/* ============================================================
   神话方方 · 档案室  /assets/site.css
   共享层：tokens · reset · 中文排版 · 顶栏 · 页脚 · 基础组件
   ============================================================ */

/* ---------- 1. tokens ---------- */
:root{
  --ink:#0B1B2B;
  --ink-deep:#071018;
  --gold:#B08A3E;
  --gold-bright:#D8B25E;
  --cinnabar:#C4493A;
  --jade:#3E7C6B;
  --paper:#EDE4D3;
  --paper-white:#F5F2EA;
  --gray:#7C8B99;
  --line:#1E3243;

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

  --fs-12:0.75rem;
  --fs-14:0.875rem;
  --fs-16:1rem;
  --fs-18:1.125rem;
  --fs-24:1.5rem;
  --fs-32:2rem;
  --fs-48:3rem;
  --fs-72:4.5rem;

  --header-h:72px;
  --rail-w:88px;
  --wrap:1320px;
  --pad:clamp(16px,3vw,32px);
  --gap:clamp(16px,2.2vw,32px);
  --sp-section:clamp(56px,9vw,132px);
  --radius:2px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
@media (max-width:1119px){
  :root{ --header-h:64px; --rail-w:0px; }
}

/* ---------- 2. reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 20px);
}
body{
  margin:0;
  min-height:100vh;
  color:var(--paper);
  background-color:var(--ink);
  background-image:
    repeating-linear-gradient(to right, rgba(30,50,67,.40) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(to bottom, rgba(30,50,67,.26) 0 1px, transparent 1px 96px),
    radial-gradient(1100px 620px at 84% -10%, rgba(176,138,62,.13), transparent 62%),
    linear-gradient(180deg,#0B1B2B 0%,#0B1B2B 55%,#071018 100%);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video,canvas{ display:block; max-width:100%; }
img{ height:auto; }
button,input,select,textarea{ font:inherit; color:inherit; }
ul,ol{ margin:0; padding:0; }
hr{ border:0; }
::selection{ background:var(--cinnabar); color:var(--paper-white); }

:focus-visible{
  outline:2px solid var(--gold-bright);
  outline-offset:2px;
  box-shadow:0 0 0 4px rgba(62,124,107,.38);
}

/* ---------- 3. 中文排版 ---------- */
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
}
h1,h2,h3,h4,h5{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.28;
  letter-spacing:.02em;
  color:var(--paper);
  margin:0 0 .6em;
}
h1{ font-size:clamp(2rem,5.4vw,3.6rem); font-weight:900; letter-spacing:.01em; }
h2{ font-size:clamp(1.5rem,3.2vw,2.25rem); }
h3{ font-size:clamp(1.125rem,2vw,1.5rem); }
h4{ font-size:1.0625rem; font-family:var(--font-body); font-weight:600; letter-spacing:.06em; }
p{ margin:0 0 1.1em; }
p:last-child{ margin-bottom:0; }
a{ color:var(--gold-bright); text-decoration:none; }
a:hover{ color:var(--paper-white); }
.mono{ font-family:var(--font-mono); letter-spacing:.06em; }

/* ---------- 4. skip link ---------- */
.skip-link{
  position:fixed;
  top:-80px;
  left:12px;
  z-index:200;
  padding:10px 18px;
  background:var(--gold-bright);
  color:var(--ink-deep);
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.08em;
  border-radius:var(--radius);
  transition:top .22s var(--ease);
}
.skip-link:focus{ top:12px; color:var(--ink-deep); }

/* ---------- 5. 顶栏 ---------- */
.site-header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:80;
  background:linear-gradient(180deg, rgba(7,16,24,.94) 0%, rgba(7,16,24,.55) 58%, rgba(7,16,24,0) 100%);
  transition:background .3s var(--ease), border-color .3s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-solid{
  background:rgba(7,16,24,.97);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:clamp(12px,2vw,32px);
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  min-height:var(--header-h);
  padding:10px var(--pad);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--paper);
  flex:0 0 auto;
}
.brand:hover{ color:var(--paper); }
.brand__seal{
  position:relative;
  width:38px; height:38px;
  display:grid; place-items:center;
  border:1px solid var(--gold);
  color:var(--gold-bright);
  font-family:var(--font-display);
  font-size:20px; font-weight:700;
  line-height:1;
  border-radius:var(--radius);
}
.brand__seal::after{
  content:"";
  position:absolute; inset:4px;
  border:1px solid rgba(176,138,62,.35);
}
.brand__text{ display:flex; flex-direction:column; line-height:1.25; }
.brand__name{
  font-family:var(--font-display);
  font-size:18px; font-weight:800;
  letter-spacing:.14em;
  color:var(--paper);
}
.brand__sub{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.18em;
  color:var(--gray);
}
.brand--footer .brand__seal{ width:34px; height:34px; font-size:18px; }
.brand--footer .brand__name{ font-size:17px; }

