/* ========================================
   锐向科技 - 企业官网全站样式
   主色：工业深蓝 #0A2540
   强调：精密橙 #FF6B35
   中性：银灰体系
   ======================================== */

:root {
  --color-primary: #0A2540;
  --color-primary-light: #1A3A5C;
  --color-primary-dark: #061A2E;
  --color-accent: #FF6B35;
  --color-accent-light: #FF8A5C;
  --color-accent-dark: #E55A2B;
  --color-text: #1A2B3C;
  --color-text-secondary: #5A6B7C;
  --color-text-light: #8A9BAB;
  --color-bg: #FFFFFF;
  --color-bg-light: #F5F7FA;
  --color-bg-dark: #0A2540;
  --color-border: #E2E8F0;
  --color-border-light: #EDF2F7;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --shadow-sm: 0 1px 3px rgba(10, 37, 64, 0.08);
  --shadow-md: 0 4px 12px rgba(10, 37, 64, 0.1);
  --shadow-lg: 0 12px 32px rgba(10, 37, 64, 0.12);
  --shadow-xl: 0 24px 48px rgba(10, 37, 64, 0.16);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --container-max: 1280px;
  --nav-height: 80px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-accent); }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

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

.section {
  padding: 100px 0;
}

.section-gray {
  background: var(--color-bg-light);
}

.section-dark {
  background: var(--color-primary-dark);
  color: #fff;
}

/* ============ 签名元素：微米刻度线 ============ */
.micron-rule {
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--color-accent) 10%,
    var(--color-accent) 12%,
    transparent 12%,
    transparent 20%,
    var(--color-border) 20%,
    var(--color-border) 21%,
    transparent 21%,
    transparent 30%,
    var(--color-border) 30%,
    var(--color-border) 31%,
    transparent 31%,
    transparent 40%,
    var(--color-border) 40%,
    var(--color-border) 41%,
    transparent 41%,
    transparent 50%,
    var(--color-accent) 50%,
    var(--color-accent) 52%,
    transparent 52%,
    transparent 60%,
    var(--color-border) 60%,
    var(--color-border) 61%,
    transparent 61%,
    transparent 70%,
    var(--color-border) 70%,
    var(--color-border) 71%,
    transparent 71%,
    transparent 80%,
    var(--color-border) 80%,
    var(--color-border) 81%,
    transparent 81%,
    transparent 90%,
    var(--color-accent) 90%,
    var(--color-accent) 92%,
    transparent 92%,
    transparent 100%
  );
}

.micron-rule-v {
  width: 1px;
  background: linear-gradient(180deg,
    var(--color-accent) 0%,
    var(--color-accent) 8%,
    transparent 8%,
    transparent 20%,
    var(--color-border) 20%,
    var(--color-border) 22%,
    transparent 22%,
    transparent 40%,
    var(--color-border) 40%,
    var(--color-border) 42%,
    transparent 42%,
    transparent 50%,
    var(--color-accent) 50%,
    var(--color-accent) 52%,
    transparent 52%,
    transparent 60%,
    var(--color-border) 60%,
    var(--color-border) 62%,
    transparent 62%,
    transparent 80%,
    var(--color-border) 80%,
    var(--color-border) 82%,
    transparent 82%,
    transparent 100%
  );
}

/* ============ 顶部导航 ============ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: all var(--transition-base);
  background: rgba(255, 255, 255, 0);
  backdrop-filter: blur(0);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  height: 68px;
}

.navbar.dark-nav {
  color: #fff;
}

.navbar.dark-nav.scrolled {
  color: var(--color-text);
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-inner-wide {
  max-width: 1440px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.5px;
  flex-shrink: 0;
  margin-right: 24px;
}

.nav-logo img {
  height: 44px !important;
  width: auto !important;
  max-width: none;
  display: block;
}

.navbar.scrolled .nav-logo img {
  height: 38px !important;
}

.nav-logo-mark {
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  font-size: 18px;
  position: relative;
}

.nav-logo-mark::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 6px;
  right: 6px;
  height: 2px;
  background: rgba(255,255,255,0.6);
  border-radius: 1px;
}

.nav-logo-text span {
  color: var(--color-accent);
}

.navbar.dark-nav:not(.scrolled) .nav-logo-text {
  color: #fff;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-link {
  display: flex;
  align-items: center;
  height: 44px;
  padding: 0 18px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  transition: color var(--transition-fast);
  position: relative;
  white-space: nowrap;
}

