:root {
  --bg-void: #0A0E1A;
  --bg-panel: #111726;
  --bg-raised: #1A2233;
  --accent-lime: #C6FF3D;
  --accent-cyan: #00E5FF;
  --accent-violet: #7B61FF;
  --text-primary: #F2F5F7;
  --text-secondary: #A0A8B8;
  --text-muted: #6B7280;
  --border-subtle: rgba(255,255,255,0.12);
  --border-lime: rgba(198,255,61,0.6);
  --glass-bg: rgba(10,14,26,0.72);
  --font-heading: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", monospace;
  --header-h: 68px;
  --content-w: 1280px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow-float: 0 16px 40px rgba(0,0,0,0.45);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  min-height: 100vh;
  background: var(--bg-void);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  padding-top: 100px;
  overflow-x: hidden;
}
img, svg, video, canvas { display: block; max-width: 100%; height: auto; }
a { color: var(--accent-cyan); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--accent-lime); }
button { font-family: inherit; font-size: inherit; background: none; border: none; cursor: pointer; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); line-height: 1.25; font-weight: 800; letter-spacing: -0.02em; }
h1 { font-size: clamp(32px, 5vw, 48px); }
h2 { font-size: clamp(24px, 3vw, 32px); }
h3 { font-size: clamp(18px, 2vw, 24px); }
p { margin-bottom: 0.5em; }
::selection { background: var(--accent-lime); color: #0A0E1A; }
:focus-visible { outline: 2px solid var(--accent-cyan); outline-offset: 3px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}
.jj-container { width: min(100% - 48px, 1280px); margin-inline: auto; }
@media (max-width: 640px) { .jj-container { width: calc(100% - 32px); } }
.jj-section { padding: 80px 0; }
.jj-section--tight { padding: 40px 0; }
.jj-section-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 24px; }
.jj-section-head__index { font-family: var(--font-mono); font-size: 14px; color: var(--accent-cyan); font-weight: 700; letter-spacing: 0.06em; }
.jj-section-head__title { font-family: var(--font-heading); font-size: 28px; font-weight: 800; letter-spacing: -0.01em; }
.jj-grid { display: grid; gap: 20px; }
.jj-grid--2 { grid-template-columns: repeat(2, 1fr); }
.jj-grid--3 { grid-template-columns: repeat(3, 1fr); }
.jj-grid--4 { grid-template-columns: repeat(4, 1fr); }
.jj-grid--bento { grid-template-columns: repeat(12, 1fr); }
.jj-grid--bento > * { grid-column: span 4; }
.jj-grid--bento > .jj-span-3 { grid-column: span 3; }
.jj-grid--bento > .jj-span-4 { grid-column: span 4; }
.jj-grid--bento > .jj-span-6 { grid-column: span 6; }
.jj-grid--bento > .jj-span-8 { grid-column: span 8; }
.jj-grid--bento > .jj-span-12 { grid-column: span 12; }
@media (max-width: 960px) {
  .jj-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .jj-grid--bento > *, .jj-grid--bento > .jj-span-3, .jj-grid--bento > .jj-span-4 { grid-column: span 6; }
}
@media (max-width: 640px) {
  .jj-grid--2, .jj-grid--3, .jj-grid--4 { grid-template-columns: 1fr; }
  .jj-grid--bento > *, .jj-grid--bento > .jj-span-3, .jj-grid--bento > .jj-span-4, .jj-grid--bento > .jj-span-6, .jj-grid--bento > .jj-span-8 { grid-column: 1 / -1; }
}
.jj-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.jj-btn--lime { background: var(--accent-lime); color: #0A0E1A; }
.jj-btn--lime:hover { background: #D4FF66; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(198,255,61,0.25); color: #0A0E1A; }
.jj-btn--ghost { background: transparent; border-color: var(--border-subtle); color: var(--text-primary); }
.jj-btn--ghost:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); transform: translateY(-2px); }
.jj-btn--header { background: rgba(198,255,61,0.1); border-color: rgba(198,255,61,0.35); color: var(--accent-lime); border-radius: 999px; }
.jj-btn--header:hover { background: var(--accent-lime); color: #0A0E1A; box-shadow: 0 6px 18px rgba(198,255,61,0.3); }
.jj-btn__diag { font-size: 16px; line-height: 1; }
.jj-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(123,97,255,0.12);
  border: 1px solid rgba(123,97,255,0.3);
  color: #B4A6FF;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
}
.jj-tag--cyan { background: rgba(0,229,255,0.1); border-color: rgba(0,229,255,0.3); color: var(--accent-cyan); }
.jj-tag--lime { background: rgba(198,255,61,0.1); border-color: rgba(198,255,61,0.3); color: var(--accent-lime); }
.jj-panel {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 24px;
}
.jj-panel--raised { background: var(--bg-raised); }
