/* ============================================================
   奥门皇8指南 · 共享外壳样式 /assets/site.css
   堆叠面板 · 左右分置导航 · 金蓝橙三色分工
   ============================================================ */

:root{
  --ink-900:#080A0D;
  --ink-800:#11151B;
  --steel-700:#1E2530;
  --gold-500:#C9A227;
  --gold-200:#F0DA95;
  --blue-500:#2FA8FF;
  --blue-200:#A8DCFF;
  --orange-500:#FF7A33;
  --text-100:#E9EDF2;
  --text-400:#9AA6B4;
  --line-gold-deep:#6B5A1E;

  --shell-w:1240px;
  --shell-narrow:820px;
  --gutter:clamp(18px,4vw,56px);
  --head-h:76px;
  --radius-lg:22px;
  --radius-md:14px;
  --radius-sm:10px;

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

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;min-height:100vh}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{max-width:100%}
button{font:inherit;color:inherit;background:none;border:0}
table{border-collapse:collapse}

/* ---------- base ---------- */
body{
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.65;
  font-weight:400;
  color:var(--text-100);
  background-color:var(--ink-900);
  background-image:
    radial-gradient(1100px 540px at 84% -10%, rgba(47,168,255,.10), transparent 62%),
    radial-gradient(820px 460px at 2% 4%, rgba(201,162,39,.10), transparent 60%),
    repeating-linear-gradient(90deg, rgba(233,237,242,.022) 0 1px, transparent 1px calc(100% / 6));
  background-repeat:no-repeat,no-repeat,repeat;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;letter-spacing:-.02em;line-height:1.12;color:var(--text-100)}
h1{font-size:clamp(32px,5.4vw,64px)}
h2{font-size:clamp(24px,3.4vw,40px)}
h3{font-size:clamp(19px,2.2vw,26px)}
h4{font-size:17px}

a{color:var(--blue-500);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--blue-200)}

.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.06em;font-size:.82em}

:focus-visible{outline:2px solid var(--blue-500);outline-offset:3px;border-radius:6px}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:140;
  padding:10px 16px;border-radius:8px;
  background:var(--gold-500);color:var(--ink-900);
  font-weight:700;font-size:14px;
  transform:translateY(-180%);
  transition:transform .22s ease;
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0);color:var(--ink-900)}

/* ============================================================
   HEADER · 左右分置
   ============================================================ */
.site-head{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,rgba(8,10,13,.97),rgba(8,10,13,.86));
  border-bottom:1px solid rgba(107,90,30,.55);
  box-shadow:0 22px 44px -38px rgba(0,0,0,.95);
  backdrop-filter:blur(12px) saturate(1.15);
  transition:background .35s ease,border-color .35s ease;
}
.site-head[data-condensed]{
  background:linear-gradient(180deg,rgba(8,10,13,.99),rgba(8,10,13,.94));
  border-bottom-color:rgba(201,162,39,.5);
}

.head-beam{position:absolute;top:0;left:0;right:0;height:2px;overflow:hidden;pointer-events:none}
.head-beam::before{
  content:"";position:absolute;top:0;left:-34%;width:32%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(240,218,149,.9),rgba(47,168,255,.5),transparent);
  animation:beamSweep 6s linear infinite;
}
@keyframes beamSweep{
  0%{left:-34%}
  100%{left:104%}
}

.head-scan{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;z-index:3;
  background:linear-gradient(90deg,var(--gold-500),var(--blue-500));
  transform:scaleX(0);transform-origin:0 50%;
  pointer-events:none;
}

.head-inner{
  position:relative;
  max-width:var(--shell-w);
  margin:0 auto;
  padding:0 var(--gutter);
  min-height:var(--head-h);
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:clamp(16px,3vw,48px);
  transition:min-height .35s ease;
}
.site-head[data-condensed] .head-inner{min-height:58px}

