/* =========================================================
   拾光集 · 公开站样式
   ========================================================= */
:root {
  --bg: #faf7f1;
  --surface: #ffffff;
  --ink: #292420;
  --ink-soft: #6b6257;
  --muted: #9a9185;
  --line: #ece5d8;
  --accent: #d97706;
  --accent-deep: #b45309;
  --radius: 18px;
  --shadow-sm: 0 1px 2px rgba(41, 36, 32, .05), 0 4px 16px rgba(41, 36, 32, .05);
  --shadow-md: 0 2px 6px rgba(41, 36, 32, .06), 0 14px 34px rgba(41, 36, 32, .10);
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 247, 241, .82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 28px; height: 62px; }
.logo {
  font-family: var(--serif);
  font-size: 1.35rem; font-weight: 700; letter-spacing: .06em;
  color: var(--ink);
}
.logo span {
  display: inline-block; color: var(--accent);
  transform: rotate(0deg); transition: transform .5s ease;
}
.logo:hover span { transform: rotate(90deg); }
.nav { display: flex; gap: 4px; margin-left: 8px; flex: 1; }
.nav a {
  padding: 6px 14px; border-radius: 999px; font-size: .95rem;
  color: var(--ink-soft); transition: all .2s ease;
}
.nav a:hover { color: var(--ink); background: rgba(41, 36, 32, .05); }
.nav a.active { color: #fff; background: var(--ink); }
.admin-link {
  font-size: .85rem; color: var(--muted);
  padding: 6px 14px; border: 1px solid var(--line); border-radius: 999px;
  transition: all .2s ease;
}
.admin-link:hover { color: var(--accent-deep); border-color: var(--accent); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 76px 0 44px; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(620px 320px at 12% 8%, rgba(217, 119, 6, .11), transparent 62%),
    radial-gradient(520px 300px at 88% 16%, rgba(79, 70, 229, .09), transparent 62%),
    radial-gradient(420px 280px at 50% 100%, rgba(13, 148, 136, .08), transparent 62%);
}
.hero .container { position: relative; text-align: center; }
.hero-kicker {
  font-size: .78rem; letter-spacing: .34em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 14px;
}
.hero-title {
  font-family: var(--serif);
  font-size: clamp(2.6rem, 6vw, 4rem);
  font-weight: 700; letter-spacing: .08em;
  background: linear-gradient(120deg, var(--ink) 30%, var(--accent-deep) 70%, var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { margin-top: 10px; color: var(--ink-soft); font-size: 1.08rem; }

.search-box {
  max-width: 460px; margin: 30px auto 0;
  display: flex; align-items: center; gap: 10px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 999px; padding: 12px 20px;
  box-shadow: var(--shadow-sm); color: var(--muted);
  transition: box-shadow .25s ease, border-color .25s ease;
}
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(217, 119, 6, .12), var(--shadow-sm); }
.search-box input {
  flex: 1; border: none; outline: none; background: transparent;
  font-size: .98rem; color: var(--ink); font-family: var(--sans);
}
.search-box input::placeholder { color: var(--muted); }

.chips { display: flex; justify-content: center; gap: 10px; margin-top: 22px; flex-wrap: wrap; }
.chip {
  border: 1px solid var(--line); background: var(--surface);
  color: var(--ink-soft); font-size: .9rem; font-family: var(--sans);
  padding: 7px 20px; border-radius: 999px; cursor: pointer;
  transition: all .2s ease;
}
.chip:hover { border-color: var(--accent); color: var(--accent-deep); transform: translateY(-1px); }
.chip.active { background: var(--ink); border-color: var(--ink); color: #fff; }

/* ---------- 列表 ---------- */
.section-head {
  display: flex; align-items: baseline; gap: 12px;
  margin: 34px 0 20px; padding-bottom: 12px; border-bottom: 1px solid var(--line);
}
.section-head h2 { font-family: var(--serif); font-size: 1.3rem; letter-spacing: .04em; }
.section-count { color: var(--muted); font-size: .88rem; }

.grid {
  display: grid; gap: 24px;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: transform .28s ease, box-shadow .28s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.card-cover { aspect-ratio: 16 / 9; overflow: hidden; background: #f1ece2; position: relative; }
.card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; display: block; }
.card:hover .card-cover img { transform: scale(1.05); }
.card-cover .ph {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: 3rem;
}
.card-body { padding: 18px 20px 16px; }
.badge {
  display: inline-block; font-size: .76rem; padding: 3px 12px; border-radius: 999px;
  background: color-mix(in srgb, var(--c, #d97706) 13%, #fff);
  color: var(--c, #b45309); margin-bottom: 10px; letter-spacing: .04em;
}
.card-body h3 {
  font-family: var(--serif); font-size: 1.12rem; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  margin-bottom: 8px;
}
.card-excerpt {
  font-size: .9rem; color: var(--ink-soft);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  min-height: 2.9em;
}
.card-meta {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--line);
  color: var(--muted); font-size: .82rem;
}
.card-meta .arrow { color: var(--accent); font-size: 1.05rem; transition: transform .25s ease; }
.card:hover .card-meta .arrow { transform: translateX(4px); }

