/* --- 基础重置与高端工业变量 --- */
:root {
    --bg-white: #ffffff;
    /* 极致白 */
    --bg-dark: #0d1117;
    /* 深钛黑 */
    --accent-blue: #06255b;
    /* 科技工业蓝 */
    --color-accent: #0077ff; 
    /* 科技工业蓝 */
    --text-light: #e6edf3;
        --color-text-muted: #64748b;
            --color-border: #e2e8f0;
    /* 金属灰白 */
    --text-black: #131313;
     --card-bg: #ffffff;
    /* 黑色字体 */
    --text-muted: #abadaf;
    /* 哑光工业灰 */
    --border-color: #e8ecf1;
    --bg-subtle:#f4fdff;
    /* 机械缝隙线 */
    --font-main: 'PingFang SC', 'Montserrat', sans-serif;
    --color-cyan-400: oklch(78.9% 0.154 211.53);
    --color-black-400: oklch(18.22% 0.00002 271.152);
        --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
            --shadow: 0 10px 30px rgba(0, 82, 204, 0.08);
            --box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    /* 高端商务/科技蓝 */
      --primary-accent: #0066ff;
      --secondary-accent: #3385ff;
      --text-main: #1d1d1f;             /* 接近纯黑的深灰，提升高级感 */
      --text-muted: #86868b;            /* 浅灰色文本 */
      /* 中轴线轨道颜色 */
      --track-color: rgba(0, 102, 255, 0.15); /* 稍微加深一点点虚线的颜色，使其清晰 */
      --card-border: rgba(0, 0, 0, 0.04); 
        --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
            --shadow-hover: 0 20px 35px -10px rgba(0, 119, 255, 0.15);
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
                --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full:50px;
      --color-primary:#06255b;
         --color-primary-light: #e0effe;
             --color-emerald: #10b981;
    --color-emerald-bg: #d1fae5;
            --color-primary-bg: #f0f7ff;
                --color-bg-main: #f8fafc;
                 --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
                 --clr-bg-main: #f8fafc;
      --clr-bg-card: #ffffff;
      --clr-bg-input: #f1f5f9;
      --clr-primary: #0284c7;
      --clr-primary-glow: rgba(2, 132, 199, 0.15);
      --clr-secondary: #0369a1;
      --clr-text-main: #0f172a;
      --clr-text-muted: #64748b;
      --clr-border: #e2e8f0;
      --clr-table-stripe: #f8fafc;
      --clr-highlight: #b45309;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
    font-family: var(--font-main);
    background-color: var(--bg-white);
    color: var(--text-black);
    font-size: calc(100vw/19.2);
}
@media (max-width: 1600px) {
    html {
        font-size: 66px;
    }
}
@media (max-width: 767px) {
    html {
        font-size: 60px;
    }
}
/* 1. 设置极细宽度 */
::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}
/* 2. 彻底隐藏箭头（包含单箭头、双箭头和拐角） */
::-webkit-scrollbar-button,
::-webkit-scrollbar-button:single-button,
::-webkit-scrollbar-button:vertical:decrement,
::-webkit-scrollbar-button:vertical:increment,
::-webkit-scrollbar-button:horizontal:decrement,
::-webkit-scrollbar-button:horizontal:increment {
    display: none;
    width: 0;
    height: 0;
    background: transparent;
}
/* 3. 清除角落交叉区域（避免产生灰块） */
::-webkit-scrollbar-corner {
    background: transparent;
}
/* 4. 轨道背景透明 */
::-webkit-scrollbar-track {
    background: transparent;
}
/* 5. 滑块样式（绿色细线条） */
::-webkit-scrollbar-thumb {
    background-color: #1c5bd7;
    border-radius: 999px;
    min-height: 150px;
}
::-webkit-scrollbar-thumb:hover {
    background-color: #1c5bd7;
}
video {
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
}
.wow {
  will-change: transform, opacity;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  -webkit-font-smoothing: subpixel-antialiased;
}
@-webkit-keyframes fadeInUp {
    0% {
        opacity: 0;
        -webkit-transform: translate3d(0, 60px, 0);
        transform: translate3d(0, 60px, 0);
    }
    to {
        opacity: 1;
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
    }
}
@keyframes fadeInUp {
    0% {
        opacity: 0;
        -webkit-transform: translate3d(0, 60px, 0);
        transform: translate3d(0, 60px, 0);
    }
    to {
        opacity: 1;
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
    }
}
.fadeInUp {
    -webkit-animation-name: fadeInUp;
    animation-name: fadeInUp;
}
@-webkit-keyframes fadeInDown {
    0% {
        opacity: 0;
        -webkit-transform: translate3d(0, -60px, 0);
        transform: translate3d(0, -60px, 0);
    }
    to {
        opacity: 1;
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
    }
}
@keyframes fadeInDown {
    0% {
        opacity: 0;
        -webkit-transform: translate3d(0, -60px, 0);
        transform: translate3d(0, -60px, 0);
    }
    to {
        opacity: 1;
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
    }
}
.fadeInDown {
    -webkit-animation-name: fadeInDown;
    animation-name: fadeInDown;
}
.animated {
    -webkit-animation-duration: 1s;
    animation-duration: 1s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
}
.icon-sm { width: 0.18rem; height: 0.18rem; }
.icon-md { width: 0.2rem; height: 0.2rem; }
.icon-lg { width: 0.3rem; height: 0.3rem; }
body {
    overflow-x: hidden;
}
/* 确保 html 的滚动行为是 auto，否则会与 Lenis 冲突 */
html.lenis,
html.lenis body {
    height: auto;
}
.lenis.lenis-smooth {
    scroll-behavior: auto !important;
}
.lenis.lenis-smooth [data-lenis-prevent] {
    overscroll-behavior: contain;
}
.lenis.lenis-stopped {
    overflow: hidden;
}
.lenis.lenis-scrolling iframe {
    pointer-events: none;
}
a {
    text-decoration: none;
    color: inherit;
}
ul {
    list-style: none;
}
/* --- 顶级导航栏样式 --- */
/* --- 导航栏基础样式（默认透明） --- */
.site-header {
    position: fixed;
    top: 30px;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    backdrop-filter: blur(0px);
    background: rgba(0, 0, 0, 0.2);
}
/* --- 上滚激活状态（变白、带模糊、带阴影、文字变深） --- */
.site-header.scrolled-active {
    background: #fff;
    /* 变白 */
    backdrop-filter: blur(12px);
    top: 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}
/* 状态切换时的文字颜色适配 */
.site-header.scrolled-active .logo {
    color: #0d1117;
}
.site-header.scrolled-active .getWe a:hover span {
    color: var(--accent-blue);
}
.site-header.scrolled-active .nav-list>li>a {
    color: #555;
}
.site-header.scrolled-active .nav-list>li:hover>a {
    color: #007aff;
}
.site-header.scrolled-active .arrow {
    fill: #555;
}
.site-header.scrolled-active .nav-toggle span {
    background: #0d1117;
}
/* 手机端三道杠变黑 */
.site-header.scrolled-active .nav-list>li:hover>a {
    color: #007aff;
}
.header-container {
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 24px;
    font-weight: 900;
    letter-spacing: 2px;
    color: #fff;
}
.logoLink {
    padding: 0.1rem 4%;
    font-size: 0.1rem;
}
.logo-img {
    width: 150px;
    height: auto;
}
.cont-us {
    display: block;
    border: 1px solid #fff;
    padding: 0.2rem 0.3rem;
}
.scrolled-active .logo-img {
    filter: brightness(1);
}
.r-box {
    margin-right: 4%;
}
/* 一级菜单 */
.nav-list {
    display: flex;
    align-items: center;
    gap: 80px;
}
.nav-list>edit,
.nav-list>li {
    position: relative;
}
.nav-list>li>a {
    font-size: 20px;
    font-weight: 400;
    letter-spacing: 1px;
    padding: 10px 0;
    color: var(--bg-white);
    transition: color 0.3s;
    display: flex;
    align-items: center;
}
.nav-list>li:hover>a,
.nav-list>li>a.active {
    color: #fff;
}
.arrow {
    display: inline-block;
    fill: var(--text-light);
    transition: transform 0.3s;
    width: 12px;
    margin-left: 5px;
}
.nav-list>li:hover .arrow {
    border-top-color: #ffffff;
    transform: rotate(180deg);
}
.scrolled-active li:hover .arrow {
    border-top-color: #1766cd;
    transform: rotate(180deg);
}
/* 二级下拉菜单 */
.dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(15px);
    width: 288px;
    background: rgb(18 29 44 / 71%);
    border-top: 2px solid #2f5fed;
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}
.has-dropdown:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.dropdown a {
    display: block;
    padding: 12px 20px;
    font-size: 16px;
    color: var(--text-light);
    transition: all 0.3s;
}
.dropdown a:hover {
    background: rgba(0, 122, 255, 0.1);
    color: #fff;
    padding-left: 25px;
}
/* 手机端汉堡包按钮 (默认隐藏) */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
}
.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: #fff;
    transition: 0.3s;
}
/* --- 首屏重工业巨幕 --- */
.hero-section {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 10%;
    overflow: hidden;
        background: #f4fdff;
}
/* 模拟钛金工业质感背景图 */
/* --- 首屏重工业视频巨幕 --- */
.hero-section {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 10%;
    overflow: hidden;
}
/* 视频容器与高级工业滤镜 */
.hero-video-wrap {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}
.hero-video {
    width: 100%;
    height: 100vh;
    object-fit: cover;
    /* 确保视频完美裁剪填充，不拉伸变形 */
    /* 渐变遮罩：左侧深色便于看清文字，整体压暗突出高端暗黑工厂质感 */
}
/* 遮罩层：双重保障文字清晰度 */
.hero-video-wrap::after, .video-container:after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(13, 17, 23, 0.8) 20%, rgba(13, 17, 23, 0.3) 70%);
}
.hero-content {
    max-width: 1130px;
    position: relative;
    z-index: 2;
}
.hero-content .btn-explore {
    color: var(--bg-white);
    font-size: 0.22rem;
    font-weight: 300;
    width: 2.8rem;
    height: 0.7rem;
}
.hero-content .btn-explore::before {
    width: 0.7rem;
    height: 0.7rem;
}
.hero-content .btn-explore .icon {
    width: 42px;
}
.hero-content .btn-explore .icon svg {
    width: 40px;
}
.hero-title {
    font-size: clamp(36px, 5vw, 80px);
 
    color: var(--bg-white);
    font-weight: 300;
}
.hero-subtitle {
    font-size: clamp(26px, 2vw, 20px);
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.6;
}
/* 按钮容器 */
.btn-explore {
    position: relative;
    display: inline-flex;
    align-items: center;
    height: 50px;
    padding: 0 24px 0 16px;
    border-radius: 25px;
    cursor: pointer;
    text-decoration: none;
    color: var(--accent-blue);
    font-weight: 500;
    overflow: hidden;
    user-select: none;
    width: 2rem;
    font-size: 0.18rem;
}
.btn-explore:hover {
    color: #fff;
}
.btn-explore::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 50px;
    /* 初始状态：与按钮高度一致的圆球 */
    height: 100%;
    background-color: var(--accent-blue);
    border-radius: 1rem;
    z-index: 1;
    /* 宽度过渡动画 */
    transition: width 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}
/* 鼠标悬停时：背景宽度从 50px 展开至 100% */
.btn-explore:hover::before {
    width: 100%;
}
/* 图标样式 */
.btn-explore .icon {
    position: relative;
    z-index: 2;
    /* 保证图标在背景层之上 */
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 100%;
    margin-right: 0.24rem;
    transition: transform 0.3s ease;
}
.btn-explore .icon svg {
    width: 22px;
    height: 22px;
    fill: none;
    stroke: #ffffff;
    stroke-width: 1;
    stroke-linecap: round;
    stroke-linejoin: round;
}
/* 悬停微调效果：图标轻微向右移动增加灵动感（可选） */
.btn-explore:hover .icon {
    transform: translateX(2px);
}
/* 文本内容 */
.btn-explore .text {
    position: relative;
    z-index: 2;
    /* 保证文字在背景层之上 */
    white-space: nowrap;
    letter-spacing: 0.5px;
}
/* 悬停微调效果：图标轻微向右移动增加灵动感（可选） */
.btn-explore:hover .icon {
    transform: translateX(2px);
}
.hero-section .scrolldot {
    width: 23px;
    height: 40px;
    position: absolute;
    bottom: 50px;
    right: 0;
    left: 0;
    margin: 0 auto;
    z-index: 10;
    font-size: 14px;
    color: #fff;
    background: url(../images/banner-mouse.png) no-repeat -23px 0px;
    text-align: center;
    animation: nudgeMouse 1.6s linear infinite;
}
.hero-section .scrolldot:after,
.hero-section .scrolldot::before {
    content: "";
    position: absolute;
}
.hero-section .scrolldot::before {
    width: 23px;
    height: 40px;
    background: url(../images/banner-mouse.png) no-repeat 0px 0px;
    -webkit-animation: colorSlide 1.6s linear infinite;
    animation: colorSlide 1.6s linear infinite;
    top: 0;
    left: 0;
}
.hero-section .scrolldot:after {
    background-color: #ffffff;
    width: 4px;
    height: 4px;
    border-radius: 100%;
    -webkit-animation: trackBallSlide 1.6s linear infinite;
    animation: trackBallSlide 1.6s linear infinite;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    margin: auto;
}
@keyframes colorSlide {
    0% {
        height: 0;
    }
    90% {
        height: 40px;
    }
}
@keyframes nudgeMouse {
    0% {
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
    50% {
        -webkit-transform: translateY(8px);
        transform: translateY(8px);
    }
    100% {
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
}
@keyframes trackBallSlide {
    0% {
        opacity: 1;
        -webkit-transform: scale(1) translateY(-8px);
        transform: scale(1) translateY(-8px);
    }
    34% {
        opacity: 1;
        -webkit-transform: scale(1) translateY(4px);
        transform: scale(1) translateY(4px);
    }
    68% {
        opacity: 0.2;
        -webkit-transform: scale(1) translateY(16px);
        transform: scale(1) translateY(16px);
    }
    100% {
        opacity: 0.2;
        -webkit-transform: scale(1) translateY(-8px);
        transform: scale(1) translateY(-8px);
    }
}
.getWe {
    display: flex;
    position: relative;
    z-index: 2;
}
.getWe a::before {
    content: '';
    width: 100%;
    height: 45px;
    border-radius: 25px;
    background: var(--accent-blue);
    transition: all 0.4s;
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    z-index: -1;
    pointer-events: none;
}
.getWe a {
    height: 45px;
    display: flex;
    align-items: center;
    padding: 0 20px 0 25px;
    border-radius: 25px;
    position: relative;
}
.getWe a span {
    color: #fff;
    font-size: 0.18rem;
    transition: all 0.4s;
}
.getWe a i svg {
    width: 40%;
    height: 40%;
    animation: Run 5s infinite;
}
.getWe a i svg path {
    fill: #fff;
    transition: all 0.4s;
}
.getWe a i {
    width: 23px;
    height: 23px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-left: 10px;
    transition: all 0.4s;
    overflow: hidden;
}
.getWe a:hover::before {
    width: 45px;
}
.getWe a:hover i {
    transform: translateX(9px);
}
.getWe a:hover i svg path {
    fill: #fff;
}
@keyframes Run {
    0% {
        transform: translate3d(0%, 0%, 0px) scale3d(1, 1, 1) rotateX(0deg) rotateY(0deg) rotateZ(0deg) skew(0deg, 0deg);
        transform-style: preserve-3d;
    }
    7% {
        transform: translate3d(150%, -150%, 0px) scale3d(1, 1, 1) rotateX(0deg) rotateY(0deg) rotateZ(0deg) skew(0deg, 0deg);
        transform-style: preserve-3d;
    }
    7.1% {
        transform: translate3d(-150%, 150%, 0px) scale3d(1, 1, 1) rotateX(0deg) rotateY(0deg) rotateZ(0deg) skew(0deg, 0deg);
        transform-style: preserve-3d;
    }
    14% {
        transform: translate3d(0%, 0%, 0px) scale3d(1, 1, 1) rotateX(0deg) rotateY(0deg) rotateZ(0deg) skew(0deg, 0deg);
        transform-style: preserve-3d;
    }
}
@keyframes textRun {
    to {
        background-position: 200% center;
    }
}
.section-title {
    font-size: 42px;
    font-weight: normal;
    color: #111;
    margin-bottom: 24px;
    text-align: center;
}
.btn {
    padding: 15px 35px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}
.btn-primary {
    background: var(--accent-blue);
    color: #fff;
}
.btn-primary:hover {
    background: #0062cc;
    box-shadow: 0 0 20px rgba(0, 122, 255, 0.4);
}
.btn-secondary {
    border-color: var(--text-muted);
    color: #fff;
}
.btn-secondary:hover {
    background: #fff;
    color: var(--bg-dark);
}
/* 左侧内容样式 */
.left-content {
    display: flex;
    flex-direction: column;
}
.subtitle {
    font-size: 0.4rem;
    color: #444;
}
.main-title {
    font-size: 0.48rem;
    line-height: 0.8rem;
    color: #000;
    font-weight: 400;
    padding: 0.4rem 0;
    letter-spacing: -0.5px;
}
.description {
    font-size: 0.18rem;
    line-height: 1.8;
    color: #666666;
    margin-bottom: 40px;
    text-align: justify;
}
.btn-more {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    color: #333333;
    font-size: 0.18rem;
    font-weight: 400;
    transition: opacity 0.2s ease;
}
.btn-more:hover {
    opacity: 0.8;
}
.btn-icon {
    width: 36px;
    height: 36px;
    background-color: var(--accent-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
}
.btn-icon svg {
    width: 14px;
    height: 14px;
    fill: #ffffff;
}
/* 右侧网格数据样式 */
.right-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px 30px;
}
.stat-card {
    border-top: 1px solid #e2e8e4;
    padding-top: 30px;
    display: flex;
    flex-direction: column;
}
.stat-icon {
    width: 50px;
    height: 50px;
    margin-bottom: 15px;
}
.stat-number-box {
    font-size: 0.56rem;
    font-weight: 400;
    color: var(--accent-blue);
    line-height: 1;
    margin: 0.2rem 0;
    display: flex;
    align-items: flex-start;
}
.business-section {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    overflow: hidden;
}
/* 中间图片展示区域 */
.display-area {
    position: relative;
    width: 100%;
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}
.bg-image {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
    pointer-events: none;
}
/* 激活显示的图片 */
.bg-image.active {
    opacity: 1;
    transform: translateY(0);
}
/* 底部导航分类菜单 */
.business-section .category-nav {
    width: 100%;
    display: flex;
    justify-content: center;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(4px);
    z-index: 2;
    position: absolute;
    bottom: 0;
}
.nav-item {
    flex: 1;
    max-width: 200px;
    text-align: center;
    padding: 24px 0;
    font-size: 18px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    position: relative;
    transition: color 0.3s ease, background-color 0.3s ease;
    border-right: 1px solid rgba(255, 255, 255, 0.15);
}
.nav-item:last-child {
    border-right: none;
}
/* 悬停及激活效果 */
.nav-item:hover,
.nav-item.active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
}
/* 底部高亮边框线 */
.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: #ffffff;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.nav-item:hover::after,
.nav-item.active::after {
    opacity: 1;
}
/* 平滑滚轮核心样式 */
.scroll-number {
    display: inline-flex;
    height: 56px;
    /* 匹配字体高度 */
    overflow: hidden;
}
.digit-col {
    display: flex;
    flex-direction: column;
    transition: transform 2.5s cubic-bezier(0.12, 0.8, 0.2, 1);
    will-change: transform;
}
.digit-col span {
    height: 56px;
    line-height: 56px;
    text-align: center;
}
.stat-number-box .unit {
    font-size: 0.26rem;
    font-weight: 600;
    margin-left: 2px;
    margin-top: 6px;
 
