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auto;flex-direction:column;gap:8px;min-width:0}.file-head{display:flex;justify-content:space-between;align-items:center;gap:8px;min-width:0}.file-name{display:block;flex:1;max-width:100%;min-width:0;margin-right:10px;overflow:hidden;font-size:1.25rem;font-weight:700;text-overflow:ellipsis;white-space:nowrap}.icon-btn{display:grid;place-items:center;flex:0 0 auto;width:32px;height:32px;padding:0;border:1px solid rgba(255,255,255,.9);border-radius:10px;background:#fff9;color:#4b5563;font-size:1.125rem;font-weight:600;line-height:1;box-shadow:0 4px 14px #1118270d;transition:background-color .16s ease,color .16s ease,transform .16s ease}.icon-btn:hover{background:var(--danger-soft);color:var(--danger);transform:scale(1.05)}.file-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;color:var(--muted);font-size:.875rem;font-weight:500}.format-badge{padding:3px 9px;border:1px solid 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20px;font-size:1rem}.progress-container{width:100%;height:10px;margin-top:10px;overflow:hidden;border:0;border-radius:999px;background:#11182714}.progress-fill{height:100%;width:0%;border-radius:999px;background:var(--accent-grad);transition:width .3s ease}.features{position:relative;z-index:1;padding-top:64px;padding-bottom:72px}.features-title,.features h2{margin-bottom:32px;font-size:clamp(2rem,4vw,2.75rem);font-weight:700;line-height:1.15;text-align:center}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}.feature{padding:30px;border:1px solid var(--glass-border);border-radius:var(--radius);background:var(--glass-bg);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);box-shadow:var(--glass-shadow);transition:transform .3s ease,box-shadow .3s ease}.feature:hover{transform:translateY(-3px);box-shadow:var(--glass-shadow-lg)}.feature-icon{display:grid;place-items:center;width:52px;height:52px;margin-bottom:18px;border-radius:var(--radius-sm)}.feature-icon svg{width:26px;height:26px}.feature-icon--yellow{background:linear-gradient(135deg,#fef3c7,#fde047);color:#92400e}.feature-icon--green{background:linear-gradient(135deg,#dcfce7,#a7f3d0);color:#166534}.feature-icon--orange{color:#9a3412;background:linear-gradient(135deg,#ffedd5,#fdba74)}.feature h3{margin-bottom:8px;font-size:1.125rem;font-weight:700}.feature p{color:var(--muted);font-size:.9375rem;font-weight:500}.faq{position:relative;z-index:1}.faq h2{margin-bottom:32px;font-size:clamp(2rem,4vw,2.75rem);font-weight:700;line-height:1.15;text-align:center}.faq-list{display:flex;flex-direction:column;gap:16px;max-width:800px;margin:0 auto}.faq-item{background:#fff9;backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.8);border-radius:12px;overflow:hidden}.faq-question{padding:16px 24px;font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center}.faq-question::-webkit-details-marker{display:none}.faq-answer{padding:0 24px 16px;color:#4b5563}.site-footer{position:relative;z-index:1;padding:28px 0;border-top:1px solid rgba(255,255,255,.6);background:#ffffff59;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.footer-inner{display:flex;flex-direction:column;gap:4px;font-size:.875rem;font-weight:500;color:var(--muted);text-align:center}@media (max-width: 820px){.file-grid{grid-template-columns:1fr}}@media (max-width: 768px){main{padding-bottom:120px}.toolbar{bottom:0;left:0;transform:none;width:100%;max-width:none;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid #E5E7EB;border-radius:0;padding:16px;box-shadow:0 -4px 12px #0000000d}.header-inner{padding:12px 24px}.header-logo{height:36px}.header-brand{font-size:1.35rem}.compare-wrapper{display:none}.faq h2{margin-bottom:24px;text-align:center}}@media (max-width: 640px){.container{padding:0 16px}.hero-section{padding-top:44px;padding-bottom:28px}.hero-title{font-size:clamp(1.875rem,8.5vw,2.25rem)}.header-inner{padding:12px 16px}.header-logo{height:34px}.header-brand{font-size:1.25rem}.header-logo-group{gap:8px}.support-btn{min-height:40px;padding:8px 14px;font-size:.875rem}.dropzone{padding:40px 16px}.dropzone h3{font-size:1.25rem}.toolbar{padding:16px}.toolbar-status,.toolbar-actions{width:100%}.toolbar-actions .btn{flex:1 1 auto}.file-card{padding:16px;gap:16px}.file-grid{grid-template-columns:1fr}.features{padding-top:44px;padding-bottom:52px}}@media (max-width: 380px){.support-btn{gap:0;padding:8px 10px}.support-btn-label{display:none}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}