:root {
  --color-deep: #0B1B3D;
  --color-deeper: #071224;
  --color-green: #39FF14;
  --color-orange: #FF6B00;
  --color-blue: #1E6FFF;
  --color-sky: #4A90D9;
  --color-white: #FFFFFF;
  --color-mist: #B0B8C4;
  --color-glass: rgba(255, 255, 255, 0.08);
  --gradient-sport: linear-gradient(135deg, #0B1B3D 0%, #39FF14 100%);
  --font-body: Inter, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-display: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --radius: 24px;
  --radius-pill: 999px;
  --shadow-card: 0 18px 48px -28px rgba(0, 0, 0, 0.45);
}

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

html {
  background: var(--color-deep);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: clamp(5.5rem, 10vw, 7rem);
  color: var(--color-white);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 10% 0%, rgba(30, 111, 255, 0.12), transparent 32rem),
    radial-gradient(circle at 90% 30%, rgba(57, 255, 20, 0.06), transparent 24rem),
    var(--color-deep);
}

main {
  display: block;
  flex: 1 0 auto;
}

#main-content {
  scroll-margin-top: 7rem;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 1rem;
  color: var(--color-white);
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.15;
}

h1 {
  font-size: clamp(2.5rem, 7vw, 5.2rem);
  letter-spacing: -0.02em;
}

h2,
.section-title {
  font-size: clamp(2rem, 5vw, 3.4rem);
}

h3 {
  font-size: 1.375rem;
}

p {
  margin: 0 0 1rem;
}

a {
  color: var(--color-sky);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--color-green);
}

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

button {
  font: inherit;
}

address {
  font-style: normal;
}

::selection {
  background: var(--color-green);
  color: var(--color-deeper);
}

:focus-visible {
  outline: 3px solid var(--color-green);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: min(100% - 1.5rem, 1200px);
  margin-inline: auto;
}

.grid,
.grid-cols-2,
.grid-cols-3,
.grid--feature {
  display: grid;
  gap: 1.25rem;
}

.grid-cols-2,
.grid-cols-3,
.grid--feature {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .grid--feature {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

.stack {
  display: grid;
  gap: 1.5rem;
}

.page-hero {
  position: relative;
  min-height: 74vh;
  display: flex;
  align-items: flex-end;
  padding: clamp(2rem, 6vw, 4rem) 0;
  background:
    linear-gradient(135deg, rgba(30, 111, 255, 0.14), transparent 55%),
    radial-gradient(circle at 75% 25%, rgba(57, 255, 20, 0.08), transparent 30rem);
}

.page-hero > * {
  position: relative;
  z-index: 2;
}

.page-hero::after {
  content: "";
  position: absolute;
  right: -5%;
  bottom: 0;
  width: 45%;
  height: 100%;
  transform: skewX(-12deg);
  background: repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 16px);
  pointer-events: none;
}

.section {
  padding: clamp(4rem, 8vw, 7rem) 0;
  scroll-margin-top: 6rem;
}

.section--deep {
  background: var(--color-deeper);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 2.5rem;
}

.floor-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: var(--color-green);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.floor-label::before {
  content: "";
  width: 2.5rem;
  height: 2px;
  background: linear-gradient(90deg, var(--color-green), transparent);
}

.section-title {
  margin: 0 0 1rem;
}

.section-intro {
  max-width: 58ch;
  color: var(--color-mist);
  font-size: 1.0625rem;
  line-height: 1.8;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.2rem;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-white);
  font-family: inherit;
  font-weight: 700;
  font-size: 0.875rem;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--color-green);
  color: var(--color-deeper);
}

.btn-primary:hover {
  background: var(--color-orange);
  color: var(--color-white);
  box-shadow: 0 14px 34px -18px rgba(255, 107, 0, 0.8);
  transform: translateY(-1px);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.18);
}

.btn-ghost:hover {
  border-color: var(--color-green);
  color: var(--color-green);
  background: rgba(57, 255, 20, 0.08);
}

