*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --c-deep: #0B1B3D;
  --c-deep-2: #11264F;
  --c-neon: #39FF14;
  --c-orange: #FF6B00;
  --c-red: #E60012;
  --c-bg: #F5F7FA;
  --c-white: #FFFFFF;
  --c-text: #1A1A1A;
  --c-cyan: #00D4FF;
  --c-mute: #7A8AA5;
  --c-line: rgba(255, 255, 255, 0.14);

  --font-headline: "Noto Sans SC", "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;

  --header-h: 76px;
  --content-max: 1200px;
  --radius-lg: 16px;
  --radius-sm: 6px;
  --radius-pill: 999px;
  --sh-header: 0 4px 24px rgba(3, 10, 32, 0.55);
  --sh-card: 0 8px 32px rgba(11, 27, 61, 0.08);
  --duration: 0.32s;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg);
  padding-top: var(--header-h);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--c-cyan);
}

button {
  font-family: inherit;
  cursor: pointer;
}

::selection {
  background: var(--c-neon);
  color: var(--c-deep);
}

:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 9999;
  background: var(--c-neon);
  color: var(--c-deep);
  padding: 10px 20px;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transform: translateY(-200%);
  transition: transform 0.25s var(--ease);
  box-shadow: 0 4px 16px rgba(57, 255, 20, 0.4);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  background: var(--c-deep);
  box-shadow: var(--sh-header);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(57, 255, 20, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 255, 20, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

.scroll-progress {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--c-neon), var(--c-cyan), var(--c-orange));
  z-index: 3;
}

.header-inner {
  position: relative;
  max-width: var(--content-max);
  margin-inline: auto;
  height: var(--header-h);
  padding-inline: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, var(--c-red), #B80E16);
  color: #fff;
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 24px;
  line-height: 1;
  border-radius: var(--radius-sm);
  box-shadow: 3px 3px 0 var(--c-neon);
  transform: rotate(-4deg);
  position: relative;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-name {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: 0.5px;
  color: var(--c-white);
  white-space: nowrap;
}

.brand-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-neon);
  letter-spacing: 2.5px;
  margin-top: 2px;
  text-transform: uppercase;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
}

.nav-item {
  list-style: none;
}

.nav-link {
  display: block;
  padding: 10px 14px;
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.3px;
  border-radius: var(--radius-sm);
  position: relative;
  transition: color var(--duration) var(--ease), background var(--duration) var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  inset-inline: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--c-neon);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration) var(--ease);
}

.nav-link:hover {
  color: var(--c-neon);
}

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-link[aria-current="page"] {
  color: var(--c-neon);
  font-weight: 700;
}

.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--c-neon);
  color: #062115;
  font-weight: 700;
  font-size: 14px;
  line-height: 1.2;
  text-decoration: none;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  transition: background var(--duration) var(--ease), color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.nav-cta::after {
  content: "→";
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  transition: transform var(--duration) var(--ease);
}

.nav-cta:hover {
  background: transparent;
  color: var(--c-neon);
  box-shadow: inset 0 0 0 2px var(--c-neon);
}

.nav-cta:hover::after {
  transform: translateX(4px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-sm);
  transition: border-color var(--duration) var(--ease), background var(--duration) var(--ease);
}

.nav-toggle:hover {
  border-color: var(--c-neon);
}

.toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--c-white);
  border-radius: 1px;
  transition: transform var(--duration) var(--ease), opacity var(--duration) var(--ease), background var(--duration) var(--ease);
}

.nav-toggle[aria-expanded="true"] .toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background: var(--c-neon);
}

.nav-toggle[aria-expanded="true"] .toggle-line:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background: var(--c-neon);
}

.container {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: 24px;
}

.page-hero {
  position: relative;
  background: var(--c-deep);
  background-image:
    linear-gradient(rgba(57, 255, 20, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 255, 20, 0.035) 1px, transparent 1px);
  background-size: 40px 40px;
  overflow: hidden;
  padding-block: 72px 56px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--c-orange);
  margin-bottom: 12px;
}

.section-label::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--c-neon);
  flex-shrink: 0;
}

.section-title {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(28px, 5vw, 56px);
  line-height: 1.15;
  color: var(--c-text);
}

.page-hero .section-title {
  color: var(--c-white);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  padding-block: 12px;
  font-size: 14px;
  color: var(--c-mute);
}

.breadcrumb li {
  list-style: none;
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--c-mute);
  opacity: 0.5;
}

.breadcrumb a {
  color: var(--c-cyan);
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}

.breadcrumb a:hover {
  color: var(--c-neon);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 30px;
  background: var(--c-neon);
  color: #062115;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  border: 2px solid var(--c-neon);
  border-radius: 10px;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--duration) var(--ease), color var(--duration) var(--ease), box-shadow var(--duration) var(--ease), transform var(--duration) var(--ease);
}

.btn:hover {
  background: transparent;
  color: var(--c-neon);
  box-shadow: 0 0 24px rgba(57, 255, 20, 0.3);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border-color: var(--c-orange);
  color: var(--c-orange);
}

.btn-outline:hover {
  background: var(--c-orange);
  color: #fff;
  box-shadow: 0 0 24px rgba(255, 107, 0, 0.3);
}

.data-num {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--c-cyan);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.stat-card {
  position: relative;
  background: linear-gradient(145deg, var(--c-deep-2), var(--c-deep));
  color: var(--c-white);
  border-radius: var(--radius-lg);
  padding: 28px;
  overflow: hidden;
  border: 1px solid rgba(57, 255, 20, 0.15);
}

