.snf-tool-wrapper.snf-split-container{max-width:620px;width:100%;margin:40px auto;padding:20px;box-sizing:border-box;background:#fff;border-radius:18px;box-shadow:0 2px 14px rgb(0 0 0 / .06)}.snf-tool-title{text-align:center;font-size:56px;font-weight:700;line-height:1.2;margin:20px 0 30px;color:#0b2f63}.snf-upload-box{background:#eef2f6;border:2px dashed #0073aa;border-radius:20px;padding:40px 20px;text-align:center;width:100%;box-sizing:border-box}.snf-upload-title{font-size:22px;font-weight:700;margin-bottom:10px}.snf-upload-subtitle{margin-bottom:25px;color:#666}.snf-upload-btn,.snf-convert-btn,.snf-clear-btn{border:none;border-radius:12px;padding:14px 28px;font-size:18px;cursor:pointer;transition:.2s ease}.snf-upload-btn,.snf-convert-btn{background:#0073aa;color:#fff}.snf-clear-btn{background:#5a5a5a;color:#fff}#snf-split-preview{margin-top:25px}.snf-file-item{background:#fff;padding:18px;margin-bottom:12px;border-radius:12px;box-shadow:0 1px 5px rgb(0 0 0 / .08);word-break:break-word}.snf-options{display:flex;justify-content:center;gap:20px;margin:25px 0;flex-wrap:wrap}.snf-range-wrapper{margin-top:20px}#splitPageRange{width:100%;padding:14px 16px;border:1px solid #ddd;border-radius:10px;font-size:16px;outline:none;box-sizing:border-box;margin-top:10px}.snf-action-buttons{display:flex;justify-content:center;gap:15px;margin-top:25px;flex-wrap:wrap}#snf-split-pdf-result{margin-top:20px;text-align:center}@media screen and (max-width:768px){.snf-tool-wrapper.snf-split-container{max-width:100%;padding:15px}.snf-tool-title{font-size:34px}.snf-upload-btn,.snf-convert-btn,.snf-clear-btn{width:100%}.snf-action-buttons{flex-direction:column}}