:root{
  --bg:#f6f7f9;
  --sf:#fff;
  --ink:#111827;
  --mute:#5b6472;
  --line:#e3e6ec;
  --blue:#2255d6;
  --onb:#fff;
  --cm:#e7f3fd;
  --pn:#f8f4ff;
  --pnb:#c9b8ee;
  --pnt:#6b3fb5;
  --ok:#0f7a55;
  --navy:#e5edfc;
  --deep2:#eceff5;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px)}

*{
  box-sizing:border-box;
  margin:0}
html{
  scroll-padding-top:env(safe-area-inset-top,0px);
  scroll-behavior:smooth}

body{
  background:var(--bg);
  color:var(--ink);
  font:16px/1.6 Geist,system-ui,sans-serif;
  -webkit-font-smoothing:antialiased}

:focus-visible{
  outline:3px solid var(--blue);
  outline-offset:2px}

.w{
  max-width:1120px;
  margin:0 auto;
  padding:0 24px}

nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:68px;
  gap:16px;
  flex-wrap:wrap}

.logo{
  display:flex;
  align-items:center;
  gap:8px;
  font-weight:700;
  letter-spacing:-.02em;
  color:inherit;
  text-decoration:none}
.logo b{
  background:var(--blue);
  color:var(--onb);
  width:26px;
  height:26px;
  border-radius:8px;
  display:grid;
  place-items:center;
  font-size:14px}

nav .l a{
  color:var(--mute);
  text-decoration:none;
  font-size:14px;
  margin-right:20px;
  padding:10px 0;
  display:inline-block}

.btn{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  background:var(--blue);
  color:var(--onb);
  padding:0 20px;
  border-radius:10px;
  font:600 14px Geist,sans-serif;
  text-decoration:none;
  border:0;
  cursor:pointer}
.ghost{
  background:none;
  color:var(--ink);
  border:1px solid var(--line)}

.hero{
  padding:48px 0 32px}
.eb{
  font-size:13px;
  color:var(--blue);
  font-weight:600;
  margin-bottom:16px}

h1{
  font-size:clamp(40px,6.4vw,80px);
  line-height:1;
  letter-spacing:-.045em;
  font-weight:700;
  max-width:11em}

.lede{
  color:var(--mute);
  font-size:18px;
  max-width:34em;
  margin:20px 0 28px}
.cta{
  display:flex;
  gap:8px;
  flex-wrap:wrap}

.tk{
  margin-top:48px;
  background:var(--sf);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:0 24px 48px -28px rgba(17,24,39,.35);
  overflow:hidden}

.top{
  display:flex;
  gap:12px;
  align-items:center;
  padding:12px 20px;
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--mute);
  flex-wrap:wrap}

.top .q{
  margin-left:auto;
  border:1px solid var(--line);
  border-radius:8px;
  padding:4px 12px;
  min-width:160px}

.hd{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:20px;
  border-bottom:1px solid var(--line)}

.hd h2{
  font-size:22px;
  letter-spacing:-.02em;
  line-height:1.25}
.hd small{
  color:var(--mute)}

.ctl{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  align-items:center}

.seg{
  display:flex;
  background:var(--bg);
  padding:3px;
  border-radius:10px}
.seg button{
  border:0;
  background:none;
  color:var(--mute);
  font:500 13px Geist,sans-serif;
  min-height:44px;
  padding:0 14px;
  border-radius:8px;
  cursor:pointer}

.seg button[aria-pressed=true]{
  background:var(--sf);
  color:var(--ink);
  box-shadow:0 1px 3px rgba(0,0,0,.18)}

.pri{
  font-size:12px;
  color:var(--mute)}
.pri b{
  color:#fff;
  background:#c2410c;
  border-radius:6px;
  padding:2px 8px;
  margin-left:4px}

.cols{
  display:grid;
  grid-template-columns:5fr 7fr}
@media(max-width:820px){
  .cols{
  grid-template-columns:1fr}
}

