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

:root {
  --clr-bg: #2E1A47;
  --clr-bg-deep: #0B0A13;
  --clr-primary: #FF2A6D;
  --clr-secondary: #05D9E8;
  --clr-purple: #6A4C93;
  --clr-rose: #B9375E;
  --clr-text: #F8F0E5;
  --clr-glass: rgba(255,255,255,0.08);
  --clr-warning: #FF9F1C;
  --clr-success: #2DE14B;
  --font-display: 'Orbitron', 'Exo 2', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --fs-h1: 2.8rem;
  --fs-h2: 2.2rem;
  --fs-h3: 1.5rem;
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --ls-display: 0.05em;
  --ls-body: 0.02em;
  --header-h: 72px;
  --spy-delay: 0s;
  --radius-md: 12px;
  --radius-sm: 6px;
  --shadow-neon: 0 0 24px rgba(255,42,109,0.3);
}

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

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--clr-text);
  letter-spacing: var(--ls-body);
  background:
    radial-gradient(ellipse at 15% 10%, rgba(106,76,147,0.25) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 20%, rgba(255,42,109,0.12) 0%, transparent 45%),
    radial-gradient(ellipse at 50% 95%, rgba(5,217,232,0.08) 0%, transparent 40%),
    var(--clr-bg);
  background-attachment: fixed;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1.2;
  letter-spacing: var(--ls-display);
}

h1 { font-size: var(--fs-h1); font-weight: 900; }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

a { color: var(--clr-secondary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--clr-primary); }

ul, ol { list-style: none; }

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

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

#main-content { scroll-margin-top: calc(var(--header-h) + 8px); display: block; }

.container {
  width: min(1200px, 100% - 48px);
  margin-inline: auto;
}

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

.skip-link {
  position: fixed; top: -100px; left: 16px; z-index: 9999;
  background: var(--clr-primary); color: #fff;
  padding: 10px 20px; border-radius: var(--radius-sm);
  font-weight: 700; text-decoration: none;
  box-shadow: 0 0 20px rgba(255,42,109,0.5);
  transition: top 0.3s ease;
}
.skip-link:focus-visible { top: 16px; }

.site-header {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--header-h); z-index: 1000;
  background: transparent;
  transition: background 0.35s ease, box-shadow 0.35s ease, backdrop-filter 0.35s ease;
}
.site-header.is-scrolled {
  background: rgba(46,26,71,0.86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 4px 24px rgba(0,0,0,0.35);
}
.site-header::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(255,42,109,0.4), rgba(5,217,232,0.3), transparent);
  opacity: 0.6;
  transition: opacity 0.3s ease;
}
.site-header.is-scrolled::after { opacity: 1; }

.site-header__inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}
.site-brand__mark {
  filter: drop-shadow(0 0 6px rgba(255,42,109,0.6));
  transition: filter 0.3s ease, transform 0.3s ease;
}
.site-brand:hover .site-brand__mark {
  filter: drop-shadow(0 0 14px rgba(255,42,109,0.9));
  transform: rotate(90deg);
}
.site-brand__text {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--clr-text);
  text-shadow: 0 0 16px rgba(255,42,109,0.35);
}
.site-brand:hover .site-brand__text { color: var(--clr-text); }

.site-nav { transition: opacity 0.3s ease; }
.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 1.75rem);
}
.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 8px 2px;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: rgba(248,240,229,0.82);
  text-decoration: none;
  transition: color 0.25s ease, text-shadow 0.25s ease;
}
.site-nav__link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-secondary));
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease-out;
  box-shadow: 0 0 8px rgba(255,42,109,0.5);
}
.site-nav__link:hover { color: var(--clr-text); }
.site-nav__link:hover::after,
.site-nav__link:focus-visible::after { transform: scaleX(1); }
.site-nav__link[aria-current="page"] {
  color: var(--clr-primary);
  text-shadow: 0 0 14px rgba(255,42,109,0.6);
}
.site-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.site-header__cta { flex-shrink: 0; }

.nav-toggle {
  display: none;
  position: relative;
  z-index: 1002;
  width: 46px; height: 46px;
  padding: 10px;
  background: transparent;
  border: 2px solid rgba(255,255,255,0.25);
  border-radius: 8px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.nav-toggle:hover { border-color: var(--clr-secondary); background: rgba(5,217,232,0.08); }
.nav-toggle__line {
  display: block;
  width: 22px; height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) { transform: translateY(7px) rotate(45deg); background: var(--clr-primary); }
.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); background: var(--clr-primary); }