.head-brand{display:flex;align-items:baseline;gap:12px;min-width:0}

.brand-mark{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--gold-500);
  font-family:var(--font-display);
  font-weight:900;font-size:20px;letter-spacing:-.01em;
  white-space:nowrap;
}
.brand-mark:hover{color:var(--gold-200)}
.brand-mark__glyph{
  display:inline-grid;place-items:center;
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(150deg,rgba(201,162,39,.32),rgba(201,162,39,.05));
  border:1px solid rgba(201,162,39,.6);
  color:var(--gold-200);
  font-family:var(--font-mono);font-size:15px;font-weight:700;
  letter-spacing:0;
}
.brand-mark__word{display:inline-flex;align-items:baseline;gap:4px}
.brand-mark__sub{font-size:.58em;letter-spacing:.24em;font-weight:600;color:var(--text-400)}

.brand-index{color:var(--text-400);font-size:12px;letter-spacing:.1em;white-space:nowrap}

.head-trail{
  justify-self:center;
  display:flex;align-items:baseline;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(4px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s;
}
.head-trail__num{
  color:var(--gold-200);font-size:12px;
  border:1px solid rgba(107,90,30,.85);border-radius:6px;
  padding:2px 7px;line-height:1.4;
}
.head-trail__label{color:var(--text-400);font-size:12px;letter-spacing:.12em}
.site-head[data-condensed] .head-trail{opacity:1;visibility:visible;transform:none}

.head-end{display:flex;align-items:center;gap:clamp(12px,1.9vw,26px);justify-self:end}

.head-update{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 12px;border-radius:999px;
  border:1px solid rgba(255,122,51,.36);
  background:rgba(255,122,51,.07);
  color:var(--text-400);
  transition:border-color .25s ease,color .25s ease,background .25s ease;
}
.head-update:hover{border-color:rgba(255,122,51,.75);color:var(--orange-500);background:rgba(255,122,51,.12)}
.head-update__dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--orange-500);
  box-shadow:0 0 0 3px rgba(255,122,51,.16);
  animation:pulseDot 3.4s ease-in-out infinite;
}
@keyframes pulseDot{
  0%,100%{box-shadow:0 0 0 3px rgba(255,122,51,.16)}
  50%{box-shadow:0 0 0 6px rgba(255,122,51,.05)}
}
.head-update__text{font-size:11.5px;letter-spacing:.2em}

.nav-list{display:flex;align-items:center;gap:clamp(14px,2.1vw,30px)}
.nav-link{
  position:relative;display:inline-block;
  padding:6px 2px;
  color:var(--text-400);
  font-size:15px;letter-spacing:.02em;
  transition:color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--gold-500);
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform .26s ease;
}
.nav-link:hover{color:var(--text-100)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--gold-200)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}

.nav-toggle{
  display:none;
  align-items:center;gap:9px;
  padding:9px 12px;border-radius:11px;
  border:1px solid var(--steel-700);
  background:rgba(30,37,48,.55);
  color:var(--text-100);
  cursor:pointer;
  transition:border-color .22s ease,color .22s ease;
}
.nav-toggle:hover{border-color:var(--gold-500);color:var(--gold-200)}
.nav-toggle__glyph{
  width:18px;height:12px;
  background-image:
    linear-gradient(currentColor,currentColor),
    linear-gradient(currentColor,currentColor);
  background-size:100% 2px,100% 2px;
  background-position:top left,bottom left;
  background-repeat:no-repeat;
  border-radius:2px;
}
.nav-toggle__text{font-size:13px;letter-spacing:.14em}

/* ============================================================
   FOOTER · 四段对照板
   ============================================================ */
.site-foot{
  position:relative;
  margin-top:clamp(64px,10vw,140px);
  padding:clamp(40px,6vw,72px) 0 0;
  background:linear-gradient(180deg,rgba(17,21,27,.62),rgba(8,10,13,1) 44%);
  border-top:1px solid rgba(107,90,30,.5);
}
.site-foot::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,162,39,.7),rgba(47,168,255,.35),transparent);
}

