/* ==========================================================================
   Sisdin Coatings — front-end design system
   Palette: brand deep blue (logo blue) + white / warm white / warm grey
   ========================================================================== */

:root {
  --ink: #10205e;          /* 深蓝：页脚 / CTA 底色 */
  --ink-soft: #172b78;
  --accent: #172b78;       /* 品牌深蓝：按钮 / 链接 / 重点标题 */
  --accent-dark: #10205e;
  --accent-soft: #eef1f9;
  --paper: #ffffff;
  --paper-alt: #f8f6f1;    /* 暖白：区块区分 */
  --line: #e7e3da;
  --line-soft: #d8dff0;
  --text: #263247;
  --muted: #64748b;
  --radius: 8px;
  --radius-lg: 14px;
  --shadow: 0 6px 18px rgba(23, 43, 120, 0.06);
  /* 内容容器：视口≤1500px 时保持 1200 上限居中；更宽屏按视口 80% 铺满（两侧各留 10% 边距） */
  --max: max(1200px, 80vw);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial,
    "PingFang SC", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body.site-body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--paper);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-dark);
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  line-height: 1.25;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 1em;
}

ul,
ol {
  margin: 0 0 1em;
  padding-left: 1.2em;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

.site-main {
  display: block;
}

/* --------------------------------------------------------------- header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(180%) blur(8px);
  transition: box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 6px 18px rgba(23, 43, 120, 0.07);
}

.header-inner {
  display: flex;
  align-items: center;
  /* 导航紧跟 Logo 左锚定（而非 space-between 拉伸），中英文下导航项起点 x 才能一致 */
  justify-content: flex-start;
  gap: 32px;
  min-height: 68px;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
}

.brand-logo {
  display: block;
  height: 40px;
  width: auto;
}

.brand-stack {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-sub {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.brand:hover {
  color: var(--ink);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  letter-spacing: 0.04em;
}

.brand-name {
  font-size: 17px;
  letter-spacing: 0.01em;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  /* 显式居中：不依赖 align-items 默认的 stretch 撑开横条宽度，
     否则 WebKit（微信内置浏览器等）下无显式宽度的 span 会塌成 0 宽而不可见 */
  align-items: center;
  gap: 5px;
  width: 42px;
  height: 38px;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  /* 固定宽度（= 内容盒宽 42 - 2×1 边框 - 2×9 内边距 = 22px），保证跨引擎可见 */
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  /* 桌面占满剩余宽度但导航项靠左；nowrap 避免中英折行数不一致导致页头高度跳动 */
  flex: 1 1 auto;
  min-width: 0;
  flex-wrap: nowrap;
}

.nav-link {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--accent);
  background: var(--accent-soft);
}

.nav-item {
  position: relative;
}

/* 导航槽位固定宽度：取两种语言里较宽的英文实测值（+2px 余量），
   使中英文切换时每个菜单项的水平位置完全一致。
   序号与 header.html 中 .site-nav 的 7 个顶层项一一对应，增删导航项时需同步调整 */
.site-nav > :nth-child(1) {
  min-width: 66px;
}

.site-nav > :nth-child(2) {
  min-width: 86px;
}

.site-nav > :nth-child(3) {
  min-width: 110px;
}

.site-nav > :nth-child(4) {
  min-width: 136px;
}

.site-nav > :nth-child(5) {
  min-width: 170px;
}

.site-nav > :nth-child(6) {
  min-width: 88px;
}

.site-nav > :nth-child(7) {
  /* 中文“联系我们”比英文 “Contact” 宽，取较宽者 */
  min-width: 86px;
}

/* 槽位定宽后文字居中，避免短文案贴在槽位左侧、右侧留白 */
.site-nav > .nav-link,
.site-nav > .nav-item > .nav-link {
  display: block;
  text-align: center;
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 230px;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: none;
}

/* 下拉仅在桌面端跟随悬停展开，移动端由 nav.js 的 is-open 控制 */
@media (min-width: 769px) {
  .has-dropdown:hover .nav-dropdown,
  .has-dropdown:focus-within .nav-dropdown {
    display: block;
  }
}

.nav-dropdown-link {
  display: block;
  padding: 9px 12px;
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
}

.nav-dropdown-link:hover {
  background: var(--paper-alt);
  color: var(--accent);
}

.nav-dropdown-all {
  font-weight: 600;
  color: var(--accent);
}

.nav-lang {
  /* 把语言切换与询价按钮推到行尾：组靠右对齐后，两种语言下的位置不随文字长度变化 */
  margin-left: auto;
  /* 固定盒宽（取较宽的“中文”）：“EN” 不会把按钮压窄，避免它的位置左右偏移 */
  min-width: 52px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  text-align: center;
}

.nav-lang:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* 顶栏语言按钮（汉堡旁）：仅折叠态显示，桌面隐藏以免与面板内 .nav-lang 重复 */
.nav-lang-bar {
  display: none;
}

/* 子菜单展开按钮：桌面隐藏（hover 即可），移动端显示 */
.nav-caret {
  display: none;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
}

.nav-caret svg {
  width: 12px;
  height: 12px;
  transition: transform 0.18s ease;
}

.nav-item.is-open .nav-caret svg {
  transform: rotate(180deg);
}

/* --------------------------------------------------------------- buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-dark);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border-color: var(--accent);
  color: var(--accent);
}

.btn-outline:hover {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
}

.btn-sm {
  padding: 8px 14px;
  font-size: 14px;
}

.btn-block {
  display: flex;
  width: 100%;
  margin-top: 16px;
}

.nav-cta {
  margin-left: 8px;
  /* 固定最小宽度（取较长文案 “Request a Quote” 的宽度）：
     避免中文“获取报价”把按钮缩短后，左侧的语言切换按钮跟着左右偏移 */
  min-width: 140px;
}

/* --------------------------------------------------------------- hero */
/* 首页首屏：整幅通栏 banner 图（宽度跟随页面）+ 文字直接叠在图上。
   不做背景色/压白遮罩处理：banner 左侧为明亮天空，深色文字直接叠放即可满足对比度 */
.hero {
  position: relative;
  overflow: hidden;
  background: transparent;
  color: var(--text);
}

/* 背景图层：脱离文档流，铺满整个 section 宽度 */
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
  margin: 0;
}

.hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  /* 通栏 banner 原图为 ~2.9:1（如 banner_header2.webp 2135×737）；
     Y 取 100%：容器比图更扁而必须纵向裁切时，只裁顶部天空，
     保住图底部的漆桶/色板/地面（此前取 38% 会在宽屏把底部裁掉 ~120px）；
     X 取 50% 让左右两侧等量裁切 */
  object-fit: cover;
  object-position: 50% 100%;
}

