:root{
  --bg0:#060A16;
  --bg1:#0B1A3A;
  --gradA:#0C3B8B;
  --gradB:#10C4A4;
  --card:#0B132A;
  --text:#EAF1FF;
  --muted:rgba(234,241,255,.72);
  --line:rgba(234,241,255,.12);
  --shadow: 0 24px 60px rgba(0,0,0,.28);
  --radius: 18px;
  --radius2: 26px;
  --primary:#10C4A4;
  --primary2:#2BE7C2;
  --danger:#FF4D6D;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:"Noto Sans TC",system-ui,-apple-system,Segoe UI,Roboto,Arial,"PingFang TC","Microsoft JhengHei",sans-serif;
  background: #060A16;
  color: var(--text);
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
button{font:inherit}

.container{
  width:min(1180px, calc(100% - 48px));
  margin-inline:auto;
}

.topbar{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter: blur(10px);
  background: linear-gradient(90deg, rgba(15,24,60,.88), rgba(10,34,64,.78));
  border-bottom:1px solid rgba(255,255,255,.08);
}
.topbar__inner{
  height:70px;
  display:flex;
  align-items:center;
  gap:18px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  min-width:220px;
}
.brand__mark{
  width:34px;height:34px;border-radius:12px;
  background: radial-gradient(circle at 30% 30%, var(--primary2), var(--primary));
  box-shadow: 0 10px 24px rgba(16,196,164,.25);
}
.brand__text{font-weight:800;letter-spacing:.5px}
.nav{display:flex; gap:18px; margin-left:auto}
.nav a{color:rgba(234,241,255,.84); font-weight:600; font-size:14px}
.nav a:hover{color:#fff}
.nav__cta{
  margin-left:8px;
  border:1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.06);
  color:#fff;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  cursor:pointer;
}
.nav__cta:hover{background: rgba(255,255,255,.10)}

.hero{
  position:relative;
  padding: 72px 0 46px;
  overflow:hidden;
}
.hero__bg{
  position:absolute; inset:-40px -60px -90px -60px;
  background:
    radial-gradient(900px 600px at 12% 22%, rgba(16,196,164,.26), transparent 55%),
    radial-gradient(900px 600px at 76% 6%, rgba(13,90,255,.38), transparent 58%),
    linear-gradient(135deg, rgba(10,21,54,.85), rgba(6,10,22,.95));
  transform: skewY(-3deg);
}
.hero__inner{
  position:relative;
  display:grid;
  grid-template-columns: 1.12fr .88fr;
  gap:42px;
  align-items:center;
}
.hero__kicker{
  margin:0 0 10px;
  font-weight:700;
  letter-spacing:1px;
  color:rgba(234,241,255,.82);
}
.hero__title{
  margin:0 0 12px;
  font-size: clamp(34px, 4.1vw, 54px);
  line-height:1.08;
  letter-spacing:.2px;
}
.hero__titleAccent{color:var(--primary2)}
.hero__sub{
  margin:0 0 16px;
  max-width:54ch;
  color:var(--muted);
  line-height:1.7;
}
.pillList{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:0;
  margin:0 0 18px;
  list-style:none;
}
.pill{
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  border-radius:999px;
  padding:10px 12px;
  display:flex;
  align-items:center;
  gap:8px;
  font-weight:600;
  color:rgba(234,241,255,.90);
}
.pill__dot{
  width:8px;height:8px;border-radius:99px;
  background: var(--primary2);
  box-shadow: 0 0 0 6px rgba(16,196,164,.16);
}

