:root {
  --ink:#101f46;
  --muted:#53617a;
  --line:#dde4ef;
  --accent:#193665;
  --paper:#f5f8fc;
  --content:1160px;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;
  color:var(--ink);
  background:#fff;
  font-synthesis:none;
}

* {
  box-sizing:border-box;
}

html {
  scroll-behavior:smooth;
  scroll-padding-top:24px;
}

body {
  margin:0;
}

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

button {
  font:inherit;
  cursor:pointer;
}

a {
  color:inherit;
}

a,button {
  touch-action:manipulation;
}

svg {
  display:block;
  width:24px;
  height:24px;
  flex-shrink:0;
}

img {
  max-width:100%;
}

h1,h2,h3,h4,p {
  margin:0;
}

a:focus-visible,button:focus-visible,summary:focus-visible {
  outline:3px solid #286bc1;
  outline-offset:5px;
}

section[id],article[id],#download {
  scroll-margin-top:32px;
}

.wrap {
  width:min(var(--content),calc(100% - 64px));
  margin-inline:auto;
}

.section {
  padding-block:100px;
}

.eyebrow {
  font-size:12px;
  font-weight:700;
  line-height:1.7;
  letter-spacing:.15em;
  color:#566b8d;
}

.skip-link {
  position:fixed;
  left:16px;
  top:-80px;
  z-index:1100;
  padding:14px 20px;
  border-radius:8px;
  background:var(--ink);
  color:white;
}

.skip-link:focus {
  top:16px;
}

.site-header {
  min-height:94px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}

.brand {
  display:flex;
  gap:12px;
  align-items:center;
  text-decoration:none;
}

.brand img {
  border-radius:11px;
  width:44px;
  height:44px;
}

.brand>span {
  font-size:23px;
  font-weight:800;
  letter-spacing:.035em;
  line-height:1.15;
}

.brand small {
  display:block;
  margin-top:4px;
  font-size:8px;
  letter-spacing:.17em;
  color:var(--muted);
  font-weight:600;
}

.site-header nav {
  display:flex;
  align-items:center;
  gap:22px;
}

.site-header nav > a {
  position:relative;
  min-height:44px;
  padding:12px 0;
  color:#687286;
  text-decoration:none;
  font-size:14px;
  font-weight:600;
}

.site-header nav > a::after {
  content:"";
  position:absolute;
  left:0;
  right:100%;
  bottom:-7px;
  height:2px;
  border-radius:2px;
  background:#0878ce;
  transition:right .2s ease;
}

.site-header nav > a:hover {
  color:#173247;
}

.site-header nav > a:hover::after {
  right:0;
}

.site-header nav > .nav-download {
  color:#0878ce;
}

.site-header nav > .nav-download svg {
  display:none;
}

.site-header .language-switch {
  display:flex;
  align-items:center;
  gap:2px;
  height:44px;
  padding:3px;
  border:1px solid #dae7ed;
  border-radius:24px;
  background:#fff;
  color:#a3aab7;
}

.site-header .language-switch > span {
  display:none;
}

.site-header .language-option {
  min-width:46px;
  min-height:36px;
  height:36px;
  padding:0 7px;
  border:0;
  border-radius:20px;
  background:transparent;
  color:#7d8798;
  font-size:13px;
  font-weight:750;
}

.site-header .language-option.is-active {
  color:#075c9d;
  background:#eaf4ff;
}

.hero {
  position:relative;
  background:linear-gradient(110deg,#fff 15%,#f2f6fc 80%,#ecf2fa);
  overflow:hidden;
  border-block:1px solid #eaf0f6;
}

.hero-inner {
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:60px;
  align-items:center;
  padding-top:62px;
  padding-bottom:20px;
}

.hero-copy {
  z-index:2;
  min-width:0;
}

.hero-copy>.eyebrow {
  display:flex;
  align-items:center;
  gap:12px;
}

.hero-copy>.eyebrow::before {
  content:"";
  height:2px;
  width:26px;
  background:#183766;
}

.hero h1 {
  font-size:clamp(42px,4.3vw,64px);
  font-weight:800;
  letter-spacing:-.045em;
  line-height:1.23;
  margin:22px 0 23px;
}

.hero h1 em {
  font-style:normal;
  color:#152951;
}

.lead {
  max-width:495px;
  font-size:16px;
  line-height:1.85;
  color:var(--muted);
}

