:root {
  color-scheme: dark;
  --ink: #060707;
  --panel: rgba(18, 20, 19, 0.84);
  --panel-solid: #121413;
  --line: rgba(232, 244, 222, 0.12);
  --text: #edf3e8;
  --muted: #9fa995;
  --signal: #d8ff3e;
  --signal-dark: #a9cc20;
  --coral: #ff5b42;
  --cyan: #58e5d2;
  --mono: "Cascadia Code", "Consolas", ui-monospace, SFMono-Regular, monospace;
  --body: "Segoe UI Variable Text", "Segoe UI", system-ui, sans-serif;
  --display: "Segoe UI Variable Display", "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--ink);
  color: var(--text);
  font-family: var(--body);
  overflow-x: hidden;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.scan-grid {
  position: absolute;
  inset: -50%;
  background:
    linear-gradient(rgba(216, 255, 62, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(216, 255, 62, 0.05) 1px, transparent 1px);
  background-size: 42px 42px;
  transform: perspective(500px) rotateX(45deg) translateY(-22%);
  mask-image: radial-gradient(circle at 50% 18%, black 0%, transparent 58%);
}

.signal-orb {
  position: absolute;
  width: 54vw;
  height: 54vw;
  left: -14vw;
  top: -18vw;
  background:
    radial-gradient(circle at 50% 50%, rgba(216, 255, 62, 0.15), transparent 64%),
    radial-gradient(circle at 68% 42%, rgba(88, 229, 210, 0.09), transparent 46%);
  filter: blur(24px);
}

.noise {
  position: absolute;
  inset: 0;
  opacity: 0.22;
  background-image: radial-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 4px 4px;
  mix-blend-mode: overlay;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 72px;
  padding: 0 clamp(18px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background: rgba(6, 7, 7, 0.82);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-family: var(--display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.brand span:last-child span {
  color: var(--signal);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  border: 1px solid rgba(216, 255, 62, 0.5);
  color: var(--signal);
  font-size: 18px;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.nav-link {
  min-height: 38px;
  padding: 0 14px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: 500 14px/1 var(--body);
  cursor: pointer;
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--text);
  background: rgba(237, 243, 232, 0.07);
}

.saved-count {
  display: inline-grid;
  place-items: center;
  min-width: 21px;
  height: 21px;
  margin-left: 7px;
  border-radius: 999px;
  background: var(--signal);
  color: #101204;
  font: 600 11px/1 var(--mono);
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font: 500 12px/1 var(--mono);
  white-space: nowrap;
}

.language-switch {
  display: flex;
  gap: 3px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(237, 243, 232, 0.05);
}

.lang-button {
  min-height: 30px;
  padding: 0 11px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: 600 12px/1 var(--mono);
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease;
}

.lang-button:hover {
  color: var(--text);
}

.lang-button.is-selected {
  background: var(--signal);
  color: #101204;
}

.pulse,
.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 0 rgba(216, 255, 62, 0.65);
  animation: pulse 2.2s infinite;
}

@keyframes pulse {
  70% { box-shadow: 0 0 0 8px rgba(216, 255, 62, 0); }
  100% { box-shadow: 0 0 0 0 rgba(216, 255, 62, 0); }
}

main {
  width: min(1280px, calc(100% - clamp(24px, 8vw, 96px)));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 360px);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
  padding: clamp(44px, 6vw, 84px) 0 42px;
}

/* 左列整块包住，否则 grid 会把 h1 排进右边那列（见 index.astro 注释） */
.hero-copy {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--signal);
  font: 600 11px/1.4 var(--mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0 0 20px;
  font-family: var(--display);
  font-size: clamp(38px, 6.3vw, 74px);
  line-height: 0.97;
  letter-spacing: -0.055em;
  font-weight: 800;
}

h1 em {
  font-style: normal;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--signal);
}

.lede {
  max-width: 640px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.65;
}

