.amp-stage{
  max-width: 760px;
  margin: 14px auto 0;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.amp-stage input[type="file"]{ display: none; }

.upload-box{
  display: flex;
  justify-content: center;
}
.upload-box label{
  width: 100%;
  border-radius: 8px;
  border: 2px dashed #c9cee5;
  cursor: pointer;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  background: #fff;
  transition: border-color 0.15s, background 0.15s;
  padding: 14px 18px;
}
.upload-box label:hover{
  border-style: solid;
  border-color: var(--pcolor);
  background: #f8f9ff;
}
.upload-box .upload-hint{
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  flex: 1;
  text-align: left;
}
.upload-box .xbtn{
  flex-shrink: 0;
}

#waveform ::part(region-handle-left),
#waveform ::part(region-handle-right){
  border-left: 5px solid var(--scolor);
  width: 0;
}
#waveform ::part(region-handle-right){
  border-left: 0;
  border-right: 5px solid var(--scolor);
}
#waveform ::part(region-handle-left)::after,
#waveform ::part(region-handle-right)::after{
  content: "";
  position: absolute;
  top: 50%;
  width: 11px;
  height: 28px;
  background: var(--scolor);
  border-radius: 4px;
  transform: translate(-3px, -50%);
  cursor: ew-resize;
}
#waveform ::part(region-handle-right)::after{
  transform: translate(-8px, -50%);
}
.wavesurfer-region{
  fill: rgba(68, 73, 166, 0.15) !important;
  stroke: rgba(68, 73, 166, 0.5) !important;
  stroke-width: 1px !important;
}

@media screen and (max-width: 500px){
  .upload-box label{ flex-direction: column; gap: 8px; padding: 14px; }
  .upload-box .upload-hint{ text-align: center; flex: 0 0 auto; }
}

.section-title{
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin: 0 0 6px;
}

.audio-card{
  background: #fff;
  border: 1px solid #eef0fa;
  border-radius: 8px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.audio-head{
  display: flex;
  align-items: center;
  gap: 12px;
}
.audio-head .file-name{
  flex: 1;
  font-size: 14px;
  font-weight: 600;
  color: #262626;
  word-break: break-all;
  min-width: 0;
}
.audio-head .file-sub{
  font-size: 12px;
  color: var(--muted);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  white-space: nowrap;
}
.waveform-wrap{
  background: #f8f9ff;
  border-radius: 6px;
  padding: 8px;
  min-height: 100px;
  position: relative;
}
.waveform-loading{
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 13px;
}
.audio-controls{
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}
.audio-controls .play-btn{
  background: var(--pcolor);
  color: #fff;
  border: none;
  padding: 6px 14px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  min-width: 70px;
}
.audio-controls .play-btn:hover{ background: #373c8f; }
.audio-controls .play-btn.playing{ background: #d31b5a; }
.audio-controls .selection-info{
  color: var(--muted);
  font-family: ui-monospace, monospace;
  font-size: 12px;
  flex: 1;
}
.audio-controls .selection-info b{
  color: var(--pcolor);
  font-weight: 600;
}

.remove-btn{
  background: #fff;
  border: 1px solid #e5e7f0;
  color: #b00d44;
  width: 28px;
  height: 28px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.remove-btn:hover{
  background: #fff5f7;
  border-color: #f5c5d3;
}

.slides-card{
  background: #fff;
  border: 1px solid #eef0fa;
  border-radius: 8px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.slides-list{
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.slide-row{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  background: #f8f9ff;
  border-radius: 6px;
}
.slide-num{
  width: 22px;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--pcolor);
  flex-shrink: 0;
}
.slide-thumb{
  width: 56px;
  height: 56px;
  border-radius: 4px;
  object-fit: cover;
  background: #ddd;
  flex-shrink: 0;
}
.slide-info{
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.slide-name{
  font-size: 12px;
  font-weight: 600;
  color: #262626;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.slide-meta{
  font-size: 11px;
  color: var(--muted);
  font-family: ui-monospace, monospace;
}
.slide-duration{
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
  flex-shrink: 0;
}
.slide-duration{
  height: 28px;
  align-items: stretch;
}
.slide-duration input[type="number"]{
  width: 52px;
  height: 28px;
  padding: 0 6px;
  font-size: 13px;
  border: 1px solid #e5e7f0;
  border-radius: 4px;
  text-align: center;
  outline: none;
  font-family: ui-monospace, monospace;
  box-sizing: border-box;
}
.slide-duration input[type="number"]:focus{
  border-color: var(--pcolor);
}
.slide-duration span{
  display: inline-flex;
  align-items: center;
}
.slide-actions{
  display: flex;
  gap: 4px;
  flex-shrink: 0;
  align-items: center;
}
.slide-actions button{
  background: #fff;
  border: 1px solid #e5e7f0;
  color: var(--pcolor);
  width: 28px;
  height: 28px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  font-family: sans-serif;
  box-sizing: border-box;
}
.slide-actions button:hover:not(:disabled){
  border-color: var(--pcolor);
  background: #eef0fa;
}
.slide-actions button:disabled{
  opacity: 0.3;
  cursor: not-allowed;
}
.slide-actions .slide-remove{
  color: #b00d44;
  font-size: 16px;
}
.slide-actions .slide-remove:hover{
  background: #fff5f7;
  border-color: #f5c5d3;
}

