*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
:root{
  --bg:#0e0c0b; --panel:#191513; --panel2:#221c18;
  --ink:#ece3d4; --muted:#9a8d7c; --accent:#b03a5b; --gold:#c9a24b;
  --gold-soft:#e0c277; --ember:#e8a24a;
  --line:rgba(201,162,75,.20); --line-2:rgba(201,162,75,.42);
  --shadow:0 18px 60px rgba(0,0,0,.55);
  --serif:"Songti TC","Noto Serif CJK TC","Source Han Serif TC","Georgia","Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang TC","Segoe UI",Roboto,sans-serif;
  --fs:18px;
}
[data-theme="light"]{
  --bg:#f7f3ea; --panel:#fffdf8; --panel2:#f2ece0;
  --ink:#241d1a; --muted:#7d7266; --accent:#a52a4d; --gold:#8a6d2f;
  --gold-soft:#a98a3f; --ember:#c07c2a;
  --line:rgba(36,29,26,.14); --line-2:rgba(36,29,26,.30);
  --shadow:0 12px 36px rgba(90,70,40,.16);
}
[data-lang="en"]{--serif:Georgia,"Times New Roman",serif}
[data-lang="en"] article p{text-align:left;hyphens:auto}
[data-lang="en"] article .chapter-title{letter-spacing:.5px}
[data-lang="en"] .cover h1{letter-spacing:3px}

html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--ink);
  font-family:var(--sans);
  line-height:1.9; font-size:16px;
  transition:background .35s ease,color .35s ease;
  -webkit-font-smoothing:antialiased;
}
/* 全局暗角 + 微光暈，提升電影感 */
body::before{
  content:""; position:fixed; inset:0; z-index:0; pointer-events:none;
  background:
    radial-gradient(120% 80% at 50% -10%, rgba(176,58,91,.10), transparent 60%),
    radial-gradient(100% 60% at 50% 110%, rgba(201,162,75,.08), transparent 55%);
}
a{color:inherit;text-decoration:none}

#bar{position:fixed;top:0;left:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--accent),var(--gold));
  z-index:60;transition:width .1s linear;}

.topbar{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;gap:10px;
  padding:10px 16px;
  background:color-mix(in srgb,var(--bg) 80%,transparent);
  backdrop-filter:saturate(1.5) blur(16px);
  -webkit-backdrop-filter:saturate(1.5) blur(16px);
  border-bottom:1px solid var(--line);
}
[data-theme="light"] .topbar{background:rgba(247,243,234,.82)}
.topbar .tb-title{
  flex:1;min-width:0;font-family:var(--serif);
  font-size:15px;font-weight:600;letter-spacing:.5px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.iconbtn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;flex:0 0 auto;
  border:1px solid var(--line);border-radius:11px;
  background:var(--panel);color:var(--ink);
  cursor:pointer;font-size:15px;font-family:var(--serif);
  transition:.2s;
}
.iconbtn:hover{border-color:var(--gold);color:var(--gold);transform:translateY(-1px)}
.iconbtn svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.8}
.tools{display:flex;gap:6px;flex:0 0 auto}

/* 語言切換 */
.langbar{display:flex;justify-content:center;padding:14px 16px 0}
.langsw{
  display:inline-flex;border:1px solid var(--line);border-radius:12px;
  overflow:hidden;background:var(--panel);
  box-shadow:0 6px 20px rgba(0,0,0,.25);
}
.langsw a,.langsw span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:56px;min-height:44px;padding:0 14px;
  font-size:14px;font-family:var(--sans);color:var(--muted);
  border-right:1px solid var(--line);transition:.2s;
}
.langsw a:last-child,.langsw span:last-child{border-right:0}
.langsw a:hover{color:var(--gold);background:rgba(201,162,75,.06)}
.langsw .cur{background:linear-gradient(135deg,rgba(176,58,91,.22),rgba(201,162,75,.14));color:var(--ink);font-weight:600}

