/* Skill 获客页版面 (/skills、/skills/<routeKey>)。
   设计值全部取 PM Token (src/lib/tokens.css 的基础色与 --skill-landing-*), 页面链接的应用样式先于本文件加载。
   首屏生成区 (.skl-bench) 的占位由构建期写进 HTML, 水合后由 SkillLandingWorkbench.vue 以同一套 class 接管。 */
.skl-body {
  margin: 0;
  background: var(--bg-main);
  color: var(--fg);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}
.skl-page {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--skill-landing-max-width) + var(--skill-landing-gutter) * 2);
  margin-inline: auto;
  padding: var(--skill-landing-gap-lg) var(--skill-landing-gutter) var(--skill-landing-section-gap);
  font-size: var(--skill-landing-body);
  line-height: var(--skill-landing-line);
}
.skl-page *, .skl-page *::before, .skl-page *::after { box-sizing: border-box; }
.skl-page h1, .skl-page h2, .skl-page h3, .skl-page p, .skl-page figure, .skl-page ol, .skl-page ul { margin: 0; }
.skl-page ol, .skl-page ul { padding: 0; list-style: none; }
.skl-page a { color: inherit; text-decoration: none; }
.skl-page img, .skl-page video { display: block; max-width: 100%; }
.skl-page :focus-visible { outline: var(--focus-ring-width) solid var(--border-focus); outline-offset: var(--focus-ring-offset); }

.skl-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: var(--skill-landing-gap-sm);
  color: var(--fg-subtle);
  font-size: var(--text-sm);
}
.skl-breadcrumb a:hover { color: var(--fg); }
.skl-breadcrumb [aria-current] { color: var(--fg-muted); }
.skl-byline { margin-top: var(--skill-landing-gap-xs); color: var(--fg-subtle); font-size: var(--text-xs); }

.skl-eyebrow {
  color: var(--fg-subtle);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--skill-landing-eyebrow-tracking);
  text-transform: uppercase;
}
.skl-page h1, .skl-page h2 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--skill-landing-heading-line);
  letter-spacing: var(--skill-landing-heading-tracking);
  text-wrap: balance;
}
.skl-page h1 { font-size: var(--skill-landing-h1); }
.skl-page h2 { font-size: var(--skill-landing-h2); }
.skl-page h3 { font-size: var(--skill-landing-h3); font-weight: var(--font-weight-semibold); line-height: var(--skill-landing-heading-line); }

/* 首屏: 文案 + 生成区 */
.skl-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  align-items: stretch;
  gap: var(--skill-landing-gap-xl);
  padding-top: var(--skill-landing-gap-xl);
}
.skl-hero-copy { display: flex; flex-direction: column; gap: var(--skill-landing-gap-md); max-width: var(--skill-landing-text-max); }

.skl-hero-drop {
  /* 撑满左列剩余高度, 底边与右侧主图底边对齐 */
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--skill-landing-gap-md);
  min-height: var(--skill-landing-drop-height-compact);
  margin-top: var(--skill-landing-gap-sm);
  text-align: center;
  padding: var(--skill-landing-gap-lg);
  border: var(--skill-landing-drop-border) dashed var(--border-strong);
  border-radius: var(--radius-xl);
  background: var(--bg-subtle);
  cursor: pointer;
  transition: background-color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.skl-hero-drop:hover, .skl-hero-drop.is-dragover { border-color: var(--accent); background: var(--accent-soft); }
.skl-hero-drop:hover .skl-hero-drop-icon, .skl-hero-drop.is-dragover .skl-hero-drop-icon { color: var(--accent); }
.skl-hero-drop:focus-within { outline: var(--focus-ring-width) solid var(--border-focus); outline-offset: var(--focus-ring-offset); }
.skl-hero-drop-icon {
  display: grid;
  flex: none;
  place-items: center;
  width: var(--skill-landing-drop-icon);
  height: var(--skill-landing-drop-icon);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  color: var(--fg-muted);
}
.skl-hero-drop-icon svg { width: 50%; height: 50%; }
.skl-hero-drop-text { display: grid; gap: var(--skill-landing-gap-xs); }
.skl-hero-drop-title { font-size: var(--text-sm); font-weight: var(--font-weight-semibold); }
.skl-hero-drop-hint { color: var(--fg-subtle); font-size: var(--text-xs); }
.skl-hero-actions { display: flex; flex-wrap: wrap; gap: var(--skill-landing-gap-sm); padding-top: var(--skill-landing-gap-sm); }
.skl-hero-visual { position: relative; min-height: var(--skill-landing-hero-visual-min); border-radius: var(--radius-2xl); overflow: hidden; background: var(--bg-subtle); box-shadow: var(--shadow-md); }
/* 主图铺满整列高度 (object-fit: cover), 与左侧文案列底边对齐 */
.skl-hero-visual > img, .skl-hero-visual .skl-zoom { position: absolute; inset: 0; width: 100%; height: 100%; }
.skl-hero-visual img, .skl-hero-visual .skl-zoom img { width: 100%; height: 100%; object-fit: cover; }

/* 按钮 */
.skl-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--skill-landing-btn-height);
  padding: 0 var(--skill-landing-gap-lg);
  border: var(--border-width-thin) solid transparent;
  border-radius: var(--radius-pill);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: background-color var(--dur-fast) var(--ease-out);
}
/* 悬停一律只变底色 / 边框 / 阴影, 不位移 */
.skl-page .skl-btn--primary { background: var(--fg); color: var(--fg-inverse); }
.skl-page .skl-btn--primary:hover { background: var(--skill-landing-btn-primary-hover-bg); }
.skl-btn--ghost { border-color: var(--border-strong); background: var(--bg-surface); color: var(--fg); }
.skl-btn--ghost:hover { background: var(--bg-subtle); }

