/* ============================================
   BIOCCE 统一设计系统 v2.0 — 最终版
   全站必须严格遵循，禁止随意修改
   ============================================ */

/* 1. 配色 */
:root {
  --primary: #1A3A4A;
  --primary-hover: #2D5A6E;
  --accent: #C9A84C;
  --bg: #FAFAF8;
  --card: #ffffff;
  --text: #1A1A1A;
  --text-secondary: #666666;
  --text-light: #999999;
  --border: #e5e7eb;
  --shadow: 0 4px 20px rgba(0,0,0,0.06);
  /* 字号系统 */
  --fs-sm: 14px;
  --fs-base: 16px;
  --fs-lg: 18px;
  --fs-xl: 22px;
  --fs-2xl: 26px;
  --fs-3xl: 22px;
  --fs-4xl: 26px;
  --fs-5xl: 32px;
}

/* 2. 字体 & 基础 */
*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:Inter,'Noto Sans SC',sans-serif;
  font-size:var(--fs-base);font-weight:400;line-height:1.6;
  color:var(--text);background:var(--bg);
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}

/* 3. 标题 */
h1{font-size:var(--fs-5xl);font-weight:600;line-height:1.2}
h2{font-size:var(--fs-4xl);font-weight:600;line-height:1.2}
h3{font-size:var(--fs-3xl);font-weight:600;line-height:1.2}
h4{font-size:var(--fs-2xl);font-weight:600;line-height:1.2}
p{font-size:var(--fs-base);line-height:1.6;max-width:700px}
small,.small{font-size:var(--fs-sm)}

/* 4. 导航 */
nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:var(--card);border-bottom:1px solid var(--border);
  height:64px;
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  max-width:1200px;margin:0 auto;padding:0 24px;height:64px;
}
.nav-left{display:flex;align-items:center;gap:12px}
.logo-mark{
  width:34px;height:34px;background:var(--primary);border-radius:6px;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:14px;font-weight:700;
}
.logo-text{font-size:16px;font-weight:600;color:var(--text);letter-spacing:.5px}
.nav-right{display:flex;align-items:center;gap:24px;list-style:none}
.nav-right a{
  font-size:14px;font-weight:500;color:var(--text-secondary);padding:4px 0;
  transition:color .2s;
}
.nav-right a:hover,.nav-right a.active{color:var(--primary)}
.nav-cta{
  display:inline-block;padding:8px 20px;
  background:var(--primary);color:#fff!important;
  border-radius:8px;font-size:14px!important;font-weight:600!important;
  transition:background .2s,transform .2s;
}
.nav-cta:hover{background:var(--primary-hover)!important;transform:translateY(-2px)}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:4px;z-index:1001}
.hamburger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:.3s}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* 5. Hero Banner — 全站统一高度 */
.hero{padding-top:64px;background:var(--card)}
.hero-banner{
  background:linear-gradient(135deg,var(--card) 0%,#eef3fc 100%);
  width:100%;
  min-height:360px;
  display:flex;align-items:center;
  padding-top:48px;
}
.hero-inner{
  max-width:1200px;width:100%;margin:0 auto;
  padding:48px 24px;
}
.hero-text{max-width:700px}
.hero-text .tagline{
  display:inline-block;
  background:rgba(26,58,74,0.08);color:#1A3A4A;
  padding:4px 14px;border-radius:20px;
  font-size:14px;font-weight:600;letter-spacing:1px;
  text-transform:uppercase;margin-bottom:12px;
}
.hero-text h1{font-size:var(--fs-5xl);font-weight:600;color:#1A1A1A;margin-bottom:12px}
.hero-text p{font-size:16px;color:#666666;margin-bottom:24px;max-width:700px}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap}
.hero-btns .btn{
  padding:12px 28px;border-radius:8px;font-size:16px;font-weight:500;
  transition:background .2s,transform .2s;display:inline-flex;align-items:center;gap:8px;
}
.hero-btns .btn-primary{background:#1A3A4A;color:#fff}
.hero-btns .btn-primary:hover{background:#2D5A6E;transform:translateY(-2px)}
.hero-btns .btn-outline{
  background:transparent;color:#1A3A4A;
  border:2px solid #1A3A4A;
}
.hero-btns .btn-outline:hover{background:#1A3A4A;color:#fff;transform:translateY(-2px)}

@media(max-width:768px){
  .hero-banner{min-height:280px;padding-top:32px}
  .hero-inner{padding:32px 16px}
}

/* 6. 区块通用 */
section{padding:48px 24px}
.section-inner{max-width:1200px;margin:0 auto}
.section-dark{background:#1a1a2e;color:#fff}
.section-light{background:var(--card)}
.section-gray{background:var(--bg)}
.section-title{font-size:26px;font-weight:600;color:var(--primary);margin-bottom:8px}
.section-subtitle{font-size:16px;color:var(--text-secondary);margin-bottom:32px;max-width:700px}

/* 7. Grid布局（全站统一） */
.grid-4{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}

/* 8. 卡片 */
.card{
  background:var(--card);border-radius:12px;overflow:hidden;
  border:1px solid var(--border);
  transition:transform .3s,box-shadow .3s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}

