:root{
  --ink:#0B0B0F;
  --paper:#FFFFFF;
  --space:#0A1E3F;
  --space-deep:#061024;
  --orange:#FF6B35;
  --orange-bright:#FF824C;
  --orange-deep:#C2451A;
  --silver:#C7C9D1;
  --mist:#E8E8F0;
  --muted:#8A8F9E;
  --muted-strong:#535A68;
  --glass:rgba(255,255,255,.10);
  --glass-header:rgba(255,255,255,.88);
  --line:rgba(255,255,255,.18);
  --font-body:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --font-mono:'Roboto Mono','SFMono-Regular','Noto Sans Mono CJK SC',monospace;
  --page-max:1360px;
  --gutter:clamp(1.25rem,4vw,3.5rem);
  --section-space:clamp(3.5rem,8vw,7rem);
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 14px 36px rgba(11,11,15,.1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
main{flex:1;}
h1,h2,h3,h4,h5,h6{
  line-height:1.18;
  font-weight:900;
  color:var(--ink);
  margin-top:0;
}
p{margin-top:0;}
a{color:inherit;}
ul,ol{margin-top:0;}
img,svg{display:block;max-width:100%;}
button,input,select,textarea{font:inherit;}
::selection{background:var(--orange);color:var(--ink);}
:focus-visible{outline:3px solid var(--orange);outline-offset:2px;border-radius:2px;}

.container{
  width:min(100% - 2 * var(--gutter), var(--page-max));
  margin-inline:auto;
}
.container--narrow{
  width:min(100% - 2 * var(--gutter), 860px);
  margin-inline:auto;
}
.section{padding-block:var(--section-space);}
.section--tight{padding-block:2.5rem;}
.section--dark{background:var(--space);color:#fff;}
.section--dark h1,.section--dark h2,.section--dark h3,.section--dark h4{color:#fff;}
.section--dark a{color:var(--orange);}
.section--tint{background:var(--mist);}
.lead{
  font-size:clamp(1.125rem,2vw,1.375rem);
  line-height:1.6;
  color:var(--muted-strong);
}

.grid{display:grid;gap:var(--gutter);}
.grid--2,.grid--3{grid-template-columns:1fr;}
@media (min-width:700px){
  .grid--2{grid-template-columns:repeat(2,1fr);}
  .grid--3{grid-template-columns:repeat(2,1fr);}
}
@media (min-width:1024px){
  .grid--2{grid-template-columns:repeat(2,1fr);}
  .grid--3{grid-template-columns:repeat(3,1fr);}
}

.card{
  position:relative;
  background:var(--paper);
  border:1px solid var(--silver);
  padding:clamp(1.15rem,2vw,1.5rem);
}
.card::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:38px;
  height:4px;
  background:var(--orange);
}
.card--dark{
  background:var(--space);
  border-color:transparent;
  color:#fff;
}
.card--dark .card__title{color:#fff;}
.card__number{
  display:block;
  font-family:var(--font-mono);
  font-size:.75rem;
  color:var(--muted-strong);
  margin-bottom:.5rem;
  letter-spacing:.05em;
}
.card--dark .card__number{color:rgba(255,255,255,.6);}
.card__title{
  font-size:1.1rem;
  margin:.25rem 0 .5rem;
}
.card__text{
  font-size:.95rem;
  color:var(--muted-strong);
  margin-bottom:0;
}
.card--dark .card__text{color:rgba(255,255,255,.68);}

.index-map{
  display:grid;
  grid-template-columns:1fr;
  gap:1px;
  background:var(--silver);
  border:1px solid var(--silver);
}
@media (min-width:700px){
  .index-map{grid-template-columns:repeat(2,1fr);}
}
@media (min-width:1024px){
  .index-map{grid-template-columns:repeat(4,1fr);}
}
.index-map__item{background:var(--paper);position:relative;}
.index-map__link{
  display:block;
  padding:1.4rem 1.25rem;
  text-decoration:none;
  color:inherit;
  height:100%;
}
.index-map__link:hover{background:var(--mist);}
.index-map__num{
  font-family:var(--font-mono);
  font-size:.78rem;
  color:var(--orange-deep);
}
.index-map__title{
  font-weight:900;
  margin:.35rem 0 .15rem;
  font-size:1.05rem;
}
.index-map__text{
  font-size:.88rem;
  color:var(--muted-strong);
  margin-bottom:0;
}

