/* ============================================================
   鸿科电子 首页 v2 设计系统
   参考 zhaoneng-battery.com 设计语言：
   深蓝主色 + 亮黄点缀 / 浅灰渐变 hero 左右结构 / 白底卡片 + 深蓝底栏
   深蓝应用板块 / 小圆角 + 轻阴影 + 充足留白
   ============================================================ */

:root {
  --zn-navy: #0B2B4C;
  --zn-navy-2: #123C66;
  --zn-blue: #0B6FD8;
  --zn-amber: #F5A623;
  --zn-ink: #16283C;
  --zn-gray: #5C6B7D;
  --zn-line: #E3EAF2;
  --zn-bg: #F5F8FB;
}

/* ---------- 通用板块 ---------- */
.zn-section { padding: 84px 0; }
.zn-head { text-align: left; margin-bottom: 44px; }
.zn-head .zn-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.32em;
  color: var(--zn-blue);
  font-weight: 600;
  margin: 0 0 14px;
}
.zn-head .zn-eyebrow::before {
  content: '';
  width: 26px;
  height: 2px;
  background: var(--zn-amber);
  border-radius: 2px;
}
.zn-head h2 {
  font-size: clamp(1.6rem, 2.6vw, 2rem);
  font-weight: 800;
  color: var(--zn-ink);
  margin: 0;
  letter-spacing: 0.02em;
}
.zn-head .zn-rule {
  width: 46px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--zn-blue), #4DA3E8);
  margin: 14px 0 0;
}

/* ---------- 1. Hero（全屏背景轮播，如第一版背景墙） ---------- */
.zn-hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: flex-start;
  padding: 176px 0 80px;
  overflow: hidden;
  background: var(--zn-navy);
}
.zn-carousel {
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: 0;
  box-shadow: none;
  background: transparent;
  overflow: hidden;
}
.zn-carousel-track {
  height: 100%;
  display: flex;
  transition: transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.zn-slide {
  flex: 0 0 100%;
  height: 100%;
  display: block;
  background-size: cover;
  background-position: center;
  text-decoration: none;
}
.zn-hero-mask {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(100deg, rgba(4, 18, 34, 0.96) 0%, rgba(4, 18, 34, 0.84) 38%, rgba(4, 18, 34, 0.36) 100%);
  pointer-events: none;
}
.zn-hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  pointer-events: none;
}
.zn-hero-copy {
  max-width: 800px;
  pointer-events: auto;
}
.zn-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.94rem;
  letter-spacing: 0.3em;
  color: #8FC1F2;
  font-weight: 700;
  margin: 0 0 22px;
}
.zn-hero-eyebrow::before {
  content: '';
  width: 34px;
  height: 3px;
  border-radius: 2px;
  background: var(--zn-amber);
}
.zn-hero h1 {
  font-size: clamp(2.7rem, 5.2vw, 4.1rem);
  font-weight: 900;
  color: #fff;
  margin: 0 0 28px;
  line-height: 1.18;
  letter-spacing: 0.03em;
}
.zn-hero h1 .zn-mark {
  position: relative;
  color: #FFC84A;
  white-space: nowrap;
}
.zn-hero h1 .zn-mark::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 3px;
  height: 13px;
  background: rgba(11, 111, 216, 0.55);
  border-radius: 5px;
  z-index: -1;
}
.zn-hero-sub {
  font-size: 1.16rem;
  color: rgba(255, 255, 255, 0.86);
  line-height: 1.9;
  margin: 0 0 36px;
  max-width: 780px;
}
.zn-hero-sub p { margin: 0 0 4px; }
.zn-hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 38px; }

.zn-hero-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #FFD58A;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
}
.zn-hero-more:hover {
  color: #FFE3B3;
  transform: translateX(2px);
}
.zn-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 36px;
  border-radius: 6px;
  font-size: 1.05rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.zn-btn:hover { transform: translateY(-2px); }
.zn-btn-primary {
  background: var(--zn-blue);
  color: #fff;
  box-shadow: 0 8px 20px rgba(11, 111, 216, 0.28);
}
.zn-btn-primary:hover { background: #0A62BE; box-shadow: 0 12px 26px rgba(11, 111, 216, 0.34); }
.zn-btn-outline {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.75);
}
.zn-btn-outline:hover { background: rgba(255, 255, 255, 0.16); box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2); }
.zn-hero-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 40px;
  max-width: 720px;
}
.zn-hero-points li {
  position: relative;
  padding-left: 28px;
  font-size: 1rem;
  color: #fff;
  line-height: 1.6;
}
.zn-hero-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--zn-blue);
  box-shadow: inset 0 0 0 4px #fff;
  border: 1px solid var(--zn-blue);
}
.zn-hero-points li::after {
  content: '✓';
  position: absolute;
  left: 3.5px;
  top: 2px;
  font-size: 10px;
  color: #fff;
  font-weight: 900;
}
.zn-hero-float {
  position: absolute;
  right: 4%;
  bottom: 13%;
  left: auto;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 14px 36px rgba(4, 18, 34, 0.35);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 2;
}
.zn-hero-float .zn-float-ico {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--zn-blue), #4DA3E8);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.zn-hero-float b {
  display: block;
  font-size: 0.98rem;
  color: var(--zn-ink);
  letter-spacing: 0.04em;
}
.zn-hero-float span span {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  color: var(--zn-gray);
  margin-top: 3px;
}
/* 轮播控制 */
.zn-car-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 8px;
  background: rgba(23, 40, 60, 0.82);
  color: #fff;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
  z-index: 3;
  padding: 0 0 4px;
}
.zn-car-btn:hover { background: var(--zn-blue); }
.zn-prev { left: 16px; }
.zn-next { right: 16px; }
.zn-car-dots {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 24px;
  display: flex;
  gap: 8px;
  z-index: 3;
}
.zn-car-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all 0.25s ease;
}
.zn-car-dots span.is-active {
  width: 22px;
  border-radius: 4px;
  background: var(--zn-amber);
}

