/* CSS Variables */
:root {
  --primary: #CA1C1D;
  --primary-dark: #A01617;
  --primary-light: #E54546;
  --dark: #0f172a;
  --dark-light: #1e293b;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --white: #ffffff;
  --transition: all 0.3s ease;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.65;
  --font-size-h1: clamp(2rem, 4vw, 3.4rem);
  --font-size-h2: clamp(1.75rem, 3vw, 2.5rem);
  --font-size-h3: clamp(1.15rem, 2vw, 1.35rem);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
  overflow-y: visible;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--gray-700);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  overflow-y: visible;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-dark {
  background-color: var(--dark);
  color: var(--white);
}

.section-black {
  background-color: #000000;
  color: var(--white);
}

.section-gray {
  background-color: var(--gray-50);
}

.section-warm {
  background-color: #FAF8F5;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-label {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: var(--font-size-h2);
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-dark .section-title {
  color: var(--white);
}

.section-black .section-title {
  color: var(--white);
}

.section-desc {
  font-size: 1.125rem;
  color: var(--gray-500);
  max-width: 600px;
  margin: 0 auto;
}

.section-dark .section-desc {
  color: var(--gray-400);
}

.section-black .section-desc {
  color: var(--gray-400);
}

/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 0.5rem;
  transition: var(--transition);
  white-space: nowrap;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background-color: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
  background-color: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.5);
}

.btn-dark {
  background-color: var(--dark);
  color: var(--white);
}

.btn-dark:hover {
  background-color: var(--gray-800);
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
  background-color: #FAF8F5;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  transition: box-shadow 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.header.scrolled {
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

.header.menu-open {
  background-color: #FAF8F5;
  border-bottom-color: rgba(15, 23, 42, 0.08);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

    /* 外层分页容器 */
    .layui-laypage {
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        flex-wrap: wrap !important;
        gap: 8px !important;
        margin: 30px 0 !important;
        padding: 0 !important;
        font-family: -apple-system, "Microsoft YaHei", sans-serif !important;
    }

    /* 普通页码 a 标签 */
    .layui-laypage a {
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
        min-width: 38px !important;
        height: 38px !important;
        padding: 0 12px !important;
        border: 1px solid #e4e7ed !important;
        border-radius: 8px !important;
        background: #ffffff !important;
        color: #606266 !important;
        font-size: 14px !important;
        font-weight: 500 !important;
        text-decoration: none !important;
        transition: all 0.25s ease !important;
        box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04) !important;
        box-sizing: border-box !important;
    }

    /* 普通页码悬停：用深红色系 */
    .layui-laypage a:hover {
        background: #fdf0f0 !important;
        color: #a01617 !important;
        border-color: #a01617 !important;
        transform: translateY(-2px) !important;
        box-shadow: 0 4px 12px rgba(160, 22, 23, 0.25) !important;
    }

    /* 当前页容器：深红色渐变 */
    .layui-laypage .layui-laypage-curr {
        position: relative !important;
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
        min-width: 38px !important;
        height: 38px !important;
        padding: 0 12px !important;
        border: 1px solid #a01617 !important;
        border-radius: 8px !important;
        background: linear-gradient(135deg, #a01617, #c22a2b) !important;
        color: #ffffff !important;
        font-size: 14px !important;
        font-weight: 600 !important;
        box-shadow: 0 4px 12px rgba(160, 22, 23, 0.35) !important;
        box-sizing: border-box !important;
    }

    /* 隐藏 Layui 默认当前页背景 em（含内联 #FF5722） */
    .layui-laypage .layui-laypage-curr .layui-laypage-em {
        display: none !important;
    }

    /* 当前页数字 em */
    .layui-laypage .layui-laypage-curr em:last-child {
        position: relative !important;
        z-index: 1 !important;
        font-style: normal !important;
        color: #ffffff !important;
    }

    /* 禁用当前页的 hover，防止盖掉选中色 */
    .layui-laypage .layui-laypage-curr:hover {
        background: linear-gradient(135deg, #a01617, #c22a2b) !important;
        color: #ffffff !important;
        border-color: #a01617 !important;
        transform: none !important;
        box-shadow: 0 4px 12px rgba(160, 22, 23, 0.35) !important;
    }








@media (max-width: 1023px) {
  .header.menu-open {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

.header.menu-open .logo {
  opacity: 0;
  visibility: hidden;
  width: 0;
  overflow: hidden;
}

.header.menu-open .header-cta {
  opacity: 0;
  visibility: hidden;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 90px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: opacity 0.3s ease, visibility 0.3s ease, width 0.3s ease;
}

.logo-icon {
  width: 100px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-text {
  color: var(--gray-900);
}

.logo-text strong {
  display: block;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.2;
}

.logo-text span {
  font-size: 0.75rem;
  color: var(--gray-600);
  letter-spacing: 0.02em;
}

.nav {
  display: none;
  flex: 1;
  justify-content: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: var(--gray-700);
  font-size: 0.9375rem;
  font-weight: 500;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--gray-900);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-cta {
  display: none;
}

.header-lang {
  display: flex;
  align-items: center;
   margin-left: auto;
  margin-right: 0.75rem;
}

/* Language dropdown */
.lang-dropdown {
  position: relative;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.35rem 0.5rem;
  border-radius: 0.375rem;
  /*color: rgba(255, 255, 255, 0.85);*/
  font-size: 0.8125rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.lang-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.lang-globe {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.lang-arrow {
  width: 14px;
  height: 14px;
  transition: transform 0.2s ease;
}

.lang-dropdown.open .lang-arrow {
  transform: rotate(180deg);
}

.header.scrolled .lang-toggle,
.header.menu-open .lang-toggle {
  color: var(--gray-700);
}

.header.scrolled .lang-toggle:hover,
.header.menu-open .lang-toggle:hover {
  background: rgba(15, 23, 42, 0.06);
}

.lang-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 140px;
  background: #fff;
  border-radius: 0.625rem;
  box-shadow: 0 8px 30px rgba(15, 23, 42, 0.14);
  border: 1px solid rgba(15, 23, 42, 0.08);
  padding: 0.375rem;
  margin: 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: all 0.2s ease;
  z-index: 1001;
}

.lang-dropdown.open .lang-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 0.5rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--gray-700);
  cursor: pointer;
  border-radius: 0.375rem;
  transition: all 0.15s ease;
}

.lang-option:hover {
  background: var(--gray-100);
  color: var(--gray-900);
}

.lang-option.active {
  color: var(--brand-red);
  font-weight: 700;
}


.mobile-menu-btn {
  color: var(--gray-900);
  padding: 0.5rem;
}

.mobile-menu-btn svg {
  width: 24px;
  height: 24px;
}

.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

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

.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  max-width: 420px;
  background: #fff;
  z-index: 1001;
  padding: 0;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

.mobile-nav.active {
  transform: translateX(0);
}

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--gray-200);
  flex-shrink: 0;
}

.mobile-nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.mobile-nav-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--primary);
  color: #fff;
  border-radius: 0.45rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
}

.mobile-nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.mobile-nav-logo-text strong {
  color: var(--gray-900);
  font-size: 0.95rem;
  font-weight: 700;
}

.mobile-nav-logo-text span {
  color: var(--gray-500);
  font-size: 0.7rem;
}

.mobile-nav-close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray-900);
  padding: 0;
}

.mobile-nav-close svg {
  width: 22px;
  height: 22px;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0.75rem 0;
  flex: 1;
  min-height: 220px;
  overflow-y: auto;
}

.mobile-nav-dropdown {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0;
}

.mobile-nav-dropdown .mobile-nav-link {
  flex: 1;
  padding-right: 0;
}

.mobile-nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-right: 0.5rem;
  border: none;
  background: transparent;
  color: var(--gray-500);
  cursor: pointer;
  border-radius: 0.5rem;
  transition: background 0.2s ease, color 0.2s ease;
}

.mobile-nav-toggle:hover {
  background: var(--gray-100);
  color: var(--primary-dark);
}

.mobile-nav-toggle .toggle-arrow {
  width: 18px;
  height: 18px;
  transition: transform 0.25s ease;
}

.mobile-nav-toggle[aria-expanded="true"] .toggle-arrow {
  transform: rotate(180deg);
}

.mobile-nav-product-panel {
  display: none;
}

.mobile-nav-product-panel.open {
  display: block;
}

.mobile-nav-product-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-nav-link {
  display: block;
  padding: 0.9rem 1.25rem;
  color: var(--gray-800);
  font-size: 1rem;
  font-weight: 500;
  border-radius: 0;
  transition: color 0.2s ease;
}

.mobile-nav-sub {
  padding: 0.25rem 1.25rem 0.75rem;
  background: var(--gray-50);
}

.mobile-nav-sub-header {
  display: block;
  padding: 0.75rem 0.9rem 0.5rem;
  color: var(--gray-800);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 0.5rem;
  text-decoration: none;
  margin-bottom: 0.15rem;
}

.mobile-nav-sub-header:hover,
.mobile-nav-sub-header.active {
  color: var(--primary-dark);
  background: rgba(202, 28, 29, 0.06);
}

.mobile-nav-sub-link {
  display: block;
  padding: 0.65rem 0.9rem 0.65rem 1.6rem;
  color: var(--gray-600);
  font-size: 0.9rem;
  border-radius: 0.5rem;
}

.mobile-nav-sub-link:hover,
.mobile-nav-sub-link.active {
  color: var(--primary-dark);
  background: rgba(202, 28, 29, 0.08);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background: none;
  color: var(--primary-dark);
}

.mobile-nav-cta {
  padding: 1.25rem;
  border-top: 1px solid var(--gray-200);
  flex-shrink: 0;
}

.mobile-nav-cta .btn {
  width: 100%;
  justify-content: center;
}

@media (max-width: 767px) {
  .mobile-nav {
    left: 0;
    right: 0;
    width: auto;
    max-width: none;
  }
}

/* Hero Swiper */
.hero {
  position: relative;
  height: calc(100vh - 90px);
  min-height: 510px;
  max-height: 810px;
  overflow: hidden;
}

.hero-swiper,
.hero-swiper .swiper-slide {
  height: 100%;
}

.hero-slide {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(15,23,42,0.7) 0%, rgba(15,23,42,0.5) 50%, rgba(15,23,42,0.8) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  width: 100%;
  max-width: 1400px;
  padding: 0 1.5rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(202, 28, 29, 0.2);
  border: 1px solid rgba(202, 28, 29, 0.3);
  color: var(--primary-light);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background-color: var(--primary);
  border-radius: 50%;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}