.table-index{
  display:grid;
  border-top:2px solid var(--ink);
  border-bottom:1px solid var(--silver);
}
.table-index__row{
  display:grid;
  grid-template-columns:minmax(70px,.5fr) 2fr;
  gap:1rem;
  padding:.9rem .25rem;
  border-bottom:1px solid var(--mist);
  text-decoration:none;
  align-items:baseline;
}
.table-index__row:hover{background:var(--mist);}
.table-index__num{
  font-family:var(--font-mono);
  font-size:.8rem;
  color:var(--orange-deep);
}
.table-index__title{font-weight:700;}
.table-index__desc{
  display:block;
  font-size:.85rem;
  color:var(--muted-strong);
  font-weight:400;
}

.data-list{
  display:grid;
  gap:.2rem;
  margin:0;
}
.data-list__item{
  display:grid;
  grid-template-columns:minmax(6.5rem,.8fr) 2fr;
  gap:1rem;
  padding:.6rem 0;
  border-bottom:1px solid var(--mist);
}
.data-list__label{
  font-family:var(--font-mono);
  font-size:.78rem;
  color:var(--muted-strong);
  text-transform:uppercase;
  letter-spacing:.05em;
  padding-top:.1rem;
}
.data-list__value{
  font-weight:600;
  color:var(--ink);
  margin:0;
}

.breadcrumb{
  list-style:none;
  margin:0 0 1.5rem;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:.35rem .7rem;
  font-size:.85rem;
}
.breadcrumb li + li::before{
  content:"/";
  margin-right:.7rem;
  color:var(--muted);
  font-family:var(--font-mono);
}
.breadcrumb a{
  color:var(--muted-strong);
  text-decoration:none;
}
.breadcrumb a:hover{color:var(--orange-deep);}
.breadcrumb [aria-current="page"]{
  color:var(--ink);
  font-weight:700;
}

.page-hero{
  position:relative;
  background:var(--space);
  color:#fff;
  padding:clamp(3rem,7vw,5.5rem) 0;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(rgba(255,255,255,.12) 0 1px,transparent 1.4px),
    radial-gradient(rgba(255,255,255,.08) 0 1px,transparent 1.6px);
  background-size:120px 120px,200px 200px;
  background-position:10% 20%,80% 60%;
}
.page-hero::after{
  content:"";
  position:absolute;
  width:220px;
  height:2px;
  background:linear-gradient(90deg,transparent,var(--orange),transparent);
  transform:rotate(-32deg);
  top:20%;
  right:-40px;
  opacity:.65;
}
.page-hero > *{position:relative;z-index:1;}
.page-hero__kicker{
  font-family:var(--font-mono);
  color:var(--orange);
  letter-spacing:.08em;
  text-transform:uppercase;
  font-size:.8rem;
  display:block;
  margin-bottom:.6rem;
}
.page-hero__title{
  color:#fff;
  font-size:clamp(2rem,5vw,3.4rem);
  margin-bottom:1rem;
}
.page-hero__lead{
  color:rgba(255,255,255,.72);
  font-size:1.05rem;
  max-width:60ch;
  margin-bottom:0;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  border:1px solid transparent;
  padding:.72rem 1.2rem;
  background:transparent;
  color:var(--ink);
  font-weight:700;
  font-size:.95rem;
  line-height:1;
  text-decoration:none;
  cursor:pointer;
  transition:
    background-color .24s var(--ease),
    border-color .24s var(--ease),
    color .24s var(--ease),
    transform .24s var(--ease);
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn--primary{
  background:var(--orange);
  border-color:var(--orange);
  color:var(--ink);
}
.btn--primary:hover{
  background:var(--orange-bright);
  border-color:var(--orange-bright);
  transform:translateY(-2px);
}
.btn--ghost{
  border-color:var(--ink);
  color:var(--ink);
}
.btn--ghost:hover{
  background:var(--ink);
  color:var(--paper);
}
.btn--dark{
  background:var(--space);
  border-color:var(--space);
  color:#fff;
}
.btn--dark:hover{background:#132b54;}
.btn--light{
  background:#fff;
  border-color:#fff;
  color:var(--space);
}
.btn--light:hover{
  background:var(--mist);
  border-color:var(--mist);
}

