/* ============================================================
   宁波凌钧新材料科技有限公司官网 — 简约商务工业风
   主色 #183b64 深蓝 | 辅助 #e8eff7 浅灰蓝 | 强调 #f27022 橙
   ============================================================ */
:root {
  --primary: #183b64;
  --primary-dark: #102741;
  --primary-light: #24507f;
  --soft: #e8eff7;
  --soft-2: #f4f8fc;
  --accent: #f27022;
  --accent-dark: #d95f12;
  --text: #333a44;
  --muted: #6b7a8d;
  --line: #dfe7f0;
  --white: #ffffff;
  --shadow: 0 10px 30px rgba(24, 59, 100, 0.10);
  --radius: 10px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
/* English-only site: the static HTML is already English, so no anti-flash
   overlay is needed any more. */
.header-right { display: flex; align-items: center; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: 15px; }

.container { width: min(1180px, 92%); margin: 0 auto; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 40px; height: 40px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 15px; letter-spacing: 0.5px;
  flex-shrink: 0;
}
.logo-text { line-height: 1.25; }
.logo-text .cn { font-size: 18px; font-weight: 700; color: var(--primary); display: block; }
.logo-text .en { font-size: 11px; color: var(--muted); letter-spacing: 0.4px; }

.main-nav ul { display: flex; gap: 8px; }
.main-nav a {
  display: block; padding: 8px 18px; border-radius: 6px;
  font-size: 15.5px; color: var(--text); transition: all 0.2s;
}
.main-nav a:hover { color: var(--primary); background: var(--soft); }
.main-nav a.active { color: #fff; background: var(--primary); }

.nav-toggle { display: none; background: none; border: none; width: 42px; height: 42px; position: relative; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 9px; width: 24px; height: 2px;
  background: var(--primary); transition: all 0.25s;
}
.nav-toggle span { top: 20px; }
.nav-toggle span::before { top: -7px; left: 0; }
.nav-toggle span::after { top: 7px; left: 0; }
.nav-open .nav-toggle span { background: transparent; }
.nav-open .nav-toggle span::before { top: 0; transform: rotate(45deg); }
.nav-open .nav-toggle span::after { top: 0; transform: rotate(-45deg); }

/* ---------- Hero 横幅 ---------- */
.hero {
  background:
    linear-gradient(120deg, rgba(16, 39, 65, 0.92) 0%, rgba(24, 59, 100, 0.88) 55%, rgba(36, 80, 127, 0.82) 100%),
    repeating-linear-gradient(90deg, transparent 0 78px, rgba(255,255,255,0.045) 78px 79px),
    repeating-linear-gradient(0deg, transparent 0 78px, rgba(255,255,255,0.045) 78px 79px);
  color: #fff;
  padding: 88px 0 96px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; right: -140px; top: -140px;
  width: 430px; height: 430px; border-radius: 50%;
  border: 46px solid rgba(242, 112, 34, 0.16);
}
.hero-kicker {
  display: inline-block; font-size: 13px; letter-spacing: 2px;
  border: 1px solid rgba(255,255,255,0.4); border-radius: 999px;
  padding: 4px 16px; margin-bottom: 22px; color: #cfe0f2;
}
.hero h1 { font-size: clamp(26px, 4.2vw, 44px); line-height: 1.35; margin-bottom: 18px; }
.hero p {
  max-width: 760px; font-size: clamp(15px, 1.6vw, 17px);
  color: #d7e3f0; margin-bottom: 34px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 30px; border-radius: 6px; font-size: 15.5px;
  border: none; transition: all 0.2s; white-space: nowrap;
}
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(242, 112, 34, 0.35); }
.btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.55); }
.btn-ghost:hover { background: rgba(255,255,255,0.12); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); }
.btn-sm { padding: 8px 18px; font-size: 14px; }

