/* ==================== 翼讯优首页专属样式 (home.css) ==================== */
/* 依赖 base.css · 仅包含首页独有的组件 */

/* ==================== Hero ==================== */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  background: var(--white); overflow: hidden; padding: 0;
}
.hero__bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 75% 20%, rgba(214,0,15,.05) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(214,0,15,.03) 0%, transparent 50%),
    linear-gradient(180deg, #fff 0%, var(--gray-50) 100%);
}
.hero .container { position: relative; z-index: 2; }
.hero__layout {
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center; gap: 4rem;
  min-height: 100vh; padding: 8rem 0 4rem;
}
.hero__content { max-width: 560px; }
.hero__badge {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .4rem 1rem; background: var(--primary-soft);
  border: 1px solid rgba(214,0,15,.12); border-radius: 100px;
  font-size: .75rem; color: var(--primary); font-weight: 500;
  margin-bottom: 2.5rem; letter-spacing: .04em;
}
.hero__badge-dot { width: 6px; height: 6px; background: var(--primary); border-radius: 50%; }
.hero__title { color: var(--text-dark); font-size: 3.2rem; line-height: 1.25; letter-spacing: -.02em; }
.hero__title em { font-style: normal; color: var(--primary); }
.hero__subtitle { color: var(--text-dark-soft); margin-top: 1.8rem; max-width: 480px; font-size: .95rem; line-height: 1.9; }
.hero__highlight { color: var(--text-dark); font-weight: 600; }
.hero__actions { display: flex; gap: 1rem; margin-top: 2.8rem; flex-wrap: wrap; }
.hero .btn--primary { box-shadow: 0 4px 16px rgba(214,0,15,.2); }
.hero .btn--primary:hover { box-shadow: 0 6px 24px rgba(214,0,15,.3); }
.hero__stats {
  display: flex; gap: 3.5rem; margin-top: 4rem;
  padding-top: 2.5rem; border-top: 1px solid var(--border-medium);
}
.hero__stat-value {
  font-size: 2.2rem; font-weight: 700; color: var(--primary);
  font-family: 'DM Sans', sans-serif; line-height: 1;
}
.hero__stat-value span { font-size: .9rem; font-weight: 400; color: var(--text-dark-muted); margin-left: .15rem; }
.hero__stat-label { font-size: .78rem; color: var(--text-dark-muted); margin-top: .5rem; letter-spacing: .02em; }
.hero__visual { position: relative; display: flex; align-items: center; justify-content: center; }