/* 左侧白色渐变遮罩：加在全幅 .hero-media 上（从视口左缘起算，无接缝），
   为左侧叠放文字托出对比度；文字层 .hero-banner(z-index:1) 自然浮于其上 */
.hero-media::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.94) 0%,
    rgba(255, 255, 255, 0.86) 23%,
    rgba(255, 255, 255, 0.58) 40%,
    rgba(255, 255, 255, 0) 65%
  );
  pointer-events: none;
}

/* 文字层：与页头、其他区块共用 .container 左边线；顶部对齐（以首页文字左上角为全站基准：
   top = padding-top 76，各页切换时视角固定；≤768 另有流式规则） */
.hero-banner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  min-height: clamp(420px, 33vw, 520px);
  padding-top: 76px;
  padding-bottom: 84px;
}

.hero-copy {
  position: relative;
  max-width: 620px;
  min-width: 0;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow::before {
  content: "";
  flex: none;
  width: 26px;
  height: 2px;
  background: var(--accent);
}

.hero-title {
  max-width: 15em;
  margin: 0 0 18px;
  font-size: clamp(28px, 4.2vw, 46px);
  line-height: 1.16;
  color: var(--ink-soft);
}

.hero-sub {
  max-width: 560px;
  margin: 0 0 26px;
  font-size: 16.5px;
  color: var(--text);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.hero-note {
  max-width: 560px;
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

/* 信任标签：纯文字，不带未核实的性能数字与认证徐章 */
.trust-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.trust-chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
}

.icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
}

.icon-circle svg {
  display: block;
  width: 18px;
  height: 18px;
}

/* --------------------------------------------------------------- sections */

.section {
  padding: 72px 0;
}

.section-tight {
  padding: 44px 0;
}

.section-alt {
  background: var(--paper-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  max-width: 720px;
  margin: 0 0 32px;
}

.section-title {
  font-size: clamp(22px, 2.6vw, 30px);
  margin-bottom: 8px;
}

.section-sub {
  margin: 0;
  color: var(--muted);
}

.section-text {
  color: var(--text);
}

.section-actions {
  margin-top: 30px;
}

.page-head {
  padding: 52px 0 30px;
  background: var(--paper-alt);
  border-bottom: 1px solid var(--line);
}

.page-title {
  font-size: clamp(26px, 3.4vw, 38px);
  margin-bottom: 10px;
}

.page-sub {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

/* 区块标题左 + 说明右（首页核心产品区） */
.section-head-split {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 32px;
  align-items: end;
  max-width: none;
  margin-bottom: 36px;
}

.section-head-split .section-sub {
  padding-bottom: 6px;
}

/* --------------------------------------------------------------- homepage blocks */

/* Why SISDIN：四项横向排列 */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 26px;
}

.feature-item {
  padding-left: 22px;
  border-left: 1px solid var(--line);
}

.feature-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 16px;
  color: var(--ink-soft);
}

.feature-text {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.why-block {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 2.15fr);
  gap: 44px;
  align-items: start;
}

.why-copy {
  min-width: 0;
}

/* ------------------------------------------------- factory section (首页工厂区块) */
/* 排版对应设计稿：左图 + 右内容（文字块 | 竖线 | 能力列表） */
.factory-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 40px;
  align-items: stretch;
}

.factory-media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.factory-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 右侧内容：文字块与能力列表左右并列，中间竖线分隔 */
.factory-content {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.factory-copy {
  min-width: 0;
}

.factory-copy .section-title {
  font-size: clamp(21px, 1.7vw, 25px);
  margin-bottom: 12px;
}

.factory-copy .section-sub {
  margin-bottom: 24px;
}

/* 工厂能力：图标 + 文本行 */
.capability-list {
  display: grid;
  gap: 20px;
  margin: 0;
  padding: 0 0 0 14px;
  list-style: none;
  border-left: 1px solid var(--line);
}

.capability-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.3;
}

.capability-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  flex: none;
}

.capability-icon svg {
  display: block;
  width: 18px;
  height: 18px;
}

/* 产品卡上的圆形图标徒章 */
.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: -22px 0 14px;
  border: 4px solid #fff;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow);
}

.card-icon svg {
  display: block;
  width: 20px;
  height: 20px;
}

/* --------------------------------------------------------------- breadcrumb */

.breadcrumb {
  background: #fff;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.breadcrumb .container {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.breadcrumb-link {
  color: var(--muted);
}

.breadcrumb-link:hover {
  color: var(--accent);
}

.breadcrumb-sep {
  color: #b9c0cf;
}

.breadcrumb-current {
  color: var(--text);
  font-weight: 600;
}

/* --------------------------------------------------------------- cards */

.card-grid {
  display: grid;
  gap: 24px;
}

.card-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.card-link {
  color: inherit;
}

.card-link:hover {
  transform: translateY(-2px);
  border-color: var(--line-soft);
  box-shadow: var(--shadow);
  color: inherit;
}

.card-media {
  display: block; /* 兼容 <a class="card-media"> 图片链接形态 */
  position: relative;
  /* 分类封面图为横版实拍，3/2 比 4/3 保留更多画面，主体不易被裁掉 */
  aspect-ratio: 3 / 2;
  background: var(--paper-alt);
  overflow: hidden;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.card-link:hover .card-media img,
a.card-media:hover img {
  /* 可点击产品图的统一 hover 反馈（分类页图片直达详情页） */
  transform: scale(1.04);
}

.card-body {
  padding: 20px 22px 24px;
}

.card-title {
  font-size: 18px;
  margin-bottom: 8px;
}

.card-text {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 14.5px;
}

.card-tag {
  display: inline-block;
  margin-bottom: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 600;
}

.card-date {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 12.5px;
}

.card-more {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--accent);
}

.card-more::after {
  content: " \2192";
}

/* ------------------------------------------------- Products overview */

/* Products Hero 直接复用首页 .hero / .hero-media / .hero-banner / .hero-copy 等类，
   通栏同比例图 + 同款左侧白色渐变遮罩，保证与首页 banner 完全一致 */

.products-hero-crumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
  font-size: 13px;
}

/* Quick Access 横向卡：缩略图 + 标题 + 箭头 */
.browse-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.browse-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.browse-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-soft);
  box-shadow: var(--shadow);
  color: inherit;
}

.browse-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.browse-thumb {
  flex: none;
  width: 96px;
  height: 72px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper-alt);
}