/* ---------- 通用区块 ---------- */
.section { padding: 72px 0; }
.section.soft { background: var(--soft-2); }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 46px; }
.section-head .en {
  font-size: 12px; letter-spacing: 3px; color: var(--accent);
  text-transform: uppercase; font-weight: 600;
}
.section-head h2 {
  font-size: clamp(22px, 3vw, 30px); color: var(--primary);
  margin: 8px 0 12px;
}
.section-head .bar { width: 46px; height: 3px; background: var(--accent); margin: 0 auto; }
.section-head p { color: var(--muted); margin-top: 14px; text-align: justify; text-align-last: center; }

/* ---------- 首页简介 ---------- */
.intro-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.intro-text p { color: var(--text); margin-bottom: 16px; text-align: justify; }
.intro-points { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 8px; }
.intro-points li {
  background: var(--soft); border-radius: 8px; padding: 14px 16px;
  font-size: 14.5px; color: var(--primary); font-weight: 600;
  display: flex; align-items: center; gap: 10px;
}
.intro-points li::before {
  content: ""; width: 8px; height: 8px; border-radius: 2px;
  background: var(--accent); flex-shrink: 0;
}
.intro-visual {
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  aspect-ratio: 4 / 3; background: linear-gradient(135deg, var(--primary), var(--primary-light));
  position: relative;
}
.intro-visual svg { width: 100%; height: 100%; }

/* ---------- 分类卡片 ---------- */
.cat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.cat-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 36px 32px; transition: all 0.3s ease; position: relative; overflow: hidden;
}
.cat-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--accent); transform: scaleY(0); transform-origin: top;
  transition: transform 0.3s ease;
}
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.cat-card:hover::before { transform: scaleY(1); }
.cat-num {
  font-size: 13px; font-weight: 700; color: var(--accent);
  letter-spacing: 2px; margin-bottom: 10px;
}
.cat-card h3 { font-size: 21px; color: var(--primary); margin-bottom: 14px; }
.cat-card p { color: var(--muted); font-size: 15px; text-align: justify; margin-bottom: 20px; }
.cat-card .link { color: var(--accent); font-weight: 600; font-size: 14.5px; }
.cat-card .link:hover { text-decoration: underline; }

/* ---------- 优势 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 24px; text-align: center; transition: all 0.3s ease;
}
.feature:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.feature .icon {
  width: 58px; height: 58px; margin: 0 auto 16px; border-radius: 14px;
  background: var(--soft); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
}
.feature .icon svg { width: 28px; height: 28px; }
.feature h3 { font-size: 17px; color: var(--primary); margin-bottom: 8px; }
.feature p { font-size: 14px; color: var(--muted); }

/* ---------- CTA 条 ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--primary-dark), var(--primary));
  color: #fff; padding: 52px 0;
}
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-inner h2 { font-size: clamp(19px, 2.4vw, 26px); margin-bottom: 6px; }
.cta-inner p { color: #c8d8ea; font-size: 15px; }

/* ---------- 产品页 ---------- */
.cat-intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-bottom: 54px; }
.cat-intro {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 30px; transition: all 0.3s ease;
}
.cat-intro:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.cat-intro h3 { color: var(--primary); font-size: 19px; margin-bottom: 12px; padding-left: 14px; border-left: 4px solid var(--accent); }
.cat-intro p { color: var(--muted); font-size: 15px; text-align: justify; }

.filter-bar { display: flex; gap: 10px; justify-content: center; margin-bottom: 34px; flex-wrap: wrap; }
.filter-btn {
  padding: 8px 22px; border-radius: 999px; border: 1px solid var(--line);
  background: #fff; color: var(--muted); font-size: 14.5px; transition: all 0.2s;
}
.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.product-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: all 0.3s ease; display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-8px); box-shadow: var(--shadow); }
.product-thumb {
  aspect-ratio: 4 / 3; overflow: hidden; background: var(--soft);
  position: relative; display: flex; align-items: center; justify-content: center;
}
.product-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.product-card:hover .product-thumb img { transform: scale(1.05); }
.product-thumb .ph {
  width: 100%; height: 100%;
  background:
    radial-gradient(circle at 30% 25%, rgba(255,255,255,0.16), transparent 55%),
    linear-gradient(135deg, #24507f, #183b64);
  display: flex; align-items: center; justify-content: center;
}
.product-thumb .ph svg { width: 34%; opacity: 0.85; }
.product-body { padding: 22px 22px 26px; flex: 1; display: flex; flex-direction: column; }
.product-tag {
  align-self: flex-start; font-size: 12px; color: var(--accent);
  border: 1px solid var(--accent); border-radius: 999px; padding: 2px 12px; margin-bottom: 10px;
}
.product-body h3 { font-size: 18px; color: var(--primary); margin-bottom: 8px; }
.product-body p { font-size: 14px; color: var(--muted); text-align: justify; flex: 1; }
.product-empty { text-align: center; color: var(--muted); padding: 46px 0; grid-column: 1 / -1; }

