:root {
  --paper: #f4efe6;
  --paper-deep: #e8dfd0;
  --surface: #fffdf8;
  --ink: #172032;
  --muted: #667082;
  --line: rgba(23, 32, 50, 0.13);
  --navy: #13213d;
  --navy-soft: #1c3158;
  --gold: #d5a853;
  --gold-soft: #f2d79a;
  --mint: #8bd8c1;
  --mint-deep: #17846f;
  --blue-soft: #dfe8fa;
  --container: 1180px;
  --radius-lg: 34px;
  --radius-md: 22px;
  --shadow: 0 28px 75px rgba(23, 32, 50, 0.12);
  --header-height: 78px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

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

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

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}

.section {
  padding: 110px 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 9999;
  padding: 11px 16px;
  color: #fff;
  background: #000;
  border-radius: 9px;
  transform: translateY(-150%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(255, 253, 248, 0.92);
  border-bottom: 1px solid rgba(23, 32, 50, 0.08);
  backdrop-filter: blur(16px);
  transition: box-shadow 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(255, 253, 248, 0.98);
  box-shadow: 0 12px 36px rgba(23, 32, 50, 0.08);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 26px;
}

.brand {
  min-width: 248px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand img {
  width: 104px;
  height: 42px;
  object-fit: contain;
}

.brand > span {
  padding-left: 14px;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--line);
  line-height: 1.2;
}

.brand strong {
  font-size: 13px;
}

.brand small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 10px;
}

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav a {
  position: relative;
  color: #3f485b;
  font-size: 13px;
  font-weight: 700;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--mint-deep);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.header-cta {
  padding: 11px 18px;
  color: #fff;
  background: var(--navy);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  transition: transform 180ms ease, background 180ms ease;
}

.header-cta:hover,
.header-cta:focus-visible {
  background: var(--navy-soft);
  transform: translateY(-2px);
}

.nav-toggle {
  width: 46px;
  height: 42px;
  margin-left: auto;
  padding: 0;
  display: none;
  place-content: center;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 12px;
  cursor: pointer;
}

.nav-toggle span {
  width: 21px;
  height: 2px;
  display: block;
  background: var(--navy);
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 22%, rgba(213, 168, 83, 0.18), transparent 31%),
    linear-gradient(180deg, #f8f3ea 0%, var(--paper) 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.4;
  background-image:
    linear-gradient(rgba(23, 32, 50, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 32, 50, 0.04) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, #000, transparent 82%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  min-height: 745px;
  padding-top: 80px;
  padding-bottom: 92px;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  align-items: center;
  gap: 70px;
}

.eyebrow {
  margin-bottom: 22px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--mint-deep);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.eyebrow i {
  width: 28px;
  height: 1px;
  display: inline-block;
  background: rgba(23, 132, 111, 0.45);
}

.eyebrow strong {
  color: #8e6927;
  font-weight: 900;
}

.hero h1 {
  margin: 0;
  max-width: 680px;
  color: var(--navy);
  font-size: clamp(48px, 5.4vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.05em;
}

.hero h1 span {
  margin-top: 16px;
  display: block;
  color: #8a6423;
  font-size: clamp(25px, 2.9vw, 40px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.25;
}

.hero-lead {
  max-width: 690px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.95;
}

.hero-actions {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.system-button {
  min-height: 80px;
  padding: 13px 15px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  background: rgba(255, 253, 248, 0.78);
  border: 1px solid var(--line);
  border-radius: 20px;
  cursor: pointer;
  text-align: left;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.system-button:hover,
.system-button:focus-visible,
.system-button.is-active {
  background: #fff;
  border-color: rgba(23, 132, 111, 0.46);
  box-shadow: 0 17px 40px rgba(23, 32, 50, 0.09);
  transform: translateY(-4px);
}

.system-button__icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  color: var(--navy);
  background: var(--blue-soft);
  border-radius: 15px;
}

