/* =========================================================
   616游戏站 · 共享样式表 /assets/site.css
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg,video{display:block;max-width:100%;height:auto;}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0;}
a{color:inherit;text-decoration:none;}
table{border-collapse:collapse;width:100%;}

/* ---------- 2. 设计令牌 ---------- */
:root{
  --bg:#060A16;
  --panel:#0D1530;
  --line:#1B2950;
  --line-soft:rgba(27,41,80,.42);
  --cyan:#26D9E8;
  --violet:#A05CFF;
  --amber:#FFB627;
  --green:#35D48A;
  --alert:#FF6B57;
  --text:#E8EFFA;
  --text-dim:#8FA3C6;
  --text-soft:#C3D1E7;
  --rail-w:88px;
  --maxw:1320px;
  --pad:clamp(18px,4vw,56px);
  --t-fast:120ms linear;
  --t-mid:180ms ease;
  --radius:2px;
  --font-ui:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;
}

/* ---------- 3. 基础排版与底色 ---------- */
body{
  min-height:100vh;
  padding-left:var(--rail-w);
  color:var(--text);
  font-family:var(--font-ui);
  font-size:16px;
  line-height:1.8;
  background-color:var(--bg);
  background-image:
    linear-gradient(to right,var(--line-soft) 1px,transparent 1px),
    linear-gradient(to bottom,var(--line-soft) 1px,transparent 1px);
  background-size:72px 72px;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
body.is-nav-open{overflow:hidden;}

h1,h2,h3,h4{font-weight:800;line-height:1.24;letter-spacing:-.015em;}
h1{font-size:clamp(34px,4.6vw,54px);line-height:1.06;letter-spacing:-.035em;}
h2{font-size:clamp(23px,2.4vw,32px);letter-spacing:-.02em;}
h3{font-size:clamp(18px,1.7vw,22px);}
h4{font-size:17px;}
p{max-width:40em;}
small{font-size:13px;}

.eyebrow{font-family:var(--font-mono);font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--text-dim);}
.lead{font-size:clamp(16px,1.5vw,19px);color:var(--text-soft);max-width:36em;}
.muted{color:var(--text-dim);}
.mono{font-family:var(--font-mono);}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.01em;color:var(--amber);}

.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;}

a:focus-visible,button:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
  border-radius:var(--radius);
}

/* ---------- 4. 跳过链接 ---------- */
.skip-link{
  position:fixed;top:10px;left:calc(var(--rail-w) + 12px);z-index:300;
  padding:10px 18px;font-size:14px;font-weight:700;line-height:1.2;
  background:var(--cyan);color:#04101A;border-radius:var(--radius);
  transform:translateY(-220%);
  transition:transform var(--t-fast);
}
.skip-link:focus{transform:translateY(0);}

/* ---------- 5. 侧边轨道导航 ---------- */
.site-header{position:relative;z-index:80;}

.rail{
  position:fixed;top:0;left:0;bottom:0;width:var(--rail-w);z-index:80;
  display:flex;flex-direction:column;
  background:var(--panel);
  border-right:1px solid var(--line);
  padding:16px 0 12px;
  overflow-y:auto;overflow-x:hidden;
  scrollbar-width:none;
}
.rail::-webkit-scrollbar{width:0;height:0;}

.rail__brand{
  padding:0 8px 14px;
  border-bottom:1px solid var(--line);
}
.brand{display:flex;flex-direction:column;align-items:center;gap:8px;}
.brand__mark{
  display:grid;place-items:center;width:44px;height:44px;
  border:1px solid var(--cyan);border-radius:var(--radius);
  font-family:var(--font-mono);font-size:14px;font-weight:700;letter-spacing:.02em;
  color:var(--cyan);
  background:linear-gradient(155deg,rgba(38,217,232,.16),rgba(160,92,255,.08));
  transition:border-color var(--t-fast),color var(--t-fast);
}
.brand:hover .brand__mark{border-color:var(--violet);color:var(--violet);}
.brand__word{font-size:11px;font-weight:800;letter-spacing:.06em;color:var(--text);white-space:nowrap;}
.brand__tag{
  font-family:var(--font-mono);font-size:8px;line-height:1.5;letter-spacing:.1em;
  text-transform:uppercase;color:var(--text-dim);text-align:center;
}

