/* ===== 查次元 CharACG · 橙白亮色风格 ===== */
:root,
html[data-theme="light"] {
  --bg: #fff7e6;
  --bg-soft: #ffffff;
  --card: #ffffff;
  --card-hover: #fff1d6;
  --border: #ffe0b0;
  --ink: #1b1b2a;
  --ink-shadow: rgba(27,27,42,.16);
  --text: #211c18;
  --text-dim: #6b5b4a;
  --text-mute: #a08a72;
  --accent: #ff7a00;
  --accent2: #ff9e2c;
  --accent3: #1e63c8;
  --accent4: #ffc107;
  --tag-bg: #ffefd6;
  --tag-border: #ffc98a;
  --tag-text: #c2560a;
  --shadow: 0 6px 22px rgba(255,122,0,.12);
  --radius: 16px;
}
html[data-theme="dark"] {
  --bg: #14111a;
  --bg-soft: #1e1b28;
  --card: #241f30;
  --card-hover: #2c2540;
  --border: #3a3450;
  --ink: #0e0c14;
  --ink-shadow: rgba(0,0,0,.45);
  --text: #f3ede4;
  --text-dim: #c2b6c9;
  --text-mute: #8a7e97;
  --accent: #ff8a1e;
  --accent2: #ffb04d;
  --accent3: #4f8de0;
  --accent4: #ffd24d;
  --tag-bg: #33284a;
  --tag-border: #54406e;
  --tag-text: #ffb86b;
  --shadow: 0 8px 30px rgba(0,0,0,.45);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .3s, color .3s;
}
a { color: inherit; text-decoration: none; }
img { display: block; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,250,244,.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
html[data-theme="dark"] .site-header { background: rgba(26,20,16,.9); }
.header-inner {
  max-width: 1200px; margin: 0 auto; padding: 10px 18px;
  display: flex; align-items: center; gap: 16px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 12px;
  display: grid; place-items: center; font-size: 22px; font-weight: 800; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent3));
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink-shadow);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text strong { font-size: 17px; letter-spacing: .5px; }
.logo-text em { font-size: 11px; font-style: normal; color: var(--text-mute); letter-spacing: 1px; }

.search-box {
  flex: 1; display: flex; align-items: center; gap: 8px;
  background: var(--bg-soft); border: 2px solid var(--ink);
  border-radius: 999px; padding: 8px 14px; max-width: 560px;
  box-shadow: 2px 2px 0 var(--ink-shadow);
}
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255,122,24,.18); }
.search-icon { opacity: .7; }
.search-box input {
  flex: 1; border: 0; background: transparent; color: var(--text);
  font-size: 14px; outline: none;
}
.search-clear { border: 0; background: transparent; color: var(--text-mute); cursor: pointer; font-size: 13px; }

.header-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.icon-btn {
  width: 38px; height: 38px; border-radius: 11px; cursor: pointer;
  background: var(--bg-soft); border: 2px solid var(--ink); color: var(--text); font-size: 17px;
  box-shadow: 2px 2px 0 var(--ink-shadow);
}
.icon-btn:hover { border-color: var(--accent); }
.primary-btn {
  border: 2px solid var(--ink); cursor: pointer; color: #fff; font-weight: 700; font-size: 14px;
  padding: 8px 15px; border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent3));
  box-shadow: 3px 3px 0 var(--ink-shadow);
  transition: transform .12s, box-shadow .12s;
}
.primary-btn:hover { transform: translate(-2px,-2px); box-shadow: 5px 5px 0 var(--ink-shadow); }
.primary-btn.full { width: 100%; padding: 12px; }
.primary-btn.ghost {
  background: transparent; color: var(--accent3); border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink-shadow);
}
.primary-btn.ghost:hover { background: var(--tag-bg); }

