/* ============================================
   SIEG MEST 思格迈斯特 - 主样式表（合规版）
   深蓝主色 + 橙色强调 | 简约专业 | 响应式

   【字体合规说明】
   本网站使用思源黑体（Noto Sans SC）+ Noto Sans 作为首选显示字体，
   字体文件托管在自有服务器（assets/fonts/）），不向任何第三方传输访客数据。
   两款字体均由 Adobe 与 Google 联合开发，采用 SIL Open Font License 1.1 授权，
   可免费商用、可修改、可嵌入。同时回退到系统自带字体（苹方、微软雅黑等），
   确保各平台显示正常。

   【合规改造记录 - R-NEW-05】
   2026-XX-XX：本地化字体托管，消除 Google Fonts 跨境传输违规。
   - 删除 @import url('https://fonts.googleapis.com/...')
   - 改用 @font-face + 本地路径 ../assets/fonts/...
   - 增加 @supports 防御层，浏览器不支持时不下载字体
   - 增加 --font-system-fallback 用于纯系统字体回退

   【防御性设计原则】
   1. 默认层：仅系统字体，不下载任何 woff 文件（最安全）
   2. WOFF2 层：仅当浏览器声明支持 font-format: woff2 时加载
   3. WOFF 层：仅当支持 WOFF 不支持 WOFF2 时加载
   ============================================ */

/* CSS Variables */
:root {
  --primary-dark: #0a2540;
  --primary: #1a3a5c;
  --primary-light: #2c5282;
  --primary-lighter: #3b6b9e;
  --accent: #f26522;
  --accent-light: #ff8c5a;
  --accent-dark: #d4541a;
  --bg-white: #ffffff;
  --bg-light: #f7f9fc;
  --bg-gray: #eef2f7;
  --text-dark: #1a202c;
  --text-body: #2d3748;
  --text-muted: #718096;
  --text-light: #a0aec0;
  --border: #e2e8f0;
  --border-light: #edf2f7;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 50px rgba(10,37,64,0.18);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  /* 系统字体回退栈（任何浏览器都可用）*/
  --font-system-fallback: -apple-system, BlinkMacSystemFont, 'Segoe UI',
                           'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei',
                           'Helvetica Neue', Arial, sans-serif;
  /* 法务修改：使用思源黑体(免费可商用)作为首选字体，回退到系统字体 */
  --font-sans: 'Noto Sans SC', 'Noto Sans', var(--font-system-fallback);
  --max-width: 1280px;
}

/* ============================================
   【第一层防御 - 默认】任何浏览器都安全
   不加载任何 woff 文件，仅使用系统字体栈
   ============================================ */
body {
  font-family: var(--font-system-fallback);
}

/* ============================================
   【R-NEW-05 闭环】GDPR / ePrivacy Cookie 横幅
   【R-NEW-05 闭环】CCPA "Do Not Sell" 弹窗
   【R-NEW-05 闭环】Footer Do-Not-Sell 链接
   ============================================ */
.cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  background: rgba(10, 37, 64, 0.97);
  color: #fff;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
  font-size: 0.92rem;
  line-height: 1.55;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.cookie-banner-text {
  flex: 1 1 320px;
  min-width: 280px;
}
.cookie-banner-text strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-light, #ff8c5a);
}
.cookie-banner-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.cookie-banner-btn {
  padding: 9px 20px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: transparent;
  color: #fff;
  border-radius: 6px;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}
.cookie-banner-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.7);
}
.cookie-banner-btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.cookie-banner-btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}
@media (max-width: 600px) {
  .cookie-banner {
    padding: 14px 16px;
    font-size: 0.85rem;
  }
  .cookie-banner-actions {
    width: 100%;
  }
  .cookie-banner-btn {
    flex: 1;
    padding: 8px 12px;
  }
}

/* Footer 底部一行：版权 / 备案号 / 备案查询 / 不出售信息 居中排成一行 */
.footer-bottom {
  /* 已在 1765 行统一定义：display:flex; flex-wrap:wrap; justify-content:center; gap:10px 24px; text-align:center */
}
.footer-sep-item {
  display: inline-flex;
  align-items: center;
  gap: 4px 10px;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-sep-item + .footer-sep-item::before,
.footer-bottom > * + *::before {
  content: "·";
  margin: 0 2px 0 0;
  color: rgba(255, 255, 255, 0.28);
}
.footer-beian {
  font-size: 0.82rem;
  line-height: 1.6;
}
.footer-beian-link {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color 0.2s;
  white-space: nowrap;
  cursor: pointer;
}
.footer-beian-link:hover,
.footer-beian-link:focus-visible {
  color: var(--accent-light);
  text-decoration: underline;
}
.footer-beian-query {
  padding: 0 8px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  font-size: 0.76rem;
  line-height: 1.6;
}
.footer-beian-query:hover,
.footer-beian-query:focus-visible {
  border-color: var(--accent-light);
  text-decoration: none;
}