/* ---------- 公司介绍页 ---------- */
.page-banner {
  background:
    linear-gradient(120deg, rgba(16,39,65,0.94), rgba(24,59,100,0.86)),
    repeating-linear-gradient(90deg, transparent 0 78px, rgba(255,255,255,0.05) 78px 79px);
  color: #fff; text-align: center; padding: 64px 0;
}
.page-banner h1 { font-size: clamp(24px, 3.4vw, 34px); }
.page-banner .crumb { margin-top: 10px; font-size: 13.5px; color: #b9cbe0; }
.article {
  max-width: 860px; margin: 0 auto; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 48px 52px; box-shadow: var(--shadow);
}
.article p { margin-bottom: 18px; text-align: justify; font-size: 15.5px; }
.article .lead { font-size: 17px; color: var(--primary); font-weight: 600; }

.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; max-width: 1000px; margin: 48px auto 0; }
.value-item {
  background: var(--soft-2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 22px; text-align: center; transition: all 0.3s;
}
.value-item:hover { background: #fff; box-shadow: var(--shadow); transform: translateY(-4px); }
.value-item h4 { color: var(--primary); font-size: 16px; margin-bottom: 8px; }
.value-item p { font-size: 13.5px; color: var(--muted); }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
.contact-info-card {
  background: linear-gradient(150deg, var(--primary-dark), var(--primary));
  color: #fff; border-radius: var(--radius); padding: 40px 38px;
}
.contact-info-card h3 { font-size: 21px; margin-bottom: 8px; }
.contact-info-card > p { color: #c8d8ea; font-size: 14.5px; margin-bottom: 26px; }
.contact-line { display: flex; gap: 14px; padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,0.14); align-items: flex-start; }
.contact-line:last-of-type { border-bottom: none; }
.contact-line .ico {
  width: 40px; height: 40px; border-radius: 10px; flex-shrink: 0;
  background: rgba(255,255,255,0.12); display: flex; align-items: center; justify-content: center;
}
.contact-line .ico svg { width: 20px; height: 20px; }
.contact-line .lbl { font-size: 12.5px; color: #9fb6ce; }
.contact-line .val { font-size: 15.5px; word-break: break-all; }
.contact-line .val.empty { color: #9fb6ce; font-size: 14px; }

.qr-row { display: flex; gap: 22px; margin-top: 26px; flex-wrap: wrap; }
.qr-box {
  flex: 1; min-width: 130px; background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18); border-radius: 10px;
  padding: 14px; text-align: center;
}
.qr-box .qr-img {
  width: 118px; height: 118px; margin: 0 auto 8px; background: #fff;
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.qr-box .qr-img img { width: 100%; height: 100%; object-fit: contain; }
.qr-box .qr-img .qr-empty { color: #94a9c0; font-size: 11.5px; padding: 6px; text-align: center; }
.qr-box span { font-size: 13px; color: #d7e3f0; }

