/* ============================================================
   四喜娱乐馆 · 全站共享样式  /assets/site.css
   移动优先；桌面端（≥901px）切换为左侧固定轨道
   ============================================================ */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;text-size-adjust:100%;}

body,h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol,pre{margin:0;}

ul,ol{list-style:none;padding:0;}

img,svg,video,canvas{display:block;max-width:100%;height:auto;}

a{color:inherit;text-decoration:none;}

button,input,select,textarea{font:inherit;color:inherit;}

button{background:none;border:0;padding:0;cursor:pointer;}

:focus-visible{outline:2px solid var(--cinnabar);outline-offset:3px;border-radius:6px;}

/* ---------- 2. tokens ---------- */
:root{
  --cinnabar:#C8322B;
  --cinnabar-deep:#A5221D;
  --amber:#D99A2B;
  --orange:#E8752F;
  --seal:#8C1F1A;
  --celadon:#4E7F6E;
  --ink:#1E1A18;
  --ink-soft:#3B3431;
  --paper:#FBF6EE;
  --fold:#F3E7D6;
  --mist:rgba(200,50,43,.08);
  --line:rgba(30,26,24,.14);
  --line-soft:rgba(30,26,24,.075);

  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",serif;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",ui-monospace,Consolas,"Courier New",monospace;

  --rail:118px;
  --band:44px;
  --head-h:88px;

  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 14px 40px rgba(30,26,24,.09);
}

@media (min-width:901px){
  :root{--head-h:44px;}
}

/* ---------- 3. base ---------- */
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:15px;
  font-weight:400;
  line-height:1.75;
  padding-left:0;
  padding-top:var(--head-h);
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

@media (min-width:901px){
  body{font-size:17px;padding-left:var(--rail);}
}

h1,h2,h3,h4{
  font-family:var(--serif);
  font-weight:700;
  line-height:1.2;
  letter-spacing:-.01em;
  color:var(--ink);
}

h1{font-weight:900;font-size:30px;}
h2{font-size:21px;}
h3{font-size:17px;}

@media (min-width:901px){
  h1{font-size:64px;}
  h2{font-size:40px;}
  h3{font-size:26px;}
}

strong,b{font-weight:700;}

/* ---------- 4. skip link ---------- */
.skip-link{
  position:fixed;
  left:12px;
  top:-120px;
  z-index:200;
  display:inline-block;
  background:var(--cinnabar);
  color:var(--paper);
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  padding:10px 18px;
  border-radius:0 0 12px 12px;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:0;}

/* ---------- 5. header ---------- */
.site-head{
  position:fixed;
  left:0;
  right:0;
  top:0;
  z-index:80;
  display:flex;
  flex-direction:column;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}

.site-head__bar{
  position:relative;
  z-index:3;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  height:54px;
  padding:0 14px;
  background:var(--paper);
}

/* --- 置顶信息带 --- */
.top-band{
  position:relative;
  display:flex;
  height:34px;
  overflow:hidden;
  color:#fff;
  background-color:var(--cinnabar);
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 6px,transparent 6px 14px);
}

.top-band__link{
  display:flex;
  align-items:center;
  gap:8px;
  width:100%;
  min-width:0;
  padding:0 14px;
  font-size:12px;
  letter-spacing:.01em;
  transition:background .22s var(--ease);
}
.top-band__link:hover{background:rgba(0,0,0,.14);}

.top-band__flag{
  flex:none;
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.1em;
  line-height:1.6;
  padding:0 7px;
  border:1px solid rgba(255,255,255,.55);
  border-radius:999px;
  color:rgba(255,255,255,.95);
}

.top-band__text{
  min-width:0;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

.top-band__arrow{
  flex:none;
  font-size:13px;
  color:rgba(255,255,255,.85);
}

.top-band__progress{
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:2px;
  z-index:2;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--amber),var(--orange));
  transition:transform .12s linear;
}

/* --- 品牌 --- */
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  min-width:0;
}