/* Footer Do-Not-Sell 链接（合并入底部一行，不再单独成块） */
.footer-dns-link {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: underline;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  transition: color 0.2s;
}
.footer-dns-link:hover,
.footer-dns-link:focus {
  color: var(--accent-light);
  outline: none;
}

/* 备案号复制轻提示 */
.footer-toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(16px);
  background: rgba(20, 24, 36, 0.96);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.82rem;
  line-height: 1.4;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.32);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 1200;
  max-width: 86vw;
  text-align: center;
}
.footer-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* DNS 弹窗 */
.dns-modal {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.dns-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
}
.dns-modal-content {
  position: relative;
  background: #fff;
  color: var(--text-body);
  padding: 28px 32px;
  border-radius: 12px;
  max-width: 520px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  font-family: var(--font-sans);
}
.dns-modal-content h3 {
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 14px;
  padding-left: 12px;
  border-left: 4px solid var(--accent);
}
.dns-modal-content p {
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 14px;
  color: var(--text-body);
}
.dns-modal-actions {
  margin-top: 14px;
  text-align: right;
}
.dns-modal-close {
  padding: 8px 22px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.92rem;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s;
}
.dns-modal-close:hover {
  background: var(--primary-dark);
}

/* ============================================
   【第二层防御 - WOFF2】仅支持 WOFF2 的现代浏览器
   加载本地 WOFF2 字体文件
   ============================================ */
@supports (font-format: woff2) {
  /* ---- Noto Sans SC - Latin 子集 ---- */
  @font-face {
    font-family: 'Noto Sans SC';
    font-style: normal;
    font-weight: 300;
    font-display: swap;
    src: url('../assets/fonts/noto-sans-sc/noto-sans-sc-latin-300-normal.woff2') format('woff2'),
         url('../assets/fonts/noto-sans-sc/noto-sans-sc-latin-300-normal.woff') format('woff');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
  }
  @font-face {
    font-family: 'Noto Sans SC';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../assets/fonts/noto-sans-sc/noto-sans-sc-latin-400-normal.woff2') format('woff2'),
         url('../assets/fonts/noto-sans-sc/noto-sans-sc-latin-400-normal.woff') format('woff');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
  }
  @font-face {
    font-family: 'Noto Sans SC';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('../assets/fonts/noto-sans-sc/noto-sans-sc-latin-500-normal.woff2') format('woff2'),
         url('../assets/fonts/noto-sans-sc/noto-sans-sc-latin-500-normal.woff') format('woff');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
  }
  @font-face {
    font-family: 'Noto Sans SC';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../assets/fonts/noto-sans-sc/noto-sans-sc-latin-700-normal.woff2') format('woff2'),
         url('../assets/fonts/noto-sans-sc/noto-sans-sc-latin-700-normal.woff') format('woff');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
  }
  @font-face {
    font-family: 'Noto Sans SC';
    font-style: normal;
    font-weight: 900;
    font-display: swap;
    src: url('../assets/fonts/noto-sans-sc/noto-sans-sc-latin-900-normal.woff2') format('woff2'),
         url('../assets/fonts/noto-sans-sc/noto-sans-sc-latin-900-normal.woff') format('woff');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
  }

  /* ---- Noto Sans SC - Chinese Simplified 子集 ---- */
  @font-face {
    font-family: 'Noto Sans SC';
    font-style: normal;
    font-weight: 300;
    font-display: swap;
    src: url('../assets/fonts/noto-sans-sc/noto-sans-sc-chinese-simplified-300-normal.woff2') format('woff2');
    unicode-range: U+4E00-9FFF, U+3000-303F, U+FF00-FFEF;
  }
  @font-face {
    font-family: 'Noto Sans SC';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../assets/fonts/noto-sans-sc/noto-sans-sc-chinese-simplified-400-normal.woff2') format('woff2');
    unicode-range: U+4E00-9FFF, U+3000-303F, U+FF00-FFEF;
  }
  @font-face {
    font-family: 'Noto Sans SC';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('../assets/fonts/noto-sans-sc/noto-sans-sc-chinese-simplified-500-normal.woff2') format('woff2');
    unicode-range: U+4E00-9FFF, U+3000-303F, U+FF00-FFEF;
  }
  @font-face {
    font-family: 'Noto Sans SC';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../assets/fonts/noto-sans-sc/noto-sans-sc-chinese-simplified-700-normal.woff2') format('woff2');
    unicode-range: U+4E00-9FFF, U+3000-303F, U+FF00-FFEF;
  }
  @font-face {
    font-family: 'Noto Sans SC';
    font-style: normal;
    font-weight: 900;
    font-display: swap;
    src: url('../assets/fonts/noto-sans-sc/noto-sans-sc-chinese-simplified-900-normal.woff2') format('woff2');
    unicode-range: U+4E00-9FFF, U+3000-303F, U+FF00-FFEF;
  }