/* 上传按钮 (各环节末尾与底部 CTA): 品牌色药丸 + 云朵上传图标, 也接受拖入 */
.skl-section-cta { display: flex; justify-content: center; padding-top: var(--skill-landing-gap-sm); }
.skl-upload-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--skill-landing-gap-sm);
  height: var(--skill-landing-btn-height);
  padding: 0 var(--skill-landing-gap-lg);
  border-radius: var(--radius-pill);
  background: var(--accent);
  color: var(--skill-landing-upload-fg);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  box-shadow: var(--shadow-xs);
  cursor: pointer;
  transition: background-color var(--dur-fast) var(--ease-out);
}
.skl-upload-btn svg { width: var(--skill-landing-upload-icon); height: var(--skill-landing-upload-icon); }
.skl-upload-btn:hover { background: var(--skill-landing-upload-hover-bg); }
.skl-upload-btn:focus-within, .skl-upload-btn.is-dragover { outline: var(--focus-ring-width) solid var(--border-focus); outline-offset: var(--focus-ring-offset); }

/* 可放大的图 + 前后标签 */
.skl-zoom { position: relative; display: block; width: 100%; padding: 0; border: 0; background: none; cursor: zoom-in; }
.skl-zoom img { width: 100%; height: auto; }
.skl-tag {
  position: absolute;
  top: var(--skill-landing-gap-md);
  padding: var(--skill-landing-gap-xs) var(--skill-landing-gap-sm);
  border-radius: var(--radius-pill);
  background: var(--bg-elevated);
  color: var(--fg);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  box-shadow: var(--shadow-xs);
}
.skl-tag--before { left: var(--skill-landing-gap-md); }
.skl-tag--after { right: var(--skill-landing-gap-md); }
/* 案例卡片一排 4 张, 标签用更小的一档, 不压画面 */
.skl-case-media .skl-tag { top: var(--skill-landing-case-tag-offset); padding: var(--skill-landing-case-tag-pad-y) var(--skill-landing-case-tag-pad-x); font-size: var(--skill-landing-case-tag-font-size); }
.skl-case-media .skl-tag--before { left: var(--skill-landing-case-tag-offset); }
.skl-case-media .skl-tag--after { right: var(--skill-landing-case-tag-offset); }

/* 内嵌生成区 */
.skl-section-intro { display: grid; gap: var(--skill-landing-gap-sm); max-width: var(--skill-landing-text-max); }
/* 「立即试用」直接滚到生成区本身, 顶部让出固定顶栏 */
.skl-workbench { scroll-margin-top: calc(var(--skill-landing-header-height) + var(--skill-landing-gap-md)); }
.skl-lead { color: var(--fg-muted); font-size: var(--skill-landing-lead); }
.skl-intro { color: var(--fg-muted); font-size: var(--skill-landing-body); }
.skl-note { color: var(--fg-subtle); font-size: var(--text-sm); }

/* 生成区高度由表单内容决定, 整体不超过一屏 (矮屏上表单在卡片内滚动, 生成按钮固定在底部);
   右侧示例区与表单同高, 宽高比随屏幕在约 1.1:1–1.3:1 之间 */
.skl-bench {
  display: grid;
  grid-template-columns: var(--skill-landing-form-width) minmax(0, 1fr);
  gap: var(--skill-landing-gap-lg);
}
.skl-bench-form, .skl-bench-output {
  min-width: 0;
  border: var(--border-width-thin) solid var(--border);
  border-radius: var(--radius-2xl);
  background: var(--bg-surface);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.skl-bench-form {
  display: flex;
  flex-direction: column;
  min-height: 0;
  max-height: min(var(--skill-landing-bench-max), calc(var(--skill-landing-viewport) - var(--skill-landing-header-height) - var(--skill-landing-gap-xl)));
}

.skl-bench-output { position: relative; display: flex; flex-direction: column; min-height: var(--skill-landing-bench-min); }

.skl-bench-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--skill-landing-gap-md);
  padding: var(--skill-landing-gap-lg);
  color: var(--fg-muted);
  font-size: var(--text-sm);
  text-align: center;
}
.skl-example { position: relative; flex: 1; display: flex; }
.skl-example img { width: 100%; height: 100%; object-fit: cover; }
/* 拖动对比 (SDK BeforeAfterCompare): 铺满示例区, 两张图等比完整显示 */
.skl-compare { position: relative; flex: 1; min-width: 0; background: var(--bg-subtle); }
.skl-bench .skl-compare .compare-card { height: 100%; aspect-ratio: auto; border-radius: 0; box-shadow: none; background: var(--bg-subtle); }
.skl-compare-static { position: absolute; inset: 0; }
.skl-compare-static img { position: absolute; inset: 0; object-fit: cover; }
.skl-compare-static .skl-compare-static-after { clip-path: inset(0 0 0 50%); }
.skl-example figcaption {
  position: absolute;
  left: var(--skill-landing-gap-md);
  bottom: var(--skill-landing-gap-md);
  padding: var(--skill-landing-gap-xs) var(--skill-landing-gap-sm);
  border-radius: var(--radius-pill);
  background: var(--bg-elevated);
  color: var(--fg-muted);
  font-size: var(--text-xs);
  box-shadow: var(--shadow-xs);
}