/* ---------- 2. 产品展示 ---------- */
.zn-products { background: #fff; }
.zn-prod-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 26px;
}
.zn-prod-card {
  display: block;
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(11, 43, 76, 0.05);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.zn-prod-card:hover {
  transform: translateY(-6px);
  border-color: rgba(11, 111, 216, 0.4);
  box-shadow: 0 18px 40px rgba(11, 43, 76, 0.14);
}
.zn-prod-card .zn-prod-img {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #F5F8FB;
}
.zn-prod-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.zn-prod-card:hover img { transform: scale(1.05); }
.zn-prod-card h3 {
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--zn-ink);
  margin: 0;
  padding: 20px 20px 14px;
  text-align: center;
}
.zn-prod-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--zn-navy);
  color: #fff;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 11px 16px;
  letter-spacing: 0.02em;
}
.zn-prod-bar .zn-arr {
  display: inline-block;
  transition: transform 0.25s ease;
  font-size: 0.9rem;
}
.zn-prod-card:hover .zn-arr { transform: translateX(5px); }

/* ---------- 3. 应用领域（深蓝板块） ---------- */
.zn-apps {
  background: linear-gradient(165deg, var(--zn-navy) 0%, var(--zn-navy-2) 100%);
  position: relative;
  overflow: hidden;
}
.zn-apps::before {
  content: '';
  position: absolute;
  right: -140px;
  top: -140px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(11, 111, 216, 0.28), rgba(11, 111, 216, 0) 70%);
  pointer-events: none;
}
.zn-apps::after {
  content: '';
  position: absolute;
  left: -160px;
  bottom: -180px;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 166, 35, 0.12), rgba(245, 166, 35, 0) 70%);
  pointer-events: none;
}
.zn-apps .zn-head h2 { color: #fff; }
.zn-apps .zn-head .zn-eyebrow { color: #7FB6EE; }
.zn-apps .zn-head .zn-eyebrow::before,
.zn-apps .zn-head .zn-eyebrow::after { background: var(--zn-amber); }
.zn-app-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 10px;
  margin-bottom: 40px;
  position: relative;
}
.zn-app-tab {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 1rem;
  font-weight: 600;
  padding: 10px 22px;
  cursor: pointer;
  transition: all 0.25s ease;
  letter-spacing: 0.02em;
  line-height: 1.4;
}
.zn-app-tab:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.75);
}
.zn-app-tab.is-active {
  background: #fff;
  color: var(--zn-navy);
  border-color: #fff;
}
.zn-app-panel {
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 34px 36px 36px;
}
.zn-app-info {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 28px;
  margin-bottom: 26px;
}
.zn-app-title {
  font-size: clamp(1.5rem, 2.4vw, 1.9rem);
  font-weight: 800;
  color: #fff;
  margin: 0;
}
.zn-app-desc {
  flex: 1;
  min-width: 260px;
  font-size: 0.98rem;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.8;
  margin: 0;
}
.zn-app-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--zn-amber);
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  transition: gap 0.25s ease;
}
.zn-app-more:hover { gap: 13px; }
.zn-app-strip-wrap { position: relative; }
.zn-app-strip {
  display: none;
  gap: 16px;
  padding: 2px;
}
.zn-app-strip.is-active { display: flex; }
.zn-app-strip a {
  flex: 1 1 0;
  min-width: 0;
  border-radius: 12px;
  overflow: hidden;
  display: block;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.zn-app-strip a:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.35);
}
.zn-app-strip img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
}
.zn-app-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 8px;
  background: rgba(8, 16, 28, 0.85);
  color: #fff;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  z-index: 3;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0 0 3px;
  transition: background 0.2s ease;
}
.zn-app-arrow:hover { background: var(--zn-blue); }
.zn-app-arrow-l { left: -10px; }
.zn-app-arrow-r { right: -10px; }