.browse-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.browse-body {
  flex: 1 1 auto;
  min-width: 0;
  font-weight: 600;
  color: var(--ink-soft);
  line-height: 1.35;
}

.browse-arrow {
  flex: none;
  display: inline-flex;
  width: 22px;
  height: 22px;
  color: var(--accent);
}

.browse-arrow svg {
  width: 100%;
  height: 100%;
}

@media (max-width: 1024px) {
  .browse-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .browse-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ------------------------------------------------- category rich page */
/* 概述区：左文案 + 右 2×2 特性，复用 .feature-grid/.feature-item/.icon-circle */
.cat-overview {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 44px;
  align-items: start;
}

.cat-overview-copy {
  min-width: 0;
}

.feature-grid-2x2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

/* 产品卡型号/包装小字行 */
.card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 13px;
}

.card-meta em {
  font-style: normal;
  color: var(--accent);
  font-weight: 600;
}

.card-meta-dot {
  color: var(--line);
}

/* “待上线”：不可点、去箭头 */
.card-more.is-disabled {
  color: var(--muted);
  font-weight: 600;
  cursor: default;
}

.card-more.is-disabled::after {
  content: none;
}

@media (max-width: 1024px) {
  .feature-grid-2x2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .cat-overview {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .feature-grid-2x2 {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* 特性条：整宽四列图标（layout=strip） */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px 32px;
}

.benefit-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.benefit-item .feature-title {
  margin: 0;
  font-size: 16px;
}

.benefit-item .feature-text {
  margin: 0;
}

/* 产品卡要点列表 */
.card-points {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.card-points li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.card-points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* 产品图白底 contain，避免包装图被裁剪 */
.card-media--contain {
  background: #fff;
}

.card-media--contain img {
  object-fit: contain;
  padding: 16px;
}

@media (max-width: 1024px) {
  .benefit-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .benefit-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ------------------------------------------------- Applications pages */
/* 场景小卡四列网格 */
.card-grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

/* 核心应用卡信息行：小图标 + 加粗标签 + 正文 */
.icon-circle--sm {
  width: 24px;
  height: 24px;
}

.icon-circle--sm svg {
  width: 14px;
  height: 14px;
}

.app-info-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 10px;
}

.app-info-row .icon-circle {
  margin-top: 1px;
}

.app-info-text {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.55;
}

.app-info-text strong {
  color: var(--ink-soft);
  font-weight: 700;
}

/* 推荐涂装体系：左图 + 右编号步骤列表 */
.sys-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 44px;
  align-items: center;
}

.sys-figure {
  margin: 0;
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.sys-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.sys-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: sys-step;
  display: grid;
  gap: 26px;
}

.sys-step {
  counter-increment: sys-step;
  position: relative;
  padding-left: 44px;
}

/* 编号圆点 */
.sys-step::before {
  content: counter(sys-step);
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 圆点间连接线（末项不画） */
.sys-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 13px;
  top: 32px;
  bottom: -26px;
  width: 2px;
  background: var(--line);
}

.sys-step-title {
  margin: 0 0 4px;
  font-size: 16px;
}

.sys-step-text {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

/* 应用示例图卡 */
.case-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3 / 2;
  background: var(--paper-alt);
}

.case-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 1024px) {
  .card-grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sys-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }
}

@media (max-width: 768px) {
  .card-grid-4 {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ------------------------------------------------- Technical Center page */

/* 分类区右上角搜索框 */
.tc-search {
  display: flex;
  align-items: stretch;
  margin-left: auto;
  max-width: 340px;
  width: 100%;
}

.tc-search input {
  flex: 1;
  min-width: 0;
  padding: 10px 14px;
  border: 1px solid var(--line-soft);
  border-right: 0;
  border-radius: var(--radius) 0 0 var(--radius);
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: #fff;
}

.tc-search input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

.tc-search button {
  flex: none;
  width: 44px;
  border: 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.tc-search button svg {
  width: 17px;
  height: 17px;
}

.tc-search button:hover {
  background: var(--accent-dark);
}

/* 分类卡：标题行右侧箭头 */
.cat-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.cat-arrow {
  flex: none;
  color: var(--accent);
  font-weight: 700;
}

/* 文档区：左列表 + 右支持卡 */
.tc-docs-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 28px;
  align-items: start;
}

.doc-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 14px;
}

.doc-tabs button {
  border: 0;
  background: none;
  padding: 10px 2px;
  margin-bottom: -1px;
  font: inherit;
  font-size: 14px;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.doc-tabs button.is-active {
  color: var(--accent);
  font-weight: 700;
  border-bottom-color: var(--accent);
}

.doc-tabs button:focus-visible,
.faq-q:focus-visible,
.doc-dl:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.doc-list {
  display: grid;
  gap: 12px;
}

.doc-row {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 18px;
}

.doc-badge {
  flex: none;
  width: 40px;
  height: 44px;
  display: grid;
  place-items: center;
  background: #d64541;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.4px;
  border-radius: 6px;
}

.doc-info {
  flex: 1;
  min-width: 0;
}

.doc-title {
  display: block;
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.doc-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.doc-date {
  flex: none;
  color: var(--muted);
  font-size: 13px;
}

.doc-dl {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 8px 14px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  background: #fff;
}

.doc-dl svg {
  width: 15px;
  height: 15px;
}

.doc-dl:hover {
  border-color: var(--accent);
}

.doc-empty {
  color: var(--muted);
  padding: 18px 4px;
  margin: 0;
}

/* 首页文档区“查看全部文档”入口（列表下方右对齐） */
.tc-docs-more {
  display: flex;
  justify-content: flex-end;
  margin-top: 14px;
}

/* 右侧支持卡 */
.tc-side {
  display: grid;
  gap: 16px;
}

.tc-side-card {
  display: grid;
  gap: 10px;
  background: var(--accent-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.tc-side-head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tc-side-title {
  margin: 0;
  font-size: 16px;
  color: var(--ink);
}

.tc-side-text {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
}

.tc-side-btn {
  justify-self: start;
  font-size: 14px;
  padding: 10px 16px;
}

.tc-side-figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--paper-alt);
}

.tc-side-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* FAQ 手风琴：双列，移动端单列 */
.tc-viewall {
  justify-self: end;
  align-self: end;
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
}

.tc-viewall:hover {
  text-decoration: underline;
}

.faq-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 24px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border: 0;
  background: none;
  font: inherit;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.faq-ico {
  flex: none;
  color: var(--accent);
  font-size: 18px;
  line-height: 1;
  transition: transform 0.2s ease;
}

