* {
  box-sizing: border-box;
}

:root {
  --bg: #080913;
  --panel: rgba(17, 19, 36, 0.84);
  --panel-strong: rgba(25, 27, 50, 0.94);
  --text: #fff7ff;
  --muted: #c9bedb;
  --soft: #9589ad;
  --line: rgba(255, 255, 255, 0.13);
  --pink: #ff5ca8;
  --magenta: #ff2fb3;
  --violet: #8d6bff;
  --deep-violet: #25124a;
  --cyan: #59e8ff;
  --gold: #ffe2a6;
  --danger: #ff6d8a;
  --success: #76ffcf;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

.site-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 18% 10%, rgba(255, 92, 168, 0.20), transparent 28rem),
    radial-gradient(circle at 82% 24%, rgba(89, 232, 255, 0.12), transparent 30rem),
    radial-gradient(circle at 55% 88%, rgba(141, 107, 255, 0.16), transparent 32rem),
    linear-gradient(135deg, #080913 0%, #10152d 48%, #080913 100%);
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.11;
  background-image:
    linear-gradient(rgba(255,255,255,0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.12) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,1), transparent 86%);
}

.site-header {
  width: min(1180px, calc(100% - 32px));
  margin: 20px auto 0;
  padding: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(8, 9, 19, 0.76);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
  position: sticky;
  top: 16px;
  z-index: 20;
}

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

.brand-mark {
  width: 54px;
  height: 54px;
  object-fit: contain;
  image-rendering: pixelated;
  filter:
    drop-shadow(0 0 18px rgba(255, 92, 168, 0.42))
    drop-shadow(0 0 12px rgba(89, 232, 255, 0.22));
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  letter-spacing: -0.02em;
}

.brand small {
  color: var(--muted);
  margin-top: 2px;
  font-size: 0.78rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  color: var(--muted);
  padding: 10px 11px;
  border-radius: 14px;
  transition: 160ms ease;
  font-size: 0.96rem;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--text);
  background: rgba(255,255,255,0.08);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  width: 44px;
  height: 44px;
  padding: 10px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 6px 0;
  background: var(--text);
  border-radius: 10px;
}

.section-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 84px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 48px;
  align-items: center;
  min-height: calc(100vh - 112px);
}

.eyebrow {
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-weight: 900;
  margin: 0 0 14px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(3rem, 8vw, 6.8rem);
  line-height: 0.92;
  letter-spacing: -0.07em;
  max-width: 820px;
  margin-bottom: 24px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
  letter-spacing: -0.05em;
  margin-bottom: 18px;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

p {
  color: var(--muted);
  line-height: 1.72;
}

.hero-text {
  font-size: 1.08rem;
  max-width: 680px;
}

.hero-actions,
.action-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 16px;
  font-weight: 900;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--pink), var(--violet));
  color: white;
  box-shadow: 0 14px 38px rgba(255, 92, 168, 0.22);
}

.btn-secondary {
  background: rgba(255,255,255,0.08);
  color: var(--text);
  border-color: var(--line);
}

.btn.disabled,
button:disabled,
input:disabled,
textarea:disabled {
  cursor: not-allowed;
  opacity: 0.66;
}

.status-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.status-strip span {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  color: var(--muted);
}

.status-strip b {
  color: var(--text);
  margin-right: 6px;
}

.hero-panel {
  display: flex;
  justify-content: center;
}

.archive-card,
.card,
.feature-card,
.news-card,
.download-card,
.form-card,
.notice-card {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
  border-radius: 28px;
}

.archive-card {
  width: min(100%, 430px);
  min-height: 560px;
  padding: 26px;
  position: relative;
  overflow: hidden;
}

.archive-card::before,
.card::before,
.form-card::before {
  content: "";
  position: absolute;
  inset: -2px;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 12%, rgba(255, 92, 168, 0.20), transparent 14rem),
    radial-gradient(circle at 70% 80%, rgba(89, 232, 255, 0.12), transparent 14rem);
  z-index: -1;
}

.card-topline,
.card-stats {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  color: var(--muted);
}

.card-topline strong,
.card-stats strong {
  color: var(--text);
}

.hero-icon {
  display: block;
  width: min(260px, 76%);
  height: auto;
  margin: 38px auto 28px;
  image-rendering: pixelated;
  filter:
    drop-shadow(0 0 22px rgba(255, 92, 168, 0.36))
    drop-shadow(0 0 18px rgba(89, 232, 255, 0.18));
}

.card-stats {
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.section-heading,
.page-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.page-heading {
  padding-top: 58px;
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 22px;
  align-items: start;
}

.feature-grid,
.quick-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card,
.news-card,
.download-card,
.form-card,
.notice-card,
.card {
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: rgba(255,255,255,0.08);
  margin-bottom: 22px;
  color: var(--gold);
}

.news-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.news-date,
.tag {
  color: var(--cyan);
  font-size: 0.86rem;
  font-weight: 900;
}

.form-card {
  display: grid;
  gap: 14px;
  background: var(--panel-strong);
}

.form-card label {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 750;
}

.form-card input,
.form-card textarea,
.form-card select {
  width: 100%;
  min-height: 50px;
  border-radius: 15px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.08);
  color: var(--text);
  padding: 0 14px;
  outline: none;
}

.form-card textarea {
  min-height: 150px;
  padding: 14px;
  resize: vertical;
}

.form-card input:focus,
.form-card textarea:focus,
.form-card select:focus {
  border-color: rgba(89, 232, 255, 0.65);
  box-shadow: 0 0 0 4px rgba(89, 232, 255, 0.09);
}

.form-note,
.small-note {
  color: var(--soft);
  font-size: 0.92rem;
}

.download-version {
  display: grid;
  gap: 12px;
  margin: 20px 0;
}

.version-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.version-row strong {
  color: var(--text);
}

.code-box {
  display: block;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(0,0,0,0.24);
  color: var(--cyan);
  overflow-x: auto;
}

.site-footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto 22px;
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer div {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.site-footer a {
  color: var(--muted);
}

@media (max-width: 980px) {
  .site-nav a {
    font-size: 0.9rem;
    padding: 9px 8px;
  }
}

@media (max-width: 860px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    position: absolute;
    left: 14px;
    right: 14px;
    top: 82px;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(8, 9, 19, 0.98);
  }

  .site-nav.is-open {
    display: flex;
  }

  .hero,
  .page-layout,
  .feature-grid,
  .quick-grid,
  .news-list {
    grid-template-columns: 1fr;
  }

  .section-shell {
    padding: 58px 0;
  }

  .hero {
    gap: 26px;
    min-height: auto;
    padding-top: 56px;
  }

  .archive-card {
    min-height: 460px;
  }

  .site-footer {
    flex-direction: column;
  }
}