*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--topbar-h) + 18px)}
body,h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;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;padding:0;cursor:pointer}
input,textarea,select{font:inherit}

:root{
  --ink:#0E3B32;
  --ink-soft:#164A3F;
  --text:#1E2E29;
  --paper:#F6F1E7;
  --paper-2:#FBF8F1;
  --stone:#6C736F;
  --line:rgba(14,59,50,.16);
  --line-soft:rgba(14,59,50,.08);
  --spring:#A8D34E;
  --summer:#F0552D;
  --electric:#2D7DF6;
  --autumn:#D99A2B;
  --brown:#4A2E22;
  --winter:#9CC9DD;
  --silver:#C9D2D4;
  --moss:#5B7A5A;
  --rail-w:248px;
  --rail-mini:84px;
  --topbar-h:64px;
  --dock-h:62px;
  --radius:2px;
  --shadow:0 1px 0 rgba(14,59,50,.04),0 18px 34px -26px rgba(14,59,50,.6);
  --font-head:"Noto Sans SC Condensed","HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-num:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}

body{
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.78;
  letter-spacing:.012em;
  color:var(--text);
  background-color:var(--paper);
  background-image:
    radial-gradient(1100px 520px at 92% -8%,rgba(168,211,78,.14),transparent 64%),
    radial-gradient(820px 460px at -6% 26%,rgba(156,201,221,.16),transparent 62%);
  min-height:100vh;
  padding-top:var(--topbar-h);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body.is-nav-open{overflow:hidden}

h1,h2,h3,h4{font-family:var(--font-head);font-weight:900;letter-spacing:-.025em;line-height:1.08;color:var(--ink);text-wrap:balance}
h1{font-size:clamp(2.6rem,7vw,5.6rem)}
h2{font-size:clamp(1.75rem,3.6vw,2.9rem)}
h3{font-size:clamp(1.15rem,1.8vw,1.5rem);letter-spacing:-.01em;line-height:1.25}
p{text-wrap:pretty}

:focus-visible{outline:2px solid var(--electric);outline-offset:3px;border-radius:1px}

.skip-link{
  position:fixed;top:10px;left:10px;z-index:300;
  padding:11px 18px;background:var(--ink);color:var(--paper-2);
  border-radius:var(--radius);font-size:13px;letter-spacing:.08em;
  transform:translateY(-180%);transition:transform .2s var(--ease);
}
.skip-link:focus-visible{transform:none}

/* ---------- 通用布局与组件 ---------- */
.wrap{width:100%;max-width:1180px;margin-inline:auto;padding-inline:clamp(16px,4vw,40px)}
.section{padding-block:clamp(40px,6vw,88px)}
#main-content{display:block}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-num);font-size:11.5px;letter-spacing:.2em;color:var(--moss);
}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor}

.display{font-family:var(--font-head);font-weight:900;font-size:clamp(3rem,9vw,7rem);line-height:.94;letter-spacing:-.04em;color:var(--ink)}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-weight:600;letter-spacing:-.01em}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;border:1px solid var(--line);border-radius:var(--radius);
  font-size:11.5px;letter-spacing:.1em;color:var(--stone);background:rgba(251,248,241,.72);
}

.season-chip{
  --chip:var(--moss);
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 9px;border:1px solid var(--line);border-radius:var(--radius);
  font-size:11px;letter-spacing:.1em;line-height:1;color:var(--text);
  background:rgba(251,248,241,.72);
}
.season-chip::before{content:"";width:7px;height:7px;border-radius:1px;background:var(--chip);flex:none}
.season-chip--spring{--chip:var(--spring)}
.season-chip--summer{--chip:var(--summer)}
.season-chip--autumn{--chip:var(--autumn)}
.season-chip--winter{--chip:var(--winter)}
.rail .season-chip,.site-footer .season-chip{
  border-color:rgba(251,248,241,.22);color:rgba(251,248,241,.75);background:transparent;
}

.surface{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:clamp(16px,2.4vw,26px);
}
.surface--flush{padding:0;overflow:hidden}

.divider{height:1px;background:var(--line);border:0;margin-block:clamp(20px,3vw,34px)}

.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;color:var(--stone)}
.crumbs a{color:var(--moss);border-bottom:1px solid transparent}
.crumbs a:hover{border-bottom-color:currentColor}
.crumbs__sep{opacity:.5}

