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

:root {
  --primary: #008744;       /* 提取自企业Logo深绿主色（稳健环保） */
  --primary-hover: #006b36;
  --secondary: #00bbd7;     /* 提取自企业Logo水波天青蓝（科技与清新） */
  --accent: #00b957;        /* 提取自企业Logo鲜活叶绿 */
  --accent-light: #a1d660;  /* 提取自企业Logo浅绿萌芽色 */
  --accent-gradient: linear-gradient(135deg, #008744 0%, #00bbd7 100%);
  --btn-gradient: linear-gradient(135deg, #00994d 0%, #00b8c9 100%);
  --btn-hover-gradient: linear-gradient(135deg, #00b8c9 0%, #00994d 100%);
  --dark: #111216;
  --text-main: #333333;
  --text-muted: #5e6d65;
  --text-light: #8fa096;
  --bg-light: #f4faf6;
  --bg-white: #ffffff;
  --border: #dbebe2;
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  --transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
  --shadow-sm: 0 4px 12px rgba(0, 135, 68, 0.05);
  --shadow-md: 0 8px 24px rgba(0, 135, 68, 0.09);
  --shadow-hover: 0 16px 36px rgba(0, 187, 215, 0.2);
}

body {
  font-family: var(--font-family);
  color: var(--text-main);
  background-color: var(--bg-white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

ul, ol {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 顶部导航栏 - 未滚动时透明，滚动后变白吸顶 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: background-color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
  background: transparent;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: none;
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 135, 68, 0.12);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 85px;
  transition: height 0.3s ease;
}

.site-header.scrolled .header-inner {
  height: 75px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  transition: transform 0.3s ease, filter 0.4s ease, opacity 0.4s ease;
  filter: brightness(0) invert(1); /* 未滚动透明背景时呈现纯白Logo */
  opacity: 0.95;
}

.site-header.scrolled .logo-img {
  filter: none; /* 滚动后恢复Logo原生品牌色彩 */
  opacity: 1;
}

.site-logo:hover .logo-img {
  transform: rotate(15deg) scale(1.05);
}

.logo-text-wrap {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 1px;
  line-height: 1.2;
  transition: color 0.3s ease;
}

.site-header.scrolled .logo-title {
  color: var(--primary);
}

.logo-sub {
  font-size: 10px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  transition: color 0.3s ease;
}

.site-header.scrolled .logo-sub {
  color: var(--text-light);
}

/* 主导航 - 整体向右靠拢对齐 */
.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
  height: 100%;
  margin-left: auto;
}

.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.92);
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0 4px;
  letter-spacing: 0.5px;
  transition: color 0.3s ease;
}

.site-header.scrolled .nav-link {
  color: #2c3e50;
}

/* 导航底部的指示条（指针）：精确定位在导航栏底部的白线上 */
.nav-link::after {
  content: "";
  position: absolute;
  bottom: -1px; /* 紧贴并覆盖在底部分割线上 */
  left: 0;
  width: 0;
  height: 3px;
  background: #ffffff; /* 未滚动透明大屏时呈现纯白色指针 */
  box-shadow: none;
  transition: var(--transition);
  border-radius: 3px 3px 0 0;
  z-index: 2;
}

/* 滚动吸顶白底后，指针切换为企业品牌双色渐变 */
.site-header.scrolled .nav-link::after {
  background: var(--btn-gradient);
  box-shadow: none;
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
}

.site-header.scrolled .nav-link:hover, .site-header.scrolled .nav-link.active {
  color: var(--primary);
}

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

.menu-toggle span {
  width: 24px;
  height: 2px;
  background-color: #ffffff;
  transition: var(--transition);
}

.site-header.scrolled .menu-toggle span {
  background-color: var(--dark);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.action-btn-primary {
  padding: 9px 24px;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: var(--btn-gradient);
  box-shadow: 0 4px 14px rgba(0, 187, 215, 0.35);
  display: inline-block;
  cursor: pointer;
  border: none;
}

