:root{--bg:#0b0e14;--bg-elevated:#10141d;--surface:rgba(255, 255, 255, 0.055);--surface-strong:rgba(255, 255, 255, 0.09);--border:rgba(255, 255, 255, 0.10);--border-strong:rgba(255, 255, 255, 0.18);--text:#eef0f5;--text-muted:#9aa3b2;--text-faint:#6b7383;--iris:#7c5cff;--iris-soft:#a892ff;--coral:#ff6b5b;--coral-soft:#ff9587;--lime:#b4ff6b;--danger:#ff5c5c;--gradient-brand:linear-gradient(120deg, var(--iris) 0%, var(--coral) 100%);--gradient-brand-soft:linear-gradient(120deg, rgba(124,92,255,0.18), rgba(255,107,91,0.18));--font-display:'Space Grotesk','Segoe UI',sans-serif;--font-body:'Inter','Segoe UI',sans-serif;--font-mono:'JetBrains Mono','SFMono-Regular',Menlo,monospace;--radius-sm:10px;--radius-md:16px;--radius-lg:24px;--shadow-soft:0 20px 60px -20px rgba(0, 0, 0, 0.55);--shadow-glow:0 0 0 1px rgba(124,92,255,0.25),0 20px 50px -15px rgba(124,92,255,0.35);--container:1120px;--speed-fast:150ms;--speed-med:320ms;--ease:cubic-bezier(0.22, 1, 0.36, 1)}[data-theme=light]{--bg:#f5f7fb;--bg-elevated:#ffffff;--surface:rgba(16, 20, 30, 0.045);--surface-strong:rgba(16, 20, 30, 0.07);--border:rgba(16, 20, 30, 0.09);--border-strong:rgba(16, 20, 30, 0.16);--text:#12141c;--text-muted:#565f70;--text-faint:#8891a0;--shadow-soft:0 20px 60px -25px rgba(20, 24, 40, 0.25);--shadow-glow:0 0 0 1px rgba(124,92,255,0.18),0 20px 50px -18px rgba(124,92,255,0.28)}*,::after,::before{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-body);line-height:1.6;-webkit-font-smoothing:antialiased;transition:background var(--speed-med) var(--ease),color var(--speed-med) var(--ease)}img{max-width:100%;display:block}a{color:inherit}button{font-family:inherit}h1,h2,h3,h4{font-family:var(--font-display);line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em}p{margin:0 0 1em;color:var(--text-muted)}.container{max-width:var(--container);margin:0 auto;padding:0 20px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}:focus-visible{outline:2px solid var(--iris-soft);outline-offset:3px;border-radius:6px}@media (prefers-reduced-motion:reduce){*,::after,::before{animation-duration:0s!important;animation-iteration-count:1!important;transition-duration:0s!important;scroll-behavior:auto!important}}.site-header{position:sticky;top:0;z-index:40;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);background:color-mix(in srgb,var(--bg) 72%,transparent);border-bottom:1px solid var(--border)}.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:600;font-size:1.05rem;text-decoration:none;color:var(--text)}.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--gradient-brand);display:grid;place-items:center;box-shadow:var(--shadow-glow)}.brand-mark svg{width:18px;height:18px}.nav-links{display:flex;align-items:center;gap:26px}.nav-links a{text-decoration:none;color:var(--text-muted);font-size:.94rem;font-weight:500;transition:color var(--speed-fast) var(--ease)}.nav-links a:hover{color:var(--text)}.nav-actions{display:flex;align-items:center;gap:12px}.nav-toggle{display:none}.theme-toggle{width:42px;height:42px;border-radius:50%;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;display:grid;place-items:center;transition:transform var(--speed-fast) var(--ease),background var(--speed-fast) var(--ease)}.theme-toggle:hover{transform:translateY(-1px);background:var(--surface-strong)}.theme-toggle svg{width:18px;height:18px}.theme-toggle .sun{display:none}[data-theme=light] .theme-toggle .moon{display:none}[data-theme=light] .theme-toggle .sun{display:block}.hero{position:relative;padding:64px 0 40px;overflow:hidden}.hero::before{content:'';position:absolute;inset:-20% -10% auto -10%;height:480px;background:radial-gradient(60% 60% at 30% 20%,rgba(124,92,255,.28),transparent 70%),radial-gradient(50% 50% at 80% 10%,rgba(255,107,91,.22),transparent 70%);filter:blur(10px);pointer-events:none;z-index:0}.hero-inner{position:relative;z-index:1;text-align:center;max-width:760px;margin:0 auto}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--iris-soft);background:var(--gradient-brand-soft);border:1px solid var(--border-strong);padding:6px 14px;border-radius:999px;margin-bottom:18px}.