.pn-page { max-width: 1120px; margin: 0 auto; padding: var(--space-4) var(--space-6) var(--space-8); }

   
   .tool-page__content { display: grid; grid-template-columns: 1fr 340px; gap: var(--space-5); align-items: start; }
   .tool-right-col { display: flex; flex-direction: column; gap: var(--space-4); position: sticky; top: var(--space-4); }
   
   @media (max-width: 900px) {
       .tool-page__content { grid-template-columns: 1fr; gap: var(--space-4); }
       .tool-right-col { position: static; }
   }
   
   
   .pn-ad { margin: var(--space-4) 0; text-align: center; overflow: hidden; }
   .pn-ad__wrap { display: inline-block; max-width: 100%; overflow: hidden; }
   .pn-ad__wrap:empty { display: none; }
   .pn-ad:has(.pn-ad__wrap:empty:only-child) { display: none; }
   .pn-ad--728 { display: block; } .pn-ad--300 { display: none; }
   @media (max-width: 768px) { .pn-ad--728 { display: none; } .pn-ad--300 { display: block; } }
   .pn-ad iframe { max-width: 100% !important; }
   .pn-ad--sidebar { margin: 0; }
   .pn-ad--result { margin: var(--space-4) 0; text-align: center; }
   
   
   .tool-preview { background: var(--bg-secondary); border: 1px solid var(--gray-100); border-radius: var(--radius-xl); overflow: hidden; }
   .tool-preview__image-area { position: relative; }
   
   .drop-zone {
       position: relative; border: 2px dashed var(--gray-300); border-radius: var(--radius-xl);
       padding: var(--space-10) var(--space-6); text-align: center; cursor: pointer;
       background: var(--bg-secondary); transition: all 0.2s; min-height: 340px;
       display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--space-2);
   }
   .drop-zone:hover, .drop-zone.dragover { border-color: var(--primary-400); background: var(--primary-50); }
   .drop-zone__input { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%; }
   .drop-zone__icon { color: var(--text-tertiary); margin-bottom: var(--space-2); }
   .drop-zone:hover .drop-zone__icon { color: var(--primary-500); }
   .drop-zone__text { font-size: 17px; font-weight: 600; color: var(--text-primary); }
   .drop-zone__hint { font-size: 13px; color: var(--text-tertiary); }
   
   
   .pn-file-card {
       display: flex; align-items: center; gap: var(--space-4);
       padding: var(--space-6);
       min-height: 340px;
   }
   .pn-file-card__icon { flex-shrink: 0; color: var(--primary-500); padding: var(--space-3); background: var(--primary-50); border-radius: var(--radius-lg); }
   .pn-file-card__body { flex: 1; min-width: 0; }
   .pn-file-card__name { margin: 0 0 4px; font-size: 16px; font-weight: 600; word-break: break-all; }
   .pn-file-card__pages { font-size: 13px; color: var(--text-secondary); margin-bottom: 2px; font-weight: 500; }
   .pn-file-card__size { font-size: 12px; color: var(--text-tertiary); }
   
   .tc-actions { padding: 12px; display: flex; gap: 8px; background: var(--bg-tertiary); border-top: 1px solid var(--gray-100); }
   .tc-actions .btn { flex: 1; font-size: 12px; display: inline-flex; align-items: center; justify-content: center; gap: 6px; }
   .tc-actions .btn svg { flex-shrink: 0; }
   
   
   .pn-overlay { position: absolute; inset: 0; background: rgba(15,23,42,0.8); backdrop-filter: blur(4px); display: flex; flex-direction: column; align-items: center; justify-content: center; border-radius: var(--radius-xl); z-index: 10; gap: 12px; }
   .pn-overlay.hidden { display: none; }
   .pn-overlay__text { color: var(--text-primary); font-size: var(--text-sm); font-weight: 500; }
   .pn-spinner { width: 44px; height: 44px; border: 4px solid var(--gray-200); border-top-color: var(--primary-600); border-radius: 50%; animation: pn-spin 0.8s linear infinite; }
   @keyframes pn-spin { to { transform: rotate(360deg); } }
   
   
   .tool-settings { background: var(--bg-secondary); border: 1px solid var(--gray-100); border-radius: var(--radius-xl); padding: var(--space-4); display: flex; flex-direction: column; gap: var(--space-4); }
   .tool-settings__title { font-size: 13px; font-weight: 700; color: var(--text-secondary); display: flex; align-items: center; gap: 6px; text-transform: uppercase; letter-spacing: 0.4px; padding-bottom: var(--space-2); border-bottom: 1px solid var(--gray-100); }
   .tool-settings__title svg { flex-shrink: 0; color: var(--primary-500); }
   
