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input::placeholder{color:var(--color-muted);font-weight:500}.hub-filter-bar{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.hub-filter-chip{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--radius-pill);border:1px solid var(--color-hairline);background:var(--color-surface);color:var(--color-text-2);font-family:var(--font-heading);font-size:13.5px;font-weight:600;cursor:pointer;transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease)}.hub-filter-chip:hover{border-color:#1a19182e;color:var(--color-text)}.hub-filter-chip.active{background:var(--color-text);color:#fff;border-color:var(--color-text)}.hub-chip-dot{display:inline-block;width:8px;height:8px;border-radius:999px}.hub-filter-count{display:inline-block;min-width:20px;text-align:center;padding:1px 7px;border-radius:999px;background:var(--color-surface-2);color:var(--color-muted);font-family:var(--font-mono);font-size:10.5px;font-weight:600;letter-spacing:.04em}.hub-filter-chip.active .hub-filter-count{background:#ffffff24;color:#ffffffd9}.hub-group{display:flex;flex-direction:column;gap:16px;margin-top:8px}.hub-grid{display:grid;grid-template-columns:1fr;gap:12px}@media (min-width: 640px){.hub-grid{grid-template-columns:1fr 1fr}}@media (min-width: 1000px){.hub-grid{grid-template-columns:1fr 1fr 1fr}}.hub-card{display:flex;flex-direction:column;gap:8px;padding:18px 20px 20px;border:1px solid var(--color-hairline);border-radius:var(--radius);background:var(--color-surface);text-decoration:none;color:var(--color-text);box-shadow:var(--shadow-xs);transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);position:relative;overflow:hidden}.hub-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--color-muted);transform:scaleY(0);transform-origin:0 0;transition:transform var(--dur) var(--ease)}.hub-card:hover{transform:translateY(-2px);border-color:#1a191824;box-shadow:var(--shadow-sm)}.hub-card:hover:before{transform:scaleY(1)}.hub-card[data-filter=remux]:before{background:#13b058}.hub-card[data-filter=reencode]:before{background:var(--color-accent)}.hub-card[data-filter=extract]:before{background:#3859d0}.hub-card-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.hub-card-from,.hub-card-to{font-family:var(--font-heading);font-weight:900;font-size:20px;letter-spacing:-.02em;color:var(--color-text)}.hub-card-arrow{color:var(--color-accent);font-weight:800;font-size:18px}.hub-card-note{font-size:13.5px;color:var(--color-text-2);line-height:1.5;margin:0}.hub-badge{margin-left:auto;padding:4px 10px;border-radius:var(--radius-pill);font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;font-weight:700;border:1px solid transparent;white-space:nowrap}.hub-badge.mech-fast{background:#13b0581a;color:#0f7a3a;border-color:#13b0583d}.hub-badge.mech-cond{background:#cb8a041a;color:#8a5a04;border-color:#cb8a0438}.hub-badge.mech-encode{background:var(--color-accent-soft);color:var(--color-accent-pressed);border-color:#ec301333}.hub-badge.mech-extract{background:#3859d01a;color:#2a4bb0;border-color:#3859d038}.hub-faq-section{gap:16px}.hub-empty{padding:32px 20px;text-align:center;color:var(--color-muted);border:1px dashed var(--color-hairline);border-radius:var(--radius);display:flex;flex-direction:column;gap:12px;align-items:center}.hub-cta{max-width:1000px;margin:0 auto clamp(56px,8vw,96px);padding:28px 32px;border-radius:var(--radius-lg);background:linear-gradient(135deg,var(--color-text) 0%,#2d2b29 100%);color:#fff;display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap;width:calc(100% - clamp(40px,10vw,80px))}.hub-cta-copy{display:flex;flex-direction:column;gap:4px}.hub-cta-eyebrow{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--color-accent);font-weight:600}.hub-cta-title{font-family:var(--font-heading);font-weight:800;font-size:20px;line-height:1.3;letter-spacing:-.015em}.hub-cta-btn{white-space:nowrap}