:root {
  --ink: #12100d;
  --muted: #70675e;
  --paper: #fbf7ef;
  --porcelain: #fffdf8;
  --line: rgba(23, 20, 17, 0.12);
  --night: #0d0e0c;
  --night-soft: #181714;
  --wechat: #07c160;
  --coral: #f05a48;
  --brass: #a98552;
  --sage: #7f9a83;
  --cyan: var(--wechat);
  --tomato: var(--coral);
  --gold: var(--brass);
  --radius: 8px;
  --shadow: 0 24px 70px rgba(23, 20, 17, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

[id] {
  scroll-margin-top: 88px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

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

[hidden] {
  display: none !important;
}

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

.nowrap {
  white-space: nowrap;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(20px, 4vw, 64px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(13, 14, 12, 0.18);
  color: #fff;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition:
    background 180ms ease,
    color 180ms ease,
    border-color 180ms ease;
}

.site-header.is-solid {
  background: rgba(251, 247, 239, 0.92);
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 176px;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 700;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.05;
}

.brand small {
  margin-top: 4px;
  color: currentColor;
  font-size: 11px;
  opacity: 0.68;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 34px);
  font-size: 14px;
}

.nav a {
  opacity: 0.78;
}

.nav a:hover {
  opacity: 1;
}

.nav-cta,
.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
}

.nav-cta {
  border: 1px solid currentColor;
  padding: 0 18px;
  font-size: 13px;
}

.button {
  padding: 0 22px;
  transition:
    transform 180ms ease,
    background 180ms ease,
    color 180ms ease;
}

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

.button-primary {
  background: var(--wechat);
  color: #fff;
}

.button-ghost {
  border: 1px solid rgba(255, 255, 255, 0.58);
  color: #fff;
}

.button-light {
  background: #fff;
  color: var(--ink);
}

.section {
  padding: clamp(74px, 10vw, 132px) clamp(20px, 4vw, 64px);
}

.section-dark {
  background: var(--night);
  color: #fff;
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 430px);
  align-items: center;
  gap: clamp(32px, 5vw, 76px);
  padding: 116px clamp(20px, 4vw, 64px) clamp(28px, 5vw, 64px);
}

.hero-bg,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-bg {
  background:
    linear-gradient(90deg, rgba(8, 8, 7, 0.9), rgba(8, 8, 7, 0.38) 58%, rgba(8, 8, 7, 0.82)),
    url("assets/images/hero-cafe.webp") center / cover;
  transform: scale(1.02);
}

.hero-overlay {
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.18), rgba(0, 0, 0, 0.82));
}

.hero-content,
.hero-proof {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 880px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--tomato);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-dark .eyebrow {
  color: var(--wechat);
}

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

h1 {
  max-width: 960px;
  margin-bottom: 24px;
  font-size: clamp(58px, 6.3vw, 90px);
  line-height: 1.04;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(34px, 5vw, 68px);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.18;
  letter-spacing: 0;
}

p {
  line-height: 1.75;
}

.hero-copy {
  max-width: 680px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(17px, 2vw, 22px);
}

.hero-actions,
.demo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.signal-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 44px;
}

.signal-row span {
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  padding: 8px 12px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 13px;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.hero-proof {
  align-self: center;
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  padding: 16px;
  background: rgba(12, 13, 12, 0.72);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.38);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
}

.hero-proof-header {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}

.hero-proof-header p {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 14px;
  line-height: 1.55;
}

.live-dot {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.live-dot span {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--wechat);
  box-shadow: 0 0 0 8px rgba(7, 193, 96, 0.16);
}

.hero-proof-header .live-dot {
  margin-bottom: 0;
}

.hero-phone {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 26px;
  background: #0b0b0a;
}

.hero-phone video {
  width: 100%;
  height: min(52vh, 480px);
  object-fit: cover;
  object-position: top;
  background: #000;
}

.hero-proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 10px;
}

.hero-proof-grid img {
  width: 100%;
  aspect-ratio: 1220 / 2656;
  border-radius: 6px;
  object-fit: cover;
  object-position: top;
  opacity: 0.92;
}

.hero-contact-card {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  margin-top: 10px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  padding: 10px;
  background: rgba(255, 255, 255, 0.08);
}

.hero-contact-card img {
  width: 62px;
  height: 78px;
  border-radius: 6px;
  object-fit: cover;
  object-position: center;
}