}
.stat-label {
    font-size: 0.20rem;
    color: #444444;
}
.scroll-container {
    height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    padding: 0 40px;
}
.inner-content {
    width: 100%;
    max-width: 1640px;
    margin: 0 auto;
    position: relative;
    padding-bottom: 1.25rem;
    /* 为右下角按钮留出空间 */
}
/* 顶部小标题文本 */
.section-intro {
    margin-bottom: 40px;
    padding-left: 10px;
}
.section-intro p {
    color: #e0e0e0;
    font-size: 1.1rem;
    letter-spacing: 1px;
}
/* 强制所有卡片宽度为 440px，且外观完全一致（不变灰、不缩放） */
.swiper-slide {
    width: 440px !important;
    box-sizing: border-box;
    flex-shrink: 0;
    opacity: 1 !important;
    /* 保持正常不透明度 */
    transform: none !important;
    /* 保持原样大小，不缩放 */
}
/* Swiper 容器允许溢出，确保右侧能看到后续卡片 */
.mySwiper {
    width: 100%;
    overflow: visible !important;
}
/* 单个产品卡片样式 */
.product-card {
    background: #ffffff;
    border-radius: 24px;
    color: #333;
    overflow: hidden;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 480px;
    transition: all .3s;
}
.product-nav {
    position: relative;
    top: 1.2rem;
}
.mySwiper .swiper-slide:hover .product-card {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}
.mySwiper .swiper-slide:hover .card-media {
    display: flex;
}
.mySwiper .swiper-slide:hover .card-info h2 {
    transform: translate(0px, calc(3.2rem - 100%));
    position: relative;
    z-index: 3;
    color: #fff;
}
.mySwiper .swiper-slide:hover .more-btn span {
    display: none;
}
.mySwiper .swiper-slide:hover .more-btn {
    transform: translate(0px, calc(2.95rem - 100%));
    position: absolute;
    z-index: 3;
    right: 40px;
}
.mySwiper .swiper-slide:hover .more-btn .btn-arrow:before {
    content: "";
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 131.818%;
    height: 131.818%;
    border-radius: 50%;
    border: 3px dashed rgb(19, 66, 224);
    animation: taR 5s linear infinite;
}
@keyframes taR {
    from {
        transform: translate(-50%, -50%) rotate(0)
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg)
    }
}
/* 左侧文字区域 */
.card-info {
    flex: 1;
    padding-right: 40px;
    display: flex;
    flex-direction: column;
    height: 100%;
    justify-content: space-between;
    text-align: left;
    padding: 40px;
}
.card-info h2 {
    font-size: 0.36rem;
    color: #0b1a30;
    margin-bottom: 15px;
    font-weight: 400;
    transition: all 0.35s ease;
}
.card-info .desc {
    color: #666;
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 25px;
}
.mySwiper .swiper {
    width: 33%;
}
.more-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: #21184a;
    font-size: 16px;
    margin-top: 20px;
    transition: transform 0.3s ease;
}
/* 了解详情按钮 */
.about .more-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: #fff;
    font-weight: bold;
    font-size: 18px;
    margin-top: 50px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.panel:hover .more-btn {
    transform: translateY(-15px);
    cursor: pointer;
}
.btn-arrow {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #055493;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0.2rem;
}
/* 右侧图片深色区域 */
.card-media {
    width: 100%;
    height: 100%;
    display: none;
    border-radius: 15px;
    overflow: hidden;
    position: absolute;
    z-index: 1;
}
.card-media img {
    width: 100%;
    height: 100%;
}
.card-media video {
    width: 149%;
    height: 100%;
}
/* 右下角原图样式的控制按钮 */
.nav-controls {
    position: absolute;
    bottom: 10px;
    right: 10px;
    display: flex;
    gap: 15px;
    z-index: 10;
}
.btn-prev,
.btn-next {
    width: 50px;
    height: 50px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    background: var(--accent-blue);
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
    font-size: 0.2rem;
}
.btn-prev:hover,
.btn-next:hover {
    box-shadow: 2px 3px 34px rgb(17 53 120 / 48%);
    border-color: rgba(255, 255, 255, 0.5);
}
/* 进度条指示器 */
.swiper-pagination-progressbar {
    background-color: #e0e0e0;
    height: 2px !important;
    bottom: 35px !important;
    top: auto !important;
    width: calc(100% - 160px) !important;
    border-radius: 5px;
}
.swiper-pagination-progressbar-fill {
    background-color: #0a2d8f !important;
}
/* 底部占位区域 */
.product {
    background-color: #f7f9f8;
}
.product .section-title {
    text-align: left;
    display: flex;
}
.product .section-title span {
    color: var(--blue);
    display: block;
}
.video-about {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
    background: #f0f2f5;
}
.video-about .section-title {
    margin-bottom: 0;
}
/* 视频卡片容器 */
.video-card-container {
    position: relative;
    width: 100%;
    max-width: 1260px;
    height: 620px;
    border-radius: 18px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.1);
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.video-card-container:hover {
    transform: translateY(-4px);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), 0 0 20px rgba(56, 139, 253, 0.3);
}
/* 背景视频（静音循环） */
.bg-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 16px;
}
/* 半透明遮罩层及内容 */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 17, 23, 0.45);
    backdrop-filter: blur(2px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: background 0.3s ease;
     border-radius: 16px;
}
.video-card-container:hover .overlay {
    background: rgba(13, 17, 23, 0.6);
}
/* 播放按钮样式 */
.play-btn {
    width: 72px;
    height: 72px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.4);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), background-color 0.3s ease;
    margin-bottom: 16px;
}
/* 三角形播放图标 */
.play-icon {
    width: 0;
    height: 0;
    border-top: 11px solid transparent;
    border-bottom: 11px solid transparent;
    border-left: 18px solid #0d1117;
    margin-left: 4px;
}
.video-card-container:hover .play-btn {
    transform: scale(1.12);
    background: #ffffff;
    box-shadow: 0 0 40px rgba(255, 255, 255, 0.6);
}
/* 提示文字 */
.play-text {
    color: #ffffff;
    font-size: 0.24rem;
    font-weight: 300;
    letter-spacing: 1.5px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8);
}
/* --- 弹窗 Modal 样式 --- */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.88);
    backdrop-filter: blur(8px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.modal.active {
    display: flex;
    opacity: 1;
}
 
