:root{--canvas: #0e0e0f;--canvas-soft: #141416;--canvas-raised: #1a1a1d;--canvas-card: #1c1c1f;--hairline: rgba(255,255,255,.07);--hairline-strong: rgba(255,255,255,.15);--ink: #f0f0f0;--body: #a0a0a8;--mute: #5c5c66;--on-primary: #fff;--accent: #c0392b;--accent-hover: #96281b;--accent-glow: rgba(192,57,43,.22);--sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{font-family:var(--sans);background:var(--canvas);color:var(--ink);min-height:100vh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}header{position:sticky;top:0;z-index:50;height:60px;border-bottom:1px solid var(--hairline);background:#0e0e0fd9;backdrop-filter:saturate(160%) blur(16px)}.nav{max-width:1100px;margin:0 auto;height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 24px;gap:16px}.logo{display:flex;align-items:center;gap:10px;font-size:1rem;font-weight:600;letter-spacing:-.02em;color:var(--ink)}.logo-mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,#c0392b,#8e2018);display:flex;align-items:center;justify-content:center;font-size:14px;color:#fff;flex-shrink:0}.nav-links{display:none;gap:2px}.nav-links a{font-size:13px;font-weight:400;color:var(--body);padding:6px 12px;border-radius:8px;transition:color .15s,background .15s}.nav-links a:hover{color:var(--ink);background:var(--canvas-raised)}@media(min-width:760px){.nav-links{display:flex}}main{flex:1;width:100%;max-width:780px;margin:0 auto;padding:0 20px 100px;position:relative;z-index:1}.bg-glow{position:fixed;bottom:0;left:0;right:0;height:55vh;pointer-events:none;z-index:0;background:radial-gradient(ellipse 90% 80% at 15% 110%,rgba(160,30,20,.55),transparent 55%),radial-gradient(ellipse 70% 90% at 50% 120%,rgba(220,80,60,.28),transparent 50%),radial-gradient(ellipse 80% 70% at 85% 110%,rgba(100,15,15,.5),transparent 55%);filter:blur(55px)}.hero{position:relative;text-align:center;padding:52px 0 44px}.hero>*{position:relative;z-index:1}.badge{display:inline-flex;align-items:center;gap:6px;margin-bottom:28px;font-size:11px;color:var(--mute);border:1px solid var(--hairline);background:var(--canvas-raised);padding:5px 14px;border-radius:9999px;letter-spacing:.04em;text-transform:uppercase}.badge-dot{width:5px;height:5px;border-radius:50%;background:var(--accent)}h1{font-size:38px;line-height:1.08;font-weight:600;letter-spacing:-2px;color:var(--ink)}@media(min-width:640px){h1{font-size:56px;letter-spacing:-2.8px}}.grad{background:linear-gradient(135deg,#e85d4a,#c0392b 40%,#8b1a1a);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.subtitle{margin:18px auto 0;max-width:480px;font-size:15px;line-height:26px;color:var(--body);font-weight:300}.platforms-section{margin-top:44px;position:relative;z-index:1}.section-label{font-size:11px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--mute);margin-bottom:16px;text-align:center}.platform-grid-main{display:grid;gap:10px;grid-template-columns:repeat(2,1fr)}@media(min-width:560px){.platform-grid-main{grid-template-columns:repeat(3,1fr)}}.platform-card-main{position:relative;overflow:hidden;background:#1c1c1fbf;border:1px solid var(--hairline);border-radius:var(--radius-lg);padding:20px 16px;display:flex;flex-direction:column;gap:8px;transition:border-color .2s,transform .2s;cursor:pointer;backdrop-filter:blur(4px)}.platform-card-main:hover{border-color:var(--hairline-strong);transform:translateY(-2px)}.platform-card-main:before{content:"";position:absolute;bottom:0;left:0;right:0;height:50%;background:radial-gradient(ellipse at 50% 130%,var(--card-glow, rgba(192,57,43,.12)),transparent 70%);pointer-events:none}.card-icon{font-size:20px;line-height:1}.card-name{font-size:14px;font-weight:500;letter-spacing:-.2px;color:var(--ink)}.card-desc{font-size:11px;color:var(--mute);line-height:1.4}.card-arrow{margin-top:4px;font-size:11px;color:var(--mute);display:flex;align-items:center;gap:4px}.card-arrow svg{transition:transform .2s}.platform-card-main:hover .card-arrow svg{transform:translate(3px)}.tabs-container{display:flex;flex-wrap:wrap;gap:8px;margin:32px 0 24px;justify-content:center}.tab-btn{font-family:var(--sans);font-size:13px;font-weight:500;letter-spacing:-.2px;background:var(--canvas-card);border:1px solid var(--hairline);color:var(--body);padding:7px 16px;border-radius:9999px;cursor:pointer;outline:none;display:flex;align-items:center;gap:6px;transition:border-color .15s,color .15s,background .15s}.tab-btn:hover{color:var(--ink);border-color:var(--hairline-strong);background:var(--canvas-raised)}.tab-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}.container{background:var(--canvas-card);border:1px solid var(--hairline);border-radius:var(--radius-lg);padding:32px;width:100%;text-align:center;box-shadow:0 0 0 1px #ffffff08 inset}.card-title{font-size:22px;font-weight:600;letter-spacing:-.8px;margin-bottom:4px}.accent-text{color:var(--accent)}.card-sub{color:var(--mute);margin-bottom:24px;font-size:13px}.input-group{display:flex;flex-direction:column;gap:10px}.input-row{display:flex;flex-direction:column;gap:8px}.input-actions{display:flex;gap:8px}input{width:100%;height:48px;padding:0 16px;border-radius:var(--radius-sm);background:var(--canvas-raised);border:1px solid var(--hairline);color:var(--ink);font-size:15px;font-family:var(--sans);outline:none;transition:border-color .15s,box-shadow 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var(--hairline);color:var(--ink);padding:12px;border-radius:var(--radius-sm);font-size:13px;font-weight:500;font-family:var(--sans);cursor:pointer;text-align:center;transition:border-color .15s,background .15s}.quality-btn:hover{border-color:var(--accent);background:var(--canvas-raised)}#errorBox{display:none;color:#ff8080;background:#c0392b1f;border:1px solid rgba(192,57,43,.3);padding:11px 14px;border-radius:var(--radius-sm);margin-bottom:16px;font-size:13px;font-weight:500;text-align:left}#downloadingText{display:none;color:var(--mute);margin-top:14px;font-size:13px;text-align:center}.content{margin-top:72px;display:flex;flex-direction:column;gap:52px}.content 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var(--hairline);padding-top:24px}