.gwrap{max-width:860px;margin:0 auto;padding:0 22px}
.toc{position:sticky;top:52px;z-index:9;background:rgba(0,0,0,.78);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.toc ol{display:flex;gap:6px;overflow-x:auto;list-style:none;margin:0 auto;padding:10px 22px;max-width:900px;counter-reset:t;scrollbar-width:none}.toc ol::-webkit-scrollbar{display:none}
.toc li{counter-increment:t;flex:0 0 auto}.toc a{display:block;padding:6px 14px;border-radius:980px;border:1px solid #3a3a3f;color:#d2d2d7;font-size:14px;text-decoration:none;white-space:nowrap}.toc a::before{content:counter(t) "  ";color:var(--blue);font-weight:700}.toc a:hover,.toc a.on{background:#fff;color:#000;border-color:#fff}
.step{display:grid;grid-template-columns:52px 1fr;gap:18px;padding:44px 0;border-top:1px solid var(--line);scroll-margin-top:120px}
.step>.n{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#2f8fff,#ff9d3d);color:#fff;font-weight:700;font-size:19px;display:flex;align-items:center;justify-content:center;position:sticky;top:130px}
.step h2{font-size:clamp(26px,4vw,36px);letter-spacing:-.02em;margin:4px 0 12px}.step h3{font-size:19px;margin:26px 0 8px}
.step p,.step li{color:#c7c7cc;line-height:1.6;font-size:17px}.step ul,.step ol{padding-left:22px}.step li{margin:6px 0}
.step b{color:#fff}.k{display:inline-block;padding:1px 9px;border-radius:8px;background:#1d1d22;border:1px solid #3a3a3f;color:#fff;font-size:.92em;white-space:nowrap}
.opts{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:16px 0}.opts>div{background:#16161a;border:1px solid var(--line);border-radius:18px;padding:16px 18px}.opts h4{margin:0 0 6px;font-size:17px;color:#fff}.opts p{margin:0;font-size:15px}
.tip{background:rgba(47,143,255,.1);border:1px solid rgba(47,143,255,.35);border-radius:16px;padding:12px 16px;margin:16px 0;font-size:15px!important;color:#d2d2d7!important}
.warn{background:rgba(255,157,61,.1);border-color:rgba(255,157,61,.4)}
.shot{margin:20px 0;text-align:center}.shot img{max-width:100%;height:auto;border-radius:18px;border:1px solid var(--line);box-shadow:0 20px 60px rgba(0,0,0,.5)}.shot.ph img{max-width:300px}.shot figcaption{color:var(--mut);font-size:13px;margin-top:8px}
.ctl{width:100%;border-collapse:collapse;margin:12px 0;font-size:15px}.ctl td{padding:10px 8px;border-top:1px solid var(--line);vertical-align:top;color:#c7c7cc}.ctl td:first-child{width:36%;color:#fff;font-weight:600}
.cross{margin:50px 0 70px;padding:26px;border-radius:24px;background:#16161a;border:1px solid var(--line);text-align:center}.cross p{color:var(--mut)}
.faq details{border-top:1px solid var(--line);padding:14px 0}.faq summary{cursor:pointer;font-weight:600;color:#fff;font-size:17px}.faq details p{margin:10px 0 0}
@media(max-width:600px){.step{grid-template-columns:1fr;gap:6px;padding:34px 0}.step>.n{position:static}.ctl td:first-child{width:42%}.toc{top:48px}}