.hero-slide-title {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--gray-300);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.hero .swiper-button-next,
.hero .swiper-button-prev {
  color: var(--white);
  width: 48px;
  height: 48px;
  background-color: rgba(255,255,255,0.1);
  border-radius: 50%;
  backdrop-filter: blur(4px);
}

.hero .swiper-button-next:hover,
.hero .swiper-button-prev:hover {
  background-color: rgba(255,255,255,0.2);
}

.hero .swiper-button-next::after,
.hero .swiper-button-prev::after {
  font-size: 1.25rem;
}

.hero .swiper-pagination-bullet {
  background-color: rgba(255,255,255,0.5);
  opacity: 1;
  width: 10px;
  height: 10px;
}

.hero .swiper-pagination-bullet-active {
  background-color: var(--primary);
  width: 24px;
  border-radius: 5px;
}

/* Advantages */
.advantages-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.advantage-card {
  background-color: var(--dark-light);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 1rem;
  padding: 2rem;
  transition: var(--transition);
}

.advantage-card:hover {
  border-color: rgba(202, 28, 29, 0.3);
  transform: translateY(-4px);
}

.advantage-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 0.85rem;
}

.advantage-icon {
  width: 48px;
  height: 48px;
  background-color: rgba(202, 28, 29, 0.1);
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.advantage-icon svg {
  width: 24px;
  height: 24px;
}

.advantage-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--white);
}

.advantage-desc {
  font-size: 0.9375rem;
  color: var(--gray-400);
  line-height: 1.6;
}

/* Warm background adaptations */
.section-warm .advantage-card {
  background-color: var(--white);
  border-color: var(--gray-200);
  box-shadow: var(--shadow);
}

.section-warm .advantage-card:hover {
  border-color: rgba(202, 28, 29, 0.4);
}

.section-warm .advantage-title {
  color: var(--gray-900);
}

.section-warm .advantage-desc {
  color: var(--gray-600);
}

/* Products */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.product-card {
  background-color: var(--white);
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.product-image {
  position: relative;
  aspect-ratio: 16/10;
  background-color: var(--gray-100);
  overflow: hidden;
  display: block;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.product-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background-color: var(--primary);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.375rem 0.75rem;
  border-radius: 0.375rem;
}

.product-category {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.product-info {
  padding: 1.45rem 1.5rem 1.55rem;
}

.product-name {
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.product-spec {
  font-size: 0.78rem;
  color: var(--primary-dark);
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.product-desc {
  font-size: 0.93rem;
  color: var(--gray-600);
  line-height: 1.75;
  margin-bottom: 1.25rem;
  display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.products-header {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 2.5rem;
}

/* Solutions */
.solutions-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.solution-card {
  position: relative;
  border-radius: 1rem;
  overflow: hidden;
  background-color: var(--dark-light);
  border: 1px solid rgba(255,255,255,0.05);
  transition: var(--transition);
}

.solution-card:hover {
  box-shadow: 0 8px 32px rgba(202, 28, 29, 0.25);
  border-color: rgba(202, 28, 29, 0.4);
}

.solution-image {
  aspect-ratio: 16 / 6;
  overflow: hidden;
}

.solution-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.solution-content {
  padding: 1.5rem;
}

.solution-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.75rem;
}

.solution-desc {
  font-size: 0.9375rem;
  color: var(--gray-400);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.solution-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9375rem;
}

.solution-link:hover {
  gap: 0.625rem;
}

.section-warm .solution-card {
  background-color: var(--white);
  border-color: var(--gray-200);
  box-shadow: var(--shadow);
}

.section-warm .solution-title {
  color: var(--gray-900);
}

.section-warm .solution-desc {
  color: var(--gray-600);
}

.section-warm .solution-link {
  color: var(--primary-dark);
}

/* Process */
.home-process-section {
  background: #fff;
}

.home-process-section .section-header {
  margin-bottom: 3.5rem;
}

.process-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.2rem;
  position: relative;
}

.process-step {
  display: flex;
  gap: 1.5rem;
  position: relative;
}

.home-process-section .process-step {
  align-items: flex-start;
}

.process-number {
  font-size: 3rem;
  font-weight: 800;
  color: rgba(202, 28, 29, 0.25);
  line-height: 1;
  flex-shrink: 0;
  width: 60px;
}

.home-process-section .process-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 74px;
  height: 74px;
  border: 2px solid var(--primary-dark);
  border-radius: 50%;
  background: #fff;
  position: relative;
  z-index: 2;
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: 0;
  color: var(--primary-dark);
  margin-bottom: 1.35rem;
  transition: var(--transition);
}

.home-process-section .process-number:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.process-content {
  flex: 1;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--gray-200);
}

.home-process-section .process-content {
  padding-bottom: 0;
  border-bottom: 0;
}

.process-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.home-process-section .process-title {
  font-size: 1.18rem;
  font-weight: 800;
  margin-bottom: .75rem;
}

.process-desc {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.6;
}

.home-process-section .process-desc {
  font-size: .92rem;
  line-height: 1.75;
  color: var(--gray-600);
}

/* Process on dark background (testimonials/partners sections) */
.section-dark .process-number {
  color: rgba(202, 28, 29, 0.15);
}

.section-dark .process-content {
  border-bottom-color: rgba(255,255,255,0.05);
}

.section-dark .process-title {
  color: var(--white);
}

.section-dark .process-desc {
  color: var(--gray-400);
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.testimonial-card {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 1rem;
  padding: 2rem;
  transition: var(--transition);
}

.testimonial-card:hover {
  background-color: rgba(255, 255, 255, 0.18);
}

.testimonial-quote {
  font-size: 1rem;
  color: var(--gray-300);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-author {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--white);
}

/* Partners */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.partner-item {
  min-height: 96px;
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 1rem;
  padding: 1.25rem 1rem;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.partner-item:hover {
  border-color: rgba(202, 28, 29, 0.45);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.partner-item img {
  width: 90px;
  height: 90px;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.7;
  transition: var(--transition);
}

.partner-item:hover img {
  filter: grayscale(0);
  opacity: 1;
}

/* Home mini CTA */
.home-mini-cta-section {
  background: #fff;
  padding: 3.5rem 0;
}

.home-mini-cta {
  position: relative;
  overflow: hidden;
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: center;
  background: #1c1c1c;
  border-radius: .55rem;
  padding: 2.2rem 2.4rem;
  color: #fff;
}

.home-mini-cta::before,
.home-mini-cta::after {
  content: '';
  position: absolute;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: rgba(202, 28, 29, .13);
  pointer-events: none;
}

.home-mini-cta::before {
  right: -44px;
  top: -76px;
}

.home-mini-cta::after {
  left: -96px;
  bottom: -96px;
}

.home-mini-cta-content,
.home-mini-cta-actions {
  position: relative;
  z-index: 1;
}

.home-mini-cta h2 {
  color: #fff;
  font-size: 1.5rem;
  line-height: 1.35;
  margin-bottom: .7rem;
}

.home-mini-cta p {
  color: rgba(255,255,255,.62);
  font-size: .9rem;
  line-height: 1.75;
}

.home-mini-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: center;
}

.home-mini-phone {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.16);
  color: #fff;
}

.home-mini-phone:hover {
  background: rgba(255,255,255,.18);
  color: #fff;
}

/* Certifications */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 3rem;
}

.cert-item {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 0.75rem;
  padding: 1.5rem 1rem;
  text-align: center;
  transition: var(--transition);
}

.cert-item:hover {
  border-color: var(--primary);
}

.cert-code {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 0.375rem;
}

.cert-name {
  font-size: 0.75rem;
  color: var(--gray-500);
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9375rem;
  color: var(--gray-400);
}

/* CTA Section */
.cta-section {
  background-color: #FAF8F5;
  border-top: 1px solid var(--gray-200);
}

.cta-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

.cta-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.cta-desc {
  color: var(--gray-600);
  margin-bottom: 1.5rem;
}

.cta-features {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.cta-feature {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--gray-700);
  font-size: 0.9375rem;
}

.cta-feature svg {
  color: var(--primary);
  flex-shrink: 0;
}

.cta-phone {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 1rem;
}

/* CTA form on light background */
.cta-section .form-label {
  color: var(--gray-900);
}

.cta-section .form-input,
.cta-section .form-textarea,
.cta-section .form-select {
  background-color: var(--white);
  border-color: var(--gray-300);
  color: var(--gray-900);
}

.cta-section .form-input::placeholder,
.cta-section .form-textarea::placeholder {
  color: var(--gray-500);
}

.cta-section .form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2364748b' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
}

/* Form */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.form-label .required {
  color: #ef4444;
  margin-left: 0.25rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.875rem 1rem;
  background-color: var(--dark-light);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 0.5rem;
  color: var(--white);
  font-size: 0.9375rem;
  transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--gray-500);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

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

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

.form-submit {
  width: 100%;
  padding: 1rem;
  background-color: var(--primary);
  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  border-radius: 0.5rem;
  transition: var(--transition);
}

.form-submit:hover {
  background-color: var(--primary-dark);
}

/* Footer */
.footer {
  background-color: #1c1c1c;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 4.4rem 0 2.2rem;
}

.footer-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.6rem;
  padding-bottom: 3rem;
}

.footer-brand {
  max-width: 430px;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  color: #fff;
  margin-bottom: 1.25rem;
}

.footer-logo-icon {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: .55rem;
  background: var(--primary-dark);
  color: #fff;
}

.footer-logo strong {
  display: block;
  font-size: 1.08rem;
  line-height: 1.1;
  color: #fff;
}

.footer-logo small {
  display: block;
  margin-top: .15rem;
  color: var(--gray-400);
  font-size: .78rem;
  font-weight: 500;
}

.footer-brand-desc {
  font-size: .92rem;
  color: var(--gray-400);
  line-height: 1.85;
  margin-bottom: 1.4rem;
}

.footer-socials {
  display: flex;
  gap: .85rem;
}

.footer-socials a {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: .35rem;
  background: rgba(255,255,255,.09);
  color: #fff;
}

.footer-socials a:hover {
  background: var(--primary-dark);
  color: #fff;
}

.footer-heading {
  font-size: .95rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 1.2rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: .82rem;
}

