:root {
  --bg: #0f172a;
  --bg-2: #132037;
  --bg-3: #1e293b;
  --panel: rgba(19, 32, 56, 0.72);
  --panel-strong: rgba(22, 39, 68, 0.9);
  --text: #e6f1ff;
  --muted: #9db1d1;
  --soft: #c7d7ef;
  --line: rgba(79, 172, 254, 0.22);
  --line-strong: rgba(0, 242, 254, 0.45);
  --cyan: #00f2fe;
  --cyan-2: #4facfe;
  --pink: #ff007f;
  --pink-2: #d946ef;
  --shadow: 0 26px 70px rgba(2, 8, 23, 0.44);
  --glow-cyan: 0 0 24px rgba(0, 242, 254, 0.24);
  --glow-pink: 0 0 28px rgba(255, 0, 127, 0.2);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg) 0%, #101b32 46%, #0f172a 100%);
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(79, 172, 254, 0.055) 0, rgba(79, 172, 254, 0.055) 1px, transparent 1px, transparent 48px),
    repeating-linear-gradient(0deg, rgba(79, 172, 254, 0.035) 0, rgba(79, 172, 254, 0.035) 1px, transparent 1px, transparent 48px);
  opacity: 0.42;
}

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

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

svg {
  display: block;
}

section[id] {
  scroll-margin-top: 82px;
}

.container {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 100;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  padding: 10px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: #06111d;
  background: linear-gradient(135deg, var(--cyan), var(--cyan-2));
  font-weight: 700;
}

.skip-link:focus {
  width: auto;
  height: auto;
  overflow: visible;
  clip-path: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid rgba(0, 242, 254, 0.18);
  background:
    linear-gradient(90deg, rgba(15, 23, 42, 0.96), rgba(19, 32, 55, 0.96) 52%, rgba(30, 41, 59, 0.95));
  box-shadow: 0 16px 42px rgba(2, 8, 23, 0.36);
  backdrop-filter: blur(18px);
}

.header-inner {
  width: min(1200px, calc(100% - 32px));
  min-height: 66px;
  display: grid;
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
}

.brand {
  min-width: 0;
  max-width: 300px;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: transform 180ms ease;
}

.brand-mark {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  object-fit: cover;
  border: 2px solid rgba(0, 242, 254, 0.72);
  border-radius: 10px;
  box-shadow:
    0 0 0 1px rgba(255, 0, 127, 0.24),
    0 10px 24px rgba(0, 242, 254, 0.18);
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.brand-name {
  min-width: 0;
  color: var(--text);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.top-nav {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 1.35vw, 22px);
  overflow: visible;
}

.top-nav a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--soft);
  font-size: 16px;
  font-weight: 800;
  white-space: nowrap;
  transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.top-nav a svg {
  width: 21px;
  height: 21px;
  flex: 0 0 auto;
  transition: transform 160ms ease, filter 160ms ease;
}

.top-nav a svg circle,
.top-nav a svg path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.top-nav a:hover,
.top-nav a:focus,
.top-nav a[aria-current="true"] {
  color: var(--cyan);
  border-color: rgba(0, 242, 254, 0.72);
  background: rgba(0, 242, 254, 0.06);
  box-shadow:
    0 0 0 1px rgba(255, 0, 127, 0.18),
    0 0 18px rgba(0, 242, 254, 0.22);
  text-shadow: 0 0 12px rgba(0, 242, 254, 0.44);
}

.top-nav a:hover svg,
.top-nav a:focus svg,
.top-nav a[aria-current="true"] svg {
  filter: drop-shadow(0 0 8px rgba(0, 242, 254, 0.55));
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 38px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid rgba(0, 242, 254, 0.36);
  border-radius: 8px;
  color: var(--text);
  background: rgba(11, 21, 39, 0.58);
  box-shadow: 0 10px 24px rgba(0, 242, 254, 0.12);
  cursor: pointer;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform 180ms ease, opacity 160ms ease, background-color 160ms ease;
}