.site-nav{ margin-left:auto; }
.site-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.7vw,26px);
  list-style:none;
}
.site-nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:9px 2px;
  font-size:14px;
  letter-spacing:.06em;
  color:rgba(237,228,211,.86);
  transition:color .2s var(--ease);
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:0;
  height:1px;
  background:var(--gold);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s var(--ease), background .2s linear;
}
.site-nav__link:hover{ color:var(--gold-bright); }
.site-nav__link:hover::after{ transform:scaleX(1); }
.site-nav__link[aria-current="page"]{ color:var(--gold-bright); }
.site-nav__link[aria-current="page"]::after{ transform:scaleX(1); background:var(--cinnabar); }
.site-nav__idx{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.04em;
  color:var(--gray);
}
.site-nav__link[aria-current="page"] .site-nav__idx{ color:var(--cinnabar); }
.site-nav__foot{ display:none; }

.header-meta{
  display:none;
  margin:0;
  font-size:11px;
  letter-spacing:.16em;
  color:var(--gray);
  white-space:nowrap;
}
@media (min-width:1120px){
  .header-meta{ display:block; }
}

.nav-toggle{
  display:none;
  margin-left:auto;
  align-items:center;
  gap:10px;
  padding:9px 14px;
  background:transparent;
  border:1px solid var(--line);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  border-radius:var(--radius);
  cursor:pointer;
  position:relative;
  z-index:90;
  transition:border-color .2s var(--ease), color .2s var(--ease);
}
.nav-toggle:hover{ border-color:var(--gold); color:var(--gold-bright); }
.nav-toggle__bars{ display:inline-flex; flex-direction:column; gap:3px; width:16px; }
.nav-toggle__bars span{
  display:block; height:1px; width:100%;
  background:currentColor;
  transition:transform .26s var(--ease), opacity .2s linear;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){ transform:translateY(4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){ transform:translateY(-4px) rotate(-45deg); }

.header-progress{
  position:absolute;
  left:0; right:0; bottom:0;
  height:2px;
  background:var(--line);
}
.header-progress__bar{
  display:block;
  height:100%;
  width:100%;
  background:linear-gradient(90deg, var(--gold) 0%, var(--gold-bright) 62%, var(--cinnabar) 100%);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .12s linear;
}

/* 顶栏移动态：右侧档案抽屉 */
@media (max-width:1119px){
  .nav-toggle{ display:inline-flex; }
  .site-nav{
    position:fixed;
    top:0; right:0; bottom:0; left:auto;
    width:min(88vw,420px);
    margin:0;
    padding:calc(var(--header-h) + 30px) clamp(20px,5vw,36px) 40px;
    background:linear-gradient(180deg,#071018 0%,#0B1B2B 100%);
    border-left:1px solid var(--line);
    box-shadow:-24px 0 60px rgba(0,0,0,.55);
    overflow-y:auto;
    z-index:85;
    transform:translateX(102%);
    visibility:hidden;
    transition:transform .34s var(--ease), visibility .34s var(--ease);
  }
  .site-nav[data-open="true"]{ transform:translateX(0); visibility:visible; }
  .site-nav__list{ flex-direction:column; align-items:stretch; gap:0; }
  .site-nav__item{ border-bottom:1px solid var(--line); }
  .site-nav__item:first-child{ border-top:1px solid var(--line); }
  .site-nav__link{
    display:flex;
    align-items:baseline;
    gap:14px;
    width:100%;
    padding:18px 4px;
    font-family:var(--font-display);
    font-size:17px;
    font-weight:700;
    letter-spacing:.06em;
  }
  .site-nav__link::after{ display:none; }
  .site-nav__idx{ font-size:11px; }
  .site-nav__foot{
    display:block;
    margin:30px 0 0;
    font-size:11px;
    letter-spacing:.18em;
    color:var(--gray);
  }
}

