:root {
  --c-bg: #0A0E27;
  --c-surface: #14204A;
  --c-rail: #1B2341;
  --c-green: #00FF88;
  --c-gold: #FFC857;
  --c-text: #E8ECFF;
  --c-muted: #A0A8C0;
  --c-line: #2A3560;
  --c-ok: #00CC88;
  --font-main: '欧朋黑体', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-num: 'DIN Alternate', 'Roboto Mono', monospace;
  --rail-w: 280px;
  --container-max: 1320px;
  --gap: 24px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-main);
  font-weight: 300;
  line-height: 1.7;
  letter-spacing: 0.01em;
  min-height: 100vh;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; font-size: inherit; background: none; border: none; cursor: pointer; }
h1, h2, h3, h4, h5, h6 {
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--c-text);
}
h1, h2, h3 { text-transform: uppercase; }
h1 { font-size: 42px; }
h2 { font-size: 32px; }
h3 { font-size: 24px; }
h4 { font-size: 18px; }
p { margin-bottom: 1em; }
:focus-visible { outline: 2px solid var(--c-green); outline-offset: 3px; }
::selection { background: var(--c-green); color: var(--c-bg); }

.text-num { font-family: var(--font-num); font-feature-settings: 'tnum'; }
.text-dim { color: var(--c-muted); }
.text-green { color: var(--c-green); }
.text-gold { color: var(--c-gold); }

.site-container { max-width: var(--container-max); margin: 0 auto; padding: 0 32px; }
@media (max-width: 767px) {
  .site-container { padding: 0 20px; }
}
.site-row { display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--gap); }
.site-row > [class*="site-col--"] { grid-column: span 12; }
@media (min-width: 768px) {
  .site-col--2 { grid-column: span 2; }
  .site-col--3 { grid-column: span 3; }
  .site-col--4 { grid-column: span 4; }
  .site-col--5 { grid-column: span 5; }
  .site-col--6 { grid-column: span 6; }
  .site-col--7 { grid-column: span 7; }
  .site-col--8 { grid-column: span 8; }
  .site-col--9 { grid-column: span 9; }
  .site-col--10 { grid-column: span 10; }
  .site-col--12 { grid-column: span 12; }
}

.site-section { padding-top: 56px; padding-bottom: 56px; border-bottom: 1px solid var(--c-line); }
.site-section__head { display: grid; grid-template-columns: 64px 1fr; gap: 20px; align-items: start; margin-bottom: 28px; }
.site-section__index { font-family: var(--font-num); font-size: 40px; font-weight: 700; color: var(--c-green); line-height: 1; }
.site-section__title { font-size: 24px; }
.site-section__lead { color: var(--c-muted); font-size: 15px; max-width: 220px; line-height: 1.6; margin-bottom: 24px; }
.site-section__body { margin-top: 24px; }
@media (min-width: 768px) {
  .site-section__index { font-size: 48px; }
  .site-section__title { font-size: 32px; }
}
@media (max-width: 767px) {
  .site-section__head { grid-template-columns: 44px 1fr; gap: 14px; }
  .site-section { padding-top: 40px; padding-bottom: 40px; }
}

.site-breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; padding: 20px 0; font-size: 13px; color: var(--c-muted); }
.site-breadcrumb a { color: var(--c-muted); transition: color 0.2s; }
.site-breadcrumb a:hover { color: var(--c-green); }
.site-breadcrumb__sep { font-family: var(--font-num); color: var(--c-line); }

.site-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  background: var(--c-green);
  color: var(--c-bg);
  font-weight: 900;
  font-size: 14px;
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--c-green);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.site-btn:hover {
  background: var(--c-text);
  border-color: var(--c-text);
  color: var(--c-bg);
  box-shadow: 0 0 24px rgba(0, 255, 136, 0.25);
}
.site-btn--ghost { background: transparent; color: var(--c-green); }
.site-btn--ghost:hover {
  background: rgba(0, 255, 136, 0.08);
  color: var(--c-green);
  border-color: var(--c-green);
  box-shadow: none;
}
.site-link { color: var(--c-muted); border-bottom: 1px solid var(--c-line); padding-bottom: 1px; transition: color 0.2s, border-color 0.2s; }
.site-link:hover { color: var(--c-green); border-bottom-color: var(--c-green); }

