/* FFGAO 双语企业网站 - 全站样式 */
:root {
  --primary: #1f6f5c;
  --primary-dark: #165444;
  --accent: #e8a33d;
  --text: #2c3a47;
  --muted: #7b8794;
  --line: #e3e8ee;
  --bg: #f6f8fa;
  --card: #ffffff;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", Arial, sans-serif;
  color: var(--text); background: var(--bg); line-height: 1.7; }
img { max-width: 100%; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
.container { max-width: 1140px; margin: 0 auto; padding: 0 16px; }

/* 顶栏 */
.site-header { background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 50; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.logo { font-size: 24px; font-weight: 800; color: var(--primary); letter-spacing: .5px; }
.main-nav { list-style: none; display: flex; gap: 4px; flex-wrap: wrap; }
.main-nav a { display: block; padding: 8px 14px; color: var(--text); border-radius: 6px; font-weight: 500; }
.main-nav a:hover { background: var(--bg); color: var(--primary); }
.main-nav a.active { background: var(--primary); color: #fff; }
.lang-switch { display: flex; gap: 6px; }
.lang { padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px; font-size: 13px; color: var(--muted); }
.lang.current { background: var(--primary); border-color: var(--primary); color: #fff; }

/* Banner */
.hero { background-size: cover; background-position: center; color: #fff; padding: 72px 0; text-align: center;
  background-color: #24485f; }
.hero h1 { font-size: 34px; margin-bottom: 10px; text-shadow: 0 2px 8px rgba(0,0,0,.35); }
.hero p { font-size: 16px; opacity: .95; margin-bottom: 24px; }
.page-banner { background-size: cover; background-position: center; background-color: #2e5d7d;
  color: #fff; padding: 44px 0; }
.page-banner h2 { font-size: 30px; }
.page-banner p { opacity: .9; }

/* 首页板块 */
.home-section { padding: 48px 16px; }
.home-products { background: #fff; padding: 48px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-title { font-size: 26px; text-align: center; margin-bottom: 26px; position: relative; padding-bottom: 12px; }
.section-title::after { content: ""; display: block; width: 56px; height: 3px; background: var(--accent); margin: 10px auto 0; border-radius: 2px; }
.home-intro { max-width: 860px; margin: 0 auto; color: var(--muted); text-align: center; }
.home-news { list-style: none; max-width: 860px; margin: 0 auto; }
.home-news li { display: flex; gap: 14px; padding: 10px 4px; border-bottom: 1px dashed var(--line); }
.home-news .date { color: var(--accent); font-weight: 700; min-width: 48px; }

/* 主体布局 */
.page-main { padding: 34px 16px 56px; }
.content-with-sidebar { display: flex; gap: 28px; align-items: flex-start; }
.content-col { flex: 1 1 720px; min-width: 0; }
.sidebar-col { flex: 0 0 260px; }
.page-title { font-size: 26px; margin-bottom: 18px; padding-left: 12px; border-left: 4px solid var(--accent); }
.article-content { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 26px 28px; }
.article-content h1, .article-content h2, .article-content h3 { margin: 18px 0 10px; color: var(--primary-dark); }
.article-content p, .article-content li { margin: 8px 0; }
.article-content ul, .article-content ol { padding-left: 22px; }
.article-content img { border-radius: 8px; margin: 10px 0; }

.sidebar-card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px 20px; margin-bottom: 18px; }
.sidebar-card h3 { font-size: 17px; color: var(--primary-dark); margin-bottom: 10px; padding-bottom: 8px; border-bottom: 1px solid var(--line); }
.sidebar-card p { font-size: 14px; color: var(--muted); margin: 6px 0; }

/* 卡片网格 */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden;
  transition: transform .15s ease, box-shadow .15s ease; }
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 22px rgba(31,111,92,.13); }
.card img { width: 100%; height: 190px; object-fit: cover; display: block; background: #eef2f6; }
.card .noimg { height: 190px; background: linear-gradient(135deg, #e8eef4, #d5e1ea); }
.card-body { padding: 14px 16px 18px; }
.card-body h3 { font-size: 16px; margin-bottom: 4px; }
.card-body p { color: var(--muted); font-size: 14px; }

