/* =========================================================
   神话娱乐方方 — 共享样式 /assets/site.css
   ========================================================= */

:root{
  --ink:#081725;
  --night:#102A43;
  --slate:#2C4052;
  --gold:#D6B26A;
  --sand:#F2E2BC;
  --cinnabar:#C24B38;
  --clay:#8A5A44;
  --moss:#5E6F5B;
  --paper:#F6F0E5;
  --fog:#A9B3BA;

  --shell:1440px;
  --gutter:20px;

  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",Georgia,"Times New Roman",serif;
  --font-sans:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;

  --line:1px solid var(--slate);
  --radius:2px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 28px 70px -40px rgba(0,0,0,.95);
}

@media (min-width:640px){ :root{ --gutter:32px; } }
@media (min-width:1080px){ :root{ --gutter:48px; } }

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 620px at 12% -12%, rgba(16,42,67,.95), transparent 68%),
    radial-gradient(900px 520px at 102% 2%, rgba(138,90,68,.20), transparent 62%);
  background-repeat:no-repeat;
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5,h6,p,dl,dd,figure{margin:0;}
hr{border:0;border-top:var(--line);margin:0;}
::selection{background:var(--gold);color:var(--ink);}

/* ---------- 中文排版 ---------- */
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-serif);
  font-weight:600;
  line-height:1.22;
  letter-spacing:.01em;
  color:var(--paper);
}
h1{font-size:clamp(32px,5.4vw,64px);font-weight:700;}
h2{font-size:clamp(26px,3.6vw,48px);}
h3{font-size:clamp(20px,2.2vw,32px);}
h4{font-size:clamp(18px,1.6vw,24px);}
h5{font-size:18px;}
h6{font-size:16px;}
.display{
  font-family:var(--font-serif);
  font-weight:700;
  font-size:clamp(40px,9vw,112px);
  line-height:1.02;
  letter-spacing:-.01em;
}
p{max-width:70ch;}
.mono{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  font-variant-ligatures:none;
}
.kicker{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--gold);
}
.lede{
  font-size:clamp(16px,1.5vw,18px);
  line-height:1.8;
  color:var(--fog);
  max-width:60ch;
}
.prose{max-width:760px;}
.prose p + p{margin-top:1.1em;}
.prose h2{margin-top:1.6em;margin-bottom:.5em;}
.prose h3{margin-top:1.3em;margin-bottom:.4em;}
.prose ul{list-style:none;margin:1em 0;padding:0;}
.prose ul li{
  position:relative;
  padding-left:1.4em;
  margin:.45em 0;
  color:var(--fog);
}
.prose ul li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:8px;height:1px;
  background:var(--gold);
}
.annot{
  writing-mode:vertical-rl;
  font-family:var(--font-sans);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--fog);
  line-height:1;
}

/* ---------- 容器与布局 ---------- */
.shell{
  width:min(var(--shell),100% - (var(--gutter) * 2));
  margin-inline:auto;
}
.section{padding-block:clamp(48px,7vw,96px);}
.section--tight{padding-block:clamp(28px,4vw,56px);}
.stack{display:flex;flex-direction:column;gap:clamp(16px,2.2vw,32px);}
.cluster{display:flex;flex-wrap:wrap;gap:12px 16px;align-items:center;}
.grid{
  display:grid;
  gap:clamp(16px,2.4vw,32px);
  grid-template-columns:repeat(12,minmax(0,1fr));
}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.split{display:grid;gap:clamp(20px,3vw,48px);grid-template-columns:repeat(12,minmax(0,1fr));}
.split > :first-child{grid-column:span 5;}
.split > :last-child{grid-column:span 7;}
@media (max-width:900px){
  .grid{grid-template-columns:repeat(6,minmax(0,1fr));}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{grid-template-columns:1fr;}
  .split > :first-child,
  .split > :last-child{grid-column:auto;}
}
@media (max-width:600px){
  .grid{grid-template-columns:1fr;}
  .grid--2,.grid--3{grid-template-columns:1fr;}
}

