:root{
  --ink:#061217;
  --indigo:#0F2A3A;
  --jade:#2E7D74;
  --jade-soft:#74B3A8;
  --mist:#A7BFBD;
  --cream:#E9E3D7;
  --cinnabar:#C7442E;
  --gold:#D6A84B;
  --deep-jade:#1B4F4A;
  --jade-veil:rgba(46,125,116,.18);
  --line:rgba(167,191,189,.20);
  --line-strong:rgba(167,191,189,.38);
  --font-display:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","Menlo","Consolas","Liberation Mono",monospace;
  --wrap:1180px;
  --gutter:clamp(18px,4vw,52px);
  --cut:22px;
  --cut-lg:44px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
html,body{margin:0;padding:0;}
body{
  min-height:100vh;
  background:
    radial-gradient(1100px 620px at 84% -8%,rgba(46,125,116,.22),transparent 62%),
    radial-gradient(820px 540px at 4% 6%,rgba(27,79,74,.38),transparent 60%),
    linear-gradient(180deg,var(--ink) 0%,var(--indigo) 48%,#08181F 100%);
  color:var(--cream);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.55;
  letter-spacing:.01em;
  word-break:break-word;
  line-break:strict;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}
img,svg,video{display:block;max-width:100%;height:auto;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
a{color:var(--jade-soft);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--cream);}
button{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:2px;}
::selection{background:var(--jade);color:var(--cream);}
#main-content{display:block;scroll-margin-top:110px;}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter);}
.section{padding-block:clamp(40px,6vw,96px);}
.rule{height:1px;border:0;margin:clamp(28px,4vw,56px) 0;background:linear-gradient(90deg,var(--jade),rgba(167,191,189,.06));}

.display-xl{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(56px,8vw,120px);
  line-height:.94;
  letter-spacing:-.02em;
  color:var(--cream);
  text-wrap:balance;
}
.num{
  font-family:var(--font-mono);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}
.eyebrow{
  display:block;
  font-size:11px;
  font-weight:500;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--jade-soft);
}
.index-no{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.18em;
  color:var(--gold);
}
.tag{
  display:inline-block;
  padding:4px 11px;
  font-size:11px;
  letter-spacing:.14em;
  color:var(--jade-soft);
  border:1px solid var(--line-strong);
  border-radius:999px;
}
.slab{
  display:inline-block;
  padding:.36em 1.15em .36em 1.3em;
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--cream);
  background:linear-gradient(100deg,var(--jade),var(--deep-jade));
  clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%);
}

.panel{
  background:linear-gradient(162deg,rgba(15,42,58,.88),rgba(6,18,23,.94));
  border:1px solid var(--line);
}
.cut{clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));}
.cut--lg{clip-path:polygon(0 0,calc(100% - var(--cut-lg)) 0,100% var(--cut-lg),100% 100%,var(--cut-lg) 100%,0 calc(100% - var(--cut-lg)));}

.btn{
  --btn-bg:var(--jade);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55em;
  padding:.85em 1.6em;
  font-family:var(--font-body);
  font-size:13.5px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--cream);
  background:var(--btn-bg);
  border:1px solid transparent;
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 100%,14px 100%);
  cursor:pointer;
  transition:transform .24s ease,filter .24s ease,color .24s ease,border-color .24s ease;
}
.btn:hover{transform:translateY(-2px);filter:brightness(1.12);}
.btn--jade{--btn-bg:var(--jade);color:var(--cream);}
.btn--cinnabar{--btn-bg:var(--cinnabar);color:#fff2ea;}
.btn--ghost{--btn-bg:transparent;color:var(--cream);border-color:var(--line-strong);}
.btn--ghost:hover{border-color:var(--jade-soft);filter:none;}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.4em;
  font-size:11.5px;
  letter-spacing:.12em;
  color:var(--mist);
}
.breadcrumb li{display:inline-flex;align-items:center;}
.breadcrumb li+li::before{content:"／";margin-right:.4em;color:var(--jade);}
.breadcrumb a{color:var(--mist);}
.breadcrumb a:hover{color:var(--gold);}

.prose{
  max-width:68ch;
  font-size:16px;
  line-height:1.72;
  color:var(--mist);
}
.prose>*+*{margin-top:1em;}
.prose h2,.prose h3{font-family:var(--font-display);color:var(--cream);line-height:1.2;letter-spacing:-.01em;}
.prose h2{font-size:clamp(24px,3vw,32px);margin-top:1.6em;}
.prose h3{font-size:clamp(19px,2vw,23px);margin-top:1.4em;}
.prose strong{color:var(--cream);font-weight:700;}
.prose a{color:var(--jade-soft);border-bottom:1px solid rgba(116,179,168,.4);}
.prose a:hover{color:var(--gold);border-bottom-color:var(--gold);}

.grid{display:grid;gap:clamp(16px,2.2vw,28px);}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(258px,1fr));}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(212px,1fr));}

