:root {
  --brand: #14B8A6;
  --bg: #ffffff;
  --bg-soft: #f5f7fa;
  --text: #1d2129;
  --text-soft: #4e5969;
  --border: #e5e6eb;
  --card: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --bg-soft: #161a21;
    --text: #e5e6eb;
    --text-soft: #a9aeb8;
    --border: #2a2f3a;
    --card: #161a21;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

img { max-width: 100%; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* header */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.brand { display: flex; align-items: baseline; gap: 8px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-name { font-weight: 700; font-size: 18px; }
.brand-abbr {
  font-size: 12px;
  color: var(--brand);
  border: 1px solid var(--brand);
  padding: 1px 6px;
  letter-spacing: 1px;
}
.nav { display: flex; gap: 22px; }
.nav a { color: var(--text-soft); font-size: 15px; padding: 4px 0; }
.nav a:hover { color: var(--text); text-decoration: none; }
.nav a.is-active { color: var(--brand); border-bottom: 2px solid var(--brand); }
.nav-admin { color: var(--brand) !important; }

/* main */
.main { padding: 32px 0 56px; min-height: 60vh; }
.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  color: var(--text-soft);
  font-size: 13px;
}
.site-footer p { margin: 4px 0; }
.icp { color: var(--text-soft); }

/* hero */
.hero { padding: 40px 0 8px; }
.hero h1 { font-size: 34px; margin: 0 0 8px; }
.hero-slogan { color: var(--text-soft); font-size: 16px; margin: 0 0 20px; }
.hero-features { display: flex; gap: 8px; flex-wrap: wrap; margin: 16px 0 0; }

.btn {
  display: inline-block;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  padding: 8px 18px;
  font-size: 14px;
  cursor: pointer;
}
.btn:hover { text-decoration: none; border-color: var(--brand); color: var(--brand); }
.btn-primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn-primary:hover { color: #fff; opacity: .9; }

/* section */
.section { margin-top: 40px; }
.section-title, .page-title { font-size: 22px; margin: 0 0 18px; }
.empty { color: var(--text-soft); }
.back { display: inline-block; margin-bottom: 16px; color: var(--text-soft); font-size: 14px; }

/* server cards */
.server-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.server-card {
  display: block;
  border: 1px solid var(--border);
  background: var(--card);
  padding: 18px;
  overflow: hidden;
  color: var(--text);
}
.server-card:hover { text-decoration: none; border-color: var(--brand); }
.server-card h3 { margin: 8px 0 6px; font-size: 17px; }
.badge {
  display: inline-block;
  font-size: 12px;
  color: var(--brand);
  border: 1px solid var(--brand);
  padding: 1px 8px;
}
.tagline { color: var(--text-soft); margin: 0 0 8px; font-size: 14px; }
.meta { color: var(--text-soft); font-size: 13px; margin: 2px 0; }

/* list */
.list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--border); }
.list-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.list-item a { font-size: 16px; }
.date { color: var(--text-soft); font-size: 13px; white-space: nowrap; }
.pin { color: var(--brand); font-size: 12px; margin-right: 6px; border: 1px solid var(--brand); padding: 0 6px; }

/* gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.gallery-item { margin: 0; border: 1px solid var(--border); background: var(--card); }
.gallery-item img { display: block; width: 100%; height: 160px; object-fit: cover; }
.gallery-item .ph {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-soft);
  color: var(--text-soft);
}
.gallery-item figcaption { padding: 10px 12px; font-size: 14px; }
.cap-sub { display: block; color: var(--text-soft); font-size: 12px; margin-top: 2px; }

/* detail */
.detail-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
  margin: 18px 0;
  border: 1px solid var(--border);
  padding: 14px;
}
.meta-grid dt { color: var(--text-soft); font-size: 12px; }
.meta-grid dd { margin: 4px 0 0; font-size: 15px; }
.banner { width: 100%; margin: 16px 0; border: 1px solid var(--border); }
.prose { color: var(--text); white-space: pre-wrap; }
.summary { color: var(--text-soft); margin: 12px 0; }

/* admin */
.admin-wrap { display: grid; grid-template-columns: 200px 1fr; gap: 24px; }
.admin-side { border-right: 1px solid var(--border); padding-right: 16px; }
.admin-side a { display: block; padding: 8px 0; color: var(--text-soft); }
.admin-side a.is-active, .admin-side a:hover { color: var(--brand); text-decoration: none; }
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
.admin-table th { color: var(--text-soft); font-weight: 600; }
.form-grid { display: grid; gap: 14px; max-width: 640px; }
.form-row { display: grid; gap: 6px; }
.form-row label { font-size: 13px; color: var(--text-soft); }
.form-row input, .form-row textarea, .form-row select {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  width: 100%;
}
.form-row textarea { min-height: 120px; resize: vertical; }
.alert { border: 1px solid var(--brand); color: var(--brand); padding: 10px 14px; margin-bottom: 16px; font-size: 14px; }
.muted { color: var(--text-soft); font-size: 13px; }
.center-box { max-width: 360px; margin: 80px auto; }
.center-box h1 { font-size: 22px; }

/* homepage sections */
.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-soft);
  font-size: 14px;
  margin-bottom: 14px;
}
.status-dot { display: inline-block; width: 8px; height: 8px; background: #22c55e; }
.status-dot--sm { width: 6px; height: 6px; }

.chip {
  display: inline-block;
  font-size: 13px;
  color: var(--text-soft);
  border: 1px solid var(--border);
  padding: 2px 10px;
}

.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }

.copy-btn {
  display: inline-block;
  border: 1px solid var(--brand);
  background: transparent;
  color: var(--brand);
  padding: 8px 18px;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
}
.copy-btn:hover { background: var(--brand); color: #fff; }
.copy-btn--sm { padding: 5px 12px; font-size: 13px; }

.server-banner {
  display: block;
  width: calc(100% + 36px);
  height: 150px;
  object-fit: cover;
  margin: -18px -18px 14px;
}
.server-banner.ph {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-soft);
  color: var(--text-soft);
  font-size: 14px;
  margin-bottom: 14px;
}

.section-sub { color: var(--text-soft); font-size: 14px; margin: -8px 0 18px; }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 4px;
}
.step { border: 1px solid var(--border); background: var(--card); padding: 18px; }
.step-num { font-size: 26px; font-weight: 700; color: var(--brand); line-height: 1; margin-bottom: 10px; }
.step h3 { margin: 0 0 6px; font-size: 16px; }
.step p { color: var(--text-soft); font-size: 14px; margin: 6px 0; }
.step-addr { display: flex; align-items: center; gap: 8px; margin: 8px 0 0; }
.step-addr code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 4px 8px;
  font-size: 13px;
  color: var(--text);
}

.more { margin-top: 14px; font-size: 14px; }

/* install wizard */
.install-box { max-width: 560px; margin: 48px auto 0; }
.install-head { margin-bottom: 20px; }
.install-title { font-size: 24px; margin: 14px 0 6px; }
.install-sub { color: var(--text-soft); font-size: 14px; margin: 0 0 12px; }
.install-meta { display: flex; gap: 14px; flex-wrap: wrap; color: var(--text-soft); font-size: 13px; }
.install-warn { color: #e5484d; }
.install-section {
  border: 1px solid var(--border);
  background: var(--card);
  padding: 18px;
  margin-bottom: 16px;
}
.install-section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 600;
}
.install-num { color: var(--brand); font-weight: 700; letter-spacing: 1px; }
.form-cols-2 { display: grid; grid-template-columns: 1fr 120px; gap: 12px; }
.install-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.alert-error { border-color: #e5484d; color: #e5484d; }