/* ============ 设计变量（浅色 / 深色） ============ */
:root{
  --bg:#f4f6f8; --surface:#ffffff; --surface-2:#f8fafc;
  --text:#16191d; --muted:#64748b; --border:#e2e8f0;
  --accent:#0f766e; --accent-hover:#0d655e; --accent-soft:#ccfbf1; --accent-ink:#ffffff;
  --danger:#dc2626; --danger-hover:#b91c1c; --danger-soft:#fee2e2;
  --star:#f59e0b; --star-off:#cbd5e1;
  --radius:12px; --shadow:0 1px 3px rgb(15 23 42/.08),0 4px 12px rgb(15 23 42/.06);
  --focus-ring:0 0 0 3px rgb(15 118 110/.25);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0b0f14; --surface:#131a23; --surface-2:#0f141c;
    --text:#e6edf3; --muted:#8b98a9; --border:#26303d;
    --accent:#14b8a6; --accent-hover:#0f766e; --accent-soft:#134e4a; --accent-ink:#04211e;
    --danger:#f87171; --danger-hover:#ef4444; --danger-soft:#3f1d1d;
    --star:#fbbf24; --star-off:#3b4757;
    --shadow:0 1px 3px rgb(0 0 0/.4),0 4px 12px rgb(0 0 0/.35);
    --focus-ring:0 0 0 3px rgb(20 184 166/.3);
  }
}
/* ============ 基础 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; min-height:100vh; background:var(--bg); color:var(--text);
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  line-height:1.5;
}
.skip{position:absolute;left:-9999px;top:0;background:var(--accent);color:#fff;padding:.5rem 1rem;z-index:100;border-radius:0 0 8px 0}
.skip:focus{left:0;color:#fff}
.wrap{max-width:1200px;margin:0 auto;padding:0 1rem 3rem}
/* ============ 页眉 ============ */
.site-header{
  background:linear-gradient(120deg,#0f766e,#0891b2);color:#fff;
  padding:1.4rem 1rem;text-align:center;margin-bottom:1.25rem;
  box-shadow:var(--shadow);
}
.site-header h1{margin:0;font-size:clamp(1.25rem,3.5vw,1.75rem);letter-spacing:.02em}
.site-header p{margin:.25rem 0 0;opacity:.85;font-size:.85rem}
/* ============ 面板 / 表单 ============ */
.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1rem;margin-bottom:1rem}
.panel h2{margin:0 0 .75rem;font-size:1rem;font-weight:650}
.form-row{display:flex;flex-wrap:wrap;gap:.6rem;align-items:end}
.field{display:flex;flex-direction:column;gap:.25rem;min-width:0}
.field.grow{flex:1 1 180px}
.field label{font-size:.78rem;color:var(--muted);font-weight:600}
input[type="url"],input[type="text"],input[type="number"],select{
  padding:.55rem .7rem;border:1px solid var(--border);border-radius:8px;background:var(--surface);
  color:var(--text);font:inherit;min-width:0;width:100%;
}
input:focus-visible,select:focus-visible,button:focus-visible{outline:none;box-shadow:var(--focus-ring);border-color:var(--accent)}
.btn{
  display:inline-flex;align-items:center;gap:.4rem;border:1px solid transparent;border-radius:8px;
  padding:.55rem .9rem;font:inherit;font-weight:600;cursor:pointer;color:var(--accent-ink);background:var(--accent);
  transition:background .15s ease,transform .05s ease;white-space:nowrap;
}
.btn:hover{background:var(--accent-hover)}
.btn:active{transform:translateY(1px)}
.btn.secondary{background:var(--surface-2);color:var(--text);border-color:var(--border)}
.btn.secondary:hover{background:var(--border)}
.btn.danger{background:var(--danger)}
.btn.danger:hover{background:var(--danger-hover)}
.btn.ghost{background:transparent;color:var(--muted);border-color:var(--border);padding:.4rem .7rem;font-weight:500}
.btn.ghost:hover{color:var(--text);background:var(--surface-2)}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}
.btn-row{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;margin-top:.75rem}
.btn-row .spacer{flex:1}
.hint{font-size:.8rem;color:var(--muted)}
/* ============ 工具栏 ============ */
.toolbar{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center;margin-bottom:1rem}
.toolbar .search{flex:1 1 220px;position:relative}
.toolbar .search input{padding-left:2.2rem}
.toolbar .search svg{position:absolute;left:.7rem;top:50%;transform:translateY(-50%);width:1.05rem;height:1.05rem;color:var(--muted);pointer-events:none}
.segmented{display:inline-flex;border:1px solid var(--border);border-radius:8px;overflow:hidden;background:var(--surface)}
.segmented button{border:0;background:transparent;color:var(--muted);padding:.55rem .9rem;font:inherit;font-weight:600;cursor:pointer}