.btn-sm {
  padding: 0.5rem 0.9rem;
  font-size: 0.8125rem;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  z-index: 3000;
  background: linear-gradient(90deg, var(--color-green), var(--color-orange));
  box-shadow: 0 0 12px rgba(57, 255, 20, 0.5);
  pointer-events: none;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 2999;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-pill);
  background: var(--color-green);
  color: var(--color-deeper);
  font-weight: 800;
  font-size: 0.875rem;
  text-decoration: none;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  transform: translateY(-4rem);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: none;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0.75rem 0.75rem 0;
  pointer-events: none;
  transition: transform 0.35s ease;
  visibility: visible;
}

.site-header[data-hidden] {
  transform: translateY(-110%);
  visibility: hidden;
  transition: transform 0.35s ease, visibility 0s 0.35s;
}

.site-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0.5rem 0.65rem 0.5rem 1rem;
  background: rgba(7, 18, 36, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-pill);
  box-shadow: 0 20px 45px -32px rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  pointer-events: auto;
}

.site-header[data-scrolled] .site-header__inner {
  background: rgba(7, 18, 36, 0.92);
  box-shadow: 0 14px 34px -22px rgba(0, 0, 0, 0.8);
}

.brand {
  display: flex;
  flex-direction: column;
  flex: 0 0 auto;
  line-height: 1.15;
  text-decoration: none;
}

.brand__name {
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 0.03em;
}

.brand__sub {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-mist);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.brand__sub::before {
  content: "";
  width: 0.35rem;
  height: 0.35rem;
  border-radius: 99px;
  background: var(--color-green);
  box-shadow: 0 0 8px var(--color-green);
}

.brand:hover .brand__name {
  color: var(--color-green);
}

.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
}

.site-nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__item {
  margin: 0;
  padding: 0;
}

.site-nav__link {
  display: inline-block;
  padding: 0.55rem 0.95rem;
  border-radius: var(--radius-pill);
  color: var(--color-mist);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s, background-color 0.2s, box-shadow 0.2s;
}

.site-nav__link:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.08);
}

.site-nav__link[aria-current="page"] {
  color: var(--color-deeper);
  background: var(--color-green);
  box-shadow: 0 0 0 3px rgba(57, 255, 20, 0.16);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 0 0 auto;
}

.nav-cta {
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-white);
}

.nav-toggle__bar {
  display: block;
  width: 1rem;
  height: 2px;
  background: currentColor;
  border-radius: 99px;
  transition: transform 0.2s, opacity 0.2s;
}

@media (min-width: 960px) and (max-width: 1150px) {
  .site-header__inner {
    gap: 0.35rem;
    padding-left: 0.75rem;
    padding-right: 0.5rem;
  }

  .brand__name {
    font-size: 1.15rem;
  }

  .site-nav__link {
    padding: 0.45rem 0.55rem;
    font-size: 0.8125rem;
  }

  .nav-cta {
    padding: 0.5rem 0.7rem;
    font-size: 0.75rem;
  }
}

@media (max-width: 959.98px) {
  .site-header {
    padding: 0.5rem 0.5rem 0;
  }

  .site-header__inner {
    padding: 0.55rem 0.65rem;
    border-radius: 1.5rem;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    right: 0;
    display: block;
    padding: 1rem;
    background: rgba(7, 18, 36, 0.97);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 1.25rem;
    box-shadow: 0 30px 70px -20px rgba(0, 0, 0, 0.7);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    z-index: 5;
  }

  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.15rem;
  }

  .site-nav__link {
    display: block;
    padding: 0.85rem 1rem;
    font-size: 1rem;
  }

  .site-nav__link[aria-current="page"] {
    background: rgba(57, 255, 20, 0.12);
    color: var(--color-green);
    box-shadow: none;
  }

  .site-header__actions {
    margin-left: auto;
  }

  .brand__name {
    font-size: 1.25rem;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

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

  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
}

.site-footer {
  position: relative;
  flex: 0 0 auto;
  margin-top: auto;
  padding: 5rem 0 0;
  background:
    radial-gradient(circle at 80% 0%, rgba(30, 111, 255, 0.12), transparent 26rem),
    var(--color-deeper);
  color: var(--color-mist);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, rgba(57, 255, 20, 0.7), rgba(255, 107, 0, 0.6), transparent);
}