.skl-results { display: flex; flex-direction: column; gap: var(--skill-landing-gap-md); height: 100%; padding: var(--skill-landing-gap-lg); overflow: auto; }
.skl-results-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: var(--skill-landing-gap-sm); }
.skl-page .skl-results-title { font-size: var(--skill-landing-h3); letter-spacing: normal; }
.skl-results-link { color: var(--fg-muted); font-size: var(--text-sm); text-decoration: underline; text-underline-offset: var(--skill-landing-gap-xs); }
.skl-results-link:hover { color: var(--fg); }
.skl-results-list { display: grid; gap: var(--skill-landing-gap-md); }
.skl-result-pending, .skl-result-failed {
  display: flex;
  align-items: center;
  gap: var(--skill-landing-gap-sm);
  min-height: var(--skill-landing-result-min);
  padding: var(--skill-landing-gap-lg);
  border-radius: var(--radius-xl);
  background: var(--bg-subtle);
  color: var(--fg-muted);
  font-size: var(--text-sm);
}
.skl-result-pending { justify-content: center; }
.skl-result-failed { justify-content: space-between; color: var(--fg); }
.skl-result-dismiss {
  flex-shrink: 0;
  padding: 0;
  border: 0;
  background: none;
  color: var(--fg-muted);
  font: inherit;
  text-decoration: underline;
  cursor: pointer;
}
.skl-spinner {
  width: var(--skill-landing-spinner);
  height: var(--skill-landing-spinner);
  border: var(--skill-landing-spinner-width) solid var(--border);
  border-top-color: var(--fg-muted);
  border-radius: var(--radius-pill);
  animation: skl-spin var(--dur-slow) var(--skill-landing-spinner-easing) infinite;
}
@keyframes skl-spin { to { transform: var(--skill-landing-spinner-rotate); } }
.skl-result-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(var(--skill-landing-result-min), 1fr)); gap: var(--skill-landing-gap-sm); }
.skl-result-media {
  padding: 0;
  border: 0;
  border-radius: var(--radius-lg);
  background: var(--bg-subtle);
  overflow: hidden;
  cursor: zoom-in;
}
.skl-result-media img, .skl-result-media video { width: 100%; height: auto; }

/* 正文分节 */
.skl-section { display: grid; gap: var(--skill-landing-gap-lg); padding-top: var(--skill-landing-section-gap); }
.skl-section-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: var(--skill-landing-gap-md); }
.skl-section-link { color: var(--fg-muted); font-size: var(--text-sm); }
.skl-section-link:hover { color: var(--fg); }

.skl-steps-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--skill-landing-gap-lg); counter-reset: skl-step; }
.skl-step {
  display: grid;
  align-content: start;
  gap: var(--skill-landing-gap-sm);
  padding: var(--skill-landing-gap-lg);
  border: var(--border-width-thin) solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--bg-surface);
}
.skl-step::before {
  counter-increment: skl-step;
  content: counter(skl-step);
  display: grid;
  place-items: center;
  width: var(--skill-landing-step-index);
  height: var(--skill-landing-step-index);
  margin-bottom: var(--skill-landing-gap-sm);
  border-radius: var(--radius-pill);
  background: var(--bg-muted);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
}
.skl-step p { color: var(--fg-muted); font-size: var(--text-sm); }

.skl-faq-head { display: grid; justify-items: center; gap: var(--skill-landing-gap-md); text-align: center; }
.skl-faq-tag {
  padding: var(--skill-landing-gap-xs) var(--skill-landing-gap-md);
  border-radius: var(--radius-pill);
  background: var(--bg-subtle);
  color: var(--fg-muted);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--skill-landing-eyebrow-tracking);
}
.skl-faq-list { display: grid; gap: var(--skill-landing-gap-sm); }
.skl-faq-item {
  border: var(--border-width-thin) solid var(--border);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transition: background-color var(--dur-med) var(--ease-out);
}
.skl-faq-item[open] { background: var(--bg-subtle); }
.skl-faq-q {
  display: flex;
  align-items: center;
  gap: var(--skill-landing-gap-sm);
  padding: var(--skill-landing-faq-pad-y) var(--skill-landing-faq-pad-x);
  font-size: var(--skill-landing-h3);
  font-weight: var(--font-weight-semibold);
  list-style: none;
  cursor: pointer;
  transition: background-color var(--dur-fast) var(--ease-out);
}
.skl-faq-q::-webkit-details-marker { display: none; }
.skl-faq-item:not([open]) .skl-faq-q:hover { background: var(--bg-subtle); }
.skl-faq-num { flex: none; margin-right: var(--skill-landing-gap-xs); color: var(--fg-subtle); font-size: var(--text-sm); font-variant-numeric: tabular-nums; }
.skl-faq-text { flex: 1; min-width: 0; line-height: var(--skill-landing-heading-line); }
.skl-faq-toggle {
  position: relative;
  display: grid;
  flex: none;
  place-items: center;
  width: var(--skill-landing-faq-toggle);
  height: var(--skill-landing-faq-toggle);
  border-radius: var(--radius-pill);
  background: var(--bg-muted);
  color: var(--fg);
  transition: background-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), transform var(--dur-med) var(--ease-out);
}
.skl-faq-bar { position: absolute; border-radius: var(--radius-pill); background: currentColor; transition: opacity var(--dur-fast) var(--ease-out); }
.skl-faq-bar--h { width: var(--skill-landing-faq-bar); height: var(--skill-landing-faq-bar-weight); }
.skl-faq-bar--v { width: var(--skill-landing-faq-bar-weight); height: var(--skill-landing-faq-bar); }
/* 展开: 圆盘反色并转 90°, 横杠淡出, 竖杠被转成横杠 —— 加号平滑变减号 */
.skl-faq-item[open] .skl-faq-toggle { background: var(--fg); color: var(--fg-inverse); transform: var(--skill-landing-faq-rotate); }
.skl-faq-item[open] .skl-faq-bar--h { opacity: 0; }
.skl-faq-a { padding: 0 var(--skill-landing-faq-pad-x) var(--skill-landing-faq-pad-y); color: var(--fg-muted); font-size: var(--text-sm); line-height: var(--skill-landing-line); }