.nav-link.active::after,
.nav-link:hover::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 18px;
  right: 18px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.3;
  white-space: nowrap;
}

.navbar.dark-nav:not(.scrolled) .nav-phone {
  color: rgba(255,255,255,0.9);
}

.nav-phone-content {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.nav-phone-icon {
  width: 36px;
  height: 36px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.nav-email {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.3;
  white-space: nowrap;
}

.navbar.dark-nav:not(.scrolled) .nav-email {
  color: rgba(255,255,255,0.9);
}

.nav-email-icon {
  width: 36px;
  height: 36px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.nav-contact-stack {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* ---------- 全站搜索框 ---------- */
.nav-search {
  position: relative;
  flex: 0 0 280px;
  margin: 0 8px;
}

.nav-search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 12px;
  background: rgba(255,255,255,0.9);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 999px;
  transition: all var(--transition-base);
}

.nav-search-box:focus-within {
  background: #fff;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255,138,76,0.15);
}

.navbar.dark-nav:not(.scrolled) .nav-search-box {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.2);
  color: #fff;
}

.navbar.dark-nav:not(.scrolled) .nav-search-box:focus-within {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.5);
}

.nav-search-icon {
  color: var(--color-text-light);
  flex-shrink: 0;
}

.navbar.dark-nav:not(.scrolled) .nav-search-icon {
  color: rgba(255,255,255,0.8);
}

.nav-search input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  color: var(--color-text);
  font-family: inherit;
  min-width: 0;
}

.navbar.dark-nav:not(.scrolled) .nav-search input {
  color: #fff;
}

.nav-search input::placeholder {
  color: var(--color-text-light);
  opacity: 0.8;
}

.navbar.dark-nav:not(.scrolled) .nav-search input::placeholder {
  color: rgba(255,255,255,0.6);
}

.nav-search-hint {
  font-size: 12px;
  color: var(--color-text-light);
  opacity: 0.6;
  flex-shrink: 0;
}

.navbar.dark-nav:not(.scrolled) .nav-search-hint {
  color: rgba(255,255,255,0.6);
}

/* 搜索结果下拉 */
.nav-search-results {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.12);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all 0.2s ease;
  z-index: 1001;
  max-height: 480px;
  overflow-y: auto;
}

.nav-search-results.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.search-empty {
  padding: 28px 20px;
  text-align: center;
  color: var(--color-text-light);
  font-size: 14px;
}

.search-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  text-decoration: none;
  color: var(--color-text);
  transition: background 0.15s;
  border-bottom: 1px solid rgba(0,0,0,0.04);
}

.search-item:hover {
  background: rgba(255,138,76,0.06);
}

.search-item-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(255,138,76,0.1);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.search-item-body {
  flex: 1;
  min-width: 0;
}

.search-item-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-item-desc {
  font-size: 12px;
  color: var(--color-text-light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-item-cat {
  font-size: 11px;
  color: var(--color-accent);
  background: rgba(255,138,76,0.1);
  padding: 3px 8px;
  border-radius: 6px;
  flex-shrink: 0;
  font-weight: 500;
}

.search-item-cat.cat-product {
  color: #1F8A5B;
  background: rgba(31,138,91,0.1);
}

.search-item-cat.cat-news {
  color: #E67E22;
  background: rgba(230,126,34,0.1);
}

.search-item-cat.cat-industry {
  color: #2A6FDB;
  background: rgba(42,111,219,0.1);
}

.search-item-cat.cat-page {
  color: #8E44AD;
  background: rgba(142,68,173,0.1);
}

.search-footer {
  padding: 10px 16px;
  font-size: 12px;
  color: var(--color-text-light);
  background: rgba(0,0,0,0.02);
  text-align: right;
}

.nav-search-results mark {
  background: transparent;
  color: var(--color-accent);
  font-weight: 600;
  padding: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
  border: 1.5px solid transparent;
}

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

.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.35);
}

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

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

.navbar.dark-nav:not(.scrolled) .btn-outline {
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}

.navbar.dark-nav:not(.scrolled) .btn-outline:hover {
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

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

.btn-white:hover {
  background: var(--color-bg-light);
  color: var(--color-primary);
}

.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
  color: #fff;
}

/* 移动端菜单按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: currentColor;
  transition: all var(--transition-fast);
}

.navbar.dark-nav:not(.scrolled) .nav-toggle span {
  background: #fff;
}

/* ============ 页脚 ============ */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 36px;
  margin-bottom: 40px;
  align-items: start;
}

