/* ============================================================
   1号站游艺 · 通道控制台 —— 共享站点样式 /assets/site.css
   ============================================================ */

:root{
  --ink:#081426;
  --ink-2:#10243B;
  --ink-3:#0B1A2D;
  --paper:#F4EBDD;
  --amber:#E8AE47;
  --amber-soft:#FFD486;
  --cyan:#39E6D6;
  --teal:#087A75;
  --mist:#9FB3C8;
  --berry:#F05D6B;
  --white:#FFFFFF;

  --rail-w:104px;
  --strip-h:52px;
  --shell-max:1240px;

  --line:rgba(159,179,200,.18);
  --line-strong:rgba(232,174,71,.26);
  --radius-l:26px;
  --radius-m:16px;
  --radius-s:10px;

  --font-display:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Courier New",monospace;
  --font-legal:"Songti SC","Source Han Serif SC","Noto Serif SC",serif;

  --ease:cubic-bezier(.22,.7,.24,1);
}

/* ---------------- 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,dl,dd,figure,blockquote,fieldset{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg,video{max-width:100%;}
button{font:inherit;color:inherit;}
a{color:inherit;}
table{border-collapse:collapse;}

/* ---------------- base ---------------- */
body{
  min-height:100vh;
  padding-top:64px;
  padding-left:0;
  background-color:var(--ink);
  background-image:
    radial-gradient(920px 640px at 82% -10%, rgba(57,230,214,.10), transparent 62%),
    radial-gradient(780px 560px at 4% 108%, rgba(232,174,71,.12), transparent 60%),
    linear-gradient(rgba(159,179,200,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(159,179,200,.055) 1px, transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
  background-attachment:fixed;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
main{display:block;}
#main-content:focus{outline:none;}
[id]{scroll-margin-top:84px;}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.08;
  letter-spacing:-.02em;
  color:var(--white);
}
h3,h4{letter-spacing:-.01em;line-height:1.2;}

::selection{background:rgba(232,174,71,.85);color:#081426;}

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

.skip-link{
  position:fixed;
  top:10px;
  left:10px;
  z-index:200;
  transform:translateY(-180%);
  padding:10px 16px;
  border-radius:8px;
  background:var(--paper);
  color:#081426;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-decoration:none;
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0);}

/* ---------------- 文字原语 ---------------- */
.h-display{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(56px,9vw,112px);
  line-height:.92;
  letter-spacing:-.035em;
  color:var(--white);
}
.mono{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{
  content:"";
  width:26px;
  height:1px;
  background:linear-gradient(90deg,var(--amber),transparent);
}
.chapter-num{
  display:block;
  font-family:var(--font-mono);
  font-size:clamp(36px,6vw,74px);
  line-height:.9;
  letter-spacing:.02em;
  color:transparent;
  -webkit-text-stroke:1px rgba(232,174,71,.55);
}
@supports not (-webkit-text-stroke:1px #000){
  .chapter-num{color:rgba(232,174,71,.42);}
}
.lead{
  font-size:clamp(17px,1.9vw,20px);
  line-height:1.8;
  color:rgba(244,235,221,.86);
}
.muted{color:var(--mist);}

/* ---------------- 布局工具 ---------------- */
.page-wrap{
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,56px);
}
.section{padding-block:clamp(40px,6vw,88px);}
.section-head{
  display:flex;
  flex-direction:column;
  gap:12px;
  margin-bottom:clamp(20px,3vw,36px);
}
.section-head__title{
  font-size:clamp(28px,4vw,46px);
  letter-spacing:-.025em;
}
.section-head__note{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mist);
}
.grid{display:grid;gap:clamp(16px,2.4vw,32px);}
.grid--7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr);}
.grid--8-4{grid-template-columns:minmax(0,8fr) minmax(0,4fr);}
.grid--halves{grid-template-columns:repeat(2,minmax(0,1fr));}
.stack{display:flex;flex-direction:column;gap:clamp(12px,1.8vw,22px);}
.stack--tight{display:flex;flex-direction:column;gap:10px;}

