/* =========================================================
   Eagle Lighting — Industrial LED Projection Design System (v4)
   ========================================================= */

:root {
  /* Brand colors for the Eagle Lighting industrial LED projection site */
  --primary: #e3a83e;      /* Energetic Emerald Green */
  --primary-hover: #c98f2a;
  --primary-dark: #b07d1f;   /* 404 页大字渐变等深色端 */
  --dark-navy: #1e3a5f;    /* Steel blue for dark blocks (page hero / consult) */
  --dark-navy-alt: #2d5482;
  --on-dark-muted: #d6e0ec; /* 钢蓝底上的次级文字 */
  --ink: #111827;          /* Near black for body text */
  --slate: #4b5563;        /* Warm slate for body text */
  --slate-light: #9ca3af;  /* Light grey text */
  --bg-light: #f9fafb;     /* Main background alternate */
  --bg-white: #ffffff;
  --line: #e5e7eb;         /* Light line borders */
  --shadow-subtle: 0 4px 18px rgba(0, 0, 0, 0.04);
  --shadow-hover: 0 12px 30px rgba(0, 0, 0, 0.08);
  --shadow-green: 0 8px 24px rgba(227, 168, 62, 0.25);
  
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --radius-md: 12px;
  --radius-lg: 20px;
}

/* ---------- Reset & Base ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: #ffffff;
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ---------- Layout helpers ---------- */
.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.section { padding: 48px 0; background: var(--bg-white); }
.section--alt { background: var(--bg-light); }
.section--dark { background: linear-gradient(135deg, var(--dark-navy) 0%, var(--dark-navy-alt) 100%); color: #f3f4f6; }

/* Heading style with green vertical bar (exact match) */
.section-title-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.section-desc {          /* section 标题下的描述段（首页案例区/博客预告等） */
  color: var(--slate);
  max-width: 720px;
  margin: -8px 0 24px;
}
.page-hero .section-title-wrap { margin-bottom: 14px; }  /* 页眉内标题用 h1 节奏 */
/* scroll reveal 动画（main.js IntersectionObserver 加 .in） */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .5s ease, transform .5s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }
.section-title-wrap .bar {
  width: 5px;
  height: 28px;
  background: var(--primary);
  border-radius: 2px;
}
.section-title-wrap h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--ink);
}
.section--dark .section-title-wrap h2 {
  color: #ffffff;
}

/* ---------- Header & Top Bar ---------- */
.top-bar {
  background: var(--primary-hover);
  color: #ffffff;
  font-size: 13px;
  font-weight: 500;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
/* 首页首屏寸土寸金：隐藏顶部联系条，让 hero 文案/投影/卖点卡一屏可见。
   联系信息在导航(报价按钮)、悬浮卡、页脚、联系页均有入口，不损失转化。
   仅首页隐藏，其它页面(about/contact/blog/products)保留。 */
.top-bar:has(+ .site-header + .mobile-menu + .hero) { display: none; }
.top-bar-left {
  display: flex;
  align-items: center;
  gap: 20px;
}
.top-bar-right {
  margin-left: auto; /* 长地址换行时仍靠右对齐，避免与左栏错位 */
}
.top-bar-right .top-bar-item {
  font-size: 12px;   /* 长地址（尤其全大写英文）缩字号，尽量一行放下 */
}
.top-bar-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.9);
}
.top-bar-item svg {
  width: 14px;
  height: 14px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
  transition: all 0.25s ease;
}
.site-header.scrolled {
  padding: 4px 0;
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.brand .logo-img {
  height: 38px;
  width: auto;
}
.brand span {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 800;
  color: #2c3e50;
  letter-spacing: -0.5px;
}
.brand b {
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-links a {
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 600;
  color: #4b5563;
  border-radius: 8px;
  transition: all 0.2s ease;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--primary);
  background: rgba(227, 168, 62, 0.05);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 18px; height: 2px; background: var(--slate); border-radius: 2px; transition: .2s;
}
.nav-toggle span { position: relative; }
.nav-toggle span::before { position: absolute; top: -5px; }
.nav-toggle span::after { position: absolute; top: 5px; }

/* ---------- Mega Menu (Product Dropdown) ---------- */
.nav-item-has-dropdown {
  position: relative;
}
.nav-item-has-dropdown > a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 600;
  color: #4b5563;
  border-radius: 8px;
  transition: all 0.2s ease;
}
.nav-item-has-dropdown > a:hover,
.nav-item-has-dropdown.open > a {
  color: var(--primary);
  background: rgba(227, 168, 62, 0.05);
}
.nav-caret {
  font-size: 10px;
  transition: transform 0.25s ease;
  margin-top: -2px;
}
.nav-item-has-dropdown.open .nav-caret,
.nav-item-has-dropdown:hover .nav-caret {
  transform: rotate(180deg);
}

