:root{--text:#111827;--muted:#5b6472;--line:#e8ebf0;--soft:#f7f8fb;--accent:#d93a31;--green:#51bd67;--shadow:0 16px 38px #11182717;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif}*{box-sizing:border-box}html,body{max-width:100vw;overflow-x:hidden}html{scroll-behavior:smooth}body{color:var(--text);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#fff;margin:0;padding-bottom:132px}a{color:inherit;text-decoration:none}button,input{font:inherit}.nav{border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:10;background:#ffffffeb;justify-content:center;align-items:center;height:72px;display:flex;position:sticky;top:0}.navInner{align-items:center;gap:28px;width:min(1160px,100% - 32px);display:flex}.logo{letter-spacing:0;font-size:24px;font-weight:850}.logo span{color:var(--accent)}.navLink{color:#6b7280;font-size:16px;font-weight:700}.navSpacer{flex:1}.feedback{color:#fff;cursor:pointer;background:#111;border:0;border-radius:22px;align-items:center;gap:8px;padding:11px 18px;font-weight:800;display:inline-flex;box-shadow:0 12px 24px #d93a312e}main{width:min(1160px,100% - 32px);margin:0 auto}.hero{text-align:center;padding:72px 0 44px}h1{letter-spacing:0;margin:0;font-size:clamp(38px,6vw,64px);font-weight:900;line-height:1.12}.subtitle{color:#485365;max-width:860px;margin:26px auto 44px;font-size:22px;line-height:1.7}.parseBox{border:1px solid var(--line);width:min(760px,100%);box-shadow:var(--shadow);background:#fff;border-radius:14px;grid-template-columns:1fr 104px 150px;margin:0 auto;display:grid;overflow:hidden}.parseBox input{border:0;outline:none;min-width:0;height:64px;padding:0 26px;font-size:18px}.parseBox button{border:0;border-left:1px solid var(--line);cursor:pointer;background:#fff;font-size:18px;font-weight:850}.parseBox .primary{color:#fff;background:#050505}.parseBox .primary:disabled{cursor:wait;opacity:.75}.hint{color:#7b8494;margin-top:16px;font-size:14px}.features{grid-template-columns:repeat(4,1fr);gap:24px;margin:58px 0 54px;display:grid}.feature{text-align:center;background:linear-gradient(135deg,#fff 0%,#fff4f4 100%);border-radius:8px;place-items:center;min-height:124px;padding:24px;display:grid}.feature b{margin-bottom:12px;font-size:24px;display:block}.feature span{color:#4b5563;font-weight:800}.adSlot{color:#64748b;text-align:center;background:#f8fafc;border:1px dashed #cbd5e1;border-radius:8px;place-items:center;min-height:96px;margin:36px 0;padding:20px;display:grid}.adSlot strong{color:#334155;margin-bottom:6px;display:block}.adSlot span{display:block}.result{text-align:left;width:min(820px,100%);margin:34px auto 64px}.result h2{text-align:center;margin:0 0 22px;font-size:24px;line-height:1.45}.emptyResult{color:#9a3412;text-align:center;background:#fff7ed;border:1px solid #fed7aa;border-radius:8px;gap:8px;margin-bottom:18px;padding:20px;display:grid}.emptyResult strong{font-size:18px}.emptyResult span{color:#7c2d12;line-height:1.7}.previewGrid{grid-template-columns:1fr 1fr;gap:18px;display:grid}.previewCard{color:#fff;background:#000;border-radius:8px;place-items:center;min-height:220px;display:grid;position:relative;overflow:hidden}.previewCard img{object-fit:cover;opacity:.86;width:100%;height:100%;display:block}.previewCard video{object-fit:contain;background:#000;width:100%;height:100%;min-height:220px}.playBadge{background:#00000052;border:2px solid #ffffffbf;border-radius:50%;place-items:center;width:58px;height:58px;font-size:28px;display:grid;position:absolute}.actions{grid-template-columns:1fr 1fr;gap:14px 18px;margin:18px 0 30px;display:grid}.blackBtn,.copyBtn,.qualityBtn{cursor:pointer;border:0;border-radius:8px;height:52px;font-size:18px;font-weight:850}.blackBtn{color:#fff;background:#000}.qualityList{max-width:560px;margin:12px auto 0}.qualityTitle{color:#475569;margin-bottom:14px;font-weight:800}.qualityRow{grid-template-columns:1fr 76px;gap:18px;margin-bottom:12px;display:grid}.qualityBtn{background:var(--accent);color:#fff;text-align:left;padding:0 18px}.copyBtn{background:var(--green);color:#fff}.contentBand{border-top:1px solid var(--line);padding:42px 0}.sectionTitle{margin:0 0 20px;font-size:30px;font-weight:900}.steps,.faq{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}.panel{border:1px solid var(--line);background:#fff;border-radius:8px;padding:22px}.panel h3{margin:0 0 10px;font-size:19px}.panel p{color:var(--muted);margin:0;line-height:1.75}.legal{color:#6b7280;margin-top:22px;font-size:14px;line-height:1.8}.footer{border-top:1px solid var(--line);color:#6b7280;text-align:center;padding:30px 0;font-size:14px}.infoMain{width:min(920px,100% - 32px)}.infoHero{padding:68px 0 34px}.infoHero h1{font-size:clamp(38px,6vw,58px)}.infoHero p{color:#485365;max-width:760px;font-size:20px;line-height:1.7}.eyebrow{color:var(--accent);margin-bottom:12px;font-weight:900}.infoContent{gap:18px;margin-bottom:64px;display:grid}.infoPanel{border:1px solid var(--line);background:#fff;border-radius:8px;padding:26px}.infoPanel h2{margin:0 0 12px;font-size:22px}.infoPanel p{color:var(--muted);margin:0;line-height:1.8}.adminMain{width:min(1120px,100% - 32px);padding:42px 0 80px}.adminHeader{justify-content:space-between;align-items:flex-start;gap:24px;margin-bottom:28px;display:flex}.adminHeader h1{font-size:42px}.adminHeader p{color:var(--muted);margin:12px 0 0}.adminHome,.adminAuth button{color:#fff;cursor:pointer;background:#111;border:0;border-radius:8px;padding:13px 18px;font-weight:850}.adminAuth{grid-template-columns:1fr 128px;gap:12px;margin-bottom:22px;display:grid}.adminAuth input{border:1px solid var(--line);border-radius:8px;outline:none;height:48px;padding:0 16px}.adminError{color:#b91c1c;background:#fef2f2;border:1px solid #fecaca;border-radius:8px;margin-bottom:22px;padding:14px 16px}.metricGrid{grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:18px;display:grid}.metric,.adminPanel{border:1px solid var(--line);background:#fff;border-radius:8px;padding:20px}.metric span{color:var(--muted);margin-bottom:8px;display:block}.metric strong{font-size:34px}.adminGrid{grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px;display:grid}.adminPanel h2{margin:0 0 16px;font-size:22px}.statLine{border-top:1px solid var(--line);justify-content:space-between;align-items:center;padding:12px 0;display:flex}.statLine:first-of-type{border-top:0}.adminTable{gap:0;display:grid}.adminRow{border-top:1px solid var(--line);color:#475569;grid-template-columns:2fr 1fr 1fr 1fr;gap:12px;padding:12px 0;display:grid}.adminRowHead{color:#111827;border-top:0;font-weight:900}.adminEmpty{color:var(--muted);padding:12px 0}.batchMain{width:min(980px,100% - 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