.wrap{max-width:780px;margin:0 auto;padding:0 20px;position:relative;z-index:1}

/* ===== HERO / COVER ===== */
.cover{
  position:relative;overflow:hidden;
  min-height:100svh;
  display:flex;flex-direction:column;justify-content:center;align-items:center;
  text-align:center;padding:72px 20px 40px;
}
.cover::before{ /* 漂浮餘燼 + 暗角 */
  content:"";position:absolute;inset:-20% -10%;z-index:0;pointer-events:none;
  background:
    radial-gradient(3px 3px at 18% 30%, rgba(232,162,74,.55), transparent 60%),
    radial-gradient(2px 2px at 70% 22%, rgba(232,162,74,.40), transparent 60%),
    radial-gradient(2px 2px at 42% 70%, rgba(201,162,75,.45), transparent 60%),
    radial-gradient(3px 3px at 84% 64%, rgba(232,162,74,.40), transparent 60%),
    radial-gradient(2px 2px at 28% 85%, rgba(201,162,75,.35), transparent 60%);
  background-repeat:no-repeat;
  animation:embers 16s linear infinite;
  opacity:.9;
}
.cover::after{ /* 標題背後光暈 */
  content:"";position:absolute;z-index:0;pointer-events:none;
  left:50%;top:42%;transform:translate(-50%,-50%);
  width:120%;height:60%;
  background:radial-gradient(closest-side, rgba(176,58,91,.20), transparent 70%);
  filter:blur(10px);
}
.cover>*{position:relative;z-index:1}
.cover .kicker{
  font-size:12px;letter-spacing:7px;margin-bottom:20px;
  background:linear-gradient(90deg,var(--gold),var(--gold-soft),var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cover h1{
  font-family:var(--serif);font-size:clamp(44px,12vw,84px);
  margin:0 0 12px;letter-spacing:8px;font-weight:700;line-height:1.05;
  background:linear-gradient(180deg,#f4ead2,var(--gold-soft) 60%,var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  text-shadow:0 0 50px rgba(176,58,91,.35);
}
[data-theme="dark"] .cover h1{filter:drop-shadow(0 0 22px rgba(201,162,75,.25))}
.cover .en{
  font-family:var(--serif);font-style:italic;
  color:var(--muted);font-size:14px;letter-spacing:2px;margin-bottom:30px;
}
.rule{width:72px;height:2px;margin:0 auto 30px;opacity:.8;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
}
.cover .syn{
  font-family:var(--serif);font-size:16.5px;line-height:2.2;
  color:var(--ink);opacity:.9;max-width:640px;margin:0 auto;
}
.stats{
  display:flex;justify-content:center;gap:14px;flex-wrap:wrap;
  margin:32px 0 6px;
}
.stats>div{
  padding:14px 22px;border:1px solid var(--line);border-radius:14px;
  background:color-mix(in srgb,var(--panel) 70%,transparent);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  color:var(--muted);font-size:12px;letter-spacing:1px;min-width:96px;
}
.stats b{display:block;color:var(--gold);font-size:22px;font-family:var(--serif);letter-spacing:0;margin-bottom:2px}
.resume{
  display:flex;align-items:center;justify-content:center;gap:10px;
  margin:30px auto 0;padding:14px 22px;max-width:440px;
  border:1px solid var(--gold);border-radius:13px;
  background:linear-gradient(135deg,rgba(176,58,91,.16),rgba(201,162,75,.12));
  font-family:var(--serif);color:var(--ink);font-size:15px;cursor:pointer;
  min-height:50px;transition:.22s;
}
.resume:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--gold-soft)}
.resume svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.8}

/* 滾動提示 */
.cover .scrollcue{
  position:absolute;bottom:22px;left:50%;transform:translateX(-50%);
  width:22px;height:22px;z-index:1;opacity:.6;
  border-right:2px solid var(--gold);border-bottom:2px solid var(--gold);
  transform:translateX(-50%) rotate(45deg);
  animation:cue 1.8s ease-in-out infinite;
}

