:root {
  --cyan: #00d6c6;
  --cyan-dark: #009f96;
  --ink: #0d0f12;
  --graphite: #171b1f;
  --muted: #667079;
  --line: #e7eaee;
  --paper: #f5f6f8;
  --white: #ffffff;
  --radius: 22px;
  --shadow: 0 24px 80px rgba(13, 15, 18, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

.site-nav {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 clamp(20px, 5vw, 72px);
  color: var(--white);
  transition:
    background 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease;
}

.site-nav.is-scrolled {
  color: var(--ink);
  background: rgba(245, 246, 248, 0.92);
  box-shadow: 0 1px 0 rgba(13, 15, 18, 0.08);
  backdrop-filter: blur(18px);
}

.brand,
.site-nav nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
  white-space: nowrap;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--white);
}

.site-nav nav {
  gap: clamp(16px, 3vw, 34px);
  font-size: 14px;
  font-weight: 650;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  align-items: center;
  min-height: 100dvh;
  padding: 104px clamp(20px, 5vw, 72px) 58px;
  overflow: hidden;
  color: var(--white);
  background: var(--graphite);
}

.hero::after {
  position: absolute;
  inset: auto -8vw -18vw auto;
  width: 46vw;
  min-width: 360px;
  aspect-ratio: 1;
  content: "";
  background:
    linear-gradient(135deg, rgba(0, 214, 198, 0.28), transparent 56%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.12) 0 2px, transparent 2px 18px);
  transform: rotate(-18deg);
  clip-path: polygon(12% 0, 100% 22%, 82% 100%, 0 72%);
}

.hero__media {
  position: absolute;
  inset: 0;
  opacity: 0.66;
}

.hero__media::after {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(13, 15, 18, 0.96), rgba(13, 15, 18, 0.68) 42%, rgba(13, 15, 18, 0.34)),
    linear-gradient(0deg, rgba(13, 15, 18, 0.72), rgba(13, 15, 18, 0));
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__content,
.qr-panel {
  position: relative;
  z-index: 1;
}

.hero__content {
  max-width: 820px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(44px, 7.4vw, 96px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero__lead {
  max-width: 640px;
  margin-bottom: 32px;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.65;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 132px;
  height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 800;
  white-space: nowrap;
  transition:
    transform 160ms ease,
    background 160ms ease,
    border-color 160ms ease;
}

.button:active {
  transform: translateY(1px) scale(0.99);
}

.button--primary {
  color: #051110;
  background: var(--cyan);
}

.button--primary:hover {
  background: #24eadc;
}

.button--ghost {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
}

.button--ghost:hover {
  border-color: rgba(255, 255, 255, 0.62);
  background: rgba(255, 255, 255, 0.14);
}

.qr-panel {
  justify-self: end;
  display: grid;
  gap: 18px;
  width: min(100%, 330px);
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.qr-panel__code {
  padding: 12px;
  border-radius: 18px;
  background: var(--white);
}

.qr-panel__code img {
  width: 100%;
  border-radius: 12px;
}

.qr-panel strong,
.qr-panel span,
.scan__card strong,
.scan__card span {
  display: block;
}

.qr-panel strong {
  margin-bottom: 6px;
  font-size: 20px;
}

.qr-panel span {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.55;
}

.club-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.club-strip span {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px 12px;
  color: var(--graphite);
  background: var(--white);
  font-size: 15px;
  font-weight: 800;
  text-align: center;
}

.intro,
.activity,
.tool-band,
.community,
.scan {
  padding: clamp(72px, 9vw, 118px) clamp(20px, 5vw, 72px);
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.8fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: end;
  background: var(--paper);
}

.intro h2,
.section-title h2,
.tool-band h2,
.community h2,
.scan h2 {
  margin-bottom: 18px;
  font-size: clamp(32px, 4.8vw, 62px);
  line-height: 1.04;
  letter-spacing: 0;
}

.intro p,
.section-title p,
.tool-band__copy > p,
.community__copy p,
.scan__copy p {
  max-width: 720px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.85;
}

.intro__stats {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.intro__stats div {
  padding: 26px;
  background: var(--white);
}

.intro__stats strong {
  display: block;
  margin-bottom: 8px;
  font-size: 44px;
  line-height: 1;
}

.intro__stats span {
  color: var(--muted);
  font-weight: 650;
}

.section-title {
  max-width: 780px;
  margin-bottom: 42px;
}

.activity {
  background: var(--white);
}

.activity__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(280px, 0.88fr);
  gap: 22px;
}

.activity-card {
  display: grid;
  align-content: start;
  min-height: 430px;
  overflow: hidden;
  border-radius: var(--radius);
  background: #11171b;
  color: var(--white);
}

.activity-card--large {
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
}

.activity-card img {
  width: 100%;
  height: 100%;
  min-height: 210px;
  object-fit: cover;
}

.activity-card div {
  padding: clamp(28px, 4vw, 48px);
}

.activity-card span {
  display: block;
  margin-bottom: 14px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 850;
}

.activity-card h3 {
  margin-bottom: 14px;
  font-size: clamp(25px, 3vw, 38px);
  line-height: 1.1;
}

.activity-card p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 16px;
  line-height: 1.75;
}

