/* ==========================================================================
   优游中心 · 共享样式表 /assets/site.css
   档案室视觉体系：墨蓝分区 + 纸白纸纹 + 砂金编号 + 青瓷状态 + 印章朱标记
   ========================================================================== */

:root{
  /* 品牌色 */
  --ink-900:#0B1B2E;
  --ink-700:#16293E;
  --ink-500:#24405B;
  --slate-400:#7C8DA0;
  --paper-100:#F5F0E6;
  --paper-200:#E8E0D0;
  --paper-000:#FBF8F1;
  --gold-500:#C6A15B;
  --gold-300:#E4CE9A;
  --celadon-600:#4E7C74;
  --seal-600:#A8452F;
  --inkgold-600:#8A6A2F;

  /* 字体栈 */
  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-body:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Noto Sans SC",monospace;

  /* 结构与节奏 */
  --rail:96px;
  --shell:1240px;
  --radius-lg:28px;
  --radius-md:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --hairline:rgba(11,27,46,.12);
  --hairline-dark:rgba(228,206,154,.22);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:132px}
body,h1,h2,h3,h4,h5,p,ul,ol,li,dl,dt,dd,figure,blockquote,fieldset{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--gold-500);outline-offset:3px;border-radius:4px}
[hidden]{display:none !important}

/* ---------- 基础排版：档案纸 ---------- */
body{
  min-height:100vh;
  padding-left:0;
  background-color:var(--paper-100);
  background-image:repeating-linear-gradient(0deg,rgba(11,27,46,.028) 0 1px,transparent 1px 6px);
  color:var(--ink-900);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
}

h1,h2,h3,h4,h5{
  font-family:var(--font-display);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.24;
  color:var(--ink-900);
}

.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
}

.index-label{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--slate-400);
}

/* ---------- 容器与骨架 ---------- */
.container{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,44px);
}

.section{padding-block:clamp(48px,7vw,96px)}
.section--tight{padding-block:clamp(28px,4vw,52px)}
.section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px 28px;
  padding-bottom:16px;
  margin-bottom:clamp(24px,3vw,40px);
  border-bottom:1px solid var(--hairline);
}
.section__title{font-size:clamp(24px,3vw,34px)}
.section__note{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--slate-400);
}

.rule{height:1px;border:0;background:linear-gradient(90deg,var(--gold-500),rgba(198,161,91,0))}

/* ---------- 网格 ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,32px)}
@media (min-width:900px){
  .grid--7-5{grid-template-columns:7fr 5fr}
  .grid--8-4{grid-template-columns:8fr 4fr}
  .grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
}

/* ---------- 按钮与胶囊 ---------- */
.pill{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 20px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-family:var(--font-display);
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  white-space:nowrap;
  transition:background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.pill--gold{background:var(--gold-500);border-color:var(--gold-500);color:var(--ink-900)}
.pill--gold:hover{background:var(--gold-300);border-color:var(--gold-300);transform:translateY(-1px)}
.pill--outline{background:transparent;border-color:rgba(228,206,154,.5);color:var(--paper-100)}
.pill--outline:hover{background:rgba(228,206,154,.14);border-color:var(--gold-300);color:var(--gold-300)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 26px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-family:var(--font-display);
  font-size:15px;
  font-weight:700;
  letter-spacing:.03em;
  transition:background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.btn--primary{background:var(--ink-900);color:var(--paper-100)}
.btn--primary:hover{background:var(--ink-700);transform:translateY(-1px)}
.btn--ghost{background:transparent;border-color:rgba(11,27,46,.24);color:var(--ink-900)}
.btn--ghost:hover{border-color:var(--ink-900);background:rgba(11,27,46,.05)}
.btn--gold{background:var(--gold-500);color:var(--ink-900)}
.btn--gold:hover{background:var(--gold-300)}

/* ---------- 跳至主要内容 ---------- */
.skip-link{
  position:absolute;
  left:16px;
  top:-64px;
  z-index:120;
  padding:10px 18px;
  border-radius:var(--radius-pill);
  background:var(--ink-900);
  color:var(--paper-100);
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.1em;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:12px}

/* ==========================================================================
   页头：左侧品牌轨道 + 居中刊头导航
   ========================================================================== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(245,240,230,.94);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--hairline);
}