.calc{
  border:1px solid rgba(255,255,255,.12);
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.04));
  border-radius: var(--radius2);
  padding: 14px;
  box-shadow: 0 16px 50px rgba(0,0,0,.28);
  margin-bottom: 16px;
}
.calc__head{display:flex; align-items:baseline; justify-content:space-between; gap:10px; margin-bottom:10px}
.calc__title{font-weight:800}
.calc__hint{font-size:12px; color:rgba(234,241,255,.65)}
.calc__row{display:grid; grid-template-columns: 140px 1fr; gap:12px; align-items:end}
.seg{
  display:flex;
  background: rgba(0,0,0,.22);
  border:1px solid rgba(255,255,255,.10);
  border-radius: 999px;
  padding:4px;
}
.seg__btn{
  flex:1;
  height:36px;
  border-radius: 999px;
  border:0;
  cursor:pointer;
  background: transparent;
  color: rgba(234,241,255,.72);
  font-weight:800;
}
.seg__btn.is-active{
  background: rgba(16,196,164,.22);
  color: #EFFFFB;
  box-shadow: inset 0 0 0 1px rgba(16,196,164,.30);
}
.field{display:flex; flex-direction:column; gap:6px}
.field__label{font-size:12px; color:rgba(234,241,255,.70)}
.field__input{
  height:44px;
  border-radius: 14px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.18);
  color:#fff;
  padding:0 12px;
  outline:none;
}
.field__input:focus{border-color: rgba(16,196,164,.55); box-shadow:0 0 0 4px rgba(16,196,164,.16)}
.calc__result{
  margin-top:10px;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:10px;
}
.kv{
  border:1px dashed rgba(255,255,255,.12);
  border-radius: 14px;
  padding:10px 12px;
  display:flex;
  justify-content:space-between;
  gap:10px;
}
.kv--muted{grid-column:1 / -1}
.kv__k{color:rgba(234,241,255,.70); font-weight:700}
.kv__v{font-weight:900}
.hero__actions{display:flex; gap:12px; margin: 10px 0 12px}
.btn{
  height:44px;
  padding:0 16px;
  border-radius: 14px;
  border:1px solid transparent;
  cursor:pointer;
  font-weight:900;
  letter-spacing:.3px;
}
.btn--primary{
  background: linear-gradient(180deg, var(--primary2), var(--primary));
  color:#052219;
  box-shadow: 0 18px 36px rgba(16,196,164,.22);
}
.btn--primary:hover{filter:brightness(1.03)}
.btn--ghost{
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.14);
  color:#fff;
}
.btn--ghost:hover{background: rgba(255,255,255,.10)}
.btn--lg{height:52px; padding:0 18px; border-radius: 16px}

.trustRow{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  color:rgba(234,241,255,.76);
  font-weight:700;
}
.trust{
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
  border-radius:999px;
  padding:9px 12px;
  display:flex; align-items:center; gap:10px;
}
.trust__badge{
  background: rgba(16,196,164,.18);
  border:1px solid rgba(16,196,164,.28);
  color:#EFFFFB;
  padding:5px 10px;
  border-radius:999px;
  font-size:12px;
}

.hero__visual{justify-self:end}
.visualCard{
  width:min(520px, 100%);
  border-radius: 28px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
  box-shadow: var(--shadow);
}
.visualCard img{display:block; width:100%; height:auto; transform: scale(1.02)}

.section{padding: 76px 0}
.section--alt{background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,0))}
.section__head{display:flex; align-items:flex-end; justify-content:space-between; gap:18px; margin-bottom:22px}
.section__title{margin:0; font-size: clamp(24px, 2.6vw, 34px); letter-spacing:.2px}
.section__desc{margin:6px 0 0; color:var(--muted); line-height:1.7; max-width:68ch}

.featureGrid{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap:16px;
}
.featureStack{display:grid; gap:16px}
.card{
  border-radius: var(--radius2);
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  padding:18px;
  box-shadow: 0 14px 40px rgba(0,0,0,.22);
}
.card--primary{
  background: linear-gradient(180deg, rgba(16,196,164,.14), rgba(255,255,255,.03));
  border-color: rgba(16,196,164,.20);
}
.card__top{display:flex; gap:12px; align-items:flex-start}
.iconBadge{
  width:42px; height:42px;
  border-radius: 14px;
  display:grid; place-items:center;
  background: rgba(16,196,164,.18);
  border:1px solid rgba(16,196,164,.28);
}
.card__title{margin:0; font-size:18px}
.card__sub{margin:6px 0 0; color:var(--muted); line-height:1.7}
.card__list{margin:12px 0 0; padding-left:18px; color:rgba(234,241,255,.86); line-height:1.9}
.tagRow{display:flex; flex-wrap:wrap; gap:10px; margin-top:12px}
.tag{
  padding:7px 10px;
  border-radius: 999px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.18);
  font-weight:800;
  color:rgba(234,241,255,.88);
  font-size:12px;
}

