/* =========================
   高端科技蓝 · 玻璃拟态
   ========================= */
:root{
  --bg0:#070b15;
  --bg1:#0b1220;
  --card: rgba(255,255,255,.06);
  --card2: rgba(255,255,255,.08);
  --border: rgba(255,255,255,.12);
  --text:#eaf1ff;
  --muted: rgba(234,241,255,.68);
  --primary:#3aa7ff;
  --primary2:#22d3ee;
  --danger:#ff6b6b;
  --good:#28d17c;
  --shadow: 0 18px 60px rgba(0,0,0,.55);
  --shadow2: 0 10px 30px rgba(0,0,0,.35);
  --radius: 18px;
  --radius2: 24px;
  --ring: 0 0 0 3px rgba(58,167,255,.18);
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: var(--sans);
  color:var(--text);
  background: radial-gradient(1200px 800px at 20% 10%, rgba(58,167,255,.14), transparent 60%),
              radial-gradient(900px 600px at 80% 25%, rgba(34,211,238,.10), transparent 55%),
              linear-gradient(180deg, var(--bg0), var(--bg1));
  min-height:100vh;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
.muted{color:var(--muted)}
.mono{font-family:var(--mono)}
.container{
  width:min(1120px, calc(100% - 40px));
  margin:0 auto;
}

/* Background */
.bg{position:fixed; inset:0; pointer-events:none; z-index:-1;}
.bg__grid{
  position:absolute; inset:0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity:.14;
  mask-image: radial-gradient(700px 500px at 50% 20%, #000 35%, transparent 70%);
}
.bg__blob{
  position:absolute;
  width: 720px; height: 720px;
  filter: blur(60px);
  opacity:.33;
  border-radius: 999px;
  transform: translateZ(0);
  animation: floaty 12s ease-in-out infinite;
}
.bg__blob--a{
  left:-200px; top:-220px;
  background: radial-gradient(circle at 30% 30%, rgba(58,167,255,.9), rgba(58,167,255,0));
}
.bg__blob--b{
  right:-280px; top:120px;
  background: radial-gradient(circle at 30% 30%, rgba(34,211,238,.85), rgba(34,211,238,0));
  animation-duration: 15s;
}
@keyframes floaty{
  0%,100%{transform: translate3d(0,0,0) scale(1)}
  50%{transform: translate3d(0,18px,0) scale(1.02)}
}

/* Header */
.header{
  position:sticky; top:0; z-index:20;
  backdrop-filter: blur(14px);
  background: rgba(7,11,21,.55);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.header__inner{
  display:flex; align-items:center; gap:16px;
  padding: 14px 0;
}
.brand{display:flex; align-items:center; gap:10px; font-weight:700}
.brand__mark{
  width:34px; height:34px; border-radius:12px;
  background: radial-gradient(circle at 30% 30%, var(--primary), rgba(58,167,255,0) 65%),
              radial-gradient(circle at 70% 70%, var(--primary2), rgba(34,211,238,0) 60%),
              rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}
.nav{display:flex; gap:18px; margin-left:10px}
.nav__link{
  color: rgba(234,241,255,.78);
  font-size:14px;
  padding:8px 10px;
  border-radius: 12px;
}
.nav__link:hover{background: rgba(255,255,255,.06); color: var(--text)}
.header__cta{margin-left:auto; display:flex; gap:10px; align-items:center}
.hamburger{
  display:none;
  width:42px; height:42px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.06);
  cursor:pointer;
}
.hamburger span{display:block; height:2px; background: rgba(234,241,255,.85); margin:7px 10px; border-radius:99px}
.mnav{
  border-top: 1px solid rgba(255,255,255,.08);
  background: rgba(7,11,21,.75);
  backdrop-filter: blur(14px);
  padding: 12px 0;
}
.mnav__link{
  display:block;
  padding: 12px 20px;
  color: rgba(234,241,255,.85);
}
.mnav__link:hover{background: rgba(255,255,255,.06)}
.mnav__link--strong{font-weight:700}

