/* ============================================================
   易丰娱乐会馆 · 共享站点样式 /assets/site.css
   墨绿轨道 + 纸白册页 + 铜金索引
   ============================================================ */

:root{
  --ink:#123B32;
  --ink-deep:#0B241F;
  --copper:#B7793C;
  --copper-light:#D8A76A;
  --cinnabar:#A83A2A;
  --paper:#F6F1E7;
  --paper-grey:#E8E1D4;
  --mist:#7F9A8E;
  --black:#1A1A16;

  --rail-w:18.5rem;
  --r-lg:26px;
  --r-md:16px;
  --r-pill:999px;

  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --mono:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --hairline:1px solid rgba(183,121,60,.28);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-left:var(--rail-w);
  background:var(--paper);
  color:var(--black);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  margin:0;
  font-family:var(--serif);
  font-weight:700;
  line-height:1.22;
  letter-spacing:-.01em;
  color:var(--ink-deep);
}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
img,svg{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;}
li{list-style:none;}
a{color:inherit;}
button{font:inherit;color:inherit;}
address{font-style:normal;}

/* ---------- 焦点 ---------- */
:focus-visible{
  outline:2px solid var(--copper);
  outline-offset:3px;
  border-radius:4px;
}
.site-rail :focus-visible,
.site-foot :focus-visible{outline-color:var(--copper-light);}

#main-content{scroll-margin-top:1rem;}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;
  top:.75rem;left:.75rem;
  z-index:200;
  transform:translateY(-220%);
  padding:.6rem 1.15rem;
  border-radius:var(--r-pill);
  background:var(--copper-light);
  color:var(--ink-deep);
  font-size:.84rem;
  font-weight:600;
  letter-spacing:.06em;
  text-decoration:none;
  transition:transform .18s ease;
}
.skip-link:focus,
.skip-link:focus-visible{transform:translateY(0);}

/* ============================================================
   头部：左侧会馆轨道
   ============================================================ */
.site-rail{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--rail-w);
  display:flex;
  flex-direction:column;
  gap:1.4rem;
  padding:1.9rem 1.35rem 1.5rem;
  background:
    radial-gradient(130% 55% at 0% 0%, rgba(183,121,60,.20) 0%, rgba(183,121,60,0) 62%),
    linear-gradient(180deg,var(--ink) 0%,var(--ink-deep) 100%);
  color:var(--paper);
  border-right:1px solid rgba(216,167,106,.22);
  z-index:60;
}

.rail-top{
  display:flex;
  flex-direction:column;
  gap:.9rem;
  flex:0 0 auto;
}

/* 品牌 */
.brand{
  display:flex;
  align-items:center;
  gap:.7rem;
  text-decoration:none;
  color:var(--paper);
}
.brand-seal{
  flex:none;
  display:grid;
  place-items:center;
  width:2.5rem;height:2.5rem;
  border:1px solid var(--copper-light);
  border-radius:9px;
  background:rgba(216,167,106,.08);
  color:var(--copper-light);
  font-family:var(--serif);
  font-weight:800;
  font-size:1.12rem;
  letter-spacing:-.04em;
  transition:background .2s ease,color .2s ease;
}
.brand:hover .brand-seal{
  background:var(--copper-light);
  color:var(--ink-deep);
}
.brand-text{display:flex;flex-direction:column;gap:.18rem;}
.brand-mark{
  font-family:var(--serif);
  font-weight:800;
  font-size:1.06rem;
  line-height:1.2;
  letter-spacing:.04em;
}
.brand-line{
  font-family:var(--mono);
  font-size:.58rem;
  letter-spacing:.2em;
  color:rgba(216,167,106,.85);
  text-transform:uppercase;
}

/* 移动端按钮 */
.rail-toggle{
  display:none;
  align-items:center;
  gap:.5rem;
  padding:.42rem .82rem;
  border:1px solid rgba(216,167,106,.5);
  border-radius:var(--r-pill);
  background:transparent;
  color:var(--paper);
  font-size:.74rem;
  letter-spacing:.16em;
  cursor:pointer;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.rail-toggle:hover{background:rgba(216,167,106,.14);border-color:var(--copper-light);}
.rail-toggle[aria-expanded="true"]{
  background:var(--copper-light);
  border-color:var(--copper-light);
  color:var(--ink-deep);
}
.rail-toggle-text{letter-spacing:inherit;}
.rail-toggle-bar{
  position:relative;
  width:14px;height:1px;
  background:currentColor;
  transition:background .2s ease;
}
.rail-toggle-bar::before,
.rail-toggle-bar::after{
  content:"";
  position:absolute;left:0;
  width:14px;height:1px;
  background:currentColor;
  transition:transform .22s ease;
}
.rail-toggle-bar::before{top:-4px;}
.rail-toggle-bar::after{top:4px;}
.rail-toggle[aria-expanded="true"] .rail-toggle-bar{background:transparent;}
.rail-toggle[aria-expanded="true"] .rail-toggle-bar::before{transform:translateY(4px) rotate(45deg);}
.rail-toggle[aria-expanded="true"] .rail-toggle-bar::after{transform:translateY(-4px) rotate(-45deg);}