/* H1 是关键词（YouTube Niche Finder），真正的销售句降为副标题，
   这样 H1 与 Title 落在同一个词上，不再各说各的。 */
.hero-sub {
  max-width: 720px;
  margin: 0 0 18px;
  color: var(--text);
  font: 600 clamp(20px, 2.4vw, 30px) / 1.25 var(--display);
}

.hero-sub em {
  font-style: normal;
  color: var(--signal);
  -webkit-text-stroke: 1px var(--signal);
}

.entry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.entry-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
}

.entry-card h3 {
  margin: 0;
  font: 700 19px/1.3 var(--display);
}

.entry-card h3 a {
  color: var(--signal);
  text-decoration: none;
}

.entry-card h3 a:hover,
.entry-card h3 a:focus-visible {
  text-decoration: underline;
}

.entry-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.hero-meta {
  display: flex;
  gap: clamp(22px, 4vw, 48px);
  margin-top: 42px;
}

.hero-meta strong,
.hero-meta span {
  display: block;
}

.hero-meta strong {
  font: 700 clamp(23px, 3vw, 32px)/1 var(--display);
  letter-spacing: -0.04em;
}

.hero-meta span {
  margin-top: 6px;
  color: var(--muted);
  font: 500 12px/1.2 var(--mono);
}

.score-card {
  position: relative;
  padding: 24px;
  border: 1px solid rgba(216, 255, 62, 0.32);
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(216, 255, 62, 0.11), rgba(18, 20, 19, 0.94));
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.38);
}

.score-card {
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.score-card:hover {
  border-color: rgba(216, 255, 62, 0.62);
  transform: translateY(-2px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}

.score-card:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 4px;
}

.score-open {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.score-open-hint {
  color: var(--muted);
  font: 600 10px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: none;
  transition: color 0.18s ease;
}

.score-card:hover .score-open-hint {
  color: var(--signal);
}

.score-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--signal);
  font: 600 11px/1 var(--mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.score-value {
  margin: 24px 0 12px;
  font: 800 clamp(48px, 6vw, 66px)/0.9 var(--display);
  letter-spacing: -0.06em;
}

.score-title {
  min-height: 54px;
  margin: 0;
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
}

.score-title a {
  color: inherit;
  text-decoration: none;
}

.score-title a:hover {
  color: var(--signal);
}

.score-note {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.score-channel {
  margin: 10px 0 0;
  font: 500 12px/1.5 var(--mono);
}

.score-channel a {
  color: var(--signal);
  text-decoration: none;
}

.score-channel a:hover {
  text-decoration: underline;
}

.score-facts {
  display: flex;
  justify-content: space-between;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font: 500 11px/1 var(--mono);
}

.controls {
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.filter-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.chip-group {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.chip-group::-webkit-scrollbar {
  display: none;
}

/* 顶部大类筛选：换行铺开全部可见，不再横向滚动藏掉后面的项 */
#categoryFilters {
  flex: 1;
  min-width: 0;
  flex-wrap: wrap;
  overflow-x: visible;
}

/* 语言/市场筛选行：与内容大类筛选叠加生效，同为大类换行铺开的处理 */
.market-row {
  justify-content: flex-start;
  align-items: baseline;
  gap: 12px;
  margin-top: 10px;
}

.filter-row-label {
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

#marketFilters {
  flex: 1;
  min-width: 0;
  flex-wrap: wrap;
  overflow-x: visible;
}

.chip {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: 600 13px/1 var(--body);
  cursor: pointer;
  transition: 0.2s ease;
}

.chip:hover {
  color: var(--text);
  border-color: rgba(216, 255, 62, 0.35);
}

.chip.is-selected {
  border-color: var(--signal);
  background: var(--signal);
  color: #101204;
}

.sort-field {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font: 500 12px/1 var(--mono);
  white-space: nowrap;
}

.sort-field select {
  width: 210px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  outline: none;
  background: var(--panel-solid);
  color: var(--text);
  font: 500 13px/1 var(--body);
}

.sort-field select:focus-visible {
  border-color: var(--signal);
}

.result-line {
  margin: 18px 0;
  color: var(--muted);
  font: 500 12px/1 var(--mono);
}