/* Buttons */
.btn{
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 14px;
  cursor:pointer;
  font-weight: 650;
  font-size:14px;
  transition: transform .12s ease, background .12s ease, border-color .12s ease, box-shadow .12s ease;
}
.btn:hover{transform: translateY(-1px); border-color: rgba(255,255,255,.18); background: rgba(255,255,255,.08)}
.btn:active{transform: translateY(0px)}
.btn--primary{
  border-color: rgba(58,167,255,.35);
  background: linear-gradient(135deg, rgba(58,167,255,.92), rgba(34,211,238,.88));
  color:#061020;
  box-shadow: 0 16px 40px rgba(34,211,238,.18);
}
.btn--primary:hover{box-shadow: 0 18px 44px rgba(34,211,238,.22)}
.btn--ghost{
  background: rgba(255,255,255,.04);
}
.btn--block{width:100%}
.btn--lg{padding: 12px 16px; border-radius: 16px}
.btn--tiny{padding: 8px 10px; border-radius: 12px; font-weight:650; font-size:12px}
.iconBtn{
  width:40px; height:40px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.06);
  color: var(--text);
  cursor:pointer;
}

/* Hero */
.hero{padding: 44px 0 18px}
.hero__inner{
  display:grid;
  grid-template-columns: 1.25fr .95fr;
  gap: 26px;
  align-items: start;
}
.pill{
  display:inline-flex; align-items:center; gap:10px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
  color: rgba(234,241,255,.88);
  box-shadow: 0 10px 30px rgba(0,0,0,.18);
  font-size: 13px;
}
.pill__dot{
  width:8px; height:8px; border-radius:99px;
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  box-shadow: 0 0 0 3px rgba(58,167,255,.16);
}
.hero__title{
  margin: 16px 0 10px;
  font-size: clamp(34px, 4.2vw, 52px);
  line-height: 1.06;
  letter-spacing: -.02em;
}
.hero__titleSub{
  font-weight: 800;
  background: linear-gradient(135deg, rgba(234,241,255,.92), rgba(34,211,238,.95));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__desc{
  margin: 0 0 18px;
  color: rgba(234,241,255,.80);
  font-size: 15px;
  line-height: 1.65;
}
.hero__trust{
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 18px 0;
}
.trustCard{
  display:flex; align-items:center; gap:12px;
  padding: 14px 14px;
  border-radius: var(--radius);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow2);
}
.trustCard__icon{font-size:18px}
.trustCard__title{font-weight:800}
.trustCard__sub{color: rgba(234,241,255,.70); font-size:13px; margin-top:2px}
.hero__actions{display:flex; gap:12px; flex-wrap:wrap; margin-top: 10px}
.hero__fineprint{margin-top: 14px; display:flex; gap:8px; flex-wrap:wrap}
.badge{
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  padding: 8px 10px;
  border-radius: 999px;
  color: rgba(234,241,255,.80);
  font-size: 12px;
}

.panel{
  position:sticky;
  top: 86px;
  border-radius: var(--radius2);
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.05));
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.panel__top{
  display:flex; align-items:center; gap:12px;
  padding: 16px 16px;
  border-bottom: 1px solid rgba(255,255,255,.10);
}
.panel__chip{
  font-weight:900;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(34,211,238,.12);
  border: 1px solid rgba(34,211,238,.26);
  color: rgba(234,241,255,.92);
}
.panel__metaTitle{font-weight:900}
.panel__metaSub{color: rgba(234,241,255,.70); font-size:12px; margin-top:2px}
.panel__mock{padding: 16px}
.mockRow{display:flex; justify-content:space-between; gap:12px; padding:10px 0; border-bottom:1px dashed rgba(255,255,255,.10)}
.mockRow:last-child{border-bottom:none}
.mockLabel{color: rgba(234,241,255,.68); font-size:13px}
.mockValue{font-weight:800; font-size:13px; text-align:right}
.mockValue--strong{font-size:16px}
.mockHint{margin-top: 12px; color: rgba(234,241,255,.70); font-size:12px}
.panel__footer{padding: 16px; display:grid; gap:10px; background: rgba(0,0,0,.18)}

/* Sections */
.section{padding: 56px 0}
.section--alt{background: rgba(255,255,255,.03); border-top: 1px solid rgba(255,255,255,.06); border-bottom: 1px solid rgba(255,255,255,.06)}
.section__head{margin-bottom: 18px}
.section__title{margin:0; font-size: 26px; letter-spacing: -.01em}
.section__sub{margin: 8px 0 0; color: rgba(234,241,255,.70); line-height: 1.6}