.hero-spectrum {
  margin:24px 0 28px;
  display:flex;
  gap:8px;
  align-items:center;
}

.hero-spectrum i {
  background:var(--dot);
  width:9px;
  height:9px;
  border-radius:50%;
}

.hero-spectrum span {
  margin-left:9px;
  font-size:9px;
  letter-spacing:.12em;
  color:#566782;
  font-weight:650;
}

.hero-visual {
  position:relative;
  isolation:isolate;
  display:flex;
  align-items:center;
  justify-content:center;
  height:680px;
  min-width:0;
  align-self:center;
}

.hero-visual::before {
  content:"";
  position:absolute;
  inset:-150px -190px -50px -30px;
  z-index:-1;
  background:repeating-linear-gradient(90deg,transparent 0 42px,#ffffff85 44px 65px,transparent 79px 120px);
  mask-image:linear-gradient(90deg,transparent,#000 50%,#000);
  pointer-events:none;
}

.hero-visual::after {
  content:"";
  position:absolute;
  width:74%;
  height:60%;
  bottom:7%;
  left:13%;
  z-index:-1;
  background:radial-gradient(ellipse,#dce8f38c,transparent 70%);
}

.device-image {
  height:100%;
  width:100%;
  object-fit:contain;
  filter:drop-shadow(0 20px 18px #243a5612);
  position:relative;
  z-index:2;
}

.visual-mark {
  position:absolute;
  font-size:158px;
  line-height:.8;
  letter-spacing:-.08em;
  font-weight:300;
  color:#b7c7df45;
  top:50px;
  right:-12px;
  z-index:0;
}

.visual-mark span {
  display:block;
  font-size:9px;
  letter-spacing:.25em;
  margin-top:15px;
  color:#7185a5;
  text-align:right;
}

.visual-caption {
  position:absolute;
  bottom:-12px;
  left:10%;
  right:0;
  display:flex;
  align-items:center;
  gap:12px;
  color:#687b96;
  font-size:10px;
  letter-spacing:.035em;
  z-index:3;
  white-space:nowrap;
}

.caption-line {
  height:1px;
  background:#a9b9cf;
  width:36px;
  flex-shrink:0;
}

.hero-explore {
  display:flex;
  align-items:center;
  gap:16px;
  min-height:84px;
  font-size:12px;
  text-decoration:none;
  color:#526887;
}

.hero-explore svg {
  width:18px;
  height:18px;
}

.download-panel {
  position:relative;
  max-width:470px;
  padding:22px;
  background:#ffffffed;
  border:1px solid #dce5ef;
  border-radius:20px;
  box-shadow:0 16px 40px #263f6410;
}

.download-heading {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
}

.download-heading span {
  display:block;
  font-size:10px;
  letter-spacing:.12em;
  color:#637692;
  font-weight:700;
}

.download-heading strong {
  display:block;
  margin-top:6px;
  font-size:18px;
  line-height:1.5;
  letter-spacing:-.02em;
}

.download-heading img {
  width:38px;
  height:38px;
  border-radius:10px;
}

.platform-switch {
  display:flex;
  background:#f0f4fa;
  padding:4px;
  border-radius:11px;
  margin-top:17px;
  gap:4px;
}

.platform-option {
  display:flex;
  flex:1;
  min-width:0;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:44px;
  border:0;
  border-radius:8px;
  background:transparent;
  color:#576780;
  font-size:14px;
  font-weight:650;
  transition:background .2s,color .2s;
}

.platform-option.is-active {
  background:white;
  color:var(--ink);
  box-shadow:0 2px 6px #233e6112;
}

.platform-icon {
  display:grid;
  place-items:center;
  width:18px;
  height:20px;
}

.platform-icon img {
  width:100%;
  height:100%;
  object-fit:contain;
}

.version-row {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:54px;
}

.version-row>div {
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}

.version-label {
  font-size:12px;
  color:#63738b;
}

.version-value {
  font-size:14px;
  font-weight:650;
}

.platform-badge {
  font-size:9px;
  letter-spacing:.1em;
  color:#667892;
}

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

.download-button {
  flex:1;
  min-width:0;
  min-height:48px;
  padding:12px 16px;
  border-radius:10px;
  background:var(--ink);
  color:white;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  text-decoration:none;
  font-weight:650;
  font-size:14px;
  transition:background .2s;
}

