/* 萌犬训练营官网 —— 主题 Token 沿用 prototype/css/theme.css */
:root {
  --color-primary: #ffb800;
  --color-primary-dark: #e5a600;
  --color-primary-light: #fff3cc;
  --color-buy: #ff6b35;
  --color-bg: #fff9e6;
  --color-surface: rgba(255, 255, 255, 0.85);
  --color-text: #333333;
  --color-text-muted: #888888;
  --color-border: #ffe8a3;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --shadow: 0 4px 16px rgba(255, 184, 0, 0.18);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);
  --font-sans: 'PingFang SC', 'Hiragino Sans GB', system-ui, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: #f5ebe0;
  color: var(--color-text);
  line-height: 1.6;
}
a { color: var(--color-primary-dark); text-decoration: none; }
img, svg { max-width: 100%; vertical-align: middle; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* 页头 */
.site-header { background: var(--color-primary-light); border-bottom: 2px solid var(--color-border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding-top: 12px; padding-bottom: 12px; }
.brand { display: flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 700; color: var(--color-text); }
.brand-icon { width: 28px; height: 28px; fill: var(--color-primary); }
.site-nav { display: flex; flex-wrap: wrap; gap: 4px; }
.site-nav a { padding: 6px 14px; border-radius: var(--radius-pill); color: var(--color-text-muted); }
.site-nav a:hover { background: #fff; color: var(--color-text); }
.site-nav a.active { background: var(--color-primary); color: #fff; font-weight: 600; }

/* 首屏 */
.hero { background: linear-gradient(180deg, var(--color-bg) 0%, #f5ebe0 100%); text-align: center; padding: 56px 0 40px; }
.hero-dog { width: 160px; height: 160px; }
.hero h1 { font-size: 34px; margin: 12px 0 4px; }
.hero .slogan { font-size: 20px; color: var(--color-primary-dark); font-weight: 600; margin: 0 0 8px; }
.hero p { color: var(--color-text-muted); max-width: 560px; margin: 0 auto 24px; }
.btn-primary {
  display: inline-block; background: var(--color-primary); color: #fff;
  padding: 12px 32px; border-radius: var(--radius-pill); font-size: 17px; font-weight: 600;
  box-shadow: var(--shadow);
}
.btn-primary:hover { background: var(--color-primary-dark); }

/* 区块与卡片 */
.section { padding: 40px 0; }
.section-title { text-align: center; font-size: 26px; margin: 0 0 8px; }
.section-sub { text-align: center; color: var(--color-text-muted); margin: 0 0 28px; }
.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card {
  background: var(--color-surface); border-radius: var(--radius-md);
  box-shadow: var(--shadow-card); padding: 24px;
}
.card .icon { width: 44px; height: 44px; fill: var(--color-primary); margin-bottom: 10px; }
.card h3 { margin: 0 0 8px; font-size: 17px; }
.card p { margin: 0; color: var(--color-text-muted); font-size: 14px; }
.card-link { display: inline-block; margin-top: 12px; font-weight: 600; }

/* 价格 */
.price-card { text-align: center; position: relative; }
.price-card h3 { font-size: 18px; }
.price { font-size: 32px; font-weight: 700; color: var(--color-buy); margin: 8px 0 16px; }
.price small { font-size: 14px; color: var(--color-text-muted); font-weight: 400; }
.price-card ul { list-style: none; margin: 0; padding: 0; text-align: left; font-size: 14px; }
.price-card li { padding: 6px 0; border-top: 1px dashed var(--color-border); }
.price-card.featured { border: 2px solid var(--color-primary); }
.price-tag {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--color-buy); color: #fff; font-size: 12px;
  padding: 2px 12px; border-radius: var(--radius-pill); white-space: nowrap;
}
.notice {
  background: var(--color-primary-light); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 14px 20px; text-align: center; margin-bottom: 28px;
}

/* 训练阶段 */
.stage-flow { display: flex; flex-direction: column; gap: 12px; max-width: 640px; margin: 0 auto; }
.stage-item { display: flex; align-items: flex-start; gap: 14px; }
.stage-num {
  flex: 0 0 36px; height: 36px; border-radius: 50%; background: var(--color-primary);
  color: #fff; font-weight: 700; display: flex; align-items: center; justify-content: center;
}
.stage-item h3 { margin: 4px 0 4px; font-size: 16px; }
.stage-item p { margin: 0; color: var(--color-text-muted); font-size: 14px; }
.stage-arrow { text-align: center; fill: var(--color-primary); height: 20px; }

/* FAQ */
details { background: var(--color-surface); border-radius: var(--radius-md); box-shadow: var(--shadow-card); margin-bottom: 12px; }
summary { cursor: pointer; font-weight: 600; padding: 16px 20px; }
details p { margin: 0; padding: 0 20px 16px; color: var(--color-text-muted); font-size: 14px; }

/* 页脚 */
.site-footer { background: #fff; border-top: 1px solid var(--color-border); margin-top: 40px; padding: 28px 0; text-align: center; color: var(--color-text-muted); font-size: 14px; }
.footer-nav { margin-bottom: 8px; }
.footer-nav a { margin: 0 8px; }
.site-footer .icp { display: block; }

/* 移动端 */
@media (max-width: 600px) {
  .hero h1 { font-size: 26px; }
  .header-inner { justify-content: center; }
}