.jj-panel--cut { border-radius: 0 16px 16px 16px; }
.jj-panel--cut::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 24px;
  height: 24px;
  border-top: 2px solid var(--accent-lime);
  border-right: 2px solid var(--accent-lime);
  border-radius: 0 14px 0 0;
  opacity: 0.8;
}
.jj-stripes {
  height: 6px;
  border-radius: 3px;
  background: repeating-linear-gradient(115deg, rgba(198,255,61,0.5) 0 8px, transparent 8px 16px);
}
.jj-media {
  position: relative;
  overflow: hidden;
  background: var(--bg-raised);
  border-radius: 12px;
  border: 1px solid var(--border-subtle);
}
.jj-media::before { content: ""; display: block; padding-bottom: 56.25%; }
.jj-media--square::before { padding-bottom: 100%; }
.jj-media--portrait::before { padding-bottom: 133%; }
.jj-media__inner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-align: center;
  padding: 12px;
}
.jj-breadcrumb { margin-bottom: 24px; font-size: 13px; font-family: var(--font-mono); color: var(--text-muted); }
.jj-breadcrumb__list { display: flex; flex-wrap: wrap; gap: 8px; }
.jj-breadcrumb__list li:not(:last-child)::after { content: "/"; margin-left: 8px; color: var(--accent-violet); }
.jj-breadcrumb__list a { color: var(--text-muted); }
.jj-breadcrumb__list a:hover { color: var(--accent-lime); }
.jj-breadcrumb__list [aria-current="page"] { color: var(--text-primary); }
.jj-reveal { transition: opacity 0.6s ease, transform 0.6s ease; will-change: opacity, transform; }
.jj-reveal.will-reveal { opacity: 0; transform: translateY(24px); }
.jj-reveal.is-visible { opacity: 1; transform: none; }
.jj-reveal[data-reveal-delay="100"] { transition-delay: 0.1s; }
.jj-reveal[data-reveal-delay="200"] { transition-delay: 0.2s; }
.jj-reveal[data-reveal-delay="300"] { transition-delay: 0.3s; }
@media (prefers-reduced-motion: reduce) { .jj-reveal.will-reveal { opacity: 1; transform: none; transition: none; } }
.jj-tabs { margin-top: 8px; }
.jj-tabs__list {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 24px;
}
.jj-tabs__tab {
  appearance: none;
  border: none;
  background: transparent;
  padding: 12px 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.jj-tabs__tab:hover { color: var(--text-primary); }
.jj-tabs__tab[aria-selected="true"] { color: var(--accent-lime); border-bottom-color: var(--accent-lime); }
.jj-tabs__panel:focus-visible { outline: 2px solid var(--accent-cyan); outline-offset: 4px; border-radius: 8px; }
.jj-tabs__panel[hidden] { display: none !important; }
.jj-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-lime), var(--accent-cyan));
  transform-origin: 0 50%;
  transform: scaleX(0);
  z-index: 1400;
  pointer-events: none;
  opacity: 0.9;
}
@media (prefers-reduced-motion: reduce) { .jj-progress { display: none; } }
.skip-link {
  position: fixed;
  top: -100px;
  left: 20px;
  z-index: 3000;
  background: var(--accent-lime);
  color: #0A0E1A;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  transition: top 0.2s ease;
}
.skip-link:focus-visible { top: 12px; }
.jj-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1200;
  padding: 14px 20px 0;
  pointer-events: none;
}
.jj-header__inner {
  max-width: 1280px;
  margin-inline: auto;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 8px 12px 8px 18px;
  background: var(--glass-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  box-shadow: var(--shadow-float);
  backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px) saturate(1.2);
  pointer-events: auto;
  position: relative;
}
.jj-header__inner::before {
  content: "";
  position: absolute;
  left: 20px;
  bottom: -1px;
  width: 70px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-lime), var(--accent-cyan));
  border-radius: 2px;
  opacity: 0.7;
}
.jj-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--text-primary);
}
.jj-brand:hover { color: var(--text-primary); }
.jj-brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--accent-lime);
  color: #0A0E1A;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: -0.02em;
  border-radius: 10px 4px 10px 4px;
  transform: rotate(-3deg);
  transition: transform 0.3s ease;
}
.jj-brand:hover .jj-brand__mark { transform: rotate(0deg); }
.jj-brand__name { font-size: 18px; font-weight: 800; font-family: var(--font-heading); line-height: 1.2; letter-spacing: 0.01em; }
.jj-brand__name em {
  font-style: normal;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  margin-left: 2px;
  vertical-align: super;