.faq-item.is-open .faq-ico {
  transform: rotate(45deg);
}

.faq-a {
  padding: 0 18px 14px;
  color: var(--muted);
  font-size: 14px;
}

.faq-a p {
  margin: 0;
}

@media (max-width: 1024px) {
  .tc-docs-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 768px) {
  .faq-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .doc-row {
    flex-wrap: wrap;
  }

  .doc-date {
    order: 3;
  }

  .doc-dl {
    order: 4;
    margin-left: auto;
  }

  .tc-search {
    max-width: none;
  }
}

/* ------------------------------------------------- Factory & OEM/ODM page */

/* 大号圆形图标（指标栏 / 流程步骤） */
.icon-circle--lg {
  width: 52px;
  height: 52px;
}

.icon-circle--lg svg {
  width: 26px;
  height: 26px;
}

/* 核心能力指标栏：图标左 + 数值/标签右，竖线分隔 */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 6px 26px;
  text-align: left;
}

.stat-item:not(:first-child) {
  border-left: 1px solid var(--line);
}

.stat-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.stat-value {
  position: relative;
  margin: 0;
  color: var(--accent);
  font-size: 26px;
  font-weight: 800;
  line-height: 1.1;
}

.stat-label {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
}

/* Our Factory：左文 + 右一大四小图库 */
.fg-wrap {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 40px;
  align-items: center;
}

.fg-copy .section-actions {
  margin-top: 22px;
}

.fg-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 14px;
}

.fg-item {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3 / 2;
  background: var(--paper-alt);
}

.fg-item--main {
  grid-column: 1;
  grid-row: 1 / 3;
  aspect-ratio: auto;
}

.fg-item img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.fg-cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 22px 14px 12px;
  background: linear-gradient(to top, rgba(16, 32, 94, 0.82), rgba(16, 32, 94, 0));
  color: #fff;
  font-size: 13.5px;
  font-weight: 600;
}

.fg-zoom {
  flex: none;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: var(--accent);
  cursor: pointer;
}

.fg-zoom svg {
  width: 15px;
  height: 15px;
}

.fg-zoom:hover {
  background: #fff;
}

/* OEM/ODM Services：左标题 + 右 banner */
.oem-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
  margin-bottom: 34px;
}

.oem-banner {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--paper-alt);
}

.oem-banner img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.oem-cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.oem-card {
  padding: 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.oem-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.oem-card-head .icon-circle {
  flex: none;
}

.oem-card-title {
  margin: 0;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
}

.oem-card-text {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
}

/* OEM/ODM 6 步流程：桌面 6 列带箭头 */
.proc-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 20px;
  margin: 0;
  padding: 0;
  counter-reset: proc;
}

.proc-step {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}

/* 步骤间箭头（非末项，桌面） */
.proc-step:not(:last-child)::after {
  content: "\2192";
  position: absolute;
  right: -14px;
  top: 20px;
  color: var(--line-soft);
  font-size: 18px;
}

.proc-no {
  color: var(--accent);
  font-size: 15px;
  font-weight: 800;
}

.proc-title {
  margin: 0;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--ink);
}

/* Quality Control：左标题 + 右 4 项图标行 */
.qc-head {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.qc-items {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.qc-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 20px 10px;
  text-align: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.qc-title {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}

.qc-gallery {
  margin-top: 34px;
}

/* 图片 Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 32px;
  background: rgba(16, 32, 94, 0.85);
}

.lightbox[hidden] {
  display: none;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 86vh;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 26px;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
}

body.lb-open {
  overflow: hidden;
}

@media (max-width: 1024px) {
  .stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 22px;
  }

  .oem-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .qc-items {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .fg-wrap,
  .oem-head,
  .qc-head {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
  }

  .proc-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .proc-step:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 768px) {
  .stat-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .stat-item:not(:first-child) {
    border-left: 0;
  }

  .oem-cards {
    grid-template-columns: minmax(0, 1fr);
  }

  .fg-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .fg-item--main {
    grid-column: auto;
    grid-row: auto;
    aspect-ratio: 16 / 10;
  }

  .qc-items {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .proc-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ------------------------------------------------- About Us V3.1 page */

/* Hero 副标题（介于 H1 与正文之间） */
.hero-lead {
  max-width: 560px;
  margin: 0 0 14px;
  font-size: clamp(18px, 2.1vw, 23px);
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink-soft);
}

/* Who We Are 下方四图标能力条 */
.strip-wrap {
  margin-top: 44px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.stat-grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.strip-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.strip-text {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

/* 可点击卡片（Core Solutions / Capabilities） */
.ab-card-link {
  color: inherit;
  text-decoration: none;
  transition: box-shadow .2s ease, transform .2s ease;
}

.ab-card-link:hover {
  box-shadow: 0 12px 30px rgba(16, 32, 94, 0.1);
  transform: translateY(-3px);
}

.ab-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.ab-card-head .card-title {
  flex: 1 1 auto;
  min-width: 0;
}

.ab-arrow {
  flex: none;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  color: var(--accent);
  transition: background .2s ease, color .2s ease;
}

.ab-arrow svg {
  width: 16px;
  height: 16px;
}

.ab-card-link:hover .ab-arrow {
  background: var(--accent);
  color: #fff;
}

/* 能力卡：白色圆形图标压图左下角 */
.ab-cap-media {
  position: relative;
}

.ab-cap-badge {
  position: absolute;
  left: 16px;
  bottom: -22px;
  z-index: 2;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #fff;
  color: var(--accent);
  box-shadow: 0 6px 16px rgba(16, 32, 94, 0.16);
}

.ab-cap-badge svg {
  width: 22px;
  height: 22px;
}

.ab-cap-media + .card-body {
  padding-top: 34px;
}

@media (max-width: 1024px) {
  .stat-grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 22px;
  }
}

@media (max-width: 768px) {
  .stat-grid--4 {
    grid-template-columns: minmax(0, 1fr);
  }

  .stat-grid--4 .stat-item:not(:first-child) {
    border-left: 0;
  }

  .section-head-action {
    text-align: left;
  }
}

/* ------------------------------------------------- Contact Us 最终版（双栏） */

/* Hero：裁切焦点偏向右侧建筑（Y 同全站取底部，纵向裁切时只失顶部天空）；高度/留白不覆盖，直接继承全站 .hero-banner（含宽屏加高）以与其他页一致 */
.ct-hero .hero-media img {
  object-position: 70% 100%;
}