.popup-video {
    width: 100%;
    border-radius: 12px;
    display: block;
    max-height: 80vh;
    outline: none;
}
/* 关闭按钮 - 定位在弹窗右上角外部 */
.close-btn {
    position: absolute;
    top: -0.8rem;
    right: 0;
    width: 0.6rem;
    height: 0.6rem;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: #ffffff;
    font-size: 0.28rem;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s ease;
}
.close-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg) scale(1.08);
    color: #ffffff;
}
/* 外层排版容器 */
.news-section {
    width: 100%;
    max-width: 1640px;
    margin: 0 auto;
    padding: 0 40px;
}
.news .section-title {
    text-align: left;
}
/* ==========================================
       自定义命名 Swiper 核心样式
       ========================================== */
.custom-news-swiper {
    width: 100%;
    overflow: visible;
    /* 允许右侧内容溢出屏幕边缘，不居中截断 */
}
.custom-news-swiper .swiper-wrapper {
    display: flex;
}
/* 卡片样式 */
.custom-slide {
    flex-shrink: 0;
    height: 524px;
    overflow: hidden;
    position: relative;
    transition: transform 0.3s ease;
    background-color: #ffffff;
    width: 440px;
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(180, 190, 210, 0.3);
    padding: 24px;
    border: 1px solid rgba(220, 225, 235, 0.6);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: left;
}
.custom-slide:hover {
    transform: translateY(-5px);
}
/* 卡片容器 */
.card:hover {
    transform: translateY(-4px);
}
/* 顶部配图区域 */
.card-image {
    width: 100%;
    height: 250px;
    border-radius: 16px;
    overflow: hidden;
}
.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.65s ease-out;
}
.custom-slide:hover img {
    transform: scale(1.15);
}
/* 内容包围盒 */
.card-content {
    padding-top: 20px;
}
/* 分类与时间 */
.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    color: #8a92a0;
}
.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
}
.meta-item svg {
    width: 16px;
    height: 16px;
    stroke: #a0a8b5;
}
/* 细分割线 */
.divider {
    border: none;
    border-top: 1px solid #eef1f6;
    margin: 16px 0;
}
/* 卡片标题 */
.card-title {
    font-size: 20px;
    font-weight: 600;
    color: #0c1a30;
    line-height: 1.4;
    margin-bottom: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
/* 卡片描述 */
.card-description {
    font-size: 14px;
    color: #707885;
    line-height: 1.6;
    margin-bottom: 24px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
/* 底部区域 */
.card-footer {
    margin-top: 12px;
    font-size: 0.1rem;
}
/* “了解详情” 链接 */
.learn-more {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    gap: 12px;
    color: #1e2a3d;
    font-size: 15px;
    font-weight: 500;
    transition: opacity 0.2s;
}
.learn-more:hover {
    opacity: 0.8;
}
/* 圆形箭头按钮 */
.arrow-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid #0a2d8f;
    /* 契合原图的优雅蓝色 */
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, transform 0.2s;
}
.arrow-btn svg {
    width: 18px;
    height: 18px;
    stroke: #0a2d8f;
}
/* 悬停微动效：箭头轻轻向右移动 */
.learn-more:hover .arrow-btn {
    background-color: #0a2d8f;
}
.learn-more:hover .arrow-btn svg {
    stroke: #ffffff;
    transform: translateX(2px);
    transition: transform 0.2s, stroke 0.2s;
}
.swiper-controls-bar {
    display: flex;
    align-items: center;
    margin-top: 40px;
    gap: 24px;
}
/* 左右控制按钮组 */
.nav-buttons-group {
    display: flex;
    gap: 12px;
}
.custom-prev-btn,
.custom-next-btn {
    width: 75px;
    height: 40px;
    background-color: #f3f3f3;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
}
.custom-prev-btn:hover,
.custom-next-btn:hover {
    background-color: #e5e5e5;
}
.custom-prev-btn svg,
.custom-next-btn svg {
    width: 32px;
    height: 32px;
    fill: #0a2d8f;
}
/* 禁用状态样式 */
.custom-prev-btn.swiper-button-disabled,
.custom-next-btn.swiper-button-disabled {
    opacity: 0.4;
}
/* 类似时间轴的进度条 */
.custom-progress-bar {
    flex-grow: 1;
    max-width: 100%;
    /* 限制进度条的最大长度 */
    height: 3px;
    background-color: #e0e0e0;
    border-radius: 5px;
    position: relative;
    overflow: hidden;
}
.custom-progress-fill {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0%;
    /* 由 JS 动态计算 */
    background-color: #0a2d8f;
    transition: width 0.3s ease;
    /* 顺滑过渡效果 */
}
/* 承接内容区 */
.intro-section {
    padding: 120px 0px;
    text-align: center;
}
.container {
    max-width: 100%;
    width: 1640px;
    margin: 0 auto;
    text-align: center;
}
.about-section {
    background: #f7f9f8;
}
.about-section .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    align-items: center;
    text-align: left;
    height: 100vh;
}
footer .container {
    display: flex;
    justify-content: space-between;
}
.section-desc {
    color: var(--text-muted);
    font-size: 22px;
    line-height: 1.8;
    font-weight: 300;
}
.business-section .title-box {
    position: absolute;
    z-index: 2;
    padding-top: 1.2rem;
}
.business-section .section-desc {
    color: var(--bg-white);
}
.business-section .section-title {
    color: var(--bg-white);
}
.title-box {
    margin-bottom: 120px;
}
/* ================= 右侧导航链接网格 ================= */
.footer-right {
    flex: 2;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    /* 6列均分 */
    gap: 20px;
    min-width: 600px;
}
/* 移动端响应式兼容 */
@media (max-width: 992px) {
    .footer-right {
        grid-template-columns: repeat(3, 1fr);
        min-width: 100%;
    }
}
@media (max-width: 576px) {
    .footer-right {
        grid-template-columns: repeat(2, 1fr);
    }
}
/* 每一列的样式 */
.nav-column h3 {
    font-size: 20px;
    font-weight: 500;
    color: #ffffff;
    margin-bottom: 20px;
    position: relative;
}
.nav-column ul {
    list-style: none;
}
.nav-column ul li a {
    color: #a1b2c9;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.2s ease;
}
.nav-column ul li a:hover {
    color: #ffffff;
    /* 悬停变为纯白 */
}
/* 1. 整个右侧悬浮栏的初始状态：隐藏 + 向右偏移 */
.right-contact-bar {
    position: fixed;
    right: -80px;
    /* 初始向右偏移，藏在屏幕外 */
    bottom: 50px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    font-family: "Microsoft YaHei", sans-serif;
    opacity: 0;
    /* 初始透明 */
    visibility: hidden;
    /* 初始不可见 */
    transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    /* 平滑的滑入动画 */
}
/* 2. 当添加 .show 类时的状态：滑入并显示 */
.right-contact-bar.show {
    right: 20px;
    /* 回到正常位置 */
    opacity: 1;
    visibility: visible;
}
/* 主悬浮菜单样式 */
.contact-menu {
    background-color: var(--accent-blue);
    border-radius: 35px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    padding: 15px 0;
    width: 65px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
/* 每一个联系项 */
.contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #d9d9d9;
    font-size: 14px;
    line-height: 25px;
    width: 100%;
    padding: 4px 0;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}
.contact-item:hover {
    color: #055493;
}
.contact-item .icon {
    font-size: 20px;
    margin-bottom: 5px;
    color: #444;
}
/* 分割线 */
.divider {
    width: 35px;
    height: 1px;
    background-color: #f1ede8;
}
/* 微信二维码弹窗 */
.wechat-item {
    position: relative;
}
.wechat-qrcode {
    position: absolute;
    right: 80px;
    top: 50%;
    transform: translateY(-50%) scale(0.9);
    background: #fff;
    border-radius: 8px;
    padding: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    text-align: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    pointer-events: none;
}
.wechat-qrcode img {
    width: 100px;
    height: 100px;
    display: block;
    margin-bottom: 5px;
}
.wechat-qrcode p {
    margin: 0;
    font-size: 16px;
    padding: 10px 0;
    color: #666;
}
.wechat-item:hover .wechat-qrcode {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) scale(1);
}
/* 3. “一键向上” 按钮（默认跟着父容器一起显示，不需要单独做隐藏了） */
.back-to-top {
    width: 60px;
    height: 60px;
    background-color: #fffdf9;
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
}
.back-to-top .icon-up {
    font-size: 24px;
    color: #333;
    font-weight: bold;
}
.back-to-top:hover {
    background-color: #f5f2eb;
}
.footer-container {
    position: relative;
    background: var(--accent-blue);
    color: #ffffff;
    width: 100%;
    overflow: hidden;
}
.wave-header-container {
    position: relative;
    width: 100%;
    height: 280px;
    overflow: hidden;
    background: linear-gradient(135deg, #e3eeff 0%, #d0e2fb 50%, #dbe8fc 100%);
}
.wave-svg {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
}
/* ---------------- 底部主体内容 ---------------- */
.footer-main {
    margin: 0 auto;
    padding: 0.1rem 0 0.2rem 0;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    position: relative;
    z-index: 2;
}
/* 左侧 Branding 区 */
.left-section {
    width: 312px;
    display: flex;
    flex-direction: column;
}
.logo-box {
    display: flex;
    align-items: center;
}
.logo-box svg {
    height: 48px;
}
/* 右侧导航及下拉菜单区 */
.right-section {
    flex: 1;
    margin-left: 100px;
    display: flex;
    flex-direction: column;
}
.site-select:hover {
    border-color: rgba(255, 255, 255, 0.6);
}
.site-select svg {
    width: 12px;
    height: 12px;
    fill: #ffffff;
}
/* 导航菜单网格 */
.nav-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}
.nav-column {
    display: flex;
    flex-direction: column;
    text-align: left;
}
.nav-title {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 12px;
    position: relative;
}
.nav-title-line {
    width: 20px;
    height: 2px;
    background-color: #0072ce;
    margin-bottom: 18px;
}
.footer-nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 0;
    margin: 0;
    font-size: 0.28rem;
}
.footer-nav-list a {
    color: #a0b2c6;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}
.footer-nav-list a:hover {
    color: #ffffff;
}
/* ---------------- 底部版权与法律声明条 ---------------- */
.footer-bottom {
    margin: 30px auto 0 auto;
    padding: 25px 60px 30px 60px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 13px;
    color: #8c9fae;
}
.bottom-left {
    display: flex;
    gap: 20px;
}
.bottom-right {
    display: flex;
    align-items: center;
    gap: 30px;
}
.hotline {
    color: #ffffff;
}
.hotline span {
    font-weight: 700;
    font-size: 15px;
}
.legal-links {
    display: flex;
    gap: 15px;
}
.legal-links a {
    color: #8c9fae;
    text-decoration: none;
    transition: color 0.2s;
}
.legal-links a:hover {
    color: #ffffff;
}
.legal-links span {
    color: rgba(255, 255, 255, 0.2);
}
/* 外部容器 */
.follow-container {
    display: flex;
    align-items: center;
    gap: 25px;
    margin-top: 0.2rem;
}
/* "关注" 文本标签 */
.follow-label {
    font-size: 24px;
    font-weight: bold;
    color: #1a1a1a;
    margin-right: 5px;
}
/* 图标列表组 */
.icon-group {
    display: flex;
    gap: 25px;
}
/* 单个图标容器（用于定位悬浮窗） */
.icon-item {
    position: relative;
}
/* 通用按钮样式 */
.icon-btn {
    width: 56px;
    height: 40px;
    border-radius: 20px;
    background-color: #2b2b2b;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: background-color 0.3s ease;
    border: none;
    outline: none;
}
/* 微信按钮 */
.icon-btn.wechat:hover {
    background-color: #07c160;
}
/* 抖音按钮（默认红色高亮） */
.icon-btn.douyin {
    background-color: #ff001c;
}
/* 小红书按钮 */
.icon-btn.xiaohongshu {
    font-weight: bold;
    color: #ffffff;
    font-size: 13px;
}
.icon-btn.xiaohongshu:hover {
    background-color: #ff2742;
}
/* 视频号/其他按钮 */
.icon-btn.channels:hover {
    background-color: #fa9d3b;
}
/* SVG 图标通用颜色 */
.icon-btn svg {
    fill: #ffffff;
    width: 27px;
    height: 34px;
}
/* --- 悬浮气泡/二维码样式 --- */
.tooltip-box {
    position: absolute;
    bottom: 55px;
    /* 定位到按钮上方 */
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: #ffffff;
    padding: 12px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
}
/* 二维码图片大小（可替换为您的真实抖音码/二维码） */
.tooltip-box img {
    width: 100px;
    height: 100px;
    display: block;
    object-fit: contain;
}
/* 气泡下方的向下小三角 */
.tooltip-box::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px 6px 0;
    border-style: solid;
    border-color: #ffffff transparent transparent;
    display: block;
    width: 0;
}
/* 鼠标悬停（Hover）在容器上时，显示气泡 */
.icon-item:hover .tooltip-box {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
/* --- 核心：电话气泡弹窗样式 --- */
.phone-popover {
    position: absolute;
    right: 80px;
    /* 默认贴近，留出过渡空间 */
    top: 50%;
    transform: translateY(-50%);
    background-color: #ffffff;
    padding: 20px 24px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    width: 240px;
    pointer-events: none;
    /* 默认不可触发事件，防止误触 */
    opacity: 0;
    /* 默认隐藏 */
    visibility: hidden;
    /* 彻底隐藏 */
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    /* 平滑的回弹缓动动画 */
}
/* 气泡右侧的小三角（指向电话图标） */
.phone-popover::after {
    content: "";
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    background-color: #ffffff;
}
/* 弹窗内的文字排版 */
.popover-section {
    margin-bottom: 15px;
}
.popover-section:last-child {
    margin-bottom: 0;
}
.popover-title {
    font-size: 16px;
    color: #999;
    margin-bottom: 4px;
}
.popover-number {
    font-size: 19px;
    color: #333;
    font-weight: 500;
    letter-spacing: 0.5px;
}
/* --- 悬停触发动画效果 --- */
.contact-item.phone-item:hover .phone-popover {
    opacity: 1;
    visibility: visible;
    right: 90px;
    /* 悬停时向左滑入 10px */
    pointer-events: auto;
    /* 激活弹窗内的点击事件 */
}
.contact {
     background: linear-gradient(to right, #e0ecff 0%, #d8e7fd 30%, #d0e2fb 60%, #d6e5fc 100%);
     padding: 0.5rem 0;
}
.contact-container {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    height: 380px;
    border-radius: 24px;
    overflow: hidden;
    display: flex;
    position: relative;
    /* 渐变背景，模拟原图左侧的深蓝色调 */
    background: linear-gradient(90deg, #004c8c 0%, #0066b3 35%, #0d3863 100%);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}
/* 左侧文字区域 */
.contact-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-left: 60px;
    z-index: 2;
    color: #ffffff;
}
.contact-title {
    font-size: 0.38rem;
    font-weight: 400;
    margin-bottom: 20px;
    letter-spacing: 2px;
}
.contact-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 40px;
    letter-spacing: 1px;
}
/* “联系我们” 按钮 */
.btn-contact {
    display: inline-block;
    width: fit-content;
    padding: 12px 36px;
    font-size: 16px;
    color: #ffffff;
    text-decoration: none;
    border: 1.5px solid rgba(255, 255, 255, 0.7);
    border-radius: 30px;
    background: transparent;
    cursor: pointer;
    /* 平滑过渡动画 */
    transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}
/* 鼠标移入（Hover）效果 */
.btn-contact:hover {
    background-color: #ffffff;
    color: #005599;
    border-color: #ffffff;
    transform: translateY(-2px);
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.2);
}
/* 鼠标按下（Active）效果 */
.btn-contact:active {
    transform: translateY(0);
}
/* 右侧图片区域 */
.contact-image-wrapper {
    position: relative;
    width: 50%;
    height: 100%;
}
.contact-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}
/* 遮罩层：让图片与左侧的蓝色背景完美融合，消除硬切边 */
.contact-image-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: -1px;
    /* 稍微向左覆盖一点防止露缝 */
    width: 30%;
    height: 100%;
    background: linear-gradient(90deg, #035ca2 0%, rgba(0, 102, 179, 0) 100%);
    z-index: 1;
}
/* ==========================================================================
       3. Swiper 容器：右侧不限制，宽度铺满至屏幕边缘
       ========================================================================== */
@media (max-width: 992px) {
    .header-container {
        padding: 16px 20px;
    }
    .nav-toggle {
        display: flex;
        padding: 5px;
        z-index: 1001;
    }
    /* 侧边弹出菜单：引入高级的模糊感，防止突兀 */
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: rgba(22, 27, 34, 0.95);
        /* 深钛色带微透 */
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: 100px 24px 40px 24px;
        box-shadow: -15px 0 40px rgba(0, 0, 0, 0.6);
        transition: right 0.45s cubic-bezier(0.16, 1, 0.3, 1);
        /* 高端缓动 */
        border-left: 1px solid var(--border-color);
    }
    /* 当顶部上滑变白时，移动端侧边栏变为白底微透 */
    .site-header.scrolled-active .main-nav {
        background: rgba(255, 255, 255, 0.96);
        border-left: 1px solid rgba(0, 0, 0, 0.06);
        box-shadow: -15px 0 40px rgba(0, 0, 0, 0.08);
    }
    .main-nav.open {
        right: 0;
    }
    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 60px;
        /* 列表项微小间距 */
        width: 100%;
    }
    .nav-list>li {
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    }
    .site-header.scrolled-active .nav-list>li {
        border-bottom-color: rgba(0, 0, 0, 0.04);
    }
    /* 一级菜单触摸状态优化 */
    .nav-list>li>a {
        padding: 18px 8px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-size: 18px;
        color: var(--text-light);
        border-radius: 6px;
        transition: background 0.2s;
    }
    .site-header.scrolled-active .nav-list>li>a {
        color: #1f2328;
    }
    /* 增加手机端点击反馈（钛蓝微光） */
    .nav-list>li>a:active {
        background: rgba(0, 122, 255, 0.1);
    }
    /* 二级折叠菜单：不偏不倚，独立轻工业色块包围 */
    .dropdown {
        position: static;
        transform: none;
        width: 100%;
        background: rgba(0, 0, 0, 0.2);
        border-radius: 6px;
        margin: 0 0 8px 0;
        padding: 0;
        display: block !important;
        height: 0;
        overflow: hidden;
        opacity: 0;
    }
    .site-header.scrolled-active .dropdown {
        background: rgba(0, 0, 0, 0.03);
    }
    .dropdown a {
        padding: 14px 20px;
        font-size: 14px;
        color: var(--text-muted);
        display: block;
    }
    .site-header.scrolled-active .dropdown a {
        color: #57606a;
    }
    .dropdown a:active {
        background: rgba(0, 122, 255, 0.15);
        color: #fff;
    }
    /* 优化箭头动画旋转轴心 */
    .arrow {
        transform-origin: center 25%;
        transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .arrow.rotate {
        transform: rotate(180deg);
    }
    /* 汉堡包按钮精致化 */
    .nav-toggle.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }
    .nav-toggle.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
}
@media (max-width: 1700px) {
    .container {
        width: 1440px;
    }
    .mySwiper,
    .custom-news-swiper {
        width: 1440px;
    }
    .swiper-controls-bar {
        padding: 0 62px
    }
    .mySwiper .swiper-slide:hover .card-info h2 {
        transform: translate(0px, calc(3.2rem - 100%));
        position: relative;
        z-index: 3;
        color: #fff;
    }
}
/*关于我们*/
 .about-hero {
      color: #ffffff;
      text-align: center;
      position: relative;
      overflow: hidden;
      height: 100vh;
    }
  .about-hero .container{
     text-align: left;
    position: absolute;
    top: 34%;
    z-index: 1;
    left: 12%;
    width: 80%;
  }
  /* 1. 给图标加上动画属性 */
/* 2. 定义 keyframes 帧动画 */
@keyframes floatBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(6px); /* 向下浮动 6 像素 */
    }
}
.hero-btn-wrap{
        position: absolute;
    bottom: 8%;
    right: 9%;
}
.about-hero-title {     display: flex;align-items: center;font-size: 0.32rem; font-weight: 300; letter-spacing: 1px; margin-top: 35px; text-shadow: 0 4px 12px rgba(0,0,0,0.3); }
 .about-hero-title::before {
    content: "";
    display: inline-block;
    width: 55px;
    height: 1px;
    background-color: var(--bg-white);
    margin-right: 8px;
    margin-left: 233px;
}
.no-line .about-hero-title::before{
    display: none;
}
.about-hero-subtitle { font-size: 0.72rem;    line-height: 1.8; font-weight: 300;    max-width: 80%; }
 /* 视差容器 */
    .parallax-container {
      position: relative;
      width: 100%;
      height: 100vh;
      overflow: hidden;
      display: flex;
      justify-content: center;
      align-items: center;
        background: linear-gradient(to right, #e0ecff 0%, #d8e7fd 30%, #d0e2fb 60%, #d6e5fc 100%);
    }
      .parallax-container {
      position: relative;
      width: 100%;
      height: 100vh;
      overflow: hidden;
      display: flex;
      justify-content: center;
      align-items: center;
        background: linear-gradient(to right, #e0ecff 0%, #d8e7fd 30%, #d0e2fb 60%, #d6e5fc 100%);
    }
    /* 通用图层样式 */
    .layer {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 120%; /* 稍高一点防止滚动时出界露底 */
      background-size: cover;
      background-position: center bottom;
      pointer-events: none;
      will-change: transform;
    }
    /* 1. 图层：云/天空背景 (最远) */
    .layer-sky {
      z-index: 5;
    }
    .cloud {
      position: absolute;
      z-index: 999;
    }
    .cloud-1 { width: 400px; height: 150px; top: 10%; left: -50px; }
    .cloud-2 { width: 500px; height: 200px; top: 5%; right: -50px; }
    /* 2. 图层：远景山脉 (较远) */
    .layer-far-mountains {
      z-index: 2;
    }
    /* 3. 图层：文字内容与按钮 */
    .layer-text {
      z-index:5;
      position: relative;
      text-align: center;
      max-width: 1200px;
      padding: 0 20px;
      margin-top: -100px; /* 调整垂直居中偏上 */
      pointer-events: auto;
    }
    .layer-text h2 {
      font-size: 0.52rem;
      font-weight: 400;
      color: #2c3e50;
      margin-bottom: 20px;
      letter-spacing: 2px;
    }
    .layer-text p {
      font-size: 0.22rem;
      color: #5a6c7d;
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .btn-sustainability {
      display: inline-block;
      padding: 10px 32px;
      font-size: 0.95rem;
      color: #4a607a;
      background: rgba(255, 255, 255, 0.4);
      border: 1px solid #7b93a4;
      border-radius: 30px;
      text-decoration: none;
      backdrop-filter: blur(5px);
      transition: all 0.3s ease;
      cursor: pointer;
    }
    .btn-sustainability:hover {
      background: rgba(255, 255, 255, 0.8);
      color: #1a252f;
      box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    }
    /* 4. 图层：近景山脉及前方人物 (最近) */
    .layer-near-mountains {
      z-index: 4;
    }
.hero-btn {
display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.22rem;
    font-weight: 300;
}
.hero-btn-icon{
      width: 0.45rem;
    height: 0.45rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    color: #000;
    justify-content: center;
    transition: all 0.3s ease;
    padding: 0.1rem;
    font-size: 0.18rem;
    background: #ffffff;
    animation: floatBounce 2s ease-in-out infinite;
    box-shadow: var(--box-shadow);
}
.hero-btn-icon:hover{
    color: #fff;
    background: var(--accent-blue);
}
/* 5. 核心数据数字看版 */
.stats-section {
    padding: 1rem 0;
    background-color: var(--color-white);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}
.stat-num {
    font-size: 0.5rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 4px;
}
.stat-num .unit {
       font-size: 0.3rem;
    margin-left: 2px;
    position: relative;
    top: -22px;
    left: 5px;
}
.stat-label {
    font-size: 0.3rem;
    color: var(--color-text-muted);
    font-weight: 300;
}
/* 6. 图文介绍 Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
        background: url(../images/lhjs.png) no-repeat;
    background-position: 0px 118px;
    background-size: 403px;
}
.accent-line {
    width: 48px;
    height: 3px;
    background-color: var(--accent-blue);
    margin-bottom: 24px;
}
.paragraph {
    