.prose{max-width:68ch}
.prose p+p{margin-top:1em}
.prose h3{margin-top:1.8em;margin-bottom:.5em}
.prose ul{display:grid;gap:.5em}
.prose ul li{position:relative;padding-left:1.15em}
.prose ul li::before{content:"";position:absolute;left:0;top:.78em;width:6px;height:6px;background:var(--spring);border-radius:1px}
.prose a{color:var(--moss);border-bottom:1px solid var(--line)}

.grid-12{display:grid;gap:clamp(16px,2.2vw,26px);grid-template-columns:1fr}
@media (min-width:900px){
  .grid-12{grid-template-columns:repeat(12,1fr)}
  .span-3{grid-column:span 3}
  .span-4{grid-column:span 4}
  .span-5{grid-column:span 5}
  .span-6{grid-column:span 6}
  .span-7{grid-column:span 7}
  .span-8{grid-column:span 8}
}

/* 图片容器基座 */
.media{
  position:relative;display:block;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius);
  aspect-ratio:16/10;
  background:
    linear-gradient(135deg,rgba(168,211,78,.18),transparent 42%),
    linear-gradient(315deg,rgba(156,201,221,.22),transparent 46%),
    repeating-linear-gradient(90deg,rgba(14,59,50,.06) 0 1px,transparent 1px 22px),
    var(--paper-2);
  box-shadow:var(--shadow);
}
.media>img{width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media__scrim{position:absolute;inset:auto 0 0 0;height:58%;background:linear-gradient(to top,rgba(14,59,50,.8),transparent);pointer-events:none}
.media__cap{position:absolute;left:0;bottom:0;padding:14px 16px;color:var(--paper-2);font-size:12.5px;letter-spacing:.06em;z-index:2}

/* 表格 */
.table{width:100%;border-collapse:collapse;font-size:14.5px}
.table caption{text-align:left;font-size:11.5px;letter-spacing:.14em;color:var(--stone);padding-bottom:8px}
.table th,.table td{padding:11px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.table thead th{
  background:var(--ink);color:var(--paper-2);border-bottom:0;
  font-family:var(--font-num);font-size:11px;letter-spacing:.14em;font-weight:600;
}
.table tbody th{color:var(--ink);font-weight:600}
.table td.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.table--zebra tbody tr:nth-child(even){background:rgba(251,248,241,.62)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 16px;border-radius:var(--radius);border:1px solid transparent;
  font-family:var(--font-body);font-size:14px;font-weight:600;letter-spacing:.05em;line-height:1.2;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .18s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn--solid{background:var(--summer);color:#FFF9F3;box-shadow:var(--shadow)}
.btn--solid:hover{background:#D8461F}
.btn--ink{background:var(--ink);color:var(--paper-2)}
.btn--ink:hover{background:var(--ink-soft)}
.btn--spring{background:var(--spring);color:#0E3B32;font-weight:700}
.btn--spring:hover{background:#BCE06B}
.btn--outline{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--outline:hover{background:rgba(14,59,50,.07)}
.btn--sm{padding:7px 12px;font-size:12.5px;letter-spacing:.08em}
.btn--block{width:100%}

/* ---------- 头部 ---------- */
.site-header{position:relative;z-index:60}

.site-header::after{
  content:"";position:fixed;inset:0;z-index:70;
  background:rgba(9,32,27,.5);
  opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease);
}
.site-header[data-open="true"]::after{opacity:1;pointer-events:auto}

.rail{
  position:fixed;top:0;bottom:0;left:0;
  width:min(88vw,330px);
  display:flex;flex-direction:column;
  background-color:var(--ink);
  background-image:
    linear-gradient(180deg,rgba(168,211,78,.13),transparent 30%),
    linear-gradient(0deg,rgba(156,201,221,.13),transparent 24%);
  color:rgba(251,248,241,.86);
  border-right:1px solid rgba(251,248,241,.16);
  transform:translateX(-102%);
  transition:transform .36s var(--ease);
  z-index:95;
  overflow-y:auto;
  overscroll-behavior:contain;
  box-shadow:24px 0 60px -40px rgba(0,0,0,.7);
}
.site-header[data-open="true"] .rail{transform:translateX(0)}

