:root {
  --green: #44c764;
  --green-deep: #079452;
  --green-dark: #092619;
  --green-ink: #061a12;
  --charcoal: #03140d;
  --panel-dark: #071e15;
  --yellow: #ffe100;
  --yellow-soft: #fff7a8;
  --paper: #f5f8f5;
  --white: #ffffff;
  --ink: #0d1f16;
  --muted: #617267;
  --line: #d7e6dc;
  --line-dark: rgba(255, 255, 255, 0.18);
  --shadow-soft: 0 22px 58px rgba(9, 45, 26, 0.12);
  --shadow-deep: 0 42px 120px rgba(0, 0, 0, 0.40);
  --shadow-crisp: 0 1px 0 rgba(255, 255, 255, 0.92) inset;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(3, 20, 13, 0.04), transparent 520px),
    var(--paper);
  font-family:
    "Microsoft YaHei",
    "PingFang SC",
    "Noto Sans CJK SC",
    Arial,
    sans-serif;
  letter-spacing: 0;
}

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

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

.site-header {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 40;
  width: min(1180px, calc(100% - 40px));
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 14px 0 18px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(236, 248, 241, 0.84));
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 8px;
  box-shadow:
    0 28px 80px rgba(3, 20, 13, 0.20),
    var(--shadow-crisp);
  transform: translateX(-50%);
  backdrop-filter: blur(18px);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 225, 0, 0.14), transparent 30%),
    linear-gradient(270deg, rgba(7, 148, 82, 0.10), transparent 38%);
  pointer-events: none;
}

.site-header > * {
  position: relative;
  z-index: 1;
}

.brand,
.footer-brand,
.h5-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
}

.brand img,
.footer-brand img,
.h5-brand img {
  width: 38px;
  height: 38px;
  object-fit: contain;
}

.brand span,
.footer-brand span,
.h5-brand span {
  font-size: 21px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  color: #31493b;
  font-size: 15px;
  font-weight: 800;
}

.nav-links a,
.header-download,
.primary-action,
.secondary-action,
.download-button,
.mobile-download-bar a,
.app-download-card,
.h5-topbar > a:last-child {
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background-color 160ms ease,
    color 160ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--green-deep);
}

.header-download,
.primary-action,
.download-button.main {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  color: #10170d;
  background: var(--yellow);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 8px;
  box-shadow:
    0 20px 38px rgba(255, 225, 0, 0.26),
    inset 0 -2px 0 rgba(0, 0, 0, 0.08);
  font-weight: 900;
}

.header-download:hover,
.primary-action:hover,
.secondary-action:hover,
.download-button:hover,
.mobile-download-bar a:hover,
.app-download-card:hover,
.h5-topbar > a:last-child:hover,
.header-download:focus-visible,
.primary-action:focus-visible,
.secondary-action:focus-visible,
.download-button:focus-visible,
.mobile-download-bar a:focus-visible,
.app-download-card:focus-visible,
.h5-topbar > a:last-child:focus-visible {
  transform: translateY(-2px);
}

.premium-hero {
  position: relative;
  overflow: hidden;
  min-height: 840px;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(450px, 1.12fr);
  gap: 62px;
  align-items: center;
  padding: 146px max(32px, calc((100vw - 1180px) / 2)) 104px;
  color: var(--white);
  background:
    linear-gradient(116deg, rgba(255, 225, 0, 0.08) 0%, transparent 24%),
    linear-gradient(150deg, #02120c 0%, #08251a 42%, #086b3f 100%);
  isolation: isolate;
  perspective: 1200px;
}

.premium-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(116deg, transparent 0 55%, rgba(255, 255, 255, 0.08) 55% 55.22%, transparent 55.22%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: auto, 76px 76px, 76px 76px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 82%);
  z-index: 0;
}

.premium-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 148px;
  background:
    linear-gradient(180deg, transparent, rgba(245, 248, 245, 0.98) 76%),
    linear-gradient(90deg, transparent, rgba(255, 225, 0, 0.16), transparent);
  z-index: 1;
}

.hero-copy-block,
.premium-stage {
  position: relative;
  z-index: 2;
}

.hero-copy-block::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 6px;
  width: 5px;
  height: 128px;
  background: linear-gradient(180deg, var(--yellow), rgba(68, 199, 100, 0.22));
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(255, 225, 0, 0.22);
}

