:root {
  --rs-primary: #3355ff;
  --rs-primary-soft: #eef1ff;
  --rs-text: #1d2129;
  --rs-text-sub: #4e5969;
  --rs-text-mute: #86909c;
  --rs-border: #e5e6eb;
  --rs-bg: #f7f8fa;
  --rs-card: #ffffff;
  --rs-radius: 12px;
  --rs-radius-sm: 8px;
  --rs-shadow: 0 1px 2px rgba(29, 33, 41, .04), 0 8px 24px rgba(29, 33, 41, .06);
  --rs-max-width: 1280px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--rs-bg);
  color: var(--rs-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
input, button, select { font: inherit; color: inherit; }

.rs-wrap {
  max-width: var(--rs-max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- header ---------- */
.rs-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--rs-border);
}

.rs-header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 64px;
}

.rs-brand { display: flex; align-items: center; flex: none; }

.rs-brand-logo { height: 38px; width: auto; display: block; }

.rs-search { flex: 1; max-width: 560px; margin: 0 auto; }

.rs-search-box {
  display: flex; align-items: center; gap: 8px;
  background: var(--rs-bg);
  border: 1px solid var(--rs-border);
  border-radius: 999px;
  padding: 0 6px 0 14px;
  height: 40px;
  transition: border-color .15s, background .15s;
}

.rs-search-box:focus-within { background: #fff; border-color: var(--rs-primary); }
.rs-search-box svg { flex: none; color: var(--rs-text-mute); }

.rs-search-input {
  flex: 1; min-width: 0;
  border: 0; background: transparent; outline: none;
  font-size: 14px;
}

.rs-search-btn {
  flex: none; border: 0; cursor: pointer;
  background: var(--rs-primary); color: #fff;
  height: 30px; padding: 0 16px; border-radius: 999px;
  font-size: 13px;
}
.rs-search-btn:hover { background: #2743e6; }

.rs-header-spacer { flex: 1; }

/* ---------- layout ---------- */
.rs-layout {
  display: grid;
  grid-template-columns: 248px 1fr;
  gap: 24px;
  align-items: start;
  padding: 24px 0 48px;
}

/* ---------- sidebar ---------- */
.rs-sidebar {
  position: sticky;
  top: 88px;
  background: var(--rs-card);
  border: 1px solid var(--rs-border);
  border-radius: var(--rs-radius);
  padding: 18px 18px 8px;
  max-height: calc(100vh - 112px);
  overflow-y: auto;
}

.rs-sidebar-title {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 15px; font-weight: 600; margin-bottom: 6px;
}

.rs-filter-group { padding: 14px 0; border-top: 1px solid var(--rs-border); }
.rs-filter-group:first-of-type { border-top: 0; }

.rs-filter-head {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 14px; font-weight: 600; margin-bottom: 10px;
}

.rs-filter-list { display: flex; flex-direction: column; gap: 2px; }

.rs-filter-list.is-collapsed .rs-filter-extra { display: none; }

.rs-filter-item {
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px;
  padding: 6px 10px;
  border-radius: var(--rs-radius-sm);
  color: var(--rs-text-sub);
  font-size: 13px;
  transition: background .12s, color .12s;
}

.rs-filter-item:hover { background: var(--rs-bg); color: var(--rs-text); }

.rs-filter-item.is-active {
  background: var(--rs-primary-soft);
  color: var(--rs-primary);
  font-weight: 600;
}

.rs-filter-count { font-size: 12px; color: var(--rs-text-mute); font-variant-numeric: tabular-nums; }
.rs-filter-item.is-active .rs-filter-count { color: var(--rs-primary); }
.rs-filter-item.is-zero { opacity: .5; }

.rs-filter-more {
  border: 0; background: none; cursor: pointer;
  color: var(--rs-primary); font-size: 12px; padding: 6px 10px; margin-left: -10px;
}

/* ---------- main ---------- */
.rs-main { min-width: 0; }

.rs-tabs {
  display: flex; flex-wrap: wrap; gap: 10px;
  background: var(--rs-card);
  border: 1px solid var(--rs-border);
  border-radius: var(--rs-radius);
  padding: 14px;
}