/* ---------- 6. 主体占位 ---------- */
.site-main{ display:block; padding-top:var(--header-h); }
.bleed-top{ margin-top:calc(var(--header-h) * -1); padding-top:var(--header-h); }

/* ---------- 7. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,9vw,132px);
  padding:clamp(48px,7vw,96px) var(--pad) 28px;
  background:linear-gradient(180deg, rgba(7,16,24,.86) 0%, #071018 44%);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px; left:0;
  width:min(320px,42vw);
  height:2px;
  background:linear-gradient(90deg, var(--gold) 0%, rgba(176,138,62,0) 100%);
}
.footer-inner{
  display:grid;
  grid-template-columns:minmax(260px,1.5fr) repeat(3, minmax(140px,1fr));
  gap:clamp(28px,4vw,64px);
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
}
.footer-brand{ display:flex; flex-direction:column; gap:18px; }
.footer-brand__line{
  margin:0;
  font-family:var(--font-display);
  font-size:15px;
  letter-spacing:.06em;
  color:rgba(237,228,211,.72);
}
.footer-contact{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin:0;
  font-size:13px;
}
.footer-contact__row{
  display:grid;
  grid-template-columns:44px 1fr;
  gap:4px 12px;
  align-items:baseline;
}
.footer-contact dt{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--gold);
}
.footer-contact dd{
  margin:0;
  color:rgba(237,228,211,.82);
  line-height:1.65;
  word-break:break-word;
}
.footer-note{
  margin:0;
  max-width:34em;
  font-size:12px;
  line-height:1.75;
  color:var(--gray);
}
.footer-col__title{
  margin:0 0 16px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  letter-spacing:.18em;
  color:var(--gold);
}
.footer-col__list{ display:flex; flex-direction:column; gap:10px; list-style:none; }
.footer-col__list a{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:14px;
  color:rgba(237,228,211,.78);
  transition:color .2s var(--ease);
}
.footer-col__list a::before{
  content:"";
  width:6px; height:1px;
  background:var(--line);
  transition:width .22s var(--ease), background .22s var(--ease);
}
.footer-col__list a:hover{ color:var(--gold-bright); }
.footer-col__list a:hover::before{ width:16px; background:var(--gold-bright); }
.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 24px;
  width:100%;
  max-width:var(--wrap);
  margin:clamp(36px,5vw,64px) auto 0;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.footer-legal__text{
  flex:1 1 320px;
  margin:0;
  font-size:12.5px;
  line-height:1.7;
  color:var(--gray);
}
.footer-legal__meta{
  margin:0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--gray);
}
.to-top{
  padding:9px 16px;
  background:transparent;
  border:1px solid var(--gold);
  color:var(--gold-bright);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  border-radius:var(--radius);
  cursor:pointer;
  transition:background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.to-top:hover{ background:var(--gold); color:var(--ink-deep); border-color:var(--gold-bright); }

@media (max-width:1080px){
  .footer-inner{ grid-template-columns:repeat(2, minmax(0,1fr)); }
}
@media (max-width:600px){
  .footer-inner{ grid-template-columns:minmax(0,1fr); }
  .footer-legal{ flex-direction:column; align-items:flex-start; }
}

/* ---------- 8. 容器与网格 ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--pad);
}
.wrap--narrow{ max-width:940px; }
.wrap--prose{ max-width:780px; }
.grid{ display:grid; gap:var(--gap); }
.grid--2{ grid-template-columns:repeat(2, minmax(0,1fr)); }
.grid--3{ grid-template-columns:repeat(3, minmax(0,1fr)); }
.grid--4{ grid-template-columns:repeat(4, minmax(0,1fr)); }
@media (max-width:1024px){
  .grid--3,.grid--4{ grid-template-columns:repeat(2, minmax(0,1fr)); }
}
@media (max-width:640px){
  .grid--2,.grid--3,.grid--4{ grid-template-columns:minmax(0,1fr); }
}