.rail__nav{padding:12px 0;flex:0 0 auto;}
.nav-list{display:flex;flex-direction:column;}
.nav-item{position:relative;}
.nav-link{
  position:relative;display:flex;flex-direction:column;align-items:center;gap:6px;
  padding:12px 6px;color:var(--text-dim);
  transition:color var(--t-fast),background-color var(--t-fast);
}
.nav-link::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  background:transparent;transition:background-color var(--t-fast);
}
.nav-link__idx{font-family:var(--font-mono);font-size:9px;letter-spacing:.1em;color:#2A3C68;}
.nav-link__label{
  writing-mode:vertical-rl;
  font-size:12px;font-weight:600;letter-spacing:.18em;line-height:1.1;
}
.nav-link:hover{color:var(--cyan);background:rgba(38,217,232,.06);}
.nav-link:hover::before{background:rgba(38,217,232,.5);}
.nav-link:active{background:var(--cyan);color:#04101A;}
.nav-link[aria-current="page"]{color:var(--cyan);}
.nav-link[aria-current="page"]::before{background:var(--cyan);}
.nav-link[aria-current="page"] .nav-link__idx{color:var(--amber);}

.rail__foot{
  margin-top:auto;
  display:flex;flex-direction:column;gap:8px;
  padding:14px 8px 0;
  border-top:1px solid var(--line);
}
.rail__cta{
  display:block;width:100%;
  padding:10px 4px;text-align:center;
  border:1px solid var(--line);border-radius:var(--radius);
  font-size:11px;font-weight:700;line-height:1.4;letter-spacing:.04em;
  color:var(--text);
  transition:border-color var(--t-fast),color var(--t-fast),background-color var(--t-fast);
}
.rail__cta:hover{border-color:var(--cyan);color:var(--cyan);}
.rail__cta:active{background:var(--cyan);color:#04101A;border-color:var(--cyan);}
.rail__cta--violet:hover{border-color:var(--violet);color:var(--violet);}
.rail__cta--violet:active{background:var(--violet);color:#0A0418;border-color:var(--violet);}

.rail__status{
  display:flex;flex-direction:column;align-items:center;gap:6px;
  text-align:center;padding-top:4px;
}
.rail__status-text{font-family:var(--font-mono);font-size:9px;line-height:1.5;letter-spacing:.06em;color:var(--text-dim);}

/* 状态灯 */
.lamp{
  display:inline-block;flex:0 0 auto;
  width:8px;height:8px;border-radius:50%;
  background:var(--text-dim);
}
.lamp--live{background:var(--green);animation:lamp-breathe 2.4s ease-in-out infinite;}
.lamp--beta{background:var(--violet);}
.lamp--time{background:var(--amber);}
.lamp--warn{background:var(--alert);}
@keyframes lamp-breathe{
  0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(53,212,138,.45);}
  50%{opacity:.55;box-shadow:0 0 0 4px rgba(53,212,138,0);}
}

/* 移动端按钮与遮罩 */
.nav-toggle{
  position:fixed;top:12px;left:12px;z-index:120;
  display:none;align-items:center;justify-content:center;
  width:46px;height:46px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel);
  transition:border-color var(--t-fast);
}
.nav-toggle:hover{border-color:var(--cyan);}
.nav-toggle__icon{
  position:relative;display:block;width:20px;height:2px;
  background:var(--text);
  transition:background-color var(--t-fast);
}
.nav-toggle__icon::before,.nav-toggle__icon::after{
  content:"";position:absolute;left:0;width:20px;height:2px;
  background:var(--text);
  transition:transform var(--t-mid),top var(--t-mid),background-color var(--t-fast);
}
.nav-toggle__icon::before{top:-6px;}
.nav-toggle__icon::after{top:6px;}
.site-header[data-open] .nav-toggle{border-color:var(--cyan);}
.site-header[data-open] .nav-toggle__icon{background:transparent;}
.site-header[data-open] .nav-toggle__icon::before{top:0;transform:rotate(45deg);background:var(--cyan);}
.site-header[data-open] .nav-toggle__icon::after{top:0;transform:rotate(-45deg);background:var(--cyan);}

.nav-scrim{
  position:fixed;inset:0;z-index:70;
  background:rgba(3,6,14,.74);
  opacity:0;visibility:hidden;
  transition:opacity var(--t-mid),visibility var(--t-mid);
}
.site-header[data-open] .nav-scrim{opacity:1;visibility:visible;}

/* 滚动进度线 */
.scroll-progress{
  position:fixed;top:0;left:var(--rail-w);width:2px;height:100vh;z-index:90;
  background:rgba(27,41,80,.5);pointer-events:none;
}
.scroll-progress__bar{
  display:block;width:100%;height:100%;
  background:linear-gradient(180deg,var(--cyan),var(--violet));
  transform:scaleY(0);transform-origin:top center;
  transition:transform 140ms linear;
}

/* ---------- 6. 布局容器 ---------- */
.wrap{
  width:100%;max-width:var(--maxw);
  margin-inline:auto;padding-inline:var(--pad);
}
.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:24px;
}
.col-main{grid-column:1 / 8;min-width:0;}
.col-side{grid-column:9 / -1;min-width:0;}

