*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
[hidden]{display:none!important}
table{border-collapse:collapse;width:100%}
:root{
  --ink-900:#06080B;
  --ink-800:#0E1319;
  --line:#1E2A33;
  --green:#35F79B;
  --green-deep:#0F7A4E;
  --violet:#8A6BFF;
  --violet-void:#2A1F4D;
  --orange:#FF7A2F;
  --paper:#F2F6F4;
  --text:#F2F6F4;
  --text-2:#A8B4BD;
  --text-3:#5B6873;
  --bg:var(--ink-900);
  --panel:var(--ink-800);
  --r-sm:12px;
  --r-card:20px;
  --r-panel:28px;
  --r-pill:999px;
  --gutter:5vw;
  --shell:min(1280px,90vw);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:180ms;
  --dur-fast:140ms;
  --font-sans:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Noto Sans Mono CJK SC","Courier New",monospace;
  --z-header:80;
  --z-overlay:120;
}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
:focus-visible{outline:2px solid var(--violet);outline-offset:3px;border-radius:8px}
.num,.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:700}
.num--glow{color:var(--green);text-shadow:0 0 1px rgba(53,247,155,.9),0 0 16px rgba(15,122,78,.85)}
.num--xl{font-size:clamp(38px,7vw,84px);line-height:1;letter-spacing:-.02em}
.num--lg{font-size:clamp(26px,4vw,44px);line-height:1.1;letter-spacing:-.01em}
h1,h2,h3,h4{line-height:1.16;letter-spacing:-.02em;font-weight:700}
.shell{width:var(--shell);margin-inline:auto}
.shell--narrow{width:min(820px,90vw);margin-inline:auto}
.skip-link{
  position:absolute;left:16px;top:-72px;z-index:var(--z-overlay);
  padding:10px 18px;border-radius:var(--r-pill);
  background:var(--green);color:var(--ink-900);
  font-size:14px;font-weight:700;line-height:1.2;
  transition:top var(--dur) var(--ease);
}
.skip-link:focus{top:12px}
/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:var(--z-header);
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.site-header[data-scrolled="true"]{
  background:rgba(14,19,25,.94);
  border-bottom-color:var(--line);
  -webkit-backdrop-filter:blur(12px) saturate(1.2);
  backdrop-filter:blur(12px) saturate(1.2);
}
.header-inner{
  width:min(1440px,92vw);margin-inline:auto;
  min-height:76px;display:flex;align-items:center;gap:18px;
  transition:min-height var(--dur) var(--ease);
}
.site-header[data-scrolled="true"] .header-inner{min-height:62px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.08em;
  padding:5px 9px;border-radius:9px;line-height:1;
  background:var(--green);color:var(--ink-900);
  box-shadow:0 0 18px rgba(53,247,155,.32);
}
.brand__name{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--text);transition:color var(--dur-fast) var(--ease)}
.brand:hover .brand__name,.brand:focus-visible .brand__name{color:var(--green)}
.batch-badge{
  display:inline-flex;align-items:center;gap:7px;flex:0 0 auto;
  padding:5px 12px 5px 11px;border-radius:var(--r-pill);
  border:1px solid rgba(53,247,155,.35);
  background:rgba(53,247,155,.07);
  font-family:var(--font-mono);font-size:12px;line-height:1.5;
}
.batch-badge__key{color:var(--text-3);letter-spacing:.14em}
.batch-badge__val{color:var(--green);font-weight:700;letter-spacing:.04em;text-shadow:0 0 12px rgba(53,247,155,.55)}
.site-nav{flex:1 1 auto;display:flex;justify-content:center;min-width:0}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-item{display:block}
.nav-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 13px;border-radius:var(--r-pill);
  color:var(--text-2);font-size:14px;font-weight:500;line-height:1;white-space:nowrap;
  transition:color var(--dur-fast) var(--ease),background var(--dur-fast) var(--ease);
}
.nav-label{display:inline-block;line-height:1}
.nav-index{font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;color:var(--text-3);transition:color var(--dur-fast) var(--ease)}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link:hover .nav-index{color:var(--violet)}
.nav-link:focus-visible{outline:2px solid var(--violet);outline-offset:2px}
.nav-link[aria-current="page"]{background:var(--green);color:var(--ink-900);font-weight:700}
.nav-link[aria-current="page"] .nav-index{color:rgba(6,8,11,.5)}
.header-aside{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.channel-state{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;
  color:var(--text-2);white-space:nowrap;
}
.channel-dot{
  width:7px;height:7px;border-radius:50%;background:var(--green);
  box-shadow:0 0 0 3px rgba(53,247,155,.16),0 0 10px rgba(53,247,155,.85);
}
.header-cta{
  display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--text);
  font-size:13px;font-weight:600;line-height:1.4;white-space:nowrap;
  transition:border-color var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease),background var(--dur-fast) var(--ease);
}
.header-cta:hover,.header-cta:focus-visible{border-color:var(--green);color:var(--green);background:rgba(53,247,155,.08)}
.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--r-pill);
  background:transparent;border:1px solid var(--line);
  color:var(--text);font-size:13px;font-weight:600;line-height:1.4;cursor:pointer;