.segmented button[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink)}
/* ============ 卡片网格 ============ */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:.9rem}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:.9rem;display:flex;flex-direction:column;gap:.6rem;
  transition:transform .12s ease,box-shadow .12s ease;
}
.card:hover{transform:translateY(-2px)}
.card.dragging{opacity:.4}
.card.drop-before{box-shadow:0 -3px 0 var(--accent)}
.card-link{display:flex;align-items:center;gap:.7rem;text-decoration:none;color:inherit;min-width:0}
.avatar{
  flex:none;width:2.4rem;height:2.4rem;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--accent),#0891b2);color:#fff;font-weight:700;font-size:1.05rem;
}
.card-title{font-weight:650;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.card-host{font-size:.75rem;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.card-text{min-width:0}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:.5rem}
.stars{display:inline-flex;gap:2px}
.stars button{
  border:0;background:none;padding:.15rem;cursor:pointer;color:var(--star-off);
  font-size:1.15rem;line-height:1;transition:transform .1s ease,color .1s ease;
}
.stars button.on{color:var(--star)}
.stars button:hover{transform:scale(1.2)}
.fav-btn{border:1px solid var(--border);background:var(--surface-2);border-radius:8px;width:2rem;height:2rem;
  display:grid;place-items:center;cursor:pointer;color:var(--star-off);font-size:1.05rem}
.fav-btn.on{color:var(--star);border-color:var(--star)}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:.5rem;border-top:1px solid var(--border);padding-top:.55rem}
.cat-badge{font-size:.72rem;color:var(--muted);background:var(--surface-2);border:1px solid var(--border);
  padding:.15rem .55rem;border-radius:999px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:7rem}
.card-actions{display:flex;gap:.35rem}
.icon-btn{border:1px solid var(--border);background:var(--surface-2);color:var(--muted);border-radius:7px;
  width:1.9rem;height:1.9rem;display:grid;place-items:center;cursor:pointer}
.icon-btn:hover{color:var(--text);border-color:var(--muted)}
.icon-btn.danger:hover{color:var(--danger);border-color:var(--danger)}
.icon-btn svg{width:.95rem;height:.95rem}
.empty{grid-column:1/-1;text-align:center;color:var(--muted);padding:2.5rem 1rem;border:1px dashed var(--border);border-radius:var(--radius)}
/* ============ 表格 ============ */
.table-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
table{width:100%;border-collapse:collapse;font-size:.9rem}
th,td{text-align:left;padding:.6rem .8rem;border-bottom:1px solid var(--border);vertical-align:middle}
thead th{background:var(--surface-2);font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;white-space:nowrap}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:var(--surface-2)}
td.url{max-width:22rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted)}
/* ============ 对话框 ============ */
dialog{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);
  padding:1.25rem;box-shadow:var(--shadow);max-width:min(30rem,92vw);width:100%}
dialog::backdrop{background:rgb(0 0 0/.45);backdrop-filter:blur(2px)}
dialog h2{margin:0 0 1rem;font-size:1.1rem}
dialog .form-row{margin-bottom:.9rem}
dialog .btn-row{margin-top:1rem;justify-content:flex-end}
.checkline{display:flex;align-items:center;gap:.5rem;font-size:.9rem}
/* ============ Toast ============ */
#toast{
  position:fixed;left:50%;bottom:1.5rem;transform:translate(-50%,.5rem);z-index:90;
  background:#111827;color:#f9fafb;padding:.65rem 1.1rem;border-radius:999px;font-size:.88rem;
  opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;box-shadow:var(--shadow);
  max-width:90vw;text-align:center;
}
@media (prefers-color-scheme:dark){#toast{background:#e6edf3;color:#111827}}
#toast.show{opacity:1;transform:translate(-50%,0)}
/* ============ 打印 ============ */
@media print{.site-header,.panel,.toolbar,#toast{display:none}.wrap{max-width:none}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}}