/* ===== 目錄 ===== */
.toc-head{
  display:flex;align-items:baseline;gap:12px;
  margin:60px 0 20px;padding-bottom:14px;border-bottom:1px solid var(--line);
}
.toc-head h2{font-family:var(--serif);font-size:22px;margin:0;letter-spacing:4px}
.toc-head span{font-size:12px;color:var(--muted)}
.chlist{list-style:none;margin:0;padding:0}
.chitem{
  position:relative;overflow:hidden;
  display:flex;gap:16px;align-items:flex-start;
  padding:18px 20px;margin-bottom:14px;
  background:var(--panel);border:1px solid var(--line);border-radius:14px;
  transition:.22s;
}
.chitem::before{ /* 左側金紅漸層條，hover 顯現 */
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(var(--accent),var(--gold));opacity:0;transition:.22s;
}
.chitem::after{ /* 數字水印 */
  content:attr(data-slug);position:absolute;right:14px;top:6px;
  font-family:var(--serif);font-size:46px;font-weight:700;
  color:var(--gold);opacity:.05;letter-spacing:0;pointer-events:none;
}
.chitem:hover{transform:translateY(-3px);border-color:var(--line-2);box-shadow:var(--shadow)}
.chitem:hover::before{opacity:1}
.chitem .num{
  font-family:var(--serif);font-size:13px;color:var(--gold);
  min-width:34px;padding-top:3px;opacity:.85;letter-spacing:1px;
}
.chitem .body{flex:1;min-width:0}
.chitem .t{font-family:var(--serif);font-size:18px;font-weight:600;margin:0 0 4px}
.chitem .d{font-size:13px;color:var(--muted);line-height:1.7}
.chitem .meta{
  font-size:11px;color:var(--muted);margin-top:9px;
  display:flex;gap:12px;align-items:center;flex-wrap:wrap;
}
.chitem .read{display:inline-flex;align-items:center;gap:4px;color:var(--accent);font-size:11px}
.chitem .read svg{width:12px;height:12px;stroke:currentColor;fill:none;stroke-width:2.4}

/* ===== 章節內頁 ===== */
article{padding:36px 0 20px;font-family:var(--serif);font-size:var(--fs)}
article .chapter-title{font-size:1.7em;letter-spacing:3px;margin:0 0 6px;font-weight:700;
  background:linear-gradient(180deg,var(--ink),var(--gold-soft));-webkit-background-clip:text;background-clip:text;}
[data-theme="dark"] article .chapter-title{color:var(--ink);-webkit-text-fill-color:initial;}
article .ch-meta{
  font-family:var(--sans);font-size:12px;color:var(--muted);
  margin:0 0 34px;padding-bottom:18px;border-bottom:1px solid var(--line);
}
article h2{
  font-size:1.25em;margin:44px 0 16px;letter-spacing:2px;
  padding-left:12px;border-left:3px solid var(--gold);
}
article h3{font-size:1.08em;margin:32px 0 12px;color:var(--gold);letter-spacing:1px}
article p{margin:0 0 1.35em;text-align:justify;text-justify:inter-ideograph}
article hr{
  border:0;height:1px;margin:44px auto;width:38%;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:.5;
}
article blockquote{
  margin:30px 0;padding:20px 24px;
  background:var(--panel);border:1px solid var(--line);
  border-left:3px solid var(--gold);border-radius:0 12px 12px 0;
  font-size:.92em;line-height:2;color:var(--ink);opacity:.9;
}
article blockquote.lore{
  background:linear-gradient(135deg,rgba(176,58,91,.12),rgba(201,162,75,.08));
  border:1px solid rgba(201,162,75,.3);border-left:3px solid var(--accent);
  border-radius:12px;
}
article strong{color:var(--gold);font-weight:600}
article code{
  font-family:ui-monospace,Menlo,monospace;font-size:.85em;
  background:var(--panel2);padding:2px 6px;border-radius:5px;
}

