/* ==================== 翼讯优特殊页面组件 (styles.css) ==================== */
/* 依赖 base.css · 用于 delivery / news / news-detail 页面 */

/* ==================== Loop Board / Steps (delivery) ==================== */
.loop__board {
  position: relative; margin-top: 3rem; padding: 1.1rem;
  border-radius: 24px; background: var(--white);
  border: 1px solid var(--gray-200);
  box-shadow: 0 8px 32px rgba(0,0,0,.04);
}
.loop__board::before {
  content: ''; position: absolute; left: 1.1rem; right: 1.1rem; top: 0;
  height: 3px; border-radius: 999px;
  background: linear-gradient(90deg, rgba(214,0,15,.5), rgba(214,0,15,.15), transparent);
  pointer-events: none;
}
.loop-steps {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px; align-items: stretch;
  background: var(--gray-200); border-radius: 16px; overflow: hidden;
}
.loop-step {
  min-width: 0; padding: 1.35rem 1rem 1.2rem;
  background: var(--white); text-align: left; transition: background .25s ease;
}
.loop-step:hover { background: var(--gray-50); }
.loop-step__num { margin: 0 0 .75rem; font-size: .74rem; font-weight: 800; letter-spacing: .14em; color: var(--primary); }
.loop-step__title { font-size: 1rem; font-weight: 700; color: var(--text-dark); line-height: 1.35; }
.loop-step__desc { margin-top: .55rem; font-size: .81rem; color: var(--text-dark-soft); line-height: 1.72; min-height: 5.5em; }
.loop__summary { position: relative; z-index: 1; margin-top: 1rem; font-size: .9rem; color: var(--text-dark-soft); }
.loop__layer-label { font-weight: 700; font-size: .85rem; letter-spacing: .15em; }

/* ==================== Pilot Timeline (delivery) ==================== */
.pilot-timeline {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem; margin-top: 3rem; position: relative; counter-reset: pilot;
}
.pilot-timeline::before {
  content: ''; position: absolute; top: 30px; left: 12.5%; right: 12.5%;
  height: 3px; background: linear-gradient(90deg, rgba(214,0,15,.5), rgba(214,0,15,.2));
  border-radius: 2px;
}
.pilot-phase {
  counter-increment: pilot; text-align: center; position: relative;
  padding: 2rem 1.2rem 1.35rem; background: var(--white);
  border: 1px solid var(--gray-200); border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,.04); overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.pilot-phase::before { content: ''; position: absolute; inset: 0 0 auto 0; height: 4px; background: linear-gradient(90deg, rgba(214,0,15,.85), rgba(214,0,15,.35)); opacity: .9; }
.pilot-phase::after { content: '0' counter(pilot); position: absolute; right: 1rem; top: 1rem; font-size: .86rem; font-weight: 800; color: var(--gray-300); letter-spacing: .06em; }
.pilot-phase:hover { transform: translateY(-5px); border-color: var(--primary); box-shadow: 0 16px 48px rgba(214,0,15,.08); }
.pilot-phase__dot {
  width: 18px; height: 18px; background: var(--primary);
  border: 4px solid var(--gray-50); border-radius: 50%;
  margin: 4px auto 1.5rem; position: relative; z-index: 2;
  box-shadow: 0 2px 10px rgba(214,0,15,.15);
}
.pilot-phase__week { font-size: .72rem; font-weight: 700; letter-spacing: .06em; margin-bottom: .5rem; color: var(--primary); }
.pilot-phase__title { font-size: 1rem; font-weight: 700; margin-bottom: .5rem; color: var(--text-dark); }
.pilot-phase__items { font-size: .82rem; color: var(--text-dark-soft); line-height: 1.8; }