.steps{
  display:grid;
  grid-template-columns: .95fr 1.05fr;
  gap:26px;
  align-items:center;
}
.imgFrame{
  border-radius: 28px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  box-shadow: var(--shadow);
}
.imgFrame img{display:block; width:100%; height:auto}
.stepList{margin: 14px 0 16px; padding:0; list-style:none; display:grid; gap:12px}
.stepList li{
  display:grid;
  grid-template-columns: 52px 1fr;
  gap:12px;
  align-items:flex-start;
  padding:12px;
  border-radius: 20px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
}
.stepNo{
  width:52px;height:52px;border-radius: 18px;
  display:grid; place-items:center;
  background: rgba(13,90,255,.18);
  border:1px solid rgba(13,90,255,.22);
  font-weight:900;
}
.stepList h3{margin:0; font-size:16px}
.stepList p{margin:6px 0 0; color:var(--muted); line-height:1.7}
.steps__actions{display:flex; gap:12px; margin-bottom:12px}
.noteBar{
  border-radius: 18px;
  border:1px solid rgba(16,196,164,.22);
  background: rgba(16,196,164,.10);
  color: rgba(234,241,255,.86);
  padding:12px 14px;
  line-height:1.7;
  font-weight:700;
}

.faqGrid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap:12px;
}
.faq{
  border-radius: 20px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  padding: 12px 14px;
}
.faq summary{
  cursor:pointer;
  font-weight:900;
}
.faq__body{margin-top:10px; color:var(--muted); line-height:1.8}

.ctaStrip{
  padding: 54px 0;
  background: linear-gradient(90deg, rgba(13,90,255,.26), rgba(16,196,164,.22));
  border-top:1px solid rgba(255,255,255,.10);
  border-bottom:1px solid rgba(255,255,255,.10);
}
.ctaStrip__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.ctaStrip h2{margin:0 0 6px; font-size:28px}
.ctaStrip p{margin:0; color:rgba(234,241,255,.82); line-height:1.7; max-width:60ch}

.footer{padding: 26px 0}
.footer__inner{display:flex; align-items:flex-start; justify-content:space-between; gap:16px}
.brand--footer .brand__mark{width:30px;height:30px;border-radius:11px}
.muted{color:var(--muted); margin:8px 0 0; line-height:1.7}

.floatHelp{
  position:fixed;
  right:24px;
  bottom:88px;
  width:56px;
  height:56px;
  border-radius: 18px;
  border:1px solid rgba(255,255,255,.18);
  background: linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.06));
  box-shadow: 0 16px 40px rgba(0,0,0,.26);
  color:#fff;
  cursor:pointer;
  z-index:60;
}
.floatHelp:hover{transform: translateY(-2px)}
.floatHelp__icon{font-size:20px}

.modal{
  position:fixed;
  inset:0;
  display:none;
  z-index:80;
}
.modal.is-open{display:block}
.modal__backdrop{
  position:absolute; inset:0;
  background: rgba(0,0,0,.55);
}
.modal__panel{
  position:relative;
  width:min(560px, calc(100% - 36px));
  margin: 10vh auto 0;
  border-radius: 22px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(10,16,34,.92);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.modal__head{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 14px 10px;
  border-bottom:1px solid rgba(255,255,255,.10);
}
.modal__head h3{margin:0; font-size:18px}
.iconBtn{
  height:38px; width:38px;
  border-radius: 14px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color:#fff;
  cursor:pointer;
}
.modal__body{padding:14px}
.copyBox{
  margin:12px 0 0;
  border-radius: 18px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.18);
  padding:12px;
  display:flex;
  gap:12px;
  align-items:center;
  justify-content:space-between;
}
.copyBox__row{display:flex; flex-direction:column; gap:6px}
.copyBox__label{font-size:12px; color:rgba(234,241,255,.70); font-weight:800}
.copyBox__code{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  color:#EAF1FF;
  word-break:break-all;
}
.modal__actions{display:flex; gap:10px; justify-content:flex-end; margin-top:12px}

@media (max-width: 980px){
  .nav{display:none}
  .hero__inner{grid-template-columns: 1fr; gap:18px}
  .hero__visual{justify-self:start}
  .featureGrid{grid-template-columns: 1fr}
  .steps{grid-template-columns: 1fr}
  .ctaStrip__inner{flex-direction:column; align-items:flex-start}
  .faqGrid{grid-template-columns:1fr}
  .calc__row{grid-template-columns:1fr}
}