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12px;display:flex}.ablauf-min{text-align:center;min-width:42px;color:var(--accent);background:#ff7a181a;border-radius:8px;flex:none;padding:6px 4px;font-size:14px;font-weight:800}.ablauf-body{flex:1;min-width:0}.ablauf-title{font-size:14px;font-weight:700;line-height:1.3}.ablauf-detail{color:var(--muted);margin-top:2px;font-size:12.5px;line-height:1.35}.video-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;display:grid}.video-frame{aspect-ratio:16/9;border:1px solid var(--border);background:#000;border-radius:12px;width:100%;position:relative;overflow:hidden}.video-frame iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.video-cap{color:var(--fg);margin-top:7px;font-size:13px;font-weight:600;line-height:1.35;text-decoration:none;display:block}.video-cap:hover{color:var(--accent)}.learn{max-width:640px;margin:0 auto;padding:12px 16px 50px}.learn-head{text-align:center;padding:14px 0 4px}.learn-title{margin:4px 0 2px;font-size:24px;font-weight:800;line-height:1.15}.learn-sec{margin-top:24px}.learn-h2{border-bottom:2px solid var(--accent);margin:0 0 12px;padding-bottom:6px;font-size:17px;font-weight:800}.learn-foot{text-align:center;margin-top:32px;font-weight:800}.present-progress{letter-spacing:.06em;color:var(--accent-2);text-transform:uppercase;margin-bottom:10px;font-size:12px;font-weight:800}.slide{width:100%}.slide-center{text-align:center}.slide-bigtitle{margin:0;font-size:24px;font-weight:800;line-height:1.1}.slide-sub{margin-top:8px}.slide-heading{color:var(--accent);font-size:18px;font-weight:800;line-height:1.2}.slide-points{gap:12px;margin-top:14px;display:grid}.slide-point{align-items:flex-start;gap:12px;font-size:15px;line-height:1.5;display:flex}.slide-video{max-width:760px;margin:14px auto 0}.present-stage{width:84vw;max-width:1100px;margin:2vh auto 0}.present-stage .slide-bigtitle{font-size:8vh}.present-stage .slide-sub{font-size:3.2vh}.present-stage .slide-heading{font-size:5vh}.present-stage .slide-point{font-size:3.4vh}.present-stage .lern-dot{width:1.4vh;height:1.4vh;margin-top:1.2vh}.present-stage .cloze-text{font-size:3.6vh;line-height:1.9}.present-phone .slide{max-width:460px}.present-phone .slide-bigtitle{font-size:26px}.present-preview{background:var(--bg);border:1px solid var(--border);border-radius:12px;max-height:48vh;margin-top:12px;padding:14px;overflow-y:auto}.present-preview .slide-bigtitle{font-size:22px}.video-list{gap:10px;display:grid}.video-item{background:var(--bg);border:1px solid var(--border);color:var(--fg);border-radius:12px;align-items:center;gap:12px;padding:12px 14px;text-decoration:none;display:flex}.video-item:hover{border-color:var(--accent)}