@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";:root{color-scheme:light dark;--bg: #f3f4f8;--surface: #ffffff;--surface-2: #f7f8fb;--surface-3: #eef0f5;--line: #e2e5ed;--line-2: #d0d5e0;--text: #0f1117;--text-2: #3d4454;--muted: #6b7280;--brand: #e5001a;--brand-hover: #cc0017;--brand-soft: rgba(229, 0, 26, .08);--brand-ring: rgba(229, 0, 26, .22);--ok: #059669;--ok-soft: rgba(5, 150, 105, .09);--err: #dc2626;--err-soft: rgba(220, 38, 38, .09);--warn: #d97706;--warn-soft: rgba(217, 119, 6, .09);--busy: #2563eb;--busy-soft: rgba(37, 99, 235, .09);--radius-sm: .5rem;--radius: .875rem;--radius-lg: 1.25rem;--shadow-xs: 0 1px 2px rgba(0,0,0,.05);--shadow-sm: 0 1px 4px rgba(0,0,0,.06), 0 4px 12px rgba(0,0,0,.04);--shadow: 0 2px 8px rgba(0,0,0,.06), 0 12px 32px rgba(0,0,0,.06)}@media(prefers-color-scheme:dark){:root{--bg: #0b0c10;--surface: #14161e;--surface-2: #1a1c26;--surface-3: #21232f;--line: #272a38;--line-2: #323547;--text: #eef0f6;--text-2: #b0b7c9;--muted: #8891a8;--brand: #ff2d4a;--brand-hover: #ff4d66;--brand-soft: rgba(255, 45, 74, .12);--brand-ring: rgba(255, 45, 74, .28);--ok: #34d399;--ok-soft: rgba(52, 211, 153, .12);--err: #f87171;--err-soft: rgba(248, 113, 113, .12);--warn: #fbbf24;--warn-soft: rgba(251, 191, 36, .12);--busy: #60a5fa;--busy-soft: rgba(96, 165, 250, .12);--shadow-sm: 0 1px 4px rgba(0,0,0,.25), 0 4px 12px rgba(0,0,0,.2);--shadow: 0 2px 8px rgba(0,0,0,.3), 0 16px 40px rgba(0,0,0,.28)}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}html,body,#root{min-height:100dvh}body{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;font-size:15px;line-height:1.6;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button,input,a,select,textarea{font:inherit}button{-webkit-tap-highlight-color:transparent;cursor:pointer}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.app-shell{display:flex;flex-direction:column;min-height:100dvh}.page-content{flex:1;width:100%;max-width:680px;margin:0 auto;padding:1.5rem 1rem 4rem;display:flex;flex-direction:column;gap:1rem}.site-header{position:sticky;top:0;z-index:10;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow-xs);padding:env(safe-area-inset-top,0) 0 0}.site-header__inner{max-width:860px;margin:0 auto;padding:.85rem 1.25rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}.brand{display:flex;align-items:center;gap:.65rem;flex-shrink:0}.brand__icon{display:grid;place-items:center;width:2.2rem;height:2.2rem;border-radius:.6rem;background:var(--brand);flex-shrink:0}.brand__icon svg{width:1rem;height:1rem;fill:#fff}.brand__name{font-size:1.05rem;font-weight:700;color:var(--text)}.brand__tagline{font-size:.75rem;color:var(--muted);font-weight:400}.header-meta{display:flex;gap:1.25rem;align-items:center}.header-meta__item{display:flex;flex-direction:column;align-items:center;gap:.05rem}.header-meta__value{font-size:.85rem;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums}.header-meta__label{font-size:.68rem;color:var(--muted)}.hero{text-align:center;padding:2rem 1rem .5rem}.hero__title{font-size:clamp(1.5rem,4vw,2rem);font-weight:800;text-wrap:balance;line-height:1.2;margin-bottom:.6rem;color:var(--text)}.hero__title em{font-style:normal;color:var(--brand)}.hero__sub{font-size:.95rem;color:var(--muted);text-wrap:pretty;max-width:480px;margin:0 auto 1.5rem}.feature-pills{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;margin-bottom:.5rem}.pill{display:inline-flex;align-items:center;gap:.35rem;padding:.3rem .75rem;border-radius:999px;font-size:.78rem;font-weight:500;background:var(--surface);border:1px solid