.nav-toggle:hover,
.nav-toggle:focus {
  border-color: rgba(0, 242, 254, 0.72);
  box-shadow: 0 0 18px rgba(0, 242, 254, 0.22);
}

.site-header.is-menu-open .nav-toggle {
  color: var(--cyan);
  border-color: rgba(255, 0, 127, 0.62);
}

.site-header.is-menu-open .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header.is-menu-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

.site-header.is-menu-open .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.button {
  display: inline-flex;
  position: relative;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
  overflow: hidden;
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease, color 160ms ease, box-shadow 160ms ease;
}

.button::after {
  content: "";
  position: absolute;
  inset: -40% auto -40% -70%;
  width: 48%;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.34), transparent);
  transform: skewX(-18deg);
  transition: left 360ms ease;
}

.button svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
}

.button svg path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.button:hover,
.button:focus {
  transform: translateY(-1px);
}

.button:hover::after,
.button:focus::after {
  left: 122%;
}

.button-primary {
  color: #04111d;
  background: linear-gradient(135deg, var(--cyan), var(--cyan-2));
  box-shadow: 0 12px 34px rgba(0, 242, 254, 0.22);
}

.button-primary:hover,
.button-primary:focus {
  color: #04111d;
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow:
    0 16px 40px rgba(0, 242, 254, 0.28),
    0 0 22px rgba(79, 172, 254, 0.24);
}

.site-header .header-cta {
  justify-self: end;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 8px;
  color: #fff;
  background: linear-gradient(135deg, var(--cyan-2) 0%, var(--pink) 100%);
  box-shadow: 0 12px 30px rgba(0, 242, 254, 0.16), 0 10px 28px rgba(255, 0, 127, 0.18);
}

.site-header .header-cta:hover,
.site-header .header-cta:focus {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.65);
  transform: translateY(-2px);
}

.button-secondary {
  color: var(--text);
  border-color: rgba(0, 242, 254, 0.32);
  background: rgba(15, 23, 42, 0.46);
}

.button-secondary:hover,
.button-secondary:focus {
  border-color: var(--pink);
  box-shadow:
    0 0 0 1px rgba(0, 242, 254, 0.18),
    0 0 20px rgba(255, 0, 127, 0.18);
}

.section-band {
  position: relative;
  padding: 72px 0;
  border-bottom: 1px solid rgba(79, 172, 254, 0.14);
  background: rgba(15, 23, 42, 0.84);
}

.section-band-alt {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.72), rgba(15, 23, 42, 0.88));
}

.hero {
  overflow: hidden;
  padding: 0;
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.98) 0%, rgba(19, 32, 55, 0.96) 56%, rgba(30, 41, 59, 0.9) 100%);
}

.hero::after,
.section-band::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(0, 242, 254, 0.05), transparent 28%),
    linear-gradient(180deg, transparent 0%, rgba(255, 0, 127, 0.035) 100%);
}

.hero-inner,
.split-layout,
.module-layout,
.text-layout,
.cta-inner,
.footer-inner {
  position: relative;
  z-index: 1;
}

.hero-inner {
  min-height: 640px;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  align-items: center;
  gap: 44px;
  padding: 58px 0 76px;
}

.hero-copy {
  min-width: 0;
}

.eyebrow,
.section-kicker,
.mini-label {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

.hero-brand {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.hero-logo {
  width: 56px;
  height: 56px;
  flex: 0 0 auto;
  object-fit: cover;
  border: 1px solid rgba(0, 242, 254, 0.38);
  border-radius: 8px;
  box-shadow: 0 0 28px rgba(0, 242, 254, 0.22);
}

.hero-brand-copy {
  min-width: 0;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  color: #f3f8ff;
  font-size: 42px;
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 18px;
  color: #f3f8ff;
  font-size: 32px;
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  color: #eef6ff;
  font-size: 18px;
  line-height: 1.35;
  letter-spacing: 0;
}

