/* ============================================================
   AniMatch 主页 · 按静态样板（web-design/index.html）定稿
   配色与客户端同款（app_colors.dart）
   ============================================================ */

:root {
  --bg: #F0F8FF;
  --bg-soft: #E3F1FB;
  --card: #FFFFFF;
  --border: #CFE4F6;
  --text: #2B4A66;
  --text-2: #5A7896;
  --primary: #4A90D9;
  --primary-strong: #3A7BC8;
  --primary-soft: rgba(74, 144, 217, .14);
  --text-3: #8CA8C0;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0E1620;
    --bg-soft: #1D2936;
    --card: #182230;
    --border: #2A3B4D;
    --text: #E4EDF6;
    --text-2: #A9BED2;
    --primary: #4A90D9;
    --primary-strong: #3A7BC8;
    --primary-soft: rgba(74, 144, 217, .18);
    --text-3: #6E87A0;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei",
    "PingFang SC", "Hiragino Sans GB", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-strong); }
.wrap { max-width: 1320px; margin: 0 auto; padding: 0 24px; }

/* ---------- 顶栏 ---------- */
.site-top {
  position: sticky;
  top: 0;
  z-index: 50;
  background: linear-gradient(90deg, #FFFFFF 0%, #D5E9F8 100%);
  border-bottom: 1px solid var(--border);
}
.top-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  height: 56px;
}
.logo {
  font-size: 19px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: .3px;
  white-space: nowrap;
}
.logo span { color: var(--primary); }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-2);
  white-space: nowrap;
  transition: color .2s ease, background .2s ease;
}
.nav a:hover { color: var(--text); background: var(--bg-soft); }
.nav a.active { color: var(--text); background: var(--primary-soft); }
.top-search {
  display: flex;
  flex: 1;
  min-width: 160px;
  max-width: 380px;
  margin-left: auto;
}
.top-search input {
  flex: 1;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.top-search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}
.top-user { display: flex; align-items: center; gap: 10px; }
.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-2);
  font-size: 13px;
  font-weight: 600;
}
.avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: none;
  cursor: pointer;
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 14px;
  font-family: inherit;
  font-weight: 600;
  color: #fff;
  background: var(--primary);
  transition: background .2s, transform .15s;
}
.btn:hover { background: var(--primary-strong); color: #fff; }
.btn:active { transform: scale(.97); }
.btn-ghost {
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-soft); color: var(--text); }
:focus-visible { outline: 3px solid var(--primary-soft); outline-offset: 2px; }

/* ---------- 档期选择条 ---------- */
.season-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin: 26px 0 8px;
}
.pill-group { display: flex; gap: 6px; flex-wrap: wrap; }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text-2);
  font-size: 14px;
  font-weight: 600;
  transition: border-color .2s, background .2s, color .2s;
}
.pill:hover { border-color: var(--primary); color: var(--primary); }
.pill.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.season-head-inline {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-shrink: 0;
}
.season-head-inline h1 { font-size: 18px; font-weight: 800; margin: 0; white-space: nowrap; }
.season-head-inline span { font-size: 12px; color: var(--text-3); white-space: nowrap; }
.view-toggle {
  margin-left: auto;
  display: flex;
  gap: 4px;
  padding: 3px;
  background: var(--bg-soft);
  border-radius: 9px;
}
.view-toggle a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 28px;
  border-radius: 7px;
  color: var(--text-3);
}
.view-toggle a.active {
  background: var(--card);
  color: var(--text);
  box-shadow: 0 1px 2px rgba(74, 144, 217, .10);
}
@media (max-width: 760px) {
  .nav { display: none; }
  .top-search { max-width: none; }
}

/* ---------- 正方形大框 + 四框 ---------- */
.home-box {
  width: 100%;
  aspect-ratio: 1 / 1;
  margin: 20px auto 0;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg);
  padding: 16px;
}
.home-box-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px;
  height: 100%;
}
.left-col, .right-col {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
  height: 100%;
  min-height: 0;
}
.f-cell {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  min-width: 0;
  box-shadow: 0 1px 2px rgba(74, 144, 217, .08);
}
/* 四个框共享同一个外接圆渐变（圆心 = 大框中心 636,636，半径 899px，按内容区宽 1272 计算） */
.f-track { background: radial-gradient(circle 899px at 620px 620px, #4A90D9 0%, #F0F8FF 100%); }
.f-community { background: radial-gradient(circle 899px at -300px 620px, #4A90D9 0%, #F0F8FF 100%); }
.f-works { background: radial-gradient(circle 899px at 620px 480px, rgba(74, 144, 217, .55) 0%, #F0F8FF 100%); }
.f-posts { background: radial-gradient(circle 899px at -300px 250px, #4A90D9 0%, #F0F8FF 100%); }
.f-track { flex-shrink: 0; min-height: 120px; }
.f-community { flex-shrink: 0; height: 350px; }
.f-works, .f-posts {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  scrollbar-width: none;
}
.f-works::-webkit-scrollbar, .f-posts::-webkit-scrollbar { display: none; }

