:root{
  --ink:#06110D;
  --panel:#101614;
  --moss:#2F4A3A;
  --stone:#6F7F77;
  --paper:#F2F0E6;
  --lime:#C6FF3D;
  --lime-soft:#E8FFA8;
  --ember:#FF7A2F;
  --clay:#B4643C;
  --mist:#DDE5DF;
  --line:rgba(111,127,119,.30);
  --line-strong:rgba(111,127,119,.52);
  --shadow:0 22px 48px -32px rgba(0,0,0,.95);
  --ease:cubic-bezier(.2,.7,.2,1);
  --max:1440px;
  --gutter:clamp(18px,4vw,48px);
  --font-display:"Oswald","Archivo Narrow","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-numeric:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,"Courier New",monospace;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;text-size-adjust:100%;}

body{
  margin:0;
  background-color:var(--ink);
  background-image:
    linear-gradient(rgba(111,127,119,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(111,127,119,.055) 1px,transparent 1px);
  background-size:72px 72px;
  color:var(--mist);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}

body.is-nav-open{overflow:hidden;}

h1,h2,h3,h4,p,figure,ul,ol{margin:0;}
ul,ol{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;}
::selection{background:rgba(198,255,61,.28);color:#F2F0E6;}

:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:3px;
  border-radius:1px;
}

.visually-hidden{
  position:absolute;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}

/* ---------- 布局基础 ---------- */
.container{
  width:100%;
  max-width:var(--max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.section{padding-block:clamp(48px,7vw,96px);}

.section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px 32px;
  margin-bottom:clamp(24px,3vw,40px);
}

.kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-numeric);
  font-size:11px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--lime);
}
.kicker::before{content:"";width:18px;height:1px;background:currentColor;}

.section__title{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(1.6rem,2.6vw,2.6rem);
  line-height:1.14;
  letter-spacing:-.01em;
  color:var(--paper);
  margin-top:8px;
}

.section__note{
  font-size:13px;
  line-height:1.7;
  color:var(--stone);
  max-width:48ch;
}

.grid{display:grid;gap:clamp(16px,2vw,24px);}
.grid--7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr);}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}

/* ---------- 框景与面板 ---------- */
.frame{position:relative;border:1px solid var(--line);}
.frame::before,.frame::after{
  content:"";position:absolute;width:14px;height:14px;
  border:1px solid rgba(198,255,61,.85);pointer-events:none;
}
.frame::before{top:-1px;left:-1px;border-right:0;border-bottom:0;}
.frame::after{bottom:-1px;right:-1px;border-left:0;border-top:0;}

.panel{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.panel__head{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:14px 18px;border-bottom:1px solid var(--line);
}
.panel__title{
  font-family:var(--font-display);font-weight:700;font-size:14px;
  letter-spacing:.12em;text-transform:uppercase;color:var(--paper);
}
.panel__body{padding:18px;}

/* ---------- 图片与视频封面容器 ---------- */
.media{
  position:relative;overflow:hidden;
  background:var(--moss);
  border:1px solid var(--line);
  aspect-ratio:16 / 9;
}
.media--wide{aspect-ratio:21 / 9;}
.media--tall{aspect-ratio:4 / 5;}
.media__img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.92) contrast(1.06);
  transition:transform 220ms var(--ease);
}
.media__tag{
  position:absolute;left:12px;bottom:12px;
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;
  background:rgba(6,17,13,.74);
  border:1px solid rgba(198,255,61,.42);
  color:var(--lime);
  font-family:var(--font-numeric);
  font-size:11px;letter-spacing:.08em;
}
.media__tag--ember{border-color:rgba(255,122,47,.52);color:var(--ember);}

/* ---------- 数字与标签 ---------- */
.num{
  font-family:var(--font-numeric);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  letter-spacing:-.02em;
  color:var(--paper);
  line-height:1;
}
.num--xl{font-size:clamp(2.4rem,6vw,6rem);}
.num__unit{
  font-family:var(--font-body);
  font-size:12px;font-weight:500;
  letter-spacing:.12em;
  color:var(--stone);
  margin-left:6px;
}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 8px;
  border:1px solid var(--line-strong);
  color:var(--mist);
  font-size:11px;letter-spacing:.12em;line-height:1.4;
}
.tag--lime{border-color:rgba(198,255,61,.45);color:var(--lime);}
.tag--ember{border-color:rgba(255,122,47,.52);color:var(--ember);}
.tag__dot{width:5px;height:5px;border-radius:50%;background:currentColor;}