.badge{
  display:inline-flex;
  align-items:center;
  gap:.45rem;
  font-family:var(--font-mono);
  font-size:.72rem;
  font-weight:700;
  letter-spacing:.04em;
  text-transform:uppercase;
  padding:.2rem .55rem;
  background:var(--silver);
  color:var(--ink);
}
.badge--live{
  background:var(--orange);
  color:var(--ink);
}
.badge--live::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:currentColor;
  animation:livePulse 1.4s infinite;
}
@keyframes livePulse{
  0%,100%{opacity:1;}
  60%{opacity:.35;}
}

.glass-panel{
  background:var(--glass);
  border:1px solid rgba(255,255,255,.2);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  padding:clamp(1.25rem,3vw,2rem);
}
.glass-panel--dark{
  background:rgba(10,30,63,.45);
  color:#fff;
}
.glass-panel--orange{
  border-top:4px solid var(--orange);
}

.media{
  position:relative;
  overflow:hidden;
  background:var(--mist);
  aspect-ratio:16/9;
}
.media--portrait{aspect-ratio:4/5;}
.media--wide{aspect-ratio:21/9;}
.media img,
.media svg,
.media > *{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}

.skill-path{
  display:grid;
  grid-template-columns:1fr;
  gap:1.5rem;
  counter-reset:skill;
}
@media (min-width:768px){
  .skill-path{grid-template-columns:repeat(3,1fr);}
}
.skill-path__step{
  position:relative;
  padding-top:1.4rem;
  border-top:4px solid var(--silver);
}
.skill-path__step::before{
  counter-increment:skill;
  content:counter(skill,decimal-leading-zero);
  position:absolute;
  top:-.5rem;
  right:0;
  font-family:var(--font-mono);
  font-size:.8rem;
  color:var(--orange-deep);
  background:var(--paper);
  padding-left:.5rem;
}
.skill-path__step[aria-current="true"]{
  border-top-color:var(--orange);
}
.skill-path__title{
  font-weight:800;
  margin:.2rem 0 .35rem;
}
.skill-path__text{
  font-size:.92rem;
  color:var(--muted-strong);
  margin-bottom:0;
}

.divider{
  height:2px;
  border:0;
  background:linear-gradient(90deg,transparent,var(--silver) 20%,var(--ink) 50%,var(--silver) 80%,transparent);
  margin-block:2.5rem;
}

.stardust{
  position:relative;
  overflow:hidden;
  background-color:var(--space);
  background-image:
    radial-gradient(rgba(255,255,255,.08) 0 1px,transparent 1.4px),
    radial-gradient(rgba(255,255,255,.05) 0 1px,transparent 1px);
  background-size:140px 140px,220px 220px;
}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:1rem;
  margin-bottom:2rem;
}
.section-head__title{
  font-size:clamp(1.5rem,3vw,2.2rem);
  margin-bottom:.35rem;
}
.section-kicker{
  display:block;
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.08em;
  color:var(--orange-deep);
  text-transform:uppercase;
  margin-bottom:.5rem;
}
.section__link{
  font-weight:700;
  font-size:.9rem;
  color:var(--ink);
  text-decoration:none;
  border-bottom:2px solid var(--orange);
  white-space:nowrap;
}

.scroll-progress{
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:3px;
  z-index:2;
  pointer-events:none;
}
.scroll-progress__bar{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--orange),var(--orange-bright));
}

.skip-link{
  position:fixed;
  top:-100px;
  left:1rem;
  z-index:100;
  padding:.65rem 1rem;
  background:var(--ink);
  color:#fff;
  font-weight:700;
  text-decoration:none;
  transition:top .2s ease;
}
.skip-link:focus{
  top:1rem;
}

