:root{
  --ink:#0A1210;
  --deep:#0F2E27;
  --deep-2:#0B211C;
  --glass:rgba(24,64,55,.55);
  --glass-soft:rgba(24,64,55,.32);
  --cyan:#3AF2CE;
  --orange:#FF7A2F;
  --violet:#7A5CFF;
  --paper:#E9F6F1;
  --mist:#93ADA6;
  --amber:#FFC24B;
  --line:#1E3E36;
  --line-soft:rgba(30,62,54,.72);
  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","IBM Plex Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --shell:1440px;
  --gutter:48px;
  --rail:220px;
  --radius:14px;
  --radius-sm:8px;
  --header-h:80px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  background-color:var(--ink);
  background-image:
    radial-gradient(120% 80% at 78% -10%,rgba(58,242,206,.10),transparent 60%),
    radial-gradient(90% 70% at 0% 100%,rgba(122,92,255,.10),transparent 65%),
    linear-gradient(rgba(30,62,54,.26) 1px,transparent 1px),
    linear-gradient(90deg,rgba(30,62,54,.26) 1px,transparent 1px);
  background-size:auto,auto,32px 32px,32px 32px;
  background-attachment:fixed;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
img,svg,video{display:block;max-width:100%}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;line-height:1.08;letter-spacing:-.02em;color:var(--paper)}
h1{font-size:clamp(48px,8vw,120px);line-height:1.02}
h2{font-size:clamp(30px,4.4vw,56px)}
h3{font-size:clamp(22px,2.4vw,28px);line-height:1.2}
p{max-width:68ch}
strong{font-weight:700}
[hidden]{display:none !important}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}
::selection{background:rgba(58,242,206,.28);color:#04120E}

/* ===== 跳转链接 ===== */
.jbs-skip{
  position:absolute;left:16px;top:-120px;z-index:300;
  padding:10px 18px;border-radius:0 0 10px 10px;
  background:var(--cyan);color:#04120E;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;
  transition:top .18s var(--ease);
}
.jbs-skip:focus{top:0}

/* ===== 头部 ===== */
.jbs-header{
  position:sticky;top:0;z-index:100;
  background:rgba(10,18,16,.86);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);
  backdrop-filter:blur(14px) saturate(1.2);
  border-bottom:1px solid var(--line);
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.jbs-header[data-scrolled="true"]{
  background:rgba(9,20,17,.95);
  border-bottom-color:rgba(58,242,206,.30);
}
.jbs-header__inner{
  width:min(var(--shell),100% - var(--gutter)*2);
  margin-inline:auto;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:var(--header-h);
  padding-block:14px;
  transition:min-height .24s var(--ease),padding .24s var(--ease);
}
.jbs-header[data-scrolled="true"] .jbs-header__inner{min-height:56px;padding-block:8px}

.jbs-brand{display:flex;align-items:center;gap:18px;min-width:0}
.jbs-brand__link{display:flex;align-items:center;gap:12px;min-width:0}
.jbs-brand__mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;flex:0 0 auto;
  border:1px solid rgba(58,242,206,.5);border-radius:9px;
  background:radial-gradient(120% 120% at 30% 20%,rgba(58,242,206,.22),rgba(15,46,39,.72));
  box-shadow:inset 0 0 12px rgba(58,242,206,.18);
  font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--cyan);
}
.jbs-brand__text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.jbs-brand__name{
  font-family:var(--font-display);font-weight:900;font-size:19px;
  letter-spacing:.01em;color:var(--paper);white-space:nowrap;
}
.jbs-brand__sub{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--mist);white-space:nowrap;
}
.jbs-status{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px 5px 10px;border:1px solid var(--line);border-radius:999px;
  background:var(--glass-soft);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--mist);
  white-space:nowrap;line-height:1.4;
}
.jbs-status__dot{
  width:7px;height:7px;border-radius:50%;flex:0 0 auto;
  background:var(--cyan);box-shadow:0 0 0 3px rgba(58,242,206,.16);
  animation:jbs-pulse 2.6s var(--ease) infinite;
}
.jbs-status__text{display:inline-block}
@keyframes jbs-pulse{
  0%,100%{opacity:1;box-shadow:0 0 0 3px rgba(58,242,206,.16)}
  50%{opacity:.55;box-shadow:0 0 0 6px rgba(58,242,206,.04)}
}

.jbs-nav{display:flex;align-items:center;gap:10px}
.jbs-nav__list{display:flex;align-items:center;gap:2px}
.jbs-nav__item{position:relative}
.jbs-nav__link{
  display:inline-block;padding:9px 12px;border-radius:6px;
  font-size:14px;letter-spacing:.02em;color:var(--paper);opacity:.82;
  transition:color .18s var(--ease),background .18s var(--ease),opacity .18s var(--ease);
}
.jbs-nav__link:hover{color:var(--cyan);opacity:1;background:rgba(58,242,206,.08)}
.jbs-nav__link[aria-current="page"]{color:var(--cyan);opacity:1}
.jbs-nav__link[aria-current="page"]::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--cyan);border-radius:2px;
}
.jbs-nav__cta{margin-left:10px}