.radar-list {
  display: grid;
  gap: 12px;
}

.signal {
  display: grid;
  grid-template-columns: 58px minmax(0, 1.35fr) minmax(0, 1fr) auto;
  gap: clamp(14px, 2.4vw, 30px);
  align-items: center;
  min-height: 120px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  animation: reveal 0.5s ease both;
}

@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.signal:hover {
  transform: translateY(-2px);
  border-color: rgba(216, 255, 62, 0.4);
  background: rgba(23, 26, 23, 0.9);
}

.signal:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

.rank {
  align-self: start;
  color: rgba(237, 243, 232, 0.24);
  font: 700 36px/1 var(--display);
  letter-spacing: -0.05em;
}

.signal-main {
  min-width: 0;
}

.signal-title {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0 0 12px;
  font: 700 clamp(18px, 2vw, 24px)/1.15 var(--display);
  letter-spacing: -0.04em;
}

.signal-channel {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font: 500 13px/1.2 var(--body);
}

.channel-avatar {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #1d201c;
  color: var(--signal);
  font: 600 11px/1 var(--mono);
}

.signal-tags {
  display: flex;
  gap: 6px;
  margin-top: 12px;
}

.tag {
  padding: 6px 8px;
  border-radius: 6px;
  background: rgba(216, 255, 62, 0.09);
  color: rgba(216, 255, 62, 0.88);
  font: 600 10px/1 var(--mono);
  text-transform: uppercase;
}

.tag.alt {
  background: rgba(88, 229, 210, 0.1);
  color: var(--cyan);
}

.tag.warn {
  background: rgba(255, 91, 66, 0.1);
  color: #ff8371;
}

/* 市场角标：与内容大类（青色）、时长/质量标记区分开 */
.tag.market {
  background: rgba(255, 196, 88, 0.1);
  color: #ffc458;
}

.signal-data {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  min-width: 260px;
}

.metric span {
  display: block;
  color: var(--muted);
  font: 500 10px/1.2 var(--mono);
  text-transform: uppercase;
}

.metric strong {
  display: block;
  margin-top: 5px;
  font: 700 18px/1 var(--display);
  letter-spacing: -0.03em;
}

.metric.multiplier strong {
  color: var(--signal);
  font-size: 24px;
}

/* 视图切换行（列表 / 每类前 10 榜单） */
.view-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 10px;
}

.view-row .chip-group {
  flex-wrap: nowrap;
}

.chip-group[hidden] {
  display: none;
}

.sort-field[hidden] {
  display: none;
}

/* 榜单行：紧凑排名表（每类前 10） */
.signal.board-row {
  grid-template-columns: 44px minmax(0, 1fr) repeat(4, auto) 44px;
  gap: clamp(12px, 2vw, 24px);
  min-height: 0;
  padding: 12px 18px;
  border-radius: 12px;
  animation: reveal 0.4s ease both;
}

.board-rank {
  align-self: start;
  color: rgba(216, 255, 62, 0.85);
  font: 700 18px/1.2 var(--mono);
}

.board-main {
  min-width: 0;
}

.board-title {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0 0 6px;
  font: 700 15px/1.3 var(--body);
  letter-spacing: -0.01em;
}

.board-channel {
  color: var(--muted);
  font: 500 12px/1.2 var(--body);
}

.board-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
}

.board-stat strong {
  font: 700 16px/1 var(--display);
  letter-spacing: -0.02em;
}

.board-stat.board-ratio strong {
  color: var(--signal);
  font-size: 20px;
}

.board-stat-label {
  color: var(--muted);
  font: 500 9px/1 var(--mono);
  text-transform: uppercase;
}

.board-actions {
  display: grid;
  place-items: center;
}

/* 跨市场对照视图：一列一个市场，列内是该赛道按爆发倍数取的前 N 名 */
.compare-note {
  margin: 0 0 14px;
  color: var(--muted);
  font: 500 13px/1.5 var(--body);
}