/* ---------- 长文阅读 ---------- */
.prose{
  max-width:70ch;
  font-size:clamp(15px,1.05vw,17px);
  line-height:1.85;
  color:rgba(221,229,223,.86);
}
.prose > * + *{margin-top:1.1em;}
.prose h2,.prose h3{
  font-family:var(--font-display);
  color:var(--paper);
  line-height:1.25;
  letter-spacing:-.005em;
}
.prose h2{font-size:clamp(1.35rem,1.9vw,1.75rem);margin-top:1.9em;}
.prose h3{font-size:clamp(1.1rem,1.4vw,1.25rem);margin-top:1.6em;}
.prose ul,.prose ol{padding-left:1.2em;list-style:disc;}
.prose ol{list-style:decimal;}
.prose li + li{margin-top:.4em;}
.prose a{color:var(--lime);text-decoration:underline;text-underline-offset:4px;}
.prose strong{color:var(--paper);}

.prose--paper{
  background:var(--paper);
  color:#1A211C;
  padding:clamp(24px,4vw,48px);
  border:1px solid rgba(6,17,13,.14);
}
.prose--paper h2,.prose--paper h3,.prose--paper strong{color:#0C1712;}
.prose--paper a{color:#1F5A34;}

.lede{
  font-size:clamp(16px,1.35vw,19px);
  line-height:1.8;
  color:rgba(221,229,223,.92);
  max-width:60ch;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;
  border:1px solid transparent;border-radius:1px;
  font-family:var(--font-body);
  font-size:13px;font-weight:700;letter-spacing:.04em;
  text-decoration:none;cursor:pointer;
  transition:background-color 160ms var(--ease),color 160ms var(--ease),border-color 160ms var(--ease);
}
.btn--ember{background:var(--ember);color:#180A02;}
.btn--ember:hover{background:#FF9457;}
.btn--lime{background:var(--lime);color:#0A1603;}
.btn--lime:hover{background:var(--lime-soft);}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--mist);}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime);}
.btn--link{
  background:none;border:0;padding:0;
  color:var(--lime);text-decoration:underline;
  text-underline-offset:5px;text-decoration-thickness:1px;
}
.btn--link:hover{color:var(--lime-soft);}

/* ---------- 面包屑 ---------- */
.breadcrumb{margin-bottom:clamp(20px,3vw,32px);}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;}
.breadcrumb__item{display:flex;align-items:center;gap:8px;color:var(--stone);}
.breadcrumb__item:not(:last-child)::after{content:"/";color:rgba(111,127,119,.7);}
.breadcrumb__link{color:rgba(221,229,223,.78);}
.breadcrumb__link:hover{color:var(--lime);}
.breadcrumb__item[aria-current="page"]{color:var(--lime);}

/* ---------- 页头 ---------- */
.skip-link{
  position:absolute;left:var(--gutter);top:0;z-index:300;
  transform:translateY(-140%);
  background:var(--lime);color:#07120B;
  padding:10px 18px;font-size:13px;font-weight:700;letter-spacing:.06em;
  transition:transform 160ms var(--ease);
}
.skip-link:focus{transform:translateY(0);}

.site-header{
  position:sticky;top:0;z-index:90;
  background-color:transparent;
  border-bottom:1px solid transparent;
  transition:background-color 200ms var(--ease),border-color 200ms var(--ease);
}
.site-header::after{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(180deg,rgba(6,17,13,.86),rgba(6,17,13,0));
  transition:opacity 200ms var(--ease);
}
.site-header[data-state="solid"]{
  background-color:rgba(6,17,13,.95);
  border-bottom-color:var(--line);
}
.site-header[data-state="solid"]::after{opacity:0;}
@supports (backdrop-filter:blur(2px)){
  .site-header[data-state="solid"]{backdrop-filter:blur(12px) saturate(1.1);}
}

.topline{
  background:rgba(10,23,18,.72);
  border-bottom:1px solid rgba(111,127,119,.2);
  font-size:12px;
}
.topline__inner{
  max-width:var(--max);margin-inline:auto;
  padding:6px var(--gutter);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  color:var(--stone);
}
.topline__status{display:flex;align-items:center;gap:8px;letter-spacing:.06em;}
.topline__meta{letter-spacing:.06em;white-space:nowrap;}
.status-dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--lime);
  box-shadow:0 0 0 3px rgba(198,255,61,.16);
  flex:0 0 auto;
  animation:bs-pulse 2.4s var(--ease) infinite;
}
@keyframes bs-pulse{0%,100%{opacity:1;}50%{opacity:.32;}}

.header__inner{
  max-width:var(--max);margin-inline:auto;
  padding:0 var(--gutter);
  min-height:76px;
  display:flex;align-items:center;gap:clamp(16px,2.4vw,40px);
}