.footer-link {
  font-size: .9rem;
  color: var(--gray-400);
}

.footer-link:hover {
  color: var(--primary);
}

.footer-contact-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  border-top: 1px solid rgba(255,255,255,.09);
  border-bottom: 1px solid rgba(255,255,255,.09);
  padding: 1.55rem 0;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
  margin-bottom: 0;
}

.footer-contact-icon {
  flex: 0 0 auto;
  display: inline-flex;
  color: var(--primary-dark);
  margin-top: .1rem;
}

.footer-contact-item small {
  display: block;
  color: var(--gray-500);
  font-size: .76rem;
  margin-bottom: .25rem;
}

.footer-contact-item strong {
  display: block;
  color: var(--gray-200);
  font-size: .9rem;
  font-weight: 600;
  line-height: 1.55;
}

.footer-bottom {
  padding-top: 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
}

.footer-copyright {
  font-size: .78rem;
  color: var(--gray-500);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.35rem;
}

.footer-legal a,
.footer-legal span {
  font-size: .78rem;
  color: var(--gray-500);
}

.footer-legal a:hover {
  color: var(--gray-300);
}

/* Page Header — 统一栏目图样式（背景图写在HTML的style里） */
.page-header {
  position: relative;
  overflow: hidden;
  background-color: var(--dark);
  background-size: cover;
  background-position: center;
  text-align: center;
  padding-top: 72px;
  padding-bottom: 4.2rem;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(90deg, rgba(0,0,0,.72), rgba(0,0,0,.1));
}

.page-header .container {
  position: relative;
  z-index: 1;
}

.page-header-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1rem;
}

.page-header-desc {
  font-size: 1.125rem;
  color: var(--gray-400);
  max-width: 600px;
  margin: 0 auto;
}

.page-kicker {
  display: inline-block;
  color: var(--primary-dark);
  font-size: .85rem;
  font-weight: 900;
  letter-spacing: .06em;
  margin-bottom: .8rem;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  color: var(--gray-400);
}

.breadcrumb a {
  color: var(--gray-300);
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb-separator {
  color: var(--gray-600);
}

/* News */
.news-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.news-card {
  background-color: var(--white);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}

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

.news-image {
  aspect-ratio: 16/9;
  background-color: var(--gray-100);
  overflow: hidden;
}

.news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.news-content {
  padding: 1.5rem;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
  color: var(--gray-500);
}

.news-category {
  color: var(--primary);
  font-weight: 600;
}

.news-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.news-excerpt {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.6;
}

.news-filter-section {
  background: #fff;
  padding: 1.25rem 0;
  border-bottom: 1px solid #f1ebe5;
}

.news-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .75rem;
}

.news-filter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: .48rem 1rem;
  border-radius: .35rem;
  background: #FAF8F5;
  color: var(--gray-700);
  border: 1px solid #efe6dd;
  font-size: .82rem;
  font-weight: 800;
}

.news-filter:hover,
.news-filter.active {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
}

.news-list-section {
  background: #FAF8F5;
  padding-top: 3.2rem;
}

.news-list-section .news-grid {
  max-width: 1080px;
  margin: 0 auto;
  gap: 1.6rem;
}

.news-list-section .news-card {
  border-radius: .45rem;
  border-color: #eee5dc;
  box-shadow: 0 8px 24px rgba(15, 23, 42, .05);
}

.news-list-section .news-image {
  position: relative;
  display: block;
  aspect-ratio: 16 / 8.5;
}

.news-badge {
  position: absolute;
  top: .75rem;
  left: .75rem;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: .25rem .58rem;
  border-radius: .25rem;
  background: var(--primary-dark);
  color: #fff;
  font-size: .72rem;
  line-height: 1;
  font-weight: 800;
}

.news-list-section .news-content {
  padding: 1.25rem 1.35rem 1.35rem;
}

.news-list-section .news-meta {
  gap: .8rem;
  font-size: .76rem;
  color: var(--gray-500);
  margin-bottom: .8rem;
}

.news-list-section .news-meta span::before {
  content: '◼';
  color: var(--primary-dark);
  font-size: .55rem;
  margin-right: .35rem;
  vertical-align: middle;
}

.news-list-section .news-title {
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.55;
  margin-bottom: .75rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-list-section .news-excerpt {
  font-size: .9rem;
  line-height: 1.75;
  color: var(--gray-600);
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-read-more {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  color: var(--primary-dark);
  font-size: .86rem;
  font-weight: 800;
}

.news-read-more span {
  transition: transform .2s ease;
}

.news-card:hover .news-read-more span {
  transform: translateX(3px);
}

/* 首页新闻板块 */
.home-news-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2.5rem;
}

.home-news-more {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  color: var(--primary-dark);
  font-size: .9rem;
  font-weight: 700;
  white-space: nowrap;
}

.home-news-more span {
  transition: transform .2s ease;
}

.home-news-more:hover span {
  transform: translateX(3px);
}

.home-news-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .home-news-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.home-news-section .news-image {
  position: relative;
  display: block;
  aspect-ratio: 16 / 8.5;
}

.home-news-section .news-content {
  padding: 1.25rem 1.35rem 1.35rem;
}

.home-news-section .news-meta {
  gap: .8rem;
  font-size: .76rem;
  color: var(--gray-500);
  margin-bottom: .8rem;
}

.home-news-section .news-meta span:first-child::before {
  content: '◼';
  color: var(--primary-dark);
  font-size: .55rem;
  margin-right: .35rem;
  vertical-align: middle;
}

.home-news-section .news-title {
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.55;
  margin-bottom: .75rem;
}

.home-news-section .news-excerpt {
  font-size: .9rem;
  line-height: 1.75;
  color: var(--gray-600);
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (max-width: 767px) {
  .home-news-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
}

/* 新闻详情页 */
.news-detail-page {
  background: linear-gradient(to bottom, #1c1c1c 0, #1c1c1c 315px, #FAF8F5 315px, #FAF8F5 100%);
  padding: 72px 0 5rem;
}

.news-detail-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .55rem;
  max-width: 1024px;
  margin: 0 auto 1.35rem;
  color: rgba(255,255,255,.46);
  font-size: .82rem;
}

.news-detail-breadcrumb a {
  color: rgba(255,255,255,.62);
}

.news-detail-breadcrumb a:hover {
  color: var(--primary-dark);
}

.news-detail-breadcrumb span {
  color: rgba(255,255,255,.32);
}

.news-detail-breadcrumb strong {
  color: rgba(255,255,255,.76);
  font-weight: 800;
}

.news-detail-shell {
  max-width: 1024px;
  margin: 0 auto;
}

.news-detail-header {
  min-height: 138px;
  margin-bottom: 3.4rem;
}

.news-detail-header h1 {
  color: #fff;
  font-size: clamp(1.6rem, 3vw, 2.05rem);
  line-height: 1.35;
  letter-spacing: -0.025em;
  margin-bottom: 1.15rem;
  max-width: 900px;
}

.news-detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
  align-items: center;
  color: rgba(255,255,255,.62);
  font-size: .82rem;
  margin-bottom: 0;
}

.news-detail-meta span {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
}

.news-detail-meta span::before {
  content: '';
  width: .55rem;
  height: .55rem;
  border-radius: .12rem;
  background: var(--primary-dark);
}

.news-detail-meta span + span {
  color: rgba(255,255,255,.72);
  font-weight: 700;
}

.news-detail-article {
  background: #fff;
  border: 0;
  border-radius: .35rem;
  padding: 2rem;
  box-shadow: 0 10px 26px rgba(15, 23, 42, .035);
}

.news-detail-article .news-detail-intro {
  color: var(--gray-600);
  font-size: .98rem;
  line-height: 1.9;
  margin-bottom: 2.2rem;
}

.news-detail-article h2 {
  color: var(--gray-900);
  font-size: 1.35rem;
  line-height: 1.35;
  margin: 2.3rem 0 1rem;
}

.news-detail-article h2:first-child {
  margin-top: 0;
}

.news-detail-article h3 {
  color: var(--gray-900);
  font-size: 1.15rem;
  margin: 2.1rem 0 .9rem;
}

.news-detail-article p {
  color: var(--gray-600);
  font-size: .93rem;
  line-height: 1.9;
  margin-bottom: 1rem;
}

.news-detail-article ul {
  display: grid;
  gap: .75rem;
  margin: .5rem 0 1.4rem;
  padding-left: 1.35rem;
  color: var(--gray-700);
  font-size: .93rem;
}

.news-detail-article li {
  line-height: 1.75;
}

.news-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid #eee5dc;
}

@media (min-width: 768px) {
  .news-detail-article {
    padding: 3.35rem;
  }
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

.about-image {
  border-radius: 1rem;
  overflow: hidden;
}

.about-image img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  display: block;
}

.about-content h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.about-content p {
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 1rem;
}

/* Timeline */
.about-history-section {
  background: #FAF8F5;
}

.about-history-section .section-title {
  color: var(--gray-900);
}

.timeline {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
  padding: 1rem 0 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: #e5ded6;
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: calc(50% - 34px);
  padding: 1.35rem 1.55rem;
  margin-bottom: 1.6rem;
  background: #fff;
  border: 1px solid #eee5dc;
  border-radius: .45rem;
  box-shadow: 0 8px 24px rgba(15, 23, 42, .05);
}

.timeline-item:nth-child(odd) {
  margin-right: auto;
  text-align: right;
}

.timeline-item:nth-child(even) {
  margin-left: auto;
  text-align: left;
}

.timeline-item::before {
  content: '';
  position: absolute;
  top: 1.55rem;
  width: 14px;
  height: 14px;
  background-color: var(--primary);
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 1px #e5ded6;
  z-index: 2;
}

.timeline-item:nth-child(odd)::before {
  right: -42px;
}

.timeline-item:nth-child(even)::before {
  left: -42px;
}

.timeline-year {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 0.5rem;
}

.timeline-title {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.timeline-desc {
  color: var(--gray-600);
  line-height: 1.6;
}


/* ===== 交互式水平时间线 ===== */
.history-wrap {
  max-width: 1280px;
  margin: 0 auto;
  position: relative;
}

