/*
  按钮四态（尺寸 / 圆角 / 字号不变）
  hover  : 背景略加深
  focus  : 仅键盘 Tab 显示墨色外框；鼠标点完不留框
  active : 下移 1px + 更深底，点击必有按下反馈
  disable: 降对比、禁止指针，:disabled 与 aria-disabled 同等
*/
.primary-button,
.outline-button,
.create-button,
.login-button,
.filter-pill {
  -webkit-tap-highlight-color: transparent;
  transform: translateY(0);
  transition:
    background-color .15s ease,
    border-color .15s ease,
    color .15s ease,
    opacity .15s ease,
    transform .1s ease,
    box-shadow .1s ease;
}
.primary-button:focus,
.outline-button:focus,
.create-button:focus,
.login-button:focus,
.filter-pill:focus,
.password-toggle:focus,
.icon-button:focus,
.menu-button:focus {
  outline: none;
}
.primary-button:focus-visible,
.outline-button:focus-visible,
.login-button:focus-visible,
.filter-pill:focus-visible,
.password-toggle:focus-visible,
.icon-button:focus-visible,
.menu-button:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
.primary-button:disabled,
.primary-button[aria-disabled="true"],
.outline-button:disabled,
.outline-button[aria-disabled="true"],
.create-button:disabled,
.create-button[aria-disabled="true"],
.login-button:disabled,
.login-button[aria-disabled="true"],
.filter-pill:disabled,
.filter-pill[aria-disabled="true"] {
  opacity: .4;
  cursor: not-allowed;
  pointer-events: none;
  transform: none;
  box-shadow: none;
  transition: none;
}

.primary-button {
  background: var(--blue);
  color: white;
  border: 0;
  border-radius: var(--radius);
  padding: 14px 18px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  display: inline-block;
}
.primary-button:hover { background: var(--blue-hover); }
.primary-button:active {
  background: var(--blue-active);
  transform: translateY(1px);
  box-shadow: inset 0 1px 0 rgba(0, 0, 0, .16);
}

.outline-button {
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  border-radius: var(--radius);
  padding: 13px 17px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  display: inline-block;
}
.outline-button:hover {
  background: #e9eee9;
  border-color: var(--ink);
}
.outline-button:active {
  background: var(--line);
  border-color: var(--ink);
  transform: translateY(1px);
  box-shadow: inset 0 1px 0 rgba(0, 0, 0, .08);
}

.text-link { color: var(--blue); font-size: 12px; font-weight: 700; }
.text-link span { margin-left: 5px; }
.text-link:focus { outline: none; }
.text-link:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.filter-pills { display: flex; gap: 7px; flex-wrap: wrap; }
.filter-pill {
  border: 1px solid var(--line);
  background: transparent;
  padding: 8px 13px;
  border-radius: 99px;
  color: var(--muted);
  font-size: 11px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.filter-pill:hover { background: #e9eee9; color: var(--ink); }
.filter-pill.is-selected {
  background: var(--ink);
  color: white;
  border-color: var(--ink);
}
.filter-pill.is-selected:hover { background: var(--ink-hover); border-color: var(--ink-hover); }
.filter-pill:active {
  transform: translateY(1px);
  box-shadow: inset 0 1px 0 rgba(0, 0, 0, .1);
}
.filter-pill.is-selected:active { background: var(--ink-active); }
.msg-tab-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 16px;
  height: 16px;
  padding: 0 5px;
  border-radius: 99px;
  background: var(--orange);
  color: #fff;
  font: 700 10px/1 var(--sans);
}
.filter-pill.is-selected .msg-tab-badge {
  background: #fff;
  color: var(--ink);
}

.create-button:hover { background: var(--orange-hover); }
.create-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--paper), 0 0 0 4px var(--ink);
}
.create-button:active {
  background: var(--orange-active);
  transform: translateY(1px);
  box-shadow: inset 0 1px 0 rgba(0, 0, 0, .16);
}
.login-button:hover { background: var(--ink-hover); border-color: var(--ink-hover); }
.login-button:active {
  background: var(--ink-active);
  border-color: var(--ink-active);
  transform: translateY(1px);
  box-shadow: inset 0 1px 0 rgba(0, 0, 0, .2);
}