    font-size: 0.22rem;
    line-height: 1.8;
    margin-top: 20px;
    font-weight: 300;
}
.about-visual {
    position: relative;
    box-shadow: none;
}
.img-wrapper {
    aspect-ratio: 4 / 3;
    border-radius: 16px;
    overflow: hidden;
    background-color: var(--color-card-bg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--color-border);
    height: 100%;
}
.parallax-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.glass-badge {
     position: absolute;
    bottom: -32px;
    left: -32px;
    padding: 24px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--color-white);
   max-width: 525px;
    z-index: 1;
}
.badge-tag {
    font-size: 0.15rem;
    font-weight: 600;
    color: var(--color-brand-blue);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}
.badge-title {
    font-size: 0.22rem;
    font-weight: 700;
 
}
.badge-title svg{
     width: 51px;
    height: 21px;
    stroke: var(--accent-blue);
    position: relative;
    top: 5px;
}
.about-section  .section-title{
    text-align: left;
    font-size: 0.48rem;
}
/*公司使命*/
 /* 主容器 (保持固定宽度居中，三列网格对齐) */
        .wrap {
            max-width: 100%;
            margin: 0 auto;
            padding: 120px 0;
            position: relative;
            z-index: 2;
            background: var(--accent-blue);
        }
        .wrap h2{
            text-align: left;
            color: var(--bg-white);
            font-size: 0.48rem;
        }
        /* SVG 连接线容器，铺满 Wrap */
        .svg-layer {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 1;
        }
        .line-path {
            fill: none;
            stroke: #dc2626;
            stroke-width: 2;
            stroke-dasharray: 6 4;
            opacity: 0.85;
            filter: drop-shadow(0 0 4px rgba(220, 38, 38, 0.6));
        }
        /* 每一行：3列 Grid (占位卡片 | 中间图片 | 右侧/左侧卡片) */
        .item-row {
            display: grid;
            grid-template-columns: 400px 400px 400px;
            gap: 100px;
            align-items: center;
            justify-content: center;
            margin-bottom: 60px;
            position: relative;
        }
        /* 空占位盒：保证图片永远留在中间第2列 */
        .placeholder {
            width: 100%;
            height: 100%;
        }
        /* 中间列图片框 */
        .img-box {
            grid-column: 2; /* 强制定位在中间第2列 */
            width: 400px;
            height: 400px;
            border-radius: 20px;
            overflow: hidden;
            background: #1e293b;
            box-shadow: 0 15px 35px rgba(0,0,0,0.5);
            position: relative;
            z-index: 2;
        }
        .img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: transform 0.5s ease;
        }
        .img-box:hover img {
            transform: scale(1.05);
        }
        /* 白色卡片包装 */
        .card-wrap {
            width: 400px;
            z-index: 2;
        }
        /* 根据需求：行1与行3卡片在右侧(第3列)，行2卡片在左侧(第1列) */
        .item-row.pos-right .card-wrap {
            grid-column: 3;
        }
        .item-row.pos-left .card-wrap {
            grid-column: 1;
        }
        /* 白色内容卡片 */
        .card {
            background: #ffffff;
            color: #1e293b;
            padding: 30px;
            border-radius: 20px;
            height: 400px;
            box-shadow: 0 15px 35px rgba(0,0,0,0.3);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        /* 右上角半圆水波纹 */
        .card::after {
            content: '';
            position: absolute;
            top: -30px;
            right: -30px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            border: 1px solid rgba(0, 0, 0, 0.05);
            pointer-events: none;
            box-shadow: inset 0 0 0 16px rgba(0,0,0,0.015);
        }
        /* 红点 Indicator */
        .dot {
            width: 10px;
            height: 10px;
            background-color: var(--accent-blue);
            border-radius: 50%;
            margin-bottom: 20px;
            position: relative;
            z-index: 3;
        }
        /* 标题与描述 */
        .title {
            font-weight: 400;
            color: #dc2626;
           font-size: 0.5rem;
            margin-bottom: 12px;
        }
        .desc {
            font-size: 0.26rem;
            color: var(--accent-blue);
            line-height: 1.7;
            font-weight: 300;
        }
        /* 卡片底部边栏 */
        .ftr-meta {
            padding-top: 16px;
            border-top: 1px solid #f1f5f9;
            display: flex;
            justify-content: space-between;
            font-size: 0.24rem;
            color: #94a3b8;
        }
/*发展历程*/
/* === 头部区域：新增固定（Pin）样式 === */
.History{
    padding: 80px 0;
}
    .header-wrapper {
      position: relative;
      z-index: 100;
      width: 100%;
      height: 20vh; /* 初始化高度，让开场更大气 */
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      background-color: var(--bg-color);
    }
    /* 当 GSAP 将其固定时，需要改变样式以适应滚动 */
    .header-wrapper.is-fixed {
      height: auto;
      padding: 10px 20px;
      background-color: var(--header-bg);
      backdrop-filter: blur(15px); /* 高斯模糊，现代感 */
      border-bottom: 1px solid rgba(0, 0, 0, 0.03); /* 淡淡的底边 */
    }
    .header-wrapper h2 {
      font-size: 0.48rem; /* 更大的标题 */
      font-weight: 400;
      letter-spacing: -2px;
      margin-bottom: 20px;
      transition: font-size 0.5s ease; /* 滚动时标题缩小的过渡 */
    }
    /* 固定时的标题样式 */
    .header-wrapper.is-fixed h2 {
      font-size: 0.3rem;
      letter-spacing: -1px;
    }
    .header-wrapper.is-fixed p {
      /* 固定时可以选择隐藏副标题或缩小，这里选择缩小 */
      font-size: 0.28rem;
    }
    /* === 发展历程主容器 === */
    .timeline-container {
      position: relative;
      max-width: 1100px;
      margin: 0 auto;
      padding: 120px 20px 180px; /* 增加上下间距 */
    }
    /* === [修改部分] 中央进度线条 - 改为虚线 === */
    .timeline-line-track {
      position: absolute;
      top: 0;
      bottom: 0;
      left: 50%;
      /* 1. 去掉原本的背景色 */
      background: none; 
      /* 2. 改用左边框绘制虚线 */
      border-left: 2px dashed var(--track-color); 
      /* 3. 宽度设为 0 */
      width: 0; 
      /* 4. 因为边框占了 2px，向左偏移 1px 以实现精准居中 */
      transform: translateX(-1px); 
    }
    .timeline-line-progress {
      position: absolute;
      top: 0;
      left: 50%;
      /* 保持蓝色进度条为实线，覆盖在虚线上 */
      width: 2px; 
      height: 0%;
      background: linear-gradient(to bottom, var(--primary-accent), var(--secondary-accent));
      /* 进度条精准居中 */
      transform: translateX(-50%);
      z-index: 1; /* 确保在虚线轨道之上 */
    }
    /* 每一个节点项 */
    .timeline-item {
      position: relative;
      display: flex;
      justify-content: flex-end;
      padding-bottom: 150px; /* 增加节点间距，更显空灵 */
      width: 50%;
      z-index: 2; /* 确保内容在动态进度条之上 */
    }
    /* 左右交替排布 */
    .timeline-item:nth-child(even) {
      margin-left: 50%;
      justify-content: flex-start;
    }
    .timeline-item:nth-child(odd) {
      margin-left: 0;
      padding-right: 70px; /* 增加到线条的距离 */
    }
    .timeline-item:nth-child(even) {
      padding-left: 70px;
    }
    /* 中央节点图标 */
    .timeline-node {
      position: absolute;
      top: 32px; /* 配合卡片 padding 调整 */
      left: 100%;
      transform: translate(-50%, -50%) scale(0.7);
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: var(--accent-blue);
      border: 4px solid var(--primary-accent);
      /* 淡淡的弥散阴影，增加悬浮感 */
      box-shadow: 0 4px 10px rgba(0, 102, 255, 0.2);
      z-index: 3; /* 最高层级 */
      transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
    }
    .timeline-item:nth-child(even) .timeline-node {
      left: 0;
    }
    /* 事件卡片结构：改为高端悬浮窗风格 */
    .timeline-card {
      background: var(--bg-white);
      border: 1px solid var(--card-border);
      padding: 40px;
      border-radius: 20px; /* 更圆润的角 */
      width: 100%;
      max-width: 480px;
      position: relative;
      cursor: pointer;
      /* 核心：极其柔软的大阴影，营造高级感 */
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
      transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    }
    .timeline-card:hover {
      border-color: transparent;
      transform: translateY(-8px);
      /* 悬停时阴影加深 */
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
    }
    .timeline-year {
      font-size: 0.5rem;
      font-weight: 800;
      color: var(--primary-accent);
      margin-bottom: 12px;
      letter-spacing: -1.5px;
      font-family: 'Inter', sans-serif;
    }
    .timeline-title {
      font-size: 0.28rem;
      font-weight: 600;
      margin-bottom: 15px;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }
    .timeline-desc {
      font-size: 0.22rem;
      line-height: 1.7;
      color: var(--text-muted);
      font-weight: 400;
    }
    /* === [新增部分] 底部视差图片区域 CSS === */
    .parallax-section {
      position: relative;
      width: 100%;
      height: 80vh; /* 设置图片区域占据视口高度，让视差更明显 */
      overflow: hidden; /* 必须：隐藏超出容器的图片部分 */
      background-color: var(--bg-color); /* 防止图片加载前出现白块 */
    }
    .parallax-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 120%; /* *** 关键：图片必须比容器高，才有移动空间 *** */
      /* 这里使用示例图片，您可以替换为您的“发展历程”相关图片路径 */
      background-image: url('../images/about-fz.jpg'); 
      background-size: cover; /* 铺满 */
      background-position: center center;
      background-repeat: no-repeat;
      z-index: 1; /* 图片层级最底 */
    }
    .parallax-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      /* 添加一层极淡的白色渐变遮罩，使图片更好地融入极简白金风格，不抢时间轴的风头 */
      background: linear-gradient(to bottom, rgba(255,255,255,1) 0%, rgba(255,255,255,0.85) 20%, rgba(255,255,255,0.7) 100%);
      z-index: 2; /* 遮罩层在图片之上 */
    }
    /* 可选：在图片上添加一些文字 */
    .parallax-content {
      position: relative;
      z-index: 3; /* 文字层级最高 */
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      padding: 0 20px;
    }
    .parallax-content h2 {
      font-size: 0.42rem;
      font-weight: 800;
      letter-spacing: -1px;
      color: var(--text-main);
      margin-bottom: 20px;
      /* 复用头部的渐变文字效果 */
      background: linear-gradient(135deg, #000000 0%, var(--primary-accent) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .parallax-content p {
      color: var(--text-muted);
      font-size: 0.28rem;
      font-weight:300;
    }
/*FAQ*/
        .faq-accordion .section-title{
            margin-bottom: 0.5rem;
        }
        .faq-accordion .container {
    display: flex;
    flex-direction: column;
    gap: 26px;
    margin-bottom: 1.2rem;
}
          .faq-accordion .section-title{
            text-align: left;
          }
             .faq-accordion .section-desc{
            text-align: left;
            margin-bottom: 0.6rem;
          }
        .faq-item {
            background-color: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 12px;
             box-shadow: var(--box-shadow);
            overflow: hidden;
            transition: all 0.25s ease-in-out;
        }
        .faq-item:hover {
            border-color: #70adf2;
                    box-shadow: var(--shadow-card);
                    color: var(--bg-white);
        }
        .faq-item.active {
               box-shadow: var(--shadow-card);
        }
        .faq-header {
            width: 100%;
            padding: 22px 28px;
            background: none;
            border: none;
            outline: none;
            color: var(--text-main);
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            text-align: left;
            transition: background-color 0.2s;
        }
        .faq-title-wrap {
            display: flex;
            align-items: center;
            gap: 16px;
            padding-right: 16px;
        }
        .faq-num {
            font-size: 13px;
            font-weight: 700;
            color: var(--bg-white);
            font-family: monospace;
            background: var(--primary-accent);
            padding: 4px 10px;
            border-radius: 6px;
            border: 1px solid rgba(2, 132, 199, 0.15);
        }
        .faq-question {
            font-size: 0.18rem;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text-main);
        }
        .faq-icon {
            width: 32px;
            height: 32px;
            min-width: 32px;
            border-radius: 50%;
            background: #f1f5f9;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), background 0.3s;
        }
        .faq-icon svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: var(--accent-blue);
            stroke-width: 2.2;
            stroke-linecap: round;
            stroke-linejoin: round;
            transition: stroke 0.3s;
        }
        .faq-item.active .faq-icon {
            transform: rotate(180deg);
            background: var(--accent-blue);
        }
        .faq-item.active .faq-icon svg {
            stroke: #ffffff;
        }
        /* Content Collapse Styling */
        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            text-align: left;
        }
        .faq-accordion .faq-body {
            padding: 0 28px 24px 36px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.7;
            border-top: 1px solid #f1f5f9;
            margin-top: 2px;
            padding-top: 18px;
        }
        .faq-answer-direct {
            color: var(--text-main);
            margin-bottom: 12px;
            font-size: 0.18rem !important;
            line-height: 1.6;
            font-weight: 400 !important;
        }
/* 爆炸金属* /
/* 5. 通用内容卡片区块 */
 .content-section {
    background: #fff;
    margin: 0 auto;
    border-radius: 0.16rem;         /* 16px */
    padding: 0.4rem;                /* 40px */
    margin-bottom: 0.7rem;         /* 32px */
    border: 0.01rem solid var(--color-border); /* 1px */
    box-shadow: var(--shadow-card);
    width: 1640px;
    display: flex;
        gap: 25px;
    flex-direction: column;
}
.main-container .section-title { 
    font-size: 0.28rem;           /* 25.6px (原 1.6 * 16) */
    color: var(--color-primary); 
    margin-bottom: 0.31rem;        /* 24px */
    font-weight: 700; 
    position: relative; 
    padding-bottom: 0.096rem;      /* 9.6px */
    text-align: left;
}
.main-container .section-title::after { 
    content: ''; 
    position: absolute; 
    bottom: 0; 
    left: 0; 
    width: 0.45rem;                /* 45px */
    height: 0.03rem;               /* 3px */
    background: var(--color-accent); 
    border-radius: 0.02rem;        /* 2px */
}
/* 6. SVG 图解展示框 */
.diagram-wrapper { 
    background: #090d16; 
    border-radius: 0.12rem;        /* 12px */
    padding: 0.24rem;              /* 24px */
    margin: 0.288rem 0;            /* 28.8px */
    text-align: center; 
    border: 0.01rem solid #1e293b; /* 1px */
}
.diagram-title { 
    color: #64748b; 
    font-size: 0.236rem;           /* 13.6px */
    margin-bottom: 0.16rem;        /* 16px */
    letter-spacing: 0.005rem;      /* 0.5px */
}
.dash-line { 
    stroke-dasharray: 800; 
    stroke-dashoffset: 800; 
    will-change: stroke-dashoffset; 
}
.pulse-point { 
    animation: pulse-animation 2s infinite; 
    transform-origin: center; 
}
@keyframes pulse-animation {
    0% { transform: scale(0.9); opacity: 0.4; }
    50% { transform: scale(1.3); opacity: 0.9; }
    100% { transform: scale(0.9); opacity: 0.4; }
}
/* 7. 网格系统与卡片 */
.grid-2-col { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(3.2rem, 1fr)); /* 320px */
    gap: 0.24rem;                  /* 24px */
    margin-bottom: 0.4rem;
}
.grid-4-col { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(2.3rem, 1fr)); /* 230px */
    gap: 0.192rem;                 /* 19.2px */
     margin-bottom: 0.4rem;
}
.feature-card {
    background: #ffffff;
    border: 0.01rem solid var(--color-border); /* 1px */
    border-radius: 0.12rem;        /* 12px */
    padding: 0.24rem;              /* 24px */
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s;
    will-change: transform;
}
.feature-card:hover { 
    transform: translateY(-0.06rem);/* -6px */
    box-shadow: var(--shadow-hover); 
    border-color: rgba(0, 119, 255, 0.3); 
}
.step-number { 
    font-size: 0.352rem;           /* 35.2px */
    font-weight: 800; 
    color: var(--color-accent); 
    margin-bottom: 0.2rem;       /* 3.2px */
    line-height: 1; 
    font-family: var(--font-family-base); 
}
.feature-card h3 { 
    font-size: 0.24rem;           /* 17.6px */
    color: var(--color-primary); 
    margin-bottom: 0.08rem;        /* 8px */
    font-weight: 600; 
}
.feature-card p { 
    font-size: 0.1472rem !important;          /* 14.72px */
    color: var(--color-text-muted); 
    line-height: 1.6; 
    font-weight: 400 !important;
}
/* 8. 响应式表格 */
.table-responsive { 
    overflow-x: auto; 
    border-radius: 0.08rem;        /* 8px */
    border: 0.01rem solid var(--color-border); /* 1px */
}
.data-table { 
    width: 100%; 
    border-collapse: collapse; 
    font-size: 0.18rem;          /* 14.72px */
    text-align: left; 
}
.data-table th, 
.data-table td { 
    padding: 0.16rem 0.192rem;     /* 16px 19.2px */
    border-bottom: 0.01rem solid var(--color-border); /* 1px */
}
.data-table th { 
    background: #f1f5f9; 
    color: var(--accent-blue); 
    font-weight: 600; 
}
.data-table tr:last-child td { 
    border-bottom: none; 
}
.data-table tr:hover { 
    background: var(--bg-subtle);
}
.main-container{
        background:var(--bg-subtle);
}
.content-section p{
    font-size: 0.22rem;
    font-weight: 300;
    line-height: 1.7;
}
.main-container  .about-hero{
    margin-bottom: 0.9rem;
}
/* Product Cards */
 .ep-grid-layout {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .ep-item-card {
      border: 1px solid #eef2f7;
      border-radius: 8px;
      background-color: #ffffff;
      position: relative;
      display: flex;
      flex-direction: column;
      transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
      overflow: hidden;
    }
    .ep-item-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 8px 24px rgba(0, 102, 255, 0.08);
      border-color: #d0e1ff;
    }
    .ep-item-title {
      font-size: 0.22rem;
      font-weight: 700;
      color: #1a1a1a;
      margin-bottom: 10px;
    }
    .ep-item-intro {
      font-size: 0.16rem !important;
      color: #666666;
      line-height: 1.5;
      margin-bottom: 16px;
      flex-grow: 1;
      font-weight: 400 !important;
    }
    .ep-spec-list {
      list-style: none;
      font-size: 0.14rem;
      color: #555555;
      border-top: 1px dashed #eef2f7;
      padding-top: 12px;
    }
    .ep-spec-list li {
      margin-bottom: 4px;
    }
    .ep-spec-list li:last-child {
      margin-bottom: 0;
    }
    .ep-spec-list strong {
      color: #333333;
    }
    .section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.more-link {
  color: var(--accent-blue); /* 对应图中的蓝色 */
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px; /* 控制文字与图标之间的间距 */
  font-size: 0.18rem;
}
/* 图标样式 */
.more-icon {
  width: 1em;
  height: 1em;
  transition: transform 0.2s ease;
}
/* 悬停微互动效果（可选） */
.more-link:hover .more-icon {
  transform: translateX(5px);
}
/* 图片外层包装盒子 */
.ep-img-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10; /* 固定高宽比例（如16:10或4:3），保证所有卡片图片高度一致 */
  overflow: hidden;
  background-color: #f5f7fa; /* 图片加载前的背景占位色 */
}
/* 产品图片样式 */
.ep-item-img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* 自动裁剪并填充，防止图片拉伸变形 */
  display: block;
  transition: transform 0.4s ease;
}
/* 鼠标悬停时图片轻微放大效果 */
.ep-item-card:hover .ep-item-img {
  transform: scale(1.05);
}
/* 角标（标签）定位在图片左上方或右上方 */
.ep-badge-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  color: #ffffff;
  background-color: var(--accent-blue); /* 品牌主色 */
  border-radius: 4px;
  z-index: 2;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}
/* 卡片下方文字内容区块 */
.ep-card-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  text-align: left;
}
 .home-product-btn {
      display: inline-block;
      width: 100%;
      text-align: center;
     padding: 12px 0;
      background-color: #f1f5f9;
      color: #0b2545;
      font-size: 14px;
      font-weight: 500;
      border-radius: 4px;
      transition: all 0.2s ease;
      margin-top: 0.2rem;
    }
    .home-product-btn:hover { background-color: var(--accent-blue); color: var(--bg-white); }
/*解决方案*/
.solutions-section .section-header{
    display: block;
}
 .solution-main .icon {
    display: inline-block;
    width: 0.3rem;
    height: 0.3rem;
    stroke-width: 0;
    stroke: var(--accent-blue);
    fill:var(--accent-blue);
    vertical-align: -0.125em;
}
        .solutions-section {
            background-color: #ffffff;
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
            padding: 0.9rem 0;
        }
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 66px;
        }
        .glass-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-card);
    transition: var(--transition-base);
}
        .solution-card {
            padding: 22px 36px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            height: 100%;
            text-align: left;
        }
        .solution-card:hover {
            transform: translateY(-8px);
            border-color: var(--color-primary-light);
            box-shadow: var(--shadow-hover);
        }
        .solution-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin-bottom: 24px;
        }
        .icon-blue { background-color: var(--color-primary-bg); color: var(--primary-accent); }
        .icon-teal { background-color: #f0fdf4; color: var(--color-accent); }
        .icon-sky { background-color: #e0f2fe; color: #0284c7; }
        .solution-title {
            font-size: 0.28rem;
            font-weight: 800;
            color: var(--color-bg-dark);
            margin-bottom: 12px;
        }
        .solution-desc {
            font-size: 0.16rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            margin-bottom: 24px;
        }
        .feature-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom:12px;
        }
        .feature-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.16rem;
            font-weight: 600;
            color: var(--bg-dark);
        }
        .check-icon {
            color: var(--color-emerald);
            flex-shrink: 0;
        }
        .card-footer {
            padding-top: 20px;
            border-top: 1px solid var(--color-primary-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .applicability-tag {
            font-size: 0.14rem;
            font-weight: 700;
            color: var(--color-text-light);
        }
        .btn-circle {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--color-bg-main);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-main);
            transition: var(--transition-base);
        }
        .solution-card:hover .btn-circle {
            background-color: var(--accent-blue);
            color: #ffffff;
        }
        .card-footer .icon{
            width: 0.2rem;
            height: 0.2rem;
        }
         .solution-main .hero-section {
           background: url(../images/lihelogo.png) no-repeat;
    background-color: var(--bg-subtle);
    background-position: 46% 77%;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
        }
        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 100px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            background-color: var(--color-primary-bg);
            border: 1px solid var(--color-primary-light);
            color: var(--color-primary-dark);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1px;
            text-transform: uppercase;
            width: fit-content;
        }
        .ping-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--color-primary);
            position: relative;
        }
        .ping-dot::after {
            content: '';
            position: absolute;
            inset: -4px;
            border-radius: 50%;
            background-color: var(--color-primary);
            opacity: 0.4;
            animation: pulse 1.5s infinite;
        }
        @keyframes pulse {
            0% { transform: scale(0.8); opacity: 0.8; }
            100% { transform: scale(2.2); opacity: 0; }
        }
  