.media{
  position:relative;
  display:block;
  overflow:hidden;
  width:100%;
  background:linear-gradient(150deg,var(--deep-jade),var(--indigo) 56%,var(--ink));
  border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - 26px) 0,100% 26px,100% 100%,0 100%);
}
.media::after{
  content:"";
  position:absolute;
  right:14px;
  bottom:14px;
  width:34px;
  height:2px;
  background:var(--gold);
  transform:rotate(-38deg);
  opacity:.7;
  pointer-events:none;
}
.media img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.92) contrast(1.06) brightness(.94);
}
.media--wide{aspect-ratio:16/9;}
.media--square{aspect-ratio:1/1;}
.media--tall{aspect-ratio:3/4;}
.media-veil{
  position:absolute;
  inset:0;
  background:linear-gradient(198deg,rgba(46,125,116,.30),rgba(6,18,23,.74) 78%);
  pointer-events:none;
}

.meter{
  position:relative;
  height:6px;
  width:100%;
  overflow:hidden;
  background:rgba(167,191,189,.16);
}
.meter-fill{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--jade),var(--gold) 72%,var(--cinnabar));
  transition:width .9s cubic-bezier(.2,.7,.3,1);
}

html[data-js="on"] [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .6s cubic-bezier(.2,.7,.3,1),transform .6s cubic-bezier(.2,.7,.3,1);
}
html[data-js="on"] [data-reveal][data-visible]{
  opacity:1;
  transform:none;
}

.skip-link{
  position:fixed;
  top:10px;
  left:10px;
  z-index:200;
  padding:11px 18px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--ink);
  background:var(--gold);
  border-radius:6px;
  transform:translateY(-180%);
  transition:transform .22s ease;
}
.skip-link:focus{transform:translateY(0);color:var(--ink);}

.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding-top:clamp(10px,1.6vw,20px);
  transition:padding-top .32s ease;
}
.site-header .wrap{position:relative;}
.sh-rail{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:clamp(10px,2vw,24px);
}
.sh-brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  padding:9px 20px 9px 13px;
  background:linear-gradient(122deg,rgba(15,42,58,.94),rgba(6,18,23,.86));
  border:1px solid var(--line);
  border-radius:999px;
  color:var(--cream);
  backdrop-filter:blur(10px);
  transition:padding .32s ease,border-color .32s ease;
}
.sh-brand:hover{color:var(--cream);border-color:var(--jade);}
.sh-brand-mark{
  position:relative;
  flex:none;
  width:26px;
  height:26px;
  background:linear-gradient(140deg,var(--jade),var(--deep-jade));
  clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
}
.sh-brand-mark::after{
  content:"";
  position:absolute;
  left:5px;
  right:5px;
  bottom:6px;
  height:2px;
  background:var(--gold);
  transform:rotate(-20deg);
}
.sh-brand-text{display:grid;gap:1px;line-height:1.06;}
.sh-brand-name{
  font-family:var(--font-display);
  font-size:16.5px;
  font-weight:800;
  letter-spacing:.09em;
  color:var(--cream);
}
.sh-brand-sub{
  font-family:var(--font-mono);
  font-size:9px;
  font-weight:600;
  letter-spacing:.30em;
  color:var(--jade-soft);
}
.sh-nav{
  display:flex;
  align-items:center;
  padding:6px;
  background:rgba(6,18,23,.62);
  border:1px solid var(--line);
  border-radius:999px;
  backdrop-filter:blur(12px);
}
.sh-nav-list{display:flex;align-items:center;gap:2px;}
.sh-nav-item{display:block;}
.sh-nav-link{
  display:inline-block;
  padding:8px 14px;
  font-size:13.5px;
  font-weight:500;
  letter-spacing:.07em;
  color:var(--mist);
  border-radius:999px;
  transition:color .2s ease,background-color .2s ease,padding .32s ease;
}
.sh-nav-link:hover{color:var(--cream);background:rgba(46,125,116,.28);}
.sh-nav-link[aria-current="page"]{
  color:var(--ink);
  font-weight:700;
  background:linear-gradient(118deg,var(--jade-soft),var(--gold));
}
.sh-nav-link[aria-current="page"]:hover{color:var(--ink);}
.sh-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:10px 16px;
  background:rgba(6,18,23,.74);
  border:1px solid var(--line-strong);
  border-radius:999px;
  color:var(--cream);
  font-size:12.5px;
  letter-spacing:.14em;
  cursor:pointer;
  backdrop-filter:blur(10px);
}
.sh-toggle-glyph{display:grid;gap:4px;width:16px;}
.sh-toggle-glyph span{
  display:block;
  height:2px;
  background:var(--jade-soft);
  transition:transform .28s ease,width .28s ease,background-color .28s ease;
}
.sh-toggle-glyph span:last-child{width:70%;margin-left:auto;}
.sh-toggle[aria-expanded="true"] .sh-toggle-glyph span:first-child{transform:translateY(6px) rotate(45deg);background:var(--gold);}
.sh-toggle[aria-expanded="true"] .sh-toggle-glyph span:last-child{width:100%;transform:translateY(-6px) rotate(-45deg);background:var(--gold);}
.sh-progress{
  height:3px;
  margin-top:clamp(8px,1vw,14px);
  background:rgba(167,191,189,.10);
  overflow:hidden;
}
.sh-progress-fill{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--jade),var(--gold) 68%,var(--cinnabar));
  transition:width .12s linear;
}
.site-header[data-stuck]{padding-top:8px;}
.site-header[data-stuck] .sh-brand{padding-top:6px;padding-bottom:6px;border-color:rgba(46,125,116,.55);}
.site-header[data-stuck] .sh-nav-link{padding-top:6px;padding-bottom:6px;}
.site-header[data-stuck] .sh-brand-sub{display:none;}