/* Base chrome for header login/create (states above). Admin pages skip layout.css. */
.login-button {
  border: 1px solid var(--ink);
  background: var(--ink);
  color: white;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  height: 34px;
  box-sizing: border-box;
  padding: 0 17px;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}
.create-button {
  border: 0;
  background: var(--orange);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  height: 34px;
  box-sizing: border-box;
  padding: 0 16px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  border-radius: 99px;
}

/* Shared article / compose content blocks (visual parity; pages/compose keep deltas only). */
.article-file,
.compose-file {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 10px 12px;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  background: var(--fill-soft);
}
.article-file a,
.compose-file a {
  color: var(--blue);
  font-size: 14px;
}
.article-file span,
.compose-file [data-size] {
  color: var(--prose-muted);
  font-size: 12px;
}
.article-formula,
.compose-formula {
  padding: 14px 16px;
  border-radius: var(--radius);
  background: var(--fill-muted);
  text-align: center;
}
.article-formula code,
.compose-formula code {
  font: 16px/1.6 var(--mono);
  background: transparent;
  padding: 0;
}
.article-toc,
.compose-toc {
  padding: 14px 18px;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  background: var(--fill-panel);
}
.article-toc p,
.compose-toc p {
  margin: 0 0 8px;
  font: 600 14px var(--sans);
  color: var(--prose);
}
.article-toc ul,
.compose-toc ul {
  margin: 0;
  padding-left: 18px;
}
.article-toc li,
.compose-toc li {
  margin: 4px 0;
  font-size: 14px;
}

@media (prefers-reduced-motion: reduce) {
  .primary-button,
  .outline-button,
  .create-button,
  .login-button,
  .filter-pill {
    transition: none;
  }
  .primary-button:active,
  .outline-button:active,
  .create-button:active,
  .login-button:active,
  .filter-pill:active {
    transform: none;
  }
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 76px 0 28px;
}
.section-heading > div:first-child { display: flex; align-items: center; gap: 18px; }
.section-index {
  font: 500 10px var(--mono);
  letter-spacing: .12em;
  color: var(--orange);
  text-transform: uppercase;
}
.section-heading h2 { font: 700 27px var(--serif); letter-spacing: -.05em; margin: 0; }

.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.skill-card {
  background: #fff;
  border: 1px solid transparent;
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .2s ease, border .2s ease;
  display: block;
}
.skill-card:hover { transform: translateY(-4px); border-color: var(--line); }
.card-image {
  height: 190px;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.card-image img { display: block; width: 100%; height: 100%; object-fit: cover; }
.card-symbol { font: 100px var(--serif); color: rgba(255,255,255,.72); }
.gradient-cyan {
  background: radial-gradient(circle at 70% 30%, #53d2bb, transparent 22%), linear-gradient(135deg,#073e4e,#116bd0);
}
.image-tag {
  position: absolute;
  top: 18px;
  left: 18px;
  padding: 6px 9px;
  background: var(--lime);
  color: var(--dark);
  font: 500 9px var(--mono);
  letter-spacing: .05em;
  border-radius: var(--radius-sm);
}
.card-body { padding: 23px 22px 18px; }
.card-body h3 { font: 700 22px/1.3 var(--serif); letter-spacing: -.04em; margin: 10px 0 8px; }
.card-excerpt {
  color: var(--muted);
  line-height: 1.65;
  font-size: 12px;
  min-height: 39px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-bottom, .story-footer {
  display: flex;
  justify-content: space-between;
  padding-top: 15px;
  border-top: 1px solid #cfd9d1;
  color: var(--muted);
  font: 10px var(--mono);
}
.card-bottom { margin-top: 21px; }
.arrow, .mini-arrow { color: var(--blue); font-size: 18px; line-height: .7; }

.lead-story {
  display: grid;
  grid-template-columns: 1.32fr .9fr;
  min-height: 280px;
  height: 100%;
  background: #e9eee9;
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .25s ease;
}
.lead-story:hover { transform: translateY(-4px); }
.lead-image { min-height: 280px; position: relative; overflow: hidden; }
.lead-image img,
.lead-image .card-image { height: 100%; width: 100%; min-height: 280px; object-fit: cover; display: block; }
.lead-image .card-image { display: grid; place-items: center; }
.lead-content { padding: 32px 32px 24px; display: flex; flex-direction: column; justify-content: center; }
.story-kicker { font: 500 10px var(--mono); letter-spacing: .12em; color: var(--orange); }
.lead-content h3 { font: 700 clamp(22px, 2.4vw, 34px)/1.22 var(--serif); letter-spacing: -.06em; margin: 12px 0; }
.lead-content > p:not(.story-kicker) {
  color: var(--muted);
  line-height: 1.7;
  font-size: 13px;
  max-width: 390px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.story-footer { margin-top: 20px; }