/* ==================== Metrics Panel (delivery) ==================== */
.metrics-panel {
  position: relative; margin-top: 3rem; padding: 1.2rem;
  border-radius: 24px; background: var(--white);
  border: 1px solid var(--gray-200);
  box-shadow: 0 8px 32px rgba(0,0,0,.04);
  text-align: left; overflow: hidden;
}
.metrics-panel::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at top left, rgba(214,0,15,.04), transparent 30%),
              radial-gradient(circle at bottom right, rgba(214,0,15,.02), transparent 34%);
  pointer-events: none;
}
.metrics-panel__intro {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
  gap: 1.25rem 2rem; align-items: end; padding: .65rem .45rem 1.3rem;
}
.metrics-panel__eyebrow { font-size: .72rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--primary); margin-bottom: .7rem; }
.metrics-panel__statement { font-size: clamp(1.35rem, 2.4vw, 2rem); font-weight: 700; line-height: 1.35; color: var(--text-dark); max-width: 12em; }
.metrics-panel__summary { font-size: .92rem; line-height: 1.85; color: var(--text-dark-soft); max-width: 32rem; justify-self: end; }
.metrics-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr;
  gap: 1px; background: var(--gray-200); border-radius: 16px; overflow: hidden;
}
.metric-card {
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: 72px minmax(0, 1fr) minmax(0, .95fr);
  gap: 1rem 1.4rem; align-items: center; text-align: left;
  padding: 1.3rem 1.4rem; background: var(--white);
  transition: background .25s ease;
}
.metric-card:hover { background: var(--gray-50); }
.metric-card__index { font-size: .86rem; font-weight: 800; letter-spacing: .18em; color: var(--primary); }
.metric-card__main { min-width: 0; }
.metric-card__label { font-size: 1rem; font-weight: 700; color: var(--text-dark); margin-bottom: .22rem; }
.metric-card__desc { font-size: .82rem; color: var(--text-dark-soft); }
.metric-card__note { font-size: .84rem; line-height: 1.8; color: var(--text-dark-soft); max-width: 24rem; }

/* ==================== AI Cards (delivery) ==================== */
.ai-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 3rem; }
.ai-card {
  position: relative; overflow: hidden; padding: 2.5rem;
  border-radius: 16px; border: 1px solid var(--gray-200);
  background: var(--white);
  box-shadow: 0 4px 16px rgba(0,0,0,.04); transition: all .3s;
}
.ai-card::before { content: ''; position: absolute; inset: 0 0 auto 0; height: 3px; background: linear-gradient(90deg, rgba(214,0,15,.7), rgba(214,0,15,.2), transparent); }
.ai-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: 0 16px 48px rgba(214,0,15,.08); }
.ai-card__header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.2rem; }
.ai-card__icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; flex-shrink: 0;
  background: var(--primary-soft); color: var(--primary);
}
.ai-card__icon--amber, .ai-card__icon--blue, .ai-card__icon--emerald,
.ai-card__icon--purple, .ai-card__icon--rose, .ai-card__icon--cyan { background: var(--primary-soft); }
.ai-card__meta { text-align: left; }
.ai-card__name { font-size: 1.15rem; font-weight: 700; color: var(--text-dark); }
.ai-card__role { font-size: .78rem; color: var(--text-dark-muted); margin-top: .15rem; }
.ai-card__features { display: flex; flex-direction: column; gap: .65rem; }
.ai-card__feat { display: flex; align-items: flex-start; gap: .6rem; font-size: .88rem; color: var(--text-dark-soft); line-height: 1.5; }
.ai-card__feat::before { content: '✦'; color: var(--primary); font-size: .6rem; margin-top: .4rem; flex-shrink: 0; }

/* ==================== Why Cards (delivery) ==================== */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin-top: 3rem; counter-reset: why; }
.why-card {
  counter-increment: why; position: relative; overflow: hidden;
  padding: 2.5rem 2rem; background: var(--white);
  border-radius: 16px; border: 1px solid var(--gray-200);
  box-shadow: 0 4px 16px rgba(0,0,0,.04); transition: all .3s;
}
.why-card::before { content: ''; position: absolute; inset: 0 0 auto 0; height: 4px; background: linear-gradient(90deg, rgba(214,0,15,.85), rgba(214,0,15,.35)); opacity: .9; }
.why-card::after { content: '0' counter(why); position: absolute; right: 1.25rem; top: 1.2rem; font-size: .8rem; font-weight: 800; color: var(--gray-300); letter-spacing: .08em; }
.why-card:hover { border-color: var(--primary); box-shadow: 0 16px 40px rgba(214,0,15,.08); transform: translateY(-4px); }
.why-card__icon {
  width: 56px; height: 56px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; background: var(--primary-soft);
  margin-bottom: 1.2rem; border: 1px solid var(--gray-200);
  color: var(--primary);
}
.why-card__title { font-size: 1.1rem; font-weight: 700; margin-bottom: .8rem; color: var(--text-dark); }
.why-card__text { font-size: .9rem; color: var(--text-dark-soft); line-height: 1.7; }