/* ---------- 4. 最新资讯 ---------- */
.zn-news { background: var(--zn-bg); }
.zn-news-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px;
}
.zn-news-card {
  display: flex;
  gap: 22px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 12px;
  padding: 26px 28px;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(11, 43, 76, 0.04);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.zn-news-card:hover {
  transform: translateY(-4px);
  border-color: rgba(11, 111, 216, 0.4);
  box-shadow: 0 14px 34px rgba(11, 43, 76, 0.12);
}
.zn-news-date {
  flex-shrink: 0;
  width: 64px;
  background: var(--zn-navy);
  border-radius: 10px;
  color: #fff;
  text-align: center;
  padding: 12px 6px;
}
.zn-news-date b {
  display: block;
  font-family: 'Orbitron', 'JetBrains Mono', monospace;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--zn-amber);
}
.zn-news-date span {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.82);
}
.zn-news-body { min-width: 0; }
.zn-news-body h3 {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--zn-ink);
  margin: 0 0 10px;
  line-height: 1.5;
  transition: color 0.2s ease;
}
.zn-news-card:hover h3 { color: var(--zn-blue); }
.zn-news-body p {
  font-size: 0.9rem;
  color: var(--zn-gray);
  line-height: 1.75;
  margin: 0 0 12px;
}
.zn-news-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--zn-blue);
}
.zn-news-card:hover .zn-news-more { color: #0A62BE; }

/* ---------- 5. 认证墙 ---------- */
.zn-certs { background: #fff; }
.zn-cert-wall {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: 12px;
}
.zn-cert-card {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 92px;
  aspect-ratio: 1;
  height: auto;
  justify-self: center;
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 50%;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(11, 43, 76, 0.06);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.zn-cert-card:hover {
  transform: translateY(-3px);
  border-color: rgba(11, 111, 216, 0.4);
  box-shadow: 0 10px 22px rgba(11, 43, 76, 0.12);
}
.zn-cert-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .zn-prod-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .zn-cert-wall { gap: 12px; }
  .zn-app-panel { padding: 26px 22px 28px; }
  .zn-app-arrow { width: 34px; height: 34px; font-size: 1.2rem; }
  .zn-app-arrow-l { left: -6px; }
  .zn-app-arrow-r { right: -6px; }
}
@media (max-width: 920px) {
  .zn-section { padding: 60px 0; }
  .zn-hero { padding: 150px 0 70px; }
  .zn-hero-sub { max-width: none; }
  .zn-hero-float { display: none; }
  .zn-car-btn { width: 36px; height: 36px; font-size: 1.3rem; }
  .zn-prev { left: 10px; }
  .zn-next { right: 10px; }
  .zn-news-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .zn-hero { padding: 138px 0 40px; }
  .zn-hero h1 { margin: 0 0 18px; }
  .zn-hero-sub { margin: 0 0 22px; }
  .zn-hero-actions { margin: 0 0 20px; }
  .zn-car-btn { top: auto; bottom: 69px; transform: none; width: 30px; height: 30px; font-size: 1.1rem; }
  .zn-prev { left: 8px; }
  .zn-next { right: 8px; }
  .zn-car-dots { bottom: 78px; }
  .zn-prod-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
  .zn-prod-card h3 { font-size: 0.98rem; padding: 14px 12px 10px; }
  .zn-prod-bar { font-size: 0.8rem; padding: 9px 10px; }
  .zn-app-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }
  .zn-app-tab { padding: 9px 6px; font-size: 0.9rem; text-align: center; }
  .zn-app-desc { min-width: 0; flex-basis: 100%; }
  .zn-app-strip {
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  .zn-app-strip::-webkit-scrollbar { display: none; }
  .zn-app-strip a { flex: 0 0 78vw; }
  .zn-app-arrow { display: flex; }
  .zn-app-arrow-l { left: -4px; }
  .zn-app-arrow-r { right: -4px; }
  .zn-cert-wall { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; }
  .zn-cert-card { max-width: 68px; }
  @media (max-width: 400px) {
    .zn-cert-card { max-width: 56px; }
  }
  @media (max-width: 340px) {
    .zn-car-btn { bottom: 40px; }
    .zn-car-dots { bottom: 56px; }
  }

