/* ===== 63棋牌电玩 · 共享 Site Kit ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,picture{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}

:root{
  --ink-900:#05081A;
  --ink-800:#0A0F2C;
  --ink-700:#141C45;
  --glass:#1D2A63;
  --cyan:#31E8D8;
  --teal:#10A79A;
  --gold:#F3B44C;
  --pink:#FF5E8E;
  --paper:#EEF2FB;
  --mist:#97A3CC;
  --line:rgba(151,163,204,.18);
  --line-strong:rgba(151,163,204,.32);
  --line-cyan:rgba(49,232,216,.30);
  --shell:1240px;
  --gutter:clamp(16px,4vw,40px);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-display:"PingFang SC","Helvetica Neue",system-ui,"Microsoft YaHei","Segoe UI",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  --shadow:0 20px 48px -26px rgba(5,8,26,.92);
  --ease:cubic-bezier(.22,.68,.32,1);
}

body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--paper);
  background:
    radial-gradient(1180px 600px at 84% -14%,rgba(49,232,216,.13),transparent 62%),
    radial-gradient(900px 520px at 2% 4%,rgba(255,94,142,.10),transparent 60%),
    var(--ink-800);
  background-attachment:fixed;
  min-height:100vh;
  overflow-x:hidden;
}

/* ---------- 焦点与无障碍 ---------- */
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}
.skip-link{
  position:absolute;top:-80px;left:var(--gutter);z-index:200;
  padding:10px 18px;border-radius:0 0 var(--r-sm) var(--r-sm);
  background:var(--cyan);color:var(--ink-900);font-weight:700;font-size:14px;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:0}

/* ---------- 通用排版 ---------- */
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.tilt{transform:skewX(-2.2deg)}
.display{
  font-family:var(--font-display);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.04;
  transform:skewX(-2.2deg);
}
.display--xl{font-size:clamp(40px,7.6vw,88px);line-height:.98}
.display--light{font-weight:300;letter-spacing:-.01em}
.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--gold);
}
.lede{font-size:clamp(16px,2vw,18px);color:var(--mist);max-width:40ch}
.prose{
  background:var(--paper);color:var(--ink-900);
  border-radius:var(--r-md);padding:clamp(20px,3.4vw,40px);
  max-width:76ch;font-size:16px;line-height:1.75;
}
.prose h2,.prose h3{margin-top:1.6em;line-height:1.3}
.prose h2{font-size:clamp(22px,3vw,30px)}
.prose h3{font-size:clamp(18px,2.4vw,22px)}
.prose p{margin-top:.9em}
.prose a{color:#0B6F68;text-decoration:underline;text-underline-offset:3px}

/* ---------- 骨架 ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.site-main{position:relative;z-index:1;display:block}
.section{padding-block:clamp(48px,7vw,96px)}
.section__head{margin-bottom:clamp(22px,3.4vw,40px);display:flex;flex-direction:column;gap:10px}
.section-title{font-family:var(--font-display);font-weight:800;font-size:clamp(26px,4vw,34px);line-height:1.16;letter-spacing:-.01em}

/* ---------- 头部：速览条 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,rgba(10,15,44,.97),rgba(10,15,44,.88));
  border-bottom:1px solid var(--line-cyan);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.header-strip{background:rgba(29,42,99,.42);border-bottom:1px solid var(--line)}
.header-strip__inner{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto auto;
  align-items:center;
  gap:clamp(10px,2.4vw,28px);
  min-height:38px;padding-block:6px;
}
.header-strip__brief{font-size:13px;color:var(--mist);letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.header-strip__version{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--mist);white-space:nowrap}
.header-strip__key{font-size:11px;letter-spacing:.14em;color:var(--mist);opacity:.8}
.header-strip__version .mono{color:var(--gold);letter-spacing:.06em}
.header-strip__sep{width:1px;height:12px;background:var(--line-strong)}
.header-strip__meta{display:inline-flex;align-items:center;gap:12px;justify-self:end}
.header-strip__collect{font-size:12px;color:var(--mist);white-space:nowrap}

