:root {
  /* 默认：白底磨砂（浅色） */
  --bg: #eef1f8;
  --bg2: #ffffff;
  --card: rgba(255,255,255,0.62);
  --card-hover: rgba(255,255,255,0.92);
  --border: rgba(23,28,48,0.10);
  --text: #1b2130;
  --muted: #6b7488;
  --accent: #5b6cff;
  --accent2: #8a5bff;
  --radius: 16px;
  --ok: #16a34a;
  --err: #dc2626;
  --warn: #d97706;
  --shadow: 0 10px 30px rgba(30,40,90,0.10);
  --topbar-bg: rgba(255,255,255,0.55);
  --glow1: rgba(91,108,255,0.20);
  --glow2: rgba(138,91,255,0.16);
  --glow3: rgba(52,199,189,0.08);
}

/* 深色背景 */
body.bg-dark {
  --bg: #0e1117;
  --bg2: #141824;
  --card: rgba(255,255,255,0.04);
  --card-hover: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.08);
  --text: #eef0f6;
  --muted: #8b93a7;
  --accent: #6c7cff;
  --accent2: #9a6cff;
  --glow3: rgba(52,211,153,0.06);
  --shadow: 0 8px 30px rgba(0,0,0,0.35);
  --topbar-bg: rgba(14,17,23,0.72);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  background-color: var(--bg);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
}
body.bg-frost, body.bg-gradient, body.bg-color {
  background-image: var(--custom-grad, none);
  background-color: var(--custom-bg, var(--bg));
}
body.bg-image {
  background-image: linear-gradient(rgba(255,255,255,0.08), rgba(255,255,255,0.08)), var(--custom-bg, none);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
body::-webkit-scrollbar { width: 10px; }
body::-webkit-scrollbar-thumb { background: rgba(120,130,160,0.35); border-radius: 8px; }
body::-webkit-scrollbar-track { background: transparent; }

.bg-glow {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(600px 400px at 15% 0%, var(--glow1), transparent 60%),
    radial-gradient(600px 400px at 85% 10%, var(--glow2), transparent 60%),
    radial-gradient(500px 400px at 50% 100%, var(--glow3), transparent 60%);
}

/* ---------- topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 28px; gap: 16px;
  background: var(--topbar-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo-name { font-size: 20px; font-weight: 700; letter-spacing: .5px;
  background: linear-gradient(90deg,var(--text),var(--muted)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.top-actions { display: flex; align-items: center; gap: 10px; }

.search-wrap { position: relative; }
.search-wrap input {
  width: 220px; padding: 9px 14px 9px 36px; border-radius: 12px;
  background: var(--card); border: 1px solid var(--border); color: var(--text);
  font-size: 14px; outline: none; transition: .2s;
}
.search-wrap input:focus { border-color: var(--accent); background: var(--card-hover); }
.search-wrap svg { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--muted); }

.btn {
  padding: 9px 18px; border-radius: 12px; border: 1px solid var(--border);
  background: var(--card); color: var(--text); font-size: 14px; cursor: pointer;
  transition: .2s; display: inline-flex; align-items: center; gap: 6px;
}
.btn:hover { background: var(--card-hover); }
.btn.primary { background: linear-gradient(135deg,var(--accent),var(--accent2)); border: none; color: #fff; font-weight: 600; }
.btn.primary:hover { filter: brightness(1.1); }
.btn.logout { color: var(--err); }

/* ---------- content ---------- */
.content { max-width: 1180px; margin: 0 auto; padding: 34px 24px 80px; }

.group { margin-bottom: 44px; animation: fadeUp .5s ease both; }
.group-head { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.group-head h2 { font-size: 20px; font-weight: 700; display: flex; align-items: center; gap: 10px; }
.gico { font-size: 24px; }
.g-ico { position: relative; display:inline-block; width: 26px; height: 26px; vertical-align: middle; margin-right: 6px; overflow:hidden; border-radius:6px; }
.g-ico .fav { position:absolute; inset:0; width:100%; height:100%; object-fit: contain; object-position:center; }
.g-ico .ico { display:inline-flex; align-items:center; justify-content:center; width:100%; height:100%; }
.count { font-size: 12px; color: var(--muted); background: var(--card); padding: 3px 10px; border-radius: 20px; border:1px solid var(--border); }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }

.link-card {
  position: relative; display: flex; align-items: center; gap: 14px;
  padding: 16px; border-radius: var(--radius); cursor: pointer;
  background: var(--card); border: 1px solid var(--border);
  transition: transform .2s, background .2s, box-shadow .2s, border-color .2s;
  overflow: hidden;
}
.link-card::before {
  content:''; position:absolute; left:0; top:0; bottom:0; width:3px;
  background: var(--accent); opacity:0; transition:.2s;
}
.link-card:hover { transform: translateY(-4px); background: var(--card-hover); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.link-card:hover::before { opacity: 1; }
.link-card.hidden { display: none; }

.ic { position: relative; width: 46px; height: 46px; flex-shrink: 0; border-radius: 12px; display:flex; align-items:center; justify-content:center;
  background: color-mix(in srgb, var(--accent) 16%, transparent); border:1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  font-size: 24px; overflow:hidden; }
.fav { position:absolute; inset:0; width:100%; height:100%; object-fit: contain; object-position: center; }
.ico { font-size: 22px; }

.info { min-width: 0; flex:1; }
.name { font-size: 15px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.desc { font-size: 12.5px; color: var(--muted); margin-top: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); flex-shrink:0; box-shadow: 0 0 6px currentColor; }
.status-dot.checking { background: var(--warn); box-shadow: 0 0 6px var(--warn); animation: pulse 1s infinite; }
.status-dot.on { background: var(--ok); box-shadow: 0 0 6px var(--ok); }
.status-dot.off { background: var(--err); box-shadow: 0 0 6px var(--err); }
@keyframes pulse { 50% { opacity: .4; } }

.empty { text-align:center; padding: 80px 0; color: var(--muted); }
.empty h2 { font-size: 24px; margin-bottom: 10px; color: var(--text); }

.empty-link {
  grid-column: 1 / -1; padding: 22px; text-align: center;
  color: var(--muted); font-size: 13px; border-radius: var(--radius);
  border: 1px dashed var(--border); background: rgba(255,255,255,0.02);
}

/* ---------- modal ---------- */
.modal {
  position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center;
  background: rgba(8,10,16,0.7); backdrop-filter: blur(6px);
  animation: fade .15s ease;
}
@keyframes fade { from{opacity:0} to{opacity:1} }
.modal-card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: 20px;
  padding: 26px; width: min(94vw, 720px); max-height: 86vh; overflow-y: auto;
  box-shadow: var(--shadow); animation: pop .2s ease;
}
.login-card { width: min(92vw, 380px); }
@keyframes pop { from{transform:scale(.96); opacity:0} to{transform:scale(1); opacity:1} }
.modal-card h2 { font-size: 20px; margin-bottom: 6px; }
.modal-card .sub { color: var(--muted); font-size: 13px; margin-bottom: 18px; }
.modal-card input {
  width: 100%; padding: 12px 14px; border-radius: 12px; margin-bottom: 12px;
  background: var(--card); border: 1px solid var(--border); color: var(--text); font-size: 14px; outline: none;
}
.modal-card input:focus { border-color: var(--accent); }
.err { color: var(--err); font-size: 13px; min-height: 18px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 6px; }
.modal-actions.foot { width:100%; border-top: 1px solid var(--border); padding-top: 16px; }

/* ---------- icon picker ---------- */
.icon-card { max-width: 560px; }
.icon-tabs { display: flex; gap: 8px; margin-bottom: 18px; border-bottom: 1px solid var(--border); padding-bottom: 12px; }
.icon-tab { padding: 8px 14px; border-radius: 10px; border: 1px solid var(--border); background: var(--card); color: var(--muted); cursor: pointer; font-size: 13px; transition: .2s; }
.icon-tab:hover { color: var(--text); }
.icon-tab.active { background: linear-gradient(135deg,var(--accent),var(--accent2)); color: #fff; border: none; font-weight: 600; }
.icon-pane { min-height: 120px; }
.icon-pane .sub { margin-bottom: 12px; }
.icon-card input[type=text] { width: 100%; }
.icon-card input[type=file] { width: 100%; padding: 14px; border-radius: 12px; border: 1px dashed var(--border); background: var(--card); color: var(--muted); cursor: pointer; margin-bottom: 12px; font-size: 13px; }
.emoji-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(44px,1fr)); gap: 8px; max-height: 260px; overflow-y: auto; }
.emoji { font-size: 24px; padding: 8px 0; border-radius: 12px; border: 1px solid transparent; background: var(--card); cursor: pointer; transition: .15s; }
.emoji:hover { background: var(--card-hover); border-color: var(--accent); transform: scale(1.12); }

