:root {
  --bg: #f5f6fa;
  --bg-soft: #e6e9f0;
  --surface: rgba(255, 255, 255, 0.86);
  --surface-solid: #ffffff;
  --text: #121722;
  --muted: #596170;
  --line: #cfd6e3;
  --metal: #a1a8b8;
  --silver: #b0c4de;
  --accent: #ff66b2;
  --accent-strong: #ff80df;
  --cyan: #3fd9ff;
  --deep: #07101c;
  --shadow: 0 18px 48px rgba(42, 52, 72, 0.14);
  --shadow-hover: 0 24px 62px rgba(42, 52, 72, 0.18);
  --glow-pink: 0 0 0 1px rgba(255, 102, 178, 0.26), 0 16px 36px rgba(255, 102, 178, 0.18);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --radius: 8px;
  --container: 1180px;
  --header-height: 72px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(90deg, rgba(63, 217, 255, 0.055) 1px, transparent 1px),
    linear-gradient(0deg, rgba(161, 168, 184, 0.16) 1px, transparent 1px),
    var(--bg);
  background-size: 42px 42px;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
input,
summary {
  font: inherit;
}

svg {
  width: 1.1em;
  height: 1.1em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 1000;
  padding: 10px 14px;
  color: #fff;
  background: var(--deep);
  border-radius: var(--radius);
  transform: translateY(-140%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: var(--header-height);
  border-bottom: 1px solid rgba(207, 214, 227, 0.72);
  background: rgba(245, 246, 250, 0.84);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(var(--container), calc(100% - 32px));
  min-height: var(--header-height);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-weight: 800;
  color: var(--deep);
  transition: transform 0.22s var(--ease);
}

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

.brand-mark {
  display: block;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  overflow: hidden;
  border: 1px solid rgba(255, 102, 178, 0.5);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(230, 233, 240, 0.72));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.72), 0 10px 24px rgba(255, 102, 178, 0.14);
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.brand:hover .brand-mark,
.brand:focus-visible .brand-mark {
  border-color: rgba(255, 102, 178, 0.82);
  box-shadow: var(--glow-pink);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.brand-text {
  white-space: nowrap;
}

.nav-menu {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
}

.nav-menu a {
  position: relative;
  isolation: isolate;
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: #303847;
  font-size: 14px;
  font-weight: 650;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, text-shadow 0.2s ease, transform 0.2s ease;
}

.nav-menu a svg {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
  color: var(--accent);
  transition: color 0.22s var(--ease), transform 0.22s var(--ease);
}

.nav-menu a:hover svg,
.nav-menu a:focus-visible svg,
.nav-menu a.is-active svg {
  color: var(--cyan);
  transform: translateY(-1px);
}

.nav-menu a::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: -1;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 102, 178, 0.28), rgba(255, 102, 178, 0));
  box-shadow: 0 0 0 0 rgba(255, 102, 178, 0);
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.35);
  transition: opacity 0.22s var(--ease), transform 0.22s var(--ease), box-shadow 0.22s var(--ease), background 0.22s var(--ease);
  display: none;
}

.nav-menu a:hover,
.nav-menu a:focus-visible,
.nav-menu a.is-active {
  color: #d72592;
  border-color: rgba(255, 102, 178, 0.72);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 0 0 4px rgba(255, 102, 178, 0.08), 0 10px 24px rgba(255, 102, 178, 0.12);
  text-shadow: 0 0 14px rgba(255, 102, 178, 0.46);
}

.nav-menu a:hover::after,
.nav-menu a:focus-visible::after,
.nav-menu a.is-active::after {
  opacity: 1;
  background: radial-gradient(circle, rgba(255, 128, 223, 0.34), rgba(63, 217, 255, 0.12) 58%, rgba(63, 217, 255, 0));
  box-shadow: 0 0 0 10px rgba(255, 102, 178, 0.06);
  transform: translate(-50%, -50%) scale(1.65);
}

.nav-menu .nav-cta {
  margin-left: 8px;
  color: #fff;
  background: var(--deep);
  border: 1px solid rgba(255, 128, 223, 0.52);
  border-radius: 999px;
  box-shadow: 0 12px 28px rgba(7, 16, 28, 0.18);
}

.nav-menu .nav-cta svg {
  color: #fff;
}

.nav-menu .nav-cta:hover,
.nav-menu .nav-cta:focus-visible {
  color: #fff;
  border-color: rgba(255, 128, 223, 0.52);
  background: var(--deep);
  box-shadow: 0 16px 32px rgba(7, 16, 28, 0.22);
  text-shadow: none;
  transform: translateY(-2px);
}

