/* 墨径 · 导航站 —— 文人书斋风（宣纸底 / 松墨绿 / 朱砂褐） */

:root {
  --paper: #f4eee2;
  --paper-2: #fbf7ee;
  --paper-card: #fdfaf2;
  --ink: #23372e;
  --ink-2: #4a5f55;
  --ink-3: #7f8d85;
  --cinnabar: #a3392c;
  --cinnabar-2: #c25a44;
  --gold: #a8894f;
  --line: #e0d5bd;
  --line-2: #ece3d1;
  --shadow: 0 2px 10px rgba(60, 48, 30, .07);
  --serif: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", "SimSun", Georgia, serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background-color: var(--paper);
  /* 宣纸底纹：细颗粒 + 淡淡晕染 */
  background-image:
    radial-gradient(circle at 12% 18%, rgba(255, 255, 255, .55), transparent 42%),
    radial-gradient(circle at 88% 8%, rgba(168, 137, 79, .07), transparent 38%),
    radial-gradient(circle at 60% 92%, rgba(35, 55, 46, .05), transparent 45%),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/><feColorMatrix type='saturate' values='0'/></filter><rect width='140' height='140' filter='url(%23n)' opacity='0.035'/></svg>");
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---------- 页眉 ---------- */
.masthead { padding: 46px 0 22px; text-align: center; position: relative; }

.masthead h1 {
  font-family: var(--serif);
  font-size: 34px;
  font-weight: 600;
  letter-spacing: .22em;
  margin: 0 0 8px;
  color: var(--ink);
  text-indent: .22em;
}

.masthead .sub {
  font-size: 12.5px;
  color: var(--ink-3);
  letter-spacing: .16em;
  text-indent: .16em;
}

.rule {
  width: 108px;
  height: 1px;
  margin: 18px auto 0;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
  position: relative;
}
.rule::after {
  content: "";
  position: absolute;
  left: 50%; top: -3px;
  width: 7px; height: 7px;
  margin-left: -3.5px;
  background: var(--cinnabar);
  transform: rotate(45deg);
  opacity: .85;
}

.admin-link {
  position: absolute;
  right: 0; top: 14px;
  font-size: 12px;
  color: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 5px 11px;
  letter-spacing: .1em;
  transition: .18s;
  background: rgba(255, 255, 255, .35);
}
.admin-link:hover { color: var(--cinnabar); border-color: var(--cinnabar-2); }

/* ---------- 搜索 ---------- */
.search {
  max-width: 460px;
  margin: 26px auto 0;
  position: relative;
}
.search input {
  width: 100%;
  padding: 11px 14px 11px 38px;
  font-size: 14px;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 3px;
  outline: none;
  transition: .18s;
}
.search input:focus {
  border-color: var(--cinnabar-2);
  box-shadow: 0 0 0 3px rgba(194, 90, 68, .09);
}
.search input::placeholder { color: #b3b8b2; }
.search .ico {
  position: absolute; left: 14px; top: 50%;
  transform: translateY(-50%);
  color: var(--ink-3); font-size: 14px; pointer-events: none;
}

/* ---------- 分类锚点条 ---------- */
.catbar {
  position: sticky; top: 0; z-index: 20;
  margin-top: 22px;
  padding: 10px 0;
  background: linear-gradient(180deg, var(--paper) 62%, rgba(244, 238, 226, .82));
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line-2);
}
.catbar .inner {
  display: flex; gap: 6px; overflow-x: auto;
  scrollbar-width: none;
}
.catbar .inner::-webkit-scrollbar { display: none; }
.catbar a {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--ink-2);
  padding: 5px 13px;
  border-radius: 2px;
  border: 1px solid transparent;
  letter-spacing: .06em;
  transition: .16s;
  white-space: nowrap;
}
.catbar a:hover { color: var(--cinnabar); border-color: var(--line); background: rgba(255, 255, 255, .5); }
.catbar a.on { color: var(--cinnabar); border-color: var(--cinnabar-2); background: rgba(255, 255, 255, .7); }

/* ---------- 分区 ---------- */
.section { padding: 30px 0 6px; scroll-margin-top: 70px; }
.section h2 {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: .14em;
  margin: 0 0 16px;
  display: flex; align-items: center; gap: 10px;
  color: var(--ink);
}
.section h2::before {
  content: "";
  width: 3px; height: 15px;
  background: var(--cinnabar);
  border-radius: 1px;
}
.section h2 .n {
  font-family: var(--sans);
  font-size: 11.5px;
  color: var(--ink-3);
  letter-spacing: 0;
  font-weight: 400;
}

/* ---------- 卡片 ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(252px, 1fr));
  gap: 13px;
}