.system-button--android .system-button__icon {
  color: #176b59;
  background: #dff4ec;
}

.system-button__icon svg {
  width: 29px;
  height: 29px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.system-button > span:nth-child(2) {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.system-button small {
  color: var(--muted);
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.13em;
}

.system-button strong {
  margin-top: 4px;
  font-size: 13px;
}

.system-button > i {
  font-style: normal;
  font-size: 19px;
}

.detected-device {
  margin-top: 23px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #5e687a;
  font-size: 12px;
}

.detected-device__pulse {
  width: 8px;
  height: 8px;
  display: inline-block;
  background: var(--mint-deep);
  border-radius: 50%;
  box-shadow: 0 0 0 6px rgba(23, 132, 111, 0.1);
}

.hero-stage {
  position: relative;
  min-height: 540px;
  display: grid;
  place-items: center;
}

.stage-halo {
  position: absolute;
  width: 470px;
  height: 470px;
  background:
    radial-gradient(circle, rgba(139, 216, 193, 0.33), rgba(242, 215, 154, 0.17) 45%, transparent 69%);
  border-radius: 50%;
}

.phone-frame {
  position: relative;
  z-index: 2;
  width: min(100%, 445px);
  padding: 17px;
  background: #fff;
  border: 1px solid rgba(23, 32, 50, 0.1);
  border-radius: 44px;
  box-shadow: var(--shadow);
  transform: rotate(-1.4deg);
}

.phone-frame::before {
  position: absolute;
  top: 9px;
  left: 50%;
  width: 88px;
  height: 7px;
  content: "";
  background: #d8dbe2;
  border-radius: 999px;
  transform: translateX(-50%);
}

.phone-frame__bar {
  padding: 19px 7px 11px;
  display: flex;
  justify-content: space-between;
  color: #737b8b;
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.phone-frame__screen {
  min-height: 330px;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    linear-gradient(145deg, #f4f1ea, #fff),
    #fff;
  border: 1px solid rgba(23, 32, 50, 0.08);
  border-radius: 29px;
}

.phone-frame__screen::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: 0.32;
  background-image: radial-gradient(circle, rgba(23, 32, 50, 0.13) 1px, transparent 1px);
  background-size: 17px 17px;
}

.phone-frame__screen img {
  position: relative;
  z-index: 1;
  width: 93%;
  max-height: 340px;
  object-fit: contain;
}

.phone-frame__status {
  padding: 16px 8px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.phone-frame__status span {
  color: var(--muted);
  font-size: 10px;
}

.phone-frame__status strong {
  font-size: 12px;
}

.orbit-card {
  position: absolute;
  z-index: 4;
  width: 173px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  background: rgba(255, 253, 248, 0.96);
  border: 1px solid rgba(23, 32, 50, 0.1);
  border-radius: 18px;
  box-shadow: 0 20px 50px rgba(23, 32, 50, 0.14);
  cursor: pointer;
  text-align: left;
  transition: transform 180ms ease, border-color 180ms ease;
}

.orbit-card:hover,
.orbit-card:focus-visible,
.orbit-card.is-active {
  border-color: rgba(23, 132, 111, 0.55);
  transform: translateY(-5px);
}

.orbit-card span {
  color: var(--mint-deep);
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.orbit-card strong {
  margin-top: 4px;
  font-size: 12px;
}

.orbit-card small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 9px;
}

.orbit-card--android {
  top: 63px;
  left: -10px;
}

.orbit-card--ios {
  right: -9px;
  bottom: 67px;
}

.hero-bottom {
  position: relative;
  z-index: 3;
  margin-bottom: -42px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--navy);
  border-radius: 24px;
  box-shadow: 0 25px 70px rgba(23, 32, 50, 0.18);
}

.hero-bottom > div {
  min-height: 84px;
  padding: 17px 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  color: #fff;
  border-right: 1px solid rgba(255, 255, 255, 0.09);
}