.site-main{display:block;min-height:60vh;}

.section{padding-block:clamp(44px,6vw,84px);}
.section + .section{border-top:1px solid var(--line);}
.section__head{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 18px;
  margin-bottom:clamp(20px,3vw,34px);
}
.section__index{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.16em;
  color:var(--amber);
}
.section__title{font-size:clamp(22px,2.3vw,30px);}
.section__note{
  font-size:13px;color:var(--text-dim);line-height:1.7;max-width:34em;
  margin-left:auto;
}

/* ---------- 7. 面板 / 标签 / 按钮 ---------- */
.panel{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:clamp(18px,2.2vw,26px);
}
.panel--hover{transition:border-color var(--t-fast),background-color var(--t-fast);}
.panel--hover:hover{border-color:var(--cyan);background:#101A38;}
.panel__head{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;
  margin-bottom:14px;
}
.panel__label{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--text-dim);
}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;
  border:1px solid var(--line);border-radius:var(--radius);
  font-size:12px;line-height:1.6;letter-spacing:.02em;
  color:var(--text-dim);
}
.tag--cyan{color:var(--cyan);border-color:rgba(38,217,232,.45);}
.tag--violet{color:var(--violet);border-color:rgba(160,92,255,.45);}
.tag--amber{color:var(--amber);border-color:rgba(255,182,39,.45);}
.tag--green{color:var(--green);border-color:rgba(53,212,138,.45);}
.tag--alert{color:var(--alert);border-color:rgba(255,107,87,.5);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;
  border:1px solid var(--line);border-radius:var(--radius);
  font-size:14px;font-weight:700;letter-spacing:.04em;line-height:1.3;
  color:var(--text);background:transparent;
  transition:border-color var(--t-fast),color var(--t-fast),background-color var(--t-fast);
}
.btn:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(38,217,232,.06);}
.btn:active{background:var(--cyan);border-color:var(--cyan);color:#04101A;}
.btn--primary{border-color:var(--cyan);color:var(--cyan);}
.btn--violet{border-color:var(--violet);color:var(--violet);}
.btn--violet:hover{border-color:var(--violet);color:var(--violet);background:rgba(160,92,255,.08);}
.btn--violet:active{background:var(--violet);border-color:var(--violet);color:#0A0418;}
.btn--amber{border-color:rgba(255,182,39,.6);color:var(--amber);}
.btn--amber:hover{border-color:var(--amber);color:var(--amber);background:rgba(255,182,39,.08);}
.btn--amber:active{background:var(--amber);border-color:var(--amber);color:#1A1000;}
.btn--ghost{border-color:transparent;color:var(--text-dim);padding-inline:6px;}
.btn--ghost:hover{border-color:transparent;color:var(--cyan);background:transparent;}

/* ---------- 8. 面包屑 ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  color:var(--text-dim);
}
.crumbs a{transition:color var(--t-fast);}
.crumbs a:hover{color:var(--cyan);}
.crumbs__sep{color:#2A3C68;}

/* ---------- 9. 数据表 ---------- */
.data-table{width:100%;font-size:15px;}
.data-table th,.data-table td{
  padding:14px 12px;text-align:left;vertical-align:top;
  border-bottom:1px solid var(--line);
}
.data-table th{
  font-family:var(--font-mono);font-size:12px;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--text-dim);
}
.data-table thead th{border-bottom-color:#24365F;}
.data-table tbody tr{transition:background-color var(--t-fast);}
.data-table tbody tr:hover{background:rgba(38,217,232,.05);}
.data-table td:first-child{white-space:nowrap;}

/* ---------- 10. 图片占位容器 ---------- */
.frame{
  position:relative;overflow:hidden;
  background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius);
}
.frame::before{content:"";display:block;padding-top:56.25%;}
.frame--wide::before{padding-top:42%;}
.frame--square::before{padding-top:100%;}
.frame__media{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;
}
.frame__fallback{
  position:absolute;inset:0;
  display:grid;place-items:center;gap:6px;
  padding:16px;text-align:center;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;
  color:var(--text-dim);
  background-image:
    linear-gradient(to right,rgba(27,41,80,.7) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(27,41,80,.7) 1px,transparent 1px);
  background-size:32px 32px;
}
.frame__cap{margin-top:10px;font-size:13px;color:var(--text-dim);line-height:1.7;}

