.stg-key-guide{max-width:1000px;color:var(--stg-ink)}
.stg-key-nav,.stg-key-nav>div,.stg-key-downloads,.stg-key-video-tabs{display:flex;flex-wrap:wrap;gap:var(--stg-space-2);align-items:center}
.stg-key-nav{justify-content:space-between;border-bottom:1px solid var(--stg-line);padding-bottom:var(--stg-space-4)}
.stg-key-nav a{padding:10px 12px;border-radius:var(--stg-r1);text-decoration:none;color:var(--stg-muted)}
.stg-key-nav a[aria-current]{background:var(--stg-tint);color:var(--stg-orange);font-weight:700}
.stg-key-hero{padding-block:var(--stg-space-7)}
.stg-key-hero h1{font-size:clamp(32px,5vw,52px);line-height:1.1;max-width:22ch;margin:var(--stg-space-3) 0}
.stg-key-guide p,.stg-key-answer li{line-height:1.65;color:var(--stg-ink2)}
.stg-key-downloads{margin-top:var(--stg-space-5)}
.stg-key-steps{list-style:none;padding:0;display:grid;gap:var(--stg-space-5)}
.stg-key-steps>li{display:grid;grid-template-columns:44px minmax(0,1fr);gap:var(--stg-space-5);padding:var(--stg-space-6);border:1px solid var(--stg-line);border-radius:var(--stg-r3);background:var(--stg-soft);scroll-margin-top:100px}
.stg-key-number{display:grid;place-items:center;width:44px;height:44px;border-radius:var(--stg-r2);background:var(--stg-accent);color:var(--stg-on-accent);font-size:22px;font-weight:700}
.stg-key-steps h3{margin:4px 0 var(--stg-space-4);font-size:26px;line-height:1.2}
.stg-key-nfc{display:block;width:180px;max-width:100%;height:auto;border-radius:var(--stg-r2);margin-top:var(--stg-space-5)}
.stg-key-video,.stg-key-related{margin-block:var(--stg-space-7)}
.stg-key-video video{width:100%;max-height:560px;display:block;margin-top:var(--stg-space-4);border-radius:var(--stg-r2);background:var(--stg-soft)}
.stg-key-video-tabs [aria-pressed=false]{background:var(--stg-surface);color:var(--stg-ink);border:1px solid var(--stg-line-strong)}
.stg-key-search{margin-bottom:var(--stg-space-5)}
.stg-key-search label{display:block;font-weight:700;margin-bottom:var(--stg-space-2)}
.stg-key-search input{box-sizing:border-box;width:100%;min-height:48px;padding:12px 16px;font:inherit;color:var(--stg-ink);background:var(--stg-surface);border:1px solid var(--stg-line-strong);border-radius:var(--stg-r1)}
.stg-key-answer{padding:0 var(--stg-space-3) var(--stg-space-3)}
.stg-key-answer .co-warn,.stg-key-answer .co-tip{padding:var(--stg-space-3);background:var(--stg-tint);border-radius:var(--stg-r1)}
.stg-key-help{padding:var(--stg-space-6);border-radius:var(--stg-r3);background:var(--stg-tint);margin-top:var(--stg-space-7)}
.stg-key-guide :focus-visible{outline:2px solid var(--stg-orange);outline-offset:4px}
.stg-key-guide [hidden]{display:none!important}
@media(max-width:600px){.stg-key-steps>li{padding:var(--stg-space-4);gap:var(--stg-space-3);grid-template-columns:1fr}.stg-key-steps h3{font-size:23px}.stg-key-nav{align-items:flex-start}.stg-key-nav>div{gap:4px}.stg-key-nav a{padding:10px 8px}.stg-key-help{padding:var(--stg-space-4)}}

.stg-key-resend{margin-bottom:var(--stg-space-7);scroll-margin-top:100px}
.stg-key-resend li{line-height:1.65;margin-block:var(--stg-space-2)}

