@charset "UTF-8";

:root {
  --ink: #11243d;
  --ink-soft: #5d6c80;
  --cyan: #22cbbc;
  --blue: #547dea;
  --lime: #d9f35c;
  --paper: #f7f8f4;
  --white: #ffffff;
  --line: #ced9df;
  --dark: #0d1f35;
  --header-height: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

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

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

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

ul,
ol,
p,
h1,
h2,
h3,
figure {
  margin: 0;
  padding: 0;
}

ul,
ol {
  list-style: none;
}

.shell {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.icon {
  display: inline-block;
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  background: center / contain no-repeat;
}

.icon-download { background-image: url("../icons/download.svg"); }
.icon-menu { background-image: url("../icons/menu.svg"); }
.icon-search { background-image: url("../icons/search.svg"); }
.icon-radar { background-image: url("../icons/radar.svg"); }
.icon-box { background-image: url("../icons/box.svg"); }
.icon-trophy { background-image: url("../icons/trophy.svg"); }
.icon-user { background-image: url("../icons/user.svg"); }
.icon-map { background-image: url("../icons/map.svg"); }
.icon-folder { background-image: url("../icons/folder.svg"); }
.icon-bell { background-image: url("../icons/bell.svg"); }
.icon-globe { background-image: url("../icons/globe.svg"); }
.icon-top { background-image: url("../icons/top.svg"); }

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(255, 255, 255, .98);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  width: min(1200px, calc(100% - 40px));
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 30px;
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand {
  margin-right: auto;
}

.brand img,
.footer-brand img {
  width: 46px;
  height: 46px;
  object-fit: contain;
}

.brand-copy,
.footer-brand span {
  display: flex;
  min-width: 0;
  flex-direction: column;
  line-height: 1.2;
}

.brand-copy strong,
.footer-brand strong {
  font-size: 20px;
}

.brand-copy span,
.footer-brand small {
  margin-top: 5px;
  color: var(--ink-soft);
  font-size: 12px;
  white-space: nowrap;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 30px;
}

.main-nav a {
  position: relative;
  display: block;
  padding: 26px 0 24px;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.main-nav a::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  background: var(--cyan);
  content: "";
  transform: scaleX(0);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-download,
.primary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--white);
  background: var(--dark);
  font-weight: 700;
}

.header-download {
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid var(--dark);
  font-size: 14px;
}

.header-download .icon,
.primary-action .icon,
.download-cta .icon {
  filter: brightness(0) invert(1);
}

.mobile-label,
.menu-toggle {
  display: none;
}

main {
  padding-top: var(--header-height);
}

.hero {
  position: relative;
  min-height: 760px;
  overflow: hidden;
  background-color: #edf9f7;
  background-image: linear-gradient(rgba(17, 36, 61, .055) 1px, transparent 1px), linear-gradient(90deg, rgba(17, 36, 61, .055) 1px, transparent 1px);
  background-size: 46px 46px;
}

.hero::before {
  position: absolute;
  top: 0;
  right: 0;
  width: 43%;
  height: 100%;
  background: var(--blue);
  content: "";
  opacity: .1;
}

.hero::after {
  position: absolute;
  right: 4%;
  bottom: -170px;
  width: 520px;
  height: 520px;
  border: 95px solid rgba(34, 203, 188, .16);
  border-radius: 50%;
  content: "";
}

.hero-grid {
  position: relative;
  z-index: 1;
  min-height: 760px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  align-items: center;
  gap: 76px;
}

.hero-copy {
  padding: 80px 0;
}

.eyebrow {
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.hero h1 {
  margin-top: 12px;
  font-size: clamp(72px, 7vw, 118px);
  line-height: 1;
  letter-spacing: -.07em;
  white-space: nowrap;
}

.hero-copy h2 {
  margin-top: 26px;
  font-size: clamp(28px, 3vw, 43px);
  line-height: 1.25;
}

.hero-desc {
  max-width: 670px;
  margin-top: 22px;
  color: var(--ink-soft);
  font-size: 17px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.hero-points span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 16px;
  background: rgba(255, 255, 255, .76);
  border: 1px solid var(--line);
  font-size: 14px;
  font-weight: 700;
}

.hero-action {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  margin-top: 28px;
}