.action-btn-primary:hover {
  transform: translateY(-2px);
  background: var(--btn-hover-gradient);
  box-shadow: 0 6px 20px rgba(0, 153, 77, 0.45);
}

/* 轮播大屏 Hero Banner - 高度加大100px */
.hero-slider-section {
  position: relative;
  height: calc(92vh + 100px);
  min-height: 700px;
  background-color: #0b1528;
  overflow: hidden;
}

.slider-container {
  position: relative;
  width: 100%;
  height: 100%;
  background: transparent;
}

.slide-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  z-index: 1;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.slide-item.active {
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

/* 碎片化百叶窗式渐出容器：绝对定位精准覆盖，杜绝缝隙 */
.slice-shards-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
}

.slice-shard {
  position: absolute;
  top: 0;
  height: 100%;
  overflow: hidden;
  opacity: 0;
  transform: translateY(35px) scaleY(1.05);
  filter: blur(8px);
  transition: opacity 0.85s cubic-bezier(0.2, 0.8, 0.2, 1),
              transform 0.95s cubic-bezier(0.2, 0.8, 0.2, 1),
              filter 0.85s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: transform, opacity, filter;
}

.slice-shard-inner {
  position: absolute;
  top: 0;
  height: 100%;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
}

/* 当幻灯片激活时，各碎片按交错延迟逐步拼合百叶窗渐出 */
.slide-item.active .slice-shard {
  opacity: 1;
  transform: translateY(0) scaleY(1);
  filter: blur(0);
}

.slide-overlay {
  display: none;
}

.slide-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, calc(-50% - 90px));
  width: 100%;
  max-width: 1200px;
  color: #fff;
  z-index: 10;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
}

.slide-title {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 4px;
  margin: 0 auto;
  max-width: 1000px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.28);
  opacity: 0;
  transform: translateY(50px);
  filter: blur(10px);
  transition: opacity 1.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 1.8s cubic-bezier(0.16, 1, 0.3, 1),
              filter 1.6s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity, filter;
}

/* 轮播激活时更加缓慢优雅地浮现 */
.slide-item.active .slide-title {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
  transition-delay: 0.4s;
}

.slide-desc {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  max-width: 720px;
  margin-bottom: 36px;
  letter-spacing: 0.5px;
}

.slide-btn-group {
  display: flex;
  gap: 16px;
}

.btn-banner-main {
  padding: 13px 36px;
  border-radius: 28px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 1px;
  color: #fff;
  background: var(--btn-gradient);
  box-shadow: 0 4px 15px rgba(0, 187, 215, 0.4);
}

.btn-banner-main:hover {
  transform: translateY(-3px);
  background: var(--btn-hover-gradient);
  box-shadow: 0 8px 24px rgba(0, 153, 77, 0.55);
}

.btn-banner-outline {
  padding: 13px 36px;
  border-radius: 28px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 1px;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(4px);
}

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

/* 轮播指示器：简约小正方形风格 */
.slider-controls {
  position: absolute;
  bottom: 58px;
  left: 0;
  width: 100%;
  z-index: 20;
}

.slider-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

.slider-dot {
  width: 11px;
  height: 11px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  user-select: none;
}

.slider-dot:hover {
  background: rgba(255, 255, 255, 0.7);
  transform: scale(1.15);
}

/* 激活选中态：实心纯白小方块（无外发光） */
.slider-dot.active {
  width: 13px;
  height: 13px;
  background: #ffffff;
  border-color: #ffffff;
  box-shadow: none;
  transform: scale(1.1);
}

/* 统计数据条 Data Bar */
.data-bar-section {
  position: relative;
  z-index: 30;
  margin-top: -50px;
}

.data-bar-grid {
  background: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 30px 40px;
  border: 1px solid var(--border);
}

.data-item {
  display: flex;
  flex-direction: column;
  position: relative;
  padding: 0 20px;
}

.data-item:not(:last-child)::after {
  content: "";
  position: absolute;
  right: 0;
  top: 15%;
  height: 70%;
  width: 1px;
  background: var(--border);
}