.download-button svg {
  width:19px;
  height:19px;
}

.download-button:hover {
  background:#234777;
}

.download-button.is-disabled,.download-button.is-loading {
  color:#65748c;
  background:#e9eef5;
  cursor:default;
}

.status-text {
  font-size:11px;
  line-height:1.7;
  color:#64738a;
  margin-top:11px;
  min-height:19px;
}

.status-text.is-error {
  color:#ab2633;
}

.compatibility-hint {
  font-size:11px;
  line-height:1.6;
  color:#667b96;
  margin-top:14px;
}

.qr-control {
  position:relative;
}

.qr-trigger {
  display:grid;
  place-items:center;
  border:1px solid #dce4ef;
  background:white;
  border-radius:10px;
  width:48px;
  height:48px;
  color:var(--ink);
  transition:background .2s;
}

.qr-trigger:hover {
  background:#edf3fa;
}

.qr-trigger:disabled {
  cursor:default;
  color:#69798f;
}

.qr-trigger svg {
  width:23px;
  height:23px;
  fill:none;
  stroke:currentColor;
  stroke-width:1.6;
}

.qr-popover {
  display:none;
  position:absolute;
  left:0;
  bottom:calc(100% + 14px);
  width:224px;
  padding:18px;
  background:white;
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:0 16px 40px #162b4a20;
  z-index:30;
  text-align:center;
}

.qr-control.is-open .qr-popover {
  display:block;
}

.qr-popover strong {
  font-size:14px;
}

.qr-code {
  margin:12px auto 8px;
  width:176px;
  height:176px;
}

.qr-code img {
  width:176px;
  height:176px;
  display:block;
}

.qr-popover p {
  font-size:11px;
  color:var(--muted);
  line-height:1.7;
}

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

.section-heading h2,.faq-section h2 {
  font-size:clamp(30px,3vw,42px);
  letter-spacing:-.035em;
  line-height:1.45;
  white-space:pre-line;
  margin-top:12px;
}

.section-lead {
  max-width:310px;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
  padding-bottom:7px;
}

.spectrum-table {
  padding:12px 22px;
  border-radius:25px;
  border:1px solid #e1e8f2;
  background:#fff;
  box-shadow:0 10px 40px #233c6010;
}

.spectrum-row {
  position:relative;
  display:grid;
  grid-template-columns:130px 134px minmax(0,1fr) 250px;
  align-items:center;
  gap:28px;
  padding:20px 20px;
  min-height:142px;
  border-bottom:1px solid var(--line);
  scroll-margin-top:24px;
  isolation:isolate;
}

.spectrum-row:last-child {
  border-bottom:0;
}

.spectrum-row::before {
  content:"";
  position:absolute;
  z-index:-1;
  inset:7px 0;
  border-radius:16px;
  background:linear-gradient(90deg,color-mix(in srgb,var(--mode) 7%,transparent),transparent 60%);
}

.mode-label {
  color:var(--mode);
}

.mode-number {
  font-size:42px;
  line-height:1.05;
  font-weight:700;
  letter-spacing:-.04em;
}

.mode-label h3 {
  font-size:18px;
  line-height:1.5;
  margin-top:8px;
  font-weight:700;
}

.mask-wrap {
  display:flex;
  align-items:center;
  justify-content:center;
}

.light-mask {
  width:83px;
  height:100px;
  filter:drop-shadow(0 9px 12px color-mix(in srgb,var(--mode) 22%,transparent));
}

.mode-copy h4 {
  font-size:20px;
  line-height:1.5;
  font-weight:700;
  margin-bottom:7px;
  letter-spacing:-.015em;
}

.mode-copy p {
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
  max-width:320px;
}

.mode-experience {
  display:flex;
  align-items:center;
  gap:17px;
  border-left:1px solid #d8e0ec;
  padding-left:28px;
}

.experience-icon {
  width:54px;
  height:54px;
  border-radius:50%;
  background:var(--mode);
  color:white;
  display:grid;
  place-items:center;
  flex-shrink:0;
  box-shadow:inset 0 1px 6px #ffffff55;
}

