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18px}.logo-container{display:flex;align-items:center;justify-content:center;gap:18px;margin-bottom:10px}.logo{width:56px;height:56px;background:linear-gradient(135deg,var(--primary),var(--info));border-radius:50%;display:flex;align-items:center;justify-content:center;color:white;font-size:2rem;box-shadow:var(--shadow)}.header-content h1{font-size:2.2rem;font-weight:900;background:linear-gradient(90deg,var(--primary),var(--info));-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-0.5px;margin-bottom:7px}.subtitle{font-size:1.08rem;color:var(--dark);opacity:0.82;max-width:420px;margin:0 auto}.announcement-collapsible{max-width:720px;margin:10px auto 22px auto;box-shadow:var(--shadow);border-radius:var(--radius);overflow:visible;background:none;transition:box-shadow 0.2s}.announcement-header{display:flex;align-items:center;justify-content:space-between;font-size:1.10rem;font-weight:600;padding:13px 20px 10px 20px;background:linear-gradient(135deg,#ff9966 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var(--border);background:white;color:var(--primary);transition:all 0.2s;display:flex;align-items:center;justify-content:center;gap:5px;text-decoration:none}.action-btn:hover{background:var(--primary);color:white}.preview-container{margin-top:15px;text-align:center}.file-preview{max-width:100%;max-height:300px;border-radius:8px;box-shadow:0 4px 10px rgba(0,0,0,0.1);cursor:pointer}.video-preview{width:100%;max-height:300px;border-radius:8px}.audio-preview-container{margin-top:10px;text-align:center}.audio-preview-container audio{width:100%;max-width:400px}.audio-preview-container audio[type='audio/ac3'],.audio-preview-container audio[type='audio/vnd.dts'],.audio-preview-container audio[type='audio/vnd.rn-realaudio'],.audio-preview-container audio[type='audio/x-wavpack'],.audio-preview-container audio[type='audio/ape'],.audio-preview-container audio[type='audio/tta']{width:100%;max-width:400px}.url-link-container{margin-top:15px;padding:12px;background:#e6f7ff;border-radius:8px;border-left:3px solid var(--info)}.url-link{font-size:0.9rem;color:var(--dark);word-break:break-all;margin-top:5px}.default-preview{display:flex;align-items:center;margin-top:10px;padding:10px;background:#f8f9fe;border-radius:10px;border:1px dashed var(--border);gap:9px}.default-preview img{width:52px;height:52px;border-radius:8px;margin-right:10px;object-fit:cover;border:2px solid white;box-shadow:0 3px 10px rgba(0,0,0,0.08)}.preview-container{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.preview-item{position:relative;width:61px;height:61px;border-radius:7px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,0.06);border:1px solid #e9ecef}.preview-item img{width:100%;height:100%;object-fit:cover}.preview-item 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spin{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}.loading-spinner{display:inline-block;width:22px;height:22px;border:3px solid rgba(94,114,228,0.3);border-radius:50%;border-top-color:var(--primary);animation:spin 1s linear infinite;margin-right:10px}@media (max-width:900px){.container{max-width:100%;padding:8px}.main-cards{gap:16px}.app-card,.notice-card{min-width:0}.announcement-collapsible{max-width:100%}.decrypted-file-item{padding:12px}.file-actions{flex-direction:column}.file-preview{max-height:250px}.video-preview{max-height:250px}.audio-preview-container audio{max-width:100%}.audio-preview-container audio[type='audio/ac3'],.audio-preview-container audio[type='audio/vnd.dts'],.audio-preview-container audio[type='audio/vnd.rn-realaudio'],.audio-preview-container audio[type='audio/x-wavpack'],.audio-preview-container audio[type='audio/ape'],.audio-preview-container audio[type='audio/tta']{max-width:100%}.action-btn{font-size:0.85rem;padding:7px 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4px}.announcement-collapsible.collapsed .announcement-header{border-radius:13px}.announcement-collapsible.collapsed .announcement-content{border-radius:0 0 13px 13px}.main-cards{gap:13px}.app-card,.notice-card{min-width:0;border-radius:10px;margin:0;box-shadow:0 2px 8px rgba(94,114,228,0.06);max-width:100%;width:100%}.card-header,.notice-header{border-radius:10px 10px 0 0;font-size:1.02rem;padding:13px 12px}.card-body,.notice-body{padding:10px 7px 10px 7px}.form-group,.options-row{margin-bottom:10px;margin-top:0}.form-label{font-size:0.98rem;margin-bottom:4px}.file-input-label{padding:8px;font-size:0.98rem}.preview-container{gap:4px;margin-top:5px}.preview-item{width:46px;height:46px;border-radius:5px}.default-preview