:root {
  color-scheme: light;
  font-family: "Microsoft YaHei UI", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  --bg: #f4f6f8;
  --paper: #ffffff;
  --ink: #17202a;
  --muted: #6b7480;
  --line: rgba(23,32,42,.12);
  --red: #e63946;
  --blue: #2563eb;
  --green: #089981;
  --shadow: 0 16px 42px rgba(31,41,55,.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(23,32,42,.04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(37,99,235,.08), transparent 360px),
    var(--bg);
  background-size: 80px 80px, auto;
}
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; height: 100%; object-fit: cover; }
h1,h2,h3,p { margin-top: 0; }

.header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  min-height: 68px;
  padding: 0 clamp(16px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
  background: rgba(244,246,248,.9);
  backdrop-filter: blur(16px);
}
.brand { font-size: 1.28rem; font-weight: 950; color: var(--red); white-space: nowrap; }
.nav { display: flex; justify-content: center; gap: 8px; overflow-x: auto; white-space: nowrap; }
.nav a,.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 950;
}
.nav a.active,.nav a:hover { color: var(--ink); background: #fff; box-shadow: 0 8px 20px rgba(31,41,55,.08); }
.pill { color: #fff; background: var(--red); }

.hero {
  width: min(1320px, calc(100% - 32px));
  margin: 20px auto 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .44fr);
  gap: 12px;
  align-items: stretch;
}
.hero-main {
  min-height: 0;
  aspect-ratio: 16 / 8.55;
  overflow: hidden;
  border-radius: 8px;
  background: #dfe5ec;
  box-shadow: var(--shadow);
}
.hero-main a { position: relative; display: block; height: 100%; }
.hero-main a::after,.cover::after,.detail-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(0,0,0,.68));
  pointer-events: none;
}
.hero-copy {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 22px;
  z-index: 2;
  color: #fff;
}
.hero-copy p { margin-bottom: 8px; color: rgba(255,255,255,.76); font-weight: 950; }
.hero-copy h1 { margin-bottom: 8px; font-size: clamp(2rem, 3.2vw, 4rem); line-height: 1; letter-spacing: 0; }
.hero-copy span { font-weight: 950; }
.hero-side {
  display: grid;
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.channels,.dashboard,.collection,.section,.page-title,.filters,.detail,.footer {
  width: min(1320px, calc(100% - 32px));
  margin: 22px auto 0;
}
.channels {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.channel {
  display: grid;
  grid-template-columns: 74px minmax(0,1fr);
  gap: 12px;
  align-items: center;
  min-height: 92px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: 0 10px 28px rgba(31,41,55,.07);
}
.channel img { height: 72px; border-radius: 6px; }
.channel b,.channel small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.channel small { margin-top: 4px; color: var(--muted); }

.dashboard {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.list-panel {
  padding: 18px;
  border-radius: 8px;
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: 0 10px 28px rgba(31,41,55,.07);
}
.list-panel.accent { background: #17202a; color: #fff; }
.list-panel h2 { margin-bottom: 12px; font-size: 1.25rem; }
.text-link {
  display: grid;
  grid-template-columns: 38px minmax(0,1fr) auto;
  gap: 12px;
  align-items: center;
  min-height: 38px;
  border-top: 1px solid var(--line);
}
.list-panel.accent .text-link { border-color: rgba(255,255,255,.12); }
.text-link span { color: var(--red); font-weight: 950; }
.text-link b { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.text-link em { color: var(--green); font-style: normal; font-weight: 950; }