/* ---- Product Mockup ---- */
.mockup {
  width: min(100%, 480px); border-radius: 16px;
  background: var(--white); border: 1px solid var(--gray-200);
  overflow: hidden; font-size: .78rem; color: var(--text-dark-soft);
  user-select: none; box-shadow: 0 24px 64px rgba(0,0,0,.08), 0 8px 24px rgba(0,0,0,.04);
}
.mockup__bar {
  display: flex; align-items: center; gap: .75rem;
  padding: .65rem 1rem; background: var(--gray-50); border-bottom: 1px solid var(--border-medium);
}
.mockup__dots { display: flex; gap: 5px; }
.mockup__dots i { width: 8px; height: 8px; border-radius: 50%; }
.mockup__dots i:first-child { background: var(--primary); }
.mockup__dots i:nth-child(2) { background: var(--gray-300); }
.mockup__dots i:last-child { background: var(--gray-300); }
.mockup__bar-title { font-weight: 600; font-size: .76rem; color: var(--text-dark); }
.mockup__bar-right { margin-left: auto; display: flex; align-items: center; gap: .35rem; font-size: .68rem; color: var(--text-dark-muted); }
.mockup__status-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }
.mockup__kpi-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border-medium); }
.mockup__kpi { padding: .85rem .9rem; background: var(--white); text-align: center; }
.mockup__kpi-label { font-size: .65rem; color: var(--text-dark-muted); margin-bottom: .35rem; }
.mockup__kpi-val { font-size: 1.5rem; font-weight: 700; color: var(--text-dark); font-family: 'DM Sans', sans-serif; }
.mockup__kpi-val span { font-size: .72rem; font-weight: 500; color: var(--text-dark-muted); margin-left: .1rem; }
.mockup__body { display: grid; grid-template-columns: 1.2fr 1fr; gap: 1px; background: var(--border-medium); }
.mockup__chart-card, .mockup__action-card { background: var(--white); padding: .85rem .9rem; }
.mockup__card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: .65rem; font-size: .72rem; font-weight: 600; color: var(--text-dark); }
.mockup__card-tag { font-size: .6rem; font-weight: 500; color: var(--primary); padding: .18rem .5rem; border-radius: 4px; background: var(--primary-soft); }
.mockup__card-badge { font-size: .6rem; font-weight: 600; color: var(--primary); padding: .18rem .5rem; border-radius: 4px; background: var(--primary-soft); }
.mockup__chart-svg { width: 100%; height: 80px; display: block; }
.mockup__chart-labels { display: flex; justify-content: space-between; margin-top: .3rem; font-size: .58rem; color: var(--text-dark-muted); }
.mockup__actions-list { display: flex; flex-direction: column; gap: .45rem; }
.mockup__action-item { display: flex; align-items: flex-start; gap: .5rem; padding: .45rem .5rem; border-radius: 8px; background: var(--gray-50); border: 1px solid var(--border-medium); }
.mockup__action-dot { width: 6px; height: 6px; border-radius: 50%; margin-top: .35rem; flex-shrink: 0; }
.mockup__action-dot--warn { background: var(--primary); opacity: .5; }
.mockup__action-dot--alert { background: var(--primary); }
.mockup__action-dot--ok { background: var(--gray-400); }
.mockup__action-text { font-size: .68rem; line-height: 1.45; color: var(--text-dark-soft); }
.mockup__action-sub { color: var(--text-dark-muted); font-size: .62rem; margin-top: .1rem; }
.mockup__footer { display: flex; gap: .4rem; padding: .55rem .9rem; background: var(--gray-50); border-top: 1px solid var(--border-medium); }
.mockup__ai-tag { display: inline-flex; align-items: center; gap: .25rem; padding: .2rem .5rem; border-radius: 4px; background: var(--primary-soft); border: 1px solid rgba(214,0,15,.08); font-size: .6rem; font-weight: 500; color: var(--primary); white-space: nowrap; }
.mockup__ai-icon { font-size: .55rem; }

/* ==================== Metrics section ==================== */
.section--bg-metrics {
  position: relative;
  background: var(--gray-50);
  overflow: hidden;
}
.section--bg-metrics::before { display: none; }
.section--bg-metrics > .container { position: relative; z-index: 2; }
.section--bg-metrics .heading-lg::after { background: var(--primary); }

/* ==================== Pain Points (homepage) ==================== */
.pain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-top: 3rem; }
.pain-card {
  position: relative; padding: 2rem 1.75rem; background: var(--white);
  border: 1px solid var(--gray-200); border-radius: 16px;
  transition: all .3s cubic-bezier(.16,1,.3,1);
}
.pain-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);
}
.pain-card__icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 1.2rem;
}
.pain-card__icon--red, .pain-card__icon--orange, .pain-card__icon--yellow,
.pain-card__icon--sky, .pain-card__icon--violet, .pain-card__icon--emerald { background: var(--primary-soft); }
.pain-card__title { font-size: .95rem; font-weight: 700; margin-bottom: .5rem; color: var(--text-dark); line-height: 1.4; }
.pain-card__text { font-size: .85rem; color: var(--text-dark-soft); line-height: 1.7; }

/* ==================== Product Tabs ==================== */
.product-tabs { display: flex; justify-content: center; gap: .5rem; margin-top: 3rem; }
.product-tab {
  background: none; border: none; cursor: pointer;
  padding: .7rem 1.8rem; font-size: .9rem; font-weight: 500;
  color: var(--text-dark-muted); position: relative; transition: all .2s;
  font-family: inherit; border-radius: 30px; border: 1px solid var(--border-medium);
}
.product-tab:hover { color: var(--text-dark); border-color: var(--gray-400); }
.product-tab--active { color: var(--white); background: var(--primary); border-color: var(--primary); }
.product-tab--active::after { display: none; }
.product-panels { margin-top: 3rem; }
.product-panel { display: none; animation: fadeIn .4s ease; }
.product-panel--active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.product-panel__layout { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.product-panel__content h3 { font-size: 1.5rem; font-weight: 700; color: var(--text-dark); margin-bottom: 1rem; }
.product-panel__content p { font-size: .95rem; color: var(--text-dark-soft); line-height: 1.8; margin-bottom: 1.5rem; }
.product-panel__tags { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.5rem; }
.product-panel__tag { padding: .4rem .9rem; border-radius: 100px; background: var(--primary-soft); border: 1px solid rgba(214,0,15,.08); color: var(--primary); font-size: .8rem; font-weight: 500; }
.product-panel__visual { display: flex; align-items: center; justify-content: center; }
.product-panel__card { width: 100%; padding: 2.5rem; border-radius: 16px; background: var(--gray-50); border: 1px solid rgba(214,0,15,.08); text-align: center; }
.product-panel__card-num { font-size: 3.5rem; font-weight: 700; font-family: 'DM Sans', sans-serif; color: var(--primary); line-height: 1; }
.product-panel__card-label { font-size: .9rem; color: var(--text-dark-muted); margin-top: .75rem; }
.product-panel__features { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.5rem; }
.product-panel__feat { display: flex; align-items: flex-start; gap: .5rem; padding: 1rem; border-radius: 12px; background: var(--white); border: 1px solid var(--border-medium); transition: all .2s; }
.product-panel__feat:hover { border-color: rgba(214,0,15,.15); box-shadow: 0 4px 12px rgba(214,0,15,.06); }
.product-panel__feat-icon { width: 20px; height: 20px; flex-shrink: 0; color: var(--primary); margin-top: .1rem; }
.product-panel__feat-text { font-size: .85rem; color: var(--text-dark-soft); line-height: 1.5; }

