:root{
  --bg:#0B100C;
  --panel:#14211A;
  --brand:#6FBF44;
  --brand-light:#A3D766;
  --accent:#F7D51E;
  --glow:#FAE97A;
  --text:#F2F5F0;
  --muted:#8A9B87;
  --line:#2D4033;
  --font-display:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-index:"Roboto Mono","SFMono-Regular",Consolas,monospace;
  --rail-width:280px;
  --content-max:1280px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  padding-left:var(--rail-width);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg);
  background-image:linear-gradient(to right,rgba(45,64,51,.18) 1px,transparent 1px),linear-gradient(to bottom,rgba(45,64,51,.18) 1px,transparent 1px);
  background-size:56px 56px;
}
a{color:inherit;text-decoration:none}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em}
h1,h2,h3,h4{font-weight:300;line-height:1.25;margin:0 0 .5em}
button{font-family:inherit}
main{display:block;width:100%;flex:1 0 auto}
#main-content{scroll-margin-top:100px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
[hidden]{display:none !important}
.skip-link{
  position:fixed;
  left:12px;
  top:-80px;
  z-index:2000;
  display:inline-flex;
  align-items:center;
  padding:12px 18px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#0B100C;
  font-weight:700;
  cursor:pointer;
  transition:top .2s;
}
.skip-link:focus{top:12px}
.site-header{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  width:var(--rail-width);
  z-index:1000;
  background:var(--bg);
  border-right:1px solid var(--line);
}
.site-header::after{
  content:"";
  position:absolute;
  top:0;
  right:-1px;
  bottom:0;
  width:1px;
  background:linear-gradient(to bottom,transparent,var(--brand) 24%,var(--accent) 86%,transparent);
}
.site-header__inner{
  height:100%;
  display:flex;
  flex-direction:column;
  padding:28px 24px 20px;
  overflow-y:auto;
}
.header-top{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:12px;
}
.brand{
  display:flex;
  gap:12px;
  align-items:flex-start;
  color:var(--text);
  min-width:0;
}
.brand:hover .brand__name{color:var(--brand-light)}
.brand__mark{
  position:relative;
  flex:0 0 34px;
  width:34px;
  height:34px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand) 45%,var(--accent) 55%,var(--accent) 100%);
  border:1px solid var(--line);
}
.brand__mark::after{
  content:"";
  position:absolute;
  inset:5px;
  border:1px solid rgba(11,16,12,.55);
}
.brand__text{min-width:0}
.brand__name{
  display:block;
  font-size:21px;
  font-weight:700;
  letter-spacing:.04em;
  line-height:1.25;
  transition:color .2s;
}
.brand__tagline{
  display:block;
  margin-top:8px;
  font-family:var(--font-index);
  font-size:11px;
  line-height:1.6;
  color:var(--muted);
  letter-spacing:.02em;
}
.nav-toggle{
  display:none;
  appearance:none;
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--text);
  align-items:center;
  gap:8px;
  padding:8px 10px;
  cursor:pointer;
}
.nav-toggle__icon{display:flex;flex-direction:column}
.nav-toggle__bar{
  display:block;
  width:18px;
  height:2px;
  background:var(--brand);
  transition:transform .2s,opacity .2s;
}
.nav-toggle__bar + .nav-toggle__bar{margin-top:4px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle__label{font-size:12px;font-family:var(--font-index);color:var(--muted)}
.site-nav{
  display:flex;
  flex-direction:column;
  flex:1;
  min-height:0;
  margin-top:40px;
}
.site-nav__list{
  display:flex;
  flex-direction:column;
  margin:auto 0;
  padding:0;
  list-style:none;
}
.site-nav__item{list-style:none}
.site-nav__link{
  position:relative;
  display:flex;
  align-items:baseline;
  gap:14px;
  padding:12px 4px;
  border-bottom:1px solid var(--line);
  color:var(--muted);
  font-size:15px;
  letter-spacing:.06em;
  transition:color .2s;
}
.site-nav__link::before{
  content:attr(data-nav-number);
  font-family:var(--font-index);
  font-size:12px;
  color:var(--line);
  min-width:2ch;
  transition:color .2s;
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:-24px;
  top:0;
  bottom:0;
  width:3px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
  opacity:0;
  transition:opacity .2s;
}
.site-nav__link:hover,.site-nav__link[aria-current="page"]{color:var(--text)}
.site-nav__link:hover::before,.site-nav__link[aria-current="page"]::before{color:var(--brand)}
.site-nav__link[aria-current="page"]::after{opacity:1}
.site-nav__meta{margin-top:auto;padding-top:18px}
.nav-cta{display:flex;width:100%;justify-content:center;margin-bottom:20px}
.nav-quick-index{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:6px;