/* ---------------- 面板 ---------------- */
.panel{
  position:relative;
  padding:clamp(20px,2.6vw,32px);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  background:linear-gradient(155deg, rgba(20,44,70,.94), rgba(9,22,39,.94));
  box-shadow:0 30px 70px -60px rgba(0,0,0,.95);
  overflow:hidden;
}
.panel::before{
  content:"";
  position:absolute;
  top:0;
  left:clamp(20px,2.6vw,32px);
  width:64px;
  height:2px;
  background:linear-gradient(90deg,var(--amber),rgba(232,174,71,0));
}
.panel--paper{
  background:linear-gradient(180deg,#FBF5EA,#F1E6D4);
  border-color:rgba(8,20,38,.14);
  color:#0A1626;
}
.panel--paper::before{background:linear-gradient(90deg,var(--teal),rgba(8,122,117,0));}
.panel--paper h2,.panel--paper h3,.panel--paper h4{color:#081426;}
.panel--paper .muted{color:#54677D;}
.panel--paper a{color:var(--teal);}
.panel--paper .eyebrow{color:var(--teal);}

/* ---------------- 按钮 ---------------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:14px 22px;
  border:1px solid transparent;
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  text-decoration:none;
  cursor:pointer;
  transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.btn:hover{transform:translateY(-2px);}
.btn--primary{
  background:linear-gradient(135deg,var(--amber-soft),var(--amber));
  color:#0A1626;
  box-shadow:0 18px 40px -22px rgba(232,174,71,.95);
}
.btn--primary:hover{box-shadow:0 22px 46px -20px rgba(232,174,71,1);}
.btn--ghost{
  border-color:rgba(57,230,214,.45);
  background:rgba(57,230,214,.07);
  color:var(--cyan);
}
.btn--ghost:hover{background:rgba(57,230,214,.14);}
.btn--quiet{
  border-color:rgba(244,235,221,.24);
  background:transparent;
  color:var(--paper);
}
.btn--quiet:hover{border-color:rgba(232,174,71,.6);color:var(--amber-soft);}

/* ---------------- 芯片 ---------------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  padding:9px 14px;
  border:1px solid rgba(159,179,200,.28);
  border-radius:999px;
  background:rgba(16,36,59,.62);
  color:var(--mist);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{border-color:rgba(232,174,71,.55);color:var(--amber-soft);}
.chip.is-active,
.chip[aria-pressed="true"]{
  background:rgba(232,174,71,.15);
  border-color:rgba(232,174,71,.68);
  color:var(--amber-soft);
}

/* ---------------- 面包屑 ---------------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding-block:18px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mist);
}
.breadcrumb__link{
  color:var(--mist);
  text-decoration:none;
  border-bottom:1px solid transparent;
}
.breadcrumb__link:hover{color:var(--amber-soft);border-bottom-color:rgba(232,174,71,.5);}
.breadcrumb__sep{color:rgba(159,179,200,.5);}
.breadcrumb__current{color:var(--paper);}

/* ---------------- 章节导航 ---------------- */
.chapter-link{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding-left:12px;
  border-left:2px solid transparent;
  color:var(--mist);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  text-decoration:none;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.chapter-link:hover{color:var(--paper);}
.chapter-link.is-active{color:var(--amber-soft);border-left-color:var(--amber);}

/* ---------------- 图片容器基础规则 ---------------- */
.img-frame{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  background:
    radial-gradient(120% 120% at 18% 0%, rgba(57,230,214,.18), transparent 55%),
    radial-gradient(90% 90% at 86% 100%, rgba(232,174,71,.22), transparent 60%),
    linear-gradient(150deg,#0D2036,#081426);
}
.img-frame img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.img-frame__caption{
  position:absolute;
  inset:auto 0 0 0;
  padding:10px 14px;
  background:linear-gradient(0deg, rgba(6,16,32,.92), transparent);
  color:var(--mist);
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.18em;
  text-transform:uppercase;
}
.img-frame--wide{aspect-ratio:21/9;}
.img-frame--tall{aspect-ratio:3/4;}
.img-frame--square{aspect-ratio:1/1;}

/* ---------------- 阅读进度 ---------------- */
.read-progress{
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:2px;
  z-index:95;
  pointer-events:none;
  background:rgba(159,179,200,.12);
}
.read-progress__bar{
  display:block;
  height:100%;
  width:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--amber) 68%,var(--amber-soft));
}

/* ---------------- 显现 ---------------- */
html.reveal-ready [data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
html.reveal-ready [data-reveal].is-visible{
  opacity:1;
  transform:none;
}

