/* ============================================================
   四喜娱乐会馆 · 共享站点样式 /assets/site.css
   结构：变量 → 重置 → 中文排版 → 头部 → 页脚 → 通用组件 → 响应式
   ============================================================ */

:root{
  --clay:#E4572E;
  --clay-deep:#A63A1E;
  --terracotta:#F3D9C9;
  --rice:#FBF6EE;
  --jade:#1F7A5C;
  --jade-soft:#D7EDE4;
  --tie:#2F5D8A;
  --ink:#1B2A41;
  --brass:#C9973B;
  --haze:#6F6A63;

  --line:rgba(27,42,65,.12);
  --line-soft:rgba(27,42,65,.08);
  --line-brass:rgba(201,151,59,.42);

  --font-display:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Oswald","DIN Condensed","Arial Narrow",var(--font-body);

  --r-pill:999px;
  --r-lg:30px;
  --r-md:18px;
  --r-sm:12px;

  --shell:1240px;
  --gut:clamp(16px,4vw,40px);
  --sec:clamp(48px,7vw,88px);

  --shadow-float:0 20px 46px -24px rgba(27,42,65,.45);
  --shadow-card:0 22px 46px -38px rgba(27,42,65,.72);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 重置 ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,fieldset{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg,video{display:block;max-width:100%;}
button{font:inherit;color:inherit;}
a{color:var(--tie);}
table{border-collapse:collapse;width:100%;}
hr{border:0;}
#main-content:focus{outline:none;}

:where(a,button,summary,[tabindex]):focus-visible{
  outline:3px solid var(--tie);
  outline-offset:3px;
  border-radius:4px;
}
.hall-footer :where(a,button,[tabindex]):focus-visible{outline-color:var(--brass);}

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

.skip-link{
  position:fixed;top:-120px;left:16px;z-index:200;
  padding:12px 22px;border-radius:var(--r-pill);
  background:var(--ink);color:var(--rice);
  font-size:14px;font-weight:700;letter-spacing:.06em;text-decoration:none;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:14px;}

/* ---------- 中文排版与基底 ---------- */
body{
  min-height:100vh;
  background:var(--rice);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
@media (min-width:1000px){body{font-size:17px;}}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.18;
  letter-spacing:.02em;
  color:var(--ink);
  text-wrap:balance;
}
h1{font-size:clamp(2rem,5.6vw,4.6rem);}
h2{font-size:clamp(1.6rem,3.4vw,2.6rem);}
h3{font-size:clamp(1.2rem,2vw,1.5rem);font-weight:700;}
h4{font-family:var(--font-body);font-size:1.05rem;font-weight:700;letter-spacing:.04em;}

p + p{margin-top:.9em;}
strong,b{font-weight:700;}
small{font-size:.82rem;color:var(--haze);}
.num,.hall-footer__value--num{
  font-family:var(--font-num);
  font-feature-settings:"tnum" 1;
  letter-spacing:.02em;
}

.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gut);
}

/* ---------- 头部 ---------- */
.hall-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(251,246,238,.9);
  -webkit-backdrop-filter:blur(14px) saturate(1.15);
  backdrop-filter:blur(14px) saturate(1.15);
  border-bottom:1px solid var(--line-brass);
  transition:box-shadow .24s var(--ease);
}
.hall-header[data-scrolled="true"]{
  box-shadow:0 14px 34px -30px rgba(27,42,65,.85);
}
.hall-header__inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(10px,2vw,26px);
  padding-block:clamp(10px,1.4vw,16px);
  transition:padding-block .24s var(--ease);
}
.hall-header[data-scrolled="true"] .hall-header__inner{padding-block:8px;}

.ink-progress{
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:3px;
  background:rgba(228,87,46,.14);
  overflow:hidden;
}
.ink-progress__bar{
  display:block;
  height:100%;width:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--clay),var(--brass));
}