.primary-action {
  min-width: 230px;
  min-height: 58px;
  padding: 0 26px;
}

.primary-action:hover,
.header-download:hover {
  color: var(--dark);
  background: var(--lime);
}

.primary-action:hover .icon,
.header-download:hover .icon {
  filter: none;
}

.update-label {
  color: var(--ink-soft);
  font-size: 13px;
}

.phone-stage {
  justify-self: end;
  display: flex;
  justify-content: flex-end;
  width: 100%;
  padding: 28px 0;
}

.phone {
  width: 344px;
  padding: 13px;
  background: #101619;
  border: 1px solid #101619;
  border-radius: 42px;
}

.phone-screen {
  position: relative;
  height: 652px;
  overflow: hidden;
  background: #f8fafb;
  border-radius: 31px;
}

.phone-screen::before {
  position: absolute;
  top: 0;
  left: 50%;
  z-index: 5;
  width: 112px;
  height: 26px;
  background: #101619;
  border-radius: 0 0 16px 16px;
  content: "";
  transform: translateX(-50%);
}

.phone-status {
  height: 40px;
  padding: 12px 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #101619;
  font-size: 12px;
  font-weight: 800;
}

.status-icons {
  display: flex;
  gap: 4px;
}

.status-icons i {
  width: 6px;
  height: 6px;
  background: #101619;
  border-radius: 50%;
}

.phone-bar {
  height: 54px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--white);
  border-bottom: 1px solid #e0e8eb;
}

.phone-brand {
  display: flex;
  align-items: center;
  gap: 9px;
}

.phone-brand img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.phone-brand strong {
  font-size: 14px;
}

.phone-search {
  height: 42px;
  margin: 13px 14px 0;
  padding: 0 13px;
  display: flex;
  align-items: center;
  gap: 9px;
  color: #778497;
  background: #eaf0f3;
  border-radius: 8px;
  font-size: 12px;
}

.phone-search .icon {
  width: 16px;
  height: 16px;
}

.phone-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 12px 14px 0;
  border-bottom: 1px solid #d9e2e7;
}

.phone-tab {
  position: relative;
  height: 42px;
  padding: 0;
  background: transparent;
  border: 0;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}

.phone-tab::after {
  position: absolute;
  right: 12px;
  bottom: 0;
  left: 12px;
  height: 3px;
  background: var(--cyan);
  content: "";
  transform: scaleX(0);
}

.phone-tab.is-active::after {
  transform: scaleX(1);
}

.phone-panel {
  display: none;
  height: 407px;
  padding: 13px 14px 70px;
  overflow: hidden;
}

.phone-panel.is-active {
  display: block;
}

.room-hero {
  position: relative;
  padding: 18px;
  color: var(--white);
  background: linear-gradient(135deg, #11243d, #35538a);
  border-radius: 12px;
}

.room-hero h3 {
  margin-top: 20px;
  font-size: 22px;
}

.room-hero p {
  margin-top: 2px;
  font-size: 12px;
  opacity: .78;
}

.live-dot {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 2px 8px;
  color: var(--dark);
  background: var(--lime);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
}

.join-room {
  margin-top: 15px;
  padding: 7px 14px;
  color: var(--dark);
  background: var(--lime);
  border: 0;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
}

.phone-section-title {
  margin: 16px 2px 7px;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
}

.phone-section-title span {
  color: var(--ink-soft);
}

.room-list li,
.rank-list li {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 11px 0;
  border-bottom: 1px solid #dce5e9;
}

.room-icon {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--white);
  background: var(--blue);
  border-radius: 8px;
  font-size: 12px;
  font-style: normal;
  font-weight: 800;
}

.room-list span,
.rank-list span {
  display: flex;
  flex: 1;
  flex-direction: column;
  line-height: 1.35;
}

.room-list strong,
.rank-list strong {
  font-size: 12px;
}

.room-list small,
.rank-list small {
  color: var(--ink-soft);
  font-size: 12px;
}

.room-list em,
.rank-list em {
  color: var(--blue);
  font-size: 12px;
  font-style: normal;
  font-weight: 800;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.resource-grid button {
  min-height: 116px;
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 15px;
  background: var(--white);
  border: 1px solid #d6e0e6;
  border-radius: 10px;
  cursor: pointer;
}

