/* SEO单页站群 page.css —— 卡片瀑布风 */
:root{
  --primary:#be185d;
  --secondary:#831843;
  --accent:#f59e0b;
  --bg:#f7f8fa;
  --card:#fff;
  --line:#ececef;
  --text:#1f2937;
  --muted:#6b7280;
  --shadow:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow-hover:0 8px 24px rgba(0,0,0,.1);
  --radius:10px;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.6}
a{text-decoration:none;color:inherit}
img{max-width:100%}

.cc-container{max-width:1200px;margin:0 auto;padding:0 20px}

/* 顶部导航 */
.cc-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line)}
.cc-header-inner{display:flex;align-items:center;gap:16px;height:64px}
.cc-brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.cc-brand-name{font-size:16px;font-weight:700;color:var(--text);line-height:1.3}
.cc-brand-sub{font-size:12px;color:var(--muted);line-height:1.3}
.cc-brand>span{display:flex;flex-direction:column;gap:3px}
.cc-nav{display:flex;gap:2px;margin-left:auto}
.cc-nav a{padding:8px 14px;font-size:14px;color:#4b5563;border-radius:6px;transition:color .15s,background .15s}
.cc-nav a:hover{color:var(--primary);background:rgba(0,0,0,.03)}
.cc-cta-phone{display:flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:14px;padding:8px 14px;border-radius:6px;white-space:nowrap}
.cc-cta-phone:hover{background:rgba(0,0,0,.03)}
.cc-nav-toggle{display:none;flex-direction:column;gap:4px;background:none;border:0;cursor:pointer;padding:8px;margin-left:auto}
.cc-nav-toggle span{width:22px;height:2px;background:var(--text);display:block;border-radius:2px}

/* Hero */
.cc-hero{background:#fff;border-bottom:1px solid var(--line);padding:56px 0 48px}
.cc-hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;text-align:center}
.cc-hero h1{font-size:34px;font-weight:800;margin:0 0 16px;color:var(--text);letter-spacing:-.5px}
.cc-hero h1 .mark{color:var(--primary)}
.cc-hero p{font-size:16px;color:var(--muted);max-width:720px;margin:0 auto 28px;line-height:1.7}
.cc-hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.cc-btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;border:0;transition:transform .15s,box-shadow .15s,opacity .15s}
.cc-btn-primary{background:var(--primary);color:#fff}
.cc-btn-primary:hover{opacity:.92;transform:translateY(-1px)}
.cc-btn-ghost{background:#fff;color:var(--text);border:1px solid var(--line)}
.cc-btn-ghost:hover{border-color:var(--primary);color:var(--primary)}

/* 区块 */
.cc-section{padding:56px 0}
.cc-section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cc-section-head{text-align:center;margin-bottom:36px}
.cc-eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--primary);letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px}
.cc-section-head h2{font-size:26px;font-weight:700;margin:0 0 10px;color:var(--text)}
.cc-section-head p{font-size:15px;color:var(--muted);margin:0}

/* 卡片网格 */
.cc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cc-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.cc-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.cc-card h3{font-size:17px;margin:0 0 10px;color:var(--text)}
.cc-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.6}

/* 关于 */
.cc-about{max-width:860px;margin:0 auto;text-align:center}
.cc-about p{font-size:15px;color:#374151;margin:0 0 12px;line-height:1.8;text-align:justify}
.cc-about strong{color:var(--secondary)}

/* 优势 */
.cc-adv-card{text-align:center}
.cc-adv-icon{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:10px;background:rgba(0,0,0,.03);color:var(--primary);margin-bottom:14px}

/* 产品 */
.cc-product-card{padding:0;overflow:hidden;display:flex;flex-direction:column}
.cc-product-media{height:180px;background:#f3f4f6;display:flex;align-items:center;justify-content:center;color:#9ca3af;overflow:hidden;position:relative}
.cc-product-media img{width:100%;height:100%;object-fit:cover}
.cc-product-title{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);margin:0;padding:10px 12px;
  font-size:16px;font-weight:600;color:#fff;line-height:1.4;text-align:center;
  background:rgba(0,0,0,.45);
  background:color-mix(in srgb,var(--primary) 78%,transparent);
  text-shadow:0 1px 2px rgba(0,0,0,.25)}
.cc-product-title span{position:relative;z-index:1}
.cc-product-body{padding:20px;display:flex;flex-direction:column;gap:8px}
.cc-product-desc{display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}
.cc-product-ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;
  font-size:52px;font-weight:800;color:rgba(255,255,255,.92);
  background:linear-gradient(135deg,var(--primary),var(--secondary));}
.cc-product-ph[data-seed="1"]{filter:hue-rotate(40deg)}
.cc-product-ph[data-seed="2"]{filter:hue-rotate(80deg)}
.cc-product-ph[data-seed="3"]{filter:hue-rotate(130deg)}
.cc-product-ph[data-seed="4"]{filter:hue-rotate(200deg)}
.cc-product-ph[data-seed="5"]{filter:hue-rotate(280deg)}

/* 流程 */
.cc-flow-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.cc-flow-card{position:relative}
.cc-flow-no{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;font-size:14px;font-weight:700;margin-bottom:12px}

