:root{
  --kiwi-flesh:#62C24E;
  --kiwi-flesh-deep:#4FA93D;
  --kiwi-deep:#1F6B34;
  --kiwi-lime:#D9F45A;
  --kiwi-lime-soft:#E8F89C;
  --kiwi-seed:#1B231A;
  --kiwi-core:#F6EDB0;
  --kiwi-mist:#E7F0E3;
  --kiwi-canvas:#F8FBF5;
  --kiwi-sage:#9FB39E;
  --kiwi-forest:#0F3D23;
  --kiwi-amber:#D8892B;
  --kiwi-teal:#3D8F8A;
  --kiwi-line:#DBE6D6;
  --kiwi-ink-soft:#3D4C3B;
  --font-display:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
  --font-body:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
  --font-mono:'IBM Plex Mono','Roboto Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,'Courier New',monospace;
  --shell-w:1240px;
  --gap:28px;
  --cut:22px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--kiwi-canvas);
  color:var(--kiwi-seed);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.8;
  letter-spacing:.01em;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;}
[id]{scroll-margin-top:96px;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.15;
  letter-spacing:-.02em;
}
a{color:var(--kiwi-deep);}
button{font-family:inherit;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.data-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:700;letter-spacing:-.01em;}

:focus-visible{outline:3px solid var(--kiwi-deep);outline-offset:2px;}
.site-foot :focus-visible{outline-color:var(--kiwi-lime);}

.skip-link{
  position:absolute;
  left:16px;
  top:-72px;
  z-index:120;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 18px;
  background:var(--kiwi-forest);
  color:var(--kiwi-lime);
  font-weight:700;
  text-decoration:none;
  border-radius:2px;
  transition:top .18s ease;
}
.skip-link:focus{top:12px;}

/* ---------- header ---------- */
.site-head{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(248,251,245,.94);
  backdrop-filter:blur(12px) saturate(1.15);
  border-bottom:1px solid var(--kiwi-line);
}
.head-shell{
  display:flex;
  align-items:center;
  gap:16px;
  width:100%;
  max-width:var(--shell-w);
  margin-inline:auto;
  padding:0 24px;
  min-height:66px;
  flex-wrap:nowrap;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  color:inherit;
  flex:0 0 auto;
}
.brand__seed{
  position:relative;
  width:38px;
  height:38px;
  flex:0 0 auto;
  border-radius:50%;
  background:radial-gradient(circle at 32% 28%,var(--kiwi-core) 0%,var(--kiwi-lime-soft) 34%,var(--kiwi-flesh) 82%);
  box-shadow:inset 0 0 0 1px rgba(27,35,26,.16);
  transition:transform .28s ease;
}
.brand__seed i{
  position:absolute;
  top:50%;
  left:50%;
  width:3.5px;
  height:5.5px;
  margin:-2.75px 0 0 -1.75px;
  border-radius:50%;
  background:var(--kiwi-seed);
  opacity:.82;
}
.brand__seed i:nth-child(1){transform:rotate(0deg) translateY(-9px);}
.brand__seed i:nth-child(2){transform:rotate(72deg) translateY(-9px);}
.brand__seed i:nth-child(3){transform:rotate(144deg) translateY(-9px);}
.brand__seed i:nth-child(4){transform:rotate(216deg) translateY(-9px);}
.brand__seed i:nth-child(5){transform:rotate(288deg) translateY(-9px);}
.brand:hover .brand__seed{transform:rotate(36deg);}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__name{
  font-family:var(--font-display);
  font-weight:800;
  font-size:17px;
  letter-spacing:-.01em;
  color:var(--kiwi-seed);
}
.brand__tag{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.1em;
  color:#6E826C;
  text-transform:uppercase;
}
.brand--foot .brand__name{color:#F1FAEB;font-size:18px;}
.brand--foot .brand__tag{color:#9FBB99;}

.head-status{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:30px;
  padding:0 12px;
  background:var(--kiwi-mist);
  border-radius:2px;
  font-family:var(--font-mono);
  font-size:11.5px;
  color:#5F735C;
  letter-spacing:.04em;
  flex:0 0 auto;
}
.head-status__dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--kiwi-flesh);
  box-shadow:0 0 0 3px rgba(98,194,78,.2);
  animation:kiwi-pulse 2.6s ease-in-out infinite;
}
@keyframes kiwi-pulse{50%{box-shadow:0 0 0 6px rgba(98,194,78,.06);}}
.head-status__label{color:#6E826C;}
.head-status__value{
  font-family:var(--font-body);
  font-size:12.5px;
  font-weight:700;
  color:var(--kiwi-deep);
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  min-height:44px;
  padding:0 13px;
  background:var(--kiwi-mist);
  border:1px solid #CFDDCA;
  border-radius:2px;
  color:var(--kiwi-seed);
  font-size:14px;
  font-weight:700;
  cursor:pointer;
}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:3px;width:16px;}
.nav-toggle__bars i{display:block;height:2px;width:100%;background:var(--kiwi-seed);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-5px) rotate(-45deg);}
.nav-toggle__text{letter-spacing:.04em;}