.data-value {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.data-number {
  font-size: 38px;
  font-weight: 800;
  color: var(--primary);
  font-family: "Helvetica Neue", Arial, sans-serif;
}

.data-unit {
  font-size: 16px;
  font-weight: 600;
  color: var(--accent);
}

.data-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 6px;
}

/* 公用区段头部 Section Header */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-subtitle {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2.5px;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 10px;
  display: inline-block;
}

.section-title {
  font-size: 34px;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: 1px;
  position: relative;
  display: inline-block;
  padding-bottom: 16px;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 3px;
  background: var(--accent-gradient);
  border-radius: 3px;
}

.section-desc-text {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 650px;
  margin: 16px auto 0;
  line-height: 1.7;
}

/* ========================================================
   关于我们板块 About Section (仿清新环境滚动缩放镂空剪影交互)
   ======================================================== */
.about-scroll-wrapper {
  position: relative;
  height: 260vh;
  background: #ffffff;
  z-index: 5;
}

.about-sticky-box {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 底层全屏背景图与半透压暗滤镜（随镂空放大逐步清晰显现） */
.about-bg-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  z-index: 1;
}

.about-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(8, 25, 18, 0.32) 0%, rgba(12, 40, 32, 0.28) 100%);
  backdrop-filter: blur(0px);
}

/* 中间镂空Logo遮罩层：纯白背景 + 企业Logo剪影镂空 */
.about-logo-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  z-index: 2;
  transform-origin: 50% 48.6%;
  transform: scale(1);
  opacity: 1;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  will-change: transform, opacity;
  pointer-events: none;
  transition: opacity 0.25s ease-out;
}

/* 顶层公司介绍文字卡片层（随滚动渐显） */
.about-content-wrap {
  position: relative;
  z-index: 3;
  width: 100%;
  padding: 80px 0;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.4s ease-out, transform 0.4s ease-out;
  pointer-events: none;
}

.about-content-wrap.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.about-inner-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
  border: none;
  max-width: 980px;
  margin: 0 auto;
}

.about-card-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
}

.about-meta-tag {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.meta-tag-pill {
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: var(--btn-gradient);
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: 1.5px;
}

.meta-code {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.meta-code strong {
  color: #00d27a;
  letter-spacing: 0.5px;
}

.about-hero-title {
  font-size: 48px;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: 24px;
  letter-spacing: 1px;
  text-shadow: 0 3px 18px rgba(0, 0, 0, 0.55);
  text-align: center;
}

.about-lead-desc {
  font-size: 18px;
  line-height: 2.1;
  color: #ffffff;
  margin-bottom: 30px;
  font-weight: 400;
  letter-spacing: 0.5px;
  text-shadow: none;
  text-align: center;
  text-align-last: center;
}

.about-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  gap: 18px;
}

.about-actions .action-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 15px;
  border-radius: 28px;
}

.about-actions .action-btn-primary .btn-arrow {
  display: inline-block;
  font-style: normal;
  font-weight: 700;
  font-size: 16px;
  transform: rotate(-45deg);
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.about-actions .action-btn-primary:hover .btn-arrow {
  transform: rotate(0deg);
}

.about-btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  border-radius: 28px;
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  border: 1.5px solid rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(4px);
  transition: all 0.3s ease;
}

.about-btn-ghost:hover {
  background: #ffffff;
  color: var(--primary);
  border-color: #ffffff;
  transform: translateY(-2px);
}

.about-stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.stat-card {
  background: rgba(15, 30, 24, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 24px 22px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  background: rgba(15, 30, 24, 0.65);
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.35);
  border-color: rgba(0, 210, 122, 0.5);
}

.stat-num-box {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.stat-num {
  font-size: 38px;
  font-weight: 800;
  color: #ffffff;
  font-family: "Helvetica Neue", Arial, sans-serif;
  line-height: 1;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.stat-unit {
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
}

.stat-name {
  font-size: 14px;
  font-weight: 700;
  color: #ffffff;
  margin: 12px 0 6px;
  letter-spacing: 0.5px;
}

.stat-tip {
  font-size: 12px;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.72);
}