.eyebrow {
  margin: 0 0 16px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
  font-weight: 900;
  text-transform: uppercase;
}

.eyebrow.dark {
  color: var(--green-deep);
}

.premium-hero h1 {
  width: min(600px, 100%);
  margin: 0;
  color: var(--white);
  font-size: 70px;
  line-height: 1.04;
  font-weight: 900;
  text-shadow: 0 30px 70px rgba(0, 0, 0, 0.44);
}

.hero-copy {
  width: min(610px, 100%);
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 19px;
  line-height: 1.88;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.primary-action,
.secondary-action,
.download-button {
  min-width: 174px;
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 26px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 900;
}

.secondary-action {
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.06));
  border: 1px solid rgba(255, 255, 255, 0.34);
  box-shadow:
    0 18px 40px rgba(0, 0, 0, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.20);
  backdrop-filter: blur(18px);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.hero-meta span {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 900;
  backdrop-filter: blur(14px);
}

.premium-stage {
  min-height: 610px;
  transform-style: preserve-3d;
}

.premium-stage::before {
  content: "";
  position: absolute;
  left: 76px;
  right: 14px;
  bottom: 14px;
  height: 250px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.03)),
    linear-gradient(90deg, rgba(255, 225, 0, 0.12), transparent 55%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  box-shadow:
    0 38px 120px rgba(0, 0, 0, 0.26),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
  transform: rotateX(64deg) rotateZ(-7deg);
  transform-origin: center bottom;
}

.premium-stage::after {
  content: "";
  position: absolute;
  top: 34px;
  right: 8px;
  width: 76%;
  height: 78%;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.14) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.11) 1px, transparent 1px);
  background-size: 46px 46px;
  opacity: 0.38;
  transform: rotateY(-18deg) rotateZ(2deg);
  mask-image: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.9), transparent);
  pointer-events: none;
}

.stage-light {
  position: absolute;
  left: 50%;
  bottom: 18px;
  width: 580px;
  height: 150px;
  background: rgba(0, 0, 0, 0.32);
  filter: blur(34px);
  transform: translateX(-38%) rotateX(68deg) rotateZ(-8deg);
}

.phone-frame {
  position: relative;
  z-index: 2;
  overflow: hidden;
  background: #060d09;
  border: 11px solid #07110c;
  border-radius: 30px;
  box-shadow:
    var(--shadow-deep),
    inset 0 2px 0 rgba(255, 255, 255, 0.18);
}

.phone-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(125deg, rgba(255, 255, 255, 0.24), transparent 22%, transparent 78%, rgba(255, 255, 255, 0.10));
  pointer-events: none;
}

.phone-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.main-phone {
  position: absolute;
  right: 54px;
  top: 24px;
  width: 318px;
  height: 648px;
  transform: rotateY(-14deg) rotateX(5deg) rotateZ(1deg);
}

.back-phone {
  position: absolute;
  right: 346px;
  top: 118px;
  width: 246px;
  height: 502px;
  opacity: 0.98;
  transform: rotateY(18deg) rotateX(7deg) rotateZ(-5deg);
}

.floating-card {
  position: absolute;
  z-index: 5;
  min-width: 168px;
  padding: 16px 18px;
  color: var(--white);
  background:
    linear-gradient(145deg, rgba(7, 30, 21, 0.92), rgba(6, 20, 13, 0.72));
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  box-shadow:
    0 28px 64px rgba(0, 0, 0, 0.40),
    inset 0 1px 0 rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(18px);
}

.floating-card span {
  width: 46px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  color: #12180c;
  background: var(--yellow);
  border-radius: 8px;
  font-weight: 900;
}

.floating-card strong {
  display: block;
  font-size: 17px;
}

.ios-float {
  right: 46px;
  top: 70px;
}

.android-float {
  left: 44px;
  bottom: 78px;
}

.trust-strip {
  position: relative;
  z-index: 5;
  width: min(1180px, calc(100% - 40px));
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: -56px auto 0;
  background: rgba(7, 30, 21, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  box-shadow:
    0 34px 92px rgba(3, 20, 13, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.14);
  overflow: hidden;
  backdrop-filter: blur(18px);
}