   .pn-field { display: flex; flex-direction: column; gap: 6px; }
   .pn-field__label { font-size: 11px; font-weight: 700; color: var(--text-secondary); display: flex; justify-content: space-between; align-items: center; text-transform: uppercase; letter-spacing: 0.4px; }
   .pn-field__value { background: var(--primary-100); color: var(--primary-700); padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 700; text-transform: none; letter-spacing: 0; }
   
   .pn-field-row { display: grid; grid-template-columns: 1.3fr 1fr; gap: 10px; }
   
   .pn-select, .pn-input { padding: 8px 10px !important; font-size: 13px !important; }
   
   
   .pn-range { width: 100%; -webkit-appearance: none; appearance: none; height: 6px; border-radius: 3px; background: var(--gray-200); outline: none; }
   .pn-range::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 18px; height: 18px; border-radius: 50%; background: var(--primary-600); cursor: pointer; border: 2px solid #fff; box-shadow: 0 1px 3px rgba(0,0,0,0.2); }
   .pn-range::-moz-range-thumb { width: 18px; height: 18px; border-radius: 50%; background: var(--primary-600); cursor: pointer; border: 2px solid #fff; box-shadow: 0 1px 3px rgba(0,0,0,0.2); }
   
   
   .pn-pos-picker {
       display: flex; flex-direction: column; align-items: center;
       padding: 6px 0;
   }
   .pn-pos-page {
       width: 144px;
       aspect-ratio: 8.5 / 11;
       background: #fff;
       border: 2px solid var(--gray-200);
       border-radius: 4px;
       box-shadow: 0 2px 6px rgba(0,0,0,0.06);
       display: grid;
       grid-template-columns: 1fr 1fr 1fr;
       grid-template-rows: auto 1fr auto;
       padding: 14px 12px;
       align-items: center;
       justify-items: center;
       gap: 4px;
   }
   .pn-pos-mid {
       grid-column: 1 / -1;
       width: 100%;
       display: flex; flex-direction: column;
       align-items: center; justify-content: center;
       gap: 5px;
       padding: 0 4px;
   }
   .pn-pos-mid span {
       display: block; height: 3px;
       background: var(--gray-100); border-radius: 1.5px;
   }
   .pn-pos-mid span:nth-child(1) { width: 100%; }
   .pn-pos-mid span:nth-child(2) { width: 85%; }
   .pn-pos-mid span:nth-child(3) { width: 60%; }
   
   .pn-pos-dot {
       width: 16px; height: 16px; border-radius: 50%;
       border: 2px solid var(--gray-300);
       background: var(--bg-primary);
       cursor: pointer; padding: 0;
       transition: transform 0.12s ease, background 0.12s, border-color 0.12s, box-shadow 0.12s;
       position: relative;
   }
   .pn-pos-dot::after {
       content: ''; position: absolute; inset: -8px;  
   }
   .pn-pos-dot:hover { border-color: var(--primary-400); background: var(--primary-50); transform: scale(1.1); }
   .pn-pos-dot.active {
       background: var(--primary-600);
       border-color: var(--primary-600);
       box-shadow: 0 0 0 4px rgba(99,102,241,0.2);
       transform: scale(1.15);
   }
   
   .pn-pos-current {
       margin-top: 10px;
       font-size: 12px; font-weight: 600;
       color: var(--primary-700);
       padding: 4px 10px;
       background: var(--primary-50);
       border-radius: 10px;
   }
   
   
   .pn-preview-box {
       background: var(--bg-tertiary);
       border: 1px dashed var(--gray-200);
       border-radius: var(--radius-md);
       padding: 12px 14px;
       display: flex; align-items: center; justify-content: space-between;
       gap: var(--space-3);
       min-height: 48px;
   }
   .pn-preview-box__label { font-size: 11px; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.4px; font-weight: 700; }
   .pn-preview-box__value {
       font-family: Georgia, 'Times New Roman', serif;
       font-size: 15px;
       font-weight: 500;
       color: #333;
       background: #fff;
       padding: 4px 10px;
       border-radius: 4px;
       border: 1px solid var(--gray-200);
       min-width: 60px; text-align: center;
   }
   
   
   .tc-note { padding: 10px 12px; background: var(--bg-tertiary); border-radius: var(--radius-md); font-size: 11px; color: var(--text-tertiary); line-height: 1.5; display: flex; align-items: flex-start; gap: 6px; border: 1px solid var(--gray-100); }
   .tc-note svg { flex-shrink: 0; margin-top: 1px; }
   
   #btn-apply { display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
   #btn-apply svg { flex-shrink: 0; }
   
