/* ===========================================================
   顺发娱乐会馆 · 全站共享样式 / assets/site.css
   冰面刻度 · 切角面板 · 批次留痕
   =========================================================== */

:root{
  --ink-900:#061019;
  --ink-800:#0B1A2B;
  --ice-700:#122A44;
  --ice-600:#1E4A6E;
  --snow:#E8F1F8;
  --frost:#9FB8CC;
  --cyan:#38E0D0;
  --gold:#F2B33D;
  --vermilion:#D94F3D;
  --indigo:#5B4BE0;

  --line:rgba(30,74,110,.85);
  --line-soft:rgba(30,74,110,.45);

  --cut:polygon(16px 0,100% 0,100% calc(100% - 16px),calc(100% - 16px) 100%,0 100%,0 16px);
  --cut-sm:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);

  --container:1360px;
  --gutter:24px;

  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","Roboto Mono",Menlo,Consolas,"Courier New",monospace;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-padding-top:150px;
}
@media (prefers-reduced-motion:no-preference){
  html{scroll-behavior:smooth}
}
body{
  margin:0;
  min-height:100%;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  color:var(--snow);
  background-color:var(--ink-800);
  background-image:
    radial-gradient(120% 80% at 50% -12%,rgba(30,74,110,.62),transparent 62%),
    linear-gradient(to right,rgba(56,224,208,.05) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(56,224,208,.05) 1px,transparent 1px);
  background-size:100% 100%,96px 96px,96px 96px;
  background-repeat:no-repeat,repeat,repeat;
  background-attachment:fixed,fixed,fixed;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,picture,video,canvas{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dt,dd{margin:0}
table{border-collapse:collapse;width:100%}
a{color:var(--cyan);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--snow)}
::selection{background:var(--cyan);color:var(--ink-900)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
main{display:block;min-height:60vh}
#main-content{display:block;scroll-margin-top:150px}

/* ---------- 中文排版 ---------- */
h1,h2,h3,h4{font-weight:800;line-height:1.26;letter-spacing:.08em;color:var(--snow)}
h1{
  font-size:clamp(2.4rem,5.5vw,4.6rem);
  letter-spacing:.1em;
  font-stretch:88%;
  line-height:1.12;
}
h2{font-size:clamp(1.5rem,2.6vw,2.2rem);letter-spacing:.08em}
h3{font-size:1.14rem;letter-spacing:.06em;font-weight:700}
h4{font-size:1rem;letter-spacing:.1em;font-weight:600;color:var(--frost)}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
strong,b{color:var(--snow);font-weight:700}
.lede{font-size:clamp(1.02rem,1.4vw,1.22rem);line-height:1.85;color:var(--snow);max-width:62ch}
.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
  color:var(--gold);
}
.index-label{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--frost);
  line-height:1.4;
}
.index-label::before{
  content:"";
  flex:0 0 auto;
  width:9px;height:9px;
  border:1px solid var(--cyan);
  transform:rotate(45deg);
}

/* ---------- 布局 ---------- */
.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-6{grid-column:span 6}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-12{grid-column:span 12}
.section{padding:56px 0}
.section--wide{padding:76px 0}
.section--narrow{max-width:760px;margin-inline:auto}

