:root{color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,"Noto Sans TC",system-ui,sans-serif;color:#14233b;background:#f4f6fa}
*{box-sizing:border-box}body{margin:0}main{width:min(100%,660px);margin:auto;padding:20px 16px 60px}
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#14233b,#193d57 70%,#146b64);color:#fff;border-radius:24px;padding:34px 28px 32px;box-shadow:0 18px 45px #14233b29}
.hero:after{content:"";position:absolute;right:-70px;top:-80px;width:240px;height:240px;border:1px solid #ffffff36;border-radius:50%;box-shadow:0 0 0 45px #ffffff0b,0 0 0 90px #ffffff09;pointer-events:none}
.eyebrow,.section-label{font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.eyebrow{color:#a3eee1}
.eyebrow span{display:inline-block;margin-left:7px;padding:3px 8px;border:1px solid #a3eee180;border-radius:999px;letter-spacing:0;text-transform:none}
h1{position:relative;font-size:clamp(40px,11vw,64px);line-height:1.08;letter-spacing:-.05em;margin:18px 0 16px;z-index:1}h2{font-size:24px;letter-spacing:-.03em;margin:8px 0 20px}
.hero p{position:relative;z-index:1;line-height:1.7;max-width:430px;margin:0;color:#e3eff3}.chips{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}.chips span{border:1px solid #ffffff70;border-radius:99px;padding:7px 11px;font-size:12px}
.card{background:#fff;border:1px solid #dfe6ee;border-radius:20px;margin-top:16px;padding:26px 24px;box-shadow:0 4px 20px #14233b0a}.section-label{color:#148068}
.steps{list-style:none;counter-reset:step;margin:0 0 25px;padding:0}.steps li{position:relative;counter-increment:step;padding:0 0 22px 43px;line-height:1.7}.steps li:last-child{padding-bottom:0}.steps li:before{content:counter(step);position:absolute;left:0;top:0;width:28px;height:28px;display:grid;place-items:center;background:#e5f4f0;color:#147d62;border-radius:50%;font-size:13px;font-weight:800}.steps li:not(:last-child):after{content:"";position:absolute;left:13px;top:32px;bottom:5px;border-left:1px solid #d7e2e8}
button{font:inherit;cursor:pointer;touch-action:manipulation}.primary,.secondary{width:100%;border:0;border-radius:12px;padding:14px 18px;font-weight:800}.primary{background:#147d62;color:white;box-shadow:0 6px 14px #147d6233}.primary:hover{background:#0f664f}.secondary{background:#e5f4f0;color:#12694f}.primary:disabled,.secondary:disabled{opacity:.55;cursor:default}
.feedback{min-height:1.4em;margin:10px 0 0;color:#12694f;font-size:13px}.feedback.error{color:#ac3232}.backup{border-top:1px solid #e4e9ee;margin-top:16px;padding-top:16px}.backup summary{cursor:pointer;font-weight:700}.backup p{font-size:13px;line-height:1.7;color:#526074}.plain-link{color:#12694f;font-weight:700;text-underline-offset:3px}.note{background:#eaf4f5;border-left:4px solid #147d62;border-radius:8px;margin-top:18px;padding:17px 18px;line-height:1.7}.note strong{display:block;margin-bottom:4px}footer{margin-top:24px;text-align:center;color:#657286;font-size:12px;line-height:1.6}code{font-size:.9em;background:#edf2f4;border-radius:4px;padding:2px 4px;overflow-wrap:anywhere}
@media(max-width:420px){main{padding:12px 12px 40px}.hero{padding:28px 22px}.card{padding:23px 19px}}