.brand__mark{
  flex:none;
  display:grid;
  place-items:center;
  width:32px;
  height:32px;
  background:var(--cinnabar);
  color:var(--paper);
  font-family:var(--serif);
  font-weight:900;
  font-size:17px;
  line-height:1;
  border-radius:10px 10px 10px 3px;
  transform:rotate(-3deg);
}

.brand__text{display:flex;flex-direction:column;min-width:0;}

.brand__name{
  display:block;
  font-family:var(--serif);
  font-weight:900;
  font-size:15px;
  line-height:1.2;
  letter-spacing:.01em;
  color:var(--ink);
  white-space:nowrap;
}

.brand__line{
  display:block;
  font-size:10.5px;
  line-height:1.5;
  color:var(--ink-soft);
  white-space:nowrap;
}

/* --- 抽屉开关 --- */
.nav-toggle{
  flex:none;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--fold);
  font-size:12.5px;
  font-weight:700;
  color:var(--ink);
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.nav-toggle[aria-expanded="true"]{
  background:var(--cinnabar);
  border-color:var(--cinnabar);
  color:var(--paper);
}

.nav-toggle__bars{display:grid;gap:3px;width:15px;}
.nav-toggle__bars i{display:block;height:2px;border-radius:2px;background:currentColor;}

.nav-toggle__label{letter-spacing:.04em;}

/* --- 侧边轨道 --- */
.rail{
  position:fixed;
  left:0;
  top:var(--head-h);
  bottom:0;
  z-index:2;
  width:min(84vw,320px);
  display:flex;
  flex-direction:column;
  padding:16px 16px 22px;
  background:var(--paper);
  border-right:1px solid var(--line);
  box-shadow:0 24px 50px rgba(30,26,24,.18);
  overflow-y:auto;
  overscroll-behavior:contain;
  transform:translateX(-102%);
  transition:transform .3s var(--ease);
}
.rail[data-open]{transform:translateX(0);}

.rail__list{display:flex;flex-direction:column;gap:4px;}

.rail__item{display:block;}

.rail__link{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  padding:12px 12px 12px 14px;
  border-radius:12px;
  font-size:15px;
  line-height:1.35;
  color:var(--ink-soft);
  transition:background .22s var(--ease),color .22s var(--ease);
}
.rail__link:hover{background:var(--mist);color:var(--cinnabar);}

.rail__link[aria-current="page"]{
  background:var(--mist);
  color:var(--cinnabar);
  font-weight:700;
}
.rail__link[aria-current="page"]::before{
  content:"";
  position:absolute;
  left:2px;
  top:50%;
  transform:translateY(-50%);
  width:3px;
  height:18px;
  border-radius:2px;
  background:var(--cinnabar);
}

.rail__idx{
  flex:none;
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--amber);
}

.rail__label{min-width:0;}

.rail__foot{
  margin-top:auto;
  padding-top:18px;
  border-top:1px dashed var(--line);
}

.rail__cta{
  display:block;
  text-align:center;
  padding:11px 8px;
  border:1px solid var(--cinnabar);
  border-radius:12px;
  color:var(--cinnabar);
  font-size:13.5px;
  font-weight:700;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.rail__cta:hover{background:var(--cinnabar);color:var(--paper);}

.rail__note{
  margin-top:10px;
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.03em;
  color:var(--ink-soft);
  text-align:center;
}

/* --- 抽屉遮罩 --- */
.nav-scrim{
  position:fixed;
  left:0;
  right:0;
  top:var(--head-h);
  bottom:0;
  z-index:1;
  background:rgba(30,26,24,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity .28s var(--ease),visibility .28s var(--ease);
}
.nav-scrim[data-visible]{opacity:1;visibility:visible;}

body[data-nav-open]{overflow:hidden;}

/* ---------- 6. desktop rail layout ---------- */
@media (min-width:901px){
  .site-head{
    right:auto;
    bottom:0;
    width:var(--rail);
    padding:22px 0 18px;
    border-bottom:0;
    border-right:1px solid var(--line);
  }

  .top-band{
    position:fixed;
    left:var(--rail);
    right:0;
    top:0;
    height:var(--band);
    z-index:79;
  }

