.course-lesson .lesson-hero-inner{max-width:980px}
.course-lesson .lesson-progress{max-width:1000px;grid-template-columns:repeat(4,1fr)}
.course-lesson .lesson-video-shell{max-width:460px}
.course-lesson .lesson-video-shell video{aspect-ratio:9/16}
.course-lesson .lesson-video-note{display:flex;justify-content:center;gap:8px;flex-wrap:wrap}
.course-lesson .lesson-hero{background:radial-gradient(circle at 82% 8%,rgba(69,198,190,.2),transparent 31%),linear-gradient(145deg,#f6fbfa 0%,#e7f6f1 58%,#fff4e7 100%)}
.course-lesson .lesson-reward-card{background:linear-gradient(135deg,#fff,#effaf6);border-color:rgba(17,138,137,.23);border-top-color:#2ea9a2}
.course-lesson .lesson-reward-icon{background:#e4f7f3}
.course-lesson .lesson-card:nth-child(2) .lesson-card-number{background:var(--d-cyan-dark)}
.course-lesson .lesson-card:nth-child(3) .lesson-card-number{color:var(--d-ink);background:var(--d-orange)}
.course-lesson .lesson-card:nth-child(4) .lesson-card-number{background:#6578d9}
.course-lesson .lesson-card-grid.is-four{grid-template-columns:repeat(2,minmax(0,1fr));max-width:1000px;margin-inline:auto}
.course-kicker-note{max-width:770px;margin:18px auto 0;color:var(--d-muted);font-size:.9rem;text-align:center}
.course-stat-grid{display:none}
.course-stat{padding:23px;text-align:center;background:var(--d-paper);border:1px solid var(--d-line);border-radius:18px}
.course-stat strong{display:block;margin-bottom:4px;color:var(--d-ink);font-size:1.08rem}
.course-stat span{color:var(--d-muted);font-size:.84rem}
.course-method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:21px}
.course-method{padding:23px;background:#fff;border:1px solid var(--d-line);border-radius:20px}
.course-method-number{display:grid;width:44px;height:44px;place-items:center;margin-bottom:21px;color:#fff;background:var(--d-blue);border-radius:14px;font-weight:900}
.course-method:nth-child(2) .course-method-number{background:var(--d-cyan-dark)}
.course-method:nth-child(3) .course-method-number{color:var(--d-ink);background:var(--d-orange)}
.course-method p{margin-bottom:0;color:var(--d-muted)}
.course-callout{display:block;max-width:880px;margin:24px auto 0;padding:18px 20px;color:var(--d-muted);background:#f1f8f6;border:1px solid rgba(17,138,137,.16);border-left:4px solid var(--d-cyan-dark);border-radius:16px}
.course-callout strong{color:var(--d-ink)}
.course-worksheet-copy .d-lead{font-size:1.05rem}
.course-worksheet-note{margin-top:18px;color:var(--d-muted);font-size:.87rem}
.course-success{scroll-margin-top:24px;padding:88px 0;background:linear-gradient(145deg,#f7fbfa,#e7f5f1)}
.course-success-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:21px}
.course-success-card{padding:29px;background:#fff;border:1px solid var(--d-line);border-radius:var(--d-radius)}
.course-success-card p{margin-bottom:0;color:var(--d-muted)}
.course-prompt{margin:16px 0;padding:14px 16px;color:var(--d-blue-dark);background:#eef4ff;border-radius:13px;font-weight:850;text-align:center}
.course-success-result{max-width:850px;margin:30px auto 0;padding:25px;color:#fff;background:var(--d-navy);border-radius:20px;text-align:center}
.course-summary{padding:80px 0;color:#fff;background:var(--d-navy)}
.course-summary-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.course-summary p{color:rgba(255,255,255,.7)}
.course-summary-card{padding:31px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:26px}
.course-summary-card strong{color:#8ed9db}
.course-app-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:64px;align-items:center}
.course-app-stage{display:grid;min-height:420px;place-items:center;background:linear-gradient(145deg,var(--d-blue),var(--d-cyan));border-radius:29px}
.course-app-stage img{width:190px;border-radius:38px;box-shadow:0 22px 48px rgba(0,0,0,.22)}
.course-app-note{margin-top:20px;padding:15px 17px;color:#37505c;background:rgba(255,255,255,.75);border:1px solid rgba(17,112,133,.14);border-radius:15px;font-size:.86rem}
.course-step-back{margin-top:14px;color:rgba(255,255,255,.66);font-size:.84rem}
.course-step-back a{color:#fff;font-weight:800;text-underline-offset:3px}
.course-lesson .lesson-bottom-next{background:linear-gradient(135deg,#0b3440,#0d4b4a)}
.course-lesson .lesson-bottom-next .d-button{background:var(--d-blue);border-color:var(--d-blue)}
@media(max-width:980px){.course-method-grid,.course-stat-grid,.course-success-grid{grid-template-columns:1fr}.course-summary-grid,.course-app-grid{grid-template-columns:1fr}.course-app-stage{max-width:620px}}
@media(max-width:760px){.course-lesson .lesson-card-grid.is-four{grid-template-columns:1fr}}
@media(max-width:780px){.course-lesson .lesson-progress{grid-template-columns:1fr}.course-success{padding:64px 0}.course-summary{padding:64px 0}.course-app-stage{min-height:350px}.course-app-stage img{width:150px}.course-stat{text-align:left}}