.inquiry-form-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 40px 38px; box-shadow: var(--shadow);
}
.inquiry-form-card h3 { color: var(--primary); font-size: 21px; margin-bottom: 6px; }
.inquiry-form-card > p { color: var(--muted); font-size: 14px; margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; color: var(--primary); font-weight: 600; margin-bottom: 6px; }
.form-group label .req { color: var(--accent); }
.form-group input, .form-group textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 6px;
  padding: 11px 14px; outline: none; transition: border 0.2s; background: var(--soft-2);
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--primary); background: #fff; }
.form-group textarea { min-height: 110px; resize: vertical; }
.form-msg { font-size: 14px; margin-top: 12px; display: none; padding: 10px 14px; border-radius: 6px; }
.form-msg.ok { display: block; background: #e8f6ec; color: #1c7c3c; border: 1px solid #bfe5cc; }
.form-msg.err { display: block; background: #fdeeee; color: #c0392b; border: 1px solid #f2c4c0; }

/* ---------- 底部 ---------- */
.site-footer { background: var(--primary-dark); color: #b9cbe0; margin-top: 0; }
.footer-main { padding: 52px 0 36px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr auto; gap: 44px; align-items: start; }
.footer-brand .logo-text .cn { color: #fff; }
.footer-brand .logo-text .en { color: #8aa3c0; }
.footer-brand p { font-size: 14px; margin-top: 16px; max-width: 380px; }
.footer-contact { font-size: 14px; line-height: 2.1; }
.footer-contact .f-title { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 10px; }
.footer-contact .f-item { display: flex; gap: 8px; }
.footer-contact .f-item .k { color: #8aa3c0; flex-shrink: 0; }
.footer-contact .f-item .v { word-break: break-all; }
.footer-contact .f-item .v.empty { color: #7c93ad; }
.footer-qr { display: flex; gap: 20px; }
.footer-qr .qr-box { background: rgba(255,255,255,0.07); border-color: rgba(255,255,255,0.15); }
.footer-qr .qr-box .qr-img { background: #fff; }
.footer-qr .qr-box .qr-img .qr-empty { color: #94a9c0; }
.footer-bar {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 18px 0; font-size: 13px; text-align: center; color: #8aa3c0;
}
.footer-bar a:hover { color: #fff; }
.footer-bar .admin-link { margin-left: 14px; opacity: 0.75; }
.footer-bar .admin-link:hover { opacity: 1; color: var(--accent); }

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed; right: 22px; bottom: 30px; z-index: 90;
  width: 44px; height: 44px; border-radius: 8px; border: none;
  background: var(--accent); color: #fff; font-size: 18px;
  display: none; align-items: center; justify-content: center;
  box-shadow: 0 6px 16px rgba(242, 112, 34, 0.4); transition: opacity 0.2s;
}
.back-top.show { display: flex; }
.back-top:hover { background: var(--accent-dark); }

/* ---------- 响应式（移动端） ---------- */
@media (max-width: 900px) {
  .section { padding: 52px 0; }
  .intro-grid, .cat-grid, .cat-intro-grid, .contact-grid { grid-template-columns: 1fr; gap: 28px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .value-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-qr { justify-content: flex-start; }
  .article { padding: 32px 24px; }
  .hero { padding: 60px 0 70px; }
  .hero::after { display: none; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  .nav-toggle { display: block; }
  .main-nav {
    position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    display: none; box-shadow: 0 14px 24px rgba(24,59,100,0.10);
  }
  .nav-open .main-nav { display: block; }
  .main-nav ul { flex-direction: column; padding: 10px 4%; gap: 2px; }
  .main-nav a { padding: 13px 14px; }
  .product-grid { grid-template-columns: 1fr; }
  .feature-grid { gap: 14px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-qr { flex-direction: column; }   /* 移动端二维码上下排布 */
  .qr-row { flex-direction: column; }
  .footer-qr .qr-box { width: 100%; }
  .intro-points { grid-template-columns: 1fr; }
  .cat-card, .cat-intro, .inquiry-form-card, .contact-info-card { padding: 26px 22px; }
  .cta-inner { justify-content: center; text-align: center; }
}

/* ============================================================
   社媒图标（页脚 + 联系我们页 Overseas Contact）
   ============================================================ */
:root { --social-gap: 20px; }

.social-row {
  display: flex;
  flex-wrap: wrap;          /* 数量多或屏幕窄时自动换行 */
  align-items: center;
  gap: var(--social-gap);   /* 图标间距 20px */
  position: relative;
  z-index: 1;               /* 参与层级，避免被页脚其它元素覆盖 */
}

