*{box-sizing:border-box;margin:0;padding:0}.v2-marker{display:none;opacity:.66}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#f0f2f8;color:#333}.navbar{display:flex;align-items:center;justify-content:space-between;padding:0 40px;height:64px;background:#fff;box-shadow:0 1px 8px #00000014;position:sticky;top:0;z-index:100;flex-wrap:wrap;gap:10px}.nav-logo{font-size:20px;font-weight:700;color:#667eea}.nav-links{display:flex;gap:24px}.nav-links a{text-decoration:none;color:#666;font-size:14px}.nav-links a:hover{color:#667eea}.nav-actions{display:flex;align-items:center;gap:12px}.nav-avatar{width:32px;height:32px;border-radius:50%;border:2px solid #667eea}.nav-username{font-size:14px;font-weight:500}.credits-badge{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:3px 12px;border-radius:20px;font-size:13px;font-weight:600}.credits-badge-warn{background:linear-gradient(135deg,#f97316,#ef4444)!important;animation:pulse-badge 2s infinite}@keyframes pulse-badge{0%,to{opacity:1}50%{opacity:.75}}.btn-recharge-sm{background:#f97316;color:#fff;border:none;padding:5px 14px;border-radius:6px;cursor:pointer;font-size:13px;font-weight:600}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:9px 22px;border-radius:8px;cursor:pointer;font-weight:600;font-size:14px}.btn-ghost{background:transparent;color:#667eea;border:1.5px solid #667eea;padding:7px 18px;border-radius:8px;cursor:pointer;font-size:14px}.hero{text-align:center;padding:80px 40px 60px;background:linear-gradient(135deg,#f5f7ff,#e8ecff)}.hero h1{font-size:48px;font-weight:800;line-height:1.2;margin-bottom:20px}.gradient-text{background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-sub{font-size:18px;color:#666;margin-bottom:36px}.hero-actions{display:flex;justify-content:center;gap:16px;align-items:center;margin-bottom:50px}.btn-hero{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:15px 36px;border-radius:12px;font-size:17px;font-weight:700;cursor:pointer;box-shadow:0 8px 24px #667eea66;transition:transform .2s}.btn-hero:hover{transform:translateY(-2px)}.btn-link{color:#667eea;text-decoration:none;font-size:15px}.demo-comparison{display:flex;align-items:center;justify-content:center;gap:24px;margin-top:10px}.demo-box{text-align:center}.demo-label{font-size:12px;color:#999;margin-bottom:8px}.demo-placeholder{width:160px;height:120px;border-radius:12px;font-size:64px;display:flex;align-items:center;justify-content:center}.before{background:#e8e0d8}.after{background:linear-gradient(45deg,#ddd 25%,transparent 25%),linear-gradient(-45deg,#ddd 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#ddd 75%),linear-gradient(-45deg,transparent 75%,#ddd 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0;background-color:#fff}.demo-arrow{font-size:32px;color:#667eea}.features{padding:70px 40px;text-align:center}.features h2{font-size:32px;margin-bottom:40px}.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;max-width:900px;margin:0 auto}.feature-card{background:#fff;border-radius:16px;padding:30px 20px;box-shadow:0 2px 12px #0000000f}.feature-icon{font-size:36px;margin-bottom:14px}.feature-card h3{font-size:16px;margin-bottom:8px}.feature-card p{font-size:13px;color:#777}.pricing{padding:70px 40px;background:#f8f9ff;text-align:center}.pricing h2{font-size:32px;margin-bottom:10px}.pricing-sub{color:#888;margin-bottom:40px}.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:900px;margin:0 auto}.plan-card{background:#fff;border-radius:20px;padding:36px 28px;box-shadow:0 4px 20px #00000014;position:relative}.plan-popular{border:2px solid #667eea;transform:scale(1.04)}.plan-badge{position:absolute;top:-14px;left:50%;transform:translate(-50%);background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:4px 16px;border-radius:20px;font-size:12px;font-weight:600}.plan-name{font-size:18px;font-weight:700;margin-bottom:12px}.plan-price{font-size:42px;font-weight:800;color:#667eea}.plan-period{font-size:14px;color:#999;margin-bottom:24px}.plan-features{list-style:none;text-align:left;margin-bottom:28px}.plan-features li{padding:6px 0;font-size:14px;color:#555}.btn-plan-ghost{width:100%;padding:12px;border:2px solid #667eea;color:#667eea;background:transparent;border-radius:10px;cursor:pointer;font-weight:600;font-size:14px}.btn-plan-ghost:hover{background:#667eea;color:#fff}.btn-plan-primary{width:100%;padding:12px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:10px;cursor:pointer;font-weight:600;font-size:14px}.btn-plan-primary:hover{opacity:.9}.btn-plan-disabled{width:100%;padding:12px;background:#f0f0f0;color:#aaa;border:none;border-radius:10px;cursor:not-allowed;font-size:14px}.faq{padding:70px 40px;max-width:700px;margin:0 auto}.faq