/* 新闻 */
.cc-news-grid .cc-news-card{display:flex;flex-direction:column;gap:8px;text-decoration:none}
.cc-news-date{align-self:flex-start;display:inline-block;padding:3px 12px;border-radius:99px;background:var(--primary);color:#fff;font-size:12px}
.cc-news-card h3{font-size:15px;margin:0}
.cc-news-card p{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* FAQ */
.cc-faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:10px}
.cc-faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:box-shadow .2s}
.cc-faq-item[open]{box-shadow:var(--shadow)}
.cc-faq-item summary{list-style:none;cursor:pointer;padding:18px 20px;display:flex;align-items:center;gap:12px;font-size:15px;font-weight:600;color:var(--text)}
.cc-faq-item summary::-webkit-details-marker{display:none}
.cc-faq-q{flex:1}
.cc-faq-chevron{color:var(--muted);transition:transform .2s;flex-shrink:0;display:flex}
.cc-faq-item[open] .cc-faq-chevron{transform:rotate(180deg);color:var(--primary)}
.cc-faq-a{padding:0 20px 18px;font-size:14px;color:#4b5563;line-height:1.7}

/* 联系 */
.cc-contact-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;align-items:stretch}
.cc-contact-info{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.cc-contact-info p{font-size:15px;color:#374151;margin:0 0 10px}
.cc-contact-cta{background:var(--primary);color:#fff;border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;justify-content:center}
.cc-contact-cta h3{font-size:20px;margin:0 0 10px}
.cc-contact-cta p{font-size:14px;color:rgba(255,255,255,.9);margin:0 0 18px}
.cc-contact-cta .cc-btn{background:#fff;color:var(--primary);align-self:flex-start}

/* 城市 */
.cc-cities{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.cc-city-chip{display:inline-block;padding:8px 18px;background:var(--card);border:1px solid var(--line);border-radius:99px;font-size:13px;color:#4b5563;transition:color .15s,border-color .15s}
.cc-city-chip:hover{color:var(--primary);border-color:var(--primary)}

/* 广告 */
.cc-ad{max-width:1200px;margin:0 auto;padding:0 20px}
.cc-ad-inner{background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:20px;text-align:center}

/* 文章页 */
.cc-article-page{padding:32px 0 56px}
.cc-article-wrap{display:grid;grid-template-columns:1fr 280px;gap:28px;align-items:start}
.cc-breadcrumb{grid-column:1/-1;font-size:13px;color:var(--muted)}
.cc-breadcrumb a{color:var(--primary)}
.cc-article{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.cc-article h1{font-size:26px;margin:0 0 14px;line-height:1.4}
.cc-article-meta{font-size:13px;color:var(--muted);display:flex;gap:16px;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:20px}
.cc-article-body p{font-size:15px;color:#374151;line-height:1.8;margin:0 0 12px}
.cc-article-cta{margin-top:20px;text-align:center}
.cc-related{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;position:sticky;top:84px}
.cc-related h2{font-size:16px;margin:0 0 12px}
.cc-related ul{margin:0;padding:0;list-style:none}
.cc-related li{padding:9px 0;border-bottom:1px solid var(--line);font-size:13px}
.cc-related li:last-child{border-bottom:0}
.cc-related a{color:#4b5563}
.cc-related a:hover{color:var(--primary)}

/* 页脚 */
.cc-footer{background:#1f2937;color:#d1d5db;padding:48px 0 24px;margin-top:40px}
.cc-footer-inner{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;margin-bottom:32px}
.cc-footer-brand strong{color:#fff;font-size:16px}
.cc-footer-brand p{color:#9ca3af;font-size:13px;max-width:600px;margin:8px 0 0}
.cc-footer-nav{display:flex;gap:18px;flex-wrap:wrap;align-items:center}
.cc-footer-nav a{color:#d1d5db;font-size:14px}
.cc-footer-nav a:hover{color:#fff}
.cc-copyright{border-top:1px solid #374151;padding-top:20px;color:#9ca3af;font-size:12px;text-align:center}
.cc-copyright a{color:#9ca3af}

/* 返回顶部 */
.cc-backtop{position:fixed;right:20px;bottom:24px;width:42px;height:42px;border:none;background:var(--primary);color:#fff;border-radius:50%;cursor:pointer;z-index:99;box-shadow:var(--shadow-hover);display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s}
.cc-backtop.show{opacity:1;visibility:visible}

/* 响应式 */
@media (max-width:1024px){
  .cc-grid{grid-template-columns:repeat(2,1fr)}
  .cc-flow-grid{grid-template-columns:repeat(2,1fr)}
  .cc-contact-grid{grid-template-columns:1fr}
  .cc-article-wrap{grid-template-columns:1fr}
  .cc-related{position:static}
}
@media (max-width:768px){
  .cc-header-inner{height:56px}
  .cc-nav{display:none;position:absolute;top:56px;left:0;right:0;flex-direction:column;background:#fff;border-bottom:1px solid var(--line);padding:8px 16px}
  .cc-nav.open{display:flex}
  .cc-nav a{border-bottom:1px solid var(--line);padding:12px 0}
  .cc-nav a:last-child{border-bottom:0}
  .cc-nav-toggle{display:flex}
  .cc-cta-phone{display:none}
  .cc-hero{padding:40px 0 32px}
  .cc-hero h1{font-size:26px}
  .cc-section{padding:40px 0}
  .cc-section-head h2{font-size:22px}
  .cc-grid,.cc-flow-grid{grid-template-columns:1fr}
  .cc-article{padding:22px}
}