.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 720px;
  width: min(1080px, 94vw); /* 固定宽度：列宽不再随内容长度玄学分配 */
  padding-top: 14px; /* visual gap below the navbar; padding keeps hover bridge intact */
  opacity: 0;
  visibility: hidden;
  transition: all 0.28s ease;
  z-index: 200;
}
.nav-item-has-dropdown.open .mega-menu,
.nav-item-has-dropdown:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.mega-menu-inner {
  display: grid;
  /* 3 个产品组列 + 预览卡 = 4 列（此前 3 列导致预览卡换行、B 列被挤压） */
  grid-template-columns: repeat(3, minmax(0, 1fr)) 260px;
  gap: 28px;
  align-items: start;
  /* 菜单再高也不能超过首屏可用高度，超出内部滚动——小屏不再"占满整屏" */
  max-height: calc(100vh - 110px);
  max-height: calc(100svh - 110px);
  overflow-y: auto;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
  padding: 28px 32px;
}
.mega-column h4 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--slate-light);
  margin-bottom: 14px;
}
.mega-column ul {
  display: grid;
  gap: 8px;
}
.mega-column li a {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 10px;
  font-size: 14px;
  line-height: 1.35;
  border-radius: 8px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink);
  transition: all 0.18s ease;
}
.mega-column li a::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--line);
  flex-shrink: 0;
  margin-top: 6px; /* 多行产品名时圆点对齐首行 */
  transition: background 0.18s ease;
}
.mega-column li a:hover {
  background: rgba(227, 168, 62, 0.05);
  color: var(--primary);
}
.mega-column li a:hover::before {
  background: var(--primary);
}

.mega-preview {
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
}
.mega-preview-img {
  width: 100%;
  aspect-ratio: 1.1;
  background: #f1f5f9;
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.mega-preview-img img {
  width: 80%; height: 80%; object-fit: contain;
}
.mega-preview-img .product-ph {
  width: 100%; height: 100%;
}
.mega-preview h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

/* 矮屏/窄屏紧凑模式：浮窗不再占满首屏（领导小屏笔记本场景） */
@media (max-height: 820px), (max-width: 1280px) {
  .mega-menu-inner {
    padding: 20px 24px;
    gap: 20px;
    grid-template-columns: repeat(3, minmax(0, 1fr)) 220px;
  }
  .mega-column h4 { margin-bottom: 8px; }
  .mega-column ul { gap: 4px; }
  .mega-column li a { font-size: 13px; padding: 4px 8px; }
  .mega-preview { padding: 16px; }
  .mega-preview-img { aspect-ratio: 1.4; margin-bottom: 10px; }
  .mega-preview h4 { font-size: 15px; }
  .mega-preview p { display: none; } /* 紧凑模式只留 图+标题+CTA */
}
.mega-preview p {
  font-size: 13.5px;
  color: var(--slate);
  line-height: 1.5;
  margin-bottom: 16px;
}
.mega-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  transition: all 0.2s ease;
}
.mega-cta svg { width: 15px; height: 15px; }
.mega-cta:hover {
  color: var(--primary-hover);
  gap: 10px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  font-weight: 600;
  font-size: 14.5px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary {
  background: var(--primary);
  color: #ffffff;
  box-shadow: var(--shadow-green);
}
.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(227, 168, 62, 0.35);
}
.btn-outline-white {
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(6px);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.35);
}
.btn-outline-white:hover {
  border-color: #ffffff;
  background: rgba(15, 23, 42, 0.6);
  transform: translateY(-1px);
}
.btn-block { width: 100%; }

/* ---------- Hero Section ---------- */
.hero {
  position: relative;
  /* 用 calc 钳住首屏高度（导航76+边框），防止内容把 hero 撑超一屏挤出投影 */
  min-height: calc(100vh - 81px);
  min-height: calc(100svh - 81px);
  display: flex;
  align-items: flex-start;
  padding: 88px 0 0; /* 内容整体再下移一点，投影露出更多 */
  background-size: cover;
  /* anchor to the bottom of the photo so the floor projection stays in frame */
  background-position: center bottom;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  /* 文案压暗集中在左/上，往右下(投影方向)快速淡出，保证投影足够鲜亮 */
  background: linear-gradient(112deg, rgba(10, 20, 36, 0.80) 0%, rgba(10, 20, 36, 0.48) 42%, rgba(10, 20, 36, 0.10) 72%, rgba(10, 20, 36, 0.02) 100%);
  z-index: 1;
}
.hero .container {
  position: relative;
  z-index: 2;
}
.hero-content {
  max-width: 1060px;
  /* CTA 绝对定位于内容块底部（卖点条正下方），内容块需成定位父级 */
  position: relative;
  padding-bottom: 104px; /* 为底部 CTA 预留空间，拉开卖点条与按钮间距 */
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: #f3f4f6;
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 500;
  margin-bottom: 26px;
}
.hero-tag::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
  flex: 0 0 auto;
}
.hero h1 {
  color: #ffffff;
  font-size: clamp(36px, 5vw, 60px);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 22px;
}
.hero h1 span {
  color: var(--primary);
}
/* Per-language hero tuning: Cyrillic glyphs run wider — shrink ru h1 so the
   two-part title stays on two lines; text-wrap:balance evens out every lang */
.hero h1 {
  text-wrap: balance;
}
html[lang="ru"] .hero h1 {
  font-size: clamp(30px, 4.2vw, 48px);
}
/* direct child only — overlay card descriptions have their own .overlay-txt p rule */
.hero-content > p {
  color: #dbe3ee;
  font-size: 18.5px;
  line-height: 1.65;
  max-width: 640px;
  margin-bottom: 40px; /* breathing room above the CTA buttons */
}
/* CTA 移到卖点条正下方（内容块底部横排） */
.hero-buttons {
  position: absolute;
  bottom: 0;
  left: 22px; /* 与卖点条卡片内边距对齐，消除左侧突出 */
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.hero-buttons .btn {
  padding: 15px 30px;
  font-size: 16px;
  text-align: center;
}