  letter-spacing: 0.04em;
}
.jj-brand--footer .jj-brand__mark { width: 32px; height: 32px; font-size: 13px; border-radius: 8px 3px 8px 3px; }
.jj-brand--footer .jj-brand__name { font-size: 17px; }
.jj-header__ticker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-lime);
  padding: 4px 10px;
  border-radius: 4px;
  flex-shrink: 0;
}
.jj-ticker-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-lime); animation: jj-pulse 2s infinite; }
@keyframes jj-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(198,255,61,0.6); }
  50% { opacity: 0.6; box-shadow: 0 0 8px 2px rgba(198,255,61,0.25); }
}
.jj-nav { margin-inline: auto; }
.jj-nav__list { display: flex; align-items: center; gap: 4px; }
.jj-nav__item { list-style: none; }
.jj-nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: background-color 0.2s ease, color 0.2s ease;
}
.jj-nav__link:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }
.jj-nav__link[aria-current="page"] { color: #0A0E1A; background: var(--accent-lime); font-weight: 700; }
.jj-nav__code { font-family: var(--font-mono); font-size: 10px; opacity: 0.8; letter-spacing: 0.08em; }
.jj-nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  flex-shrink: 0;
}
.jj-nav-toggle__bar { width: 18px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: transform 0.3s ease, opacity 0.3s ease; }
.jj-nav-toggle[aria-expanded="true"] .jj-nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.jj-nav-toggle[aria-expanded="true"] .jj-nav-toggle__bar:nth-child(2) { opacity: 0; }
.jj-nav-toggle[aria-expanded="true"] .jj-nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.jj-footer {
  margin-top: 80px;
  background: linear-gradient(180deg, #0A0E1A 0%, #070A13 100%);
  border-top: 1px solid var(--border-subtle);
  position: relative;
  overflow: hidden;
}
.jj-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-lime), var(--accent-cyan), transparent 70%);
  opacity: 0.7;
}
.jj-footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 40px; padding: 56px 0 40px; }
.jj-footer__brand .jj-brand { margin-bottom: 16px; }
.jj-footer__statement { font-size: 14px; color: var(--text-muted); max-width: 360px; line-height: 1.75; margin-top: 12px; }
.jj-footer__title {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
}
.jj-footer__nav ul,
.jj-footer__legal ul { display: grid; gap: 10px; }
.jj-footer__nav a,
.jj-footer__legal a { color: var(--text-secondary); font-size: 14px; transition: color 0.2s ease, padding-left 0.2s ease; }
.jj-footer__nav a:hover,
.jj-footer__legal a:hover { color: var(--accent-lime); padding-left: 4px; }
.jj-footer__contact p { font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; }
.jj-footer__bottom { border-top: 1px solid var(--border-subtle); padding: 20px 0; background: rgba(0,0,0,0.2); }
.jj-footer__bottom-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; font-size: 13px; color: var(--text-muted); }
.jj-footer__support { margin-left: auto; font-size: 12px; color: var(--text-muted); }
@media (max-width: 1100px) {
  .jj-header__ticker { display: none; }
}
@media (max-width: 960px) {
  .jj-footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .jj-footer__support { margin-left: 0; }
}
@media (max-width: 880px) {
  body { padding-top: 82px; }
  .jj-header { padding: 10px 12px 0; }
  .jj-header__inner { height: 60px; border-radius: 18px; padding-left: 14px; gap: 10px; }
  .jj-brand__name { font-size: 16px; }
  .jj-brand__mark { width: 32px; height: 32px; font-size: 13px; }
  .jj-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: rgba(10,14,26,0.96);
    border: 1px solid var(--border-subtle);
    border-radius: 18px;
    padding: 12px;
    margin: 0;
    display: none;
    backdrop-filter: blur(24px);
    box-shadow: 0 24px 50px rgba(0,0,0,0.5);
    max-height: calc(100vh - 120px);
    overflow-y: auto;
  }
  .jj-nav[data-open] { display: block; }
  .jj-nav__list { flex-direction: column; align-items: stretch; gap: 4px; }
  .jj-nav__link { width: 100%; justify-content: flex-start; border-radius: 12px; padding: 12px 14px; font-size: 15px; }
  .jj-nav__code { width: 28px; }
  .jj-nav-toggle { display: inline-flex; }
  .jj-btn--header { width: 42px; padding: 0; font-size: 16px; border-radius: 50%; }
  .jj-btn__label { display: none; }
}
@media (max-width: 640px) {
  .jj-footer__grid { grid-template-columns: 1fr; padding-top: 40px; }
  .jj-footer__bottom-inner { flex-direction: column; align-items: flex-start; gap: 6px; }
}