  .zn-hero-points {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px 14px;
    max-width: 100%;
  }
  .zn-hero-points li {
    padding-left: 18px;
    font-size: 0.82rem;
    line-height: 1.5;
  }
  .zn-hero-points li::before {
    top: 2px;
    width: 12px;
    height: 12px;
    box-shadow: inset 0 0 0 3px #fff;
  }
  .zn-hero-points li::after {
    left: 2.5px;
    top: 1px;
    font-size: 8px;
  }
  .zn-hero-actions .zn-btn { flex: 1; justify-content: center; }
  .zn-slide:nth-child(1) { background-position: 64% center; }
  .zn-slide:nth-child(2) { background-position: 52% center; }
  .zn-slide:nth-child(3) { background-position: 50% center; }
  .zn-slide:nth-child(4) { background-position: 50% center; }
  .zn-head { margin-bottom: 34px; }
  .zn-hero-float { padding: 12px 14px; }
  .zn-hero-float b { font-size: 0.86rem; }
}


/* ---------- 独立产品展示页 ---------- */
.zn-page-hero {
  position: relative;
  padding: 168px 0 92px;
  overflow: hidden;
  background: var(--zn-navy);
}
.zn-page-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-size: cover;
  background-position: center;
}
.zn-page-hero-inner {
  position: relative;
  z-index: 2;
}
.zn-page-hero h1 {
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 900;
  color: #fff;
  margin: 0 0 18px;
  letter-spacing: 0.02em;
}
.zn-page-hero .zn-lead {
  font-size: 1.06rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.9;
  max-width: 1060px;
  margin: 0;
}
@media (max-width: 920px) {
  .zn-page-hero { padding: 140px 0 60px; }
}
.zn-pcards {
  display: grid;
  gap: 28px;
  max-width: 1060px;
  margin: 0 auto;
}
.zn-pcard {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 28px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 14px;
  padding: 30px;
  box-shadow: 0 6px 20px rgba(11, 43, 76, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.zn-pcard:hover {
  transform: translateY(-5px);
  border-color: rgba(11, 111, 216, 0.4);
  box-shadow: 0 18px 40px rgba(11, 43, 76, 0.13);
}
.zn-pcard-img {
  border-radius: 10px;
  overflow: hidden;
  background: #F5F8FB;
  min-width: 0;
}
.zn-pcard-img img {
  width: 100%;
  max-width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}
.zn-pcard > div { min-width: 0; }
.zn-pcard h2 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--zn-ink);
  margin: 0 0 4px;
}
.zn-pcard-en {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--zn-blue);
  margin: 0 0 14px;
  text-transform: uppercase;
}
.zn-pcard-desc {
  font-size: 0.95rem;
  color: var(--zn-gray);
  line-height: 1.8;
  margin: 0 0 18px;
}
.zn-pcard-specs {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}
.zn-pcard-specs li {
  position: relative;
  padding-left: 16px;
  font-size: 0.88rem;
  color: var(--zn-ink);
  line-height: 1.65;
}
.zn-pcard-specs li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--zn-blue), #4DA3E8);
}
.zn-pcard-specs b { font-weight: 700; }

@media (max-width: 920px) {

  .zn-pcards { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
  .zn-pcard {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 12px;
  }
  .zn-pcard > div { min-width: 0; }
  .zn-pcard-img { width: 100%; }
  .zn-pcard-img img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: 8px;
    aspect-ratio: auto;
  }
  .zn-pcard h2 { font-size: 0.95rem; margin: 0; }
  .zn-pcard-en { display: none; }
  .zn-pcard-desc { font-size: 0.82rem; line-height: 1.6; margin: 0; }
  .zn-pcard-specs { display: none; }
  .zn-pcard .zn-btn { display: none; }
}
@media (max-width: 640px) {
  .zn-pcard-specs { grid-template-columns: 1fr; }
}

/* ---------- 技术研发页（统一设计语言） ---------- */
.zn-tech-intro {
  position: relative;
  margin: 0 0 56px;
  padding: 26px 30px 26px 34px;
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 14px;
  box-shadow: 0 6px 20px rgba(11, 43, 76, 0.06);
  font-size: 1.05rem;
  line-height: 1.95;
  color: var(--zn-ink);
}
.zn-tech-intro::before {
  content: '';
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--zn-amber), #FFD58A);
}
.zn-tech-intro p { margin: 0; }

.zn-tech-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-bottom: 64px;
}
.zn-tech-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 14px;
  padding: 32px 30px 28px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(11, 43, 76, 0.05);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.zn-tech-card::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--zn-blue), #4DA3E8);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.zn-tech-card:hover {
  transform: translateY(-4px);
  border-color: rgba(11, 111, 216, 0.35);
  box-shadow: 0 12px 28px rgba(11, 43, 76, 0.12);
}
.zn-tech-card:hover::after { opacity: 1; }
.zn-tech-num {
  position: absolute;
  top: 10px;
  right: 18px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 2.6rem;
  font-weight: 700;
  line-height: 1;
  color: rgba(11, 43, 76, 0.08);
}
.zn-tech-card h3 {
  font-size: 1.18rem;
  font-weight: 800;
  color: var(--zn-navy);
  margin: 0 0 10px;
}
.zn-tech-card p {
  font-size: 0.95rem;
  color: var(--zn-gray);
  line-height: 1.8;
  margin: 0;
  max-width: 420px;
}