.hero-contact-card strong,
.hero-contact-card small {
  display: block;
}

.hero-contact-card strong {
  color: #fff;
  font-size: 15px;
}

.hero-contact-card small {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
}

.intro-band {
  padding: 34px clamp(20px, 4vw, 64px);
  background: var(--ink);
  color: #fff;
}

.intro-band p {
  max-width: 1180px;
  margin: 0 auto;
  font-size: clamp(18px, 2.2vw, 30px);
  line-height: 1.5;
}

.section-heading {
  max-width: 980px;
  margin-bottom: 48px;
}

.section-heading p:not(.eyebrow) {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}

.section-heading.compact {
  max-width: 860px;
}

.audience {
  background: var(--porcelain);
}

.audience-stage {
  display: grid;
  grid-template-columns: minmax(220px, 0.36fr) minmax(0, 1fr);
  gap: 18px;
  align-items: stretch;
}

.audience-tabs {
  display: grid;
  gap: 10px;
}

.audience-tabs button {
  display: flex;
  width: 100%;
  min-height: 72px;
  align-items: center;
  justify-content: flex-start;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 20px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  text-align: left;
  transition:
    background 180ms ease,
    color 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.audience-tabs button:hover {
  transform: translateY(-1px);
}

.audience-tabs button[aria-selected="true"] {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
}

.audience-tabs span {
  color: var(--gold);
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 13px;
}

.audience-tabs button[aria-selected="true"] span {
  color: var(--wechat);
}

.audience-panels {
  min-width: 0;
}

.audience-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(28px, 5vw, 58px);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(251, 247, 239, 0.9)),
    url("assets/images/editorial-portrait.webp") right center / auto 100% no-repeat;
  box-shadow: 0 24px 70px rgba(23, 20, 17, 0.1);
  animation: panelFadeIn 380ms var(--motion-ease) both;
}

@keyframes panelFadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.audience-panel h3 {
  max-width: 680px;
  font-size: clamp(28px, 4vw, 52px);
  line-height: 1.05;
}

.audience-panel p:not(.case-label),
.audience-panel li {
  max-width: 640px;
  color: var(--muted);
  font-size: 17px;
}

.case-label {
  margin-bottom: 18px;
  color: var(--coral);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.audience-panel ul {
  display: grid;
  gap: 8px;
  margin: 28px 0 30px;
  padding-left: 20px;
}

.audience-panel strong {
  display: inline-flex;
  border-top: 1px solid var(--line);
  padding-top: 16px;
  color: var(--ink);
  font-size: 18px;
}

.audience-note {
  margin-top: 18px;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
}

.audience-note summary {
  padding: 22px 26px;
  color: var(--wechat);
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

.audience-note summary::-webkit-details-marker {
  display: none;
}

.audience-note summary::after {
  content: "+";
  float: right;
  font-weight: 400;
  transition: transform 220ms ease;
}

.audience-note[open] summary::after {
  content: "−";
}

.audience-note span {
  display: block;
  padding: 0 26px 22px;
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.7;
}

.identity-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 28px;
  align-items: stretch;
}

.profile-block {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1fr);
  gap: 28px;
  align-items: end;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--porcelain);
  box-shadow: var(--shadow);
}

.profile-block img {
  width: 100%;
  height: 100%;
  min-height: 560px;
  object-fit: cover;
}

.profile-block div {
  padding: 34px 34px 38px 0;
}

.kicker {
  margin-bottom: 12px;
  color: var(--tomato);
  font-weight: 800;
}

.profile-block p:last-child,
.persona-item p,
.ops-card p {
  color: var(--muted);
}

.persona-list {
  display: grid;
  gap: 14px;
}

.persona-item,
.ops-card,
.expression-strip article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 250, 243, 0.68);
}

.persona-item {
  padding: 26px;
}

.persona-item span {
  display: block;
  margin-bottom: 42px;
  color: var(--gold);
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
}

.wechat-proof {
  margin-top: clamp(46px, 7vw, 92px);
  border-top: 1px solid rgba(23, 20, 17, 0.14);
  padding-top: clamp(38px, 6vw, 72px);
}

.proof-heading {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1fr);
  gap: clamp(20px, 4vw, 64px);
  align-items: end;
  margin-bottom: 30px;
}

.proof-heading h3 {
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1.04;
}

.proof-heading p:last-child {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 17px;
}

