:root {
  --color-deep: #0B1B3D;
  --color-electro: #7B2FBE;
  --color-gold: #F0B90B;
  --color-neutral: #131722;
  --color-light: #F5F7FA;
  --color-cyan: #00D4FF;
  --color-purple-bright: #A55EEA;
  --color-purple-deep: #3D1A5F;
  --color-pale: #E0F7FF;
  --font-heading: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --header-height: 72px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-pill: 999px;
  --content-max: 1280px;
  --transition-fast: .3s ease;
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, .25);
}

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

ul, ol {
  list-style: none;
}

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

button {
  font-family: inherit;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-light);
  background:
    radial-gradient(circle at 80% 10%, rgba(123, 47, 190, .35), transparent 45%),
    radial-gradient(circle at 15% 90%, rgba(0, 212, 255, .15), transparent 40%),
    linear-gradient(135deg, #0B1B3D, #131722);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

@media (max-width: 960px) {
  body {
    background-attachment: scroll;
  }
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 1px;
  margin: 0 0 .5em;
}

p {
  margin-bottom: 1em;
}

a {
  color: var(--color-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

#main-content:focus {
  outline: none;
}

.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 24px;
}

@media (min-width: 640px) {
  .container {
    padding: 0 32px;
  }
}

.skip-link {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 2000;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  background: var(--color-electro);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  opacity: 0;
  transform: translateY(-16px);
  pointer-events: none;
  transition: opacity .3s ease, transform .3s ease;
}

.skip-link:focus {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 27, 61, .92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 212, 255, .12);
}

.site-header__inner {
  position: relative;
  max-width: var(--content-max);
  height: var(--header-height);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-header__progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--color-electro), var(--color-cyan), var(--color-gold));
  z-index: 3;
  border-radius: 0 999px 999px 0;
  transition: width .12s linear;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--color-light);
  text-decoration: none;
}

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

.brand__logo {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}

.brand__logo-shape {
  position: absolute;
  width: 26px;
  height: 26px;
  clip-path: polygon(50% 0%, 90% 20%, 100% 60%, 75% 100%, 25% 100%, 0% 60%, 10% 20%);
  opacity: .9;
}

.brand__logo-shape--one {
  top: 0;
  left: 0;
  background: linear-gradient(135deg, var(--color-electro), var(--color-purple-bright));
  transform: rotate(12deg);
}

.brand__logo-shape--two {
  top: 8px;
  left: 10px;
  background: linear-gradient(135deg, var(--color-gold), #FFD75E);
  transform: rotate(-8deg);
  opacity: .95;
}

.brand__logo-shape--three {
  top: 16px;
  left: 2px;
  background: linear-gradient(135deg, var(--color-cyan), var(--color-electro));
  transform: rotate(20deg);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 2px;
}

.brand__tagline {
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(245, 247, 250, .55);
  font-weight: 600;
}

@media (max-width: 640px) {
  .brand__tagline {
    display: none;
  }
  .brand__name {
    font-size: 17px;
    letter-spacing: 1px;
  }
  .site-header__inner {
    padding: 0 16px;
  }
  .brand {
    gap: 8px;
  }
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav__link {
  display: inline-block;
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  color: rgba(245, 247, 250, .82);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .5px;
  background: transparent;
  border: 1px solid transparent;
  transition: background-color .3s ease, color .3s ease, border-color .3s ease, transform .3s ease;
}

.site-nav__link:hover {
  background: rgba(123, 47, 190, .2);
  color: var(--color-light);
  border-color: rgba(165, 94, 234, .4);
  transform: translateY(-1px);
}

.site-nav__link[aria-current="page"] {
  background: linear-gradient(135deg, var(--color-electro), var(--color-purple-bright));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 16px rgba(123, 47, 190, .4);
}

.site-nav__quick {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  background: rgba(240, 185, 11, .12);
  border: 1px solid rgba(240, 185, 11, .35);
  color: var(--color-gold);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: background-color .3s ease, color .3s ease, transform .3s ease;
}

.site-nav__quick:hover {
  background: var(--color-gold);
  color: var(--color-neutral);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 12px;
  background: rgba(245, 247, 250, .06);
  border: 1px solid rgba(245, 247, 250, .15);
  border-radius: 14px;
  cursor: pointer;
  transition: background-color .3s ease, border-color .3s ease;
}

.nav-toggle:hover {
  background: rgba(123, 47, 190, .2);
  border-color: rgba(165, 94, 234, .4);
}

.nav-toggle__bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-light);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease, background-color .3s ease;
}

