:root{
  --bg: #07080a;
  --text: #ffffff;
  --muted: rgba(255,255,255,0.62);
  --muted2: rgba(255,255,255,0.42);
  --border: rgba(255,255,255,0.07);
  --zinc400: #9f9fa9;
  --indigo400:#7d87ff;
  --red400:#ff6568;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x:hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a{color:inherit;text-decoration:inherit}

/* Layout */
.shell{display:flex;justify-content:center;width:100vw;min-height:100dvh;overflow-x:hidden;padding:16px 12px}
.container{width:100%;max-width:1024px;display:flex;flex-direction:column;gap:0}

.header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 8px}
.brand{font-size:16px;font-weight:500;color:#fff;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand .dim{color:rgba(255,255,255,0.55);font-style:italic}

.support{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:500;
  border-bottom:2px solid rgba(255,255,255,0.20);
  color: rgba(255,255,255,0.62);
  padding-bottom:2px;
  white-space:nowrap;
}
.support:hover{color:rgba(255,255,255,0.72)}
.support svg{width:18px;height:18px;flex:0 0 auto}

.hero{padding:30px 16px 18px;text-align:center;display:flex;flex-direction:column;gap:10px}

.main-text{
  font-feature-settings: "ss08" on, "ss02" on, "liga" off;
  text-align:center;
  text-shadow: 0 4px 4px rgba(0,0,0,0.15);
  -webkit-text-fill-color: transparent;
  background: linear-gradient(90deg, rgba(255,255,255,0.98) -1.59%, #fff 49.71%, rgba(255,255,255,0.80));
  -webkit-background-clip: text;
  background-clip: text;
  font-size: clamp(1.6rem, 5vw + 1rem, 3rem);
  font-style: normal;
  font-weight: 600;
  line-height: 1.2;
  margin:0;
  text-wrap: balance;
}

.sub{
  margin:0 auto;
  max-width: 44rem;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(255,255,255,0.55);
  text-wrap: pretty;
}

.center{display:flex;justify-content:center}
.cardOuter{width:100%;max-width:860px}

/* Card highlight + sparkles */
.glowWrap{position:relative;user-select:none}
.cardGlow{position:absolute;inset:-60px -70px;filter:blur(20px);transform:translateZ(0);pointer-events:none}
.cardGlow::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  clip-path: polygon(0 0, 50% 14%, 100% 0, 92% 50%, 100% 100%, 50% 86%, 0 100%, 8% 50%);
  background: radial-gradient(40% 147% at 50% 46.2%, rgba(255,117,117,0.10) 5%, rgba(154,170,255,0.05) 60%, rgba(255,194,194,0.00) 140%);
}

.sparkles{position:absolute;inset:-45px -135px;pointer-events:none}
.star{position:absolute;background:#fff;border-radius:999px;width:1px;height:1px;opacity:0.18}
.star::before,.star::after{content:"";position:absolute;inset:0;border-radius:inherit;opacity:0;transition:opacity .25s}
.star::before{box-shadow:0 0 4px rgba(50,145,255,0.35)}
.star::after{background:#fff;box-shadow:0 0 6px rgba(50,145,255,0.40)}
.star[data-state="high"]::after{opacity:1}
.star[data-state="medium"]::before{opacity:1}

/* Frame */
.card-frame{position:relative;padding:8px;border:1px solid rgba(255,255,255,0.08);border-radius:24px;transform:translateZ(0);
  box-shadow: 0 8px 32px rgba(0,0,0,0.42);
}
.cardInner{width:100%;min-width:280px;min-height:200px;overflow:hidden;background:#07080a;border:1px solid rgba(255,255,255,0.05);border-radius:16px}
.cardPad{padding:16px;display:flex;flex-direction:column;gap:18px}

.sectionTitle{font-weight:500;font-size:16px;line-height:1.3;color:#fff;margin:0;text-wrap:balance}

.row{display:flex;flex-direction:column;gap:12px}

/* Options */
.options{display:flex;flex-direction:column;gap:12px}

.options-card{
  --key-bg-start-color: rgba(255,255,255,0.06);
  --key-bg-end-color: rgba(255,255,255,0.02);
  background: radial-gradient(75% 75% at 50% 91.9%, var(--key-bg-start-color) 0%, var(--key-bg-end-color) 100%);
  box-shadow:
    0 1.5px 0.5px 2.5px rgba(0,0,0,0.40),
    0 0 0.5px 1px #000,
    inset 0 2px 1px 1px rgba(0,0,0,0.25),
    inset 0 1px 1px 1px rgba(255,255,255,0.20);
  border:1px solid rgba(255,255,255,0.10);
  border-radius: 12px;
  padding: 12px 14px;
  display:flex;
  align-items:center;
  gap:10px;
  transition: all 300ms ease;
}
.options-card:hover{cursor:pointer}
.options-card.selected{
  background: #18181b;
  box-shadow:
    0 1.5px 0.5px 2.5px rgba(0,0,0,0.40),
    0 0 0.5px 1px #000,
    inset 0 2px 1px 1px rgba(0,0,0,0.25),
    inset 0 1px 1px 1px rgba(255,255,255,0.98);
}
.options-card:disabled{opacity:0.5;cursor:not-allowed}