.foot-grid{
  max-width:var(--shell-w);
  margin:0 auto;
  padding:0 var(--gutter);
  display:grid;
  grid-template-columns:1.35fr 1fr 1.4fr 1.15fr;
  gap:clamp(20px,3vw,40px);
  align-items:start;
}
.foot-col{
  border-left:1px solid rgba(107,90,30,.42);
  padding-left:clamp(16px,2.4vw,32px);
  min-width:0;
}
.foot-col--brand{border-left:0;padding-left:0}

.brand-mark--foot{font-size:19px;margin-bottom:16px}

.foot-title{
  font-family:var(--font-mono);
  font-size:12px;font-weight:600;
  letter-spacing:.2em;
  color:var(--gold-500);
  margin-bottom:16px;
}
.foot-list li+li{margin-top:9px}
.foot-list a{color:var(--text-400);font-size:15px}
.foot-list a:hover{color:var(--blue-200)}

.foot-contact li+li{margin-top:10px}
.copy-btn{
  display:inline-flex;align-items:center;gap:10px;
  max-width:100%;
  padding:7px 12px;border-radius:9px;
  border:1px solid var(--steel-700);
  background:rgba(30,37,48,.45);
  color:var(--text-100);
  font-family:var(--font-mono);
  font-size:12.5px;letter-spacing:.03em;
  cursor:pointer;text-align:left;
  transition:border-color .22s ease,color .22s ease,background .22s ease;
}
.copy-btn:hover{border-color:var(--blue-500);color:var(--blue-200);background:rgba(47,168,255,.1)}
.copy-btn[data-copied]{border-color:var(--blue-500);color:var(--blue-200);background:rgba(47,168,255,.14)}
.copy-btn__value{overflow-wrap:anywhere}
.copy-btn__tag{
  font-family:var(--font-body);
  font-size:11px;letter-spacing:.14em;
  color:var(--text-400);
  border-left:1px solid var(--steel-700);
  padding-left:9px;
  flex:none;
}

.foot-line{color:var(--text-400);font-size:14px;line-height:1.75;margin-bottom:14px;max-width:36ch}
.foot-addr{color:var(--text-400);font-size:13px;line-height:1.75;margin-top:16px;max-width:34ch}
.foot-note{color:var(--text-400);font-size:13px;line-height:1.75;margin-top:10px;max-width:34ch}
.foot-icp{margin-top:14px;font-size:12px;color:var(--text-400)}
.foot-stamp{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 13px;border-radius:999px;
  border:1px solid rgba(255,122,51,.36);
  background:rgba(255,122,51,.07);
  color:var(--orange-500);
  font-size:12px;letter-spacing:.1em;
}
.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--blue-500);flex:none}
.dot--orange{background:var(--orange-500)}

.foot-base{
  max-width:var(--shell-w);
  margin:clamp(32px,5vw,56px) auto 0;
  padding:18px var(--gutter) 26px;
  display:flex;flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  border-top:1px solid rgba(107,90,30,.32);
  color:var(--text-400);
}
.foot-base p{font-size:12px}

/* ---------- 复制提示 / 返回顶部 ---------- */
.copy-toast{
  position:fixed;left:50%;bottom:clamp(16px,4vw,42px);z-index:110;
  max-width:min(90vw,520px);
  padding:11px 18px;border-radius:10px;
  border:1px solid rgba(47,168,255,.5);
  background:rgba(8,10,13,.96);
  color:var(--blue-200);
  font-family:var(--font-mono);font-size:13px;
  text-align:center;
  opacity:0;visibility:hidden;pointer-events:none;
  transform:translate(-50%,14px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s;
}
.copy-toast[data-show]{opacity:1;visibility:visible;transform:translate(-50%,0)}

.to-top{
  position:fixed;right:clamp(14px,2vw,28px);bottom:clamp(14px,2vw,28px);z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 15px;border-radius:999px;
  border:1px solid rgba(47,168,255,.45);
  background:rgba(17,21,27,.92);
  color:var(--blue-200);
  cursor:pointer;
  backdrop-filter:blur(8px);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s,border-color .22s ease,box-shadow .25s ease;
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:none}
.to-top:hover{border-color:var(--blue-500);color:#fff;box-shadow:0 0 0 4px rgba(47,168,255,.14)}
.to-top__arrow{font-size:14px;line-height:1}
.to-top__text{font-size:11px;letter-spacing:.18em}