.scroll-progress {
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 3px;
  overflow: hidden;
  pointer-events: none;
}
.scroll-progress i {
  display: block;
  width: 0%; height: 100%;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-secondary));
  box-shadow: 0 0 12px rgba(255,42,109,0.6), 0 0 20px rgba(5,217,232,0.3);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.72rem 1.4rem;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  transition: all 0.3s ease-out;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}
.btn--primary {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-rose));
  color: #fff;
  box-shadow: 0 0 18px rgba(255,42,109,0.35);
}
.btn--primary:hover {
  box-shadow: 0 0 32px rgba(255,42,109,0.6);
  transform: translateY(-2px);
  color: #fff;
}
.btn--primary:active { transform: translateY(0); }
.btn--ghost {
  background: transparent;
  color: var(--clr-text);
  border-color: rgba(5,217,232,0.5);
}
.btn--ghost:hover {
  background: rgba(5,217,232,0.1);
  border-color: var(--clr-secondary);
  box-shadow: 0 0 16px rgba(5,217,232,0.3);
  color: var(--clr-text);
  transform: translateY(-2px);
}
.btn--blue {
  background: linear-gradient(135deg, var(--clr-secondary), #03668F);
  color: #0B0A13;
  box-shadow: 0 0 16px rgba(5,217,232,0.25);
}
.btn--blue:hover {
  box-shadow: 0 0 28px rgba(5,217,232,0.5);
  transform: translateY(-2px);
  color: #0B0A13;
}

.site-footer {
  position: relative;
  background: var(--clr-bg-deep);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 0;
  overflow: hidden;
}
.site-footer::before {
  content: '';
  display: block;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--clr-primary), var(--clr-secondary), transparent);
  opacity: 0.7;
}
.site-footer::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 180px;
  background: radial-gradient(ellipse at 50% 100%, rgba(255,42,109,0.07), transparent 70%);
  pointer-events: none;
}
.site-footer__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 2rem;
  padding: 3.5rem 0 2.5rem;
}
.site-footer__brand { min-width: 0; }
.site-footer__brand .site-brand { margin-bottom: 1rem; }
.site-footer__about {
  font-size: 0.9375rem;
  color: rgba(248,240,229,0.7);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.site-footer__trust {
  font-size: 0.8125rem;
  color: rgba(248,240,229,0.45);
  line-height: 1.65;
  border-left: 2px solid rgba(255,42,109,0.4);
  padding-left: 0.875rem;
}
.site-footer__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-text);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  position: relative;
  padding-bottom: 8px;
}
.site-footer__title::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 28px; height: 2px;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-secondary));
  border-radius: 2px;
}
.site-footer__links li { margin-bottom: 0.65rem; }
.site-footer__link {
  font-size: 0.9375rem;
  color: rgba(248,240,229,0.7);
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.site-footer__link:hover {
  color: var(--clr-primary);
  padding-left: 6px;
}
.site-footer__contact {
  font-size: 0.9rem;
  color: rgba(248,240,229,0.7);
  line-height: 1.8;
}
.site-footer__contact li { margin-bottom: 0.4rem; }
.site-footer__bottom {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1.25rem 0 1.75rem;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.site-footer__copy {
  font-size: 0.875rem;
  color: rgba(248,240,229,0.5);
}
.site-footer__icp {
  font-size: 0.875rem;
  color: rgba(248,240,229,0.5);
}
.site-footer__icp::before {
  content: '';
  display: inline-block;
  width: 8px; height: 8px;
  margin-right: 6px;
  background: var(--clr-secondary);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(5,217,232,0.6);
  vertical-align: middle;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 0;
  font-size: var(--fs-small);
  color: rgba(248,240,229,0.55);
}
.breadcrumb a {
  color: var(--clr-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}
.breadcrumb a:hover { color: var(--clr-primary); }
.breadcrumb__sep { color: rgba(248,240,229,0.25); }
.breadcrumb__current { color: var(--clr-text); }

