/* ==========================================================================
   九游娱乐CN中文官方站 — /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 头部 / 页脚 / 通用组件
   ========================================================================== */

:root{
  --ink-900:#0B1F1A;
  --ink-850:#0F1614;
  --panel:#17211E;
  --tactical:#23403A;
  --mist:#8FA8A0;
  --paper:#EDF2EA;
  --lime:#C6FF3D;
  --ember:#FF5A2B;
  --mint:#7CE0C3;

  --shell:1240px;
  --pad:clamp(16px,4vw,40px);
  --pill-h:58px;
  --radius-pill:999px;
  --radius-panel:18px;
  --ease:cubic-bezier(.2,.7,.3,1);

  --font-head:"Source Han Sans SC","Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100%;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.005em;
  background-color:var(--ink-900);
  background-image:
    linear-gradient(rgba(143,168,160,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(143,168,160,.04) 1px,transparent 1px),
    radial-gradient(1100px 620px at 78% -10%,rgba(35,64,58,.62),transparent 68%),
    radial-gradient(760px 420px at 6% 108%,rgba(124,224,195,.09),transparent 70%),
    linear-gradient(180deg,#0B1F1A 0%,#0F1614 100%);
  background-size:64px 64px,64px 64px,auto,auto,auto;
  background-attachment:fixed;
  overflow-x:hidden;
}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:var(--mint);text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:800;letter-spacing:-.02em;line-height:1.05;margin:0}
p{margin:0}
table{border-collapse:collapse}
::selection{background:var(--lime);color:#08150F}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:8px}

/* ---------- 中文排版与通用文本 ---------- */
.mono,.data,.stat,.rank,.eyebrow,.section-num,.tag,.chip,.breadcrumbs,.footer-bottom,.footer-meta{
  font-variant-numeric:tabular-nums;
}
.mono{font-family:var(--font-mono);font-weight:500;color:var(--paper)}
.display{
  font-family:var(--font-head);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:.92;
  font-size:clamp(34px,5.6vw,76px);
  margin:0;
}
.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.32em;
  text-transform:uppercase;
  color:var(--mint);
  margin:0;
}
.slash{display:inline-block;width:28px;height:3px;background:var(--lime);transform:skewX(-24deg);vertical-align:middle}

/* ---------- 布局 ---------- */
.shell{width:min(var(--shell),calc(100% - var(--pad)*2));margin-inline:auto}
#main-content,main{display:block;padding-block-start:clamp(96px,12vw,132px)}
.section{padding-block:clamp(46px,7vw,96px);position:relative}
.section-head{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:clamp(12px,2vw,26px);
  align-items:end;
  margin-bottom:clamp(20px,3vw,38px);
}
.section-num{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(28px,4vw,54px);
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1px var(--tactical);
}
.section-title{
  font-family:var(--font-head);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:.94;
  font-size:clamp(30px,4.6vw,60px);
  margin:0;
}
.band{
  position:relative;
  background:linear-gradient(180deg,rgba(23,33,30,.92),rgba(15,22,20,.92));
  border-block:1px solid var(--tactical);
  padding-block:clamp(28px,4vw,54px);
}
.grid,.grid-2,.grid-3,.grid-12{display:grid;gap:clamp(16px,2.2vw,28px)}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.grid-12{grid-template-columns:repeat(12,minmax(0,1fr))}
@media (max-width:900px){.grid-12{grid-template-columns:repeat(6,minmax(0,1fr))}}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-family:var(--font-head);font-weight:700;font-size:14.5px;letter-spacing:.01em;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),
             border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--lime);color:#08150F;box-shadow:0 12px 34px -20px rgba(198,255,61,.95)}
.btn-primary:hover{transform:translateY(-1px);background:#D8FF74}
.btn-ghost{background:transparent;color:var(--paper);border-color:var(--tactical)}
.btn-ghost:hover{border-color:var(--mint);color:var(--mint)}
.btn-ember{background:var(--ember);color:#190803}
.btn-ember:hover{transform:translateY(-1px);background:#FF7350}

/* ---------- 标签 / 筛选按钮 ---------- */
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--radius-pill);
  border:1px solid var(--tactical);
  background:rgba(23,33,30,.62);
  color:var(--mist);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;
  cursor:pointer;
  transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.chip:hover{color:var(--paper);border-color:var(--mint)}
.chip[aria-pressed="true"],.chip.is-active{background:var(--lime);border-color:var(--lime);color:#08150F;font-weight:700}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:6px;
  border:1px solid var(--tactical);color:var(--mist);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
}
.tag-lime{background:var(--lime);border-color:var(--lime);color:#08150F;font-weight:700}
.tag-ember{background:var(--ember);border-color:var(--ember);color:#190803;font-weight:700}