.chnav{display:flex;gap:10px;justify-content:space-between;margin:56px 0 40px}
.chnav a{
  flex:1;display:flex;flex-direction:column;justify-content:center;
  min-height:56px;padding:12px 16px;
  border:1px solid var(--line);border-radius:13px;background:var(--panel);
  font-size:14px;transition:.2s;min-width:0;
}
.chnav a:hover{border-color:var(--gold);box-shadow:var(--shadow);transform:translateY(-2px)}
.chnav a .lbl{font-size:11px;color:var(--muted);margin-bottom:3px}
.chnav a .val{font-family:var(--serif);font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chnav a.next{text-align:right;align-items:flex-end}
.chnav a.mid{flex:0 0 auto;width:64px;align-items:center;text-align:center}
.chnav a.disabled{opacity:.32;pointer-events:none}

footer{
  position:relative;z-index:1;
  text-align:center;padding:40px 20px calc(48px + env(safe-area-inset-bottom));
  color:var(--muted);font-size:12px;border-top:1px solid var(--line);
}

/* ===== 預告片 ===== */
.trailer{margin:10px 0 4px;text-align:center}
.trailer-cap-top{font-family:var(--serif);font-size:12px;letter-spacing:5px;text-transform:uppercase;color:var(--gold-soft);margin:0 0 14px}
.trailer-frame{max-width:340px;margin:0 auto;border:1px solid var(--line-2);border-radius:16px;overflow:hidden;background:#000;box-shadow:0 18px 50px rgba(0,0,0,.5),0 0 0 1px rgba(201,162,75,.12);transition:.25s}
.trailer-frame:hover{transform:translateY(-2px);box-shadow:0 24px 60px rgba(0,0,0,.6),0 0 30px rgba(201,162,75,.18)}
.trailer-frame video{display:block;width:100%;height:auto}
.trailer-cap{font-family:var(--serif);font-size:13px;color:var(--muted);margin-top:14px;letter-spacing:1px}

/* ===== 動畫 ===== */
@keyframes embers{0%{transform:translateY(0)}100%{transform:translateY(-40px)}}
@keyframes cue{0%,100%{transform:translateX(-50%) rotate(45deg) translateY(0);opacity:.5}50%{transform:translateX(-50%) rotate(45deg) translateY(6px);opacity:.9}}
@keyframes rise{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
@keyframes reveal{to{opacity:1;transform:none}}

@media (prefers-reduced-motion:no-preference){
  .cover>*{animation:rise .9s both}
  .cover>.kicker{animation-delay:.05s}
  .cover>h1{animation-delay:.15s}
  .cover>.en{animation-delay:.28s}
  .cover>.rule{animation-delay:.38s}
  .cover>.syn{animation-delay:.48s}
  .cover>.stats{animation-delay:.62s}
  .cover>#resumeBox{animation-delay:.74s}
  @supports (animation-timeline:view()){
    .chitem{opacity:0;transform:translateY(26px);animation:reveal both linear;animation-timeline:view();animation-range:entry 2% cover 26%}
  }
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

@media (max-width:640px){
  .wrap{padding:0 16px}
  .cover{padding:48px 16px 36px;min-height:96svh}
  .topbar{padding:8px 12px}
  .topbar .tb-title{font-size:14px}
  .iconbtn{width:42px;height:42px}
  .chitem{padding:15px 16px;gap:12px}
  .chitem .num{min-width:26px}
  .chitem .t{font-size:16px}
  .chitem::after{font-size:38px}
  article{padding:26px 0 16px}
  .chnav{flex-wrap:wrap}
  .chnav a.mid{width:100%;order:3}
  .stats{gap:10px}
  .langsw a,.langsw span{min-width:48px}
}