.os-center{color:#12233d;background:#f5f3ee;min-height:100svh;padding:0 clamp(20px,6vw,90px) 70px;font-family:Arial,sans-serif}.os-center *{box-sizing:border-box}.os-header{border-bottom:1px solid #dce0e6;justify-content:space-between;align-items:center;gap:15px;padding:24px 0;display:flex}.os-header a{color:#12233d;font-size:14px;text-decoration:none}.os-brand{align-items:center;gap:14px;display:flex}.os-brand img{border-radius:10px;width:60px;height:60px}.os-brand b{color:#d9272e;letter-spacing:3px;font-size:27px;display:block}.os-brand small{margin-top:5px;font-size:11px;display:block}.os-intro{grid-template-columns:1.5fr .7fr;align-items:center;gap:55px;padding:64px 0;display:grid}.os-kicker{letter-spacing:2px;color:#d9272e;font-size:11px;font-weight:700}.os-intro h1{letter-spacing:-2px;margin:19px 0;font-size:clamp(40px,5.3vw,76px);line-height:1.08}.os-intro p:not(.os-kicker){color:#5b6b80;max-width:610px;font-size:20px;line-height:1.6}.os-tags{flex-wrap:wrap;gap:10px;margin-top:25px;display:flex}.os-tags span{background:#fff;border:1px solid #dce0e6;border-radius:30px;padding:10px 15px;font-size:13px}.os-logo-art{background:#f7f7f7;border:1px solid #dee3e8;border-radius:50%;max-width:330px;padding:28px;box-shadow:0 0 0 20px #12233d03}.os-logo-art img{width:100%;height:auto;display:block}.os-access{color:#fff;background:#12233d;border-radius:22px;grid-template-columns:1.2fr 1fr;gap:50px;padding:38px;display:grid}.os-access h2{margin:12px 0;font-size:30px}.os-access p{color:#bbc8da;font-size:17px;line-height:1.6}.os-access form{gap:15px;display:grid}.os-access label{gap:7px;font-size:14px;display:grid}.os-access input{color:#12233d;font:inherit;background:#fff;border:1px solid #647186;border-radius:9px;padding:13px}.os-primary{color:#fff;cursor:pointer;background:#d9272e;border:0;border-radius:10px;padding:15px 22px;font-size:15px;font-weight:700}.os-primary:disabled{opacity:.6}.os-center button:focus-visible,.os-center a:focus-visible{outline-offset:4px;outline:3px solid #f05560}.os-error{color:#ffd6d6!important}.os-section-head{justify-content:space-between;align-items:center;display:flex}.os-section-head button{color:#12233d;cursor:pointer;background:0 0;border:1px solid #ccd4df;border-radius:9px;padding:10px}.os-seminar-card{background:#fff;border:1px solid #dce0e6;border-radius:18px;justify-content:space-between;align-items:center;gap:30px;padding:32px;display:flex}.os-seminar-card h3{margin:12px 0;font-size:27px;line-height:1.3}.os-seminar-card p{color:#596b80;font-size:17px;line-height:1.6}.os-seminar-card small{color:#596b80;font-size:13px}.os-player{background:#12233d;flex-direction:column;height:100svh;display:flex}.os-player-bar{color:#fff;justify-content:space-between;align-items:center;gap:15px;padding:10px 20px;font-size:12px;display:flex}.os-player-bar button{color:#fff;cursor:pointer;background:0 0;border:1px solid #8796af;border-radius:8px;padding:8px 12px}.os-player-bar a{color:#fff;text-decoration:none}.os-player iframe{background:#f6f3ed;border:0;flex:1;width:100%}@media (width<=800px){.os-intro{grid-template-columns:1fr;gap:25px;padding:35px 0}.os-logo-art{justify-self:center;max-width:180px;padding:18px}.os-access{grid-template-columns:1fr;gap:20px;padding:25px}.os-seminar-card{flex-direction:column;align-items:start;padding:24px}.os-brand small{max-width:180px}.os-player-bar span{display:none}.os-intro h1{letter-spacing:-1px}}.os-upcoming{grid-template-columns:1fr 1fr;gap:20px;margin-top:20px;display:grid}.os-upcoming article{background:#f0f1f3;border:1px solid #dce0e6;border-radius:16px;padding:25px}.os-upcoming span,.os-upcoming small{letter-spacing:1px;color:#64758b;font-size:11px}.os-upcoming h3{margin:15px 0;font-size:23px;line-height:1.3}.os-upcoming p{color:#64758b;font-size:15px}@media (width<=700px){.os-upcoming{grid-template-columns:1fr}}.os-guide-button{color:#12233d;white-space:nowrap;border:1px solid #ccd6e1;border-radius:10px;padding:14px;font-size:14px;text-decoration:none}