.trust-strip div {
  position: relative;
  min-height: 126px;
  padding: 30px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.05));
}

.trust-strip div::before {
  content: "";
  position: absolute;
  left: 30px;
  top: 22px;
  width: 38px;
  height: 4px;
  background: var(--yellow);
  border-radius: 8px;
}

.trust-strip strong {
  display: block;
  margin: 16px 0 10px;
  color: var(--white);
  font-size: 23px;
}

.trust-strip span,
.section-heading p,
.download-panel p,
.steps p,
.support-card p,
.h5-download p,
.h5-points p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.76;
}

.trust-strip span {
  color: rgba(255, 255, 255, 0.72);
}

.download-center,
.preview-section,
.guide-section,
.support-section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding-top: 92px;
}

.section-heading {
  max-width: 740px;
  margin-bottom: 30px;
}

.section-heading.split {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(330px, 0.55fr);
  gap: 44px;
  align-items: end;
}

.section-heading h2,
.support-card h2,
.h5-download h1 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 44px;
  line-height: 1.16;
  font-weight: 900;
}

.download-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.download-panel,
.steps article,
.support-card,
.h5-points article,
.app-download-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
}

.download-panel {
  position: relative;
  overflow: hidden;
  min-height: 336px;
  padding: 32px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(243, 250, 246, 0.94));
  box-shadow:
    0 28px 78px rgba(9, 45, 26, 0.13),
    var(--shadow-crisp);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.download-panel:hover {
  transform: translateY(-4px);
  box-shadow:
    0 36px 94px rgba(9, 45, 26, 0.18),
    var(--shadow-crisp);
}

.download-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 6px;
  background: linear-gradient(90deg, var(--green), var(--green-deep));
}

.platform-android::before {
  background: linear-gradient(90deg, var(--yellow), var(--green));
}

.download-panel::after {
  content: "";
  position: absolute;
  right: -28px;
  bottom: -84px;
  width: 244px;
  height: 244px;
  background: linear-gradient(135deg, rgba(8, 148, 82, 0.08), rgba(255, 225, 0, 0.08));
  border: 1px solid rgba(8, 148, 82, 0.16);
  border-radius: 8px;
  transform: rotate(16deg);
}

.panel-title {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  gap: 18px;
}

.platform-badge {
  flex: 0 0 auto;
  width: 64px;
  height: 64px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  background: var(--green-deep);
  border-radius: 8px;
  font-weight: 900;
}

.ios-badge {
  color: var(--ink);
  background: #f4f7f6;
  border: 1px solid var(--line);
}

.platform-badge.yellow {
  color: #161d0c;
  background: var(--yellow);
}

.panel-title h3 {
  margin: 0 0 8px;
  font-size: 30px;
  line-height: 1.2;
}

.version-list {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 34px 0 22px;
}

.version-list div {
  min-height: 78px;
  padding: 15px 16px;
  background: rgba(236, 247, 241, 0.76);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.78);
}

.version-list dt {
  margin: 0 0 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
}

.version-list dd {
  margin: 0;
  color: var(--ink);
  font-size: 16px;
  font-weight: 900;
}

.download-button {
  position: relative;
  z-index: 1;
}

.android-main {
  color: var(--white);
  background: linear-gradient(135deg, var(--green-deep), #08683f);
  box-shadow:
    0 16px 30px rgba(7, 148, 82, 0.22),
    inset 0 -2px 0 rgba(0, 0, 0, 0.10);
}

.screen-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  perspective: 1200px;
}

.screen-card {
  margin: 0;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow:
    0 28px 76px rgba(9, 45, 26, 0.13),
    var(--shadow-crisp);
}

.screen-card:nth-child(1) {
  transform: rotateY(4deg);
}

.screen-card:nth-child(2) {
  transform: translateY(-22px) rotateY(-3deg);
  box-shadow:
    0 36px 96px rgba(12, 48, 28, 0.20),
    var(--shadow-crisp);
}

.screen-card:nth-child(3) {
  transform: rotateY(3deg);
}

.screen-card:nth-child(4) {
  transform: rotateY(-4deg);
}

.screen-card img {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: top center;
  background: #edf3ef;
}