/* Pricing */
.pricing{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 18px;
}
.priceCard{
  border-radius: var(--radius2);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow2);
  padding: 18px;
  position:relative;
  overflow:hidden;
}
.priceCard:before{
  content:"";
  position:absolute; inset:-2px;
  background: radial-gradient(400px 200px at 30% 0%, rgba(58,167,255,.16), transparent 55%);
  pointer-events:none;
}
.priceCard--hot:before{background: radial-gradient(380px 200px at 30% 0%, rgba(34,211,238,.18), transparent 58%)}
.priceCard--best:before{background: radial-gradient(420px 220px at 30% 0%, rgba(58,167,255,.22), transparent 58%)}
.priceCard__tag{
  display:inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 850;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  color: rgba(234,241,255,.82);
}
.priceCard__tag--hot{
  background: rgba(34,211,238,.14);
  border-color: rgba(34,211,238,.28);
}
.priceCard__tag--best{
  background: rgba(58,167,255,.16);
  border-color: rgba(58,167,255,.30);
}
.priceCard__title{margin: 12px 0 10px; font-size: 16px}
.priceCard__price{
  display:flex; align-items:flex-end; gap:8px;
  margin: 4px 0 12px;
}
.priceCard__currency{font-weight:850; color: rgba(234,241,255,.75); font-size: 12px}
.priceCard__amount{font-weight: 950; font-size: 28px; letter-spacing:-.02em}
.list{margin:0 0 16px; padding-left: 18px; color: rgba(234,241,255,.74); line-height: 1.6; font-size: 13px}

.noteCard{
  margin-top: 14px;
  display:flex; gap:12px;
  border-radius: var(--radius2);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow2);
  padding: 14px 16px;
}
.noteCard__icon{font-size:18px}
.noteCard__title{font-weight:900}
.noteCard__sub{color: rgba(234,241,255,.72); font-size:13px; margin-top:2px}

/* Steps */
.steps{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 18px;
}
.step{
  display:flex; gap:12px;
  border-radius: var(--radius2);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow2);
  padding: 16px;
}
.step__num{
  width:34px; height:34px;
  border-radius: 14px;
  display:flex; align-items:center; justify-content:center;
  font-weight: 950;
  background: rgba(58,167,255,.14);
  border: 1px solid rgba(58,167,255,.26);
}
.step__title{font-weight:900}
.step__sub{color: rgba(234,241,255,.72); font-size:13px; margin-top:4px; line-height:1.6}
.callout{
  margin-top: 14px;
  border-radius: var(--radius2);
  background: rgba(34,211,238,.08);
  border: 1px solid rgba(34,211,238,.18);
  padding: 16px;
}
.callout__title{font-weight:950; margin-bottom: 8px}
.callout__list{margin:0; padding-left: 18px; color: rgba(234,241,255,.78); line-height: 1.7}

/* Guarantee */
.grid3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 18px;
}
.gcard{
  border-radius: var(--radius2);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow2);
  padding: 16px;
}
.gcard__icon{font-size:18px}
.gcard__title{font-weight:950; margin-top:10px}
.gcard__sub{color: rgba(234,241,255,.72); font-size:13px; line-height:1.65; margin-top:6px}

/* FAQ */
.faq{display:grid; gap:10px; margin-top: 18px}
.faqItem{
  border-radius: var(--radius2);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow2);
  padding: 14px 16px;
}
.faqItem__q{cursor:pointer; font-weight:900}
.faqItem__a{margin-top: 10px; color: rgba(234,241,255,.76); line-height: 1.7}
.faqFooter{margin-top: 14px; display:flex; justify-content:center}

/* Footer */
.footer{
  padding: 26px 0 34px;
  border-top: 1px solid rgba(255,255,255,.08);
  background: rgba(0,0,0,.10);
}
.footer__inner{display:flex; justify-content:space-between; gap:20px; align-items:flex-start}
.footer__brand{font-weight:950; display:flex; align-items:center; gap:10px}
.footer__sub{color: rgba(234,241,255,.70); font-size:13px; margin-top: 10px; line-height: 1.6}
.footer__links{display:flex; gap:14px; justify-content:flex-end}
.footer__links a{color: rgba(234,241,255,.72); font-size:13px}
.footer__links a:hover{color: var(--text)}
.footer__legal{margin-top: 10px; text-align:right}

/* Modal */
.modal{
  position:fixed; inset:0;
  display:none;
  z-index:50;
}
.modal.is-open{display:block}
.modal__backdrop{
  position:absolute; inset:0;
  background: rgba(0,0,0,.62);
  backdrop-filter: blur(6px);
}
.modal__panel{
  position:relative;
  width:min(980px, calc(100% - 24px));
  margin: 48px auto;
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.06));
  border: 1px solid rgba(255,255,255,.14);
  box-shadow: var(--shadow);
  overflow:hidden;
  animation: pop .18s ease-out;
}
@keyframes pop{
  from{transform: translateY(10px); opacity:.65}
  to{transform: translateY(0); opacity:1}
}
.modal__head{
  display:flex; align-items:center; justify-content:space-between;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.12);
}
.modal__kicker{
  color: rgba(234,241,255,.72);
  font-size: 12px;
  letter-spacing:.02em;
}
.modal__title h3{margin: 4px 0 0; font-size: 18px}
.modal__body{padding: 18px}

