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

[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 130px;
  scrollbar-color: var(--color-line) var(--color-bg);
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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;
  font-stretch: condensed;
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--color-text);
  text-wrap: balance;
}

h1 {
  font-size: clamp(34px, 5vw, 64px);
}

h2 {
  font-size: clamp(26px, 3.6vw, 44px);
}

h3 {
  font-size: clamp(20px, 2.4vw, 28px);
}

h4 {
  font-size: 18px;
}

::selection {
  background: var(--color-orange);
  color: var(--color-bg);
}

:root {
  --color-bg: #0B0C10;
  --color-bg-deep: #08090D;
  --color-panel: #1A1D24;
  --color-orange: #FF4B2B;
  --color-orange-soft: #FF8A5C;
  --color-ice: #00D2FF;
  --color-ice-deep: #0077B6;
  --color-text: #E8EAED;
  --color-text-dim: #9BA3AF;
  --color-white: #FFFFFF;
  --color-line: #2D333D;
  --font-display: 'Oswald', 'Bahnschrift', 'Arial Narrow', 'Noto Sans SC', sans-serif;
  --font-body: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', sans-serif;
  --font-data: 'Roboto Mono', 'JetBrains Mono', Consolas, 'Courier New', monospace;
  --header-h: 64px;
  --nav-h: 48px;
  --container: 1280px;
  --gutter: clamp(20px, 4vw, 48px);
  --clip: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  --shadow-panel: 0 20px 60px rgba(0, 0, 0, 0.45);
}

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

.site-container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.site-section {
  padding: clamp(56px, 9vw, 104px) 0;
}

.site-section--tight {
  padding: clamp(32px, 5vw, 56px) 0;
}

.site-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(16px, 2.4vw, 32px);
}

.site-grid__span-4 {
  grid-column: span 4;
}

.site-grid__span-6 {
  grid-column: span 6;
}

.site-grid__span-8 {
  grid-column: span 8;
}

.site-grid__span-12 {
  grid-column: span 12;
}

.site-prose p {
  margin: 1em 0;
  color: var(--color-text);
}

.site-prose h2,
.site-prose h3,
.site-prose h4 {
  margin-top: 2em;
}

.site-prose a {
  color: var(--color-ice);
  border-bottom: 1px solid rgba(0, 210, 255, 0.3);
  transition: border-color 0.2s, color 0.2s;
}

.site-prose a:hover {
  color: var(--color-white);
  border-bottom-color: var(--color-orange);
}

.site-prose ul {
  list-style: square;
  padding-left: 1.4em;
}

.site-prose li {
  margin: 0.5em 0;
  color: var(--color-text);
}

.site-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-ice);
}

.site-kicker::before {
  content: '';
  flex-shrink: 0;
  width: 26px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-orange), var(--color-orange-soft));
}

.site-kicker--orange {
  color: var(--color-orange);
}

.site-kicker--orange::before {
  background: linear-gradient(90deg, var(--color-ice), var(--color-ice-deep));
}

.site-display {
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  font-size: clamp(42px, 7vw, 84px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--color-white);
  text-transform: uppercase;
}

.site-display em {
  font-style: normal;
  background: linear-gradient(100deg, var(--color-orange), var(--color-ice));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.site-slash {
  width: 240px;
  max-width: 100%;
  height: 8px;
  background: repeating-linear-gradient(-45deg, var(--color-orange) 0 4px, transparent 4px 12px);
}

.site-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 30px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  border: 1px solid var(--color-line);
  background: var(--color-panel);
  color: var(--color-text);
  position: relative;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}

.site-btn:hover {
  border-color: var(--color-ice);
  color: var(--color-ice);
}

.site-btn--primary {
  background: linear-gradient(120deg, var(--color-orange), var(--color-orange-soft));
  border-color: transparent;
  color: var(--color-bg);
  font-weight: 900;
}

.site-btn--primary:hover {
  background: linear-gradient(120deg, var(--color-orange-soft), var(--color-orange));
  color: var(--color-bg);
  transform: translateY(-2px);
}