/* icon pick button in editor */
.icon-pick {
  position: relative; width: 40px; height: 40px; flex-shrink: 0; border-radius: 10px; border: 1px solid var(--border);
  background: var(--card); cursor: pointer; display: flex; align-items: center; justify-content: center;
  font-size: 20px; overflow: hidden; transition: .15s;
}
.icon-pick:hover { border-color: var(--accent); background: var(--card-hover); }
.icon-pick .fav { width: 22px; height: 22px; }
.empty-link.small { font-size: 12px; padding: 12px; }

/* ---------- editor ---------- */
.ed-group { border: 1px solid var(--border); border-radius: 14px; padding: 16px; margin-bottom: 14px; background: rgba(255,255,255,0.02); }
.ed-group-head { display:flex; gap: 8px; margin-bottom: 12px; align-items:center; }
.ed-group-head input { margin-bottom: 0; flex: 1; }
.ed-group-head .gico-input { width: 60px; text-align:center; }
.ed-links { display: flex; flex-direction: column; gap: 8px; }
.ed-link { display: flex; gap: 8px; align-items: center; }
.ed-link input { margin-bottom: 0; padding: 9px 12px; }
.ed-link .nm { flex: 1.2; }
.ed-link .ur { flex: 1.6; }
.ed-link .ic2 { width: 56px; }
.ed-link .cl { width: 76px; }
.ed-link .color-btn { width: 38px; height: 38px; flex-shrink:0; border-radius: 9px; border: 1px solid var(--border); background: var(--cur); cursor: pointer; position:relative; }
.ed-link .color-btn::after { content: '🎨'; position:absolute; inset:0; display:flex; align-items:center; justify-content:center; font-size:15px; opacity:.9; text-shadow:0 1px 2px rgba(0,0,0,.25); }
.ed-link .color-btn:hover { border-color: var(--accent); box-shadow: 0 0 0 2px var(--card-hover); }
.color-swatches { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
.color-swatches .swatch { height: 38px; border-radius: 9px; border: 2px solid #fff; box-shadow: 0 0 0 1px var(--border), 0 2px 4px rgba(0,0,0,.08); cursor: pointer; transition: transform .12s, box-shadow .12s; }
.color-swatches .swatch:hover { transform: translateY(-2px); box-shadow: 0 0 0 2px var(--accent), 0 4px 8px rgba(0,0,0,.14); }
.del { background: none; border: none; color: var(--err); font-size: 20px; cursor: pointer; padding: 4px 8px; border-radius: 8px; }
.del:hover { background: rgba(248,113,113,0.15); }
.add-row { display:flex; gap:10px; margin-top: 12px; }
.icon-btn { padding: 9px 14px; border-radius: 12px; border: 1px dashed var(--border); background: none; color: var(--muted); cursor: pointer; font-size: 13px; transition:.2s; }
.icon-btn:hover { color: var(--text); border-color: var(--accent); }

/* ---------- background picker ---------- */
.bg-card { max-width: 460px; }
.bg-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.bg-opt {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  padding: 12px 8px; border-radius: 14px; cursor: pointer;
  background: var(--card); border: 1px solid var(--border); color: var(--text);
  font-size: 13px; transition: .15s;
}
.bg-opt:hover { border-color: var(--accent); transform: translateY(-2px); }
.bg-thumb { width: 100%; height: 56px; border-radius: 10px; border: 1px solid var(--border); display:flex; align-items:center; justify-content:center; }
.frost-th { background: linear-gradient(145deg,#f2f4fb, #ffffff); }
.dark-th { background: linear-gradient(145deg,#0e1117,#223); }
.grad-th { background: linear-gradient(135deg,#667eea,#764ba2); }
.color-th { background: #e0e7ff; }
.img-th { background: linear-gradient(145deg,#dbeafe,#f3e8ff); font-size: 22px; }

@media (max-width: 640px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .search-wrap input { width: 120px; }
  .topbar { padding: 12px 16px; }
}