  /* ---- Noto Sans - Latin 子集 ---- */
  @font-face {
    font-family: 'Noto Sans';
    font-style: normal;
    font-weight: 300;
    font-display: swap;
    src: url('../assets/fonts/noto-sans/noto-sans-latin-300-normal.woff2') format('woff2'),
         url('../assets/fonts/noto-sans/noto-sans-latin-300-normal.woff') format('woff');
  }
  @font-face {
    font-family: 'Noto Sans';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../assets/fonts/noto-sans/noto-sans-latin-400-normal.woff2') format('woff2'),
         url('../assets/fonts/noto-sans/noto-sans-latin-400-normal.woff') format('woff');
  }
  @font-face {
    font-family: 'Noto Sans';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('../assets/fonts/noto-sans/noto-sans-latin-500-normal.woff2') format('woff2'),
         url('../assets/fonts/noto-sans/noto-sans-latin-500-normal.woff') format('woff');
  }
  @font-face {
    font-family: 'Noto Sans';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../assets/fonts/noto-sans/noto-sans-latin-700-normal.woff2') format('woff2'),
         url('../assets/fonts/noto-sans/noto-sans-latin-700-normal.woff') format('woff');
  }
  @font-face {
    font-family: 'Noto Sans';
    font-style: normal;
    font-weight: 900;
    font-display: swap;
    src: url('../assets/fonts/noto-sans/noto-sans-latin-900-normal.woff2') format('woff2'),
         url('../assets/fonts/noto-sans/noto-sans-latin-900-normal.woff') format('woff');
  }

  /* WOFF2 层覆盖默认层 - 应用本地字体 */
  body {
    font-family: var(--font-sans);
  }
}

/* ============================================
   【第三层防御 - 仅 WOFF】仅支持 WOFF 不支持 WOFF2 的旧浏览器
   仅加载 WOFF 文件
   ============================================ */
@supports (font-format: woff) and (not (font-format: woff2)) {
  @font-face {
    font-family: 'Noto Sans SC';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../assets/fonts/noto-sans-sc/noto-sans-sc-latin-400-normal.woff') format('woff');
    unicode-range: U+0000-00FF;
  }
  @font-face {
    font-family: 'Noto Sans';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../assets/fonts/noto-sans/noto-sans-latin-400-normal.woff') format('woff');
  }

  body {
    font-family: 'Noto Sans SC', 'Noto Sans', var(--font-system-fallback);
  }
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-body);
  background: var(--bg-white);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; font-size: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; }

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Section common */
.section { padding: 80px 0; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.section-title .accent { color: var(--accent); }
.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(242,101,34,0.35);
}
.btn-primary:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(242,101,34,0.45);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.6);
}
.btn-outline:hover {
  background: #fff;
  color: var(--primary-dark);
  border-color: #fff;
}
.btn-outline-dark {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline-dark:hover {
  background: var(--primary);
  color: #fff;
}

/* ============================================
   Header / Navigation
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 37, 64, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.header.scrolled {
  background: rgba(10, 37, 64, 0.98);
  box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.logo {
  display: flex;
  align-items: center;
}
.logo-img {
  height: 42px;
  width: auto;
  display: block;
  flex-shrink: 0;
}

/* Top bar with QR + contact */
.top-bar {
  display: flex;
  align-items: center;
  gap: 20px;
}
.douyin-qr {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.85);
  font-size: 0.8rem;
  cursor: pointer;
  position: relative;
}
.douyin-qr img {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  object-fit: cover;
  border: 1px solid rgba(255,255,255,0.2);
}
.douyin-qr .qr-tooltip {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: #fff;
  padding: 12px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 100;
  white-space: nowrap;
}
.douyin-qr:hover .qr-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(4px);
}
.douyin-qr .qr-tooltip img {
  width: 140px;
  height: 140px;
  border-radius: 8px;
}
.douyin-qr .qr-tooltip p {
  color: var(--text-body);
  font-size: 0.75rem;
  margin-top: 6px;
  text-align: center;
}

