:root {
  --color-bg: #f4f4f0;
  --color-surface: #ffffff;
  --color-text: #1a2230;
  --color-accent: #2f6dff;
  --color-accent-700: #1d4fd7;
  --color-danger: #d23f3f;
  --color-divider: #d5d8dd;
  --color-neutral-200: #e7e8ea;
  --color-neutral-500: #8a9099;
  --color-neutral-600: #6b7280;
  --font-heading: system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-heading-weight: 700;
  --space-2: 8px; --space-3: 12px; --space-4: 16px; --space-6: 24px; --space-8: 32px;
  --shadow-md: 0 6px 20px rgba(20, 30, 50, .10);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-heading);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-700); }
h1, h2, h3 { font-weight: var(--font-heading-weight); }
input::placeholder { color: color-mix(in srgb, var(--color-text) 42%, transparent); }

.container { max-width: 1120px; margin: 0 auto; padding: var(--space-8) var(--space-6) var(--space-6); }
.eyebrow {
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--color-accent); font-family: var(--font-heading);
}
.muted { color: color-mix(in srgb, var(--color-text) 55%, transparent); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 13px; line-height: 1; padding: 9px 14px; border: 1px solid var(--color-divider);
  background: var(--color-surface); color: var(--color-text); cursor: pointer;
  transition: border-color 150ms, background 150ms, color 150ms;
}
.btn:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-primary { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-700); border-color: var(--color-accent-700); color: #fff; }
.btn-secondary { background: var(--color-surface); }
.btn-danger { border-color: var(--color-danger); color: var(--color-danger); }
.btn-danger:hover { background: var(--color-danger); color: #fff; border-color: var(--color-danger); }
.btn-icon { padding: 8px; width: 36px; height: 36px; }
.btn-sm { padding: 6px 10px; font-size: 12px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

/* Inputs */
.input, textarea.input {
  width: 100%; font: inherit; font-size: 14px; color: var(--color-text);
  background: var(--color-surface); border: 1px solid var(--color-divider);
  padding: 9px 12px; outline: none; transition: border-color 150ms;
}
.input:focus { border-color: var(--color-accent); }
textarea.input { resize: vertical; min-height: 76px; }

/* Blueprint frame + L-corners */
.blueprint { position: relative; }
.blueprint .corner {
  position: absolute; width: 10px; height: 10px; border: 1px solid var(--color-accent); pointer-events: none;
}
.blueprint .corner.tl { top: 4px; left: 4px; border-right: 0; border-bottom: 0; }
.blueprint .corner.tr { top: 4px; right: 4px; border-left: 0; border-bottom: 0; }
.blueprint .corner.bl { bottom: 4px; left: 4px; border-right: 0; border-top: 0; }
.blueprint .corner.br { bottom: 4px; right: 4px; border-left: 0; border-top: 0; }

/* Cards */
.card {
  position: relative; display: flex; flex-direction: column;
  background: var(--color-surface); border: 1px solid var(--color-divider); padding: var(--space-4);
}
.card-title { font-size: 17px; line-height: 1.25; }
.card-body { font-size: 13px; line-height: 1.5; color: color-mix(in srgb, var(--color-text) 78%, transparent); }
.card-meta { display: flex; align-items: center; gap: 8px; font-size: 12px; }

/* Tags */
.tag {
  display: inline-flex; align-items: center; font-size: 11px; letter-spacing: 0.04em;
  padding: 3px 8px; border: 1px solid var(--color-divider); color: var(--color-neutral-600);
}
.tag-accent { border-color: color-mix(in srgb, var(--color-accent) 40%, transparent); color: var(--color-accent); }

/* Duotone thumbnail (blueprint grid fallback when no image) */
.duotone {
  position: relative; height: 132px; background-color: var(--color-neutral-200);
  background-image: linear-gradient(var(--color-divider) 1px, transparent 1px),
                    linear-gradient(90deg, var(--color-divider) 1px, transparent 1px);
  background-size: 22px 22px; display: grid; place-items: center; color: var(--color-neutral-500);
  overflow: hidden;
}
.duotone img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* Header */
.site-header {
  display: flex; gap: var(--space-6); align-items: center;
  padding-bottom: var(--space-6); border-bottom: 1px solid var(--color-divider); flex-wrap: wrap;
}
.avatar {
  width: 92px; height: 92px; flex: none; display: grid; place-items: center;
  color: var(--color-accent); background: var(--color-surface);
}
.site-header h1 { margin: 6px 0 8px; font-size: 34px; line-height: 1.05; }
.site-header .bio { margin: 0; max-width: 56ch; font-size: 15px; color: color-mix(in srgb, var(--color-text) 78%, transparent); }
.socials { display: flex; gap: var(--space-2); flex: none; }