.compare-board {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 10px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
}

.compare-col {
  flex: 0 0 auto;
  width: 268px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  scroll-snap-align: start;
}

.compare-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.compare-market {
  margin: 0;
  font: 700 13px/1.2 var(--body);
}

.compare-count {
  color: var(--muted);
  font: 600 10px/1 var(--mono);
}

.compare-items {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.compare-item {
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.015);
  cursor: pointer;
  animation: reveal 0.4s ease both;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.compare-item:hover,
.compare-item:focus-visible {
  border-color: rgba(216, 255, 62, 0.4);
  transform: translateY(-1px);
}

.compare-item-head {
  display: flex;
  align-items: center;
  gap: 8px;
}

.compare-rank {
  color: rgba(216, 255, 62, 0.85);
  font: 700 12px/1 var(--mono);
}

.compare-kind {
  color: var(--cyan);
  font: 600 10px/1 var(--mono);
}

.compare-item .icon-button {
  margin-left: auto;
  width: 30px;
  height: 30px;
}

.compare-title {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 6px 0 4px;
  font: 600 13px/1.35 var(--body);
}

.compare-channel {
  color: var(--muted);
  font: 500 11px/1.2 var(--body);
}

.compare-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
  color: var(--muted);
  font: 600 10px/1 var(--mono);
}

.compare-ratio {
  color: var(--signal);
}

.signal-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.icon-button {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: 0.2s ease;
}

.icon-button:hover,
.icon-button.is-saved {
  border-color: var(--signal);
  color: var(--signal);
}

.icon-button svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.cta {
  min-height: 32px;
  padding: 0 12px;
  border: 0;
  border-radius: 999px;
  background: rgba(237, 243, 232, 0.08);
  color: var(--text);
  font: 600 11px/1 var(--mono);
  cursor: pointer;
}

.empty-state {
  padding: 70px 24px;
  border: 1px dashed var(--line);
  border-radius: 20px;
  text-align: center;
}

.empty-state h2 {
  margin: 0 0 10px;
  font: 700 28px/1 var(--display);
}

.empty-state p {
  max-width: 420px;
  margin: 0 auto;
  color: var(--muted);
  line-height: 1.6;
}

.product-notes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 52px 0 72px;
}

.product-notes article {
  min-height: 180px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(18, 20, 19, 0.55);
}

.product-notes span {
  color: var(--signal);
  font: 600 12px/1 var(--mono);
}

.product-notes h3 {
  margin: 32px 0 10px;
  font: 700 22px/1 var(--display);
  letter-spacing: -0.04em;
}

.product-notes p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.site-footer {
  width: min(1280px, calc(100% - clamp(24px, 8vw, 96px)));
  margin: 0 auto;
  padding: 28px 0 44px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font: 500 12px/1.8 var(--mono);
}

.site-footer p {
  margin: 0;
}

/* 页脚第二段：免责声明 + 隐私入口 */
.site-footer .footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  align-items: baseline;
  margin-top: 8px;
  color: rgba(159, 169, 149, 0.75);
}

.site-footer .footer-meta a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(216, 255, 62, 0.35);
}

.site-footer .footer-meta a:hover,
.site-footer .footer-meta a:focus-visible {
  border-bottom-color: var(--signal);
}

/* 隐私政策等纯文字页：与首页同一视觉语言，但只读不交互 */
.legal-page {
  width: min(760px, calc(100% - clamp(24px, 8vw, 96px)));
  margin: 0 auto;
  padding: 56px 0 24px;
  color: var(--text);
}

.legal-page h1 {
  margin: 0 0 12px;
  font-size: clamp(34px, 5vw, 54px);
}

.legal-page h2 {
  margin: 40px 0 10px;
  font: 700 20px/1.3 var(--display);
  letter-spacing: -0.03em;
}

.legal-page p {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.75;
}

.legal-page code {
  padding: 2px 6px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: 500 12px/1 var(--mono);
  color: var(--text);
}