.nav-menu .nav-cta:hover svg,
.nav-menu .nav-cta:focus-visible svg {
  color: #fff;
  transform: none;
}

.nav-menu .nav-cta::after {
  background: rgba(255, 255, 255, 0.72);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--deep);
  background: var(--surface-solid);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

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

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

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

.hero {
  position: relative;
  min-height: 78vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: #fff;
  background: var(--deep);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 18%, transparent 82%, rgba(255, 255, 255, 0.04)),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 5px);
  opacity: 0.42;
  mix-blend-mode: screen;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(1.08) contrast(1.04);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 16, 28, 0.94), rgba(7, 16, 28, 0.66) 46%, rgba(7, 16, 28, 0.18)),
    linear-gradient(0deg, rgba(7, 16, 28, 0.58), transparent 42%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(var(--container), calc(100% - 32px));
  margin: 0 auto;
  padding: 96px 0 64px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: 56px;
  line-height: 1.08;
  letter-spacing: 0;
  text-wrap: balance;
}

.hero-copy {
  max-width: 720px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.btn {
  position: relative;
  overflow: hidden;
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  white-space: nowrap;
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease), background 0.22s var(--ease), border-color 0.22s var(--ease);
}

.btn svg {
  position: relative;
  z-index: 1;
  flex: 0 0 auto;
}

.btn span,
.btn {
  z-index: 0;
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 0%, rgba(255, 255, 255, 0.34) 45%, transparent 72%);
  transform: translateX(-120%);
  transition: transform 0.55s var(--ease);
  pointer-events: none;
}

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

.btn:hover::before,
.btn:focus-visible::before {
  transform: translateX(120%);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #ff66b2, #ff80df, #ff66b2);
  background-size: 180% 180%;
  border-radius: 999px;
  box-shadow: 0 16px 34px rgba(255, 102, 178, 0.28);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-position: 100% 50%;
  box-shadow: 0 20px 42px rgba(255, 102, 178, 0.34);
}

.btn-secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.34);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: rgba(255, 128, 223, 0.78);
  background: rgba(255, 255, 255, 0.16);
  box-shadow: 0 18px 36px rgba(7, 16, 28, 0.22);
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  max-width: 860px;
  margin: 42px 0 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.16);
}

.hero-facts div {
  min-height: 82px;
  padding: 16px;
  background: rgba(7, 16, 28, 0.46);
  transition: background 0.22s var(--ease), transform 0.22s var(--ease);
}

.hero-facts div:hover {
  background: rgba(7, 16, 28, 0.68);
  transform: translateY(-2px);
}

.hero-facts dt {
  color: rgba(255, 255, 255, 0.58);
  font-size: 12px;
  font-weight: 700;
}

.hero-facts dd {
  margin: 4px 0 0;
  color: #fff;
  font-weight: 800;
}

.quick-strip {
  background: var(--surface-solid);
  border-bottom: 1px solid var(--line);
}

.strip-inner {
  width: min(var(--container), calc(100% - 32px));
  min-height: 62px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  overflow-x: auto;
  scrollbar-width: none;
}

.strip-inner::-webkit-scrollbar {
  display: none;
}

.strip-inner span {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #293142;
  background: #fff;
  font-size: 14px;
  font-weight: 750;
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), box-shadow 0.22s var(--ease), color 0.22s var(--ease);
}

.strip-inner span:hover {
  color: var(--deep);
  border-color: rgba(255, 102, 178, 0.72);
  box-shadow: var(--glow-pink);
  transform: translateY(-2px);
}

.section {
  padding: 92px 0;
}

.section:nth-of-type(even) {
  background: rgba(255, 255, 255, 0.62);
}

.section-head,
.media-text,
.feature-grid,
.wide-media,
.steps-layout,
.update-grid,
.gallery,
.faq-list,
.cta-band,
.friend-links,
.site-footer {
  width: min(var(--container), calc(100% - 32px));
  margin-left: auto;
  margin-right: auto;
}

.section-head {
  max-width: 870px;
  margin-bottom: 34px;
  text-align: center;
}

.section-head h2 {
  margin: 0;
  color: var(--deep);
  font-size: 36px;
  line-height: 1.22;
  letter-spacing: 0;
  text-wrap: balance;
}

.section-head p:not(.eyebrow) {
  margin: 14px 0 0;
  margin-left: auto;
  margin-right: auto;
  color: var(--muted);
  font-size: 17px;
}

.media-text {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  align-items: center;
  gap: 42px;
}