.zn-rnd-flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 64px;
}
.zn-rnd-step {
  position: relative;
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 14px;
  padding: 24px 18px 20px;
  box-shadow: 0 6px 20px rgba(11, 43, 76, 0.05);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.zn-rnd-step:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 166, 35, 0.6);
  box-shadow: 0 12px 28px rgba(11, 43, 76, 0.12);
}
.zn-rnd-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--zn-blue), #4DA3E8);
  color: #fff;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 800;
  font-size: 1rem;
  margin-bottom: 12px;
}
.zn-rnd-step h3 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--zn-navy);
  margin: 0 0 8px;
}
.zn-rnd-step p {
  font-size: 0.86rem;
  color: var(--zn-gray);
  line-height: 1.7;
  margin: 0;
}

.zn-qa-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 64px;
}
.zn-qa-card {
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 14px;
  padding: 24px 20px;
  box-shadow: 0 6px 20px rgba(11, 43, 76, 0.05);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.zn-qa-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 166, 35, 0.6);
  box-shadow: 0 12px 28px rgba(11, 43, 76, 0.12);
}
.zn-qa-card h3 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--zn-blue);
  margin: 0 0 8px;
}
.zn-qa-card p {
  font-size: 0.87rem;
  color: var(--zn-gray);
  line-height: 1.7;
  margin: 0;
}

.zn-test-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 84px;
}
.zn-test-tags span {
  padding: 9px 18px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--zn-line);
  color: var(--zn-ink);
  font-size: 0.9rem;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.zn-test-tags span:hover {
  border-color: var(--zn-amber);
  color: var(--zn-navy);
  background: #FFF8EC;
}

.zn-tech-cta {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px auto 0;
  width: fit-content;
  max-width: 100%;
  padding: 6px 8px 6px 16px;
  background: linear-gradient(120deg, var(--zn-navy), var(--zn-navy-2));
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.9rem;
  line-height: 1.8;
}
.zn-tech-cta a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 8px;
  background: var(--zn-amber);
  color: #1A2E45;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.zn-tech-cta a:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(245, 166, 35, 0.35);
}

@media (max-width: 1080px) {
  .zn-rnd-flow { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .zn-qa-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 920px) {
  .zn-tech-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .zn-tech-intro { margin-bottom: 48px; padding: 20px 20px 20px 24px; font-size: 0.98rem; }
  .zn-tech-grid { gap: 14px; margin-bottom: 52px; }
  .zn-rnd-flow { grid-template-columns: 1fr; gap: 12px; margin-bottom: 52px; }
  .zn-qa-grid { grid-template-columns: 1fr; gap: 12px; margin-bottom: 52px; }
  .zn-test-tags { margin-bottom: 24px; }
  .zn-tech-section, .zn-sol-section { padding-bottom: 20px; }
  .zn-tech-cta { flex-direction: column; align-items: flex-start; }
}

/* ---------- 常见问题页（统一设计语言） ---------- */
.faq-list {
  display: grid;
  gap: 16px;
  max-width: none;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 14px;
  box-shadow: 0 6px 20px rgba(11, 43, 76, 0.05);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.faq-item:hover {
  border-color: rgba(11, 111, 216, 0.45);
  box-shadow: 0 10px 26px rgba(11, 43, 76, 0.1);
}
.faq-q {
  margin: 0;
  padding: 22px 26px 0;
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--zn-navy);
  line-height: 1.6;
}
.faq-body { padding: 10px 26px 24px; }
.faq-body p {
  font-size: 0.95rem;
  color: var(--zn-gray);
  line-height: 1.9;
  margin: 0;
}
.faq-body a { color: var(--zn-blue); font-weight: 600; text-decoration: none; }
.faq-body a:hover { text-decoration: underline; }