/* 年份导航 - 可左右滚动 */
.timeline-nav {
  position: relative;
  margin-bottom: 50px;
  overflow: hidden;
}
.timeline-nav-inner {
  position: relative;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 25px;
}
.timeline-nav-inner::-webkit-scrollbar {
  display: none;
}
.timeline-years {
  display: flex;
  position: relative;
  z-index: 2;
  min-width: max-content;
  padding: 0 20px;
}
.timeline-years::before {
  content: '';
  position: absolute;
  bottom: 16px;
  left: 20px;
  right: 20px;
  height: 2px;
  background: #e5ded6;
  z-index: 0;
}

/* 滚动箭头 */
.timeline-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  background: #e8e4df;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  font-size: 12px;
  color: #fff;
  transition: all 0.3s;
}
.timeline-arrow:hover {
  background: var(--primary);
  color: #fff;
}
.timeline-arrow.arrow-left { left: 0; }
.timeline-arrow.arrow-right { right: 0; }
.timeline-arrow.arrow-disabled {
  opacity: 0.25;
  cursor: default;
  pointer-events: none;
}

/* 年份节点 */
.year-item {
  font-size: 1rem;
  color: var(--gray-500);
  text-align: center;
  cursor: pointer;
  padding-bottom: 35px;
  position: relative;
  min-width: 80px;
  flex: 0 0 auto;
  padding-left: 50px;
  padding-right: 50px;
  transition: color 0.3s;
  user-select: none;
  font-weight: 600;
}
.year-item:hover { color: var(--primary); }
.year-item::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 10px;
  width: 12px;
  height: 12px;
  border: 2px solid #cbd5e1;
  background: #fff;
  transform: translateX(-50%);
  transition: all 0.3s;
}
.year-item.active {
  color: var(--primary);
  font-weight: 700;
}
.year-item.active::after {
  background: var(--primary);
  border-color: var(--primary);
}

/* 内容区 */
.timeline-content {
  display: flex;
  align-items: center;
  min-height: 260px;
}
.year-decor {
  width: 36%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
}
.year-decor .circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  flex-shrink: 0;
}
.year-decor .circle-small {
  width: 50px;
  height: 50px;
  background: #c5cde0;
  font-size: 0.75rem;
  letter-spacing: 0;
  color: rgba(255,255,255,0.95);
}
.year-decor .circle-mid {
  width: 90px;
  height: 90px;
  background: #e07071;
  font-size: 1.1rem;
  letter-spacing: 0;
  color: rgba(255,255,255,0.95);
}
.year-decor .circle-big {
  width: 135px;
  height: 135px;
  font-size: 2rem;
  font-weight: 800;
  background: #CA1C1D;
  box-shadow: 0 8px 30px rgba(202,28,29,0.25);
}

/* 事件列表 */
.event-list {
  width: 56%;
  padding-left: 30px;
}
.event-list ul { list-style: none; }
.event-list li {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--gray-700);
  margin-bottom: 8px;
  padding-left: 22px;
  position: relative;
}
.event-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--primary);
  font-weight: 700;
}

/* 响应式 */
@media only screen and (max-width: 960px) {
  .timeline-content {
    flex-direction: column;
    text-align: center;
  }
  .year-decor {
    width: 100%;
    margin-bottom: 25px;
    min-height: 160px;
  }
  .year-decor .circle-small { left: 25%; }
  .year-decor .circle-mid { left: 35%; }
  .event-list {
    width: 90%;
    padding-left: 0;
    text-align: left;
  }
  .timeline-arrow { display: none; }
}
@media only screen and (max-width: 640px) {
  .year-decor { display: none; }
  .event-list { width: 100%; padding-left: 0; }
  .event-list li { font-size: 0.875rem; line-height: 1.7; }

  /* 左右箭头：圆形，垂直居中 */
  .timeline-arrow {
    display: flex;
    width: 36px;
    height: 36px;
    font-size: 14px;
  }
  .timeline-arrow.arrow-left {
    left: 4px;
    background: #d1d5db;
  }
  .timeline-arrow.arrow-right {
    right: 4px;
    background: var(--primary);
  }

  /* 年份节点：小方块样式 */
  .year-item {
    min-width: 42vw;
    padding-left: 0;
    padding-right: 0;
    font-size: 0.9rem;
    padding-bottom: 28px;
  }
  .year-item::after {
    width: 12px;
    height: 12px;
    border-radius: 0;
    bottom: 8px;
    border: 2px solid #cbd5e1;
    background: #fff;
    transform: translateX(-50%);
  }
  .year-item.active::after {
    background: var(--primary);
    border-color: var(--primary);
  }

  /* 连接线对齐方块，缩短长度 */
  .timeline-years::before {
    bottom: 13px;
    height: 2px;
    left: 50px;
    right: 50px;
  }

  /* 内容区上下排列 */
  .timeline-content {
    flex-direction: column;
    min-height: auto;
    margin-top: 20px;
  }
}
.about-certs-section {
  background: #fff;
}

.about-certs-section .certs-grid {
  margin-bottom: 2.5rem;
}

.about-certs-section .cert-item {
  --tw-bg-opacity: 1;
  background: rgb(250 248 245 / var(--tw-bg-opacity, 1));
  border: 1px solid #eee5dc;
  border-radius: .55rem;
  padding: 1.6rem 1.2rem;
  box-shadow: 0 8px 24px rgba(15, 23, 42, .04);
  text-align: center;
  transition: var(--transition);
}

.about-certs-section .cert-item:hover {
  border-color: var(--primary);
}

.about-certs-section .cert-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin: 0 auto .75rem;
  background: rgba(202, 28, 29, 0.08);
  border-radius: 50%;
  color: var(--primary);
}

.about-certs-section .cert-icon svg {
  width: 26px;
  height: 26px;
}

.about-certs-section .cert-code {
  color: var(--primary-dark);
  font-size: 1.25rem;
  font-weight: 900;
  margin-bottom: .45rem;
}

.about-certs-section .cert-name {
  color: var(--gray-600);
  font-size: .93rem;
}

.about-certs-section .stats-grid {
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
  gap: 1.25rem;
}

.about-certs-section .stat-item {
  --tw-bg-opacity: 1;
  background-color: rgb(28 28 28 / var(--tw-bg-opacity, 1));
  border-radius: .45rem;
  padding: 2rem 1.25rem;
  text-align: center;
}

.about-certs-section .stat-number {
  color: var(--primary-dark);
}

.about-certs-section .stat-label {
  color: var(--gray-400);
}

/* ===== Honors page · certificate carousel ===== */

.honors-section-intro {
  max-width: 760px;
  margin: 0 auto 2.5rem;
  text-align: center;
  color: var(--gray-600);
  line-height: 1.8;
}

.honors-carousel {
  position: relative;
  margin-bottom: 2.5rem;
}

.honors-carousel-viewport {
  position: relative;
  overflow: hidden;
}

.honors-carousel-track {
  display: flex;
  gap: 1.25rem;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: .5rem .25rem 1.5rem;
  scroll-snap-type: x mandatory;
}

.honors-carousel-track::-webkit-scrollbar {
  display: none;
}

.honors-cert-card {
  flex: 0 0 auto;
  /*width: 240px;*/
  width: 300px;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: .65rem;
  overflow: hidden;
  box-shadow: 0 6px 18px rgba(15, 23, 42, .05);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  scroll-snap-align: start;
}

.honors-cert-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(15, 23, 42, .12);
}

.honors-cert-img {
  position: relative;
  aspect-ratio: 3 / 4;
  background: #f5f3ef;
  overflow: hidden;
}

.honors-cert-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  background: #fff;
}

.honors-cert-body {
  padding: .85rem .9rem 1rem;
  text-align: center;
  border-top: 1px solid var(--gray-100);
}

.honors-cert-body .cert-code {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: .25rem;
}

.honors-cert-body .cert-name {
  font-size: .82rem;
  color: var(--gray-500);
  line-height: 1.4;
}

.honors-note {
  text-align: center;
  color: var(--gray-500);
  font-size: .9rem;
  margin-top: 1.5rem;
}

/* Carousel arrows */
.honors-carousel-arrow {
  position: absolute;
  top: 42%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  color: var(--gray-600);
  box-shadow: 0 4px 14px rgba(15, 23, 42, .12);
  transition: all .25s ease;
}

.honors-carousel-arrow:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.honors-carousel-arrow.arrow-disabled {
  opacity: 0.3;
  cursor: default;
  pointer-events: none;
}

.honors-carousel-arrow.honors-arrow-prev {
  left: -14px;
}

.honors-carousel-arrow.honors-arrow-next {
  right: -14px;
}

/* Horizontal variant for landscape certificates */
.honors-carousel-horizontal .honors-cert-card {
  width: 360px;
}

.honors-carousel-horizontal .honors-cert-img {
  aspect-ratio: 4 / 3;
}

@media (max-width: 1023px) {
  .honors-cert-card {
    width: 220px;
  }
  .honors-carousel-horizontal .honors-cert-card {
    width: 320px;
  }
  .honors-carousel-arrow.honors-arrow-prev { left: -10px; }
  .honors-carousel-arrow.honors-arrow-next { right: -10px; }
}

@media (max-width: 639px) {
  .honors-cert-card {
    width: 180px;
  }
  .honors-carousel-horizontal .honors-cert-card {
    width: 260px;
  }
  .honors-carousel-arrow {
    width: 38px;
    height: 38px;
  }
}

.about-recruit-section {
  background: #FAF8F5;
}

.jobs-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  max-width: 1040px;
  margin: 0 auto;
}

.job-card {
  background: #fff;
  border: 1px solid #eee5dc;
  border-radius: .55rem;
  padding: 1.35rem 1.5rem;
  box-shadow: 0 8px 24px rgba(15, 23, 42, .04);
  transition: var(--transition);
}

.job-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(15, 23, 42, .08);
  border-color: var(--primary);
}

.job-card h3 {
  color: var(--gray-900);
  font-size: 1.08rem;
  margin-bottom: .45rem;
}

.job-card p {
  color: var(--gray-500);
  font-size: .92rem;
}

.jobs-cta {
  max-width: 760px;
  margin: 2.2rem auto 0;
  text-align: center;
}

.jobs-cta p {
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 1.2rem;
}

.about-contact-section {
  background: #fff;
}

.about-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  max-width: 1040px;
  margin: 0 auto;
}

.about-contact-card {
  background: #FAF8F5;
  border: 1px solid #eee5dc;
  border-radius: .55rem;
  padding: 1.6rem;
  text-align: center;
}

.about-contact-card span {
  display: block;
  color: var(--primary-dark);
  font-size: .86rem;
  font-weight: 800;
  margin-bottom: .6rem;
}