h2{font-size:32px;margin-bottom:30px;text-align:center}.faq-item{background:#fff;border-radius:12px;padding:18px 22px;margin-bottom:12px;cursor:pointer;box-shadow:0 1px 6px #0000000f}.faq-q{display:flex;justify-content:space-between;font-weight:600}.faq-icon{color:#667eea;font-size:20px}.faq-a{margin-top:12px;color:#666;font-size:14px;line-height:1.6}.footer{text-align:center;padding:30px;color:#999;font-size:13px}.footer a{color:#667eea;text-decoration:none}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:200}.modal{background:#fff;border-radius:20px;padding:48px 40px;max-width:420px;width:90%;text-align:center;position:relative}.modal-close{position:absolute;top:16px;right:16px;background:none;border:none;cursor:pointer;font-size:18px;color:#999}.modal h2{margin-bottom:10px}.modal p{color:#666;margin-bottom:28px}.login-hint{font-size:12px!important;color:#bbb!important;margin-top:20px!important}.modal-recharge{max-width:480px!important;padding:40px 36px!important}.recharge-sub{color:#888;font-size:14px;margin-bottom:24px!important}.packages{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:24px}.package-item{border:2px solid #e5e7eb;border-radius:14px;padding:16px 10px;cursor:pointer;position:relative;transition:all .2s;text-align:center}.package-item:hover{border-color:#667eea}.package-item.selected{border-color:#667eea;background:#f0f3ff}.pkg-badge{position:absolute;top:-10px;left:50%;transform:translate(-50%);background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:2px 10px;border-radius:20px;font-size:11px;white-space:nowrap}.pkg-count{font-size:20px;font-weight:800;color:#333;margin-bottom:4px;margin-top:4px}.pkg-price{font-size:22px;font-weight:700;color:#667eea}.pkg-unit{font-size:11px;color:#aaa;margin-top:2px}.paypal-btn-wrap{margin:16px 0 8px;min-height:50px}.paypal-hint{font-size:12px;color:#aaa;text-align:center;margin-bottom:4px}.paypal-loading{text-align:center;padding:20px;color:#667eea;font-size:14px}.paypal-success{background:#f0fdf4;border:1px solid #86efac;border-radius:10px;padding:16px;text-align:center;color:#16a34a;font-size:15px;margin:12px 0}.paypal-error{color:#c00;font-size:13px;text-align:center;margin:8px 0}.paypal-notice{display:flex;align-items:flex-start;gap:12px;background:#fff8ec;border:1px solid #fde68a;border-radius:10px;padding:14px 16px;margin-bottom:18px;text-align:left}.paypal-notice-icon{font-size:22px;flex-shrink:0}.paypal-notice-title{font-weight:600;font-size:14px;margin-bottom:2px}.paypal-notice-sub{font-size:12px;color:#888}.waitlist-form{display:flex;gap:10px}.waitlist-input{flex:1;border:1.5px solid #ddd;border-radius:8px;padding:10px 14px;font-size:14px;outline:none}.waitlist-input:focus{border-color:#667eea}.btn-waitlist{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:10px 20px;border-radius:8px;cursor:pointer;font-weight:600;font-size:14px;white-space:nowrap}.btn-waitlist:disabled{opacity:.5;cursor:not-allowed}.waitlist-done{display:flex;align-items:center;gap:14px;background:#f0fdf4;border:1px solid #86efac;border-radius:10px;padding:14px 16px;text-align:left}.waitlist-done-icon{font-size:24px}.waitlist-done span{font-size:13px;color:#555}.waitlist-error{color:#c00;font-size:13px;margin-top:8px}.app-layout{display:flex;min-height:calc(100vh - 64px);width:100%}.sidebar{width:180px;background:#fff;padding:20px 12px;border-right:1px solid #eee;display:flex;flex-direction:column;gap:8px;flex-shrink:0}.tab-btn{padding:12px 16px;border:none;background:transparent;border-radius:10px;cursor:pointer;text-align:left;font-size:14px;font-weight:500;color:#666;transition:all .2s}.tab-btn.active{background:#f0f2ff;color:#667eea}.tab-btn:hover{background:#f8f9ff}.app-content{flex:1;padding:32px;min-width:0;overflow-x:hidden}.tool-inner,.profile-inner{max-width:900px;margin:0 auto;width:100%}.credits-empty-banner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;background:linear-gradient(135deg,#fff3eb,#ffe4d0);border:1.5px solid #f97316;border-radius:12px;padding:16px 20px;margin-bottom:20px}.credits-empty-left{display:flex;align-items:center;gap:12px}.credits-empty-icon{font-size:28px}.credits-empty-title{font-weight:700;font-size:15px;color:#c2410c}.credits-empty-sub{font-size:13px;color:#78350f;margin-top:2px}.btn-recharge-cta{background:linear-gradient(135deg,#f97316,#ef4444);color:#fff;border:none;padding:10px 22px;border-radius:8px;cursor:pointer;font-weight:700;font-size:14px;white-space:nowrap}.credits-bar{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding:12px 18px;background:#f0f5ff;border-radius:10px;margin-bottom:20px;font-size:14px;border:1px solid #dde5ff}.credits-bar.credits-warning{background:#fff8f0;border-color:#ffcc80}.credits-tip{color:#e67e00;font-size:13px}.btn-upgrade-sm{margin-left:auto;background:#f97316;color:#fff;border:none;padding:6px 