:root {
  --ink: #191919;
  --ink-soft: #2b2b2b;
  --red: #e4232f;
  --red-dark: #b8101b;
  --orange: #f06b38;
  --cream: #f5f0e7;
  --cream-2: #ebe3d7;
  --paper: #ffffff;
  --mist: #f5f6f7;
  --line: #dedede;
  --muted: #6f6f6f;
  --white: #ffffff;
  --shell: 1360px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  top: -90px;
  left: 18px;
  z-index: 1000;
  padding: 10px 15px;
  color: var(--white);
  background: var(--red);
  font-weight: 900;
}

.skip-link:focus {
  top: 18px;
}

.header-shell,
.hero-shell,
.section,
.final-shell,
.footer-shell {
  width: min(calc(100% - 56px), var(--shell));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.header-shell {
  min-height: 78px;
  display: grid;
  grid-template-columns: 230px 1fr 145px;
  gap: 32px;
  align-items: center;
}

.brand {
  width: max-content;
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-line {
  width: 4px;
  height: 35px;
  background: var(--red);
}

.brand img {
  width: auto;
  height: 35px;
  object-fit: contain;
  filter: drop-shadow(0 1px 0 rgba(0, 0, 0, 0.05));
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 30px;
  color: #666;
  font-size: 12px;
  font-weight: 800;
}

.site-nav a {
  padding: 25px 0 23px;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--red);
}

.header-download {
  justify-self: end;
  padding: 11px 15px;
  color: var(--white);
  background: var(--ink);
  font-size: 12px;
  font-weight: 900;
}

.header-download:hover,
.header-download:focus-visible {
  background: var(--red);
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  background: var(--paper);
  border: 1px solid var(--line);
}

.menu-button span {
  display: block;
  width: 19px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
}

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, var(--paper) 0 67%, var(--cream) 67% 100%);
}

.hero::after {
  content: "21";
  position: absolute;
  right: -18px;
  top: -70px;
  color: rgba(25, 25, 25, 0.035);
  font-size: 360px;
  font-weight: 950;
  line-height: 1;
  pointer-events: none;
}

.hero-shell {
  position: relative;
  z-index: 2;
  min-height: 650px;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 85px;
  align-items: center;
  padding-top: 80px;
  padding-bottom: 58px;
}

.eyebrow,
.section-label {
  margin: 0 0 15px;
  color: var(--red);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  max-width: 760px;
  color: var(--ink);
  font-size: clamp(56px, 6.7vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.064em;
}

.hero-lead {
  max-width: 720px;
  margin: 28px 0 0;
  color: #565656;
  font-size: 18px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
  margin-top: 35px;
}

.primary-button {
  min-width: 270px;
  min-height: 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 14px 20px;
  color: var(--white);
  background: var(--red);
  font-weight: 900;
}

.primary-button:hover,
.primary-button:focus-visible {
  background: var(--red-dark);
}

.primary-button b {
  font-size: 21px;
}

.text-link {
  padding-bottom: 3px;
  color: var(--ink);
  border-bottom: 1px solid currentColor;
  font-size: 13px;
  font-weight: 850;
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 34px;
}

.hero-proof span {
  padding: 6px 10px;
  color: #575757;
  background: var(--mist);
  border: 1px solid var(--line);
  font-size: 10px;
  font-weight: 800;
}

.hero-visual {
  margin: 0;
}

.hero-visual img {
  width: 100%;
  max-height: 500px;
  object-fit: contain;
}

.hero-visual figcaption {
  max-width: 680px;
  margin: 13px auto 0;
  color: var(--muted);
  font-size: 10px;
  text-align: center;
}

.hero-bottom {
  position: relative;
  z-index: 3;
  width: min(calc(100% - 56px), var(--shell));
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0 auto -1px;
  border-top: 2px solid var(--ink);
  background: var(--paper);
}

.hero-bottom > div {
  min-height: 115px;
  padding: 20px 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.hero-bottom span {
  color: var(--red);
  font-size: 10px;
  font-weight: 950;
}

.hero-bottom strong {
  display: block;
  margin-top: 6px;
  font-size: 15px;
}

.hero-bottom p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 11px;
}

.section {
  padding-top: 108px;
  padding-bottom: 108px;
}

.section-head {
  display: grid;
  grid-template-columns: 85px 1fr;
  gap: 30px;
  max-width: 1050px;
}

.section-head-wide {
  max-width: 1170px;
}

.section-index {
  color: var(--red);
  font-size: 58px;
  font-weight: 950;
  line-height: 1;
}

.section-head h2,
.device-copy h2,
.tournament-copy h2,
.rewards-head h2,
.security-copy h2,
.final-copy h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(34px, 4.3vw, 54px);
  line-height: 1.15;
  letter-spacing: -0.045em;
}