  .top-band__link{
    justify-content:center;
    gap:12px;
    padding:0 clamp(16px,3vw,36px);
    font-size:13.5px;
  }

  .site-head__bar{
    flex-direction:column;
    align-items:center;
    justify-content:flex-start;
    gap:14px;
    height:auto;
    padding:0 10px 16px;
    border-bottom:1px dashed var(--line);
  }

  .brand{
    flex-direction:column;
    gap:9px;
    text-align:center;
  }

  .brand__mark{width:38px;height:38px;font-size:20px;border-radius:11px 11px 11px 3px;}
  .brand__name{font-size:14px;white-space:normal;}
  .brand__line{display:none;}

  .nav-toggle{display:none;}

  .rail{
    position:static;
    width:auto;
    flex:1 1 auto;
    min-height:0;
    padding:14px 9px 0;
    border-right:0;
    box-shadow:none;
    transform:none;
    overflow-y:auto;
  }

  .rail__link{
    display:block;
    padding:10px 4px;
    text-align:center;
    font-size:12.5px;
  }
  .rail__link[aria-current="page"]::before{left:0;width:3px;height:16px;}

  .rail__idx{display:none;}

  .rail__foot{padding-top:16px;}
  .rail__cta{font-size:12px;padding:9px 6px;}

  .nav-scrim{display:none;}
}

/* ---------- 7. footer ---------- */
.site-foot{
  position:relative;
  margin-top:clamp(48px,8vw,96px);
  padding:clamp(38px,5vw,68px) 0 26px;
  background:var(--seal);
  color:rgba(251,246,238,.86);
}

.site-foot::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:-1px;
  height:10px;
  background-image:radial-gradient(circle at 5px 5px,var(--paper) 0 4.5px,transparent 5px);
  background-size:20px 10px;
  background-repeat:repeat-x;
  opacity:.85;
}

.site-foot__inner{
  width:100%;
  max-width:1180px;
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,56px);
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(26px,4vw,48px);
}

.site-foot__brand{display:flex;flex-direction:column;gap:10px;}

.site-foot__mark{
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  background:var(--paper);
  color:var(--seal);
  font-family:var(--serif);
  font-weight:900;
  font-size:22px;
  line-height:1;
  border-radius:13px 13px 13px 4px;
  transform:rotate(-3deg);
}

.site-foot__name{
  font-family:var(--serif);
  font-weight:900;
  font-size:20px;
  letter-spacing:.02em;
  color:var(--paper);
}

.site-foot__line{font-size:13.5px;color:rgba(251,246,238,.74);}

.site-foot__meta{
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.04em;
  color:rgba(251,246,238,.58);
}

.site-foot__nav{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(18px,3vw,32px);
}

.foot-col__title{
  font-family:var(--mono);
  font-size:12px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--amber);
  padding-bottom:8px;
  margin-bottom:14px;
  border-bottom:1px solid rgba(251,246,238,.18);
}

.foot-col__list{display:flex;flex-direction:column;gap:9px;}

.foot-col__list a{
  display:inline-block;
  font-size:14px;
  line-height:1.5;
  color:rgba(251,246,238,.86);
  border-bottom:1px solid transparent;
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.foot-col__list a:hover{color:#fff;border-bottom-color:var(--amber);}

.site-foot__base{
  width:100%;
  max-width:1180px;
  margin-inline:auto;
  margin-top:clamp(28px,4vw,48px);
  padding:clamp(22px,3.4vw,36px) clamp(18px,4vw,56px) 0;
  border-top:1px dashed rgba(251,246,238,.22);
  display:flex;
  flex-direction:column;
  gap:9px;
}

.site-foot__record{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--amber);
}

.site-foot__legal{font-size:13px;color:rgba(251,246,238,.76);}

.site-foot__copy{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.04em;
  color:rgba(251,246,238,.55);
}

@media (min-width:641px){
  .site-foot__nav{grid-template-columns:repeat(3,minmax(0,1fr));}
}

@media (min-width:901px){
  .site-foot__inner{grid-template-columns:minmax(200px,1fr) minmax(0,2.2fr);}
}