/* ---------- 电池定制页（统一设计语言） ---------- */
.zn-process { margin-bottom: 72px; }
.zn-process .process { margin: 0; }
.zn-process .process::before {
  background: linear-gradient(90deg, var(--zn-blue), #4DA3E8);
}
.zn-process .step-node {
  background: #fff;
  border: 1.5px solid rgba(11, 111, 216, 0.5);
  color: var(--zn-blue);
  box-shadow: 0 4px 12px rgba(11, 43, 76, 0.08);
}
.zn-process .step:hover .step-node {
  border-color: var(--zn-amber);
  color: var(--zn-navy);
  background: #FFF8EC;
  box-shadow: 0 8px 18px rgba(245, 166, 35, 0.3);
}
.zn-process .step-name { color: var(--zn-navy); }
.zn-process .step-desc { color: var(--zn-gray); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 28px;
  align-items: stretch;
}
.contact-info,
.contact-form {
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 14px;
  box-shadow: 0 6px 20px rgba(11, 43, 76, 0.06);
  padding: 32px 34px;
}
.contact-info h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--zn-navy);
  margin-bottom: 10px;
}
.contact-info > p { color: var(--zn-gray); margin-bottom: 24px; max-width: 420px; }
.contact-list { display: grid; gap: 14px; }
.contact-list li {
  display: flex;
  gap: 18px;
  font-size: 0.95rem;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--zn-line);
}
.contact-k { min-width: 64px; color: var(--zn-gray); }
.contact-list a { color: var(--zn-blue); font-weight: 600; }
.contact-list a:hover { color: var(--zn-navy); }
.form-row { gap: 12px; }
.form-field { margin-bottom: 10px; }
.form-field label { color: var(--zn-gray); }
.form-field input,
.form-field textarea {
  background: var(--zn-bg);
  border: 1px solid var(--zn-line);
  border-radius: 8px;
  color: var(--zn-ink);
  padding: 10px 12px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--zn-blue);
  box-shadow: 0 0 0 3px rgba(11, 111, 216, 0.15);
}
.contact-form .btn-primary {
  margin-top: 8px;
  min-height: 46px;
  background: var(--zn-amber);
  color: #1A2E45;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(245, 166, 35, 0.3);
}
.contact-form .btn-primary:hover {
  transform: translateY(-2px);
  background: #F0A820;
  box-shadow: 0 12px 26px rgba(245, 166, 35, 0.4);
}

/* ---------- 关于我们页（统一设计语言） ---------- */
.zn-about-hero {
  display: flex;
  align-items: center;
  padding-top: 176px;
  padding-bottom: 96px;
}
.zn-about-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 56px;
  align-items: center;
  margin-top: 30px;
}
.zn-about-text p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.02rem;
  line-height: 2;
  margin: 0 0 16px;
}
.zn-about-text .zn-about-lead {
  font-size: 1.35rem;
  font-weight: 800;
  color: #FFD58A;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}
.zn-about-text .zn-btn { margin-top: 12px; }
.zn-about-cards {
  display: grid;
  gap: 16px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.zn-mini-card {
  display: flex;
  align-items: center;
  gap: 18px;
  background: #fff;
  border-radius: 14px;
  padding: 22px 24px;
  box-shadow: 0 10px 26px rgba(4, 18, 34, 0.28);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.zn-mini-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(4, 18, 34, 0.34);
}
.zn-mini-num {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 64px;
  height: 46px;
  padding: 0 10px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--zn-blue), #4DA3E8);
  color: #fff;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}
.zn-mini-card h3 {
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--zn-navy);
  margin: 0 0 4px;
}
.zn-mini-card p {
  font-size: 0.86rem;
  color: var(--zn-gray);
  margin: 0;
}

@media (max-width: 1080px) {
  .zn-about-grid { gap: 36px; }
}
@media (max-width: 920px) {
  .zn-about-hero { padding-top: 150px; padding-bottom: 70px; }
  .zn-about-grid { grid-template-columns: 1fr; gap: 36px; }
  .zn-about-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .zn-mini-card { flex-direction: column; align-items: flex-start; gap: 12px; padding: 20px; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .faq-q { padding: 18px 20px 0; font-size: 0.98rem; }
  .faq-body { padding: 8px 20px 18px; }
  .zn-about-cards { grid-template-columns: 1fr; }
  .zn-about-text p { font-size: 0.96rem; }
  .zn-about-text .zn-about-lead { font-size: 1.15rem; }
  .contact-info,
  .contact-form { padding: 22px 18px; }
  .zn-process { margin-bottom: 56px; }
}

/* ---------- 产品详情页（统一设计语言） ---------- */
.zn-prod-detail {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 28px;
  align-items: stretch;
  margin-bottom: 64px;
}
.zn-prod-photo {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 14px;
  padding: 32px;
  box-shadow: 0 6px 20px rgba(11, 43, 76, 0.06);
  min-width: 0;
}
.zn-prod-photo img {
  display: block;
  max-width: 100%;
  height: auto;
}
.zn-prod-info {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 14px;
  padding: 32px 34px;
  box-shadow: 0 6px 20px rgba(11, 43, 76, 0.06);
  min-width: 0;
}
.zn-prod-desc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--zn-blue);
  margin: 0 0 20px;
}
.zn-spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 26px;
}
.zn-spec-table th,
.zn-spec-table td {
  text-align: left;
  padding: 12px 14px;
  font-size: 0.95rem;
  border: 1px solid var(--zn-line);
}
.zn-spec-table th {
  width: 112px;
  background: #F0F6FC;
  color: var(--zn-navy);
  font-weight: 700;
  white-space: nowrap;
}
.zn-spec-table td {
  color: var(--zn-ink);
  white-space: nowrap;
}
.zn-prod-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: auto;
}
.zn-btn-line {
  background: #fff;
  color: var(--zn-navy);
  border: 1.5px solid var(--zn-line);
}
.zn-btn-line:hover {
  border-color: var(--zn-blue);
  color: var(--zn-blue);
  background: #F5F9FE;
}
.zn-app-tagwall {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}
.zn-app-tagwall span {
  padding: 9px 18px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--zn-line);
  color: var(--zn-ink);
  font-size: 0.9rem;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.zn-app-tagwall span:hover {
  border-color: var(--zn-amber);
  color: var(--zn-navy);
  background: #FFF8EC;
}