/* 卖点条：副标题下方横排 + 毛玻璃蒙版卡片（恢复遮罩保证可读性） */
.hero-points {
  display: flex;
  flex-wrap: nowrap;
  gap: 16px;
  margin-top: 26px;
  width: fit-content; /* 紧凑小方块，靠左不再铺满整行 */
  max-width: 620px; /* 长度上限，三项在内均分收缩 */
  /* 恢复为最初的白雾毛玻璃（同 2c5ee46 版 hero-overlay-card） */
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.16);
  padding: 12px 16px;
}
.hero-points .overlay-item { flex: 1 1 0; min-width: 0; }
.overlay-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  color: #ffffff;
}
.overlay-ic {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(227, 168, 62, 0.18);
  color: var(--primary);
  display: grid;
  place-items: center;
  flex: 0 0 auto;
}
.overlay-ic svg { width: 22px; height: 22px; }
.overlay-txt h3 {
  font-size: 15.5px;
  font-weight: 700;
  margin-bottom: 4px;
  color: #ffffff;
  text-shadow: 0 1px 6px rgba(10, 20, 36, 0.55);
}
.overlay-txt p {
  color: #e5e9f0;
  font-size: 13.5px;
  line-height: 1.5;
  text-shadow: 0 1px 5px rgba(10, 20, 36, 0.55);
}

/* ---------- Product Grid (Fidelity match) ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  /* 无 margin-bottom：区间距由 .section padding(48px) 统一负责，避免叠加膨胀 */
}
/* Few cards (e.g. 2 featured on home) stay centered at a sane width
   instead of stretching full-width or leaving a hard empty column */
.product-grid > .product-card,
.product-grid > .product-card--cta {
  max-width: 430px;
  width: 100%;
  justify-self: center;
}
.product-card {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-subtle);
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}
a.product-card { color: inherit; text-decoration: none; }
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: #cbd5e1;
}
.product-img-wrap {
  width: 100%;
  aspect-ratio: 1.1;
  background: #f8fafc;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--line);
}
.product-img-wrap img {
  width: 90%;
  height: 90%;
  object-fit: contain;
  transition: transform 0.3s ease;
}
.product-card:hover .product-img-wrap img {
  transform: scale(1.04);
}
/* gobo customization section (homepage) */
.split-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
@media (max-width: 860px) {
  .split-2col { grid-template-columns: 1fr; gap: 30px; }
}
.gobo-eyebrow {
  color: var(--primary);
  font-weight: 700;
  font-size: 15px;
  margin: 0 0 10px;
}
.gobo-steps {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 14px;
}
.gobo-steps li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: var(--slate);
  font-size: 15.5px;
  line-height: 1.55;
}
.gobo-check {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border-radius: 50%;
  background: rgba(227, 168, 62, .12);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.gobo-check svg { width: 13px; height: 13px; }

/* about page intro video */
.about-video {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  background: #000;
}
.about-video iframe,
.about-video video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* video cards (homepage forklift safety section) */
.product-img-wrap video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  background: #0f172a;
}
.product-info {
  padding: 24px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.product-info h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}
.product-info p {
  color: var(--slate);
  font-size: 13.5px;
  line-height: 1.5;
  margin: 0;
  flex: 1;
}
/* Hover: title turns brand green */
.product-card:hover .product-info h3 {
  color: var(--primary);
}
/* "View Product >" link — hidden by default, slides up on hover */
.product-more {
  display: inline-flex;
  align-items: center;
  align-self: center; /* center inside the flex-column .product-info */
  gap: 6px;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  opacity: 0;
  transform: translateY(6px);
  transition: all 0.25s ease;
  pointer-events: none;
}
.product-more svg {
  width: 15px; height: 15px;
  transition: transform 0.2s ease;
}
.product-card:hover .product-more {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.product-card:hover .product-more svg {
  transform: translateX(3px);
}
/* Touch devices have no hover — always show the "View Product" affordance */
@media (hover: none) {
  .product-more { opacity: 1; transform: none; pointer-events: auto; }
}