/* ---------- 9. 章节 ---------- */
.section{
  position:relative;
  padding-block:var(--sp-section);
}
.section--tight{ padding-block:clamp(32px,5vw,64px); }
.section--deep{ background:linear-gradient(180deg, rgba(7,16,24,.72) 0%, rgba(7,16,24,.98) 100%); }
.section--paper{ background:var(--paper-white); color:var(--ink); }
.section--paper h2,.section--paper h3,.section--paper h4{ color:var(--ink); }
.section--paper p{ color:rgba(11,27,43,.86); }
.section--paper a{ color:#7d5f22; }

.section-head{
  display:flex;
  align-items:baseline;
  gap:16px;
  padding-bottom:14px;
  margin-bottom:clamp(20px,3vw,40px);
  border-bottom:1px solid var(--line);
}
.section-head__index{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--gold);
  flex:0 0 auto;
}
.section-head__title{
  margin:0;
  font-family:var(--font-display);
  font-size:clamp(1.25rem,2.4vw,1.75rem);
  font-weight:800;
  letter-spacing:.04em;
  color:var(--paper);
}
.section-head__note{
  margin:0 0 0 auto;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--gray);
  text-align:right;
}
@media (max-width:640px){
  .section-head{ flex-wrap:wrap; }
  .section-head__note{ margin-left:0; flex-basis:100%; text-align:left; }
}
.hairline{ height:1px; background:var(--line); border:0; margin:0; }

/* ---------- 10. 正文容器 ---------- */
.prose{
  max-width:36em;
  font-size:17px;
  line-height:1.85;
  color:rgba(237,228,211,.9);
}
.prose p{ margin:0 0 1.15em; }
.prose h2{ margin:1.6em 0 .5em; font-size:clamp(1.35rem,2.4vw,1.8rem); }
.prose h3{ margin:1.4em 0 .45em; }
.prose ul,.prose ol{ margin:0 0 1.15em; padding-left:1.3em; }
.prose li{ margin-bottom:.45em; }
.prose a{
  color:var(--gold-bright);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-color:rgba(216,178,94,.5);
}
.prose--paper{
  background:var(--paper-white);
  color:rgba(11,27,43,.9);
  padding:clamp(24px,4vw,52px);
  border-radius:var(--radius);
}
.prose--paper h2,.prose--paper h3,.prose--paper h4{ color:var(--ink); }
.prose--paper a{ color:#7d5f22; text-decoration-color:rgba(125,95,34,.5); }

/* ---------- 11. 档案卡片 / 数据点 / 标签 ---------- */
.panel{
  position:relative;
  padding:clamp(18px,2.4vw,32px);
  background:linear-gradient(180deg, rgba(30,50,67,.36) 0%, rgba(11,27,43,.88) 100%);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  transition:border-color .25s var(--ease), transform .25s var(--ease);
}
.panel::after{
  content:"";
  position:absolute;
  left:0; bottom:0;
  width:0; height:2px;
  background:linear-gradient(90deg, var(--gold) 0%, var(--gold-bright) 100%);
  transition:width .36s var(--ease);
}
.panel:hover{ border-color:rgba(176,138,62,.6); transform:translateY(-2px); }
.panel:hover::after{ width:100%; }
.panel__index{
  display:block;
  margin-bottom:12px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.18em;
  color:var(--gold);
}
.panel__title{
  margin:0 0 .5em;
  font-family:var(--font-display);
  font-size:clamp(1.125rem,1.8vw,1.375rem);
  font-weight:700;
  letter-spacing:.04em;
}
.panel__text{
  margin:0 0 1em;
  font-size:15px;
  line-height:1.8;
  color:rgba(237,228,211,.8);
}
.panel__list{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:8px;
  font-size:14.5px;
  color:rgba(237,228,211,.82);
}
.panel__list li{
  display:flex;
  gap:10px;
  align-items:baseline;
  padding-bottom:8px;
  border-bottom:1px dashed rgba(30,50,67,.9);
}
.panel__list li:last-child{ border-bottom:0; padding-bottom:0; }

.stat{ display:flex; flex-direction:column; gap:2px; }
.stat__value{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(26px,4vw,46px);
  line-height:1.1;
  letter-spacing:.02em;
  color:var(--gold-bright);
}
.stat__unit{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--gray);
}
.stat__label{
  margin-top:4px;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--gray);
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--gray);
  white-space:nowrap;
}
.tag--gold{ border-color:var(--gold); color:var(--gold-bright); }
.tag--cinnabar{ border-color:var(--cinnabar); color:var(--cinnabar); }
.tag--jade{ border-color:var(--jade); color:var(--jade); }