/* ---------- 面板与分隔 ---------- */
.panel{
  position:relative;
  background:var(--ice-700);
  border:1px solid var(--ice-600);
  padding:24px;
  clip-path:var(--cut);
  transition:border-color .22s ease,background-color .22s ease;
}
.panel:hover{border-color:var(--cyan)}
.panel--gold{border-color:rgba(242,179,61,.55);background:linear-gradient(150deg,rgba(242,179,61,.09),rgba(18,42,68,1) 55%)}
.panel--gold:hover{border-color:var(--gold)}
.panel--tight{padding:16px}
.slash-divider{
  height:2px;
  border:0;
  margin:44px 0;
  background-image:repeating-linear-gradient(90deg,var(--line) 0 14px,transparent 14px 24px);
  transform:skewY(-0.6deg);
  transform-origin:left center;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:40px;
  padding:0 18px;
  font-size:14px;
  font-weight:600;
  letter-spacing:.1em;
  white-space:nowrap;
  cursor:pointer;
  border:1px solid var(--ice-600);
  background:transparent;
  color:var(--snow);
  clip-path:var(--cut-sm);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn:hover{color:var(--snow);border-color:var(--cyan);transform:translateY(-1px)}
.btn:focus-visible{outline:none;box-shadow:inset 0 0 0 2px var(--cyan)}
.btn--gold{background-color:var(--gold);border-color:var(--gold);color:#1A1206}
.btn--gold:hover{background-color:#FFC košile}
.btn--gold:hover{background-color:#FFCB63;border-color:#FFCB63;color:#1A1206}
.btn--ghost{color:var(--snow);border-color:var(--ice-600)}
.btn--ghost:hover{color:var(--cyan)}
.btn--sm{min-height:34px;padding:0 14px;font-size:13px;letter-spacing:.08em}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:absolute;
  top:-72px;
  left:16px;
  z-index:200;
  padding:12px 20px;
  background:var(--cyan);
  color:var(--ink-900);
  font-size:14px;
  font-weight:700;
  letter-spacing:.12em;
  clip-path:var(--cut-sm);
  transition:top .18s ease;
}
.skip-link:focus{top:12px;color:var(--ink-900)}

/* ---------- 刊头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,16,25,.94);
  border-bottom:1px solid var(--ice-600);
  color:var(--snow);
  backdrop-filter:blur(10px);
}
.header-progress{
  position:absolute;
  left:0;bottom:-1px;
  width:100%;height:2px;
  transform:scaleX(0);
  transform-origin:left center;
  background:linear-gradient(90deg,var(--cyan),var(--gold));
}
.masthead{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  padding-block:18px 14px;
  transition:padding .25s ease;
}
.site-header[data-scrolled="true"] .masthead{padding-block:9px 7px}
.masthead__coord{justify-self:start;color:var(--frost);letter-spacing:.18em}
.masthead__coord .mono{color:var(--cyan)}
.brand{text-align:center;min-width:0}
.brand__link{
  display:inline-block;
  font-size:clamp(1.1rem,2.4vw,1.58rem);
  font-weight:800;
  letter-spacing:.24em;
  text-indent:.24em;
  color:var(--snow);
  line-height:1.2;
}
.brand__link:hover{color:var(--snow)}
.brand__coord{
  margin:6px 0 0;
  font-size:12px;
  letter-spacing:.18em;
  color:var(--frost);
  white-space:nowrap;
}
.masthead__actions{justify-self:end;display:flex;align-items:center;gap:10px}

/* ---------- 栏目带 ---------- */
.nav-bar{position:relative;border-top:1px solid var(--line-soft)}
.nav-bar__inner{
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
}
.site-nav{display:block;width:100%}
.site-nav__list{
  display:flex;
  justify-content:center;
  align-items:center;
  gap:clamp(12px,3vw,40px);
  flex-wrap:wrap;
}
.site-nav__item{position:relative}
.site-nav__link{
  position:relative;
  display:block;
  padding:14px 2px;
  color:var(--frost);
  font-size:14px;
  letter-spacing:.16em;
  white-space:nowrap;
  transition:color .2s ease;
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:9px;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease,background-color .22s ease;
}
.site-nav__link:hover{color:var(--snow)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--snow)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--gold)}
.site-nav__item--scale .site-nav__link::before{
  content:"";
  position:absolute;
  left:50%;bottom:3px;
  width:58px;height:4px;
  transform:translateX(-50%);
  background-image:repeating-linear-gradient(90deg,var(--cyan) 0 1px,transparent 1px 7px);
  opacity:.75;
}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  gap:12px;
  width:100%;
  min-height:46px;
  padding:0 16px;
  background:transparent;
  border:1px solid var(--ice-600);
  color:var(--snow);
  font-size:13px;
  letter-spacing:.18em;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{
  width:18px;height:2px;
  background:var(--cyan);
  box-shadow:0 -6px 0 var(--cyan),0 6px 0 var(--cyan);
}
.nav-toggle__text{line-height:1}