/* ============================================================
   通用组件
   ============================================================ */
.shell{width:100%;max-width:var(--shell-w);margin-inline:auto;padding-inline:var(--gutter)}
.shell--narrow{max-width:var(--shell-narrow)}

.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 22px;border-radius:12px;
  border:1px solid transparent;
  font-family:var(--font-body);font-weight:700;font-size:15px;letter-spacing:.02em;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .28s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.btn--gold{
  background:linear-gradient(140deg,var(--gold-500),#9d7c14);
  color:#0b0d10;
  box-shadow:0 16px 34px -20px rgba(201,162,39,.9);
}
.btn--gold:hover{color:#0b0d10;background:linear-gradient(140deg,var(--gold-200),var(--gold-500));transform:translateY(-2px)}
.btn--blue{
  background:rgba(47,168,255,.12);
  border-color:rgba(47,168,255,.55);
  color:var(--blue-200);
}
.btn--blue:hover{background:rgba(47,168,255,.22);color:#fff;transform:translateY(-2px)}
.btn--ghost{background:transparent;border-color:var(--steel-700);color:var(--text-100)}
.btn--ghost:hover{border-color:var(--gold-500);color:var(--gold-200)}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.09em;
  color:var(--text-400);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--text-400)}
.breadcrumb a:hover{color:var(--blue-200)}
.breadcrumb__sep{color:var(--line-gold-deep)}
.breadcrumb__current{color:var(--gold-500)}

.panel{
  position:relative;
  padding:clamp(20px,3.2vw,38px);
  border:1px solid var(--steel-700);
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(17,21,27,.95),rgba(8,10,13,.92));
  overflow:hidden;
}
.panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,162,39,.55),transparent);
}
.panel--raised{
  border-color:rgba(107,90,30,.5);
  background:linear-gradient(160deg,rgba(30,37,48,.92),rgba(17,21,27,.95));
  box-shadow:0 46px 90px -66px rgba(0,0,0,1);
}
.panel--offset{transform:translateY(clamp(8px,1.6vw,24px))}
.panel__head{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;
  gap:12px;
  margin-bottom:16px;padding-bottom:14px;
  border-bottom:1px solid var(--steel-700);
}
.panel__title{font-size:clamp(18px,2vw,24px)}

.stack{display:grid;gap:clamp(14px,2vw,24px)}
.stack--offset>*:nth-child(even){margin-left:clamp(0px,3vw,64px)}
.stack--offset>*:nth-child(odd){margin-right:clamp(0px,3vw,64px)}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;
  color:var(--gold-500);
}
.sec-num{
  display:inline-grid;place-items:center;
  min-width:34px;height:24px;padding:0 8px;
  border:1px solid rgba(107,90,30,.8);border-radius:6px;
  font-family:var(--font-mono);font-size:12px;font-variant-numeric:tabular-nums;
  color:var(--gold-200);
}
.rule-gold{
  height:1px;border:0;
  margin:clamp(24px,4vw,48px) 0;
  background:linear-gradient(90deg,var(--line-gold-deep),transparent);
}

.grid-3{display:grid;gap:clamp(14px,2vw,26px);grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-split{
  display:grid;gap:clamp(18px,3vw,44px);
  grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);
  align-items:start;
}

/* 图片容器（页面阶段放入设备对照图与界面局部特写） */
.media-frame{
  position:relative;display:block;width:100%;
  aspect-ratio:16/10;
  border:1px solid var(--steel-700);
  border-radius:var(--radius-md);
  overflow:hidden;
  background:
    radial-gradient(120% 90% at 14% 0%,rgba(47,168,255,.20),transparent 55%),
    radial-gradient(100% 84% at 88% 100%,rgba(201,162,39,.22),transparent 60%),
    linear-gradient(160deg,#151b23,#0a0d11);
}
.media-frame img,.media-frame video{display:block;width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(240,218,149,.08),inset 0 -46px 60px -44px rgba(0,0,0,.95);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--screen{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame__cap{
  position:absolute;left:0;right:0;bottom:0;z-index:1;
  padding:14px 16px;
  background:linear-gradient(180deg,transparent,rgba(8,10,13,.94));
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;
  color:var(--text-400);
}