.site-btn--ghost {
  background: transparent;
  border-color: var(--color-line);
  color: var(--color-text);
}

.site-btn--ghost:hover {
  border-color: var(--color-orange);
  color: var(--color-orange);
}

.site-btn--clip {
  clip-path: var(--clip);
}

.site-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 12px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-ice);
  background: rgba(0, 210, 255, 0.08);
  border: 1px solid rgba(0, 210, 255, 0.28);
}

.site-tag--hot {
  color: var(--color-orange);
  background: rgba(255, 75, 43, 0.08);
  border-color: rgba(255, 75, 43, 0.28);
}

.site-card {
  position: relative;
  background: var(--color-panel);
  border: 1px solid var(--color-line);
  padding: clamp(20px, 3vw, 32px);
}

.site-card--clip {
  clip-path: var(--clip);
}

.site-card--hover {
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.site-card--hover:hover {
  border-color: rgba(0, 210, 255, 0.45);
  box-shadow: var(--shadow-panel);
  transform: translateY(-3px);
}

.site-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 18px 0;
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--color-text-dim);
}

.site-breadcrumb a {
  color: var(--color-ice);
  transition: color 0.2s;
}

.site-breadcrumb a:hover {
  color: var(--color-white);
}

.site-breadcrumb__sep {
  color: var(--color-line);
}

.site-breadcrumb [aria-current="page"] {
  color: var(--color-text);
}

.site-image {
  position: relative;
  overflow: hidden;
  background-color: var(--color-panel);
  border: 1px solid var(--color-line);
  aspect-ratio: 16 / 9;
}

.site-image--portrait {
  aspect-ratio: 3 / 4;
}

.site-image--wide {
  aspect-ratio: 21 / 9;
}

.site-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 210, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 210, 255, 0.07) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.site-image > * {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.site-link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-ice);
  transition: color 0.2s;
}

.site-link-arrow::after {
  content: '';
  width: 8px;
  height: 8px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.2s;
}

.site-link-arrow:hover {
  color: var(--color-white);
}

.site-link-arrow:hover::after {
  transform: rotate(45deg) translate(2px, -2px);
}

.site-skip {
  position: fixed;
  top: -120px;
  left: 16px;
  z-index: 300;
  padding: 10px 22px;
  background: var(--color-orange);
  color: var(--color-bg);
  font-family: var(--font-body);
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 0.1em;
  clip-path: var(--clip);
  transition: top 0.2s;
}

.site-skip:focus {
  top: 12px;
}

.site-scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 240;
  background: linear-gradient(90deg, var(--color-orange) 0%, var(--color-ice-deep) 55%, var(--color-ice) 100%);
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
}

.site-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 150;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  background: var(--color-panel);
  border: 1px solid var(--color-line);
  border-bottom-color: var(--color-orange);
  font-family: var(--font-data);
  font-size: 18px;
  color: var(--color-orange);
  clip-path: var(--clip);
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.site-to-top:hover {
  background: var(--color-orange);
  border-color: var(--color-orange);
  color: var(--color-bg);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: rgba(11, 12, 16, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.site-header__accent {
  height: 3px;
  background: linear-gradient(90deg, var(--color-orange) 0%, var(--color-orange-soft) 35%, var(--color-ice-deep) 75%, var(--color-ice) 100%);
}

.site-header__inner {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  height: var(--header-h);
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  gap: 16px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.site-brand__mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--color-orange), var(--color-orange-soft));
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  letter-spacing: 0.04em;
  color: var(--color-bg);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
}

.site-brand__text {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  font-size: 23px;
  line-height: 1;
  letter-spacing: 0.03em;
  color: var(--color-white);
}

.site-brand__text em {
  font-style: normal;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--color-orange);
  text-transform: uppercase;
}

.site-search-link {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 38px;
  padding: 0 16px;
  border: 1px solid var(--color-line);
  border-left-color: var(--color-ice-deep);
  background: var(--color-panel);
  transition: border-color 0.2s, background 0.2s;
}