.ct-hero .hero-sub {
  margin-bottom: 0;
}

/* 跟随式下限：实测 About/Factory banner 在 769–1439 段为内容驱动 ~491–519，
   而 Contact 文案较少会卡在 base 下限 420 显得偏矮；此段补一个贴合下限。
   必须用 max-width:1439px 封顶，否则 .ct-hero .hero-banner 高优先级会压掉 ≥1440 的全站宽屏 bump（那里已自然等高）；≤768 仍走移动端内容自适应 */
@media (min-width: 769px) and (max-width: 1439px) {
  .ct-hero .hero-banner {
    min-height: 512px;
  }
}

/* Hero 内联面包屑：浅色，置于 H1 上方 */
.hero-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero-crumb-link {
  color: var(--muted);
  text-decoration: none;
}

.hero-crumb-link:hover {
  color: var(--accent);
}

.hero-crumb-sep {
  color: var(--line-soft);
}

.hero-crumb-cur {
  color: var(--ink-soft);
}

/* 主体双栏：左表单 ~64% + 右 Get in Touch ~36% */
.ct-two-col {
  display: grid;
  grid-template-columns: minmax(0, 64fr) minmax(0, 36fr);
  gap: 28px;
  align-items: start;
}

/* 左侧表单卡片：浅边框 + 留白 */
.ct-form-card {
  padding: clamp(24px, 3vw, 40px);
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

/* 卡片内不再需要旧表单容器的独立边框/底色 */
.lead-form.is-plain {
  padding: 0;
  background: none;
  border: 0;
  border-radius: 0;
}

/* 字数计数器：浮于文本框右下角 */
.ct-counter {
  margin: 6px 0 0;
  text-align: right;
  font-size: 12px;
  color: var(--muted);
}

/* 右侧 Get in Touch 卡片 */
.ct-touch-card {
  padding: clamp(22px, 2.6vw, 32px);
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.ct-touch-card .eyebrow {
  margin-bottom: 10px;
}

.ct-touch-heading {
  margin: 0 0 8px;
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 1.2;
  color: var(--ink-soft);
}

.ct-touch-sub {
  margin: 0 0 20px;
  font-size: 14px;
  color: var(--muted);
}

.ct-touch-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ct-touch-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: #f5f8fd;
  border: 1px solid #eaf0fa;
  border-radius: var(--radius);
}

.ct-touch-ico {
  flex: none;
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #e3ebf8;
  color: var(--accent);
}

.ct-touch-ico svg {
  width: 22px;
  height: 22px;
}

.ct-touch-ico--wa {
  background: #e7f8ee;
  color: #25a35a;
}

.ct-touch-body {
  flex: 1;
  min-width: 0;
}

.ct-touch-label {
  margin: 0 0 2px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-soft);
}

.ct-touch-val {
  margin: 0;
  font-size: 14px;
  color: var(--text);
  word-break: break-word;
}

.ct-touch-val.is-pending {
  color: var(--muted);
  font-style: italic;
}

.ct-touch-link {
  color: var(--accent);
  text-decoration: none;
}

.ct-touch-link:hover {
  text-decoration: underline;
}

/* WhatsApp 条目：按钮靠右 */
.ct-touch-item--wa {
  align-items: center;
}

.ct-wa-btn {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  border-radius: var(--radius);
  background: #25a35a;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.ct-wa-btn:hover {
  background: #1f8c4d;
  color: #fff;
}

.ct-wa-btn.is-disabled {
  background: #d7dee9;
  color: #94a1b5;
  cursor: not-allowed;
}

/* Quick Answers：浅蓝灰底 + 编号手风琴 */
.ct-faq {
  background: #eef3fb;
}

.ct-faq .section-title {
  margin: 0 0 10px;
}

.ct-faq .section-text {
  margin: 0 0 26px;
}

.ct-faq-list {
  gap: 14px 24px;
}

.ct-faq-list .faq-item {
  border-color: var(--line-soft);
}

.ct-faq-num {
  flex: none;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  background: #e3ebf8;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 700;
}

.ct-faq-q-text {
  flex: 1;
  min-width: 0;
  color: var(--ink-soft);
}

@media (max-width: 1024px) {
  .ct-two-col {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 768px) {
  .ct-touch-item--wa {
    flex-wrap: wrap;
  }

  .ct-wa-btn {
    margin-left: 56px;
  }
}

/* --------------------------------------------------------------- tiles */

.tile-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.tile {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  background: #fff;
  color: inherit;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.tile:hover {
  box-shadow: var(--shadow);
  color: inherit;
}

.tile-title {
  font-weight: 700;
  color: var(--ink);
}

.tile-text {
  color: var(--muted);
  font-size: 14px;
}

/* --------------------------------------------------------------- filters */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.chip {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
}

.chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.chip.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.chip.is-active:hover {
  color: #fff;
}

.empty-state {
  padding: 40px 0;
  color: var(--muted);
  text-align: center;
}

/* --------------------------------------------------------------- pagination */

.pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 40px;
}

.page-link {
  min-width: 40px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font-size: 14px;
  text-align: center;
}

.page-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.page-link.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

/* --------------------------------------------------------------- product */

.product-hero {
  padding: 46px 0;
  background: var(--paper-alt);
  border-bottom: 1px solid var(--line);
}

.product-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.product-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
}

.product-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.product-model {
  color: var(--muted);
  font-size: 14px;
}

.product-summary {
  color: var(--text);
  font-size: 16.5px;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
}

.gallery-item {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.detail-aside {
  display: grid;
  gap: 20px;
  position: sticky;
  top: 88px;
}

.banner-figure {
  margin: 0 0 28px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

.banner-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.prose {
  font-size: 16.5px;
  color: var(--text);
}

/* 单页正文（隐私政策等）：限制行长以保证可读性 */
.prose-narrow {
  max-width: 780px;
}

.prose h2 {
  margin-top: 1.6em;
  font-size: 24px;
}

.prose h3 {
  margin-top: 1.4em;
  font-size: 19px;
}

.prose ul,
.prose ol {
  padding-left: 1.4em;
}

.prose li {
  margin-bottom: 0.4em;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2em 0;
}

.prose th,
.prose td {
  padding: 10px 12px;
  border: 1px solid var(--line);
  text-align: left;
}

.prose img {
  border-radius: var(--radius);
}

.info-card {
  padding: 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.info-title {
  font-size: 15px;
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.info-list {
  margin: 0;
}

.info-list dt {
  margin-top: 12px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.info-list dt:first-child {
  margin-top: 0;
}