.legal-updated {
  font: 500 12px/1.6 var(--mono);
  color: rgba(159, 169, 149, 0.75);
}

.legal-page a {
  color: var(--signal);
  text-decoration: none;
}

.legal-back {
  margin: 40px 0 72px !important;
}

.detail-root {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: minmax(0, 1fr) min(620px, 94vw);
  pointer-events: none;
  visibility: hidden;
}

.detail-root.is-open {
  pointer-events: auto;
  visibility: visible;
}

.detail-backdrop {
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.64);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.detail-root.is-open .detail-backdrop {
  opacity: 1;
}

.detail-panel {
  position: relative;
  height: 100vh;
  overflow-y: auto;
  padding: 56px clamp(22px, 4vw, 48px) 56px;
  border-left: 1px solid rgba(216, 255, 62, 0.24);
  background: rgba(8, 10, 8, 0.97);
  transform: translateX(100%);
  transition: transform 0.32s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.detail-root.is-open .detail-panel {
  transform: translateX(0);
}

.close-button {
  position: fixed;
  top: 22px;
  right: 22px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(8, 10, 8, 0.9);
  color: var(--text);
  cursor: pointer;
}

.detail-content {
  max-width: 510px;
}

.detail-label {
  color: var(--signal);
  font: 600 11px/1 var(--mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.detail-content h2 {
  margin: 18px 0 16px;
  font: 800 clamp(30px, 5vw, 46px)/1 var(--display);
  letter-spacing: -0.05em;
}

.detail-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 28px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.detail-meta div {
  padding: 17px 0;
}

.detail-meta div + div {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.detail-meta span {
  display: block;
  color: var(--muted);
  font: 500 10px/1 var(--mono);
  text-transform: uppercase;
}

.detail-meta strong {
  display: block;
  margin-top: 6px;
  font: 700 20px/1 var(--display);
}

.analysis-block {
  margin-top: 26px;
}

.analysis-block h3 {
  margin: 0 0 10px;
  font: 700 16px/1.2 var(--display);
  letter-spacing: -0.03em;
}

.analysis-block p,
.analysis-block li {
  color: rgba(237, 243, 232, 0.76);
  line-height: 1.65;
}

.analysis-block p {
  margin: 0;
}

.analysis-block ul {
  margin: 0;
  padding-left: 20px;
}

.analysis-list li + li {
  margin-top: 10px;
}

.external-link {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  margin-top: 32px;
  padding: 0 22px;
  border-radius: 999px;
  background: var(--signal);
  color: #101204;
  font: 700 13px/1 var(--body);
  text-decoration: none;
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
  }

  /* 窄屏下标题在前（DOM 顺序与视觉顺序一致），卡片跟在文案后面 */
  .score-card {
    max-width: 560px;
  }

  .signal {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .rank {
    display: none;
  }

  .signal-data {
    grid-column: 1 / -1;
    min-width: 0;
    padding-top: 15px;
    border-top: 1px solid var(--line);
  }

  .product-notes {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-header {
    gap: 12px;
  }

  .status-pill {
    display: none;
  }

  .filter-row {
    align-items: stretch;
    flex-direction: column;
  }

  .collapse-actions {
    justify-content: flex-end;
  }

  .view-row {
    align-items: stretch;
    flex-direction: column;
  }

  .sort-field {
    justify-content: space-between;
  }

  .signal.board-row {
    grid-template-columns: 30px minmax(0, 1fr) auto auto 36px;
    gap: 8px;
    padding: 12px 14px;
  }

  .board-row .board-stat:nth-of-type(3),
  .board-row .board-stat:nth-of-type(4) {
    display: none;
  }

  .board-row .board-stat strong {
    font-size: 14px;
  }

  .board-row .board-stat.board-ratio strong {
    font-size: 16px;
  }

  .sort-field select {
    flex: 1;
  }

  .signal {
    grid-template-columns: minmax(0, 1fr);
  }

  .signal-actions {
    position: absolute;
    right: 20px;
    top: 20px;
    flex-direction: row;
  }

