/* ============================================================
   j9九游会主站 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 头部 / 页脚 / 通用组件
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root{
  --pitch-ink:#06170F;
  --turf-deep:#0C2A1C;
  --turf-line:#17452E;
  --card-slate:#0F2119;
  --neon-cyan:#34F5C5;
  --cyan-muted:#1FA98A;
  --flare-orange:#FF5A1F;
  --flare-soft:#FFA46B;
  --chalk:#F2F7F3;
  --smoke:#9DB3A8;
  --whistle:#E8F6EE;
  --ink-on-light:#0A2018;

  --rail-w:88px;
  --bar-h:56px;
  --note-w:200px;
  --gutter:clamp(18px,4vw,64px);
  --maxw:1440px;

  --font-display:"Archivo Narrow","Oswald","Source Han Sans SC","Noto Sans SC","PingFang SC",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;

  --ease:ease-out;
  --t-fast:.18s;
  --t-mid:.26s;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:var(--bar-h);
  background:var(--pitch-ink);
  color:var(--chalk);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{display:block;max-width:100%}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--neon-cyan);outline-offset:3px}
::selection{background:var(--neon-cyan);color:#04140D}

/* ---------- 3. 排版工具 ---------- */
.display{
  font-family:var(--font-display);
  font-weight:700;
  text-transform:uppercase;
  font-size:clamp(28px,5vw,54px);
  line-height:1.05;
  letter-spacing:-.01em;
  color:var(--chalk);
}
.display--sm{font-size:clamp(22px,3vw,32px)}
.lede{
  font-family:var(--font-serif);
  font-size:clamp(17px,1.6vw,20px);
  line-height:1.85;
  color:#CFE3D8;
  max-width:44ch;
}
.prose{max-width:68ch}
.prose p{margin-bottom:1.1em}
.prose p:last-child{margin-bottom:0}
.prose h2,.prose h3{margin:1.6em 0 .6em;font-family:var(--font-display);text-transform:uppercase;letter-spacing:.02em}
.prose a{color:var(--cyan-muted);border-bottom:1px solid transparent;transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease)}
.prose a:hover{color:var(--neon-cyan);border-bottom-color:var(--neon-cyan)}
.prose blockquote{
  margin:1.4em 0;padding:16px 20px;
  background:rgba(232,246,238,.94);
  color:var(--ink-on-light);
  border-left:2px solid var(--neon-cyan);
  font-family:var(--font-serif);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--neon-cyan);
}
.eyebrow::before{content:"";width:2px;height:14px;background:var(--neon-cyan);flex:none}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}

/* ---------- 4. 布局骨架 ---------- */
.site-main{display:block;min-height:64vh}
.canvas{
  width:min(var(--maxw),100%);
  margin:0 auto;
  padding:clamp(28px,5vw,72px) var(--gutter);
}
.section{padding:clamp(40px,7vw,96px) 0}
.section--deep{background:var(--turf-deep)}
.section--light{background:var(--whistle);color:var(--ink-on-light)}
.section--light .display{color:var(--ink-on-light)}
.section--light .lede{color:#22453A}
.section--light .eyebrow{color:#0E6E56}
.section--light .eyebrow::before{background:#0E6E56}
.section--light .rule{background:rgba(10,32,24,.16)}
.grid{display:grid;gap:clamp(18px,3vw,40px)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.grid--asym{grid-template-columns:minmax(0,1fr)}

/* ---------- 5. 通用组件 ---------- */
.stat{display:flex;flex-direction:column;gap:6px;padding:14px 0}
.stat__value{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(24px,3vw,38px);
  line-height:1;
  color:var(--chalk);
}
.stat__value--cyan{color:var(--neon-cyan)}
.stat__value--flare{color:var(--flare-orange)}
.stat__label{
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--smoke);
}
.stat__note{font-size:13px;color:var(--smoke);max-width:30ch}

.panel{
  background:var(--card-slate);
  border:1px solid var(--turf-line);
  padding:clamp(18px,2.4vw,28px);
}
.panel__head{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding-bottom:12px;margin-bottom:16px;border-bottom:1px solid var(--turf-line);
}
.panel__title{
  font-family:var(--font-display);text-transform:uppercase;
  letter-spacing:.06em;font-size:15px;color:var(--chalk);
}
.panel__meta{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--smoke)}

.meter{
  display:block;position:relative;width:100%;height:6px;
  background:linear-gradient(90deg,var(--turf-line),rgba(23,69,46,.2));
  overflow:hidden;
}
.meter__fill{
  display:block;height:100%;width:var(--w,0);
  background:var(--neon-cyan);
  transition:width .4s var(--ease);
}