.footer-brand h3 {
  color: #fff;
  font-size: 20px;
  margin-bottom: 12px;
  margin-top: 0;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 18px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 14px;
  line-height: 1.5;
}

.footer-contact-item svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 16px;
  margin-top: 0;
  font-weight: 600;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  font-size: 14px;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-qr {
  text-align: left;
}

.footer-qr > div:first-of-type {
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  flex-wrap: wrap;
}

.footer-qr-box {
  width: 120px;
  height: 120px;
  background: #fff;
  border-radius: var(--radius-md);
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
}

.footer-qr p {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

/* ============ Hero 轮播 ============ */
.hero {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: #f5f5f5;
  /* 轮播图从导航栏正下方开始，完全不重叠 */
  margin-top: var(--nav-height);
}

.hero-slider {
  position: relative;
  width: 100%;
  /* 1920:600 比例 = 31.25%，保证高度自适应且所有slide有统一容器高度 */
  aspect-ratio: 1920 / 600;
  max-height: calc(100vh - var(--nav-height));
  overflow: hidden;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transform: translateX(100%) scale(1.05);
  transition: transform 0.6s ease-in-out, opacity 0.6s ease-in-out, visibility 0.6s ease-in-out;
  z-index: 1;
}

/* 当前显示 */
.hero-slide.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(0) scale(1);
  z-index: 2;
}

/* 向左滑出（下一张时，旧图往左走） */
.hero-slide.slide-out-left {
  opacity: 0;
  visibility: hidden;
  transform: translateX(-100%) scale(0.98);
  z-index: 1;
}

/* 从右滑入（下一张时，新图从右边进来） */
.hero-slide.slide-in-right {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(0) scale(1);
  z-index: 2;
}

/* 向右滑出（上一张时，旧图往右走） */
.hero-slide.slide-out-right {
  opacity: 0;
  visibility: hidden;
  transform: translateX(100%) scale(0.98);
  z-index: 1;
}

/* 从左滑入（上一张时，新图从左边进来） */
.hero-slide.slide-in-left {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(0) scale(1);
  z-index: 2;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  will-change: transform;
}

.hero-slide-hotspot {
  position: absolute;
  display: block;
  z-index: 5;
  cursor: pointer;
  text-decoration: none;
}
.hero-slide-hotspot:hover {
  opacity: 0.85;
}
/* 陶瓷化纤刀片轮播图 - 左侧橙色按钮位置 */
.hero-hotspot-ceramic {
  left: 12%;
  bottom: 18%;
  width: 20%;
  height: 10%;
  min-width: 160px;
  min-height: 44px;
}

/* 左右箭头 */
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 20;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: rgba(0, 0, 0, 0.35);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s ease, transform 0.3s ease;
  padding: 0;
}

.hero-arrow:hover {
  background: rgba(0, 0, 0, 0.6);
  transform: translateY(-50%) scale(1.08);
}

.hero-arrow-prev { left: 24px; }
.hero-arrow-next { right: 24px; }

@media (max-width: 768px) {
  .hero-arrow { width: 36px; height: 36px; }
  .hero-arrow-prev { left: 10px; }
  .hero-arrow-next { right: 10px; }
  .hero-arrow svg { width: 18px; height: 18px; }
}

/* 指示点 */
.hero-dots {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 10px;
}

.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.5);
  background: rgba(0,0,0,0.3);
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 0;
}

.hero-dot.active {
  background: #fff;
  width: 32px;
  border-radius: 6px;
  border-color: #fff;
}

/* ============ 页面标题区（内页） ============ */
.page-hero {
  position: relative;
  padding: 180px 0 100px;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: #fff;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at right center, rgba(255,107,53,0.15) 0%, transparent 60%);
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(180deg, transparent, var(--color-bg-light));
}

.page-hero-inner {
  position: relative;
  z-index: 1;
}

.page-hero-crumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 20px;
}

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

.page-hero h1 {
  font-size: 44px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.page-hero-desc {
  font-size: 18px;
  color: rgba(255,255,255,0.8);
  max-width: 680px;
  line-height: 1.7;
}

/* 产品页 Banner 面包屑顶置 */
.page-hero-products {
  position: relative;
}

.page-hero-products::after {
  display: none;
}

.page-hero-products .container {
  height: 100%;
}

.page-hero-crumb-top {
  position: absolute;
  top: 24px;
  left: 24px;
  z-index: 10;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 999px;
  font-size: 13px;
  color: #fff;
  margin: 0;
  line-height: 1;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.page-hero-crumb-top a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
}