/* Custom Spec CTA Card (Green Block) — sits inside the product grid as an equal cell */
.product-card--cta {
  background: linear-gradient(145deg, #e3a83e 0%, #c98f2a 100%);
  border: none;
  color: #ffffff;
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 36px rgba(227, 168, 62, 0.25);
}
.cta-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.18);
  color: #ffffff;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}
.cta-card-icon svg { width: 22px; height: 22px; }
.cta-card-header {
  margin-bottom: 16px;
}
.cta-card-header h3 {
  font-size: 22px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}
.cta-card-header p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 14.5px;
  line-height: 1.5;
}
.cta-card-contact {
  margin-top: auto; /* pin contact + button to card bottom, matching reference */
  padding-top: 20px;
  margin-bottom: 18px;
}
.cta-card-link {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #ffffff;
  font-size: 13.5px;
  font-weight: 500;
  margin-bottom: 10px;
}
.cta-card-link svg {
  width: 16px;
  height: 16px;
}
.cta-card-button {
  width: 100%;
  background: #ffffff;
  color: #c98f2a;
  padding: 12px;
  border-radius: var(--radius-md);
  text-align: center;
  font-weight: 700;
  font-size: 14.5px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
}
.cta-card-button:hover {
  background: #f3f4f6;
  transform: translateY(-1px);
}
.cta-card-button svg { width: 15px; height: 15px; flex: 0 0 auto; }

/* ---------- Consultation Quote Section ---------- */
.consult-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 56px;
  align-items: start;
}
.consult-info h2 {
  font-size: 32px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 16px;
  line-height: 1.2;
}
.consult-info p {
  color: #94a3b8;
  font-size: 16px;
  margin-bottom: 40px;
}
.bullet-list {
  display: grid;
  gap: 20px;
  margin-bottom: 40px;
}
.bullet-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.bullet-ic {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: rgba(227, 168, 62, 0.15);
  color: var(--primary);
  display: grid;
  place-items: center;
  flex: 0 0 auto;
}
.bullet-ic svg { width: 14px; height: 14px; }
.bullet-txt h4 {
  font-size: 15.5px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
}
.bullet-txt p {
  color: #94a3b8;
  font-size: 13.5px;
  line-height: 1.4;
  margin: 0;
}
.consult-contact-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  color: #64748b;
  letter-spacing: 1px;
  margin-bottom: 16px;
  border-top: 1px solid #1e293b;
  padding-top: 24px;
}
.consult-contacts {
  display: grid;
  gap: 12px;
}
.consult-contact-row {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #cbd5e1;
  font-size: 14.5px;
}
.consult-contact-row svg {
  width: 16px;
  height: 16px;
  color: var(--primary);
}
.section--dark .consult-info p,
.section--dark .bullet-txt p { color: var(--on-dark-muted); }
.section--dark .consult-contact-row { color: #e6edf5; }
.section--dark .consult-contact-title { color: #b6c6d9; border-top-color: rgba(255, 255, 255, 0.18); }

/* Light-section variant — the contact page reuses .consult-grid on a white background,
   so the dark-section colors above must be flipped back to readable values. */
.section:not(.section--dark) .consult-info h2 { color: var(--ink); }
.section:not(.section--dark) .consult-info p { color: var(--slate); }
.section:not(.section--dark) .bullet-txt h4 { color: var(--ink); }
.section:not(.section--dark) .bullet-txt p { color: var(--slate); }
.section:not(.section--dark) .consult-contact-title { color: var(--slate-light); border-top-color: var(--line); }
.section:not(.section--dark) .consult-contact-row { color: var(--slate); }

/* Quote Form Card (White Card) */
.quote-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
  color: var(--ink);
}
.quote-card h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 8px;
}
.quote-card p {
  color: var(--slate);
  font-size: 14px;
  margin-bottom: 24px;
}
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 13.5px;
  color: #374151;
  margin-bottom: 6px;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 14.5px;
  background: #f8fafc;
  color: var(--ink);
  transition: all 0.2s ease;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(227, 168, 62, 0.12);
}
.form-group textarea {
  resize: vertical;
  min-height: 100px;
}
.quote-card .btn-primary {
  width: 100%;
  padding: 13px;
  border-radius: var(--radius-md);
  font-size: 15px;
}