/* 章节侧栏目录 */
.toc{position:sticky;top:calc(var(--head-h) + 24px)}
.toc__list{display:grid;gap:9px}
.toc a{
  display:block;
  padding:4px 0 4px 16px;
  margin-left:-1px;
  border-left:2px solid transparent;
  color:var(--text-400);font-size:14px;
  transition:color .22s ease,border-color .22s ease;
}
.toc a:hover{color:var(--text-100)}
.toc a.is-current{color:var(--gold-200);border-left-color:var(--gold-500)}

[data-section]{scroll-margin-top:calc(var(--head-h) + 20px)}

/* ---------- 工具类 ---------- */
.u-muted{color:var(--text-400)}
.u-gold{color:var(--gold-500)}
.u-blue{color:var(--blue-500)}
.u-orange{color:var(--orange-500)}

/* ---------- 入场动效（仅在支持动效时启用） ---------- */
.has-js [data-reveal]{
  opacity:0;
  transform:translateY(20px);
  transition:opacity .7s ease,transform .7s cubic-bezier(.22,.61,.36,1);
  transition-delay:var(--reveal-delay,0ms);
}
.has-js [data-reveal].is-in{opacity:1;transform:none}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1080px){
  .head-trail{display:none}
}

@media (max-width:1024px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,36px)}
  .foot-col{border-left:0;padding-left:0}
  .foot-col+.foot-col{border-top:1px solid rgba(107,90,30,.3);padding-top:24px}
  .grid-split{grid-template-columns:1fr}
  .toc{position:static}
}

@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .brand-index{display:none}
  .head-inner{
    grid-template-columns:auto auto;
    justify-content:space-between;
    align-items:center;
    gap:12px;
    padding-block:12px;
    min-height:auto;
  }
  .site-head[data-condensed] .head-inner{min-height:auto}
  .head-end{gap:10px}
  .head-update{padding:6px 10px}
  .head-update__text{display:none}

  .head-nav{
    position:absolute;
    left:0;right:0;top:100%;
    max-height:0;
    overflow:hidden;
    background:linear-gradient(180deg,rgba(17,21,27,.99),rgba(8,10,13,.99));
    border-bottom:1px solid rgba(107,90,30,.55);
    transition:max-height .4s ease;
  }
  .head-nav[data-open]{max-height:min(74vh,560px);overflow-y:auto}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;padding:6px 0 10px}
  .nav-link{
    display:block;
    padding:15px var(--gutter);
    font-size:16px;
    border-bottom:1px solid rgba(30,37,48,.85);
  }
  .nav-link::after{
    left:var(--gutter);right:auto;bottom:50%;
    width:20px;
    transform:translateY(50%) scaleX(0);
  }
  .nav-link:hover::after,
  .nav-link[aria-current="page"]::after{transform:translateY(50%) scaleX(1)}
  .nav-link[aria-current="page"]{background:rgba(201,162,39,.06)}

  .grid-3{grid-template-columns:1fr}
  .stack--offset>*:nth-child(even){margin-left:0}
  .stack--offset>*:nth-child(odd){margin-right:0}
}

@media (max-width:600px){
  body{font-size:16px}
  .foot-grid{grid-template-columns:1fr}
  .foot-col+.foot-col{padding-top:22px}
  .copy-btn{width:100%;justify-content:space-between}
  .foot-base{flex-direction:column;align-items:flex-start}
  .to-top{padding:9px 13px}
}

/* ============================================================
   动效偏好
   ============================================================ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .head-beam::before{display:none}
  .head-update__dot{animation:none}
  .has-js [data-reveal]{opacity:1;transform:none}
}