/* ============================================================
   头部：品牌轨道 + 状态条
   ============================================================ */
.console-head{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  width:var(--rail-w);
  z-index:80;
  display:flex;
  flex-direction:column;
  background:linear-gradient(180deg,#0C1D31 0%,#081426 55%,#050E1C 100%);
  border-right:1px solid var(--line-strong);
}
.console-head::after{
  content:"";
  position:absolute;
  top:0;
  right:-1px;
  width:1px;
  height:140px;
  background:linear-gradient(180deg,var(--amber),rgba(232,174,71,0));
}

.rail{
  display:flex;
  flex-direction:column;
  flex:1 1 auto;
  min-height:0;
  gap:20px;
  padding:20px 12px 18px;
}

.rail-brand{
  display:flex;
  flex-direction:column;
  gap:6px;
  text-decoration:none;
  color:var(--paper);
}
.rail-brand__mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border:1px solid rgba(232,174,71,.5);
  border-radius:var(--radius-s);
  background:radial-gradient(120% 120% at 30% 20%, rgba(232,174,71,.22), transparent 70%);
  color:var(--amber);
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.06em;
}
.rail-brand__name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:13px;
  line-height:1.25;
  letter-spacing:.06em;
}
.rail-brand__sub{
  font-family:var(--font-mono);
  font-size:9px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mist);
}
.rail-brand:hover .rail-brand__mark{border-color:var(--amber-soft);color:var(--amber-soft);}
.rail-brand:hover .rail-brand__name{color:var(--white);}

.rail-nav{
  flex:1 1 auto;
  min-height:0;
  display:flex;
  flex-direction:column;
  gap:8px;
  padding-top:14px;
  border-top:1px solid var(--line);
  overflow-y:auto;
  scrollbar-width:thin;
}
.rail-nav__head{
  display:flex;
  justify-content:space-between;
  gap:6px;
  font-family:var(--font-mono);
  font-size:9px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:rgba(159,179,200,.72);
}
.rail-nav__list{display:flex;flex-direction:column;gap:3px;}
.rail-nav__link{
  position:relative;
  display:grid;
  grid-template-columns:20px minmax(0,1fr);
  align-items:center;
  gap:6px;
  padding:9px 8px;
  border:1px solid transparent;
  border-radius:8px;
  color:var(--paper);
  font-size:12.5px;
  line-height:1.3;
  text-decoration:none;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.rail-nav__num{
  font-family:var(--font-mono);
  font-size:9.5px;
  letter-spacing:.06em;
  color:rgba(159,179,200,.85);
}
.rail-nav__label{
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  letter-spacing:.02em;
}
.rail-nav__link:hover{
  background:rgba(232,174,71,.1);
  border-color:rgba(232,174,71,.35);
}
.rail-nav__link:hover .rail-nav__num{color:var(--amber-soft);}
.rail-nav__link[aria-current="page"]{
  background:linear-gradient(100deg,rgba(232,174,71,.96),rgba(255,212,134,.8));
  border-color:rgba(255,212,134,.9);
  color:#081426;
  font-weight:600;
  box-shadow:0 0 0 1px rgba(232,174,71,.22),0 14px 28px -20px rgba(232,174,71,.95);
}
.rail-nav__link[aria-current="page"] .rail-nav__num{color:rgba(8,20,38,.72);}
.rail-nav__note{
  margin-top:12px;
  font-family:var(--font-mono);
  font-size:9px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:rgba(159,179,200,.7);
}

.rail-foot{
  display:flex;
  align-items:center;
  gap:6px;
  padding-top:12px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:9px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--mist);
}
.rail-foot__dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 3px rgba(57,230,214,.16);
  animation:railPulse 2.6s ease-in-out infinite;
}
.rail-foot__text{line-height:1;}
@keyframes railPulse{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.45;transform:scale(.82);}
}

.head-strip{
  position:fixed;
  top:0;
  left:var(--rail-w);
  right:0;
  height:var(--strip-h);
  z-index:70;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:0 clamp(16px,3vw,40px);
  background:rgba(8,20,38,.84);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.head-strip__meta{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--mist);
}
.head-strip__tag{
  padding:2px 6px;
  border:1px solid rgba(57,230,214,.42);
  border-radius:4px;
  color:var(--cyan);
  font-size:9.5px;
  letter-spacing:.14em;
}
.head-strip__divider{
  width:22px;
  height:1px;
  background:rgba(159,179,200,.4);
}
.head-strip__label{color:rgba(159,179,200,.82);letter-spacing:.18em;}
.head-strip__cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding-bottom:2px;
  border-bottom:1px solid rgba(232,174,71,.45);
  color:var(--amber-soft);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  text-decoration:none;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.head-strip__cta:hover{color:var(--white);border-bottom-color:var(--amber-soft);}