.data-card {
  position: relative;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  padding: 24px;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.data-card:hover {
  transform: translateY(-4px);
  border-color: var(--c-green);
  box-shadow: var(--shadow-card);
}
.data-card__value { font-family: var(--font-num); font-size: 40px; font-weight: 700; color: var(--c-green); line-height: 1; font-feature-settings: 'tnum'; }
.data-card__label { display: block; margin-top: 10px; font-size: 13px; letter-spacing: 0.08em; color: var(--c-muted); text-transform: uppercase; }
.data-card__meta { margin-top: 14px; font-size: 12px; color: var(--c-muted); font-family: var(--font-num); }

.data-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-ok);
  border: 1px solid var(--c-ok);
  text-transform: uppercase;
}
.data-pill::before { content: ''; width: 6px; height: 6px; background: currentColor; }
.data-pill--gold { color: var(--c-gold); border-color: var(--c-gold); }

.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th { padding: 12px 16px; text-align: left; border-bottom: 2px solid var(--c-line); font-size: 11px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--c-muted); }
.data-table td { padding: 14px 16px; border-bottom: 1px solid var(--c-line); color: var(--c-text); font-weight: 300; }
.data-table tr:hover td { background: rgba(0, 255, 136, 0.03); }

.figure-box {
  position: relative;
  overflow: hidden;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 120px;
}
.figure-box::before {
  content: attr(data-label);
  position: absolute;
  top: 14px;
  left: 14px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-muted);
  z-index: 1;
}
.figure-box--16x9 { aspect-ratio: 16 / 9; }
.figure-box--4x3 { aspect-ratio: 4 / 3; }
.figure-box--1x1 { aspect-ratio: 1 / 1; }

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  z-index: 400;
  background: linear-gradient(90deg, var(--c-green), var(--c-gold));
  pointer-events: none;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 500;
  padding: 12px 20px;
  background: var(--c-green);
  color: var(--c-bg);
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 0.06em;
  transition: top 0.2s ease;
}
.skip-link:focus-visible { top: 16px; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 300;
  width: min(85vw, 340px);
  height: 100vh;
  background: var(--c-rail);
  border-right: 1px solid var(--c-line);
  transform: translateX(-105%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.site-header[data-open] {
  transform: translateX(0);
  box-shadow: 8px 0 32px rgba(0, 0, 0, 0.5);
}
.site-header__inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  padding: 72px 20px 24px;
  overflow-y: auto;
}
@media (min-width: 900px) {
  .site-header {
    width: var(--rail-w);
    transform: translateX(0);
  }
  .site-header__inner { padding: 36px 20px 24px; }
}

.site-brand { display: inline-flex; align-items: center; gap: 14px; color: var(--c-text); transition: opacity 0.2s; }
.site-brand:hover { opacity: 0.85; }
.site-brand__mark {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-green);
  color: var(--c-bg);
  font-size: 22px;
  font-weight: 900;
  line-height: 1;
}
.site-brand__zh { display: block; font-size: 18px; font-weight: 900; letter-spacing: 0.08em; line-height: 1.2; }
.site-brand__en { display: block; margin-top: 3px; font-family: var(--font-num); font-size: 10px; font-weight: 700; letter-spacing: 0.18em; color: var(--c-muted); }
.site-header__brand { padding-bottom: 24px; border-bottom: 1px solid var(--c-line); }