  transition:border-color var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease);
}
.nav-toggle:hover,.nav-toggle:focus-visible{border-color:var(--green);color:var(--green)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:4px;width:16px}
.nav-toggle__bars i{display:block;height:1.5px;border-radius:2px;background:currentColor;transition:transform var(--dur-fast) var(--ease),opacity var(--dur-fast) var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(5.5px) 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(-5.5px) rotate(-45deg)}
.nav-toggle__label{display:inline-block;line-height:1}
.scroll-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;overflow:hidden;pointer-events:none}
.scroll-progress > span{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:left center;
  background:linear-gradient(90deg,var(--green-deep),var(--green) 62%,var(--violet));
}
/* ---------- footer ---------- */
.site-footer{
  position:relative;margin-top:clamp(64px,9vw,132px);
  background:linear-gradient(180deg,var(--ink-900),#04060A 62%);
  border-top:1px solid var(--line);
  padding-top:clamp(48px,6vw,88px);
  color:var(--text);
}
.footer-inner{
  width:var(--shell);margin-inline:auto;
  display:grid;grid-template-columns:1.5fr 1fr 1.35fr 1.1fr;
  gap:clamp(24px,3vw,52px);
}
.footer-col{min-width:0}
.footer-col--brand{max-width:34ch}
.brand--footer{margin-bottom:14px}
.brand--footer .brand__name{font-size:18px}
.footer-title{
  font-family:var(--font-mono);font-size:11px;font-weight:700;
  letter-spacing:.18em;color:var(--violet);margin-bottom:16px;line-height:1.4;
}
.footer-note{font-size:14px;line-height:1.75;color:var(--text-2)}
.footer-batch{
  display:inline-flex;align-items:center;gap:10px;margin-top:16px;
  font-family:var(--font-mono);font-size:12px;
}
.footer-batch__key{color:var(--text-3);letter-spacing:.14em;font-size:11px}
.footer-batch .num{font-size:20px;color:var(--green);text-shadow:0 0 12px rgba(53,247,155,.45)}
.footer-links li + li{margin-top:10px}
.footer-links a{
  display:inline-block;font-size:14px;color:var(--text-2);
  transition:color var(--dur-fast) var(--ease),padding-left var(--dur-fast) var(--ease);
}
.footer-links a:hover,.footer-links a:focus-visible{color:var(--green);padding-left:6px}
.footer-links--inline li + li{margin-top:8px}
.contact-list li + li{margin-top:12px}
.contact-key{
  display:inline-block;min-width:44px;margin-right:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--text-3);
}
.contact-val{font-size:14px;color:var(--text-2);word-break:break-word}
.footer-icp{font-family:var(--font-mono);font-size:13px;letter-spacing:.04em;color:var(--text-2);margin-bottom:16px}
.footer-ruler{
  width:var(--shell);margin:clamp(32px,4vw,56px) auto 0;height:8px;
  border-top:1px solid var(--line);
  background-image:repeating-linear-gradient(to right,var(--line) 0 1px,transparent 1px 18px);
  opacity:.85;
}
.footer-bottom{
  width:var(--shell);margin-inline:auto;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 0 30px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--text-3);
}
.footer-copy{color:var(--text-3)}
.footer-tick{color:var(--text-3)}
/* ---------- shared building blocks ---------- */
.section{padding-block:clamp(48px,7vw,104px)}
.section--tight{padding-block:clamp(30px,4vw,56px)}
.section__head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:clamp(20px,3vw,36px);
}
.section__title{font-size:clamp(26px,3.4vw,42px);font-weight:800;letter-spacing:-.02em}
.section__desc{max-width:54ch;font-size:15px;color:var(--text-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;margin-bottom:14px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;color:var(--violet);
}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor}
.title-display{
  font-size:clamp(40px,7.4vw,104px);
  font-weight:300;letter-spacing:-.03em;line-height:1.02;color:var(--text);
}
.title-display em{font-style:normal;font-weight:800;color:var(--green)}
.lead{max-width:56ch;font-size:clamp(16px,1.6vw,19px);line-height:1.8;color:var(--text-2)}
.grid{display:grid;gap:clamp(16px,2vw,28px)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr))}
.grid--4{grid-template-columns:repeat(auto-fit,minmax(min(100%,196px),1fr))}
.card{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:clamp(18px,2vw,26px);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.card:hover,.card:focus-within{
  transform:translateY(-4px);
  border-color:rgba(53,247,155,.5);
  box-shadow:0 16px 44px -24px rgba(53,247,155,.5);
}
.card__more{
  display:inline-block;margin-top:14px;
  font-size:13px;font-weight:600;color:var(--green);
  opacity:0;transform:translateY(4px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.card:hover .card__more,.card:focus-within .card__more{opacity:1;transform:none}
.panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  padding:clamp(22px,3vw,40px);