.optIcon{width:20px;height:20px;flex:0 0 auto;object-fit:contain}
.optName{font-size:14px;font-weight:500;color:rgba(255,255,255,0.62);flex:1;min-width:0;text-align:left}
.options-card.selected .optName{color:#fff}

.badge{margin-left:auto;font-size:10px;color:rgba(255,255,255,0.55)}

.check{margin-left:auto;display:none;width:20px;height:20px;flex:0 0 auto;color:rgba(255,255,255,0.65)}
.options-card.selected .check{display:block}

.hint{color:rgba(255,255,255,0.40);font-size:12px;line-height:1.5;margin-top:8px}

/* CTA */
.cta{display:flex;flex-direction:column;gap:10px}

.mainBtn{
  width:100%;
  background:#fff;
  color:#000;
  border:0;
  border-radius:12px;
  padding:10px 14px;
  font-size:16px;
  font-weight:500;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
}
.mainBtn:hover{opacity:0.80;cursor:pointer}

.main-btn-shadow{
  box-shadow:
    0 0 0 2px rgba(0,0,0,0.50),
    0 0 14px rgba(255,255,255,0.20),
    inset 0 -1px 0.4px rgba(0,0,0,0.20),
    inset 0 1px 0.4px rgba(255,255,255,0.85);
}

.metaLine{font-size:14px;font-weight:500;color:var(--zinc400);line-height:1.5}
.metaLine .avail{color:var(--indigo400);font-weight:500}

/* Comparison */
.cmpSection{width:100%;max-width:860px;margin:0 auto;padding:40px 8px 12px}
.cmpHighlight{height:46px;display:flex;align-items:center;justify-content:center;background:radial-gradient(13.65% 50%, rgba(245,48,107,0.10) 0%, rgba(255,103,167,0.00) 100%);border-radius:12px}
.cmpHighlight>span{padding:0 10px;color:var(--red400);letter-spacing:.2px;font-size:14px;font-weight:500;line-height:160%}
.cmpTitle{margin:16px 0 0;text-align:center;font-size:clamp(1.6rem, 4vw, 2.4rem);font-weight:600;line-height:1.15;text-wrap:balance}

.cmpGrid{display:flex;flex-direction:column;gap:0;margin-top:18px}
.cmpCol{flex:1;display:flex;flex-direction:column;gap:12px;padding:12px 0}
.cmpColTitle{font-style:italic;color:rgba(255,255,255,0.55);font-weight:500;font-size:16px}
.cmpList{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.cmpList li{display:flex;justify-content:space-between;gap:12px;color:rgba(255,255,255,0.55);font-size:14px;line-height:1.35}
.cmpList .num{flex:0 0 auto;tabular-nums:tabular-nums}
.cmpTotal{margin-top:4px;padding-top:14px;border-top:2px solid rgba(255,255,255,0.20);display:flex;justify-content:space-between;align-items:baseline;color:#fff}
.cmpTotal .it{font-style:italic;font-weight:500}
.bigNum{font-size:28px;font-weight:500}
.cmpNote{margin-top:4px;color:rgba(255,255,255,0.70);font-size:13px;line-height:1.6;font-style:italic}
.hot{background:rgba(251,44,54,0.10);color:var(--red400);padding:2px 6px;border-radius:6px}

.cmpSep{width:100%;height:2px;background:rgba(255,255,255,0.10)}
.lt1{font-size:32px;font-weight:600;letter-spacing:-0.02em}
.cmpP{color:rgba(255,255,255,0.55);font-size:14px;line-height:1.65;text-wrap:pretty}

/* Use cases */
.useSection{width:100%;max-width:860px;margin:0 auto;padding:34px 8px 8px}
.useHead{text-align:center;display:flex;flex-direction:column;gap:8px}
.useH{margin:0;font-size:clamp(1.4rem, 3.6vw, 2.2rem);font-weight:500;line-height:1.15;text-wrap:balance}
.useSub{margin:0;color:#6a6b6c;font-size:clamp(1.3rem, 3.4vw, 2.0rem);font-weight:500;line-height:1.15;text-wrap:balance}

@keyframes marquee{0%{transform:translateX(0)}100%{transform:translateX(calc(-100% - var(--gap)))}}
.marqueeWrap{margin-top:18px;position:relative;overflow:hidden;border-radius:12px}
.marqueeRow{--gap: 0.5rem;display:flex;gap:var(--gap);overflow:hidden;padding:8px}
.marqueeTrack{display:flex;gap:var(--gap);flex-shrink:0;min-width:100%;animation:marquee var(--duration) linear infinite}
.marqueeRow.reverse .marqueeTrack{animation-direction:reverse}
.chips{display:flex;gap:var(--gap);flex-shrink:0;align-items:center}