.resource-grid button:hover {
  border-color: var(--cyan);
}

.resource-grid strong {
  font-size: 14px;
}

.resource-grid span,
.phone-note span {
  color: var(--ink-soft);
  font-size: 12px;
}

.phone-note {
  margin-top: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  background: #e9f9f6;
  border-left: 4px solid var(--cyan);
}

.rank-head {
  padding: 18px;
  display: flex;
  justify-content: space-between;
  color: var(--white);
  background: var(--dark);
  border-radius: 10px;
  font-size: 13px;
}

.rank-head strong {
  color: var(--lime);
}

.rank-list {
  margin-top: 8px;
}

.rank-list b {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  color: var(--dark);
  background: var(--lime);
  border-radius: 50%;
}

.phone-bottom {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 68px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--white);
  border-top: 1px solid #dbe3e8;
}

.phone-bottom span {
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  color: #758194;
  font-size: 12px;
}

.phone-bottom .icon {
  width: 18px;
  height: 18px;
  opacity: .58;
}

.phone-bottom .is-current {
  color: var(--blue);
  font-weight: 800;
}

.phone-bottom .is-current .icon {
  opacity: 1;
}

.section {
  padding: 110px 0;
}

.section-heading {
  margin-bottom: 44px;
}

.section-heading h2 {
  margin-top: 8px;
  font-size: clamp(42px, 5vw, 68px);
  line-height: 1.1;
  letter-spacing: -.04em;
}

.split-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}

.split-heading > p {
  max-width: 470px;
  color: var(--ink-soft);
}

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

.arsenal-board {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  border: 1px solid var(--ink);
}

.arsenal-nav {
  display: flex;
  flex-direction: column;
  color: var(--white);
  background: var(--dark);
}

.arsenal-tab {
  min-height: 95px;
  padding: 0 28px;
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--white);
  background: transparent;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, .16);
  cursor: pointer;
  text-align: left;
  font-size: 17px;
  font-weight: 800;
}

.arsenal-tab span {
  color: var(--cyan);
  font-size: 12px;
}

.arsenal-tab.is-active {
  color: var(--dark);
  background: var(--lime);
}

.arsenal-tab.is-active span {
  color: var(--dark);
}

.arsenal-content {
  min-height: 440px;
  background: #f4f8f9;
}

.arsenal-panel {
  display: none;
  height: 100%;
}

.arsenal-panel.is-active {
  display: grid;
  grid-template-columns: .75fr 1.25fr;
}

.arsenal-intro {
  padding: 48px;
  background: #e5f8f4;
  border-right: 1px solid var(--line);
}

.arsenal-intro span {
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
}

.arsenal-intro h3 {
  margin-top: 30px;
  font-size: 34px;
  line-height: 1.25;
}

.arsenal-intro p {
  margin-top: 18px;
  color: var(--ink-soft);
}

.resource-table {
  padding: 30px 38px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.resource-table > div {
  min-height: 92px;
  display: grid;
  grid-template-columns: minmax(120px, 1fr) 80px 90px 100px;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--line);
}

.resource-table span,
.resource-table em {
  color: var(--ink-soft);
  font-size: 13px;
  font-style: normal;
}

.resource-table button,
.strategy-switch {
  min-height: 38px;
  background: var(--white);
  border: 1px solid var(--ink);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}

.resource-table button:hover,
.strategy-switch:hover {
  background: var(--lime);
}

.record {
  color: var(--white);
  background: var(--dark);
}

.light .eyebrow,
.record .eyebrow {
  color: var(--cyan);
}

.light > p {
  color: #aebdca;
}

.record-grid {
  display: grid;
  grid-template-columns: .7fr 1.2fr .9fr;
  gap: 18px;
}

.score-card,
.record-list,
.strategy-card {
  min-height: 360px;
  padding: 34px;
  border: 1px solid rgba(255, 255, 255, .22);
}

.score-card {
  display: flex;
  flex-direction: column;
  background: var(--cyan);
  color: var(--dark);
}

.score-card > span,
.score-card small {
  font-size: 13px;
  font-weight: 700;
}

.score-card > strong {
  margin-top: auto;
  font-size: 110px;
  line-height: 1;
}

.score-card > p {
  font-weight: 800;
}

.score-meter {
  height: 8px;
  margin: 22px 0 10px;
  background: rgba(17, 36, 61, .18);
}