.experience-icon svg {
  width:28px;
  height:28px;
}

.mode-experience small {
  display:block;
  color:#718098;
  font-size:10px;
  line-height:1.6;
  letter-spacing:.03em;
}

.mode-experience strong {
  display:block;
  font-size:15px;
  font-weight:600;
  margin-top:5px;
  line-height:1.6;
}

.spectrum-note {
  display:flex;
  align-items:center;
  justify-content:center;
  gap:12px;
  padding:17px 20px;
  background:#f0f5fc;
  border:1px solid #e0e8f3;
  border-radius:12px;
  margin-top:20px;
  color:#516480;
  font-size:12px;
  line-height:1.8;
}

.spectrum-note svg {
  width:20px;
  height:20px;
}

.control-section {
  background:#f4f7fb;
  border-block:1px solid #e8edf5;
}

.control-grid {
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:32px;
}

.control-grid li {
  padding:26px 0 0;
  border-top:1px solid #ced9e7;
}

.step-top {
  display:flex;
  align-items:center;
  justify-content:space-between;
  color:#314c75;
  margin-bottom:30px;
}

.step-top>span {
  font-size:12px;
  letter-spacing:.1em;
}

.step-top svg {
  width:28px;
  height:28px;
}

.control-grid h3 {
  font-size:21px;
  line-height:1.5;
  margin-bottom:12px;
}

.control-grid p {
  max-width:315px;
  color:var(--muted);
  font-size:14px;
  line-height:1.85;
}

.compatibility {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:38px;
  border:1px solid #dce5ef;
  background:#fff;
  padding:30px 34px;
  border-radius:18px;
  margin-top:48px;
}

.supported-label {
  font-size:10px;
  letter-spacing:.12em;
  color:#577092;
}

.compatibility h3 {
  font-size:18px;
  line-height:1.5;
  margin:9px 0 6px;
}

.compatibility p {
  font-size:12px;
  color:var(--muted);
  line-height:1.7;
  max-width:380px;
}

.compatibility dl {
  display:flex;
  gap:42px;
  margin:0;
  text-align:center;
  flex-shrink:0;
}

.compatibility dl > div {
  display:flex;
  flex-direction:column;
}

.compatibility dd {
  font-size:23px;
  font-weight:650;
  letter-spacing:-.025em;
  margin:0 0 8px;
  order:-1;
  line-height:1.4;
}

.compatibility dt {
  font-size:11px;
  color:var(--muted);
  line-height:1.6;
}

.faq-section {
  display:grid;
  grid-template-columns:.8fr 1.2fr;
  gap:80px;
}

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

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

.faq-list summary {
  list-style:none;
  cursor:pointer;
  font-size:16px;
  line-height:1.65;
  font-weight:600;
  padding:23px 34px 23px 0;
  position:relative;
}

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

.faq-list summary::after {
  content:"";
  position:absolute;
  right:2px;
  top:30px;
  width:12px;
  height:12px;
  background:linear-gradient(var(--ink),var(--ink)) center/12px 1px no-repeat,linear-gradient(var(--ink),var(--ink)) center/1px 12px no-repeat;
}

.faq-list details[open] summary::after {
  background:linear-gradient(var(--ink),var(--ink)) center/12px 1px no-repeat;
}

.faq-list p {
  color:var(--muted);
  font-size:14px;
  line-height:1.9;
  padding:0 28px 25px 0;
}

.closing-section {
  background:var(--ink);
  color:#fff;
  position:relative;
  overflow:hidden;
}

.closing-section::after {
  content:"";
  position:absolute;
  right:-100px;
  top:-180px;
  width:500px;
  height:500px;
  border:1px solid #ffffff0c;
  border-radius:50%;
  box-shadow:0 0 0 55px #ffffff04,0 0 0 110px #ffffff03;
  pointer-events:none;
}

.closing-inner {
  padding-block:65px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:42px;
  position:relative;
  z-index:1;
}

.closing-inner .eyebrow {
  color:#afc2dd;
}

.closing-inner h2 {
  font-size:clamp(26px,2.4vw,34px);
  letter-spacing:-.03em;
  line-height:1.5;
  margin:10px 0 15px;
}

.closing-inner p:not(.eyebrow) {
  font-size:14px;
  line-height:1.8;
  color:#c3cfe2;
}

