@font-face{font-family:"bootstrap-icons";src:url("//cdn.jiexin.name/assets/vendor/bootstrap-icons/font/fonts/bootstrap-icons.woff2") format("woff2");font-display:block}:root{--primary:#007bff;--primary-dark:#0056b3;--success:#28a745;--danger:#dc3545;--secondary:#6c757d;--warning:#ffc107;--info:#17a2b8}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif}.ml-auto{margin-left:auto !important}.mr-1{margin-right:0.25rem !important}.form-group{margin-bottom:1rem}.input-group-prepend,.input-group-append{display:flex}.input-group-prepend .btn,.input-group-prepend .input-group-text,.input-group-append .btn,.input-group-append .input-group-text{position:relative;z-index:2}.input-group-prepend{margin-right:-1px}.input-group-append{margin-left:-1px}.input-group > .input-group-prepend > .btn,.input-group > .input-group-prepend > .input-group-text,.input-group > .input-group-append > .btn,.input-group > .input-group-append > .input-group-text{height:100%;border-radius:0}.input-group > .input-group-prepend:first-child > .btn,.input-group > .input-group-prepend:first-child > .input-group-text{border-top-left-radius:0.375rem;border-bottom-left-radius:0.375rem}.input-group > .input-group-append:last-child > .btn,.input-group > .input-group-append:last-child > .input-group-text{border-top-right-radius:0.375rem;border-bottom-right-radius:0.375rem}.badge{display:inline-block;padding:0.35em 0.65em;font-size:0.75em;font-weight:700;line-height:1;color:#fff;text-align:center;white-space:nowrap;vertical-align:baseline;border-radius:0.375rem}.badge-primary{background-color:var(--primary)}.badge-success{background-color:var(--success)}.badge-danger{background-color:var(--danger)}.badge-warning{color:#212529;background-color:var(--warning)}.badge-info{background-color:var(--info)}.badge-secondary{background-color:var(--secondary)}.custom-control{position:relative;display:block;min-height:1.5rem;padding-left:1.75rem}.custom-control-inline{display:inline-flex;align-items:center;margin-right:1rem;margin-bottom:0.5rem}.custom-control-input{position:absolute;left:0;top:0.25rem;width:1rem;height:1rem;margin:0}.custom-control-label{margin-bottom:0}.custom-control-label::before,.custom-control-label::after{display:none}.navbar{position:sticky;top:0;z-index:1030;box-shadow:0 2px 12px rgba(0,0,0,0.08)}.navbar-brand{font-weight:700;font-size:1.4rem}.hero{background:linear-gradient(135deg,#007bff 0%,#00d4ff 100%);color:#fff;padding:80px 0;text-align:center}.hero h1{font-size:2.8rem;font-weight:700;margin-bottom:1rem}.hero p{font-size:1.2rem;opacity:0.9;margin-bottom:2rem}.hero .btn{padding:12px 32px;font-size:1.1rem;border-radius:30px}.tool-card{transition:all 0.3s ease;border:none;box-shadow:0 2px 8px rgba(0,0,0,0.1);height:100%}.tool-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px rgba(0,0,0,0.15)}.tool-card .card-body{padding:1.5rem}.tool-card .card-title{font-weight:600;font-size:1.1rem;margin-bottom:0.5rem}.tool-card .card-text{color:#666;font-size:0.9rem}.tool-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#007bff 0%,#00d4ff 100%);color:#fff;border-radius:12px;font-size:1.5rem;margin-bottom:1rem}.category-section{padding:60px 0}.category-title{font-weight:700;margin-bottom:2rem;padding-bottom:0.5rem;border-bottom:3px solid #007bff;display:inline-block}.tool-area{background:#fff;border-radius:12px;padding:2rem;box-shadow:0 2px 12px rgba(0,0,0,0.1);margin:2rem 0}.upload-zone{border:2px dashed #dee2e6;border-radius:12px;padding:3rem;text-align:center;cursor:pointer;transition:all 0.3s;background:#f8f9fa}.upload-zone:hover,.upload-zone.dragover{border-color:#007bff;background:#e7f3ff}.upload-zone input[type="file"]{display:none}.upload-zone label{cursor:pointer;color:#666;margin:0}.upload-zone label strong{color:#333;display:block;margin-bottom:0.5rem}.format-option{display:flex;align-items:center;gap:0.5rem;padding:0.75rem 1rem;border:2px solid #dee2e6;border-radius:8px;cursor:pointer;transition:all 0.2s}.format-option:hover{border-color:#007bff}.format-option input:checked + span{color:#007bff;font-weight:600}.format-option:has(input:checked){border-color:#007bff;background:#e7f3ff}.file-list{margin-top:1rem}.file-item{display:flex;justify-content:space-between;align-items:center;padding:0.75rem 1rem;background:#f8f9fa;border-radius:8px;margin-bottom:0.5rem}.file-item .remove-btn{color:#dc3545;cursor:pointer;background:none;border:none;font-size:1.2rem;padding:0 0.5rem}.progress-custom{height:8px;border-radius:4px;margin-top:1rem;overflow:hidden;display:none}.progress-custom.active{display:block}.progress-bar-custom{height:100%;background:linear-gradient(90deg,#007bff,#00d4ff);border-radius:4px;transition:width 0.3s}.result-area{margin-top:2rem;padding:1.5rem;background:#d4edda;border-radius:8px;display:none}.result-area.show{display:block}nav[aria-label="breadcrumb"],nav.breadcrumb{background:#f8f9fa;border-bottom:1px solid #e9ecef}.breadcrumb{background:transparent;padding:0.75rem 0;margin-bottom:0;border-radius:0}nav[aria-label="breadcrumb"] .breadcrumb,nav.breadcrumb .breadcrumb{max-width:1140px;margin:0 auto;padding-left:15px;padding-right:15px}nav.breadcrumb > .container{max-width:1140px}nav.breadcrumb > .container > .breadcrumb{padding-left:0;padding-right:0}.breadcrumb-item a{color:#007bff;text-decoration:none}.site-footer{background:#343a40;color:#fff;padding:40px 0 20px;margin-top:60px}.site-footer h5{font-weight:600;margin-bottom:1.5rem}.site-footer a{color:rgba(255,255,255,0.7);text-decoration:none;transition:color 0.2s}.site-footer a:hover{color:#fff}.footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin-bottom:0.5rem}.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:20px;margin-top:30px;text-align:center}.lang-switcher-footer{display:flex;gap:0.5rem;flex-wrap:wrap}.lang-switcher-footer a{display:inline-block;padding:6px 12px;background:rgba(255,255,255,0.1);border-radius:4px;color:#fff;text-decoration:none;font-size:0.9rem;transition:all 0.2s}.lang-switcher-footer a:hover,.lang-switcher-footer a.active{background:#007bff}@media (max-width:768px){.hero h1{font-size:2rem}.hero{padding:40px 0}.tool-area{padding:1rem}.upload-zone{padding:2rem 1rem}}.feature-list{list-style:none;padding:0}.feature-list li{padding:0.5rem 0;padding-left:1.5rem;position:relative}.feature-list li::before{content:"✓";position:absolute;left:0;color:#28a745;font-weight:bold}.table-custom{width:100%;border-collapse:collapse}.table-custom th,.table-custom td{padding:0.75rem;border:1px solid #dee2e6}.table-custom th{background:#f8f9fa;font-weight:600}.table-custom tr:hover{background:#f8f9fa}