var(--line);color:var(--text-2)}.pill__dot{width:.45rem;height:.45rem;border-radius:50%;background:var(--ok);flex-shrink:0}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden}.card__body{padding:1.25rem}.card__header{display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:.9rem 1.25rem;border-bottom:1px solid var(--line)}.card__title{font-size:.95rem;font-weight:700;display:flex;align-items:center;gap:.5rem}.card__title-icon{display:grid;place-items:center;width:1.65rem;height:1.65rem;border-radius:.45rem;background:var(--surface-3);font-size:.85rem;flex-shrink:0}.card--ok{border-color:color-mix(in srgb,var(--ok) 30%,var(--line) 70%)}.card--ok .card__header{background:var(--ok-soft);border-bottom-color:color-mix(in srgb,var(--ok) 20%,var(--line) 80%)}.card--err{border-color:color-mix(in srgb,var(--err) 30%,var(--line) 70%)}.card--err .card__header{background:var(--err-soft);border-bottom-color:color-mix(in srgb,var(--err) 20%,var(--line) 80%)}.step-badge{display:inline-flex;align-items:center;justify-content:center;width:1.5rem;height:1.5rem;border-radius:50%;font-size:.72rem;font-weight:700;flex-shrink:0;background:var(--surface-3);color:var(--muted);border:1.5px solid var(--line)}.step-badge--active{background:var(--brand-soft);color:var(--brand);border-color:var(--brand)}.step-badge--done{background:var(--ok-soft);color:var(--ok);border-color:var(--ok)}.url-form{display:flex;flex-direction:column;gap:.75rem}.url-field{position:relative;display:flex;align-items:stretch;border:1.5px solid var(--line);border-radius:var(--radius);background:var(--surface-2);transition:border-color .15s,box-shadow .15s;overflow:hidden}.url-field:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-ring)}.url-field__icon{display:grid;place-items:center;padding:0 .85rem;color:var(--muted);flex-shrink:0;pointer-events:none}.url-field__icon svg{width:1rem;height:1rem}.url-input{flex:1;min-height:3rem;padding:.75rem .75rem .75rem 0;border:none;background:transparent;color:var(--text);outline:none;font-size:.93rem}.url-input::placeholder{color:var(--muted)}.url-field__clear{display:grid;place-items:center;width:2.75rem;border:none;background:transparent;color:var(--muted);flex-shrink:0;opacity:0;transition:opacity .15s}.url-field__clear--visible{opacity:1}.url-field__clear:hover{color:var(--text)}.url-field__clear svg{width:.85rem;height:.85rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;min-height:2.75rem;padding:.65rem 1.25rem;border:1.5px solid transparent;border-radius:var(--radius);font-weight:600;font-size:.9rem;cursor:pointer;text-decoration:none;transition:opacity .15s,transform .12s;-webkit-user-select:none;user-select:none;white-space:nowrap}.btn:active:not(:disabled):not(.btn--disabled){transform:scale(.98)}.btn:disabled,.btn--disabled{cursor:not-allowed;opacity:.45;pointer-events:none}.btn--primary{color:#fff;background:var(--brand);border-color:var(--brand)}.btn--primary:hover:not(:disabled){background:var(--brand-hover);border-color:var(--brand-hover)}.btn--primary-lg{min-height:3.25rem;font-size:1rem;border-radius:var(--radius)}.btn--wide{width:100%}.btn--ok{color:#fff;background:var(--ok);border-color:var(--ok)}.btn--ghost{color:var(--text);background:var(--surface-2);border-color:var(--line)}.btn--ghost:hover:not(:disabled){background:var(--surface-3)}.btn--sm{min-height:2.25rem;padding:.4rem .85rem;font-size:.82rem}.btn__icon{width:1rem;height:1rem;flex-shrink:0}.btn-spinner{width:.9rem;height:.9rem;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .65s linear infinite;flex-shrink:0}.btn-spinner--dark{border-color:#00000026;border-top-color:var(--text)}.form-tips{display:flex;flex-wrap:wrap;gap:.35rem 1rem;font-size:.78rem;color:var(--muted);padding:0 .1rem}.form-tips__item{display:flex;align-items:center;gap:.3rem}.alert{display:flex;gap:.65rem;align-items:flex-start;padding:.75rem .9rem;border-radius:var(--radius-sm);font-size:.88rem;line-height:1.55;border:1px solid transparent}.alert--error{background:var(--err-soft);color:var(--err);border-color:color-mix(in srgb,var(--err) 20%,transparent)}.alert--warn{background:var(--warn-soft);color:var(--warn);border-color:color-mix(in srgb,var(--warn) 20%,transparent)}.alert__icon{font-size:1rem;flex-shrink:0;margin-top:.05rem}.video-panel{display:grid;grid-template-columns:152px 1fr;gap:.85rem;align-items:start}.video-panel__thumb-wrap{position:relative;border-radius:.6rem;overflow:hidden;background:var(--surface-3);aspect-ratio:16/9}.video-panel__thumb{width:100%;height:100%;object-fit:cover}.video-panel__thumb-placeholder{display:grid;place-items:center;width:100%;height:100%;color:var(--muted);font-size:1.5rem}.video-panel__body{display:flex;flex-direction:column;gap:.5rem;min-width:0}.video-panel__title{font-size:.97rem;font-weight:600;line-height:1.4;text-wrap:pretty;display:-webkit-box;-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.video-panel__tags{display:flex;flex-wrap:wrap;gap:.35rem}.tag{display:inline-flex;align-items:center;gap:.25rem;padding:.2rem .55rem;border-radius:999px;font-size:.74rem;font-weight:500;background:var(--surface-3);border:1px solid var(--line);color:var(--muted);font-variant-numeric:tabular-nums}.quality-section__label{font-size:.8rem;font-weight:600;color:var(--muted);text-transform:uppercase;margin-bottom:.6rem}.quality-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:.55rem;margin-bottom:1rem}.qcard{display:flex;flex-direction:column;gap:.15rem;padding:.8rem .9rem;border:1.5px solid var(--line);border-radius:var(--radius);background:var(--surface);text-align:left;cursor:pointer;transition:border-color .12s,background .12s;min-height:4.5rem;position:relative}.qcard:hover:not(:disabled){border-color:var(--line-2);background:var(--surface-2)}.qcard--active{border-color:var(--brand);background:var(--brand-soft)}.qcard--active:after{content:"✓";position:absolute;top:.45rem;right:.6rem;font-size:.7rem;font-weight:700;color:var(--brand)}.qcard--disabled{opacity:.4;cursor:not-allowed}.qcard__res{font-size:1.15rem;font-weight:800;color:var(--text);line-height:1;font-variant-numeric:tabular-nums}.qcard__mode{font-size:.68rem;font-weight:600;text-transform:uppercase;color:var(--brand);margin-top:.15rem}.qcard__meta{font-size:.75rem;color:var(--muted);margin-top:.1rem;font-variant-numeric:tabular-nums}.qcard__warn{font-size:.72rem;color:var(--err);margin-top:.15rem}.badge{display:inline-flex;align-items:center;gap:.25rem;padding:.25rem .6rem;border-radius:999px;font-size:.74rem;font-weight:600;white-space:nowrap}.badge--idle{background:var(--surface-3);color:var(--muted)}.badge--busy{background:var(--busy-soft);color:var(--busy)}.badge--ok{background:var(--ok-soft);color:var(--ok)}.badge--err{background:var(--err-soft);color:var(--err)}.badge--warn{background:var(--warn-soft);color:var(--warn)}.badge__dot{width:.42rem;height:.42rem;border-radius:50%;background:currentColor}.progress-block{display:flex;flex-direction:column;gap:.4rem}.progress-row{display:flex;align-items:center;gap:.65rem}.progress-track{flex:1;height:7px;border-radius:999px;background:var(--surface-3);border:1px solid var(--line);overflow:hidden}.progress-fill{height:100%;border-radius:inherit;background:var(--busy);transition:width .4s ease-out}.progress-fill--done{background:var(--ok)}.progress-pct{font-size:.82rem;font-weight:700;min-width:2.6rem;text-align:right;font-variant-numeric:tabular-nums;color:var(--text-2)}.progress-desc{font-size:.85rem;color:var(--muted);text-wrap:pretty}.pipeline{display:flex;flex-direction:column;gap:0}.pipeline-step{display:flex;align-items:flex-start;gap:.75rem;padding:.6rem 