/* 自然教育 / 户外活动 页共享基础（nature.html + outdoor.html）
   由两页逐字相同的规则抽离（2026-09-05），页面 CSS 仅保留各自差异样式
   （.hero-overlay 底部留白、.wrap/.block-pad 内边距、article.card h3 字号等）。
   加载顺序：common.css → 本文件 → 页面 CSS */
body{font-size:14px;line-height:1.85;color:#2B2B2B;background:#FAF6F0;letter-spacing:.4px}
img{display:block;max-width:100%;height:auto}
a{color:#F08200;text-decoration:none}
a:hover{color:#C46A00}

.hero{height:62vh;min-height:420px;overflow:hidden;background:#000}
.hero img{width:100%;height:100%;object-fit:cover;display:block}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.15) 0%,rgba(0,0,0,.5) 100%);display:flex;flex-direction:column;justify-content:flex-end;align-items:flex-start;color:#fff}
.hero-overlay .inner{max-width:1100px;margin:0 auto;padding:24px;width:100%}
.hero-overlay .kicker{font-size:12px;letter-spacing:6px;color:#F08200;font-weight:600;background:rgba(0,0,0,.4);padding:6px 14px;border-radius:20px;display:inline-block;margin-bottom:18px;backdrop-filter:blur(4px)}
.hero-overlay h1{font-size:38px;font-weight:700;line-height:1.4;margin-bottom:14px;text-shadow:0 2px 12px rgba(0,0,0,.5);max-width:780px;letter-spacing:2px}
.hero-overlay p.lead{font-size:15px;line-height:1.95;color:rgba(255,255,255,.92);text-shadow:0 1px 6px rgba(0,0,0,.4);letter-spacing:.5px}

/* .eyebrow：基础样式统一到 common.css，此处保留两页共有的 pill 壳 */
.eyebrow{display:inline-block;background:#FFF1DC;padding:5px 14px;border-radius:20px}
.title{font-size:24px;font-weight:600;color:#2B2B2B;letter-spacing:2px;margin-bottom:8px;line-height:1.4}
.title-en{font-size:13px;color:#999;letter-spacing:3px;margin-bottom:20px}

/* 活动卡片（article.card） */
.act-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:24px}
article.card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 4px 14px rgba(0,0,0,.06);display:flex;flex-direction:column;transition:all .25s}
article.card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(0,0,0,.1)}
article.card a{display:flex;flex-direction:column;height:100%;text-decoration:none;color:inherit}
article.card .pic{position:relative;aspect-ratio:4/3;overflow:hidden;background:#F4EDE1}
article.card .pic img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}
article.card:hover .pic img{transform:scale(1.05)}
article.card .pic .tag{position:absolute;top:12px;left:12px;background:#F08200;color:#fff;font-size:11px;padding:4px 10px;border-radius:12px;letter-spacing:1px;font-weight:500;z-index:2}
article.card .body{padding:18px 20px 20px;flex:1;display:flex;flex-direction:column}
article.card .meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:10px;font-size:12px;color:#888}
article.card .meta span{display:inline-flex;align-items:center;gap:3px}
article.card .price{color:#F08200;font-weight:600;font-size:18px;margin-top:auto;letter-spacing:.5px}
article.card .price small{font-size:12px;font-weight:400;color:#999;margin-left:4px;letter-spacing:0}
article.card .desc{font-size:13px;color:#5A5A5A;line-height:1.8;margin-bottom:14px;letter-spacing:.4px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* 差异化 / 家长口碑：卡片样式已统一到 common.css（.diff 与 .review 系列），此处仅保留区块底色与网格 */
.diff{background:#FFF8EE}
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:24px}

/* CTA */
.cta-banner h3{font-size:24px;font-weight:700;margin-bottom:8px;letter-spacing:2px}
.cta-banner p{font-size:14px;margin-bottom:20px;opacity:.95;letter-spacing:1px}
.cta-banner .btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.cta-banner .btn{display:inline-block;background:#fff;color:#F08200;padding:11px 28px;border-radius:24px;font-size:13px;font-weight:600;letter-spacing:2px;transition:all .2s}
.cta-banner .btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.15)}
.cta-banner .btn.outline{background:transparent;color:#fff;border:1.5px solid #fff}
.cta-banner .btn.outline:hover{background:rgba(255,255,255,.15)}

/* 页脚 */
.foot{background:#2B2B2B;color:#999;padding:36px 20px 24px;text-align:center;font-size:12px;line-height:2;letter-spacing:1px}
.foot a{color:#ccc;margin:0 8px}
.foot a:hover{color:#F08200}
.foot .meta{margin-top:10px;color:#666}

/* 响应式（两页共有部分） */
@media (max-width:900px){
  .act-grid{grid-template-columns:repeat(2,1fr)}
  .diff-grid{grid-template-columns:1fr;gap:12px}
  .diff-vs{transform:rotate(90deg);padding:6px 0}
  .hero-overlay h1{font-size:26px}
  .hero-overlay p.lead{font-size:13px}
  .title{font-size:20px}
}
@media (max-width:680px){
  .act-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .hero{height:50vh;min-height:360px}
  .hero-overlay h1{font-size:22px}
  .hero-overlay p.lead{font-size:12px}
  .block{padding:32px 16px}
  .title{font-size:18px}
}