.about-contact-card strong {
  display: block;
  color: var(--gray-900);
  font-size: 1.08rem;
  line-height: 1.55;
}

.about-contact-action {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

@media (max-width: 767px) {
  .timeline {
    padding-left: 2rem;
  }

  .timeline::before {
    left: 0;
    transform: none;
  }

  .timeline-item,
  .timeline-item:nth-child(odd),
  .timeline-item:nth-child(even) {
    width: auto;
    margin-left: 0;
    margin-right: 0;
    text-align: left;
  }

  .timeline-item::before,
  .timeline-item:nth-child(odd)::before,
  .timeline-item:nth-child(even)::before {
    left: -40px;
    right: auto;
  }
}

/* Contact */
.contact-page-section {
  background: #FAF8F5;
}

.contact-page-grid {
  max-width: 1060px;
  margin: 0 auto;
  align-items: start;
  gap: 1.8rem;
}

.contact-left-stack {
  display: grid;
  gap: 1rem;
  background: #fff;
  border: 1px solid #efe6dd;
  border-radius: .5rem;
  box-shadow: 0 8px 24px rgba(15, 23, 42, .04);
  padding: 1.7rem 1.8rem;
}

.contact-info-card,
.contact-form-card {
  background: #fff;
  border: 1px solid #efe6dd;
  border-radius: .5rem;
  box-shadow: 0 8px 24px rgba(15, 23, 42, .04);
}

.contact-info-card {
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.contact-info-card h2,
.contact-form-card h2 {
  font-size: 1.18rem;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 1.35rem;
}

.contact-form-card {
  padding: 1.9rem 2.1rem 2.2rem;
}

.contact-form-card .form-label {
  color: var(--gray-900);
  font-weight: 600;
}

.contact-form-card .form-input,
.contact-form-card .form-textarea,
.contact-form-card .form-select {
  background-color: #fff;
  border-color: var(--gray-300);
  color: var(--gray-900);
}

.contact-form-card .form-input::placeholder,
.contact-form-card .form-textarea::placeholder {
  color: var(--gray-400);
}

.contact-form-card .form-select {
  color: var(--gray-700);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2364748b' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
}

.contact-privacy-card {
  background: #1c1c1c;
  color: #fff;
  border-radius: .5rem;
  padding: 1.35rem 1.5rem;
  text-align: center;
}

.contact-privacy-card strong {
  display: block;
  font-size: .98rem;
  margin-bottom: .35rem;
  color: rgba(255,255,255,.88);
}

.contact-privacy-card span {
  display: block;
  color: rgba(255,255,255,.55);
  font-size: .85rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.contact-info-item {
  display: flex;
  gap: .9rem;
  margin-bottom: 1.15rem;
}

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

.contact-info-icon {
  width: 36px;
  height: 36px;
  background-color: rgba(202, 28, 29, 0.1);
  border-radius: 0.45rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-info-title {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--gray-500);
  margin-bottom: 0.25rem;
}

.contact-info-value {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--gray-900);
  line-height: 1.55;
}

.contact-info-value span {
  color: var(--gray-500);
  font-size: .82rem;
  font-weight: 500;
}

/* Scroll to top */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background-color: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  box-shadow: var(--shadow-lg);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  background-color: var(--primary-dark);
  transform: translateY(-4px);
}

/* Responsive */
@media (min-width: 640px) {
  .hero-title, .hero-slide-title {
    font-size: 2.5rem;
  }

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

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

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

  .hero-buttons {
    flex-direction: row;
    justify-content: center;
  }
}

@media (min-width: 768px) {
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .about-contact-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

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

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

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

  .footer-contact-row {
    grid-template-columns: repeat(3, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }

  .contact-page-grid {
    grid-template-columns: .82fr 1.72fr;
  }

  .form-row {
    grid-template-columns: 1fr 1fr;
  }

  .page-header-title {
    font-size: 3rem;
  }
}

@media (min-width: 1024px) {
  .nav {
    display: flex;
  }

  .header-cta {
    display: block;
     margin-left: 1.25rem;
  }

  .mobile-menu-btn {
    display: none;
  }

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

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

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

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

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

  .partners-grid {
    grid-template-columns: repeat(5, 1fr);
  }

  .home-mini-cta {
    grid-template-columns: 1fr auto;
    padding: 2.8rem 3.2rem;
  }

  .certs-grid {
    grid-template-columns: repeat(6, 1fr);
  }

  .process-steps {
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
  }

  .home-process-section .process-steps {
    gap: 2rem;
    align-items: start;
    position: relative;
  }

  .home-process-section .process-steps::before {
    content: '';
    position: absolute;
    top: 37px;
    left: 4%;
    right: 4%;
    height: 1px;
    background: var(--gray-200);
    z-index: 0;
  }

  .process-step {
    flex-direction: column;
    text-align: center;
  }

  .home-process-section .process-step {
    text-align: center;
    gap: 0;
    align-items: center;
  }

  .process-content {
    border-bottom: none;
    padding-bottom: 0;
  }

  .cta-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-main {
    grid-template-columns: minmax(320px, 2.2fr) repeat(3, 1fr);
    gap: 4.2rem;
  }

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  .about-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .section-title {
    font-size: 2.5rem;
  }

  .hero-title, .hero-slide-title {
    font-size: 3rem;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}


/* 产品导航下拉菜单 */
.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  height: 90px;
}

.nav-item::after {
  content: '';
  position: absolute;
  left: -16px;
  right: -16px;
  top: 100%;
  height: 18px;
}

.nav-mega {
  position: fixed;
  top: 90px;
  left: 50%;
  width: min(1180px, calc(100vw - 48px));
  transform: translateX(-50%) translateY(0);
  background: #fff;
  color: var(--gray-800);
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.18);
  border-radius: 0 0 12px 12px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .22s ease, transform .22s ease, visibility .22s ease;
  z-index: 1200;
  overflow: hidden;
}

.nav-item:hover .nav-mega,
.nav-item:focus-within .nav-mega,
.nav-item.is-open .nav-mega {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.mega-inner {
  display: grid;
  grid-template-columns: 235px minmax(0, 1fr) 280px;
  min-height: 360px;
}

.mega-panel {
  display: none;
  grid-column: 2 / 4;
  grid-template-columns: minmax(0, 1fr) 280px;
}

.mega-panel.active {
  display: grid;
}

.mega-cats {
  padding: 22px 14px;
  border-right: 1px solid var(--gray-100);
}

.mega-cat {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px 10px;
  padding: 13px 14px;
  border-radius: 8px;
  color: var(--gray-700);
  font-size: 14px;
  font-weight: 600;
}

.mega-cat strong {
  color: inherit;
  line-height: 1.25;
}

.mega-cat small {
  grid-column: 1 / 2;
  color: var(--gray-500);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.4;
}

.mega-cat > span {
  grid-row: 1 / 3;
  grid-column: 2 / 3;
  color: var(--gray-400);
}

.mega-cat:hover,
.mega-cat.active {
  color: var(--primary-dark);
  background: rgba(202, 28, 29, 0.08);
}

.mega-cat:hover small,
.mega-cat.active small {
  color: var(--primary-dark);
}

.mega-more {
  display: block;
  margin: 18px 0 0;
  padding: 12px 16px;
  border: 1px solid var(--primary);
  border-radius: 8px;
  color: var(--primary-dark);
  text-align: center;
  font-weight: 700;
  font-size: 14px;
}

.mega-products {
  padding: 26px 28px 28px;
  background: #FAFAFA;
}

.mega-title {
  font-size: 20px;
  line-height: 1.2;
  color: var(--gray-900);
  font-weight: 800;
  margin-bottom: 8px;
}

.mega-desc {
  color: var(--gray-500);
  font-size: 13px;
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 620px;
}

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

.mega-product-card {
  display: block;
  min-width: 0;
  min-height: 82px;
  padding: 14px 15px;
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  background: #fff;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.mega-product-card:hover {
  transform: translateY(-2px);
  border-color: rgba(202, 28, 29, .28);
  box-shadow: 0 10px 24px rgba(15, 23, 42, .08);
}

.mega-product-card strong {
  display: block;
  color: var(--gray-900);
  font-size: 14px;
  font-weight: 800;
  margin-bottom: 6px;
}

.mega-product-card span {
  display: block;
  color: var(--gray-500);
  font-size: 12px;
  line-height: 1.55;
}

.mega-feature {
  padding: 26px 22px;
  border-left: 1px solid var(--gray-100);
  background: #fff;
}

.mega-feature-card {
  display: block;
  height: 100%;
  color: var(--gray-700);
}

.mega-feature-card img {
  display: block;
  width: 100%;
  height: 168px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--gray-200);
  background: var(--gray-100);
  margin-bottom: 14px;
}

.mega-feature-card strong {
  display: block;
  color: var(--gray-900);
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 8px;
}

.mega-feature-card span {
  display: block;
  color: var(--gray-500);
  font-size: 13px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.mega-feature-card em {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-style: normal;
  font-weight: 800;
  font-size: 13px;
}

/* 详情页通用样式 */
/* 详情页通用样式 */
.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
}

.detail-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: var(--shadow);
}

.detail-hero-image {
  width: 100%;
  border-radius: 1rem;
  overflow: hidden;
  margin-bottom: 2rem;
}

.detail-hero-image img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
}

.detail-content h2 {
  font-size: 1.6rem;
  color: var(--gray-900);
  margin: 2rem 0 1rem;
}

.detail-content h3 {
  font-size: 1.2rem;
  color: var(--gray-900);
  margin: 1.5rem 0 .75rem;
}

.detail-content p {
  color: var(--gray-600);
  line-height: 1.9;
  margin-bottom: 1rem;
}

.detail-content ul {
  list-style: disc;
  padding-left: 1.5rem;
  color: var(--gray-600);
  line-height: 1.9;
  margin-bottom: 1rem;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: .75rem;
  margin: 1.5rem 0;
}

.spec-table th,
.spec-table td {
  border: 1px solid var(--gray-200);
  padding: 1rem;
  text-align: left;
}

.spec-table th {
  width: 32%;
  background: var(--gray-50);
  color: var(--gray-900);
}

/* 产品详情页 */
.product-detail-header {
  text-align: left;
  padding-top: 68px;
  padding-bottom: 3.6rem;
}