/* Forms */
.form{display:grid; gap:14px; margin-top: 14px}
.field{display:grid; gap:8px}
.field__label{font-weight:900}
.field input, .field textarea{
  width:100%;
  padding: 12px 12px;
  border-radius: 16px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  color: var(--text);
  outline:none;
}
.field input:focus, .field textarea:focus{box-shadow: var(--ring); border-color: rgba(58,167,255,.35)}
.field__hint{color: rgba(234,241,255,.65); font-size: 12px; line-height: 1.6}
.field__error{color: var(--danger); font-size:12px; min-height: 16px}
.field__control{
  display:flex; align-items:center;
  border-radius: 16px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  overflow:hidden;
}
.field__prefix{
  padding: 0 12px;
  color: rgba(234,241,255,.72);
  font-weight: 900;
  border-right: 1px solid rgba(255,255,255,.10);
}
.field__control input{border:none; background:transparent; padding: 12px 12px; flex:1}
.field__control input:focus{box-shadow:none}
.summaryCard{
  border-radius: var(--radius2);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow2);
  padding: 14px 16px;
}
.summaryCard__row{display:flex; justify-content:space-between; gap:12px; padding: 10px 0; border-bottom: 1px dashed rgba(255,255,255,.10)}
.summaryCard__row:last-child{border-bottom:none}
.summaryCard__label{color: rgba(234,241,255,.68); font-size:13px}
.summaryCard__value{font-weight:900; text-align:right}

/* Pay */
.payGrid{display:grid; grid-template-columns: 1.25fr .75fr; gap: 14px}
.payRow{display:flex; justify-content:space-between; gap:12px; padding: 8px 0}
.payLabel{color: rgba(234,241,255,.68); font-size:13px}
.payValue{font-weight:900; text-align:right}
.payAmount{
  border-radius: var(--radius2);
  background: rgba(34,211,238,.08);
  border: 1px solid rgba(34,211,238,.18);
  padding: 14px 16px;
  margin: 10px 0;
}
.payAmount__label{color: rgba(234,241,255,.78); font-weight:900}
.payAmount__value{font-weight: 950; font-size: 30px; letter-spacing:-.02em; margin-top:8px}
.payAmount__sub{color: rgba(234,241,255,.70); font-size:12px; margin-top:6px; line-height:1.6}
.payBox{
  border-radius: var(--radius2);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow2);
  padding: 12px 14px;
  margin-top: 10px;
}
.payBox__head{display:flex; justify-content:space-between; align-items:center; gap:12px}
.payBox__title{font-weight:950}
.payBox__mono{
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 16px;
  background: rgba(0,0,0,.18);
  border: 1px solid rgba(255,255,255,.08);
  word-break: break-all;
  font-size: 12px;
  line-height: 1.6;
}
.timer{
  margin-top: 10px;
  display:flex; justify-content:space-between; align-items:center; gap:14px;
  border-radius: var(--radius2);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow2);
  padding: 12px 14px;
}
.timer__title{font-weight:950}
.timer__sub{color: rgba(234,241,255,.68); font-size:12px; margin-top:2px}
.timer__right{font-family: var(--mono); font-weight: 950; font-size: 18px}
.notice{
  margin-top: 10px;
  display:flex; gap:12px;
  border-radius: var(--radius2);
  background: rgba(255,107,107,.08);
  border: 1px solid rgba(255,107,107,.18);
  padding: 12px 14px;
}
.notice__icon{font-size:18px}
.notice__text{color: rgba(234,241,255,.80); font-size: 13px; line-height:1.6}
.supportLine{margin-top: 10px; text-align:center}
.supportLine a{color: rgba(34,211,238,.92); font-weight:900}
.supportLine a:hover{text-decoration:underline}