.compact-intro { padding: 100px 0 56px; border-bottom: 1px solid var(--line); }
.author-section-title { font: 700 22px/1.3 var(--serif); margin: 28px 0 12px; }
.compose-review-note {
  margin: 0 0 16px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: #f6f7f4;
}
.page-intro h1 { font: 900 clamp(60px, 8vw, 105px)/.95 var(--serif); letter-spacing: -.09em; margin: 27px 0 18px; }
.page-intro h1 em { color: var(--blue); font-style: normal; }
.page-intro > p:last-child { color: var(--muted); font-size: 14px; }
.list-toolbar { display: flex; justify-content: space-between; padding: 28px 0 20px; align-items: center; gap: 18px; flex-wrap: wrap; }
.result-count { color: var(--muted); font-size: 12px; }
.result-count strong { color: var(--ink); font-size: 20px; }
.sort-tabs { margin-right: auto; }
.article-list { border-top: 1px solid var(--ink); }
.list-item {
  display: grid;
  grid-template-columns: 185px 1fr 30px;
  gap: 26px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.list-item:hover h2 { color: var(--blue); }
.list-thumb { height: 118px; display: grid; place-items: center; overflow: hidden; border-radius: var(--radius); }
.list-thumb img { width: 100%; height: 100%; object-fit: cover; }
.list-thumb span { font: 70px var(--serif); color: rgba(255,255,255,.75); }
.list-info h2 { font: 700 22px/1.3 var(--serif); letter-spacing: -.04em; margin: 10px 0 8px; }
.list-info p:last-child {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.list-arrow { color: var(--blue); font-size: 22px; }

.skill-card-image { height: 170px; position: relative; overflow: hidden; background: #dfe6e1; border-radius: var(--radius); }
.skill-card-image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.skill-card-image.gradient-cyan { display: grid; place-items: center; }
.skill-card-image .card-symbol { font-size: 64px; }
.skill-card .image-tag { background: var(--lime); color: var(--dark); }
.model-card .image-tag { background: var(--lime); color: var(--dark); }

.tag-list { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-list span, .tag-list a { background: #e9eee9; padding: 7px 8px; font-size: 10px; display: inline-block; border-radius: var(--radius-sm); }
.tag-list a:hover { background: var(--ink); color: white; }

.empty-state {
  padding: 48px 32px;
  color: var(--muted);
  font-size: 14px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
  margin: 24px 0;
}
.empty-state p { margin: 0 0 12px; }
.empty-state p:last-child { margin-bottom: 0; }
.empty-state-hint a { color: var(--blue); }
.empty-state-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

@keyframes skeleton-pulse {
  0%, 100% { opacity: .52; }
  50% { opacity: 1; }
}
.skeleton {
  display: block;
  background: #e4ebe6;
  animation: skeleton-pulse 1.1s ease-in-out infinite;
  pointer-events: none;
  border-radius: var(--radius-sm);
}
.skeleton-pill { width: 52px; height: 32px; border-radius: 99px; }
.skeleton-count { display: inline-block; width: 36px; height: 18px; vertical-align: -2px; }
.skeleton-list {
  display: grid;
  grid-template-columns: 185px 1fr 30px;
  gap: 26px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.skeleton-thumb { height: 118px; }
.skeleton-copy { min-height: 72px; }
.skeleton-line { height: 12px; margin: 10px 0 0; max-width: 72%; }
.skeleton-line.wide { max-width: 92%; height: 20px; margin-top: 0; }
.skeleton-lead {
  display: grid;
  grid-template-columns: 1.32fr .9fr;
  min-height: 280px;
  background: #e9eee9;
  border-radius: var(--radius);
  overflow: hidden;
}
.skeleton-lead-media { min-height: 280px; }
.skeleton-card { background: #fff; border-radius: var(--radius); overflow: hidden; }
.skeleton-card-media { height: 190px; }
.skeleton-card-body { padding: 18px 16px 22px; }
.error-state {
  color: var(--muted);
  font-size: 14px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
  padding: 48px 32px;
  margin: 40px 0;
}
.error-state h2 { font: 700 28px var(--serif); color: var(--ink); margin-bottom: 12px; }
.error-state .primary-button { margin-top: 8px; }