/* 索引导航 */
.rail-nav{
  display:flex;
  flex-direction:column;
  gap:.85rem;
  flex:1 1 auto;
  min-height:0;
  overflow-y:auto;
}
.rail-nav-label{
  margin:0;
  padding-bottom:.55rem;
  border-bottom:1px solid rgba(216,167,106,.25);
  font-family:var(--mono);
  font-size:.6rem;
  letter-spacing:.22em;
  color:rgba(216,167,106,.82);
}
.rail-index{
  display:flex;
  flex-direction:column;
  gap:.12rem;
}
.rail-link{
  display:flex;
  align-items:center;
  gap:.65rem;
  padding:.5rem .6rem;
  border:1px solid transparent;
  border-radius:10px;
  color:rgba(246,241,231,.8);
  font-size:.92rem;
  line-height:1.5;
  text-decoration:none;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.rail-num{
  min-width:1.5em;
  font-family:var(--mono);
  font-size:.66rem;
  letter-spacing:.06em;
  color:rgba(216,167,106,.85);
  transition:color .18s ease;
}
.rail-label{letter-spacing:.03em;}
.rail-link:hover{
  background:rgba(216,167,106,.12);
  border-color:rgba(216,167,106,.4);
  color:var(--paper);
}
.rail-link[aria-current="page"]{
  background:var(--copper-light);
  border-color:var(--copper-light);
  color:var(--ink-deep);
  font-weight:500;
}
.rail-link[aria-current="page"] .rail-num{color:var(--ink-deep);}
.rail-link[aria-current="page"]::after{
  content:"●";
  margin-left:auto;
  font-size:.5rem;
  line-height:1;
  color:var(--cinnabar);
}

/* 辅助入口 */
.rail-utility{
  display:flex;
  flex-direction:column;
  gap:.35rem;
  padding-top:.95rem;
  border-top:1px solid rgba(216,167,106,.25);
}
.rail-util-link{
  align-self:flex-start;
  padding-bottom:1px;
  font-size:.78rem;
  letter-spacing:.05em;
  color:rgba(246,241,231,.62);
  text-decoration:none;
  background-image:linear-gradient(var(--copper-light),var(--copper-light));
  background-repeat:no-repeat;
  background-size:0% 1px;
  background-position:0 100%;
  transition:color .2s ease,background-size .24s ease;
}
.rail-util-link:hover{
  color:var(--copper-light);
  background-size:100% 1px;
}
.rail-cta{
  margin-top:.75rem;
  align-self:stretch;
  padding:.72rem 1rem;
  font-size:.85rem;
}

/* 阅读刻度 */
.rail-progress{
  position:absolute;
  top:0;right:0;
  width:4px;height:100%;
  border-radius:0 0 0 4px;
  background:linear-gradient(180deg,var(--copper-light) 0%,var(--cinnabar) 100%);
  transform:scaleY(0);
  transform-origin:top center;
  transition:transform .1s linear;
  pointer-events:none;
}

