/* ==========================================================================
   poker-xinputao.com.cn 共享外壳样式 / assets/site.css
   框架式导航 · 技术蓝图网格 · 东方夜色
   ========================================================================== */

:root{
  --grape:#5B2A86;
  --grape-deep:#3B1A5C;
  --violet:#8B5FBF;
  --ink:#0E1F1A;
  --ink-deep:#0A1714;
  --plum:#1A0F2E;
  --gold:#D4A24C;
  --gold-soft:#E8C27A;
  --porcelain:#F5F1E8;
  --lilac:#C9BFD9;
  --graphite:#2C2C2C;
  --glass:rgba(91,42,134,0.12);
  --line:rgba(201,191,217,0.14);
  --line-strong:rgba(201,191,217,0.28);
  --text:#EDE7F4;
  --font-head:"Source Han Serif SC","Noto Serif SC","Songti SC","SimSun",Georgia,serif;
  --font-body:Inter,"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --rail-w:236px;
  --top-h:74px;
  --radius:22px;
  --radius-lg:28px;
  --pill:999px;
  --ease:cubic-bezier(.22,.8,.24,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--ink);
  background-image:
    linear-gradient(rgba(201,191,217,0.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(201,191,217,0.045) 1px,transparent 1px),
    radial-gradient(120% 80% at 82% -8%,rgba(91,42,134,0.45),transparent 62%),
    radial-gradient(80% 60% at 4% 4%,rgba(212,162,76,0.09),transparent 58%);
  background-size:76px 76px,76px 76px,auto,auto;
  background-repeat:repeat,repeat,no-repeat,no-repeat;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;padding:0}
a{color:inherit}
ul,ol{margin:0;padding:0}
p{margin:0 0 1em}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}
::selection{background:rgba(212,162,76,0.32);color:#fff}
.skip-link:focus{outline-offset:5px}

/* ---------- 排版 ---------- */
h1,h2,h3,h4,h5{
  font-family:var(--font-head);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-0.01em;
  margin:0 0 0.6em;
  color:var(--porcelain);
}
h1{font-size:clamp(34px,5.2vw,48px)}
h2{font-size:clamp(26px,3.4vw,36px)}
h3{font-size:clamp(20px,2.2vw,28px)}
h4{font-size:20px}
h1+h2,h2+h3{margin-top:0.2em}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:0.02em}
.eyebrow{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:0.22em;
  text-transform:uppercase;color:var(--gold);margin:0 0 14px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor;opacity:0.75}
.lede{font-size:clamp(16px,1.6vw,19px);line-height:1.8;color:var(--lilac);max-width:64ch}
.prose p{max-width:68ch}
.prose p:last-child{margin-bottom:0}
.prose ul,.prose ol{max-width:68ch;padding-left:1.3em;margin:0 0 1.1em}
.prose li{margin-bottom:0.4em}
.rule{height:1px;border:0;background:var(--line);margin:0}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- 布局 ---------- */
.wrap{width:min(1240px,100% - 2*clamp(18px,4vw,48px));margin-inline:auto}
.grid{display:grid;gap:clamp(16px,2.2vw,28px)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr))}
.grid--4{grid-template-columns:repeat(auto-fit,minmax(min(100%,200px),1fr))}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.section{position:relative;padding-block:clamp(46px,7vw,96px)}
.section--tight{padding-block:clamp(32px,4vw,56px)}
.section--porcelain{
  background:linear-gradient(180deg,var(--porcelain),#EDE7DA);
  color:var(--graphite);
}
.section--porcelain h1,.section--porcelain h2,
.section--porcelain h3,.section--porcelain h4{color:var(--plum)}
.section--porcelain .lede{color:#4A4458}
.section--porcelain .eyebrow{color:var(--grape)}
.section--porcelain .rule{background:rgba(44,44,44,0.14)}
.section--plum{background:linear-gradient(180deg,var(--plum),#120A20)}
.section--plum .eyebrow{color:var(--gold-soft)}

#main-content{display:block;min-height:60vh;padding-top:var(--top-h)}

/* ---------- 跳过链接 ---------- */
.skip-link{
  position:fixed;top:12px;left:12px;z-index:200;
  transform:translateY(-220%);
  padding:10px 18px;border-radius:var(--pill);
  background:var(--gold);color:#20130A;font-size:14px;font-weight:600;
  text-decoration:none;transition:transform .25s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0)}

