/* 长岁树玄学工具站 — Ink & Jade 主题 */
:root {
  --ink: #1c1a17;
  --ink-soft: #4a4640;
  --paper: #faf8f2;
  --paper-deep: #f3efe6;
  --jade: #1f5c4d;
  --jade-light: #e8f0ec;
  --gold: #b98a2f;
  --gold-light: #f7f0dd;
  --line: #e5ddcd;
  --radius: 14px;
  --font-serif: "Noto Serif SC", "Songti SC", serif;
  --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--jade); text-decoration: none; }
a:hover { text-decoration: underline; }

/* 顶栏 */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250,248,242,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: 1120px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand { font-family: var(--font-serif); font-size: 22px; font-weight: 700; color: var(--ink); }
.brand span { color: var(--gold); }
.nav { display: flex; gap: 28px; }
.nav a { color: var(--ink-soft); font-size: 15px; }
.nav a:hover, .nav a.active { color: var(--jade); }

/* 主体 */
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.hero {
  text-align: center; padding: 90px 24px 70px;
  background: radial-gradient(ellipse at 50% 0%, var(--gold-light) 0%, var(--paper) 65%);
}
.hero h1 {
  font-family: var(--font-serif); font-size: clamp(34px, 6vw, 58px);
  font-weight: 700; letter-spacing: .06em; margin-bottom: 18px;
}
.hero p { font-size: 18px; color: var(--ink-soft); max-width: 640px; margin: 0 auto 34px; }
.btn {
  display: inline-block; padding: 14px 38px; border-radius: 999px;
  background: var(--jade); color: #fff; font-size: 16px; border: none; cursor: pointer;
  transition: transform .15s, box-shadow .15s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(31,92,77,.25); text-decoration: none; color: #fff; }
.btn-ghost { background: transparent; color: var(--jade); border: 1.5px solid var(--jade); }

/* 工具卡片 */
.tools { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; padding: 20px 0 70px; }
.tool-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 36px 30px; transition: transform .2s, box-shadow .2s;
}
.tool-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(28,26,23,.08); }
.tool-card .icon { font-size: 40px; margin-bottom: 16px; }
.tool-card h2 { font-family: var(--font-serif); font-size: 24px; margin-bottom: 10px; }
.tool-card p { color: var(--ink-soft); font-size: 15px; margin-bottom: 20px; }

/* 内容区 */
.section { padding: 60px 0; }
.section h2 { font-family: var(--font-serif); font-size: 32px; text-align: center; margin-bottom: 16px; }
.section .lede { text-align: center; color: var(--ink-soft); max-width: 680px; margin: 0 auto 40px; }

/* FAQ (GEO) */
.faq { max-width: 760px; margin: 0 auto; }
.faq details {
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  margin-bottom: 12px; padding: 18px 22px;
}
.faq summary { font-weight: 600; cursor: pointer; font-size: 17px; }
.faq summary::marker { color: var(--gold); }
.faq p { margin-top: 10px; color: var(--ink-soft); font-size: 15px; }

/* 表单 */
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 40px; max-width: 720px; margin: 0 auto; }
.form-row { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.form-group { flex: 1; min-width: 200px; }
.form-group label { display: block; font-size: 14px; color: var(--ink-soft); margin-bottom: 6px; }
.form-group input, .form-group select {
  width: 100%; padding: 12px 16px; border: 1.5px solid var(--line); border-radius: 8px;
  font-size: 16px; font-family: inherit; background: var(--paper);
}
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--jade); }

/* 结果 */
.result { margin-top: 30px; }
.result-table { width: 100%; border-collapse: collapse; margin: 18px 0; background: #fff; border-radius: 10px; overflow: hidden; }
.result-table th, .result-table td { padding: 12px 16px; border-bottom: 1px solid var(--line); text-align: center; }
.result-table th { background: var(--jade-light); font-weight: 600; }
.ji { color: #1a7a3c; font-weight: 700; }
.banji { color: #c77b1a; font-weight: 700; }
.xiong { color: #c0392b; font-weight: 700; }
.notice {
  background: var(--gold-light); border-left: 4px solid var(--gold);
  padding: 16px 20px; border-radius: 0 10px 10px 0; margin: 20px 0; font-size: 14px;
}
.disclaimer {
  background: #f5f3ee; border: 1px solid var(--line); border-radius: 10px;
  padding: 20px 24px; margin: 40px auto; max-width: 760px; font-size: 13px; color: var(--ink-soft);
}

/* 九宫格 */
.jiugong { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; max-width: 420px; margin: 24px auto; }
.gong {
  aspect-ratio: 1; background: #fff; border: 1.5px solid var(--line); border-radius: 10px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-size: 14px;
}
.gong .fangwei { font-size: 12px; color: var(--ink-soft); }
.gong .stars { font-family: var(--font-serif); font-size: 20px; font-weight: 700; }
.gong .stars .shan { color: var(--jade); }
.gong .stars .xiang { color: var(--gold); }

/* 页脚 */
.site-footer { border-top: 1px solid var(--line); padding: 50px 24px 30px; text-align: center; color: var(--ink-soft); font-size: 14px; }
.site-footer nav { margin-bottom: 16px; }
.site-footer nav a { margin: 0 12px; }

@media (max-width: 640px) {
  .nav { display: none; }
  .hero { padding: 60px 20px 50px; }
  .form-card { padding: 24px 18px; }
}