.rs-tab {
  display: inline-flex; align-items: center; gap: 6px;
  height: 34px; padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--rs-border);
  background: #fff;
  color: var(--rs-text-sub);
  font-size: 13px;
  transition: all .12s;
}

.rs-tab:hover { border-color: var(--rs-primary); color: var(--rs-primary); }
.rs-tab.is-active {
  background: var(--rs-primary-soft);
  border-color: var(--rs-primary);
  color: var(--rs-primary);
  font-weight: 600;
}

.rs-tab-label { font-size: 12px; color: var(--rs-text-mute); padding-left: 4px; }

.rs-toolbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  margin: 18px 0;
  flex-wrap: wrap;
}

.rs-result { color: var(--rs-text-sub); }
.rs-result strong { color: var(--rs-primary); font-size: 17px; margin: 0 3px; }

.rs-sort { display: flex; gap: 6px; background: var(--rs-card); border: 1px solid var(--rs-border); border-radius: 999px; padding: 3px; }
.rs-sort a { padding: 5px 14px; border-radius: 999px; font-size: 13px; color: var(--rs-text-sub); }
.rs-sort a.is-active { background: var(--rs-primary); color: #fff; font-weight: 600; }

.rs-active { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }

.rs-active-chip {
  display: inline-flex; align-items: center; gap: 6px;
  height: 28px; padding: 0 12px; border-radius: 999px;
  background: var(--rs-primary-soft); color: var(--rs-primary); font-size: 12px;
}
.rs-active-chip.is-plain { background: var(--rs-card); color: var(--rs-text-mute); border: 1px dashed var(--rs-border); }

/* ---------- grid & card ---------- */
.rs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.rs-card {
  background: var(--rs-card);
  border: 1px solid var(--rs-border);
  border-radius: var(--rs-radius);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .16s, box-shadow .16s, border-color .16s;
}

.rs-card:hover { transform: translateY(-3px); box-shadow: var(--rs-shadow); border-color: #d4d8ff; }

.rs-cover { position: relative; aspect-ratio: 16 / 10; background: #eef0f4; overflow: hidden; }
.rs-cover img { width: 100%; height: 100%; object-fit: cover; }

.rs-cover-empty {
  width: 100%; height: 100%;
  display: grid; place-items: center;
  background: linear-gradient(135deg, #eef1ff, #f6f0ff);
  color: var(--rs-primary); font-size: 26px; font-weight: 700;
}

.rs-badge {
  position: absolute; top: 10px; left: 10px;
  display: inline-flex; align-items: center; gap: 4px;
  height: 22px; padding: 0 9px; border-radius: 999px;
  background: rgba(255, 77, 79, .95); color: #fff;
  font-size: 11px; font-weight: 600;
}

.rs-badge.is-official { left: auto; right: 10px; background: rgba(255, 157, 0, .95); }

.rs-play {
  position: absolute; inset: 0; margin: auto;
  width: 46px; height: 46px; border-radius: 50%;
  background: rgba(0, 0, 0, .42);
  display: grid; place-items: center;
  color: #fff;
}

.rs-card-body { padding: 14px 16px 12px; flex: 1; display: flex; flex-direction: column; gap: 8px; }

.rs-card-title {
  font-size: 15px; font-weight: 600; line-height: 1.45; margin: 0;
  display: -webkit-box; -webkit-line-clamp: 2; line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.rs-card:hover .rs-card-title { color: var(--rs-primary); }

.rs-card-summary {
  margin: 0; color: var(--rs-text-mute); font-size: 12.5px; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

.rs-tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; }

.rs-tag {
  display: inline-block; padding: 2px 8px; border-radius: 6px;
  background: var(--rs-bg); color: var(--rs-text-sub); font-size: 11.5px;
}

.rs-card-foot {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px; border-top: 1px solid var(--rs-border);
  color: var(--rs-text-mute); font-size: 12px;
}
.rs-card-foot span { display: inline-flex; align-items: center; gap: 5px; }

/* ---------- empty & pagination ---------- */
.rs-empty {
  grid-column: 1 / -1;
  background: var(--rs-card); border: 1px dashed var(--rs-border); border-radius: var(--rs-radius);
  padding: 64px 20px; text-align: center; color: var(--rs-text-mute);
}
.rs-empty strong { display: block; font-size: 16px; color: var(--rs-text); margin-bottom: 6px; }