/* ---------- 头部：导航带 ---------- */
.header-bar{position:relative}
.header-bar__inner{
  display:flex;align-items:center;gap:clamp(14px,2.4vw,32px);
  padding-block:clamp(10px,1.6vw,16px);
}
.brand{display:flex;flex-direction:column;gap:2px;flex:0 0 auto}
.brand__mark{
  font-family:var(--font-display);
  font-weight:800;font-size:clamp(19px,2.4vw,24px);line-height:1;
  letter-spacing:-.01em;transform:skewX(-4deg);
  background:linear-gradient(96deg,var(--paper),var(--cyan) 88%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.brand__meta{font-size:10.5px;letter-spacing:.14em;color:var(--mist)}
.brand--footer .brand__mark{font-size:clamp(20px,2.6vw,26px)}

.primary-nav{flex:1 1 auto;display:flex;justify-content:flex-end}
.primary-nav__list{
  display:flex;align-items:center;
  gap:clamp(10px,1.7vw,26px);
  counter-reset:navidx;
}
.primary-nav__item{counter-increment:navidx;display:flex}
.primary-nav__link{
  position:relative;
  display:inline-flex;align-items:baseline;gap:6px;
  padding:10px 2px;
  font-size:15px;color:var(--mist);letter-spacing:.02em;
  transition:color .24s var(--ease);
}
.primary-nav__link::before{
  content:counter(navidx,decimal-leading-zero);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;
  color:var(--gold);opacity:.7;
}
.primary-nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:3px;height:2px;
  background:var(--gold);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .3s var(--ease),background-color .3s var(--ease);
}
.primary-nav__link:hover{color:var(--paper)}
.primary-nav__link:hover::after{transform:scaleX(1)}
.primary-nav__link[aria-current="page"]{color:var(--paper);font-weight:600}
.primary-nav__link[aria-current="page"]::after{
  transform:scaleX(1);background:var(--cyan);
  box-shadow:0 0 12px rgba(49,232,216,.55);
}
.primary-nav__link[aria-current="page"]::before{color:var(--cyan);opacity:1}

.header-utility{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.utility-link{
  font-size:13px;color:var(--mist);
  border-bottom:1px dashed var(--line-strong);padding-bottom:2px;
  transition:color .24s var(--ease),border-color .24s var(--ease);
}
.utility-link:hover{color:var(--cyan);border-color:var(--cyan)}

/* ---------- 汉堡按钮 ---------- */
.nav-toggle{
  display:none;flex:0 0 auto;
  width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line-cyan);
  background:rgba(29,42,99,.5);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle__bar{
  display:block;width:19px;height:2px;border-radius:2px;
  background:var(--cyan);
  transition:transform .26s var(--ease),opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 阅读进度 ---------- */
.progress{
  position:absolute;left:0;right:0;bottom:-1px;height:3px;
  background:rgba(151,163,204,.14);pointer-events:none;overflow:hidden;
}
.progress__bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--teal),var(--cyan) 62%,var(--gold));
  box-shadow:0 0 14px rgba(49,232,216,.45);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;letter-spacing:.03em;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.btn--primary{background:var(--cyan);color:var(--ink-900);box-shadow:0 10px 26px -14px rgba(49,232,216,.9)}
.btn--primary:hover{background:#5cf2e5;transform:translateY(-1px)}
.btn--ghost{border-color:var(--line-cyan);color:var(--paper);background:rgba(29,42,99,.45)}
.btn--ghost:hover{background:rgba(49,232,216,.14);border-color:var(--cyan);color:var(--cyan)}
.btn--sm{padding:8px 15px;font-size:13px}

/* ---------- 标签与筹码 ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;
  color:var(--mist);background:rgba(20,28,69,.6);
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.chip--alert{
  color:var(--pink);border-color:rgba(255,94,142,.55);
  background:rgba(255,94,142,.12);
}
.chip--alert:hover{background:rgba(255,94,142,.22)}
.chip--gold{color:var(--gold);border-color:rgba(243,180,76,.45);background:rgba(243,180,76,.10)}
.chip--live{color:var(--cyan);border-color:var(--line-cyan);background:rgba(49,232,216,.10)}
.tag{
  display:inline-block;padding:3px 10px;border-radius:var(--r-sm);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--gold);background:rgba(243,180,76,.10);border:1px solid rgba(243,180,76,.32);
}