/* --- 品牌轨道 --- */
.brand-rail{
  position:fixed;
  left:0;
  top:0;
  bottom:0;
  z-index:80;
  width:var(--rail);
  display:none;
  flex-direction:column;
  align-items:center;
  gap:12px;
  padding:20px 0 24px;
  background:var(--ink-900);
  background-image:repeating-linear-gradient(0deg,rgba(228,206,154,.05) 0 1px,transparent 1px 9px);
  color:var(--paper-100);
  border-right:1px solid var(--hairline-dark);
}
.brand-rail__stamp{
  display:grid;
  place-items:center;
  width:34px;
  height:34px;
  border-radius:9px;
  background:var(--seal-600);
  color:#F7EFE4;
  font-family:var(--font-display);
  font-weight:900;
  font-size:15px;
  line-height:1;
}
.brand-rail__brand{
  writing-mode:vertical-rl;
  text-orientation:upright;
  font-family:var(--font-display);
  font-weight:900;
  font-size:19px;
  letter-spacing:.2em;
  color:var(--paper-100);
}
.brand-rail__tagline{
  writing-mode:vertical-rl;
  text-orientation:upright;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.32em;
  color:var(--gold-300);
}
.brand-rail__rule{
  width:1px;
  flex:1 1 auto;
  min-height:20px;
  background:linear-gradient(180deg,rgba(228,206,154,.55),rgba(228,206,154,0));
}
.brand-rail__chapters{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
}
.brand-rail__chapters[hidden]{display:none}
.rail-chapter{
  position:relative;
  padding:2px 4px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:rgba(245,240,230,.45);
  transition:color .25s var(--ease);
}
.rail-chapter::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-4px;
  width:14px;
  height:1px;
  background:var(--gold-500);
  transform:translateX(-50%) scaleX(0);
  transition:transform .3s var(--ease);
}
.rail-chapter:hover{color:var(--gold-300)}
.rail-chapter[aria-current="true"]{color:var(--gold-500)}
.rail-chapter[aria-current="true"]::after{transform:translateX(-50%) scaleX(1)}
.brand-rail__progress{
  position:relative;
  width:3px;
  height:94px;
  border-radius:var(--radius-pill);
  background:rgba(245,240,230,.16);
  overflow:hidden;
}
.brand-rail__progress-fill{
  display:block;
  width:100%;
  height:0;
  border-radius:var(--radius-pill);
  background:var(--gold-500);
}
.brand-rail__meta{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:4px;
  text-align:center;
}
.brand-rail__meta .index-label{font-size:10px;letter-spacing:.14em;color:var(--slate-400)}
.brand-rail__date{font-size:11px;color:rgba(245,240,230,.72);letter-spacing:.02em}

@media (min-width:1024px){
  body{padding-left:var(--rail)}
  .brand-rail{display:flex}
}

/* --- 刊头 --- */
.masthead{padding:12px clamp(16px,3vw,36px) 0}
.masthead__bar{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  padding-bottom:10px;
}
.masthead__status{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  color:var(--slate-400);
}
.masthead__status .mono{font-size:12px;color:var(--ink-500)}
.status-dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--celadon-600);
  box-shadow:0 0 0 4px rgba(78,124,116,.16);
}
.masthead__brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:2px;
  text-align:center;
}
.masthead__brand-main{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(22px,2.6vw,30px);
  letter-spacing:-.02em;
  color:var(--ink-900);
}
.masthead__brand-sub{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.42em;
  text-indent:.42em;
  color:var(--inkgold-600);
}
.masthead__actions{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:12px;
}

/* --- 移动端栏目按钮 --- */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 16px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(11,27,46,.24);
  color:var(--ink-900);
  transition:border-color .25s var(--ease),background-color .25s var(--ease);
}
.nav-toggle:hover{border-color:var(--ink-900);background:rgba(11,27,46,.05)}
.nav-toggle__text{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em}
.nav-toggle__bars{position:relative;display:block;width:16px;height:10px}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  height:1.5px;
  background:currentColor;
  transition:transform .3s var(--ease),top .3s var(--ease),bottom .3s var(--ease);
}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.site-header[data-open] .nav-toggle__bars::before{top:4px;transform:rotate(45deg)}
.site-header[data-open] .nav-toggle__bars::after{bottom:4px;transform:rotate(-45deg)}

/* --- 主导航 --- */
.site-nav{border-top:1px solid var(--hairline)}
.site-nav__list{
  display:flex;
  flex-wrap:wrap;
  align-items:stretch;
  justify-content:center;
  gap:clamp(6px,1.6vw,22px);
}
.site-nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:12px 6px 14px;
  font-family:var(--font-display);
  font-size:15px;
  font-weight:500;
  letter-spacing:.02em;
  color:var(--ink-500);
  transition:color .25s var(--ease);
}
.site-nav__index{font-size:10px;letter-spacing:.1em;color:var(--slate-400);transition:color .25s var(--ease)}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:8px;
  height:2px;
  background:var(--gold-500);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .3s var(--ease);
}
.site-nav__link:hover{color:var(--ink-900)}
.site-nav__link:hover .site-nav__index{color:var(--gold-500)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--ink-900);font-weight:900}
.site-nav__link[aria-current="page"] .site-nav__index{color:var(--gold-500)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}