.section-head > div > p:not(.section-label),
.device-copy > p:not(.section-label),
.tournament-copy > p:not(.section-label),
.rewards-head p:not(.section-label),
.security-copy > p:not(.section-label) {
  margin: 20px 0 0;
  color: var(--muted);
}

.download-section {
  background: var(--paper);
}

.download-bar {
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr 205px;
  margin-top: 50px;
  border-top: 2px solid var(--ink);
  border-left: 1px solid var(--line);
}

.download-bar > div {
  min-height: 135px;
  display: grid;
  align-content: center;
  padding: 21px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.download-bar span,
.download-bar strong {
  display: block;
}

.download-bar span {
  color: var(--red);
  font-size: 9px;
  font-weight: 900;
}

.download-bar strong {
  margin-top: 7px;
  font-size: 13px;
}

.download-bar > a {
  min-height: 135px;
  display: grid;
  place-items: center;
  padding: 20px;
  color: var(--white);
  background: var(--ink);
  font-size: 12px;
  font-weight: 900;
  text-align: center;
}

.download-bar > a:hover,
.download-bar > a:focus-visible {
  background: var(--red);
}

.devices-section {
  background: var(--cream);
}

.devices-layout {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 80px;
  align-items: center;
}

.device-copy .section-index,
.tournament-copy .section-index,
.security-copy .section-index {
  display: block;
  margin-bottom: 12px;
}

.device-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 32px;
  border-top: 1px solid #d5cbbb;
  border-left: 1px solid #d5cbbb;
}

.device-tab {
  min-height: 54px;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-right: 1px solid #d5cbbb;
  border-bottom: 1px solid #d5cbbb;
  cursor: pointer;
  font-size: 11px;
  font-weight: 900;
}

.device-tab.is-active {
  color: var(--white);
  background: var(--ink);
}

.device-result {
  margin-top: 0;
  padding: 28px;
  background: var(--paper);
  border: 1px solid #d5cbbb;
  border-top: 0;
}

.device-result > span {
  color: var(--red);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.11em;
}

.device-result h3 {
  margin: 7px 0 10px;
  font-size: 25px;
}

.device-result > p {
  margin: 0;
  color: var(--muted);
}

.device-result dl {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 22px 0 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.device-result dl div {
  padding: 10px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.device-result dt {
  color: #888;
  font-size: 8px;
  font-weight: 800;
}

.device-result dd {
  margin: 4px 0 0;
  font-size: 10px;
  font-weight: 850;
}

.devices-visual {
  margin: 0;
}

.devices-visual img {
  width: 100%;
  max-height: 470px;
  object-fit: contain;
}

.devices-visual figcaption {
  margin-top: 13px;
  color: var(--muted);
  font-size: 10px;
  text-align: center;
}

.inside-section {
  background: var(--paper);
}

.game-editorial {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 26px;
  margin-top: 52px;
}

.game-card {
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--paper);
}

.game-card figure {
  margin: 0;
  background: #111;
}

.game-card img {
  width: 100%;
  object-fit: cover;
}

.game-card-main {
  grid-row: span 2;
}

.game-card-main img {
  aspect-ratio: 1.7 / 1;
}

.game-card-banner img {
  aspect-ratio: 3.3 / 1;
}

.game-card > div {
  padding: 25px;
}

.game-card span {
  color: var(--red);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.11em;
}

.game-card h3 {
  margin: 8px 0 9px;
  font-size: 24px;
}

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

.tournament-section {
  background: var(--ink);
  color: var(--white);
}

.tournament-layout {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 78px;
  align-items: center;
}

.tournament-visual {
  margin: 0;
}

.tournament-visual img {
  width: 100%;
  max-height: 520px;
  object-fit: contain;
}

.tournament-copy h2 {
  color: var(--white);
}

.tournament-copy > p:not(.section-label) {
  color: #b8b8b8;
}

.tournament-copy ul {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid #454545;
}

.tournament-copy li {
  padding: 11px 0;
  color: #d0d0d0;
  border-bottom: 1px solid #454545;
  font-size: 12px;
}

.underlined-link {
  display: inline-block;
  margin-top: 26px;
  padding-bottom: 3px;
  color: #ff8b94;
  border-bottom: 1px solid currentColor;
  font-size: 12px;
  font-weight: 900;
}

.rewards-section {
  background: var(--cream);
}

.rewards-head {
  max-width: 960px;
}

.rewards-head .section-index {
  display: block;
  margin-bottom: 12px;
}

.rewards-visual {
  margin: 48px 0 0;
}

.rewards-visual img {
  width: 100%;
  max-height: 520px;
  object-fit: cover;
  object-position: center;
}