.closing-button {
  display:flex;
  align-items:center;
  justify-content:center;
  gap:27px;
  border-radius:10px;
  background:white;
  color:var(--ink);
  padding:16px 22px;
  min-height:54px;
  font-size:15px;
  font-weight:650;
  text-decoration:none;
  flex-shrink:0;
  transition:background .2s;
}

.closing-button:hover {
  background:#e3edff;
}

footer {
  padding-block:36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
}

.footer-brand {
  display:grid;
  gap:8px;
}

.footer-brand>strong {
  font-size:22px;
  letter-spacing:.08em;
}

.footer-brand>span {
  font-size:10px;
  letter-spacing:.04em;
  color:var(--muted);
}

.footer-brand>small {
  font-size:11px;
  color:#64728a;
  line-height:1.7;
}

footer nav {
  display:flex;
  flex-wrap:wrap;
  gap:25px;
  font-size:12px;
  color:var(--muted);
}

footer a {
  text-decoration:none;
  min-height:44px;
  display:flex;
  align-items:center;
}

.noscript-message {
  text-align:center;
  padding:20px;
  font-size:14px;
}

.wechat-guide {
  position:fixed;
  inset:0;
  z-index:1000;
  padding:max(90px,calc(env(safe-area-inset-top) + 70px)) 24px 32px;
  color:white;
  background:#101b32f7;
  display:none;
  justify-content:center;
  overflow-y:auto;
}

.wechat-guide.is-visible {
  display:flex;
}

.wechat-guide-content {
  width:min(440px,100%);
  text-align:center;
}

.wechat-guide-content>img {
  border-radius:18px;
}

.wechat-guide-eyebrow {
  margin:24px 0 12px;
  color:#bad2ff;
  font-size:11px;
  font-weight:700;
}

.wechat-guide h2 {
  font-size:30px;
  line-height:1.4;
}

.wechat-guide-content>p:not(.wechat-guide-eyebrow) {
  margin-top:18px;
  color:#c1cee2;
  font-size:14px;
  line-height:1.8;
}

.wechat-guide-steps {
  margin-top:30px;
  padding:22px;
  border:1px solid #ffffff24;
  border-radius:14px;
  display:grid;
  grid-template-columns:30px 1fr;
  gap:18px 12px;
  text-align:left;
  align-items:center;
  background:#ffffff08;
}

.wechat-guide-steps span {
  background:white;
  color:var(--ink);
  width:30px;
  height:30px;
  border-radius:50%;
  display:grid;
  place-items:center;
}

.wechat-guide-steps strong {
  font-size:14px;
  line-height:1.7;
}

.wechat-guide-arrow {
  position:fixed;
  right:20px;
  top:max(24px,calc(env(safe-area-inset-top) + 16px));
  width:64px;
  height:60px;
  border-right:2px solid #bad2ff;
  border-top:2px solid #bad2ff;
  border-radius:0 28px 0 0;
  transform:rotate(-16deg);
}

.wechat-guide-arrow::after {
  content:"";
  position:absolute;
  right:-7px;
  top:-8px;
  width:14px;
  height:14px;
  border-right:2px solid #bad2ff;
  border-top:2px solid #bad2ff;
}

.wechat-guide-open {
  overflow:hidden;
}

@media(min-width:1500px) {
  .hero-inner {
    padding-top:76px;
    gap:70px;
  }
  .hero-visual {
    height:710px;
  }
}

@media(max-width:1100px) {
  .hero-inner {
    gap:32px;
  }
  .hero h1 {
    font-size:48px;
  }
  .hero-visual {
    height:620px;
  }
  .spectrum-row {
    grid-template-columns:110px 100px minmax(0,1fr) 210px;
    gap:18px;
    padding-inline:14px;
  }
  .mode-experience {
    padding-left:20px;
    gap:14px;
  }
  .mode-copy h4 {
    font-size:18px;
  }
  .compatibility dl {
    gap:28px;
  }
  .faq-section {
    gap:48px;
  }
  .site-header nav {
    gap:18px;
  }
}