.rail__brand{
  flex:none;display:flex;align-items:center;
  min-height:var(--topbar-h);padding:10px 18px;
  border-bottom:1px solid rgba(251,248,241,.14);
  background:rgba(6,26,22,.35);
}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand__mark{
  flex:none;display:grid;place-items:center;
  padding:5px 7px;border:1px solid rgba(168,211,78,.5);border-radius:var(--radius);
  font-family:var(--font-num);font-size:10.5px;letter-spacing:.08em;line-height:1;color:var(--spring);
  white-space:nowrap;
}
.brand__text{display:flex;flex-direction:column;min-width:0}
.brand__name{font-family:var(--font-head);font-weight:900;font-size:17px;line-height:1.2;letter-spacing:.02em;color:var(--paper-2)}
.brand__tagline{margin-top:3px;font-size:11px;letter-spacing:.14em;color:rgba(251,248,241,.55);white-space:nowrap}

.rail__nav{flex:1 0 auto;display:flex;flex-direction:column;padding-top:6px}
.rail__navlabel{
  padding:14px 18px 8px;
  font-family:var(--font-num);font-size:10.5px;letter-spacing:.24em;
  color:rgba(251,248,241,.42);
}
.rail__list{display:flex;flex-direction:column}
.rail__item{flex:none}
.rail__link{
  position:relative;
  display:grid;grid-template-columns:26px 1fr;align-items:center;gap:10px;
  padding:13px 18px;
  border-top:1px solid rgba(251,248,241,.09);
  font-size:15.5px;font-weight:500;letter-spacing:.04em;
  color:rgba(251,248,241,.78);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.rail__item:last-child .rail__link{border-bottom:1px solid rgba(251,248,241,.09)}
.rail__link::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--spring);transform:scaleY(0);transform-origin:50% 0;
  transition:transform .26s var(--ease);
}
.rail__link:hover{color:var(--paper-2);background:rgba(251,248,241,.07)}
.rail__link:hover::before{transform:scaleY(1)}
.rail__idx{font-family:var(--font-num);font-size:10.5px;letter-spacing:.06em;color:rgba(251,248,241,.42)}
.rail__label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rail__link[aria-current="page"]{background:var(--spring);color:#12332B;font-weight:700}
.rail__link[aria-current="page"] .rail__idx{color:rgba(18,51,43,.62)}

.rail__foot{
  margin-top:auto;flex:none;
  display:flex;flex-direction:column;gap:12px;
  padding:16px 18px calc(18px + env(safe-area-inset-bottom,0px));
  border-top:1px solid rgba(251,248,241,.14);
  background:rgba(6,26,22,.32);
}
.rail__seasons{display:flex;flex-wrap:wrap;gap:6px}
.rail__cta{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 13px;border-radius:var(--radius);
  background:var(--spring);color:#0E3B32;
  font-size:14px;font-weight:700;letter-spacing:.05em;
  transition:background-color .2s var(--ease);
}
.rail__cta::after{content:"→";font-family:var(--font-num);font-size:14px}
.rail__cta:hover{background:#BCE06B}
.rail__fold{
  display:flex;align-items:center;gap:9px;
  padding-top:11px;border-top:1px dashed rgba(251,248,241,.2);
  font-size:11px;letter-spacing:.16em;color:rgba(251,248,241,.55);
  transition:color .2s var(--ease);
}
.rail__fold:hover{color:var(--paper-2)}
.rail__fold-bar{position:relative;display:block;width:16px;height:8px;border:1px solid currentColor;border-radius:1px}
.rail__fold-bar::after{content:"";position:absolute;top:0;bottom:0;left:5px;width:1px;background:currentColor}
@media (max-width:1023px){.rail__fold{display:none}}

.topbar{
  position:fixed;top:0;left:0;right:0;
  height:var(--topbar-h);z-index:75;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-inline:clamp(12px,3vw,22px);
  background:rgba(246,241,231,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:left .32s var(--ease);
}
.topbar::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,var(--spring) 0 25%,var(--summer) 25% 50%,var(--autumn) 50% 75%,var(--winter) 75% 100%);
  opacity:.6;
}
.topbar__left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar__dot{flex:none;width:8px;height:8px;border-radius:1px;background:var(--summer);box-shadow:0 0 0 4px rgba(240,85,45,.14)}
.topbar__mobilebrand{font-family:var(--font-head);font-weight:900;font-size:16px;letter-spacing:.02em;color:var(--ink);white-space:nowrap}
.topbar__note{display:none;font-size:11.5px;letter-spacing:.16em;color:var(--stone);white-space:nowrap}
.topbar__right{display:flex;align-items:center;gap:8px;flex:none}
.topbar__cta{flex:none}