/* 相关指南 */
.skl-resource-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(var(--skill-landing-case-min), 1fr)); gap: var(--skill-landing-gap-lg); }
.skl-resource {
  display: grid;
  gap: var(--skill-landing-gap-xs);
  padding: var(--skill-landing-gap-lg);
  border: var(--border-width-thin) solid var(--border);
  border-radius: var(--radius-xl);
  transition: border-color var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-out);
}
.skl-resource:hover { border-color: var(--border-strong); background: var(--bg-subtle); }
.skl-resource-title { font-weight: var(--font-weight-semibold); }
.skl-resource-desc { color: var(--fg-muted); font-size: var(--text-sm); }


/* 获客页生成表单 (LandingSkillForm.vue 与构建期静态 HTML 共用) */
.skl-form {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--skill-landing-form-gap);
  min-height: 0;
  padding: var(--skill-landing-form-pad-top) var(--skill-landing-gap-lg) 0;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.skl-form-field { display: grid; gap: var(--skill-landing-gap-sm); }
/* 描述框撑满「生成」按钮上方的剩余高度, 不留空白; 空间不足时保持最小高度 */
.skl-form-field[data-kind="prompt"] { flex: 1 0 auto; display: flex; flex-direction: column; }
.skl-form-label { display: flex; align-items: baseline; justify-content: space-between; gap: var(--skill-landing-gap-sm); font-size: var(--text-sm); font-weight: var(--font-weight-semibold); }
.skl-form-optional { color: var(--fg-subtle); font-size: var(--text-xs); font-weight: normal; }

.skl-drop {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--skill-landing-gap-sm);
  min-height: var(--skill-landing-drop-height);
  padding: var(--skill-landing-gap-lg);
  border: var(--skill-landing-drop-border) dashed var(--border-strong);
  border-radius: var(--radius-xl);
  background: var(--bg-subtle);
  color: var(--fg);
  text-align: center;
  cursor: pointer;
  overflow: hidden;
  transition: background-color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
/* 悬停 / 拖入时用品牌色提示可放置; 已有图片时保持原样 */
.skl-drop:not(.is-filled):hover, .skl-drop.is-dragover { border-color: var(--accent); background: var(--accent-soft); }
.skl-drop:not(.is-filled):hover .skl-drop-icon, .skl-drop.is-dragover .skl-drop-icon { color: var(--accent); }
.skl-drop:focus-within { outline: var(--focus-ring-width) solid var(--border-focus); outline-offset: var(--focus-ring-offset); }
.skl-drop--compact { min-height: var(--skill-landing-drop-height-compact); padding: var(--skill-landing-gap-md); }
.skl-drop.is-filled { height: var(--skill-landing-drop-height); padding: 0; border-style: solid; border-color: var(--border); }
.skl-drop--compact.is-filled { height: var(--skill-landing-drop-height-compact); }
.skl-drop-input { position: absolute; width: var(--border-width-thin); height: var(--border-width-thin); opacity: 0; pointer-events: none; }
.skl-drop-icon {
  display: grid;
  place-items: center;
  width: var(--skill-landing-drop-icon);
  height: var(--skill-landing-drop-icon);
  border-radius: var(--radius-lg);
  background: var(--bg-muted);
  color: var(--fg-muted);
}
.skl-drop-icon svg { width: 50%; height: 50%; }
.skl-drop--compact .skl-drop-icon { width: var(--skill-landing-drop-icon-compact); height: var(--skill-landing-drop-icon-compact); }
.skl-drop-title { max-width: var(--skill-landing-drop-title-max); font-size: var(--text-sm); font-weight: var(--font-weight-semibold); }
.skl-drop--compact .skl-drop-title { font-weight: normal; color: var(--fg-muted); }
.skl-drop-hint { color: var(--fg-subtle); font-size: var(--text-xs); }
.skl-drop-preview { width: 100%; height: 100%; object-fit: contain; }
.skl-drop-remove {
  position: absolute;
  top: var(--skill-landing-gap-sm);
  right: var(--skill-landing-gap-sm);
  display: grid;
  place-items: center;
  width: var(--skill-landing-icon-button);
  height: var(--skill-landing-icon-button);
  padding: 0;
  border: 0;
  border-radius: var(--radius-pill);
  background: var(--bg-elevated);
  color: var(--fg);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
}
.skl-drop-remove svg { width: 50%; height: 50%; }
.skl-drop-busy {
  position: absolute;
  inset: 50% auto auto 50%;
  display: grid;
  place-items: center;
  padding: var(--skill-landing-gap-sm);
  border-radius: var(--radius-pill);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-sm);
  transform: translate(var(--skill-landing-center-shift), var(--skill-landing-center-shift));
}