.social-row .social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  /* 视觉上仍是 20px 图标，但可点击热区扩大到 32px（下称 hitbox）：
     只用 padding + 负 margin，不改变行内占位与图标之间的视觉间距。 */
  width: 20px;
  height: 20px;
  padding: 6px;
  margin: -6px;
  box-sizing: content-box;
  background: none;
  border: 0;
  text-decoration: none;
  color: #fff;              /* 白色图标，由 svg 的 fill:currentColor 继承 */
  opacity: 0.9;
  cursor: pointer;          /* 明确可点击，移动端点击高亮更准 */
  pointer-events: auto;     /* 任何父级误设 none 时也能点 */
  -webkit-tap-highlight-color: transparent;
  transition: opacity 0.28s ease;   /* 柔和过渡 */
}
.social-row .social-link svg {
  width: 20px;
  height: 20px;
  display: block;
  fill: currentColor;
  pointer-events: none;     /* 点击落在 <a> 本身，不落在 svg 上，热区更完整 */
}
.social-row .social-link:hover,
.social-row .social-link:focus-visible {
  opacity: 0.55;            /* 悬浮轻微降低透明度 */
}
.social-row .social-link:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.7);
  outline-offset: 2px;
  border-radius: 5px;
}

/* 页脚社媒行：独立于 footer-main / footer-bar，不改动原有布局 */
.footer-social { padding: 2px 0 30px; position: relative; z-index: 1; }

/* 右下角有固定的「在线客服」悬浮球与「返回顶部」按钮（fixed, right 16~22px / bottom 30px）。
   页脚社媒行若正好排到那个高度，右上角图标会被盖住点不到。
   这里给社媒行留出右侧安全间距：图标整体左移，或在其右侧补足悬浮件宽度，
   保证每个图标都完整落在可点击区域内。 */
.footer-social .container { padding-right: 100px; }

/* 联系我们页：Overseas Contact 模块（深蓝底、白字白图标） */
.overseas-section { padding-top: 0; }
.overseas-card {
  background: linear-gradient(150deg, var(--primary-dark), var(--primary));
  color: #fff;
  border-radius: var(--radius);
  padding: 38px 38px 34px;
  box-shadow: var(--shadow);
}
.overseas-card h3 {
  font-size: 21px;
  margin-bottom: 10px;
  letter-spacing: 0.3px;
}
.overseas-card > p {
  color: #c8d8ea;
  font-size: 14.5px;
  max-width: 640px;
  margin-bottom: 24px;
}
.overseas-card .social-row { gap: var(--social-gap); }

@media (max-width: 768px) {
  .footer-social { padding: 0 0 24px; }
  .overseas-card { padding: 28px 24px 26px; }
  .overseas-card h3 { font-size: 19px; }
}

/* 窄屏：悬浮客服球 66px（css/chat.css），社媒行再让出更多右侧空间，
   并允许图标换行以免被右侧悬浮件压住。 */
@media (max-width: 640px) {
  .footer-social .container { padding-right: 88px; }
}

/* ============================================================
   产品卡片：整卡可点击进入详情页
   ============================================================ */
a.product-card { text-decoration: none; color: inherit; }
.product-card .product-more {
  margin-top: 14px; font-size: 13.5px; color: var(--accent); font-weight: 600;
  display: inline-flex; align-items: center; gap: 5px;
}
.product-card .product-more::after { content: "\203A"; font-size: 16px; line-height: 1; transition: transform 0.25s; }
.product-card:hover .product-more::after { transform: translateX(3px); }

/* 浅色底上的描边按钮 */
.btn-outline { background: #fff; color: var(--primary); border: 1px solid var(--line); }
.btn-outline:hover { border-color: var(--primary); transform: translateY(-2px); }