.hero-bottom > div:last-child {
  border-right: 0;
}

.hero-bottom strong {
  color: var(--gold-soft);
  font-size: 12px;
}

.hero-bottom span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 11px;
  font-weight: 700;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 46px;
}

.section-heading--center {
  margin-inline: auto;
  text-align: center;
}

.section-heading--split {
  max-width: none;
  display: grid;
  grid-template-columns: 1fr 0.72fr;
  align-items: end;
  gap: 80px;
}

.section-kicker {
  margin-bottom: 12px;
  display: inline-block;
  color: var(--mint-deep);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.17em;
}

.section-heading h2,
.prepare-intro h2,
.compare-copy h2,
.faq-title h2 {
  margin: 0;
  font-size: clamp(34px, 4.2vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.04em;
}

.section-heading p,
.prepare-intro > p,
.compare-copy > p,
.faq-title > p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.95;
}

.section-heading:not(.section-heading--split) p,
.prepare-intro > p,
.compare-copy > p,
.faq-title > p {
  margin-top: 17px;
}

.device-section {
  padding-top: 146px;
  background: var(--surface);
}

.selector-shell {
  overflow: hidden;
  background: #f5f0e7;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(23, 32, 50, 0.06);
}

.selector-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  background: var(--navy);
}

.selector-tabs button {
  min-height: 92px;
  padding: 18px 25px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: rgba(255, 255, 255, 0.68);
  background: transparent;
  border: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.09);
  cursor: pointer;
  text-align: left;
  transition: background 180ms ease, color 180ms ease;
}

.selector-tabs button:last-child {
  border-right: 0;
}

.selector-tabs button:hover,
.selector-tabs button[aria-selected="true"] {
  color: var(--navy);
  background: var(--gold-soft);
}

.selector-tabs span {
  font-size: 17px;
  font-weight: 900;
}

.selector-tabs small {
  margin-top: 3px;
  font-size: 10px;
}

.selector-panels {
  padding: 28px;
}

.device-panel {
  min-height: 385px;
  display: grid;
  grid-template-columns: 1fr 285px;
  overflow: hidden;
  background: #fff;
  border-radius: 25px;
}

.device-panel[hidden] {
  display: none;
}

.device-panel__main {
  padding: 41px;
}

.device-panel__badge {
  color: var(--mint-deep);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.15em;
}

.device-panel h3 {
  margin: 10px 0 0;
  font-size: 31px;
  letter-spacing: -0.03em;
}

.device-panel__main > p {
  max-width: 680px;
  margin: 15px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.9;
}

.device-panel ul {
  margin: 24px 0 0;
  padding: 22px 0 0;
  display: grid;
  gap: 10px;
  list-style: none;
  border-top: 1px solid var(--line);
}

.device-panel li {
  position: relative;
  padding-left: 21px;
  color: #4d5769;
  font-size: 12px;
}

.device-panel li::before {
  position: absolute;
  top: 0.68em;
  left: 0;
  width: 8px;
  height: 5px;
  content: "";
  border-bottom: 2px solid var(--mint-deep);
  border-left: 2px solid var(--mint-deep);
  transform: translateY(-50%) rotate(-45deg);
}

.device-panel__actions {
  margin-top: 28px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 17px;
}

.primary-link {
  min-height: 49px;
  padding: 12px 19px;
  display: inline-flex;
  align-items: center;
  gap: 15px;
  color: #fff;
  background: var(--navy);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
  transition: transform 180ms ease, background 180ms ease;
}

.primary-link:hover,
.primary-link:focus-visible {
  background: var(--navy-soft);
  transform: translateY(-3px);
}

.text-link {
  color: var(--mint-deep);
  font-size: 11px;
  font-weight: 900;
  border-bottom: 1px solid rgba(23, 132, 111, 0.35);
}