.primary-nav{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
  min-width:0;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
  list-style:none;
  padding:0;
  flex-wrap:nowrap;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  min-height:44px;
  padding:0 12px;
  color:var(--kiwi-seed);
  font-size:15px;
  font-weight:500;
  text-decoration:none;
  border-radius:2px;
  white-space:nowrap;
  transition:background-color .18s ease,color .18s ease;
}
.nav-link__idx{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.06em;
  color:var(--kiwi-sage);
}
.nav-link:hover{background:var(--kiwi-mist);}
.nav-link:focus-visible{outline:none;box-shadow:inset 0 0 0 2px var(--kiwi-deep);}
.nav-link[aria-current="page"]{
  background:var(--kiwi-lime);
  color:var(--kiwi-seed);
  font-weight:700;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%);
}
.nav-link[aria-current="page"] .nav-link__idx{color:var(--kiwi-deep);}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 16px;
  background:var(--kiwi-lime);
  color:var(--kiwi-seed);
  font-size:14px;
  font-weight:700;
  text-decoration:none;
  border-radius:2px;
  white-space:nowrap;
  transition:background-color .18s ease;
}
.nav-cta::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--kiwi-seed);}
.nav-cta:hover{background:#CFEC4B;}

.head-progress{
  position:relative;
  height:3px;
  overflow:hidden;
  background:linear-gradient(90deg,rgba(98,194,78,.16),rgba(217,244,90,.16));
}
.head-progress__bar{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--kiwi-flesh),var(--kiwi-lime));
  transition:width .12s linear;
}

/* ---------- footer ---------- */
.site-foot{
  position:relative;
  margin-top:clamp(48px,8vw,96px);
  background:var(--kiwi-forest);
  color:#DCEBD8;
}
.site-foot::before{
  content:"";
  display:block;
  height:6px;
  background:linear-gradient(90deg,var(--kiwi-flesh),var(--kiwi-lime) 55%,var(--kiwi-core));
}
.foot-shell{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,.7fr) minmax(0,.7fr) minmax(0,1.15fr);
  gap:34px 28px;
  width:100%;
  max-width:var(--shell-w);
  margin-inline:auto;
  padding:clamp(36px,5vw,62px) 24px clamp(22px,3vw,34px);
}
.foot-brand{min-width:0;}
.foot-pitch{
  margin:16px 0 0;
  max-width:24em;
  font-size:15px;
  line-height:1.8;
  color:#C6DCC0;
}
.foot-note{
  margin:10px 0 0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:#93B08D;
}
.foot-col__title{
  margin:0 0 12px;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--kiwi-lime);
  text-transform:uppercase;
}
.foot-list{
  list-style:none;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.foot-list a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  color:#DCEBD8;
  font-size:15px;
  text-decoration:none;
  transition:color .18s ease;
}
.foot-list a:hover{color:var(--kiwi-lime);}
.foot-list--plain li{
  display:grid;
  gap:2px;
  padding:9px 0;
  border-bottom:1px dashed rgba(220,235,216,.16);
}
.foot-list--plain li:last-child{border-bottom:0;}
.foot-label{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.14em;
  color:#8FAC89;
  text-transform:uppercase;
}
.foot-value{
  font-size:14.5px;
  line-height:1.7;
  color:#EAF4E6;
  word-break:break-word;
}
.foot-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 22px;
  width:100%;
  max-width:var(--shell-w);
  margin-inline:auto;
  padding:16px 24px 30px;
  border-top:1px solid rgba(220,235,216,.14);
  font-size:13px;
  color:#9FBB99;
}
.foot-copy{margin:0;}
.foot-icp{font-family:var(--font-mono);letter-spacing:.02em;}
.foot-base__note{margin-left:auto;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;}