.studio-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 25px; gap: 16px; }
.studio-toolbar h2 { font: 700 24px var(--serif); margin: 0 0 7px; }
.studio-tools { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.studio-search { display: flex; align-items: center; gap: 8px; color: var(--muted); }
.studio-search input,
.studio-tools select {
  border: 0;
  border-bottom: 1px solid var(--ink);
  background: transparent;
  padding: 8px 0;
  min-width: 180px;
  font: 13px var(--sans);
  color: var(--ink);
  outline: 0;
}
.studio-search input:focus,
.studio-tools select:focus { border-color: var(--blue); }
.studio-search input::placeholder { color: var(--muted); }
.studio-work-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.studio-work-row.has-thumb {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px 16px;
}
.studio-work-thumb {
  display: block;
  width: 112px;
  height: 74px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--fill-soft, #f7f8fa);
  border: 1px solid var(--line);
  flex: 0 0 auto;
}
.studio-work-thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.studio-work-thumb.is-fallback {
  display: grid;
  place-items: center;
  font: 700 28px/1 var(--serif);
  color: var(--muted);
  background: linear-gradient(145deg, #eef2ef, #e3e9e5);
}
.studio-work-copy {
  min-width: 0;
}
.studio-work-row strong { display: block; font: 700 18px/1.35 var(--serif); }
.studio-work-row strong a:hover { color: var(--blue); }
.studio-work-row span { color: var(--muted); font-size: 12px; }
.studio-work-copy span { color: var(--muted); font-size: 12px; }
.studio-work-actions { display: flex; flex-wrap: wrap; gap: 8px; flex: 0 0 auto; }
.studio-reject-form {
  flex: 1 0 100%;
  display: grid;
  gap: 8px;
  max-width: 480px;
}
.studio-reject-form[hidden] { display: none; }
.studio-reject-form textarea {
  width: 100%;
  min-height: 72px;
}
.studio-reject-actions { display: flex; gap: 8px; margin: 0; }
.studio-work-row.is-rejecting .studio-work-actions [data-reject] { display: none; }

.auth-card, .detail-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px;
}
.form-narrow { max-width: 560px; }
.detail-panel-follow { margin-top: 24px; }
.studio-block-title { font: 700 24px var(--serif); margin: 36px 0 16px; }
#taxonomy-grid h2 { font: 700 22px var(--serif); margin: 8px 0 6px; }
.field { display: grid; gap: 8px; margin-bottom: 16px; }
.field > span, .field-label {
  font: 10px var(--mono);
  color: var(--muted);
  letter-spacing: .06em;
  text-transform: uppercase;
}
.field-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.field-aside { color: var(--blue); font: 700 12px var(--sans); letter-spacing: 0; text-transform: none; }
.field-aside:hover { text-decoration: underline; }
.field input, .field select, .field textarea {
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: var(--radius);
  padding: 12px;
  color: var(--ink);
  outline: 0;
  width: 100%;
  font: 13px var(--sans);
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue); }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible {
  box-shadow: 0 0 0 3px rgba(36, 87, 214, .16);
}
.field input.is-invalid { border-color: #a6572f; }
.password-field { position: relative; }
.password-field input { padding-right: 58px; }
.password-toggle {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  border: 0;
  background: transparent;
  color: var(--blue);
  font: 700 12px var(--sans);
  padding: 8px 10px;
  cursor: pointer;
}
.code-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: stretch;
}
.code-field input { min-width: 0; }
.code-field .outline-button {
  white-space: nowrap;
  padding-inline: 14px;
  min-width: 7.5em;
}
.field-error {
  display: none;
  color: #a6572f;
  font: 12px/1.4 var(--sans);
  font-style: normal;
}
.field-error:not(:empty) { display: block; }
.field-hint {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}
.check-field {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 2px 0 20px;
  font-size: 13px;
  cursor: pointer;
  color: var(--ink);
  width: fit-content;
}
.check-field input {
  width: 15px;
  height: 15px;
  accent-color: var(--ink);
}
.check-field span { letter-spacing: 0; text-transform: none; font: 13px var(--sans); color: var(--ink); }
.form-error { color: #a6572f; font-size: 13px; margin: 0 0 14px; min-height: 1.2em; }
.form-success {
  background: #e3f4e6;
  color: #3b7654;
  padding: 14px 16px;
  font-size: 13px;
  margin: 0 0 18px;
  border-radius: var(--radius);
}
.form-hint { color: var(--muted); font-size: 13px; line-height: 1.7; }
.article-review-note {
  margin: 16px 0 0;
  padding: 12px 16px;
  background: #f3efe6;
  border-radius: var(--radius);
}
.auth-links { display: flex; gap: 16px; margin-top: 18px; font-size: 13px; }
.auth-links a { color: var(--blue); }