.add-more-btn{
  background: #fff;
  border: 1px dashed #c9cee5;
  color: var(--pcolor);
  padding: 9px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
}
.add-more-btn:hover{
  border-style: solid;
  background: #f8f9ff;
}

.duration-summary{
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: #f1f3ff;
  border-radius: 6px;
  font-size: 12px;
  color: var(--muted);
  font-family: ui-monospace, monospace;
  flex-wrap: wrap;
}
.duration-summary .pill{
  background: #fff;
  padding: 2px 8px;
  border-radius: 12px;
  color: var(--pcolor);
  font-weight: 600;
}
.duration-summary .warn{
  color: #b00d44;
  font-family: inherit;
  font-size: 11px;
  flex-basis: 100%;
}
.duration-summary .info{
  color: var(--muted);
  font-family: inherit;
  font-size: 11px;
  flex-basis: 100%;
}

.format-row{
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  border: 1px solid #eef0fa;
  border-radius: 8px;
  padding: 12px 14px;
}
.format-row .vol-label{
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  min-width: 110px;
}
.format-row select{
  flex: 1;
  padding: 8px 12px;
  font-size: 13px;
  border: 1px solid #e5e7f0;
  border-radius: 4px;
  background: #fff;
  outline: none;
  cursor: pointer;
}
.style-toggle{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #262626;
  cursor: pointer;
  flex: 1;
}
.style-toggle input[type="checkbox"]{
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--pcolor);
  margin: 0;
}

.process-btn{
  background: linear-gradient(135deg, #4449a6, #373c8f);
  color: #fff;
  border: none;
  padding: 14px 26px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  display: block;
  width: 100%;
  box-shadow: 0 6px 18px rgba(68, 73, 166, 0.30);
  transition: transform 0.15s, box-shadow 0.15s;
}
.process-btn:hover:not(:disabled){
  transform: translateY(-1px);
  box-shadow: 0 10px 26px rgba(68, 73, 166, 0.42);
}
.process-btn:disabled{
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.processing{
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px;
  background: #fff;
  border-radius: 8px;
  border: 1px solid #eef0fa;
  color: var(--pcolor);
  font-size: 14px;
}
.proc-spin{
  width: 22px;
  height: 22px;
  border: 3px solid var(--pcolor);
  border-top-color: rgba(255,255,255,0.3);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin{ to { transform: rotate(360deg); } }
.cancel-btn{
  margin-left: auto;
  background: #fff;
  border: 1px solid #f5c5d3;
  color: #b00d44;
  padding: 6px 14px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.cancel-btn:hover{
  background: #fff5f7;
  border-color: #b00d44;
}
.cancel-btn:disabled{
  opacity: 0.4;
  cursor: not-allowed;
}

.result-card{
  background: #fff;
  border: 1px solid #eef0fa;
  border-radius: 8px;
  padding: 14px;
  position: relative;
  overflow: hidden;
}
.result-card::before{
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #4449a6, #d31b5a);
}
.result-card video{
  width: 100%;
  max-height: 360px;
  border-radius: 4px;
  background: #000;
  margin-bottom: 12px;
}
.result-actions{
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.result-actions a, .result-actions button{
  flex: 1 1 130px;
  padding: 10px 16px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: none;
}
.result-actions .download-btn{
  background: var(--pcolor);
  color: #fff;
}
.result-actions .download-btn:hover{ background: #373c8f; }
.result-actions .ctrl-btn{
  background: #fff;
  color: var(--pcolor);
  border: 1px solid #e5e7f0;
}
.result-actions .ctrl-btn:hover{ border-color: var(--pcolor); }

@media screen and (max-width: 600px){
  .slide-row{ flex-wrap: wrap; }
  .slide-info{ flex-basis: 100%; order: 99; }
  .slide-thumb{ width: 48px; height: 48px; }
  .format-row{ flex-wrap: wrap; }
  .format-row .vol-label{ flex-basis: 100%; min-width: 0; }
}

.illus{
  margin: 24px 0 36px;
  display: flex;
  justify-content: center;
}
.illus img{
  max-width: 100%;
  height: auto;
  border-radius: 16px;
  box-shadow: 0 14px 40px rgba(68, 73, 166, 0.14);
}

.articlesec table{
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 14px;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(68, 73, 166, 0.06);
}
.articlesec thead{
  background: var(--pcolor);
  color: #fff;
}
.articlesec th{
  text-align: left;
  padding: 12px 14px;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.2px;
}
.articlesec td{
  padding: 11px 14px;
  border-top: 1px solid #eef0fa;
  color: #262626;
  vertical-align: top;
}
.articlesec tbody tr:nth-child(even){
  background: #f8f9ff;
}
@media screen and (max-width: 600px){
  .articlesec table{ font-size: 13px; }
  .articlesec th, .articlesec td{ padding: 9px 10px; }
}