body.help-desktop-page{
  --brand:#e0007a;
  --brand-soft:#fff0f7;
  --brand-line:#ffd3ea;
  --ink:#111827;
  --text:#374151;
  --sub:#6b7280;
  --muted:#9ca3af;
  --line:#e5e7eb;
  --soft:#f7f8fb;
  --card:#ffffff;
  --shadow:0 12px 32px rgba(17,24,39,.08);
  --radius:8px;
}
.help-desktop-page,
.help-desktop-page *,
.help-desktop-page *::before,
.help-desktop-page *::after{box-sizing:border-box}
body.help-desktop-page{
  margin:0;
  min-height:100vh;
  background:#fff;
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
  line-height:1.72;
  letter-spacing:0;
}
.help-desktop-page a{color:inherit}
.help-desktop-page .skip-link{
  position:absolute;
  left:16px;
  top:-44px;
  z-index:80;
  padding:8px 12px;
  border-radius:var(--radius);
  background:var(--ink);
  color:#fff;
  text-decoration:none;
}
.help-desktop-page .skip-link:focus{top:12px}
.help-desktop-page .page{
  width:min(100%, 800px);
  margin:0 auto;
  padding:0 18px 48px;
}
.help-desktop-page .topbar{
  position:sticky;
  top:0;
  z-index:20;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(180%) blur(14px);
}
.help-desktop-page .topbar-inner{
  width:min(100%, 800px);
  margin:0 auto;
  padding:12px 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.help-desktop-page .brand{
  display:flex;
  align-items:center;
  min-width:0;
  gap:10px;
  text-decoration:none;
}
.help-desktop-page .brand img{
  width:34px;
  height:34px;
  object-fit:contain;
  flex:0 0 auto;
}
.help-desktop-page .brand-title{
  font-size:14px;
  font-weight:800;
  color:var(--ink);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.help-desktop-page .brand-sub{
  font-size:11px;
  color:var(--sub);
  line-height:1.2;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.help-desktop-page .top-link{
  flex:0 0 auto;
  min-height:36px;
  padding:8px 12px;
  border:1px solid var(--line);
  border-radius:999px;
  color:var(--sub);
  font-size:12px;
  font-weight:700;
  text-decoration:none;
  background:#fff;
}
.help-desktop-page .top-actions{
  flex:0 0 auto;
  display:flex;
  gap:8px;
  align-items:center;
}
.help-desktop-page .hero{
  padding:42px 0 28px;
  border-bottom:1px solid var(--line);
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
.help-desktop-page .kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  width:max-content;
  max-width:100%;
  padding:6px 10px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:800;
}
.help-desktop-page .dot{
  width:7px;
  height:7px;
  border-radius:999px;
  background:var(--brand);
  display:inline-block;
}
.help-desktop-page h1{
  margin:14px 0 10px;
  font-size:40px;
  line-height:1.16;
  color:var(--ink);
  font-weight:900;
  letter-spacing:0;
}
.help-desktop-page .hero p{
  margin:0;
  max-width:620px;
  color:var(--sub);
  font-size:16px;
}
.help-desktop-page .quick-action-panel{
  margin-top:18px;
  padding:14px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:#fff;
  box-shadow:0 10px 26px rgba(17,24,39,.06);
}
.help-desktop-page .quick-action-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
}
.help-desktop-page .quick-action-btn{
  min-height:44px;
  border-radius:999px;
  border:1px solid var(--brand);
  padding:10px 16px;
  font-size:14px;
  font-weight:900;
  cursor:pointer;
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:var(--brand);
  color:#fff;
}
.help-desktop-page .quick-action-btn.secondary{
  background:#fff;
  color:var(--brand);
  border-color:var(--brand-line);
}
.help-desktop-page .install-status{
  margin:10px 0 0;
  color:var(--sub);
  font-size:13px;
  line-height:1.6;
}
.help-desktop-page .hero-visual{
  width:100%;