  margin:0;
  padding:16px 0 0;
  list-style:none;
  border-top:1px solid var(--line);
}
.nav-quick-index__item{display:flex;flex-direction:column;gap:4px;min-width:0}
.nav-quick-index__num{font-family:var(--font-index);font-size:11px;color:var(--accent)}
.nav-quick-index__label{font-size:12px;color:var(--muted);letter-spacing:.04em}
.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  height:3px;
  z-index:1500;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  transform:scaleX(0);
  transform-origin:0 50%;
  pointer-events:none;
}
.container{
  width:min(100% - 48px,var(--content-max));
  margin-inline:auto;
}
.section{
  padding-block:72px;
  border-bottom:1px solid var(--line);
}
.section--compact{padding-block:48px}
.section--alt{background:var(--panel)}
.section__header{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:16px 24px;
  margin-bottom:36px;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.section__number{
  font-family:var(--font-index);
  font-size:14px;
  color:var(--brand);
  letter-spacing:.08em;
}
.section__title{
  margin:0;
  font-size:clamp(28px,4vw,56px);
  font-weight:300;
  letter-spacing:.02em;
}
.section__intro{
  max-width:64ch;
  margin:12px 0 0;
  color:var(--muted);
  font-size:18px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  padding:12px 20px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--text);
  font-family:var(--font-body);
  font-size:15px;
  line-height:1.2;
  cursor:pointer;
  transition:border-color .2s,color .2s,background .2s;
}
.btn:hover{border-color:var(--brand);color:var(--brand)}
.btn--primary{
  border-color:transparent;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#0B100C;
  font-weight:700;
}
.btn--primary:hover{color:#0B100C;filter:brightness(1.08)}
.btn--outline{border-color:var(--brand);color:var(--brand)}
.btn--outline:hover{background:rgba(111,191,68,.08);color:var(--brand-light)}
.btn--small{padding:8px 14px;font-size:13px}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:12px;
  margin:0 0 10px;
  font-family:var(--font-index);
  font-size:13px;
  letter-spacing:.12em;
  color:var(--brand);
  text-transform:uppercase;
}
.kicker::before{content:"";width:24px;height:1px;background:var(--brand)}
.panel{
  padding:24px;
  background:var(--panel);
  border:1px solid var(--line);
}
.badge{
  display:inline-flex;
  align-items:center;
  padding:.25em .75em;
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--brand);
  font-family:var(--font-index);
  font-size:12px;
  letter-spacing:.08em;
}
.badge--accent{
  border-color:transparent;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#0B100C;
  font-weight:700;
}
.lead{
  margin:0 0 1.2em;
  font-size:20px;
  line-height:1.8;
  color:var(--muted);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin:0 0 36px;
  padding:14px 0;
  list-style:none;
  border-bottom:1px solid var(--line);
  font-family:var(--font-index);
  font-size:14px;
  color:var(--muted);
}
.breadcrumb__item{display:inline-flex;align-items:baseline}
.breadcrumb__item + .breadcrumb__item::before{content:"/";margin-right:8px;color:var(--line)}
.breadcrumb__link{color:var(--muted);transition:color .2s}
.breadcrumb__link:hover{color:var(--brand)}
.breadcrumb__item[aria-current="page"]{color:var(--brand-light)}
.grid{display:grid;gap:24px}
.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))}
.img-frame{
  position:relative;
  display:block;
  overflow:hidden;
  background:var(--panel);
  border:1px solid var(--line);
}
.img-frame::before{content:"";display:block;padding-top:56.25%}
.img-frame--portrait::before{padding-top:125%}
.img-frame--square::before{padding-top:100%}
.img-frame--tall::before{padding-top:160%}
.img-frame img,.img-frame__content{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.img-frame--placeholder{
  background:repeating-linear-gradient(-45deg,rgba(45,64,51,.18) 0 10px,rgba(20,33,26,.8) 10px 20px);
}
.img-frame__caption{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:8px 14px;
  background:rgba(11,16,12,.72);
  color:var(--muted);
  font-family:var(--font-index);
  font-size:12px;
}
.site-footer{
  margin-top:auto;
  background:var(--panel);
  border-top:1px solid var(--line);
  position:relative;
}
.site-footer::before{
  content:"";
  display:block;
  height:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.site-footer__grid{
  width:min(100% - 48px,var(--content-max));
  margin-inline:auto;
  display:grid;
  grid-template-columns:1.1fr 1.35fr 1fr;