.media-text.reverse {
  grid-template-columns: minmax(320px, 0.92fr) minmax(0, 1.08fr);
}

.media-text.reverse .media-frame {
  order: 2;
}

.media-frame {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(176, 196, 222, 0.7);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease), border-color 0.28s var(--ease);
}

.media-frame img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 0.5s var(--ease), filter 0.28s var(--ease);
}

.media-frame:hover,
.media-frame:focus-within {
  border-color: rgba(255, 102, 178, 0.58);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.media-frame:hover img,
.media-frame:focus-within img {
  filter: saturate(1.08) contrast(1.03);
  transform: scale(1.035);
}

.media-frame.compact img {
  aspect-ratio: 16 / 9;
}

.media-frame figcaption {
  padding: 12px 14px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.92);
  font-size: 14px;
}

.prose h3,
.feature-stack h3,
.steps-list h3,
.feature-card h3,
.update-grid h3 {
  margin: 0;
  color: var(--deep);
  font-size: 21px;
  line-height: 1.35;
  letter-spacing: 0;
}

.prose p,
.feature-stack p,
.steps-list p,
.feature-card p,
.update-grid p {
  margin: 10px 0 0;
  color: var(--muted);
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: #2f3849;
  font-weight: 650;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 14px;
  height: 8px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-card,
.steps-list article,
.feature-stack article,
.update-grid article,
.faq-list details {
  border: 1px solid rgba(176, 196, 222, 0.72);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 12px 32px rgba(42, 52, 72, 0.08);
  transition: transform 0.24s var(--ease), box-shadow 0.24s var(--ease), border-color 0.24s var(--ease), background 0.24s var(--ease);
}

.feature-card:hover,
.steps-list article:hover,
.feature-stack article:hover,
.update-grid article:hover,
.faq-list details:hover {
  border-color: rgba(255, 102, 178, 0.58);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.feature-card {
  min-height: 230px;
  padding: 22px;
}

.feature-card svg {
  width: 34px;
  height: 34px;
  margin-bottom: 22px;
  color: var(--accent);
  transition: transform 0.24s var(--ease), color 0.24s var(--ease);
}

.feature-card:hover svg {
  color: var(--cyan);
  transform: translateY(-2px) scale(1.08);
}

.wide-media {
  margin-top: 28px;
  overflow: hidden;
  border: 1px solid rgba(176, 196, 222, 0.72);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease), border-color 0.28s var(--ease);
}

.wide-media img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  transition: transform 0.55s var(--ease), filter 0.28s var(--ease);
}

.wide-media:hover {
  border-color: rgba(255, 102, 178, 0.58);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.wide-media:hover img {
  filter: saturate(1.08) contrast(1.03);
  transform: scale(1.025);
}

.steps-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 0.82fr);
  gap: 32px;
  align-items: start;
}

.steps-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.steps-list article {
  min-height: 204px;
  padding: 22px;
}

.steps-list span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 30px;
  margin-bottom: 18px;
  border-radius: 999px;
  color: var(--deep);
  background: rgba(255, 102, 178, 0.16);
  font-size: 13px;
  font-weight: 900;
  transition: background 0.22s var(--ease), color 0.22s var(--ease);
}

.steps-list article:hover span {
  color: #fff;
  background: var(--accent);
}

.feature-stack {
  display: grid;
  gap: 16px;
}

.feature-stack article {
  padding: 22px;
}

.update-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  counter-reset: update-item;
}

.update-grid article {
  position: relative;
  min-height: 0;
  display: grid;
  grid-template-columns: 34px minmax(150px, 0.28fr) minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  counter-increment: update-item;
}

.update-grid article::before {
  content: counter(update-item, decimal-leading-zero);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 28px;
  border-radius: 999px;
  color: var(--accent);
  background: rgba(255, 102, 178, 0.12);
  font-size: 12px;
  font-weight: 900;
  transition: background 0.22s var(--ease), color 0.22s var(--ease), transform 0.22s var(--ease);
}

.update-grid article:hover::before {
  color: #fff;
  background: var(--accent);
  transform: scale(1.06);
}

.update-grid h3 {
  font-size: 17px;
  white-space: nowrap;
}

.update-grid p {
  margin: 0;
}

.gallery {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 18px;
  align-items: stretch;
}

.gallery-main {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(176, 196, 222, 0.72);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 30px rgba(42, 52, 72, 0.08);
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease), border-color 0.28s var(--ease);
}

.gallery-main img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: opacity 0.22s var(--ease), transform 0.5s var(--ease), filter 0.28s var(--ease);
}