  min-height:150px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(180deg,#fff 0%,#fafbfc 100%);
  display:grid;
  place-items:center;
  box-shadow:var(--shadow);
}
.help-desktop-page .shortcut-art{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:16px;
  padding:20px;
  color:var(--brand);
}
.help-desktop-page .app-icon{
  width:76px;
  height:76px;
  border-radius:20px;
  background:#fff;
  border:1px solid var(--brand-line);
  box-shadow:0 10px 24px rgba(224,0,122,.12);
  display:grid;
  place-items:center;
  position:relative;
}
.help-desktop-page .app-icon img{
  width:56px;
  height:56px;
  object-fit:contain;
}
.help-desktop-page .plus{
  width:26px;
  height:26px;
  border-radius:999px;
  background:var(--brand);
  color:#fff;
  display:grid;
  place-items:center;
  font-size:20px;
  line-height:1;
  font-weight:800;
}
.help-desktop-page .desktop-icon{
  width:96px;
  height:76px;
  color:#4b5563;
}
.help-desktop-page .section{
  padding:26px 0;
  border-bottom:1px solid var(--line);
}
.help-desktop-page .section-head{
  margin-bottom:16px;
}
.help-desktop-page h2{
  margin:0;
  color:var(--ink);
  font-size:22px;
  line-height:1.32;
  font-weight:900;
  letter-spacing:0;
}
.help-desktop-page .section-desc{
  margin:6px 0 0;
  color:var(--sub);
  font-size:14px;
}
.help-desktop-page .benefits{
  display:grid;
  grid-template-columns:1fr;
  gap:12px;
}
.help-desktop-page .device-picker{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
}
.help-desktop-page .device-picker-card{
  min-height:112px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:10px;
  padding:16px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:#fff;
  color:inherit;
  text-decoration:none;
}
.help-desktop-page .device-picker-card:hover{
  border-color:var(--brand-line);
  box-shadow:var(--shadow);
}
.help-desktop-page .device-picker-card strong{
  color:var(--ink);
  font-size:16px;
  line-height:1.3;
}
.help-desktop-page .device-picker-card span{
  color:var(--sub);
  font-size:13px;
  line-height:1.5;
}
.help-desktop-page .next-step-panel{
  display:grid;
  gap:12px;
  padding:18px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--brand-soft);
}
.help-desktop-page .next-step-panel h2{
  font-size:20px;
}
.help-desktop-page .next-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.help-desktop-page .benefit-card,
.help-desktop-page .device-card,
.help-desktop-page .faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--card);
}
.help-desktop-page .benefit-card{
  padding:16px;
}
.help-desktop-page .benefit-icon,
.help-desktop-page .device-icon{
  width:38px;
  height:38px;
  border-radius:var(--radius);
  background:var(--brand-soft);
  color:var(--brand);
  display:grid;
  place-items:center;
  margin-bottom:10px;
}
.help-desktop-page .benefit-icon svg,
.help-desktop-page .device-icon svg,
.help-desktop-page .desktop-icon svg{
  width:100%;
  height:100%;
  display:block;
  fill:none;
  stroke:currentColor;
  stroke-width:2;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.help-desktop-page .benefit-icon svg,
.help-desktop-page .device-icon svg{
  width:20px;
  height:20px;
}
.help-desktop-page .benefit-card h3{
  margin:0 0 6px;
  color:var(--ink);
  font-size:16px;
  font-weight:900;
}
.help-desktop-page .benefit-card p{
  margin:0;
  color:var(--sub);
  font-size:13px;
}
.help-desktop-page .device-list{
  display:grid;
  gap:16px;
}
.help-desktop-page .device-card{
  padding:18px;
}
.help-desktop-page .device-title{
  display:flex;
  align-items:flex-start;
  gap:12px;
  margin-bottom:12px;
}
.help-desktop-page .device-title h3{
  margin:0;
  color:var(--ink);
  font-size:18px;
  line-height:1.35;
  font-weight:900;
