/* thinkingmapcamp.com - 主样式 */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:#333;line-height:1.6;background:#fff}
a{color:#1a73e8;text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}

/* 品牌色 */
:root{--primary:#1a73e8;--primary-dark:#1557b0;--accent:#ffb74d;--gray:#f5f7fa;--text:#333;--text-light:#666}

/* 容器 */
.container{max-width:1100px;margin:0 auto;padding:0 20px}

/* 导航 */
nav{background:#fff;border-bottom:1px solid #eee;padding:12px 0;position:sticky;top:0;z-index:100}
nav .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap}
nav .logo{font-size:20px;font-weight:600;color:var(--primary)}
nav .logo span{color:var(--accent)}
nav .nav-links{display:flex;gap:20px}
nav .nav-links a{color:var(--text);font-size:14px;padding:6px 10px;border-radius:6px;transition:.2s}
nav .nav-links a:hover{background:var(--gray);text-decoration:none}

/* Hero区域 */
.hero{background:linear-gradient(135deg,var(--primary) 0%,#0d47a1 100%);color:#fff;padding:80px 0;text-align:center}
.hero h1{font-size:36px;margin-bottom:16px;font-weight:700}
.hero p{font-size:18px;max-width:700px;margin:0 auto 24px;opacity:.9}
.hero .btn{border:2px solid #fff;color:#fff;padding:12px 32px;border-radius:8px;font-size:16px;display:inline-block;transition:.2s}
.hero .btn:hover{background:#fff;color:var(--primary);text-decoration:none}

/* 通用区块 */
.section{padding:60px 0}
.section:nth-child(even){background:var(--gray)}
.section h2{font-size:28px;text-align:center;margin-bottom:40px;color:var(--primary-dark)}

/* 卡片网格 */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.card{background:#fff;border-radius:12px;padding:28px;border:1px solid #eee;transition:.2s}
.card:hover{box-shadow:0 4px 20px rgba(0,0,0,.08)}
.card h3{font-size:18px;margin-bottom:12px;color:var(--primary)}
.card p{font-size:14px;color:var(--text-light);line-height:1.7}

/* 页脚 */
footer{background:#222;color:#aaa;padding:40px 0;text-align:center;font-size:13px}
footer a{color:#aaa}
footer .footer-links{display:flex;justify-content:center;gap:20px;margin-bottom:16px;flex-wrap:wrap}
footer .footer-links a{font-size:13px}

/* 响应式 */
@media(max-width:768px){
  nav .nav-links{display:none;width:100%;margin-top:10px;flex-direction:column;gap:8px}
  .hero h1{font-size:26px}
  .hero p{font-size:16px}
  .section h2{font-size:22px}
  nav .nav-links.show{display:flex}

  /* 移动端汉堡菜单按钮 */
  .menu-btn{display:block;background:none;border:none;font-size:24px;cursor:pointer;color:var(--text);padding:4px 8px}
}

@media(min-width:769px){
  .menu-btn{display:none}
}

/* 页面内容区 */
.page-content{padding:40px 0;min-height:60vh}
.page-content h1{font-size:30px;margin-bottom:20px;color:var(--primary-dark)}
.page-content h2{font-size:22px;margin:28px 0 12px;color:var(--primary)}
.page-content p{margin-bottom:14px;color:var(--text-light)}
.page-content ul{padding-left:20px;margin-bottom:14px}
.page-content ul li{margin-bottom:6px;color:var(--text-light)}

/* 工具箱页面专用 */
.tools-hero{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:60px 0;text-align:center}
.tools-hero h1{font-size:32px;margin-bottom:12px}
.tools-hero p{font-size:16px;opacity:.9;max-width:600px;margin:0 auto}

.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:30px}
.tool-card{background:#fff;border:1px solid #e0e0e0;border-radius:12px;padding:20px;text-align:center;cursor:pointer;transition:.2s}
.tool-card:hover{border-color:var(--primary);box-shadow:0 2px 12px rgba(26,115,232,.15)}
.tool-card .icon{font-size:32px;margin-bottom:8px;display:block}
.tool-card h4{font-size:15px;margin-bottom:4px;color:var(--text)}
.tool-card p{font-size:12px;color:var(--text-light);margin:0}

/* 交互面板 */
.interactive-panel{display:none;margin-top:24px;background:#fff;border:1px solid #e0e0e0;border-radius:12px;padding:20px;min-height:300px}
.interactive-panel.active{display:block}

/* FAQ折叠 */
.faq-item{border:1px solid #eee;border-radius:8px;margin-bottom:10px;overflow:hidden}
.faq-q{padding:14px 18px;cursor:pointer;font-weight:500;font-size:14px;display:flex;justify-content:space-between;align-items:center;background:var(--gray)}
.faq-q::after{content:'+';font-size:18px;color:var(--primary)}
.faq-item.open .faq-q::after{content:'−'}
.faq-a{display:none;padding:14px 18px;font-size:13px;color:var(--text-light);line-height:1.7}
.faq-item.open .faq-a{display:block}

/* 合作案例 */
.case-item{display:flex;gap:24px;align-items:center;margin-bottom:30px;background:#fff;padding:24px;border-radius:12px;border:1px solid #eee}
.case-item .case-text{flex:1}
.case-item .case-text h3{font-size:16px;margin-bottom:8px;color:var(--primary)}
.case-item .case-text p{font-size:13px;color:var(--text-light)}
.case-item .case-img{width:120px;height:120px;background:var(--gray);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--text-light);flex-shrink:0}

@media(max-width:768px){
  .case-item{flex-direction:column;text-align:center}
  .case-item .case-img{margin:0 auto}
}