:root {
  --bg: #f1e8d8;
  --panel: #fbf5ea;
  --panel2: #f5edde;
  --raise: #fffdf8;
  --border: #e2d6c0;
  --border2: #d4c5aa;
  --fg: #2c2620;
  --fg-dim: #6d6155;
  --muted: #9a8d7c;
  --accent: #c26a3c;
  --accent2: #a9542c;
  --accent-ink: #fffaf3;
  --accent-soft: rgba(194, 106, 60, 0.12);
  --good: #6f8a45;
  --beta: #b07a1f;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Hoefler Text", Georgia, "Songti SC", STSong, "Noto Serif SC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "SF Mono", ui-monospace, Menlo, "DejaVu Sans Mono", monospace;
  --shadow-card: 0 1px 0 rgba(255, 253, 248, 0.6) inset, 0 18px 36px -22px rgba(70, 48, 24, 0.34);
  --shadow-lift: 0 1px 0 rgba(255, 253, 248, 0.7) inset, 0 28px 52px -22px rgba(70, 48, 24, 0.42);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100%;
  font: 16px/1.65 var(--sans);
  color: var(--fg);
  background:
    radial-gradient(1100px 720px at 88% -8%, rgba(194, 106, 60, 0.10), transparent 60%),
    radial-gradient(900px 600px at -8% 6%, rgba(124, 122, 74, 0.08), transparent 55%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* 纸张纹理：极淡噪点，叠出手作纸感 */
.paper {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
}

main, .topbar, .footer { position: relative; z-index: 1; }

a { color: var(--accent); text-decoration: none; text-underline-offset: 2px; }
::selection { background: var(--accent); color: var(--accent-ink); }
[hidden] { display: none !important; }

/* ---------- Topbar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px clamp(20px, 5vw, 56px);
  max-width: 1180px;
  margin: 0 auto;
}
.brand { display: inline-flex; align-items: baseline; color: var(--fg); }
.brand-mark {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 24px;
  letter-spacing: 0.01em;
}
.brand-tld { font-family: var(--serif); font-size: 17px; color: var(--accent); font-style: italic; }
.topbar-meta { display: inline-flex; align-items: center; gap: 12px; }
.topbar-note { font-size: 13px; color: var(--muted); }
/* 印章：朱红描边圆章，工坊气质 */
.seal {
  font-family: var(--serif);
  font-size: 12px;
  color: var(--accent2);
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  line-height: 1;
  transform: rotate(-7deg);
  box-shadow: 0 0 0 2px var(--bg), 0 0 0 3px var(--accent-soft);
  letter-spacing: -0.05em;
  flex-shrink: 0;
}

/* ---------- Hero ---------- */
.hero {
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(28px, 6vh, 72px) clamp(20px, 5vw, 56px) clamp(40px, 6vh, 80px);
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}
.kicker {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(16px, 2vw, 19px);
  color: var(--accent);
  margin: 0 0 18px;
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(38px, 5.6vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.012em;
  margin: 0 0 22px;
}
.hero h1 .ink {
  color: var(--accent);
  position: relative;
  white-space: nowrap;
}
.hero h1 .ink::after {
  content: "";
  position: absolute;
  left: -2%;
  right: -2%;
  bottom: 0.08em;
  height: 0.34em;
  background: var(--accent-soft);
  border-radius: 2px;
  z-index: -1;
}
.lead { margin: 0 0 28px; color: var(--fg-dim); font-size: clamp(15px, 1.6vw, 17px); max-width: 30em; }
.lead strong { color: var(--fg); font-weight: 600; }

.search-wrap { position: relative; max-width: 440px; }
.search {
  width: 100%;
  padding: 14px 44px 14px 18px;
  font: 16px var(--sans);
  color: var(--fg);
  background: var(--raise);
  border: 1px solid var(--border2);
  border-radius: 12px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.search::placeholder { color: var(--muted); }
.search:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.search-kbd {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  font: 12px/1 var(--mono);
  color: var(--muted);
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 7px;
  pointer-events: none;
}