/* ---------- 站点框架 ---------- */
.site-frame{position:relative;z-index:60}

.frame-top{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:var(--top-h);
  display:flex;align-items:center;gap:clamp(12px,2vw,24px);
  padding:0 clamp(16px,3vw,32px);
  background:linear-gradient(180deg,rgba(10,23,20,0.92),rgba(10,23,20,0.78));
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-strong);
}
.frame-grid{
  position:absolute;left:0;right:0;top:100%;height:12px;
  pointer-events:none;opacity:0.7;
  background-image:repeating-linear-gradient(90deg,var(--line-strong) 0 1px,transparent 1px 26px);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
}
.scroll-meter{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(201,191,217,0.10);
}
.scroll-meter-bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--grape),var(--violet) 55%,var(--gold));
  transition:transform .12s linear;
}

/* 品牌 */
.brand{
  display:inline-flex;align-items:center;gap:12px;
  text-decoration:none;color:var(--porcelain);flex:0 0 auto;
}
.brand-mark{
  display:grid;place-items:center;
  width:38px;height:38px;border-radius:14px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--grape),var(--violet));
  border:1px solid rgba(212,162,76,0.45);
  font-family:var(--font-head);font-weight:800;font-size:18px;color:var(--porcelain);
  box-shadow:0 10px 24px -14px rgba(91,42,134,0.9);
}
.brand-text{display:grid;gap:1px}
.brand-name{
  font-family:var(--font-head);font-weight:800;
  font-size:17px;line-height:1.25;letter-spacing:0.01em;
}
.brand-tagline{
  font-family:var(--font-mono);font-size:11px;line-height:1.3;
  letter-spacing:0.12em;color:var(--gold);
}
.brand--foot .brand-mark{width:44px;height:44px;font-size:20px}
.brand--foot .brand-name{font-size:19px}

.frame-meta{display:none;gap:8px;margin:0;align-items:center}
.frame-actions{display:flex;align-items:center;gap:10px;margin-left:auto}

/* 胶囊与状态 */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:var(--pill);
  border:1px solid var(--line-strong);background:var(--glass);
  color:var(--lilac);font-size:12px;letter-spacing:0.08em;white-space:nowrap;
}
.chip--gold{color:var(--gold);border-color:rgba(212,162,76,0.45);background:rgba(212,162,76,0.08)}
.status{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:0.06em;color:var(--lilac);
}
.status::before{
  content:"";width:8px;height:8px;border-radius:50%;
  background:var(--gold);box-shadow:0 0 0 4px rgba(212,162,76,0.16);
}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:8px;
  border:1px solid var(--line-strong);background:rgba(245,241,232,0.04);
  font-family:var(--font-mono);font-size:11px;letter-spacing:0.1em;color:var(--lilac);
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--pill);
  font-family:var(--font-body);font-size:14px;font-weight:600;line-height:1;letter-spacing:0.02em;
  text-decoration:none;cursor:pointer;border:1px solid transparent;
  transition:transform .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn--gold{
  background:linear-gradient(135deg,var(--gold),var(--gold-soft));
  color:#20130A;border-color:rgba(212,162,76,0.6);
  box-shadow:0 14px 30px -18px rgba(212,162,76,0.95);
}
.btn--gold:hover{transform:translateY(-2px)}
.btn--purple{
  background:linear-gradient(135deg,var(--grape),var(--grape-deep));
  color:var(--porcelain);border-color:rgba(139,95,191,0.55);
}
.btn--purple:hover{transform:translateY(-2px);border-color:var(--violet)}
.btn--ghost{
  background:rgba(245,241,232,0.04);color:var(--porcelain);
  border-color:var(--line-strong);
}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn--sm{padding:9px 16px;font-size:13px}

/* 移动导航按钮 */
.nav-toggle{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 14px;border-radius:var(--pill);
  border:1px solid var(--line-strong);background:rgba(245,241,232,0.04);
  color:var(--porcelain);font-size:13px;font-weight:600;cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--gold);color:var(--gold)}
.nav-toggle-bars{position:relative;display:block;width:16px;height:10px;flex:0 0 auto}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";position:absolute;left:0;right:0;height:2px;border-radius:2px;
  background:currentColor;transition:transform .28s var(--ease),top .28s var(--ease);
}
.nav-toggle-bars::before{top:0}
.nav-toggle-bars::after{top:8px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{top:4px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{top:4px;transform:rotate(-45deg)}
.nav-toggle-label{font-family:var(--font-mono);letter-spacing:0.1em}