  .signal {
    position: relative;
  }

  .cta {
    display: none;
  }

  .signal-data {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .detail-root {
    grid-template-columns: 1fr;
  }

  /* 窄屏时网格只剩一列：不把背景层移出流，它就会占掉第一行，
     抽屉被排到首屏之外（实测 panel.top = 视口高度）。 */
  .detail-backdrop {
    position: absolute;
    inset: 0;
    height: 100%;
  }

  .detail-panel {
    padding-top: 76px;
  }
}

.signal-title a,
.channel-link {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.signal-title a:hover {
  color: var(--signal);
}

.channel-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.channel-link:hover {
  color: var(--signal);
}

.detail-links {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.detail-links a {
  font-size: 13px;
  font-weight: 600;
  color: var(--signal);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.detail-links a:hover {
  text-decoration: underline;
}

/* ---- 按内容类型分区展示（同类相邻、区块分隔） ---- */
.kind-group + .kind-group {
  margin-top: 34px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.kind-head {
  margin: 0 0 14px 2px;
}

/* 整行标题即收起/展开按钮 */
.kind-toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  border-radius: 8px;
}

.kind-toggle:hover .kind-title {
  color: var(--signal);
}

.kind-toggle:hover .kind-title::before {
  box-shadow: 0 0 18px rgba(216, 255, 62, 0.9);
}

.kind-caret {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.kind-toggle:hover .kind-caret {
  border-color: var(--signal);
}

.kind-group.is-collapsed .kind-caret {
  transform: rotate(-45deg);
}

.kind-group.is-collapsed .kind-items {
  display: none;
}

.kind-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--text);
  font: 700 13px/1 var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: color 0.18s ease;
}

.kind-title::before {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-radius: 3px;
  background: var(--signal);
  box-shadow: 0 0 14px rgba(216, 255, 62, 0.7);
  transition: box-shadow 0.18s ease;
}

.kind-count {
  margin-left: auto;
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font: 500 11px/1 var(--mono);
}

.kind-items {
  display: grid;
  gap: 12px;
}

/* ---- “全部收起 / 全部展开”快捷操作 ---- */
.collapse-actions {
  flex: 0 0 auto;
  display: flex;
  gap: 6px;
}

.collapse-action {
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid rgba(216, 255, 62, 0.35);
  border-radius: 999px;
  background: transparent;
  color: var(--signal);
  font: 600 12px/1 var(--mono);
  cursor: pointer;
  white-space: nowrap;
  transition: 0.18s ease;
}

.collapse-action:hover {
  background: rgba(216, 255, 62, 0.08);
  border-color: var(--signal);
}

/* ---- 深度信号报告（仿长图文分析报告版式） ---- */
.rep-sub {
  margin: -4px 0 14px;
  color: var(--muted);
  font: 500 13px/1.6 var(--body);
}

.rep-table {
  display: grid;
  margin: 18px 0 6px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(18, 20, 19, 0.6);
}

.rep-row {
  display: grid;
  grid-template-columns: minmax(0, 120px) minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 11px 16px;
}

.rep-row + .rep-row {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.rep-key {
  color: var(--muted);
  font: 500 11px/1.3 var(--mono);
  letter-spacing: 0.04em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rep-val {
  color: rgba(237, 243, 232, 0.82);
  font: 600 13.5px/1.45 var(--body);
  text-align: right;
  overflow-wrap: anywhere;
}

.rep-val.hl {
  color: var(--signal);
  font: 800 17px/1.2 var(--display);
  letter-spacing: -0.02em;
}

.rep-sec {
  margin-top: 34px;
}

.rep-sec h3 {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
  color: var(--text);
  font: 800 19px/1.1 var(--display);
  letter-spacing: -0.04em;
}

.rep-sec h3::before {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-radius: 3px;
  background: var(--signal);
  box-shadow: 0 0 12px rgba(216, 255, 62, 0.6);
}