.device-panel__aside {
  padding: 35px 27px;
  display: flex;
  flex-direction: column;
  color: #fff;
  background:
    linear-gradient(150deg, rgba(19, 33, 61, 0.98), rgba(28, 49, 88, 0.94)),
    var(--navy);
}

.device-panel__aside > span {
  color: var(--gold-soft);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.13em;
}

.device-panel__aside > strong {
  margin-top: 10px;
  font-size: 19px;
}

.device-panel__aside > div {
  margin-top: auto;
  padding-top: 25px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.device-panel__aside small {
  color: rgba(255, 255, 255, 0.5);
  font-size: 9px;
}

.device-panel__aside p {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 11px;
}

.device-panel--empty {
  min-height: 385px;
  padding: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  background:
    linear-gradient(135deg, rgba(139, 216, 193, 0.15), rgba(242, 215, 154, 0.17)),
    #fff;
}

.device-panel--empty > div {
  max-width: 620px;
}

.device-panel--empty span:first-child {
  color: var(--mint-deep);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.15em;
}

.device-panel--empty h3 {
  color: var(--ink);
}

.device-panel--empty p {
  margin: 12px 0 0;
  font-size: 13px;
}

.device-panel--empty__arrow {
  color: rgba(23, 32, 50, 0.13);
  font-size: 88px;
  line-height: 1;
}

.brand-guide {
  margin-top: 20px;
  padding: 18px 22px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 22px;
  background: #f2ede3;
  border-left: 4px solid var(--mint-deep);
  border-radius: 4px 16px 16px 4px;
}

.brand-guide strong {
  color: var(--mint-deep);
  font-size: 12px;
}

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

.brand-guide a {
  color: var(--navy);
  font-weight: 900;
  border-bottom: 1px solid var(--gold);
}

.prepare-section {
  color: #fff;
  background:
    linear-gradient(125deg, rgba(19, 33, 61, 0.98), rgba(17, 41, 68, 0.95)),
    var(--navy);
}

.prepare-layout {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  align-items: center;
  gap: 92px;
}

.prepare-intro > p {
  color: rgba(255, 255, 255, 0.62);
}

.progress-box {
  margin-top: 35px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 19px;
}

.progress-box__top {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.progress-box__top span {
  color: rgba(255, 255, 255, 0.62);
  font-size: 11px;
}

.progress-box__top strong {
  color: var(--gold-soft);
  font-size: 12px;
}

.progress-box__top i {
  font-style: normal;
}

.progress-track {
  height: 8px;
  margin-top: 14px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
}

.progress-track span {
  width: 0;
  height: 100%;
  display: block;
  background: linear-gradient(90deg, var(--mint), var(--gold-soft));
  border-radius: inherit;
  transition: width 220ms ease;
}

.progress-box p {
  margin: 10px 0 0;
  color: rgba(255, 255, 255, 0.55);
  font-size: 10px;
}

.prepare-list {
  display: grid;
  gap: 13px;
}

.prepare-item {
  min-height: 90px;
  position: relative;
  padding: 15px 18px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 17px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 18px;
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.prepare-item:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateX(5px);
}

.prepare-item:has(input:checked) {
  background: rgba(139, 216, 193, 0.11);
  border-color: rgba(139, 216, 193, 0.55);
}

.prepare-item input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.prepare-item__number {
  width: 43px;
  height: 43px;
  display: grid;
  place-items: center;
  color: var(--navy);
  background: var(--gold-soft);
  border-radius: 14px;
  font-size: 10px;
  font-weight: 900;
}

.prepare-item__content {
  display: flex;
  flex-direction: column;
}

.prepare-item__content strong {
  font-size: 13px;
}

.prepare-item__content small {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.51);
  font-size: 10px;
}

.prepare-item__mark {
  width: 29px;
  height: 29px;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
}

.prepare-item input:checked ~ .prepare-item__mark {
  background: var(--mint);
  border-color: var(--mint);
}