.info-list dd {
  margin: 4px 0 0;
  font-size: 15px;
}

.info-line {
  margin: 0 0 8px;
  font-size: 14.5px;
  word-break: break-word;
}

.info-note {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.doc-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.doc-item {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
  padding: 9px 0;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.doc-item:first-child {
  border-top: 0;
}

.doc-type {
  padding: 1px 7px;
  border-radius: 4px;
  background: var(--paper-alt);
  color: var(--muted);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.doc-link {
  font-weight: 600;
}

.doc-version {
  color: var(--muted);
  font-size: 12.5px;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
  font-size: 14.5px;
}

.spec-table th,
.spec-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.spec-table thead th {
  background: var(--paper-alt);
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
}

.spec-table tbody tr:last-child td {
  border-bottom: 0;
}

/* --------------------------------------------------------------- article */

.article-wrap {
  max-width: 860px;
}

.article-head {
  margin-bottom: 26px;
}

.article-date {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 13px;
}

.article-section {
  margin-top: 48px;
}

.link-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.link-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.link-list li:last-child {
  border-bottom: 0;
}

.meta-date {
  color: var(--muted);
  font-size: 13px;
}

/* --------------------------------------------------------------- cta band */

.cta-band {
  padding: 56px 0;
  background: var(--ink);
  color: #fff;
}

.cta-band-inline {
  margin-top: 48px;
  border-radius: var(--radius-lg);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}

.cta-title {
  margin: 0 0 6px;
  color: #fff;
  font-size: clamp(20px, 2.4vw, 26px);
}

.cta-text {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.cta-band .btn-ghost {
  border-color: rgba(255, 255, 255, 0.55);
}

/* 深蓝底上的主按钮统一反转为白底蓝字，保证对比度 */
.cta-band .btn-primary {
  background: #fff;
  color: var(--accent);
}

.cta-band .btn-primary:hover {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

/* 深蓝底上的眉标（eyebrow）默认是品牌深蓝，几乎不可见 → 反转为浅色保证对比度 */
.cta-band .eyebrow {
  color: rgba(255, 255, 255, 0.78);
}

.cta-band .eyebrow::before {
  background: rgba(255, 255, 255, 0.6);
}

/* --------------------------------------------------------------- split blocks */

.split-block {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 44px;
  align-items: center;
}

.split-block-reverse {
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
}

.split-media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--paper-alt);
}

.split-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* About Who We Are：配图按效果图裁为横向 2:1（仅本页 #who-we-are，不影响 Factory 的 .split-media） */
#who-we-are .split-media img {
  aspect-ratio: 2 / 1;
  object-position: 50% 45%;
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.step-card {
  padding: 24px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.step-no {
  display: block;
  margin-bottom: 10px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.step-title {
  font-size: 16.5px;
  margin-bottom: 6px;
}

.step-text {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.note-card {
  padding: 28px;
  background: var(--accent-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
}

.note-title {
  font-size: 18px;
  margin-bottom: 8px;
}

.note-text {
  margin: 0;
  color: #33405e;
  font-size: 14.5px;
}

.process-list {
  counter-reset: step;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-item {
  position: relative;
  padding: 0 0 18px 38px;
  border-left: 2px solid var(--line);
  margin-left: 12px;
  color: var(--text);
}

.process-item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.process-item::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: -13px;
  top: -2px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}

/* --------------------------------------------------------------- forms */

.form-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.lead-form {
  padding: 30px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 18px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 4px;
}

.form-field label {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
}

.form-field label em {
  color: #c0392b;
  font-style: normal;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
  transition: border-color 0.16s ease, box-shadow 0.16s ease;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(23, 43, 120, 0.12);
}

.form-field textarea {
  resize: vertical;
  min-height: 130px;
}

.form-field.is-invalid input,
.form-field.is-invalid select,
.form-field.is-invalid textarea {
  border-color: #c0392b;
}

.field-error {
  color: #c0392b;
  font-size: 12.5px;
}

.form-status {
  margin-bottom: 18px;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 14px;
}

.form-status.is-error {
  background: #fdf1ef;
  border: 1px solid #f3c8c1;
  color: #9c2f22;
}

.form-status.is-success {
  background: var(--accent-soft);
  border: 1px solid var(--line-soft);
  color: var(--accent-dark);
}

.form-actions {
  margin-top: 22px;
}

.form-privacy {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 12.5px;
}

.form-aside {
  position: sticky;
  top: 88px;
}

/* --------------------------------------------------------------- thank you */

.thank-you-inner {
  max-width: 720px;
  text-align: center;
}

.thank-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 62px;
  height: 62px;
  margin-bottom: 20px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 26px;
  font-weight: 700;
}

.thank-ref {
  display: inline-block;
  margin: 8px 0 6px;
  padding: 8px 16px;
  border: 1px dashed var(--line-soft);
  border-radius: 8px;
  background: var(--paper-alt);
  font-size: 14px;
}

.thank-note {
  color: var(--muted);
  font-size: 13.5px;
}

.thank-actions {
  justify-content: center;
  margin-top: 22px;
}

/* --------------------------------------------------------------- error pages */

.error-inner {
  max-width: 680px;
  text-align: center;
}

.error-code {
  margin: 0 0 6px;
  font-size: clamp(64px, 12vw, 104px);
  font-weight: 800;
  line-height: 1;
  color: #dfe3ee;
  letter-spacing: -0.04em;
}

.error-detail {
  color: var(--muted);
  font-size: 14px;
}

.error-inner .hero-actions {
  justify-content: center;
}

.error-inner .btn-outline {
  background: #fff;
}

/* --------------------------------------------------------------- footer */

.site-footer {
  padding: 60px 0 26px;
  background: var(--ink);
  color: rgba(255, 255, 255, 0.72);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
  gap: 32px;
}

.footer-brand {
  margin-bottom: 10px;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
}

.footer-logo {
  display: block;
  height: 40px;
  width: auto;
  margin-bottom: 12px;
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 4px;
}

.footer-follow {
  margin-top: 16px;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  color: #fff;
  transition: filter .18s ease, transform .18s ease;
}

.footer-social a:hover {
  filter: brightness(1.12);
  transform: translateY(-1px);
}

.footer-social svg {
  display: block;
  width: auto;
  height: 16px;
}

/* 各平台官方 UI 底色（chip），图标为白色单色 mark */
.footer-social .soc--fb { background: #1877F2; }
.footer-social .soc--wa { background: #25D366; }
.footer-social .soc--li { background: #0A66C2; }
.footer-social .soc--yt { background: #FF0000; }
.footer-social .soc--ig {
  background: radial-gradient(circle at 30% 110%, #fdf497 0, #fdf497 5%, #fd5949 45%, #d6249f 60%, #285AEB 90%);
}