/* 品牌 */
.brand{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:var(--ink);
}
.brand__mark{
  width:38px;height:38px;
  border-radius:14px;
  flex:0 0 auto;
  display:grid;
  place-items:center;
  position:relative;
  background:
    radial-gradient(circle at 50% 50%,var(--rice) 0 20%,transparent 21%),
    radial-gradient(circle at 50% 50%,var(--jade) 0 38%,transparent 39%),
    radial-gradient(circle at 50% 50%,var(--clay) 0 60%,transparent 61%),
    radial-gradient(circle at 50% 50%,var(--tie) 0 80%,transparent 81%),
    var(--ink);
  box-shadow:inset 0 0 0 2px rgba(251,246,238,.55);
  transition:transform .32s var(--ease);
}
.brand:hover .brand__mark{transform:rotate(26deg);}
.brand__mark-core{
  width:9px;height:9px;
  border-radius:50%;
  background:var(--clay-deep);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(15px,1.5vw,19px);
  letter-spacing:.04em;
  color:var(--ink);
}
.brand__sub{
  font-size:10.5px;
  letter-spacing:.22em;
  color:var(--haze);
}

/* 移动端栏目按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  margin-inline-start:auto;
  padding:10px 16px;
  border:1px solid var(--line-brass);
  border-radius:var(--r-pill);
  background:var(--rice);
  color:var(--ink);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.1em;
  cursor:pointer;
  transition:background-color .18s var(--ease),border-color .18s var(--ease);
}
.nav-toggle:hover{background:var(--terracotta);border-color:rgba(228,87,46,.5);}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:3px;width:16px;}
.nav-toggle__bars span{
  display:block;height:2px;border-radius:2px;
  background:var(--clay-deep);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

/* 悬浮胶囊导航 */
.capsule-nav{
  margin-inline-start:auto;
  display:flex;
  align-items:center;
  gap:4px;
  padding:6px;
  border-radius:var(--r-pill);
  background:var(--terracotta);
  box-shadow:inset 0 0 0 1px rgba(228,87,46,.2),var(--shadow-float);
}
.capsule-nav__list{
  display:flex;
  align-items:center;
  gap:2px;
}
.capsule-nav__link{
  display:inline-block;
  padding:8px 14px;
  border-radius:var(--r-pill);
  color:var(--ink);
  font-size:14px;
  font-weight:600;
  letter-spacing:.02em;
  text-decoration:none;
  white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.capsule-nav__link:hover{
  background:rgba(251,246,238,.8);
  color:var(--clay-deep);
}
.capsule-nav__link[aria-current="page"]{
  background:var(--clay);
  color:var(--ink);
  box-shadow:inset 0 0 0 1px rgba(166,58,30,.4);
}
.capsule-nav__cta{
  flex:0 0 auto;
  margin-inline-start:4px;
  padding:9px 18px;
  border-radius:var(--r-pill);
  background:var(--clay-deep);
  color:#FFFFFF;
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
  text-decoration:none;
  white-space:nowrap;
  transition:background-color .18s var(--ease),transform .18s var(--ease);
}
.capsule-nav__cta:hover{background:var(--ink);transform:translateY(-1px);}