.page-hero-crumb-top a:hover {
  color: #fff;
}

.page-hero-crumb-top span {
  color: rgba(255,255,255,0.6);
}

/* ============ 通用 Section 标题 ============ */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header-left {
  text-align: left;
  margin-bottom: 48px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.section-eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--color-accent);
}

.section-title {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text);
  letter-spacing: -0.3px;
  margin-bottom: 16px;
}

.section-dark .section-title {
  color: #fff;
}

.section-subtitle {
  font-size: 17px;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-header-left .section-subtitle {
  margin: 0;
}

.section-dark .section-subtitle {
  color: rgba(255,255,255,0.7);
}

/* ============ 数据卡片 ============ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  background: #fff;
  padding: 36px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.stat-card:hover::before {
  transform: scaleX(1);
}

.stat-number {
  font-size: 44px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 12px;
}

.stat-number .unit {
  font-size: 20px;
  color: var(--color-accent);
  font-weight: 600;
}

.stat-label {
  font-size: 15px;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.stat-desc {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 8px;
}

/* ============ 产品卡片 ============ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.product-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
  position: relative;
  cursor: pointer;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.product-img {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--color-bg-light);
}

.product-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.product-card:hover .product-img img {
  transform: scale(1.08);
}

.product-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 4px 12px;
  background: var(--color-accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border-radius: 100px;
  z-index: 1;
}

.product-badge.new { background: var(--color-success); }
.product-badge.hot { background: var(--color-accent); }
.product-badge.custom { background: var(--color-primary); }

.product-actions-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,37,64,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  opacity: 0;
  transition: opacity var(--transition-base);
  backdrop-filter: blur(4px);
}

.product-card:hover .product-actions-overlay {
  opacity: 1;
}

.product-info {
  padding: 24px;
}

.product-cat {
  font-size: 12px;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.product-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
  line-height: 1.4;
}

.product-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  margin-bottom: 0;
}

.product-spec {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.product-spec-label {
  font-size: 11px;
  color: var(--color-text-light);
}

.product-spec-value {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
}

.product-applications {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border-light);
}

.product-tag {
  padding: 4px 10px;
  background: var(--color-bg-light);
  color: var(--color-text-secondary);
  font-size: 12px;
  border-radius: 4px;
  font-weight: 500;
}

/* ============ 应用领域 ============ */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.industry-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
}

.industry-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.industry-card:hover img {
  transform: scale(1.08);
}

.industry-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,37,64,0.1) 0%, rgba(10,37,64,0.85) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px;
  color: #fff;
  transition: background var(--transition-base);
}

.industry-card:hover .industry-overlay {
  background: linear-gradient(180deg, rgba(255,107,53,0.2) 0%, rgba(10,37,64,0.92) 100%);
}

.industry-icon {
  width: 48px;
  height: 48px;
  background: rgba(255,107,53,0.2);
  border: 1px solid rgba(255,107,53,0.4);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--color-accent);
}

.industry-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.industry-card p {
  font-size: 14px;
  color: rgba(255,255,255,0.8);
  line-height: 1.6;
}

.industry-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition-base);
}

.industry-card:hover .industry-link {
  opacity: 1;
  transform: translateY(0);
}

/* ============ 信任背书 ============ */
.trust-section {
  padding: 80px 0;
  background: var(--color-bg-light);
}

.trust-logos {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  align-items: center;
  margin-top: 40px;
}

.trust-logo {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-weight: 700;
  color: var(--color-text-secondary);
  font-size: 15px;
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-fast);
}

.trust-logo:hover {
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.factory-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
}

.factory-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}

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

.factory-img.main { grid-row: span 2; }

/* 工厂实景堆叠式轮播 */
.factory-stack {
  margin-top: 32px;
}
.factory-stack-viewport {
  position: relative;
  height: 400px;
  width: 100%;
  background: #fafafa;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
}
.factory-stack-card {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 48%;
  height: 100%;
  transform: translate(-50%, -50%);
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1),
              opacity 0.6s ease,
              z-index 0s;
  -webkit-transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1),
              opacity 0.6s ease,
              z-index 0s;
  will-change: transform, opacity;
  background: #fafafa;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: auto;
}
.factory-stack-card img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  -o-object-fit: contain;
  display: block;
  pointer-events: none;
  -webkit-user-drag: none;
  user-select: none;
  background: #fafafa;
}