.brand{
  display:flex;flex-direction:column;gap:3px;flex:0 0 auto;
  color:var(--paper);
  transition:color 160ms var(--ease);
}
.brand:hover{color:var(--lime-soft);}
.brand__mark{
  font-family:var(--font-display);
  font-weight:800;font-size:22px;line-height:1;
  letter-spacing:.01em;
}
.brand__dot{color:var(--lime);}
.brand__sub{
  font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--stone);
}

.nav{
  display:flex;align-items:center;
  gap:clamp(12px,2vw,30px);
  margin-left:auto;
}
.nav__crest{display:none;}
.nav__cluster{display:flex;align-items:center;gap:10px;}
.nav__label{
  font-size:9px;font-weight:700;
  letter-spacing:.2em;text-transform:uppercase;
  color:var(--stone);
  white-space:nowrap;
}
.nav__list{display:flex;align-items:center;gap:clamp(10px,1.4vw,18px);}
.nav__link{
  position:relative;
  display:inline-block;
  padding:8px 2px;
  font-size:14px;
  color:var(--mist);
  white-space:nowrap;
  transition:color 160ms var(--ease);
}
.nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--lime);
  transform:scaleX(0);transform-origin:left;
  transition:transform 180ms var(--ease);
}
.nav__link:hover{color:#FFFFFF;}
.nav__link:hover::after{transform:scaleX(1);}
.nav__link[aria-current="page"]{color:var(--lime);}
.nav__link[aria-current="page"]::after{transform:scaleX(1);}

.header__actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.header__cta{white-space:nowrap;}

.nav-toggle{
  display:none;
  align-items:center;gap:9px;
  padding:9px 14px;
  background:rgba(16,22,20,.7);
  border:1px solid var(--line-strong);
  border-radius:1px;
  color:var(--mist);
  font-size:12px;letter-spacing:.1em;
  cursor:pointer;
  transition:border-color 160ms var(--ease),color 160ms var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime);}
.nav-toggle__bars{display:flex;flex-direction:column;gap:3px;justify-content:center;width:16px;}
.nav-toggle__bars > span{
  display:block;height:1.5px;width:100%;
  background:currentColor;
  transition:transform 180ms var(--ease),opacity 180ms var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars > span:nth-child(1){transform:translateY(4.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars > span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars > span:nth-child(3){transform:translateY(-4.5px) rotate(-45deg);}

.scroll-meter{
  position:absolute;left:0;right:0;bottom:-1px;z-index:2;
  height:2px;background:transparent;pointer-events:none;
  opacity:0;transition:opacity 200ms var(--ease);
}
.site-header[data-state="solid"] .scroll-meter{opacity:1;}
.scroll-meter__bar{
  display:block;width:100%;height:100%;
  background:linear-gradient(90deg,var(--lime),var(--ember));
  transform:scaleX(0);transform-origin:left center;
  will-change:transform;
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,7vw,96px);
  background:#08120E;
  border-top:1px solid var(--line);
  color:var(--stone);
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(90deg,rgba(111,127,119,.075) 1px,transparent 1px);
  background-size:88px 100%;
}
.footer__inner{
  position:relative;z-index:1;
  max-width:var(--max);margin-inline:auto;
  padding:clamp(40px,5.5vw,80px) var(--gutter) 0;
}
.footer__top{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,2fr) minmax(0,1.15fr);
  gap:clamp(28px,4vw,64px);
  padding-bottom:clamp(32px,4vw,56px);
}
.footer__identity .brand{margin-bottom:18px;}
.footer__summary{
  font-size:14px;line-height:1.85;
  color:rgba(221,229,223,.72);
  max-width:34ch;
  margin-bottom:18px;
}
.footer__android{
  display:inline-block;
  font-size:13px;letter-spacing:.02em;
  color:var(--lime);
  text-decoration:underline;
  text-underline-offset:5px;
  text-decoration-thickness:1px;
  text-decoration-color:rgba(198,255,61,.5);
  transition:color 160ms var(--ease);
}
.footer__android:hover{color:var(--lime-soft);}

.footer__nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(18px,2.4vw,32px);
}
.footer__heading{
  font-family:var(--font-display);
  font-weight:700;font-size:12px;
  letter-spacing:.18em;text-transform:uppercase;
  color:var(--paper);
  margin-bottom:14px;
}
.footer__list{display:flex;flex-direction:column;gap:10px;}
.footer__link{
  font-size:14px;
  color:rgba(221,229,223,.72);
  transition:color 160ms var(--ease);
}
.footer__link:hover{color:var(--lime);}