.prepare-item input:checked ~ .prepare-item__mark::after {
  position: absolute;
  top: 7px;
  left: 7px;
  width: 10px;
  height: 6px;
  content: "";
  border-bottom: 2px solid var(--navy);
  border-left: 2px solid var(--navy);
  transform: rotate(-45deg);
}

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

.timeline {
  position: relative;
  max-width: 940px;
  margin: 0 auto;
}

.timeline::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 210px;
  width: 1px;
  content: "";
  background: linear-gradient(var(--mint-deep), rgba(23, 132, 111, 0.08));
}

.timeline-item {
  min-height: 175px;
  display: grid;
  grid-template-columns: 175px 70px 1fr;
  align-items: start;
}

.timeline-item__meta {
  padding-top: 22px;
  display: flex;
  flex-direction: column;
  text-align: right;
}

.timeline-item__meta strong {
  color: var(--mint-deep);
  font-size: 9px;
  letter-spacing: 0.14em;
}

.timeline-item__meta span {
  margin-top: 5px;
  color: var(--muted);
  font-size: 11px;
}

.timeline-item__dot {
  width: 18px;
  height: 18px;
  position: relative;
  z-index: 2;
  margin: 30px auto 0;
  background: var(--gold-soft);
  border: 5px solid var(--paper);
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--mint-deep);
}

.timeline-item__card {
  padding: 23px 26px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 19px;
  box-shadow: 0 12px 32px rgba(23, 32, 50, 0.04);
}

.timeline-item__card h3 {
  margin: 0;
  font-size: 19px;
}

.timeline-item__card p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.9;
}

.steps-links {
  max-width: 940px;
  margin: 25px auto 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.steps-links a {
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 17px;
  transition: transform 180ms ease, border-color 180ms ease;
}

.steps-links a:hover,
.steps-links a:focus-visible {
  border-color: rgba(23, 132, 111, 0.48);
  transform: translateY(-4px);
}

.steps-links span {
  color: var(--muted);
  font-size: 10px;
}

.steps-links strong {
  margin-top: 5px;
  font-size: 12px;
}

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

.compare-layout {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  align-items: center;
  gap: 80px;
}

.outline-link {
  margin-top: 27px;
  padding: 11px 17px;
  display: inline-flex;
  color: var(--navy);
  border: 1px solid rgba(23, 32, 50, 0.25);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 900;
}

.compare-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
}

.compare-cards article {
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 22px;
}

.compare-card__top {
  min-height: 115px;
  padding: 25px;
  display: flex;
  flex-direction: column;
  color: #fff;
  background: var(--navy);
}

.compare-cards article:last-child .compare-card__top {
  color: var(--navy);
  background: var(--gold-soft);
}

.compare-card__top span {
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.compare-card__top strong {
  margin-top: 8px;
  font-size: 20px;
}

.compare-cards dl {
  margin: 0;
  padding: 13px 23px 23px;
}

.compare-cards dl > div {
  padding: 13px 0;
  display: grid;
  grid-template-columns: 53px 1fr;
  gap: 12px;
  border-bottom: 1px solid var(--line);
}

.compare-cards dl > div:last-child {
  border-bottom: 0;
}

.compare-cards dt {
  color: var(--mint-deep);
  font-size: 10px;
  font-weight: 900;
}

.compare-cards dd {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
}

.problems-section {
  background: var(--surface);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
}

.problem-card {
  min-height: 300px;
  padding: 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #f6f1e8;
  border: 1px solid var(--line);
  border-radius: 22px;
}

.problem-card::after {
  position: absolute;
  right: -45px;
  bottom: -45px;
  width: 125px;
  height: 125px;
  content: "";
  background: rgba(139, 216, 193, 0.14);
  border-radius: 50%;
}

.problem-card--wide {
  grid-column: span 2;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 22px;
  color: #fff;
  background: var(--navy);
}