.score-meter i {
  display: block;
  height: 100%;
  background: var(--dark);
}

.record-list h3,
.strategy-card h3 {
  font-size: 26px;
}

.record-list > div {
  min-height: 82px;
  display: grid;
  grid-template-columns: 55px 1fr 34px;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, .14);
}

.record-list time {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
}

.record-list span {
  display: flex;
  flex-direction: column;
}

.record-list small {
  color: #9fb0c0;
  font-size: 12px;
}

.record-list em {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  color: #ff7979;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 12px;
  font-style: normal;
  font-weight: 800;
}

.record-list em.win {
  color: var(--lime);
}

.strategy-card {
  background: #152b47;
}

.strategy-card h3 {
  margin-top: 18px;
}

.strategy-card ul {
  margin-top: 28px;
}

.strategy-card li {
  padding: 12px 0;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, .14);
}

.strategy-card li b {
  color: var(--lime);
}

.strategy-switch {
  margin-top: 28px;
  padding: 0 18px;
  color: var(--white);
  background: transparent;
  border-color: rgba(255, 255, 255, .5);
}

.screenshots {
  background: #edf2f6;
}

.screen-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.screen-card {
  min-width: 0;
  background: var(--white);
  border: 1px solid var(--ink);
}

.screen-media {
  width: 100%;
  aspect-ratio: 250 / 450;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: #e6edf1;
}

.screen-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.screen-card figcaption {
  min-height: 92px;
  padding: 18px;
  display: flex;
  align-items: flex-start;
  gap: 13px;
  border-top: 1px solid var(--line);
}

.screen-card figcaption b {
  color: var(--blue);
  font-size: 13px;
}

.screen-card figcaption span {
  display: flex;
  flex-direction: column;
}

.screen-card figcaption small {
  color: var(--ink-soft);
  font-size: 12px;
}

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

.faq-list {
  border-top: 1px solid var(--ink);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item > button,
.official-site > button {
  width: 100%;
  min-height: 76px;
  padding: 0 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  border: 0;
  cursor: pointer;
  text-align: left;
  font-size: 17px;
  font-weight: 800;
}

.faq-item > button span {
  display: flex;
  align-items: center;
  gap: 24px;
}

.faq-item > button b {
  color: var(--blue);
  font-size: 12px;
}

.faq-item > button > i,
.fold-mark {
  position: relative;
  width: 18px;
  height: 18px;
}

.faq-item > button > i::before,
.faq-item > button > i::after,
.fold-mark::before,
.fold-mark::after {
  position: absolute;
  top: 8px;
  left: 2px;
  width: 14px;
  height: 2px;
  background: var(--ink);
  content: "";
}

.faq-item > button > i::after,
.fold-mark::after {
  transform: rotate(90deg);
}

.faq-item.is-open > button > i::after,
.official-site.is-open .fold-mark::after {
  transform: rotate(0);
}

.faq-answer,
.official-answer {
  display: block;
  max-height: 0;
  overflow: hidden;
  visibility: hidden;
  transition: max-height .25s ease, visibility 0s linear .25s;
}

.faq-item.is-open .faq-answer,
.official-site.is-open .official-answer {
  max-height: 320px;
  visibility: visible;
  transition: max-height .25s ease, visibility 0s linear 0s;
}

.faq-answer p {
  padding: 0 64px 24px 70px;
  color: var(--ink-soft);
}

.official-site {
  margin-top: 22px;
  border: 1px solid var(--ink);
}

.official-site > button span {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.official-answer a {
  margin: 0 64px;
  color: var(--blue);
}

.official-site.is-open .official-answer a {
  padding-bottom: 24px;
}

.reviews {
  color: var(--white);
  background: #142944;
}

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

.review-card {
  min-height: 300px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  color: var(--ink);
  background: var(--white);
  border-top: 4px solid var(--cyan);
}

.review-head {
  display: grid;
  grid-template-columns: 42px 1fr auto;
  align-items: center;
  gap: 10px;
}

.review-avatar {
  width: 42px;
  height: 42px;
  background: var(--dark) center / 22px no-repeat url("../icons/avatar.svg");
  border-radius: 50%;
}

.review-head strong {
  font-size: 14px;
}

.review-stars {
  display: flex;
  gap: 2px;
}

.review-stars i {
  width: 13px;
  height: 13px;
  background: center / contain no-repeat url("../icons/star.svg");
}