.rs-pager { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 28px; }
.rs-pager a, .rs-pager span {
  min-width: 34px; height: 34px; padding: 0 10px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--rs-border); border-radius: var(--rs-radius-sm);
  background: #fff; color: var(--rs-text-sub); font-size: 13px;
}
.rs-pager a:hover { border-color: var(--rs-primary); color: var(--rs-primary); }
.rs-pager .is-current { background: var(--rs-primary); border-color: var(--rs-primary); color: #fff; font-weight: 600; }
.rs-pager .is-disabled { color: #c9cdd4; pointer-events: none; }

/* ---------- detail ---------- */
.rs-crumb { padding: 18px 0 4px; color: var(--rs-text-mute); font-size: 13px; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.rs-crumb a:hover { color: var(--rs-primary); }
.rs-crumb-sep { color: #c9cdd4; }

.rs-detail-layout { display: grid; grid-template-columns: 1fr 320px; gap: 24px; align-items: start; padding: 12px 0 48px; }

.rs-panel {
  background: var(--rs-card); border: 1px solid var(--rs-border);
  border-radius: var(--rs-radius); padding: 24px;
}

.rs-detail-badges { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.rs-pill { display: inline-flex; align-items: center; gap: 5px; height: 24px; padding: 0 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.rs-pill.is-type { background: rgba(255, 77, 79, .1); color: #f5222d; }
.rs-pill.is-official { background: rgba(255, 157, 0, .12); color: #d48806; }
.rs-pill.is-cat { background: var(--rs-primary-soft); color: var(--rs-primary); }

.rs-detail-title { font-size: 26px; line-height: 1.35; font-weight: 700; margin: 0 0 12px; }
.rs-detail-meta { display: flex; flex-wrap: wrap; gap: 16px; color: var(--rs-text-mute); font-size: 13px; margin-bottom: 18px; }
.rs-detail-meta span { display: inline-flex; align-items: center; gap: 6px; }

.rs-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px; }
.rs-btn {
  display: inline-flex; align-items: center; gap: 7px;
  height: 36px; padding: 0 18px; border-radius: var(--rs-radius-sm);
  border: 1px solid var(--rs-border); background: #fff; color: var(--rs-text-sub);
  cursor: pointer; font-size: 13px; transition: all .12s;
}
.rs-btn:hover { border-color: var(--rs-primary); color: var(--rs-primary); }
.rs-btn.is-primary { background: var(--rs-primary); border-color: var(--rs-primary); color: #fff; }
.rs-btn.is-primary:hover { background: #2743e6; color: #fff; }
.rs-btn[disabled] { opacity: .55; pointer-events: none; }

.rs-player { border-radius: var(--rs-radius); overflow: hidden; background: #000; margin-bottom: 22px; }
.rs-player video, .rs-player audio { width: 100%; display: block; max-height: 520px; }
.rs-player audio { background: #111; }
.rs-figure { margin: 0 0 22px; border: 1px solid var(--rs-border); border-radius: var(--rs-radius); overflow: hidden; }
.rs-figure img { width: 100%; }

.rs-filebox {
  display: flex; align-items: center; gap: 14px;
  border: 1px solid var(--rs-border); border-radius: var(--rs-radius);
  padding: 16px 18px; margin-bottom: 22px; background: var(--rs-bg);
}
.rs-filebox-icon { width: 42px; height: 42px; border-radius: 10px; background: var(--rs-primary-soft); color: var(--rs-primary); display: grid; place-items: center; font-size: 12px; font-weight: 700; flex: none; }
.rs-filebox-name { font-weight: 600; word-break: break-all; }
.rs-filebox-size { color: var(--rs-text-mute); font-size: 12px; }