/* ---------- 图片容器 ---------- */
.img-frame{
  position:relative;
  overflow:hidden;
  border:1px solid var(--ice-600);
  clip-path:var(--cut);
  background-color:var(--ice-700);
  background-image:
    linear-gradient(150deg,rgba(30,74,110,.55),rgba(11,26,43,.92)),
    repeating-linear-gradient(90deg,rgba(56,224,208,.12) 0 1px,transparent 1px 34px),
    repeating-linear-gradient(0deg,rgba(56,224,208,.12) 0 1px,transparent 1px 34px);
}
.img-frame img{width:100%;height:100%;object-fit:cover}
.img-frame--wide{aspect-ratio:16/9}
.img-frame--square{aspect-ratio:1/1}
.img-frame--tall{aspect-ratio:3/4}
.img-frame__cap{
  position:absolute;
  left:14px;bottom:12px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--frost);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  padding-top:26px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--frost);
}
.breadcrumb a{color:var(--frost)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb__sep{color:var(--ice-600)}

/* ---------- 分段标签 ---------- */
.tabs{
  display:flex;
  align-items:stretch;
  gap:4px;
  border-bottom:1px solid var(--ice-600);
  overflow-x:auto;
  scrollbar-width:thin;
}
.tab{
  flex:0 0 auto;
  padding:11px 18px;
  background:transparent;
  border:1px solid transparent;
  border-bottom:none;
  color:var(--frost);
  font-size:14px;
  letter-spacing:.12em;
  cursor:pointer;
  clip-path:polygon(9px 0,100% 0,100% 100%,0 100%,0 9px);
  transition:color .2s ease,background-color .2s ease,border-color .2s ease;
}
.tab:hover{color:var(--snow)}
.tab[aria-selected="true"]{
  color:var(--snow);
  background:var(--ice-700);
  border-color:var(--ice-600);
  box-shadow:inset 0 -2px 0 var(--cyan);
}
.tabpanel{padding-top:24px}
.tabpanel[hidden]{display:none}

/* ---------- 芯片 ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;
  align-items:center;
  padding:7px 14px;
  border:1px solid var(--ice-600);
  background:transparent;
  color:var(--frost);
  font-size:13px;
  letter-spacing:.1em;
  cursor:pointer;
  clip-path:var(--cut-sm);
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.chip:hover{color:var(--snow);border-color:var(--cyan)}
.chip[aria-pressed="true"]{background:var(--cyan);border-color:var(--cyan);color:var(--ink-900)}