/* 示例: 说明文字在上, 缩略图一行排在下面 */
.skl-examples { display: grid; gap: var(--skill-landing-gap-xs); }
.skl-examples-label { color: var(--fg-muted); font-size: var(--text-xs); }
.skl-examples-list { display: flex; flex-wrap: wrap; gap: var(--skill-landing-gap-sm); }
.skl-examples-item {
  width: var(--skill-landing-example-thumb);
  aspect-ratio: var(--skill-landing-media-ratio);
  padding: 0;
  border: var(--border-width-thin) solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-subtle);
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out);
}
.skl-examples-item:hover { border-color: var(--fg-subtle); }
.skl-examples-item img { width: 100%; height: 100%; object-fit: cover; }
/* 示例悬停预览 (挂在 body 上, fixed 定位由脚本算好): 大图 + 说明, 不拦截指针 */
.skl-example-preview {
  position: fixed;
  z-index: var(--skill-landing-example-preview-z);
  margin: 0;
  padding: var(--skill-landing-gap-xs);
  border: var(--border-width-thin) solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  box-shadow: var(--shadow-lg);
  pointer-events: none;
}
.skl-example-preview--above { transform: translateY(var(--skill-landing-center-shift-full)); }
.skl-example-preview img { display: block; width: 100%; height: auto; border-radius: var(--radius-md); background: var(--bg-subtle); }
.skl-example-preview figcaption { padding: var(--skill-landing-gap-xs) var(--skill-landing-gap-xs) 0; color: var(--fg-muted); font-size: var(--text-xs); text-align: center; }

.skl-options { display: flex; flex-wrap: wrap; gap: var(--skill-landing-gap-sm); }
.skl-option {
  display: inline-flex;
  align-items: center;
  height: var(--btn-h-sm);
  padding: 0 var(--skill-landing-gap-md);
  border: var(--border-width-thin) solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--bg-surface);
  color: var(--fg-muted);
  font: inherit;
  font-size: var(--text-sm);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.skl-option:hover { border-color: var(--border-strong); color: var(--fg); }
.skl-option.is-selected { border-color: var(--fg); color: var(--fg); box-shadow: inset 0 0 0 var(--border-width-thin) var(--fg); }
.skl-options--media { display: grid; grid-template-columns: repeat(var(--skill-landing-option-columns), minmax(0, 1fr)); }
.skl-options--media .skl-option {
  flex-direction: column;
  align-items: stretch;
  gap: var(--skill-landing-gap-xs);
  height: auto;
  padding: var(--skill-landing-gap-xs);
  border-radius: var(--radius-lg);
  text-align: left;
}
.skl-option-media { width: 100%; height: auto; aspect-ratio: var(--skill-landing-option-ratio); border-radius: var(--radius-md); object-fit: cover; background: var(--bg-subtle); }
.skl-options--media .skl-option-label {
  display: -webkit-box;
  min-height: calc(var(--skill-landing-option-label-lines) * var(--skill-landing-heading-line) * var(--text-xs));
  padding: 0 var(--skill-landing-gap-xs) var(--skill-landing-gap-xs);
  overflow: hidden;
  font-size: var(--text-xs);
  line-height: var(--skill-landing-heading-line);
  text-align: center;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: var(--skill-landing-option-label-lines);
}
.skl-form-more { justify-self: start; padding: 0; border: 0; background: none; color: var(--fg-muted); font: inherit; font-size: var(--text-sm); text-decoration: underline; text-underline-offset: var(--skill-landing-gap-xs); cursor: pointer; }
.skl-form-textarea {
  width: 100%;
  flex: 1 0 auto;
  min-height: var(--skill-landing-textarea-height);
  padding: var(--skill-landing-gap-sm) var(--skill-landing-gap-md);
  border: var(--border-width-thin) solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  color: var(--fg);
  font: inherit;
  font-size: var(--text-sm);
  resize: none;
}
.skl-form-textarea:focus { border-color: var(--border-focus); outline: none; box-shadow: 0 0 0 var(--focus-ring-width) var(--accent-ring); }
.skl-form-error { color: var(--error); font-size: var(--text-xs); }
/* 生成按钮钉在卡片底部, 表单内容滚动时也始终可点 */
.skl-form-footer {
  position: sticky;
  bottom: 0;
  display: grid;
  gap: var(--skill-landing-gap-xs);
  margin-top: auto;
  padding: var(--skill-landing-form-footer-pad-top) 0 var(--skill-landing-form-footer-pad-bottom);
  background: var(--bg-surface);
}
.skl-page .skl-form-submit { width: 100%; gap: var(--skill-landing-gap-xs); }
.skl-form-credits { font-weight: normal; }
.skl-spinner--inverse { border-color: var(--fg-muted); border-top-color: var(--fg-inverse); }

/* 材质表单 (LandingMaterialForm.vue 与构建期静态 HTML 共用): 场景图标注状态、按序号排列的材质图 */
.skl-material-status { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: var(--skill-landing-gap-sm); color: var(--fg-muted); font-size: var(--text-sm); }
.skl-material-hint { color: var(--fg-subtle); font-size: var(--text-xs); }
.skl-material-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(var(--skill-landing-material-slot), 1fr)); gap: var(--skill-landing-gap-sm); }
.skl-material-list .skl-drop, .skl-material-list .skl-drop.is-filled { height: auto; min-height: 0; aspect-ratio: var(--skill-landing-option-ratio); padding: var(--skill-landing-gap-sm); }
.skl-material-list .skl-drop.is-filled { padding: 0; }
.skl-material-list .skl-drop-preview { object-fit: cover; }
.skl-material-badge {
  position: absolute;
  top: var(--skill-landing-gap-xs);
  left: var(--skill-landing-gap-xs);
  display: inline-flex;
  align-items: center;
  gap: var(--skill-landing-gap-xs);
  padding: 0 var(--skill-landing-gap-sm) 0 var(--skill-landing-gap-xs);
  border-radius: var(--radius-pill);
  background: var(--bg-elevated);
  color: var(--fg);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  box-shadow: var(--shadow-xs);
}
.skl-material-badge i { width: var(--skill-landing-material-dot); height: var(--skill-landing-material-dot); border-radius: var(--radius-pill); }