.rs-content { font-size: 15px; line-height: 1.85; color: #23272e; word-break: break-word; }
.rs-content img { max-width: 100%; height: auto; border-radius: var(--rs-radius-sm); margin: 12px 0; }
.rs-content p { margin: 0 0 14px; }
.rs-content h2, .rs-content h3 { margin: 22px 0 10px; font-size: 18px; }
.rs-content ul, .rs-content ol { padding-left: 22px; margin: 0 0 14px; }
.rs-content pre { background: #f5f6f7; padding: 14px; border-radius: var(--rs-radius-sm); overflow-x: auto; }
.rs-content table { width: 100%; border-collapse: collapse; }
.rs-content td, .rs-content th { border: 1px solid var(--rs-border); padding: 8px 10px; }

.rs-info-title { display: flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 700; margin: 0 0 16px; }
.rs-info-row { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-top: 1px dashed var(--rs-border); font-size: 13px; }
.rs-info-row:first-child { border-top: 0; }
.rs-info-label { color: var(--rs-text-mute); flex: none; }
.rs-info-value { text-align: right; word-break: break-all; }
.rs-info-value .rs-tag { margin: 2px 0 2px 4px; }

.rs-related { margin-top: 24px; }
.rs-related h3 { font-size: 17px; margin: 0 0 14px; }

.rs-back { display: inline-flex; align-items: center; gap: 6px; color: var(--rs-text-sub); font-size: 13px; }
.rs-back:hover { color: var(--rs-primary); }

/* ---------- mobile filter trigger ---------- */
.rs-filter-toggle { display: none; }
.rs-mask { display: none; }

/* ---------- footer ---------- */
.rs-footer { border-top: 1px solid var(--rs-border); background: #fff; padding: 22px 0; color: var(--rs-text-mute); font-size: 12.5px; }
.rs-footer-inner { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; }

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .rs-layout { grid-template-columns: 216px 1fr; gap: 18px; }
  .rs-detail-layout { grid-template-columns: 1fr 280px; }
}

@media (max-width: 860px) {
  .rs-wrap { padding: 0 16px; }
  .rs-header-inner { height: 58px; gap: 12px; }
  .rs-brand-logo { height: 30px; }
  .rs-search { max-width: none; }

  .rs-layout { grid-template-columns: 1fr; padding-top: 14px; }

  .rs-filter-toggle {
    display: flex; align-items: center; justify-content: center; gap: 6px;
    width: 100%; height: 40px; margin-bottom: 12px;
    border: 1px solid var(--rs-border); border-radius: var(--rs-radius-sm);
    background: #fff; color: var(--rs-text-sub); cursor: pointer;
  }
  .rs-filter-toggle .rs-badge-count {
    background: var(--rs-primary); color: #fff; border-radius: 999px;
    font-size: 11px; padding: 0 7px; line-height: 18px;
  }

  .rs-sidebar {
    position: fixed; top: 0; left: 0; bottom: 0; z-index: 60;
    width: min(84vw, 320px); max-height: none;
    border-radius: 0; border: 0; border-right: 1px solid var(--rs-border);
    transform: translateX(-100%); transition: transform .22s ease;
    overflow-y: auto; padding-top: 14px;
    visibility: hidden;
  }
  body.rs-filter-open .rs-sidebar { transform: translateX(0); visibility: visible; }
  body.rs-filter-open .rs-mask {
    display: block; position: fixed; inset: 0; z-index: 50;
    background: rgba(0, 0, 0, .35);
  }

  .rs-detail-layout { grid-template-columns: 1fr; }
  .rs-detail-title { font-size: 21px; }
  .rs-panel { padding: 18px; }
  .rs-tabs { gap: 8px; padding: 12px; }
  .rs-tab { height: 32px; padding: 0 13px; font-size: 12.5px; }
}

@media (max-width: 560px) {
  .rs-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
  .rs-card-title { font-size: 13.5px; }
  .rs-card-summary { display: none; }
  .rs-card-body { padding: 10px 12px 8px; gap: 6px; }
  .rs-card-foot { padding: 8px 12px; font-size: 11px; }
  .rs-tag { font-size: 10.5px; padding: 1px 6px; }
  .rs-badge { height: 20px; font-size: 10px; top: 7px; left: 7px; }
  .rs-play { width: 36px; height: 36px; }
  .rs-toolbar { margin: 14px 0; }
  .rs-result { font-size: 12.5px; }
  .rs-result strong { font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}