/* ---------- 解决方案页（统一设计语言） ---------- */
.zn-sol-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-bottom: 64px;
}
.zn-sol-card {
  display: grid;
  grid-template-columns: 56px 1fr 30px;
  gap: 20px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 14px;
  padding: 26px 26px;
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(11, 43, 76, 0.05);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.zn-sol-card:hover {
  transform: translateY(-4px);
  border-color: rgba(11, 111, 216, 0.4);
  box-shadow: 0 12px 28px rgba(11, 43, 76, 0.12);
}
.zn-sol-icon {
  flex: none;
  width: 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--zn-blue), #4DA3E8);
  box-shadow: 0 6px 14px rgba(11, 111, 216, 0.25);
}
.zn-sol-icon .icon-pin,
.zn-sol-icon .icon-hand,
.zn-sol-icon .icon-watch,
.zn-sol-icon .icon-cross,
.zn-sol-icon .icon-cube { border-color: #fff; }
.zn-sol-icon .icon-wave { background: #fff; }
.zn-sol-icon .icon-wave::before,
.zn-sol-icon .icon-wave::after {
  border-color: #fff;
  border-left-color: transparent;
  border-right-color: transparent;
  border-bottom-color: transparent;
}
.zn-sol-icon .icon-cross::before,
.zn-sol-icon .icon-cross::after { background: #fff; }
.zn-sol-card-body { min-width: 0; }
.zn-sol-card-body h3 {
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--zn-navy);
  margin: 0 0 8px;
}
.zn-sol-card-body p {
  font-size: 0.92rem;
  color: var(--zn-gray);
  line-height: 1.75;
  margin: 0 0 12px;
}
.zn-sol-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: #FFF8EC;
  border: 1px solid rgba(245, 166, 35, 0.45);
  color: #B07A10;
  font-size: 0.8rem;
  font-weight: 600;
}
.zn-sol-arrow {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #F0F6FC;
  color: var(--zn-blue);
  font-size: 1rem;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.zn-sol-card:hover .zn-sol-arrow {
  background: var(--zn-amber);
  color: #1A2E45;
  transform: translateX(3px);
}

.zn-sol-hls {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 64px;
}
.zn-sol-hl {
  position: relative;
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 14px;
  padding: 24px 20px;
  box-shadow: 0 6px 20px rgba(11, 43, 76, 0.05);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.zn-sol-hl:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 166, 35, 0.6);
  box-shadow: 0 12px 28px rgba(11, 43, 76, 0.12);
}
.zn-sol-hl h3 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--zn-blue);
  margin: 0 0 8px;
}
.zn-sol-hl p {
  font-size: 0.87rem;
  color: var(--zn-gray);
  line-height: 1.7;
  margin: 0;
}

.zn-sol-caps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 64px;
}
.zn-sol-cap {
  position: relative;
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 14px;
  padding: 22px 22px 22px 26px;
  box-shadow: 0 6px 20px rgba(11, 43, 76, 0.05);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.zn-sol-cap::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--zn-amber), #FFD58A);
}
.zn-sol-cap:hover {
  transform: translateY(-4px);
  border-color: rgba(11, 111, 216, 0.35);
  box-shadow: 0 12px 28px rgba(11, 43, 76, 0.12);
}
.zn-sol-cap h3 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--zn-navy);
  margin: 0 0 8px;
}
.zn-sol-cap p {
  font-size: 0.88rem;
  color: var(--zn-gray);
  line-height: 1.75;
  margin: 0;
}