.cert-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.cert-item {
  text-align: center;
  padding: 28px 20px;
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-fast);
}

.cert-item:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.cert-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  color: var(--color-accent);
}

.cert-item h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.cert-item p {
  font-size: 12px;
  color: var(--color-text-light);
}

/* ============ CTA Banner ============ */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,107,53,0.2) 0%, transparent 60%);
  border-radius: 50%;
}

.cta-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}

.cta-text h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
}

.cta-text p {
  font-size: 16px;
  color: rgba(255,255,255,0.8);
}

.cta-phone {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cta-phone-number {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.35;
  white-space: nowrap;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cta-phone-label {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 1px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============ 两列布局 ============ */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.two-col.reverse .col-img { order: 2; }

.col-img {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

.col-img-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  padding: 16px 24px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 16px;
}

.col-img-badge-num {
  font-size: 36px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}

.col-img-badge-text {
  font-size: 14px;
  color: var(--color-text);
  font-weight: 500;
  line-height: 1.4;
}

.col-content h2 {
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.3;
}

.col-content > p {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.feature-item {
  display: flex;
  gap: 16px;
}

.feature-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: rgba(255,107,53,0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.feature-item h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
}

.feature-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ============ 时间轴 ============ */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-bottom: 36px;
}

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

.timeline-dot {
  position: absolute;
  left: -40px;
  top: 4px;
  width: 18px;
  height: 18px;
  background: #fff;
  border: 3px solid var(--color-accent);
  border-radius: 50%;
  z-index: 1;
}

.timeline-year {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.timeline-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}

.timeline-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============ 服务流程 ============ */
.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
}

.process-step {
  text-align: center;
  padding: 36px 20px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
  position: relative;
}

.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.step-num {
  width: 48px;
  height: 48px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  margin: 0 auto 16px;
}

.process-step h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ============ 侧边分类导航 ============ */
.page-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  padding: 60px 0 100px;
}

.sidebar-nav {
  position: sticky;
  top: 100px;
  align-self: flex-start;
}

.sidebar-nav-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--color-primary);
}

.sidebar-nav-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-nav-item {
  padding: 14px 20px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-nav-item:hover {
  background: var(--color-bg-light);
  color: var(--color-primary);
}

.sidebar-nav-item.active {
  background: var(--color-primary);
  color: #fff;
}

.sidebar-nav-item.active .sidebar-nav-count {
  background: rgba(255,255,255,0.2);
  color: #fff;
}

.sidebar-nav-count {
  padding: 2px 8px;
  background: var(--color-bg-light);
  color: var(--color-text-light);
  font-size: 12px;
  border-radius: 100px;
  font-weight: 600;
}

.sidebar-contact-card {
  margin-top: 32px;
  padding: 24px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-lg);
  color: #fff;
}

.sidebar-contact-card h4 {
  font-size: 16px;
  margin-bottom: 12px;
  font-weight: 600;
}

.sidebar-contact-card .phone {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.sidebar-contact-card p {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 16px;
}

/* ============ 筛选区 ============ */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
  padding: 20px 24px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.filter-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}

.filter-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-chip {
  padding: 6px 16px;
  font-size: 13px;
  border-radius: 100px;
  background: var(--color-bg-light);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-weight: 500;
}

.filter-chip:hover {
  background: rgba(255,107,53,0.1);
  color: var(--color-accent);
}

.filter-chip.active {
  background: var(--color-accent);
  color: #fff;
}

/* ============ 产品详情 ============ */
.product-detail-gallery {
  display: grid;
  grid-template-columns: 1fr 120px;
  gap: 16px;
}

.gallery-main {
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-light);
}

.gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 24px;
}

.gallery-thumbs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  align-content: start;
}

.gallery-thumb {
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
}

.gallery-thumb:hover,
.gallery-thumb.active {
  border-color: var(--color-accent);
}

.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 8px;
}

.product-detail-info h1 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 8px;
}

.product-detail-model {
  font-size: 16px;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.product-detail-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.highlight-tag {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: rgba(16,185,129,0.1);
  color: var(--color-success);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.product-detail-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 28px;
}

.product-detail-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.product-detail-contact {
  padding: 20px 24px;
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 16px;
}

.product-detail-contact .icon {
  width: 44px;
  height: 44px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.product-detail-contact .label {
  font-size: 13px;
  color: var(--color-text-light);
}

.product-detail-contact .number {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-primary);
}