.proof-showcase {
  display: grid;
  grid-template-columns: minmax(300px, 0.78fr) minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

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

.video-phone {
  overflow: hidden;
  border: 1px solid rgba(23, 20, 17, 0.15);
  border-radius: 26px;
  background: #111;
  box-shadow: 0 24px 70px rgba(23, 20, 17, 0.2);
}

.video-phone video {
  width: 100%;
  aspect-ratio: 592 / 1280;
  object-fit: cover;
  background: #000;
}

.video-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  background: #151515;
  color: #fff;
  font-size: 12px;
}

.video-topline span {
  color: rgba(255, 255, 255, 0.54);
}

.video-topline strong {
  font-size: 13px;
}

.moment-proof-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.moment-proof-grid figure {
  position: relative;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(23, 20, 17, 0.12);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 18px 46px rgba(23, 20, 17, 0.12);
}

.moment-proof-grid img {
  width: 100%;
  aspect-ratio: 1220 / 2656;
  object-fit: cover;
  object-position: top;
}

.moment-proof-grid figcaption {
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 10px;
  border-radius: 999px;
  padding: 7px 10px;
  background: rgba(255, 250, 243, 0.86);
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.moments {
  background: #f2ece2;
}

.wechat-layout {
  display: grid;
  grid-template-columns: minmax(280px, 390px) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}

.phone-shell {
  width: min(100%, 390px);
  margin-inline: auto;
  overflow: hidden;
  border: 10px solid #141414;
  border-radius: 34px;
  background: #f7f7f7;
  color: #171717;
  box-shadow: 0 30px 90px rgba(23, 20, 17, 0.34);
}

.phone-status,
.phone-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  font-size: 12px;
}

.phone-title {
  justify-content: center;
  border-bottom: 1px solid #dedede;
  font-size: 17px;
  font-weight: 700;
}

.timeline {
  max-height: 560px;
  overflow: hidden;
  padding: 18px 14px 28px;
}

.month {
  float: left;
  width: 50px;
  padding-top: 5px;
  font-size: 17px;
  font-weight: 900;
  line-height: 1.18;
}

.post {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 10px;
  min-height: 84px;
  margin-left: 60px;
  margin-bottom: 14px;
}

.post img {
  width: 72px;
  height: 72px;
  object-fit: cover;
}

.post p {
  margin: 0;
  font-size: 14px;
  line-height: 1.42;
}

.ops-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.ops-card {
  min-height: 320px;
  padding: 28px;
  background: #fffaf3;
}

.ops-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  margin-bottom: 24px;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: 320px;
  gap: 14px;
}

.gallery figure {
  position: relative;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: #ddd;
}

.gallery-large {
  grid-column: span 2;
  grid-row: span 2;
}

.gallery-wide {
  grid-column: span 2;
}

.gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms ease;
}

.gallery figure:hover img {
  transform: scale(1.04);
}

.gallery figcaption {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(16, 18, 22, 0.6);
  color: #fff;
  font-size: 13px;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.library {
  background: var(--porcelain);
}

.library-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.8fr) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 72px);
  align-items: stretch;
  margin-bottom: 28px;
}

.library-feature {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #10100e;
  box-shadow: 0 28px 80px rgba(23, 20, 17, 0.18);
}

.library-feature video {
  width: 100%;
  max-height: 720px;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: center;
  background: #000;
}

.library-feature-caption {
  padding: 18px 20px 22px;
  color: #fff;
}

.library-feature-caption span,
.clip-row span {
  display: block;
  margin-bottom: 8px;
  color: var(--wechat);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.library-feature-caption strong {
  display: block;
  font-size: 20px;
  line-height: 1.35;
}

.library-system {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  align-content: stretch;
}

.library-system article {
  display: flex;
  min-height: 340px;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  background: #fffaf3;
}

.library-system span {
  color: var(--gold);
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 13px;
}

.library-system p {
  margin-bottom: 0;
  color: var(--muted);
}

.asset-wall {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  grid-auto-rows: 210px;
  gap: 12px;
}

.asset-wall figure {
  position: relative;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: #ddd;
}

.asset-wall .asset-large {
  grid-column: span 2;
  grid-row: span 2;
}

.asset-wall .asset-wide {
  grid-column: span 2;
}

.asset-wall .asset-tall {
  grid-row: span 2;
}

.asset-wall img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms ease;
}

.asset-wall figure:hover img {
  transform: scale(1.04);
}

.asset-wall figcaption {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 12px;
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(16, 18, 22, 0.62);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.clip-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.clip-row article {
  display: grid;
  grid-template-columns: minmax(180px, 0.42fr) minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fffaf3;
}