/* ============================================================
   页脚：票根区
   ============================================================ */
.site-foot{
  position:relative;
  margin-top:clamp(3rem,8vw,6rem);
  background:var(--ink-deep);
  color:rgba(246,241,231,.78);
  border-top:3px solid var(--copper);
}
.foot-inner{
  max-width:1180px;
  margin:0 auto;
  padding:clamp(2.4rem,5vw,3.6rem) clamp(1.15rem,4vw,2.75rem) clamp(1.4rem,3vw,1.9rem);
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(0,2.15fr);
  gap:clamp(1.75rem,4vw,3rem);
}
.foot-mark{
  margin:0 0 .45rem;
  font-family:var(--serif);
  font-size:1.45rem;
  font-weight:800;
  letter-spacing:.04em;
  color:var(--paper);
}
.foot-sub{
  margin:0 0 1.1rem;
  font-size:.76rem;
  letter-spacing:.14em;
  color:rgba(216,167,106,.85);
}
.foot-stamp{
  margin:0;
  font-size:.7rem;
  letter-spacing:.12em;
  color:rgba(246,241,231,.48);
}
.foot-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1.5rem 1.25rem;
}
.foot-col-title{
  margin:0 0 .75rem;
  padding-bottom:.5rem;
  border-bottom:1px solid rgba(216,167,106,.22);
  font-family:var(--sans);
  font-size:.72rem;
  font-weight:500;
  letter-spacing:.2em;
  color:var(--copper-light);
}
.foot-list{
  display:flex;
  flex-direction:column;
  gap:.45rem;
}
.foot-link{
  display:inline-block;
  padding-bottom:1px;
  font-size:.86rem;
  color:rgba(246,241,231,.74);
  text-decoration:none;
  background-image:linear-gradient(var(--copper-light),var(--copper-light));
  background-repeat:no-repeat;
  background-size:0% 1px;
  background-position:0 100%;
  transition:color .2s ease,background-size .24s ease;
}
.foot-link:hover{
  color:var(--copper-light);
  background-size:100% 1px;
}
.foot-contact{
  max-width:1180px;
  margin:0 auto;
  padding:1.15rem clamp(1.15rem,4vw,2.75rem) 0;
  display:flex;
  flex-wrap:wrap;
  gap:.5rem 2rem;
  border-top:1px solid rgba(216,167,106,.2);
}
.foot-contact-line{
  margin:0;
  display:inline-flex;
  align-items:baseline;
  gap:.55rem;
  font-size:.78rem;
  letter-spacing:.05em;
  color:rgba(246,241,231,.68);
}
.foot-contact-line .mono{
  font-size:.64rem;
  letter-spacing:.18em;
  color:var(--copper-light);
}
.foot-base{
  max-width:1180px;
  margin:1.1rem auto 0;
  padding:1rem clamp(1.15rem,4vw,2.75rem) 2rem;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.45rem 1.5rem;
  border-top:1px solid rgba(216,167,106,.14);
  font-size:.72rem;
  letter-spacing:.07em;
  color:rgba(246,241,231,.48);
}
.foot-copy{margin:0;}
.foot-icp{margin:0;font-family:var(--mono);letter-spacing:.04em;}
.foot-note{
  margin:0 0 0 auto;
  max-width:34rem;
  color:rgba(246,241,231,.42);
}

/* ============================================================
   通用版式与组件
   ============================================================ */
.container{
  width:100%;
  max-width:1180px;
  margin-inline:auto;
  padding-inline:clamp(1.15rem,4vw,2.75rem);
}
.section{padding-block:clamp(2.4rem,6vw,5rem);}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.55rem;
  margin:0 0 .9rem;
  font-family:var(--mono);
  font-size:.66rem;
  letter-spacing:.24em;
  color:var(--copper);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:1.6rem;height:1px;
  background:var(--copper);
}
.mono{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
}
.prose{max-width:68ch;}
.prose p{max-width:62ch;}
.prose strong{color:var(--ink);}
.rule{
  border:0;
  height:1px;
  margin:clamp(1.5rem,3vw,2.5rem) 0;
  background:linear-gradient(90deg,var(--copper) 0%,rgba(183,121,60,0) 100%);
}

/* 面包屑 */
.crumbs{padding-block:1.15rem;}
.crumbs ol{
  display:flex;
  flex-wrap:wrap;
  gap:.45rem;
  font-size:.74rem;
  letter-spacing:.08em;
  color:var(--mist);
}
.crumbs li{display:flex;align-items:center;gap:.45rem;}
.crumbs li + li::before{content:"／";color:var(--copper);}
.crumbs a{color:var(--mist);text-decoration:none;}
.crumbs a:hover{color:var(--copper);}
.crumbs [aria-current="page"]{color:var(--ink);}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  padding:.78rem 1.4rem;
  border:1px solid transparent;
  border-radius:var(--r-pill);
  font-family:var(--sans);
  font-size:.9rem;
  font-weight:500;
  letter-spacing:.08em;
  text-align:center;
  text-decoration:none;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-gold{
  background:linear-gradient(135deg,var(--copper-light) 0%,var(--copper) 100%);
  border-color:rgba(11,36,31,.12);
  color:var(--ink-deep);
  box-shadow:0 8px 20px rgba(11,36,31,.22);
}
.btn-gold:hover{
  background:linear-gradient(135deg,#e9bd84 0%,var(--copper) 100%);
  color:var(--ink-deep);
}
.btn-ghost{
  background:transparent;
  border-color:rgba(18,59,50,.35);
  color:var(--ink);
}
.btn-ghost:hover{
  border-color:var(--copper);
  background:var(--paper-grey);
  color:var(--cinnabar);
}
.btn-dark{
  background:var(--ink);
  color:var(--paper);
}
.btn-dark:hover{background:var(--ink-deep);}