/* ---------- 页脚 ---------- */
.hall-footer{
  position:relative;
  margin-top:clamp(40px,6vw,80px);
  background:var(--ink);
  color:rgba(251,246,238,.86);
  overflow:hidden;
}
.hall-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:6px;
  background:repeating-linear-gradient(90deg,
    var(--clay) 0 42px,
    var(--brass) 42px 50px,
    var(--jade) 50px 92px,
    var(--brass) 92px 100px);
  opacity:.92;
}
.hall-footer__inner{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:clamp(24px,4vw,56px);
  padding-block:clamp(48px,6vw,82px) clamp(32px,4vw,52px);
}
.hall-footer__brand{min-width:0;}
.brand--footer .brand__name{color:var(--rice);}
.brand--footer .brand__sub{color:rgba(251,246,238,.58);}
.brand--footer .brand__mark{box-shadow:inset 0 0 0 2px rgba(251,246,238,.35);}
.hall-footer__line{
  margin-top:18px;
  max-width:24ch;
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(16px,1.5vw,20px);
  line-height:1.55;
  color:var(--rice);
}
.hall-footer__hours{
  margin-top:10px;
  max-width:30ch;
  font-size:13px;
  line-height:1.7;
  color:rgba(251,246,238,.6);
}
.hall-footer__col{min-width:0;}
.hall-footer__title{
  margin-bottom:16px;
  font-family:var(--font-body);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.22em;
  color:var(--brass);
}
.hall-footer__list{display:flex;flex-direction:column;gap:10px;}
.hall-footer__link{
  display:inline-block;
  color:rgba(251,246,238,.86);
  font-size:14px;
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.hall-footer__link:hover{color:var(--terracotta);border-color:var(--terracotta);}
.hall-footer__value{
  display:inline-block;
  font-size:14px;
  line-height:1.65;
  color:rgba(251,246,238,.9);
  word-break:break-word;
}
.hall-footer__value--num{font-size:16px;font-weight:600;letter-spacing:.06em;}
.hall-footer__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
  padding-block:20px 28px;
  border-top:1px solid rgba(251,246,238,.16);
}
.hall-footer__copy{
  font-size:12.5px;
  letter-spacing:.03em;
  color:rgba(251,246,238,.58);
}
.hall-footer__legal{display:flex;flex-wrap:wrap;gap:8px 20px;}
.hall-footer__legal-link{
  font-size:12.5px;
  color:rgba(251,246,238,.72);
  text-decoration:none;
  transition:color .18s var(--ease);
}
.hall-footer__legal-link:hover{color:var(--brass);}

/* ---------- 通用容器与分区 ---------- */
.section{padding-block:var(--sec);}
.section--tint{
  background:linear-gradient(180deg,rgba(243,217,201,.42),rgba(243,217,201,.88));
}
.section--ink{
  background:var(--ink);
  color:rgba(251,246,238,.88);
}
.section--ink h2,.section--ink h3,.section--ink h4{color:var(--rice);}
.section--ink .lede,.section--ink .note{color:rgba(251,246,238,.7);}

.grid{display:grid;gap:clamp(16px,2.4vw,28px);}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr));}
.grid--12 > *{grid-column:span 12;}
@media (min-width:860px){
  .col-3{grid-column:span 3;}
  .col-4{grid-column:span 4;}
  .col-5{grid-column:span 5;}
  .col-6{grid-column:span 6;}
  .col-7{grid-column:span 7;}
  .col-8{grid-column:span 8;}
  .col-9{grid-column:span 9;}
}

.lede{
  max-width:60ch;
  font-size:clamp(1.02rem,1.5vw,1.22rem);
  line-height:1.8;
  color:var(--haze);
}

.divider{
  height:1px;
  border:0;
  margin-block:clamp(26px,4vw,46px);
  background:linear-gradient(90deg,var(--brass),rgba(201,151,59,0));
}

.tie-band{
  height:10px;
  border-radius:var(--r-pill);
  background:repeating-linear-gradient(90deg,
    var(--clay) 0 30px,
    var(--brass) 30px 36px,
    var(--jade) 36px 66px,
    var(--brass) 66px 72px);
  opacity:.85;
}

.grain{position:relative;}
.grain::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  border-radius:inherit;
  background-image:radial-gradient(rgba(27,42,65,.5) .5px,transparent .6px);
  background-size:3px 3px;
  opacity:.14;
  mix-blend-mode:multiply;
}