.header-contact {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-size: 0.85rem;
}
.header-contact .icon {
  width: 32px;
  height: 32px;
  background: rgba(242,101,34,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-light);
  font-size: 0.9rem;
}
.header-contact .info { line-height: 1.3; }
.header-contact .info small { color: rgba(255,255,255,0.55); font-size: 0.7rem; display: block; }
.header-contact .info strong { color: #fff; font-size: 0.9rem; font-weight: 600; }

/* Nav */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-desktop a {
  color: rgba(255,255,255,0.85);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav-desktop a:hover, .nav-desktop a.active {
  color: #fff;
  background: rgba(255,255,255,0.1);
}
.nav-desktop a.active { color: var(--accent-light); }

/* Language switcher */
.lang-switch {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  padding: 3px;
  margin-left: 8px;
}
.lang-switch button {
  padding: 5px 10px;
  font-size: 0.78rem;
  font-weight: 600;
  color: rgba(255,255,255,0.6);
  border-radius: 4px;
  transition: var(--transition);
}
.lang-switch button.active {
  background: var(--accent);
  color: #fff;
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.menu-toggle span {
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}
.menu-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile nav */
.nav-mobile {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--primary-dark);
  padding: 20px 24px;
  flex-direction: column;
  gap: 4px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
}
.nav-mobile.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}
/* 收起态必须 visibility:hidden，只靠 opacity:0 的话链接仍可被 Tab 聚焦 */
body.nav-open { overflow: hidden; }
.nav-mobile a {
  color: rgba(255,255,255,0.85);
  padding: 14px 12px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.nav-mobile a:hover { background: rgba(255,255,255,0.08); color: #fff; }
.nav-mobile .lang-switch { justify-content: center; margin: 12px 0 0; }

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  overflow: hidden;
  padding-top: 72px;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(242,101,34,0.12) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59,107,158,0.2) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 60px 24px;
  width: 100%;
  text-align: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(242,101,34,0.15);
  border: 1px solid rgba(242,101,34,0.3);
  color: var(--accent-light);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 28px;
}
.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}
.hero-title .accent {
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.75);
  max-width: 720px;
  margin: 0 auto 40px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Hero stats */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 64px;
  flex-wrap: wrap;
}
.hero-stat {
  text-align: center;
}
.hero-stat .value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: 8px;
}
.hero-stat .label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
}

/* Hero patents CTA — 点击查看专利详情 */
.hero-patents-cta {
  margin-top: 24px;
  display: flex;
  justify-content: center;
}
.hero-patents-btn {
  appearance: none;
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.45);
  padding: 8px 22px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.hero-patents-btn:hover {
  background: #fff;
  color: var(--primary-dark);
  border-color: #fff;
}

/* Patents Modal — 复用 dns-modal 模式，扩展为表格列表 */
.patents-modal {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.patents-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
}
.patents-modal-content {
  position: relative;
  background: #fff;
  color: var(--text-body);
  padding: 28px 32px;
  border-radius: 12px;
  max-width: 720px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  font-family: var(--font-sans);
}
.patents-modal-content h3 {
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 8px;
  padding-left: 12px;
  border-left: 4px solid var(--accent);
}
.patents-modal-subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  padding-left: 12px;
}
.patents-modal-table-wrap {
  width: 100%;
  overflow-x: auto;
}
.patents-modal-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.patents-modal-table thead th {
  text-align: left;
  padding: 10px 12px;
  background: var(--bg-light);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 0.82rem;
  border-bottom: 2px solid var(--accent);
  white-space: nowrap;
}
.patents-modal-table tbody td {
  padding: 10px 12px;
  border-bottom: 1px solid #edf2f7;
  vertical-align: top;
  line-height: 1.55;
}
.patents-modal-table tbody tr:nth-child(even) td {
  background: #fafbfc;
}
.patents-modal-type {
  white-space: nowrap;
  color: var(--primary-dark);
  font-weight: 600;
}
.patents-modal-name {
  min-width: 180px;
}
.patents-modal-number {
  font-family: Menlo, Monaco, Consolas, monospace;
  font-size: 0.86rem;
  color: var(--primary);
  white-space: nowrap;
}
.patents-tba {
  display: inline-block;
  padding: 1px 8px;
  background: #fffbeb;
  color: #b7791f;
  border-radius: 4px;
  font-size: 0.78rem;
  font-family: var(--font-sans);
}
.patents-modal-actions {
  margin-top: 18px;
  text-align: right;
}
.patents-modal-close {
  padding: 8px 22px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.92rem;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s;
}
.patents-modal-close:hover {
  background: var(--primary-dark);
}