.req{
  padding:20px;
  border-right:1px solid var(--line);
  font-size:14px}
@media(max-width:820px){
  .req{
  border:0;
  border-bottom:1px solid var(--line)}
}

.lab{
  font-size:11px;
  font-weight:600;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--mute);
  margin-bottom:6px}

.chip{
  display:inline-block;
  font-size:12px;
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 8px;
  margin:6px 6px 0 0;
  color:var(--mute)}

.thr{
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:12px;
  min-height:280px}

.m{
  padding:12px 14px;
  border-radius:12px;
  font-size:14px;
  max-width:92%}
.m small{
  display:block;
  font-size:11px;
  font-weight:600;
  margin-bottom:2px}

.m.c{
  background:var(--cm)}
.m.c small{
  color:var(--blue)}
.m.p{
  background:var(--pn);
  border:1.5px dashed var(--pnb)}
.m.p small{
  color:var(--pnt)}

.sys{
  font-size:12px;
  color:var(--mute)}

.cap{
  padding:12px 20px;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--mute)}

section{
  padding:88px 0;
  border-top:1px solid var(--line)}

h2.s{
  font-size:clamp(28px,4.2vw,48px);
  line-height:1.06;
  letter-spacing:-.04em;
  font-weight:700;
  max-width:13em}
.sub{
  color:var(--mute);
  max-width:34em;
  margin-top:16px}

.spine{
  margin-top:48px;
  position:relative;
  padding-left:40px}
.spine::before{
  content:"";
  position:absolute;
  left:11px;
  top:6px;
  bottom:6px;
  width:2px;
  background:var(--line)}

.st{
  position:relative;
  display:grid;
  grid-template-columns:4fr 6fr;
  gap:32px;
  padding-bottom:48px}
@media(max-width:760px){
  .st{
  grid-template-columns:1fr;
  gap:16px}
}

.st::before{
  content:attr(data-n);
  position:absolute;
  left:-40px;
  top:0;
  width:24px;
  height:24px;
  border-radius:50%;
  background:var(--blue);
  color:var(--onb);
  font-size:12px;
  font-weight:600;
  display:grid;
  place-items:center}

.st h3{
  font-size:22px;
  letter-spacing:-.02em}
.st p{
  color:var(--mute);
  font-size:15px;
  margin-top:4px}

.mini{
  background:var(--sf);
  border:1px solid var(--line);
  border-radius:12px;
  padding:16px;
  font-size:14px}

.row{
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding:6px 0;
  border-bottom:1px solid var(--line)}
.row:last-child{
  border:0}
.row span:first-child{
  color:var(--mute)}

.two{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
  margin-top:48px}
@media(max-width:760px){
  .two{
  grid-template-columns:1fr}
}

.pane{
  background:var(--sf);
  border:1px solid var(--line);
  border-radius:16px;
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:12px}
.pane h3{
  font-size:13px;
  color:var(--mute);
  font-weight:600}

.kn{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:56px;
  align-items:start}
@media(max-width:860px){
  .kn{
  grid-template-columns:1fr;
  gap:32px}
}

.sr{
  border:1px solid var(--line);
  background:var(--sf);
  border-radius:12px;
  padding:12px 16px;
  font-size:14px;
  margin-bottom:12px}

.art{
  padding:14px 0;
  border-top:1px solid var(--line);
  font-size:15px}
.art small{
  display:block;
  color:var(--mute);
  font-size:13px}

.ch{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
  margin-top:40px;
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  background:var(--sf)}
@media(max-width:760px){
  .ch{
  grid-template-columns:1fr}
}

.ch div{
  padding:24px;
  border-right:1px solid var(--line);
  font-size:14px}
.ch div:last-child{
  border:0}
@media(max-width:760px){
  .ch div{
  border-right:0;
  border-bottom:1px solid var(--line)}
}

.ch b{
  display:block;
  font-size:18px;
  margin-bottom:4px}
.ch p{
  color:var(--mute)}
.note{
  margin-top:16px;
  font-size:14px;
  color:var(--mute);
  max-width:44em}

