/* 金猫日和 · 官网 */
:root {
  --paper: #F5EFE0;
  --paper-deep: #EFE7D6;
  --ink: #3A342C;
  --ink-soft: #8A8070;
  --gold: #C9A24B;
  --gold-deep: #A8842E;
  --accent: #B85C38;
  --border: #D8CBAF;
  --shadow: rgba(58, 52, 44, 0.08);
  --nav-h: 72px;
  --max: 1080px;
  --doc-max: 760px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background-color: var(--paper);
  line-height: 1.7;
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(201, 162, 75, 0.12), transparent 50%),
    linear-gradient(180deg, var(--paper) 0%, #F0E8D4 100%);
}

a { color: var(--gold-deep); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent); }

/* —— 顶栏 —— */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(245, 239, 224, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  height: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(145deg, rgba(201, 162, 75, 0.35), rgba(201, 162, 75, 0.12));
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.brand-text { font-size: 1.05rem; }
.brand-text em { font-style: normal; color: var(--gold); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--ink-soft);
  font-weight: 500;
  position: relative;
}

.nav-links a:hover { color: var(--ink); background: rgba(201, 162, 75, 0.1); }
.nav-links a.active {
  color: var(--ink);
  background: var(--paper-deep);
  border: 1px solid var(--border);
}

.nav-links a.active::after {
  content: "🐾";
  position: absolute;
  bottom: -2px;
  right: 6px;
  font-size: 10px;
  opacity: 0.7;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--paper-deep);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 1px;
  transition: transform 0.25s, opacity 0.25s;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* —— 主内容 —— */
main {
  padding-top: var(--nav-h);
  min-height: calc(100vh - 180px);
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 48px 24px 64px;
}

/* —— 首页 Hero —— */
.hero {
  text-align: center;
  padding: 56px 20px 48px;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(201, 162, 75, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto 24px;
  border-radius: 28px;
  background: linear-gradient(160deg, rgba(201, 162, 75, 0.25), rgba(239, 231, 214, 0.9));
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  box-shadow: 0 16px 48px var(--shadow);
}

.hero h1 {
  font-family: "Songti SC", "Noto Serif SC", "STSong", "SimSun", serif;
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}

.hero h1 .gold { color: var(--gold); }

.hero-tagline {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 480px;
  margin: 0 auto 32px;
  letter-spacing: 0.04em;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
}

.badge {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--ink-soft);
  background: var(--paper-deep);
  border: 1px solid var(--border);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 24px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-deep));
  color: #fff;
  border: none;
  box-shadow: 0 8px 24px rgba(201, 162, 75, 0.35);
}

.btn-primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 12px 32px rgba(201, 162, 75, 0.4); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border);
}

.btn-ghost:hover { background: var(--paper-deep); color: var(--ink); }

/* —— 特性卡片 —— */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 48px;
}

.feature-card {
  background: var(--paper-deep);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px 24px;
  transition: transform 0.25s, box-shadow 0.25s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px var(--shadow);
}

.feature-card .icon { font-size: 28px; margin-bottom: 12px; }

.feature-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  font-weight: 700;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.65;
}

/* —— 文档页 —— */
.doc-header {
  text-align: center;
  padding: 40px 20px 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
}

.doc-header h1 {
  font-family: "Songti SC", "Noto Serif SC", serif;
  font-size: 1.85rem;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.doc-meta {
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.doc-body {
  max-width: var(--doc-max);
  margin: 0 auto;
}

.doc-body h2 {
  font-family: "Songti SC", "Noto Serif SC", serif;
  font-size: 1.2rem;
  margin: 36px 0 14px;
  padding-left: 14px;
  border-left: 3px solid var(--gold);
  color: var(--ink);
}

.doc-body h2:first-of-type { margin-top: 0; }

.doc-body p, .doc-body li {
  font-size: 0.95rem;
  color: var(--ink);
  margin-bottom: 12px;
}

.doc-body ul, .doc-body ol {
  margin: 0 0 16px 1.4em;
}

.doc-body li { margin-bottom: 8px; }

.doc-body strong { color: var(--ink); font-weight: 600; }

/* —— 技术支持 —— */
.support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.support-card {
  background: var(--paper-deep);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 32px 28px;
}

.support-card h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.support-card p {
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin-bottom: 16px;
}

.contact-box {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: rgba(201, 162, 75, 0.12);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 1rem;
  color: var(--ink);
  font-weight: 500;
}

.contact-box a { color: var(--gold-deep); font-weight: 600; }

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}

.faq-item:last-child { border-bottom: none; }

.faq-item h4 {
  font-size: 1rem;
  margin-bottom: 8px;
  color: var(--ink);
}

.faq-item p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin: 0;
}

/* —— 页脚 —— */
.site-footer {
  border-top: 1px solid var(--border);
  background: rgba(239, 231, 214, 0.6);
  padding: 40px 24px;
  margin-top: 64px;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.footer-brand {
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  list-style: none;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.footer-links a:hover { color: var(--gold-deep); }

.footer-copy {
  width: 100%;
  text-align: center;
  font-size: 0.8rem;
  color: var(--ink-soft);
  padding-top: 20px;
  border-top: 1px solid var(--border);
  margin-top: 8px;
}

/* —— 响应式 —— */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(245, 239, 224, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s, opacity 0.3s, visibility 0.3s;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links a {
    width: 100%;
    text-align: center;
    padding: 14px;
  }

  .hero { padding: 40px 16px 32px; }
  .container { padding: 32px 20px 48px; }
}