/* ---------- Custom select (replaces native <select>) ---------- */
select.cs-native { display: none; }
.cs { position: relative; }
.cs-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 14px;
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 14.5px;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.2s ease;
}
.cs-trigger:hover { border-color: var(--primary); }
.cs.open .cs-trigger {
  border-color: var(--primary);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(227, 168, 62, 0.12);
}
.cs-caret { font-size: 10px; color: var(--slate-light); transition: transform 0.2s ease; }
.cs.open .cs-caret { transform: rotate(180deg); }
.cs-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  z-index: 60;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
}
.cs.open .cs-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.cs-option {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  background: none;
  border: none;
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.15s ease;
}
.cs-option:hover { background: #fdf7e8; color: var(--primary); }
.cs-option.active { background: #f9ecd2; color: var(--primary); font-weight: 600; }
.form-policy {
  font-size: 12px;
  color: var(--slate-light);
  text-align: center;
  margin-top: 12px;
}

/* ---------- Stat Section & Values ---------- */
.stats { background: var(--bg-light); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 40px 24px; text-align: center; border-right: 1px solid var(--line); }
.stat:last-child { border-right: none; }
.stat .num { font-size: clamp(32px, 4vw, 44px); font-weight: 800; color: var(--ink); line-height: 1; }
.stat .num .plus { color: var(--primary); }
.stat .label { margin-top: 8px; color: var(--slate); font-size: 14px; font-weight: 500; }

/* ---------- Floating WhatsApp Button ---------- */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  background: #25d366;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.3);
  z-index: 999;
  transition: all 0.2s ease;
}
.whatsapp-float:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
}
.whatsapp-float svg {
  width: 24px;
  height: 24px;
}

.site-footer {
  background: #ffffff;
  color: var(--slate);
  padding: 48px 0 28px;
  font-size: 14px;
  border-top: 1px solid var(--line); /* separate footer from page content on all pages */
}
.footer-grid-4 {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-col-brand .brand {
  margin-bottom: 16px;
}
.footer-col-brand p {
  line-height: 1.6;
  color: var(--slate);
  font-size: 13.5px;
  max-width: 320px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 18px;
  text-transform: capitalize;
}
.footer-col ul {
  display: grid;
  gap: 10px;
}
.footer-col ul a {
  color: var(--slate);
  transition: color 0.18s;
  display: inline-block;
}
.footer-col ul a:hover {
  color: var(--primary);
}
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--slate);
  line-height: 1.4;
}
.footer-contact-item svg {
  width: 15px;
  height: 15px;
  color: var(--slate-light);
  flex: 0 0 auto;
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--slate-light);
  font-size: 13px;
}
.footer-bottom-links {
  display: flex;
  gap: 20px;
}
.footer-bottom-links a:hover {
  color: var(--primary);
}

/* ---------- Language Switcher (custom dropdown) ---------- */
.lang-dropdown {
  position: relative;
  display: inline-block;
}
.lang-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: #ffffff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 14px;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.lang-trigger:hover { border-color: var(--primary); }
.lang-trigger:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(227, 168, 62, 0.15);
}
.lang-arrow {
  width: 12px; height: 12px;
  transition: transform 0.25s ease;
}
.lang-dropdown.open .lang-arrow {
  transform: rotate(180deg);
}

/* Dropdown panel */
.lang-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 160px;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1), 0 2px 8px rgba(0, 0, 0, 0.06);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(0.97);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1000;
  overflow: hidden;
  padding: 5px 0;
}
.lang-dropdown.open .lang-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
.lang-option {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 16px;
  font-family: inherit;
  font-size: 13.5px;
  color: var(--ink-soft);
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease;
}
.lang-option:hover {
  background: rgba(227, 168, 62, 0.06);
  color: var(--primary);
}
.lang-option.active {
  color: var(--primary);
  font-weight: 600;
}
.lang-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px; height: 16px;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity 0.15s ease;
}
.lang-option.active .lang-check {
  opacity: 1;
}

/* ---------- Product placeholder (no image yet) ---------- */
.product-ph {
  background: linear-gradient(145deg, #0a1424 0%, #0e1c31 100%);
  color: #ffffff;
}
.product-ph span {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -1px;
}

/* ---------- Form success message ---------- */
.form-success {
  display: none;
  margin-top: 14px;
  padding: 12px 14px;
  background: rgba(227, 168, 62, 0.1);
  border: 1px solid rgba(227, 168, 62, 0.3);
  color: #c98f2a;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  text-align: center;
}
.form-success.show { display: block; }

/* ---------- Inner page hero (About / Contact) ---------- */
.page-hero {
  background: linear-gradient(135deg, var(--dark-navy) 0%, var(--dark-navy-alt) 100%);
  color: #ffffff;
  padding: 88px 0 56px;
}
.page-hero h1 {
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}
.page-hero p {
  color: var(--on-dark-muted);
  font-size: 16px;
  max-width: 680px;
  margin: 0;
}
/* products page: 4 feature bullets under the hero title (2-col on desktop) */
.page-hero-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 36px;
  max-width: 900px;
}
.page-hero-points li {
  position: relative;
  padding-left: 20px;
  color: var(--on-dark-muted);
  font-size: 15px;
  line-height: 1.55;
}
.page-hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
}
@media (max-width: 768px) {
  .page-hero-points { grid-template-columns: 1fr; }
}