}
.help-desktop-page .browser-note{
  margin:4px 0 0;
  color:var(--sub);
  font-size:13px;
}
.help-desktop-page .browser-note strong,
.help-desktop-page .step-copy strong,
.help-desktop-page .tip strong,
.help-desktop-page .faq-answer strong{
  color:var(--brand);
  font-weight:900;
}
.help-desktop-page .steps{
  display:grid;
  gap:12px;
  margin-top:12px;
}
.help-desktop-page .version-group{
  margin-top:14px;
  padding:14px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:#fbfcff;
}
.help-desktop-page .version-group:first-of-type{margin-top:0}
.help-desktop-page .version-title{
  margin:0;
  color:var(--ink);
  font-size:15px;
  font-weight:900;
  line-height:1.45;
}
.help-desktop-page .version-note{
  margin:4px 0 0;
  color:var(--sub);
  font-size:13px;
  line-height:1.6;
}
.help-desktop-page .step{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:12px;
  padding:14px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:#fff;
}
.help-desktop-page .step-number{
  width:40px;
  height:40px;
  border-radius:999px;
  background:var(--brand);
  color:#fff;
  display:grid;
  place-items:center;
  font-size:20px;
  line-height:1;
  font-weight:900;
}
.help-desktop-page .step-copy{
  min-width:0;
  color:var(--ink);
  font-size:15px;
  font-weight:700;
}
.help-desktop-page .step-visual{
  grid-column:1 / -1;
  min-height:112px;
  border:1px solid #dfe5ee;
  border-radius:var(--radius);
  background:linear-gradient(180deg,#fff 0%,#f8fafc 100%);
  display:grid;
  place-items:center;
  padding:12px;
  overflow:hidden;
}
.help-desktop-page .mock-window{
  width:100%;
  max-width:210px;
  border:1px solid #d4dae5;
  border-radius:8px;
  background:#fff;
  box-shadow:0 8px 18px rgba(17,24,39,.08);
  overflow:hidden;
  color:var(--ink);
}
.help-desktop-page .mock-bar{
  height:24px;
  background:#f1f4f8;
  border-bottom:1px solid #e1e7ef;
  display:flex;
  align-items:center;
  gap:5px;
  padding:0 8px;
}
.help-desktop-page .mock-dot{
  width:6px;
  height:6px;
  border-radius:999px;
  background:#c5ccd8;
}
.help-desktop-page .mock-url{
  flex:1;
  min-width:0;
  height:13px;
  border-radius:999px;
  background:#fff;
  border:1px solid #e1e7ef;
  color:var(--sub);
  font-size:7px;
  line-height:12px;
  padding:0 6px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.help-desktop-page .mock-install-icon,
.help-desktop-page .mock-menu-dot{
  width:16px;
  height:16px;
  border-radius:5px;
  background:var(--brand);
  color:#fff;
  display:grid;
  place-items:center;
  font-size:12px;
  font-weight:900;
  line-height:1;
}
.help-desktop-page .mock-page{
  min-height:62px;
  display:grid;
  place-items:center;
  padding:10px;
  text-align:center;
}
.help-desktop-page .mock-logo{
  width:42px;
  height:42px;
  object-fit:contain;
  margin-bottom:4px;
}
.help-desktop-page .mock-title{
  color:var(--ink);
  font-size:12px;
  font-weight:900;
  line-height:1.25;
}
.help-desktop-page .mock-callout{
  margin-top:8px;
  color:var(--brand);
  font-size:12px;
  font-weight:900;
  text-align:center;
}
.help-desktop-page .mock-modal,
.help-desktop-page .mock-sheet{
  width:100%;
  max-width:190px;
  border:1px solid #dfe5ee;
  border-radius:8px;
  background:#fff;
  box-shadow:0 10px 20px rgba(17,24,39,.10);
  padding:12px;
  color:var(--ink);
}
.help-desktop-page .mock-modal-title,
.help-desktop-page .mock-sheet-title{
  font-size:12px;
  font-weight:900;
  margin-bottom:8px;
}
.help-desktop-page .mock-modal-line{
  height:8px;
  border-radius:999px;
  background:#eef2f7;
  margin-bottom:6px;
}
.help-desktop-page .mock-modal-line.short{width:72%}
.help-desktop-page .mock-install-btn{
  margin-top:10px;