@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .masthead__status{display:none}
  .site-nav{display:none;padding:6px 0 14px}
  .site-header[data-open] .site-nav{display:block}
  .site-nav__list{flex-direction:column;flex-wrap:nowrap;gap:0}
  .site-nav__item{border-bottom:1px solid rgba(11,27,46,.08)}
  .site-nav__item:last-child{border-bottom:0}
  .site-nav__link{width:100%;justify-content:flex-start;padding:14px 6px;font-size:16px}
  .site-nav__link::after{display:none}
  .site-nav__link[aria-current="page"]{
    color:var(--ink-900);
    box-shadow:inset 3px 0 0 var(--gold-500);
    padding-left:14px;
  }
}
@media (max-width:640px){
  .masthead__bar{grid-template-columns:1fr auto;gap:10px}
  .masthead__brand{align-items:flex-start;text-align:left}
  .masthead__brand-sub{letter-spacing:.3em;text-indent:.3em}
}

/* ==========================================================================
   页脚：档案柜式深色分区
   ========================================================================== */
.site-footer{
  position:relative;
  margin-top:clamp(40px,6vw,88px);
  background:var(--ink-900);
  color:var(--paper-200);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(228,206,154,.06) 0 1px,transparent 1px 132px);
  pointer-events:none;
}
.site-footer__inner{
  position:relative;
  display:grid;
  gap:clamp(26px,4vw,48px);
  padding-block:clamp(40px,6vw,72px);
}
@media (min-width:900px){
  .site-footer__inner{grid-template-columns:1.1fr 2fr 1.3fr}
}
.site-footer .index-label{color:rgba(228,206,154,.85)}

.site-footer__lead{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:14px;
}
.site-footer__brand{
  font-family:var(--font-display);
  font-weight:900;
  font-size:24px;
  letter-spacing:-.01em;
  color:var(--paper-100);
}
.site-footer__tagline{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.4em;
  text-indent:.4em;
  color:var(--gold-300);
}

.site-footer__cols{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
  gap:clamp(20px,3vw,36px);
}
.footer-col__title{margin-bottom:14px}
.footer-col__list{display:flex;flex-direction:column;gap:10px}
.footer-link{
  font-size:15px;
  color:rgba(245,240,230,.78);
  transition:color .22s var(--ease),padding-left .22s var(--ease);
}
.footer-link:hover{color:var(--gold-300);padding-left:6px}

.site-footer__contact{display:flex;flex-direction:column;gap:14px}
.contact-list{display:flex;flex-direction:column;gap:12px}
.contact-list__row{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:12px;
  align-items:baseline;
  padding-bottom:10px;
  border-bottom:1px dashed rgba(228,206,154,.2);
}
.contact-list__key{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  color:var(--slate-400);
}
.contact-list__val{
  font-size:14px;
  color:var(--paper-100);
  overflow-wrap:anywhere;
}
.contact-note{
  font-size:13px;
  line-height:1.7;
  color:rgba(245,240,230,.6);
}

.site-footer__legal{position:relative;border-top:1px solid var(--hairline-dark)}
.site-footer__legal-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 28px;
  padding-block:18px;
}
.legal-line{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(245,240,230,.55);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;
  right:22px;
  bottom:22px;
  z-index:70;
  padding:10px 18px;
  border-radius:var(--radius-pill);
  background:var(--ink-900);
  border:1px solid rgba(228,206,154,.35);
  color:var(--paper-100);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  box-shadow:0 12px 30px rgba(11,27,46,.28);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s var(--ease),background-color .25s var(--ease);
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--ink-700)}

/* ==========================================================================
   通用内容组件（供页面专属布局调用）
   ========================================================================== */

/* 面包屑 */
.breadcrumbs{padding-top:clamp(18px,3vw,32px)}
.breadcrumbs__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--slate-400);
}
.breadcrumbs__item+.breadcrumbs__item::before{
  content:"/";
  margin-right:8px;
  color:rgba(124,141,160,.6);
}
.breadcrumbs__link{color:var(--ink-500)}
.breadcrumbs__link:hover{color:var(--inkgold-600);text-decoration:underline;text-underline-offset:4px}
.breadcrumbs__current{color:var(--ink-900)}

/* 卡片 */
.card{
  background:var(--paper-000);
  border:1px solid rgba(11,27,46,.1);
  border-radius:var(--radius-lg);
  padding:clamp(20px,2.6vw,32px);
}
.card--panel{
  background:var(--ink-700);
  border-color:var(--hairline-dark);
  color:var(--paper-100);
}
.card__head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:10px 16px;
  padding-bottom:12px;
  margin-bottom:16px;
  border-bottom:1px solid rgba(11,27,46,.1);
}
.card--panel .card__head{border-bottom-color:var(--hairline-dark)}
.card__title{font-size:20px}
.card--panel .card__title,.card--panel h3{color:var(--paper-100)}
.card__body{font-size:16px;line-height:1.8;color:var(--ink-500)}
.card--panel .card__body{color:rgba(245,240,230,.78)}