  gap:48px;
  padding:56px 0 48px;
}
.site-footer__brand-name{
  margin:0 0 8px;
  font-size:clamp(30px,4vw,52px);
  font-weight:300;
  color:var(--text);
  letter-spacing:.02em;
}
.site-footer__tagline{
  margin:0;
  font-family:var(--font-index);
  font-size:13px;
  color:var(--muted);
  line-height:1.6;
}
.site-footer__vnotice{
  display:flex;
  align-items:flex-start;
  gap:8px;
  margin:24px 0 0;
  padding:14px 16px;
  background:rgba(247,213,30,.07);
  border-left:3px solid var(--accent);
  color:var(--muted);
  font-size:14px;
  line-height:1.7;
}
.site-footer__v-badge{
  flex:none;
  color:var(--accent);
  font-weight:700;
  letter-spacing:.02em;
}
.site-footer__vnotice-text{flex:1;min-width:0}
.site-footer__heading{
  margin:0 0 18px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
  color:var(--brand);
  font-family:var(--font-index);
  font-size:14px;
  letter-spacing:.12em;
  text-transform:uppercase;
}
.site-footer__contact-list{margin:0;padding:0}
.site-footer__contact-item{
  display:grid;
  grid-template-columns:72px 1fr;
  gap:12px;
  padding:10px 0;
  border-bottom:1px solid rgba(45,64,51,.65);
}
.site-footer__contact-term{
  font-family:var(--font-index);
  font-size:12px;
  color:var(--muted);
  letter-spacing:.05em;
}
.site-footer__contact-desc{
  margin:0;
  color:var(--text);
  font-size:14px;
  line-height:1.6;
}
.site-footer__links-list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:2px;
}
.site-footer__link-item{list-style:none}
.site-footer__link{
  display:inline-block;
  padding:8px 0;
  color:var(--muted);
  font-size:15px;
  transition:color .2s,transform .2s;
}
.site-footer__link::before{content:"→ ";color:var(--brand)}
.site-footer__link:hover{color:var(--brand-light);transform:translateX(3px)}
.site-footer__bottom{
  border-top:1px solid var(--line);
  background:var(--bg);
  padding:16px 0;
}
.site-footer__bottom-inner{
  width:min(100% - 48px,var(--content-max));
  margin-inline:auto;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 24px;
  font-family:var(--font-index);
  font-size:13px;
  color:var(--muted);
}
.site-footer__copyright{margin:0}
.site-footer__icp{margin:0;letter-spacing:.04em}
.back-top{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:1200;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 18px;
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--text);
  font-family:var(--font-index);
  font-size:13px;
  cursor:pointer;
  transition:border-color .2s,color .2s,transform .2s,box-shadow .2s;
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.back-top::before{content:"↑";color:var(--brand);font-size:16px}
.back-top:hover{
  border-color:var(--brand);
  color:var(--brand-light);
  transform:translateY(-2px);
  box-shadow:0 14px 34px rgba(0,0,0,.45);
}
.is-active{color:var(--brand-light)}
@media (min-width:901px) and (max-width:1100px){
  .section{padding-block:56px}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-footer__grid{grid-template-columns:1fr 1fr;gap:36px}
  .site-footer__links{grid-column:1 / -1}
}
@media (max-width:900px){
  body{
    padding-left:0;
    padding-top:74px;
  }
  .site-header{
    left:0;
    right:0;
    width:auto;
    height:auto;
    bottom:auto;
    border-right:0;
    border-bottom:1px solid var(--line);
    max-height:100vh;
    overflow-y:auto;
    background:rgba(11,16,12,.96);
  }
  .site-header::after{display:none}
  .site-header__inner{
    height:auto;
    min-height:auto;
    flex-direction:row;
    flex-wrap:wrap;
    align-items:center;
    padding:12px 16px;
  }
  .header-top{flex:1 0 auto;align-items:center}
  .brand__tagline{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{
    flex:0 0 100%;
    display:none;
    margin-top:12px;
    padding-top:4px;
    border-top:1px solid var(--line);
  }
  .site-nav[data-open]{display:flex}
  .site-nav__list{margin:0}
  .site-nav__meta{margin-top:18px}
  .nav-cta{margin-bottom:12px}
  .nav-quick-index{grid-template-columns:repeat(4,1fr);padding-top:12px}
  .site-nav__link::after{left:-16px}
  .section{padding-block:48px}
  .container{width:min(100% - 32px,var(--content-max))}
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .site-footer__grid{
    grid-template-columns:1fr;
    gap:36px;
    width:min(100% - 32px,var(--content-max));
    padding:40px 0 28px;
  }
  .site-footer__links{grid-column:auto}
  .site-footer__bottom-inner{justify-content:center;text-align:center}
  .back-top{right:16px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
}