        .hero-description {
            font-size: 0.32rem;
            color: var(--accent-blue);
            line-height: 1.7;
            text-align: left;
            font-weight: 300;
        }
        .hero-description strong {
            color: var(--color-text-main);
        }
        .hero-metrics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .metric-card {
            padding: 18px;
            text-align: center;
            border-left: 4px solid var(--color-primary);
        }
        .metric-value {
            font-size: 28px;
            font-weight: 900;
            color: var(--color-bg-dark);
            line-height: 1;
        }
        .metric-unit {
            font-size: 14px;
            color: var(--color-primary-dark);
            font-weight: 700;
        }
        .metric-label {
            font-size: 0.14rem;
            color: var(--color-text-muted);
            margin-top: 6px;
            font-weight: 400;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .solution-main .btn {
            padding: 16px 32px;
            border-radius: 4px;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition-base);
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .solution-main .btn-primary {
            box-shadow: 0 10px 25px -5px rgba(2, 132, 199, 0.3);
        }
        .solution-main .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 30px -5px rgba(2, 132, 199, 0.4);
        }
        .solution-main .btn-secondary {
            background-color: #ffffff;
            color: var(--color-text-main);
            border: 1px solid var(--color-border);
        }
        .solution-main .btn-secondary:hover {
            background-color: var(--color-bg-main);
            border-color: #cbd5e1;
        }
        /* Hero Graphic Element */
        .hero-visual {
            position: relative;
        }
        .visual-card {
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            aspect-ratio: 1 / 1;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .visual-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .badge-success {
            background-color: var(--color-emerald-bg);
            color: #047857;
            padding: 0.08rem 0.16rem;
            border-radius: var(--radius-full);
            font-size: 0.22rem;
            font-weight: 700;
        }
        .visual-graphic-center {
            margin: auto 0;
            text-align: center;
            position: relative;
            padding: 24px 0;
        }
        .rotating-ring {
            width: 240px;
            height: 240px;
            margin: 0 auto;
            border-radius: 50%;
            border: 3px dashed rgba(2, 132, 199, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            animation: spin 25s linear infinite;
        }
        @keyframes spin {
            100% { transform: rotate(360deg); }
        }
        .graphic-icon-box {
            width: 96px;
            height: 96px;
            border-radius: 50%;
            background-color: var(--color-primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 40px;
            box-shadow: inset 0 2px 6px rgba(0,0,0,0.06);
        }
        .graphic-overlay-icon {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary-dark);
            font-size: 48px;
        }
        .live-status-box {
            background-color: var(--bg-dark);
            color: #dddcdc;
            padding: 16px;
            border-radius: var(--radius-sm);
            display: flex;
            flex-direction: column;
            gap: 8px;
            text-align: left;
            font-size: 0.14rem;
        }
        .status-row {
            display: flex;
            justify-content: space-between;
        }
        .status-label { color: var(--color-text-light); }
        .status-val { color: var(--color-emerald); font-weight: 700; }
        .progress-bar {
            width: 100%;
            height: 6px;
            background-color: var(--color-bg-dark-card);
            border-radius: var(--radius-full);
            overflow: hidden;
        }
        .progress-fill {
            height: 100%;
            background-color: var(--color-emerald);
            width: 99.98%;
            border-radius: var(--radius-sm);
        }
.products-section {
            background-color: var(--bg-subtle);
            padding: 120px 0;
        }
        .products-layout {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 48px;
            text-align: center;
        }
             .products-layout .section-title{
                 text-align: left;
             }
        .tab-menu {
            display: flex;
            flex-direction: column;
            gap: 26px;
            margin-top: 24px;
        }
        .tab-button {
            width: 100%;
            text-align: left;
            padding: 20px 24px;
            background-color: transparent;
            border: 1px solid transparent;
            border-radius: var(--radius-md);
            font-size: 0.18rem;
            font-weight: 700;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .tab-button.active {
            background-color: var(--bg-white);
            border-color: var(--border-color);
            color: var(--text-primary);
            box-shadow: var(--box-shadow);
        }
        .tab-content-panel {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-md);
            min-height: 380px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .tab-panel {
            display: none;
            opacity: 0;
            transition: opacity 0.4s ease;
        }
        .tab-panel.active {
            display: block;
            opacity: 1;
        }
        .panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 16px;
            margin-bottom: 24px;
        }
        .panel-title {
            font-size: 22px;
            font-weight: 800;
        }
        .panel-tag {
            background-color: rgba(37, 99, 235, 0.08);
            color: var(--color-accent);
            font-size: 0.16rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-full);
        }
        .specs-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 24px;
        }
        .spec-item {
            background-color: var(--bg-primary);
            padding: 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            font-size: 0.1rem;
            text-align: left;
        }
        .spec-label {
            font-size: 0.16rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 0.12rem;
            display: block;
        }
        .spec-value {
            font-size: 14px;
            font-weight: 700;
        }
        .panel-desc {
            font-size: 0.16rem;
            color: var(--text-secondary);
            line-height: 1.6;
            text-align: left;
        }
        .section-description {
    font-size: 0.22rem;
    font-weight: 300;
    text-align: left;
}
.card-image-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-top: -150px;
    margin-bottom: 0.18rem;
}
.card-image-wrapper img {
    max-width: 80%;
    height: auto;
    object-fit: contain;
}
.solution-main  .content-section .section-header{
    margin-bottom: 0.5rem;
}
.solution-main .content-section{
    border:none;
    box-shadow: none;
    padding-top: 0.9rem;
    padding-bottom: 0;
}
.solution-main  .section-header {
    margin-bottom: 1.5rem;
}
/*工业计算器*/
 .calculator-wrapper{
    background: var(--bg-subtle);
    padding-bottom: 0.9rem;
 }
 .calculator-body {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
             max-width: 1324px;
        box-shadow: var(--shadow);
        margin: 0 auto;
        margin-top: 0.9rem;
        border-radius: var(--radius-sm);
        overflow: hidden;
    border: 0.01rem solid rgba(223, 225, 230, 0.6)
        }
        @media (max-width: 9.00rem) { /* 900px */
            .calculator-body {
                grid-template-columns: 1fr;
            }
        }
        /* Input Controls Section */
        .calculator-inputs {
            padding: 0.40rem; /* 40px */
            border-right: 0.01rem solid var(--border); /* 1px */
        }
        @media (max-width: 9.00rem) { /* 900px */
            .calculator-inputs {
                border-right: none;
                border-bottom: 0.01rem solid var(--border);
            }
        }
        .form-section-title {
            font-size: 0.18rem; /* 18px */
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 0.20rem; /* 20px */
            display: flex;
            align-items: center;
            gap: 0.08rem; /* 8px */
        }
        .form-section-title .svg-icon {
            color: var(--color-accent);
        }
        .form-group {
            margin-bottom: 0.22rem; /* 22px */
                line-height: 0.23rem;
        }
        .form-label {
            display: block;
            font-size: 0.14rem; /* 14px */
            font-weight: 600;
            color: var(--text-muted);
            margin-bottom: 0.08rem; /* 8px */
        }
        .form-control, .form-select {
            width: 100%;
            padding: 0.12rem 0.16rem; /* 12px 16px */
            font-size: 0.15rem; /* 15px */
             border: 0.02rem solid var(--border-color); /* 2px */
            border-radius: 4px;
            background-color: #fff;
            color: var(--text-main);
            transition: var(--transition);
            outline: none;
        }
        .form-control:focus, .form-select:focus {
                   border: 0.02rem solid var(--secondary-accent); /* 2px */
            box-shadow: var(--box-shadow);
        }
        /* Input with Unit Styling */
        .input-group {
            position: relative;
            display: flex;
            align-items: center;
        }
        .input-group .form-control {
            padding-right: 0.50rem; /* 50px */
        }
        .input-unit {
            position: absolute;
            right: 0.15rem; /* 15px */
            font-size: 0.13rem; /* 13px */
            font-weight: 500;
            color: var(--text-muted);
            pointer-events: none;
        }
        /* Radio Buttons Cards for Material Selection */
        .material-selector {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0.10rem; /* 10px */
            margin-bottom: 0.22rem; /* 22px */
        }
        .material-option {
            position: relative;
        }
        .material-option input[type="radio"] {
            position: absolute;
            opacity: 0;
            width: 0;
            height: 0;
        }
        .material-card {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 0.12rem 0.08rem; /* 12px 8px */
            border: 0.02rem solid var(--border); /* 2px */
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: var(--transition);
            background: #fff;
            text-align: center;
        }
        .material-card .svg-icon {
            font-size: 0.20rem; /* 20px */
            margin-bottom: 0.04rem; /* 4px */
            color: var(--text-muted);
            transition: var(--transition);
        }
        .material-card span {
            font-size: 0.16rem; /* 13px */
            font-weight: 600;
        }
        .material-option input[type="radio"]:checked + .material-card {
            border-color: var(--primary);
            background-color: var(--accent-blue);
            color: var(--bg-white);
        }
        .material-option input[type="radio"]:checked + .material-card .svg-icon {
            color: var(--primary);
        }
        /* Dynamic Fields Grid */
        .dynamic-fields-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0.15rem; /* 15px */
        }
        /* Results Display Section */
        .calculator-outputs {
            padding: 0.40rem; /* 40px */
            background: #fafbfc;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .result-cards-container {
            display: flex;
            flex-direction: column;
            gap: 0.20rem; /* 20px */
        }
        .result-card {
            background: var(--bg-subtle);
            border-radius: var(--radius-md);
            padding: 0.24rem; /* 24px */
            border: 0.01rem solid var(--border-color); /* 1px */
            box-shadow: 0 0.04rem 0.12rem rgba(0,0,0,0.03); /* 4px 12px */
            position: relative;
            overflow: hidden;
        }
        .result-card.highlight {
            background: linear-gradient(135deg, #ffffff 0%, #f0f5ff 100%);
            border-color: #b3d4ff;
        }
        .result-card.highlight::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 0.04rem; /* 4px */
            background: var(--primary);
        }
        .result-label {
            font-size: 0.22rem; /* 14px */
            font-weight: 600;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.005rem; /* 0.5px */
            margin-bottom: 0.08rem; /* 8px */
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .result-value-wrapper {
            display: flex;
            align-items: baseline;
            gap: 0.08rem; /* 8px */
        }
        .result-value {
            font-size: 0.35rem; /* 35px */
            font-weight: 700;
            color: var(--text-main);
            line-height: 1;
        }
        .result-unit {
            font-size: 0.16rem; /* 16px */
            font-weight: 500;
            color: var(--text-muted);
        }
        /* Action Buttons */
        .action-group {
            display: flex;
            gap: 0.15rem; /* 15px */
            margin-top: 0.30rem; /* 30px */
        }
       .calculator-wrapper .btn {
            flex: 1;
            padding: 0.14rem 0.20rem; /* 14px 20px */
            font-size: 0.15rem; /* 15px */
            font-weight: 600;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.08rem; /* 8px */
        }
       .calculator-wrapper .btn-primary {
            background-color: var(--accent-blue);
            color: #fff;
            box-shadow: 0 0.04rem 0.12rem rgba(0, 82, 204, 0.2);
        }
       .calculator-wrapper .btn-primary:hover {
            background-color: var(--primary-accent);
            transform: translateY(-0.01rem); /* -1px */
        }
        .calculator-wrapper .btn-secondary {
            background-color: #ebecf0;
            color: var(--text-main);
        }
       .calculator-wrapper .btn-secondary:hover {
            background-color: #dfe1e6;
        }
        .svg-icon {
            width: 2em;
            height: 2em;
            fill: var(--color-accent);
            display: inline-block;
            vertical-align: -0.125em;
            flex-shrink: 0;
        }
        .calculator-wrapper .about-hero{
            height: 60vh;
        }
       .calculator-wrapper .about-hero-title::before{
         margin-left: 0;
       }
/* FAQ  页面 */
.lh-faq-hero {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #090d16 100%);
            color: #ffffff;
            padding: 1.2rem 0;
            border-bottom: 1px solid #1e293b;
            overflow: hidden;
        }
        .lh-faq-hero__grid {
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px);
            background-size: 0.24rem 0.24rem;
            opacity: 0.2;
            pointer-events: none;
        }
        .lh-faq-hero__glow {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 6rem;
            height: 3rem;
            background: rgba(2, 132, 199, 0.12);
            filter: blur(120px);