/* 标注区 (LandingMaterialMarker.vue): 桌面端盖住生成区右侧, 手机端全屏 */
.skl-marker-host { position: absolute; inset: 0; z-index: var(--skill-landing-marker-z); display: flex; background: var(--bg-surface); }
.skl-marker { flex: 1; display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.skl-marker-toolbar { display: flex; justify-content: center; padding: 0 var(--skill-landing-gap-md) var(--skill-landing-gap-md); }
.skl-marker-stage {
  position: relative;
  flex: 1;
  display: grid;
  place-items: center;
  min-height: 0;
  margin: var(--skill-landing-gap-md);
  border-radius: var(--radius-lg);
  background: var(--bg-subtle);
  overflow: hidden;
  touch-action: none;
}
.skl-marker-image, .skl-marker-canvas { position: absolute; max-width: none; }
.skl-marker-image { pointer-events: none; user-select: none; }
.skl-marker-canvas { cursor: crosshair; touch-action: none; }
.skl-marker-canvas.is-mark { cursor: copy; }
/* 跟随光标的操作提示: 品牌色底白字, 不挡指针 */
.skl-marker-tip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: var(--skill-landing-gap-xs);
  padding: var(--skill-landing-gap-sm) var(--skill-landing-gap-md);
  border-radius: var(--radius-md);
  background: var(--accent);
  color: var(--skill-landing-upload-fg);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  white-space: nowrap;
  box-shadow: var(--shadow-md);
  pointer-events: none;
}
.skl-marker-tip-key {
  padding: 0 var(--skill-landing-gap-sm);
  border: var(--border-width-thin) solid currentColor;
  border-radius: var(--radius-pill);
  font: inherit;
}
.skl-marker-failed { display: grid; justify-items: center; gap: var(--skill-landing-gap-sm); padding: var(--skill-landing-gap-lg); color: var(--fg-muted); font-size: var(--text-sm); text-align: center; }
.skl-marker-hint { padding: var(--skill-landing-gap-md) var(--skill-landing-gap-md) 0; color: var(--fg-muted); font-size: var(--text-xs); text-align: center; }
/* 窄屏放不下一行工具栏: 允许换行 (完成 / 取消落到第二行), 不用横向滚动, 否则弹层会被滚动容器裁掉 */
@media (max-width: 560px) {
  .skl-marker .material-replacement-toolbar { flex-wrap: wrap; justify-content: center; height: auto; max-width: 100%; }
  /* 竖分隔线按工具栏高度拉伸, 换行后会把行撑高, 窄屏去掉 */
  .skl-marker .material-replacement-toolbar > .line { display: none; }
}

/* 步骤截图 */
.skl-steps-list--media { grid-template-columns: repeat(auto-fit, minmax(var(--skill-landing-card-min), 1fr)); }
.skl-step-media { margin-bottom: var(--skill-landing-gap-sm); border-radius: var(--radius-lg); background: var(--bg-subtle); overflow: hidden; }
.skl-step-media img { aspect-ratio: var(--skill-landing-step-media-ratio); object-fit: contain; }
.skl-steps-list--media .skl-step::before { display: none; }

/* 前后对比案例 */
/* 案例一排 4 组, 中等宽度 2 组, 窄屏 1 组 */
.skl-case-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--skill-landing-gap-lg); }
@media (max-width: 1100px) { .skl-case-list { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .skl-case-list { grid-template-columns: minmax(0, 1fr); } }
.skl-case { display: grid; align-content: start; gap: var(--skill-landing-gap-md); }
/* 案例图统一 4:3: 单张左右合成图直接铺满; 原图 + 结果图两张时为左右分屏 (见下方 .skl-split) */
.skl-case-media { position: relative; aspect-ratio: var(--skill-landing-case-ratio); border-radius: var(--radius-xl); background: var(--bg-subtle); overflow: hidden; }
.skl-case-media .skl-zoom { position: absolute; inset: 0; height: 100%; }
.skl-case-media .skl-zoom img { width: 100%; height: 100%; object-fit: cover; }
/* 原图 / 结果图分屏 (首屏与案例共用): 两个图按钮叠放铺满容器, 结果图按 --skl-split-pos 裁出右侧;
   中线可拖动对比, 与生成区拖动对比同一观感; 点哪侧放大哪张 */
.skl-split { --skl-split-pos: 50%; user-select: none; -webkit-user-select: none; }
/* 第二个按钮是结果图 (第一个是原图, 中线是 span) */
.skl-split .skl-zoom:nth-of-type(2) { clip-path: inset(0 0 0 var(--skl-split-pos)); }
/* 中线: 透明的宽命中区居中压在分屏位置, 可见线用 ::before 画; 只有这里能拖, 图片其余位置仍是点击放大 */
.skl-split .skl-split-divider {
  position: absolute;
  inset-block: 0;
  left: var(--skl-split-pos);
  width: var(--skill-landing-split-divider-hit);
  transform: translateX(-50%);
  display: flex;
  justify-content: center;
  cursor: ew-resize;
  touch-action: none;
}
.skl-split .skl-split-divider::before {
  content: '';
  width: var(--skill-landing-split-divider);
  background: var(--bg-surface);
  transition: width var(--dur-fast) var(--ease-out);
}
.skl-split .skl-split-divider:hover::before,
.skl-split .skl-split-divider:focus-visible::before,
.skl-split.is-dragging .skl-split-divider::before { width: var(--skill-landing-split-divider-active); }
.skl-split .skl-split-divider:focus-visible { outline: none; }
/* 风格参考角标: 左下角一张小图, 压过 .skl-case-media / .skl-hero-visual 对 .skl-zoom 的铺满规则 */
.skl-split .skl-zoom.skl-split-ref {
  inset: auto auto var(--skill-landing-ref-offset) var(--skill-landing-ref-offset);
  width: var(--skill-landing-ref-width);
  height: auto;
  aspect-ratio: var(--skill-landing-case-ratio);
  border: var(--skill-landing-ref-border) solid var(--bg-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.skl-hero-visual .skl-zoom.skl-split-ref { width: var(--skill-landing-ref-width-hero); }
.skl-case figcaption { display: grid; gap: var(--skill-landing-gap-xs); }
.skl-case p { color: var(--fg-muted); font-size: var(--text-sm); }