/* Stats */
.stats { display: flex; align-items: stretch; margin-top: var(--space-4); border: 1px solid var(--color-divider); }
.stats .cell { flex: 1; padding: var(--space-3) var(--space-4); }
.stats .cell + .cell { border-left: 1px solid var(--color-divider); }
.stats .label { font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: color-mix(in srgb, var(--color-text) 55%, transparent); }
.stats .value { font-family: var(--font-heading); font-weight: var(--font-heading-weight); font-size: 28px; line-height: 1.1; font-variant-numeric: tabular-nums; }

/* Controls */
.controls { display: flex; gap: var(--space-4); align-items: center; flex-wrap: wrap; margin: var(--space-4) 0 var(--space-3); }
.search { position: relative; flex: 1; min-width: 220px; max-width: 340px; }
.search .icon { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); display: flex; color: var(--color-neutral-600); pointer-events: none; }
.search .input { padding-left: 34px; padding-right: 34px; }
.search .clear { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); display: flex; padding: 4px; background: transparent; border: 0; cursor: pointer; color: var(--color-neutral-600); }
.chips { display: flex; gap: var(--space-2); flex-wrap: wrap; margin-left: auto; }
.chips .btn span { font-size: 11px; opacity: .6; font-variant-numeric: tabular-nums; }
.result-count { font-size: 12px; letter-spacing: 0.04em; color: color-mix(in srgb, var(--color-text) 55%, transparent); margin-bottom: var(--space-4); }

/* Grid */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(252px, 1fr)); gap: var(--space-4); }
.grid .card { gap: var(--space-3); transition: border-color 180ms, transform 180ms, box-shadow 180ms; }
.grid .card:hover { border-color: var(--color-accent); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.grid .num { font-family: var(--font-heading); font-size: 12px; letter-spacing: 0.12em; color: color-mix(in srgb, var(--color-text) 42%, transparent); font-variant-numeric: tabular-nums; }
/* 整张卡片即链接：继承正文颜色，别让标题/描述变成蓝色链接样式 */
.grid .card-link { color: inherit; cursor: pointer; }
.grid .card-link:hover { color: inherit; }
.grid .card-link:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

.empty { padding: var(--space-8); text-align: center; border: 1px dashed var(--color-divider); color: color-mix(in srgb, var(--color-text) 55%, transparent); }
.site-footer { margin-top: var(--space-8); padding-top: var(--space-4); border-top: 1px solid var(--color-divider); display: flex; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; font-size: 12px; color: color-mix(in srgb, var(--color-text) 50%, transparent); }

/* Admin panel */
.panel { display: flex; flex-direction: column; gap: var(--space-6); }
.panel section { background: var(--color-surface); border: 1px solid var(--color-divider); padding: var(--space-6); }
.panel h2 { margin: 0 0 var(--space-4); font-size: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: var(--space-3); }
.field label { font-size: 12px; letter-spacing: 0.04em; color: var(--color-neutral-600); }
.form-actions { display: flex; gap: var(--space-2); margin-top: var(--space-2); }
.row { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3); border: 1px solid var(--color-divider); background: var(--color-surface); }
.row + .row { margin-top: var(--space-2); }
.row .row-main { flex: 1; min-width: 0; }
.row .row-title { font-weight: var(--font-heading-weight); font-size: 14px; }
.row .row-sub { font-size: 12px; color: var(--color-neutral-600); }
.row .row-actions { display: flex; gap: 6px; flex: none; }
.login-wrap { max-width: 360px; margin: 12vh auto 0; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--color-text); color: #fff; padding: 10px 16px; font-size: 13px; box-shadow: var(--shadow-md); opacity: 0; transition: opacity 200ms; pointer-events: none; }
.toast.show { opacity: 1; }
.toast.error { background: var(--color-danger); }
[hidden] { display: none !important; }