55rem;border-radius:6px;
}
.status--wip{background:var(--accent-050);color:var(--accent-600)}
.status--wip::before{content:"";width:6px;height:6px;background:var(--accent);border-radius:50%;animation:pulse 1.5s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.status--done{background:var(--brand-050);color:var(--brand-700)}
.status--done::before{content:"";width:6px;height:6px;background:var(--brand);border-radius:50%}

/* ---------- Stats bar ---------- */
.stats{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.6rem;
  margin:1.5rem 0;
}
.stat{
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:1rem;text-align:center;
}
.stat-num{
  display:block;font-size:1.6rem;font-weight:800;color:var(--brand-700);
  font-family:var(--sans);
}
.stat-lbl{font-size:.82rem;color:var(--ink-3);margin-top:.2em}

/* ---------- Misc ---------- */
.text-muted{color:var(--ink-3)}
.center-mute{text-align:center;color:var(--ink-3);font-size:.9rem}
.divider{height:1px;background:var(--line);margin:2rem 0}
.callout{
  background:var(--brand-050);border-left:4px solid var(--brand);
  padding:1rem 1.2rem;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:1.5rem 0;
  font-size:.95rem;
}
.callout strong{color:var(--brand-700)}
kbd{
  display:inline-block;font-family:var(--sans);font-size:.82rem;
  background:var(--bg-soft);border:1px solid var(--line);border-bottom-width:2px;
  padding:.1rem .45rem;border-radius:5px;color:var(--ink-2);
}

/* Print: hide nav bar */
@media print{
  .site-header,.reader-bar,.nav,.theme-toggle,.fs-controls{display:none !important}
  body{background:#fff}
  .reader-body{font-size:18px}
}