/* ===== Hero ===== */
.hero { position: relative; overflow: hidden; padding: 60px 18px 46px; text-align: center; }
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(50% 50% at 18% 12%, rgba(255,122,0,.20), transparent 60%),
    radial-gradient(45% 45% at 85% 15%, rgba(30,99,200,.16), transparent 60%),
    radial-gradient(55% 55% at 50% 100%, rgba(255,193,7,.14), transparent 60%);
}
.hero-inner { position: relative; z-index: 1; max-width: 760px; margin: 0 auto; }
.hero-title { font-size: clamp(34px, 6vw, 56px); font-weight: 900; letter-spacing: 1px; text-shadow: 2px 2px 0 var(--ink-shadow); }
.hero-title span {
  background: linear-gradient(135deg, var(--accent), var(--accent3));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { margin-top: 12px; color: var(--text-dim); font-size: clamp(14px,2.4vw,17px); }
.hero-search {
  margin: 26px auto 0; max-width: 520px; display: flex; align-items: center; gap: 10px;
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 999px; padding: 12px 18px;
  box-shadow: var(--shadow);
}
.hero-search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(255,122,24,.16); }
.hero-search input { flex: 1; border: 0; background: transparent; color: var(--text); font-size: 16px; outline: none; }
.hero-stats { margin-top: 18px; color: var(--text-mute); font-size: 13px; }
.hero-stats b { color: var(--accent3); }

/* ===== Category bar ===== */
.cat-bar {
  position: sticky; top: 60px; z-index: 40;
  background: rgba(255,250,244,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
html[data-theme="dark"] .cat-bar { background: rgba(26,20,16,.92); }
.cat-bar-inner {
  max-width: 1200px; margin: 0 auto; padding: 10px 18px;
  display: flex; gap: 8px; overflow-x: auto; scrollbar-width: thin;
}
.cat-chip {
  flex-shrink: 0; cursor: pointer; white-space: nowrap;
  border: 2px solid var(--ink); background: var(--bg-soft); color: var(--text-dim);
  padding: 5px 13px; border-radius: 999px; font-size: 13px; transition: all .15s;
  box-shadow: 2px 2px 0 var(--ink-shadow);
}
.cat-chip:hover { color: var(--accent3); border-color: var(--accent); }
.cat-chip.active {
  color: #fff; border-color: var(--ink);
  background: linear-gradient(135deg, var(--accent), var(--accent3));
  box-shadow: 2px 2px 0 var(--ink-shadow);
}

/* ===== Sections & cards ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 28px 18px 60px; }
.cat-section { margin-bottom: 40px; scroll-margin-top: 120px; }
.cat-head { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.cat-head .cat-emoji { font-size: 24px; }
.cat-head h2 { font-size: 20px; font-weight: 800; }
.cat-head .cat-count { color: var(--text-mute); font-size: 13px; }

.grid {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
}
.card {
  display: flex; gap: 12px; align-items: flex-start;
  background: var(--card); border: 2px solid var(--ink); border-radius: var(--radius);
  padding: 14px; box-shadow: 3px 3px 0 var(--ink-shadow);
  transition: transform .15s, background .15s, border-color .15s, box-shadow .15s;
}
.card:hover {
  transform: translate(-2px,-2px); background: var(--card-hover);
  border-color: var(--accent); box-shadow: 5px 5px 0 var(--ink-shadow);
}
.card-fav {
  width: 42px; height: 42px; border-radius: 11px; flex-shrink: 0;
  background: var(--tag-bg); display: grid; place-items: center; overflow: hidden;
  border: 1px solid var(--border);
}
.card-fav img { width: 26px; height: 26px; object-fit: contain; }
.card-body { min-width: 0; flex: 1; }
.card-title { font-weight: 700; font-size: 15px; display: flex; align-items: center; gap: 6px; }
.card-title .ext { opacity: .4; font-size: 12px; }
.card-desc {
  color: var(--text-dim); font-size: 12.5px; margin-top: 3px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.card-tag {
  display: inline-block; margin-top: 8px; font-size: 11px; color: var(--tag-text);
  background: var(--tag-bg); border: 1px solid var(--tag-border);
  padding: 1px 8px; border-radius: 999px;
}

.empty-state { text-align: center; padding: 60px 20px; color: var(--text-mute); }
.empty-emoji { font-size: 46px; margin-bottom: 10px; }