.panel { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 20px 22px; margin-bottom: 20px; }
.panel h3 { color: var(--primary-dark); margin-bottom: 12px; font-size: 18px; }
.item-main img.main-img { width: 100%; border-radius: 8px; background: #eef2f6; }

/* 表格 */
.spec-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.spec-table th, .spec-table td { border: 1px solid var(--line); padding: 8px 12px; text-align: left; }
.spec-table th { background: #f2f7f5; color: var(--primary-dark); white-space: nowrap; width: 130px; }
.data-table th { width: auto; background: var(--primary); color: #fff; }
.data-table tr:nth-child(even) td { background: #fafcfc; }
.table-wrap { overflow-x: auto; }

/* 图库 */
.gallery { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-start; }
.gallery-item { flex: 1 1 280px; min-width: 200px; max-width: 100%; }
.gallery-item img { width: 100%; height: auto; max-height: 480px; object-fit: contain; border-radius: 6px; background: #eef2f6;
  cursor: zoom-in; transition: transform .15s ease, box-shadow .15s ease; }
.zoom-hint { font-size: 13px; color: #8494a3; margin: 6px 0 12px; }
.site-video { width: 100%; max-height: 520px; display: block; background: #000; border-radius: 8px; }
.item-main .site-video { margin-top: 12px; }
.panel .site-video { margin: 4px 0 8px; }
.gallery.small { margin-top: 12px; }
.gallery.small .gallery-item { flex: 1 1 140px; min-width: 110px; }
.gallery.small .gallery-item img { max-height: 220px; }
.gallery-item img:hover { transform: translateY(-2px); box-shadow: 0 4px 14px rgba(0,0,0,.12); }

/* 新闻 */
.news-list { display: grid; gap: 16px; }
.news-item { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 20px 24px; }
.news-item h3 { font-size: 19px; margin-bottom: 4px; }
.news-item .meta { color: var(--muted); font-size: 13px; margin-bottom: 6px; }
.news-item p { color: var(--muted); }

/* 表单与按钮 */
.btn { display: inline-block; background: var(--primary); color: #fff; padding: 8px 18px; border-radius: 6px;
  border: none; cursor: pointer; font-size: 14px; transition: background .15s; }
.btn:hover { background: var(--primary-dark); color: #fff; }
.btn-lg { padding: 12px 30px; font-size: 16px; }
.btn-sm { padding: 4px 12px; font-size: 13px; }
.search-box { display: flex; gap: 10px; max-width: 560px; margin-bottom: 18px; }
.search-box input { flex: 1; padding: 10px 14px; border: 1px solid var(--line); border-radius: 6px; font-size: 15px; }
.crumbs { color: var(--muted); font-size: 14px; margin-bottom: 14px; }
.muted { color: var(--muted); }
.section-head { margin-bottom: 20px; }
.section-head h2 { font-size: 24px; }
.section-head p { color: var(--muted); }

/* 页脚 */
.site-footer { background: #22333f; color: #b8c6d1; padding: 26px 0; margin-top: 40px; font-size: 14px; }
.site-footer span { margin-right: 18px; }
.site-footer p { margin-top: 8px; opacity: .75; }

/* 响应式 */
@media (max-width: 900px) {
  .content-with-sidebar { flex-direction: column; }
  .sidebar-col { flex: auto; width: 100%; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 24px; }
}
@media (max-width: 560px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .main-nav { justify-content: center; }
}

