:root{--stepper-bg:#1e1e1e;--stepper-media-bg:#121212;--stepper-border:#333333;--stepper-border-subtle:#2a2a2a;--stepper-radius:12px;--stepper-accent:var(--accent-color, #3b82f6);--stepper-text-primary:#f3f4f6;--stepper-text-secondary:#9ca3af;--stepper-btn-bg:#2a2f3d;--stepper-btn-hover-bg:#32394a;--stepper-btn-border:#3b4252}.tutorial-stepper{display:block;width:100%;max-width:88%;margin:2.5rem auto;background-color:var(--stepper-bg);border:1px solid var(--stepper-border);border-radius:var(--stepper-radius);overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.35);user-select:none;-webkit-user-select:none;outline:none;transition:border-color .2s ease,box-shadow .2s ease}.tutorial-stepper:focus-visible{box-shadow:0 0 0 2px var(--stepper-accent),0 4px 20px rgba(0,0,0,.45)}.stepper-top-bar{display:flex;align-items:center;justify-content:space-between;padding:8px 16px;background-color:var(--stepper-bg);border-bottom:1px solid var(--stepper-border-subtle);box-sizing:border-box}.stepper-count-badge{display:inline-block;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--stepper-accent);background-color:rgba(59,130,246,.12);padding:2px 8px;border-radius:4px;line-height:1.4}.stepper-view-toggle{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:6px;border:1px solid var(--stepper-btn-border);background-color:var(--stepper-btn-bg);color:#d1d5db;font-size:.78rem;font-weight:600;cursor:pointer;outline:none;transition:all .15s ease}.stepper-view-toggle:hover{background-color:var(--stepper-btn-hover-bg);border-color:var(--stepper-accent);color:#fff}.stepper-view-toggle:focus-visible{outline:2px solid var(--stepper-accent);outline-offset:1px}.stepper-view-toggle svg{flex-shrink:0}.tutorial-stepper:not(.is-list-view) .stepper-list-view{display:none!important}.tutorial-stepper.is-list-view .stepper-slider-view{display:none!important}.tutorial-stepper.is-list-view .toggle-icon-list{display:none!important}.tutorial-stepper.is-list-view .toggle-icon-slider{display:inline-flex!important}.stepper-media-wrap{position:relative;width:100%;aspect-ratio:16/9;background-color:var(--stepper-media-bg);overflow:hidden;display:block}.stepper-slide{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;padding:16px;box-sizing:border-box;opacity:0;pointer-events:none;transform:scale(.985);transition:opacity .25s cubic-bezier(.4,0,.2,1),transform .25s cubic-bezier(.4,0,.2,1)}.stepper-slide.is-active{opacity:1;pointer-events:auto;transform:scale(1)}.stepper-img,.post-content .stepper-img,.entry-content .stepper-img{width:auto!important;height:100%!important;max-width:100%!important;max-height:100%!important;object-fit:contain!important;display:block!important;margin:0 auto!important;border:1px solid rgba(255,255,255,.18)!important;border-radius:16px!important;box-shadow:0 4px 24px rgba(0,0,0,.55)!important;box-sizing:border-box!important}.stepper-indicators{display:flex;align-items:center;gap:8px;padding:10px 16px;background-color:var(--stepper-bg);border-top:1px solid var(--stepper-border-subtle);border-bottom:1px solid var(--stepper-border-subtle);width:100%;box-sizing:border-box}.stepper-indicator-bar{flex:1;height:5px;border-radius:3px;background-color:#333;border:none;padding:0;margin:0;cursor:pointer;outline:none;transition:background-color .2s ease,transform .15s ease}.stepper-indicator-bar:hover{background-color:#4b5563}.stepper-indicator-bar.is-active{background-color:var(--stepper-accent)}.stepper-indicator-bar:focus-visible{outline:2px solid var(--stepper-accent);outline-offset:2px}.stepper-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 20px;background-color:var(--stepper-bg);box-sizing:border-box}.stepper-info{flex:1;min-height:85px;position:relative;min-width:0}.stepper-text-pane{position:absolute;top:0;left:0;width:100%;opacity:0;pointer-events:none;transform:translateY(6px);transition:opacity .2s ease,transform .2s ease}.stepper-text-pane.is-active{position:relative;opacity:1;pointer-events:auto;transform:translateY(0)}.stepper-badge{display:inline-block;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--stepper-accent);background-color:rgba(59,130,246,.14);padding:2px 8px;border-radius:4px;margin-bottom:6px;line-height:1.4}.stepper-title{margin:0 0 4px!important;padding:0!important;font-size:1.15rem!important;font-weight:600!important;color:var(--stepper-text-primary)!important;line-height:1.3!important}.stepper-description{margin:0!important;padding:0!important;font-size:.9rem!important;color:var(--stepper-text-secondary)!important;line-height:1.5!important}.stepper-controls{display:flex;align-items:center;gap:10px;flex-shrink:0}.stepper-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:38px;min-width:88px;padding:0 16px;border-radius:8px;font-size:.875rem;font-weight:600;cursor:pointer;outline:none;box-sizing:border-box;transition:background-color .15s ease,border-color .15s ease,color .15s ease,transform .1s ease;border:1px solid var(--stepper-btn-border);background-color:var(--stepper-btn-bg);color:#e5e7eb}.stepper-btn:hover:not(:disabled){background-color:var(--stepper-btn-hover-bg);border-color:var(--stepper-accent);color:#fff}.stepper-btn:active:not(:disabled){transform:scale(.97)}.stepper-btn:focus-visible{outline:2px solid var(--stepper-accent);outline-offset:2px}.stepper-btn:disabled{opacity:.35;cursor:not-allowed;pointer-events:none;border-color:#2a2a2a;background-color:#1a1a1a;color:#555}.stepper-list-view{background-color:var(--stepper-bg)}.stepper-list-items{list-style:none;margin:0;padding:0}.stepper-list-item{display:flex;flex-direction:column;gap:16px;padding:24px;border-bottom:1px solid var(--stepper-border-subtle);box-sizing:border-box}.stepper-list-item:last-child{border-bottom:none}.stepper-list-content{width:100%}.stepper-list-media{width:100%;aspect-ratio:16/9;background-color:var(--stepper-media-bg);border-radius:8px;overflow:hidden;display:flex;align-items:center;justify-content:center;padding:16px;box-sizing:border-box;border:1px solid rgba(255,255,255,5%)}.stepper-list-img,.post-content .stepper-list-img,.entry-content .stepper-list-img{width:auto!important;height:100%!important;max-width:100%!important;max-height:100%!important;object-fit:contain!important;display:block!important;margin:0 auto!important;border:1px solid rgba(255,255,255,.18)!important;border-radius:16px!important;box-shadow:0 4px 24px rgba(0,0,0,.55)!important;box-sizing:border-box!important}@media(max-width:640px){.tutorial-stepper{max-width:100%;margin:1.5rem auto;border-radius:8px}.stepper-slide,.stepper-list-media{padding:10px!important}.stepper-img,.stepper-list-img{border-radius:12px!important}.stepper-footer{flex-direction:column;align-items:stretch;gap:14px;padding:14px}.stepper-info{min-height:95px}.stepper-controls{justify-content:flex-end;width:100%}.stepper-btn{height:44px;min-height:44px;min-width:96px;font-size:.95rem}.stepper-list-item{padding:16px;gap:12px}}