/* ============================================
   Product Carousel (5 items rotating)
   ============================================ */
.products-section {
  background: var(--bg-light);
  position: relative;
}
.carousel-wrapper {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}
.carousel-track {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.carousel-slide {
  min-width: 100%;
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 480px;
  background: #fff;
}
.carousel-slide .slide-image {
  position: relative;
  overflow: hidden;
}
.carousel-slide .slide-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.carousel-slide:hover .slide-image img { transform: scale(1.05); }
.carousel-slide .slide-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 60%, rgba(255,255,255,0.3) 100%);
}
.carousel-slide .slide-content {
  padding: 56px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: linear-gradient(135deg, #fff 0%, var(--bg-light) 100%);
}
.slide-number {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.2em;
  margin-bottom: 16px;
}
.slide-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 16px;
  line-height: 1.3;
}
.slide-desc {
  font-size: 0.98rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.7;
}
.slide-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}
.slide-features span {
  background: rgba(26,58,92,0.08);
  color: var(--primary);
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 500;
}
.slide-specs {
  font-size: 0.82rem;
  color: var(--text-light);
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
  margin-bottom: 24px;
}
.slide-actions { display: flex; gap: 12px; }

/* Carousel controls */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  background: rgba(255,255,255,0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  color: var(--primary);
  font-size: 1.2rem;
  font-weight: 700;
  z-index: 10;
  transition: var(--transition);
}
.carousel-btn:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-50%) scale(1.1);
}
.carousel-btn.prev { left: 8px; }
.carousel-btn.next { right: 8px; }
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 28px;
}
.carousel-dots button {
  width: 36px;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  transition: var(--transition);
}
.carousel-dots button.active {
  background: var(--accent);
  width: 48px;
}

/* ============================================
   Industries Section
   ============================================ */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.industry-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.industry-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.industry-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.industry-card:hover::before { transform: scaleX(1); }
.industry-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  display: block;
}
.industry-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 10px;
}
.industry-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ============================================
   Company Section
   ============================================ */
.company-section {
  background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-light) 100%);
}
.company-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 56px;
}
.company-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  position: relative;
}
.company-image img { width: 100%; height: 420px; object-fit: cover; }
.company-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,37,64,0.1), transparent);
}
.company-content h3 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 20px;
}
.company-content p {
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}
.company-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.company-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border-light);
}
.company-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.company-card .fc-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}
.company-card .fc-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 6px;
}
.company-card .fc-text {
  font-size: 0.82rem;
  color: var(--text-muted);
}
/* R-NEW-12 补充：首页 teaser 卡片整卡可点，跳到 company.html 看全文（颜色与下划线由全局 a 规则负责） */
a.company-card {
  display: block;
}
.company-card .fc-more {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-light);
  transition: var(--transition);
}
a.company-card:hover .fc-more {
  color: var(--accent);
}
/* R-NEW-12 补充：技术合作文案里的合作方品牌底色（色值取自客户设计稿） */
.brand-chip {
  display: inline-block;
  padding: 0 0.3em;
  border-radius: 4px;
  color: #fff;
  font-weight: 600;
}
.brand-wenzel { background: #009ab2; }
.brand-mitutoyo { background: var(--accent); }
.certifications {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
}
.cert-badge {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 10px 24px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.cert-badge::before {
  content: '✓';
  color: var(--accent);
  font-weight: 800;
}

/* ============================================
   Clients / Logos Section
   R-UP-02-01 整改（2026-09-01）：客户案例文字列表
   ============================================ */
.clients-section { background: #fff; }

.logos-text-container {
  max-width: 1000px;
  margin: 0 auto;
}

.logos-text-title {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 12px;
}

.logos-text-subtitle {
  text-align: center;
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 36px;
}

.logos-text-group {
  margin-bottom: 32px;
}

.logos-text-group-label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border);
}

.logos-text-icon {
  font-size: 1.5rem;
}

.logos-text-group-label h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--primary-dark);
  margin: 0;
}

.logos-text-items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.logos-text-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.logos-text-item:hover {
  background: #fff;
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.logos-text-check {
  color: var(--accent);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.logos-text-customer {
  font-size: 0.92rem;
  color: var(--text-body);
  line-height: 1.5;
}

.logos-text-disclaimer {
  text-align: center;
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
  font-size: 0.78rem;
  color: var(--text-light);
  font-style: italic;
}

