:root {
  --bg: #fbf8f3;
  --card: #ffffff;
  --ink: #2f2a24;
  --muted: #8a7f6a;
  --line: #ece4d6;
  --brand: #e8743b;
  --brand-d: #c95a25;
  --brand-soft: #fdeee4;
  --shadow: 0 6px 24px rgba(80, 60, 30, 0.08);
  --radius: 16px;
}

* { box-sizing: border-box; }

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

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

.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* 顶部导航 */
.nav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(251, 248, 243, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.logo { font-weight: 800; font-size: 20px; color: var(--brand-d); display: flex; align-items: center; gap: 8px; }
.logo .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--brand); display: inline-block; }
.nav-links { display: flex; gap: 18px; margin-left: auto; }
.nav-links a { color: var(--muted); font-weight: 600; font-size: 15px; padding: 6px 4px; }
.nav-links a:hover, .nav-links a.active { color: var(--brand-d); }
.search-box { display: flex; gap: 8px; }
.search-box input {
  border: 1px solid var(--line); border-radius: 999px; padding: 8px 14px;
  width: 200px; background: #fff; font-size: 14px; outline: none;
}
.search-box input:focus { border-color: var(--brand); }
.search-box button {
  border: none; background: var(--brand); color: #fff; border-radius: 999px;
  padding: 8px 16px; cursor: pointer; font-weight: 600;
}

/* Hero */
.hero { padding: 48px 0 28px; text-align: center; }
.hero h1 { font-size: 40px; margin: 0 0 10px; letter-spacing: -0.5px; }
.hero h1 .hl { color: var(--brand); }
.hero p { color: var(--muted); font-size: 17px; margin: 0 auto; max-width: 560px; }
.hero .cta { margin-top: 20px; display: flex; gap: 12px; justify-content: center; }
.btn {
  display: inline-block; padding: 11px 22px; border-radius: 999px; font-weight: 700; cursor: pointer;
  border: 1px solid var(--brand); transition: .15s;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-d); }
.btn-ghost { background: #fff; color: var(--brand-d); }
.btn-ghost:hover { background: var(--brand-soft); }

/* 区块标题 */
.section-title { font-size: 22px; font-weight: 800; margin: 36px 0 16px; display: flex; align-items: center; gap: 10px; }
.section-title::before { content: ""; width: 5px; height: 22px; background: var(--brand); border-radius: 3px; }

/* 分类网格 */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 16px; }
.cat-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 16px; text-align: center; box-shadow: var(--shadow); transition: .15s;
}
.cat-card:hover { transform: translateY(-4px); border-color: var(--brand); }
.cat-card .emoji { font-size: 34px; }
.cat-card .name { font-weight: 700; margin-top: 8px; }
.cat-card .en { color: var(--muted); font-size: 13px; }

/* 菜谱网格 */
.recipe-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; }
.recipe-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow); transition: .15s; display: flex; flex-direction: column;
}
.recipe-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(80,60,30,.14); }
.recipe-card .cover { width: 100%; aspect-ratio: 4/3; object-fit: cover; background: var(--brand-soft); }
.recipe-card .body { padding: 14px 16px 16px; }
.recipe-card .name { font-weight: 700; font-size: 16px; }
.recipe-card .meta { color: var(--muted); font-size: 13px; margin-top: 6px; display: flex; gap: 12px; flex-wrap: wrap; }

/* 标签/徽标 */
.badge { display: inline-block; background: var(--brand-soft); color: var(--brand-d); border-radius: 999px; padding: 2px 10px; font-size: 12px; font-weight: 600; }

/* 详情页 */
.detail-wrap { display: grid; grid-template-columns: 1fr 360px; gap: 32px; padding: 28px 0 60px; align-items: start; }
.gallery img { width: 100%; border-radius: var(--radius); margin-bottom: 14px; box-shadow: var(--shadow); }
.detail-main h1 { font-size: 30px; margin: 0 0 8px; }
.detail-main .tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); margin-bottom: 20px; }
.panel h3 { margin: 0 0 12px; font-size: 18px; }
.ingredient-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.ingredient-list li { background: var(--bg); border-radius: 10px; padding: 8px 12px; font-size: 14px; }
.step { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px dashed var(--line); }
.step:last-child { border-bottom: none; }
.step .num { flex: 0 0 28px; height: 28px; border-radius: 50%; background: var(--brand); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 14px; }
.step .txt { flex: 1; }
.step .step-imgs { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.step .step-imgs img { width: 120px; border-radius: 10px; object-fit: cover; }
.tips { background: var(--brand-soft); border-radius: 12px; padding: 14px 16px; color: var(--brand-d); }
.tips li { margin: 4px 0; }

/* 知识页 */
.know-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.know-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); transition: .15s; }
.know-card:hover { transform: translateY(-3px); border-color: var(--brand); }
.know-card .kc { color: var(--brand-d); font-weight: 700; font-size: 13px; }
.know-card .kt { font-size: 18px; font-weight: 800; margin: 6px 0; }
.know-card .ks { color: var(--muted); font-size: 14px; }
.markdown-body { font-size: 16px; }
.markdown-body h1, .markdown-body h2, .markdown-body h3 { margin: 24px 0 10px; }
.markdown-body img { max-width: 100%; border-radius: 12px; margin: 12px 0; }
.markdown-body ul, .markdown-body ol { padding-left: 22px; }
.markdown-body code { background: var(--bg); padding: 2px 6px; border-radius: 6px; font-size: 14px; }
.markdown-body pre { background: var(--bg); padding: 14px; border-radius: 10px; overflow: auto; }
.markdown-body a { color: var(--brand-d); text-decoration: underline; }
.markdown-body hr { border: none; border-top: 1px solid var(--line); margin: 20px 0; }

/* 页脚 */
.footer { border-top: 1px solid var(--line); padding: 28px 0; color: var(--muted); text-align: center; font-size: 14px; margin-top: 40px; }

/* 骨架/空态 */
.empty { text-align: center; color: var(--muted); padding: 60px 0; }
.skeleton { background: linear-gradient(90deg,#f0e9dc,#faf6ef,#f0e9dc); background-size: 200% 100%; animation: sk 1.2s infinite; border-radius: 10px; }
@keyframes sk { 0%{background-position:200% 0} 100%{background-position:-200% 0} }

/* 响应式 */
@media (max-width: 860px) {
  .detail-wrap { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .nav-links { display: none; }
  .search-box input { width: 130px; }
  .ingredient-list { grid-template-columns: 1fr; }
}