/* ---------- 12. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 22px;
  background:transparent;
  border:1px solid var(--gold);
  border-radius:var(--radius);
  color:var(--gold-bright);
  font-size:15px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
}
.btn:hover{ background:var(--gold); color:var(--ink-deep); border-color:var(--gold-bright); }
.btn--solid{ background:var(--gold); color:var(--ink-deep); border-color:var(--gold-bright); }
.btn--solid:hover{ background:var(--gold-bright); }
.btn--ghost{ border-color:var(--line); color:var(--paper); }
.btn--ghost:hover{ background:transparent; border-color:var(--gold); color:var(--gold-bright); }
.btn--cinnabar{ border-color:var(--cinnabar); color:var(--cinnabar); }
.btn--cinnabar:hover{ background:var(--cinnabar); color:var(--paper-white); border-color:var(--cinnabar); }

/* ---------- 13. 面包屑 ---------- */
.breadcrumb{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--gray);
}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
}
.breadcrumb li{ display:inline-flex; align-items:center; gap:8px; }
.breadcrumb li + li::before{
  content:"/";
  color:var(--line);
}
.breadcrumb a{ color:var(--gray); }
.breadcrumb a:hover{ color:var(--gold-bright); }
.breadcrumb [aria-current="page"]{ color:var(--paper); }

/* ---------- 14. 图片容器基类 ---------- */
.figure-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16 / 9;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background-color:var(--ink-deep);
  background-image:
    repeating-linear-gradient(to right, rgba(30,50,67,.75) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(to bottom, rgba(30,50,67,.75) 0 1px, transparent 1px 32px),
    radial-gradient(120% 90% at 78% 8%, rgba(176,138,62,.16), transparent 62%);
}
.figure-frame::after{
  content:"";
  position:absolute;
  right:10px; bottom:10px;
  width:22px; height:22px;
  border-right:1px solid var(--gold);
  border-bottom:1px solid var(--gold);
  opacity:.85;
  pointer-events:none;
}
.figure-frame > img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.figure-frame--wide{ aspect-ratio:21 / 9; }
.figure-frame--tall{ aspect-ratio:3 / 4; }
.figure-frame--square{ aspect-ratio:1 / 1; }
.figure-frame--badge{
  aspect-ratio:1 / 1;
  width:96px;
  max-width:96px;
  border-color:rgba(176,138,62,.7);
}
.figure-cap{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--gray);
}

/* ---------- 15. 左侧厅别轴 ---------- */
.axis-rail{
  position:fixed;
  left:0;
  top:var(--header-h);
  bottom:0;
  width:var(--rail-w);
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:24px;
  padding:28px 0 24px;
  background:var(--ink-deep);
  border-right:1px solid var(--line);
  z-index:40;
}
.axis-rail__title{
  margin:0;
  writing-mode:vertical-rl;
  text-orientation:upright;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.34em;
  color:var(--gray);
}
.axis-rail__list{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
  list-style:none;
}
.axis-rail__link{
  writing-mode:vertical-rl;
  text-orientation:upright;
  padding:8px 4px;
  font-size:13px;
  letter-spacing:.24em;
  color:rgba(237,228,211,.8);
  border-left:1px solid transparent;
  transition:color .2s var(--ease), border-color .2s var(--ease);
}
.axis-rail__link:hover{ color:var(--gold-bright); }
.axis-rail__link[data-active="true"]{
  color:var(--gold-bright);
  border-left-color:var(--cinnabar);
}
.axis-rail__foot{
  margin-top:auto;
  writing-mode:vertical-rl;
  text-orientation:upright;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.2em;
  color:var(--gray);
}
.railed{ padding-left:var(--rail-w); }
@media (max-width:1119px){
  .axis-rail{ display:none; }
  .railed{ padding-left:0; }
}

/* ---------- 16. 显现 ---------- */
.reveal{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .6s var(--ease), transform .6s var(--ease);
}
.reveal.is-in{ opacity:1; transform:none; }

/* ---------- 17. 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{ opacity:1 !important; transform:none !important; }
  .panel:hover{ transform:none; }
}