.hero-lead,
.section-copy p,
.content-item p,
.guide-item li,
.feature-item p,
.faq-item p,
.footer-note {
  color: var(--muted);
}

.hero-lead {
  max-width: 66ch;
  margin: 14px 0 0;
  font-size: 16px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 24px;
}

.meta-item {
  min-width: 0;
  padding: 12px 14px;
  border-top: 1px solid rgba(0, 242, 254, 0.26);
  background: rgba(7, 13, 26, 0.36);
}

.meta-item span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.meta-item strong {
  display: block;
  margin-top: 3px;
  color: var(--text);
  font-size: 15px;
  line-height: 1.35;
}

.hero-visual {
  position: relative;
  min-height: 460px;
}

.frame {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease, background-color 220ms ease;
}

.frame img {
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 420ms ease, filter 260ms ease;
}

.frame figcaption {
  padding: 12px 14px;
  border-top: 1px solid rgba(79, 172, 254, 0.18);
  color: var(--soft);
  background: rgba(8, 15, 31, 0.88);
  font-size: 14px;
  line-height: 1.55;
}

.content-item,
.guide-item,
.feature-item,
.text-card,
.visual-card,
.feature-visual-copy,
.media-row-copy,
.fact-grid div,
.timeline li,
.faq-item,
.friend-link-list a {
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease,
    background-color 220ms ease,
    color 220ms ease;
}

.frame-main {
  width: 100%;
}

.frame-main img {
  aspect-ratio: 16 / 10;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(320px, 0.94fr);
  align-items: start;
  gap: 48px;
}

.split-layout-reverse {
  grid-template-columns: minmax(320px, 0.94fr) minmax(0, 1.06fr);
}

.module-layout {
  max-width: 1040px;
}

.module-layout .section-copy > p {
  max-width: 78ch;
}

.text-layout {
  max-width: 940px;
}

.text-layout .section-copy > p {
  max-width: 78ch;
}

.section-copy {
  min-width: 0;
}

.section-copy > p {
  margin: 0 0 18px;
  max-width: 70ch;
}

.section-copy > h3 {
  margin-top: 22px;
}

.section-media {
  align-self: start;
}

.section-media img {
  aspect-ratio: 16 / 10;
}

.inline-media {
  margin: 26px 0 0;
}

.inline-media img {
  aspect-ratio: 16 / 8.6;
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0 0;
}

.fact-grid div {
  min-width: 0;
  padding: 14px 16px;
  border: 1px solid rgba(79, 172, 254, 0.18);
  border-radius: 8px;
  background: rgba(11, 21, 39, 0.52);
}

.fact-grid dt {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
}

.fact-grid dd {
  margin: 5px 0 0;
  color: var(--text);
  font-weight: 700;
  line-height: 1.45;
}

.content-grid,
.guide-grid,
.feature-grid {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.content-grid,
.feature-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.guide-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.content-item,
.guide-item,
.feature-item {
  min-width: 0;
  padding: 18px;
  border: 1px solid rgba(79, 172, 254, 0.18);
  border-radius: 8px;
  background: rgba(11, 21, 39, 0.46);
}

.content-item h3,
.guide-item h3,
.feature-item h3 {
  font-size: 18px;
}

.content-item p,
.feature-item p {
  margin: 0;
}

.guide-item ul {
  margin: 12px 0 0;
  padding-left: 20px;
}

.guide-item li + li {
  margin-top: 8px;
}

.content-briefs,
.content-showcase {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.text-card,
.visual-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(79, 172, 254, 0.18);
  border-radius: 8px;
  background: rgba(11, 21, 39, 0.46);
}