/* Instagram 未开通时的占位图标：与正式 chip 同底色，置灰、不可点击 */
.footer-social .soc--soon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  opacity: 0.4;
  cursor: default;
}

.footer-title {
  margin-bottom: 14px;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-text {
  margin: 0 0 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.66);
}

.footer-note {
  margin: 12px 0 0;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.45);
}

.footer-link {
  display: block;
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.footer-link:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

.footer-legal a {
  margin-left: 16px;
  color: rgba(255, 255, 255, 0.66);
}

.footer-legal a:hover {
  color: #fff;
}

/* --------------------------------------------------------------- responsive */

@media (min-width: 1440px) {
  .section {
    padding: 88px 0;
  }

  .card-grid {
    gap: 28px;
  }

  .feature-grid {
    gap: 32px;
  }

  .factory-block {
    gap: 56px;
  }

  /* 宽屏（含 1920×1080）下 banner 加高，避免通栏图显得偏矮。
     上限按图比例给到 880px（≈2545 宽 / 2.90）：容器比图扁时 cover 会纵向裁图，
     原 680px 上限在 CSS 视口 ≥1990px（2K 屏、或 1080p 屏浏览器缩小/系统缩放＜100%）
     会把 banner 底部裁掉 100px 以上，即「banner 图下方不全」 */
  .hero-banner {
    min-height: clamp(560px, 36vw, 880px);
  }
}

@media (max-width: 1024px) {
  .card-grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 26px;
  }

  .product-hero-inner,
  .detail-grid,
  .form-wrap,
  .split-block,
  .split-block-reverse,
  .factory-block,
  .why-block,
  .section-head-split {
    grid-template-columns: minmax(0, 1fr);
  }

  .why-block,
  .section-head-split {
    gap: 22px;
  }

  /* 堆叠为单列后图片无内容列定高，回退用宽高比撑高 */
  .factory-media img {
    height: auto;
    aspect-ratio: 16 / 9;
  }

  .section-head-split {
    margin-bottom: 30px;
  }

  .detail-aside,
  .form-aside {
    position: static;
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* 页头折叠断点：1180 以下统一走汉堡菜单
   原因：英文导航单行约需 970px，1180 以下放不下，而中文一行就够；
   两种语言折行数不同会让页头高度与导航起点随语言切换跳动 */
@media (max-width: 1180px) {
  .nav-toggle {
    display: flex;
  }

  .nav-caret {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex: 0 0 auto;
    flex-direction: column;
    align-items: stretch;
    flex-wrap: nowrap;
    gap: 4px;
    padding: 14px 20px 20px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    max-height: calc(100vh - 68px);
    overflow-y: auto;
  }

  .site-nav.is-open {
    display: flex;
  }

  .nav-item {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
  }

  .nav-item > .nav-link {
    flex: 1 1 auto;
  }

  .nav-dropdown {
    position: static;
    display: none;
    flex: 1 0 100%;
    order: 3;
    min-width: 0;
    padding: 4px 0 4px 14px;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    box-shadow: none;
  }

  .nav-dropdown.is-open {
    display: block;
  }

  .nav-cta {
    margin: 10px 0 0;
  }

  .nav-lang {
    margin-left: 0;
    text-align: center;
  }

  /* 语言按钮上顶栏：margin-left:auto 把「语言 + 汉堡」整组推到最右 */
  .header-inner .nav-lang-bar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    height: 38px;
  }

  /* 面板内不再重复语言切换 */
  .site-nav .nav-lang {
    display: none;
  }
}

/* 平板 601–1024：文字叠图（继承 base 叠图 + 左侧白遮罩），横向锚定到右以保留右侧图案 */
@media (min-width: 601px) and (max-width: 1024px) {
  .hero-media img {
    object-position: 100% 38%;  /* X=右；Y 对 ~3.2:1 通栏图基本无影响，裁切主要在横向 */
  }

  .hero-copy {
    max-width: 520px;           /* 收窄文字，给右侧图案留出空间 */
  }
}

/* 手机 ≤600：文字在上、可裁切图带在下；取消左遮罩；横向锚定到右保留右侧内容 */
@media (max-width: 600px) {
  .hero {
    display: flex;
    flex-direction: column;
  }

  .hero-media {
    position: relative;
    inset: auto;
    order: 2;                          /* 图带在文字下方 */
    height: clamp(200px, 42vw, 300px); /* 图带高度，可裁切 */
    overflow: hidden;
  }

  .hero-media img {
    height: 100%;
    object-fit: cover;                 /* 允许裁切 */
    object-position: 100% 45%;         /* 右锚定，保留右侧内容 */
  }

  .hero-media::before {
    display: none;                     /* 取消左侧白遮罩 */
  }

  .hero-copy {
    max-width: none;
  }

  /* 用 .hero .hero-banner 提升权重，压过 .ct-hero .hero-banner 的 min-height（769–1439 亦覆盖） */
  .hero .hero-banner {
    order: 1;                          /* 文字在上 */
    min-height: 0;
    padding-top: 40px;
    padding-bottom: 34px;
  }

  .hero-title {
    font-size: clamp(26px, 7vw, 36px);
  }
}

@media (max-width: 768px) {
  .section {
    padding: 52px 0;
  }

  /* 卡片与 Why 区在 768 仍保持两列，到 600 以下才单列 */
  .tile-grid,
  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  /* 工厂区块：移动端图在上、内容在下，能力列表取消竖线分隔 */
  .factory-media {
    order: -1;
  }

  .factory-content {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .capability-list {
    padding-left: 0;
    border-left: none;
  }

  .split-block .split-media {
    order: -1;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 600px) {
  .card-grid-3,
  .card-grid-2,
  .feature-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .feature-item {
    padding: 0 0 18px;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }

  .feature-item:last-child {
    padding-bottom: 0;
    border-bottom: 0;
  }

  .form-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .lead-form {
    padding: 22px;
  }

  .step-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-bottom {
    flex-direction: column;
  }

  .footer-legal a {
    margin: 0 16px 0 0;
  }
}

@media (max-width: 400px) {
  .container {
    padding: 0 16px;
  }

  .section {
    padding: 42px 0;
  }

  .hero-banner {
    padding-top: 32px;
    padding-bottom: 28px;
  }

  .hero-actions .btn {
    flex: 1 1 100%;
  }

  .trust-chips {
    gap: 12px 16px;
  }

  .card-body {
    padding: 18px;
  }

  .lead-form {
    padding: 18px;
  }
}

/* ==========================================================================
   产品详情页 detail_rich（pd- 前缀，数据驱动 8 款共用）
   ========================================================================== */