.product-detail-header .breadcrumb {
  margin-bottom: .8rem;
}

.product-detail-header .page-header-title {
  margin-bottom: 0;
}

.product-detail-main {
  background: #FAF8F5;
  padding: 3.2rem 0 5rem;
}

.product-detail-overview {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
  margin-bottom: 2.5rem;
}

.product-detail-image {
  overflow: hidden;
  border-radius: .45rem;
  background: var(--gray-100);
  box-shadow: 0 10px 28px rgba(15, 23, 42, .08);
}

.product-detail-image img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.product-detail-summary {
  padding: .25rem 0;
}

.detail-category {
  color: var(--primary-dark);
  font-size: .85rem;
  font-weight: 800;
  margin-bottom: .35rem;
}

.product-detail-summary h2 {
  color: var(--gray-900);
  font-size: 1.65rem;
  line-height: 1.25;
  margin-bottom: .75rem;
}

.detail-spec-line {
  color: var(--primary-dark);
  font-size: .9rem;
  font-weight: 800;
  margin-bottom: 1.35rem;
}

.detail-desc {
  color: var(--gray-600);
  line-height: 1.9;
  margin-bottom: 1.75rem;
  max-width: 560px;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.detail-actions .btn-outline {
  background: #fff;
  border-color: var(--gray-200);
  color: var(--gray-900);
}

.detail-service-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.detail-service-card {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: #fff;
  border: 1px solid #efe6dd;
  border-radius: .55rem;
  padding: 1.25rem 1.35rem;
  box-shadow: 0 8px 22px rgba(15, 23, 42, .04);
}

.detail-service-icon {
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  border-radius: .45rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #fff6eb;
  color: var(--primary-dark);
  font-size: .72rem;
  font-weight: 900;
}

.detail-service-card h3 {
  font-size: 1rem;
  color: var(--gray-900);
  margin-bottom: .35rem;
}

.detail-service-card p {
  color: var(--gray-600);
  font-size: .9rem;
  line-height: 1.6;
}

.detail-panel {
  background: #fff;
  border: 1px solid #efe6dd;
  border-radius: .65rem;
  padding: 1.8rem 2rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 8px 22px rgba(15, 23, 42, .04);
}

.detail-panel h2 {
  color: var(--gray-900);
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
}

.detail-description-copy {
  display: grid;
  gap: 1rem;
}

.detail-description-copy p {
  color: var(--gray-600);
  line-height: 1.9;
  font-size: .96rem;
}

.product-spec-table {
  margin: 0;
}

.product-spec-table th,
.product-spec-table td {
  border-left: none;
  border-right: none;
  padding: 1rem .25rem;
}

.product-spec-table th {
  background: transparent;
  color: var(--gray-500);
  font-weight: 700;
}

.detail-scene-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .8rem;
}

.detail-scene-grid span {
  display: block;
  padding: .9rem 1rem;
  background: #FAF8F5;
  border: 1px solid #efe6dd;
  border-radius: .45rem;
  color: var(--gray-700);
  font-weight: 700;
}

/* 适用行业 / 应用场景 — 图片卡片 */
.detail-industry-grid,
.detail-scene-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.detail-industry-card,
.detail-scene-card {
  position: relative;
  border-radius: .65rem;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.detail-industry-card img,
.detail-scene-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.detail-industry-card::after,
.detail-scene-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.72) 0%, rgba(0,0,0,.18) 50%, transparent 100%);
}

.detail-industry-card span,
.detail-scene-card span {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: .9rem 1rem;
  color: #fff;
  font-weight: 700;
  font-size: .95rem;
  z-index: 1;
  line-height: 1.3;
}

.detail-industry-card small,
.detail-scene-card small {
  display: block;
  font-size: .78rem;
  font-weight: 400;
  color: rgba(255,255,255,.78);
  margin-top: .2rem;
}

.seo-related-section {
  margin-top: 2rem;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 1rem;
  padding: 1.8rem;
  box-shadow: var(--shadow);
}

.seo-related-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--gray-100);
}

.seo-related-kicker {
  display: block;
  color: var(--primary);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .06em;
  margin-bottom: .35rem;
}

.seo-related-head h2 {
  color: var(--gray-900);
  font-size: 1.35rem;
  line-height: 1.25;
}

.seo-related-more {
  color: var(--primary-dark);
  font-size: .9rem;
  font-weight: 800;
  white-space: nowrap;
}

.seo-related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.seo-related-card {
  display: flex;
  flex-direction: column;
  min-height: 150px;
  padding: 1.1rem;
  border: 1px solid var(--gray-200);
  border-radius: .85rem;
  background: var(--gray-50);
  transition: var(--transition);
}

.seo-related-card:hover {
  transform: translateY(-3px);
  border-color: rgba(202, 28, 29, .35);
  background: #fff;
  box-shadow: 0 14px 30px rgba(15, 23, 42, .08);
}

.seo-related-type {
  color: var(--primary-dark);
  font-size: .75rem;
  font-weight: 800;
  margin-bottom: .55rem;
}

.seo-related-card strong {
  color: var(--gray-900);
  font-size: 1rem;
  line-height: 1.35;
  margin-bottom: .5rem;
}

.seo-related-card p {
  color: var(--gray-600);
  font-size: .88rem;
  line-height: 1.65;
  margin-bottom: 1rem;
}

.seo-related-card span:last-child {
  margin-top: auto;
  color: var(--primary-dark);
  font-size: .86rem;
  font-weight: 800;
}

@media (min-width: 768px) {
  .detail-service-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .detail-scene-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .seo-related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .product-detail-overview {
    grid-template-columns: 1.05fr .95fr;
    gap: 3rem;
  }

  .detail-industry-grid,
  .detail-scene-cards {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 1023px) {
  .nav-mega {
    display: none;
  }
}


/* 解决方案列表页 */
.solution-hero {
  position: relative;
  min-height: 360px;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
  background: #0f172a;
}

.solution-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(90deg, rgba(15,23,42,.42), rgba(15,23,42,.18)), url('../assets/images/solution-hero-default.jpg');
  background-size: cover;
  background-position: center;
}

.solution-hero .container {
  position: relative;
  z-index: 1;
  padding-top: 30px;
}

.solution-hero-label {
  color: var(--primary-light);
  font-weight: 700;
  letter-spacing: .08em;
  margin-bottom: 1rem;
}

.solution-hero h1 {
  font-size: clamp(2.3rem, 5vw, 4.5rem);
  line-height: 1.1;
  max-width: 760px;
  margin-bottom: 1rem;
}

.solution-hero p {
  color: rgba(255,255,255,.78);
  font-size: 1.15rem;
  max-width: 680px;
}

.solution-list-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem;
  max-width: 1160px;
  margin: 0 auto;
}
/* 解决方案页侧边栏布局适配 */
.products-content .solution-list-grid {
  max-width: 100%;
  margin: 0;
}
.solution-list-card {
  display: grid;
  grid-template-columns: 1fr;
  background: #fff;
  border: 1px solid #efe6dd;
  border-radius: .45rem;
  overflow: hidden;
  box-shadow: 0 12px 30px rgba(15, 23, 42, .08);
  transition: var(--transition);
}

.solution-list-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.solution-list-image {
  display: block;
  min-height: 100%;
  overflow: hidden;
}

.solution-list-card img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.solution-list-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 2rem 2.2rem;
}

.solution-list-body h3 {
  color: var(--gray-900);
  font-size: 1.28rem;
  margin-bottom: 1rem;
}

.solution-list-body p {
  color: var(--gray-600);
  line-height: 1.75;
  margin-bottom: 1.35rem;
  font-size: .95rem;
}

.solution-list-link {
  color: var(--primary-dark);
  font-weight: 800;
}

.solution-list-btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: #111;
  color: #fff;
  min-height: 38px;
  padding: .65rem 1.1rem;
  border-radius: .25rem;
  font-size: .86rem;
  font-weight: 800;
}

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

.solution-list-btn span {
  transition: transform .2s ease;
}

.solution-list-btn:hover span {
  transform: translateX(3px);
}

.solution-list-section {
  background: #FAF8F5;
  padding-top: 4.5rem;
}

.solution-list-heading {
  margin-bottom: 2.2rem;
}

.tech-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.tech-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 1.25rem;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.tech-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

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

.tech-card-body {
  padding: 1.5rem;
}

.tech-card-body h3 {
  color: var(--gray-900);
  font-size: 1.25rem;
  margin-bottom: .75rem;
}

.tech-card-body p {
  color: var(--gray-600);
  line-height: 1.75;
  margin-bottom: 1rem;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.tech-tags span {
  background: #FAF8F5;
  color: var(--gray-700);
  border: 1px solid var(--gray-200);
  border-radius: 999px;
  padding: .38rem .75rem;
  font-size: .78rem;
  font-weight: 600;
}

/* 解决方案详情页 */
.solution-detail-page {
  background: linear-gradient(to bottom, #1c1c1c 0, #1c1c1c 315px, #FAF8F5 315px, #FAF8F5 100%);
  padding: 72px 0 2rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  color: var(--primary-dark);
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.solution-detail-shell {
  max-width: 1024px;
  margin: 0 auto;
}

.solution-detail-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  max-width: 1024px;
  margin: 0 auto 1.35rem;
  color: rgba(255,255,255,.46);
  font-size: .875rem;
}

.solution-detail-breadcrumb a {
  color: rgba(255,255,255,.62);
  text-decoration: none;
}

.solution-detail-breadcrumb a:hover {
  color: var(--primary-dark);
}

.solution-detail-breadcrumb span {
  color: rgba(255,255,255,.32);
}

.solution-detail-breadcrumb strong {
  color: rgba(255,255,255,.76);
  font-weight: 500;
}

.solution-detail-title {
  color: #fff;
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.solution-detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
  margin-bottom: 1.35rem;
}

.solution-detail-meta span {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  color: rgba(255,255,255,.7);
  font-size: .88rem;
}

.solution-detail-meta span::before {
  content: '';
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
  background: var(--primary);
}

.solution-detail-intro {
  color: rgba(255,255,255,.82);
  font-size: 1.05rem;
  line-height: 1.75;
  max-width: 800px;
}

.solution-detail-article {
  background: #fff;
  border-radius: 1rem;
  padding: 2.2rem 1.65rem;
  box-shadow: 0 4px 20px rgba(15,23,42,.06);
}

.solution-detail-article h2 {
  color: var(--gray-900);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 2rem 0 1rem;
}