/* 9. 按钮 */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 24px;border-radius:8px;
  font-size:16px;font-weight:500;
  border:none;cursor:pointer;
  transition:background .2s,transform .2s,box-shadow .2s;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover);box-shadow:0 4px 12px rgba(26,86,219,0.25)}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#0a82c5}

/* 10. Footer */
footer{
  background:#1a1a2e;color:#ccc;padding:48px 24px 0;
  margin-top:48px;
}
.footer-inner{
  max-width:1200px;margin:0 auto;
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;
}
footer h3{font-size:18px;font-weight:600;color:#fff;margin-bottom:16px}
footer h4{font-size:14px;font-weight:600;color:#999;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:16px}
footer p{font-size:14px;line-height:1.7;color:#999}
footer ul{list-style:none}
footer li{margin-bottom:8px}
footer li a{font-size:14px;color:#999;transition:color .2s}
footer li a:hover{color:#fff}
footer .contact li{font-size:14px;color:#999}
footer .contact li a{color:var(--accent)}
footer .contact li a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid #333;
  margin-top:32px;padding:16px 0;
  display:flex;justify-content:space-between;
  font-size:14px;color:#666
}

/* 11. WhatsApp Float */
.float-wa{
  position:fixed;bottom:24px;right:24px;
  width:48px;height:48px;
  background:#25D366;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 16px rgba(37,211,102,0.3);
  z-index:999;transition:transform .2s;
}
.float-wa:hover{transform:scale(1.1)}
.float-wa svg{width:24px;height:24px;fill:#fff}

/* 12. 文本辅助 */
.text-center{text-align:center}
.text-primary{color:var(--primary)}
.text-secondary{color:var(--text-secondary)}
.text-light{color:var(--text-light)}
.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}.mt-48{margin-top:48px}
.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}.mb-32{margin-bottom:32px}.mb-48{margin-bottom:48px}

/* 13. 响应式 */
@media(max-width:1024px){
  .footer-inner{grid-template-columns:1fr 1fr}
  .hero-bg{padding:48px 16px}
  section{padding:32px 16px}
}
@media(max-width:768px){
  .nav-right{
    position:fixed;top:0;right:-100%;width:280px;height:100vh;
    background:var(--card);flex-direction:column;justify-content:center;
    gap:20px;padding:40px;
    box-shadow:-4px 0 20px rgba(0,0,0,.08);
    transition:right .3s;z-index:999;
  }
  .nav-right.open{right:0}
  .hamburger{display:flex}
  .footer-inner{grid-template-columns:1fr}
  .hero-text h1{font-size:26px}
  h1{font-size:26px}h2{font-size:22px}h3{font-size:18px}
  /* Mobile table scroll */
  .article-body table,.prod-gallery table,.specs-table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;white-space:nowrap}
  .article-body table td,.article-body table th{padding:8px 10px;font-size:13px}
  /* Touch targets */
  .btn,.share-btn,.nav-cta{padding-top:12px;padding-bottom:12px;min-height:44px}
  /* Share bar wrap */
  .article-meta{flex-wrap:wrap;gap:8px}
  /* Product cards */
  .related-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))!important;gap:12px}
}


/* 11. Social & Map Section */
.social-map-section{
  display:flex;flex-wrap:wrap;gap:24px 48px;
  padding:32px 24px;max-width:1200px;margin:0 auto;
  border-top:1px solid #2a2a3a;justify-content:center;
}
.social-links{text-align:center}
.social-links h4,.map-container h4{
  font-size:12px;font-weight:600;color:#666;
  letter-spacing:1.5px;text-transform:uppercase;margin-bottom:12px;
}
.social-icons{display:flex;gap:12px;justify-content:center}
.social-icon{
  display:flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:50%;
  background:#2a2a3a;color:#999;transition:all .2s;
}
.social-icon:hover{color:#fff;background:var(--accent);transform:translateY(-2px)}
.map-container{text-align:center}
.map-link{
  display:inline-flex;align-items:center;
  padding:10px 20px;border-radius:8px;
  background:#2a2a3a;color:#999;font-size:13px;
  text-decoration:none;transition:all .2s;
}
.map-link:hover{color:#fff;background:var(--accent)}


/* 12. Related Articles */
.related-articles{
  margin-top:40px;padding-top:32px;
  border-top:1px solid #2a2a3a;
}
.related-articles h3{
  font-size:16px;font-weight:600;color:#fff;
  margin-bottom:16px;
}
.related-item{
  display:block;padding:14px 18px;
  background:#1e1e28;border-radius:8px;
  text-decoration:none;transition:all .2s;
  border:1px solid #2a2a3a;
}
.related-item span{
  font-size:13px;color:#c0c0c0;line-height:1.4;
  display:block;
}
.related-item:hover{
  background:#2a2a3a;border-color:var(--accent);
  transform:translateY(-1px);
}
.related-item:hover span{color:#fff}
/* 兼容旧版related-articles样式 */

/* 2026-06-20 15:35:35 */

/* Quick Answer box (article summary) */
.quick-answer {
    background: #E8F4F8;
    border-left: 4px solid #1A3A4A;
    border-radius: 8px;
    padding: 20px 24px;
    margin-bottom: 24px;
    font-size: 16px;
    line-height: 1.7;
    color: #1A3A4A;
}
.quick-answer p {
    margin: 0;
    color: #1A3A4A;
}