/* ---------- Story (About) ---------- */
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
.story-grid img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
}

/* ---------- About values ---------- */
.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 8px;
}
.value-card {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-subtle);
  transition: all 0.25s ease;
}
.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: #cbd5e1;
}
.value-ic {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(227, 168, 62, 0.12);
  color: var(--primary);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}
.value-ic svg { width: 24px; height: 24px; }
.value-card h3 { font-size: 18px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.value-card p { color: var(--slate); font-size: 14px; line-height: 1.55; margin: 0; }

/* ---------- CTA banner (light bar, like clearfilterpro "Schedule a Meeting") ---------- */
.cta-banner {
  background: var(--bg-light);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-subtle);
}
.cta-banner h2 { color: var(--ink); font-size: 22px; font-weight: 800; margin-bottom: 6px; }
.cta-banner p { color: var(--slate); font-size: 14.5px; margin: 0; max-width: 620px; }
.cta-banner-actions { display: flex; gap: 12px; flex-wrap: wrap; flex: 0 0 auto; }

/* ---------- Legal pages (privacy / terms) ---------- */
.legal { max-width: 780px; margin: 0 auto; padding: 56px 24px 80px; }
.legal h1 { font-size: 32px; font-weight: 800; margin-bottom: 6px; }
.legal .updated { color: var(--slate-light); font-size: 13px; margin-bottom: 32px; }
.legal h2 { font-size: 19px; font-weight: 700; margin: 32px 0 10px; color: var(--ink); }
.legal p, .legal li { font-size: 15px; line-height: 1.75; color: var(--slate); }
.legal ul { padding-left: 20px; list-style: disc; display: grid; gap: 6px; margin: 10px 0; }
.legal a { color: var(--primary); }
.legal-center { text-align: center; padding-top: 96px; padding-bottom: 96px; }
.legal-center .error-code { font-size: 88px; font-weight: 800; line-height: 1; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 20px; }
.legal-center h1 { margin-bottom: 12px; }
.legal-center p { max-width: 460px; margin: 0 auto 28px; }

/* ---------- Mobile menu drawer ---------- */
.mobile-menu { display: none; background: #ffffff; border-bottom: 1px solid var(--line); box-shadow: 0 14px 30px rgba(0, 0, 0, 0.08); padding: 10px 14px 16px; }
.mobile-menu a {
  display: block;
  padding: 13px 14px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
  border-radius: 10px;
}
.mobile-menu a:hover, .mobile-menu a.active { color: var(--primary); background: #fdf7e8; }

/* ---------- Blog ---------- */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.blog-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; display: flex; flex-direction: column; transition: transform .25s ease, box-shadow .25s ease; }
.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.blog-thumb { display: block; aspect-ratio: 3 / 2; overflow: hidden; background: #f8fafc; }
.blog-thumb img { width: 100%; height: 100%; object-fit: contain; transition: transform .35s ease; } /* contain: 图片完整显示，不裁切 */
.blog-card:hover .blog-thumb img { transform: scale(1.05); }
.blog-ph { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #e9f7f1, #d6efe5); color: var(--primary); font-size: 42px; font-weight: 800; }
.blog-body { padding: 22px 22px 26px; display: flex; flex-direction: column; flex: 1; }
.blog-meta { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; font-size: 12.5px; color: var(--slate); }
.blog-cat { background: rgba(227, 168, 62, 0.12); color: var(--primary); font-weight: 600; padding: 3px 10px; border-radius: 999px; }
.blog-body h3 { font-size: 18px; font-weight: 700; line-height: 1.35; margin-bottom: 10px; color: var(--ink); }
.blog-body h3 a { color: inherit; text-decoration: none; }
.blog-body h3 a:hover { color: var(--primary); }
.blog-body p { color: var(--slate); font-size: 14px; line-height: 1.6; margin-bottom: 16px; flex: 1; }
.blog-more { font-weight: 600; color: var(--primary); text-decoration: none; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; transition: gap .2s ease; }
.blog-more:hover { gap: 10px; }
.blog-empty { text-align: center; color: var(--slate); padding: 40px 0; }
.load-error { grid-column: 1 / -1; text-align: center; color: #b91c1c; background: #fef2f2; border: 1px solid #fecaca; border-radius: var(--radius-md); padding: 20px; }