.solution-detail-article h2:first-child {
  margin-top: 0;
}

.solution-detail-article h3 {
  color: var(--gray-900);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 1.5rem 0 .75rem;
}

.solution-detail-article p {
  color: var(--gray-600);
  line-height: 1.75;
  margin-bottom: 1rem;
}

.solution-detail-article img {
  width: 100%;
  border-radius: 12px;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .solution-detail-article {
    padding: 3rem;
  }
}

.value-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 1.25rem;
  padding: 2rem;
  box-shadow: var(--shadow);
}

.scenario-pills {
  display: grid;
  grid-template-columns: 1fr;
  gap: .9rem;
  margin: 1.5rem 0 2rem;
}

.scenario-pill {
  background: #FAF8F5;
  border: 1px solid var(--gray-200);
  border-radius: .9rem;
  padding: 1rem 1.1rem;
  color: var(--gray-800);
  font-weight: 700;
}

.quote-box {
  background: #000;
  color: #fff;
  border-radius: 1.25rem;
  padding: 2rem;
  margin-top: 2rem;
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.related-solution {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.related-solution img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.related-solution h4 {
  padding: 1rem;
  color: var(--gray-900);
}

@media (min-width: 768px) {
  .solution-list-grid {
    grid-template-columns: 1fr;
  }

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

  .scenario-pills {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 1024px) {
  .solution-list-card {
    grid-template-columns: 0.82fr 1.18fr;
    min-height: 200px;
  }

  .solution-list-card img {
    aspect-ratio: auto;
    min-height: 100%;
  }

}


/* 产品 SEO 列表页 */
.product-list-section {
  background: #FAF8F5;
  padding-top: 3rem;
  padding-bottom: 4rem;
}

.product-filters {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: .75rem;
  margin-bottom: 3.2rem;
}

.product-filter-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .7rem;
}

.product-filter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: .48rem 1rem;
  border-radius: .35rem;
  background: #fff;
  color: var(--gray-700);
  border: 1px solid var(--gray-200);
  font-size: .82rem;
  font-weight: 700;
}

.product-filter:hover,
.product-filter.active {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
}

.product-list-section .products-grid {
  gap: 3rem;
}

.product-list-section .product-card {
  border-color: #eadfd5;
}

.product-list-section .product-card:hover {
  border-color: rgba(202, 28, 29, 0.45);
}

.product-list-section .product-category {
  position: absolute;
  top: .85rem;
  left: .85rem;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: .25rem .6rem;
  border-radius: .25rem;
  background: rgba(17, 24, 39, .88);
  color: #fff;
  font-size: .72rem;
  line-height: 1;
  font-weight: 800;
  letter-spacing: 0;
  margin: 0;
  text-transform: none;
}

.product-hot {
  position: absolute;
  top: .85rem;
  right: .85rem;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: .25rem .55rem;
  border-radius: .25rem;
  background: var(--primary-dark);
  color: #fff;
  font-size: .72rem;
  line-height: 1;
  font-weight: 800;
}

.product-more {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  color: var(--primary-dark);
  font-size: .88rem;
  font-weight: 800;
}

.product-more span {
  transition: transform .2s ease;
}

.product-more:hover span {
  transform: translateX(3px);
}

/* ========================================
   解决方案详情页 - 新模板
   ======================================== */
.sol-detail-hero {
  background: #1C1C1C;
  padding: 72px 0 3rem;
}

.sol-detail-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.sol-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,.52);
  font-size: .875rem;
  margin-bottom: 1.5rem;
  transition: color .2s ease;
}

.sol-back-link:hover {
  color: #fff;
}

.sol-back-link svg {
  width: 1em;
  height: 1em;
}

.sol-label {
  display: block;
  font-size: .875rem;
  font-weight: 700;
  color: var(--primary-dark);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: .75rem;
}

.sol-detail-hero h1 {
  color: #fff;
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.sol-detail-hero .sol-desc {
  color: rgba(255,255,255,.72);
  font-size: 1.05rem;
  line-height: 1.75;
  max-width: 800px;
}

.sol-detail-white {
  background: #fff;
  padding: 3rem 0;
}

.sol-two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: 2.5rem;
}

.sol-image-wrap {
  position: relative;
  height: 320px;
  border-radius: .65rem;
  overflow: hidden;
}

.sol-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sol-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1C1C1C;
  margin-bottom: 1rem;
}

.sol-content > p {
  color: #5D5D5D;
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

.sol-checklist {
  display: flex;
  flex-direction: column;
  gap: .85rem;
}

.sol-check-item {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  color: #1C1C1C;
  font-size: .95rem;
}

.sol-check-icon {
  color: var(--primary-dark);
  flex-shrink: 0;
  margin-top: .15rem;
}

.sol-tech-box {
  background: #FAF8F5;
  border-radius: .65rem;
  padding: 1.75rem;
  margin-bottom: 2.5rem;
}

.sol-tech-box h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #1C1C1C;
  margin-bottom: 1.25rem;
}

.sol-tech-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: .85rem;
}

.sol-tech-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  color: #1C1C1C;
  font-size: .95rem;
}

.sol-tech-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary-dark);
  flex-shrink: 0;
}

.sol-cta-box {
  text-align: center;
  padding: 1rem 0 0;
}

.sol-cta-box h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1C1C1C;
  margin-bottom: .75rem;
}

.sol-cta-box p {
  color: #5D5D5D;
  margin-bottom: 1.5rem;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.sol-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .875rem 2rem;
  background: var(--primary-dark);
  color: #fff;
  font-weight: 700;
  border-radius: .375rem;
  transition: all .3s ease;
  box-shadow: 0 10px 15px -3px rgba(160, 22, 23, .25);
}

.sol-btn-primary:hover {
  background: #871213;
  transform: translateY(-2px);
}

.sol-related-section {
  background: #FAF8F5;
  border-top: 1px solid #f1ebe5;
  padding: 3rem 0;
}

.sol-related-section h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #1C1C1C;
  margin-bottom: 1.5rem;
  text-align: center;
}

.sol-related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.sol-related-card {
  display: block;
  background: #fff;
  border-radius: .5rem;
  overflow: hidden;
  border: 1px solid #f1ebe5;
  transition: all .3s ease;
}

.sol-related-card:hover {
  box-shadow: 0 10px 15px -3px rgba(0,0,0,.08);
  border-color: var(--primary-dark);
}

.sol-related-img {
  position: relative;
  height: 160px;
  overflow: hidden;
}

.sol-related-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

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

.sol-related-card h4 {
  padding: 1rem;
  font-size: .9rem;
  font-weight: 700;
  color: #1C1C1C;
  transition: color .2s ease;
}

.sol-related-card:hover h4 {
  color: var(--primary-dark);
}

@media (min-width: 768px) {
  .sol-two-col {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .sol-image-wrap {
    height: 384px;
  }

  .sol-tech-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .sol-related-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ========================================
   解决方案页面 - 三大核心技术能力
   ======================================== */
.core-tech-section {
  background: #fff;
  padding-top: 4.5rem;
  padding-bottom: 4.5rem;
}

.core-tech-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.core-tech-card {
  background: #fff;
  border: 1px solid #f1ebe5;
  border-radius: .65rem;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(15, 23, 42, .06);
  transition: var(--transition);
}

.core-tech-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(15, 23, 42, .1);
  border-color: rgba(202, 28, 29, 0.35);
}

.core-tech-img-wrap {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.core-tech-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.core-tech-card:hover .core-tech-img-wrap img {
  transform: scale(1.05);
}

.core-tech-img-title {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem 1.25rem;
  background: linear-gradient(to top, rgba(15,23,42,.78), rgba(15,23,42,0));
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
}

.core-tech-body {
  padding: 1.5rem;
}

.core-tech-body > p {
  color: var(--gray-600);
  line-height: 1.75;
  font-size: .92rem;
  margin-bottom: 1.25rem;
}

.core-tech-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.core-tech-list li {
  display: flex;
  align-items: center;
  gap: .6rem;
  color: var(--gray-800);
  font-size: .88rem;
  line-height: 1.5;
}

@media (min-width: 768px) {
  .core-tech-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .core-tech-img-wrap {
    height: 180px;
  }
}

 /*========================================*/
 /*  产品列表页 - 侧边栏导航布局*/
 /*  ======================================== */

.products-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 2rem;
  align-items: start;
}

 /*侧边栏 */
.products-sidebar {
  position: sticky;
  top: 100px;
  align-self: start;
}

.sidebar-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: .65rem;
  padding: 1.25rem 0;
  box-shadow: var(--shadow-sm);
}

.sidebar-title {
  font-size: .95rem;
  font-weight: 700;
  color: var(--gray-900);
  padding: 0 1.25rem .75rem;
  border-bottom: 2px solid var(--primary-dark);
  margin-bottom: .75rem;
}

.sidebar-group {
  margin-bottom: .5rem;
}

.sidebar-group-label {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .6rem 1rem;
  font-size: .82rem;
  font-weight: 700;
  color: var(--gray-700);
  cursor: pointer;
  border-radius: .4rem;
  transition: all .15s ease;
  position: relative;
  text-decoration: none;
}

.sidebar-group-label .sidebar-label-text {
  flex: 1;
}

.sidebar-arrow {
  margin-left: auto;
  font-size: 1.1rem;
  color: var(--gray-400);
  transition: all .15s ease;
  transform: rotate(90deg);
  line-height: 1;
  padding: .35rem .6rem;
  flex-shrink: 0;
  user-select: none;
  border-radius: .25rem;
  cursor: pointer;
}

.sidebar-group-label:hover {
  color: var(--primary-dark);
  background: rgba(202, 28, 29, 0.04);
}

.sidebar-group-label:hover .sidebar-arrow {
  color: var(--primary-dark);
}

.sidebar-group-label.active {
  color: var(--primary-dark);
  background: rgba(202, 28, 29, 0.08);
}

.sidebar-group-label.active .sidebar-arrow {
  color: var(--primary-dark);
}

.sidebar-group-label:not(.open) .sidebar-arrow {
  transform: rotate(0deg);
}

.sidebar-group-label.open .sidebar-arrow {
  color: var(--primary-dark);
}

.sidebar-group-label svg {
  width: 15px;
  height: 15px;
  color: var(--primary-dark);
  flex-shrink: 0;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .5rem 1rem .5rem 1.75rem;
  font-size: .82rem;
  color: var(--gray-600);
  text-decoration: none;
  border-left: 2px solid transparent;
  margin-left: 3px;
  transition: all .15s ease;
}