.empty { text-align: center; padding: 70px 0; color: var(--muted); }
.empty-emoji { font-size: 3rem; margin-bottom: 12px; }

.load-wrap { text-align: center; padding: 34px 0 10px; }
.btn-load {
  font-family: var(--sans); font-size: .95rem; color: var(--ink-soft);
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px;
  padding: 10px 34px; cursor: pointer; transition: all .2s ease;
}
.btn-load:hover { border-color: var(--accent); color: var(--accent-deep); }

/* ---------- 文章页 ---------- */
.post-wrap { padding-top: 40px; padding-bottom: 60px; }
.post-loading { text-align: center; color: var(--muted); padding: 80px 0; }

.post-head { max-width: 760px; margin: 0 auto; text-align: center; }
.post-head .badge { margin-bottom: 16px; }
.post-head h1 {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  line-height: 1.45; letter-spacing: .02em;
}
.post-meta {
  margin-top: 16px; color: var(--muted); font-size: .88rem;
  display: flex; justify-content: center; gap: 18px; flex-wrap: wrap;
}
.post-meta span { display: inline-flex; align-items: center; gap: 6px; }
.post-cover {
  margin: 30px auto 0; max-width: 860px;
  border-radius: 20px; overflow: hidden; box-shadow: var(--shadow-md);
}
.post-cover img { width: 100%; display: block; }
.post-cover .ph {
  aspect-ratio: 21 / 9; display: flex; align-items: center; justify-content: center;
  font-size: 4rem; background: linear-gradient(120deg, #f6f1e7, #efe7d8);
}

.post-body {
  max-width: 760px; margin: 40px auto 0;
  font-size: 1.04rem; line-height: 1.95; color: #3d372f;
}
.post-body h2 {
  font-family: var(--serif); font-size: 1.45rem;
  margin: 2.1em 0 .8em; padding-left: .7em;
  border-left: 4px solid var(--accent); line-height: 1.4;
}
.post-body h3 {
  font-family: var(--serif); font-size: 1.2rem; margin: 1.8em 0 .7em; color: var(--ink);
}
.post-body p { margin: 1.1em 0; }
.post-body img {
  max-width: 100%; display: block; margin: 1.6em auto; border-radius: 14px;
  box-shadow: var(--shadow-sm);
}
.post-body blockquote {
  border-left: 3px solid #d8cdb8; color: var(--ink-soft);
  padding: .25em 0 .25em 1.2em; margin: 1.6em 0;
  background: rgba(41, 36, 32, .02); border-radius: 0 10px 10px 0;
}
.post-body code {
  background: #f1ece2; color: #8a4b0f;
  padding: .14em .42em; border-radius: 6px;
  font-family: var(--mono); font-size: .88em;
}
.post-body pre {
  background: #26221c; color: #f3ecdd;
  padding: 1.1em 1.3em; border-radius: 14px;
  overflow-x: auto; margin: 1.5em 0;
}
.post-body pre code { background: none; color: inherit; padding: 0; font-size: .9em; }
.post-body a { color: var(--accent-deep); text-decoration: underline; text-underline-offset: 3px; }
.post-body ul, .post-body ol { padding-left: 1.5em; margin: 1.1em 0; }
.post-body li { margin: .45em 0; }
.post-body hr { border: none; border-top: 1px solid var(--line); margin: 2.6em 0; }
.post-body table { border-collapse: collapse; width: 100%; margin: 1.5em 0; font-size: .94em; }
.post-body th, .post-body td { border: 1px solid var(--line); padding: .5em .85em; text-align: left; }
.post-body th { background: #f6f1e7; font-weight: 600; }

.post-nav {
  max-width: 760px; margin: 56px auto 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.post-nav a {
  background: var(--surface); border: 1px solid var(--line); border-radius: 14px;
  padding: 14px 18px; font-size: .9rem; color: var(--ink-soft);
  transition: all .2s ease; display: block;
}
.post-nav a b { display: block; color: var(--muted); font-weight: 500; font-size: .78rem; margin-bottom: 4px; }
.post-nav a:hover { border-color: var(--accent); color: var(--accent-deep); transform: translateY(-2px); }
.post-nav .next { text-align: right; }
.post-404 { text-align: center; padding: 90px 0; color: var(--muted); }
.post-404 a { color: var(--accent-deep); }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--line); margin-top: 50px; }
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 26px 24px; color: var(--muted); font-size: .85rem;
}
.footer-inner a:hover { color: var(--accent-deep); }

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .nav { gap: 0; }
  .nav a { padding: 6px 10px; font-size: .88rem; }
  .admin-link { display: none; }
  .grid { grid-template-columns: 1fr; }
  .post-nav { grid-template-columns: 1fr; }
  .post-nav .next { text-align: left; }
}