.sr-only {
  position: absolute;
  overflow: hidden;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  border: 0;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.aihot-page {
  background:
    radial-gradient(circle at 82% 4%, rgba(138, 77, 255, 0.14), transparent 28vw),
    radial-gradient(circle at 14% 18%, rgba(0, 200, 200, 0.12), transparent 30vw),
    linear-gradient(180deg, #fff 0%, #f7f9ff 58%, #fff 100%);
}

.aihot-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.5fr);
  gap: clamp(40px, 8vw, 110px);
  width: min(calc(100% - var(--gutter) * 2), var(--max));
  min-height: 78vh;
  margin: 0 auto;
  padding: 166px 0 92px;
  align-items: center;
}

.aihot-hero::before {
  position: absolute;
  inset: 116px -6vw 40px;
  z-index: -1;
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(40, 120, 255, 0.07) 1px, transparent 1px),
    linear-gradient(rgba(242, 53, 141, 0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 68% 42%, #000, transparent 74%);
  content: "";
}

.aihot-hero h1 {
  max-width: 820px;
  font-size: clamp(60px, 8.5vw, 132px);
  font-weight: 950;
  letter-spacing: -0.06em;
  line-height: 0.88;
}

.aihot-hero-copy > p:not(.section-label) {
  max-width: 720px;
  margin-top: 30px;
  color: var(--muted);
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: 1.85;
}

.aihot-source {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 30px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.aihot-source a {
  color: var(--blue);
}

.source-pulse {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 7px rgba(0, 200, 200, 0.12);
  animation: source-pulse 2s ease-in-out infinite;
}

.aihot-hero-signal {
  position: relative;
  display: grid;
  min-height: 360px;
  place-content: center;
  border: 1px solid rgba(40, 120, 255, 0.18);
  border-radius: 50%;
  background:
    radial-gradient(circle at 44% 36%, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.64) 42%, rgba(40, 120, 255, 0.08) 72%),
    var(--gradient);
  box-shadow: 0 36px 90px rgba(62, 74, 140, 0.18);
  text-align: center;
}

.aihot-hero-signal span,
.aihot-hero-signal p {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.aihot-hero-signal strong {
  display: block;
  margin: 4px 0;
  font-size: clamp(76px, 10vw, 128px);
  font-weight: 950;
  letter-spacing: -0.08em;
  line-height: 1;
}

.signal-orbit {
  position: absolute;
  inset: -16px;
  border: 1px dashed rgba(40, 120, 255, 0.28);
  border-radius: 50%;
  animation: orbit 20s linear infinite;
}

.signal-orbit::after {
  position: absolute;
  top: 16%;
  right: 7%;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--magenta);
  box-shadow: 0 0 22px rgba(242, 53, 141, 0.72);
  content: "";
}

.aihot-daily,
.aihot-feed {
  width: min(calc(100% - var(--gutter) * 2), var(--max));
  margin: 0 auto;
  padding: clamp(70px, 9vw, 120px) 0;
}

.aihot-daily {
  border-top: 1px solid var(--line);
}

.aihot-section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
}

.aihot-section-head h2 {
  font-size: clamp(42px, 5vw, 76px);
  font-weight: 950;
  letter-spacing: -0.04em;
  line-height: 1;
}

.aihot-section-head > p {
  color: var(--quiet);
  font-size: 13px;
  font-weight: 800;
  text-align: right;
}

.daily-card {
  position: relative;
  overflow: hidden;
  min-height: 320px;
  margin-top: 44px;
  padding: clamp(28px, 5vw, 58px);
  border: 1px solid rgba(40, 120, 255, 0.18);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 86% 12%, rgba(242, 53, 141, 0.14), transparent 32%),
    radial-gradient(circle at 10% 88%, rgba(0, 200, 200, 0.13), transparent 30%),
    rgba(255, 255, 255, 0.84);
  box-shadow: var(--shadow);
}

.daily-card h3 {
  max-width: 920px;
  font-size: clamp(30px, 4vw, 58px);
  letter-spacing: -0.04em;
  line-height: 1.06;
}

.daily-lead {
  max-width: 920px;
  margin-top: 20px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.daily-sections {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.daily-sections span {
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
}

.daily-link {
  display: inline-flex;
  margin-top: 34px;
  color: var(--blue);
  font-weight: 900;
}

.daily-loading {
  display: grid;
  gap: 18px;
}

.daily-loading span,
.news-skeleton::before,
.news-skeleton::after {
  display: block;
  height: 24px;
  border-radius: 4px;
  background: linear-gradient(90deg, rgba(16, 17, 22, 0.06), rgba(40, 120, 255, 0.12), rgba(16, 17, 22, 0.06));
  background-size: 220% 100%;
  content: "";
  animation: shimmer 1.5s linear infinite;
}