.clip-row video {
  width: 100%;
  height: 100%;
  min-height: 300px;
  object-fit: cover;
  background: #000;
}

.clip-row div {
  padding: 24px 24px 24px 0;
}

.clip-row p {
  margin-bottom: 0;
  color: var(--muted);
}

.engine {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.92fr);
  gap: clamp(30px, 5vw, 72px);
  align-items: center;
}

.engine-media {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--night-soft);
}

.engine-media video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.engine-copy p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.74);
  font-size: 18px;
}

.engine-steps {
  display: grid;
  gap: 12px;
  margin-top: 34px;
}

.engine-steps div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 14px;
}

.engine-steps span {
  color: rgba(255, 255, 255, 0.58);
  text-align: right;
}

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

.expression-strip article {
  overflow: hidden;
  background: var(--porcelain);
}

.expression-strip img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: 50% 18%;
}

.expression-strip h3,
.expression-strip p {
  padding-inline: 22px;
}

.expression-strip h3 {
  margin-top: 22px;
}

.expression-strip p {
  padding-bottom: 24px;
  color: var(--muted);
}

.idol {
  display: grid;
  grid-template-columns: minmax(320px, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(30px, 5vw, 72px);
  align-items: center;
  background: linear-gradient(135deg, #0d0e0c, #171511 58%, #0f1511);
}

.idol-copy p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.74);
  font-size: 18px;
}

.idol-copy h2 {
  font-size: clamp(38px, 4.2vw, 58px);
}

.idol-points {
  display: grid;
  gap: 12px;
  margin-top: 34px;
}

.idol-points div {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  padding-top: 14px;
}

.idol-points strong {
  color: #fff;
}

.idol-points span {
  color: rgba(255, 255, 255, 0.6);
}

.idol-video {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: #050607;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.34);
}

.idol-video iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
  background: #000;
}

.idol-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  color: #fff;
  font-size: 13px;
}

.idol-caption span {
  color: rgba(255, 255, 255, 0.52);
}

.idol-caption a {
  color: var(--wechat);
  font-weight: 800;
}

.demo {
  padding-top: 48px;
}

.demo-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 430px);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
  border-radius: var(--radius);
  padding: clamp(42px, 7vw, 92px);
  background:
    linear-gradient(135deg, rgba(18, 16, 13, 0.94), rgba(7, 193, 96, 0.7)),
    url("assets/images/editorial-portrait.webp") center / cover;
  color: #fff;
}

.demo-copy h2,
.demo-copy p {
  max-width: 820px;
}

.demo-copy p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.86);
  font-size: 18px;
}

.experience-card {
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius);
  padding: 18px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--ink);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.24);
}

.qr-frame {
  overflow: hidden;
  border: 1px solid rgba(18, 16, 13, 0.12);
  border-radius: var(--radius);
  background: #fff;
}

.qr-frame img {
  width: 100%;
  aspect-ratio: 928 / 1380;
  object-fit: cover;
}

.experience-copy {
  padding: 18px 4px 0;
}

.experience-copy span {
  display: block;
  margin-bottom: 8px;
  color: var(--wechat);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.experience-copy h3 {
  margin-bottom: 8px;
  font-size: 26px;
}

.experience-copy p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.62;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(20px, 4vw, 64px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.footer p {
  margin: 0;
}

@media (max-width: 1080px) {
  .hero,
  .audience-stage,
  .identity-grid,
  .wechat-layout,
  .engine,
  .idol,
  .demo-inner,
  .library-layout {
    grid-template-columns: 1fr;
  }

  .hero-proof {
    max-width: 520px;
  }

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

  .ops-panel {
    grid-template-columns: 1fr;
  }

  .proof-heading,
  .proof-showcase {
    grid-template-columns: 1fr;
  }

  .ops-card {
    min-height: auto;
  }

  .ops-icon {
    margin-bottom: 34px;
  }

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

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

  .library-system,
  .clip-row,
  .clip-row article {
    grid-template-columns: 1fr;
  }

  .clip-row div {
    padding: 0 24px 24px;
  }

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

  .audience-tabs button {
    min-height: 64px;
    justify-content: center;
    padding-inline: 12px;
  }
}