/* ---------- lightbox ---------- */
.lb-overlay { position: fixed; inset: 0; z-index: 9999; background: rgba(13, 22, 31, .92);
  display: flex; align-items: center; justify-content: center; padding: 24px; }
.lb-overlay[aria-hidden="true"] { display: none; }
.lb-fig { margin: 0; max-width: 92vw; text-align: center; }
.lb-img { max-width: 92vw; max-height: 86vh; object-fit: contain; border-radius: 4px;
  box-shadow: 0 8px 40px rgba(0,0,0,.5); background: #fff; }
.lb-cap { color: #dfe9f2; margin-top: 10px; font-size: 14px; min-height: 1.2em; }
.lb-btn { position: absolute; border: none; cursor: pointer; color: #fff; background: rgba(255,255,255,.14);
  border-radius: 50%; width: 44px; height: 44px; font-size: 26px; line-height: 42px; padding: 0;
  transition: background .15s ease; }
.lb-btn:hover { background: rgba(255,255,255,.28); }
.lb-close { top: 16px; right: 16px; }
.lb-prev { left: 16px; top: 50%; margin-top: -22px; }
.lb-next { right: 16px; top: 50%; margin-top: -22px; }
@media (max-width: 640px) { .gallery-item, .gallery.small .gallery-item { flex: 1 1 100%; } }

/* ---- 文章视频列表（视频展示栏目等） ---- */
.video-list { margin: 18px 0 6px; display: flex; flex-direction: column; gap: 24px; }
.video-item { margin: 0; }
.video-item .site-video { width: 100%; max-width: 860px; display: block; border-radius: 10px; background: #000; box-shadow: 0 6px 18px rgba(0,0,0,.14); }
.video-caption { text-align: center; color: #556; font-size: 14px; margin-top: 8px; }

/* 知识专栏 */
.cat-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 18px; }
.cat-tabs a { padding: 6px 14px; border: 1px solid var(--line); border-radius: 20px; font-size: 14px; color: var(--text); text-decoration: none; transition: all .15s; }
.cat-tabs a:hover { border-color: var(--primary); color: var(--primary); }
.cat-tabs a.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 12px; background: #eef5f2; color: var(--primary); font-size: 12px; margin-right: 8px; vertical-align: 1px; }
.related { margin-top: 28px; padding: 16px 20px; background: var(--bg); border: 1px solid var(--line); border-radius: 6px; }
.related h3 { margin: 0 0 10px; font-size: 16px; color: var(--text); }
.related ul { list-style: none; margin: 0; padding: 0; }
.related li { padding: 5px 0; border-bottom: 1px dashed var(--line); }
.related li:last-child { border-bottom: none; }

.side-btns { display: flex; flex-wrap: wrap; gap: 10px 12px; margin-top: 14px; }
.side-btns .btn { margin: 0; }

/* 在线询盘 */
.btn-ghost { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
.btn-ghost:hover { background: var(--primary); color: #fff; }
.inq-form { max-width: 640px; }
.inq-form label { display: block; margin: 14px 0 6px; font-size: 14px; color: var(--text); }
.inq-form label .req { color: #c0392b; margin-left: 4px; font-size: 12px; }
.inq-form input[type=text], .inq-form input[type=email], .inq-form textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--line); border-radius: 6px; font-size: 14px; font-family: inherit; box-sizing: border-box; }
.inq-form textarea { min-height: 130px; resize: vertical; }
.inq-form input:focus, .inq-form textarea:focus { outline: none; border-color: var(--primary); }
.inq-row { display: flex; gap: 12px; }
.inq-row > div { flex: 1; }
.inq-captcha { display: flex; align-items: center; gap: 10px; margin-top: 14px; }
.inq-captcha img { height: 36px; border-radius: 4px; cursor: pointer; border: 1px solid var(--line); }
.inq-captcha a { font-size: 12px; color: var(--muted); }
.inq-product { background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 10px 14px; font-size: 14px; margin: 12px 0; }
.inq-ok { background: #eef7f1; border: 1px solid #bfe0cf; color: #1f6f5c; border-radius: 6px; padding: 18px 22px; margin: 10px 0 20px; }
.inq-err { background: #fdf0ee; border: 1px solid #f0c4bb; color: #c0392b; border-radius: 6px; padding: 10px 14px; margin: 10px 0; font-size: 14px; }
.inq-hp { position: absolute; left: -9999px; }
.inq-line { margin: 14px 0 0; }
.btn-inq { background: var(--accent); }
.status-pill { display: inline-block; padding: 2px 10px; border-radius: 12px; font-size: 12px; }
.status-no { background: #fdecea; color: #c0392b; }
.status-yes { background: #eef7f1; color: #1f6f5c; }