/* ==================== Three Steps ==================== */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 3rem; }
.step-card {
  position: relative; padding: 2.5rem 2rem; background: var(--white);
  border: 1px solid var(--gray-200); border-radius: 16px;
  transition: all .3s cubic-bezier(.16,1,.3,1); overflow: hidden;
}
.step-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--primary); opacity: 0; transition: opacity .25s; }
.step-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: 0 16px 48px rgba(214,0,15,.08), 0 4px 12px rgba(0,0,0,.04); }
.step-card:hover::before { opacity: 1; }
.step-card__num { font-size: .72rem; font-weight: 700; color: var(--primary); letter-spacing: .1em; margin-bottom: 1.2rem; font-family: 'DM Sans', sans-serif; }
.step-card__icon { width: 48px; height: 48px; border-radius: 10px; display: flex; align-items: center; justify-content: center; background: var(--primary-soft); margin-bottom: 1.2rem; }
.step-card__icon svg { stroke: var(--primary); }
.step-card__title { font-size: 1.05rem; font-weight: 700; margin-bottom: .7rem; color: var(--text-dark); }
.step-card__text { font-size: .88rem; color: var(--text-dark-soft); line-height: 1.7; }

/* ==================== Metrics (glass cards on red bg) ==================== */
.metrics-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-top: 3rem; }
.metric-item {
  padding: 2rem; border-radius: 12px;
  background: var(--white); border: 1px solid var(--gray-200);
  text-align: center; transition: all .25s;
}
.metric-item:hover { border-color: var(--primary); box-shadow: 0 8px 32px rgba(214,0,15,.06); transform: translateY(-3px); }
.metric-item__val { font-size: 2.5rem; font-weight: 700; font-family: 'DM Sans', sans-serif; color: var(--primary); line-height: 1; }
.metric-item__val span { font-size: 1rem; font-weight: 500; color: var(--text-dark-muted); }
.metric-item__label { font-size: .88rem; color: var(--text-dark); margin-top: .5rem; font-weight: 600; }
.metric-item__desc { font-size: .8rem; color: var(--text-dark-muted); margin-top: .4rem; line-height: 1.6; }

/* ==================== News ==================== */
.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; } }

/* ==================== Responsive (homepage only) ==================== */
@media (max-width: 1024px) {
  .hero__layout { grid-template-columns: 1fr; }
  .hero__content { max-width: 100%; }
  .mockup { max-width: 520px; margin: 0 auto; }
  .product-panel__layout { grid-template-columns: 1fr; gap: 2rem; }
  .product-panel__features { grid-template-columns: 1fr; }
  .metrics-row { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .hero__layout { padding: 7rem 0 3rem; }
  .pain-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .metrics-row { grid-template-columns: 1fr; }
  .product-tabs { flex-wrap: wrap; gap: .3rem; }
  .product-tab { padding: .6rem 1.1rem; font-size: .82rem; }
  .hero__stats { flex-direction: column; gap: 1.5rem; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { text-align: center; justify-content: center; }
  .mockup__body { grid-template-columns: 1fr; }
  .mockup__footer { flex-wrap: wrap; gap: .3rem; }
  .news-grid { grid-template-columns: 1fr; }
}