/* ---------- 数据表达 ---------- */
.stat{
  font-family:var(--font-mono);font-weight:700;line-height:1;
  font-size:clamp(34px,5vw,68px);color:var(--lime);letter-spacing:-.02em;
}
.stat-sm{font-size:clamp(20px,2.4vw,30px)}
.stat-ember{color:var(--ember)}
.rank{
  font-family:var(--font-mono);font-weight:700;line-height:1;
  font-size:clamp(24px,3vw,42px);
  color:transparent;-webkit-text-stroke:1.4px var(--lime);
}
.panel{background:var(--panel);border:1px solid var(--tactical);border-radius:var(--radius-panel);padding:clamp(18px,2.4vw,30px)}
.ledger{display:grid;gap:1px;background:var(--tactical);border:1px solid var(--tactical);border-radius:14px;overflow:hidden}
.ledger-row{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;
  gap:clamp(10px,1.6vw,22px);align-items:center;
  background:var(--panel);padding:14px clamp(12px,2vw,22px);
  transition:background .18s var(--ease);
}
.ledger-row:hover{background:#1D2A26}
.data-table{width:100%;font-variant-numeric:tabular-nums}
.data-table th{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--mist);text-align:left;padding:10px 14px;border-bottom:1px solid var(--tactical);
}
.data-table td{padding:12px 14px;border-bottom:1px solid rgba(35,64,58,.55);font-variant-numeric:tabular-nums}
.data-table tbody tr:hover{background:rgba(35,64,58,.32)}

/* ---------- 图片容器（页面阶段放置图片） ---------- */
.media{
  position:relative;display:block;width:100%;
  aspect-ratio:16 / 9;overflow:hidden;
  border-radius:16px;border:1px solid var(--tactical);
  background:linear-gradient(150deg,#17211E 0%,#0B1F1A 58%,#132A24 100%);
}
.media::after{
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background-image:
    linear-gradient(rgba(198,255,61,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(198,255,61,.07) 1px,transparent 1px);
  background-size:40px 40px;
  opacity:.75;
}
.media img,.media picture,.media video{display:block;width:100%;height:100%}
.media img{object-fit:cover}
.media[data-ratio="4x3"]{aspect-ratio:4 / 3}
.media[data-ratio="1x1"]{aspect-ratio:1 / 1}
.media[data-ratio="21x9"]{aspect-ratio:21 / 9}
.media figcaption,.media-caption{
  position:absolute;left:0;right:0;bottom:0;z-index:3;
  padding:14px 16px;font-family:var(--font-mono);font-size:12.5px;color:var(--mist);
  background:linear-gradient(180deg,transparent,rgba(11,31,26,.92));
}

/* ---------- 面包屑 ---------- */
.breadcrumbs{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.06em;color:var(--mist);padding-block:14px}
.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:8px}
.breadcrumbs li{display:flex;align-items:center;gap:8px}
.breadcrumbs li+li::before{content:"/";color:var(--tactical)}
.breadcrumbs a{color:var(--mist)}
.breadcrumbs a:hover{color:var(--mint)}
.breadcrumbs [aria-current="page"]{color:var(--paper)}

/* ---------- 正文长文 ---------- */
.prose{max-width:72ch;font-size:17px;line-height:1.75;color:var(--mist)}
.prose h2{font-size:clamp(24px,3vw,34px);color:var(--paper);margin:2em 0 .6em}
.prose h3{font-size:clamp(19px,2.2vw,24px);color:var(--paper);margin:1.6em 0 .5em}
.prose p{margin:0 0 1.1em}
.prose strong{color:var(--paper)}
.prose a{color:var(--mint);border-bottom:1px solid rgba(124,224,195,.4)}
.prose ul,.prose ol{list-style:revert;padding-left:1.3em;margin:0 0 1.1em}
.prose li{margin-bottom:.4em}
.prose code{
  font-family:var(--font-mono);font-size:.92em;color:var(--lime);
  background:rgba(198,255,61,.08);padding:2px 6px;border-radius:6px;
}