/* ---------- 页面开场 ---------- */
.page-head{
  position:relative;
  padding-block:clamp(28px,4.5vw,58px) clamp(22px,3vw,38px);
}
.page-head__kicker{
  display:inline-block;
  margin-bottom:14px;
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.22em;
  color:var(--jade);
}
.page-head__title{
  font-size:clamp(2rem,6vw,4.4rem);
  letter-spacing:.015em;
}
.page-head__note{
  margin-top:16px;
  max-width:56ch;
  font-size:1rem;
  color:var(--haze);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding-top:clamp(14px,2vw,22px);font-size:13px;}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb__link{
  color:var(--haze);
  text-decoration:none;
  border-bottom:1px solid rgba(111,106,99,.38);
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.breadcrumb__link:hover{color:var(--clay-deep);border-color:var(--clay-deep);}
.breadcrumb__sep{color:var(--brass);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 26px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-family:var(--font-body);
  font-size:15px;
  font-weight:700;
  letter-spacing:.06em;
  line-height:1.4;
  text-decoration:none;
  cursor:pointer;
  transition:transform .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn:hover{transform:translateY(-2px);}
.btn--primary{
  background:var(--clay-deep);
  color:#FFFFFF;
  box-shadow:0 16px 30px -22px rgba(166,58,30,.95);
}
.btn--primary:hover{background:var(--ink);}
.btn--ghost{
  background:transparent;
  color:var(--ink);
  border-color:rgba(27,42,65,.28);
}
.btn--ghost:hover{border-color:var(--clay);color:var(--clay-deep);background:rgba(243,217,201,.5);}
.btn--quiet{background:var(--jade-soft);color:var(--jade);}
.btn--quiet:hover{background:var(--jade);color:var(--rice);}

/* ---------- 标签与筛选胶囊 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  background:var(--terracotta);
  color:var(--clay-deep);
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
  line-height:1.6;
  text-decoration:none;
}
.tag--jade{background:var(--jade-soft);color:var(--jade);}
.tag--tie{background:rgba(47,93,138,.14);color:var(--tie);}
.tag--brass{background:rgba(201,151,59,.2);color:#785611;}

.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  border-radius:var(--r-pill);
  border:1px solid rgba(27,42,65,.18);
  background:var(--rice);
  color:var(--ink);
  font-size:13.5px;
  font-weight:600;
  letter-spacing:.02em;
  cursor:pointer;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.pill:hover{background:var(--terracotta);border-color:rgba(228,87,46,.45);}
.pill[aria-pressed="true"],.pill.is-active{
  background:var(--clay);
  border-color:var(--clay-deep);
  color:var(--ink);
}

/* ---------- 专题研究板组件 ---------- */
.index-card{
  display:block;
  position:relative;
  padding:clamp(16px,2vw,22px);
  border-radius:var(--r-lg);
  background:var(--terracotta);
  border:1px solid rgba(228,87,46,.26);
  color:var(--ink);
  text-decoration:none;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.index-card:hover{transform:translateY(-4px);box-shadow:0 26px 44px -32px rgba(166,58,30,.9);}
.index-card__num{
  display:block;
  font-family:var(--font-num);
  font-size:clamp(2rem,5vw,3.4rem);
  font-weight:700;
  line-height:.95;
  letter-spacing:.01em;
  color:var(--clay-deep);
}
.index-card__label{
  display:block;
  margin-top:10px;
  font-family:var(--font-display);
  font-weight:900;
  font-size:1.05rem;
  letter-spacing:.02em;
}
.index-card__meta{
  display:block;
  margin-top:4px;
  font-size:12.5px;
  color:var(--haze);
}
.index-card--jade{background:var(--jade-soft);border-color:rgba(31,122,92,.24);}
.index-card--jade .index-card__num{color:var(--jade);}
.index-card--tie{background:rgba(47,93,138,.12);border-color:rgba(47,93,138,.26);}
.index-card--tie .index-card__num{color:var(--tie);}

.card{
  position:relative;
  padding:clamp(20px,2.4vw,30px);
  border-radius:var(--r-lg);
  background:var(--rice);
  border:1px solid var(--line-soft);
  box-shadow:var(--shadow-card);
}
.card--clay{background:var(--terracotta);border-color:rgba(228,87,46,.28);}
.card--jade{background:var(--jade-soft);border-color:rgba(31,122,92,.2);}
.card__title{
  margin-bottom:8px;
  font-family:var(--font-display);
  font-weight:900;
  font-size:1.12rem;
  letter-spacing:.02em;
}
.card__text{font-size:.95rem;color:var(--haze);}