/* 参数表 */
.params-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
}

.params-table th,
.params-table td {
  padding: 14px 20px;
  text-align: left;
  border-bottom: 1px solid var(--color-border-light);
  font-size: 14px;
}

.params-table th {
  background: var(--color-bg-light);
  font-weight: 600;
  color: var(--color-text-secondary);
  width: 180px;
}

.params-table td {
  color: var(--color-text);
  font-weight: 500;
}

/* 详情 Tabs */
.detail-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--color-border-light);
  margin-bottom: 32px;
}

.detail-tab {
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-secondary);
  cursor: pointer;
  position: relative;
  transition: all var(--transition-fast);
}

.detail-tab:hover {
  color: var(--color-primary);
}

.detail-tab.active {
  color: var(--color-accent);
}

.detail-tab.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}

/* 优势列表 */
.advantage-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.advantage-item {
  display: flex;
  gap: 16px;
  padding: 24px;
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
}

.advantage-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: rgba(255,107,53,0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.advantage-item h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.advantage-item p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ============ 应用领域行业详情 ============ */
.industry-detail {
  margin-bottom: 80px;
}

.industry-detail:last-child {
  margin-bottom: 0;
}

.industry-detail-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--color-border-light);
}

.industry-detail-icon {
  width: 64px;
  height: 64px;
  background: rgba(255,107,53,0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.industry-detail-header h2 {
  font-size: 28px;
  font-weight: 800;
}

.industry-detail-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.industry-detail-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
}

.industry-detail-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.industry-info-block {
  margin-bottom: 28px;
}

.industry-info-block:last-child {
  margin-bottom: 0;
}

.industry-info-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--color-text);
}

.industry-info-title .dot {
  width: 4px;
  height: 20px;
  background: var(--color-accent);
  border-radius: 2px;
}

.pain-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pain-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.pain-item::before {
  content: '×';
  color: #EF4444;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.solution-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.solution-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
}

.solution-item::before {
  content: '✓';
  color: var(--color-success);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.effect-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.effect-stat {
  padding: 20px;
  background: linear-gradient(135deg, rgba(255,107,53,0.1) 0%, rgba(255,107,53,0.05) 100%);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,107,53,0.2);
}

.effect-stat-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 6px;
}

.effect-stat-label {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ============ 服务板块 ============ */
.service-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.service-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
  display: flex;
  gap: 28px;
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: transparent;
  transform: translateY(-4px);
}

.service-card-icon {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.service-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-card > div > p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.service-card-features {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.service-card-feature {
  padding: 6px 14px;
  background: var(--color-bg-light);
  color: var(--color-text);
  font-size: 13px;
  border-radius: 4px;
  font-weight: 500;
}

/* ============ 新闻列表 ============ */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.news-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.news-img {
  aspect-ratio: 16/10;
  overflow: hidden;
}

.news-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.news-card:hover .news-img img {
  transform: scale(1.05);
}

.news-content {
  padding: 24px;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--color-text-light);
}

.news-category {
  padding: 2px 10px;
  background: rgba(255,107,53,0.1);
  color: var(--color-accent);
  font-weight: 600;
  border-radius: 4px;
  font-size: 12px;
}

.news-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-excerpt {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}

.news-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* 新闻详情 */
.article-header {
  text-align: center;
  margin-bottom: 48px;
}

.article-header h1 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.3;
}

.article-meta {
  display: flex;
  justify-content: center;
  gap: 24px;
  font-size: 14px;
  color: var(--color-text-light);
}

.article-content {
  max-width: 800px;
  margin: 0 auto 64px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text);
}

.article-content p {
  margin-bottom: 24px;
}

.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 40px 0 20px;
}

.article-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 32px 0 16px;
}

.article-content img {
  border-radius: var(--radius-lg);
  margin: 24px 0;
}

.article-content blockquote {
  border-left: 4px solid var(--color-accent);
  padding: 16px 24px;
  background: var(--color-bg-light);
  margin: 24px 0;
  font-style: italic;
  color: var(--color-text-secondary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.related-news {
  padding-top: 48px;
  border-top: 1px solid var(--color-border);
}

.related-news h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 32px;
}

/* ============ 联系页面 ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
}

.contact-info-block {
  margin-bottom: 40px;
}

.contact-info-block:last-child {
  margin-bottom: 0;
}

.contact-info-block h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.contact-info-block h3::before {
  content: '';
  width: 4px;
  height: 24px;
  background: var(--color-accent);
  border-radius: 2px;
}

