:root {
  --blue: #1a73e8;
  --blue-dark: #1557b0;
  --red: #e53935;
  --ink: #222;
  --muted: #777;
  --line: #e6e6e6;
  --bg: #f5f6f8;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
}

.wrap { max-width: 720px; margin: 0 auto; padding: 16px 16px 40px; }

.topbar {
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar .name { font-weight: 600; font-size: 15px; }
.topbar a { color: var(--blue); text-decoration: none; font-size: 13px; }
.nav { display: flex; gap: 10px; flex-wrap: wrap; font-size: 13px; }

.card {
  background: #fff;
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 14px;
  border: 1px solid var(--line);
}

.warn {
  color: var(--blue);
  font-weight: 600;
  text-align: center;
  font-size: 15px;
  padding: 14px 12px;
  background: #eef4ff;
  border-radius: 10px;
  margin-bottom: 14px;
}
.warn-red { color: var(--red); }

.err {
  background: #fff0f0;
  color: var(--red);
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: 14px;
}

label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 5px; }

input[type=text], input[type=password], input[type=number],
select, textarea, input[type=file] {
  width: 100%;
  padding: 11px;
  font-size: 15px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fafafa;
  outline: none;
  font-family: inherit;
}
input:focus, select:focus, textarea:focus { border-color: var(--blue); background: #fff; }
textarea { resize: vertical; }

.btn {
  display: block;
  width: 100%;
  padding: 13px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  background: var(--blue);
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  margin-top: 10px;
}
.btn:active { background: var(--blue-dark); }
.btn-ghost { background: #fff; color: var(--blue); border: 1px solid var(--blue); }
.btn-sm { padding: 8px 13px; font-size: 13px; width: auto; display: inline-block; margin-top: 0; }
.btn-red { background: var(--red); }

.field { margin-bottom: 12px; }

.kv {
  background: #f7f9fc;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  margin-bottom: 10px;
}
.kv .k { font-size: 12px; color: var(--muted); margin-bottom: 2px; }
.kv .v {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 17px;
  word-break: break-all;
  color: #111;
}

.code-btn {
  display: block;
  width: 100%;
  padding: 14px;
  margin-top: 10px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 10px;
  border: 0;
  background: #e8f0fe;
  color: var(--blue);
  cursor: pointer;
}
.code-btn.primary { background: var(--blue); color: #fff; }
.code-btn:disabled { opacity: .6; }

#codeResult {
  margin-top: 12px;
  padding: 14px;
  border-radius: 10px;
  background: #f1f8e9;
  border: 1px solid #c5e1a5;
  text-align: center;
  display: none;
}
#codeResult .num {
  font-family: ui-monospace, monospace;
  font-size: 34px;
  letter-spacing: 8px;
  font-weight: 700;
  color: #2e7d32;
}
#codeResult .tip { font-size: 13px; color: var(--muted); margin-top: 6px; }

details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 12px;
}
details summary { cursor: pointer; font-weight: 600; color: var(--blue); font-size: 15px; }
details ol { padding-left: 20px; margin: 10px 0 0; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 12px;
  background: #eef1f5;
  color: #555;
  margin-right: 4px;
}
.badge.ok { background: #e8f5e9; color: #2e7d32; }
.badge.warn { background: #fff8e1; color: #f57c00; }
.badge.dead { background: #ffebee; color: #c62828; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; white-space: nowrap; }
td.mono { font-family: ui-monospace, monospace; font-size: 12px; word-break: break-all; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }

@media (max-width: 560px) {
  .grid3, .grid4 { grid-template-columns: 1fr 1fr; }
}

.stat {
  background: #f7f9fc;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  text-align: center;
}
.stat .n { font-size: 22px; font-weight: 700; color: var(--blue); }
.stat .l { font-size: 12px; color: var(--muted); }

/* 彩色统计卡片 */
.stat.c1 { background: linear-gradient(135deg,#667eea,#764ba2); border: 0; }
.stat.c2 { background: linear-gradient(135deg,#11998e,#38ef7d); border: 0; }
.stat.c3 { background: linear-gradient(135deg,#f2994a,#f2c94c); border: 0; }
.stat.c4 { background: linear-gradient(135deg,#eb3349,#f45c43); border: 0; }
.stat.c1 .n, .stat.c2 .n, .stat.c3 .n, .stat.c4 .n { color: #fff; text-shadow: 0 1px 2px rgba(0,0,0,.18); }
.stat.c1 .l, .stat.c2 .l, .stat.c3 .l, .stat.c4 .l { color: rgba(255,255,255,.92); }

/* 角色徽章 */
.role-owner { background: linear-gradient(135deg,#667eea,#764ba2); color:#fff; }
.role-admin { background: #eef1f5; color:#555; }

.foot { text-align: center; font-size: 12px; color: var(--muted); margin-top: 20px; }

.hint { font-size: 13px; color: var(--muted); margin-top: 6px; }
h2 { font-size: 16px; margin: 0 0 12px; }

.block-text { white-space: pre-wrap; font-size: 15px; color: #333; }
.block-img {
  width: 100%;
  border-radius: 8px;
  display: block;
  cursor: pointer;
}
.block-video { width: 100%; border-radius: 8px; display: block; }
.block-link {
  display: block;
  text-align: center;
  padding: 12px;
  background: #e8f0fe;
  color: var(--blue);
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
}

code {
  background: #f0f0f3;
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 12px;
}

hr { border: 0; border-top: 1px solid var(--line); }

/* ================= 后台左侧导航布局 ================= */

.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 210px;
  flex: 0 0 210px;
  background: #fff;
  border-right: 1px solid var(--line);
  padding: 16px 10px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar .brand {
  font-weight: 700;
  font-size: 15px;
  padding: 6px 12px 16px;
  color: var(--ink);
  letter-spacing: .3px;
}

.sidebar a {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  color: #444;
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 2px;
  transition: background .12s;
}
.sidebar a:hover { background: #f3f5f8; }
.sidebar a.active {
  background: #e8f0fe;
  color: var(--blue);
  font-weight: 600;
}

.sidebar .sep { height: 1px; background: var(--line); margin: 10px 8px; }

.sidebar .user {
  padding: 12px;
  font-size: 12px;
  color: #999;
  line-height: 2;
}
.sidebar .user .logout {
  display: inline;
  padding: 0;
  color: var(--red);
  font-size: 12px;
  text-decoration: none;
}
.sidebar .user .logout:hover { background: none; text-decoration: underline; }

.main {
  flex: 1;
  min-width: 0;
  padding: 22px 24px 60px;
  max-width: 1080px;
}
.main > .card:first-child { margin-top: 0; }

@media (min-width: 1500px) {
  .main { margin-left: 24px; }
}

@media (max-width: 760px) {
  .layout { flex-direction: column; }
  .sidebar {
    width: 100%;
    flex: none;
    height: auto;
    position: sticky;
    top: 0;
    z-index: 20;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 8px;
    white-space: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
  }
  .sidebar .brand,
  .sidebar .sep,
  .sidebar .user { display: none; }
  .sidebar a {
    display: inline-block;
    margin: 0 4px 0 0;
    padding: 7px 12px;
    font-size: 13px;
  }
  .main { padding: 14px 12px 60px; }
}