  height:26px;
  border-radius:999px;
  background:var(--brand);
  color:#fff;
  display:grid;
  place-items:center;
  font-size:12px;
  font-weight:900;
}
.help-desktop-page .mock-desktop{
  width:100%;
  max-width:190px;
  min-height:92px;
  border-radius:8px;
  border:1px solid #dfe5ee;
  background:linear-gradient(135deg,#f8fafc,#fff0f7);
  display:grid;
  place-items:center;
  padding:14px;
}
.help-desktop-page .mock-shortcut{
  width:58px;
  text-align:center;
  color:var(--ink);
  font-size:10px;
  font-weight:900;
  line-height:1.3;
}
.help-desktop-page .mock-shortcut img{
  width:42px;
  height:42px;
  object-fit:contain;
  display:block;
  margin:0 auto 5px;
  border-radius:11px;
  border:1px solid var(--brand-line);
  background:#fff;
  padding:4px;
}
.help-desktop-page .mock-phone{
  width:92px;
  min-height:128px;
  border:2px solid #1f2937;
  border-radius:16px;
  background:#fff;
  padding:9px 6px;
  box-shadow:0 8px 18px rgba(17,24,39,.10);
  position:relative;
  color:var(--ink);
}
.help-desktop-page .mock-phone::before{
  content:"";
  position:absolute;
  top:5px;
  left:50%;
  width:26px;
  height:3px;
  border-radius:999px;
  background:#d1d5db;
  transform:translateX(-50%);
}
.help-desktop-page .mock-phone-screen{
  margin-top:8px;
  min-height:98px;
  border-radius:10px;
  background:#f8fafc;
  border:1px solid #e5e7eb;
  padding:7px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.help-desktop-page .mock-phone-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:6px;
  font-size:7px;
  color:var(--sub);
}
.help-desktop-page .mock-menu{
  display:flex;
  gap:2px;
  align-items:center;
}
.help-desktop-page .mock-menu i{
  width:3px;
  height:3px;
  border-radius:999px;
  background:var(--brand);
  display:block;
}
.help-desktop-page .mock-phone-logo{
  display:grid;
  place-items:center;
  gap:4px;
  text-align:center;
  color:var(--ink);
  font-size:9px;
  font-weight:900;
}
.help-desktop-page .mock-phone-logo img{
  width:32px;
  height:32px;
  object-fit:contain;
}
.help-desktop-page .mock-home-option{
  min-height:24px;
  border-radius:7px;
  background:#fff;
  border:1px solid var(--brand-line);
  color:var(--brand);
  display:grid;
  place-items:center;
  font-size:8px;
  font-weight:900;
  padding:4px;
  text-align:center;
}
.help-desktop-page .mock-share{
  width:26px;
  height:26px;
  border-radius:999px;
  border:1px solid var(--brand-line);
  color:var(--brand);
  background:#fff;
  display:grid;
  place-items:center;
  font-size:16px;
  font-weight:900;
  margin:0 auto;
}
.help-desktop-page .mock-sheet-row{
  min-height:26px;
  border-radius:7px;
  border:1px solid #e5e7eb;
  display:flex;
  align-items:center;
  padding:0 8px;
  margin-top:7px;
  color:var(--sub);
  font-size:9px;
  font-weight:800;
}
.help-desktop-page .mock-sheet-row.active{
  color:var(--brand);
  border-color:var(--brand-line);
  background:var(--brand-soft);
}
.help-desktop-page .tip{
  margin-top:12px;
  padding:12px 14px;
  border-radius:var(--radius);
  background:var(--brand-soft);
  border:1px solid var(--brand-line);
  color:var(--text);
  font-size:14px;
}
.help-desktop-page .faq-list{
  display:grid;
  gap:10px;
}
.help-desktop-page .faq-item{
  padding:16px;
}
.help-desktop-page .faq-question{
  margin:0 0 6px;
  color:var(--ink);
  font-size:15px;
  font-weight:900;
}
.help-desktop-page .faq-answer{
  margin:0;
  color:var(--sub);
  font-size:14px;
}
.help-desktop-page .cta{
  text-align:center;
  padding:30px 0 12px;
}
.help-desktop-page .primary-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  min-width:220px;
  padding:12px 20px;
  border-radius:999px;