/* ==================== News (also used on homepage, duplicated for standalone load) ==================== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-top: 3rem; }
.news-card {
  display: flex; flex-direction: column; border-radius: 16px;
  background: var(--white); border: 1px solid var(--gray-200);
  overflow: hidden; transition: all .3s cubic-bezier(.16,1,.3,1);
  text-decoration: none; color: inherit;
}
.news-card:hover { border-color: var(--primary); box-shadow: 0 16px 48px rgba(214,0,15,.08), 0 4px 12px rgba(0,0,0,.04); transform: translateY(-4px); }
.news-card__image { position: relative; width: 100%; padding-top: 56.25%; background: var(--gray-100); overflow: hidden; }
.news-card__image img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.news-card__image--empty { display: flex; align-items: center; justify-content: center; color: var(--gray-400); }
.news-card__image--empty svg { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); }
.news-card__body { display: flex; flex-direction: column; flex: 1; padding: 1.25rem 1.5rem 1.5rem; }
.news-card__cat { display: inline-block; width: fit-content; font-size: .7rem; font-weight: 600; letter-spacing: .1em; color: var(--primary); padding: .2rem .6rem; border-radius: 4px; background: var(--primary-soft); margin-bottom: .6rem; }
.news-card__title { font-size: 1rem; font-weight: 700; line-height: 1.4; color: var(--text-dark); margin-bottom: .5rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card__excerpt { font-size: .85rem; color: var(--text-dark-soft); line-height: 1.7; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-card__footer { display: flex; align-items: center; justify-content: space-between; margin-top: .8rem; padding-top: .8rem; border-top: 1px solid var(--gray-100); }
.news-card__date { font-size: .78rem; color: var(--text-dark-muted); }
.news-card__more { font-size: .8rem; font-weight: 600; color: var(--primary); }
.news-card--skeleton { pointer-events: none; }
.news-card__image--skeleton { background: linear-gradient(90deg, #f0f2f5 25%, #e4e7ec 50%, #f0f2f5 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; }
.skeleton-line { height: .9rem; border-radius: 4px; background: linear-gradient(90deg, #f0f2f5 25%, #e4e7ec 50%, #f0f2f5 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; margin-bottom: .65rem; }
.skeleton-line--short { width: 30%; } .skeleton-line--med { width: 60%; } .skeleton-line--long { width: 90%; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* News Empty / Pagination */
.news-empty { text-align: center; padding: 4rem 0; color: var(--text-dark-muted); font-size: .95rem; }
.news-pagination { display: flex; justify-content: center; gap: .5rem; margin-top: 3rem; }

/* News Detail */
.news-detail { max-width: 780px; margin: 0 auto; padding: 2rem 0 4rem; }
.news-detail__meta { display: flex; gap: 1rem; align-items: center; margin-bottom: 2rem; color: var(--text-dark-muted); font-size: .85rem; }
.news-detail__content { font-size: 1rem; line-height: 1.9; color: var(--text-dark-soft); }
.news-detail__content h2, .news-detail__content h3 { color: var(--text-dark); margin: 2rem 0 1rem; }
.news-detail__content p { margin-bottom: 1.2rem; }
.news-detail__content img { border-radius: 12px; margin: 1.5rem 0; }

/* ==================== Article Detail ==================== */

/* Hero modifier for article page */
.page-hero--article { padding-bottom: 3rem; }
.page-hero--article .page-hero__inner { max-width: 840px; }

/* Breadcrumb */
.article-breadcrumb {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .88rem; font-weight: 500; color: var(--primary);
  text-decoration: none; margin-bottom: 1.8rem;
  transition: opacity .2s;
}
.article-breadcrumb:hover { opacity: .7; }
.article-breadcrumb svg { flex-shrink: 0; }