.glass-card {
  position: relative;
  background: var(--clr-glass);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
  transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
}
.glass-card:hover {
  border-color: rgba(5,217,232,0.35);
  box-shadow: 0 12px 40px rgba(0,0,0,0.35), 0 0 24px rgba(5,217,232,0.08);
  transform: translateY(-3px);
}
.glass-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--clr-text);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.glass-card__title::before {
  content: '';
  width: 10px; height: 10px;
  background: var(--clr-primary);
  transform: skewX(-20deg);
  box-shadow: 0 0 8px rgba(255,42,109,0.6);
  flex-shrink: 0;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.4;
  white-space: nowrap;
}
.tag--hot { background: rgba(255,42,109,0.15); color: var(--clr-primary); border: 1px solid rgba(255,42,109,0.4); }
.tag--new { background: rgba(5,217,232,0.12); color: var(--clr-secondary); border: 1px solid rgba(5,217,232,0.35); }
.tag--warn { background: rgba(255,159,28,0.12); color: var(--clr-warning); border: 1px solid rgba(255,159,28,0.4); }
.tag--ok { background: rgba(45,225,75,0.1); color: var(--clr-success); border: 1px solid rgba(45,225,75,0.35); }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--clr-glass);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
}
.legend__item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-small);
  color: var(--clr-text);
  letter-spacing: 0.03em;
}
.legend__dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.legend__dot--primary { background: var(--clr-primary); box-shadow: 0 0 6px var(--clr-primary); }
.legend__dot--secondary { background: var(--clr-secondary); box-shadow: 0 0 6px var(--clr-secondary); }
.legend__dot--warning { background: var(--clr-warning); box-shadow: 0 0 6px var(--clr-warning); }
.legend__dot--success { background: var(--clr-success); box-shadow: 0 0 6px var(--clr-success); }

.section-title {
  font-size: var(--fs-h2);
  font-weight: 900;
  letter-spacing: var(--ls-display);
  text-transform: uppercase;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.section-title::before {
  content: '';
  display: inline-block;
  width: 14px; height: 14px;
  background: var(--clr-primary);
  transform: skewX(-20deg);
  box-shadow: 0 0 10px rgba(255,42,109,0.7);
  flex-shrink: 0;
}

.grid { display: grid; gap: 1.25rem; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.page-section { padding: 4rem 0; }
.page-hero { padding: calc(var(--header-h) + 3rem) 0 3rem; position: relative; }
.page-hero__title {
  font-size: var(--fs-h1);
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.15;
  margin-bottom: 1rem;
}
.page-hero__lead {
  font-size: 1.125rem;
  color: rgba(248,240,229,0.75);
  max-width: 680px;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

[data-spy] {
  opacity: 0;
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  transition-delay: var(--spy-delay, 0s);
  will-change: opacity, transform;
}
[data-spy="fade-up"] { transform: translateY(24px); }
[data-spy="fade-down"] { transform: translateY(-24px); }
[data-spy="fade-left"] { transform: translateX(24px); }
[data-spy="fade-right"] { transform: translateX(-24px); }
[data-spy="zoom"] { transform: scale(0.92); }
[data-spy].is-visible { opacity: 1; transform: none; }

[data-section-highlight] { transition: border-color 0.4s ease, box-shadow 0.4s ease; }
[data-section-highlight].is-current {
  border-color: rgba(5,217,232,0.3);
  box-shadow: 0 0 40px rgba(5,217,232,0.06);
}

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

::selection { background: var(--clr-primary); color: #fff; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--clr-bg-deep); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--clr-primary), var(--clr-purple));
  border-radius: 5px;
  border: 2px solid var(--clr-bg-deep);
}

@media (min-width: 769px) and (max-width: 1024px) {
  .site-footer__grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; --fs-h1: 2.1rem; --fs-h2: 1.7rem; }

  .container { width: min(100% - 32px, 1200px); }

  .site-header__inner { gap: 0.75rem; }
  .site-header__cta { display: none; }

  .nav-toggle { display: flex; }

  .site-nav {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 1001;
    background: rgba(11, 10, 19, 0.96);
    backdrop-filter: blur(28px);
    -webkit-backdrop-filter: blur(28px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateX(100%);
    transition: opacity 0.4s ease-out, transform 0.4s ease-out, visibility 0.4s;
  }
  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
  }
  .site-nav__list {
    flex-direction: column;
    gap: 1.75rem;
    text-align: center;
    padding: 2rem;
  }
  .site-nav__link {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--clr-text);
  }
  .site-nav__link::after { height: 3px; }
  .site-nav__link[aria-current="page"] { color: var(--clr-primary); }

  .site-footer__grid { grid-template-columns: 1fr; gap: 1.75rem; padding: 2.5rem 0 1.75rem; }
  .site-footer__bottom { flex-direction: column; text-align: center; padding-bottom: 2rem; }

  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }

  .page-hero { padding-top: calc(var(--header-h) + 2rem); }
}

@media (min-width: 1025px) {
  .site-nav { display: block !important; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  [data-spy] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .site-brand:hover .site-brand__mark { transform: none; }
  .glass-card:hover { transform: none; }
  .btn:hover { transform: none; }
}