.screen-card figcaption {
  padding: 16px 18px;
  font-weight: 900;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.steps article {
  min-height: 230px;
  padding: 28px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(248, 252, 249, 0.94));
  box-shadow:
    0 24px 64px rgba(9, 45, 26, 0.10),
    var(--shadow-crisp);
}

.steps span {
  display: inline-flex;
  margin-bottom: 30px;
  color: var(--green-deep);
  font-size: 32px;
  font-weight: 900;
}

.steps h3,
.h5-points h2 {
  margin: 0 0 12px;
  font-size: 24px;
}

.support-section {
  padding-bottom: 86px;
}

.support-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding: 36px;
  background:
    linear-gradient(120deg, rgba(255, 225, 0, 0.14), transparent 36%),
    linear-gradient(135deg, #071e15 0%, #0b4b31 62%, #087145 100%);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow:
    0 34px 94px rgba(3, 20, 13, 0.20),
    inset 0 1px 0 rgba(255, 255, 255, 0.16);
}

.support-card .eyebrow.dark {
  color: var(--yellow);
}

.support-card h2 {
  color: var(--white);
}

.support-card p {
  color: rgba(255, 255, 255, 0.78);
}

.record-info {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.record-info span {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 900;
}

.site-footer {
  width: min(1180px, calc(100% - 40px));
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  gap: 24px;
  align-items: center;
  margin: 0 auto;
  padding: 30px 0 38px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer-brand {
  color: var(--ink);
}

.footer-brand img {
  width: 30px;
  height: 30px;
}

.footer-links {
  display: flex;
  gap: 18px;
  font-weight: 900;
}

.company-info {
  display: grid;
  gap: 5px;
  justify-self: center;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
  text-align: center;
}

.mobile-download-bar {
  display: none;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 70;
  max-width: min(360px, calc(100% - 48px));
  padding: 14px 18px;
  color: var(--white);
  background: var(--green-dark);
  border-radius: 8px;
  box-shadow: 0 18px 34px rgba(16, 36, 22, 0.22);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition:
    opacity 160ms ease,
    transform 160ms ease;
}

.toast.visible {
  opacity: 1;
  transform: translateY(0);
}

.h5-page {
  min-height: 100vh;
  position: relative;
  background:
    linear-gradient(118deg, rgba(255, 225, 0, 0.10), transparent 38%),
    linear-gradient(180deg, #03140d 0%, #08623c 46%, #eff8f2 84%);
}

.h5-page::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 62%);
  pointer-events: none;
}

.h5-shell {
  position: relative;
  z-index: 1;
  width: min(560px, calc(100% - 32px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 24px 0 38px;
}

.h5-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 60px;
  padding: 0 10px 0 0;
  border-radius: 8px;
}

.h5-brand {
  color: var(--white);
}

.h5-topbar > a:last-child {
  min-width: 96px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  background: var(--white);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 900;
}

.h5-download {
  padding-top: 62px;
  color: var(--white);
}

.h5-download h1 {
  color: var(--white);
  font-size: 42px;
}

.h5-download p {
  color: rgba(255, 255, 255, 0.88);
  font-weight: 700;
}

.mobile-app-cards {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.app-download-card {
  display: grid;
  grid-template-columns: 68px 1fr;
  column-gap: 16px;
  align-items: center;
  min-height: 98px;
  padding: 18px;
  color: var(--ink);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(240, 248, 244, 0.94));
  box-shadow:
    0 24px 70px rgba(3, 20, 13, 0.20),
    var(--shadow-crisp);
}

.app-system {
  grid-row: span 2;
  width: 62px;
  height: 62px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  background: var(--green-deep);
  border-radius: 8px;
  font-weight: 900;
}

.apk-card .app-system {
  color: var(--ink);
  background: var(--yellow);
}

.app-download-card strong {
  font-size: 20px;
}

.app-download-card em {
  color: var(--muted);
  font-style: normal;
}

.h5-product-preview {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 18px;
  align-items: center;
  margin-top: 36px;
}