@media (max-width: 760px) {
  .site-header {
    padding: 12px 16px;
  }

  .brand {
    min-width: auto;
  }

  .brand small {
    display: none;
  }

  .nav {
    display: none;
  }

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

  .nav-cta {
    min-height: 36px;
    padding-inline: 13px;
  }

  .hero {
    min-height: auto;
    padding: 92px 16px 32px;
  }

  h1 {
    font-size: clamp(42px, 12vw, 56px);
    line-height: 1.04;
  }

  h2 {
    font-size: clamp(30px, 10vw, 46px);
  }

  .section {
    padding: 68px 16px;
  }

  .hero-proof {
    max-width: 420px;
    padding: 12px;
  }

  .hero-phone video {
    height: min(58vh, 430px);
  }

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

  .hero-contact-card {
    grid-template-columns: 52px minmax(0, 1fr);
  }

  .hero-contact-card img {
    width: 52px;
    height: 68px;
  }

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

  .audience-tabs button {
    min-height: 58px;
  }

  .audience-panel {
    min-height: auto;
    background: #fff;
  }

  .profile-block {
    grid-template-columns: 1fr;
  }

  .profile-block img {
    min-height: 420px;
  }

  .profile-block div {
    padding: 0 22px 28px;
  }

  .idol-points div {
    grid-template-columns: 1fr;
  }

  .gallery {
    grid-template-columns: 1fr;
    grid-auto-rows: 260px;
  }

  .gallery-large,
  .gallery-wide {
    grid-column: span 1;
    grid-row: span 1;
  }

  .expression-strip {
    grid-template-columns: 1fr;
  }

  .proof-videos {
    grid-template-columns: 1fr;
  }

  .library-system {
    grid-template-columns: 1fr;
  }

  .library-system article {
    min-height: 240px;
  }

  .asset-wall {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-rows: 230px;
  }

  .asset-wall .asset-large,
  .asset-wall .asset-wide,
  .asset-wall .asset-tall {
    grid-column: span 1;
    grid-row: span 1;
  }

  .clip-row video {
    min-height: 240px;
  }

  .footer {
    display: block;
  }

  .footer p + p {
    margin-top: 8px;
  }
}

/* Open Design interaction layer: Framer motion + Apple chapter pacing. */
:root {
  --od-black: #050607;
  --od-black-2: #0a0b0a;
  --od-panel: rgba(255, 255, 255, 0.075);
  --od-panel-strong: rgba(255, 255, 255, 0.12);
  --od-line: rgba(255, 255, 255, 0.14);
  --od-soft-line: rgba(18, 16, 13, 0.09);
  --od-text: #f7fff9;
  --od-muted: rgba(247, 255, 249, 0.66);
  --od-shadow: 0 28px 90px rgba(0, 0, 0, 0.32);
  --od-ring: 0 0 0 1px rgba(7, 193, 96, 0.18);
  --motion-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html {
  background: var(--od-black);
}

body {
  position: relative;
  overflow-x: hidden;
  background:
    linear-gradient(180deg, var(--od-black) 0, var(--od-black) 36vh, var(--paper) 62vh),
    var(--paper);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.18;
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(115deg, rgba(7, 193, 96, 0.08), transparent 30%),
    linear-gradient(245deg, rgba(240, 90, 72, 0.08), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 58%);
}

::selection {
  background: rgba(7, 193, 96, 0.28);
}

.page-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  width: 100%;
  height: 2px;
  background: var(--wechat);
  transform: scaleX(var(--page-progress, 0));
  transform-origin: left center;
}

.site-header {
  top: 12px;
  left: 50%;
  right: auto;
  width: min(calc(100% - clamp(24px, 4vw, 56px)), 1320px);
  border: 1px solid var(--od-line);
  border-radius: 999px;
  padding: 10px 14px 10px 16px;
  background: rgba(5, 6, 7, 0.64);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 18px 46px rgba(0, 0, 0, 0.26);
  transform: translateX(-50%);
}

.site-header.is-solid {
  border-color: rgba(255, 255, 255, 0.17);
  background: rgba(5, 6, 7, 0.84);
  color: #fff;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.14),
    0 18px 56px rgba(0, 0, 0, 0.32);
}

.brand-mark {
  border-color: rgba(255, 255, 255, 0.22);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.04)),
    rgba(7, 193, 96, 0.08);
  box-shadow: inset 0 0 0 1px rgba(7, 193, 96, 0.18);
}