.text-card {
  padding: 18px;
}

.text-card p {
  margin: 0;
  color: var(--muted);
}

.visual-card {
  margin: 0;
  box-shadow: var(--shadow);
}

.visual-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.visual-card figcaption {
  padding: 16px 18px 18px;
  border-top: 1px solid rgba(79, 172, 254, 0.18);
  background: rgba(8, 15, 31, 0.86);
}

.visual-card figcaption p {
  margin: 0;
  color: var(--muted);
}

.feature-visual {
  display: grid;
  grid-template-columns: minmax(320px, 0.92fr) minmax(0, 1fr);
  gap: 16px;
  margin: 26px 0 0;
  align-items: start;
}

.feature-visual .frame {
  box-shadow: var(--shadow);
}

.feature-visual .frame img {
  aspect-ratio: 16 / 9;
}

.feature-visual-copy {
  min-width: 0;
  padding: 22px;
  border: 1px solid rgba(79, 172, 254, 0.18);
  border-radius: 8px;
  background: rgba(11, 21, 39, 0.46);
}

.feature-visual-copy p {
  margin: 0;
  color: var(--muted);
}

.media-row {
  display: grid;
  grid-template-columns: minmax(330px, 0.98fr) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  margin-top: 18px;
}

.media-row-image img {
  aspect-ratio: 16 / 9;
}

.media-row-copy {
  min-width: 0;
  padding: 22px;
  border: 1px solid rgba(79, 172, 254, 0.18);
  border-radius: 8px;
  background: rgba(11, 21, 39, 0.46);
}

.media-row-copy p {
  margin: 0;
  color: var(--muted);
}

.timeline {
  display: grid;
  gap: 0;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.timeline li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 12px;
  padding: 15px 0;
  border-top: 1px solid rgba(79, 172, 254, 0.16);
}

.timeline li:first-child {
  border-top: 0;
}

.timeline-mark {
  width: 10px;
  height: 10px;
  margin-top: 10px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 18px rgba(0, 242, 254, 0.6);
}

.timeline-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 14px;
}

.timeline-meta span {
  color: var(--pink-2);
  font-weight: 800;
}

.timeline h3 {
  margin: 0;
  font-size: 16px;
}

.faq-layout {
  align-items: start;
}

.faq-list {
  margin-top: 24px;
  border-top: 1px solid rgba(79, 172, 254, 0.2);
}

.faq-item {
  border-bottom: 1px solid rgba(79, 172, 254, 0.2);
}

.faq-item summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 18px 42px 18px 0;
  color: var(--text);
  font-weight: 800;
  line-height: 1.5;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 18px;
  color: var(--cyan);
  font-size: 22px;
  font-weight: 600;
  line-height: 1;
}

.faq-item[open] summary::after {
  content: "-";
}

.faq-item p {
  margin: 0;
  padding: 0 0 18px;
}

@media (hover: hover) and (pointer: fine) {
  .brand:hover {
    transform: translateY(-1px);
  }

  .brand:hover .brand-mark {
    border-color: rgba(255, 0, 127, 0.78);
    box-shadow:
      0 0 0 1px rgba(0, 242, 254, 0.34),
      0 0 22px rgba(0, 242, 254, 0.22),
      0 14px 28px rgba(2, 8, 23, 0.28);
    transform: scale(1.03);
  }

  .frame:hover,
  .visual-card:hover,
  .text-card:hover,
  .content-item:hover,
  .guide-item:hover,
  .feature-item:hover,
  .feature-visual-copy:hover,
  .media-row-copy:hover,
  .fact-grid div:hover,
  .timeline li:hover,
  .friend-link-list a:hover {
    transform: translateY(-3px);
  }

  .frame:hover,
  .visual-card:hover,
  .text-card:hover,
  .content-item:hover,
  .guide-item:hover,
  .feature-item:hover,
  .feature-visual-copy:hover,
  .media-row-copy:hover,
  .fact-grid div:hover {
    border-color: rgba(0, 242, 254, 0.42);
    box-shadow:
      0 0 0 1px rgba(255, 0, 127, 0.12),
      0 18px 44px rgba(2, 8, 23, 0.34),
      0 0 26px rgba(0, 242, 254, 0.12);
    background: rgba(11, 21, 39, 0.6);
  }