.problem-card__index {
  position: relative;
  z-index: 1;
  color: var(--mint-deep);
  font-size: 10px;
  font-weight: 900;
}

.problem-card--wide .problem-card__index {
  width: 47px;
  height: 47px;
  display: grid;
  place-items: center;
  color: var(--navy);
  background: var(--gold-soft);
  border-radius: 15px;
}

.problem-card > span,
.problem-card--wide > div:nth-child(2) > span {
  margin-top: 20px;
  color: var(--mint-deep);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.problem-card--wide > div:nth-child(2) > span {
  margin-top: 0;
  color: var(--gold-soft);
}

.problem-card h3 {
  position: relative;
  z-index: 1;
  margin: 9px 0 0;
  font-size: 18px;
}

.problem-card p {
  position: relative;
  z-index: 1;
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.9;
}

.problem-card--wide p {
  color: rgba(255, 255, 255, 0.65);
}

.problem-card a {
  position: relative;
  z-index: 1;
  margin-top: auto;
  padding-top: 18px;
  color: var(--mint-deep);
  font-size: 10px;
  font-weight: 900;
}

.problem-card--wide > a {
  grid-column: 2;
  color: var(--gold-soft);
}

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

.faq-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  align-items: start;
  gap: 88px;
}

.faq-title {
  position: sticky;
  top: calc(var(--header-height) + 35px);
}

.faq-download {
  margin-top: 27px;
  padding: 12px 18px;
  display: inline-flex;
  color: #fff;
  background: var(--navy);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 900;
}

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

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

.faq-list summary {
  min-height: 84px;
  padding: 20px 2px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  list-style: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 800;
}

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

.faq-list summary i {
  width: 31px;
  height: 31px;
  position: relative;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.faq-list summary i::before,
.faq-list summary i::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 11px;
  height: 1px;
  content: "";
  background: var(--navy);
  transform: translate(-50%, -50%);
}

.faq-list summary i::after {
  transform: translate(-50%, -50%) rotate(90deg);
  transition: transform 180ms ease;
}

.faq-list details[open] summary i {
  background: var(--gold-soft);
  border-color: var(--gold-soft);
}

.faq-list details[open] summary i::after {
  transform: translate(-50%, -50%) rotate(0);
}

.faq-list details > div {
  padding: 0 55px 24px 2px;
}

.faq-list p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.95;
}

.final-cta {
  padding: 78px 0;
  color: #fff;
  background:
    linear-gradient(115deg, rgba(19, 33, 61, 0.99), rgba(24, 73, 78, 0.93)),
    var(--navy);
}

.final-cta__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 55px;
}

.final-cta__copy > span {
  color: var(--gold-soft);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.15em;
}

.final-cta h2 {
  max-width: 700px;
  margin: 10px 0 0;
  font-size: clamp(31px, 4.2vw, 49px);
  line-height: 1.17;
  letter-spacing: -0.04em;
}

.final-cta p {
  max-width: 670px;
  margin: 13px 0 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
}

.final-cta__buttons {
  display: grid;
  gap: 11px;
}

.final-cta__buttons a {
  min-width: 225px;
  min-height: 66px;
  padding: 13px 18px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: var(--navy);
  background: #fff;
  border-radius: 17px;
  transition: transform 180ms ease;
}

.final-cta__buttons a:last-child {
  background: var(--gold-soft);
}

.final-cta__buttons a:hover,
.final-cta__buttons a:focus-visible {
  transform: translateX(5px);
}

.final-cta__buttons span {
  color: var(--mint-deep);
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.final-cta__buttons strong {
  margin-top: 3px;
  font-size: 13px;
}

.site-footer {
  color: rgba(255, 255, 255, 0.66);
  background: #091120;
}

.footer-main {
  padding-top: 65px;
  padding-bottom: 50px;
  display: grid;
  grid-template-columns: 1.3fr 0.7fr 0.7fr 1fr;
  gap: 48px;
}