.card {
  position: relative;
  display: flex; gap: 12px;
  padding: 14px 15px;
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: 3px;
  transition: .2s cubic-bezier(.2, .7, .3, 1);
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 2px; background: var(--cinnabar);
  transform: scaleY(0); transform-origin: center;
  transition: .2s;
}
.card:hover {
  transform: translateY(-2px);
  border-color: #d8c9a9;
  box-shadow: var(--shadow);
}
.card:hover::before { transform: scaleY(1); }

.seal {
  flex: 0 0 36px;
  width: 36px; height: 36px;
  display: grid; place-items: center;
  background: var(--cinnabar);
  color: #fdf6ec;
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0;
  border-radius: 2px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .22);
  user-select: none;
}
.card:nth-child(even) .seal { background: var(--ink); }
.card:nth-child(3n) .seal { background: var(--gold); }

.card .body { min-width: 0; flex: 1; }
.card .t {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin: 1px 0 3px;
  letter-spacing: .04em;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.card .u {
  font-size: 11.5px;
  color: var(--ink-3);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  letter-spacing: .02em;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.card .d {
  font-size: 12px;
  color: var(--ink-2);
  margin-top: 6px;
  opacity: .88;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.card .go {
  position: absolute; right: 12px; top: 12px;
  font-size: 12px; color: var(--ink-3);
  opacity: 0; transition: .18s;
}
.card:hover .go { opacity: 1; color: var(--cinnabar); }

/* ---------- 空态 / 提示 ---------- */
.empty {
  padding: 46px 0 60px;
  text-align: center;
  color: var(--ink-3);
  font-size: 13.5px;
  font-family: var(--serif);
  letter-spacing: .1em;
}
.notice {
  max-width: 660px; margin: 16px auto 0;
  padding: 9px 14px;
  font-size: 12.5px;
  color: #8a5b2a;
  background: rgba(168, 137, 79, .1);
  border: 1px solid rgba(168, 137, 79, .3);
  border-radius: 3px;
  text-align: center;
}

/* ---------- 页脚 ---------- */
.foot {
  margin-top: 54px;
  padding: 22px 0 46px;
  border-top: 1px solid var(--line-2);
  text-align: center;
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: .08em;
}
.foot .dot { color: var(--cinnabar); margin: 0 6px; }

/* ---------- 后台 ---------- */
.admin-wrap { max-width: 980px; margin: 0 auto; padding: 0 24px 60px; }
.admin-head {
  display: flex; align-items: baseline; gap: 12px;
  padding: 34px 0 16px;
}
.admin-head h1 {
  font-family: var(--serif); font-size: 22px; margin: 0;
  letter-spacing: .18em; font-weight: 600;
}
.admin-head .back { margin-left: auto; font-size: 12.5px; color: var(--ink-3); }
.admin-head .back:hover { color: var(--cinnabar); }

.panel {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 16px 18px;
  margin-bottom: 16px;
}
.panel h3 {
  font-family: var(--serif); font-size: 14.5px; margin: 0 0 12px;
  letter-spacing: .12em; color: var(--ink);
}
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.row > * { flex: 0 0 auto; }

input, select, textarea, button { font-family: var(--sans); font-size: 13px; }
input[type=text], input[type=url], input[type=password], input[type=number], select, textarea {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: #fffdf7;
  color: var(--ink);
  outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--cinnabar-2); }
.f-grow { flex: 1 1 160px; min-width: 0; }

button {
  padding: 7px 14px;
  border: 1px solid var(--line);
  background: #fffdf7;
  color: var(--ink-2);
  border-radius: 2px;
  cursor: pointer;
  transition: .16s;
  letter-spacing: .04em;
}
button:hover { border-color: var(--cinnabar-2); color: var(--cinnabar); }
button.primary { background: var(--cinnabar); border-color: var(--cinnabar); color: #fff8ee; }
button.primary:hover { background: var(--cinnabar-2); color: #fff; }
button.ghost-danger:hover { border-color: var(--cinnabar); color: var(--cinnabar); }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line-2);
  vertical-align: middle;
}
th { font-size: 11.5px; color: var(--ink-3); letter-spacing: .1em; font-weight: 500; }
td.u { font-family: ui-monospace, Menlo, monospace; font-size: 11.5px; color: var(--ink-3); max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
td.ops { white-space: nowrap; text-align: right; }
td.ops button { padding: 4px 9px; font-size: 12px; }

.msg { font-size: 12.5px; margin-top: 10px; color: var(--ink-2); }
.msg.ok { color: #2f6b4f; }
.msg.err { color: var(--cinnabar); }

.hint { font-size: 12px; color: var(--ink-3); line-height: 1.7; }

@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .masthead { padding-top: 34px; }
  .masthead h1 { font-size: 27px; }
  .grid { grid-template-columns: 1fr; }
  .admin-link { position: static; display: inline-block; margin-top: 14px; }
  td.u { max-width: 130px; }
}