/* ===== Footer ===== */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-soft); }
.footer-inner {
  max-width: 1200px; margin: 0 auto; padding: 28px 18px;
  display: flex; flex-wrap: wrap; gap: 20px; justify-content: space-between;
}
.footer-brand strong { font-size: 16px; }
.footer-brand p { color: var(--text-mute); font-size: 13px; max-width: 420px; margin-top: 6px; }
.footer-meta { color: var(--text-mute); font-size: 13px; text-align: right; }
.footer-meta p { margin-top: 4px; }
.footer-meta .icp { color: var(--text-dim); }
.footer-meta .icp a { color: var(--accent3); }

/* ===== Modal ===== */
.modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 18px; }
.modal[hidden] { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(40,20,0,.45); backdrop-filter: blur(3px); }
.modal-card {
  position: relative; z-index: 1; width: min(440px, 100%);
  background: var(--card); border: 2px solid var(--ink); border-radius: 18px;
  padding: 24px; box-shadow: 5px 5px 0 var(--ink-shadow);
}
.modal-close { position: absolute; top: 14px; right: 14px; border: 0; background: transparent; color: var(--text-mute); font-size: 16px; cursor: pointer; }
.modal-card h3 { font-size: 19px; }
.modal-desc { color: var(--text-dim); font-size: 13px; margin: 6px 0 16px; }
.submit-form { display: flex; flex-direction: column; gap: 12px; }
.submit-form label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: var(--text-dim); }
.submit-form input, .submit-form select, .submit-form textarea {
  background: var(--bg-soft); border: 1.5px solid var(--ink); border-radius: 10px;
  padding: 10px 12px; color: var(--text); font-size: 14px; font-family: inherit; outline: none;
}
.submit-form input:focus, .submit-form select:focus, .submit-form textarea:focus { border-color: var(--accent); }
.modal-tip { margin-top: 12px; font-size: 13px; color: var(--accent3); }

/* ===== To top ===== */
.to-top {
  position: fixed; right: 20px; bottom: 24px; z-index: 60;
  width: 44px; height: 44px; border-radius: 50%; border: 2px solid var(--ink); cursor: pointer;
  background: linear-gradient(135deg, var(--accent), var(--accent3)); color: #fff; font-size: 20px;
  box-shadow: 3px 3px 0 var(--ink-shadow);
}
.to-top[hidden] { display: none; }

/* ===== 热门推荐 ===== */
.featured { padding: 26px 18px 8px; }
.featured-inner { max-width: 1200px; margin: 0 auto; }
.featured-head { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.featured-fire {
  font-size: 22px; filter: drop-shadow(0 2px 4px rgba(255,94,58,.4));
  animation: firepulse 1.8s ease-in-out infinite;
}
@keyframes firepulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.18) rotate(-4deg); } }
.featured-head h2 {
  font-size: 21px; font-weight: 900; letter-spacing: .5px;
  background: linear-gradient(135deg, var(--accent), var(--accent3));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.featured-sub { color: var(--text-mute); font-size: 13px; }
.featured-grid {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
}
.fcard { position: relative; overflow: hidden; border-color: var(--tag-border); }
.fcard::before {
  content: ""; position: absolute; inset: 0; border-radius: var(--radius);
  padding: 1.5px; background: linear-gradient(135deg, var(--accent), var(--accent3));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none; opacity: .9;
}
.fcard:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(255,94,58,.22); }
.fire-badge {
  position: absolute; top: 10px; right: 10px; z-index: 2;
  font-size: 11px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent3));
  border: 1.5px solid var(--ink);
  padding: 2px 8px; border-radius: 999px; box-shadow: 2px 2px 0 var(--ink-shadow);
}
.heat-num {
  position: absolute; left: 12px; bottom: 10px; z-index: 2;
  font-size: 11px; font-weight: 700; color: var(--accent3);
  background: var(--tag-bg); border: 1.5px solid var(--ink);
  padding: 1px 7px; border-radius: 999px; box-shadow: 1px 1px 0 var(--ink-shadow);
}

@media (max-width: 640px) {
  .header-actions .primary-btn { padding: 9px 12px; font-size: 13px; }
  .logo-text em { display: none; }
  .cat-bar { top: 58px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .featured-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .footer-meta { text-align: left; }
}