.article-topbar {
  height: 78px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font: 10px var(--mono);
  color: var(--muted);
}
.back-button { color: var(--blue); font-size: 12px; font-weight: 700; }
.back-button:focus { outline: none; }
.back-button:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
.article-layout {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 0 80px;
  display: grid;
  grid-template-columns: minmax(0, 760px) 200px;
  gap: 90px;
}
.article-main h1 { font: 900 clamp(40px, 5vw, 72px)/1.1 var(--serif); letter-spacing: -.08em; margin: 26px 0 25px; }
.article-lead { font: 500 18px/1.7 var(--serif); color: #4f615a; max-width: 680px; }
.article-byline { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; color: var(--muted); font: 10px var(--mono); margin: 30px 0 24px; }
.article-byline a {
  color: inherit;
  font-weight: 700;
  text-decoration: none;
}
.article-byline a:hover { color: var(--ink); }
.follow-author {
  margin-left: 4px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
  font: 700 11px var(--sans);
  letter-spacing: .04em;
  padding: 4px 12px;
  border-radius: 99px;
  cursor: pointer;
}
.follow-author:hover { background: #222; }
.follow-author.is-on {
  background: transparent;
  color: var(--ink);
}
.follow-author.is-on:hover { background: #eef3ef; }
a.follow-author {
  display: inline-block;
  text-decoration: none;
}
.avatar {
  width: 25px;
  height: 25px;
  display: grid;
  place-items: center;
  color: white;
  background: var(--blue);
  border-radius: 50%;
  font: 700 12px var(--sans);
  overflow: hidden;
}
.avatar.has-photo {
  padding: 0;
  background: var(--line);
}
.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
img.article-cover { display: block; width: 100%; aspect-ratio: 16/9; object-fit: cover; border-radius: var(--radius); margin: 0 0 8px; }
div.article-cover {
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 220px;
  aspect-ratio: 16/9;
  border-radius: var(--radius);
  overflow: hidden;
}
.article-copy { padding: 28px 0 50px; }
/* No cover: pull body up under byline. With cover: keep room after the image. */
.article-byline + .article-copy { padding-top: 8px; }
.article-cover + .article-copy { padding-top: 36px; }
.article-copy h2 { font: 700 28px var(--serif); letter-spacing: -.05em; margin: 35px 0 16px; }
.article-copy p { margin: 0 0 1.1em; color: #42534d; font: 16px/1.75 var(--serif); letter-spacing: 0; word-spacing: 0; }
.article-copy [style*="text-align: justify"],
.article-copy [style*="text-align:justify"],
.article-copy [align="justify"] {
  text-align: start !important;
}
.article-copy blockquote {
  margin: 34px 0;
  border-left: 3px solid var(--orange);
  padding: 11px 25px;
  font: 700 22px/1.65 var(--serif);
  color: var(--ink);
}
.source-note { font-size: 13px !important; }
.source-link { color: var(--blue); font: 12px var(--mono); display: inline-block; margin-bottom: 8px; }
.article-aside { padding-top: 120px; }
.aside-block { border-top: 1px solid var(--line); padding: 16px 0 26px; }
.aside-label { display: block; margin-bottom: 16px; }
.related-story { display: block; padding: 12px 0; border-bottom: 1px solid var(--line); font: 12px/1.5 var(--serif); }
.related-story b { float: right; color: var(--blue); }
.article-actions { display: grid; gap: 8px; margin-top: 13px; }
.article-actions > button,
.article-actions > a:not(.primary-button):not(.outline-button),
.article-actions .share-launch > #share-toggle {
  border: 1px solid var(--line);
  background: transparent;
  border-radius: var(--radius);
  padding: 10px;
  text-align: left;
  font-size: 11px;
  cursor: pointer;
  display: block;
}
.article-actions .primary-button,
.article-actions .outline-button {
  display: block;
  width: 100%;
  text-align: center;
  box-sizing: border-box;
  padding: 10px;
}
.article-actions > button:not(.primary-button):not(.outline-button):hover,
.article-actions > a:not(.primary-button):not(.outline-button):hover,
.article-actions .share-launch > #share-toggle:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.article-actions .primary-button:hover {
  background: var(--blue-hover);
  color: #fff;
  border-color: transparent;
}
.article-actions .primary-button:active {
  background: var(--blue-active);
  color: #fff;
}
.article-actions > button:focus,
.article-actions > a:focus,
.article-actions .share-launch > #share-toggle:focus { outline: none; }
.article-actions > button:focus-visible,
.article-actions > a:focus-visible,
.article-actions .share-launch > #share-toggle:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
.article-actions > button:active:not(:disabled):not(.primary-button):not(.outline-button),
.article-actions .share-launch > #share-toggle:active {
  transform: translateY(1px);
}
.article-actions > button:disabled,
.article-actions > button[aria-disabled="true"] {
  opacity: .4;
  cursor: not-allowed;
  pointer-events: none;
  transform: none;
}
.article-actions > button.is-on { border-color: var(--orange); color: var(--orange); }
.share-launch { position: relative; }
.article-actions #share-toggle {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  width: 100%;
}
.article-actions #share-toggle svg {
  width: 15px;
  height: 15px;
  fill: currentColor;
}
.share-sheet {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 20px 16px;
}
.share-sheet-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(18, 24, 22, .46);
  padding: 0;
  cursor: pointer;
}
.share-sheet-panel {
  position: relative;
  z-index: 1;
  width: min(360px, calc(100vw - 28px));
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 18px 16px;
  box-shadow: 0 22px 56px rgba(16, 24, 22, .26);
  animation: share-sheet-in .22s ease-out;
}
@keyframes share-sheet-in {
  from { opacity: 0; transform: translateY(10px) scale(.98); }
  to { opacity: 1; transform: none; }
}
.share-sheet-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.share-sheet-head h2 {
  margin: 0;
  font: 700 22px/1.2 var(--serif);
  letter-spacing: -.04em;
  color: var(--ink);
}
.share-sheet-sub {
  margin: 4px 0 0;
  font: 12px/1.45 var(--sans);
  color: var(--muted);
}
.share-sheet-close {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border: 0;
  border-radius: 50%;
  background: var(--fill-soft);
  color: var(--ink);
  font: 700 22px/1 var(--sans);
  cursor: pointer;
}
.share-sheet-close:hover { background: #e8ece9; }
.share-sheet-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.share-sheet-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: 104px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--fill-panel);
  padding: 14px 8px 12px;
  font: 600 12px/1.3 var(--sans);
  color: var(--ink);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease, transform .12s ease;
}
.share-sheet-item:hover {
  border-color: #c9d4cd;
  background: #fff;
}
.share-sheet-item:active { transform: translateY(1px); }
.share-sheet-item.is-active {
  border-color: #9fd9b4;
  background: #f3fbf6;
}
.share-sheet-item:focus { outline: none; }
.share-sheet-item:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
.share-sheet-label { letter-spacing: .01em; }