.nav a {
  position: relative;
  padding-block: 8px;
  transition:
    color 180ms ease,
    opacity 180ms ease;
}

.nav a::after {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 1px;
  content: "";
  background: currentColor;
  opacity: 0.72;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 220ms var(--motion-ease);
}

.nav a:hover::after,
.nav a.is-active::after {
  transform: scaleX(1);
}

.nav a.is-active {
  opacity: 1;
  color: var(--wechat);
}

.nav-cta,
.button {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16);
  transition:
    transform 220ms var(--motion-ease),
    box-shadow 220ms var(--motion-ease),
    border-color 220ms ease,
    background 220ms ease;
}

.nav-cta:hover,
.button:hover {
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 14px 34px rgba(0, 0, 0, 0.22);
}

.button-primary {
  background: linear-gradient(135deg, var(--wechat), #15d0ce);
  color: #04120c;
}

.button-ghost,
.button-light {
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.section-heading h2,
.hero h1,
.demo-copy h2 {
  text-wrap: balance;
}

.section-heading p:not(.eyebrow),
.hero-copy,
.engine-copy p:not(.eyebrow),
.idol-copy p:not(.eyebrow),
.demo-copy p:not(.eyebrow) {
  text-wrap: pretty;
}

.hero {
  isolation: isolate;
}

.hero::before,
.engine::before,
.idol::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.024) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.72), transparent 74%);
  opacity: 0.15;
}

.hero-bg {
  filter: saturate(1.08) contrast(1.06);
  animation: heroDrift 18s var(--motion-ease) infinite alternate;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.88), rgba(0, 0, 0, 0.24) 56%, rgba(0, 0, 0, 0.76)),
    linear-gradient(180deg, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.92));
}

.hero h1 {
  font-weight: 900;
  text-shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
}

.hero-copy {
  color: rgba(255, 255, 255, 0.78);
}

.signal-row span {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.075);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.intro-band {
  border-block: 1px solid rgba(255, 255, 255, 0.1);
  background:
    linear-gradient(90deg, rgba(7, 193, 96, 0.12), transparent 28%),
    var(--od-black);
}

.audience,
.library,
.expressions {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.42), rgba(255, 255, 255, 0)),
    var(--porcelain);
}

.moments {
  background:
    linear-gradient(180deg, #f4ede3, #fffaf3 46%, #f2ece2);
}

.section-dark {
  background: var(--od-black);
}

.engine,
.idol {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(125deg, #050607, #12110e 58%, #06140f),
    var(--od-black);
}

.hero-proof,
.audience-panel,
.profile-block,
.persona-item,
.ops-card,
.phone-shell,
.video-phone,
.moment-proof-grid figure,
.gallery figure,
.library-feature,
.library-system article,
.asset-wall figure,
.clip-row article,
.engine-media,
.expression-strip article,
.idol-video,
.experience-card {
  transition:
    transform 260ms var(--motion-ease),
    box-shadow 260ms var(--motion-ease),
    border-color 260ms ease,
    background 260ms ease,
    filter 260ms ease;
}

.hero-proof,
.video-phone,
.library-feature,
.idol-video,
.experience-card,
.engine-media {
  border-color: rgba(255, 255, 255, 0.16);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.035)),
    rgba(5, 6, 7, 0.76);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    var(--od-shadow);
}

.audience-panel,
.profile-block,
.persona-item,
.ops-card,
.moment-proof-grid figure,
.library-system article,
.clip-row article,
.expression-strip article {
  border-color: var(--od-soft-line);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.86) inset,
    0 24px 68px rgba(23, 20, 17, 0.1);
}

.profile-block:hover,
.persona-item:hover,
.ops-card:hover,
.moment-proof-grid figure:hover,
.gallery figure:hover,
.library-system article:hover,
.asset-wall figure:hover,
.clip-row article:hover,
.expression-strip article:hover,
.experience-card:hover,
.hero-proof:hover,
.video-phone:hover,
.idol-video:hover {
  border-color: rgba(7, 193, 96, 0.28);
  box-shadow:
    var(--od-ring),
    0 32px 88px rgba(23, 20, 17, 0.18);
}

.hero-proof:hover,
.video-phone:hover,
.idol-video:hover {
  box-shadow:
    var(--od-ring),
    0 34px 92px rgba(0, 0, 0, 0.42);
}