/* ---------- 8. shared components ---------- */
.wrap{
  width:100%;
  max-width:1180px;
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,56px);
}

.prose{max-width:34em;}
.prose p,
.prose ul,
.prose ol,
.prose blockquote,
.prose h2,
.prose h3{max-width:34em;}
.prose p + p{margin-top:.85em;}
.prose h2{margin-top:1.6em;}
.prose h3{margin-top:1.3em;}
.prose ul,
.prose ol{margin-top:.6em;display:flex;flex-direction:column;gap:.4em;}
.prose ul li{position:relative;padding-left:1.15em;}
.prose ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--amber);
}

.kicker{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--cinnabar);
}
.kicker::before{
  content:"";
  width:22px;
  height:2px;
  border-radius:2px;
  background:var(--amber);
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border:1px solid transparent;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  line-height:1.2;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn--primary{background:var(--cinnabar);color:var(--paper);}
.btn--primary:hover{background:var(--cinnabar-deep);transform:translateY(-1px);}
.btn--amber{background:var(--amber);color:var(--ink);}
.btn--amber:hover{background:var(--orange);color:var(--paper);}
.btn--ghost{background:transparent;border-color:var(--cinnabar);color:var(--cinnabar);}
.btn--ghost:hover{background:var(--cinnabar);color:var(--paper);}
.btn--quiet{background:transparent;border-color:var(--line);color:var(--ink-soft);}
.btn--quiet:hover{background:var(--fold);border-color:var(--amber);color:var(--ink);}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-soft);
  padding-top:18px;
}
.breadcrumb a:hover{color:var(--cinnabar);}
.breadcrumb__sep{color:var(--amber);}

.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:700;}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border:1px solid transparent;
  border-radius:999px;
  font-size:12.5px;
  line-height:1.55;
  background:var(--fold);
  color:var(--ink-soft);
}
.tag--amber{border-color:rgba(217,154,43,.5);background:rgba(217,154,43,.1);color:#8A5F10;}
.tag--celadon{border-color:rgba(78,127,110,.45);background:rgba(78,127,110,.09);color:var(--celadon);}
.tag--cinnabar{border-color:rgba(200,50,43,.4);background:var(--mist);color:var(--cinnabar);}

.grid{display:grid;gap:clamp(16px,2.4vw,26px);}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));}

.card{
  background:var(--fold);
  border-radius:var(--r-lg);
  padding:clamp(18px,2.4vw,26px);
}

.card--paper{background:#fff;border:1px solid var(--line-soft);}
.card--line{background:transparent;border:1px dashed var(--line);}

.frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:4/3;
  border-radius:var(--r-lg);
  background-image:linear-gradient(150deg,var(--fold),rgba(217,154,43,.2));
}
.frame--wide{aspect-ratio:16/9;}
.frame--ticket{aspect-ratio:2/1;border-radius:var(--r-md);}
.frame > img{width:100%;height:100%;object-fit:cover;}

.frame__cap{
  position:absolute;
  left:12px;
  bottom:12px;
  right:12px;
  width:fit-content;
  max-width:calc(100% - 24px);
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.04em;
  line-height:1.6;
  color:var(--ink-soft);
  background:rgba(251,246,238,.9);
  border-radius:999px;
  padding:4px 13px;
}

.rule{height:1px;border:0;background:var(--line);margin-block:clamp(24px,4vw,44px);}
.rule--dashed{height:0;background:none;border-top:1px dashed var(--line);}

.stamp-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding-top:14px;
  border-top:1px dashed var(--line);
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--ink-soft);
}
.stamp-line b{color:var(--cinnabar);font-weight:500;}

/* ---------- 9. motion ---------- */
html.js [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}
html.js [data-reveal].is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  html.js [data-reveal]{opacity:1;transform:none;transition:none;}

  .skip-link,
  .top-band__link,
  .top-band__progress,
  .nav-toggle,
  .rail,
  .rail__link,
  .rail__cta,
  .nav-scrim,
  .btn,
  .foot-col__list a{transition:none;}

  .rail[data-open]{transform:translateX(0);}
  .top-band__progress{transform:none;}
}