  .frame:hover img,
  .visual-card:hover img {
    transform: scale(1.04);
    filter: saturate(1.08) contrast(1.02);
  }

  .timeline li:hover {
    border-top-color: rgba(0, 242, 254, 0.34);
    background: rgba(11, 21, 39, 0.34);
  }

  .timeline li:hover .timeline-mark {
    transform: scale(1.2);
    box-shadow: 0 0 24px rgba(0, 242, 254, 0.78);
  }

  .faq-item:hover {
    border-bottom-color: rgba(0, 242, 254, 0.34);
    background: rgba(11, 21, 39, 0.24);
  }

  .faq-item summary:hover {
    color: var(--cyan);
    text-shadow: 0 0 10px rgba(0, 242, 254, 0.24);
  }

  .friend-link-list a:hover {
    border-color: rgba(0, 242, 254, 0.72);
  }
}

.cta-band {
  padding: 62px 0;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.cta-inner h2 {
  margin-bottom: 10px;
}

.cta-inner p {
  max-width: 68ch;
  margin: 0;
  color: var(--muted);
}

.cta-button {
  flex: 0 0 auto;
}

.friend-links {
  position: relative;
  overflow: hidden;
  padding: 46px 0 52px;
  border-top: 1px solid rgba(0, 242, 254, 0.22);
  border-bottom: 1px solid rgba(255, 0, 127, 0.18);
  background:
    radial-gradient(circle at 28% 20%, rgba(0, 242, 254, 0.18), transparent 30%),
    radial-gradient(circle at 72% 32%, rgba(255, 0, 127, 0.22), transparent 34%),
    linear-gradient(135deg, var(--bg) 0%, var(--bg-2) 45%, var(--bg-3) 100%);
}

.friend-links::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(0, 242, 254, 0.08), transparent 45%, rgba(255, 0, 127, 0.08)),
    repeating-linear-gradient(90deg, rgba(79, 172, 254, 0.055) 0, rgba(79, 172, 254, 0.055) 1px, transparent 1px, transparent 52px);
}

.friend-links-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.friend-links h2 {
  margin: 0 0 20px;
  font-size: 28px;
  text-shadow: 0 0 18px rgba(0, 242, 254, 0.2);
}

.friend-link-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.friend-link-list a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  border: 1px solid rgba(0, 242, 254, 0.28);
  border-radius: 999px;
  color: var(--text);
  background: rgba(11, 21, 39, 0.58);
  box-shadow: 0 10px 28px rgba(2, 8, 23, 0.22);
  font-weight: 800;
  line-height: 1.3;
  transition: color 160ms ease, border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease, background-color 160ms ease;
}

.friend-link-list a:hover,
.friend-link-list a:focus {
  color: var(--cyan);
  border-color: rgba(0, 242, 254, 0.72);
  background: rgba(0, 242, 254, 0.08);
  box-shadow:
    0 0 0 1px rgba(255, 0, 127, 0.2),
    0 0 22px rgba(0, 242, 254, 0.22);
  text-shadow: 0 0 12px rgba(0, 242, 254, 0.38);
  transform: translateY(-1px);
}

.site-footer {
  padding: 34px 0;
  color: var(--muted);
  background: rgba(15, 23, 42, 0.96);
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.footer-brand,
.footer-copy {
  margin: 0;
  color: var(--text);
  font-weight: 800;
}

.footer-note {
  margin: 6px 0 0;
}

@media (max-width: 1380px) {
  .header-inner {
    width: min(1200px, calc(100% - 32px));
    grid-template-columns: minmax(186px, 220px) minmax(0, 1fr) auto;
    gap: 12px;
  }

  .brand {
    max-width: 220px;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
  }