.zn-sol-block {
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 14px;
  padding: 32px 36px;
  box-shadow: 0 6px 20px rgba(11, 43, 76, 0.05);
  margin-bottom: 28px;
}
.zn-sol-block-title {
  position: relative;
  font-size: 1.22rem;
  font-weight: 800;
  color: var(--zn-navy);
  margin: 0 0 16px;
  padding-left: 16px;
}
.zn-sol-block-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--zn-amber), #FFD58A);
}
.zn-sol-block > p {
  font-size: 0.97rem;
  color: var(--zn-gray);
  line-height: 1.95;
  margin: 0 0 14px;
}
.zn-sol-block-sub {
  font-size: 0.92rem;
  color: var(--zn-blue);
  margin-top: -8px !important;
}
.zn-tech-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 18px;
}
.zn-tech-col h4,
.zn-tech-bottom h4 {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--zn-blue);
  margin: 0 0 10px;
}
.zn-tech-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.zn-tech-chips span {
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--zn-bg);
  border: 1px solid var(--zn-line);
  color: var(--zn-ink);
  font-size: 0.85rem;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.zn-tech-chips span:hover {
  border-color: var(--zn-amber);
  color: var(--zn-navy);
  background: #FFF8EC;
}
.zn-sol-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.zn-sol-tags span {
  padding: 8px 16px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--zn-line);
  color: var(--zn-ink);
  font-size: 0.88rem;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.zn-sol-tags span:hover {
  border-color: var(--zn-blue);
  color: var(--zn-blue);
  background: #F5F9FE;
}
.zn-sol-prods {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.zn-sol-prod {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--zn-line);
  border-radius: 12px;
  padding: 16px;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  min-width: 0;
}
.zn-sol-prod:hover {
  transform: translateY(-3px);
  border-color: rgba(11, 111, 216, 0.4);
  box-shadow: 0 10px 22px rgba(11, 43, 76, 0.12);
}
.zn-sol-prod img {
  flex: none;
  width: 54px;
  height: 54px;
  object-fit: cover;
  border-radius: 10px;
}
.zn-sol-prod div { min-width: 0; }
.zn-sol-prod h3 {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--zn-navy);
  margin: 0 0 4px;
  line-height: 1.4;
}
.zn-sol-prod p {
  font-size: 0.8rem;
  color: var(--zn-blue);
  margin: 0;
}

.zn-sol-banner {
  position: relative;
  container-type: inline-size;
  background: linear-gradient(120deg, var(--zn-navy), var(--zn-navy-2));
  border-radius: 14px;
  padding: 26px 20px 26px 34px;
  margin-bottom: 24px;
}
.zn-sol-banner::before {
  content: '';
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--zn-amber), #FFD58A);
}
.zn-sol-banner p {
  color: rgba(255, 255, 255, 0.92);
  margin: 0;
  line-height: 1.8;
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: clamp(0.9rem, calc(100cqw / 55), 1.45rem);
}

.zn-page-hero .zn-hero-slogan {
  margin: 12px 0 0;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.62);
  letter-spacing: 0.02em;
}

@media (max-width: 1080px) {
  .zn-sol-caps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .zn-sol-hls { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .zn-sol-prods { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 920px) {
  .zn-prod-detail { grid-template-columns: 1fr; }
  .zn-sol-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
  .zn-tech-cols { grid-template-columns: 1fr; gap: 14px; }
}
@media (max-width: 640px) {
  .zn-prod-detail { gap: 18px; margin-bottom: 52px; }
  .zn-prod-photo { padding: 20px; }
  .zn-prod-info { padding: 22px 20px; }
  .zn-spec-table th { width: 108px; }
  .zn-spec-table th,
  .zn-spec-table td { padding: 10px 12px; font-size: 0.88rem; }
  .zn-spec-table td { white-space: normal; }
  .zn-prod-cta .zn-btn { flex: 1; justify-content: center; padding: 14px 20px; white-space: nowrap; }
  .zn-sol-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 14px;
  }
  .zn-sol-card .zn-sol-arrow { display: none; }
  .zn-sol-icon { width: 40px; height: 40px; border-radius: 10px; }
  .zn-sol-card-body h3 { font-size: 0.92rem; line-height: 1.4; }
  .zn-sol-card-body p {
    font-size: 0.8rem;
    line-height: 1.55;
    margin: 0 0 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .zn-sol-tag { font-size: 0.72rem; padding: 3px 9px; }
  .zn-sol-caps,
  .zn-sol-hls { grid-template-columns: 1fr; }
  .zn-sol-prods { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .zn-sol-prod { padding: 10px; gap: 10px; }
  .zn-sol-prod img { width: 40px; height: 40px; }
  .zn-sol-prod h3 { font-size: 0.8rem; }
  .zn-sol-prod p { font-size: 0.72rem; }
  .zn-sol-block { padding: 22px 20px; }
  .zn-sol-banner { padding: 20px 20px 20px 26px; }
}

/* ---------- 技术研发页 CTA：移动端两行布局 ---------- */
@media (max-width: 640px) {
  .zn-tech-cta {
    align-items: stretch;
    width: fit-content;
    padding: 6px 8px;
    gap: 8px;
    font-size: 0.84rem;
    line-height: 1.7;
  }
  .zn-tech-cta .zn-cta-dash { display: none; }
  .zn-tech-cta a {
    width: 100%;
    justify-content: center;
  }
}

/* ---------- 产品展示页背景墙：移动端定位到产品主体 ---------- */
@media (max-width: 640px) {
  .zn-page-hero--products .zn-page-hero-bg { background-position: 70% center; }
}