.contact-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border-light);
}

.contact-item:last-child {
  border-bottom: none;
}

.contact-item-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: rgba(255,107,53,0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.contact-item-label {
  font-size: 13px;
  color: var(--color-text-light);
  margin-bottom: 4px;
}

.contact-item-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}

.qr-code-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px;
  background: var(--color-bg-light);
  border-radius: var(--radius-lg);
  margin-top: 24px;
}

.qr-code {
  width: 140px;
  height: 140px;
  background: #fff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}

.qr-code-box p {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  text-align: center;
}

.qr-code-box small {
  font-size: 12px;
  color: var(--color-text-light);
  margin-top: 4px;
}

/* 表单 */
.contact-form {
  background: #fff;
  padding: 48px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.contact-form h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 8px;
}

.contact-form .form-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.form-label .required {
  color: #EF4444;
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: inherit;
  transition: all var(--transition-fast);
  color: var(--color-text);
  background: #fff;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255,107,53,0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.file-upload {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--color-bg-light);
}

.file-upload:hover {
  border-color: var(--color-accent);
  background: rgba(255,107,53,0.05);
}

.file-upload-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto 12px;
  color: var(--color-text-light);
}

.file-upload p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

.file-upload span {
  font-size: 12px;
  color: var(--color-text-light);
}

.form-submit {
  margin-top: 24px;
}

.form-submit .btn {
  width: 100%;
}

.form-note {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 12px;
  text-align: center;
}

/* FAQ */
.faq-section {
  padding: 80px 0;
  background: var(--color-bg-light);
}

.faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
  border: 1px solid var(--color-border-light);
  overflow: hidden;
}

.faq-question {
  padding: 24px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-question .faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
  color: var(--color-text-light);
}

.faq-item.open .faq-question .faq-icon {
  transform: rotate(45deg);
  color: var(--color-accent);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 28px 24px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

/* 地图 */
.map-section {
  height: 400px;
  background: var(--color-bg-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 40px;
  position: relative;
}

.map-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #e8edf3 0%, #dce4ec 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.map-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10,37,64,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10,37,64,0.05) 1px, transparent 1px);
  background-size: 40px 40px;
}

.map-pin {
  position: relative;
  z-index: 1;
  text-align: center;
}

.map-pin-icon {
  width: 48px;
  height: 48px;
  background: var(--color-accent);
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(255,107,53,0.4);
}

.map-pin-icon svg {
  transform: rotate(45deg);
  color: #fff;
}

.map-pin p {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
}

/* ============ 响应式 ============ */
@media (max-width: 1280px) {
  .nav-inner-wide {
    max-width: 1200px;
  }
  .nav-link {
    padding: 0 12px;
    font-size: 14px;
  }
  .nav-search {
    flex-basis: 220px;
  }
}

@media (max-width: 1080px) {
  .nav-inner-wide {
    max-width: 100%;
  }
  .nav-search {
    flex-basis: 180px;
  }
  .nav-link {
    padding: 0 8px;
    font-size: 13px;
  }
}

@media (max-width: 1024px) {
  .hero-dots { bottom: 14px; gap: 8px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-logos { grid-template-columns: repeat(3, 1fr); }
  .cert-list { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .two-col { grid-template-columns: 1fr; gap: 40px; }
  .two-col.reverse .col-img { order: 0; }
  .service-cards { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .advantage-list { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .page-layout { grid-template-columns: 1fr; }
  .sidebar-nav { position: static; }
  .sidebar-nav-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
  }
  .sidebar-nav-item {
    padding: 10px 18px;
    font-size: 14px;
  }
  .sidebar-contact-card { display: none; }
}

