/* ============ 复经斋 · 思源插件工坊 ============ */

:root {
  --paper: #faf7f0;
  --paper-alt: #f3eee2;
  --card: #fffdf8;
  --ink: #26221c;
  --ink-soft: #5c554a;
  --ink-faint: #948b7c;
  --line: #e3dccb;
  --cinnabar: #b3402e;
  --cinnabar-deep: #93321f;
  --gold: #a8823f;
  --serif: "Noto Serif SC", "Songti SC", serif;
  --sans: "Noto Sans SC", "PingFang SC", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

a { color: var(--cinnabar); text-decoration: none; }
a:hover { color: var(--cinnabar-deep); }

/* ---------- 顶栏 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 247, 240, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
}
.brand:hover { color: var(--ink); }

.brand-seal {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  background: var(--cinnabar);
  color: #fff8ef;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 19px;
  border-radius: 6px;
  box-shadow: inset 0 0 0 1.5px rgba(255, 248, 239, 0.35);
}

.brand-text {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.04em;
}
.brand-text em {
  font-style: normal;
  font-weight: 500;
  color: var(--ink-faint);
  font-size: 14px;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 14.5px;
}
.top-nav a { color: var(--ink-soft); }
.top-nav a:hover { color: var(--cinnabar); }

.nav-github {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
}

/* ---------- 卷首 ---------- */
.hero {
  padding: 92px 0 72px;
  text-align: center;
  background:
    radial-gradient(ellipse 60% 45% at 50% 0%, rgba(179, 64, 46, 0.055), transparent 70%);
}

.hero-motto {
  font-family: var(--serif);
  color: var(--gold);
  letter-spacing: 0.42em;
  font-size: 14px;
  margin-bottom: 22px;
}
.hero-motto::before, .hero-motto::after {
  content: "—";
  color: var(--line);
  margin: 0 14px;
  letter-spacing: 0;
}

.hero-title {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(34px, 6vw, 56px);
  line-height: 1.32;
  letter-spacing: 0.02em;
  margin-bottom: 26px;
}

.hero-lead {
  max-width: 620px;
  margin: 0 auto 36px;
  color: var(--ink-soft);
  font-size: 16.5px;
}
.hero-lead strong { color: var(--ink); }

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-bottom: 54px;
}

.btn {
  display: inline-block;
  padding: 11px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  transition: all 0.18s ease;
}
.btn-primary {
  background: var(--cinnabar);
  color: #fff8ef;
  box-shadow: 0 4px 14px rgba(179, 64, 46, 0.28);
}
.btn-primary:hover {
  background: var(--cinnabar-deep);
  color: #fff8ef;
  transform: translateY(-1px);
}
.btn-ghost {
  border: 1px solid var(--line);
  color: var(--ink-soft);
  background: var(--card);
}
.btn-ghost:hover { border-color: var(--cinnabar); color: var(--cinnabar); }

.hero-facts {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 34px;
  list-style: none;
}
.hero-facts li {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.hero-facts strong {
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 700;
  color: var(--cinnabar);
}
.hero-facts span {
  font-size: 13px;
  color: var(--ink-faint);
  letter-spacing: 0.06em;
}
.fact-divider {
  width: 1px;
  height: 34px;
  background: var(--line);
}

/* ---------- 章节 ---------- */
.section { padding: 76px 0; }
.section-alt { background: var(--paper-alt); }

.section-head {
  max-width: 640px;
  margin-bottom: 44px;
}
.section-num {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--cinnabar);
  color: var(--cinnabar);
  font-family: var(--serif);
  font-size: 14px;
  border-radius: 50%;
  margin-bottom: 14px;
}
.section-head h2 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 30px;
  letter-spacing: 0.03em;
  margin-bottom: 12px;
}
.section-head p {
  color: var(--ink-soft);
  font-size: 15px;
}

/* ---------- 插件卡片 ---------- */
.plugin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 18px;
}

.plugin-card {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 24px 24px 20px;
  transition: all 0.2s ease;
}
.plugin-card:hover {
  border-color: #d3c8ad;
  box-shadow: 0 8px 26px rgba(60, 48, 30, 0.09);
  transform: translateY(-2px);
}
.plugin-card.featured {
  border-top: 3px solid var(--cinnabar);
}