/* ---------- 显现 ---------- */
.reveal{opacity:1;transform:none}
html[data-motion="on"] .reveal{
  opacity:0;
  transform:translateY(10px);
  transition:opacity .42s ease,transform .42s ease;
}
html[data-motion="on"] .reveal.is-visible{opacity:1;transform:none}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  background-color:var(--ink-900);
  background-image:linear-gradient(180deg,rgba(18,42,68,.55),transparent 140px);
  border-top:1px solid var(--ice-600);
  color:var(--snow);
}
.footer__grid{
  display:grid;
  grid-template-columns:1.35fr 1fr 1fr 1.5fr;
  gap:36px;
  padding-block:56px 44px;
}
.footer__col{min-width:0}
.footer__brand{
  margin:0 0 10px;
  font-size:1.06rem;
  font-weight:800;
  letter-spacing:.22em;
  color:var(--snow);
}
.footer__coord{
  margin:0 0 6px;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--frost);
}
.footer__coord.mono{color:var(--ice-600);letter-spacing:.08em}
.footer__title{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--snow);
}
.footer__title::before{
  content:"";
  width:14px;height:2px;
  background:var(--cyan);
}
.footer__list{display:flex;flex-direction:column;gap:2px;margin-top:14px}
.footer__link{
  display:inline-block;
  padding:5px 0;
  font-size:14px;
  letter-spacing:.08em;
  color:var(--frost);
}
.footer__link:hover{color:var(--cyan);transform:translateX(2px)}
.footer__meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:baseline;
  margin:0 0 10px;
  font-size:13px;
  line-height:1.65;
  letter-spacing:.06em;
  color:var(--frost);
}
.footer__meta .mono{color:var(--snow)}
.footer__bar{
  border-top:1px solid var(--line-soft);
  background:rgba(6,16,25,.6);
}
.footer__bar-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-block:15px;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--frost);
}
.footer__batch{
  display:inline-flex;
  align-items:center;
  gap:9px;
  color:var(--cyan);
  letter-spacing:.14em;
}
.footer__batch::before{
  content:"";
  width:7px;height:7px;
  border-radius:50%;
  background:var(--vermilion);
  box-shadow:0 0 8px rgba(217,79,61,.9);
}
.footer__batch .mono{color:var(--gold)}
.footer__batch:hover{color:var(--snow)}
.footer__note{margin:0;color:var(--frost);letter-spacing:.08em}

/* ---------- 平板 ---------- */
@media (max-width:1024px){
  .grid-12{grid-template-columns:repeat(8,minmax(0,1fr))}
  .col-3{grid-column:span 8}
  .col-4{grid-column:span 4}
  .col-6{grid-column:span 8}
  .col-8{grid-column:span 8}
  .col-9{grid-column:span 8}
  .col-12{grid-column:span 8}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}

/* ---------- 手机 / 折叠导航 ---------- */
@media (max-width:900px){
  .masthead{
    grid-template-columns:1fr auto;
    padding-block:12px 10px;
    gap:12px;
  }
  .masthead__coord{display:none}
  .brand{grid-column:1;text-align:left}
  .brand__link{letter-spacing:.18em;text-indent:.18em}
  .brand__coord{font-size:11px;letter-spacing:.14em;white-space:normal}
  .masthead__actions{grid-column:2;justify-self:end}
  .masthead__actions .btn--ghost{display:none}

  .nav-bar__inner{min-height:0;padding-block:8px}
  .nav-toggle{display:inline-flex}
  .site-nav{
    display:none;
    position:absolute;
    left:0;right:0;top:100%;
    width:100%;
    background:var(--ink-900);
    border-bottom:1px solid var(--ice-600);
    box-shadow:0 22px 40px rgba(3,8,14,.7);
    z-index:70;
  }
  .site-nav[data-open="true"]{display:block}
  .site-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:6px 24px 16px;
  }
  .site-nav__item{border-bottom:1px solid var(--line-soft)}
  .site-nav__item:last-child{border-bottom:none}
  .site-nav__link{padding:16px 0;font-size:15px}
  .site-nav__link::after{bottom:12px;left:0;right:auto;width:42px}
  .site-nav__item--scale .site-nav__link::before{
    left:auto;right:0;transform:none;bottom:18px;
  }
}

/* ---------- 小屏 ---------- */
@media (max-width:600px){
  :root{--gutter:18px}
  body{font-size:16px}
  .grid-12{grid-template-columns:1fr;gap:18px}
  .col-3,.col-4,.col-6,.col-8,.col-9,.col-12{grid-column:span 1}
  .section{padding:40px 0}
  .section--wide{padding:52px 0}
  .panel{padding:18px}
  .footer__grid{grid-template-columns:1fr;gap:28px;padding-block:40px 32px}
  .footer__bar-inner{flex-direction:column;align-items:flex-start;gap:8px}
  .brand__coord{display:none}
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html[data-motion="on"] .reveal{opacity:1;transform:none}
}