:root {
  --bg: #fff;
  --fg: #242424;
  --muted: #666666;
  --line: #eeeeee;
  --accent: #ff2442;
  --accent-ink: #c31732;
  --accent-strong: #c91431;
  --accent-soft: #fff0f3;
  --link: #13386c;
  --chip: #f6f6f6;
  --shadow: 0 10px 30px rgb(20 20 20 / 8%);
  box-sizing: border-box;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --fg: #eeeeee;
    --muted: #b5b5b5;
    --line: #2a2a2a;
    --accent-soft: #33151d;
    --accent-ink: #ff8294;
    --accent-strong: #c91431;
    --link: #8eb4f0;
    --chip: #232323;
    --shadow: 0 10px 30px rgb(0 0 0 / 30%);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html {
  scroll-padding-top: env(safe-area-inset-top, 0px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: env(safe-area-inset-top, 0px);
  background: var(--bg);
  z-index: 40;
}

button { font: inherit; }

.hd {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 20;
  max-width: 1040px;
  margin: auto;
  padding: 18px 14px 0;
  background: var(--bg);
  background: color-mix(in srgb, var(--bg) 94%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 75%, transparent);
  backdrop-filter: blur(18px);
}

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

.eyebrow {
  margin: 0 0 1px;
  color: var(--accent-ink);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .15em;
}

.hd h1 {
  margin: 0;
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: -.02em;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 14px;
  background: var(--accent-strong);
  box-shadow: 0 8px 20px rgb(255 36 66 / 24%);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
}

.intro {
  max-width: 620px;
  margin: 12px 0 2px;
  color: var(--fg);
  font-size: 14px;
}

.hint {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 12px;
}

.tabs {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scrollbar-width: none;
}

.tabs::-webkit-scrollbar { display: none; }

.tab {
  position: relative;
  flex: 0 0 auto;
  padding: 9px 1px 10px;
  border: 0;
  background: none;
  color: var(--muted);
  cursor: pointer;
}

.tab::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  border-radius: 99px;
  background: transparent;
}

.tab[aria-selected="true"] {
  color: var(--fg);
  font-weight: 700;
}

.tab[aria-selected="true"]::after { background: var(--accent); }

.feed {
  max-width: 1040px;
  min-height: 40vh;
  margin: auto;
  padding: 10px 8px 44px;
  columns: 2;
  column-gap: 8px;
}

@media (min-width: 720px) {
  .feed { columns: 3; column-gap: 12px; padding: 16px 12px 52px; }
  .card { margin-bottom: 12px; }
}

.card {
  display: block;
  width: 100%;
  margin: 0 0 8px;
  padding: 0;
  overflow: hidden;
  break-inside: avoid;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg);
  box-shadow: none;
  color: var(--fg);
  text-align: left;
  cursor: pointer;
  transition: transform .16s ease, box-shadow .16s ease;
}

.card:hover,
.card:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  outline: none;
}

.card img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 4;
  background: var(--chip);
  object-fit: cover;
}

.card-title {
  display: -webkit-box;
  margin: 0;
  padding: 9px 10px 2px;
  overflow: hidden;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.45;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  padding: 3px 10px 10px;
  color: var(--muted);
  font-size: 12px;
}

.foot {
  margin: 0;
  padding: 0 0 14px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.site-footer {
  padding: 0 16px calc(28px + env(safe-area-inset-bottom, 0px));
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.site-footer a {
  color: inherit;
  text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  text-decoration: underline;
}

.state,
.noscript {
  max-width: 480px;
  margin: 32px auto;
  padding: 18px;
  break-inside: avoid;
  border-radius: 12px;
  background: var(--chip);
  color: var(--muted);
  text-align: center;
}

.detail {
  position: fixed;
  z-index: 50;
  inset: 0;
  display: none;
  overflow-y: auto;
  background: var(--bg);
  overscroll-behavior: contain;
}

.detail.open { display: block; }

.detail-view {
  max-width: 560px;
  min-height: 100%;
  margin: auto;
  padding-top: env(safe-area-inset-top, 0px);
  background: var(--bg);
}

.detail-top {
  position: sticky;
  top: 0;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  background: var(--bg);
  background: color-mix(in srgb, var(--bg) 94%, transparent);
  backdrop-filter: blur(16px);
  font-weight: 700;
}

.icon-button {
  display: grid;
  width: 38px;
  height: 38px;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--chip);
  color: var(--fg);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
}

.carousel-wrap { position: relative; }

.carousel {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}

.carousel::-webkit-scrollbar { display: none; }

.carousel img {
  flex: 0 0 100%;
  width: 100%;
  aspect-ratio: 3 / 4;
  scroll-snap-align: center;
  background: var(--chip);
  object-fit: cover;
}

.counter {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 2px 10px;
  border-radius: 99px;
  background: rgb(0 0 0 / 56%);
  color: #fff;
  font-size: 12px;
}

.nav-arrow {
  position: absolute;
  top: 50%;
  display: grid;
  width: 36px;
  height: 36px;
  padding: 0;
  place-items: center;
  transform: translateY(-50%);
  border: 0;
  border-radius: 50%;
  background: rgb(0 0 0 / 42%);
  color: #fff;
  font-size: 22px;
  cursor: pointer;
}

.nav-arrow.prev { left: 8px; }
.nav-arrow.next { right: 8px; }

@media (hover: none) { .nav-arrow { display: none; } }

.dots {
  display: flex;
  justify-content: center;
  gap: 5px;
  min-height: 22px;
  padding: 8px;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--line);
}

.dot.active { background: var(--accent); }

.detail-copy { padding: 5px 15px 96px; }

.detail-copy h2 {
  margin: 4px 0 10px;
  font-size: 18px;
  line-height: 1.45;
}

.detail-copy p {
  margin: 0 0 14px;
  white-space: pre-line;
}

.tags { display: flex; flex-wrap: wrap; gap: 7px; }

.tag {
  padding: 3px 9px;
  border-radius: 99px;
  background: var(--chip);
  color: var(--link);
  font-size: 13px;
}

.action-bar {
  position: sticky;
  bottom: 0;
  z-index: 4;
  display: flex;
  gap: 10px;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--line);
  background: var(--bg);
  background: color-mix(in srgb, var(--bg) 96%, transparent);
  backdrop-filter: blur(16px);
}

.action-bar button {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--accent);
  border-radius: 99px;
  background: none;
  color: var(--accent-ink);
  cursor: pointer;
}

.action-bar button.primary,
.action-bar button.selected {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
  color: #fff;
}

.toast {
  position: fixed;
  z-index: 80;
  bottom: calc(88px + env(safe-area-inset-bottom, 0px));
  left: 50%;
  display: none;
  max-width: min(90vw, 420px);
  padding: 9px 16px;
  transform: translateX(-50%);
  border-radius: 9px;
  background: rgb(0 0 0 / 82%);
  color: #fff;
  font-size: 14px;
  text-align: center;
}

.toast.show { display: block; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}