.back-top{
  position:fixed;
  right:18px;
  bottom:18px;
  z-index:70;
  display:grid;
  place-items:center;
  width:52px;
  height:52px;
  padding:0;
  border:0;
  border-radius:50%;
  background:var(--kiwi-flesh);
  color:#0B2413;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  box-shadow:0 14px 28px -14px rgba(15,61,35,.7);
  transition:opacity .24s ease,transform .24s ease,visibility .24s;
}
.back-top::before{
  content:"";
  width:12px;
  height:12px;
  border-left:2px solid currentColor;
  border-top:2px solid currentColor;
  transform:rotate(45deg) translate(2px,2px);
}
.back-top.is-visible{opacity:1;visibility:visible;transform:none;}
.back-top:hover{background:var(--kiwi-lime);}

/* ---------- shared layout ---------- */
.shell{
  width:100%;
  max-width:var(--shell-w);
  margin-inline:auto;
  padding-inline:24px;
}
.stack{
  display:grid;
  gap:var(--gap);
}
.grid{
  display:grid;
  gap:var(--gap);
  align-items:start;
}
.grid--asym{grid-template-columns:minmax(0,5fr) minmax(0,7fr);}
.grid--split{grid-template-columns:minmax(0,4fr) minmax(0,8fr);}

.panel{
  position:relative;
  padding:clamp(20px,3vw,34px);
  background:#fff;
  border:1px solid var(--kiwi-line);
  border-radius:3px;
}
.panel--cut{
  border:0;
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
  box-shadow:0 22px 48px -36px rgba(15,61,35,.55);
}
.panel--mist{background:var(--kiwi-mist);border-color:#D6E5D1;}
.panel--forest{background:var(--kiwi-forest);color:#E6F2E0;border-color:var(--kiwi-forest);}
.panel--forest a{color:var(--kiwi-lime);}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:10px 14px;
  margin:0 0 18px;
}
.section-index{
  display:inline-flex;
  align-items:center;
  min-height:26px;
  padding:2px 9px;
  background:var(--kiwi-core);
  color:#5A4C12;
  border-radius:2px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.14em;
}
.section-title{
  font-size:clamp(22px,2.6vw,32px);
  color:var(--kiwi-seed);
}
.section-lead{
  flex:1 1 100%;
  max-width:44em;
  font-size:16px;
  line-height:1.8;
  color:var(--kiwi-ink-soft);
}

.seed-dot{
  display:inline-block;
  width:9px;
  height:9px;
  flex:0 0 auto;
  border-radius:50%;
  background:var(--kiwi-seed);
}
.seed-dot--lime{background:var(--kiwi-lime);}
.seed-dot--teal{background:var(--kiwi-teal);}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:26px;
  padding:3px 10px;
  background:var(--kiwi-mist);
  color:var(--kiwi-deep);
  border-radius:2px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.04em;
}
.tag--lime{background:var(--kiwi-lime);color:var(--kiwi-seed);}
.tag--core{background:var(--kiwi-core);color:#5A4C12;}
.tag--teal{background:var(--kiwi-teal);color:#F2FBFA;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:46px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:2px;
  font-size:16px;
  font-weight:700;
  text-decoration:none;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,transform .16s ease;
}
.btn--primary{background:var(--kiwi-flesh);color:#08230F;}
.btn--primary:hover{background:var(--kiwi-flesh-deep);}
.btn--lime{background:var(--kiwi-lime);color:var(--kiwi-seed);}
.btn--lime:hover{background:#CFEC4B;}
.btn--ghost{background:transparent;color:var(--kiwi-deep);border-color:var(--kiwi-sage);}
.btn--ghost:hover{background:var(--kiwi-mist);}
.btn:active{transform:translateY(1px);}

.breadcrumb{
  padding:16px 0 4px;
  font-size:13px;
  color:#5E705C;
}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
  padding:0;
}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li:not(:last-child)::after{content:"/";color:var(--kiwi-sage);}
.breadcrumb a{
  color:var(--kiwi-deep);
  text-decoration:none;
  border-bottom:1px solid rgba(31,107,52,.28);
}
.breadcrumb a:hover{border-bottom-color:var(--kiwi-deep);}
.breadcrumb [aria-current="page"]{color:var(--kiwi-seed);font-weight:700;}

.prose{
  max-width:44em;
  font-size:17px;
  line-height:1.8;
  color:#2C3A2A;
}
.prose p{margin:0 0 1.05em;}
.prose p:last-child{margin-bottom:0;}
.prose h3{
  margin:1.8em 0 .6em;
  font-size:clamp(19px,2vw,23px);
  color:var(--kiwi-seed);
}
.prose ul,.prose ol{padding-left:1.3em;margin:0 0 1.05em;}
.prose li{margin:.2em 0;}