/* Hero：左图库 + 右产品信息 */
.pd-hero {
  padding: 44px 0 0;
  background: linear-gradient(180deg, var(--accent-soft), #fff 62%);
}

.pd-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

/* 图库：竖排缩略图 + 主图 */
.pd-gallery {
  display: flex;
  gap: 16px;
}

.pd-thumbs {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: none;
}

.pd-thumb {
  width: 74px;
  height: 74px;
  padding: 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.pd-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pd-thumb.is-active,
.pd-thumb:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(23, 43, 120, 0.14);
}

.pd-main {
  position: relative;
  flex: 1 1 auto;
  margin: 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
}

.pd-main img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  cursor: zoom-in;
}

.pd-zoom-hint {
  position: absolute;
  right: 12px;
  bottom: 12px;
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(16, 32, 94, 0.55);
  color: #fff;
  pointer-events: none;
}

.pd-zoom-hint svg {
  width: 18px;
  height: 18px;
}

/* 右侧产品信息 */
.pd-intro {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.pd-title {
  font-size: clamp(26px, 3vw, 38px);
  margin: 0;
  color: var(--accent);
}

.pd-meta-line {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  font-size: 15px;
}

.pd-meta-label {
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.pd-meta-value {
  color: var(--ink);
  font-weight: 600;
}

.pd-meta-link {
  color: var(--accent);
  font-weight: 600;
}

.pd-positioning {
  margin: 0;
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
}

/* 4 卖点卡 */
.pd-highlights {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.pd-highlight-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 14px 8px;
  text-align: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.pd-highlight-title {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink);
}

/* 优势勾选列表 */
.pd-advantages {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.pd-advantages li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text);
}

.pd-check {
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  color: var(--accent);
}

/* 三按钮 */
.pd-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

/* 通栏信息条 */
.pd-infobar {
  margin-top: 40px;
  border-top: 1px solid var(--line);
  background: var(--paper-alt);
}

.pd-infobar-inner {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  padding-top: 22px;
  padding-bottom: 22px;
}

.pd-info-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pd-info-label {
  display: block;
  font-size: 12.5px;
  color: var(--muted);
}

.pd-info-value {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

/* 锚点导航条 */
.pd-tabs {
  position: sticky;
  top: 68px;
  z-index: 40;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}

.pd-tabs-inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
}

.pd-tab {
  flex: none;
  padding: 16px 18px;
  font-weight: 600;
  font-size: 15px;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.pd-tab:hover {
  color: var(--accent);
}

.pd-tab.is-active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* 锚点定位时避开 sticky 头部 */
#pd-overview,
#pd-applications,
#pd-technical {
  scroll-margin-top: 130px;
}

/* Overview */
.pd-overview {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 44px;
  align-items: start;
}

.pd-overview-text {
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
}

.pd-subtitle {
  margin: 22px 0 12px;
  font-size: 18px;
  color: var(--ink);
}

.pd-checks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.pd-checks li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text);
}

.pd-overview-media {
  margin: 0 auto;
  /* 图框与 Overview 内容块同高：拉伸至左列（标题顶→特性列表底）决定的行高；圆角/边框/裁剪放在画框层 */
  align-self: stretch;
  position: relative;
  overflow: hidden;
  width: 96%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-soft);
  background: #fff;
}

.pd-overview-media img {
  /* 绝对定位且高度 118%、底部锚定：顶部溢出画框被裁，裁掉的恰是素材顶部天空带，漆桶主体仍贴图框顶 */
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 118%;
  aspect-ratio: 2.1 / 1;
  object-fit: cover;
  object-position: 50% 100%;
}

/* Applications 4 列网格 */
.pd-app-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.pd-app-card {
  display: flex;
  flex-direction: column;
}

.pd-app-card .card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pd-app-body {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
}

.pd-app-name {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.pd-app-icon {
  flex: none;
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
}

.pd-app-icon svg {
  width: 18px;
  height: 18px;
}

/* Technical Data + Application Guide 双栏 */
.pd-tech-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 44px;
  align-items: start;
}

.pd-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.pd-table th,
.pd-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.pd-table th {
  width: 34%;
  color: var(--muted);
  font-weight: 600;
  background: var(--accent-soft);
}

.pd-table td {
  color: var(--text);
}

.pd-guide-title {
  /* 与左列 .section-title 对齐：同字号，下方留白同 .section-head（32px）以对齐两列内容起始线 */
  font-size: clamp(22px, 2.6vw, 30px);
  margin-bottom: 32px;
}

/* 左列标题间距显式交给 .section-head，不依赖 h2 与 header 的 margin 折叠 */
.pd-tech-col .section-title {
  margin-bottom: 0;
}

.pd-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.pd-step {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.pd-step-num {
  flex: none;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
}

.pd-step-title {
  margin: 0 0 2px;
  font-size: 15.5px;
  color: var(--ink);
}

.pd-step-text {
  margin: 0;
  font-size: 14.5px;
  color: var(--text);
  line-height: 1.6;
}

/* Related 卡复用 .card / .card-grid-3，此处无额外 */

/* 主图放大层（lightbox） */
.pd-lightbox {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 32px;
  background: rgba(16, 32, 94, 0.82);
}

.pd-lightbox.is-open {
  display: flex;
}

.pd-lightbox img {
  max-width: min(1100px, 92vw);
  max-height: 88vh;
  border-radius: var(--radius-lg);
  background: #fff;
}

.pd-lightbox-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

/* ---- 响应式：平板 / 移动（≤900 单列堆叠） ---- */
@media (max-width: 1024px) {
  .pd-hero-inner {
    gap: 32px;
  }

  .pd-app-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pd-infobar-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 24px;
  }
}

@media (max-width: 900px) {
  .pd-hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .pd-overview,
  .pd-tech-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  /* 单列堆叠下行高不再由左列决定：取消拉伸与绝对定位，回归常规 2.1:1 图框 */
  .pd-overview-media {
    align-self: auto;
  }

  .pd-overview-media img {
    position: static;
    height: auto;
  }

  .pd-highlights {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .pd-gallery {
    flex-direction: column-reverse;
  }

  .pd-thumbs {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .pd-app-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .pd-infobar-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .pd-tabs {
    top: 60px;
  }
}

@media (max-width: 480px) {
  .pd-highlights {
    grid-template-columns: minmax(0, 1fr);
  }

  .pd-actions .btn {
    flex: 1 1 100%;
  }
}