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

.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(-7px) rotate(-45deg);
  background: var(--color-gold);
}

@media (max-width: 960px) {
  .nav-toggle {
    display: inline-flex;
  }
  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    z-index: 999;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 16px 24px 24px;
    background: rgba(11, 27, 61, .98);
    border-bottom: 1px solid rgba(0, 212, 255, .2);
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease, transform .3s ease;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }
  .site-nav[data-open="true"] {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }
  .site-nav__link {
    padding: 12px 16px;
    font-size: 16px;
    text-align: center;
  }
  .site-nav__quick {
    justify-content: center;
    margin-top: 8px;
  }
}

.site-footer {
  position: relative;
  background: linear-gradient(180deg, var(--color-purple-deep), #190A2E);
  color: rgba(245, 247, 250, .85);
  border-top: 1px solid rgba(0, 212, 255, .15);
  overflow: hidden;
  margin-top: auto;
}

.site-footer__accent {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--color-gold), var(--color-cyan), var(--color-electro), transparent);
  opacity: .7;
}

.site-footer__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 64px 32px 40px;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr 1fr;
  gap: 48px;
}

.site-footer__info,
.site-footer__nav,
.site-footer__contact,
.site-footer__legal {
  min-width: 0;
}

.site-footer__info .brand {
  margin-bottom: 16px;
}

.site-footer__trust {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(245, 247, 250, .72);
  margin: 0 0 16px;
}

.site-footer__badge {
  display: inline-block;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  background: rgba(240, 185, 11, .1);
  border: 1px solid rgba(240, 185, 11, .3);
  color: var(--color-gold);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
}

.site-footer__title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-cyan);
  margin-bottom: 16px;
}

.site-footer__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 15px;
}

.site-footer__list a {
  color: rgba(245, 247, 250, .78);
}

.site-footer__list a:hover {
  color: var(--color-gold);
}

.site-footer__icp {
  margin-top: 20px;
  font-size: 13px;
  color: rgba(245, 247, 250, .5);
  letter-spacing: 1px;
}

.site-footer__bottom {
  border-top: 1px solid rgba(245, 247, 250, .08);
}

.site-footer__bottom-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 20px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: rgba(245, 247, 250, .5);
}

@media (max-width: 1024px) {
  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding: 48px 24px 32px;
  }
}

@media (max-width: 600px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .site-footer__bottom-inner {
    padding: 16px 24px;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  color: #fff;
  background: linear-gradient(135deg, var(--color-electro), var(--color-purple-bright));
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(123, 47, 190, .25);
  transition: transform .3s ease, box-shadow .3s ease, background-color .3s ease, border-color .3s ease, color .3s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(123, 47, 190, .4);
  color: #fff;
}

.btn--ghost {
  background: transparent;
  box-shadow: none;
  border-color: rgba(245, 247, 250, .35);
  color: var(--color-light);
}

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

.btn--compact {
  padding: 8px 16px;
  font-size: 14px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 14px;
  color: rgba(245, 247, 250, .55);
}

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

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

.breadcrumb__separator {
  color: rgba(245, 247, 250, .3);
}

.media-frame {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 20% 20%, rgba(123, 47, 190, .35), transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(0, 212, 255, .2), transparent 45%),
    linear-gradient(135deg, var(--color-deep), var(--color-neutral));
  aspect-ratio: 16 / 9;
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, .04) 0%, transparent 30%),
    repeating-linear-gradient(-45deg, rgba(0, 212, 255, .04) 0 1px, transparent 1px 12px);
  pointer-events: none;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: inherit;
  pointer-events: none;
}

.media-frame--wide {
  aspect-ratio: 21 / 9;
}

.media-frame--tall {
  aspect-ratio: 3 / 4;
}

.media-frame img,
.media-frame__placeholder {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.accent-note {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 2px;
  transform: rotate(-90deg) translateX(-100%);
  transform-origin: left top;
  white-space: nowrap;
  color: rgba(245, 247, 250, .45);
  display: inline-block;
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 999;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(0, 212, 255, .3);
  background: rgba(11, 27, 61, .9);
  color: var(--color-cyan);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity .3s ease, transform .3s ease, background-color .3s ease, color .3s ease, border-color .3s ease;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .35);
}

.back-to-top:hover {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-neutral);
}

.back-to-top--visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .5s ease, transform .5s ease;
  transition-delay: var(--reveal-delay, 0s);
}

[data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .site-header__progress {
    transition: none;
  }
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}