.faq{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:56px}
@media(max-width:860px){
  .faq{
  grid-template-columns:1fr;
  gap:24px}
}

details{
  border-top:1px solid var(--line);
  padding:4px 0}
details:last-child{
  border-bottom:1px solid var(--line)}

summary{
  cursor:pointer;
  font-weight:500;
  list-style:none;
  display:flex;
  justify-content:space-between;
  min-height:44px;
  align-items:center}
summary::after{
  content:"+";
  color:var(--blue);
  font-weight:600}
details[open] summary::after{
  content:"–"}

details p{
  color:var(--mute);
  font-size:14px;
  padding-bottom:12px;
  max-width:40em}

.end{
  background:var(--cm);
  color:var(--ink);
  border-radius:20px;
  padding:56px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:24px;
  flex-wrap:wrap;
  margin:24px 0 48px}

.end h2{
  font-size:clamp(28px,4vw,44px);
  letter-spacing:-.04em;
  line-height:1.05;
  max-width:12em}
.end .btn{
  background:var(--blue);
  color:var(--onb)}

footer{
  display:flex;
  justify-content:space-between;
  padding-bottom:32px;
  font-size:13px;
  color:var(--mute);
  flex-wrap:wrap;
  gap:8px}
footer a{
  color:inherit}

.stage{
  margin-top:48px;
  background:var(--navy);
  border-radius:24px;
  padding:40px 40px 24px;
  transform:rotate(-1deg);
  position:relative}

.stage .tk{
  margin-top:0;
  transform:rotate(1.2deg);
  box-shadow:0 24px 48px -28px rgba(17,24,39,.2)}

.stage::before{
  content:"";
  position:absolute;
  right:28px;
  top:16px;
  width:14px;
  height:14px;
  border-radius:50%;
  border:2px solid #9db6ff}

.sl{
  display:flex;
  gap:16px;
  align-items:center;
  color:var(--mute);
  font-size:13px;
  margin-top:28px;
  flex-wrap:wrap}
.sl input{
  flex:1;
  min-width:160px;
  accent-color:var(--blue);
  height:44px}
.sl b{
  color:var(--ink);
  min-width:90px;
  text-align:right}

.sc{
  color:var(--mute);
  font-size:12px;
  margin-top:4px}

@media(max-width:700px){
  .stage{
  padding:16px;
  transform:none}
.stage .tk{
  transform:none}
}

.strip{
  background:var(--deep2);
  border-block:1px solid var(--line);
  margin-top:56px}
.strip .w{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  padding-block:16px;
  font-size:13px;
  color:var(--mute)}
.strip i{
  width:8px;
  height:8px;
  border-radius:50%;
  border:2px solid var(--blue)}

h1 em,h2.s i{
  font-style:normal;
  color:var(--blue)}

.end{
  position:relative;
  overflow:hidden}
.end>*{
  position:relative;
  z-index:1}
.end::after{
  content:"help.";
  position:absolute;
  right:-8px;
  bottom:-.2em;
  font-weight:700;
  letter-spacing:-.06em;
  line-height:1;
  font-size:clamp(120px,24vw,320px);
  color:var(--blue);
  opacity:.08}

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

/* Keep the explicit preference and the no-script system default in sync. */
:root[data-theme="dark"] {
  --bg: #111823;
  --sf: #1c2634;
  --ink: #edf2fb;
  --mute: #b3bfd0;
  --line: #3c4c63;
  --blue: #9abbff;
  --onb: #10213e;
  --cm: #22364c;
  --pn: #30283e;
  --pnb: #836aa5;
  --pnt: #d1b4ff;
  --ok: #83d8b3;
  --navy: #192a44;
  --deep2: #192331;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #111823;
    --sf: #1c2634;
    --ink: #edf2fb;
    --mute: #b3bfd0;
    --line: #3c4c63;
    --blue: #9abbff;
    --onb: #10213e;
    --cm: #22364c;
    --pn: #30283e;
    --pnb: #836aa5;
    --pnt: #d1b4ff;
    --ok: #83d8b3;
    --navy: #192a44;
    --deep2: #192331;
  }
}