.site-nav { margin-top: 24px; flex: 1; min-height: 0; }
.site-nav__list { display: flex; flex-direction: column; gap: 4px; }
.site-nav__link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 12px;
  color: var(--c-muted);
  border-left: 3px solid transparent;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--c-text);
  background: rgba(0, 255, 136, 0.06);
  border-left-color: var(--c-green);
}
.site-nav__link[aria-current="page"] {
  color: var(--c-text);
  background: rgba(0, 255, 136, 0.08);
  border-left-color: var(--c-green);
}
.site-nav__index {
  flex: 0 0 24px;
  width: 24px;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 700;
  color: var(--c-line);
  transition: color 0.2s;
}
.site-nav__link:hover .site-nav__index,
.site-nav__link[aria-current="page"] .site-nav__index { color: var(--c-green); }
.site-nav__label { font-size: 15px; letter-spacing: 0.1em; font-weight: 400; }

.site-header__foot { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--c-line); }
.site-header__status { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; font-family: var(--font-num); font-size: 10px; letter-spacing: 0.14em; color: var(--c-muted); }
.site-header__dot { width: 7px; height: 7px; background: var(--c-ok); }
.site-header__contact { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--c-muted); }
.site-header__mail,
.site-header__tel {
  display: block;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--c-muted);
  word-break: break-all;
}

.nav-toggle {
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 350;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 46px;
  height: 46px;
  background: var(--c-rail);
  border: 1px solid var(--c-line);
  transition: border-color 0.2s, background 0.2s;
}
.nav-toggle:hover { border-color: var(--c-green); background: var(--c-surface); }
.nav-toggle__bar { width: 20px; height: 2px; background: var(--c-text); transition: transform 0.25s ease, opacity 0.2s ease; }
.site-header[data-open] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.site-header[data-open] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
@media (max-width: 899px) {
  .nav-toggle { display: flex; }
}

.site-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(10, 14, 39, 0.65);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}
.site-header[data-open] ~ .site-overlay { opacity: 1; visibility: visible; }

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

#main-content {
  position: relative;
  min-height: 70vh;
  padding-top: 32px;
  padding-bottom: 64px;
  margin-left: 0;
}
@media (max-width: 899px) {
  #main-content { padding-top: 76px; }
}
@media (min-width: 900px) {
  #main-content {
    margin-left: var(--rail-w);
    padding-top: 48px;
  }
}

.site-footer {
  position: relative;
  background: linear-gradient(180deg, var(--c-surface), var(--c-rail));
  border-top: 1px solid var(--c-line);
}
.site-footer::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  width: 200px;
  height: 3px;
  background: var(--c-green);
}
.site-footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 60px 32px 44px;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
}
.site-footer__col--brand { display: flex; flex-direction: column; gap: 20px; }
.site-brand--footer { align-self: flex-start; }
.site-footer__trust { font-size: 14px; color: var(--c-muted); line-height: 1.8; max-width: 260px; }
.site-footer__heading {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-text);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-line);
}
.site-footer__list { display: flex; flex-direction: column; gap: 10px; }
.site-footer__list a { color: var(--c-muted); font-size: 14px; transition: color 0.2s, padding-left 0.2s; }
.site-footer__list a:hover { color: var(--c-green); padding-left: 4px; }
.site-footer__list--contact li { font-size: 13px; color: var(--c-muted); }
.site-footer__bottom { border-top: 1px solid var(--c-line); background: rgba(10, 14, 39, 0.5); }
.site-footer__bottom-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--c-muted);
}
@media (min-width: 900px) {
  .site-footer { margin-left: var(--rail-w); }
}
@media (max-width: 1023px) {
  .site-footer__inner { grid-template-columns: 1fr 1fr; gap: 40px; padding: 48px 24px 36px; }
}
@media (max-width: 767px) {
  .site-footer__inner { grid-template-columns: 1fr; gap: 32px; padding: 40px 20px 32px; }
  .site-footer__bottom-inner { padding: 16px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
  html { scroll-behavior: auto; }
}