.gallery-main:hover {
  border-color: rgba(255, 102, 178, 0.58);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.gallery-main:hover img {
  filter: saturate(1.08) contrast(1.03);
  transform: scale(1.025);
}

.gallery-main figcaption {
  min-height: 56px;
  padding: 12px 14px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.gallery-thumbs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.gallery-thumb {
  min-height: 0;
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 8px;
  border: 1px solid rgba(176, 196, 222, 0.72);
  border-radius: 8px;
  color: var(--deep);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 10px 24px rgba(42, 52, 72, 0.07);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease), transform 0.22s var(--ease), background 0.22s var(--ease);
}

.gallery-thumb:hover,
.gallery-thumb:focus-visible,
.gallery-thumb.is-active {
  border-color: rgba(255, 102, 178, 0.72);
  background: #fff;
  box-shadow: 0 14px 28px rgba(255, 102, 178, 0.14);
}

.gallery-thumb:hover,
.gallery-thumb:focus-visible {
  transform: translateY(-1px);
}

.gallery-thumb img {
  width: 112px;
  height: 70px;
  border-radius: 6px;
  object-fit: cover;
  transition: transform 0.28s var(--ease), filter 0.22s var(--ease);
}

.gallery-thumb:hover img,
.gallery-thumb:focus-visible img,
.gallery-thumb.is-active img {
  filter: saturate(1.08) contrast(1.04);
  transform: scale(1.035);
}

.gallery-thumb span {
  min-width: 0;
  color: var(--deep);
  font-size: 14px;
  font-weight: 850;
}

.thumb-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.thumb-label svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  color: var(--accent);
  transition: color 0.22s var(--ease), transform 0.22s var(--ease);
}

.gallery-thumb:hover .thumb-label svg,
.gallery-thumb:focus-visible .thumb-label svg,
.gallery-thumb.is-active .thumb-label svg {
  color: var(--cyan);
  transform: translateY(-1px);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  padding: 0;
}

.faq-list summary {
  position: relative;
  min-height: 60px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 54px 16px 18px;
  color: var(--deep);
  font-weight: 850;
  cursor: pointer;
  list-style: none;
  transition: color 0.22s var(--ease);
}

.faq-list summary > svg {
  width: 19px;
  height: 19px;
  flex: 0 0 auto;
  color: var(--accent);
  transition: color 0.22s var(--ease), transform 0.22s var(--ease);
}

.faq-list summary > span {
  min-width: 0;
}

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

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--accent);
  transform: translateY(-50%);
  transition: background 0.22s var(--ease), color 0.22s var(--ease), border-color 0.22s var(--ease), transform 0.22s var(--ease);
}

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

.faq-list details:hover summary {
  color: var(--accent);
}

.faq-list details:hover summary > svg,
.faq-list details[open] summary > svg {
  color: var(--cyan);
  transform: translateY(-1px);
}

.faq-list details:hover summary::after,
.faq-list details[open] summary::after {
  color: #fff;
  border-color: var(--accent);
  background: var(--accent);
}

.faq-list details p {
  margin: 0;
  padding: 0 18px 18px;
  color: var(--muted);
}

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 20px;
  margin-bottom: 70px;
  padding: 34px;
  border: 1px solid rgba(255, 102, 178, 0.32);
  border-radius: 8px;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(7, 16, 28, 0.98), rgba(30, 39, 55, 0.96)),
    var(--deep);
  box-shadow: var(--shadow);
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease), border-color 0.28s var(--ease);
}

.cta-band:hover {
  border-color: rgba(255, 102, 178, 0.62);
  box-shadow: var(--shadow-hover), 0 0 0 1px rgba(255, 102, 178, 0.18);
  transform: translateY(-3px);
}

.cta-band h2 {
  margin: 0;
  font-size: 30px;
  line-height: 1.25;
  letter-spacing: 0;
}

.cta-band p:not(.eyebrow) {
  max-width: 690px;
  margin: 10px 0 0;
  color: rgba(255, 255, 255, 0.78);
}

.friend-links {
  margin-top: -22px;
  margin-bottom: 46px;
  padding: 34px 28px 32px;
  border: 1px solid rgba(255, 102, 178, 0.24);
  border-radius: 8px;
  color: #fff;
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 102, 178, 0.16), transparent 34%),
    radial-gradient(circle at 18% 100%, rgba(63, 217, 255, 0.12), transparent 28%),
    linear-gradient(135deg, rgba(7, 16, 28, 0.98), rgba(27, 23, 43, 0.96) 54%, rgba(7, 16, 28, 0.98));
  box-shadow: var(--shadow);
}