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 8px var(--lime)}.hero h1{font-size:clamp(2.1rem, 5vw, 3.4rem);font-weight:700;color:var(--text)}.hero h1 span{background:var(--gradient-brand);-webkit-background-clip:text;background-clip:text;color:transparent}.hero-sub{font-size:1.08rem;max-width:560px;margin:0 auto 8px}.trust-row{display:flex;justify-content:center;gap:22px;flex-wrap:wrap;margin-top:22px;font-size:.85rem;color:var(--text-faint)}.trust-row span{display:flex;align-items:center;gap:6px}.trust-row svg{width:15px;height:15px;color:var(--lime)}.filmstrip{position:relative;margin:44px auto 0;max-width:640px;padding:14px 22px;border-radius:var(--radius-lg);background:repeating-linear-gradient(90deg,var(--bg-elevated) 0 14px,transparent 14px 16px) top/100% 14px no-repeat,repeating-linear-gradient(90deg,var(--bg-elevated) 0 14px,transparent 14px 16px) bottom/100% 14px no-repeat;background-color:transparent}.filmstrip::after,.filmstrip::before{content:'';position:absolute;left:0;right:0;height:14px;background-image:radial-gradient(circle,var(--bg) 3.5px,transparent 3.6px);background-size:22px 14px;background-repeat:repeat-x;background-position:center}.filmstrip::before{top:0}.filmstrip::after{bottom:0}.downloader-card{position:relative;border-radius:var(--radius-lg);padding:30px 26px 26px;background:var(--surface);border:1px solid var(--border);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:var(--shadow-soft)}.downloader-form{display:flex;flex-direction:column;gap:14px}.input-row{display:flex;gap:10px;flex-wrap:wrap}.url-field{position:relative;flex:1 1 260px;display:flex;align-items:center}.url-field svg.icon{position:absolute;left:14px;width:18px;height:18px;color:var(--text-faint);pointer-events:none}#reel-url{width:100%;padding:15px 44px 15px 42px;border-radius:var(--radius-md);border:1px solid var(--border-strong);background:var(--bg-elevated);color:var(--text);font-family:var(--font-mono);font-size:.92rem;transition:border-color var(--speed-fast) var(--ease),box-shadow var(--speed-fast) var(--ease)}#reel-url::placeholder{color:var(--text-faint)}#reel-url:focus{border-color:var(--iris);box-shadow:0 0 0 4px rgba(124,92,255,.15);outline:0}.paste-btn{position:absolute;right:6px;border:none;background:var(--surface-strong);color:var(--text-muted);padding:8px 12px;border-radius:8px;cursor:pointer;font-size:.78rem;font-weight:600;transition:background var(--speed-fast) var(--ease),color var(--speed-fast) var(--ease)}.paste-btn:hover{background:var(--border-strong);color:var(--text)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--radius-md);padding:15px 22px;font-weight:600;font-size:.96rem;cursor:pointer;transition:transform var(--speed-fast) var(--ease),box-shadow var(--speed-fast) var(--ease),opacity var(--speed-fast) var(--ease);white-space:nowrap}.btn:active{transform:scale(.98)}.btn-primary{background:var(--gradient-brand);color:#fff;box-shadow:0 12px 30px -10px rgba(124,92,255,.55)}.btn-primary:hover{box-shadow:0 16px 36px -8px rgba(124,92,255,.65);transform:translateY(-1px)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-ghost{background:var(--surface);color:var(--text);border:1px solid var(--border-strong)}.btn-ghost:hover{background:var(--surface-strong)}.btn-block{width:100%}.form-hint{font-size:.82rem;color:var(--text-faint);margin:0}.form-hint a{color:var(--iris-soft);text-decoration:underline;text-underline-offset:3px}.status-area{min-height:0}.status-area:empty{display:none}.loader{display:flex;align-items:center;gap:14px;padding:16px 18px;border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--border);margin-top:16px;animation:fade-in var(--speed-med) var(--ease)}.reel-spinner{width:30px;height:30px;border-radius:50%;flex-shrink:0;border:3px solid var(--border-strong);border-top-color:var(--iris);border-right-color:var(--coral);animation:spin .85s linear infinite}.loader-text{font-size:.92rem;color:var(--text-muted)}.loader-text strong{color:var(--text)}.alert{display:flex;align-items:flex-start;gap:12px;padding:16px 18px;border-radius:var(--radius-md);margin-top:16px;font-size:.9rem;animation:fade-in var(--speed-med) var(--ease)}.alert svg{width:20px;height:20px;flex-shrink:0;margin-top:1px}.alert-error{background:rgba(255,92,92,.1);border:1px solid rgba(255,92,92,.35);color:#ff8f85}[data-theme=light] .alert-error{color:#c92f2f}.result-card{margin-top:18px;padding:18px;border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--border-strong);display:flex;gap:16px;align-items:center;flex-wrap:wrap;animation:fade-in var(--speed-med) var(--ease)}.result-thumb{width:74px;height:74px;border-radius:12px;object-fit:cover;background:var(--gradient-brand-soft);flex-shrink:0}.result-meta{flex:1 1 160px;min-width:0}.result-meta strong{display:block;font-size:.95rem;margin-bottom:2px}.result-meta span{font-size:.82rem;color:var(--text-faint)}.result-actions{display:flex;gap:10px;flex-wrap:wrap}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fade-in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.section{padding:72px 0}.section-head{text-align:center;max-width:620px;margin:0 auto 44px}.section-head .eyebrow{margin-bottom:14px}.section-head h2{font-size:clamp(1.6rem, 3.4vw, 2.2rem)}.feature-grid,.steps-grid,.tools-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.feature-card,.step-card,.tool-card{padding:26px 22px;border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--border);transition:transform var(--speed-med) 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32px;text-align:center;background:var(--gradient-brand);color:#fff;position:relative;overflow:hidden}.cta-band h2{color:#fff;font-size:clamp(1.5rem, 3vw, 2rem)}.cta-band p{color:rgba(255,255,255,.88);max-width:480px;margin:0 auto 22px}.cta-band .btn-ghost{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.35);color:#fff}.cta-band .btn-ghost:hover{background:rgba(255,255,255,.26)}.article-wrap{max-width:760px;margin:0 auto}.breadcrumb{font-size:.82rem;color:var(--text-faint);margin-bottom:20px}.breadcrumb a{color:var(--text-faint);text-decoration:none}.breadcrumb a:hover{color:var(--iris-soft)}.breadcrumb span[aria-hidden]{margin:0 6px}.article-wrap h1{font-size:clamp(1.8rem, 4vw, 2.5rem)}.article-meta{font-size:.85rem;color:var(--text-faint);margin-bottom:32px}.article-wrap h2{margin-top:2em;font-size:1.4rem}.article-wrap h3{margin-top:1.4em;font-size:1.1rem}.article-wrap ol,.article-wrap ul{color:var(--text-muted);padding-left:1.2em}.article-wrap li{margin-bottom:.5em}.article-wrap a.inline-link{color:var(--iris-soft);text-decoration:underline;text-underline-offset:3px}.toc{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px 22px;margin:24px 0}.toc p{font-weight:600;color:var(--text);margin-bottom:10px}.toc ol{margin:0}.toc a{color:var(--text-muted);text-decoration:none;font-size:.92rem}.toc a:hover{color:var(--iris-soft)}.site-footer{border-top:1px solid var(--border);padding:48px 0 30px;margin-top:40px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:30px;margin-bottom:36px}.footer-col h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-faint);margin-bottom:14px}.footer-col a{display:block;font-size:.9rem;color:var(--text-muted);text-decoration:none;margin-bottom:10px}.footer-col a:hover{color:var(--text)}.footer-brand p{font-size:.88rem;max-width:280px}.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding-top:22px;border-top:1px solid var(--border);font-size:.82rem;color:var(--text-faint)}.footer-bottom a{color:var(--text-faint);text-decoration:underline;text-underline-offset:3px}@media (max-width:860px){.footer-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:720px){.nav-links{display:none}.section{padding:52px 0}.filmstrip{padding:14px 14px}.downloader-card{padding:22px 16px}.footer-grid{grid-template-columns:1fr;gap:24px}}