/* ============================================================
   产品详情页（图集展示）
   ============================================================ */
.pd-wrap { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); gap: 48px; align-items: start; }
.pd-media { min-width: 0; }
.pd-main {
  position: relative; aspect-ratio: 4 / 3; border-radius: var(--radius); overflow: hidden;
  background: var(--soft); border: 1px solid var(--line); cursor: zoom-in;
  display: flex; align-items: center; justify-content: center;
}
.pd-main img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pd-main .ph {
  width: 100%; height: 100%;
  background:
    radial-gradient(circle at 30% 25%, rgba(255,255,255,0.16), transparent 55%),
    linear-gradient(135deg, #24507f, #183b64);
  display: flex; align-items: center; justify-content: center;
}
.pd-main .ph svg { width: 34%; opacity: 0.85; }
.pd-zoom {
  position: absolute; right: 12px; bottom: 12px; background: rgba(16,39,65,0.78);
  color: #fff; font-size: 12.5px; padding: 5px 12px; border-radius: 999px; pointer-events: none;
}
.pd-thumbs { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.pd-thumb {
  width: 84px; height: 84px; border-radius: 8px; overflow: hidden; padding: 0;
  border: 2px solid transparent; background: var(--soft); cursor: pointer; transition: border-color 0.2s;
}
.pd-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pd-thumb.active { border-color: var(--accent); }
.pd-thumb:hover { border-color: var(--primary); }
.pd-info { min-width: 0; }
.pd-info h1 { font-size: clamp(21px, 2.6vw, 28px); color: var(--primary); margin: 10px 0 16px; line-height: 1.4; }
.pd-info .pd-desc { color: var(--muted); font-size: 15.5px; line-height: 1.9; text-align: justify; margin-bottom: 16px; }
.pd-info .pd-note {
  background: var(--soft-2); border-left: 3px solid var(--accent); border-radius: 6px;
  padding: 12px 16px; font-size: 14px; color: var(--muted); margin-bottom: 26px; text-align: justify;
}
.pd-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.pd-count { font-size: 13.5px; color: var(--muted); margin-bottom: 6px; }
.pd-empty { text-align: center; padding: 60px 0 70px; }
.pd-empty h2 { color: var(--primary); font-size: 22px; margin-bottom: 12px; }
.pd-empty p { color: var(--muted); margin-bottom: 26px; }

@media (max-width: 900px) {
  .pd-wrap { grid-template-columns: 1fr; gap: 28px; }
  .pd-thumb { width: 70px; height: 70px; }
}

/* ============================================================
   图片放大弹窗
   ============================================================ */
body.lb-open { overflow: hidden; }
.lj-lightbox {
  position: fixed; inset: 0; z-index: 9999; background: rgba(10, 20, 34, 0.92);
  display: flex; align-items: center; justify-content: center; padding: 40px;
}
.lj-lightbox .lb-img {
  max-width: 100%; max-height: 100%; object-fit: contain; border-radius: 6px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.lj-lightbox .lb-close {
  position: absolute; right: 20px; top: 16px; width: 42px; height: 42px; border: none;
  border-radius: 50%; background: rgba(255,255,255,0.14); color: #fff; font-size: 26px;
  line-height: 1; cursor: pointer; transition: background 0.2s;
}
.lj-lightbox .lb-close:hover { background: rgba(242,112,34,0.9); }
.lj-lightbox .lb-nav {
  position: absolute; top: 50%; transform: translateY(-50%); width: 46px; height: 46px;
  border: none; border-radius: 50%; background: rgba(255,255,255,0.14); color: #fff;
  font-size: 26px; line-height: 1; cursor: pointer; transition: background 0.2s;
}
.lj-lightbox .lb-nav:hover { background: rgba(242,112,34,0.9); }
.lj-lightbox .lb-prev { left: 20px; }
.lj-lightbox .lb-next { right: 20px; }
.lj-lightbox .lb-count {
  position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%);
  color: #dbe6f2; font-size: 13.5px; letter-spacing: 1px;
}
@media (max-width: 768px) {
  .lj-lightbox { padding: 14px; }
  .lj-lightbox .lb-nav { width: 38px; height: 38px; font-size: 22px; }
  .lj-lightbox .lb-prev { left: 8px; }
  .lj-lightbox .lb-next { right: 8px; }
}