.rewards-visual figcaption {
  padding-top: 12px;
  color: var(--muted);
  font-size: 10px;
}

.install-section {
  background: var(--paper);
}

.install-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  margin: 52px 0 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--ink);
  border-left: 1px solid var(--line);
}

.install-flow li {
  min-height: 285px;
  padding: 25px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.install-flow li:nth-child(even) {
  background: var(--mist);
}

.install-flow li > span {
  color: var(--red);
  font-size: 32px;
  font-weight: 950;
  line-height: 1;
}

.install-flow h3 {
  margin: 55px 0 10px;
  font-size: 18px;
}

.install-flow p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.security-section {
  background: var(--mist);
}

.security-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 75px;
  align-items: center;
}

.security-list {
  margin-top: 31px;
  border-top: 2px solid var(--ink);
}

.security-list article {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.security-list b {
  color: var(--red);
  font-size: 10px;
}

.security-list span {
  color: #515151;
  font-size: 12px;
}

.security-visual {
  margin: 0;
}

.security-visual img {
  width: 100%;
  max-height: 440px;
  object-fit: cover;
}

.security-visual figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 10px;
}

.update-section {
  background: var(--paper);
}

.update-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
  margin-top: 52px;
}

.update-grid article {
  min-height: 390px;
  padding: 30px 0;
  border-top: 4px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.update-grid article:last-child {
  border-top-color: var(--red);
}

.update-grid > article > span {
  color: var(--red);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.11em;
}

.update-grid h3 {
  margin: 47px 0 11px;
  font-size: 29px;
}

.update-grid p {
  margin: 0;
  color: var(--muted);
}

.update-grid ul {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.update-grid li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  font-weight: 800;
}

.faq-section {
  background: var(--cream);
}

.faq-list {
  margin-top: 50px;
  border-top: 2px solid var(--ink);
}

.faq-list details {
  border-bottom: 1px solid #d5cbbb;
}

.faq-list summary {
  position: relative;
  padding: 24px 55px 24px 0;
  font-size: 16px;
  font-weight: 850;
  cursor: pointer;
  list-style: none;
}

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

.faq-list summary span {
  position: absolute;
  top: 20px;
  right: 4px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  color: var(--red);
  border: 1px solid #d5cbbb;
  border-radius: 50%;
  transition: transform 0.2s ease;
}

.faq-list details[open] summary span {
  transform: rotate(45deg);
}

.faq-list p {
  margin: -2px 0 23px;
  color: var(--muted);
}

.related-section {
  background: var(--paper);
}

.related-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 50px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.related-links a {
  min-height: 140px;
  display: grid;
  align-content: center;
  padding: 23px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.related-links a:hover,
.related-links a:focus-visible {
  background: var(--mist);
}

.related-links strong {
  color: var(--red);
  font-size: 15px;
}

.related-links span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 11px;
}

.final-section {
  background: var(--paper);
}

.final-shell {
  min-height: 285px;
  display: grid;
  grid-template-columns: 110px 1fr 250px;
  gap: 42px;
  align-items: center;
  padding: 44px 0;
  border-top: 5px solid var(--red);
  border-bottom: 1px solid var(--line);
}

.final-number {
  width: 90px;
  height: 110px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: var(--ink);
  font-size: 41px;
  font-weight: 950;
}

.final-copy p {
  margin: 0 0 9px;
  color: var(--red);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.13em;
}

.final-copy h2 {
  font-size: clamp(29px, 3.6vw, 44px);
}

.final-copy span {
  display: block;
  margin-top: 13px;
  color: var(--muted);
  font-size: 11px;
}

.final-button {
  min-height: 70px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 16px 20px;
  color: var(--white);
  background: var(--red);
  font-weight: 900;
}

.final-button b {
  font-size: 20px;
}

.site-footer {
  padding: 52px 0 32px;
  color: #b5b5b5;
  background: var(--ink);
}

.footer-shell {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px 55px;
}

.footer-brand img {
  width: auto;
  height: 34px;
  object-fit: contain;
}

.footer-brand p {
  max-width: 790px;
  margin: 17px 0 0;
  color: #777;
  font-size: 11px;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 8px 25px;
  font-size: 12px;
  font-weight: 700;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: var(--white);
}

.copyright {
  grid-column: 1 / -1;
  margin: 5px 0 0;
  padding-top: 21px;
  color: #595959;
  border-top: 1px solid #3a3a3a;
  font-size: 11px;
}

.mobile-download {
  display: none;
}

@media (max-width: 1080px) {
  .header-shell {
    grid-template-columns: 215px 1fr 135px;
  }