.qrCard{
  border-radius: var(--radius2);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow2);
  padding: 14px 14px;
  position:sticky;
  top: 92px;
}
.qrCard__title{font-weight:950}
.qrCard__sub{color: rgba(234,241,255,.70); font-size:12px; margin-top:6px; line-height:1.6}
.qrCard__qr{
  margin-top: 12px;
  border-radius: 18px;
  background: rgba(0,0,0,.18);
  border: 1px solid rgba(255,255,255,.08);
  padding: 12px;
  display:flex; justify-content:center; align-items:center;
  min-height: 220px;
}
.qrCard__tips{margin-top: 12px; display:grid; gap:10px}

/* Success */
.successHead{display:flex; gap:12px; align-items:flex-start; margin-bottom: 12px}
.successIcon{font-size:24px}
.successTitle{font-weight:950}
.successSub{color: rgba(234,241,255,.70); font-size:12px; margin-top:4px; line-height:1.6}

/* Toast */
.modal__toast{
  position:absolute;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(0,0,0,.45);
  border: 1px solid rgba(255,255,255,.10);
  color: rgba(234,241,255,.92);
  font-size: 12px;
  opacity:0;
  pointer-events:none;
  transition: opacity .18s ease, transform .18s ease;
}
.modal__toast.show{
  opacity:1;
  transform: translateX(-50%) translateY(-2px);
}

/* Responsive */
@media (max-width: 980px){
  .hero__inner{grid-template-columns: 1fr; gap: 18px}
  .panel{position:relative; top:auto}
  .pricing{grid-template-columns: repeat(2, 1fr)}
  .steps{grid-template-columns: 1fr}
  .grid3{grid-template-columns: 1fr}
  .footer__inner{flex-direction:column}
  .footer__legal{text-align:left}
  .payGrid{grid-template-columns: 1fr}
  .qrCard{position:relative; top:auto}
}
@media (max-width: 760px){
  .nav{display:none}
  .hamburger{display:block; margin-left:auto}
  .header__cta{display:none}
  .pricing{grid-template-columns: 1fr}
  .hero{padding-top: 26px}
  .modal__panel{margin: 18px auto}
}


/* Note card right area */
.noteCard{align-items:center}
.noteCard__right{margin-left:auto}



/* Confirm nudge (context guidance) */
.nudge{
  margin-top: 10px;
  border-radius: var(--radius2);
  padding: 12px 14px;
  display:flex;
  gap: 12px;
  align-items:flex-start;
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow2);
}
.nudge__icon{font-size: 18px; line-height: 1.2}
.nudge__text{
  color: rgba(234,241,255,.82);
  font-size: 13px;
  line-height: 1.65;
}
.nudge--warn{
  background: rgba(255,107,107,.08);
  border-color: rgba(255,107,107,.18);
}
.nudge--ok{
  background: rgba(40,209,124,.10);
  border-color: rgba(40,209,124,.22);
}



/* Copy highlight (address/amount) */
@keyframes hlGlow{
  0%{ box-shadow: 0 0 0 0 rgba(34,211,238,.0); transform: translateY(0); }
  20%{ box-shadow: 0 0 0 3px rgba(34,211,238,.18); }
  60%{ box-shadow: 0 0 0 4px rgba(58,167,255,.16); transform: translateY(-1px); }
  100%{ box-shadow: 0 0 0 0 rgba(58,167,255,.0); transform: translateY(0); }
}
.hl{
  animation: hlGlow 900ms ease-out;
  border-color: rgba(34,211,238,.28) !important;
}



/* Button micro-interactions */
.btn{
  position: relative;
  overflow: hidden;
  will-change: transform;
}
.btn:focus-visible{
  outline: none;
  box-shadow: var(--ring), var(--shadow2);
}
.btn:hover{transform: translateY(-1px);}
.btn:active{
  transform: translateY(1px) scale(.985);
  box-shadow: 0 10px 24px rgba(0,0,0,.28);
}
.btn::after{
  content:"";
  position:absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.35);
  transform: translate(-50%,-50%) scale(0);
  opacity: 0;
  pointer-events:none;
}
.btn:active::after{
  opacity: .25;
  transform: translate(-50%,-50%) scale(18);
  transition: transform .35s ease, opacity .55s ease;
}
@media (prefers-reduced-motion: reduce){
  .btn, .chip, .blogCard{transition:none !important; animation:none !important;}
  .btn:hover,.btn:active{transform:none}
  .btn:active::after{transition:none}
}