/* 功能亮点 / 适用人群 */
.skl-feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(var(--skill-landing-card-min), 1fr)); gap: var(--skill-landing-gap-lg); }
.skl-feature {
  display: grid;
  align-content: start;
  gap: var(--skill-landing-gap-sm);
  padding: var(--skill-landing-gap-lg);
  border: var(--border-width-thin) solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--bg-surface);
}
.skl-feature p { color: var(--fg-muted); font-size: var(--text-sm); }
/* 「适合谁用」插画: 透明底插画放在品牌浅色底块上, 亮暗主题跟随 --accent-soft; 有插画时卡片内容居中 */
.skl-audience { justify-items: center; text-align: center; }
.skl-audience-icon { display: grid; place-items: center; width: var(--skill-landing-audience-icon); height: var(--skill-landing-audience-icon); margin-bottom: var(--skill-landing-gap-xs); border-radius: var(--radius-xl); background: var(--accent-soft); }
.skl-audience-icon img { width: 84%; height: 84%; object-fit: contain; }

/* 长文指南: 左栏标题 + 导语 + 目录 (桌面端吸顶), 右栏编号小节用细线分隔; 窄屏单列并隐藏目录 */
.skl-guide-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: var(--skill-landing-gap-xl); align-items: start; }
.skl-guide-aside { position: sticky; top: calc(var(--skill-landing-header-height) + var(--skill-landing-gap-lg)); display: grid; gap: var(--skill-landing-gap-sm); }
.skl-guide-aside > p { color: var(--fg-muted); line-height: var(--skill-landing-line); }
.skl-guide .skl-guide-toc { display: grid; gap: var(--skill-landing-gap-xs); margin-top: var(--skill-landing-gap-sm); padding-top: var(--skill-landing-gap-md); border-top: var(--border-width-thin) solid var(--border); }
.skl-guide-toc a { display: flex; gap: var(--skill-landing-gap-sm); color: var(--fg-muted); font-size: var(--text-sm); line-height: var(--skill-landing-line); }
.skl-guide-toc a:hover { color: var(--fg); }
/* 小节编号 (01、02…) 用计数器画在伪元素里: 不进标题与目录的文字内容, 爬虫读到的标题不带编号 */
.skl-guide-toc, .skl-guide-body { counter-reset: skl-guide; }
.skl-guide-toc a::before, .skl-guide-block h3::before {
  counter-increment: skl-guide;
  content: counter(skl-guide, decimal-leading-zero);
  flex: none;
  color: var(--fg-subtle);
  font-size: var(--text-sm);
  font-weight: normal;
  font-variant-numeric: tabular-nums;
}
.skl-guide-body { display: grid; }
.skl-guide-block { display: grid; gap: var(--skill-landing-gap-sm); padding-block: var(--skill-landing-gap-lg); border-top: var(--border-width-thin) solid var(--border); scroll-margin-top: calc(var(--skill-landing-header-height) + var(--skill-landing-gap-md)); }
.skl-guide-block:first-child { padding-top: 0; border-top: 0; }
.skl-guide-block h3 { display: flex; align-items: baseline; gap: var(--skill-landing-gap-sm); }
.skl-guide-block p, .skl-guide-list { color: var(--fg-muted); line-height: var(--skill-landing-line); }
.skl-guide-list strong { color: var(--fg); font-weight: var(--font-weight-semibold); }
/* 小节引用: 小号浅色, 链接下划线 */
.skl-guide-sources { color: var(--fg-subtle); font-size: var(--text-xs); }
.skl-guide-sources a { color: var(--fg-muted); text-decoration: underline; text-underline-offset: var(--skill-landing-link-underline-offset); }
.skl-guide-sources a:hover { color: var(--fg); }
/* 选择器要压过 .skl-page ul 与应用全局样式对 li 的列表重置 */
.skl-guide .skl-guide-list { display: grid; gap: var(--skill-landing-gap-xs); padding-left: var(--skill-landing-list-indent); list-style: disc; }
.skl-guide .skl-guide-list > li { list-style-type: disc; }
.skl-guide .skl-guide-list > li::marker { color: var(--fg-subtle); }
@media (max-width: 860px) {
  .skl-guide-layout { grid-template-columns: minmax(0, 1fr); gap: var(--skill-landing-gap-lg); }
  .skl-guide-aside { position: static; }
  .skl-guide-toc { display: none; }
}