.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--glass-header);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--silver);
}
.masthead{
  display:flex;
  align-items:center;
  gap:1rem;
  max-width:var(--page-max);
  margin-inline:auto;
  padding:.75rem var(--gutter);
}
.masthead__brand{
  display:flex;
  align-items:center;
  margin-right:auto;
  min-width:0;
}
.brand-link{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  text-decoration:none;
  color:var(--ink);
}
.brand-mark{
  display:grid;
  place-items:center;
  width:32px;
  height:32px;
  background:var(--space);
  clip-path:polygon(0 0,72% 0,100% 28%,100% 100%,28% 100%,0 72%);
  flex-shrink:0;
}
.brand-mark svg,
.brand-mark__star{
  width:17px;
  height:17px;
  color:var(--orange);
}
.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.1;
}
.brand-cn{
  font-size:1.3rem;
  font-weight:900;
  letter-spacing:.02em;
  white-space:nowrap;
}
.brand-en{
  font-family:var(--font-mono);
  font-size:.58rem;
  letter-spacing:.18em;
  color:var(--muted-strong);
  text-transform:uppercase;
}

.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  border:1px solid var(--space);
  background:var(--space);
  color:#fff;
  padding:.35rem .6rem;
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.04em;
  cursor:pointer;
  transition:background-color .2s ease;
}
.nav-toggle:hover{background:#132b54;}
html:not(.js) .nav-toggle{display:none;}
.nav-toggle__box{
  display:block;
  position:relative;
  width:1rem;
  height:.8rem;
}
.nav-toggle__box span{
  position:absolute;
  left:0;
  width:100%;
  height:2px;
  background:var(--orange);
  transition:transform .2s ease,opacity .2s ease,top .2s ease;
}
.nav-toggle__box span:nth-child(1){top:0;}
.nav-toggle__box span:nth-child(2){top:50%;transform:translateY(-50%);}
.nav-toggle__box span:nth-child(3){bottom:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle__box span:nth-child(1){
  top:50%;
  transform:translateY(-50%) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__box span:nth-child(2){
  opacity:0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__box span:nth-child(3){
  bottom:auto;
  top:50%;
  transform:translateY(-50%) rotate(-45deg);
}

.masthead__index{
  display:flex;
  align-items:center;
  font-family:var(--font-mono);
  font-size:.8rem;
  color:var(--muted-strong);
  white-space:nowrap;
}
.index-current{
  color:var(--orange-deep);
  font-weight:700;
}
.index-sep{
  margin:0 .25rem;
  color:var(--muted);
}
.index-total{
  color:var(--muted-strong);
}

.site-nav{
  border-top:1px solid var(--silver);
  border-bottom:1px solid var(--silver);
  background:var(--paper);
}
html.js .site-nav{
  max-height:0;
  opacity:0;
  visibility:hidden;
  overflow:hidden;
  border-top-color:transparent;
  border-bottom-color:transparent;
  transition:
    max-height .34s var(--ease),
    opacity .24s ease,
    border-color .24s ease,
    visibility .24s;
}
html.js .site-nav[data-open]{
  max-height:82vh;
  opacity:1;
  visibility:visible;
  border-top-color:var(--silver);
  border-bottom-color:var(--silver);
}
.nav-list{
  display:flex;
  flex-direction:column;
  list-style:none;
  margin:0 auto;
  max-width:var(--page-max);
  padding:.5rem var(--gutter) .75rem;
}
.nav-item + .nav-item{
  border-top:1px solid var(--mist);
}
.nav-link{
  display:flex;
  align-items:baseline;
  gap:.45rem;
  padding:.85rem 0;
  border-left:3px solid transparent;
  text-decoration:none;
  font-weight:600;
  color:var(--ink);
  transition:background-color .2s ease,border-color .2s ease,color .2s ease;
}
.nav-link:hover{
  color:var(--ink);
  border-left-color:var(--orange);
  background:var(--mist);
}
.nav-link[aria-current="page"]{
  color:var(--ink);
  border-left-color:var(--orange);
  background:var(--mist);
  font-weight:700;
}
.nav-index{
  font-family:var(--font-mono);
  font-size:.72rem;
  color:var(--muted);
  min-width:1.6rem;
}
.nav-label{
  font-size:.95rem;
}