.friend-links-head {
  text-align: center;
}

.friend-links h2 {
  margin: 0;
  color: rgba(255, 255, 255, 0.94);
  font-size: 30px;
  line-height: 1.2;
  letter-spacing: 0;
}

.friend-links h2::after {
  content: "";
  display: block;
  width: 72px;
  height: 3px;
  margin: 12px auto 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), #ffe37d);
  box-shadow: 0 0 18px rgba(255, 102, 178, 0.3);
}

.friend-link-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 26px;
}

.friend-link-list a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0 18px;
  border: 1px solid rgba(63, 217, 255, 0.28);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04), 0 10px 24px rgba(0, 0, 0, 0.12);
  font-weight: 800;
  white-space: nowrap;
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), background 0.22s var(--ease), box-shadow 0.22s var(--ease), color 0.22s var(--ease);
}

.friend-link-list a:hover,
.friend-link-list a:focus-visible {
  color: #fff;
  border-color: rgba(255, 102, 178, 0.72);
  background: rgba(255, 102, 178, 0.14);
  box-shadow: 0 0 0 4px rgba(255, 102, 178, 0.09), 0 16px 32px rgba(0, 0, 0, 0.18);
  transform: translateY(-2px);
}

.link-dot {
  width: 11px;
  height: 11px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: radial-gradient(circle, #ffffff 0 18%, #87f5ff 24% 58%, var(--accent) 100%);
  box-shadow: 0 0 12px rgba(63, 217, 255, 0.54);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer strong {
  color: var(--deep);
}

.site-footer p {
  margin: 4px 0 0;
}

.site-footer a {
  color: var(--deep);
  font-weight: 800;
}

:focus-visible {
  outline: 3px solid rgba(255, 102, 178, 0.48);
  outline-offset: 3px;
}

@media (max-width: 1040px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: absolute;
    left: 16px;
    right: 16px;
    top: calc(var(--header-height) - 1px);
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow);
  }

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

  .nav-menu a {
    justify-content: flex-start;
  }

  .nav-menu .nav-cta {
    margin-left: 0;
    justify-content: center;
  }

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

  .gallery {
    grid-template-columns: minmax(0, 1fr) 280px;
  }

  .gallery-thumb {
    grid-template-columns: 92px minmax(0, 1fr);
  }

  .gallery-thumb img {
    width: 92px;
    height: 60px;
  }
}

@media (max-width: 820px) {
  :root {
    --header-height: 66px;
  }

  .hero {
    min-height: 76vh;
  }

  .hero-content {
    padding: 74px 0 46px;
  }

  .hero h1 {
    font-size: 38px;
  }

  .hero-copy {
    font-size: 16px;
  }

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

  .section {
    padding: 66px 0;
  }

  .section-head h2 {
    font-size: 28px;
  }

  .section-head p:not(.eyebrow) {
    font-size: 16px;
  }

  .media-text,
  .media-text.reverse,
  .steps-layout,
  .gallery {
    grid-template-columns: 1fr;
  }

  .media-text.reverse .media-frame {
    order: 0;
  }

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

  .steps-list {
    grid-template-columns: 1fr;
  }

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

  .gallery-thumb {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .gallery-thumb img {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
  }

  .cta-band {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
  }

  .cta-band h2 {
    font-size: 25px;
  }

  .friend-links {
    padding: 28px 18px;
  }

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

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 560px) {
  .brand-text {
    max-width: 178px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(7, 16, 28, 0.95), rgba(7, 16, 28, 0.72)),
      linear-gradient(0deg, rgba(7, 16, 28, 0.64), transparent 42%);
  }

  .hero h1 {
    font-size: 31px;
  }

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

  .hero-facts {
    grid-template-columns: 1fr;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .update-grid article {
    grid-template-columns: 34px 1fr;
    align-items: start;
  }

  .update-grid h3 {
    white-space: normal;
  }

  .update-grid p {
    grid-column: 2;
  }

  .gallery-thumbs {
    grid-template-columns: 1fr;
  }

  .feature-card,
  .steps-list article,
  .feature-stack article,
  .update-grid article {
    min-height: auto;
  }

  .media-frame figcaption,
  .gallery-main figcaption {
    font-size: 13px;
  }

  .friend-links h2 {
    font-size: 25px;
  }

  .friend-link-list {
    display: grid;
    grid-template-columns: 1fr;
  }

  .friend-link-list a {
    width: 100%;
    justify-content: center;
    white-space: normal;
    text-align: center;
    line-height: 1.45;
    padding: 10px 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}