   
   .tc-breadcrumb { font-size: var(--text-xs); color: var(--text-tertiary); margin-bottom: var(--space-4); }
   .tc-breadcrumb a { color: var(--text-tertiary); text-decoration: none; } .tc-breadcrumb a:hover { color: var(--primary-600); }
   .tc-breadcrumb span { margin: 0 var(--space-1); } .tc-breadcrumb span:last-child { color: var(--text-primary); font-weight: 500; }
   .tc-header { display: flex; align-items: flex-start; gap: var(--space-4); margin-bottom: var(--space-6); }
   .tc-header__icon { flex-shrink: 0; margin-top: 2px; color: var(--primary-600); }
   .tc-header__title { font-size: var(--text-2xl); font-weight: 700; margin: 0 0 var(--space-1); }
   .tc-header__desc { font-size: var(--text-sm); color: var(--text-secondary); margin: 0; line-height: 1.5; }
   .tc-result { max-width: 520px; margin: 0 auto; padding: var(--space-6); }
   .tc-result__header { text-align: center; margin-bottom: var(--space-6); }
   .tc-result__icon { margin-bottom: var(--space-2); color: var(--success); }
   .tc-result__title { font-size: var(--text-xl); font-weight: 700; color: var(--success); margin: 0 0 var(--space-2); }
   .tc-result__meta { font-size: var(--text-sm); color: var(--text-secondary); margin: 0; }
   .tc-result__file { display: flex; align-items: center; gap: 12px; padding: var(--space-4); background: var(--bg-tertiary); border-radius: var(--radius-lg); margin-bottom: var(--space-4); border: 1px solid var(--gray-100); }
   .tc-result__file-icon { flex-shrink: 0; color: var(--text-tertiary); }
   .tc-result__filename { font-weight: 600; font-size: 14px; word-break: break-all; }
   .tc-result__filesize { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
   .tc-result__rename { margin-bottom: var(--space-4); }
   .tc-result__rename label { font-size: 12px; font-weight: 600; color: var(--text-secondary); display: block; margin-bottom: 6px; }
   .tc-result__rename input { width: 100%; padding: 10px 12px; border: 1.5px solid var(--gray-200); border-radius: var(--radius-md); font-size: 14px; background: var(--bg-primary); box-sizing: border-box; }
   .tc-result__rename input:focus { outline: none; border-color: var(--primary-400); box-shadow: 0 0 0 3px rgba(99,102,241,0.1); }
   .tc-result__actions { display: flex; gap: 10px; margin-bottom: var(--space-4); }
   .tc-result__actions .btn { flex: 1; text-align: center; display: inline-flex; align-items: center; justify-content: center; gap: 6px; }
   .tc-result__actions .btn svg { flex-shrink: 0; }
   .tc-related { padding-top: var(--space-4); border-top: 1px solid var(--gray-100); }
   .tc-related__title { font-size: 11px; font-weight: 700; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: var(--space-3); }
   .tc-related__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
   .tc-related__grid a { display: flex; align-items: center; justify-content: center; gap: 6px; padding: 10px; background: var(--bg-tertiary); border-radius: var(--radius-md); font-size: 13px; font-weight: 500; color: var(--text-secondary); text-decoration: none; border: 1px solid transparent; }
   .tc-related__grid a svg { flex-shrink: 0; }
   .tc-related__grid a:hover { background: var(--primary-50); color: var(--primary-700); border-color: var(--primary-200); }
   .tc-faq { display: flex; flex-direction: column; gap: var(--space-3); }
   .tc-faq details { background: var(--bg-secondary); border-radius: var(--radius-lg); border: 1px solid var(--gray-100); padding: var(--space-4); }
   .tc-faq details[open] { border-color: var(--primary-200); }
   .tc-faq summary { font-weight: 500; cursor: pointer; font-size: var(--text-sm); }
   .tc-faq p { margin-top: var(--space-3); font-size: var(--text-sm); color: var(--text-secondary); line-height: 1.6; }
   
   .hidden { display: none !important; }
   
   @media (max-width: 600px) {
       .tc-header { gap: var(--space-3); } .tc-header__title { font-size: var(--text-xl); }
       .tc-result { padding: var(--space-4); }
       .tc-related__grid { grid-template-columns: 1fr; }
       .drop-zone { padding: var(--space-6) var(--space-3); min-height: 240px; }
       .drop-zone__text { font-size: 15px; }
       .pn-file-card { flex-direction: column; text-align: center; min-height: 240px; }
       .pn-pos-page { width: 128px; }
   }


.pn-panel {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 12px; padding: var(--space-6) var(--space-4); margin: var(--space-4) 0;
    background: var(--bg-secondary); border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
}
.pn-panel.hidden { display: none; }