/* ---------- 手风琴 ---------- */
.acc{border-top:1px solid var(--tactical)}
.acc summary{
  cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:16px 0;font-family:var(--font-head);font-weight:700;color:var(--paper);
}
.acc summary::-webkit-details-marker{display:none}
.acc summary::after{content:"+";font-family:var(--font-mono);color:var(--lime);font-size:20px;line-height:1}
.acc[open] summary::after{content:"–"}
.acc-body{padding-bottom:16px;color:var(--mist);max-width:70ch}

/* ---------- 显现 / 筛选状态 ---------- */
html[data-js="on"] [data-reveal]{
  opacity:0;transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
html[data-js="on"] [data-reveal].is-visible{opacity:1;transform:none}
.is-filtered{display:none !important}

/* ---------- 跳到主要内容 ---------- */
.skip-link{
  position:fixed;top:-120px;left:16px;z-index:200;
  background:var(--lime);color:#08150F;
  padding:10px 18px;border-radius:0 0 12px 12px;
  font-family:var(--font-head);font-weight:700;font-size:14px;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:0}

/* ---------- 头部 ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:90;
  padding-top:clamp(10px,1.6vw,16px);
  pointer-events:none;
}
.progress-rail{
  position:fixed;top:0;left:0;right:0;height:3px;z-index:120;
  pointer-events:none;background:rgba(35,64,58,.55);
}
.progress-fill{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--mint),var(--lime))}
.header-shell{pointer-events:auto}
.header-pill{
  display:flex;align-items:center;gap:clamp(12px,2vw,28px);
  padding:10px clamp(12px,1.8vw,20px);
  border-radius:var(--radius-pill);
  background:rgba(11,31,26,.82);
  border:1px solid rgba(35,64,58,.92);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);
  backdrop-filter:blur(14px) saturate(1.2);
  box-shadow:0 20px 46px -30px rgba(0,0,0,.95);
  transition:padding .3s var(--ease),background .3s var(--ease),border-color .3s var(--ease);
}
[data-scrolled] .header-pill{padding-block:6px;background:rgba(11,31,26,.95);border-color:rgba(124,224,195,.24)}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--paper)}
.brand-mark{
  display:grid;place-items:center;flex:0 0 38px;width:38px;height:38px;
  font-family:var(--font-mono);font-weight:700;font-size:18px;color:#08150F;
  background:linear-gradient(135deg,var(--lime),#8FD11F);
  clip-path:polygon(24% 0,100% 0,76% 100%,0 100%);
}
.brand-copy{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-name{font-family:var(--font-head);font-weight:800;font-size:15px;letter-spacing:-.01em;white-space:nowrap}
.brand-tagline{font-family:var(--font-mono);font-size:11.5px;color:var(--mist);white-space:nowrap;transition:opacity .25s var(--ease)}
[data-scrolled] .brand-tagline{opacity:0}

.nav{margin-left:auto;display:flex;align-items:center;gap:clamp(6px,1.2vw,16px)}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  display:inline-block;padding:9px 13px;border-radius:var(--radius-pill);
  color:var(--mist);font-size:14.5px;white-space:nowrap;
  transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.nav-link:hover{color:var(--paper);background:rgba(35,64,58,.7)}
.nav-link[aria-current="page"]{color:#08150F;background:var(--lime);font-weight:700}
.nav-cta{flex:0 0 auto}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  margin-left:auto;padding:8px 14px;
  border:1px solid var(--tactical);border-radius:var(--radius-pill);
  color:var(--paper);font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;
  cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--mint);color:var(--mint)}
.nav-toggle-lines{display:grid;gap:4px}
.nav-toggle-lines span{display:block;width:16px;height:2px;background:var(--lime);transition:transform .2s var(--ease),opacity .2s var(--ease)}
[aria-expanded="true"] .nav-toggle-lines span:nth-child(1){transform:translateY(6px) rotate(45deg)}
[aria-expanded="true"] .nav-toggle-lines span:nth-child(2){opacity:0}
[aria-expanded="true"] .nav-toggle-lines span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 右侧悬浮榜单入口 */
.side-rail{
  position:fixed;right:clamp(8px,1.4vw,20px);top:50%;transform:translateY(-50%);
  z-index:85;pointer-events:auto;
}
.rail-link{
  display:flex;flex-direction:column;align-items:center;gap:8px;
  padding:15px 10px;border-radius:var(--radius-pill);
  background:rgba(23,33,30,.93);
  border:1px solid var(--tactical);
  color:var(--lime);text-decoration:none;
  transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.rail-link:hover{border-color:var(--lime);background:rgba(198,255,61,.13);transform:translateX(-3px)}
.rail-text{
  writing-mode:vertical-rl;text-orientation:upright;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.3em;
}