/* 标签胶囊 */
.tag{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.2rem .7rem;
  border:1px solid currentColor;
  border-radius:var(--r-pill);
  font-size:.7rem;
  letter-spacing:.14em;
  color:var(--ink);
  white-space:nowrap;
}
.tag-gold{color:var(--copper);background:rgba(183,121,60,.08);}
.tag-red{color:var(--cinnabar);background:rgba(168,58,42,.07);}

/* 卡片 */
.card{
  background:var(--paper);
  border:1px solid rgba(183,121,60,.28);
  border-radius:var(--r-lg);
  padding:clamp(1.15rem,3vw,1.75rem);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.card:hover{
  transform:translateY(-2px);
  border-color:var(--copper);
  box-shadow:0 14px 30px rgba(11,36,31,.08);
}

/* 栅格 */
.grid-auto{
  display:grid;
  gap:clamp(1rem,2.5vw,1.5rem);
  grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));
}

/* 图片容器基础 */
.media-frame{
  position:relative;
  overflow:hidden;
  margin:0;
  aspect-ratio:4 / 3;
  border:1px solid rgba(183,121,60,.35);
  border-radius:var(--r-lg);
  background:linear-gradient(150deg,var(--ink) 0%,var(--ink-deep) 100%);
}
.media-frame img,
.media-frame picture,
.media-frame picture img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  filter:saturate(.82) contrast(1.02);
}
.media-frame figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:2.2rem 1.15rem .9rem;
  font-size:.72rem;
  letter-spacing:.1em;
  color:var(--paper);
  background:linear-gradient(180deg,rgba(11,36,31,0) 0%,rgba(11,36,31,.86) 100%);
}
.media-frame--wide{aspect-ratio:16 / 10;}
.media-frame--tall{aspect-ratio:3 / 4;}
.media-frame--square{aspect-ratio:1 / 1;}

/* ============================================================
   响应式
   ============================================================ */
@media (min-width:901px) and (max-width:1120px){
  :root{--rail-w:15.5rem;}
  .site-rail{padding:1.5rem 1rem 1.2rem;gap:1.1rem;}
  .rail-link{font-size:.88rem;}
}

@media (max-width:900px){
  body{padding-left:0;}

  .site-rail{
    position:sticky;
    top:0;left:auto;bottom:auto;
    width:100%;
    flex-direction:row;
    align-items:center;
    gap:0;
    padding:.7rem 1rem;
    border-right:0;
    border-bottom:1px solid rgba(216,167,106,.3);
  }
  .rail-top{
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    width:100%;
    gap:1rem;
  }
  .rail-toggle{display:inline-flex;}
  .brand-seal{width:2.1rem;height:2.1rem;font-size:.95rem;border-radius:8px;}
  .brand-mark{font-size:.98rem;}
  .brand-line{font-size:.54rem;letter-spacing:.16em;}

  .rail-nav{
    position:fixed;
    left:0;right:0;bottom:0;
    max-height:78vh;
    overflow-y:auto;
    padding:1.1rem 1.1rem calc(1.35rem + env(safe-area-inset-bottom));
    background:linear-gradient(180deg,var(--ink) 0%,var(--ink-deep) 100%);
    border-top:1px solid rgba(216,167,106,.45);
    border-radius:22px 22px 0 0;
    box-shadow:0 -24px 50px rgba(11,36,31,.45);
    transform:translateY(105%);
    visibility:hidden;
    opacity:1;
    transition:transform .3s cubic-bezier(.22,.8,.3,1),visibility .3s ease;
    z-index:70;
  }
  .site-rail[data-open] .rail-nav{
    transform:translateY(0);
    visibility:visible;
  }
  .rail-index{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:.25rem;
  }
  .rail-link{padding:.6rem .5rem;font-size:.9rem;}
  .rail-utility{margin-top:.9rem;}
  .rail-cta{align-self:flex-start;padding:.7rem 1.4rem;}

  .rail-progress{
    position:fixed;
    top:auto;bottom:0;left:0;right:0;
    width:100%;height:3px;
    border-radius:0;
    transform:scaleX(0);
    transform-origin:left center;
    z-index:55;
  }

  #main-content{scroll-margin-top:4.5rem;}

  .foot-inner{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .foot-note{margin-left:0;max-width:none;}
}

@media (max-width:520px){
  .foot-grid{grid-template-columns:1fr;}
  .foot-contact{flex-direction:column;gap:.45rem;}
  .rail-index{grid-template-columns:1fr;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transition-delay:0ms !important;
  }
}