0;position:relative}.pipeline-step:not(:last-child):after{content:"";position:absolute;left:.73rem;top:2.15rem;bottom:0;width:1.5px;background:var(--line)}.pipeline-step--done:not(:last-child):after{background:var(--ok)}.pipeline-step__icon{display:grid;place-items:center;width:1.5rem;height:1.5rem;border-radius:50%;border:1.5px solid var(--line);background:var(--surface);font-size:.65rem;flex-shrink:0;position:relative;z-index:1;font-variant-numeric:tabular-nums;color:var(--muted)}.pipeline-step--done .pipeline-step__icon{background:var(--ok-soft);border-color:var(--ok);color:var(--ok)}.pipeline-step--active .pipeline-step__icon{background:var(--busy-soft);border-color:var(--busy);color:var(--busy)}.pipeline-step--error .pipeline-step__icon{background:var(--err-soft);border-color:var(--err);color:var(--err)}.pipeline-step__text{padding-top:.1rem}.pipeline-step__label{font-size:.88rem;font-weight:600;line-height:1.3}.pipeline-step__desc{font-size:.8rem;color:var(--muted);margin-top:.1rem}.dl-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:.5rem;margin-bottom:1rem}.dl-stat{padding:.65rem .8rem;border-radius:var(--radius-sm);background:var(--surface-2);border:1px solid var(--line)}.dl-stat__label{font-size:.68rem;font-weight:600;text-transform:uppercase;color:var(--muted);margin-bottom:.2rem}.dl-stat__value{font-size:.95rem;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums}.dl-stat--span{grid-column:1 / -1}.dl-actions{display:flex;gap:.5rem}.dl-actions .btn--ok{flex:1}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:.6rem}.feature-card{padding:1rem;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);display:flex;flex-direction:column;gap:.4rem}.feature-card__icon{font-size:1.3rem;line-height:1}.feature-card__title{font-size:.85rem;font-weight:700}.feature-card__desc{font-size:.78rem;color:var(--muted);line-height:1.5}.faq{display:flex;flex-direction:column;gap:0}.faq__item{border-bottom:1px solid var(--line);padding:.9rem 0}.faq__item:first-child{padding-top:0}.faq__item:last-child{border-bottom:none;padding-bottom:0}.faq__q{font-size:.9rem;font-weight:600;margin-bottom:.3rem}.faq__a{font-size:.83rem;color:var(--muted);line-height:1.6;text-wrap:pretty}.site-footer{border-top:1px solid var(--line);padding:1.5rem 1.25rem;padding-bottom:calc(1.5rem + env(safe-area-inset-bottom,0px));text-align:center;color:var(--muted);font-size:.78rem;line-height:1.7}.site-footer a{color:var(--brand)}.site-footer__links{display:flex;gap:1.25rem;justify-content:center;margin-top:.4rem}.section-heading{font-size:1.1rem;font-weight:800;text-wrap:balance}.divider{height:1px;background:var(--line);margin:.25rem 0}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(.85)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}@media(max-width:680px){.page-content{padding:1rem .85rem 3.5rem}.hero{padding:1.25rem .5rem .25rem}.hero__title{font-size:1.45rem}.hero__sub{font-size:.88rem}}@media(max-width:520px){.site-header__inner{padding:.7rem 1rem}.header-meta{display:none}.video-panel{grid-template-columns:110px 1fr;gap:.7rem}.quality-grid{grid-template-columns:repeat(2,1fr)}.features{grid-template-columns:1fr}.dl-stats{grid-template-columns:repeat(2,1fr)}.dl-actions{flex-direction:column}.dl-actions .btn{width:100%}}@media(max-width:380px){body{font-size:14px}.brand__tagline{display:none}.video-panel{grid-template-columns:1fr}.video-panel__thumb-wrap{max-width:100%}}@media(pointer:coarse){.btn{min-height:2.9rem}.qcard{min-height:5rem}}