.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border:1px solid var(--turf-line);
  background:rgba(15,33,25,.6);color:var(--smoke);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease);
}
.chip:hover{color:var(--chalk);border-color:var(--cyan-muted)}
.chip--active{border-color:var(--neon-cyan);color:var(--neon-cyan);background:rgba(52,245,197,.08)}
.chip--flare{border-color:rgba(255,90,31,.55);color:var(--flare-soft)}

.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 20px;border:1px solid var(--turf-line);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--chalk);background:transparent;
  transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease);
}
.btn:hover{border-color:var(--neon-cyan);color:var(--neon-cyan)}
.btn--solid{background:var(--neon-cyan);border-color:var(--neon-cyan);color:#04140D}
.btn--solid:hover{background:var(--chalk);border-color:var(--chalk);color:#04140D}
.btn--ghost{border-color:var(--turf-line);color:var(--smoke)}
.btn--ghost:hover{color:var(--chalk);border-color:var(--chalk)}
.btn--flare{border-color:var(--flare-orange);color:var(--flare-soft)}
.btn--flare:hover{background:var(--flare-orange);border-color:var(--flare-orange);color:#1A0700}

.note{
  border-left:2px solid var(--neon-cyan);
  padding:2px 0 2px 16px;
  color:var(--smoke);
  font-size:14px;
}
.rule{height:1px;border:0;margin:0;background:var(--turf-line)}
.rule--cyan{background:linear-gradient(90deg,var(--neon-cyan) 0 64px,var(--turf-line) 64px 100%)}

.slice{
  position:relative;display:block;
  background:var(--turf-deep);
  border:1px solid var(--turf-line);
  padding:clamp(18px,2.6vw,28px);
  padding-bottom:calc(clamp(18px,2.6vw,28px) + 14px);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 20px),0 100%);
  transition:background-color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.slice:hover{background:var(--card-slate);border-color:var(--cyan-muted)}
.slice--alt{clip-path:polygon(0 0,100% 0,100% 100%,0 calc(100% - 20px))}
.slice__title{
  display:block;
  font-family:var(--font-display);text-transform:uppercase;
  letter-spacing:.06em;font-size:clamp(16px,1.6vw,20px);color:var(--chalk);
}
.slice__meta{
  display:block;margin-top:6px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--smoke);
}
.slice:hover .slice__title{color:var(--neon-cyan)}

.media-frame{
  position:relative;overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--turf-line);
  background:linear-gradient(135deg,var(--turf-deep) 0%,var(--pitch-ink) 72%);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.06)}
.media-frame__slot{
  position:absolute;inset:0;display:grid;place-items:center;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;text-transform:uppercase;
  color:rgba(157,179,168,.62);
  background-image:repeating-linear-gradient(115deg,rgba(23,69,46,.55) 0 1px,transparent 1px 15px);
}
.media-frame__tag{
  position:absolute;left:0;bottom:0;
  padding:6px 12px;
  background:rgba(6,23,15,.84);
  border-top:1px solid var(--turf-line);
  border-right:1px solid var(--turf-line);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--neon-cyan);
}
.media-frame__caption{
  display:block;padding-top:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--smoke);
}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--smoke);
}
.breadcrumb__item{color:var(--smoke)}
.breadcrumb__link{color:var(--smoke);transition:color var(--t-fast) var(--ease)}
.breadcrumb__link:hover{color:var(--neon-cyan)}
.breadcrumb__sep{color:var(--turf-line)}

/* ---------- 6. 头部 ---------- */
.skip-link{
  position:fixed;top:8px;left:8px;z-index:200;
  padding:10px 16px;
  background:var(--neon-cyan);color:#04140D;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  transform:translateY(-160%);
  transition:transform var(--t-fast) var(--ease);
}
.skip-link:focus{transform:translateY(0)}

.site-header{
  position:fixed;top:0;left:0;z-index:60;
  width:100%;height:var(--bar-h);
  display:flex;align-items:center;
  background:var(--pitch-ink);
  border-bottom:1px solid var(--turf-line);
}
.site-header__bar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  width:100%;padding:0 14px;
}

.brand{display:inline-flex;align-items:center;gap:10px;color:var(--chalk);transition:color var(--t-fast) var(--ease)}
.brand:hover{color:var(--neon-cyan)}
.brand__glyph{
  display:grid;place-items:center;flex:none;
  width:32px;height:32px;
  border:1px solid var(--neon-cyan);
  color:var(--neon-cyan);
  font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.04em;
}
.brand__glyph--lg{width:40px;height:40px;font-size:13px}
.brand__text{display:flex;flex-direction:column;gap:2px;line-height:1.15}
.brand__name{
  font-family:var(--font-display);font-weight:700;
  font-size:14px;letter-spacing:.1em;text-transform:uppercase;color:inherit;
}
.brand__meta{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;
  color:var(--smoke);white-space:nowrap;
}