/* 栏目索引栏 */
.frame-rail{
  position:fixed;top:0;bottom:0;left:0;z-index:70;
  width:min(86vw,320px);
  display:flex;flex-direction:column;gap:10px;
  padding:calc(var(--top-h) + 16px) 18px 28px;
  background:linear-gradient(180deg,rgba(26,15,46,0.98),rgba(10,23,20,0.98));
  border-right:1px solid var(--line-strong);
  transform:translateX(-101%);
  transition:transform .38s var(--ease);
  overflow-y:auto;
  overscroll-behavior:contain;
}
.frame-rail[data-open]{transform:translateX(0)}
.rail-label{
  margin:0 6px 8px;font-size:11px;letter-spacing:0.24em;
  color:var(--gold);text-transform:uppercase;
}
.rail-list{list-style:none;display:grid;gap:4px}
.rail-link{
  display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:baseline;
  padding:11px 14px;border-radius:16px;
  border:1px solid transparent;text-decoration:none;
  color:var(--lilac);font-size:15px;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.rail-num{font-size:11px;letter-spacing:0.12em;color:var(--lilac);opacity:0.8}
.rail-link:hover{color:var(--porcelain);background:var(--glass);border-color:var(--line-strong)}
.rail-link:hover .rail-num{color:var(--gold);opacity:1}
.rail-link[aria-current="page"]{
  color:var(--porcelain);
  background:linear-gradient(90deg,rgba(91,42,134,0.55),rgba(91,42,134,0.10));
  border-color:rgba(212,162,76,0.42);
}
.rail-link[aria-current="page"] .rail-num{color:var(--gold);opacity:1}
.rail-link[aria-current="page"] .rail-text::after{
  content:"";display:block;height:1px;margin-top:6px;
  background:linear-gradient(90deg,var(--gold),transparent);
}
.rail-foot{
  margin:auto 6px 0;padding-top:18px;font-size:11px;letter-spacing:0.1em;
  color:var(--lilac);opacity:0.7;border-top:1px solid var(--line);
}
.frame-scrim{
  position:fixed;inset:0;z-index:65;
  background:rgba(6,12,10,0.62);
  -webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease);
}
.frame-scrim[data-open]{opacity:1;pointer-events:auto}

/* ---------- 通用组件 ---------- */
.panel{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:clamp(20px,3vw,32px);
  position:relative;
}
.card{
  background:rgba(245,241,232,0.04);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
}
.section--porcelain .panel{background:rgba(91,42,134,0.06);border-color:rgba(44,44,44,0.12)}
.section--porcelain .card{background:rgba(255,255,255,0.6);border-color:rgba(44,44,44,0.12)}
.section--porcelain .chip{border-color:rgba(44,44,44,0.18);color:var(--grape);background:rgba(91,42,134,0.06)}
.section--porcelain .tag{border-color:rgba(44,44,44,0.18);color:#4A4458;background:rgba(255,255,255,0.5)}

.num-card{
  position:relative;overflow:hidden;
  padding:26px 24px 28px;
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px solid var(--line);
}
.num-card::after{
  content:"";position:absolute;right:-40%;bottom:-70%;
  width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(139,95,191,0.22),transparent 70%);
  pointer-events:none;
}
.num-tag{
  display:block;margin-bottom:14px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:0.16em;color:var(--gold);
}
.num-card p{margin-bottom:0;color:var(--lilac)}
.section--porcelain .num-card{background:rgba(91,42,134,0.06);border-color:rgba(44,44,44,0.12)}
.section--porcelain .num-card p{color:#4A4458}

.index-list{list-style:none;border-top:1px solid var(--line)}
.index-row{
  display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;
  padding:14px 6px;border-bottom:1px solid var(--line);
  text-decoration:none;color:var(--text);
  transition:background-color .2s var(--ease),padding-left .2s var(--ease);
}
.index-row:hover{background:var(--glass);padding-left:12px}
.index-row .mono{color:var(--gold)}

.breadcrumbs{font-size:12px;letter-spacing:0.1em;color:var(--lilac);margin-bottom:20px}
.crumbs{display:flex;flex-wrap:wrap;gap:10px;list-style:none;font-family:var(--font-mono)}
.crumbs li{display:flex;align-items:center;gap:10px}
.crumbs li+li::before{content:"/";opacity:0.45}
.crumbs a{color:var(--lilac);text-decoration:none;border-bottom:1px solid transparent}
.crumbs a:hover{color:var(--gold);border-bottom-color:currentColor}
.crumbs [aria-current="page"]{color:var(--porcelain)}