/* ---------- 跳转与焦点 ---------- */
.skip-link{
  position:fixed;
  top:8px;left:8px;
  z-index:200;
  transform:translateY(-160%);
  padding:12px 20px;
  background:var(--sand);
  color:var(--ink);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  border-radius:var(--radius);
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0);}
:focus-visible{
  outline:2px solid var(--sand);
  outline-offset:3px;
  border-radius:1px;
}
#main-content{scroll-margin-top:140px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  padding:.85em 1.4em;
  border:1px solid transparent;
  border-radius:var(--radius);
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.1em;
  line-height:1.2;
  cursor:pointer;
  transition:background-color .22s var(--ease),color .22s var(--ease),
             border-color .22s var(--ease),transform .22s var(--ease);
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn--primary{
  background:var(--cinnabar);
  border-color:var(--cinnabar);
  color:var(--paper);
}
.btn--primary:hover{background:#d1583f;border-color:#d1583f;}
.btn--ghost{
  background:transparent;
  border-color:rgba(214,178,106,.55);
  color:var(--gold);
}
.btn--ghost:hover{background:rgba(214,178,106,.12);color:var(--sand);border-color:var(--gold);}
.btn--sand{
  background:var(--sand);
  border-color:var(--sand);
  color:var(--ink);
}
.btn--sand:hover{background:var(--paper);border-color:var(--paper);}
.btn--sm{padding:.6em 1em;font-size:11px;}

/* ---------- 页头：框架式导航轨道 ---------- */
.frame-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(8,23,37,.86);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid var(--slate);
  box-shadow:0 18px 40px -32px rgba(0,0,0,.9);
}
.frame-progress{
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  background:rgba(44,64,82,.55);
  overflow:hidden;
}
.frame-progress__bar{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--gold),var(--cinnabar));
}
.frame-header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding-block:16px;
}
.frame-brand{
  display:inline-flex;
  align-items:center;
  gap:14px;
  min-width:0;
}
.frame-brand__mark{
  flex:0 0 auto;
  display:grid;
  place-items:center;
  width:46px;height:46px;
  border:1px solid rgba(214,178,106,.75);
  background:
    linear-gradient(150deg,rgba(214,178,106,.18),rgba(8,23,37,0) 68%),
    var(--night);
  color:var(--gold);
  font-family:var(--font-serif);
  font-size:22px;
  font-weight:600;
  line-height:1;
  box-shadow:inset 0 0 0 3px rgba(8,23,37,.55);
}
.frame-brand__text{display:flex;flex-direction:column;gap:4px;min-width:0;}
.frame-brand__name{
  font-family:var(--font-serif);
  font-size:18px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--paper);
  line-height:1.2;
  white-space:nowrap;
}
.frame-brand__tag{
  font-family:var(--font-sans);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--fog);
  line-height:1.2;
  white-space:nowrap;
}
.frame-brand:hover .frame-brand__mark{border-color:var(--sand);color:var(--sand);}
.frame-brand:hover .frame-brand__name{color:var(--sand);}

.frame-utility{
  display:flex;
  align-items:center;
  gap:22px;
  font-size:13px;
  letter-spacing:.04em;
}
.frame-utility__link{
  position:relative;
  padding-block:4px;
  color:var(--fog);
  transition:color .2s var(--ease);
}
.frame-utility__link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:var(--gold);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .3s var(--ease);
}
.frame-utility__link:hover{color:var(--sand);}
.frame-utility__link:hover::after{transform:scaleX(1);}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:10px 14px;
  background:rgba(16,42,67,.6);
  border:1px solid var(--slate);
  border-radius:var(--radius);
  color:var(--sand);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--gold);color:var(--gold);}
.nav-toggle__bars{display:grid;gap:5px;width:18px;}
.nav-toggle__bars span{
  display:block;
  height:1px;
  background:var(--gold);
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:first-child{transform:translateY(3px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:last-child{transform:translateY(-3px) rotate(-45deg);}
.nav-toggle__text{line-height:1;}