@media (max-width: 768px) {
  :root { --nav-height: 64px; }
  .section { padding: 60px 0; }
  .hero-dots { bottom: 10px; gap: 6px; }
  .hero-dot { width: 10px; height: 10px; }
  .hero-dot.active { width: 24px; }
  .nav-menu, .nav-cta .nav-contact-stack, .nav-cta .btn-outline, .nav-search { display: none; }
  .nav-toggle { display: flex; }
  .page-hero { padding: 120px 0 60px; }
  .page-hero h1 { font-size: 30px; }
  .page-hero-desc { font-size: 15px; }
  .section-title { font-size: 28px; }
  .section-header { margin-bottom: 40px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stat-card { padding: 24px 16px; }
  .stat-number { font-size: 32px; }
  .products-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: 1fr; }
  .mobile-1col { grid-template-columns: 1fr !important; gap: 16px !important; }
  .trust-logos { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .trust-logo { height: 48px; font-size: 13px; }
  .factory-stack-viewport { height: 240px; border-radius: 6px; }
  .factory-stack-card { width: 60%; border-radius: 4px; }
  .cert-list { grid-template-columns: 1fr 1fr; gap: 12px; }
  .footer { padding: 56px 0 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
  .cta-inner { flex-direction: column; text-align: center; gap: 32px; }
  .cta-text h2 { font-size: 24px; }
  .cta-actions { justify-content: center; }
  .cta-phone { justify-content: center; }
  .col-content h2 { font-size: 26px; }
  .news-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .contact-form { padding: 32px 24px; }
  .contact-form h2 { font-size: 22px; }
  .industry-detail-body { grid-template-columns: 1fr; gap: 32px; }
  .product-detail-gallery { grid-template-columns: 1fr; }
  .gallery-thumbs { flex-direction: row; order: 2; }
  .gallery-thumb { flex: 1; aspect-ratio: auto; }
  .effect-stats { grid-template-columns: 1fr; }
  .service-card { flex-direction: column; padding: 28px; gap: 20px; }
  .article-header h1 { font-size: 26px; }
  .article-content { font-size: 15px; }
  .filter-bar { padding: 16px; }
  .filter-label { display: none; }
}

/* ============ 移动端菜单 ============ */
.navbar.mobile-menu-open {
  z-index: 1003 !important;
}

.nav-menu.mobile-open {
  display: flex !important;
  flex-direction: column;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: calc(100vh - var(--nav-height));
  background: #ffffff !important;
  background-color: #ffffff !important;
  padding: 24px 20px 40px;
  margin: 0;
  gap: 0;
  z-index: 1002 !important;
  overflow-y: auto;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  animation: slideDown 0.25s ease-out;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.nav-menu.mobile-open .nav-item {
  width: 100%;
  border-bottom: 1px solid var(--color-border);
  list-style: none;
  pointer-events: auto;
}

.nav-menu.mobile-open .nav-link {
  display: flex;
  width: 100%;
  padding: 18px 4px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text) !important;
  background: transparent !important;
  text-decoration: none;
}

.nav-menu.mobile-open .nav-link:hover,
.nav-menu.mobile-open .nav-link.active {
  color: var(--color-primary) !important;
}

/* 移动端菜单内的语言切换 */
.mobile-lang-switch {
  display: none;
}

.nav-menu.mobile-open .mobile-lang-switch {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-text-secondary);
  list-style: none;
}

.nav-menu.mobile-open .mobile-lang-switch button {
  background: none;
  border: 1px solid var(--color-border);
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 13px;
  cursor: pointer;
  color: var(--color-text);
}

.nav-menu.mobile-open .mobile-lang-switch button.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* 移动端遮罩层 */
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1001;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.mobile-nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* 汉堡按钮动画 */
.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============ 动画 ============ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.animate-fade-up {
  animation: fadeInUp 0.8s ease forwards;
}

.animate-delay-1 { animation-delay: 0.1s; opacity: 0; }
.animate-delay-2 { animation-delay: 0.2s; opacity: 0; }
.animate-delay-3 { animation-delay: 0.3s; opacity: 0; }
.animate-delay-4 { animation-delay: 0.4s; opacity: 0; }

/* 滚动显示动画 */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 底部固定转化栏（产品详情页） */
.fixed-conversion-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #fff;
  border-top: 1px solid var(--color-border-light);
  box-shadow: 0 -4px 20px rgba(10,37,64,0.08);
  padding: 16px 0;
  z-index: 999;
  transform: translateY(100%);
  transition: transform var(--transition-base);
}

.fixed-conversion-bar.visible {
  transform: translateY(0);
}

.fixed-bar-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.fixed-bar-product {
  display: flex;
  align-items: center;
  gap: 16px;
}

.fixed-bar-product-img {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-bg-light);
}

.fixed-bar-product-name {
  font-weight: 700;
  font-size: 15px;
}

.fixed-bar-product-model {
  font-size: 12px;
  color: var(--color-text-light);
}

.fixed-bar-actions {
  display: flex;
  gap: 12px;
}

@media (max-width: 768px) {
  .fixed-bar-product { display: none; }
  .fixed-bar-actions { flex: 1; }
  .fixed-bar-actions .btn { flex: 1; }
}

/* 移动端菜单遮罩层 */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1001;
}

.mobile-nav-overlay.active {
  display: block;
}