.site-search-link:hover {
  border-color: var(--color-ice);
  background: #22262F;
}

.site-search-link__icon {
  position: relative;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  border: 2px solid var(--color-text-dim);
  border-radius: 50%;
  transition: border-color 0.2s;
}

.site-search-link__icon::after {
  content: '';
  position: absolute;
  right: -5px;
  bottom: -3px;
  width: 6px;
  height: 2px;
  background: var(--color-text-dim);
  border-radius: 1px;
  transform: rotate(45deg);
  transition: background 0.2s;
}

.site-search-link:hover .site-search-link__icon {
  border-color: var(--color-ice);
}

.site-search-link:hover .site-search-link__icon::after {
  background: var(--color-ice);
}

.site-search-link__text {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-dim);
  letter-spacing: 0.04em;
  transition: color 0.2s;
}

.site-search-link:hover .site-search-link__text {
  color: var(--color-white);
}

.site-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 1px solid var(--color-line);
  background: var(--color-panel);
  flex-shrink: 0;
}

.site-nav-toggle__line {
  display: block;
  height: 2px;
  background: var(--color-text);
  transition: transform 0.22s, opacity 0.22s;
}

.site-nav-toggle[data-open] .site-nav-toggle__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-nav-toggle[data-open] .site-nav-toggle__line:nth-child(2) {
  opacity: 0;
}

.site-nav-toggle[data-open] .site-nav-toggle__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  background: var(--color-panel);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.site-nav__list {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
}

.site-nav__item {
  position: relative;
  flex: 1 1 0;
  display: flex;
}

.site-nav__item + .site-nav__item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 1px;
  height: 22px;
  background: linear-gradient(180deg, transparent, var(--color-line) 25%, var(--color-line) 75%, transparent);
  transform: translateY(-50%) rotate(14deg);
  z-index: 1;
}

.site-nav__link {
  flex: 1 1 0;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  height: var(--nav-h);
  padding: 0 18px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-text-dim);
  transition: color 0.2s;
  white-space: nowrap;
}

.site-nav__link::after {
  content: '';
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-orange), var(--color-ice));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.24s ease;
}

.site-nav__link:hover {
  color: var(--color-white);
}

.site-nav__link:hover::after {
  transform: scaleX(1);
}

.site-nav__link[aria-current="page"] {
  color: var(--color-white);
}

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

.site-footer {
  position: relative;
  background: var(--color-bg-deep);
  margin-top: auto;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-orange) 0%, var(--color-ice-deep) 55%, var(--color-ice) 100%);
}

.site-footer__inner {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: clamp(40px, 7vw, 72px) var(--gutter) 24px;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 0.8fr 1.2fr;
  gap: clamp(24px, 4vw, 48px);
  padding-bottom: clamp(28px, 4vw, 44px);
  border-bottom: 1px solid var(--color-line);
}

.site-footer__col--brand,
.site-footer__col--nav,
.site-footer__col--legal,
.site-footer__col--contact {
  min-width: 0;
}

.site-brand--footer .site-brand__mark {
  width: 38px;
  height: 38px;
  font-size: 15px;
  background: linear-gradient(135deg, var(--color-ice-deep), var(--color-ice));
}

.site-brand--footer .site-brand__text {
  font-size: 19px;
}

.site-brand--footer .site-brand__text em {
  color: var(--color-ice);
  font-size: 11px;
}

.site-footer__about {
  margin-top: 16px;
  font-size: 14px;
  color: var(--color-text-dim);
  max-width: 34em;
}

.site-footer__trust {
  margin-top: 12px;
  padding: 12px 14px;
  border-left: 2px solid var(--color-orange);
  background: rgba(255, 75, 43, 0.05);
  font-size: 13px;
  color: var(--color-text-dim);
  line-height: 1.7;
}

.site-footer__title {
  margin-bottom: 14px;
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-dim);
}