/* 响应式适配 */
@media (max-width: 768px) {
  .logos-text-items {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .logos-text-title {
    font-size: 1.25rem;
  }
  .logos-text-subtitle {
    font-size: 0.88rem;
  }
}

/* ============================================
   Inquiry / Contact Section
   ============================================ */
.inquiry-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  position: relative;
  overflow: hidden;
}
.inquiry-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(242,101,34,0.15), transparent 70%);
  border-radius: 50%;
}
.inquiry-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 56px;
  align-items: start;
  position: relative;
  z-index: 2;
}
.inquiry-info h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.inquiry-info p {
  color: rgba(255,255,255,0.7);
  font-size: 1.05rem;
  margin-bottom: 36px;
  line-height: 1.8;
}
.inquiry-contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  color: #fff;
}
.inquiry-contact-item .ici-icon {
  width: 48px;
  height: 48px;
  background: rgba(242,101,34,0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.inquiry-contact-item .ici-text small {
  display: block;
  color: rgba(255,255,255,0.5);
  font-size: 0.8rem;
  margin-bottom: 2px;
}
.inquiry-contact-item .ici-text strong {
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
}
/* 区域销售联系方式（在线询盘） */
.inquiry-sales {
  margin-top: 28px;
}
.inquiry-sales-title {
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}
.inquiry-contact-item .ici-text .ici-links {
  display: block;
  font-size: 0.88rem;
  margin-top: 2px;
}
.inquiry-contact-item .ici-text .ici-links a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  transition: color 0.2s;
}
.inquiry-contact-item .ici-text .ici-links a:hover {
  color: #f26522;
}
.inquiry-form {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-xl);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-body);
  margin-bottom: 8px;
}
.form-group label .required { color: var(--accent); }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--text-body);
  transition: var(--transition);
  background: var(--bg-light);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(242,101,34,0.1);
}
.form-group textarea { resize: vertical; min-height: 100px; }
/* R-UP-02-02 整改（2026-09-02）：复选框不应继承 .form-group input 的 width:100% / padding / 边框等样式，
   否则会把同行文本挤出表单外（导致隐私勾选文案溢出）。 */
.form-group input[type="checkbox"],
.form-group input[type="radio"] {
  width: auto;
  min-width: 16px;
  height: 16px;
  padding: 0;
  margin: 0;
  border: 1.5px solid var(--border);
  border-radius: 3px;
  background: var(--bg-light);
  cursor: pointer;
  accent-color: var(--accent);
  flex-shrink: 0;
}
.form-group input[type="checkbox"]:focus,
.form-group input[type="radio"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(242,101,34,0.15);
}
/* R-UP-02-02 整改（2026-09-02）：隐私 / 同意勾选行布局（询盘表单 + 后台表单通用）。 */
.form-group label.consent-label {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  cursor: pointer;
  font-weight: 400;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}
.form-group label.consent-label > span {
  flex: 1 1 auto;
  min-width: 0;
  word-break: break-word;
  overflow-wrap: anywhere;
}
.form-group label.consent-label > span a {
  color: var(--accent);
  text-decoration: underline;
}
.form-group .consent-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-top: 6px;
  padding-left: 24px;
}
.form-submit { width: 100%; margin-top: 8px; }

/* R-NEW-01：地址一致性校验提示 */
.admin-warning {
  margin-top: 8px;
  padding: 12px 16px;
  background: #fff3cd;
  border-left: 4px solid #ffc107;
  color: #856404;
  border-radius: 4px;
  font-size: 13px;
  line-height: 1.6;
}
.admin-warning code {
  background: #fff;
  padding: 1px 6px;
  border-radius: 3px;
  font-family: monospace;
  margin-right: 4px;
}
.admin-warning small {
  display: block;
  margin-top: 6px;
  font-size: 12px;
}
.form-tip {
  display: block;
  color: #856404;
  font-size: 12px;
  margin-top: 4px;
}