/* Blog detail */
.blog-detail { max-width: 760px; margin: 0 auto; }
.blog-back { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-weight: 600; text-decoration: none; margin-bottom: 22px; }
.blog-back:hover { text-decoration: underline; }
.blog-detail-meta { display: flex; gap: 12px; align-items: center; margin-bottom: 14px; }
.blog-detail h1 { font-size: 32px; font-weight: 800; line-height: 1.25; color: var(--ink); margin-bottom: 18px; }
.blog-detail-img { width: 100%; border-radius: var(--radius-lg); margin-bottom: 26px; overflow: hidden; }
.blog-detail-img img { width: 100%; display: block; }
.blog-detail-body { font-size: 16px; line-height: 1.8; color: #334155; }
.blog-detail-body p { margin-bottom: 18px; }
.blog-detail-body img { max-width: 100%; border-radius: var(--radius-md); margin: 12px 0; display: block; cursor: zoom-in; }
.blog-detail-cta { margin-top: 28px; }

/* ---------- Product Detail ---------- */
.section-cta-center { text-align: center; margin-top: 34px; }
.btn-outline { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; border-radius: 999px; border: 1.5px solid var(--line); color: var(--ink); font-weight: 600; background: #fff; transition: all .2s ease; }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-outline svg { width: 18px; height: 18px; }
.product-detail-section { padding-top: 48px; padding-bottom: 48px; }
.product-detail { max-width: 980px; margin: 0 auto; }
.pd-breadcrumb { font-size: 14px; color: var(--slate); margin-bottom: 26px; display: flex; gap: 8px; flex-wrap: wrap; }
.pd-breadcrumb a:hover { color: var(--primary); }
.pd-hero { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 44px; align-items: center; margin-bottom: 48px; }
.pd-img { width: 100%; aspect-ratio: 4/3; border-radius: var(--radius-lg); background: linear-gradient(135deg,#f1f5f9,#e2e8f0); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.pd-img img { width: 100%; height: 100%; object-fit: contain; cursor: zoom-in; } /* contain: 完整显示产品，不截头掐尾 */
/* 详情页图集左右翻页 */
.pd-gal { position: relative; }
.pd-gal-btn { position: absolute; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; border-radius: 50%; border: none; background: rgba(255, 255, 255, .9); box-shadow: 0 2px 10px rgba(15, 23, 42, .18); cursor: pointer; display: grid; place-items: center; color: var(--primary); transition: background .2s ease, transform .2s ease; z-index: 2; }
.pd-gal-btn:hover { background: #fff; transform: translateY(-50%) scale(1.08); }
.pd-gal-btn svg { width: 20px; height: 20px; }
.pd-gal-btn.prev { left: 12px; }
.pd-gal-btn.prev svg { transform: rotate(180deg); }
.pd-gal-btn.next { right: 12px; }
.pd-gal-idx { position: absolute; bottom: 10px; right: 12px; background: rgba(15, 23, 42, .55); color: #fff; font-size: 12px; padding: 2px 10px; border-radius: 999px; z-index: 2; }
.pd-structure { margin-bottom: 18px; }
.pd-structure img { max-width: 100%; display: block; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; cursor: zoom-in; }
/* 图片放大 Lightbox（img[data-zoom] 通用） */
.lb-mask { position: fixed; inset: 0; z-index: 1000; background: rgba(10, 20, 36, 0.88); display: flex; align-items: center; justify-content: center; padding: 4vmin; cursor: zoom-out; }
.lb-mask img { max-width: 94vw; max-height: 92vh; object-fit: contain; background: #fff; border-radius: 8px; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4); }
.lb-close { position: absolute; top: 18px; right: 24px; color: #fff; font-size: 34px; line-height: 1; opacity: 0.8; cursor: pointer; }
.lb-close:hover { opacity: 1; }
.pd-img.product-ph span { font-size: 84px; font-weight: 800; color: var(--primary); }
.pd-tag { display: inline-block; font-size: 13px; font-weight: 700; color: var(--primary); background: rgba(227, 168, 62,0.1); padding: 5px 12px; border-radius: 999px; margin-bottom: 14px; }
.pd-hero-info h1 { font-size: 36px; font-weight: 800; color: var(--ink); line-height: 1.15; margin-bottom: 12px; }
.pd-tagline { font-size: 17px; font-weight: 600; color: var(--primary); margin-bottom: 14px; }
.pd-desc { font-size: 16px; line-height: 1.7; color: var(--slate); margin-bottom: 24px; }
.pd-hero-info .btn { display: inline-flex; }
.pd-block { margin-bottom: 40px; }
.pd-block h2 { font-size: 22px; font-weight: 700; color: var(--ink); margin-bottom: 18px; padding-bottom: 10px; border-bottom: 2px solid var(--line); }
.feature-list { list-style: none; display: grid; gap: 14px; }
.feature-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 16px; color: #334155; line-height: 1.6; }
.feature-list svg { flex: none; width: 22px; height: 22px; color: var(--primary); margin-top: 2px; }
.spec-table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md); overflow: hidden; }
.spec-table th, .spec-table td { text-align: left; padding: 14px 18px; font-size: 15px; border-bottom: 1px solid var(--line); }
.spec-table th { width: 42%; color: var(--slate); font-weight: 600; background: #f8fafc; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: none; }
.spec-table td { color: var(--ink); font-weight: 600; }
.app-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.app-tag { font-size: 14px; padding: 8px 16px; border-radius: 999px; background: #f1f5f9; color: var(--ink); border: 1px solid var(--line); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.pd-empty { text-align: center; padding: 60px 0; }
.pd-empty h2 { font-size: 24px; color: var(--ink); margin-bottom: 20px; }