.frame-nav{
  border-top:1px solid rgba(44,64,82,.85);
  background:linear-gradient(180deg,rgba(16,42,67,.55),rgba(8,23,37,.12));
}
.frame-nav__inner{
  display:flex;
  align-items:center;
  gap:26px;
  padding-block:8px;
}
.frame-nav__legend{
  flex:0 0 auto;
  padding-right:20px;
  border-right:1px solid var(--slate);
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.26em;
  color:var(--clay);
  text-transform:uppercase;
  white-space:nowrap;
}
.frame-nav__list{
  display:flex;
  flex:1 1 auto;
  flex-wrap:wrap;
  min-width:0;
}
.frame-nav__item{
  border-left:1px solid rgba(44,64,82,.55);
}
.frame-nav__item--cta{display:none;}
.frame-nav__link{
  position:relative;
  display:flex;
  align-items:baseline;
  gap:8px;
  padding:10px 20px;
  color:var(--fog);
  font-size:14px;
  letter-spacing:.03em;
  transition:color .2s var(--ease);
}
.frame-nav__index{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.1em;
  color:var(--clay);
  transition:color .2s var(--ease);
}
.frame-nav__label{white-space:nowrap;}
.frame-nav__link::after{
  content:"";
  position:absolute;
  left:20px;right:20px;bottom:4px;
  height:1px;
  background:var(--gold);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .3s var(--ease);
}
.frame-nav__link:hover{color:var(--sand);}
.frame-nav__link:hover .frame-nav__index{color:var(--gold);}
.frame-nav__link:hover::after{transform:scaleX(1);}
.frame-nav__link[aria-current="page"]{color:var(--sand);}
.frame-nav__link[aria-current="page"] .frame-nav__index{color:var(--gold);}
.frame-nav__link[aria-current="page"]::after{transform:scaleX(1);}
.frame-nav__meta{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.16em;
  color:var(--fog);
  white-space:nowrap;
}
.frame-nav__cta{display:none;}

@media (max-width:1180px){
  .frame-nav__legend,.frame-nav__meta{display:none;}
  .frame-nav__link{padding:10px 14px;font-size:13px;}
  .frame-nav__link::after{left:14px;right:14px;}
  .frame-utility{gap:16px;}
}
@media (max-width:980px){
  .frame-utility__link{display:none;}
}
@media (max-width:900px){
  .frame-header__inner{padding-block:12px;gap:12px;}
  .frame-utility{display:none;}
  .nav-toggle{display:inline-flex;}
  .frame-brand__mark{width:40px;height:40px;font-size:19px;}
  .frame-brand__name{font-size:16px;}
  .frame-brand__tag{font-size:10px;letter-spacing:.12em;}
  .frame-nav{border-top:1px solid rgba(44,64,82,.9);}
  .frame-nav__inner{display:block;padding:0;}
  .frame-nav__list{
    display:block;
    max-height:0;
    overflow:hidden;
    transition:max-height .42s var(--ease);
  }
  .frame-nav[data-open] .frame-nav__list{max-height:78vh;overflow-y:auto;}
  .frame-nav__item{
    display:block;
    border-left:0;
    border-top:1px solid rgba(44,64,82,.72);
  }
  .frame-nav__item:first-child{border-top:0;}
  .frame-nav__item--cta{display:block;padding:16px 0 20px;}
  .frame-nav__link{padding:15px 2px;font-size:16px;color:var(--paper);}
  .frame-nav__link::after{left:2px;right:auto;width:30px;bottom:8px;}
  .frame-nav__cta{display:inline-flex;width:100%;}
}
@media (max-width:420px){
  .frame-brand__tag{display:none;}
}