/* Auth floating modal (login / register) */
.auth-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 24px 16px;
}
.auth-modal[hidden] { display: none !important; }
.auth-modal-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  padding: 0;
  cursor: pointer;
  background: rgba(18, 24, 22, .48);
}
.auth-modal-panel {
  position: relative;
  z-index: 1;
  width: min(420px, calc(100vw - 28px));
  max-height: min(92vh, 760px);
  overflow: auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px 24px 26px;
  box-shadow: 0 24px 64px rgba(16, 24, 22, .28);
}
.auth-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.auth-modal-brand {
  font-size: 18px;
  text-decoration: none;
}
.auth-modal-close {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: var(--paper);
  color: var(--ink);
  font: 700 22px/1 var(--sans);
  cursor: pointer;
}
.auth-modal-close:hover { background: #e8ece9; }
.auth-modal-modes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin: 0 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper);
}
.auth-modal-mode {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: 700 13px var(--sans);
  padding: 11px 12px;
  cursor: pointer;
}
.auth-modal-mode + .auth-modal-mode { border-left: 1px solid var(--line); }
.auth-modal-mode.is-active {
  background: #fff;
  color: var(--ink);
  box-shadow: inset 0 -2px 0 var(--blue);
}
.auth-modal-panel h2 {
  font: 700 28px/.95 var(--serif);
  letter-spacing: -.04em;
  margin: 0 0 14px;
}
.auth-modal-form .auth-submit { width: 100%; }
.auth-login-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 2px 0 20px;
}
.auth-login-row .check-field { margin: 0; }
.auth-login-row .field-aside { font-weight: 500; }
.auth-modal-panel .form-error:empty { display: none; }
.auth-modal-panel .form-error {
  margin: 0 0 12px;
  color: #a6572f;
  font: 13px/1.4 var(--sans);
}
.auth-wechat {
  margin: 0 0 18px;
}
.auth-wechat-qr {
  display: grid;
  justify-items: center;
  gap: 10px;
  margin-bottom: 4px;
}
.auth-wechat-frame-wrap {
  width: 220px;
  height: 220px;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: var(--paper);
  display: grid;
  place-items: center;
}
.auth-wechat-frame {
  width: 300px;
  height: 400px;
  border: 0;
  transform: scale(0.72);
  transform-origin: top center;
  margin-top: -8px;
}
.auth-wechat-frame[hidden] { display: none; }
.auth-wechat-hint,
.auth-wechat-disabled {
  margin: 0;
  color: var(--muted);
  font: 13px/1.45 var(--sans);
  text-align: center;
}
.auth-wechat-disabled {
  margin-bottom: 10px;
  color: var(--ink);
}
.auth-wechat-mp {
  margin-bottom: 4px;
}
.auth-wechat-mp-btn {
  width: 100%;
  border: 0;
  border-radius: var(--radius);
  background: #07c160;
  color: #fff;
  font: 700 14px/1.2 var(--sans);
  padding: 13px 16px;
  cursor: pointer;
}
.auth-wechat-mp-btn:hover { filter: brightness(.96); }
.auth-wechat-mp-btn:disabled {
  background: #b7c2bb;
  cursor: not-allowed;
  filter: none;
}
.auth-wechat-divider {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  margin: 16px 0 4px;
  color: var(--muted);
  font: 12px/1 var(--sans);
}
.auth-wechat-divider::before,
.auth-wechat-divider::after {
  content: "";
  height: 1px;
  background: var(--line);
}
@media (max-width: 520px) {
  .auth-modal { padding: 12px; align-items: end; }
  .auth-modal-panel {
    width: 100%;
    max-height: 90vh;
    border-radius: 14px 14px 10px 10px;
    padding: 18px 16px 22px;
  }
  .auth-wechat-frame-wrap { width: 200px; height: 200px; }
}