/* ---------- 状态灯与装饰分隔 ---------- */
.dot{
  display:inline-block;width:9px;height:9px;border-radius:50%;
  background:var(--teal);box-shadow:0 0 0 3px rgba(16,167,154,.18);
  flex:0 0 auto;
}
.dot--live{background:var(--cyan);box-shadow:0 0 0 3px rgba(49,232,216,.18);animation:breathe 2.4s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.35}}
.divider{
  height:3px;border:0;margin-block:clamp(28px,4vw,52px);
  background:linear-gradient(90deg,var(--teal),var(--cyan) 34%,rgba(151,163,204,.12) 34%,rgba(151,163,204,.12) 100%);
}
.divider--aces{
  height:2px;
  background:repeating-linear-gradient(90deg,var(--gold) 0 26px,transparent 26px 40px);
  opacity:.55;
}

/* ---------- 网格与卡片 ---------- */
.grid{display:grid;gap:clamp(14px,2vw,24px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid--asym{grid-template-columns:repeat(12,minmax(0,1fr))}
.grid--asym>*{grid-column:span 6}
.card{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:linear-gradient(160deg,rgba(20,28,69,.94),rgba(10,15,44,.94));
  padding:clamp(16px,2.2vw,26px);
  transition:border-color .26s var(--ease),transform .26s var(--ease);
}
.card:hover{border-color:var(--line-cyan);transform:translateY(-2px)}
.card__title{font-size:clamp(17px,2.2vw,20px);font-weight:700;line-height:1.4}
.card__meta{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--mist)}

/* ---------- 索引列表（目录型跳转路径） ---------- */
.index-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.index-list__item{
  display:flex;align-items:baseline;gap:14px;
  padding:14px 4px;border-bottom:1px solid var(--line);
  transition:background-color .24s var(--ease),padding-left .24s var(--ease);
}
.index-list__item:hover{background:rgba(49,232,216,.06);padding-left:12px}
.index-list__num{font-family:var(--font-mono);font-size:12px;color:var(--gold);flex:0 0 auto}

/* ---------- 图片容器基础规则 ---------- */
.media{
  position:relative;overflow:hidden;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:linear-gradient(155deg,var(--ink-700),var(--ink-900));
  box-shadow:var(--shadow);
}
.media>img,.media>picture>img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.94) contrast(1.06);
}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(5,8,26,0) 42%,rgba(5,8,26,.74));
}
.media--hero{aspect-ratio:21/9}
.media--wide{aspect-ratio:16/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media--empty{
  background:
    repeating-linear-gradient(135deg,rgba(151,163,204,.14) 0 2px,transparent 2px 14px),
    linear-gradient(155deg,var(--glass),var(--ink-900));
}
.media__caption{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--mist);
}

/* ---------- 折叠块 ---------- */
.collapse{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:rgba(20,28,69,.72);overflow:hidden;
}
.collapse+.collapse{margin-top:10px}
.collapse__summary{
  cursor:pointer;list-style:none;
  display:flex;align-items:center;gap:12px;
  padding:14px 18px;font-size:15px;font-weight:600;
}
.collapse__summary::-webkit-details-marker{display:none}
.collapse__summary::before{
  content:"+";font-family:var(--font-mono);font-size:15px;color:var(--cyan);
  width:16px;text-align:center;flex:0 0 auto;
}
.collapse[open]>.collapse__summary::before{content:"–"}
.collapse__summary:hover{background:rgba(49,232,216,.07)}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding-block:14px}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--mist)}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__item+.breadcrumb__item::before{content:"/";color:rgba(151,163,204,.5)}
.breadcrumb__link{color:var(--mist);transition:color .22s var(--ease)}
.breadcrumb__link:hover{color:var(--cyan)}
.breadcrumb__item[aria-current="page"]{color:var(--paper)}

/* ---------- 显现动效 ---------- */
[data-js] [data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
[data-js] [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;
  margin-top:clamp(40px,7vw,90px);
  background:linear-gradient(180deg,rgba(20,28,69,.55),var(--ink-900) 42%);
  border-top:1px solid var(--line-cyan);
  color:var(--paper);
}
.footer-timeline{border-bottom:1px solid var(--line);background:rgba(29,42,99,.30)}
.footer-timeline__inner{
  display:flex;align-items:center;gap:clamp(14px,3vw,34px);
  padding-block:14px;flex-wrap:wrap;
}
.footer-timeline__label{font-size:11px;letter-spacing:.22em;color:var(--gold);flex:0 0 auto}
.footer-timeline__list{display:flex;flex-wrap:wrap;gap:clamp(12px,2.6vw,34px);align-items:center;flex:1 1 auto}
.footer-timeline__item{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;color:var(--mist)}
.footer-timeline__code{color:var(--paper);letter-spacing:.08em}
.footer-timeline__text{white-space:nowrap}