.audience-tabs button {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 250, 243, 0.84)),
    #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.84);
}

.audience-tabs button::before {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(90deg, rgba(7, 193, 96, 0.12), transparent);
  opacity: 0;
  transition: opacity 220ms ease;
}

.audience-tabs button:hover::before,
.audience-tabs button[aria-selected="true"]::before {
  opacity: 1;
}

.audience-tabs button[aria-selected="true"] {
  border-color: rgba(255, 255, 255, 0.14);
  background: var(--od-black);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 18px 46px rgba(0, 0, 0, 0.18);
}

.hero-proof-grid img,
.gallery img,
.asset-wall img,
.expression-strip img,
.library-feature video,
.clip-row video,
.engine-media video {
  transform-origin: center;
  transition:
    transform 720ms var(--motion-ease),
    filter 320ms ease;
}

.gallery figure:hover img,
.asset-wall figure:hover img,
.expression-strip article:hover img,
.library-feature:hover video,
.clip-row article:hover video,
.engine-media:hover video {
  filter: saturate(1.08) contrast(1.03);
  transform: scale(1.045);
}

.gallery figcaption,
.asset-wall figcaption,
.moment-proof-grid figcaption,
.idol-caption,
.video-topline,
.library-feature-caption {
  position: relative;
  z-index: 2;
}

[data-tilt] {
  position: relative;
  transform: perspective(1200px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg)) translate3d(0, var(--lift, 0px), 0);
  transform-style: preserve-3d;
  will-change: transform;
}

[data-tilt]::after {
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: inherit;
  pointer-events: none;
  content: "";
  background: radial-gradient(
    320px circle at var(--spot-x, 50%) var(--spot-y, 50%),
    rgba(255, 255, 255, 0.18),
    rgba(255, 255, 255, 0.08) 22%,
    transparent 58%
  );
  opacity: var(--spot-o, 0);
  transition: opacity 220ms ease;
}

.is-reveal {
  opacity: 0;
  scale: 0.985;
  translate: 0 26px;
  transition:
    opacity 760ms var(--motion-ease),
    scale 760ms var(--motion-ease),
    translate 760ms var(--motion-ease);
}

.is-reveal.is-visible {
  opacity: 1;
  scale: 1;
  translate: 0 0;
}

.live-dot span {
  animation: livePulse 1.8s ease-in-out infinite;
}

@keyframes livePulse {
  0%,
  100% {
    box-shadow: 0 0 0 6px rgba(7, 193, 96, 0.12);
  }

  50% {
    box-shadow: 0 0 0 13px rgba(7, 193, 96, 0.02);
  }
}

@keyframes heroDrift {
  from {
    transform: scale(1.025) translate3d(0, 0, 0);
  }

  to {
    transform: scale(1.065) translate3d(-1.5%, -1%, 0);
  }
}

@media (max-width: 1080px) {
  .site-header {
    width: calc(100% - 28px);
  }
}

@media (max-width: 760px) {
  .site-header {
    top: 8px;
    width: calc(100% - 20px);
    border-radius: 24px;
    padding: 10px 12px;
  }

  .button-primary,
  .button-ghost,
  .button-light {
    width: 100%;
  }

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

  .hero::before,
  .engine::before,
  .idol::before {
    background-size: 56px 56px;
  }
}

/* Typography system: Inter for Latin, Noto Sans SC for Chinese, editorial serif for quotes. */
:root {
  --font-ui: Inter, "Noto Sans SC", "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", sans-serif;
  --font-cn-display: Inter, "Noto Sans SC", "SF Pro Display", "Avenir Next", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --font-latin-display: Inter, "Avenir Next Condensed", "Avenir Next", "SF Pro Display", sans-serif;
  --font-editorial: "Noto Serif CJK SC", "Songti SC", Georgia, serif;
  --font-code: "SF Mono", "Azeret Mono", ui-monospace, Menlo, Consolas, monospace;
}

body {
  font-family: var(--font-ui);
  font-weight: 400;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
.brand strong,
.nav,
.nav-cta,
.button,
.audience-tabs button,
.audience-panel strong,
.experience-copy h3 {
  font-family: var(--font-cn-display);
  letter-spacing: 0;
}

h1,
h2 {
  font-weight: 880;
}

h3 {
  font-weight: 760;
}

.display-title {
  max-width: 1040px;
  margin-bottom: 26px;
  font-size: 88px;
  font-weight: 900;
  line-height: 0.98;
}