.site-footer__list li + li {
  margin-top: 8px;
}

.site-footer__link {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  color: var(--color-text-dim);
  transition: color 0.2s, transform 0.2s;
}

.site-footer__link::before {
  content: '/';
  margin-right: 8px;
  color: var(--color-line);
  font-family: var(--font-data);
  transition: color 0.2s;
}

.site-footer__link:hover {
  color: var(--color-orange);
  transform: translateX(2px);
}

.site-footer__link:hover::before {
  color: var(--color-ice);
}

.site-footer__contact li + li {
  margin-top: 8px;
}

.site-footer__contact-item {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text-dim);
  line-height: 1.6;
}

.site-footer__contact-label {
  flex-shrink: 0;
  min-width: 32px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--color-line);
  padding-top: 2px;
}

.site-footer__service {
  margin-top: 14px;
  padding: 10px 12px;
  border-left: 2px solid var(--color-ice-deep);
  background: rgba(0, 119, 182, 0.06);
  font-size: 13px;
  color: var(--color-text-dim);
}

.site-footer__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-top: 20px;
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--color-text-dim);
}

.site-footer__copyright,
.site-footer__icp {
  font-size: 13px;
  color: var(--color-text-dim);
}

:focus-visible {
  outline: 2px solid var(--color-ice);
  outline-offset: 3px;
}

@media (min-width: 1024px) {
  .site-footer__col--contact {
    border-left: 1px solid var(--color-line);
    padding-left: 24px;
  }
}

@media (max-width: 1120px) {
  .site-nav__link {
    padding: 0 14px;
    font-size: 14px;
    letter-spacing: 0.08em;
  }

  .site-nav__link::after {
    left: 14px;
    right: 14px;
  }

  .site-search-link {
    width: 42px;
    padding: 0;
    justify-content: center;
  }

  .site-search-link__text {
    display: none;
  }
}

@media (max-width: 1023px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  html {
    scroll-padding-top: 108px;
  }

  .site-header__inner {
    height: 60px;
    gap: 10px;
  }

  .site-brand__mark {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }

  .site-brand__text {
    font-size: 19px;
  }

  .site-brand--footer .site-brand__text {
    font-size: 18px;
  }

  .site-search-link {
    margin-left: auto;
    width: 42px;
    padding: 0;
    justify-content: center;
  }

  .site-search-link__text {
    display: none;
  }

  .site-nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;
    display: none;
    border-top: 0;
    box-shadow: 0 28px 56px rgba(0, 0, 0, 0.5);
    z-index: 140;
  }

  .site-nav[data-open] {
    display: block;
  }

  .site-nav__list {
    max-width: none;
    padding: 0;
    flex-direction: column;
  }

  .site-nav__item {
    flex: none;
  }

  .site-nav__item + .site-nav__item::before {
    display: none;
  }

  .site-nav__link {
    height: auto;
    justify-content: flex-start;
    padding: 16px var(--gutter);
    font-size: 15px;
    border-bottom: 1px solid var(--color-line);
  }

  .site-nav__link::before {
    content: '';
    width: 7px;
    height: 7px;
    margin-left: auto;
    border-right: 2px solid var(--color-ice);
    border-bottom: 2px solid var(--color-ice);
    transform: rotate(-45deg);
    transition: border-color 0.2s;
  }

  .site-nav__link[aria-current="page"]::before {
    border-color: var(--color-orange);
  }

  .site-nav__link::after {
    left: 0;
    right: auto;
    bottom: auto;
    top: 0;
    width: 3px;
    height: 100%;
    transform: scaleY(0);
    transform-origin: top center;
  }

  .site-nav__link:hover::after,
  .site-nav__link[aria-current="page"]::after {
    transform: scaleY(1);
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .site-footer__meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-grid {
    grid-template-columns: 1fr;
  }

  .site-grid__span-4,
  .site-grid__span-6,
  .site-grid__span-8,
  .site-grid__span-12 {
    grid-column: span 1;
  }
}

@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;
  }
}