/* ---------- 图片容器基础 ---------- */
.media{
  position:relative;overflow:hidden;
  aspect-ratio:16 / 9;border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(145deg,var(--plum),var(--ink) 58%,var(--grape));
}
.media--wide{aspect-ratio:21 / 9}
.media--tall{aspect-ratio:4 / 5}
.media--square{aspect-ratio:1 / 1}
.media--soft{border-radius:36px}
.media>img,.media>video,.media>picture>img{
  display:block;width:100%;height:100%;object-fit:cover;
}
.media::before{
  content:"";position:absolute;inset:0;border-radius:inherit;z-index:2;
  box-shadow:inset 0 0 0 1px rgba(245,241,232,0.08);pointer-events:none;
}
.media-cap{
  margin:12px 0 0;font-family:var(--font-mono);font-size:12px;
  letter-spacing:0.08em;color:var(--lilac);
}

/* ---------- 页脚 ---------- */
.site-foot{
  position:relative;
  margin-top:clamp(48px,6vw,88px);
  padding:0 clamp(18px,4vw,48px);
  background:linear-gradient(180deg,var(--plum),#120A20);
  border-top:1px solid var(--line-strong);
}
.foot-rule{
  height:12px;margin:0 calc(-1 * clamp(18px,4vw,48px)) 0;
  background-image:repeating-linear-gradient(90deg,var(--line-strong) 0 1px,transparent 1px 26px);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  opacity:0.7;
}
.foot-inner{
  width:min(1240px,100%);margin-inline:auto;
  display:grid;gap:clamp(26px,3vw,44px);
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  padding-block:clamp(38px,5vw,64px);
}
.foot-brand{display:grid;gap:14px;justify-items:start}
.foot-note{color:var(--lilac);font-size:14px;max-width:34ch;margin:0}
.foot-hint{font-size:11px;letter-spacing:0.08em;color:var(--lilac);opacity:0.75;margin:0}
.foot-head{
  font-size:11px;letter-spacing:0.2em;color:var(--gold);
  text-transform:uppercase;margin:0 0 14px;
}
.foot-list{list-style:none;display:grid;gap:10px}
.foot-list a{
  color:var(--lilac);font-size:14px;text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.foot-list a:hover{color:var(--porcelain);border-bottom-color:var(--gold)}
.foot-contact{list-style:none;display:grid;gap:12px}
.foot-contact li{display:grid;gap:4px;font-size:14px;color:var(--lilac)}
.foot-contact .mono{font-size:13px;word-break:break-all;color:var(--porcelain)}
.foot-key{font-size:11px;letter-spacing:0.14em;color:var(--gold)}
.foot-col--contact .foot-hint{margin-top:14px}
.foot-base{
  width:min(1240px,100%);margin-inline:auto;
  display:flex;flex-wrap:wrap;gap:10px 26px;justify-content:space-between;
  padding-block:18px 22px;
  border-top:1px solid var(--line);
  font-size:12px;color:var(--lilac);
}
.foot-base p{margin:0;opacity:0.8}

/* ---------- 滚动显入 ---------- */
.has-js [data-reveal]{opacity:0;transform:translateY(16px)}
.has-js [data-reveal].is-in{
  opacity:1;transform:none;
  transition:opacity .6s var(--ease),transform .6s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
}

/* ---------- 断点 ---------- */
@media (max-width:640px){
  :root{--top-h:64px}
  .brand-tagline{display:none}
  .brand-mark{width:34px;height:34px;border-radius:12px;font-size:16px}
  .brand-name{font-size:16px}
  .btn--sm{padding:8px 13px;font-size:12.5px}
  .nav-toggle-label{display:none}
  .nav-toggle{padding:9px 12px}
  .index-row{grid-template-columns:auto 1fr;gap:12px}
  .index-row> .mono:last-child{grid-column:2;opacity:0.75}
  .foot-base{justify-content:flex-start}
}

@media (min-width:641px) and (max-width:1079px){
  .frame-meta{display:inline-flex}
  .foot-inner{grid-template-columns:1fr 1fr;gap:32px}
}

@media (max-width:1079px){
  body.nav-open{overflow:hidden}
}

@media (min-width:1080px){
  .frame-top{left:var(--rail-w)}
  .frame-rail{
    width:var(--rail-w);
    transform:none;
    padding:calc(var(--top-h) + 20px) 16px 26px;
    background:linear-gradient(180deg,rgba(26,15,46,0.72),rgba(10,23,20,0.86));
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
  }
  .frame-scrim{display:none}
  .nav-toggle{display:none}
  .frame-meta{display:inline-flex}
  .frame-actions{margin-left:auto}
  #main-content{padding-left:var(--rail-w)}
  .site-foot{padding-left:calc(var(--rail-w) + clamp(18px,4vw,48px))}
  .foot-rule{margin-left:calc(-1 * (var(--rail-w) + clamp(18px,4vw,48px)))}
  body.nav-open{overflow:auto}
}

@media (min-width:1440px){
  :root{--rail-w:264px}
}

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