:root{--bg:#f6f7f9;--card:#fff;--ink:#16202b;--ink2:#4b5b6c;--ink3:#8593a3;--line:#dde3ea;--accent:#1f3f74;--accent2:#2f62b3;--soft:#e8eef8;--gold:#f2b84b;
--sans:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic",system-ui,sans-serif}
@media (prefers-color-scheme:dark){:root{--bg:#11161c;--card:#1a2129;--ink:#e8edf2;--ink2:#a9b6c4;--ink3:#74828f;--line:#2c3540;--accent:#8fb3ef;--accent2:#8fb3ef;--soft:#1f2c40}}
*{box-sizing:border-box}html,body{margin:0}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:var(--accent2)}
.doc main{max-width:760px;margin:0 auto;padding:28px 20px 60px}
.doc h1{font-size:28px;margin:.4em 0}.doc h2{font-size:18px;margin:1.8em 0 .4em}
.muted{color:var(--ink3);font-size:14px}
/* LP */
.hero{min-height:100dvh;display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:40px;padding:40px 6vw;background:radial-gradient(1200px 600px at 80% 20%,var(--soft),transparent)}
.hero .ic{width:84px;height:84px;border-radius:20px;box-shadow:0 8px 28px rgba(31,63,116,.3)}
.hero h1{font-size:clamp(40px,6vw,76px);line-height:1.1;margin:18px 0 8px;font-weight:900}
.hero h1 small{display:block;font-size:.32em;color:var(--ink2);font-weight:700;letter-spacing:.06em;margin-top:6px}
.hero p.lead{font-size:clamp(17px,1.6vw,21px);color:var(--ink2);margin:0 0 26px;max-width:32em}
.cta{display:flex;flex-wrap:wrap;gap:12px}
.cta a{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:14px;font-weight:800;text-decoration:none;border:1px solid var(--line);background:var(--card);color:var(--ink)}
.cta a.main{background:var(--accent);border-color:var(--accent);color:#fff}
@media (prefers-color-scheme:dark){.cta a.main{color:#0e1622}}
.cta a span{font-size:12px;font-weight:600;opacity:.75;display:block;line-height:1.2}
.phones{display:flex;gap:18px;justify-content:center}
.phones img{width:min(42%,260px);border-radius:28px;border:6px solid #11161c;box-shadow:0 20px 50px rgba(20,32,44,.25)}
.phones img:nth-child(2){margin-top:60px}
.feat{padding:70px 6vw;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feat div{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px}
.feat b{display:block;font-size:19px;margin:10px 0 4px}.feat p{margin:0;color:var(--ink2);font-size:15px}
.feat svg{width:40px;height:40px;color:var(--accent2)}
.steps{padding:10px 6vw 70px}
.steps h2{font-size:28px;margin:0 0 18px}
.steps ol{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:12px;counter-reset:s}
.steps li{counter-increment:s;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 16px 14px 58px;position:relative}
.steps li::before{content:counter(s);position:absolute;left:14px;top:14px;width:32px;height:32px;border-radius:50%;background:var(--soft);color:var(--accent);display:grid;place-items:center;font-weight:900}
.steps li b{display:block}.steps li span{color:var(--ink2);font-size:14px}
.chord{margin:0 6vw 70px;background:var(--accent);color:#fff;border-radius:22px;padding:30px 34px;display:grid;grid-template-columns:auto 1fr;gap:24px;align-items:center}
.chord h3{margin:0 0 6px;font-size:22px}.chord p{margin:0;opacity:.9}
@media (prefers-color-scheme:dark){.chord{color:#0e1622}}
footer{padding:30px 6vw 50px;color:var(--ink3);font-size:14px;display:flex;flex-wrap:wrap;gap:18px}
footer a{color:var(--ink2)}
@media (max-width:860px){.hero{grid-template-columns:1fr;min-height:auto;padding-top:30px}.feat{grid-template-columns:1fr 1fr}.steps ol{grid-template-columns:1fr}.chord{grid-template-columns:1fr}}
@media (max-width:520px){.feat{grid-template-columns:1fr}}