  .site-nav {
    gap: 17px;
  }

  .hero-shell {
    gap: 45px;
  }

  .install-flow {
    grid-template-columns: repeat(3, 1fr);
  }

  .install-flow li:nth-child(4),
  .install-flow li:nth-child(5) {
    min-height: 240px;
  }
}

@media (max-width: 820px) {
  html {
    scroll-padding-top: 72px;
  }

  .header-shell {
    min-height: 70px;
    grid-template-columns: 1fr auto;
  }

  .header-download {
    display: none;
  }

  .menu-button {
    display: block;
  }

  .site-nav {
    position: absolute;
    left: 20px;
    right: 20px;
    top: calc(100% + 8px);
    display: none;
    padding: 10px;
    background: var(--paper);
    border: 1px solid var(--line);
    box-shadow: 0 22px 55px rgba(0, 0, 0, 0.17);
  }

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

  .site-nav a {
    padding: 10px 12px;
  }

  .hero {
    background: var(--paper);
  }

  .hero-shell,
  .devices-layout,
  .tournament-layout,
  .security-layout {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    text-align: center;
  }

  .hero-actions,
  .hero-proof {
    justify-content: center;
  }

  .hero-visual,
  .devices-visual,
  .tournament-visual,
  .security-visual {
    width: min(100%, 720px);
    margin-inline: auto;
  }

  .game-editorial {
    grid-template-columns: 1fr;
  }

  .game-card-main {
    grid-row: auto;
  }

  .install-flow {
    grid-template-columns: repeat(2, 1fr);
  }

  .final-shell {
    grid-template-columns: 100px 1fr;
  }

  .final-button {
    grid-column: 2;
    width: 250px;
  }

  .footer-shell {
    grid-template-columns: 1fr;
  }

  .copyright {
    grid-column: auto;
  }
}

@media (max-width: 600px) {
  body {
    padding-bottom: 70px;
  }

  .header-shell,
  .hero-shell,
  .hero-bottom,
  .section,
  .final-shell,
  .footer-shell {
    width: min(calc(100% - 28px), var(--shell));
  }

  .brand img {
    height: 31px;
  }

  .hero-shell {
    min-height: 0;
    padding-top: 58px;
    padding-bottom: 48px;
  }

  .hero h1 {
    font-size: clamp(46px, 14vw, 66px);
  }

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

  .hero-actions {
    display: grid;
  }

  .primary-button {
    min-width: 0;
    width: 100%;
  }

  .text-link {
    justify-self: center;
  }

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

  .hero-bottom > div {
    min-height: 0;
  }

  .section {
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .section-head {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .section-index {
    font-size: 43px;
  }

  .section-head h2,
  .device-copy h2,
  .tournament-copy h2,
  .rewards-head h2,
  .security-copy h2 {
    font-size: clamp(30px, 10vw, 41px);
  }

  .download-bar,
  .device-tabs,
  .update-grid,
  .related-links {
    grid-template-columns: 1fr;
  }

  .download-bar > a {
    min-height: 68px;
  }

  .device-result dl {
    grid-template-columns: 1fr;
  }

  .game-card > div {
    padding: 20px;
  }

  .game-card h3 {
    font-size: 21px;
  }

  .rewards-visual img,
  .security-visual img {
    object-fit: contain;
  }

  .install-flow {
    grid-template-columns: 1fr;
  }

  .install-flow li,
  .install-flow li:nth-child(4),
  .install-flow li:nth-child(5) {
    min-height: 0;
  }

  .install-flow h3 {
    margin-top: 28px;
  }

  .update-grid {
    gap: 22px;
  }

  .update-grid article {
    min-height: 0;
  }

  .faq-list summary {
    font-size: 15px;
  }

  .final-shell {
    grid-template-columns: 1fr;
    padding: 34px 0;
  }

  .final-number {
    width: 76px;
    height: 90px;
  }

  .final-button {
    grid-column: auto;
    width: 100%;
  }

  .footer-nav {
    grid-template-columns: 1fr 1fr;
  }

  .mobile-download {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 120;
    min-height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 9px 14px;
    color: var(--white);
    background: rgba(25, 25, 25, 0.97);
    border-top: 1px solid #3b3b3b;
  }

  .mobile-download > div {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .mobile-download img {
    width: 74px;
    height: auto;
    object-fit: contain;
  }

  .mobile-download small,
  .mobile-download strong {
    display: block;
    line-height: 1.2;
  }

  .mobile-download small {
    color: #777;
    font-size: 9px;
  }

  .mobile-download strong {
    margin-top: 3px;
    font-size: 13px;
  }

  .mobile-download > a {
    padding: 11px 15px;
    color: var(--white);
    background: var(--red);
    font-size: 13px;
    font-weight: 900;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}