/* ---------- 页脚：三层堆叠 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,9vw,132px);
  border-top:1px solid var(--slate);
  background:linear-gradient(180deg,rgba(16,42,67,.55),rgba(5,15,25,.98) 62%);
}
.site-footer__inner{padding-top:clamp(44px,6vw,84px);}
.site-footer__top{
  display:grid;
  grid-template-columns:minmax(250px,1.1fr) minmax(0,1.5fr) minmax(280px,1fr);
  gap:clamp(28px,4vw,60px);
}
.site-footer__mark{
  display:grid;
  place-items:center;
  width:44px;height:44px;
  margin-bottom:18px;
  border:1px solid rgba(214,178,106,.7);
  background:linear-gradient(150deg,rgba(214,178,106,.18),rgba(8,23,37,0) 70%);
  color:var(--gold);
  font-family:var(--font-serif);
  font-size:21px;
  line-height:1;
}
.site-footer__name{
  font-family:var(--font-serif);
  font-size:22px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--paper);
}
.site-footer__statement{
  margin-top:10px;
  max-width:34ch;
  font-size:14px;
  line-height:1.8;
  color:var(--fog);
}
.site-footer__note{
  margin-top:14px;
  max-width:40ch;
  font-size:12px;
  line-height:1.75;
  color:rgba(169,179,186,.82);
}
.site-footer__nav{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(20px,3vw,40px);
}
.site-footer__title{
  margin-bottom:16px;
  padding-bottom:10px;
  border-bottom:1px solid rgba(44,64,82,.85);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--gold);
}
.site-footer__links{display:flex;flex-direction:column;gap:2px;}
.site-footer__link{
  position:relative;
  display:inline-block;
  padding:6px 0 6px 0;
  color:var(--fog);
  font-size:14px;
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.site-footer__link::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:0;height:1px;
  background:var(--gold);
  transition:width .24s var(--ease);
}
.site-footer__link:hover{color:var(--sand);padding-left:16px;}
.site-footer__link:hover::before{width:10px;}

.contact-list{border-top:1px solid rgba(44,64,82,.85);}
.contact-list__item{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px 12px;
  padding-block:12px;
  border-bottom:1px solid rgba(44,64,82,.55);
}
.contact-list__label{
  flex:0 0 100%;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--clay);
}
.contact-list__value{
  flex:1 1 auto;
  min-width:0;
  font-size:14px;
  color:var(--paper);
  word-break:break-word;
}
.copy-btn{
  flex:0 0 auto;
  padding:4px 10px;
  background:transparent;
  border:1px solid var(--slate);
  border-radius:var(--radius);
  color:var(--fog);
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.14em;
  cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.copy-btn:hover{border-color:var(--gold);color:var(--gold);}
.copy-btn[data-copied]{border-color:var(--moss);color:#8FA98A;}

.site-footer__watermark{
  margin-top:clamp(32px,5vw,64px);
  font-family:var(--font-serif);
  font-size:clamp(44px,13vw,168px);
  font-weight:700;
  line-height:.82;
  letter-spacing:.02em;
  color:rgba(246,240,229,.05);
  user-select:none;
  overflow:hidden;
  white-space:nowrap;
}
.site-footer__base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  margin-top:clamp(18px,3vw,32px);
  padding-block:22px;
  border-top:1px solid rgba(44,64,82,.85);
}
.site-footer__legal,
.site-footer__icp{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--fog);
}
.site-footer__icp{font-family:var(--font-mono);color:var(--clay);}
@media (max-width:1080px){
  .site-footer__top{grid-template-columns:1fr 1fr;}
  .site-footer__contact{grid-column:1 / -1;}
}
@media (max-width:700px){
  .site-footer__top{grid-template-columns:1fr;}
  .site-footer__nav{grid-template-columns:1fr 1fr;gap:24px;}
  .site-footer__watermark{font-size:clamp(38px,15vw,90px);}
}

/* ---------- 面包屑 ---------- */
.crumbs{margin-bottom:clamp(20px,3vw,36px);}
.crumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumbs__item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--fog);
}
.crumbs__item + .crumbs__item::before{
  content:"/";
  color:var(--slate);
}
.crumbs__link{color:var(--fog);transition:color .2s var(--ease);}
.crumbs__link:hover{color:var(--gold);}
.crumbs__item[aria-current="page"]{color:var(--gold);}

/* ---------- 面板 ---------- */
.panel{
  position:relative;
  padding:clamp(20px,2.6vw,36px);
  background:var(--night);
  border:1px solid var(--slate);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.panel--glass{
  background:linear-gradient(160deg,rgba(44,64,82,.55),rgba(8,23,37,.35));
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-color:rgba(214,178,106,.28);
}
.panel--paper{
  background:var(--paper);
  border-color:rgba(44,64,82,.35);
  color:var(--ink);
}
.panel--paper h1,.panel--paper h2,.panel--paper h3,.panel--paper h4{color:var(--ink);}
.panel--paper p{color:#22364a;}
.panel--paper .kicker{color:var(--clay);}