.nav-toggle{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 11px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--paper-2);color:var(--ink);
  font-size:12px;font-weight:600;letter-spacing:.1em;
  transition:border-color .2s var(--ease);
}
.nav-toggle:hover{border-color:rgba(14,59,50,.42)}
.nav-toggle__box{display:grid;gap:3px;width:15px}
.nav-toggle__box span{display:block;height:2px;border-radius:1px;background:currentColor;transition:transform .24s var(--ease),opacity .2s var(--ease)}
.site-header[data-open="true"] .nav-toggle__box span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle__box span:nth-child(2){opacity:0}
.site-header[data-open="true"] .nav-toggle__box span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.nav-toggle__text{font-size:12px}

.dock{
  position:fixed;left:0;right:0;bottom:0;z-index:66;
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--ink);
  border-top:1px solid rgba(251,248,241,.18);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
.dock__link{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  min-height:var(--dock-h);padding:8px 4px;
  border-right:1px solid rgba(251,248,241,.12);
  font-size:11px;letter-spacing:.05em;line-height:1.2;
  color:rgba(251,248,241,.64);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.dock__link:last-child{border-right:0}
.dock__link:hover{color:var(--paper-2);background:rgba(251,248,241,.08)}
.dock__link[aria-current="page"]{color:var(--spring);background:rgba(168,211,78,.12)}
.dock__idx{font-family:var(--font-num);font-size:9.5px;letter-spacing:.08em;color:rgba(168,211,78,.75)}
.dock__label{white-space:nowrap}

@media (min-width:1024px){
  body{padding-left:var(--rail-w);transition:padding-left .32s var(--ease)}
  .topbar{left:var(--rail-w)}
  .nav-toggle{display:none}
  .dock{display:none}
  .site-header::after{display:none}
  .topbar__mobilebrand{display:none}
  .topbar__note{display:inline}
  .rail{
    width:var(--rail-w);
    transform:none;
    z-index:70;
    box-shadow:none;
    transition:width .32s var(--ease);
  }
  .rail::-webkit-scrollbar{width:6px}
  .rail::-webkit-scrollbar-thumb{background:rgba(251,248,241,.18);border-radius:3px}

  html[data-rail="mini"]{--rail-w:var(--rail-mini)}
  html[data-rail="mini"] .brand__text,
  html[data-rail="mini"] .rail__navlabel,
  html[data-rail="mini"] .rail__idx,
  html[data-rail="mini"] .rail__seasons,
  html[data-rail="mini"] .rail__cta,
  html[data-rail="mini"] .rail__fold-text{display:none}
  html[data-rail="mini"] .rail__brand{padding-inline:8px;justify-content:center}
  html[data-rail="mini"] .brand__mark{font-size:0;padding:8px 6px}
  html[data-rail="mini"] .brand__mark::after{content:"四季";font-size:11px;letter-spacing:.06em}
  html[data-rail="mini"] .rail__link{grid-template-columns:1fr;justify-items:center;padding:12px 6px}
  html[data-rail="mini"] .rail__label{white-space:normal;text-align:center;font-size:12px;line-height:1.3;letter-spacing:0}
  html[data-rail="mini"] .rail__foot{padding-inline:8px;align-items:center}
  html[data-rail="mini"] .rail__fold{justify-content:center;padding-top:10px}
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,7vw,96px);
  padding-bottom:calc(var(--dock-h) + 10px);
  background-color:var(--ink);
  background-image:
    radial-gradient(720px 320px at 84% 4%,rgba(168,211,78,.16),transparent 62%),
    radial-gradient(660px 300px at 6% 86%,rgba(156,201,221,.14),transparent 60%);
  color:rgba(251,248,241,.78);
  border-top:1px solid rgba(251,248,241,.16);
  overflow:hidden;
}
.footer__seasons{display:grid;grid-template-columns:repeat(4,1fr);height:6px}
.footer__season{display:block}
.footer__season--spring{background:var(--spring)}
.footer__season--summer{background:var(--summer)}
.footer__season--autumn{background:var(--autumn)}
.footer__season--winter{background:var(--winter)}

