:root {
  --bg: #eef4fb;
  --card: rgba(255, 255, 255, 0.74);
  --card-solid: #ffffff;
  --line: rgba(120, 160, 220, 0.2);
  --text: #1f2937;
  --text2: #55617a;
  --muted: #94a3b8;
  --accent: #0ea5e9;
  --accent2: #6366f1;
  --green: #16a34a;
  --taobao: #ff6a00;
  --pdd: #e02e24;
  --jd: #e1251b;
  --shadow: 0 10px 34px rgba(69, 110, 180, 0.13);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; }
body {
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  padding-bottom: env(safe-area-inset-bottom);
}

.bg { position: fixed; inset: 0; overflow: hidden; pointer-events: none; z-index: 0; }
.orb { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .55; animation: float 18s ease-in-out infinite; }
.orb-1 { width: 420px; height: 420px; top: -140px; left: -120px; background: radial-gradient(circle, rgba(14,165,233,.42), transparent 70%); }
.orb-2 { width: 380px; height: 380px; top: 28%; right: -140px; background: radial-gradient(circle, rgba(99,102,241,.34), transparent 70%); animation-delay: -6s; }
.orb-3 { width: 320px; height: 320px; bottom: -120px; left: 18%; background: radial-gradient(circle, rgba(6,182,212,.3), transparent 70%); animation-delay: -11s; }
.grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(14,165,233,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14,165,233,.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.7), transparent 85%);
}
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(24px, -18px) scale(1.05); }
  66% { transform: translate(-18px, 14px) scale(.96); }
}

.preview-badge {
  position: fixed; top: 12px; right: 12px; z-index: 50;
  padding: 6px 12px; border-radius: 999px;
  background: rgba(17, 24, 39, .72); color: #fff;
  font-size: 12px; letter-spacing: .04em;
  backdrop-filter: blur(10px);
}

.hero {
  position: relative; z-index: 1;
  padding: 38px 20px 22px;
  text-align: center;
}
.hero-inner { max-width: 760px; margin: 0 auto; }
.logo { display: flex; align-items: center; justify-content: center; gap: 10px; }
.logo-icon { font-size: 34px; filter: drop-shadow(0 6px 16px rgba(14,165,233,.3)); }
.logo h1 {
  margin: 0;
  font-size: 28px; letter-spacing: .02em;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.sub {
  margin: 12px auto 0; max-width: 620px;
  color: var(--text2); font-size: 14px; line-height: 1.7;
}

main { position: relative; z-index: 1; max-width: 900px; margin: 0 auto; padding: 0 16px 36px; }

.toolbar { position: sticky; top: 0; z-index: 20; padding: 10px 0 8px; backdrop-filter: blur(14px); }
.search-wrap {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-radius: 14px;
  background: var(--card); border: 1px solid var(--line);
  box-shadow: 0 6px 20px rgba(69,110,180,.08);
}
.search-wrap svg { width: 18px; height: 18px; color: var(--muted); flex: 0 0 auto; }
#search {
  width: 100%; border: 0; outline: 0; background: transparent;
  font-size: 15px; color: var(--text);
}

.tabs { display: flex; gap: 8px; overflow-x: auto; padding: 10px 0 4px; -webkit-overflow-scrolling: touch; }
.tabs::-webkit-scrollbar { display: none; }
.tab {
  flex: 0 0 auto; display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 14px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line); background: rgba(255,255,255,.72);
  color: var(--text2); font-size: 14px; white-space: nowrap;
  transition: all .2s;
}
.tab:hover { border-color: rgba(14,165,233,.34); color: var(--accent); }
.tab .count { font-size: 11px; color: var(--muted); background: rgba(15,23,42,.06); padding: 1px 7px; border-radius: 999px; }
.tab.active {
  color: #fff; border-color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 8px 22px rgba(79,109,241,.28);
}
.tab.active .count { color: #fff; background: rgba(255,255,255,.22); }

.list { display: flex; flex-direction: column; gap: 14px; }
.cat {
  border-radius: 18px; overflow: hidden;
  background: var(--card); border: 1px solid var(--line);
  box-shadow: var(--shadow); backdrop-filter: blur(14px);
}
.cat-head {
  display: flex; align-items: center; gap: 10px;
  padding: 15px 16px; cursor: pointer; user-select: none;
}
.cat-dot { width: 9px; height: 9px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent2)); box-shadow: 0 0 10px rgba(14,165,233,.6); }
.cat-name { font-size: 16px; font-weight: 600; }
.cat-count { margin-left: auto; font-size: 12px; color: var(--muted); }
.chev { width: 18px; height: 18px; color: var(--muted); transition: transform .25s; }
.cat.collapsed .chev { transform: rotate(-90deg); }
.cat-body { display: grid; gap: 10px; padding: 0 14px 14px; }
.cat.collapsed .cat-body { display: none; }

.card {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; border-radius: 14px;
  background: var(--card-solid); border: 1px solid rgba(120,160,220,.14);
  box-shadow: 0 2px 10px rgba(31,42,68,.05);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.card:hover {
  transform: translateY(-2px);
  border-color: rgba(14,165,233,.3);
  box-shadow: 0 10px 28px rgba(69,110,180,.16);
}
.m-head { margin-bottom: 3px; line-height: 1.6; }
.m-name { display: inline; font-size: 15px; font-weight: 600; line-height: 1.6; }
.m-main { flex: 1; min-width: 0; }
.m-link {
  margin-top: 2px; font-size: 12px; color: var(--muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.badge {
  display: inline-block; margin-left: 6px; vertical-align: 2px;
  font-size: 11px; color: #fff; font-weight: 600;
  padding: 2px 8px; border-radius: 7px;
}
.badge-taobao { background: var(--taobao); }
.badge-pdd { background: var(--pdd); }
.badge-jd { background: var(--jd); }
.copy-btn {
  flex: 0 0 auto; display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 14px; border: 0; border-radius: 12px; cursor: pointer;
  color: #fff; font-size: 13px; font-weight: 600;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 8px 20px rgba(79,109,241,.26);
  transition: transform .15s, box-shadow .2s, background .2s;
}
.copy-btn:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(79,109,241,.34); }
.copy-btn svg { width: 15px; height: 15px; }
.copy-btn.copied { background: linear-gradient(135deg, #22c55e, #16a34a); box-shadow: 0 8px 20px rgba(22,163,74,.28); }

.empty { padding: 70px 20px; text-align: center; color: var(--muted); font-size: 14px; }
.foot { padding: 26px 0 10px; text-align: center; color: var(--muted); font-size: 12px; }

.toast {
  position: fixed; left: 50%; bottom: 38px; z-index: 80;
  transform: translate(-50%, 18px);
  max-width: 86vw; padding: 10px 18px; border-radius: 999px;
  background: rgba(17,24,39,.9); color: #fff; font-size: 13px;
  opacity: 0; pointer-events: none; transition: all .25s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 600px) {
  .hero { padding: 28px 16px 16px; }
  .logo h1 { font-size: 23px; }
  .sub { font-size: 13px; }
  .card { flex-wrap: wrap; }
  .m-main { flex: 1 1 100%; }
  .m-link { white-space: normal; word-break: break-all; }
  .copy-btn { width: 100%; justify-content: center; }
}