.daily-loading span:first-child {
  width: 34%;
  height: 52px;
}

.daily-loading span:nth-child(2) {
  width: 84%;
}

.daily-loading span:nth-child(3) {
  width: 64%;
}

.aihot-feed {
  width: 100%;
  max-width: none;
  padding-right: var(--gutter);
  padding-left: var(--gutter);
  background: rgba(248, 250, 255, 0.72);
  border-top: 1px solid var(--line);
}

.aihot-feed > * {
  width: min(100%, var(--max));
  margin-right: auto;
  margin-left: auto;
}

.feed-toolbar {
  display: grid;
  grid-template-columns: auto minmax(360px, 1fr) minmax(260px, 0.64fr);
  gap: 12px;
  margin-top: 42px;
}

.filter-group {
  display: flex;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
}

.filter-group button,
.feed-search button,
.load-more {
  border: 0;
  font: inherit;
  cursor: pointer;
}

.filter-group button {
  padding: 9px 13px;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
  white-space: nowrap;
}

.filter-group button:hover,
.filter-group button:focus-visible,
.filter-group button.is-active {
  background: var(--ink);
  color: #fff;
}

.feed-search {
  display: grid;
  grid-template-columns: 1fr auto;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
}

.feed-search input {
  min-width: 0;
  padding: 0 16px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
}

.feed-search button {
  padding: 0 18px;
  background: var(--gradient);
  color: #fff;
  font-size: 13px;
  font-weight: 900;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 30px;
}

.news-card,
.news-skeleton,
.news-empty {
  min-height: 300px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 16px 46px rgba(34, 47, 92, 0.06);
}

.news-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 26px;
  transition: transform 180ms var(--ease), border-color 180ms ease, box-shadow 180ms ease;
}

.news-card:hover {
  border-color: rgba(40, 120, 255, 0.3);
  box-shadow: 0 22px 58px rgba(34, 47, 92, 0.11);
  transform: translateY(-3px);
}

.news-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--quiet);
  font-size: 12px;
  font-weight: 850;
}

.news-category {
  color: var(--blue);
}

.news-card h3 {
  margin-top: 20px;
  font-size: clamp(24px, 2.4vw, 36px);
  letter-spacing: -0.03em;
  line-height: 1.14;
}

.news-card > p {
  display: -webkit-box;
  overflow: hidden;
  margin-top: 16px;
  color: var(--muted);
  line-height: 1.75;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
}

.news-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.news-links a {
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.news-links a:last-child {
  color: var(--muted);
}

.news-skeleton {
  display: grid;
  gap: 18px;
  padding: 26px;
}

.news-skeleton::before {
  width: 76%;
  height: 54px;
}

.news-skeleton::after {
  width: 94%;
  height: 94px;
}

.news-empty {
  grid-column: 1 / -1;
  display: grid;
  min-height: 260px;
  padding: 36px;
  place-content: center;
  text-align: center;
}

.news-empty h3 {
  font-size: 28px;
}

.news-empty p {
  max-width: 560px;
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.7;
}

.news-empty a {
  display: inline-flex;
  justify-self: center;
  margin-top: 18px;
  color: var(--blue);
  font-weight: 900;
}

.feed-footer {
  display: grid;
  justify-items: center;
  gap: 24px;
  margin-top: 34px;
  text-align: center;
}

.feed-footer p {
  color: var(--quiet);
  font-size: 12px;
}

.feed-footer a {
  color: var(--blue);
  font-weight: 850;
}

.load-more {
  min-width: 160px;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-weight: 900;
}

.load-more:disabled {
  cursor: wait;
  opacity: 0.55;
}

@keyframes source-pulse {
  50% {
    box-shadow: 0 0 0 12px rgba(0, 200, 200, 0);
  }
}

@keyframes orbit {
  to {
    transform: rotate(360deg);
  }
}

@keyframes shimmer {
  to {
    background-position: -220% 0;
  }
}

@media (max-width: 1040px) {
  .feed-toolbar {
    grid-template-columns: 1fr;
  }

  .filter-group {
    width: fit-content;
    max-width: 100%;
  }

  .category-filters {
    overflow-x: auto;
  }

  .feed-search {
    min-height: 48px;
  }
}

@media (max-width: 920px) {
  .aihot-hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 128px;
  }

  .aihot-hero-signal {
    min-height: 320px;
    width: min(100%, 360px);
    justify-self: center;
  }

  .aihot-section-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .aihot-section-head > p {
    text-align: left;
  }

  .news-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .aihot-hero {
    width: min(calc(100% - 28px), var(--max));
    padding-bottom: 72px;
  }

  .aihot-hero h1 {
    font-size: clamp(58px, 20vw, 88px);
  }

  .aihot-hero-signal {
    min-height: 286px;
  }

  .aihot-daily {
    width: min(calc(100% - 28px), var(--max));
  }

  .daily-card {
    min-height: 280px;
  }

  .filter-group {
    border-radius: var(--radius);
  }

  .filter-group button {
    flex: 0 0 auto;
  }

  .feed-search {
    border-radius: var(--radius);
  }

  .news-card {
    min-height: 320px;
    padding: 22px;
  }
}