.track-box-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-2);
  margin-bottom: 10px;
}
.track-strip {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}
.track-strip::-webkit-scrollbar { display: none; }
.track-chip {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  width: 58px;
  flex-shrink: 0;
}
.track-chip img {
  width: 52px;
  height: 52px;
  border-radius: 10px;
  background: var(--bg-soft);
  object-fit: cover;
}
.track-chip span {
  font-size: 11px;
  color: var(--text-2);
  max-width: 58px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.track-empty {
  flex: 1;
  font-size: 13px;
  color: var(--text-3);
  text-align: center;
  padding: 18px 12px;
}

.empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-3);
  font-size: 14px;
}

.side-title {
  font-size: 14px;
  font-weight: 800;
  margin: 0 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.side-title a { font-size: 12px; font-weight: 600; color: var(--text-3); }
.side-list { list-style: none; margin: 0; padding: 0; }
.side-list li { padding: 8px 0; border-bottom: 1px dashed var(--border); }
.side-list li:last-child { border-bottom: none; }
.side-list li > a {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  color: var(--text);
}
.side-cover {
  width: 40px;
  height: 54px;
  border-radius: 7px;
  background: var(--bg-soft);
  flex-shrink: 0;
  object-fit: cover;
}
/* 热门社区框固定 350px 高：列表紧凑化，保证 5 条完整显示 */
.f-community .side-list li { padding: 5px 0; }
.f-community .side-cover { width: 36px; height: 48px; }
.side-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.side-name {
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.side-sub { font-size: 11px; color: var(--text-2); }
.side-badge {
  font-size: 11px;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 999px;
  padding: 2px 8px;
  flex-shrink: 0;
}
.post-tag {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--text-2);
  flex-shrink: 0;
}
.post-title {
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-meta {
  font-size: 11px;
  color: var(--text-2);
  display: flex;
  gap: 8px;
  margin-top: 3px;
}

.home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
}
.anime-card {
  display: block;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 8px;
  transition: box-shadow .2s;
  transform-style: preserve-3d;
  will-change: transform;
}
.anime-card:hover {
  box-shadow: 0 6px 20px rgba(74, 144, 217, .16);
  color: var(--text);
}
.poster {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}
.poster img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease;
}
.anime-card:hover .poster img { transform: scale(1.05); }
.poster .ph { color: var(--text-2); font-size: 12px; }
.rating-chip {
  position: absolute;
  top: 8px; right: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, .55);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}
.status-dot {
  position: absolute;
  left: 8px; bottom: 8px;
  width: 10px; height: 10px;
  border-radius: 50%;
  border: 1.5px solid #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .25);
}
.status-dot.st-WANT { background: #4A90D9; }
.status-dot.st-DOING { background: #4CAF7D; }
.status-dot.st-DONE { background: #9B7EDE; }
.card-name {
  font-size: 13px;
  font-weight: 600;
  margin-top: 6px;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card-meta { font-size: 12px; color: var(--text-2); margin-top: 2px; }

@media (prefers-color-scheme: dark) {
  .site-top { background: linear-gradient(90deg, #182230 0%, #243242 100%); }
  .home-box { background: #0E1620; }
  .f-track { background: radial-gradient(circle 899px at 620px 620px, #4A90D9 0%, #0E1620 100%); }
  .f-community { background: radial-gradient(circle 899px at -300px 620px, #4A90D9 0%, #0E1620 100%); }
  .f-works { background: radial-gradient(circle 899px at 620px 480px, rgba(74, 144, 217, .45) 0%, #0E1620 100%); }
  .f-posts { background: radial-gradient(circle 899px at -300px 250px, #4A90D9 0%, #0E1620 100%); }
}

@media (max-width: 1080px) {
  .home-box-inner { grid-template-columns: 1fr; }
  .home-box { max-width: 100%; }
  .f-works, .f-posts { height: 60vh; }
}