/* 回到顶部 */
.to-top{
  position:fixed;right:clamp(8px,1.4vw,20px);bottom:clamp(18px,3vw,32px);
  z-index:85;width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:14px;border:1px solid var(--tactical);
  background:rgba(23,33,30,.93);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s,border-color .2s var(--ease);
}
.to-top.is-on{opacity:1;visibility:visible;transform:none}
.to-top:hover{border-color:var(--lime)}
.to-top-arrow{
  width:11px;height:11px;border-left:2px solid var(--lime);border-top:2px solid var(--lime);
  transform:rotate(45deg) translate(2px,2px);
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;margin-top:clamp(64px,9vw,140px);
  background:var(--ink-850);
  border-top:1px solid var(--tactical);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;
  width:min(340px,48%);height:3px;
  background:linear-gradient(90deg,var(--lime),rgba(198,255,61,0));
}
.footer-shell{padding-block:clamp(38px,5vw,68px) clamp(24px,3vw,38px)}
.footer-top{display:flex;flex-wrap:wrap;gap:clamp(24px,4vw,64px);justify-content:space-between;align-items:flex-start}
.footer-identity{min-width:min(340px,100%)}
.footer-lockup{
  font-family:var(--font-head);font-weight:800;letter-spacing:-.01em;
  font-size:clamp(18px,2.1vw,24px);line-height:1.3;color:var(--paper);margin:0 0 10px;
}
.footer-meta{
  display:flex;align-items:center;gap:10px;margin:0;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.1em;color:var(--mist);
}
.dot-lime{width:8px;height:8px;flex:0 0 8px;background:var(--lime);clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%)}
.footer-links{display:flex;flex-wrap:wrap;gap:10px 22px;max-width:640px}
.footer-links a{
  color:var(--mist);font-size:14.5px;
  padding-bottom:2px;border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.footer-links a:hover{color:var(--lime);border-bottom-color:var(--lime)}
.footer-contact{
  margin-top:clamp(24px,3.4vw,44px);padding-top:clamp(18px,2.4vw,28px);
  border-top:1px dashed var(--tactical);
  display:flex;flex-wrap:wrap;gap:8px 28px;
  font-size:14px;color:var(--mist);
}
.footer-bottom{
  margin-top:clamp(20px,3vw,32px);padding-top:16px;
  border-top:1px solid var(--tactical);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-family:var(--font-mono);font-size:12.5px;color:rgba(143,168,160,.78);
}
.footer-bottom p{margin:0}
.footer-bottom .mono{color:var(--paper)}

/* ---------- 平板 ---------- */
@media (max-width:1180px){
  .brand-tagline{display:none}
  .nav-link{padding:9px 11px;font-size:14px}
}

/* ---------- 移动 ---------- */
@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  .side-rail{display:none}
  .nav{
    position:fixed;left:var(--pad);right:var(--pad);top:78px;
    flex-direction:column;align-items:stretch;gap:6px;
    margin:0;padding:16px;
    border-radius:22px;
    background:rgba(11,31,26,.985);
    border:1px solid var(--tactical);
    box-shadow:0 34px 70px -34px #000;
    max-height:calc(100vh - 130px);overflow:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
  }
  .nav[data-open]{opacity:1;visibility:visible;transform:none}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{
    display:block;padding:12px 14px;font-size:16px;border-radius:12px;
    border-left:2px solid transparent;
  }
  .nav-link:hover{background:rgba(35,64,58,.6)}
  .nav-link[aria-current="page"]{border-left-color:#08150F}
  .nav-cta{width:100%;margin-top:8px}
  .header-pill{justify-content:space-between}
  .brand-mark{flex-basis:34px;width:34px;height:34px;font-size:16px}
  .brand-name{font-size:14px}
  .to-top{bottom:14px;right:14px}
  .footer-top{flex-direction:column}
}

@media (max-width:640px){
  body{font-size:16px}
  .header-pill{padding:8px 12px;gap:10px}
  .brand-name{white-space:normal;line-height:1.2}
  .nav-toggle-text{display:none}
  .footer-contact{flex-direction:column;gap:6px}
  .footer-bottom{flex-direction:column;gap:6px}
  .ledger-row{grid-template-columns:auto minmax(0,1fr) auto;row-gap:6px}
}

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