            border-radius: 50%;
            pointer-events: none;
        }
        .lh-faq-hero__container {
            max-width: 11rem;
            margin: 0 auto;
            padding: 0 0.16rem;
            text-align: center;
            position: relative;
            z-index: 10;
        }
        .lh-faq-hero__badge {
            display: inline-flex;
            align-items: center;
            gap: 0.06rem;
            font-size: 0.18rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: #38bdf8;
            background: rgba(56, 189, 248, 0.1);
            border: 1px solid rgba(56, 189, 248, 0.2);
            padding: 0.06rem 0.14rem;
            border-radius: var(--radius-full);
            margin-bottom: 0.16rem;
        }
        .lh-faq-hero__title {
            font-size: 0.32rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }
        .lh-faq-hero__title span{
            color: rgb(56 189 248 / var(--tw-text-opacity, 1));
        }
        @media (min-width: 640px) {
            .lh-faq-hero__title { font-size: 0.5rem; }
        }
        .lh-faq-hero__subtitle {
            margin: 0.28rem;
            color: #cbd5e1;
            font-size: 0.22rem;
            font-weight: 300;
            margin-left: auto;
            margin-right: auto;
        }
        .lh-faq-hero__search-box {
            margin-top: 0.32rem;
            max-width: 5.76rem;
            margin-left: auto;
            margin-right: auto;
        }
        .lh-search-input-group {
            position: relative;
            display: flex;
            align-items: center;
        }
        .lh-search-input-group__icon {
            position: absolute;
            left: 0.16rem;
            color: var(--color-text-light);
            pointer-events: none;
        }
        .lh-search-input {
            width: 100%;
            padding: 0.16rem 0.96rem 0.16rem 0.44rem;
            background-color: rgba(30, 41, 59, 0.8);
            border: 1px solid rgba(51, 65, 85, 0.8);
            border-radius: var(--radius-xl);
            color: #ffffff;
            font-size: 0.15rem;
            outline: none;
            backdrop-filter: blur(8px);
            transition: all 0.3s ease;
            box-shadow: 0 0.2rem 0.25rem -0.05rem rgba(0, 0, 0, 0.3);
        }
        .lh-search-input::placeholder { color: var(--color-text-light); }
        .lh-search-input:focus {
            border-color: #38bdf8;
            background-color: #0f172a;
            box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.4);
        }
        .lh-search-count {
            position: absolute;
            right: 0.16rem;
            font-size: 0.12rem;
            font-weight: 500;
            color: #38bdf8;
            background: rgba(8, 47, 73, 0.6);
            border: 1px solid rgba(12, 74, 110, 0.5);
            padding: 0.04rem 0.1rem;
            border-radius: var(--radius-full);
        }
        .lh-search-count.is-hidden { display: none; }
        /* ==========================================================================
           4. 主体布局 (隔离 class 名称)
           ========================================================================== */
        .lh-faq-main {
            padding-top: 0.48rem;
            padding-bottom: 0.48rem;
        }
        .lh-faq-main__grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0.32rem;
            align-items: start;
        }
        @media (min-width: 1024px) {
            .lh-faq-main__grid { grid-template-columns: 3.2rem 1fr; }
        }
        .lh-faq-sidebar {
            display: flex;
            flex-direction: column;
            gap: 0.16rem;
        }
        @media (min-width: 1024px) {
            .lh-faq-sidebar { position: sticky; top: 1.12rem; }
        }
        .lh-faq-sidebar__nav-card { padding: 0 0.16rem 0.16rem; }
        .lh-sidebar-header {
            font-size: 0.2rem;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--color-text-light);
            text-align: left;
            margin-bottom: 0.2rem;
        }
        .lh-category-nav {
            display: flex;
            flex-direction: column;
            gap: 0.14rem;
            margin-top: 0.04rem;
        }
        .lh-category-nav__item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.15rem;
            font-size: 0.16rem;
            font-weight: 500;
            color: #334155;
            border-left: 3px solid transparent;
            transition: all 0.2s ease;
        }
        .lh-category-nav__item:hover { background-color: #f8fafc; }
        .lh-category-nav__item.is-active {
            background-color: var(--color-primary-light);
            color: var(--color-primary);
            border-left-color: var(--color-primary);
            font-weight: 600;
        }
        .lh-category-nav__label { display: flex; align-items: center; gap: 0.08rem; }
        .lh-category-nav__icon { color: var(--color-primary); }
        .lh-category-nav__arrow { opacity: 0.4; }
        .lh-support-card {
            padding: 0.24rem;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: #ffffff;
            border-radius: var(--radius-sm);
            text-align: left;
        }
        .lh-support-card__icon {
            width: 0.4rem;
            height: 0.4rem;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 0.16rem;
            color: #38bdf8;
        }
        .lh-support-card__title { font-size: 0.2rem; font-weight: 700; }
        .lh-support-card__desc { font-size: 0.16rem; color: #cbd5e1; margin-top: 0.08rem; line-height: 1.8; }
        .lh-support-card__tell {   
              font-size: 0.2rem;
    font-weight: 700;
    color: #cbd5e1;
    margin-top: 0.1rem;
    line-height: 1.6; }
        .lh-support-card__link {
            display: inline-flex;
            align-items: center;
            gap: 0.04rem;
            margin-top: 0.16rem;
            font-size: 0.16rem;
            font-weight: 600;
            color: #38bdf8;
            transition: color 0.2s ease;
        }
        .lh-support-card__link:hover { color: #7dd3fc; }
        /* ==========================================================================
           5. FAQ 内容区 (命名空间隔离)
           ========================================================================== */
        .lh-faq-content {
            display: flex;
            flex-direction: column;
            gap: 0.22rem;
            border: 0.01rem solid var(--color-border);
            box-shadow: var(--shadow-card);
            border-radius: var(--radius-sm);
        }
        .lh-faq-section { padding: 0.24rem; }
        .lh-faq-section__header {
            display: flex;
            align-items: center;
            gap: 0.12rem;
            margin-bottom: 0.24rem;
            padding-bottom: 0.16rem;
            border-bottom: 1px solid var(--color-border-light);
        }
        .lh-faq-section__tag {
            font-size: 0.12rem;
            font-weight: 700;
            color: var(--color-primary);
            background-color: var(--color-primary-light);
            padding: 0.04rem 0.1rem;
            border-radius: 0.04rem;
        }
        .lh-faq-section__title { font-size: 0.24rem; font-weight: 700; color: var(--accent-blue); }
        .lh-faq-section__list { display: flex; flex-direction: column; gap: 0.16rem; }
        /* 手风琴单个卡片 */
        .lh-faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
            background-color: rgba(248, 250, 252, 0.5);
            transition: all 0.2s ease;
        }
        .lh-faq-item:hover {
            background-color: #ffffff;
            border-color: var(--color-border);
        }
        .lh-faq-item__button {
            width: 100%;
            padding: 0.16rem 0.2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            text-align: left;
            background: none;
            border: none;
            cursor: pointer;
            outline: none;
        }
        .lh-faq-item__title-wrap { display: flex; align-items: center; gap: 0.12rem; }
        .lh-faq-item__badge {
            width: 0.26rem;
            height: 0.26rem;
            border-radius: 50%;
            background-color: #e0f2fe;
            color: var(--color-primary);
            font-weight: 400;
            font-size: 0.14rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .lh-faq-item__question { font-weight: 500; color: #1e293b; font-size: 0.18rem; }
        .lh-faq-tag {
            font-size: 0.14rem;
            font-weight: 400;
            padding: 0.02rem 0.08rem;
            border-radius: var(--radius-full);
            flex-shrink: 0;
        }
        .lh-faq-tag--hot { background-color: #fff1f2; color: #e11d48; border: 1px solid #ffe4e6; }
        .lh-faq-tag--recommend { background-color: #f0f9ff; color: var(--color-primary); border: 1px solid #e0effe; }
        .lh-faq-item__icon {
            color: var(--color-text-light);
            transition: transform 0.3s ease;
            margin-left: 0.08rem;
        }
        .lh-faq-item__content {
            height: 0;
            overflow: hidden;
            opacity: 0;
            padding-left: 0.2rem;
            padding-right: 0.2rem;
        }
        .lh-faq-item__text {
            padding-top: 0.16rem;
            padding-bottom: 0.16rem;
            font-size: 0.16rem;
            color: var(--bg-dark);
            border-top: 1px solid #f1f1f1;
            line-height: 1.7;
            text-align: left;
        }
        /* 无搜索结果占位符 */
        .lh-faq-empty {
            display: none;
            text-align: center;
            padding: 0.6rem 0.2rem;
            color: var(--color-text-muted);
            font-size: 0.22rem;
        }
        .lh-faq-empty__icon {
            width: 0.48rem;
            height: 0.48rem;
            margin-bottom: 0.12rem;
            color: var(--color-text-light);
        }
.lh-svg-icon {
            display: inline-block;
            stroke-width: 0;
            stroke: currentColor;
            fill: currentColor;
            vertical-align: middle;
            flex-shrink: 0;
        }
        .lh-svg-icon--stroke {
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            z-index: 1;
        }
        ::selection {
            background-color: var(--color-primary);
            color: #ffffff;
        }
/*选型对照表*/
/* 2. 转换后的样式类 */
.filter-toolbar {
  background-color: var(--clr-bg-card);
  border: 0.01rem solid var(--clr-border); /* 1px */
  border-radius: var(--radius-md);
  padding: 0.24rem; /* 原 1.5rem (24px) */
  margin-bottom: 0.24rem; /* 原 1.5rem (24px) */
  display: flex;
  flex-direction: column;
  gap: 0.2rem; /* 原 1.25rem (20px) */
  box-shadow: var(--shadow);
}
.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.12rem; /* 原 0.75rem (12px) */
}
.category-tabs__btn {
  background: var(--clr-bg-input);
  border: 0.01rem solid transparent; /* 1px */
  color: #334155;
  padding: 0.096rem 0.192rem; /* 原 0.6rem (9.6px) 1.2rem (19.2px) */
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.1472rem; /* 原 0.92rem (14.72px) */
  font-weight: 600;
  transition: var(--transition-base);
  display: flex;
  align-items: center;
  gap: 0.08rem; /* 8px */
}
.category-tabs__btn:hover {
  border-color: var(--accent-blue);
  color: var(--clr-primary);
  background-color: #ffffff;
}
.category-tabs__btn--active {
  background: var(--accent-blue);
  color: #ffffff !important;
  border-color: transparent;
  box-shadow: 0 0.04rem 0.12rem var(--clr-primary-glow); /* 0 4px 12px */
}
.search-box {
  position: relative;
  width: 100%;
  font-size: 0.1rem;
}
.search-box__input {
  width: 100%;
  padding: 0.128rem 0.16rem 0.128rem 0.448rem; /* 原 0.8rem 1rem 0.8rem 2.8rem */
  background-color: var(--clr-bg-input);
  border: 0.01rem solid var(--clr-border); /* 1px */
  border-radius: var(--radius-sm);
  color: var(--clr-text-main);
  font-size: 0.152rem; /* 原 0.95rem (15.2px) */
  outline: none;
  transition: var(--transition-base);
}
.search-box__input:focus {
  background-color: #ffffff;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 0.03rem var(--clr-primary-glow); /* 3px */
}
.search-box__icon {
    position: absolute;
    left: 13px;
    top: 51%;
    transform: translateY(-50%);
    color: var(--clr-text-muted);
    width: 0.2rem;
    height: 0.2rem;
}
/* ==========================================================================
   4. 对照数据表格样式
   ========================================================================== */
.standards-container {
  background-color: var(--clr-bg-card);
  border: 0.01rem solid var(--clr-border); /* 1px */
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.standards-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}
.standards-table__head {
  background-color: #f1f5f9;
  border-bottom: 0.02rem solid var(--clr-border); /* 2px */
}
.standards-table__th {
  padding: 0.16rem 0.16rem; /* 原 1rem (16px) */
  font-size: 0.1408rem; /* 原 0.88rem (14.08px) */
  text-transform: uppercase;
  letter-spacing: 0.005rem; /* 0.5px */
  color: #334155;
  font-weight: 700;
}
.standards-table__row {
  border-bottom: 0.01rem solid var(--clr-border); /* 1px */
  transition: var(--transition-base);
}
.standards-table__row:nth-child(even) {
  background-color: var(--clr-table-stripe);
}
.standards-table__row:hover {
  background-color: #f0f9ff;
}
.standards-table__td {
  padding: 0.176rem 0.16rem; /* 原 1.1rem (17.6px) 1rem (16px) */
  font-size: 0.1488rem; /* 原 0.93rem (14.88px) */
  color: #334155;
}
.metal-badge {
  display: inline-block;
  padding: 0.04rem 0.104rem; /* 原 0.25rem (4px) 0.65rem (10.4px) */
  border-radius: 0.04rem; /* 4px */
  font-size: 0.16rem; /* 原 0.8rem (12.8px) */
  font-weight: 600;
}
.metal-badge--titanium { background: #e0f2fe; color: #0284c7; }
.metal-badge--nickel { background: #f3e8ff; color: #7e22ce; }
.metal-badge--copper { background: #ffedd5; color: #c2410c; }
.metal-badge--stainless { background: #dcfce7; color: #15803d; }
.metal-badge--zirconium { background: #fef9c3; color: #a16207; }
.tag-standard {
  color: var(--clr-highlight);
  font-family: monospace;
  font-weight: 700;
}
.empty-state {
  padding: 0.48rem; /* 原 3rem (48px) */
  text-align: center;
  color: var(--text-muted);
  display: none;
  font-size: 0.22rem;
}
.empty-state__icon {
  width: 0.4rem; /* 原 2.5rem (40px) */
  height: 0.4rem; /* 原 2.5rem (40px) */
  margin-bottom: 0.08rem; /* 原 0.5rem (8px) */
  color: var(--clr-text-muted);
}
.filter-box{
    background: var(--bg-subtle);
    padding: 50px 0;
}
.category-tabs__btn--active:hover{
  background: var(--accent-blue);
}
/*联系我门*/
/* 联系我们 */
/* 左侧区域 (使用语义化标签 section) */
.contact-box{
    padding: 1.2rem 0;
    text-align: left;
        display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem;
}
        .contact-box .left-section {
            flex: 1;
            padding: 60px 50px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            width: 100%;
        }
        .title-group h1 {
            font-size: 0.32rem;
            font-weight: 400;
            line-height: 1.3;
            color: var(--text-black);
        }
        .title-group p {
               font-size: 0.32rem;
            font-weight: 400;
            line-height: 1.3;
            color: var(--text-black);
            margin-top: 4px;
        }
        /* 视频封面卡片 */
        .video-card {
            position: relative;
            width: 100%;
          
