:root {
  --bg: #07111f;
  --bg-soft: #0a1628;
  --panel: rgba(14, 27, 45, 0.88);
  --panel-strong: rgba(12, 22, 38, 0.96);
  --panel-border: rgba(255, 255, 255, 0.08);
  --text: #eaf2ff;
  --muted: #aab7d1;
  --accent: #ff5a4f;
  --accent-2: #2bb3ff;
  --gold: #ffd166;
  --success: #73f0b8;
  --shadow: 0 14px 44px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Noto Sans TC', sans-serif;
  line-height: 1.6;
  background: radial-gradient(circle at top, #16345c 0%, #09111d 42%, #050913 100%);
  color: var(--text);
}

a {
  color: inherit;
}

.container {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.breaking-bar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  background: rgba(8, 14, 24, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.breaking-label {
  flex: 0 0 auto;
  background: linear-gradient(135deg, var(--accent), #ff8a5b);
  color: white;
  font-weight: 800;
  padding: 12px 18px;
  letter-spacing: 0.08em;
}

.ticker {
  min-width: 0;
  padding: 0 16px;
  white-space: nowrap;
  overflow: hidden;
  color: #dbe8ff;
}

.ticker span {
  display: inline-block;
  padding-left: 100%;
  animation: ticker 20s linear infinite;
}

@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-100%); }
}

.hero {
  position: relative;
  padding: 76px 0 118px;
  background:
    linear-gradient(135deg, rgba(255, 90, 79, 0.18), rgba(43, 179, 255, 0.12)),
    url('https://images.unsplash.com/photo-1516321318423-f06f85e504b3?auto=format&fit=crop&w=1600&q=80') center/cover;
}

.hero-small {
  padding: 58px 0 92px;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(3, 8, 15, 0.28), rgba(3, 8, 15, 0.82));
}

.hero-content {
  position: relative;
  z-index: 1;
}

.channel {
  display: inline-flex;
  margin: 0 0 14px;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  font-size: 14px;
  color: #dbe8ff;
  background: rgba(255, 255, 255, 0.06);
}

.hero h1 {
  margin: 0;
  font-size: clamp(34px, 6vw, 64px);
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.subtitle {
  max-width: 860px;
  margin-top: 16px;
  font-size: clamp(16px, 2.8vw, 19px);
  color: #d8e5ff;
}

.search-bar {
  margin-top: 24px;
  max-width: 760px;
}

.search-bar input {
  width: 100%;
  min-height: 54px;
  padding: 16px 18px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(8, 17, 31, 0.72);
  color: white;
  font-size: 16px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.hero-tags span,
.category-chip,
.story-source,
.feature-source,
.mini-meta,
.category-count {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 11px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}

.hero-tags span {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #f5f9ff;
}

.home-main,
.archive-layout,
.day-grid {
  margin-top: -60px;
  margin-bottom: 40px;
  position: relative;
  z-index: 2;
}

.home-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(280px, 1fr);
  gap: 18px;
  margin-bottom: 18px;
}

.feature-panel,
.stats-panel,
.section-block,
.category-panel,
.archive-card,
.headline-card {
  background: var(--panel);
  backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.feature-panel,
.section-block,
.category-panel,
.archive-card,
.headline-card {
  padding: 24px;
}

.feature-panel {
  background: linear-gradient(180deg, rgba(16, 30, 50, 0.95), rgba(11, 23, 39, 0.95));
}

.feature-panel h2,
.section-head h2,
.category-panel h3,
.archive-card h2,
.headline-card h3,
.mini-item h3 {
  margin: 0;
}

.feature-panel h2 {
  margin-top: 10px;
  font-size: clamp(24px, 4.2vw, 38px);
  line-height: 1.15;
}

.feature-panel p,
.archive-card p,
.headline-card p,
.category-desc,
.mini-item p,
.empty-state {
  color: var(--muted);
}

.original-text {
  margin: 8px 0 0;
  color: #84a8d3;
  font-size: 13px;
  line-height: 1.65;
}

.feature-panel p,
.category-desc,
.mini-item p,
.archive-card p,
.headline-card p {
  line-height: 1.75;
}

.section-kicker {
  margin-bottom: 10px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}

.feature-source {
  background: rgba(43, 179, 255, 0.14);
  color: #9edcff;
  width: fit-content;
}

.feature-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.primary-button,
.secondary-button,
.section-link,
.archive-link,
.headline-card a,
.mini-link,
.back-link,
.latest-banner a {
  text-decoration: none;
  font-weight: 700;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
}

.primary-button {
  background: linear-gradient(135deg, var(--accent), #ff8a5b);
  color: #fff;
}

.secondary-button {
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #dbe8ff;
  background: rgba(255, 255, 255, 0.05);
}

.stats-panel {
  padding: 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.stat-card {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.stat-label {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 14px;
}

.stat-card strong {
  display: block;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.15;
  word-break: break-word;
}

.section-block {
  margin-bottom: 18px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}

.section-link,
.archive-link,
.headline-card a,
.mini-link,
.back-link,
.latest-banner a {
  color: #8fd3ff;
}

.section-link:hover,
.archive-link:hover,
.headline-card a:hover,
.mini-link:hover,
.back-link:hover,
.latest-banner a:hover {
  text-decoration: underline;
}

.category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.category-chip {
  text-decoration: none;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #eaf2ff;
}

.category-chip span {
  color: #92cfff;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.category-panel-security {
  grid-column: 1 / -1;
}

.security-subgrid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.security-subpanel {
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(8, 17, 31, 0.42);
}

.security-subhead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.security-subhead h4 {
  margin: 0;
  font-size: 18px;
}