.rep-point {
  margin-top: 20px;
}

.rep-point h4 {
  margin: 0 0 8px;
  color: var(--text);
  font: 700 15px/1.3 var(--display);
  letter-spacing: -0.02em;
}

.rep-p {
  margin: 0;
  color: rgba(237, 243, 232, 0.76);
  line-height: 1.8;
}

.rep-p + .rep-p {
  margin-top: 12px;
}

.rep-lead {
  color: var(--text);
  font-weight: 700;
}

.rep-ul {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.rep-ul li {
  position: relative;
  margin-top: 9px;
  padding-left: 18px;
  color: rgba(237, 243, 232, 0.76);
  line-height: 1.7;
}

.rep-ul li::before {
  content: "▸";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--signal);
  font: 700 13px/1.7 var(--mono);
}

.rep-bench-lead {
  margin-top: 18px !important;
  font: 700 15px/1.3 var(--display);
  letter-spacing: -0.02em;
  color: var(--text) !important;
}

.rep-note {
  margin: 26px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: rgba(237, 243, 232, 0.4);
  font: 500 11px/1.7 var(--mono);
}

/* ==========================================================================
   SSG 页面套件（Astro 静态页：首页 / 类目榜 / 总榜 / 频道页）
   这些页面的正文在构建期就渲染进 HTML，这里的样式只负责排版，不参与内容生成。
   ========================================================================== */

.site-topbar,
.breadcrumbs,
.site-main {
  width: min(1280px, calc(100% - clamp(24px, 8vw, 96px)));
  margin: 0 auto;
}

.site-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.site-nav {
  display: flex;
  gap: 18px;
  font: 600 12px/1.6 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--signal);
}

/* 窄屏下 5 个导航项会被 flex 压缩成「AI / MOVIES」这种一词一行的碎块（实测 546px 宽就是如此）。
   让 logo 行整体换行、导航项自己不折行：导航整体掉到第二行，每个入口仍是完整的一行字。 */
@media (max-width: 980px) {
  .site-topbar {
    flex-wrap: wrap;
  }

  .site-nav {
    flex-wrap: wrap;
    gap: 10px 16px;
  }

  .site-nav a {
    white-space: nowrap;
  }
}

.breadcrumbs {
  padding: 16px 0 0;
  font: 500 11px/1.6 var(--mono);
  color: var(--muted);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(237, 243, 232, 0.24);
}

.breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--signal);
}

.site-main {
  padding-bottom: 40px;
}

.site-main > section + section {
  margin-top: clamp(28px, 4vw, 56px);
}

.section-title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 16px;
  font: 700 clamp(19px, 2.4vw, 26px) /1.25 var(--display);
  letter-spacing: -0.01em;
}

.section-count {
  color: var(--signal);
  font: 600 13px/1 var(--mono);
}

.section-more {
  margin: 12px 0 0;
  font: 500 12px/1.7 var(--mono);
  color: var(--muted);
}

.section-more a {
  color: var(--signal);
  text-decoration: none;
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 20px 0 0;
  padding: 0;
}

.hero-fact {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hero-fact strong {
  font: 700 26px/1.1 var(--display);
  color: var(--signal);
}

.hero-fact span {
  font: 500 11px/1.5 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.chip-row a.chip,
.chip-row .chip.is-static {
  display: inline-flex;
  text-decoration: none;
}

/* 数据表：窄屏横向滚动而不是挤压列，数字列一律等宽字体便于对齐比对 */
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th,
.data-table td {
  padding: 10px 14px;
  text-align: left;
  white-space: nowrap;
  border-bottom: 1px solid var(--line);
}

.data-table thead th {
  font: 500 11px/1.4 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(0, 0, 0, 0.25);
}

.data-table tbody tr:last-child th,
.data-table tbody tr:last-child td {
  border-bottom: 0;
}

.data-table tbody th {
  font-weight: 600;
}

.data-table tbody th a {
  color: var(--signal);
  text-decoration: none;
}

.data-table tbody th a:hover,
.data-table tbody th a:focus-visible {
  text-decoration: underline;
}