  .brand-name {
    font-size: 15px;
  }

  .top-nav {
    gap: 10px;
  }

  .top-nav a {
    font-size: 14px;
  }

  .top-nav a svg {
    width: 18px;
    height: 18px;
  }
}

@media (max-width: 1120px) {
  .header-inner {
    grid-template-columns: minmax(166px, 200px) minmax(0, 1fr) auto;
    gap: 10px;
  }

  .brand {
    max-width: 200px;
    gap: 9px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .brand-name {
    font-size: 14px;
    line-height: 1.22;
  }

  .top-nav {
    gap: 9px;
  }

  .top-nav a {
    gap: 5px;
    padding: 7px 8px;
    font-size: 13px;
  }

  .top-nav a svg {
    width: 17px;
    height: 17px;
  }

  .site-header .header-cta {
    min-height: 38px;
    padding: 0 14px;
    font-size: 13px;
  }
}

@media (max-width: 960px) {
  .hero-inner,
  .split-layout,
  .split-layout-reverse {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    min-height: auto;
    gap: 34px;
    padding: 48px 0 68px;
  }

  .hero-visual {
    min-height: 0;
  }

  .split-layout-reverse > .frame {
    order: 2;
  }

  .split-layout-reverse > .section-copy {
    order: 1;
  }
}

@media (max-width: 900px) {
  section[id] {
    scroll-margin-top: 84px;
  }

  .header-inner {
    min-height: auto;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px 12px;
    padding: 9px 0;
  }

  .brand {
    max-width: none;
    gap: 11px;
    grid-column: 1;
    grid-row: 1;
  }

  .nav-toggle {
    display: inline-flex;
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
  }

  .top-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    display: none;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    justify-content: stretch;
    gap: 8px;
    width: 100%;
    padding-top: 8px;
  }

  .top-nav a {
    justify-content: center;
    gap: 5px;
    padding: 6px 6px;
    font-size: 13px;
  }

  .site-header .header-cta {
    display: none;
    grid-column: 1 / -1;
    grid-row: 3;
    justify-self: stretch;
    min-height: 36px;
    padding: 9px 12px;
    font-size: 13px;
  }

  .site-header.is-menu-open .top-nav {
    display: grid;
  }

  .site-header.is-menu-open .header-cta {
    display: inline-flex;
  }

  .top-nav a svg {
    width: 17px;
    height: 17px;
  }
}

@media (max-width: 760px) {
  .top-nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 5px 8px;
    padding-top: 8px;
  }

  .top-nav a {
    min-width: 0;
    padding: 5px 4px;
    font-size: 12px;
  }

  .section-band {
    padding: 52px 0;
  }

  .hero {
    padding: 0;
  }

  .hero-inner {
    padding-top: 40px;
    padding-bottom: 60px;
  }

  .hero-brand {
    flex-direction: column;
    gap: 12px;
  }

  .hero-logo {
    width: 50px;
    height: 50px;
  }

  h1 {
    font-size: 30px;
  }

  h2 {
    font-size: 26px;
  }

  h3 {
    font-size: 17px;
  }

  .hero-lead {
    font-size: 15px;
  }

  .hero-meta,
  .fact-grid,
  .content-grid,
  .content-briefs,
  .content-showcase,
  .media-row,
  .guide-grid,
  .feature-visual,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .cta-inner,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .friend-links {
    padding: 38px 0 42px;
  }

  .friend-links h2 {
    font-size: 24px;
  }

  .friend-link-list {
    gap: 10px;
  }

  .friend-link-list a {
    width: 100%;
    min-height: 40px;
    padding: 9px 12px;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(100% - 24px, 1180px);
  }

  .brand-mark {
    width: 32px;
    height: 32px;
  }

  .brand-name {
    font-size: 12px;
    line-height: 1.2;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .hero-actions .button {
    justify-content: center;
  }

  .header-cta {
    width: auto;
  }

  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 24px;
  }

}

@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;
  }
}