.share-badge {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
}
.share-badge svg { width: 22px; height: 22px; fill: currentColor; }
.share-badge.is-wechat { background: #e7f8ee; color: #07c160; }
.share-badge.is-copy { background: #eef1f4; color: var(--ink); }
.share-badge.is-qq { background: #e6f7fd; color: #12b7f5; }
.share-wechat {
  margin-top: 14px;
  padding: 14px 12px 10px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--fill-soft);
  text-align: center;
}
.share-wechat img {
  width: 168px;
  height: 168px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--line);
}
.share-wechat p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 12px;
}
@media (max-width: 520px) {
  .share-sheet {
    place-items: end center;
    padding: 12px 12px calc(12px + env(safe-area-inset-bottom, 0px));
  }
  .share-sheet-panel {
    width: 100%;
    border-radius: 16px 16px 12px 12px;
    animation-name: share-sheet-up;
  }
  @keyframes share-sheet-up {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: none; }
  }
}

.article-discuss {
  margin-top: 48px;
  padding-top: 36px;
  border-top: 1px solid var(--ink);
  scroll-margin-top: 90px;
}
.discuss-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 22px;
}
.discuss-head h2 { font: 700 28px var(--serif); letter-spacing: -.05em; margin: 0; }
.discuss-head p { margin: 0; color: var(--muted); font-size: 13px; }
.discuss-head strong { color: var(--ink); font-size: 18px; }
.comment-gate {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
  padding: 18px 20px;
  font-size: 14px;
  margin: 0 0 28px;
}
.comment-gate a { color: var(--blue); font-weight: 700; }
.comment-composer { margin-bottom: 28px; }
.comment-composer textarea { resize: vertical; min-height: 96px; }
.comment-card {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.comment-card.is-reply {
  margin: 12px 0 0 36px;
  padding: 14px 0 0;
  border-top: 1px solid var(--line);
  border-bottom: 0;
}
.comment-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  color: var(--muted);
  font: 10px var(--mono);
}
.comment-head strong { color: var(--ink); font: 700 13px var(--sans); }
.comment-card > p { margin: 0; color: #42534d; font: 15px/1.7 var(--serif); }
.comment-reply-to {
  margin: 0 0 4px;
  color: var(--muted);
  font: 12px/1.4 var(--sans);
}
.comment-reply-to span { color: var(--blue); font-weight: 600; }
.comment-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-top: 10px;
}
.comment-like-btn,
.comment-reply-btn {
  margin-top: 0;
  border: 0;
  background: transparent;
  color: var(--blue);
  font: 700 12px var(--sans);
  padding: 0;
  cursor: pointer;
}
.comment-like-btn.is-on { color: var(--ink); }
.comment-card.is-reply > .reply-composer { margin-top: 12px; }
.reply-actions { display: flex; gap: 8px; align-items: center; }