/* 主营业务板块 Business Section */
.biz-section {
  padding: 90px 0;
  background-color: var(--bg-light);
}

.biz-section .section-title {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: 1px;
  padding-bottom: 0;
}

.biz-section .section-title::after {
  display: none;
}

.biz-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.biz-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
}

.biz-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(25, 75, 160, 0.2);
}

.biz-img-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
}

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

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

.biz-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.biz-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
  transition: var(--transition);
}

.biz-card:hover .biz-card-title {
  color: var(--primary);
}

.biz-card-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 45px;
}

.biz-more-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
}

.biz-more-link .biz-more-arrow {
  display: inline-block;
  font-style: normal;
  font-weight: 700;
  font-size: 15px;
  transform: rotate(-45deg);
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

.biz-more-link:hover .biz-more-arrow,
.biz-card:hover .biz-more-arrow {
  transform: rotate(0deg);
}

/* 核心技术与解决方案 Solution Tabs Section (大标题 + 一段文字介绍) */
.solutions-section {
  position: relative;
  min-height: calc(85vh + 160px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 140px 0 100px;
  overflow: visible;
}

.solutions-bg-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  z-index: 1;
}

.solutions-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(8, 25, 20, 0.22) 0%, rgba(12, 38, 30, 0.18) 100%);
  backdrop-filter: blur(0px);
}

.solutions-container-inner {
  position: relative;
  z-index: 2;
}

.solutions-header-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.solutions-intro-block {
  max-width: 980px;
  margin: 0 auto;
  text-align: center;
}

.solutions-main-title {
  font-size: 48px;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: 24px;
  letter-spacing: 1px;
  text-shadow: none;
  text-align: center;
}

.solutions-main-summary {
  font-size: 18px;
  line-height: 2.1;
  color: #ffffff;
  font-weight: 400;
  letter-spacing: 0.5px;
  text-shadow: none;
  text-align: center;
  text-align-last: center;
}

.solutions-main-summary strong {
  color: #ffffff;
  font-weight: 600;
}

.solutions-visual-graphic {
  flex-shrink: 0;
  width: 240px;
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.92;
  filter: drop-shadow(0 10px 24px rgba(0, 210, 122, 0.15));
}

.eco-circle-svg {
  width: 100%;
  height: 100%;
}

@media (max-width: 991px) {
  .solutions-header-layout {
    flex-direction: column;
    text-align: left;
  }
  .solutions-visual-graphic {
    display: none;
  }
}

/* 综合实力 Features Strip - 青云官网黑色条状悬浮卡片交互 (GPU 高性能纯 Transform 方案) */
.solutions-strip-wrapper {
  margin-top: 240px;
  position: relative;
  z-index: 10;
  width: 100%;
}

.strip-grid {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  background: rgba(18, 22, 28, 0.95);
  border-radius: 4px;
  overflow: visible;
  height: 120px;
  box-shadow: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
}

.strip-item {
  flex: 1;
  height: 120px;
  padding: 0 28px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: left;
  cursor: pointer;
  position: relative;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

.strip-item:last-child {
  border-right: none;
}

/* 核心优化：利用伪元素承载绿色渐变与尺寸扩展，纯 GPU transform 驱动，彻底告别重排/掉帧 */
.strip-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, #106b5f 0%, #009d6c 100%);
  border-radius: 4px;
  opacity: 0;
  pointer-events: none;
  z-index: 1;
  transform: scaleY(0.65);
  transform-origin: center center;
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.25, 1), opacity 0.25s ease;
}

.strip-item:first-child::before {
  left: -1px;
}

.strip-item:last-child::before {
  right: -1px;
}

.strip-item-header {
  display: flex;
  flex-direction: row;
  align-items: center;
  margin-bottom: 8px;
  position: relative;
  z-index: 2;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), margin-bottom 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.strip-icon {
  width: 22px;
  height: 22px;
  min-width: 22px;
  margin: 0 10px 0 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  background: transparent;
  border: none;
  border-radius: 0;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.strip-icon svg {
  width: 22px;
  height: 22px;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.strip-title {
  font-size: 16px;
  font-weight: 500;
  line-height: 24px;
  color: #ffffff;
  margin-bottom: 0;
  letter-spacing: 0.2px;
  transition: font-size 0.35s ease;
}