/* ---------- 11. 页脚 ---------- */
.site-footer{
  margin-top:clamp(48px,7vw,96px);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(13,21,48,.25),rgba(13,21,48,.9));
}
.footer__inner{
  width:100%;max-width:var(--maxw);
  margin-inline:auto;padding-inline:var(--pad);
}
.footer__top{
  display:grid;
  grid-template-columns:minmax(190px,1fr) 2.2fr;
  gap:clamp(24px,4vw,64px);
  padding-block:clamp(34px,4.4vw,60px);
  border-bottom:1px solid var(--line);
}
.footer__brand{display:flex;flex-direction:column;gap:12px;}
.footer__logo{display:flex;align-items:center;gap:12px;margin:0;}
.footer__mark{
  display:grid;place-items:center;width:40px;height:40px;flex:0 0 auto;
  border:1px solid var(--cyan);border-radius:var(--radius);
  font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--cyan);
}
.footer__name{font-size:17px;font-weight:800;letter-spacing:.02em;}
.footer__closing{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--text-dim);
}
.footer__nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.footer__title{
  font-family:var(--font-mono);font-size:11px;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:var(--text-dim);
  margin-bottom:14px;
}
.footer__list{display:flex;flex-direction:column;gap:9px;}
.footer__link{
  display:inline-block;font-size:14px;color:var(--text-soft);
  border-bottom:1px solid transparent;
  transition:color var(--t-fast),border-color var(--t-fast);
}
.footer__link:hover{color:var(--cyan);border-bottom-color:var(--cyan);}
.footer__link[aria-current="page"]{color:var(--cyan);}

.footer__meta{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:12px 24px;
  padding-block:clamp(20px,2.6vw,32px);
  align-items:start;
}
.footer__contact{grid-column:span 6;font-size:13px;line-height:1.8;color:var(--text-dim);margin:0;}
.footer__region{grid-column:span 3;font-size:13px;line-height:1.8;color:var(--text-dim);margin:0;}
.footer__legal{
  grid-column:span 3;text-align:right;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:var(--text-dim);margin:0;white-space:nowrap;
}

/* ---------- 12. 显现（渐进增强） ---------- */
.js [data-reveal]{opacity:0;transition:opacity 260ms linear;}
.js [data-reveal].is-visible{opacity:1;}

/* ---------- 13. 响应式：平板 ---------- */
@media (max-width:1200px){
  .footer__contact{grid-column:span 7;}
  .footer__region{grid-column:span 5;}
  .footer__legal{grid-column:span 12;text-align:left;white-space:normal;}
}
@media (max-width:1023px){
  body{padding-left:0;}
  .skip-link{left:12px;}
  .scroll-progress{display:none;}

  .nav-toggle{display:inline-flex;}

  .rail{
    width:272px;
    padding:72px 0 16px;
    transform:translateX(-100%);
    visibility:hidden;
    border-right:1px solid var(--line);
    box-shadow:24px 0 64px rgba(0,0,0,.55);
    transition:transform 280ms cubic-bezier(.2,.7,.2,1),visibility 280ms linear;
  }
  .site-header[data-open] .rail{transform:translateX(0);visibility:visible;}

  .rail__brand{border-bottom:1px solid var(--line);padding:0 16px 16px;}
  .brand{flex-direction:row;align-items:center;gap:12px;}
  .brand__mark{width:38px;height:38px;}
  .brand__word{font-size:15px;letter-spacing:.04em;}
  .brand__tag{font-size:9px;text-align:left;letter-spacing:.12em;}

  .rail__nav{padding:10px 0;}
  .nav-link{
    flex-direction:row;align-items:center;gap:12px;
    padding:13px 20px;
  }
  .nav-link__label{
    writing-mode:horizontal-tb;font-size:14px;letter-spacing:.06em;
  }
  .nav-link__idx{font-size:10px;letter-spacing:.14em;}
  .nav-link::before{top:8px;bottom:8px;}
  .nav-link[aria-current="page"]{
    background:rgba(38,217,232,.09);
    border-right:2px solid var(--cyan);
  }

  .rail__foot{margin-top:0;padding:14px 16px 0;}
  .rail__cta{text-align:left;padding:11px 14px;font-size:13px;}
  .rail__status{flex-direction:row;justify-content:flex-start;}
  .rail__status-text{font-size:11px;}

  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr));}
  .col-main{grid-column:1 / -1;}
  .col-side{grid-column:1 / -1;}
  .section__note{margin-left:0;}

  .footer__top{grid-template-columns:1fr;}
  .footer__nav{grid-template-columns:repeat(3,minmax(0,1fr));}
  .footer__contact,.footer__region{grid-column:span 12;}
}

/* ---------- 14. 响应式：手机 ---------- */
@media (max-width:640px){
  body{font-size:15px;line-height:1.8;}
  .wrap{padding-inline:18px;}
  .grid-12{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
  .panel{padding:16px;}
  .footer__nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 18px;}
  .data-table{font-size:14px;}
  .data-table th,.data-table td{padding:11px 8px;}
  .section{padding-block:clamp(32px,9vw,52px);}
  .section__head{margin-bottom:18px;}
  .btn{width:100%;}
  .btn--ghost{width:auto;}
}

/* ---------- 15. 尊重减弱动效 ---------- */
@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 !important;}
  .scroll-progress__bar{transition:none;}
}