.footer__contact-list{display:grid;gap:12px;}
.footer__contact-key{
  display:block;
  font-size:10px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--stone);
  margin-bottom:2px;
}
.footer__contact-value{
  display:block;
  font-size:13.5px;line-height:1.6;
  color:var(--mist);
  word-break:break-word;
}
.footer__note{
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid rgba(111,127,119,.22);
  font-size:12px;line-height:1.75;
  color:rgba(111,127,119,.95);
}

.footer__bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 28px;
  border-top:1px solid rgba(111,127,119,.24);
  padding:20px 0 28px;
  font-size:12px;letter-spacing:.06em;
}
.footer__legal{color:rgba(221,229,223,.6);}
.footer__icp{font-family:var(--font-numeric);color:var(--stone);}
.footer__legal-links{display:flex;flex-wrap:wrap;gap:16px;}
.footer__legal-link{
  color:rgba(221,229,223,.66);
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-color:rgba(111,127,119,.6);
  transition:color 160ms var(--ease);
}
.footer__legal-link:hover{color:var(--lime);}

/* ---------- 渐显 ---------- */
[data-reveal]{transition:opacity 320ms var(--ease),transform 320ms var(--ease);}
[data-reveal].is-pending{opacity:0;transform:translateY(14px);}

/* ---------- 平板 ---------- */
@media (max-width:1079px){
  .header__inner{min-height:64px;gap:12px;}
  .header__actions{margin-left:auto;}
  .nav-toggle{display:inline-flex;}

  .nav{
    position:fixed;
    left:0;right:0;bottom:0;top:auto;
    z-index:120;
    margin-left:0;
    display:flex;flex-direction:column;align-items:stretch;
    gap:0;
    max-height:calc(100vh - 96px);
    overflow-y:auto;
    padding:18px var(--gutter) calc(20px + env(safe-area-inset-bottom));
    background:rgba(8,18,14,.985);
    border-top:1px solid rgba(198,255,61,.28);
    box-shadow:0 -28px 60px -32px rgba(0,0,0,.95);
    transform:translateY(112%);
    transition:transform 220ms var(--ease);
  }
  .nav[data-open="true"]{transform:translateY(0);}

  .nav__crest{
    display:flex;align-items:baseline;gap:12px;
    padding-bottom:14px;margin-bottom:6px;
    border-bottom:1px solid rgba(198,255,61,.22);
  }
  .nav__crest strong{
    font-family:var(--font-display);font-weight:800;
    font-size:20px;line-height:1;color:var(--paper);
  }
  .nav__crest span{
    font-size:11px;letter-spacing:.18em;color:var(--stone);
  }

  .nav__cluster{
    display:grid;
    grid-template-columns:64px minmax(0,1fr);
    align-items:start;
    gap:12px;
    padding:14px 0;
    border-bottom:1px solid rgba(111,127,119,.18);
  }
  .nav__label{font-size:11px;letter-spacing:.22em;padding-top:9px;}
  .nav__list{flex-direction:column;align-items:stretch;gap:2px;}
  .nav__link{font-size:17px;padding:9px 0;white-space:normal;}
  .nav__link::after{display:none;}
  .nav__link[aria-current="page"]{padding-left:16px;}
  .nav__link[aria-current="page"]::before{
    content:"";position:absolute;left:0;top:50%;
    width:9px;height:2px;background:var(--lime);
    transform:translateY(-50%);
  }

  .grid--7-5,.grid--3{grid-template-columns:minmax(0,1fr);}
  .footer__top{grid-template-columns:minmax(0,1fr) minmax(0,1fr);}
  .footer__contact{grid-column:1 / -1;}
}

/* ---------- 手机 ---------- */
@media (max-width:719px){
  body{background-size:56px 56px;}
  .topline{font-size:11px;}
  .topline__meta{display:none;}
  .header__inner{min-height:60px;}
  .brand__mark{font-size:19px;}
  .brand__sub{font-size:9px;letter-spacing:.12em;}
  .header__cta{padding:9px 14px;font-size:12px;}
  .nav-toggle{padding:8px 11px;font-size:11px;}

  .grid--2{grid-template-columns:minmax(0,1fr);}
  .footer__top{grid-template-columns:minmax(0,1fr);}
  .footer__nav{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer__contact{grid-column:auto;}
  .footer__bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .footer__legal-links{gap:14px;}
}

@media (max-width:419px){
  .header__cta{display:none;}
}

/* ---------- 动效退让 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .status-dot{animation:none;}
  [data-reveal],[data-reveal].is-pending{opacity:1;transform:none;}
  .scroll-meter__bar{transition:none;}
}