img{width:30px;height:30px}.btn{padding:8px 0;font-size:0.92rem;border-radius:6px;min-width:0;width:100%}.btn i{font-size:1rem;margin-right:6px}.btn-group{gap:5px;margin-top:6px}.result-section,.notice-card{border-radius:10px}.result-header{flex-direction:column;gap:4px;align-items:flex-start}.decrypted-result-header{flex-direction:column;align-items:flex-start}.loading-progress-container{width:100%;max-width:none;margin:10px 0}.clear-result-btn{padding:5px 8px;font-size:0.82rem}}@media (max-width:600px){.btn{padding:7px 0;font-size:0.88rem;border-radius:5px}.btn i{font-size:0.95rem;margin-right:5px}.btn-group{gap:4px}.container{padding:2px}.logo{width:45px;height:45px;font-size:1.3rem}.header-content h1{font-size:1.36rem}.subtitle{font-size:0.95rem}.notice-header,.card-header{font-size:1rem}.app-card,.notice-card{border-radius:10px}.announcement-collapsible{border-radius:9px}.announcement-header{font-size:1rem;padding:6px 10px;border-radius:9px 9px 0 0}.announcement-item{font-size:0.93rem}.announcement-collapsible.collapsed .announcement-header{border-radius:9px}.announcement-content{border-radius:0 0 9px 9px}.announcement-collapsible.collapsed .announcement-content{border-radius:0 0 9px 9px}.file-header{flex-direction:column;align-items:flex-start}.file-icon{margin-bottom:5px}.file-preview{max-height:180px}.video-preview{max-height:180px}.clear-result-btn{padding:4px 7px;font-size:0.78rem}#fullscreenOverlay{padding:5px}#fullscreenOverlay .nav-arrow{width:40px;height:40px;font-size:16px}#fullscreenOverlay .nav-arrow.left{left:5px}#fullscreenOverlay .nav-arrow.right{right:5px}#fullscreenOverlay .close-btn{top:5px;right:5px;width:30px;height:30px;font-size:14px}#fullscreenOverlay .image-info{bottom:5px;font-size:11px;padding:6px 12px;max-width:calc(100% - 20px);overflow:hidden;text-overflow:ellipsis}#fullscreenOverlay .zoom-btn{width:28px;height:28px;font-size:12px;right:5px}#fullscreenOverlay .zoom-in{top:45px}#fullscreenOverlay .zoom-out{top:80px}#fullscreenOverlay .zoom-reset{top:115px;font-size:10px}}#imageUrlInput{user-select:text !important;padding-right:35px}.decrypted-result-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:15px;margin-bottom:15px;padding-bottom:10px;border-bottom:1px solid var(--border-color)}.result-header-left{display:flex;align-items:center;gap:10px}.file-count{background:var(--light-bg);color:var(--success);padding:3px 8px;border-radius:12px;font-size:0.9em;font-weight:500}.loading-progress-container{flex:1}.progress-info{display:flex;justify-content:space-between;margin-bottom:5px;font-size:0.9em}.progress-text{color:var(--text-secondary);font-weight:500}.progress-bar{height:6px;background:var(--light-bg);border-radius:3px;overflow:hidden}.progress-fill{height:100%;background:var(--primary);border-radius:3px;transition:width 0.3s ease}.progress-fill.completed{background:var(--success)}.loading-indicator{text-align:center;padding:20px}.clear-btn{position:absolute;right:8px;top:70%;transform:translateY(-50%);background:#ccc;border:none;border-radius:50%;width:24px;height:24px;line-height:24px;text-align:center;cursor:pointer;font-size:16px;color:#fff;padding:0;z-index:10;transition:background 0.3s}.clear-btn:hover{background:#999}.clear-result-btn{padding:7px 11px;font-size:0.9rem;flex:none;min-width:auto;width:auto}.cover-selection-area,.custom-upload-area{border:1px solid var(--border);border-radius:12px;padding:15px;transition:all 0.3s}.cover-selection-area{background:linear-gradient(135deg,#f8f9fe 0%,#eef4ff 100%);border-color:var(--primary)}.custom-upload-area{background:linear-gradient(135deg,#fff8f0 0%,#ffeee0 100%);border-color:var(--secondary)}.format-btn{transition:all 0.3s cubic-bezier(0.4,0,0.2,1) !important}.format-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,0.15)}.format-btn.active{background:var(--primary) !important;color:white !important;border-color:var(--primary) !important;box-shadow:0 4px 12px rgba(94,114,228,0.3)}.format-btn:not(.active){background:white !important;color:var(--dark) !important;border-color:var(--border) !important}.format-btn:not(.active):hover{border-color:var(--primary);color:var(--primary)}.current-cover-info{transition:all 0.3s}.current-cover-info:hover{box-shadow:0 4px 12px rgba(0,0,0,0.08);transform:translateY(-1px)}.selection-header{font-size:1rem}.loading-cover{opacity:0.6;pointer-events:none}.cover-loaded{opacity:1}.format-indicator{display:inline-block;padding:2px 