.title-name {
  font-weight: 900;
}

.title-mark {
  color: rgba(255, 255, 255, 0.74);
  font-weight: 680;
}

.latin-word {
  display: inline-block;
  margin-right: 0.16em;
  background: linear-gradient(135deg, #ffffff 0%, #dffff5 34%, #5bf0c8 68%, #ffffff 100%);
  color: transparent;
  font-family: var(--font-latin-display);
  font-size: 1.04em;
  font-weight: 900;
  line-height: 0.86;
  -webkit-background-clip: text;
  background-clip: text;
}

h2 {
  font-size: 62px;
  line-height: 1.04;
}

.audience-panel h3 {
  font-size: 50px;
  line-height: 1.06;
}

.idol-copy h2 {
  font-size: 56px;
}

.section-heading h2 {
  position: relative;
}

.hero-copy {
  font-size: 21px;
  font-weight: 400;
}

.intro-band p {
  font-family: var(--font-editorial);
  font-weight: 500;
}

.eyebrow,
.case-label,
.brand small,
.live-dot,
.video-topline,
.library-feature-caption span,
.clip-row span,
.experience-copy span,
.idol-caption span,
.persona-item span,
.library-system span,
.month {
  font-family: var(--font-code);
  letter-spacing: 0;
}

.eyebrow,
.case-label,
.library-feature-caption span,
.clip-row span,
.experience-copy span {
  font-size: 12px;
  font-weight: 800;
}

.brand strong {
  font-family: var(--font-latin-display);
  font-size: 16px;
  font-weight: 850;
}

.brand small {
  font-size: 11px;
}

.nav,
.nav-cta,
.button {
  font-weight: 760;
}

.profile-block p:last-child,
.persona-item p,
.ops-card p,
.library-system p,
.clip-row p,
.experience-copy p,
.audience-panel p:not(.case-label),
.audience-panel li {
  font-weight: 430;
}

@media (max-width: 1080px) {
  .display-title {
    font-size: 72px;
  }

  h2 {
    font-size: 52px;
  }

  .audience-panel h3,
  .idol-copy h2 {
    font-size: 42px;
  }
}

@media (max-width: 760px) {
  .display-title {
    font-size: 48px;
    line-height: 1;
  }

  h2,
  .idol-copy h2 {
    font-size: 36px;
    line-height: 1.08;
  }

  .audience-panel h3 {
    font-size: 30px;
  }

  .hero-copy {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }

  .is-reveal {
    opacity: 1;
    scale: 1;
    translate: 0 0;
  }

  [data-tilt] {
    transform: none !important;
  }
}

/* Focus styles for keyboard navigation */
:focus-visible {
  outline: 2px solid var(--wechat);
  outline-offset: 3px;
  border-radius: 4px;
}

.button:focus-visible,
.nav-cta:focus-visible {
  outline-offset: 4px;
  box-shadow:
    0 0 0 4px rgba(7, 193, 96, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.16);
}

/* Mobile hamburger menu */
.nav-toggle {
  display: none;
}

@media (max-width: 760px) {
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.08);
    cursor: pointer;
    position: relative;
  }

  .nav-toggle span,
  .nav-toggle span::before,
  .nav-toggle span::after {
    display: block;
    width: 16px;
    height: 1.5px;
    background: currentColor;
    border-radius: 1px;
    transition: transform 220ms var(--motion-ease), opacity 220ms ease;
  }

  .nav-toggle span::before,
  .nav-toggle span::after {
    content: "";
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }

  .nav-toggle span::before {
    top: 11px;
  }

  .nav-toggle span {
    opacity: 0;
  }

  .nav-toggle span::after {
    bottom: 11px;
  }

  .nav-toggle[aria-expanded="true"] span::before {
    top: 50%;
    transform: translateX(-50%) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span::after {
    bottom: 50%;
    transform: translateX(-50%) rotate(-45deg);
  }

  .nav {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 8px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 16px;
    background: rgba(5, 6, 7, 0.92);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
  }

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

  .nav a {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 15px;
  }

  .nav a:hover {
    background: rgba(255, 255, 255, 0.08);
  }

  .site-header {
    position: fixed;
    top: 8px;
    left: 8px;
    right: 8px;
    width: auto;
    transform: none;
    border-radius: 24px;
    padding: 10px 12px;
  }
}