/* Article hero meta */
.article-hero-meta {
  display: flex; align-items: center; justify-content: center;
  gap: .6rem; flex-wrap: wrap;
  margin-bottom: 1.2rem; font-size: .85rem; color: var(--text-dark-muted);
}
.article-meta__cat {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .22rem .75rem; border-radius: 100px;
  font-size: .78rem; font-weight: 600;
  background: var(--primary-soft); color: var(--primary);
}
.article-meta__cat::before {
  content: ''; width: 5px; height: 5px; border-radius: 50%;
  background: var(--primary); flex-shrink: 0;
}
.article-hero-meta .article-meta__date,
.article-hero-meta .article-meta__read { color: var(--text-dark-muted); }
.article-hero-meta .article-meta__date::before {
  content: '·'; margin-right: .6rem; color: var(--gray-200);
}
.article-hero-meta .article-meta__read::before {
  content: '·'; margin-right: .6rem; color: var(--gray-200);
}

/* Article body wrapper */
.article-body-wrap {
  max-width: 780px; margin: 0 auto;
}

/* Featured image */
.article-featured { margin-bottom: 2.5rem; }
.article-featured img {
  width: 100%; height: auto; border-radius: 16px;
  box-shadow: 0 4px 24px rgba(0,0,0,.08);
}

/* Inline image figure (injected by JS) */
.article-inline-img {
  margin: 2rem 0; padding: 0;
}
.article-inline-img img {
  width: 100%; height: auto; border-radius: 12px;
  box-shadow: 0 2px 16px rgba(0,0,0,.06);
}
.article-inline-img figcaption {
  text-align: center; font-size: .82rem;
  color: var(--text-dark-muted); margin-top: .6rem;
}

/* Article content typography */
.article-content {
  font-size: 1.05rem; line-height: 1.95;
  color: var(--text-dark-soft); word-break: break-word;
}
.article-content h2 {
  font-size: 1.45rem; font-weight: 700;
  color: var(--text-dark); margin: 2.8rem 0 1rem;
  padding-bottom: .5rem;
  border-bottom: 2px solid var(--primary-soft);
}
.article-content h3 {
  font-size: 1.2rem; font-weight: 600;
  color: var(--text-dark); margin: 2.2rem 0 .8rem;
  padding-left: .8rem;
  border-left: 3px solid var(--primary);
}
.article-content h4 {
  font-size: 1.05rem; font-weight: 600;
  color: var(--text-dark); margin: 1.8rem 0 .6rem;
}
.article-content p { margin-bottom: 1.35rem; }
.article-content a {
  color: var(--primary); text-decoration: underline;
  text-underline-offset: 2px; text-decoration-color: rgba(214,0,15,.3);
  transition: text-decoration-color .2s;
}
.article-content a:hover { text-decoration-color: var(--primary); }
.article-content strong { color: var(--text-dark); font-weight: 600; }
.article-content img {
  max-width: 100%; height: auto; border-radius: 12px;
  margin: 1.5rem 0; box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.article-content blockquote {
  margin: 2rem 0; padding: 1.2rem 1.5rem;
  border-left: 4px solid var(--primary);
  background: var(--primary-soft); border-radius: 0 10px 10px 0;
  font-size: .98rem; color: var(--text-dark);
}
.article-content blockquote p:last-child { margin-bottom: 0; }
.article-content ul, .article-content ol {
  margin: 1.2rem 0; padding-left: 1.5rem;
}
.article-content li { margin-bottom: .5rem; }
.article-content ul li::marker { color: var(--primary); }
.article-content ol li::marker { color: var(--primary); font-weight: 600; }
.article-content pre {
  background: #1e1e2e; color: #cdd6f4; padding: 1.2rem 1.4rem;
  border-radius: 10px; overflow-x: auto; margin: 1.5rem 0;
  font-size: .88rem; line-height: 1.7;
}
.article-content code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: .88em;
}
.article-content :not(pre) > code {
  background: var(--primary-soft); color: var(--primary-dark);
  padding: .15rem .45rem; border-radius: 5px;
}
.article-content table {
  width: 100%; border-collapse: collapse; margin: 1.5rem 0;
  font-size: .92rem;
}
.article-content th, .article-content td {
  padding: .7rem .9rem; text-align: left;
  border-bottom: 1px solid var(--gray-200);
}
.article-content th {
  font-weight: 600; color: var(--text-dark);
  background: var(--gray-50);
}
.article-content hr {
  border: none; height: 1px;
  background: var(--gray-200); margin: 2.5rem 0;
}