@media (min-width:900px){
  .nav-toggle{display:none;}
  .site-nav,
  html.js .site-nav{
    max-height:none;
    opacity:1;
    visibility:visible;
    overflow:visible;
    transition:none;
    border-top-color:var(--silver);
    border-bottom-color:var(--silver);
  }
  html.js .site-nav[data-open]{
    max-height:none;
  }
  .nav-list{
    flex-direction:row;
    justify-content:center;
    gap:.25rem;
    padding:0 var(--gutter);
  }
  .nav-item + .nav-item{
    border-top:0;
  }
  .nav-link{
    border-left:0;
    border-bottom:3px solid transparent;
    padding:.65rem 1rem;
  }
  .nav-link:hover{
    border-left-color:transparent;
    border-bottom-color:var(--orange);
    background:transparent;
  }
  .nav-link[aria-current="page"]{
    border-left-color:transparent;
    border-bottom-color:var(--orange);
    background:transparent;
  }
}

.site-footer{
  position:relative;
  overflow:hidden;
  background:var(--space);
  color:rgba(255,255,255,.82);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    radial-gradient(rgba(255,255,255,.09) 0 1px,transparent 1.4px),
    radial-gradient(rgba(255,255,255,.06) 0 1px,transparent 1px);
  background-size:140px 140px,220px 220px;
}
.site-footer a{
  color:rgba(255,255,255,.78);
  text-decoration:none;
  transition:color .2s ease,border-color .2s ease;
}
.site-footer a:hover{
  color:#fff;
}
.footer-inner{
  position:relative;
  max-width:var(--page-max);
  margin-inline:auto;
  padding:clamp(2.5rem,6vw,4.5rem) var(--gutter) 2rem;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:2rem;
}
@media (min-width:700px){
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:2.5rem;
  }
}
@media (min-width:1024px){
  .footer-grid{
    grid-template-columns:1.3fr .8fr 1fr;
    gap:4rem;
  }
}
.footer-brand .brand-link{
  color:#fff;
}
.brand-link--footer .brand-cn{
  color:#fff;
}
.footer-tagline{
  margin:1rem 0 .8rem;
  max-width:36ch;
  color:rgba(255,255,255,.65);
  font-size:.92rem;
}
.footer-icp{
  font-family:var(--font-mono);
  font-size:.8rem;
  color:rgba(255,255,255,.5);
  margin:0;
}
.footer-heading{
  font-family:var(--font-mono);
  font-size:.8rem;
  letter-spacing:.1em;
  color:var(--orange);
  text-transform:uppercase;
  margin-bottom:1rem;
}
.footer-list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:.55rem;
}
.footer-list a{
  border-bottom:1px solid transparent;
}
.footer-list a:hover{
  border-bottom-color:var(--orange);
  color:#fff;
}
.footer-contact{
  margin:0;
  padding:0;
  display:grid;
  gap:.65rem;
}
.footer-contact__item{
  display:grid;
  gap:.1rem;
  margin:0;
}
.footer-contact__label{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.08em;
  color:rgba(255,255,255,.5);
  text-transform:uppercase;
}
.footer-contact__value{
  color:rgba(255,255,255,.86);
  font-size:.95rem;
  margin:0;
}
.footer-bottom{
  margin-top:2.5rem;
  padding-top:1.4rem;
  border-top:1px solid rgba(255,255,255,.16);
  display:flex;
  flex-direction:column;
  gap:.8rem;
  font-size:.85rem;
  color:rgba(255,255,255,.55);
}
@media (min-width:700px){
  .footer-bottom{
    flex-direction:row;
    justify-content:space-between;
    align-items:center;
  }
}
.footer-bottom__copy{
  margin:0;
}
.footer-bottom__links{
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:1.25rem;
}
.footer-bottom__links a{
  color:rgba(255,255,255,.6);
}
.footer-bottom__links a:hover{
  color:var(--orange);
}

html.js [data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .34s var(--ease),transform .34s var(--ease);
  will-change:opacity,transform;
}
html.js [data-reveal][data-revealed="true"]{
  opacity:1;
  transform:none;
}
html.js [data-reveal][data-reveal-delay="1"]{
  transition-delay:.08s;
}
html.js [data-reveal][data-reveal-delay="2"]{
  transition-delay:.16s;
}
html.js [data-reveal][data-reveal-delay="3"]{
  transition-delay:.24s;
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  html.js [data-reveal],
  html.js [data-reveal][data-revealed="true"]{
    opacity:1;
    transform:none;
    transition:none;
  }
  .badge--live::before{
    animation:none;
  }
}