:root{--s13-bg:#ffffff;--s13-surface:#f4f7fb;--s13-ink:#141414;--s13-muted:#5a6272;--s13-navy:#222f3e;--s13-accent:#1857b2;--s13-accent-deep:#123f82;--s13-line:#dce5f0;--s13-radius:14px;--s13-btn-radius:6px;--s13-font:system-ui,-apple-system,'Segoe UI',Roboto,sans-serif}
.s13-bar{background:var(--s13-navy);color:#fff;text-align:center;padding:12px 16px;font-family:var(--s13-font)}
.s13-bar strong{display:block;font-size:clamp(16px,3.5vw,22px);letter-spacing:.02em}
.s13-bar span{font-size:14px;opacity:.85}
.s13-wrap{max-width:980px;margin:0 auto;padding:0 clamp(16px,4vw,24px);font-family:var(--s13-font);color:var(--s13-ink)}
.s13-art{padding:clamp(28px,6vw,56px) 0;background:var(--s13-bg)}
.s13-art h1{font-size:clamp(28px,6vw,44px);line-height:1.15;margin:0 auto 16px;text-align:center;max-width:760px}
.s13-sum{font-size:clamp(16px,2.6vw,19px);line-height:1.55;color:var(--s13-muted);text-align:center;margin:0 auto 28px;max-width:760px}
.s13-hero{width:100%;max-width:760px;height:auto;border-radius:var(--s13-radius);display:block;margin:0 auto 40px}
.s13-reason{display:grid;grid-template-columns:1fr;gap:16px;align-items:center;margin:0 0 clamp(32px,6vw,56px)}
.s13-reason h2{font-size:clamp(21px,4.2vw,28px);line-height:1.25;margin:0 0 12px}
.s13-reason p{font-size:clamp(16px,2.5vw,18px);line-height:1.65;margin:0 0 14px}
.s13-reason img,.s13-ph{width:100%;height:auto;border-radius:var(--s13-radius);display:block;margin:0}
.s13-reason__media{min-width:0}
@media (min-width:750px){.s13-reason.has-media{grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,48px)}.s13-reason.has-media.is-flip .s13-reason__media{order:-1}}
.s13-ph{aspect-ratio:4/3;background:var(--s13-surface);border:1px dashed var(--s13-line);display:flex;align-items:center;justify-content:center;color:var(--s13-muted);font-size:14px}
.s13-narrow{max-width:760px;margin-left:auto;margin-right:auto}
.s13-cta-box{background:var(--s13-surface);border:1px solid var(--s13-line);border-radius:var(--s13-radius);padding:clamp(20px,4vw,32px);margin:8px auto 44px;max-width:760px;text-align:center}
.s13-cta-box h3{font-size:clamp(20px,4vw,26px);margin:0 0 8px}
.s13-cta-box p{margin:0 0 14px;color:var(--s13-muted);line-height:1.5}
.s13-form{display:flex;flex-direction:column;gap:10px;max-width:420px;margin:0 auto}
.s13-form select{padding:14px;border:1px solid var(--s13-line);border-radius:var(--s13-btn-radius);font-size:16px;background:#fff;min-height:48px}
.s13-btn{display:block;width:100%;background:var(--s13-accent);color:#fff;border:0;border-radius:var(--s13-btn-radius);padding:16px 20px;font-size:clamp(17px,3vw,20px);font-weight:700;cursor:pointer;text-align:center;text-decoration:none;min-height:48px}
.s13-btn:hover{background:var(--s13-accent-deep)}
.s13-btn[disabled]{opacity:.5;cursor:not-allowed}
.s13-trust{display:flex;flex-wrap:wrap;gap:6px 16px;justify-content:center;margin:14px 0 0;padding:0;list-style:none;font-size:14px;color:var(--s13-muted)}
.s13-trust li:before{content:'\2713\00a0';color:var(--s13-accent);font-weight:700}
.s13-faq{margin:0 auto 8px;max-width:760px}
.s13-faq details{border-bottom:1px solid var(--s13-line);padding:14px 0}
.s13-faq summary{cursor:pointer;font-weight:600;font-size:17px}
.s13-faq details p{margin:10px 0 0;line-height:1.6;color:var(--s13-muted)}
.s13-note{font-size:13px;line-height:1.5;color:var(--s13-muted);text-align:center;margin:32px auto;max-width:760px}
.s13-sticky{display:none}
@media (max-width:749px){.s13-sticky{display:block;position:fixed;left:0;right:0;bottom:0;z-index:999;padding:12px 16px;background:var(--s13-accent);color:#fff;text-align:center;font-weight:700;text-decoration:none;box-shadow:0 -2px 12px rgba(0,0,0,.12);opacity:0;transform:translateY(100%);transition:.25s}.s13-sticky.is-visible{opacity:1;transform:translateY(0)}}