/* 与普通 AI 生图对比: 三列表格 (对比项 / 普通 AI 生图 / Lovspark), 圆角外框、细线分行;
   Lovspark 一列淡品牌色底、表头用品牌色; 行首圆形图标: 左侧打叉, 右侧品牌色打勾 */
.skl-vs-wrap { overflow-x: auto; border: var(--border-width-thin) solid var(--border); border-radius: var(--radius-2xl); }
.skl-vs { width: 100%; min-width: var(--skill-landing-vs-min-width); border-collapse: collapse; font-size: var(--text-sm); }
.skl-vs th, .skl-vs td { padding: var(--skill-landing-gap-md) var(--skill-landing-gap-lg); border-bottom: var(--border-width-thin) solid var(--border); color: var(--fg-muted); text-align: left; vertical-align: middle; }
.skl-vs tbody tr:last-child > * { border-bottom: 0; }
.skl-vs thead th { padding-block: var(--skill-landing-gap-lg); color: var(--fg); font-weight: var(--font-weight-semibold); }
.skl-vs .skl-vs-dim { width: var(--skill-landing-vs-dim-width); color: var(--fg); font-weight: var(--font-weight-semibold); }
.skl-vs thead .skl-vs-dim { color: var(--fg-subtle); font-weight: normal; }
.skl-vs .skl-vs-ours { background: var(--skill-landing-vs-ours-bg); color: var(--fg); font-weight: var(--font-weight-semibold); }
.skl-vs thead .skl-vs-ours { color: var(--accent); }
.skl-vs-cell { display: flex; align-items: center; gap: var(--skill-landing-gap-sm); }
.skl-vs-icon {
  flex: none;
  width: var(--skill-landing-vs-icon);
  height: var(--skill-landing-vs-icon);
  padding: var(--skill-landing-vs-icon-pad);
  border-radius: var(--radius-pill);
}
.skl-vs-icon--no { background: var(--bg-subtle); color: var(--fg-subtle); }
.skl-vs-icon--yes { background: var(--accent); color: var(--fg-inverse); }

/* 底部 CTA */
/* 底部 CTA 独占一屏 (视口高度减顶栏), 内容垂直居中 */
.skl-final { min-height: calc(var(--skill-landing-viewport) - var(--skill-landing-header-height)); padding-top: 0; align-content: center; justify-items: center; text-align: center; }
.skl-final .skl-lead { max-width: var(--skill-landing-text-max); }
/* 收尾标题与首屏 H1 同级 */
.skl-final h2 { font-size: var(--skill-landing-h1); }

/* 技能卡片 (相关推荐与目录页共用) */
.skl-card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(var(--skill-landing-card-min), 1fr)); gap: var(--skill-landing-gap-lg); }
.skl-card-grid--related { grid-template-columns: repeat(var(--skill-landing-related-columns), minmax(0, 1fr)); }
.skl-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  border: var(--border-width-thin) solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--bg-surface);
  overflow: hidden;
  transition: box-shadow var(--dur-fast) var(--ease-out);
}
.skl-card:hover { box-shadow: var(--shadow-md); }
.skl-card-media { aspect-ratio: var(--skill-landing-media-ratio); background: var(--bg-subtle); overflow: hidden; }
.skl-card-media img { width: 100%; height: 100%; object-fit: cover; }
.skl-card-body { display: grid; gap: var(--skill-landing-gap-xs); padding: var(--skill-landing-gap-md); }
.skl-card-name { font-weight: var(--font-weight-semibold); }
.skl-card-desc {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  color: var(--fg-muted);
  font-size: var(--text-sm);
}
/* 总入口页分流卡片: 卡片底部标出对应技能名, 各卡片底边对齐 */
.skl-card-grid--starts .skl-card-body { flex: 1; grid-template-rows: auto auto 1fr; }
.skl-card-skill { align-self: end; color: var(--accent); font-size: var(--text-xs); font-weight: var(--font-weight-semibold); }

/* 目录页 */
.skl-catalog-hero { display: grid; gap: var(--skill-landing-gap-md); max-width: var(--skill-landing-text-max); padding: var(--skill-landing-gap-xl) 0; }

@media (max-width: 860px) {
  .skl-hero { grid-template-columns: minmax(0, 1fr); }
  .skl-hero-visual { aspect-ratio: var(--skill-landing-media-ratio); min-height: 0; }
  .skl-card-grid--related { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  /* 窄屏上下堆叠: 不再限高, 表单按内容展开, 结果区在下方 */
  .skl-bench { grid-template-columns: minmax(0, 1fr); }
  .skl-bench-form { max-height: none; }
  .skl-form { overflow: visible; }
  .skl-bench-output { min-height: 0; max-height: none; aspect-ratio: var(--skill-landing-case-ratio); }
  .skl-marker-host { position: fixed; z-index: var(--skill-landing-marker-z-mobile); padding-block: env(safe-area-inset-top, 0px) env(safe-area-inset-bottom, 0px); }
  .skl-steps-list { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  .skl-card, .skl-btn, .skl-upload-btn, .skl-drop, .skl-hero-drop, .skl-option, .skl-examples-item, .skl-faq-item, .skl-faq-q, .skl-faq-toggle, .skl-faq-bar, .skl-resource { transition: none; }
  .skl-spinner { animation-duration: calc(var(--dur-slow) * 4); }
}