/* Hero 右侧：倾斜叠放的「样品卡」，与目录卡片呼应 */
.hero-shelf {
  position: relative;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.spec {
  position: absolute;
  width: 200px;
  background: var(--raise);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 18px 16px;
  box-shadow: var(--shadow-card);
}
.spec .spec-ico { font-size: 30px; line-height: 1; }
.spec .spec-name { font-family: var(--serif); font-size: 19px; margin-top: 12px; font-weight: 600; }
.spec .spec-tag { font-size: 12.5px; color: var(--muted); margin-top: 4px; }
.spec .spec-no { font: 11px var(--mono); color: var(--accent); letter-spacing: 0.06em; }
.spec:nth-child(1) { transform: rotate(-6deg) translate(-46px, 18px); z-index: 1; }
.spec:nth-child(2) { transform: rotate(3deg) translate(40px, -22px); z-index: 3; }
.spec:nth-child(3) { transform: rotate(-1.5deg) translate(-4px, 64px); z-index: 2; }

/* ---------- Catalog ---------- */
.catalog { max-width: 1180px; margin: 0 auto; padding: 0 clamp(20px, 5vw, 56px) clamp(48px, 8vh, 96px); }
.catalog-head {
  display: flex;
  align-items: baseline;
  gap: 20px;
  flex-wrap: wrap;
  padding-bottom: 18px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--border);
}
.catalog-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 22px;
  margin: 0;
}
.catalog-title::before {
  content: "—— ";
  color: var(--accent);
}

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-left: auto; }
.chip {
  font: 13px var(--sans);
  padding: 6px 14px;
  border: 1px solid var(--border2);
  border-radius: 999px;
  background: var(--panel);
  color: var(--fg-dim);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.chip:hover { color: var(--accent2); border-color: var(--accent); }
.chip.active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

/* ---------- Grid / Cards ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}
.card {
  display: flex;
  flex-direction: column;
  padding: 22px 22px 18px;
  background: var(--raise);
  border: 1px solid var(--border);
  border-radius: 14px;
  color: inherit;
  box-shadow: var(--shadow-card);
  transition: transform 0.18s cubic-bezier(0.2, 0.7, 0.2, 1), box-shadow 0.18s, border-color 0.18s;
}
.card:hover {
  transform: translateY(-4px) rotate(-0.4deg);
  box-shadow: var(--shadow-lift);
  border-color: var(--border2);
}
.card.hidden { display: none; }

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.card-no { font: 12px var(--mono); color: var(--accent); letter-spacing: 0.08em; }
.card-cat {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--fg-dim);
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 10px;
}
.card-icon { font-size: 34px; line-height: 1; }
.card-name {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 21px;
  margin: 14px 0 6px;
}
.card-tagline {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--fg-dim);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-foot {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed var(--border2);
}
.card-open { font-size: 13px; color: var(--accent2); font-weight: 600; transition: transform 0.15s; }
.card:hover .card-open { transform: translateX(3px); }
.card-foot .spacer { flex: 1; }

.badge {
  font-size: 11px;
  letter-spacing: 0.06em;
  border-radius: 6px;
  padding: 3px 8px;
  font-weight: 600;
}
.badge-featured { color: var(--accent2); background: var(--accent-soft); border: 1px solid rgba(194, 106, 60, 0.28); }
.badge-beta { color: var(--beta); background: rgba(176, 122, 31, 0.12); }
.badge-draft { color: var(--muted); background: rgba(120, 110, 95, 0.14); }

/* ---------- Empty ---------- */
.empty { text-align: center; color: var(--muted); padding: 56px 0; font-style: italic; font-family: var(--serif); }

/* ---------- Footer ---------- */
.footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px clamp(20px, 5vw, 56px) 84px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
}
.footer-mark { font-family: var(--serif); font-size: 17px; font-weight: 600; color: var(--fg-dim); }
.footer-line { font-style: italic; }
.footer-copy { margin-left: auto; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 8px; }
  .hero-shelf { display: none; }
}
@media (max-width: 520px) {
  .topbar-note { display: none; }
  .hide-sm { display: none; }
  .grid { grid-template-columns: 1fr; }
  .catalog-head { gap: 12px; }
  .filters { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto; }
  .card { transition: none; }
  .card:hover { transform: none; }
}