.footer-brand img {
  width: 120px;
  height: 46px;
  object-fit: contain;
  object-position: left center;
  filter: brightness(1.13);
}

.footer-brand p {
  max-width: 330px;
  margin: 17px 0 0;
  font-size: 11px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer-nav strong {
  margin-bottom: 5px;
  color: #fff;
  font-size: 11px;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.55);
  font-size: 10px;
}

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

.footer-action {
  padding: 18px;
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 17px;
}

.footer-action span {
  color: var(--gold-soft);
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.footer-action strong {
  margin-top: 6px;
  color: #fff;
  font-size: 12px;
}

.footer-action a {
  margin-top: 12px;
  color: var(--mint);
  font-size: 10px;
  font-weight: 900;
}

.footer-bottom {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-bottom p {
  margin: 0;
  font-size: 9px;
}

.mobile-bar {
  position: fixed;
  right: 12px;
  bottom: 12px;
  left: 12px;
  z-index: 1001;
  padding: 8px;
  display: none;
  grid-template-columns: repeat(2, 1fr);
  gap: 7px;
  color: #fff;
  background: rgba(9, 17, 32, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.26);
  backdrop-filter: blur(15px);
}

.mobile-bar button {
  min-height: 49px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: rgba(255, 255, 255, 0.07);
  border: 0;
  border-radius: 12px;
  cursor: pointer;
}

.mobile-bar button:last-child {
  color: var(--navy);
  background: var(--gold-soft);
}

.mobile-bar span {
  font-size: 8px;
}

.mobile-bar strong {
  margin-top: 2px;
  font-size: 11px;
}

:focus-visible {
  outline: 3px solid rgba(23, 132, 111, 0.45);
  outline-offset: 3px;
}

@media (max-width: 1080px) {
  .site-nav {
    gap: 17px;
  }

  .hero-inner {
    gap: 42px;
  }

  .orbit-card--android {
    left: 0;
  }

  .orbit-card--ios {
    right: 0;
  }

  .prepare-layout {
    gap: 55px;
  }

  .compare-layout {
    gap: 45px;
  }

  .footer-main {
    gap: 30px;
  }
}

@media (max-width: 920px) {
  :root {
    --header-height: 68px;
  }

  .section {
    padding: 84px 0;
  }

  .brand > span,
  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: grid;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    bottom: 0;
    left: 0;
    margin: 0;
    padding: 31px 24px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 3px;
    visibility: hidden;
    background: rgba(255, 253, 248, 0.99);
    opacity: 0;
    transform: translateY(-15px);
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
  }

  .site-nav.is-open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 14px 4px;
    border-bottom: 1px solid var(--line);
  }

  .hero-inner {
    padding-top: 70px;
    padding-bottom: 120px;
    grid-template-columns: 1fr;
    gap: 65px;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero-stage {
    width: min(100%, 590px);
    margin-inline: auto;
  }

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

  .hero-bottom > div:nth-child(2) {
    border-right: 0;
  }

  .hero-bottom > div:nth-child(-n + 2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  }

  .section-heading--split,
  .prepare-layout,
  .compare-layout,
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 43px;
  }

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

  .device-panel__aside {
    min-height: 210px;
  }

  .prepare-intro {
    max-width: 720px;
  }

  .compare-cards {
    max-width: 720px;
  }

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

  .faq-title {
    position: static;
  }

  .final-cta__inner {
    grid-template-columns: 1fr;
    gap: 31px;
  }

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

  .footer-main {
    grid-template-columns: 1.2fr 1fr 1fr;
  }

  .footer-action {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .section {
    padding: 70px 0;
  }

  .brand img {
    width: 96px;
    height: 38px;
  }

  .hero-inner {
    min-height: auto;
    padding-top: 58px;
    padding-bottom: 110px;
  }

