/* KinKeep 协议中心 共享样式 */
:root {
  color-scheme: light;
  --paper: #f5f8fb;
  --ink: #10243f;
  --muted: #5f7187;
  --line: #d7e1eb;
  --blue: #3267a8;
  --blue-dark: #24507f;
  --amber: #d38b2c;
  --white: #ffffff;
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  margin: 0;
  min-width: 280px;
  background:
    linear-gradient(rgba(50, 103, 168, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(50, 103, 168, 0.045) 1px, transparent 1px),
    var(--paper);
  background-size: 32px 32px;
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  line-height: 1.75;
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); text-decoration: underline; }

.container {
  width: min(920px, calc(100% - 40px));
  margin: 0 auto;
}

/* 顶部导航 */
.site-header {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--white) 92%, transparent);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(6px);
}

.site-header .bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  color: var(--ink);
}

.brand:hover { text-decoration: none; }

.brand .logo {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--blue), #6ba3d8);
  color: var(--white);
  display: grid;
  place-items: center;
  font-size: 17px;
  font-weight: 700;
  flex: none;
}

.brand .name { font-size: 17px; }
.brand .name small { display: block; font-weight: 400; font-size: 12px; color: var(--muted); }

.top-nav { display: flex; gap: 4px; flex-wrap: wrap; }

.top-nav a {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--muted);
}

.top-nav a:hover { background: rgba(50, 103, 168, 0.08); color: var(--blue-dark); text-decoration: none; }

.top-nav a.active { background: var(--blue); color: var(--white); }

/* 首页 */
.hero {
  padding: clamp(40px, 8vw, 72px) 0 24px;
  text-align: center;
}

.hero h1 { font-size: clamp(26px, 5vw, 38px); margin: 0 0 12px; }
.hero p.lead { color: var(--muted); font-size: 16px; max-width: 640px; margin: 0 auto; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  padding: 24px 0 48px;
}

.card {
  display: block;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--white);
  padding: 22px 20px;
  color: var(--ink);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(16, 36, 63, 0.10);
}

.card .icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(50, 103, 168, 0.10);
  display: grid;
  place-items: center;
  font-size: 20px;
  margin-bottom: 12px;
}

.card h3 { margin: 0 0 6px; font-size: 17px; }
.card p { margin: 0; font-size: 13.5px; color: var(--muted); }

/* 文档页 */
.doc {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--white);
  box-shadow: 0 18px 48px rgba(16, 36, 63, 0.07);
  padding: clamp(24px, 5vw, 56px);
  margin: 28px 0 56px;
}

.doc header.doc-head { border-bottom: 1px solid var(--line); padding-bottom: 18px; margin-bottom: 10px; }
.doc h1 { font-size: clamp(22px, 4vw, 30px); margin: 0 0 8px; }
.doc .meta { color: var(--muted); font-size: 13.5px; }
.doc .meta span { margin-right: 18px; }

.doc h2 {
  font-size: 19px;
  margin: 34px 0 10px;
  padding-left: 12px;
  border-left: 4px solid var(--blue);
  line-height: 1.4;
}

.doc h3 { font-size: 16px; margin: 22px 0 8px; }

.doc p, .doc li { font-size: 14.5px; }

.doc ul, .doc ol { padding-left: 22px; margin: 8px 0; }

.doc li { margin: 4px 0; }

.doc strong { color: var(--ink); }

.notice {
  border: 1px solid #ecd9b8;
  border-radius: 12px;
  background: #fdf6ea;
  color: #7a5a1e;
  padding: 12px 16px;
  font-size: 13.5px;
  margin: 14px 0;
}

.notice b { color: #9a6d15; }

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  margin: 14px 0;
  display: block;
  overflow-x: auto;
}

table.data th, table.data td {
  border: 1px solid var(--line);
  padding: 9px 12px;
  text-align: left;
  vertical-align: top;
  min-width: 90px;
}

table.data th { background: #eef4fa; white-space: nowrap; }

.toc {
  border: 1px dashed var(--line);
  border-radius: 14px;
  background: #fafcff;
  padding: 14px 18px;
  margin: 18px 0 8px;
  font-size: 13.5px;
}

.toc b { display: block; margin-bottom: 6px; }
.toc ol { columns: 2; column-gap: 32px; margin: 0; padding-left: 20px; }
@media (max-width: 640px) { .toc ol { columns: 1; } }
.toc a { color: var(--muted); }
.toc a:hover { color: var(--blue); }

.contact-box {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fafcff;
  padding: 16px 20px;
  margin: 16px 0;
}

.contact-box p { margin: 4px 0; }

/* 页脚 */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 26px 0 40px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.site-footer .company { color: var(--ink); font-weight: 500; }
.site-footer p { margin: 6px 0; }
.site-footer a { color: var(--muted); text-decoration: underline; }

@media print {
  .site-header, .site-footer .links, .toc { display: none; }
  body { background: #fff; }
  .doc { border: none; box-shadow: none; margin: 0; padding: 0; }
}