.jbs-navtoggle{
  display:none;width:44px;height:40px;flex:0 0 auto;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  border:1px solid var(--line);border-radius:8px;background:var(--glass-soft);
  transition:border-color .18s var(--ease);
}
.jbs-navtoggle:hover{border-color:rgba(58,242,206,.5)}
.jbs-navtoggle__bar{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--paper);
  transition:transform .22s var(--ease),opacity .18s var(--ease);
}
.jbs-navtoggle[aria-expanded="true"] .jbs-navtoggle__bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.jbs-navtoggle[aria-expanded="true"] .jbs-navtoggle__bar:nth-child(2){opacity:0}
.jbs-navtoggle[aria-expanded="true"] .jbs-navtoggle__bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.jbs-progress{
  position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform .12s linear;
  pointer-events:none;z-index:2;opacity:.92;
}

/* ===== 按钮 ===== */
.jbs-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:8px;border:1px solid transparent;
  font-family:var(--font-mono);font-size:13px;font-weight:600;letter-spacing:.08em;
  transition:transform .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.jbs-btn--primary{
  background:var(--cyan);color:#04120E;
  box-shadow:0 0 0 1px rgba(58,242,206,.35),0 10px 26px -14px rgba(58,242,206,.9);
}
.jbs-btn--primary:hover{background:#6BFFDF;transform:translateY(-1px)}
.jbs-btn--primary:active{transform:translateY(0)}
.jbs-btn--ghost{border-color:var(--line);background:var(--glass-soft);color:var(--paper)}
.jbs-btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}

/* ===== 页脚 ===== */
.jbs-footer{
  background:linear-gradient(180deg,var(--deep-2),var(--ink) 58%);
  border-top:1px solid var(--line);
  margin-top:0;
}
.jbs-footer__inner{
  width:min(var(--shell),100% - var(--gutter)*2);
  margin-inline:auto;
  padding-block:64px 32px;
}
.jbs-footer__grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px 32px;
  padding-bottom:40px;border-bottom:1px solid var(--line-soft);
}
.jbs-footer__brand{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.jbs-footer__name{
  font-family:var(--font-display);font-weight:900;font-size:20px;
  letter-spacing:.01em;color:var(--paper);line-height:1.2;
}
.jbs-footer__tagline{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--mist);
}
.jbs-footer__col{display:flex;flex-direction:column;gap:14px;min-width:0}
.jbs-footer__title{
  font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;color:var(--cyan);line-height:1.4;
}
.jbs-footer__list{display:flex;flex-direction:column;gap:9px;min-width:0}
.jbs-footer__link{
  display:inline-block;font-size:14px;color:var(--paper);opacity:.78;
  transition:color .18s var(--ease),opacity .18s var(--ease),transform .18s var(--ease);
}
.jbs-footer__link:hover{color:var(--cyan);opacity:1;transform:translateX(4px)}
.jbs-footer__meta{
  font-family:var(--font-mono);font-size:13px;line-height:1.7;
  color:var(--mist);word-break:break-word;
}
.jbs-footer__note{font-size:13px;line-height:1.8;color:var(--mist);max-width:34ch}
.jbs-legal{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  color:var(--mist);word-break:break-all;
}
.jbs-feedback{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin-top:28px;padding:18px 22px;
  border:1px solid var(--line);border-left:3px solid var(--orange);border-radius:var(--radius-sm);
  background:var(--glass-soft);
}
.jbs-feedback__text{font-size:14px;line-height:1.7;color:var(--paper);opacity:.9;max-width:62ch}
.jbs-footer__base{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;
  padding-top:24px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--mist);
}
.jbs-footer__base p{max-width:none}

/* ===== 容器与网格 ===== */
.jbs-shell{width:min(var(--shell),100% - var(--gutter)*2);margin-inline:auto}
.jbs-section{padding-block:clamp(56px,7vw,112px);position:relative}
.jbs-section--tight{padding-block:clamp(32px,4vw,64px)}
.jbs-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:16px}

/* ===== 面板与卡片 ===== */
.jbs-panel{
  position:relative;overflow:hidden;
  padding:24px;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(24,64,55,.62),rgba(15,46,39,.92));
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.jbs-panel::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(58,242,206,.055) 0 1px,transparent 1px 4px);
  opacity:.55;mix-blend-mode:screen;
}
.jbs-panel > *{position:relative;z-index:1}
.jbs-card{
  padding:20px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--glass-soft);
  transition:border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.jbs-card:hover{border-color:rgba(58,242,206,.55);transform:translateY(-2px);background:rgba(24,64,55,.42)}

/* ===== 索引与标签 ===== */
.jbs-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--cyan);line-height:1.4;
}
.jbs-kicker::before{content:"";width:18px;height:1px;background:currentColor;opacity:.85}
.jbs-kicker--signal{color:var(--orange)}
.jbs-tag{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 9px;border:1px solid currentColor;border-radius:4px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--violet);line-height:1.5;
}
.jbs-tag--cyan{color:var(--cyan)}
.jbs-tag--orange{color:var(--orange)}

