:root{
  --brand:#0a43ff;
  --bg:#eaf2ff;
  --ink:#10213a;
  --muted:#5b6b84;
  --card:#ffffffee;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font:16px/1.7 system-ui,-apple-system,Segoe UI,Roboto,"Noto Sans",Arial}
.container{width:min(1100px,92vw);margin:0 auto}
header.nav{position:sticky;top:0;background:rgba(234,242,255,.85);backdrop-filter:blur(8px);border-bottom:1px solid #cfe0ff;z-index:10}
.nav-inner{display:flex;gap:16px;align-items:center;padding:12px 0}
.brand{font-weight:800;color:#0a43ff}
.navlinks{display:flex;gap:12px;margin-left:auto}
.navlinks a{padding:6px 10px;border-radius:10px}
.navlinks a:hover{background:#dfeaff}
.lang button{border:1px solid #cfe0ff;background:#f6faff;border-radius:10px;padding:6px 10px;margin-left:4px;cursor:pointer}
.lang button:hover{background:#e9f1ff}

/* 完全重写Banner样式 - 全宽度显示 */
.banner {
    background: none;
    padding: 15px 0;
    margin-bottom: 6px;
    display: flex;
    justify-content: center;
    width: 100%;
}

.banner-box {
    width: 100%; /* 使用100%宽度，不受.container限制 */
    height: clamp(80px, 10.664vw, 133.33px);
    background: url('banner.png') center/cover no-repeat;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(10,67,255,.06);
}

/* 桌面端样式 - 增加内边距让banner看起来更宽 */
@media (min-width: 769px) {
    .banner {
        padding: 15px 5%; /* 增加左右内边距，使banner看起来更宽 */
    }
    
    .banner-box {
        height: clamp(100px, 12vw, 160px); /* 稍微增加高度 */
        background-size: cover; /* 使用cover确保图片填满整个区域 */
    }
}

/* Sections */
.block{padding:26px 0;border-top:1px solid #d6e5ff}
.card{background:var(--card);border:1px solid #dfeaff;border-radius:14px;padding:16px;margin:10px 0;box-shadow:0 4px 18px rgba(12,40,120,.06)}
.grid{display:grid;gap:16px}

/* Media grid: 12-column system */
.media-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:12px;
  align-items:start;
}
.media-grid figure{
  margin:0;
  background:#fff;
  border:1px solid #e6efff;
  border-radius:12px;
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
/* Images: natural height, prevent overlap with caption */
.media-grid figure.image img{
  display:block;
  width:100%;
  height:auto;
}
/* Responsive spans for images */
@media(min-width:1080px){ .media-grid figure.image{ grid-column:span 3; } }   /* 4 per row */
@media(min-width:720px) and (max-width:1079px){ .media-grid figure.image{ grid-column:span 6; } } /* 2 per row */
@media(max-width:719px){ .media-grid figure.image{ grid-column:span 12; } }   /* 1 per row */

/* Videos: full row with landscape frame */
.media-grid figure.video{
  grid-column:1 / -1; /* occupy a full row */
}
.media-grid figure.video .media{
  width:100%;
  aspect-ratio:16/9;
  background:#0001;
}
.media-grid figure.video video{
  width:100%; height:100%;
  display:block; object-fit:cover;
}

/* Captions: centered and always below media */
figure figcaption{
  padding:10px 12px;
  color:var(--muted);
  font-size:14px;
  text-align:center;
  background:#fff;
}
.footer{padding:22px 0;color:#3d4c66}
.badge{position:fixed;right:12px;bottom:12px}

/* Neutralize any legacy brand pseudo-element logo */
.brand::before{content:none !important}

.brand{display:inline-flex;align-items:center;gap:10px;font-size:1.75rem;line-height:1}
@media(max-width:780px){.brand{font-size:1.5rem}}
.brand img.logo{height:56px;width:auto;margin-right:6px;display:inline-block;vertical-align:middle}
@media(max-width:780px){.brand img.logo{height:48px}}
/* Contact section: big message box at left, fields at right */
.contact-grid{
  display:grid;
  grid-template-columns: 2fr 1fr;
  gap:16px;
  align-items:start;
}
.contact-grid .msg-area label{display:block;margin-bottom:8px;font-weight:600;color:#203656}
.contact-grid .msg-area textarea{
  width:100%;
  min-height:240px;
  resize:vertical;
  padding:10px;
  border:1px solid #dfeaff;
  border-radius:10px;
  background:#fff;
}
.contact-grid .side-fields{display:grid;gap:10px}
.contact-grid .side-fields label{display:grid;gap:6px;font-weight:600;color:#203656}
.contact-grid .side-fields input{
  padding:8px 10px;
  border:1px solid #dfeaff;
  border-radius:10px;
  background:#fff;
}
.btn-submit{
  padding:10px 14px;border:1px solid #cfe0ff;background:#eaf2ff;border-radius:10px;cursor:pointer
}
.btn-submit:hover{background:#dfeaff}
.contact-fixed{
  margin-top:14px;padding:10px 12px;border:1px solid #e6efff;background:#f6faff;border-radius:10px;
  font-size:14px;color:#203656;line-height:1.6
}
@media(max-width: 900px){
  .contact-grid{grid-template-columns:1fr}
}

/* Two-row nav layout (fixed 4+4) */
.nav-inner{align-items:flex-start}
.navlinks.two-rows{display:flex;flex-direction:column;gap:6px;margin-left:auto}
.navlinks.two-rows .row{display:flex;gap:12px;flex-wrap:wrap}
/* Ensure brand aligns visually with the full height of two rows */
.brand{display:flex;align-items:flex-start;gap:10px}

/* Links section styles */
.links-grid{display:grid;gap:12px}
.links-cat h3{margin:6px 0 4px 0;font-size:16px;color:#203656}
.links-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;margin:0;padding:0;list-style:none}
.links-list li a{display:block;border:1px solid #dfeaff;background:#fff;border-radius:10px;padding:8px 10px}
.links-list li a:hover{background:#f6faff}

@media(max-width:780px){
  .navlinks.two-rows .row{gap:8px}
}

/* Safety line under brand; left indent is computed dynamically by JS */
.brand{flex-wrap:wrap}
.safety-line{
  flex-basis:100%; width:100%;
  margin-top:2px; color:#203656; opacity:.9;
  font-size:12px; line-height:1.2;
  margin-left:0;
}
@media (max-width: 900px){ header .navlinks, .navlinks.two-rows, .nav-inner .navlinks, nav.navlinks { display:none !important; } }
/* Footer: left copyright + right map link on same row */
.footer-bar{
  display:flex; align-items:center; justify-content:space-between;
  gap: 12px; flex-wrap: wrap;
}
.footer-bar .plant-link{
  text-decoration:none;
  color:#0b63c3; /* 和站点主色系接近 */
  font-weight:600;
}
.footer-bar .plant-link:hover{ text-decoration:underline; }