.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  padding:9px 14px;
  border:1px solid rgba(232,174,71,.4);
  border-radius:999px;
  background:rgba(232,174,71,.08);
  color:var(--amber-soft);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle__bars{
  display:inline-flex;
  flex-direction:column;
  gap:4px;
  width:16px;
}
.nav-toggle__bars span{
  display:block;
  height:1.5px;
  border-radius:2px;
  background:currentColor;
  transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.nav-toggle__text{line-height:1;}
.nav-toggle[aria-expanded="true"]{
  background:rgba(232,174,71,.94);
  border-color:var(--amber-soft);
  color:#081426;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:first-child{transform:translateY(2.75px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:last-child{transform:translateY(-2.75px) rotate(-45deg);}

/* ============================================================
   页脚：控制台底座
   ============================================================ */
.console-foot{
  position:relative;
  margin-top:clamp(56px,8vw,120px);
  border-top:1px solid var(--line-strong);
  background:linear-gradient(180deg, rgba(16,36,59,.92), #061020 72%);
  overflow:hidden;
}
.console-foot::before{
  content:"";
  position:absolute;
  top:-140px;
  left:-80px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(232,174,71,.16), transparent 66%);
  pointer-events:none;
}
.console-foot::after{
  content:"";
  position:absolute;
  right:-120px;
  bottom:-160px;
  width:460px;
  height:460px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(57,230,214,.14), transparent 68%);
  pointer-events:none;
}
.foot-frame{
  position:relative;
  z-index:1;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:clamp(40px,6vw,80px) clamp(20px,4vw,48px) clamp(28px,4vw,44px);
  display:grid;
  grid-template-columns:1.5fr .7fr .7fr 1.1fr;
  gap:clamp(24px,3vw,48px);
}

.foot-brand{display:flex;flex-direction:column;gap:12px;align-items:flex-start;}
.foot-brand__mono{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan);
}
.foot-brand__name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(28px,3.4vw,44px);
  line-height:1;
  letter-spacing:-.02em;
  color:var(--white);
}
.foot-brand__desc{
  max-width:30ch;
  font-size:14px;
  line-height:1.85;
  color:var(--mist);
}
.foot-brand__icp{
  display:inline-block;
  padding:4px 10px;
  border:1px dashed rgba(159,179,200,.4);
  border-radius:6px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:rgba(244,235,221,.66);
}

.foot-col{display:flex;flex-direction:column;}
.foot-col__title{
  display:flex;
  align-items:center;
  gap:8px;
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
  font-family:var(--font-body);
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--paper);
}
.foot-col__num{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.1em;
  color:var(--amber);
}
.foot-list{display:grid;gap:8px;margin-top:14px;}
.foot-link{
  display:inline-block;
  color:var(--mist);
  font-size:14px;
  text-decoration:none;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.foot-link:hover{color:var(--amber-soft);transform:translateX(3px);}

.foot-contact{display:grid;gap:10px;margin-top:14px;}
.foot-contact__row{
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:10px;
  align-items:baseline;
}
.foot-contact dt{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:rgba(159,179,200,.8);
}
.foot-contact dd{
  font-size:14px;
  line-height:1.7;
  color:var(--paper);
  word-break:break-word;
}

.copy-btn{
  align-self:flex-start;
  margin-top:16px;
  padding:8px 14px;
  border:1px solid rgba(57,230,214,.42);
  border-radius:8px;
  background:rgba(57,230,214,.06);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  cursor:pointer;
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.copy-btn:hover{background:rgba(57,230,214,.14);border-color:rgba(57,230,214,.7);color:#BFFFF8;}
.copy-status{
  display:block;
  min-height:18px;
  margin-top:8px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.12em;
  color:var(--cyan);
}