.site-footer__inner {
  width: min(100% - 1.5rem, 1200px);
  margin-inline: auto;
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
}

.footer-brand {
  position: relative;
  padding-left: 1.1rem;
}

.footer-brand::before {
  content: "";
  position: absolute;
  top: 0.2rem;
  bottom: 0.2rem;
  left: 0;
  width: 4px;
  border-radius: 99px;
  background: linear-gradient(180deg, var(--color-green), var(--color-orange));
}

.footer-brand__name {
  margin: 0;
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 900;
}

.footer-brand__note {
  margin: 0.35rem 0 0;
  color: var(--color-mist);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.footer-brand__slogan {
  margin: 1.25rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--color-green);
  font-size: 1rem;
  font-weight: 700;
}

.footer-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.footer-column {
  min-width: 0;
}

.footer-heading {
  margin: 0 0 0.75rem;
  color: var(--color-orange);
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.footer-list {
  display: grid;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-list a {
  color: var(--color-mist);
  text-decoration: none;
  transition: color 0.2s, padding-left 0.2s;
}

.footer-list a:hover {
  color: var(--color-green);
  padding-left: 0.25rem;
}

.footer-list--plain {
  font-style: normal;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding: 1.5rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--color-mist);
  font-size: 0.8125rem;
}

.footer-copy,
.footer-icp {
  margin: 0;
}

.footer-icp {
  letter-spacing: 0.06em;
}

@media (min-width: 640px) {
  .footer-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-contact {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1024px) {
  .site-footer__top {
    grid-template-columns: minmax(16rem, 1fr) 2.2fr;
  }

  .footer-columns {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2.5rem;
  }

  .footer-contact {
    grid-column: auto;
  }
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1.75rem;
  padding: 0;
  list-style: none;
  font-size: 0.875rem;
  color: var(--color-mist);
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: rgba(255, 255, 255, 0.3);
}

.breadcrumb a {
  color: var(--color-sky);
  text-decoration: none;
}

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

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  background: rgba(57, 255, 20, 0.12);
  color: var(--color-green);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.tag--orange {
  background: rgba(255, 107, 0, 0.14);
  color: var(--color-orange);
}

.data-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  padding: 0.55rem 0.85rem;
  border-radius: 0.85rem;
  background: var(--color-glass);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--color-white);
  font-size: 0.8125rem;
}

.data-chip strong {
  color: var(--color-green);
  font-size: 1.25rem;
}

.data-panel {
  position: relative;
  padding: 1.5rem;
  border-radius: var(--radius);
  background: var(--color-glass);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-card);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.data-panel:hover {
  border-color: rgba(57, 255, 20, 0.45);
  box-shadow: 0 22px 50px -28px rgba(57, 255, 20, 0.35);
  transform: translateY(-3px);
}

.data-flow {
  min-height: 10rem;
  border-radius: var(--radius);
  background:
    repeating-linear-gradient(115deg, rgba(57, 255, 20, 0.12) 0 2px, transparent 2px 16px),
    repeating-linear-gradient(25deg, rgba(30, 111, 255, 0.1) 0 1px, transparent 1px 20px);
}

.image-frame {
  position: relative;
  overflow: hidden;
  min-height: 12rem;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(30, 111, 255, 0.22), rgba(57, 255, 20, 0.06)),
    var(--color-deep);
}

.image-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(115deg, transparent 35%, rgba(255, 255, 255, 0.08) 50%, transparent 65%);
  opacity: 0;
  transition: opacity 0.3s;
}

.image-frame:hover::before {
  opacity: 1;
}

.image-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 18px);
}

.image-frame img,
.image-frame__media {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.split-rule {
  height: 2px;
  margin: 2.5rem 0;
  border: 0;
  background: linear-gradient(90deg, var(--color-green), var(--color-orange), transparent);
  opacity: 0.8;
}

.strip {
  position: relative;
  height: 0.75rem;
  border: 0;
  background: var(--gradient-sport);
  opacity: 0.9;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .skip-link {
    transform: translateY(-4rem);
  }

  .skip-link:focus {
    transform: none;
  }
}