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}
.card-head h3 {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
}
.card-head .en {
  display: block;
  font-family: var(--sans);
  font-weight: 400;
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
}

.chip {
  flex-shrink: 0;
  font-size: 11.5px;
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.05em;
}
.chip-bazaar {
  background: rgba(179, 64, 46, 0.09);
  color: var(--cinnabar);
  border: 1px solid rgba(179, 64, 46, 0.25);
}
.chip-github {
  background: rgba(92, 85, 74, 0.08);
  color: var(--ink-soft);
  border: 1px solid var(--line);
}

.plugin-card p {
  flex: 1;
  color: var(--ink-soft);
  font-size: 14px;
  margin-bottom: 18px;
}

.card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px dashed var(--line);
  padding-top: 13px;
}
.card-foot .ver {
  font-size: 12.5px;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}
.card-foot a { font-size: 13.5px; font-weight: 500; }

/* ---------- 上游贡献 ---------- */
.upstream-card {
  display: flex;
  align-items: stretch;
  gap: 30px;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 4px solid var(--gold);
  border-radius: 10px;
  padding: 34px 38px;
}
.upstream-body h3 {
  font-family: var(--serif);
  font-size: 22px;
  margin-bottom: 10px;
}
.upstream-body p {
  color: var(--ink-soft);
  font-size: 15px;
  max-width: 640px;
}
.upstream-mark {
  flex-shrink: 0;
  align-self: center;
  display: grid;
  place-items: center;
  width: 84px;
  height: 84px;
  border: 2px solid rgba(168, 130, 63, 0.4);
  border-radius: 50%;
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 700;
  color: var(--gold);
  opacity: 0.85;
}

/* ---------- 赞助 ---------- */
.qr-panel {
  max-width: 420px;
  margin: 0 auto 60px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 26px 26px 30px;
  text-align: center;
  box-shadow: 0 10px 34px rgba(60, 48, 30, 0.07);
}

.qr-tabs {
  display: inline-flex;
  background: var(--paper-alt);
  border-radius: 999px;
  padding: 4px;
  margin-bottom: 22px;
}
.qr-tab {
  border: none;
  background: transparent;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink-soft);
  padding: 7px 26px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.qr-tab.active {
  background: var(--cinnabar);
  color: #fff8ef;
}

.qr-box { display: none; }
.qr-box.active { display: block; }
.qr-box img {
  width: 240px;
  max-width: 100%;
  border-radius: 8px;
  border: 1px solid var(--line);
}
.qr-box figcaption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--ink-faint);
}

/* ---------- 谢辞 ---------- */
.sponsor-wall { text-align: center; }
.wall-title {
  font-family: var(--serif);
  font-size: 21px;
  margin-bottom: 6px;
}
.wall-desc {
  color: var(--ink-faint);
  font-size: 13.5px;
  margin-bottom: 22px;
}
.wall-list {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  list-style: none;
}
.wall-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 20px 8px 9px;
}
.wall-avatar {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--cinnabar);
  color: #fff8ef;
  font-weight: 700;
  font-size: 15px;
}
.wall-join .wall-avatar {
  background: var(--paper-alt);
  color: var(--ink-faint);
  border: 1px dashed var(--ink-faint);
}
.wall-name { font-weight: 600; font-size: 14.5px; }
.wall-note { font-size: 12.5px; color: var(--ink-faint); }

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 30px 0;
  background: var(--paper-alt);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13.5px;
  color: var(--ink-faint);
}
.footer-links { display: flex; gap: 22px; }
.footer-links a { color: var(--ink-soft); }
.footer-links a:hover { color: var(--cinnabar); }

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
  .top-nav a:not(.nav-github) { display: none; }
  .hero { padding: 64px 0 52px; }
  .hero-facts { gap: 22px; }
  .section { padding: 56px 0; }
  .upstream-card { flex-direction: column; padding: 28px 24px; }
  .upstream-mark { display: none; }
  .footer-inner { justify-content: center; text-align: center; }
}