:root{--navy:#153449;--blue:#1f5f8b;--green:#2d9c7a;--bg:#f4f8fa;--line:#d9e6ec;--soft:#f7fbfd;--gold:#c58b2a}
*{box-sizing:border-box}body{margin:0;background:var(--bg);font-family:Inter,Arial,sans-serif;color:#294657}.shell{width:min(1120px,calc(100% - 34px));margin:auto}
.m-top{background:#fff;border-bottom:1px solid #dce7ec}.m-top-inner{min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:18px}.m-brand{display:flex;align-items:center;gap:12px;text-decoration:none}.m-brand img{width:118px;max-height:50px;object-fit:contain}.m-brand span{display:flex;flex-direction:column}.m-brand b{color:var(--navy)}.m-brand small{font-size:10px;color:#748792}.m-top nav{display:flex;gap:8px;flex-wrap:wrap}.m-top nav a{min-height:38px;padding:0 12px;display:flex;align-items:center;border-radius:10px;text-decoration:none;border:1px solid #d7e4e9;background:#fff;color:var(--navy);font-size:12px;font-weight:800}.m-top nav .primary{background:var(--blue);border-color:var(--blue);color:#fff}
.m-hero,.lesson-hero{padding:34px 0;background:linear-gradient(135deg,#eef7fa,#f8fbfc);border-bottom:1px solid #dfeaed}.m-hero span,.eyebrow{font-size:11px;font-weight:900;letter-spacing:.1em;color:#1c9577}.m-hero h1,.lesson-hero h1{margin:9px 0 10px;color:var(--navy);font-size:38px}.m-hero p,.lesson-hero p{max-width:900px;line-height:1.65;margin:0}.lesson-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}.lesson-meta span{padding:7px 10px;border-radius:999px;background:#fff;border:1px solid #d9e6ec;font-size:11px;font-weight:800}
.dashboard,.lesson-page{padding:30px 0 55px}.overview{display:grid;grid-template-columns:1.4fr .8fr;gap:20px;margin-bottom:30px}.overview>article,.overview>aside,.content-card{background:#fff;border:1px solid var(--line);border-radius:21px;padding:24px;box-shadow:0 10px 28px rgba(21,52,73,.05)}.overview h2,.content-card h2{margin:0 0 10px;color:var(--navy)}.overview p,.content-card p,.content-card li{line-height:1.7}.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.stats>div{background:#f4fafb;border:1px solid #dce8ed;border-radius:14px;padding:14px}.stats b,.stats span{display:block}.stats b{font-size:24px;color:var(--navy)}.stats span{font-size:11px;color:#6c808b;margin-top:4px}
.section-title{margin:8px 0 18px}.section-title h2{margin:0;color:var(--navy);font-size:30px}.section-title p{margin:5px 0 0;color:#6c818d}.lesson-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.lesson-card{position:relative;display:flex;flex-direction:column;min-height:305px;background:#fff;border:1px solid #d8e5eb;border-radius:22px;padding:23px 23px 21px 27px;box-shadow:0 10px 26px rgba(18,52,73,.045);overflow:hidden}.lesson-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--green)}.lesson-card h3{margin:0 0 10px;font-size:21px;color:var(--navy)}.lesson-card p{margin:0;font-size:14px;line-height:1.7;color:#5a7180}.top{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;margin-bottom:16px}.num{width:62px;height:62px;border-radius:17px;display:grid;place-items:center;background:#eaf5f8;color:#14628e;font-size:22px;font-weight:900}.state{padding:8px 10px;border-radius:999px;background:#e8f7f1;color:#23765a;font-size:10px;font-weight:900;text-transform:uppercase}.tags{display:flex;flex-wrap:wrap;gap:7px;margin:17px 0 18px}.tags span{padding:7px 9px;border-radius:999px;border:1px solid #d8e6ec;background:#f8fbfc;color:#577180;font-size:10px;font-weight:800}.foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;color:#687e89;font-size:12px;font-weight:800}.foot a{min-height:44px;padding:0 16px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(90deg,var(--green),var(--blue));color:#fff;text-decoration:none;font-size:13px;font-weight:900}
.content-card{margin:18px 0}.callout-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.callout,.study-box{border:1px solid #d7e5ec;border-radius:16px;padding:16px;background:#f8fbfd}.callout b,.study-box b{display:block;color:#0a5f80;margin-bottom:5px}.note{background:#edf9f4;border-left:5px solid #2d9c7a;padding:15px;border-radius:12px}.warning-note{background:#fff7e8;border-left:5px solid #e0a22b;padding:15px;border-radius:12px}.privacy-note{background:#f4f0fb;border-left:5px solid #7b5cb8;padding:15px;border-radius:12px}.compare-table{width:100%;border-collapse:collapse;border:1px solid #d7e5ec}.compare-table th,.compare-table td{padding:14px;vertical-align:top;border-bottom:1px solid #deeaef;line-height:1.6}.compare-table th{background:#edf6f9;color:#153449;text-align:left}.compare-table tr:last-child td{border-bottom:0}
.real-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:18px 0}.real-gallery figure{margin:0;border:1px solid #dce4ec;border-radius:16px;overflow:hidden;background:#fff}.real-gallery img{display:block;width:100%;height:260px;object-fit:cover;background:#eef2f6}.real-gallery figcaption{padding:10px 12px;font-size:12px;line-height:1.5;color:#5f7481}.credits{font-size:11px;line-height:1.5;color:#718096;background:#f8fafc;border:1px solid #e5eaf0;border-radius:12px;padding:12px;margin:14px 0}.video-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.video-card{border:1px solid #dbe7ed;border-radius:18px;padding:16px;background:#f8fbfd}.video-card h3{margin:0 0 8px;color:#153449}.video-wrap{position:relative;padding-top:56.25%;border-radius:14px;overflow:hidden;background:#0d2638;margin:12px 0}.video-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.mini-test{display:grid;gap:12px}.q{background:#f8fbfc;border:1px solid #dce8ed;border-radius:14px;padding:15px}.nav-end{display:flex;justify-content:space-between;gap:10px;margin-top:24px}.nav-end a{padding:12px 16px;border-radius:11px;text-decoration:none;font-weight:900}.nav-end .back{background:#eef3f6;color:#153449}.nav-end .next{background:#1f5f8b;color:#fff}.steps{counter-reset:s;display:grid;gap:10px;padding:0;list-style:none}.steps li{counter-increment:s;position:relative;padding:13px 14px 13px 54px;border:1px solid #dce8ed;border-radius:14px;background:#fff}.steps li:before{content:counter(s);position:absolute;left:13px;top:11px;width:29px;height:29px;border-radius:50%;display:grid;place-items:center;background:#1f5f8b;color:#fff;font-weight:900}footer{background:#153449;color:#fff;padding:17px 0}footer .shell{display:flex;justify-content:space-between;gap:20px;font-size:12px}
@media(max-width:900px){.overview,.lesson-grid,.callout-grid,.real-gallery,.video-grid{grid-template-columns:1fr}.m-top-inner{align-items:flex-start;flex-direction:column;padding:12px 0}.m-top nav{width:100%}.real-gallery img{height:auto;max-height:360px}.nav-end{flex-direction:column}}