/*
 * 样式说明：复用各语言原有的 Banner 栈位置和卡片尺寸；仅用细线与 SVG 小把手提示收起状态。
 */
#banner-stack > .workflow-peekable-banner {
  --wf-peek-width: 20px;
  --wf-peek-color: #4db8b0;
  position: relative;
  padding-left: 26px;
  overflow: hidden;
}

#banner-stack > #chapter-done-banner { --wf-peek-color: #34d399; }
#banner-stack > #workflow-review-banner { --wf-peek-color: #2dd4bf; }
#banner-stack > #workflow-polish-banner,
#banner-stack > #pro-polish-banner { --wf-peek-color: #fbbf24; }

#banner-stack .workflow-banner-peek-handle {
  position: absolute;
  inset: 0 auto 0 0;
  z-index: 1;
  width: var(--wf-peek-width);
  height: 100%;
  border: 0;
  border-radius: 9px 0 0 9px;
  padding: 0;
  background: linear-gradient(to right, var(--wf-peek-color) 0 3px, transparent 3px);
  pointer-events: auto;
  cursor: pointer;
  touch-action: pan-y;
}

/* 细线承担状态颜色，小把手与箭头只占卡片高度中央，点击区域仍覆盖整高。 */
#banner-stack .workflow-banner-peek-handle::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 3px;
  width: calc(var(--wf-peek-width) - 3px);
  height: 34px;
  box-sizing: border-box;
  transform: translateY(-50%);
  border: 1px solid var(--wf-peek-color);
  border-left: 0;
  border-radius: 0 8px 8px 0;
  background: var(--surface2, #16162a);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.28);
}

#banner-stack .workflow-banner-peek-handle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 12px;
  transform: translate(-50%, -50%);
  background: var(--wf-peek-color);
  -webkit-mask: url("/res/writeflow_svg/icons/navigation/navigation-chevron-right.svg") center / contain no-repeat;
  mask: url("/res/writeflow_svg/icons/navigation/navigation-chevron-right.svg") center / contain no-repeat;
  transition: transform 0.2s ease;
}

#banner-stack > .is-peeked .workflow-banner-peek-handle::after {
  transform: translate(-50%, -50%) rotate(180deg);
}

#banner-stack .workflow-banner-peek-handle:hover::before {
  background: var(--surface, #202030);
}

#banner-stack .workflow-banner-peek-handle:focus-visible {
  outline: none;
}

#banner-stack .workflow-banner-peek-handle:focus-visible::before {
  outline: 2px solid var(--wf-peek-color);
  outline-offset: 1px;
}

#banner-stack > .workflow-peekable-banner.wf-visible.is-peeked {
  transform: translateX(calc(100% - var(--wf-peek-width))) !important;
  opacity: 1;
}

#banner-stack > .workflow-peekable-banner.wf-visible.is-dragging {
  transform: translateX(var(--wf-peek-drag, 0px)) !important;
  transition: none;
}

@media (max-width: 640px) {
  #banner-stack {
    right: 12px;
    bottom: 72px;
    width: calc(100vw - 24px);
  }

  #banner-stack > .workflow-peekable-banner {
    --wf-peek-width: 24px;
    padding-left: 30px;
  }

  #banner-stack .workflow-banner-peek-handle::before {
    height: 40px;
  }
}