.skill-bullet-list { color: #42534d; font: 16px/1.9 var(--serif); padding-left: 20px; }
.model-feature-list,
.model-step-list,
.model-update-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}
.model-feature-list li,
.model-step-list li,
.model-update-list li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.model-feature-list li {
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
}
.model-update-list li {
  grid-template-columns: 88px minmax(0, 1fr);
}
.model-feature-list strong,
.model-step-list strong,
.model-update-list strong { display: block; font: 700 16px var(--serif); margin-bottom: 4px; }
.model-feature-list span,
.model-step-list p,
.model-update-list p { margin: 0; color: #42534d; font: 14px/1.7 var(--sans); }
.model-step-index {
  font: 700 18px var(--mono);
  color: var(--blue);
  letter-spacing: .04em;
}
.model-update-label {
  font: 600 12px/1.35 var(--mono);
  color: var(--blue);
  letter-spacing: .02em;
  padding-top: 2px;
  word-break: break-word;
}
@media (max-width: 720px) {
  .model-update-list li {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 10px;
  }
}
.skill-detail-image { display: block; width: 100%; margin: 28px 0; border-radius: var(--radius); }
.skill-example,
.prompt-body {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  background: #e9eee9;
  border-radius: var(--radius);
  padding: 18px 20px;
  font: 13px/1.7 var(--mono);
  color: var(--ink);
  overflow-x: auto;
}
.skill-aside-text { margin: 0; font-size: 13px; color: #42534d; }
.article-copy code { font: 12px var(--mono); background: #e9eee9; padding: 2px 6px; border-radius: var(--radius-sm); }
.install-panel { background: #e9eee9; padding: 18px 20px; margin-top: 16px; border-radius: var(--radius); }
.install-panel p { font-size: 14px !important; margin: 0 0 8px; }

@media (max-width: 900px) {
  .lead-story { grid-template-columns: 1fr; }
  .lead-image { min-height: 220px; }
  .lead-image img,
  .lead-image .card-image { min-height: 220px; }
  .skills-grid { grid-template-columns: 1fr 1fr; }
  .article-layout { grid-template-columns: 1fr; gap: 20px; }
  .article-aside { padding-top: 0; }
}
@media (max-width: 600px) {
  .section-heading { margin-top: 55px; align-items: end; }
  .section-heading h2 { font-size: 23px; }
  .filter-pills { overflow-x: auto; margin-top: 18px; padding-bottom: 5px; flex-wrap: nowrap; }
  .skills-grid { grid-template-columns: 1fr; }
  .lead-content { padding: 30px 23px; }
  .lead-image { min-height: 220px; }
  .compact-intro { padding: 65px 0 40px; }
  .page-intro h1 { font-size: 63px; }
  .list-toolbar { display: block; }
  .sort-tabs { margin: 12px 0; }
  .list-item { grid-template-columns: 100px 1fr 14px; gap: 12px; }
  .list-thumb { height: 82px; }
  .skeleton-list { grid-template-columns: 100px 1fr 14px; gap: 12px; }
  .skeleton-thumb { height: 82px; }
  .skeleton-lead { grid-template-columns: 1fr; }
  .skeleton-lead-media { min-height: 220px; }
  .list-info h2 { font-size: 16px; }
  .list-info p:last-child { display: none; }
  .studio-toolbar { display: block; }
  .studio-work-row.has-thumb {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 12px;
  }
  .studio-work-thumb {
    width: 84px;
    height: 56px;
  }
  .studio-work-thumb.is-fallback { font-size: 22px; }
  .studio-work-actions { grid-column: 1 / -1; }
  .article-main h1 { font-size: 42px; }
  .article-lead { font-size: 16px; }
  .article-copy p { font-size: 15px; }
}