.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:clamp(20px,3.4vw,44px);
  padding-block:clamp(32px,5vw,60px);
}
.footer-col{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.footer-col--brand{gap:14px}
.footer-col__title{
  font-size:13px;font-weight:700;letter-spacing:.16em;
  color:var(--paper);text-transform:uppercase;
  padding-bottom:8px;border-bottom:2px solid rgba(49,232,216,.35);
}
.footer-col__text{font-size:13.5px;color:var(--mist);max-width:34ch}
.footer-col__text--mono{color:var(--gold);letter-spacing:.08em}
.footer-list{display:flex;flex-direction:column;gap:9px}
.footer-list a{
  position:relative;font-size:14px;color:var(--mist);
  transition:color .22s var(--ease);
}
.footer-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;
  background:var(--gold);transform:scaleX(0);transform-origin:left center;
  transition:transform .28s var(--ease);
}
.footer-list a:hover{color:var(--paper)}
.footer-list a:hover::after{transform:scaleX(1)}
.footer-list--plain{gap:10px}
.footer-contact{display:flex;gap:10px;font-size:13px;color:var(--mist);line-height:1.6}
.footer-contact__key{
  flex:0 0 42px;font-size:10.5px;letter-spacing:.14em;color:var(--gold);
  padding-top:3px;
}
.footer-contact__val{color:var(--paper);word-break:break-word}

.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 24px;
  padding-block:18px 26px;border-top:1px solid var(--line);
}
.footer-legal__copy{font-size:12.5px;color:var(--mist)}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:18px;font-size:12.5px}
.footer-legal__links a{color:var(--mist);transition:color .22s var(--ease)}
.footer-legal__links a:hover{color:var(--cyan)}

/* ---------- 右下角收藏提示 ---------- */
.collect-tip{
  position:fixed;right:clamp(14px,2.4vw,28px);bottom:clamp(14px,2.4vw,28px);z-index:50;
  display:none;align-items:center;gap:9px;
  padding:10px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line-cyan);
  background:rgba(29,42,99,.72);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  font-size:12.5px;color:var(--paper);
  box-shadow:var(--shadow);
}
.collect-tip__dot{
  width:8px;height:8px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 10px rgba(49,232,216,.8);
  animation:breathe 2.4s ease-in-out infinite;
}

/* ---------- 平板 ---------- */
@media (max-width:1080px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-col--brand{grid-column:1/-1}
}
@media (min-width:1024px){
  .collect-tip{display:inline-flex}
}

/* ---------- 移动导航与窄屏 ---------- */
@media (max-width:920px){
  .header-strip__inner{grid-template-columns:auto auto;justify-content:space-between}
  .header-strip__brief{display:none}
  .header-strip__collect{display:none}
  .header-bar__inner{justify-content:space-between;gap:12px}
  .nav-toggle{display:inline-flex}
  .header-utility{display:none}

  .primary-nav{
    position:absolute;left:0;right:0;top:100%;
    display:block;
    visibility:hidden;opacity:0;transform:translateY(-8px);
    max-height:min(70vh,520px);overflow-y:auto;
    padding:8px var(--gutter) 22px;
    background:linear-gradient(180deg,rgba(20,28,69,.985),rgba(10,15,44,.995));
    border-top:1px solid var(--line-cyan);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 44px -28px rgba(5,8,26,.95);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s linear;
  }
  .primary-nav[data-open]{visibility:visible;opacity:1;transform:none}
  .primary-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .primary-nav__link{
    display:flex;width:100%;padding:14px 4px;
    font-size:16px;
    border-bottom:1px solid rgba(151,163,204,.12);
  }
  .primary-nav__link::after{display:none}
  .primary-nav__link[aria-current="page"]{
    color:var(--cyan);
    box-shadow:inset 2px 0 0 var(--cyan);
    padding-left:12px;
  }
  .primary-nav__link[aria-current="page"]::before{color:var(--cyan)}
  .primary-nav__link:hover{padding-left:12px;background:rgba(49,232,216,.06)}
}

@media (max-width:640px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr)}
  .grid--asym>*{grid-column:span 12}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px}
  .footer-timeline__text{white-space:normal}
  .footer-legal{flex-direction:column;align-items:flex-start}
  .media--tall{aspect-ratio:4/5}
}

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