.nav-toggle{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 11px;
  border:1px solid var(--turf-line);
  color:var(--chalk);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan-muted);color:var(--neon-cyan)}
.nav-toggle__lines{display:grid;gap:3px;width:16px}
.nav-toggle__lines i{display:block;height:1px;background:currentColor;transition:transform var(--t-fast) var(--ease),opacity var(--t-fast) var(--ease)}
.nav-toggle[aria-expanded="true"]{border-color:var(--neon-cyan);color:var(--neon-cyan)}
.nav-toggle[aria-expanded="true"] .nav-toggle__lines i:nth-child(1){transform:translateY(4px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__lines i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__lines i:nth-child(3){transform:translateY(-4px) rotate(-45deg)}

.rail-nav{
  position:fixed;top:0;left:0;z-index:70;
  display:flex;flex-direction:column;
  width:min(84vw,320px);height:100dvh;
  padding:22px 18px 28px;
  background:var(--turf-deep);
  border-right:1px solid var(--turf-line);
  overflow-y:auto;
  transform:translateX(-102%);
  transition:transform var(--t-mid) var(--ease);
}
.site-header[data-open="true"] .rail-nav,
.rail-nav[data-open="true"]{transform:translateX(0)}

.rail-nav__list{display:flex;flex-direction:column;gap:2px}
.rail-nav__item{display:block}
.rail-nav__link{
  position:relative;display:flex;align-items:baseline;gap:10px;
  padding:12px 10px 12px 16px;
  color:var(--smoke);
  border:1px solid transparent;
  transition:color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.rail-nav__link::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;
  background:var(--neon-cyan);
  transform:scaleY(0);transform-origin:top;
  transition:transform var(--t-fast) var(--ease);
}
.rail-nav__link:hover{color:var(--chalk);background:var(--card-slate);border-color:var(--turf-line)}
.rail-nav__link[aria-current="page"]{
  color:var(--neon-cyan);background:var(--card-slate);border-color:var(--turf-line);
}
.rail-nav__link[aria-current="page"]::before{transform:scaleY(1)}
.rail-nav__idx{font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;color:var(--cyan-muted)}
.rail-nav__link[aria-current="page"] .rail-nav__idx{color:var(--neon-cyan)}
.rail-nav__label{font-size:15px;letter-spacing:.06em}

.rail-foot{
  display:grid;grid-template-columns:repeat(3,1fr);gap:8px;
  margin-top:auto;padding-top:16px;
  border-top:1px solid var(--turf-line);
}
.rail-foot__item{
  display:flex;flex-direction:column;gap:2px;
  padding:8px 4px;text-align:center;
  border:1px solid transparent;
  transition:background-color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.rail-foot__item:hover{background:var(--card-slate);border-color:var(--turf-line)}
.rail-foot__k{font-size:11px;color:var(--smoke);letter-spacing:.08em}
.rail-foot__v{font-family:var(--font-mono);font-size:12px;color:var(--neon-cyan);letter-spacing:.06em}

.rail-meter{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--turf-line);overflow:hidden;
}
.rail-meter__fill{
  display:block;width:100%;height:100%;
  background:var(--neon-cyan);
  transform:scaleX(var(--p,0));transform-origin:left center;
  transition:transform .12s linear;
}

.nav-scrim{
  position:fixed;inset:0;z-index:65;
  background:rgba(3,12,8,.72);
  opacity:0;pointer-events:none;
  transition:opacity var(--t-mid) var(--ease);
}
.nav-scrim[data-open="true"]{opacity:1;pointer-events:auto}