.note{
  padding:12px 16px;
  border-left:3px solid var(--brass);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  background:linear-gradient(90deg,rgba(201,151,59,.12),rgba(201,151,59,0) 82%);
  font-size:.92rem;
  line-height:1.75;
  color:var(--haze);
}

.prose{max-width:68ch;}
.prose p{margin-bottom:1em;}
.prose h2,.prose h3{margin:1.6em 0 .6em;}
.prose ul,.prose ol{list-style:revert;padding-left:1.35em;margin:0 0 1em;}
.prose li{margin-bottom:.4em;}
.prose a{
  color:var(--tie);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:3px;
}
.prose a:hover{color:var(--clay-deep);}

/* ---------- 图片容器（页面阶段放置真实图片使用） ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  aspect-ratio:4 / 3;
  background:
    radial-gradient(circle at 22% 24%,rgba(47,93,138,.28),transparent 58%),
    linear-gradient(135deg,var(--terracotta),var(--jade-soft) 58%,rgba(201,151,59,.35));
  box-shadow:var(--shadow-card);
}
.media-frame__img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.media-frame__caption{
  margin-top:8px;
  font-size:12.5px;
  line-height:1.6;
  color:var(--haze);
}
.media-frame--wide{aspect-ratio:16 / 9;}
.media-frame--tall{aspect-ratio:3 / 4;}
.media-frame--bleed{
  margin-inline:calc(var(--gut) * -1);
  border-radius:0;
}
@media (min-width:860px){
  .media-frame--bleed{
    margin-inline:calc(var(--gut) * -.5);
    border-radius:var(--r-lg);
  }
}

/* ---------- 进场（页面阶段给元素加 data-reveal） ---------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .26s var(--ease),transform .26s var(--ease);
}
.js [data-reveal].is-revealed{opacity:1;transform:none;}

/* ---------- 响应式：头部与页脚 ---------- */
@media (max-width:1099px){
  .capsule-nav__link{padding:8px 11px;font-size:13.5px;}
  .capsule-nav{gap:2px;padding:5px;}
}

@media (max-width:979px){
  .nav-toggle{display:inline-flex;}
  .capsule-nav{
    position:absolute;
    left:var(--gut);
    right:var(--gut);
    top:calc(100% - 2px);
    margin-inline-start:0;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    padding:14px;
    border-radius:var(--r-lg);
    background:var(--rice);
    border:1px solid rgba(228,87,46,.32);
    box-shadow:var(--shadow-float);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    pointer-events:none;
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);
  }
  .capsule-nav[data-open="true"]{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
    pointer-events:auto;
  }
  .capsule-nav__list{flex-direction:column;align-items:stretch;gap:2px;}
  .capsule-nav__link{
    display:block;
    padding:12px 14px;
    border-radius:var(--r-md);
    font-size:15px;
  }
  .capsule-nav__cta{
    margin:6px 0 0;
    padding:13px 18px;
    text-align:center;
    font-size:15px;
  }
  .hall-footer__inner{grid-template-columns:repeat(2,minmax(0,1fr));}
  .hall-footer__brand{grid-column:1 / -1;}
}

@media (max-width:760px){
  .hall-footer__inner{
    grid-template-columns:1fr;
    gap:28px;
  }
  .hall-footer__bottom{flex-direction:column;align-items:flex-start;}
}

@media (max-width:420px){
  .brand__sub{display:none;}
  .nav-toggle__label{display:none;}
  .nav-toggle{padding:10px 12px;}
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .js [data-reveal]{opacity:1;transform:none;}
  .brand:hover .brand__mark{transform:none;}
  .index-card:hover,.btn:hover{transform:none;}
}