@media(max-width:900px) {
  .wrap {
    width:calc(100% - 48px);
  }
  .site-header {
    min-height:82px;
  }
  .site-header nav>a {
    display:none;
  }
  .hero-inner {
    padding-top:44px;
    gap:28px;
    grid-template-columns:1.1fr .9fr;
  }
  .hero h1 {
    font-size:38px;
  }
  .lead {
    font-size:14px;
  }
  .hero-visual {
    height:560px;
  }
  .visual-mark {
    font-size:110px;
    top:80px;
  }
  .visual-caption {
    display:none;
  }
  .download-panel {
    padding:18px;
  }
  .download-heading strong {
    font-size:16px;
  }
  .download-heading img {
    display:none;
  }
  .hero-spectrum span {
    font-size:8px;
    letter-spacing:.03em;
  }
  .section {
    padding-block:72px;
  }
  .section-heading {
    gap:30px;
  }
  .section-heading h2 {
    font-size:32px;
  }
  .section-lead {
    font-size:14px;
    max-width:255px;
  }
  .spectrum-table {
    padding:8px 16px;
  }
  .spectrum-row {
    grid-template-columns:92px 80px 1fr;
    gap:16px;
    min-height:144px;
  }
  .light-mask {
    width:66px;
    height:85px;
  }
  .mode-number {
    font-size:36px;
  }
  .mode-label h3 {
    font-size:16px;
  }
  .mode-experience {
    grid-column:3;
    border:0;
    padding:0;
    gap:8px;
    margin-top:-8px;
  }
  .experience-icon {
    width:24px;
    height:24px;
  }
  .experience-icon svg {
    width:14px;
    height:14px;
  }
  .mode-experience small {
    display:none;
  }
  .mode-experience strong {
    font-size:11px;
    color:var(--mode);
    margin:0;
  }
  .mask-wrap,.mode-label {
    grid-row:span 2;
  }
  .mode-copy p {
    font-size:13px;
    max-width:none;
  }
  .compatibility {
    align-items:flex-start;
    padding:26px;
    gap:24px;
    flex-direction:column;
  }
  .compatibility dl {
    width:100%;
    justify-content:space-between;
  }
  .compatibility p {
    max-width:none;
  }
  .control-grid {
    gap:25px;
  }
  .control-grid h3 {
    font-size:18px;
  }
  .control-grid p {
    font-size:13px;
  }
  .closing-inner {
    gap:30px;
  }
  .closing-inner h2 {
    font-size:28px;
  }
}