.data-table tbody td {
  font-family: var(--mono);
  color: var(--text);
}

/* 对比表里的句子型单元格：不该用等宽字体横向铺开 */
.data-table td.cell-text {
  font-family: var(--body);
  white-space: normal;
  min-width: 280px;
  color: var(--muted);
}

/* 频道估值计算器（/youtube-channel-value） */
.value-calc {
  margin: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field span {
  font: 500 11px/1.4 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.field input {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.3);
  color: var(--text);
  font: 600 16px/1.2 var(--mono);
}

.field input:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 1px;
}

.value-out {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin: 20px 0 0;
}

.value-out-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(216, 255, 62, 0.06);
}

.value-out-label {
  font: 500 11px/1.4 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.value-out-item strong {
  font: 700 clamp(22px, 2.6vw, 30px) / 1 var(--display);
  color: var(--signal);
}

.value-calc .rep-note {
  margin-top: 16px;
}

/* 计算器非法输入：把出错的那一格拉出来，并且只提示不输出金额。
   没有这段样式时错误提示会淹没在普通正文里，等于没提示。 */
.value-calc.has-input-error .rep-note {
  color: var(--coral);
}

.value-calc .field input[aria-invalid="true"] {
  border-color: var(--coral);
  box-shadow: 0 0 0 2px rgba(255, 91, 66, 0.18);
}

.board {
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}

.board-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.board-row:last-child {
  border-bottom: 0;
}

.board-rank {
  font: 600 12px/1 var(--mono);
  color: var(--muted);
}

.board-main {
  min-width: 0;
}

.board-title {
  margin: 0;
  font: 600 15px/1.4 var(--body);
}

.board-title a {
  color: var(--text);
  text-decoration: none;
}

.board-title a:hover {
  color: var(--signal);
}

.board-meta {
  margin: 4px 0 0;
  font: 500 11.5px/1.6 var(--mono);
  color: var(--muted);
}

.board-meta a {
  color: var(--muted);
}

.board-meta a:hover {
  color: var(--signal);
}

.board-metric {
  font: 700 15px/1 var(--mono);
  color: var(--signal);
}

.kind-section {
  padding-top: 8px;
}

.explainer-block {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px 24px;
  background: var(--panel);
}

.explainer-block p {
  margin: 0 0 14px;
  font: 400 14.5px/1.85 var(--body);
  color: rgba(237, 243, 232, 0.86);
}

.explainer-block p:last-child {
  margin-bottom: 0;
}

.grid-two {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}

.mini-title {
  margin: 0 0 8px;
  font: 600 12px/1.5 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--signal);
}

/* 类目页的「全部频道」折叠块：默认收起，展开后仍是 chip 列表 */
.niche-channels {
  margin-top: 14px;
}

.niche-channels > summary {
  cursor: pointer;
  font: 500 12.5px/1.6 var(--mono);
  letter-spacing: 0.04em;
  color: var(--signal);
}

.niche-channels > summary:hover {
  text-decoration: underline;
}

.niche-channels[open] > summary {
  margin-bottom: 10px;
}

/* ------------------------------------------------------------------
   渐进增强层（public/radar.js）专用样式
   ⚠️ 必须显式声明 [hidden]：UA 的 [hidden]{display:none} 会被作者样式里的
   display:grid 覆盖（.radar-list、.controls 等），不加这几条就会「隐藏失效」。
   ------------------------------------------------------------------ */
.controls[hidden],
.radar-list[hidden],
.empty-state[hidden],
#staticRadar[hidden],
.collapse-actions[hidden],
.filter-row[hidden] {
  display: none;
}

/* 可点击的行（由 JS 挂上）：给一个可感知的交互提示 */
.signal.is-clickable {
  cursor: pointer;
}

.signal.is-clickable:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.controls.is-loading .chip-group,
.controls.is-loading .sort-field {
  opacity: 0.55;
  pointer-events: none;
}

.detail-root {
  cursor: default;
}

.detail-backdrop {
  cursor: pointer;
}