16px;border-radius:6px;cursor:pointer;font-size:13px;font-weight:600}.upload-area{border:2.5px dashed #c0caff;border-radius:14px;padding:60px;text-align:center;cursor:pointer;background:#fafbff;transition:all .25s;margin-bottom:20px}.upload-area:hover{border-color:#667eea;background:#f0f3ff}.upload-icon{font-size:48px;margin-bottom:12px}.upload-area p{color:#777}.hint{font-size:13px!important;color:#aaa!important;margin-top:6px}.upload-area img{max-width:100%;max-height:360px;border-radius:8px}.action-btn{text-align:center;margin-bottom:20px}.btn-process{padding:14px 56px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:10px;font-size:16px;font-weight:700;cursor:pointer;transition:transform .2s}.btn-process:hover:not(:disabled){transform:translateY(-2px)}.btn-process:disabled{opacity:.5;cursor:not-allowed}.error-msg{background:#fff0f0;color:#c00;padding:12px 16px;border-radius:8px;margin-bottom:16px}.result h3{margin-bottom:16px}.comparison{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}.image-box{text-align:center}.image-box p{margin-bottom:8px;color:#666;font-weight:600}.image-box img{width:100%;border-radius:8px;box-shadow:0 4px 12px #0000001a}.checkered{background:linear-gradient(45deg,#ccc 25%,transparent 25%),linear-gradient(-45deg,#ccc 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#ccc 75%),linear-gradient(-45deg,transparent 75%,#ccc 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0;background-color:#fff}.btn-download{display:block;width:100%;padding:14px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:10px;font-size:16px;font-weight:600;cursor:pointer}.profile-page h2{margin-bottom:24px}.profile-card{display:flex;align-items:center;gap:20px;background:#fff;border-radius:16px;padding:24px;box-shadow:0 2px 12px #0000000f;margin-bottom:20px}.profile-avatar{width:72px;height:72px;border-radius:50%;border:3px solid #667eea}.profile-name{font-size:20px;font-weight:700;margin-bottom:4px}.profile-email{color:#888;font-size:14px;margin-bottom:10px}.profile-plan{display:flex;align-items:center;gap:12px}.plan-tag{padding:3px 12px;border-radius:20px;font-size:12px;font-weight:600}.plan-tag.free{background:#f0f0f0;color:#888}.plan-tag.pro{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.plan-since{font-size:12px;color:#bbb}.credits-card{display:flex;align-items:center;gap:30px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:16px;padding:28px 32px;margin-bottom:20px}.credits-num{font-size:56px;font-weight:800;line-height:1}.credits-label{font-size:14px;opacity:.8;margin-top:4px}.credits-detail{flex:1}.credits-detail p{font-size:14px;opacity:.9;margin-bottom:6px}.btn-recharge-card{background:#fff3;border:1.5px solid rgba(255,255,255,.5);color:#fff;padding:10px 20px;border-radius:10px;cursor:pointer;font-size:14px;font-weight:600;white-space:nowrap;transition:background .2s}.btn-recharge-card:hover{background:#ffffff4d}.upgrade-banner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;background:#fff8ec;border:1.5px solid #ffcc66;border-radius:12px;padding:18px 22px;margin-bottom:24px}.upgrade-banner p{font-size:13px;color:#888;margin-top:4px}.btn-upgrade{background:linear-gradient(135deg,#f97316,#ef4444);color:#fff;border:none;padding:10px 22px;border-radius:8px;cursor:pointer;font-weight:600;white-space:nowrap}.history h3{margin-bottom:16px}.loading-text,.empty-text{color:#bbb;font-size:14px}.history-table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 8px #0000000d}.history-table th{background:#f8f9ff;padding:12px 16px;font-size:13px;color:#888;text-align:left}.history-table td{padding:12px 16px;font-size:13px;border-top:1px solid #f0f0f0}.action-tag{padding:2px 10px;border-radius:10px;font-size:12px}.action-tag.success{background:#e8fae8;color:#2a9a2a}.action-tag.fail{background:#ffeaea;color:#c00}.action-tag.gift{background:#e8eeff;color:#667eea}.positive{color:#2a9a2a;font-weight:600}.negative{color:#c44;font-weight:600}@media(max-width:768px){.hero h1{font-size:30px}.features-grid{grid-template-columns:repeat(2,1fr)}.pricing-grid{grid-template-columns:1fr}.plan-popular{transform:scale(1)}.demo-comparison{display:none}.comparison{grid-template-columns:1fr}.app-layout{flex-direction:column}.sidebar{width:100%;flex-direction:row;border-right:none;border-bottom:1px solid #eee}.app-content{padding:16px}.credits-card{flex-direction:column;text-align:center}.navbar{padding:0 16px}.packages{grid-template-columns:1fr}.waitlist-form{flex-direction:column}.credits-empty-banner{flex-direction:column;align-items:flex-start}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}#app{width:100%;max-width:1200px}