.security-subhead span {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(43, 179, 255, 0.14);
  color: #cfe9ff;
  font-size: 12px;
  font-weight: 700;
}

.category-panel {
  scroll-margin-top: 72px;
}

.category-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.category-panel h3 {
  font-size: 24px;
  line-height: 1.2;
}

.category-count {
  flex: 0 0 auto;
  background: rgba(115, 240, 184, 0.12);
  color: #9cf3c7;
}

.category-desc {
  margin: 0 0 18px;
  font-size: 15px;
}

.mini-list {
  display: grid;
  gap: 14px;
}

.mini-item {
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.mini-item:first-child {
  padding-top: 0;
  border-top: 0;
}

.mini-meta,
.story-source {
  width: fit-content;
  margin-bottom: 10px;
  background: rgba(43, 179, 255, 0.12);
  color: #98ddff;
}

.mini-item h3 {
  font-size: 18px;
  line-height: 1.35;
  margin-bottom: 8px;
}

.mini-item p {
  margin: 8px 0 0;
  font-size: 15px;
}

.archive-section .latest-banner {
  margin: 0;
}

.archive-list,
.day-grid {
  display: grid;
  gap: 18px;
}

.latest-banner {
  padding: 14px 16px;
  background: rgba(255, 209, 102, 0.12);
  border: 1px solid rgba(255, 209, 102, 0.24);
  border-radius: 16px;
  color: #ffe9a6;
}

.archive-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: center;
}

.archive-date {
  font-size: 14px;
  color: var(--gold);
  margin-bottom: 6px;
  font-weight: 700;
}

.archive-card h2,
.headline-card h3 {
  margin-bottom: 10px;
}

.headline-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
}

.headline-body {
  min-width: 0;
}

.rank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  height: 58px;
  background: linear-gradient(135deg, var(--accent), #ff8a5b);
  color: white;
  font-weight: 800;
  border-radius: 18px;
  box-shadow: 0 10px 24px rgba(255, 90, 79, 0.32);
}

.empty-state {
  padding: 24px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 18px;
}

.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0 36px;
  color: #93a7c7;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

@media (max-width: 980px) {
  .home-main,
  .archive-layout,
  .day-grid {
    margin-top: -42px;
  }

  .home-grid,
  .category-grid {
    grid-template-columns: 1fr;
  }

  .security-subgrid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100%, calc(100% - 24px));
  }

  .hero {
    padding: 56px 0 92px;
  }

  .hero-small {
    padding: 46px 0 78px;
  }

  .feature-panel,
  .section-block,
  .category-panel,
  .archive-card,
  .headline-card {
    padding: 18px;
    border-radius: 20px;
  }

  .feature-actions {
    flex-direction: column;
  }

  .primary-button,
  .secondary-button {
    width: 100%;
  }

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

  .archive-card,
  .headline-card {
    grid-template-columns: 1fr;
  }

  .rank {
    min-width: 46px;
    height: 46px;
    border-radius: 14px;
  }

  .category-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

  .category-nav::-webkit-scrollbar {
    display: none;
  }

  .category-chip {
    white-space: nowrap;
  }
}

@media (max-width: 560px) {
  .breaking-bar {
    align-items: stretch;
  }

  .breaking-label {
    padding: 10px 14px;
    font-size: 12px;
  }

  .ticker {
    padding: 10px 12px;
    font-size: 13px;
  }

  .ticker span {
    padding-left: 0;
    animation: none;
  }

  .hero-tags {
    gap: 8px;
  }

  .hero-tags span,
  .category-chip,
  .story-source,
  .feature-source,
  .mini-meta,
  .category-count {
    font-size: 12px;
    padding: 6px 10px;
  }

  .search-bar input {
    min-height: 50px;
    font-size: 15px;
  }

  .stats-panel {
    grid-template-columns: 1fr 1fr;
    padding: 14px;
  }

  .stat-card {
    padding: 14px;
  }

  .category-panel h3 {
    font-size: 21px;
  }

  .mini-item h3 {
    font-size: 17px;
  }

  .footer {
    padding-bottom: 28px;
  }
}

.topic-hub {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}

.topic-hub-card {
  display: block;
  padding: 22px;
  border-radius: 24px;
  text-decoration: none;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
}

.topic-hub-card h3 { margin: 10px 0 8px; }
.topic-hub-card p { margin: 0 0 10px; color: var(--muted); }
.topic-hub-top, .topic-hub-meta { display:flex; justify-content:space-between; gap:12px; align-items:center; }
.topic-hub-label, .topic-badge {
  display:inline-flex; align-items:center; padding:6px 10px; border-radius:999px; font-size:12px; font-weight:800;
  background: rgba(255,255,255,0.08); border:1px solid rgba(255,255,255,0.12);
}
.topic-hub-count { color: #dbe8ff; font-size: 13px; }
.topic-badge-inline { margin: 8px 0 4px; }
.theme-ai .topic-hub-card.theme-ai,
.theme-ai .topic-badge,
.theme-ai .category-chip[href="#models"] { border-color: rgba(104, 144, 255, 0.45); box-shadow: inset 0 0 0 1px rgba(104, 144, 255, 0.12); }
.theme-security .topic-hub-card.theme-security,
.theme-security .topic-badge,
.category-panel-security { border-color: rgba(255, 90, 79, 0.35); }
.theme-startups .topic-hub-card.theme-startups,
.theme-startups .topic-badge,
.category-panel-startup { border-color: rgba(255, 209, 102, 0.35); }
.topic-hub-card.is-active { transform: translateY(-2px); }
.startup-subgrid, .security-subgrid { display:grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }

@media (max-width: 900px) {
  .topic-hub,
  .startup-subgrid,
  .security-subgrid { grid-template-columns: 1fr; }
}