.review-card p {
  margin: 22px 0;
  color: #32445b;
  font-size: 14px;
}

.review-card time {
  margin-top: auto;
  align-self: flex-end;
  color: var(--ink-soft);
  font-size: 12px;
}

.download-section {
  padding: 80px 0;
  background: #e8f8f5;
}

.download-pass {
  min-height: 190px;
  display: grid;
  grid-template-columns: 190px 1fr 250px;
  color: var(--white);
  background: var(--dark);
  border: 1px solid var(--dark);
}

.download-index {
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  color: var(--dark);
  background: var(--lime);
}

.download-index span {
  font-size: 70px;
  font-weight: 900;
  line-height: 1;
}

.download-index small {
  margin-top: 8px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
}

.download-copy {
  padding: 38px 46px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.download-copy h2 {
  margin-top: 8px;
  font-size: 30px;
}

.download-copy > p:last-child {
  color: #adbbc8;
}

.download-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--dark);
  background: var(--cyan);
  font-weight: 800;
}

.download-cta .icon {
  filter: none;
}

.download-cta:hover {
  background: var(--lime);
}

.site-footer {
  color: var(--white);
  background: #0a1728;
}

.footer-main {
  min-height: 190px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 30px;
}

.footer-brand small {
  color: #95a7ba;
}

.footer-nav {
  display: flex;
  gap: 28px;
  font-size: 13px;
}

.footer-nav a:hover {
  color: var(--lime);
}

.copyright {
  grid-column: 1 / -1;
  padding: 18px 0;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, .14);
  color: #9aabbb;
  font-size: 12px;
}

.back-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  background: var(--lime);
  border: 1px solid var(--dark);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
}

.back-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-top .icon {
  width: 22px;
  height: 22px;
}

@media (max-width: 1040px) {
  .main-nav ul {
    gap: 18px;
  }

  .main-nav a {
    font-size: 13px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) 350px;
    gap: 35px;
  }

  .screen-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .screen-card:last-child {
    display: none;
  }

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

  .strategy-card {
    grid-column: 1 / -1;
    min-height: auto;
  }
}

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

  body {
    font-size: 15px;
  }

  .shell,
  .header-inner {
    width: calc(100% - 28px);
  }

  .site-header {
    transform: translateZ(0);
    backface-visibility: hidden;
  }

  .brand img {
    width: 38px;
    height: 38px;
  }

  .brand-copy strong {
    font-size: 16px;
  }

  .brand-copy span {
    max-width: none;
    overflow: visible;
    text-overflow: clip;
    font-size: 12px;
  }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    left: 0;
    display: none;
    padding: 12px 14px 20px;
    background: var(--white);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .main-nav.is-open {
    display: block;
  }

  .main-nav ul {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .main-nav a {
    padding: 12px;
    background: #f2f6f8;
    border: 1px solid #e0e8ec;
    text-align: center;
  }

  .main-nav a::after {
    display: none;
  }

  .menu-toggle {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    background: var(--white);
    border: 1px solid var(--ink);
    cursor: pointer;
  }

  .header-download {
    min-height: 44px;
    padding: 0 14px;
    white-space: nowrap;
  }

  .desktop-label,
  .header-download .icon {
    display: none;
  }

  .mobile-label {
    display: inline;
  }

  .hero,
  .hero-grid {
    min-height: auto;
  }

  .hero-grid {
    padding: 64px 0 70px;
    grid-template-columns: 1fr;
    gap: 46px;
  }

  .hero-copy {
    padding: 0;
    text-align: center;
  }

  .hero h1 {
    font-size: clamp(62px, 18vw, 88px);
  }

  .hero-copy h2 {
    font-size: 29px;
  }

  .hero-desc {
    margin-right: auto;
    margin-left: auto;
    font-size: 15px;
  }

  .hero-points,
  .hero-action {
    align-items: center;
    justify-content: center;
  }

  .phone-stage {
    justify-content: center;
    padding: 0;
  }

  .phone {
    width: min(344px, 100%);
  }

  .section {
    padding: 76px 0;
  }

  .split-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 15px;
  }

  .section-heading h2 {
    font-size: 46px;
  }

  .arsenal-board {
    grid-template-columns: 1fr;
  }

  .arsenal-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .arsenal-tab {
    min-height: 74px;
    padding: 10px;
    flex-direction: column;
    justify-content: center;
    gap: 2px;
    text-align: center;
    font-size: 13px;
    border-right: 1px solid rgba(255, 255, 255, .16);
  }

