.snf-tool-wrapper.snf-merge-container{max-width:620px;margin:40px auto;padding:20px;width:100%;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:12px}.snf-upload-subtitle{margin-bottom:25px;color:#666}.snf-upload-btn{background:#0073aa;color:#fff;border:none;padding:14px 28px;border-radius:12px;cursor:pointer;font-size:18px;font-weight:600}#snf-merge-preview{margin-top:20px}.snf-file-item{background:#fff;padding:14px;margin-bottom:12px;border-radius:12px;box-shadow:0 1px 4px rgb(0 0 0 / .08)}.snf-options{display:flex;justify-content:center;gap:20px;margin:25px 0;flex-wrap:wrap}.snf-action-buttons{display:flex;justify-content:center;gap:15px;flex-wrap:wrap}.snf-convert-btn,.snf-clear-btn{padding:14px 28px;border:none;border-radius:12px;font-size:18px;cursor:pointer}.snf-convert-btn{background:#0073aa;color:#fff}.snf-clear-btn{background:#5a5a5a;color:#fff}#snf-merge-result{text-align:center;margin-top:20px}@media screen and (max-width:768px){.snf-merge-container{max-width:100%}.snf-tool-title{font-size:34px}.snf-upload-btn,.snf-convert-btn,.snf-clear-btn{width:100%}.snf-action-buttons{flex-direction:column}}#snf-merge-preview{margin-top:30px;margin-bottom:25px}.snf-file-item{margin-bottom:14px}.snf-options{margin-top:30px}