.h5-phone {
  width: 230px;
  height: 468px;
  margin: 0;
}

.h5-points {
  display: grid;
  gap: 14px;
}

.h5-points article {
  padding: 22px;
  box-shadow:
    0 24px 64px rgba(9, 45, 26, 0.11),
    var(--shadow-crisp);
}

.h5-footer {
  position: relative;
  z-index: 1;
  width: min(560px, calc(100% - 32px));
  display: grid;
  gap: 8px;
  margin: 0 auto;
  padding: 0 0 34px;
  color: #5c7064;
  font-size: 14px;
  line-height: 1.5;
  text-align: center;
}

@media (max-width: 980px) {
  .nav-links {
    display: none;
  }

  .premium-hero {
    grid-template-columns: 1fr;
    min-height: auto;
    gap: 34px;
    padding: 122px 22px 68px;
  }

  .premium-hero h1 {
    font-size: 52px;
  }

  .premium-stage {
    min-height: 520px;
  }

  .main-phone {
    left: 50%;
    right: auto;
    width: 260px;
    height: 530px;
    transform: translateX(-32%) rotateY(-8deg) rotateX(4deg);
  }

  .back-phone {
    left: 50%;
    right: auto;
    top: 92px;
    width: 204px;
    height: 416px;
    transform: translateX(-92%) rotateY(12deg) rotateX(4deg) rotateZ(-3deg);
  }

  .floating-card {
    display: none;
  }

  .trust-strip,
  .download-layout,
  .section-heading.split,
  .steps,
  .support-card,
  .h5-product-preview {
    grid-template-columns: 1fr;
  }

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

  .screen-card:nth-child(n) {
    transform: none;
  }

  .site-footer {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .company-info {
    justify-self: start;
    text-align: left;
  }
}

@media (max-width: 620px) {
  .site-header {
    top: 10px;
    width: calc(100% - 20px);
    height: 58px;
    padding-left: 12px;
  }

  .brand img,
  .h5-brand img {
    width: 34px;
    height: 34px;
  }

  .brand span,
  .h5-brand span {
    font-size: 18px;
  }

  .header-download {
    min-height: 38px;
    padding: 0 16px;
    font-size: 14px;
  }

  .premium-hero {
    padding: 112px 16px 58px;
  }

  .premium-hero h1 {
    font-size: 42px;
  }

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

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

  .primary-action,
  .secondary-action,
  .download-button {
    width: 100%;
    min-width: 0;
  }

  .premium-stage {
    min-height: 430px;
  }

  .main-phone {
    width: 216px;
    height: 440px;
    transform: translateX(-28%) rotateY(-7deg) rotateX(3deg);
  }

  .back-phone {
    width: 168px;
    height: 342px;
    top: 78px;
    transform: translateX(-92%) rotateY(10deg) rotateX(3deg) rotateZ(-3deg);
  }

  .trust-strip,
  .download-center,
  .preview-section,
  .guide-section,
  .support-section,
  .site-footer {
    width: calc(100% - 32px);
  }

  .trust-strip div {
    min-height: 106px;
    padding: 24px;
  }

  .section-heading h2,
  .support-card h2,
  .h5-download h1 {
    font-size: 34px;
  }

  .download-panel,
  .steps article,
  .support-card {
    padding: 24px 22px;
  }

  .panel-title,
  .version-list {
    grid-template-columns: 1fr;
    display: grid;
  }

  .screen-gallery {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .screen-card figcaption {
    padding: 12px;
    font-size: 14px;
  }

  .support-section {
    padding-bottom: 74px;
  }

  .site-footer {
    padding-bottom: 98px;
  }

  .mobile-download-bar {
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: 12px;
    z-index: 50;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 16px 34px rgba(15, 50, 30, 0.18);
    backdrop-filter: blur(16px);
  }

  .mobile-download-bar a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-weight: 900;
  }

  .mobile-download-bar a:first-child {
    background: var(--yellow);
  }

  .mobile-download-bar a:last-child {
    color: var(--white);
    background: var(--green-deep);
  }

  .h5-shell {
    width: calc(100% - 28px);
  }

  .h5-download {
    padding-top: 48px;
  }

  .app-download-card {
    grid-template-columns: 62px 1fr;
  }

  .h5-phone {
    width: min(260px, 100%);
    height: 520px;
    margin: 0 auto;
  }
}