.stat-card::after {
  content: "";
  position: absolute;
  width: 120px;
  height: 120px;
  top: -50px;
  right: -50px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(57, 255, 20, 0.22), transparent 70%);
  pointer-events: none;
}

.stat-card .data-num {
  font-size: 48px;
  line-height: 1.1;
  color: var(--c-neon);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
}

.bento-card {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid rgba(11, 27, 61, 0.06);
  box-shadow: var(--sh-card);
}

.bento-card--dark {
  background: linear-gradient(145deg, var(--c-deep-2), var(--c-deep));
  color: var(--c-white);
  border-color: rgba(57, 255, 20, 0.12);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  border-radius: var(--radius-pill);
  background: var(--c-orange);
  color: #fff;
  line-height: 1.5;
}

.tag--live {
  background: var(--c-neon);
  color: #062115;
}

.tag--hot {
  background: var(--c-red);
}

.motion-stripe {
  position: absolute;
  left: 0;
  right: 0;
  height: 8px;
  background: repeating-linear-gradient(
    -45deg,
    var(--c-neon) 0,
    var(--c-neon) 14px,
    transparent 14px,
    transparent 28px
  );
  opacity: 0.35;
  pointer-events: none;
}

.shape-block {
  position: absolute;
  width: 220px;
  height: 220px;
  background: var(--c-orange);
  opacity: 0.07;
  border-radius: 8px;
  pointer-events: none;
}

.ph {
  display: grid;
  place-items: center;
  min-height: 160px;
  background:
    linear-gradient(rgba(57, 255, 20, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 255, 20, 0.05) 1px, transparent 1px),
    linear-gradient(145deg, var(--c-deep-2), var(--c-deep));
  background-size: 24px 24px, 24px 24px, auto;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
}

.ph::before {
  content: attr(data-label);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--c-neon);
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0.85;
  text-align: center;
  padding: 16px;
}

.ph::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent 0,
    transparent 10px,
    rgba(255, 255, 255, 0.03) 10px,
    rgba(255, 255, 255, 0.03) 20px
  );
  pointer-events: none;
}

.ph--landscape {
  aspect-ratio: 16 / 9;
  min-height: 0;
}

.ph--square {
  aspect-ratio: 1 / 1;
  min-height: 0;
}

.ph--portrait {
  aspect-ratio: 3 / 4;
  min-height: 0;
}

.site-footer {
  position: relative;
  background: var(--c-deep);
  color: rgba(255, 255, 255, 0.82);
  flex-shrink: 0;
  margin-top: auto;
}

.site-footer::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--c-red) 0%, var(--c-orange) 35%, var(--c-neon) 100%);
}

.footer-top {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: 64px 24px 48px;
  display: grid;
  grid-template-columns: 2fr 1.2fr 1.2fr 1fr;
  gap: 40px;
}

.footer-brand {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.footer-mark {
  box-shadow: none;
  transform: rotate(0deg);
}

.footer-brand-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-name {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: 1px;
  color: var(--c-white);
}

.footer-tagline {
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
  line-height: 1.7;
}

.footer-nav,
.footer-contact,
.footer-legal {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.footer-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--c-orange);
  margin-bottom: 8px;
}

.footer-nav a,
.footer-legal a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--duration) var(--ease), padding-left var(--duration) var(--ease);
}

.footer-nav a:hover,
.footer-legal a:hover {
  color: var(--c-neon);
  padding-left: 4px;
}

.footer-contact p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  line-height: 1.6;
  word-break: break-word;
}

.footer-bottom {
  border-top: 1px solid var(--c-line);
  max-width: var(--content-max);
  margin-inline: auto;
  padding: 20px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 20px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

.footer-slogan {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 1px;
  color: rgba(255, 107, 0, 0.8);
}

.footer-icp {
  letter-spacing: 0.5px;
}

@media (max-width: 1024px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 960px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 28px;
    padding: 32px 24px 48px;
    background:
      linear-gradient(rgba(17, 38, 79, 0.94), rgba(11, 27, 61, 0.99)),
      linear-gradient(rgba(57, 255, 20, 0.06) 1px, transparent 1px),
      linear-gradient(90deg, rgba(57, 255, 20, 0.06) 1px, transparent 1px);
    background-size: auto, 32px 32px, 32px 32px;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition:
      opacity var(--duration) var(--ease),
      transform var(--duration) var(--ease),
      visibility 0s linear var(--duration);
  }

  .main-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition:
      opacity var(--duration) var(--ease),
      transform var(--duration) var(--ease),
      visibility 0s linear 0s;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav-link {
    padding: 18px 8px;
    font-size: 20px;
    font-weight: 600;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 0;
    color: rgba(255, 255, 255, 0.9);
  }

  .nav-link::after {
    display: none;
  }

  .nav-link:hover {
    color: var(--c-neon);
  }

  .nav-link[aria-current="page"] {
    color: var(--c-neon);
  }

  .nav-cta {
    justify-content: center;
    padding: 16px 24px;
    font-size: 16px;
  }
}

@media (max-width: 768px) {
  .container {
    padding-inline: 16px;
  }

  .page-hero {
    padding-block: 48px 40px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 48px 24px 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .header-inner {
    padding-inline: 16px;
  }

  .brand-tag {
    letter-spacing: 1.5px;
  }
}

@media (max-width: 420px) {
  .brand-mark {
    width: 40px;
    height: 40px;
    font-size: 20px;
  }

  .brand-name {
    font-size: 17px;
  }

  .brand-tag {
    font-size: 10px;
  }

  .nav-link {
    font-size: 18px;
    padding: 16px 8px;
  }
}

@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;
  }
}