.strip-desc {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  position: relative;
  z-index: 2;
  transition: color 0.35s ease, transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 鼠标悬停交互：从中心向上下两端放大，图标与主标题转为上下分两行（垂直排布且图标加大放大），完全同步青云原版 */
@media (min-width: 1024px) {
  .strip-item:hover {
    z-index: 10;
  }

  .strip-item:hover::before {
    opacity: 1;
    transform: scaleY(1.58);
  }

  .strip-item:hover .strip-item-header {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 8px;
    transform: translateY(-8px);
  }

  .strip-item:hover .strip-icon {
    width: 32px;
    height: 32px;
    margin: 0 0 8px 0;
  }

  .strip-item:hover .strip-icon svg {
    width: 30px;
    height: 30px;
  }

  .strip-item:hover .strip-title {
    font-size: 16.5px;
  }

  .strip-item:hover .strip-desc {
    color: #ffffff;
    transform: translateY(2px);
  }
}

@media (max-width: 1023px) {
  .strip-grid {
    flex-direction: column;
    height: auto;
  }
  .strip-item {
    height: auto;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  .strip-item:last-child {
    border-bottom: none;
  }
}

/* 新闻与行业动态 News Section */
.news-section {
  padding: 90px 0;
  background: #ffffff;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.news-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.news-img {
  height: 200px;
  overflow: hidden;
}

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

.news-card:hover .news-img img {
  transform: scale(1.06);
}

.news-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

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

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

.news-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.45;
  margin-bottom: 12px;
  transition: var(--transition);
}

.news-card:hover .news-title {
  color: var(--primary);
}

.news-summary {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 18px;
  flex-grow: 1;
}

/* 页脚 Footer 区域样式 */
.site-footer {
  background: #151c2c;
  color: #adb5bd;
  padding: 70px 0 0;
  border-top: 3px solid var(--primary);
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top-grid .footer-col:last-child {
  justify-self: end;
  text-align: left;
}

.footer-top-grid .footer-col:nth-child(2) {
  justify-self: end;
  text-align: left;
  transform: translateX(50px);
}

.footer-col-about h4 {
  font-size: 18px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.footer-col-about p {
  font-size: 14px;
  line-height: 1.8;
  color: #8b95a5;
  margin-bottom: 20px;
}

.footer-col h5 {
  font-size: 16px;
  color: #fff;
  font-weight: 600;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h5::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--accent);
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 14px;
  color: #8b95a5;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #ffffff;
  padding-left: 5px;
}

.footer-cert-tags {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cert-tag-item {
  font-size: 13px;
  color: #9aa3b2;
  background: rgba(255, 255, 255, 0.04);
  padding: 8px 12px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: #727b8a;
}

.footer-bottom a {
  color: #727b8a;
  margin-left: 12px;
}

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

/* 移动端菜单汉堡按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--dark);
  transition: var(--transition);
}

/* 响应式适配 */
@media (max-width: 1024px) {
  .biz-grid, .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }
  .strip-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 70px;
  }
  .main-nav {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .slide-title {
    font-size: 32px;
  }
  .slide-desc {
    font-size: 15px;
  }
  .data-bar-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    padding: 24px;
  }
  .data-item:not(:last-child)::after {
    display: none;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .biz-grid, .news-grid {
    grid-template-columns: 1fr;
  }
  .tab-pane {
    grid-template-columns: 1fr;
    padding: 24px;
  }
  .about-inner-card {
    grid-template-columns: 1fr;
    padding: 32px 24px;
    gap: 30px;
  }
  .about-hero-title,
  .solutions-main-title {
    font-size: 26px;
  }
  .about-stat-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .strip-grid {
    grid-template-columns: 1fr;
  }
  .footer-top-grid {
    grid-template-columns: 1fr;
  }
}