/* ---------- 标签 / 状态 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border:1px solid var(--slate);
  border-radius:var(--radius);
  background:rgba(16,42,67,.7);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--fog);
  line-height:1.5;
}
.tag--gold{color:var(--gold);border-color:rgba(214,178,106,.55);background:rgba(214,178,106,.1);}
.tag--clay{color:#C89B84;border-color:rgba(138,90,68,.7);background:rgba(138,90,68,.22);}
.tag--moss{color:#A8BCA2;border-color:rgba(94,111,91,.8);background:rgba(94,111,91,.28);}
.tag--live{color:var(--paper);border-color:var(--cinnabar);background:rgba(194,75,56,.85);}

/* ---------- 提示条 ---------- */
.callout{
  padding:clamp(16px,2vw,24px);
  background:rgba(16,42,67,.6);
  border:1px solid var(--slate);
  border-left:2px solid var(--gold);
  color:var(--fog);
  font-size:14px;
  line-height:1.8;
}
.callout strong{color:var(--sand);font-weight:600;}

/* ---------- 媒体容器基础规则 ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  border:1px solid var(--slate);
  border-radius:var(--radius);
  background:
    radial-gradient(120% 90% at 20% 0%,rgba(44,64,82,.85),transparent 70%),
    linear-gradient(155deg,var(--night),#050f19 78%);
}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(214,178,106,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(214,178,106,.07) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.media img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.92) contrast(1.02);
}
.media--wide{aspect-ratio:16 / 9;}
.media--square{aspect-ratio:1 / 1;}
.media--tall{aspect-ratio:3 / 4;}
.media--banner{aspect-ratio:21 / 9;}
.media__caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--fog);
}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:26px;}
.timeline::before{
  content:"";
  position:absolute;
  left:5px;top:6px;bottom:6px;
  width:1px;
  background:linear-gradient(180deg,var(--gold),rgba(44,64,82,.9));
}
.timeline__item{position:relative;padding:0 0 clamp(20px,3vw,32px) 0;}
.timeline__item:last-child{padding-bottom:0;}
.timeline__dot{
  position:absolute;
  left:-25px;top:8px;
  width:11px;height:11px;
  border:1px solid var(--gold);
  background:var(--ink);
  transform:rotate(45deg);
}
.timeline__item[data-state="current"] .timeline__dot{background:var(--cinnabar);border-color:var(--cinnabar);}
.timeline__meta{
  display:block;
  margin-bottom:6px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--clay);
}
.timeline__body{color:var(--fog);font-size:15px;line-height:1.8;}
.timeline__body h3{margin-bottom:6px;font-size:20px;color:var(--paper);}

/* ---------- 折叠面板 ---------- */
.accordion{border-top:1px solid var(--slate);}
.accordion__item{border-bottom:1px solid rgba(44,64,82,.85);}
.accordion__trigger{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:18px 4px;
  background:transparent;
  border:0;
  text-align:left;
  color:var(--paper);
  font-family:var(--font-serif);
  font-size:17px;
  font-weight:600;
  cursor:pointer;
  transition:color .2s var(--ease);
}
.accordion__trigger:hover{color:var(--sand);}
.accordion__trigger::after{
  content:"+";
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:16px;
  color:var(--gold);
  transition:transform .25s var(--ease);
}
.accordion__trigger[aria-expanded="true"]::after{transform:rotate(45deg);}
.accordion__panel{padding:0 4px 20px;color:var(--fog);font-size:15px;line-height:1.8;}
.accordion__panel[data-accordion-panel]{display:none;}
.accordion__panel[data-accordion-panel][data-open]{display:block;}

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

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .has-js [data-reveal]{
    opacity:1 !important;
    transform:none !important;
    transition:none !important;
  }
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .btn:hover{transform:none;}
}