/* Tutorials / Articles */
.blogGrid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 18px;
}
.blogCard{
  border-radius: var(--radius2);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow2);
  padding: 16px;
  position:relative;
  overflow:hidden;
  display:flex;
  flex-direction:column;
  gap: 10px;
  isolation:isolate;
  transition: transform .14s ease, border-color .14s ease, background .14s ease, box-shadow .14s ease;
}
.blogCard:before{
  content:"";
  position:absolute;
  inset:-2px;
  background: radial-gradient(420px 220px at 30% 0%, rgba(58,167,255,.14), transparent 58%);
  pointer-events:none;
  z-index:0;
}
.blogCard > *{position:relative; z-index:1}
.blogCard:hover{
  transform: translateY(-2px);
  border-color: rgba(255,255,255,.18);
  background: rgba(255,255,255,.06);
  box-shadow: 0 18px 46px rgba(0,0,0,.38);
}
.blogCard__meta{display:flex; gap:10px; flex-wrap:wrap}
.kpill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:900;
  padding:6px 10px;
  border-radius:999px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.10);
  color: rgba(234,241,255,.82);
  white-space:nowrap;
}
.blogCard__title{
  margin: 0;
  font-weight: 950;
  font-size: 18px;
  line-height:1.45;
  word-break: break-word;
  text-wrap: balance;
}
.blogCard__desc{
  margin: 0;
  color: rgba(234,241,255,.72);
  font-size: 13px;
  line-height: 1.75;
}
.blogCard__actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top: 6px;
}
.blogCard__actions .btn{display:inline-flex; align-items:center; justify-content:center; white-space:nowrap}

/* Tutorial filters */
.filterBar{
  margin-top: 14px;
  display:flex;
  gap: 12px;
  align-items:flex-start;
  flex-wrap:wrap;
}
.search{
  flex: 1 1 320px;
  display:flex;
  gap: 10px;
  align-items:center;
  padding: 10px 12px;
  border-radius: var(--radius2);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow2);
}
.search__icon{opacity:.85}
.search__input{
  flex:1;
  border:none;
  outline:none;
  background: transparent;
  color: var(--text);
  font-size: 14px;
}
.search__input::placeholder{color: rgba(234,241,255,.52)}
.chips{
  flex: 1 1 420px;
  display:flex;
  gap: 10px;
  flex-wrap:wrap;
  align-items:center;
}
.chip{
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
  color: rgba(234,241,255,.84);
  padding: 8px 12px;
  border-radius: 999px;
  cursor:pointer;
  font-weight: 900;
  font-size: 12px;
  transition: transform .12s ease, background .12s ease, border-color .12s ease, box-shadow .12s ease;
}
.chip:hover{transform: translateY(-1px); background: rgba(255,255,255,.08)}
.chip.is-active{
  background: rgba(34,211,238,.14);
  border-color: rgba(34,211,238,.28);
  box-shadow: 0 0 0 3px rgba(34,211,238,.12);
  color: rgba(234,241,255,.94);
}
.filterInfo{
  margin-top: 10px;
  display:flex;
  align-items:center;
  gap: 10px;
  flex-wrap:wrap;
}
.noResults{
  margin-top: 14px;
  border-radius: var(--radius2);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow2);
  padding: 16px;
}
.noResults__title{font-weight:950}
.noResults__sub{margin-top:6px; color: rgba(234,241,255,.72); font-size: 13px; line-height:1.7}

.prose{
  margin-top: 18px;
  border-radius: var(--radius2);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow2);
  padding: 18px 18px;
}
.prose h1, .prose h2, .prose h3{margin: 18px 0 10px; letter-spacing:-.01em}
.prose h1{font-size: 24px}
.prose h2{font-size: 18px}
.prose h3{font-size: 16px}
.prose p{color: rgba(234,241,255,.80); line-height: 1.85; margin: 10px 0}
.prose ul, .prose ol{color: rgba(234,241,255,.80); line-height:1.85}
.prose li{margin: 6px 0}
.calloutBox{
  margin: 12px 0;
  border-radius: 18px;
  background: rgba(34,211,238,.08);
  border: 1px solid rgba(34,211,238,.18);
  padding: 12px 14px;
}
.calloutBox--warn{background: rgba(255,107,107,.08); border-color: rgba(255,107,107,.18)}
.breadcrumbs{
  margin-top: 18px;
  color: rgba(234,241,255,.70);
  font-size: 13px;
  display:flex;
  gap: 8px;
  flex-wrap:wrap;
  align-items:center;
}
.breadcrumbs a{color: rgba(34,211,238,.92); font-weight:900}
.breadcrumbs a:hover{text-decoration:underline}

@media (max-width: 980px){
  .blogGrid{grid-template-columns:1fr}
}