.tool-band {
  display: grid;
  grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1fr);
  gap: clamp(34px, 7vw, 100px);
  align-items: center;
  background:
    linear-gradient(90deg, rgba(0, 214, 198, 0.1), transparent 42%),
    var(--paper);
}

.tool-band__phone {
  display: flex;
  justify-content: center;
}

.phone-frame {
  width: min(100%, 330px);
  min-height: 650px;
  padding: 18px;
  border: 10px solid #0d0f12;
  border-radius: 44px;
  background: #f7f8fa;
  box-shadow: var(--shadow);
}

.phone-top {
  width: 88px;
  height: 7px;
  margin: 0 auto 20px;
  border-radius: 999px;
  background: #22282d;
}

.phone-hero {
  min-height: 180px;
  padding: 22px;
  border-radius: 28px;
  color: var(--white);
  background:
    linear-gradient(150deg, rgba(0, 214, 198, 0.28), transparent 54%),
    #151a1f;
}

.phone-hero img {
  width: 48px;
  height: 48px;
  margin-bottom: 22px;
  border-radius: 14px;
  background: var(--white);
}

.phone-hero span {
  display: block;
  max-width: 180px;
  font-size: 30px;
  font-weight: 900;
  line-height: 1.05;
}

.phone-car {
  margin-top: 16px;
  padding: 22px;
  border-radius: 24px;
  background: var(--white);
}

.phone-car span,
.phone-car small,
.phone-metrics span {
  display: block;
  color: var(--muted);
}

.phone-car strong {
  display: block;
  margin: 8px 0;
  font-size: 22px;
}

.phone-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 16px;
}

.phone-metrics div {
  min-height: 112px;
  padding: 16px 10px;
  border-radius: 20px;
  background: var(--white);
}

.phone-metrics strong {
  display: block;
  margin-bottom: 14px;
  color: var(--cyan-dark);
  font-size: 22px;
}

.phone-metrics span {
  font-size: 13px;
  font-weight: 750;
}

.tool-list {
  display: grid;
  gap: 1px;
  margin-top: 34px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.tool-list div {
  display: grid;
  grid-template-columns: 128px 1fr;
  gap: 18px;
  padding: 22px;
  background: var(--white);
}

.tool-list strong {
  font-size: 17px;
}

.tool-list span {
  color: var(--muted);
  line-height: 1.7;
}

.community {
  display: grid;
  grid-template-columns: minmax(270px, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(34px, 6vw, 82px);
  color: var(--white);
  background: #0d0f12;
}

.community__copy {
  position: sticky;
  top: 106px;
  align-self: start;
}

.community__copy p {
  color: rgba(255, 255, 255, 0.68);
}

.community__items {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.14);
}

.community__items article {
  min-height: 270px;
  padding: clamp(24px, 4vw, 40px);
  background: #151a1f;
}

.community__items span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 48px;
  border-radius: 999px;
  color: #051110;
  background: var(--cyan);
  font-weight: 900;
}

.community__items h3 {
  margin-bottom: 12px;
  font-size: 27px;
}

.community__items p {
  color: rgba(255, 255, 255, 0.68);
  line-height: 1.75;
}

.scan {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: clamp(32px, 7vw, 96px);
  align-items: center;
  background:
    linear-gradient(135deg, rgba(0, 214, 198, 0.14), transparent 45%),
    var(--white);
}

.scan__card {
  padding: 18px 18px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0 18px 52px rgba(13, 15, 18, 0.1);
  text-align: center;
}

.scan__card img {
  width: 100%;
  margin-bottom: 18px;
  border-radius: 16px;
  background: var(--white);
}

.scan__card strong {
  margin-bottom: 6px;
  font-size: 20px;
}

.scan__card span {
  color: var(--muted);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(20px, 5vw, 72px);
  color: rgba(255, 255, 255, 0.74);
  background: var(--graphite);
  font-size: 14px;
}

@media (max-width: 900px) {
  .site-nav {
    height: 66px;
  }

  .site-nav nav {
    display: none;
  }

  .hero,
  .intro,
  .activity__grid,
  .tool-band,
  .community,
  .scan {
    grid-template-columns: 1fr;
  }

  .hero {
    align-content: center;
    gap: 34px;
    padding-top: 94px;
  }

  .hero__media::after {
    background:
      linear-gradient(90deg, rgba(13, 15, 18, 0.95), rgba(13, 15, 18, 0.72)),
      linear-gradient(0deg, rgba(13, 15, 18, 0.76), rgba(13, 15, 18, 0.1));
  }

  h1 {
    font-size: clamp(40px, 12vw, 58px);
  }

  .qr-panel {
    justify-self: start;
    width: min(100%, 260px);
  }

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

  .club-strip span:last-child {
    grid-column: 1 / -1;
  }

  .activity-card--large {
    grid-template-columns: 1fr;
  }

  .activity-card {
    min-height: 0;
  }

  .community__copy {
    position: static;
  }

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

@media (max-width: 560px) {
  .hero__actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .button {
    min-width: 0;
    padding: 0 16px;
  }

  .intro__stats strong {
    font-size: 36px;
  }

  .tool-list div {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .phone-frame {
    width: min(100%, 292px);
    min-height: 580px;
    border-radius: 38px;
  }

  .site-footer {
    display: grid;
  }
}