/* R-NEW-02（2026-09-XX）：管理后台绝对化用语预警样式（严重度分级）
   使用 [data-r-new="02"] 属性选择器隔离 R-NEW-01 现有样式，避免 UI 冲突 */
.admin-warning[data-r-new="02"] {
  border-left-color: #ff9800;
  background: #fff8e1;
  color: #5d4037;
}
.admin-warning[data-r-new="02"] .admin-warning-header {
  font-weight: 600;
  margin-bottom: 6px;
  color: #e65100;
}
.admin-warning[data-r-new="02"] ul {
  margin: 6px 0;
  padding-left: 20px;
  list-style: disc;
}
.admin-warning[data-r-new="02"] li {
  margin: 4px 0;
}
.admin-warning[data-r-new="02"] li.severity-critical {
  color: #b71c1c;
  font-weight: 600;
}
.admin-warning[data-r-new="02"] li.severity-high {
  color: #d84315;
}
.admin-warning[data-r-new="02"] li.severity-medium {
  color: #ef6c00;
}
.admin-warning[data-r-new="02"] .admin-warning-tip {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed #ffcc80;
  font-size: 12px;
  color: #6d4c41;
}
.form-success {
  display: none;
  background: #f0fff4;
  border: 1px solid #9ae6b4;
  color: #22543d;
  padding: 16px;
  border-radius: var(--radius-sm);
  text-align: center;
  font-weight: 500;
  margin-top: 16px;
}
.form-success.show { display: block; }

/* 询盘反垃圾蜜罐：对用户与辅助技术完全隐藏 */
.hp-field {
  position: absolute !important;
  left: -9999px !important;
  top: -9999px !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

/* 询盘提交失败提示 */
.form-error {
  display: none;
  background: #fff5f5;
  border: 1px solid #feb2b2;
  color: #822727;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 0.9rem;
  margin-top: 16px;
}
.form-error.show { display: block; }

/* ============================================
   Footer
   ============================================ */
.footer {
  background: #061a2e;
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .logo { margin-bottom: 20px; }
.footer-brand .logo-img { height: 46px; }
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.55);
}
.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
}
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a {
  color: rgba(255,255,255,0.55);
  font-size: 0.9rem;
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--accent-light); padding-left: 4px; }
.footer-contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
}
.footer-contact-item .fci-icon { color: var(--accent-light); flex-shrink: 0; }
.footer-qr {
  margin-top: 16px;
  text-align: center;
}
.footer-qr img {
  width: 100px;
  height: 100px;
  border-radius: 8px;
  margin: 0 auto 8px;
}
.footer-qr p {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.45);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 10px 24px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  text-align: center;
}

/* ============================================
   Product Detail Page
   ============================================ */
.page-hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 140px 0 80px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}
.page-hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 16px;
  position: relative;
}
.page-hero p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.7);
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}
.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 20px;
  position: relative;
}
.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb .sep { color: rgba(255,255,255,0.3); }

.product-list-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.product-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}
.product-card-image {
  height: 260px;
  overflow: hidden;
  position: relative;
}
.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-card-image img { transform: scale(1.08); }
.product-card-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--accent);
  color: #fff;
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
}
.product-card-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.product-card-body h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 12px;
}
.product-card-body p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}
.product-card-features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}
.product-card-features span {
  background: var(--bg-gray);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 500;
}
.product-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}
.product-card-specs {
  font-size: 0.78rem;
  color: var(--text-light);
}