  .arsenal-panel.is-active {
    grid-template-columns: 1fr;
  }

  .arsenal-intro {
    padding: 30px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .arsenal-intro h3 {
    margin-top: 15px;
    font-size: 27px;
  }

  .resource-table {
    padding: 16px 24px 26px;
  }

  .resource-table > div {
    padding: 14px 0;
    grid-template-columns: 1fr auto;
  }

  .resource-table em,
  .resource-table button {
    grid-column: 1 / -1;
  }

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

  .strategy-card {
    grid-column: auto;
  }

  .score-card,
  .record-list,
  .strategy-card {
    min-height: auto;
  }

  .score-card > strong {
    margin-top: 30px;
    font-size: 82px;
  }

  .screen-track {
    display: flex;
    gap: 12px;
    margin-right: -14px;
    margin-left: -14px;
    padding: 0 14px 12px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
  }

  .screen-card,
  .screen-card:last-child {
    display: block;
    flex: 0 0 min(74vw, 280px);
    scroll-snap-align: start;
  }

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

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

  .download-pass {
    grid-template-columns: 110px 1fr;
  }

  .download-index {
    grid-row: 1 / 3;
  }

  .download-copy {
    padding: 28px;
  }

  .download-cta {
    min-height: 70px;
  }

  .footer-main {
    padding: 50px 0 0;
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .footer-nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  .back-top {
    right: 14px;
    bottom: 14px;
  }
}

@media (max-width: 520px) {
  .shell,
  .header-inner {
    width: calc(100% - 24px);
  }

  .header-inner {
    gap: 7px;
  }

  .brand {
    gap: 7px;
  }

  .brand img {
    width: 34px;
    height: 34px;
  }

  .brand-copy strong {
    font-size: 14px;
  }

  .brand-copy span {
    font-size: 12px;
  }

  .header-download {
    padding: 0 11px;
    font-size: 12px;
  }

  .menu-toggle {
    width: 42px;
    height: 42px;
  }

  .hero-grid {
    padding-top: 46px;
  }

  .hero h1 {
    font-size: clamp(54px, 20vw, 74px);
  }

  .hero-copy h2 {
    font-size: 26px;
  }

  .hero-points {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    width: 100%;
  }

  .hero-points span {
    min-height: 80px;
    padding: 10px 6px;
    flex-direction: column;
    justify-content: center;
    font-size: 12px;
  }

  .primary-action {
    width: 100%;
  }

  .phone-screen {
    height: 630px;
  }

  .section-heading h2 {
    font-size: 42px;
  }

  .arsenal-intro,
  .resource-table,
  .score-card,
  .record-list,
  .strategy-card {
    padding-right: 20px;
    padding-left: 20px;
  }

  .faq-item > button,
  .official-site > button {
    min-height: 72px;
    padding: 12px 14px;
    font-size: 14px;
  }

  .faq-item > button span {
    gap: 12px;
  }

  .faq-answer p {
    padding: 0 16px 20px 42px;
    font-size: 13px;
  }

  .official-answer a {
    margin: 0 14px;
    word-break: break-all;
  }

  .review-card {
    padding: 22px;
  }

  .review-head {
    grid-template-columns: 38px 1fr;
  }

  .review-avatar {
    width: 38px;
    height: 38px;
  }

  .review-stars {
    grid-column: 2;
  }

  .download-section {
    padding: 56px 0;
  }

  .download-pass {
    grid-template-columns: 1fr;
  }

  .download-index {
    min-height: 115px;
    grid-row: auto;
  }

  .download-index span {
    font-size: 54px;
  }

  .download-copy {
    padding: 28px 22px;
    text-align: center;
  }

  .download-copy h2 {
    font-size: 24px;
  }

  .download-cta {
    min-height: 74px;
  }

  .footer-nav {
    gap: 14px 20px;
  }
}

@media (hover: none) {
  a,
  button,
  summary {
    -webkit-tap-highlight-color: transparent;
    transition: none !important;
    animation: none !important;
  }
}