.sidebar-item:hover {
  color: var(--primary-dark);
  background: rgba(202, 28, 29, 0.04);
  border-left-color: rgba(202, 28, 29, 0.3);
}

.sidebar-item.active {
  color: var(--primary-dark);
  background: rgba(202, 28, 29, 0.08);
  border-left-color: var(--primary-dark);
  font-weight: 600;
}

.sidebar-item .dot {
  width: 4px;
  height: 4px;
  background: var(--gray-300);
  border-radius: 50%;
  flex-shrink: 0;
  transition: background .15s ease;
}

.sidebar-item:hover .dot,
.sidebar-item.active .dot {
  background: var(--primary-dark);
}

/* 三级分类样式 */
.sidebar-sub-group {
  position: relative;
}

.sidebar-sub-label {
  display: flex;
  align-items: center;
  gap: .4rem;
  padding: .5rem 1rem .5rem 1.75rem;
  font-size: .8rem;
  font-weight: 600;
  color: var(--gray-600);
  cursor: pointer;
  transition: all .15s ease;
  position: relative;
  text-decoration: none;
}

.sidebar-sub-label .sidebar-label-text {
  flex: 1;
}

.sidebar-sub-label .sidebar-arrow {
  font-size: 1rem;
  padding: .25rem .5rem;
  transform: rotate(0deg);
  border-radius: .25rem;
}

.sidebar-sub-label:hover {
  color: var(--primary-dark);
}

.sidebar-sub-label:hover .sidebar-arrow {
  color: var(--primary-dark);
}

.sidebar-sub-label.open .sidebar-arrow {
  transform: rotate(90deg);
  color: var(--primary-dark);
}

.sidebar-sub-items {
  display: none;
  padding-left: 1.25rem;
}

.sidebar-sub-items.open {
  display: block;
}

 /*一级分类收起时隐藏子项 */
.sidebar-items.collapsed {
  display: none;
}

.sidebar-sub-item {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .38rem 1rem .38rem 1rem;
  font-size: .78rem;
  color: var(--gray-500);
  text-decoration: none;
  border-left: 2px solid transparent;
  margin-left: 3px;
  transition: all .15s ease;
}

.sidebar-sub-item:hover {
  color: var(--primary-dark);
  background: rgba(202, 28, 29, 0.04);
  border-left-color: rgba(202, 28, 29, 0.3);
}

.sidebar-sub-item.active {
  color: var(--primary-dark);
  background: rgba(202, 28, 29, 0.08);
  border-left-color: var(--primary-dark);
  font-weight: 600;
}

.sidebar-sub-item .dot {
  width: 4px;
  height: 4px;
  background: var(--gray-300);
  border-radius: 50%;
  flex-shrink: 0;
  transition: background .15s ease;
}

.sidebar-sub-item:hover .dot,
.sidebar-sub-item.active .dot {
  background: var(--primary-dark);
}

.sidebar-all {
  display: block;
  margin: .75rem 1.25rem 0;
  padding: .6rem;
  text-align: center;
  font-size: .82rem;
  font-weight: 600;
  color: var(--primary-dark);
  border: 1px solid var(--primary-dark);
  border-radius: .4rem;
  text-decoration: none;
  transition: all .15s ease;
}

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

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

/* 内容区 */
.products-content {
  min-width: 0;
}

.products-breadcrumb {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .8rem;
  color: var(--gray-400);
  margin-bottom: 1.5rem;
}

.products-breadcrumb a {
  color: var(--gray-400);
  text-decoration: none;
}

.products-breadcrumb a:hover {
  color: var(--primary-dark);
}

.products-breadcrumb .current {
  color: var(--primary-dark);
  font-weight: 500;
}

.products-content-header {
  margin-bottom: 2.5rem;
}

.products-content-header h1,
.products-content-header h2 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 2rem;
}

.products-content-header p {
  font-size: .92rem;
  color: var(--gray-500);
  line-height: 1.8;
  max-width: 680px;
  margin-bottom: 3rem;
}

/* 产品卡片 - 内容区 */
.products-content .products-grid {
  gap: 2.5rem;
}

.products-content .product-card {
  border-color: var(--gray-200);
}

.products-content .product-card:hover {
  border-color: rgba(202, 28, 29, 0.35);
}

/* 响应式 */
@media (max-width: 1024px) {
  /*.products-layout {*/
  /*  grid-template-columns: 1fr;*/
  /*}*/

  .products-sidebar {
    position: static;
    order: -1;
  }

  .sidebar-card {
    padding: 1rem 0 1.5rem;
  }

  .sidebar-nav {
    display: flex;
    flex-wrap: wrap;
    gap: .35rem;
    padding: 0 1rem;
  }

  .sidebar-group {
    margin-bottom: 0;
    width: 100%;
  }

  .sidebar-group-label {
    padding: .4rem .6rem;
    font-size: .78rem;
    -webkit-tap-highlight-color: transparent;
  }

  .sidebar-group-label .sidebar-label-text {
    flex: 1;
  }

  .sidebar-items {
    display: block;
    padding-left: 0;
  }

  .sidebar-items.collapsed {
    display: none;
  }

  .sidebar-sub-group {
    display: block;
    margin-bottom: .4rem;
  }

  .sidebar-sub-label {
    display: flex;
    align-items: center;
    padding: .55rem .85rem;
    margin: 0;
    font-size: .82rem;
    border-radius: .4rem;
    background: rgba(0, 0, 0, 0.04);
    -webkit-tap-highlight-color: transparent;
    min-height: 36px;
    width: 100%;
  }

  .sidebar-sub-label .sidebar-label-text {
    flex: 1;
  }

  /* 移动端：一级、二级箭头都显示，加大点击区域 */
  .sidebar-group-label .sidebar-arrow {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    line-height: 1;
    width: 36px;
    height: 36px;
    padding: 0;
    margin-left: auto;
    margin-right: -8px;
    color: #999;
    transform: rotate(90deg);
    -webkit-transform: rotate(90deg);
    border-radius: .3rem;
  }

  .sidebar-group-label:not(.open) .sidebar-arrow {
    transform: rotate(0deg);
    -webkit-transform: rotate(0deg);
  }

  .sidebar-group-label.active .sidebar-arrow {
    color: #c80e0e;
  }

  .sidebar-sub-label .sidebar-arrow {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    line-height: 1;
    width: 36px;
    height: 36px;
    padding: 0;
    margin-left: auto;
    margin-right: -8px;
    color: #999;
    transform: rotate(0deg);
    -webkit-transform: rotate(0deg);
    border-radius: .3rem;
  }

  .sidebar-sub-label.open {
    background: rgba(202, 28, 29, 0.06);
  }

  .sidebar-sub-label.open .sidebar-arrow {
    transform: rotate(90deg);
    -webkit-transform: rotate(90deg);
    color: #c80e0e;
  }

  .sidebar-sub-items {
    display: none;
    flex-wrap: wrap;
    gap: .45rem;
    padding: .55rem 0 0 0;
    width: 100%;
  }

  .sidebar-sub-items.open {
    display: flex;
  }

  .sidebar-sub-item {
    padding: .42rem .7rem;
    margin-left: 0;
    border-left: none;
    border-radius: .4rem;
    font-size: .78rem;
    min-height: 30px;
  }

  .sidebar-sub-item.active {
    background: rgba(202, 28, 29, 0.1);
  }

  .sidebar-sub-item .dot {
    display: none;
  }

  .sidebar-item {
    padding: .35rem .6rem;
    margin-left: 0;
    border-left: none;
    border-radius: .3rem;
    font-size: .78rem;
  }

  .sidebar-item.active {
    background: rgba(202, 28, 29, 0.1);
  }

  .sidebar-item .dot {
    display: none;
  }

  .sidebar-title {
    padding: 0 1rem .5rem;
    margin-bottom: .5rem;
  }

  .sidebar-all {
    margin: 1.25rem 1rem 0;
  }
}

@media (max-width: 768px) {
  .products-content .products-grid {
    grid-template-columns: 1fr;
  }

  /* 产品列表页内容区间距优化 */
  .product-main .breadcrumb,
  .products-main .breadcrumb {
    margin-bottom: 1.5rem;
  }
  .product-main .product-category-title,
  .products-main .category-title,
  .products-main h2.category-title,
  .product-main h2.product-category-title {
    margin-bottom: .75rem;
  }
  .product-main .product-category-desc,
  .products-main .category-desc {
    margin-bottom: 1.75rem;
    line-height: 1.75;
  }
  .product-list-section .products-grid {
    gap: 1.5rem;
  }
}

/* 分类页内容区样式（.product-main 由子代理写入） */
.product-main {
  min-width: 0;
}

.product-main .breadcrumb {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .8rem;
  color: var(--gray-400);
  margin-bottom: 1.5rem;
}

.product-main .breadcrumb a {
  color: var(--gray-400);
  text-decoration: none;
}

.product-main .breadcrumb a:hover {
  color: var(--primary-dark);
}

.product-main .breadcrumb .current {
  color: var(--primary-dark);
  font-weight: 500;
}

.product-main .product-category-title {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 2rem;
  line-height: 1.3;
}

.product-main .product-category-desc {
  font-size: .92rem;
  color: var(--gray-500);
  line-height: 1.8;
  max-width: 680px;
  margin-bottom: 3rem;
}

/* .products-main 兼容样式（coolant/brake/transmission 页面使用） */
.products-main {
  min-width: 0;
}

.products-main .breadcrumb {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .8rem;
  color: var(--gray-400);
  margin-bottom: 1.5rem;
}

.products-main .breadcrumb a {
  color: var(--gray-400);
  text-decoration: none;
}

.products-main .breadcrumb a:hover {
  color: var(--primary-dark);
}

.products-main .breadcrumb .current {
  color: var(--primary-dark);
  font-weight: 500;
}

.products-main .category-title,
.products-main h2.category-title {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 2rem;
  line-height: 1.3;
}

.products-main .category-desc {
  font-size: .92rem;
  color: var(--gray-500);
  line-height: 1.8;
  max-width: 680px;
  margin-bottom: 3rem;
}

/* h2 版本保持与 h1 相同的视觉样式 */
.product-main h2.product-category-title {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 2rem;
  line-height: 1.3;
}

.products-content h2 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: .5rem;
  line-height: 1.3;
}