/* ---------- 7. 页脚 ---------- */
.site-footer{
  background:var(--turf-deep);
  border-top:1px solid var(--neon-cyan);
}
.site-footer__inner{
  width:min(var(--maxw),100%);
  margin:0 auto;
  padding:clamp(40px,6vw,76px) var(--gutter) 34px;
  display:grid;gap:clamp(26px,4vw,48px);
  grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
}
.footer-brand{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.footer-brand__name{
  font-family:var(--font-display);font-weight:700;
  font-size:16px;letter-spacing:.12em;text-transform:uppercase;color:var(--chalk);
}
.footer-brand__line{color:var(--smoke);font-size:13px;max-width:26ch}
.footer-brand__tag{
  display:inline-block;padding:4px 10px;
  border:1px solid var(--turf-line);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--flare-soft);
}
.footer-col{display:block}
.footer-col__title{
  padding-bottom:10px;margin-bottom:14px;
  border-bottom:1px solid var(--turf-line);
  font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.2em;text-transform:uppercase;color:var(--neon-cyan);
}
.footer-col__list{display:grid;gap:9px}
.footer-col__link{
  position:relative;display:inline-block;
  font-size:14px;color:var(--smoke);
  transition:color var(--t-fast) var(--ease);
}
.footer-col__link::after{
  content:"";position:absolute;left:0;bottom:-2px;
  width:100%;height:1px;background:var(--neon-cyan);
  transform:scaleX(0);transform-origin:left center;
  transition:transform var(--t-fast) var(--ease);
}
.footer-col__link:hover{color:var(--chalk)}
.footer-col__link:hover::after{transform:scaleX(1)}
.footer-col__text{font-size:14px;color:var(--smoke)}
.footer-col__text--mono{font-family:var(--font-mono);letter-spacing:.02em;color:#B9CCC3}
.site-footer__legal{
  width:min(var(--maxw),100%);
  margin:0 auto;
  padding:20px var(--gutter) 30px;
  border-top:1px solid var(--turf-line);
  display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between;
}
.site-footer__legal-item{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--smoke);
}

/* ---------- 8. 动效 / 显现 ---------- */
[data-reveal]{
  opacity:0;transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
[data-reveal].is-in{opacity:1;transform:none}

/* ---------- 9. 断点 ---------- */
@media (min-width:640px){
  .grid--asym{grid-template-columns:minmax(0,2fr) minmax(160px,1fr)}
  .site-footer__inner{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
}
@media (min-width:1000px){
  body{padding-top:0;padding-left:var(--rail-w)}

  .site-header{
    width:var(--rail-w);height:100dvh;
    flex-direction:column;align-items:stretch;
    border-bottom:0;border-right:1px solid var(--turf-line);
  }
  .site-header__bar{
    flex-direction:column;align-items:center;justify-content:flex-start;
    gap:14px;padding:20px 0 0;
  }
  .brand{flex-direction:column;gap:12px}
  .brand__text{align-items:center;gap:6px}
  .brand__name{
    writing-mode:vertical-rl;
    font-size:15px;letter-spacing:.24em;
  }
  .brand__meta{font-size:10px;letter-spacing:.02em}
  .nav-toggle{display:none}
  .nav-scrim{display:none}

  .rail-nav{
    position:static;transform:none;
    width:100%;height:auto;flex:1 1 auto;
    padding:22px 0 0;
    background:transparent;border-right:0;
    overflow-y:auto;overflow-x:hidden;
    align-items:center;
  }
  .site-header[data-open="true"] .rail-nav,
  .rail-nav[data-open="true"]{transform:none}
  .rail-nav__list{flex-direction:column;align-items:center;gap:4px;width:100%}
  .rail-nav__item{display:flex;justify-content:center;width:100%}
  .rail-nav__link{
    flex-direction:column;align-items:center;gap:6px;
    padding:12px 4px;border:0;
  }
  .rail-nav__link::before{left:auto;right:0;top:10px;bottom:10px}
  .rail-nav__link:hover{background:var(--turf-deep)}
  .rail-nav__label{writing-mode:vertical-rl;font-size:13px;letter-spacing:.2em}
  .rail-nav__idx{font-size:10px;letter-spacing:.06em}

  .rail-foot{
    width:100%;margin-top:auto;
    grid-template-columns:1fr;gap:4px;
    padding:14px 8px 18px;
  }
  .rail-foot__item{padding:6px 2px}
  .rail-foot__k{font-size:10px}
  .rail-foot__v{font-size:11px}

  .rail-meter{left:auto;right:0;top:0;bottom:0;width:2px;height:auto}
  .rail-meter__fill{transform:scaleY(var(--p,0));transform-origin:center top}

  .grid--asym{grid-template-columns:minmax(0,3fr) minmax(180px,var(--note-w))}
  .site-footer__inner{grid-template-columns:1.3fr repeat(4,minmax(0,1fr))}
}
@media (min-width:1280px){
  .canvas{padding-top:clamp(48px,5vw,88px);padding-bottom:clamp(48px,5vw,88px)}
}

/* ---------- 10. 降低动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  [data-reveal]{opacity:1;transform:none}
  .rail-meter__fill{transition:none}
  .meter__fill{transition:none}
}