/* ============================================
   Admin Panel
   ============================================ */
.admin-body {
  background: var(--bg-light);
  min-height: 100vh;
}
.admin-login {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 24px;
}
.admin-login-box {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 48px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-xl);
}
.admin-login-box h2 {
  text-align: center;
  color: var(--primary-dark);
  margin-bottom: 8px;
  font-size: 1.6rem;
}
.admin-login-box .subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 32px;
}
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: 260px;
  background: var(--primary-dark);
  color: #fff;
  padding: 24px 0;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
}
.admin-sidebar .admin-logo {
  padding: 0 24px 24px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 16px;
}
.admin-sidebar .admin-logo h3 { color: #fff; font-size: 1.1rem; }
.admin-sidebar .admin-logo p { color: rgba(255,255,255,0.5); font-size: 0.78rem; }
.admin-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  color: rgba(255,255,255,0.7);
  font-size: 0.92rem;
  transition: var(--transition);
  border-left: 3px solid transparent;
}
.admin-nav a:hover, .admin-nav a.active {
  color: #fff;
  background: rgba(255,255,255,0.06);
  border-left-color: var(--accent);
}
.admin-main {
  flex: 1;
  margin-left: 260px;
  padding: 24px 32px;
}
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.admin-header h1 {
  font-size: 1.5rem;
  color: var(--primary-dark);
}
.admin-header-actions { display: flex; gap: 12px; }
.admin-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}
.admin-card h3 {
  font-size: 1.1rem;
  color: var(--primary-dark);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-light);
}
.admin-table {
  width: 100%;
  border-collapse: collapse;
}
.admin-table th {
  text-align: left;
  padding: 12px 16px;
  background: var(--bg-light);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border);
}
.admin-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.9rem;
  color: var(--text-body);
}
.admin-table tr:hover { background: var(--bg-light); }
.admin-btn {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.admin-btn-edit {
  background: rgba(26,58,92,0.08);
  color: var(--primary);
}
.admin-btn-edit:hover { background: var(--primary); color: #fff; }
.admin-btn-delete {
  background: rgba(229,62,62,0.08);
  color: #e53e3e;
}
.admin-btn-delete:hover { background: #e53e3e; color: #fff; }
.admin-btn-add {
  background: var(--accent);
  color: #fff;
  padding: 10px 20px;
}
.admin-btn-add:hover { background: var(--accent-dark); }
.admin-btn-save {
  background: var(--primary);
  color: #fff;
  padding: 10px 24px;
}
.admin-btn-save:hover { background: var(--primary-dark); }
.admin-form-group { margin-bottom: 18px; }
.admin-form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-body);
  margin-bottom: 6px;
}
.admin-form-group input,
.admin-form-group textarea,
.admin-form-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  transition: var(--transition);
}
.admin-form-group input:focus,
.admin-form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(242,101,34,0.1);
}
.admin-form-group textarea { resize: vertical; min-height: 80px; }
.lang-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--border);
}
.lang-tabs button {
  padding: 8px 20px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
}
.lang-tabs button.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.toast {
  position: fixed;
  top: 24px;
  right: 24px;
  background: var(--primary-dark);
  color: #fff;
  padding: 14px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  transform: translateX(120%);
  transition: transform 0.3s ease;
  font-size: 0.9rem;
}
.toast.show { transform: translateX(0); }
.toast.success { background: #22543d; }
.toast.error { background: #742a2a; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .hero-title { font-size: 2.8rem; }
  .carousel-slide { grid-template-columns: 1fr; }
  .carousel-slide .slide-image { height: 300px; }
  .carousel-slide .slide-content { padding: 36px 28px; }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .company-grid { grid-template-columns: 1fr; gap: 32px; }
  .company-image img { height: 320px; }
  .inquiry-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  /* R-UP-02-01 整改：删除 .logos-grid 响应式（已替换为 .logos-text-*） */
  .product-list-grid { grid-template-columns: 1fr; }
  .admin-sidebar { width: 220px; }
  .admin-main { margin-left: 220px; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-title { font-size: 1.75rem; }
  .header-inner { height: 64px; }
  .logo-img { height: 36px; }
  .footer-brand .logo-img { height: 40px; }
  .top-bar { display: none; }
  .nav-desktop { display: none; }
  .menu-toggle { display: flex; }
  .nav-mobile { display: flex; top: 64px; }
  .hero { padding-top: 64px; min-height: auto; padding-bottom: 60px; }
  .hero-title { font-size: 2.2rem; }
  .hero-subtitle { font-size: 1rem; }
  .hero-stats { gap: 24px; margin-top: 40px; }
  .hero-stat .value { font-size: 1.8rem; }
  .hero-patents-btn { font-size: 0.78rem; padding: 6px 18px; }
  .patents-modal-content { padding: 22px 18px; max-height: 92vh; }
  .patents-modal-table { font-size: 0.82rem; }
  .patents-modal-table thead th,
  .patents-modal-table tbody td { padding: 8px 10px; }
  .carousel-slide .slide-image { height: 240px; }
  .carousel-slide .slide-content { padding: 28px 20px; }
  .slide-title { font-size: 1.4rem; }
  .carousel-btn { width: 40px; height: 40px; font-size: 1rem; }
  .industries-grid { grid-template-columns: 1fr; }
  .company-cards { grid-template-columns: 1fr; }
  /* R-UP-02-01 整改：删除 .logos-grid / .logo-item 响应式（已替换为 .logos-text-*） */
  .inquiry-form { padding: 28px 20px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .page-hero { padding: 120px 0 56px; }
  .page-hero h1 { font-size: 2rem; }
  .product-card-image { height: 200px; }
  .admin-sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }
  .admin-sidebar.open { transform: translateX(0); }
  .admin-main { margin-left: 0; padding: 16px; }
  .admin-header { flex-direction: column; gap: 12px; align-items: flex-start; }
  .certifications { gap: 10px; }
  .cert-badge { padding: 8px 16px; font-size: 0.8rem; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.8rem; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  /* R-UP-02-01 整改：删除 .logos-grid 响应式（已替换为 .logos-text-*） */
  .carousel-dots button { width: 24px; }
  .carousel-dots button.active { width: 32px; }
}

/* Utility */
.text-center { text-align: center; }
.mt-2 { margin-top: 16px; }
.mt-4 { margin-top: 32px; }
.mb-2 { margin-bottom: 16px; }
.hidden { display: none !important; }