/* 价格数字 */
.price-figure{
  display:flex;
  align-items:baseline;
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(30px,4.4vw,46px);
  line-height:1.1;
  letter-spacing:-.01em;
  color:var(--gold-500);
}
.price-figure small{
  margin-left:8px;
  font-size:.36em;
  letter-spacing:.1em;
  color:var(--slate-400);
}

/* 徽标 */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  border:1px solid currentColor;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  white-space:nowrap;
}
.badge--celadon{color:var(--celadon-600)}
.badge--gold{color:var(--inkgold-600)}
.badge--seal{color:var(--seal-600)}

/* 旁注 */
.note{
  padding:12px 0 12px 18px;
  border-left:3px solid var(--gold-500);
  background:linear-gradient(90deg,rgba(198,161,91,.1),rgba(198,161,91,0) 72%);
  font-size:15px;
  color:var(--ink-500);
}

/* 表格 */
.table-scroll{
  overflow-x:auto;
  border:1px solid var(--hairline);
  border-radius:var(--radius-md);
  background:var(--paper-000);
}
.table{width:100%;min-width:520px;font-size:15px}
.table caption{
  padding:14px 16px 0;
  text-align:left;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  color:var(--slate-400);
}
.table th,.table td{padding:12px 16px;text-align:left;border-bottom:1px solid rgba(11,27,46,.1)}
.table thead th{
  background:var(--ink-700);
  color:var(--paper-100);
  border-bottom:0;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  letter-spacing:.14em;
}
.table tbody tr:nth-child(even){background:var(--paper-200)}
.table tbody tr:last-child td{border-bottom:0}
.table td.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;text-align:right}

/* 折叠问答 */
.faq{border-top:1px solid var(--hairline)}
.faq details{border-bottom:1px solid var(--hairline)}
.faq summary{
  display:flex;
  align-items:baseline;
  gap:14px;
  padding:18px 0;
  cursor:pointer;
  list-style:none;
  font-family:var(--font-display);
  font-weight:700;
  font-size:17px;
  color:var(--ink-900);
  transition:color .25s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"＋";
  margin-left:auto;
  font-family:var(--font-mono);
  font-size:15px;
  color:var(--gold-500);
}
.faq details[open] summary::after{content:"－"}
.faq summary:hover{color:var(--inkgold-600)}
.faq__index{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--slate-400)}
.faq__body{
  max-width:72ch;
  padding:0 0 22px;
  font-size:16px;
  color:var(--ink-500);
}

/* 长文排版 */
.prose{max-width:72ch}
.prose p{margin-bottom:1.1em;color:var(--ink-500)}
.prose h2{font-size:clamp(22px,2.6vw,30px);margin:2em 0 .6em}
.prose h3{font-size:19px;margin:1.6em 0 .5em}
.prose ul,.prose ol{margin:0 0 1.2em}
.prose li{position:relative;padding-left:1.4em;margin-bottom:.5em;color:var(--ink-500)}
.prose li::before{content:"";position:absolute;left:0;top:.78em;width:8px;height:1px;background:var(--gold-500)}
.prose a{color:var(--inkgold-600);text-decoration:underline;text-underline-offset:4px}

/* 图片容器 */
.figure{
  position:relative;
  overflow:hidden;
  border:1px solid rgba(11,27,46,.08);
  border-radius:var(--radius-lg);
  background:var(--paper-200);
  aspect-ratio:16/10;
}
.figure img{width:100%;height:100%;object-fit:cover}
.figure--wide{aspect-ratio:21/9}
.figure--tall{aspect-ratio:4/5}
.figure--square{aspect-ratio:1/1}
.figure--empty::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(11,27,46,.07) 0 2px,transparent 2px 14px);
}
.figure--empty::before{
  content:attr(data-figure);
  position:absolute;
  top:50%;
  left:50%;
  width:80%;
  transform:translate(-50%,-50%);
  text-align:center;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--slate-400);
  z-index:1;
}
.figure__caption{
  position:absolute;
  left:16px;
  right:16px;
  bottom:16px;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  background:rgba(11,27,46,.64);
  -webkit-backdrop-filter:blur(4px);
  backdrop-filter:blur(4px);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--paper-100);
}

/* ---------- 进入动效 ---------- */
.has-js [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
.has-js [data-reveal].is-visible{opacity:1;transform:none}
.has-js [data-reveal] .rule{transform:scaleX(0);transform-origin:left;transition:transform .7s var(--ease) .08s}
.has-js [data-reveal].is-visible .rule{transform:scaleX(1)}

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