.footer__inner{
  width:100%;max-width:1180px;margin-inline:auto;
  padding:clamp(32px,5vw,60px) clamp(16px,4vw,40px) clamp(28px,4vw,44px);
  display:grid;gap:clamp(24px,3vw,40px);
  grid-template-columns:1fr;
}
.footer__brand{min-width:0}
.footer__mark{
  display:inline-block;padding:4px 7px;line-height:1;
  border:1px solid rgba(168,211,78,.5);border-radius:var(--radius);
  font-family:var(--font-num);font-size:10.5px;letter-spacing:.1em;color:var(--spring);
}
.footer__name{
  margin-top:12px;
  font-family:var(--font-head);font-weight:900;font-size:clamp(1.4rem,2.4vw,1.9rem);
  letter-spacing:-.01em;line-height:1.12;color:var(--paper-2);
}
.footer__intro{margin-top:12px;max-width:34ch;font-size:14px;line-height:1.85;color:rgba(251,248,241,.66)}
.footer__brand .btn{margin-top:18px}

.footer__title{
  font-family:var(--font-num);font-size:11px;font-weight:600;letter-spacing:.22em;
  color:rgba(251,248,241,.5);
}
.footer__list{margin-top:14px;display:grid;gap:9px}
.footer__link{
  display:inline-block;font-size:14.5px;letter-spacing:.03em;
  color:rgba(251,248,241,.78);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer__link:hover{color:var(--spring);border-bottom-color:currentColor}

.footer__meta{
  margin-top:14px;display:grid;grid-template-columns:auto 1fr;gap:9px 12px;
  font-size:13px;line-height:1.62;
}
.footer__meta dt{font-family:var(--font-num);font-size:10.5px;letter-spacing:.14em;color:rgba(251,248,241,.45);padding-top:3px}
.footer__meta dd{color:rgba(251,248,241,.8);word-break:break-word}

.footer__cta{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;
  padding:9px 14px;border:1px solid rgba(168,211,78,.5);border-radius:var(--radius);
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--spring);
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.footer__cta:hover{background:var(--spring);color:#0E3B32}

.footer__bottom{border-top:1px solid rgba(251,248,241,.14)}
.footer__bottominner{
  width:100%;max-width:1180px;margin-inline:auto;
  padding:18px clamp(16px,4vw,40px) 22px;
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;
  font-size:11.5px;letter-spacing:.06em;color:rgba(251,248,241,.55);
}
.footer__legal{display:flex;flex-wrap:wrap;gap:8px 16px}
.footer__legal a{color:rgba(251,248,241,.62);border-bottom:1px solid rgba(251,248,241,.2)}
.footer__legal a:hover{color:var(--paper-2);border-bottom-color:var(--paper-2)}
.footer__copy{font-family:var(--font-num);font-size:11px;letter-spacing:.04em}
.footer__icp{font-family:var(--font-num);font-size:11px;letter-spacing:.04em;color:rgba(251,248,241,.45)}
.to-top{
  display:inline-flex;align-items:center;gap:6px;margin-left:auto;
  padding:7px 11px;border:1px solid rgba(251,248,241,.26);border-radius:var(--radius);
  font-size:11px;letter-spacing:.12em;color:rgba(251,248,241,.78);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.to-top::before{content:"↑";font-family:var(--font-num)}
.to-top:hover{border-color:var(--spring);color:var(--spring)}

@media (min-width:720px){
  .footer__inner{grid-template-columns:1.5fr 1fr 1fr}
  .footer__col--contact{grid-column:1 / -1}
}
@media (min-width:1080px){
  .footer__inner{grid-template-columns:1.6fr .9fr .9fr 1.3fr}
  .footer__col--contact{grid-column:auto}
}
@media (min-width:1024px){
  .site-footer{padding-bottom:0}
}

/* ---------- 动效 ---------- */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
[data-reveal].is-in{opacity:1;transform:none}

.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:3px;z-index:120;
  pointer-events:none;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--spring) 0 33%,var(--summer) 33% 60%,var(--autumn) 60% 80%,var(--winter) 80% 100%);
}

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