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 12px;
}
.section-head h2 { margin-bottom: 2px; font-size: 1.42rem; }
.section-head p,.tile-copy p,.page-title p,.detail-copy p,.footer p { color: var(--muted); line-height: 1.62; }
.section-head a,#resultCount { color: var(--blue); font-weight: 950; }
.collection-grid {
  display: grid;
  grid-template-columns: 1.35fr repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(154px, 1fr));
  gap: 12px;
}
.tile {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: 0 8px 22px rgba(31,41,55,.07);
  transition: transform .18s ease, box-shadow .18s ease;
}
.tile:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.side-tile { min-height: 0; }
.hero-side .side-tile { position: relative; overflow: hidden; }
.side-tile a {
  display: grid;
  grid-template-columns: minmax(120px, 42%) minmax(0, 1fr);
  height: 100%;
}
.hero-side .side-tile a {
  position: relative;
  grid-template-columns: 1fr;
  overflow: hidden;
}
.cover {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #dfe5ec;
}
.feature-tile .cover { aspect-ratio: 16 / 11; }
.hero-side .side-tile .cover {
  position: absolute;
  inset: 0;
  height: 100%;
  aspect-ratio: auto;
}
.cover span {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 2;
  padding: 4px 7px;
  border-radius: 999px;
  color: #fff;
  background: var(--red);
  font-size: .72rem;
  font-weight: 950;
}
.tile-copy { padding: 10px; }
.tile-copy h3 { margin-bottom: 4px; min-height: 2.45em; font-size: .98rem; line-height: 1.25; }
.tile-copy p { margin-bottom: 8px; font-size: .78rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tile-copy div { display: flex; flex-wrap: wrap; gap: 6px; color: var(--muted); font-size: .75rem; }
.tile-copy b { color: var(--red); }
.tile-copy em { font-style: normal; }
.side-tile .tile-copy {
  display: grid;
  align-content: center;
  padding: 12px;
}
.hero-side .side-tile .tile-copy {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 16px 14px 12px;
  color: #fff;
  background: linear-gradient(180deg, rgba(0,0,0,0), rgba(0,0,0,.84));
}
.side-tile .tile-copy h3 {
  min-height: auto;
  font-size: 1rem;
}
.hero-side .side-tile .tile-copy h3 {
  margin-bottom: 5px;
  font-size: 1.14rem;
  text-shadow: 0 2px 10px rgba(0,0,0,.45);
}
.hero-side .side-tile .tile-copy p,
.hero-side .side-tile .tile-copy div {
  color: rgba(255,255,255,.82);
}
.hero-side .side-tile .tile-copy div {
  gap: 8px;
}
.hero-side .side-tile .tile-copy b { color: #ffd95a; }

.page-title {
  padding: clamp(28px, 5vw, 58px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(135deg, #fff, rgba(37,99,235,.08), rgba(230,57,70,.08));
  box-shadow: var(--shadow);
}
.label { margin-bottom: 8px; color: var(--green); font-weight: 950; text-transform: uppercase; }
.page-title h1 { margin-bottom: 10px; font-size: clamp(2.2rem, 4.2vw, 4.8rem); line-height: 1.02; }
.filters {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto auto;
  gap: 10px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}
.search-form { display: flex; gap: 8px; }
.search-form input,.search-form button,.filter-buttons button,.filters select {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-weight: 900;
}
.search-form input { width: 100%; padding: 0 14px; }
.search-form button,.filter-buttons button,.filters select { padding: 0 13px; }
.filter-buttons { display: flex; flex-wrap: wrap; gap: 8px; }
.search-form button,.filter-buttons button:hover { color: #fff; background: var(--red); }

.detail {
  display: grid;
  grid-template-columns: minmax(260px, 420px) minmax(0,1fr);
  gap: 16px;
  align-items: stretch;
}
.detail-cover {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  border-radius: 8px;
  background: #dfe5ec;
  box-shadow: var(--shadow);
}
.detail-copy {
  padding: clamp(24px, 5vw, 54px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow);
}
.detail-copy h1 { margin-bottom: 10px; font-size: clamp(2.2rem, 4vw, 4.6rem); line-height: 1.03; }
.origin { font-weight: 950; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.badges span { padding: 7px 10px; border-radius: 999px; color: #fff; background: var(--red); font-weight: 950; }
.button { display: inline-flex; align-items: center; min-height: 40px; padding: 0 16px; border-radius: 999px; color: #fff; background: var(--blue); font-weight: 950; }

.footer {
  display: grid;
  grid-template-columns: minmax(260px, 1.4fr) repeat(3, minmax(160px, .65fr));
  gap: 18px;
  margin-bottom: 24px;
  padding: 24px 0 0;
  border-top: 1px solid var(--line);
}
.footer strong { display: block; margin-bottom: 8px; color: var(--red); font-size: 1.2rem; }
.footer h3 { margin-bottom: 10px; font-size: .95rem; }
.footer a { display: block; margin: 7px 0; color: var(--muted); }
.image-missing { outline: 2px solid #ff4444; }

@media (max-width: 1080px) {
  .hero,.dashboard,.detail { grid-template-columns: 1fr; }
  .hero-main { min-height: 340px; aspect-ratio: auto; }
  .hero-side { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .side-tile a { grid-template-columns: 1fr; }
  .side-tile .cover { height: 128px; }
  .channels { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .collection-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-tile { grid-column: span 2; }
  .filters { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .header { grid-template-columns: 1fr; gap: 8px; padding: 12px 16px; }
  .nav { justify-content: start; }
  .hero,.channels,.dashboard,.collection,.section,.page-title,.filters,.detail,.footer { width: calc(100% - 24px); }
  .hero-main { min-height: auto; aspect-ratio: 16 / 11; }
  .hero-side,.channels,.collection-grid,.footer { grid-template-columns: 1fr; }
  .hero-side { grid-template-rows: auto; }
  .feature-tile { grid-column: auto; }
  .tile-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .detail-cover { min-height: auto; aspect-ratio: 2 / 2.8; }
}