  border:1px solid var(--brand);
  background:var(--brand);
  color:#fff;
  text-decoration:none;
  font-size:15px;
  font-weight:900;
  box-shadow:0 12px 26px rgba(224,0,122,.2);
}
.help-desktop-page .support-text{
  margin:16px 0 0;
  color:var(--sub);
  font-size:14px;
}
.help-desktop-page .copyright{
  margin:12px 0 0;
  color:var(--muted);
  font-size:12px;
}
.help-desktop-page .back-top{
  position:fixed;
  right:16px;
  bottom:max(16px,calc(env(safe-area-inset-bottom) + 12px));
  z-index:30;
  width:46px;
  height:46px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand);
  box-shadow:var(--shadow);
  cursor:pointer;
  display:none;
  place-items:center;
}
.help-desktop-page .back-top.show{display:grid}
.help-desktop-page .back-top svg{
  width:20px;
  height:20px;
  fill:none;
  stroke:currentColor;
  stroke-width:2.2;
  stroke-linecap:round;
  stroke-linejoin:round;
}
@media (min-width: 720px){
  .help-desktop-page .page{padding-left:24px;padding-right:24px}
  .help-desktop-page .topbar-inner{padding-left:24px;padding-right:24px}
  .help-desktop-page .hero{
    grid-template-columns:minmax(0,1.1fr) minmax(260px,.9fr);
    align-items:center;
  }
  .help-desktop-page .benefits{grid-template-columns:repeat(3, minmax(0,1fr))}
  .help-desktop-page .device-picker{grid-template-columns:repeat(3, minmax(0,1fr))}
  .help-desktop-page .step{
    grid-template-columns:auto minmax(0,1fr) 190px;
    align-items:center;
  }
  .help-desktop-page .step-visual{
    grid-column:auto;
    min-height:86px;
  }
}
@media (max-width: 520px){
  .help-desktop-page .topbar-inner{padding:10px 14px}
  .help-desktop-page .page{padding-left:14px;padding-right:14px}
  .help-desktop-page .top-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}
  .help-desktop-page .top-link{width:100%;text-align:center}
  .help-desktop-page .hero{padding:18px 0 14px;gap:12px}
  .help-desktop-page .hero p{font-size:13px;line-height:1.55}
  .help-desktop-page .hero-visual{display:none}
  .help-desktop-page .quick-action-panel{margin-top:12px;padding:10px}
  .help-desktop-page .quick-action-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .help-desktop-page .quick-action-btn{min-height:40px;padding:9px 12px;font-size:13px}
  .help-desktop-page .install-status{margin-top:8px;font-size:12px;line-height:1.5}
  .help-desktop-page .section{padding:18px 0}
  .help-desktop-page .device-first-section{padding-top:14px}
  .help-desktop-page .shortcut-art{gap:10px}
  .help-desktop-page .app-icon{width:66px;height:66px;border-radius:18px}
  .help-desktop-page .app-icon img{width:48px;height:48px}
  .help-desktop-page .desktop-icon{width:82px;height:64px}
  .help-desktop-page .device-picker{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .help-desktop-page .device-picker-card{min-height:92px;padding:10px;gap:4px}
  .help-desktop-page .device-picker-card:last-child{grid-column:1/-1;min-height:72px}
  .help-desktop-page .device-picker-card strong{font-size:13px}
  .help-desktop-page .device-picker-card span{font-size:10px;line-height:1.4}
  .help-desktop-page .device-card{padding:16px}
  .help-desktop-page .next-actions{display:grid;grid-template-columns:1fr}
  .help-desktop-page .step{padding:12px}
  .help-desktop-page .primary-btn{width:100%}
  .help-desktop-page .quick-action-btn{width:auto;min-width:0;padding-inline:6px}
  .help-desktop-page h1{font-size:26px}
}

.help-desktop-page [id]{scroll-margin-top:76px}

@media (prefers-reduced-motion:reduce){
  .help-desktop-page *,
  .help-desktop-page *::before,
  .help-desktop-page *::after{
    scroll-behavior:auto!important;
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
  }
}