6px;border-radius:4px;font-size:0.7rem;font-weight:600;text-transform:uppercase;margin-left:5px}.format-gif{background:#e8f5e8;color:#2d8f2d}.format-png{background:#e3f2fd;color:#1976d2}.format-jpg{background:#fff3e0;color:#f57c00}#customCoverBtn:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(255,153,102,0.3)}#customCoverBtn.active{background:var(--warning) !important;border-color:var(--warning) !important}.area-hidden{display:none !important}.area-visible{display:block !important}@media(max-width:768px){.format-selector{gap:4px}.format-btn,#customCoverBtn{min-width:60px;padding:6px 8px;font-size:0.8rem}.current-cover-info{padding:10px}.current-cover-info img{width:50px;height:50px}.cover-selection-area,.custom-upload-area{padding:12px}}.announcement-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.6);display:flex;justify-content:center;align-items:center;z-index:10000;backdrop-filter:blur(3px)}.announcement-modal-content{background:white;padding:0;border-radius:15px;box-shadow:0 10px 30px rgba(0,0,0,0.3);max-width:500px;width:90%;text-align:center;position:relative;animation:modalSlideIn 0.3s ease-out}.announcement-modal-header{padding:20px;background:linear-gradient(90deg,var(--primary),#7a8de6);color:white;border-radius:15px 15px 0 0;display:flex;justify-content:space-between;align-items:center}.announcement-modal-header h3{margin:0;font-weight:600}.announcement-close{font-size:28px;font-weight:bold;cursor:pointer;line-height:1}.announcement-modal-body{padding:25px;text-align:left}.announcement-modal-body p{margin:10px 0;line-height:1.6}.announcement-modal-footer{padding:20px;display:flex;gap:15px;justify-content:center;border-top:1px solid #eee}.announcement-btn{padding:10px 25px;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all 0.3s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.announcement-btn-primary{background:linear-gradient(90deg,var(--primary),#7a8de6);color:white}.announcement-btn:hover{transform:translateY(-2px);box-shadow:0 5px 15px rgba(0,0,0,0.1)}.announcement-btn-primary:hover{box-shadow:0 5px 15px rgba(94,114,228,0.3)}@media (max-width:480px){.announcement-modal-content{width:95%}.announcement-modal-header{padding:15px}.announcement-modal-body{padding:20px 15px}.announcement-modal-footer{padding:15px;flex-direction:column}.announcement-btn{width:100%}}.announcement-modal-body a:hover{background:#e3f2fd !important;text-decoration:underline !important}@media (max-width:480px){.announcement-modal-body a{display:inline-block;margin-top:2px}}.noty_bar{margin:8px 0;border-radius:12px !important;box-shadow:0 6px 16px rgba(0,0,0,0.15) !important;border:1px solid rgba(255,255,255,0.2) !important;backdrop-filter:blur(10px);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,'Open Sans','Helvetica Neue',sans-serif}.noty_body{padding:16px 20px !important;font-size:15px !important;line-height:1.5 !important}.noty_progressbar{height:8px !important;border-radius:0 0 12px 12px !important;background:rgba(0,0,0,0.1) !important;opacity:0.7 !important}.noty_progressbar > div{background:linear-gradient(90deg,#5e72e4,#7a8de6) !important;border-radius:0 0 12px 12px !important;height:100%;width:0;transition:width 0s linear !important}.noty_close_button{display:none !important}.noty_close_button:hover{background-color:rgba(0,0,0,0.05) !important;opacity:1;transform:rotate(90deg)}.noty_layout_mixin,#noty_layout__topRight{width:320px !important;max-width:90vw}@media (max-width:768px){.noty_layout_mixin,#noty_layout__topRight{width:calc(100vw - 20px) !important;right:10px !important}.noty_bar{margin:5px 0;border-radius:10px !important}.noty_body{padding:12px 16px !important;font-size:14px !important}.noty_close_button{top:12px !important;right:12px !important;width:20px !important;height:20px !important;line-height:20px !important;font-size:18px !important}}#backToTop{display:none;position:fixed;bottom:30px;right:30px;z-index:99;border:none;outline:none;background:linear-gradient(135deg,#5e72e4,#324cdd);color:white;cursor:pointer;width:50px;height:50px;border-radius:50%;font-size:18px;box-shadow:0 4px 15px rgba(0,0,0,0.3);transition:all 0.3s ease;display:flex;align-items:center;justify-content:center}#backToTop:hover{background:linear-gradient(135deg,#324cdd,#5e72e4);transform:translateY(-5px);box-shadow:0 6px 20px rgba(0,0,0,0.4)}#backToTop:active{transform:translateY(-2px)}