/* ===== 数据 ===== */
.jbs-stat{display:flex;flex-direction:column;gap:4px}
.jbs-stat__value{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:clamp(28px,3vw,44px);font-weight:700;line-height:1.1;color:var(--cyan);
  letter-spacing:-.01em;
}
.jbs-stat__label{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--mist);line-height:1.4;
}

/* ===== 筛选 chips ===== */
.jbs-filters{display:flex;flex-wrap:wrap;gap:8px}
.jbs-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border:1px solid var(--line);border-radius:999px;
  background:var(--glass-soft);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--mist);
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.jbs-chip:hover{color:var(--paper);border-color:rgba(58,242,206,.42)}
.jbs-chip[aria-pressed="true"]{background:rgba(58,242,206,.14);border-color:var(--cyan);color:var(--cyan)}

/* ===== 图片容器 ===== */
.jbs-media{
  position:relative;overflow:hidden;isolation:isolate;
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(150deg,var(--deep),#06100D);
  aspect-ratio:16/10;
}
.jbs-media img{
  width:100%;height:100%;object-fit:cover;
  filter:brightness(.78) contrast(1.06) saturate(.72);
}
.jbs-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(180deg,rgba(58,242,206,.14),rgba(10,18,16,.58) 72%),
    repeating-linear-gradient(0deg,rgba(0,0,0,.22) 0 1px,transparent 1px 3px);
}
.jbs-media--wide{aspect-ratio:21/9}
.jbs-media--tall{aspect-ratio:4/5}
.jbs-media--square{aspect-ratio:1/1}
.jbs-media__caption{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--paper);opacity:.85;
}

/* ===== 正文与面包屑 ===== */
.jbs-prose{max-width:68ch}
.jbs-prose p{margin-bottom:1.1em;color:var(--paper)}
.jbs-prose p:last-child{margin-bottom:0}
.jbs-prose ul,.jbs-prose ol{display:flex;flex-direction:column;gap:9px;margin-bottom:1.2em}
.jbs-prose li{position:relative;padding-left:20px;color:var(--paper)}
.jbs-prose li::before{
  content:"";position:absolute;left:0;top:.78em;width:8px;height:1px;background:var(--cyan);
}
.jbs-prose strong{color:var(--cyan);font-weight:700}
.jbs-breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--mist);
}
.jbs-breadcrumb li{display:flex;align-items:center;gap:8px}
.jbs-breadcrumb li + li::before{content:"/";color:#2F5A4F}
.jbs-breadcrumb a{color:var(--mist);transition:color .18s var(--ease)}
.jbs-breadcrumb a:hover{color:var(--cyan)}
.jbs-breadcrumb [aria-current="page"]{color:var(--paper)}

/* ===== 平板 ===== */
@media (max-width:1200px){
  :root{--gutter:32px;--rail:180px}
  .jbs-footer__grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px 24px}
  .jbs-footer__brand{grid-column:1 / -1}
}
/* ===== 移动导航断点 ===== */
@media (max-width:940px){
  :root{--gutter:22px;--header-h:66px}
  .jbs-navtoggle{display:flex}
  .jbs-header .jbs-status{display:none}
  .jbs-nav{
    display:none;
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:0;
    padding:10px var(--gutter) 22px;
    background:rgba(9,20,17,.98);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 40px -24px rgba(0,0,0,.9);
  }
  .jbs-nav[data-open="true"]{display:flex}
  .jbs-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .jbs-nav__item{width:100%}
  .jbs-nav__link{
    display:block;width:100%;padding:13px 4px;font-size:15px;border-radius:0;
    border-bottom:1px solid var(--line-soft);opacity:.88;
  }
  .jbs-nav__link[aria-current="page"]::after{display:none}
  .jbs-nav__link[aria-current="page"]{
    color:var(--cyan);box-shadow:inset 2px 0 0 var(--cyan);padding-left:12px;
  }
  .jbs-nav__cta{margin:18px 0 0;width:100%}
  .jbs-grid{grid-template-columns:repeat(6,minmax(0,1fr))}
  .jbs-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:760px){
  .jbs-footer__grid{grid-template-columns:1fr;gap:28px}
  .jbs-footer__inner{padding-block:48px 26px}
  .jbs-feedback{flex-direction:column;align-items:flex-start;padding:16px 18px}
  .jbs-footer__base{flex-direction:column;gap:8px}
}
@media (max-width:600px){
  :root{--gutter:16px}
  .jbs-brand__sub{display:none}
  .jbs-brand__name{font-size:17px}
  .jbs-grid{grid-template-columns:1fr}
  .jbs-panel{padding:18px}
  .jbs-card{padding:16px}
  .jbs-footer__note{max-width:none}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .jbs-status__dot{animation:none}
  .jbs-card:hover,.jbs-footer__link:hover,.jbs-btn:hover{transform:none}
}