.foot-base{
  position:relative;
  z-index:1;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:18px clamp(20px,4vw,48px) 26px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px 24px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:rgba(159,179,200,.78);
}
.foot-base__copy{margin:0;}
.foot-base__meta{display:flex;flex-wrap:wrap;gap:8px;margin:0;}
.foot-base__sep{color:rgba(159,179,200,.4);}

/* ============================================================
   响应式
   ============================================================ */
@media (min-width:1000px){
  body{
    padding-left:var(--rail-w);
    padding-top:var(--strip-h);
  }
  [id]{scroll-margin-top:calc(var(--strip-h) + 18px);}
}

@media (max-width:1080px){
  .foot-frame{grid-template-columns:1fr 1fr;}
  .foot-brand{grid-column:1 / -1;}
}

@media (max-width:999px){
  body{
    padding-left:0;
    padding-top:64px;
  }
  .console-head{
    right:0;
    bottom:auto;
    width:auto;
    height:64px;
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    padding:0 14px 0 16px;
    border-right:0;
    border-bottom:1px solid var(--line-strong);
    background:rgba(8,20,38,.95);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
  }
  .console-head::after{
    top:auto;
    bottom:-1px;
    right:auto;
    left:0;
    width:120px;
    height:1px;
    background:linear-gradient(90deg,var(--amber),rgba(232,174,71,0));
  }
  .rail{
    flex-direction:row;
    align-items:center;
    gap:0;
    flex:1 1 auto;
    min-height:0;
    padding:0;
    overflow:visible;
  }
  .rail-brand{flex-direction:row;align-items:center;gap:10px;}
  .rail-brand__mark{width:32px;height:32px;border-radius:9px;font-size:11px;}
  .rail-brand__name{font-size:13px;white-space:nowrap;}
  .rail-brand__sub{display:none;}
  .rail-foot{display:none;}

  .rail-nav{
    position:fixed;
    top:64px;
    right:0;
    bottom:0;
    left:0;
    z-index:76;
    display:flex;
    flex-direction:column;
    gap:0;
    padding:22px 18px 40px;
    border-top:0;
    overflow-y:auto;
    background:linear-gradient(165deg,#0D2036,#081426 62%,#050E1C);
    opacity:0;
    visibility:hidden;
    transform:translateY(-12px);
    transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s var(--ease);
  }
  .rail-nav[data-open="true"]{
    opacity:1;
    visibility:visible;
    transform:none;
  }
  .rail-nav__head{
    font-size:10px;
    letter-spacing:.26em;
    padding-bottom:14px;
    border-bottom:1px solid var(--line);
  }
  .rail-nav__list{gap:0;margin-top:8px;}
  .rail-nav__link{
    grid-template-columns:32px minmax(0,1fr);
    padding:16px 6px;
    border:0;
    border-bottom:1px solid rgba(159,179,200,.16);
    border-radius:0;
    font-size:16px;
  }
  .rail-nav__num{font-size:11px;color:var(--amber);}
  .rail-nav__link[aria-current="page"]{
    background:linear-gradient(90deg,rgba(232,174,71,.18),transparent);
    border-bottom-color:rgba(232,174,71,.55);
    color:var(--amber-soft);
    box-shadow:none;
  }
  .rail-nav__link[aria-current="page"] .rail-nav__num{color:var(--amber-soft);}
  .rail-nav__note{margin-top:18px;font-size:10px;}

  .head-strip{display:none;}
  .nav-toggle{display:inline-flex;flex:0 0 auto;}
  .read-progress{top:0;}

  html.nav-open{overflow:hidden;}
  html.nav-open body{overflow:hidden;}

  .grid--7-5,
  .grid--8-4,
  .grid--halves{grid-template-columns:minmax(0,1fr);}
}

@media (max-width:600px){
  .foot-frame{grid-template-columns:1fr;}
  .foot-brand__desc{max-width:none;}
  .foot-base{flex-direction:column;align-items:flex-start;}
  .foot-contact__row{grid-template-columns:40px minmax(0,1fr);}
}

/* ---------------- 动效降级 ---------------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .btn,.chip,.foot-link,.rail-nav__link,.copy-btn,.nav-toggle,.skip-link{transition:none;}
  .btn:hover,.foot-link:hover{transform:none;}
  .rail-foot__dot{animation:none;}
  html.reveal-ready [data-reveal]{
    opacity:1;
    transform:none;
    transition:none;
  }
  .rail-nav{transition:none;}
}