@media(max-width:650px) {
  .wrap {
    width:calc(100% - 40px);
  }
  .site-header {
    min-height:76px;
    gap:18px;
  }
  .brand img {
    width:36px;
    height:36px;
    border-radius:9px;
  }
  .brand>span {
    font-size:20px;
  }
  .brand small {
    font-size:7px;
  }
  .site-header nav {
    gap:18px;
  }
  .site-header nav .nav-download {
    display:none;
  }
  .hero-inner {
    grid-template-columns:1fr;
    gap:20px;
    padding-top:38px;
    padding-bottom:0;
  }
  .hero h1 {
    font-size:clamp(36px,8.8vw,52px);
    margin-block:19px;
  }
  .lead {
    font-size:15px;
    line-height:1.9;
    max-width:none;
  }
  .hero-spectrum {
    margin-block:21px 26px;
  }
  .hero-spectrum span {
    font-size:9px;
    letter-spacing:.06em;
  }
  .hero-visual {
    height:410px;
    width:min(360px,100%);
    margin:0 auto 0;
    order:2;
  }
  .hero-visual::before {
    inset:-20px -100px -20px 0;
  }
  .visual-mark {
    font-size:95px;
    right:0;
    top:26px;
  }
  .visual-mark span {
    font-size:8px;
  }
  .download-panel {
    max-width:none;
    padding:20px;
  }
  .download-heading strong {
    font-size:18px;
  }
  .download-heading img {
    display:block;
    width:36px;
    height:36px;
  }
  .status-text {
    font-size:12px;
  }
  .compatibility-hint {
    font-size:11px;
  }
  .hero-explore {
    justify-content:center;
    min-height:62px;
  }
  .section {
    padding-block:60px;
  }
  .section-heading {
    display:block;
    margin-bottom:28px;
  }
  .section-heading h2,.faq-section h2 {
    font-size:29px;
    line-height:1.5;
  }
  .section-lead {
    max-width:none;
    margin-top:18px;
    padding:0;
    font-size:14px;
    line-height:1.9;
  }
  .spectrum-table {
    padding:5px 10px;
    border-radius:20px;
  }
  .spectrum-row {
    grid-template-columns:67px 1fr;
    gap:10px 17px;
    padding:20px 14px;
    min-height:165px;
  }
  .mode-label {
    grid-column:2;
    grid-row:1;
    display:flex;
    align-items:baseline;
    gap:12px;
  }
  .mode-number {
    font-size:22px;
  }
  .mode-label h3 {
    font-size:15px;
    margin:0;
  }
  .mask-wrap {
    grid-column:1;
    grid-row:1/span 3;
    align-self:center;
  }
  .light-mask {
    width:60px;
    height:82px;
  }
  .mode-copy {
    grid-column:2;
    grid-row:2;
  }
  .mode-copy h4 {
    font-size:17px;
    margin-bottom:5px;
  }
  .mode-copy p {
    font-size:12px;
    line-height:1.8;
  }
  .mode-experience {
    grid-column:2;
    grid-row:3;
    margin-top:0;
  }
  .mode-experience strong {
    font-size:11px;
  }
  .experience-icon {
    width:22px;
    height:22px;
  }
  .spectrum-note {
    align-items:flex-start;
    justify-content:flex-start;
    padding:15px;
    border-radius:12px;
    font-size:11px;
  }
  .spectrum-note svg {
    margin-top:2px;
  }
  .control-grid {
    grid-template-columns:1fr;
    gap:30px;
  }
  .control-grid li {
    padding-top:22px;
    display:grid;
    grid-template-columns:40px 1fr;
    gap:8px 20px;
  }
  .step-top {
    display:block;
    margin:0;
    grid-row:span 2;
  }
  .step-top svg {
    margin-top:17px;
    width:24px;
    height:24px;
  }
  .control-grid h3 {
    font-size:20px;
    margin:0;
  }
  .control-grid p {
    max-width:none;
    font-size:14px;
  }
  .compatibility {
    margin-top:35px;
    padding:22px;
    border-radius:15px;
  }
  .compatibility dd {
    font-size:21px;
  }
  .compatibility dt {
    font-size:11px;
  }
  .compatibility dl {
    gap:18px;
  }
  .compatibility h3 {
    font-size:17px;
  }
  .compatibility p {
    font-size:12px;
  }
  .faq-section {
    grid-template-columns:1fr;
    gap:28px;
  }
  .faq-section h2 {
    white-space:normal;
  }
  .faq-list summary {
    font-size:15px;
    padding-block:22px;
  }
  .faq-list p {
    font-size:13px;
    padding-right:12px;
  }
  .closing-inner {
    flex-direction:column;
    align-items:flex-start;
    padding-block:45px;
    gap:26px;
  }
  .closing-inner h2 {
    font-size:27px;
  }
  .closing-inner p:not(.eyebrow) {
    font-size:13px;
  }
  .closing-button {
    width:100%;
    justify-content:space-between;
    font-size:14px;
  }
  footer {
    flex-direction:column;
    align-items:flex-start;
    padding-block:28px;
    gap:15px;
  }
  footer nav {
    gap:22px;
  }
  .qr-popover {
    width:222px;
  }
  .hero-copy>.eyebrow {
    font-size:10px;
  }
  .visual-caption {
    display:none;
  }
}

@media(max-width:360px) {
  .wrap {
    width:calc(100% - 32px);
  }
  .hero h1 {
    font-size:34px;
  }
  .hero-spectrum {
    gap:6px;
  }
  .hero-spectrum span {
    font-size:8px;
    margin-left:6px;
  }
  .download-panel {
    padding:16px;
  }
  .download-heading strong {
    font-size:16px;
  }
  .hero-visual {
    height:350px;
  }
  .spectrum-row {
    padding-inline:9px;
    grid-template-columns:56px 1fr;
    gap:10px 13px;
  }
  .light-mask {
    width:52px;
    height:74px;
  }
  .mode-label {
    gap:10px;
  }
  .mode-label h3 {
    font-size:14px;
  }
  .mode-copy h4 {
    font-size:16px;
  }
  .compatibility {
    padding:20px;
  }
  .compatibility dd {
    font-size:18px;
  }
  .compatibility dl {
    gap:14px;
  }
  .closing-inner h2 {
    font-size:25px;
  }
}

@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto;
  }
  *,*::before,*::after {
    animation:none!important;
    transition:none!important;
  }
}