            height: 384px;
            margin: 0.6rem 0 ;
            border-radius: 24px;
            overflow: hidden;
            cursor: pointer;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
            background: #222 url('../images/contact-lh.jpg') center/cover no-repeat;
            transition: transform 0.3s ease;
            border: none;
            text-align: left;
        }
        .video-card:hover {
            transform: scale(1.02);
        }
        .contact-box .play-btn {
            position: absolute;
            left: 24px;
            bottom: 24px;
            width: 48px;
            height: 48px;
            background: rgba(0, 0, 0, 0.7);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            backdrop-filter: blur(4px);
            transition: background 0.3s;
        }
       .contact-box  .play-btn::after {
            content: '';
            display: block;
            width: 0;
            height: 0;
            border-style: solid;
            border-width: 8px 0 8px 14px;
            border-color: transparent transparent transparent #ffffff;
            margin-left: 3px;
        }
        .video-card:hover .play-btn {
            background: rgba(0, 0, 0, 0.9);
        }
        .client-text {
            font-size: 0.2rem;
            color: var(--text-black);
            margin-bottom: 20px;
        }
        /* 品牌 Logo 列表区域 */
        .brand-logos {
            display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 44px 53px;
    align-items: center;
    max-width: 480px;
    opacity: 0.85;
    font-weight: bold;
    color: #333;
    list-style: none;
        }
        .brand-item {
            font-size: 14px;
            text-align: center;
            letter-spacing: 1px;
        }
        /* 右侧表单区 */
        .contact-box  .right-section {
            flex: 1;
             background-color: #e2f5ff;
            padding: 60px 50px;
            border-radius: 24px;
            box-shadow: var(--shadow-card);
        }
        .form-title {
            font-size: 36px;
            font-weight: 400;
            margin-bottom: 30px;
            color: #1a1a1a;
        }
        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px 16px;
            margin-bottom: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group.full-width {
            grid-column: span 2;
            border: none;
            background: none;
        }
       .contact-box .form-group label {
            font-size: 0.2rem;
            color: #333;
            margin-bottom: 6px;
        }
     
        .form-control {
            width: 100%;
            padding: 12px 14px;
            background: rgba(255, 255, 255, 0.4);
            border: 1px solid #dcd7ce;
            border-radius: 8px;
            font-size: 0.16rem;
            outline: none;
            transition: border-color 0.2s, background-color 0.2s;
            font-family: pingfang sc;
        }
        .form-control:focus {
            border-color: #333;
            background: #fff;
        }
        textarea.form-control {
            height: 140px;
            resize: none;
        }
        .checkbox-group {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 24px;
            font-size: 0.16rem;
            color: #555;
        }
        .checkbox-group input {
            width: 16px;
            height: 16px;
            accent-color: #222;
            cursor: pointer;
        }
        .checkbox-group a {
            color: #555;
            text-decoration: underline;
        }
        .submit-btn {
            width: 100%;
            padding: 14px;
            background-color: #222;
            color: #fff;
            border: none;
            border-radius: 24px;
            font-size: 18px;
            font-weight: 800;
            cursor: pointer;
            transition: background-color 0.2s;
        }
        .submit-btn:hover {
            background-color: #000;
        }
        /* 视频弹窗 Modal */
       /* 优化后的 Modal 样式 */
.modal {
    display: none; /* 默认隐藏，由 GSAP/jQuery 控制 */
    opacity: 0;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.85);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    /* 移除 css 中的 transition，避免与 GSAP 冲突 */
}
.modal-content {
    position: relative;
    width: 80%;
    max-width: 900px;
    aspect-ratio: 16 / 9;
    background-color: #000;
    border-radius: 12px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.5);
    will-change: transform, opacity; /* 提升渲染性能 */
}
        .modal.active {
            display: flex;
            opacity: 1;
        }
        .modal-content video {
            width: 100%;
            height: 100%;
            border-radius: 12px;
            object-fit: cover;
        }
        .close-btn {
     position: absolute;
    top: -75px;
    right: 0;
    color: #ffffff;
    font-size: 63px;
    font-weight: 300;
    cursor: pointer;
    background: none;
    border: none;
    line-height: 1;
    user-select: none;
    transition: color 0.2s, transform 0.2s;
        }
        .close-btn:hover {
            