  .hero h1 {
    font-size: 43px;
  }

  .hero h1 span {
    font-size: 24px;
  }

  .hero-lead {
    font-size: 13px;
  }

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

  .hero-stage {
    min-height: 470px;
  }

  .stage-halo {
    width: 350px;
    height: 350px;
  }

  .phone-frame {
    width: min(100%, 370px);
    border-radius: 34px;
    transform: none;
  }

  .phone-frame__screen {
    min-height: 260px;
  }

  .orbit-card {
    width: 145px;
    padding: 11px 12px;
  }

  .orbit-card--android {
    top: 32px;
    left: -2px;
  }

  .orbit-card--ios {
    right: -2px;
    bottom: 28px;
  }

  .hero-bottom {
    margin-bottom: -54px;
  }

  .hero-bottom > div {
    min-height: 72px;
    padding: 14px;
  }

  .section-heading h2,
  .prepare-intro h2,
  .compare-copy h2,
  .faq-title h2 {
    font-size: 34px;
  }

  .section-heading--split {
    gap: 18px;
  }

  .selector-tabs button {
    min-height: 80px;
    padding: 14px;
  }

  .selector-tabs span {
    font-size: 14px;
  }

  .selector-panels {
    padding: 12px;
  }

  .device-panel__main {
    padding: 26px 20px;
  }

  .device-panel h3 {
    font-size: 26px;
  }

  .device-panel__actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .device-panel__aside {
    padding: 27px 21px;
  }

  .device-panel--empty {
    min-height: 320px;
    padding: 28px 22px;
  }

  .device-panel--empty__arrow {
    display: none;
  }

  .brand-guide {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .prepare-item {
    grid-template-columns: auto 1fr;
  }

  .prepare-item__mark {
    grid-column: 2;
    justify-self: end;
    margin-top: -38px;
  }

  .timeline::before {
    left: 17px;
  }

  .timeline-item {
    min-height: 0;
    margin-bottom: 18px;
    grid-template-columns: 36px 1fr;
  }

  .timeline-item__meta {
    display: none;
  }

  .timeline-item__dot {
    grid-column: 1;
    width: 16px;
    height: 16px;
    margin-top: 28px;
  }

  .timeline-item__card {
    grid-column: 2;
    padding: 21px;
  }

  .steps-links,
  .compare-cards,
  .problem-grid,
  .final-cta__buttons {
    grid-template-columns: 1fr;
  }

  .problem-card--wide {
    grid-column: span 1;
    grid-template-columns: 1fr;
  }

  .problem-card--wide > a {
    grid-column: auto;
  }

  .faq-list details > div {
    padding-right: 3px;
  }

  .final-cta {
    padding-bottom: 100px;
  }

  .footer-main {
    padding-bottom: 95px;
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand,
  .footer-action {
    grid-column: 1 / -1;
  }

  .footer-bottom {
    padding: 18px 0 95px;
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }

  .mobile-bar {
    display: grid;
  }
}

@media (max-width: 390px) {
  .hero h1 {
    font-size: 38px;
  }

  .hero h1 span {
    font-size: 21px;
  }

  .orbit-card {
    width: 132px;
  }

  .orbit-card small {
    display: none;
  }

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

  .hero-bottom > div {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  }

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

  .footer-brand,
  .footer-action {
    grid-column: auto;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}


/* QQPK_SAFE_01_33_START */

/*
   QQPK 01-33 图片基础安全补丁
*/

html,
body {
    max-width: 100%;
    overflow-x: hidden;
}

main {
    max-width: 100%;
    overflow-x: clip;
}

main figure,
main picture {
    max-width: 100%;
}

main img {
    max-width: 100%;
}

/*
   客户端截图和安装步骤图优先完整显示。
*/

main figure img,
main [class*="stage"] img,
main [class*="screen"] img,
main [class*="preview"] img,
main [class*="visual"] img,
main [class*="gallery"] img,
main [class*="step"] img {
    object-fit: contain;
}

/* QQPK_SAFE_01_33_END */