.chip{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:12px;border:1px solid rgba(255,255,255,0.10);background:rgba(255,255,255,0.02);color:rgba(255,255,255,0.70);font-size:13px;font-weight:500;white-space:nowrap}
.chip svg{width:16px;height:16px;flex:0 0 auto;stroke:rgba(255,255,255,0.55);fill:none;stroke-width:2}

.marqueeWrap::before,.marqueeWrap::after{content:"";position:absolute;top:0;bottom:0;width:50px;pointer-events:none;z-index:10}
.marqueeWrap::before{left:0;background:linear-gradient(to right, #09090b, transparent)}
.marqueeWrap::after{right:0;background:linear-gradient(to left, #09090b, transparent)}

.ps{margin-top:10px;text-align:center;color:rgba(255,255,255,0.55);font-style:italic;font-size:14px;line-height:1.55}

/* Footer */
.foot{padding:30px 8px 10px;text-align:center;color:rgba(255,255,255,0.55)}
.footLine{display:flex;gap:10px;justify-content:center;align-items:center;flex-wrap:wrap;font-size:14px}
.footLink{display:inline-flex;align-items:center;gap:8px;border-bottom:2px solid rgba(255,255,255,0.20);padding-bottom:2px}
.footLink:hover{color:rgba(255,255,255,0.75)}

/* modal (keep minimal, bottom sheet on mobile) */
.modal{position:fixed;inset:0;display:none;z-index:50}
.modal[aria-hidden="false"]{display:block}
.backdrop{position:absolute;inset:0;background:rgba(0,0,0,0.78)}
.sheet{position:absolute;left:0;right:0;bottom:0;max-height:90dvh;overflow:auto;border:1px solid rgba(255,255,255,0.12);background:rgba(12,12,14,0.96);border-radius:22px 22px 0 0;box-shadow:0 30px 90px rgba(0,0,0,0.55)}
.sheetHead{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid rgba(255,255,255,0.08)}
.sheetTitle{font-weight:800;display:flex;align-items:center;gap:10px;color:rgba(255,255,255,0.92)}
.x{border:0;background:transparent;color:rgba(255,255,255,0.55);font-size:26px;cursor:pointer}
.sheetBody{display:grid;grid-template-columns:1fr;gap:14px;padding:14px}
.steps,.form{border:1px solid rgba(255,255,255,0.08);border-radius:16px;padding:12px;background:rgba(255,255,255,0.02)}
.sTitle{font-weight:900;margin-bottom:6px;color:rgba(255,255,255,0.86)}
.steps ol{margin:0;padding-left:18px;color:rgba(255,255,255,0.62);line-height:1.6}
.steps code{background:rgba(255,255,255,0.04);padding:2px 6px;border-radius:8px;border:1px solid rgba(255,255,255,0.08)}
label{display:block;margin-bottom:12px}
label span{display:flex;align-items:center;gap:8px;font-size:12px;color:rgba(255,255,255,0.65);font-weight:800;margin-bottom:6px}
input,select{width:100%;padding:11px 12px;border-radius:14px;border:1px solid rgba(255,255,255,0.10);background:rgba(0,0,0,0.25);color:rgba(255,255,255,0.92);outline:none}
.row2{display:grid;grid-template-columns:1fr;gap:10px}
.tabs{display:flex;gap:10px;margin-top:2px;margin-bottom:10px}
.tab{flex:1;border:1px solid rgba(255,255,255,0.10);background:rgba(255,255,255,0.02);color:rgba(255,255,255,0.62);padding:9px 10px;border-radius:14px;cursor:pointer;font-weight:800;font-size:12px;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.tab.active{border-color:rgba(255,255,255,0.22);background:rgba(255,255,255,0.06);color:rgba(255,255,255,0.92)}
.tabPane.hidden{display:none}
.warn{margin-top:8px;color:rgba(255,255,255,0.58);font-size:12px;line-height:1.55;border-left:2px solid rgba(255,255,255,0.22);padding-left:10px}
.checkRow{display:flex;align-items:center;gap:10px}
.checkRow input{width:auto}
.tiny{color:rgba(255,255,255,0.48);font-size:12px;line-height:1.45;margin-top:6px}
.save{width:100%;border:0;background:#fff;color:#000;padding:12px 14px;border-radius:14px;font-weight:900;cursor:pointer}
.status{margin-top:10px;color:rgba(255,255,255,0.70);font-size:12px;line-height:1.5;min-height:18px}

@media (min-width: 640px){
  .shell{padding:24px 16px}
  .sub{font-size:16px}
  .cardPad{padding:24px}
  .options{flex-direction:row}
}

@media (min-width: 900px){
  .sheet{position:relative;max-width:900px;margin:6vh auto 0;border-radius:22px}
  .sheetBody{grid-template-columns: 1fr 1.2fr}
  .row2{grid-template-columns:1fr 1fr}
}

@media (prefers-reduced-motion: reduce){
  .options-card{transition:none}
  .star::before,.star::after{transition:none}
}