/* FAQ: readable topic groups and resilient answer content at every width. */
.stg-key-guide{box-sizing:border-box;min-width:0;overflow-wrap:anywhere}
.stg-key-topics{display:flex;flex-wrap:wrap;gap:var(--stg-space-2);margin-bottom:var(--stg-space-6)}
.stg-key-topics a{display:flex;align-items:center;min-height:44px;padding:var(--stg-space-2) var(--stg-space-3);border:1px solid var(--stg-line);border-radius:var(--stg-r1);color:var(--stg-ink);text-decoration:none;background:var(--stg-soft)}
.stg-key-topic{margin-block:var(--stg-space-6);scroll-margin-top:120px}
.stg-key-topic h2{font-size:24px;line-height:1.3;margin-bottom:var(--stg-space-3)}
.stg-key-topic .stg-key-question{padding:0;border:1px solid var(--stg-line);border-radius:var(--stg-r2);margin-block:var(--stg-space-2);background:var(--stg-surface);min-width:0}
.stg-key-question summary{padding:var(--stg-space-4);font-weight:600;line-height:1.5;cursor:pointer;overflow-wrap:anywhere}
.stg-key-question[open] summary{color:var(--stg-accent)}
.stg-key-answer{padding:0 var(--stg-space-4) var(--stg-space-4);max-width:72ch;min-width:0}
.stg-key-answer img,.stg-key-answer video,.stg-key-answer iframe{max-width:100%;height:auto}
.stg-key-answer table{display:block;max-width:100%;overflow-x:auto}
.stg-key-answer pre{white-space:pre-wrap;overflow-wrap:anywhere}
.stg-key-answer ul,.stg-key-answer ol{padding-inline-start:24px}
.stg-key-answer a{overflow-wrap:anywhere}
.stg-key-guide .stg-button{box-sizing:border-box;max-width:100%;white-space:normal;overflow-wrap:anywhere;text-align:center}
@media(max-width:600px){.stg-key-hero{padding-block:var(--stg-space-5)}.stg-key-topics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.stg-key-topics a{font-size:14px}.stg-key-question summary{font-size:16px}.stg-key-topic h2{font-size:22px}}

/* Each instruction keeps its matching phone screen alongside the text. */
.stg-key-steps>li{grid-template-columns:44px minmax(0,1fr) 220px;align-items:start}
.stg-key-screen{margin:0;min-width:0;text-align:center}
.stg-key-screen img{display:block;width:100%;height:auto;max-width:220px;margin-inline:auto;border-radius:36px}
.stg-key-screen figcaption{font-size:12px;line-height:1.5;color:var(--stg-muted);margin-top:var(--stg-space-2)}
@media(max-width:800px){.stg-key-steps>li{grid-template-columns:44px minmax(0,1fr)}.stg-key-screen{grid-column:2}}
@media(max-width:600px){.stg-key-steps>li{grid-template-columns:minmax(0,1fr)}.stg-key-screen{grid-column:1}}

/* Activation and everyday unlocking are separate, vertically stacked sections. */
.stg-key-section{margin-block:var(--stg-space-7);scroll-margin-top:100px}
.stg-key-section+.stg-key-section{border-top:2px solid var(--stg-line);padding-top:var(--stg-space-7)}
.stg-key-section__heading{margin-bottom:var(--stg-space-5)}
.stg-key-section__heading h2{font-size:clamp(28px,4vw,36px);line-height:1.15;margin:var(--stg-space-2) 0}
.stg-key-callout{display:grid;grid-template-columns:64px minmax(0,1fr);gap:var(--stg-space-4);align-items:center;margin-block:var(--stg-space-5);padding:var(--stg-space-4);border:2px solid var(--stg-orange);border-radius:var(--stg-r2);background:var(--stg-tint)}
.stg-key-callout__time{font-size:28px;font-weight:700;color:var(--stg-orange);white-space:nowrap}
.stg-key-callout p{margin:0;color:var(--stg-ink)}
.stg-key-callout p>strong:first-child{display:block;margin-bottom:var(--stg-space-2)}
.stg-key-callout--timeout{border-color:var(--stg-line-strong);background:var(--stg-surface)}
@media(max-width:600px){.stg-key-callout{grid-template-columns:minmax(0,1fr);gap:var(--stg-space-2)}}