/* Article footer (share) */
.article-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.5rem 0; margin-top: 2rem;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}
.article-footer__share {
  display: flex; align-items: center; gap: .6rem;
}
.article-footer__share-label {
  font-size: .85rem; font-weight: 500; color: var(--text-dark-muted);
}
.article-share-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--gray-200); background: var(--white);
  color: var(--text-dark-soft); cursor: pointer;
  transition: all .2s;
}
.article-share-btn:hover {
  border-color: var(--primary); color: var(--primary);
  background: var(--primary-soft);
}

/* Prev / Next navigation */
.article-nav {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1rem; margin-top: 2.5rem;
}
.article-nav__item {
  display: flex; flex-direction: column; gap: .35rem;
  padding: 1.2rem 1.4rem; border-radius: 12px;
  border: 1px solid var(--gray-200); background: var(--white);
  text-decoration: none; transition: all .25s;
}
.article-nav__item:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(214,0,15,.08);
  transform: translateY(-2px);
}
.article-nav__label {
  font-size: .78rem; font-weight: 600; letter-spacing: .04em;
  color: var(--text-dark-muted); text-transform: uppercase;
}
.article-nav__item--prev .article-nav__label::before { content: '← '; }
.article-nav__item--next .article-nav__label { text-align: right; }
.article-nav__item--next .article-nav__label::after { content: ' →'; }
.article-nav__item--next { text-align: right; }
.article-nav__title {
  font-size: .92rem; font-weight: 500; color: var(--text-dark);
  line-height: 1.45;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.article-nav__item:hover .article-nav__title { color: var(--primary); }

/* Back to list */
.article-back-bottom {
  text-align: center; margin-top: 3rem; padding-bottom: 1rem;
}

/* ==================== Article Responsive ==================== */
@media (max-width: 768px) {
  .page-hero--article { padding: 7rem 0 2rem; }
  .article-body-wrap { padding: 0 .25rem; }
  .article-content { font-size: .97rem; }
  .article-content h2 { font-size: 1.25rem; }
  .article-content h3 { font-size: 1.1rem; }
  .article-nav { grid-template-columns: 1fr; }
  .article-nav__item--next { text-align: left; }
  .article-nav__item--next .article-nav__label { text-align: left; }
  .article-nav__item--next .article-nav__label::after { content: none; }
  .article-nav__item--next .article-nav__label::before { content: '→ '; }
  .article-hero-meta { font-size: .8rem; }
  .article-featured img { border-radius: 10px; }
}

/* ==================== Responsive ==================== */
@media (max-width: 1024px) {
  .ai-grid { grid-template-columns: repeat(2, 1fr); }
  .pilot-timeline { grid-template-columns: repeat(2, 1fr); }
  .pilot-timeline::before { display: none; }
  .metrics-panel__intro { grid-template-columns: 1fr; }
  .metrics-panel__summary { justify-self: start; }
  .metric-card { grid-template-columns: 72px minmax(0, 1fr); }
  .metric-card__note { grid-column: 2 / -1; max-width: none; }
  .loop-steps { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
  .loop__board { padding: .85rem; }
  .loop-steps { grid-template-columns: 1fr; }
  .loop-step { padding: 1rem .95rem; }
  .loop-step__desc { min-height: auto; }
  .pilot-timeline { grid-template-columns: 1fr; gap: 1.5rem; }
  .ai-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .metrics-panel { padding: .9rem; }
  .metrics-panel__intro { padding: .35rem .2rem 1rem; }
  .news-grid { grid-template-columns: 1fr; }
}