/* ---------- Media Queries ---------- */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .consult-grid { grid-template-columns: 1fr; gap: 40px; }
  /* 平板：CTA 回文档流，避免小屏绝对定位溢出 */
  .hero-buttons { position: static; margin-top: 28px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat { border-bottom: 1px solid var(--line); }
  .stat:nth-child(3), .stat:nth-child(4) { border-bottom: none; }
  .footer-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .top-bar-left { justify-content: center; width: 100%; }
  .nav-links, .nav-actions .btn { display: none; }
  .nav-toggle { display: flex; }
  .nav-actions .lang-dropdown { display: none; }
  .nav-item-has-dropdown .mega-menu { display: none !important; }

  /* Language switcher inside mobile menu = inline accordion */
  .mobile-menu .lang-dropdown-mobile {
    width: 100%;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--line);
  }
  .mobile-menu .lang-trigger {
    width: 100%;
    justify-content: space-between;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 12px 14px;
    font-size: 15px;
  }
  .mobile-menu .lang-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-radius: 0;
    min-width: 0;
    max-height: 0;
    overflow: hidden;
    padding: 0;
    transition: max-height 0.25s ease;
  }
  .mobile-menu .lang-dropdown.open .lang-menu {
    max-height: 340px;
    padding: 6px 0 2px;
  }
  .mobile-menu .lang-option { padding: 11px 14px; border-radius: 8px; }
  .mobile-menu .lang-option:hover { background: #fdf7e8; }
  .mobile-menu .lang-option.active { background: #f9ecd2; }
  .product-grid { grid-template-columns: 1fr; }
  .hero { padding-bottom: 60px; min-height: auto; }
  .hero-points { gap: 14px 18px; margin-top: 32px; flex-wrap: wrap; } /* 小屏允许换行防溢出 */
  .footer-grid-4 { grid-template-columns: 1fr; gap: 32px; }
  .story-grid { grid-template-columns: 1fr; }
  .about-values { grid-template-columns: 1fr; }
  .cta-banner { flex-direction: column; align-items: flex-start; }
  .mobile-menu.open { display: block; }
  .blog-grid { grid-template-columns: 1fr; }
  .pd-hero { grid-template-columns: 1fr; gap: 24px; }
  .pd-hero-info h1 { font-size: 28px; }
  .related-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .blog-detail h1 { font-size: 26px; }
  .blog-detail-body { font-size: 15px; }
}

/* ---------- Certifications (about page) ----------
   Flat grid like the product grid: certificate images on top (4 per row),
   selling-point checklist in one horizontal row below */
.cert-grid { display: grid; grid-template-columns: 1fr; gap: 40px; }
.cert-imgs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cert-imgs img { width: 100%; border: 1px solid var(--line); border-radius: var(--radius-md); display: block; background: #fff; }
.cert-points { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cert-point { display: flex; gap: 10px; align-items: center; font-size: 15px; font-weight: 600; color: var(--ink); }
.cert-point svg { width: 18px; height: 18px; color: var(--primary); flex: 0 0 auto; }
@media (max-width: 1024px) {
  .cert-imgs { grid-template-columns: repeat(2, 1fr); }
  .cert-points { grid-template-columns: repeat(2, 1fr); gap: 14px; }
}
@media (max-width: 560px) { .cert-points { grid-template-columns: 1fr; } }

/* ---------- Exhibition Site (about page) ----------
   3-column photo wall, 4:3 cover crop, click to zoom (data-zoom lightbox) */
.expo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.expo-empty { grid-column: 1 / -1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; padding: 56px 24px; border: 1.5px dashed var(--line); border-radius: var(--radius-md); color: var(--slate); font-size: 15px; background: #fff; }
.expo-empty svg { width: 34px; height: 34px; opacity: .55; }
.expo-grid img { width: 100%; aspect-ratio: 4 / 3; object-fit: contain; border: 1px solid var(--line); border-radius: var(--radius-md); display: block; background: #f8fafc; cursor: zoom-in; } /* contain: 完整显示不裁人 */
@media (max-width: 1024px) { .expo-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .expo-grid { grid-template-columns: 1fr; } }