}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.02);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;line-height:1.6;color:var(--text-2);
}
.tag--green{color:var(--green);border-color:rgba(53,247,155,.4);background:rgba(53,247,155,.08)}
.tag--violet{color:var(--violet);border-color:rgba(138,107,255,.42);background:rgba(138,107,255,.1)}
.tag--orange{color:var(--orange);border-color:rgba(255,122,47,.42);background:rgba(255,122,47,.1)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-pill);
  border:1px solid transparent;font-size:15px;font-weight:600;line-height:1.4;
  cursor:pointer;transition:background var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease),box-shadow var(--dur-fast) var(--ease);
}
.btn--primary{background:var(--green);color:var(--ink-900)}
.btn--primary:hover,.btn--primary:focus-visible{box-shadow:0 0 0 6px rgba(53,247,155,.16)}
.btn--ghost{border-color:var(--line);color:var(--text)}
.btn--ghost:hover,.btn--ghost:focus-visible{border-color:var(--green);color:var(--green);background:rgba(53,247,155,.07)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  appearance:none;cursor:pointer;
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:transparent;
  color:var(--text-2);font-size:13px;font-weight:500;line-height:1.5;
  transition:color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease),background var(--dur-fast) var(--ease);
}
.chip:hover{border-color:var(--text-3);color:var(--text)}
.chip[aria-pressed="true"]{background:var(--green);border-color:var(--green);color:var(--ink-900);font-weight:700}
.result-count{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--text-3);
}
.result-count [data-filter-count]{color:var(--green);font-size:15px;font-weight:700}
.breadcrumb{width:var(--shell);margin:26px auto 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;color:var(--text-3)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:var(--line)}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover,.breadcrumb a:focus-visible{color:var(--green)}
.breadcrumb [aria-current="page"]{color:var(--text)}
.prose{max-width:74ch;font-size:17px;line-height:1.78;color:var(--text-2)}
.prose > * + *{margin-top:1.2em}
.prose h2{margin-top:2em;font-size:clamp(24px,3vw,34px);color:var(--text)}
.prose h3{margin-top:1.6em;font-size:clamp(19px,2.2vw,24px);color:var(--text)}
.prose strong{color:var(--text)}
.prose a{color:var(--green);border-bottom:1px solid rgba(53,247,155,.4)}
.prose ul,.prose ol{padding-left:0}
.prose li{position:relative;padding-left:20px}
.prose li + li{margin-top:.5em}
.prose li::before{content:"";position:absolute;left:0;top:.8em;width:8px;height:1px;background:var(--violet)}
/* ---------- media containers ---------- */
.media{
  position:relative;overflow:hidden;isolation:isolate;
  border:1px solid var(--line);border-radius:var(--r-card);
  aspect-ratio:16/10;
  background:
    radial-gradient(120% 130% at 10% 0%,rgba(138,107,255,.22),transparent 58%),
    linear-gradient(150deg,#121A22,var(--ink-900) 68%);
}
.media > img,.media > picture > img{width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:4/5}
.media--square{aspect-ratio:1/1}
.media--cut{border-radius:var(--r-card) 2px var(--r-card) 2px}
.media__badge{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(6,8,11,.74);border:1px solid rgba(53,247,155,.42);
  color:var(--green);font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;line-height:1.6;
}
.media__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:16px;font-size:13px;color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(6,8,11,.92));
}
.media__fallback{
  position:absolute;inset:0;display:grid;place-items:center;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;color:var(--text-3);
  background-image:repeating-linear-gradient(135deg,rgba(30,42,51,.6) 0 2px,transparent 2px 11px);
}
/* ---------- responsive ---------- */
@media (max-width:1180px){
  .header-inner{min-height:64px;gap:12px}
  .site-header[data-scrolled="true"] .header-inner{min-height:56px}
  .nav-toggle{display:inline-flex}
  .channel-state{display:none}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;
    display:none;flex:0 0 auto;
    background:rgba(14,19,25,.98);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:10px var(--gutter) 22px;
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
  }
  .site-nav[data-open="true"]{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{padding:14px 16px;border-radius:14px;font-size:16px;justify-content:flex-start}
  .nav-index{font-size:11px}
}
@media (max-width:980px){
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .header-inner{justify-content:space-between}
  .batch-badge{display:none}
  .header-aside{gap:8px}
  .brand__name{font-size:16px}
  .footer-inner{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .title-display{font-size:clamp(34px,11vw,56px)}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
  }
  .card:hover,.card:focus-within{transform:none}
  .card__more{opacity:1;transform:none}
}