.site-footer{
  margin-top:clamp(48px,7vw,120px);
  padding-bottom:clamp(20px,3vw,40px);
  background:linear-gradient(180deg,transparent,rgba(6,18,23,.86) 34%,var(--ink));
  color:var(--cream);
}
.sf-panel{
  padding:clamp(26px,4vw,56px);
  background:linear-gradient(164deg,rgba(15,42,58,.92),rgba(6,18,23,.98));
  border:1px solid var(--line);
}
.sf-grid{
  display:grid;
  grid-template-columns:1.45fr .85fr .85fr 1.2fr;
  gap:clamp(22px,3vw,46px);
  align-items:start;
}
.sf-brand{display:flex;flex-direction:column;align-items:flex-start;gap:14px;}
.sf-mark{
  font-family:var(--font-display);
  font-size:clamp(24px,3vw,32px);
  font-weight:800;
  letter-spacing:.06em;
  color:var(--cream);
}
.sf-note{
  max-width:30ch;
  font-size:13.5px;
  line-height:1.68;
  color:var(--mist);
}
.sf-col{min-width:0;}
.sf-title{
  display:flex;
  align-items:center;
  margin-bottom:14px;
  font-size:11px;
  font-weight:600;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--jade-soft);
}
.sf-title::before{
  content:"";
  flex:none;
  width:9px;
  height:9px;
  margin-right:8px;
  background:var(--cinnabar);
  clip-path:polygon(0 0,100% 0,100% 100%);
}
.sf-list{display:grid;gap:9px;}
.sf-link{
  display:inline-block;
  width:fit-content;
  font-size:13.5px;
  letter-spacing:.04em;
  color:var(--mist);
  border-bottom:1px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.sf-link:hover{color:var(--cream);border-bottom-color:var(--jade-soft);}
.sf-list--plain{gap:14px;}
.sf-list--plain li{display:grid;gap:2px;}
.sf-key{font-size:10.5px;letter-spacing:.2em;color:var(--jade-soft);}
.sf-val{font-size:13.5px;line-height:1.55;color:var(--cream);}
.sf-legal{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:8px 24px;
  margin-top:clamp(26px,3vw,44px);
  padding-top:18px;
  border-top:1px solid var(--line);
}
.sf-copy{font-size:12px;letter-spacing:.06em;color:var(--mist);}
.sf-copy--dim{color:rgba(167,191,189,.62);}

@media (max-width:1080px){
  .sf-grid{grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,40px);}
  .sf-brand{grid-column:1 / -1;}
}
@media (max-width:900px){
  .sh-toggle{display:inline-flex;}
  .sh-nav{
    position:fixed;
    top:86px;
    left:var(--gutter);
    right:var(--gutter);
    z-index:85;
    display:block;
    max-height:calc(100vh - 122px);
    overflow-y:auto;
    padding:14px;
    border-radius:22px;
    border:1px solid var(--line-strong);
    background:rgba(8,24,31,.97);
    box-shadow:0 26px 64px rgba(0,0,0,.58);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .28s ease,transform .28s ease,visibility .28s ease;
  }
  .sh-nav[data-open]{opacity:1;visibility:visible;transform:none;}
  .sh-nav-list{display:grid;gap:6px;}
  .sh-nav-link{display:block;padding:13px 16px;border-radius:12px;font-size:15px;}
  .sh-nav-link[aria-current="page"]{border-radius:12px;}
  .cut--lg{clip-path:polygon(0 0,calc(100% - 24px) 0,100% 24px,100% 100%,24px 100%,0 calc(100% - 24px));}
}
@media (max-width:680px){
  .sf-grid{grid-template-columns:1fr;}
  .sf-legal{flex-direction:column;align-items:flex-start;}
  .sh-brand-sub{display:none;}
  .display-xl{letter-spacing:-.01em;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  html[data-js="on"] [data-reveal]{opacity:1;transform:none;transition:none;}
  .meter-fill{transition:none;}
  .sh-progress-fill{transition:none;}
  .btn,.sh-nav,.sh-nav-link,.sh-brand,.site-header,.skip-link,.sf-link{transition:none;}
  .btn:hover{transform:none;}
}