.img-frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:4 / 3;
  border-radius:3px;
  background:linear-gradient(135deg,var(--kiwi-mist) 0%,var(--kiwi-core) 52%,#CDE5C6 100%);
}
.img-frame img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.img-frame--wide{aspect-ratio:16 / 9;}
.img-frame--tall{aspect-ratio:3 / 4;}
.img-frame--cut{
  clip-path:polygon(0 0,calc(100% - 26px) 0,100% 26px,100% 100%,0 100%);
}
.img-frame__caption{
  position:absolute;
  inset:auto 0 0 0;
  padding:12px 14px;
  background:linear-gradient(transparent,rgba(15,61,35,.82));
  color:#F2FBEA;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.04em;
}

.section-nav{
  display:flex;
  flex-direction:column;
  gap:2px;
  font-size:14px;
}
.section-nav__link{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  padding:0 10px;
  color:#3C4C3A;
  text-decoration:none;
  border-left:2px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.section-nav__link:hover{background:rgba(231,240,227,.7);}
.section-nav__link[aria-current="true"]{
  border-left-color:var(--kiwi-flesh);
  background:var(--kiwi-mist);
  color:var(--kiwi-deep);
  font-weight:700;
}

.divider-slant{
  height:clamp(26px,4.5vw,58px);
  background:linear-gradient(102deg,var(--kiwi-mist) 0 46%,transparent 46% 100%);
}

.has-js [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s ease,transform .5s ease;
}
.has-js [data-reveal].is-in{
  opacity:1;
  transform:none;
}

@media (max-width:1080px){
  .head-shell{
    flex-wrap:wrap;
    padding:0 18px;
    min-height:58px;
  }
  .head-status{display:none;}
  .primary-nav{
    order:3;
    flex:1 1 100%;
    margin-left:0;
    padding-bottom:6px;
    overflow-x:auto;
    scrollbar-width:thin;
  }
  .nav-list{flex-wrap:nowrap;}
  .nav-cta{margin-left:8px;}
  .foot-shell{grid-template-columns:minmax(0,1fr) minmax(0,1fr);}
}

@media (max-width:820px){
  body{font-size:16px;}
  .head-shell{padding:0 16px;min-height:60px;gap:10px;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .primary-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    order:0;
    display:block;
    margin:0;
    padding:14px 16px 20px;
    background:var(--kiwi-forest);
    color:#E9F3E4;
    max-height:calc(100vh - 64px);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-8px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s;
    clip-path:polygon(0 0,100% 0,100% calc(100% - 24px),calc(100% - 24px) 100%,0 100%);
  }
  .site-head[data-open] .primary-nav{
    opacity:1;
    visibility:visible;
    transform:none;
  }
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    overflow:visible;
  }
  .nav-link{
    width:100%;
    min-height:48px;
    padding:0 12px;
    color:#E9F3E4;
    font-size:16px;
    border-bottom:1px solid rgba(233,243,228,.12);
  }
  .nav-link__idx{color:var(--kiwi-lime);opacity:.8;}
  .nav-link:hover{background:rgba(217,244,90,.12);}
  .nav-link:focus-visible{box-shadow:inset 0 0 0 2px var(--kiwi-lime);}
  .nav-link[aria-current="page"]{
    background:var(--kiwi-lime);
    color:var(--kiwi-forest);
    clip-path:none;
  }
  .nav-link[aria-current="page"] .nav-link__idx{color:var(--kiwi-deep);opacity:.7;}
  .nav-cta{
    width:100%;
    margin:16px 0 0;
    min-height:48px;
    font-size:15px;
  }
  .shell{padding-inline:16px;}
  .grid--asym,.grid--split{grid-template-columns:1fr;}
  .foot-shell{
    grid-template-columns:1fr;
    gap:26px;
    padding:34px 16px 24px;
  }
  .foot-base{
    padding:16px 16px 26px;
    gap:6px 16px;
  }
  .foot-base__note{margin-left:0;width:100%;}
  .foot-pitch{max-width:none;}
  .back-top{right:14px;bottom:14px;width:48px;height:48px;}
  .panel--cut,.img-frame--cut{clip-path:none;}
}

@media (max-width:420px){
  .brand__seed{width:34px;height:34px;}
  .brand__name{font-size:16px;}
  .brand__tag{font-size:9.5px;}
}

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