            transform: scale(1.3);
            background: none;
        }
.page-title {
    font-size: 44px;
    font-weight: 600;
    color: #222;
    margin-bottom: 60px;
    letter-spacing: 1px;
}
   .page-title {
            font-size: 44px;
            font-weight: 600;
            color: #222;
            margin-bottom: 60px;
            letter-spacing: 1px;
        }
        .office-card {
          font-style: normal;
        }
        .office-name {
            font-size: 0.26rem;
            font-weight: 500;
            color: #2b2b2b;
            margin-bottom: 16px;
        }
        .info-icon {
    width: 25px;
    height: 25px;
    margin-right: 10px;
    margin-top: 3px;
    flex-shrink: 0;
    fill: var(--accent-blue);
}
.info-item {
    display: flex;
    align-items: flex-start;
    font-size: 0.22rem;
    color: #666;
    margin-bottom: 12px;
    line-height: 1.6;
}
   /* 右侧地图与图片展示区 */
        .right-graphics {
            flex: 1.2;
            position: relative;
            display: flex;
            justify-content: flex-end;
            align-items: center;
            min-height: 520px;
            margin-top: 1.9rem;
        }
        /* 地图背景 SVG 抽象版图 */
        .map-bg {
          position: absolute;
    top: 27%;
    left: -38%;
    transform: translateY(-50%);
    width: 80%;
    height: auto;
    z-index: 3;
    pointer-events: none;
        }
        /* 定位标点与连接线 */
        .pin-point {
             position: absolute;
    top: 11%;
    left: 16%;
    z-index: 7;
    display: flex;
    align-items: center;
        }
   .contact-box .dot {
  position: relative;
  width: 16px;
  height: 16px;
  background-color: #eef1a6; /* 蓝色中心点 */
  border-radius: 50%;
  margin-bottom: 0;
}
/* 伪元素：外围闪烁黄色圆环 */
.contact-box .dot::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  border: 3px solid var(--bg-subtle); /* 黄色外环 */
  border-radius: 50%;
  /* 将伪元素居中对齐到圆点中心 */
  transform: translate(-50%, -50%);
  /* 绑定动画：名称 持续时间 循环方式 */
  animation: pulse 1.8s infinite ease-out;
  box-sizing: border-box;
}
/* 闪烁扩散动画定义 */
@keyframes pulse {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(2.2); /* 控制外环扩散最大倍数 */
    opacity: 0; /* 逐渐透明隐藏 */
  }
}
        .line {
            width: 180px;
            height: 1px;
            background-color: #8c8275;
            opacity: 0.6;
        }
        /* 关联公司名字 */
        .pinned-title {
          position: absolute;
    top: -8px;
    right: -318px;
    font-size: 20px;
    font-weight: 500;
    color: #333;
    white-space: nowrap;
        }
        /* 右侧现实图片卡片 */
        .office-photo-card {
            position: relative;
            z-index: 3;
            width: 100%;
            max-width: 540px;
            height: 406px;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 12px 30px rgba(0,0,0,0.06);
            margin-top: 100px;
            cursor: pointer;
            transition: transform 0.3s ease;
        }
        .office-photo-card:hover {
            transform: translateY(-4px);
        }
        .office-photo-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
.lh-hero{
    color: #ffffff;
    text-align: center;
    position: relative;
    overflow: hidden;
    height: 70vh;
}
.hero-bg-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 120%;
    object-fit: cover;
    object-position: center bottom;
    z-index: 1;
    transform-origin: center bottom;
    will-change: transform;
    pointer-events: none;
}
.lh-hero .container {
    text-align: left;
    position: absolute;
    top: 34%;
    z-index: 1;
    left: 12%;
}
/*爆炸场与设备*/
.lh-hero-title{
    font-size: 0.62rem;
    font-weight: 300;
}
.lh-hero-subtitle{
    font-size: 0.32rem;
    margin-top: 0.2rem;
}
   /* 关键数字展示区 */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.2rem;
            background: rgb(0 0 0 / 47%);
            padding: 0.3rem;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            width: 80%;
            margin: 0 auto;
            margin-top: 0.7rem;
        }

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

        .stat-item h3 {
            font-family:  sans-serif;
            font-size: 0.52rem;
            color: #90d0ef;
            font-weight: 800;
        }

        .stat-item p {
            font-size: 0.22rem;
            color: #8d8d8d;
            margin-top: 0.2rem;
            font-weight: 500;
        }
 

        .section-title {
            text-align: center;
            margin-bottom: 0.6rem;
        }

        .section-title h2 {
            font-size: 0.37rem;
            font-weight: 800;
            color: var(--primary-navy);
            position: relative;
            display: inline-block;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -0.1rem;
            left: 50%;
            transform: translateX(-50%);
            width: 0.5rem;
            height: 0.04rem;
            background: var(--color-accent);
            border-radius: 0.02rem;
        }

        .section-title p {
            color: var(--text-muted);
            margin-top: 0.30rem;
            font-size: 0.25rem;
        }

        /* 爆炸试验场专题 Section */
        .explosion-section {
            background: var(--bg-white);
            border-bottom: 0.01rem solid var(--border-color);
        }

        .explosion-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0.5rem;
            align-items: center;
        }

        .explosion-info {
            display: flex;
            flex-direction: column;
            gap: 0.2rem;
        }

        .info-card {
            background: var(--bg-subtle);
       
            padding: 0.22rem 0.25rem;
            border-radius: 0 0.12rem 0.12rem 0;
            border: 0.01rem solid var(--border-color);
                 border-left: 0.04rem solid var(--accent-blue);
            border-left-width: 0.04rem;
            transition: all 0.3s ease;
        }

        .info-card:hover {
            transform: translateX(0.08rem);
            background: #fff;
            box-shadow: var(--shadow-card);
        }

        .info-card h4 {
            font-size: 0.24rem;
            color: var(--accent-blue);
            display: flex;
            align-items: center;
            gap: 0.1rem;
            margin-bottom: 0.08rem;
        }

        .info-card h4 .icon-svg {
            fill: var(--accent-blue);
            width: 0.2rem;
            height: 0.2rem;
        }

        .info-card p {
            color: var(--text-muted);
            font-size: 0.16rem;
            line-height: 1.7;
        }

        .explosion-visual {
            position: relative;
            border-radius: 0.16rem;
            overflow: hidden;
            border: 0.01rem solid var(--border-color);
            box-shadow: var(--shadow-lg);
        }

        .explosion-visual img {
            width: 100%;
            height: 4.6rem;
            object-fit: cover;
            display: block;
        }

        .visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            padding: 0.3rem;
            background: linear-gradient(360deg, rgba(15, 23, 42, 0.85) 0%, transparent 100%);
            color: #fff;
        }

        .visual-overlay h3 {
            font-size: 0.24rem;
            color: #fff;
        }

        .visual-overlay p {
            color: #cbd5e1;
            font-size: 0.14rem;
        }

        /* 加工设备规模 Section */
        .equipment-section {
            background: var(--bg-subtle);
        }

        .equipment-tabs {
            display: flex;
            justify-content: center;
            gap: 0.12rem;
            margin-bottom: 0.4rem;
        }

        .tab-btn {
            background: var(--bg-white);
            border: 0.01rem solid var(--border-color);
            color: var(--text-main);
            padding: 0.1rem 0.24rem;
            border-radius: 0.3rem;
            cursor: pointer;
            font-size: 0.18rem;
            font-weight: 400;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-sm);
            margin-right: 0.2rem;
        }

        .tab-btn.active, .tab-btn:hover {
            background: var(--accent-blue);
            color: #fff;
            border-color: var(--accent-blue);
            box-shadow: 0 0.04rem 0.12rem rgba(2, 132, 199, 0.3);
        }

        .equipment-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(3.2rem, 1fr));
            gap: 0.3rem;
        }

        .equip-card {
            background: var(--bg-white);
            border-radius: 0.12rem;
            overflow: hidden;
            border: 0.01rem solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

        .equip-card:hover {
            transform: translateY(-0.08rem);
            border-color: #bae6fd;
            box-shadow: var(--shadow-lg);
        }

        .equip-img {
            height: 3rem;
            overflow: hidden;
            position: relative;
        }

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

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

        .equip-body {
            padding: 0.25rem;
        }

        .equip-body h3 {
            font-size: 0.2rem;
            color: var(--primary-navy);
            margin-bottom: 0.1rem;
        }

        .equip-body p {
            font-size: 0.16rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .equip-specs {
            list-style: none;
            margin-top: 0.15rem;
            border-top: 0.01rem solid var(--border-color);
            padding-top: 0.15rem;
        }

        .equip-specs li {
            display: flex;
            justify-content: space-between;
            font-size: 0.14rem;
            margin-bottom: 0.08rem;
            color: var(--text-muted);
        }

        .equip-specs li span {
            color: var(--primary-navy);
            font-weight: 700;
        }

        /* 复合材料能力表格 */
        .capability-section {
            background: var(--bg-white);
            border-top: 0.01rem solid var(--border-color);
        }

        .cap-box {
            background: var(--bg-white);
            border-radius: 0.16rem;
            padding: 0.3rem;
            border: 0.01rem solid var(--border-color);
            box-shadow: var(--shadow-lg);
            overflow-x: auto;
        }

        .cap-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

        .cap-table th, .cap-table td {
            padding: 0.18rem 0.2rem;
            border-bottom: 0.01rem solid var(--border-color);
            font-size: 0.15rem;
        }

        .cap-table th {
            background: #f1f5f9;
            color: var(--primary-navy);
            font-weight: 700;
        }

        .cap-table tr:hover td {
            background: #f8fafc;
        }
.lh-center .container {
    text-align: left;
    position: absolute;
    top: 30%;
    z-index: 1;
    left: 0%;
    width: 100%;
    text-align: center;
    font-weight: 300;
}
.lh-about-equipment section{
    padding: 1rem 8%;
}
.lh-about-equipment .content-section{
    border:none;
    box-shadow: none;
    width: 100%;
        background: var(--bg-subtle);
        margin-bottom: 0;
}
/*资质荣誉*/
/* Controls 区域 */
    .controls-wrapper {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: 0.3rem;    /* 30px */
      margin-bottom: 0.3rem; /* 30px */
    }

    /* 左右控制按钮及禁用状态 */
    .nav-buttons {
      display: flex;
      gap: 0.1rem; /* 10px */
    }
 
    /* 卡片显示区域及两行网格布局结构 */
    .hero-cards-container {
      position: relative;
      overflow: hidden;
      width: 100%;
      min-height: 4.8rem; /* 480px 预防布局抖动 */
    }

    .hero-cards-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 0.4rem; /* 20px */
      width: 100%;
    }

    /* 响应式适配 */
    @media (max-width: 992px) {
      .hero-cards-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 576px) {
      .hero-cards-grid {
        grid-template-columns: 1fr;
      }
    }

    /* 独立英雄卡片样式 (hero-card) */
    .hero-card {
      background: #fff;
      border-radius: 0.12rem; /* 12px */
      padding: 0.16rem;      /* 16px */
      box-shadow: 0 0.04rem 0.15rem rgba(0, 0, 0, 0.03);
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      border: 1px solid #efeef0;
      transition: box-shadow 0.3s ease;
    }

    .hero-card:hover {
      box-shadow: 0 0.08rem 0.25rem rgba(0, 0, 0, 0.08);
    }

    .hero-card-img-wrapper {
      width: 100%;
      height: 2rem; /* 180px */
      background-color: #f8f9fa;
      border-radius: 0.08rem; /* 8px */
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 0.16rem; /* 16px */
    }

    .hero-card-img-wrapper img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .hero-card-title {
      font-size: 0.15rem; /* 15px */
      font-weight: 600;
      color: #333;
      margin-top: 0.04rem; /* 4px */
    }
.tab-buttons{
      font-size: 0.1rem;
}
    /* 底部进度条 */
    .bottom-line {
      width: 100%;
      height: 0.03rem; /* 3px */
      background-color: #e2e8e4;
      margin-top: 0.4rem; /* 40px */
      position: relative;
      border-radius: 0.02rem;
      overflow: hidden;
    }

    .bottom-line-active {
      height: 100%;
      background-color: var(--accent-blue);
      position: absolute;
      left: 0;
      top: 0;
      width: 50%;
      transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    }
  .lihe-hero{
    padding: 1.2rem 0;
    background: url(../images/lihe-hero.png) no-repeat;
    background-color: var(--bg-subtle);
    background-position: right -50px;
  }
  .hero-title-box{
    text-align: left;
    font-weight: 300;
  }
   .lihe-hero-title{
    font-size: 0.34rem;
    
   }
   .lihe-hero-subtitle{
    font-size: 0.22rem;
    margin: 0.2rem 0;
    line-height: 1.7;
   }
/*新闻列表页*/
.news-box{
    background: var(--bg-subtle);
}
.news-box .about-hero,.products .about-hero{
    height: 60vh;
}
.news-box .category-nav {
    display: flex;
    gap: 12px;
    align-items: center;
    padding-top: 0.5rem;
    padding-bottom: 0.8rem;
}
/* 按钮基础样式 */
.category-item {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0.1rem 0.26rem;
    font-size: 0.16rem;
    color: #666666;
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    cursor: pointer;
    user-select: none;
    transition: all 0.2s ease;
}
/* 悬停效果 */
.category-item:hover {
    border-color: var(--primary-accent);
    color: var(--primary-accent);
}
/* 选中（激活）状态 - 对应图片中的“全部”样式 */
.category-item.active {
    color: var(--primary-accent);
    background-color: #f0f7ff;
    border-color: var(--primary-accent);
}
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 60px 45px;
    padding-bottom: 1.2rem;
}
/* 新闻卡片 <article> */
.news-card {
    background: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    text-align: left;
}
/* 卡片悬浮升起 */
.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
}
.news-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    height: 100%;
}
/* 卡片顶部图片/横幅区域 */
.news-banner {
    width: 100%;
    height: 3.15rem;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    overflow: hidden;
}
.news-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
/* 卡片文字内容 */
.news-content {
    padding: 22px 20px 18px 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    background: #ffffff;
}
/* 标题截断 */
.news-title {
    font-size: 0.2rem;
    font-weight: bold;
    color: #2c3e50;
    line-height: 1.5;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.2s ease;
}
.news-card:hover .news-title {
    color: #0081ff;
}
/* 摘要截断 */
.news-excerpt {
    font-size: 0.16rem;
    color: #8a96a3;
    line-height: 1.6;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex-grow: 1;
    margin: 0.28rem 0;
}
/* 卡片底部 <article> -> <footer> */
.news-footer {
    padding-top: 14px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
/* 1. 静态浅灰色基准底线 */
.news-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: #f0f2f5;
}
/* 2. 核心动效：默认宽度 0 的蓝色线条 */
.news-footer::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    /* 初始宽度为 0 */
    height: 1.5px;
    background-color: #0081ff;
    /* 从左到右平滑动画 */
    transition: width 0.35s ease-in-out;
    z-index: 2;
}
/* 鼠标悬停卡片时，线条拉满至 100% */
.news-card:hover .news-footer::after {
    width: 100%;
}
/* 发布时间与蓝色时钟图标 */
.news-time {
    font-size: 0.14rem;
    color: #a0aec0;
    display: flex;
    align-items: center;
    gap: 6px;
}
.icon-clock {
    width: 13px;
    height: 13px;
    border: 1.5px solid #0081ff;
    border-radius: 50%;
    display: inline-block;
    position: relative;
    box-sizing: border-box;
}
.icon-clock::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 4.5px;
    width: 1px;
    height: 3.5px;
    background-color: #0081ff;
}
.icon-clock::after {
    content: '';
    position: absolute;
    top: 4.5px;
    left: 4.5px;
    width: 3px;
    height: 1px;
    background-color: #0081ff;
}
/*新闻内容页*/
.news-art h1 {
    font-size: 0.32rem;
    line-height: 0.32rem;
    color: var(--bg-dark);
    margin-bottom: 10px;
    text-align: center;
     margin-top: 0.6rem;
}
.news-art .meta {
    color: #777777;
    font-size: 0.16rem;
    text-align: center;
    padding: 0.14rem 0;
}
.news-art .meta-item {
    display: inline-block;
    margin: 0 8px;
}
.news-art header {
    text-align: center;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e0e0e0;
}
.article-body {
    line-height: 0.36rem;
    font-size: 0.18rem;
    border-bottom: 1px solid #ededed;
    padding-bottom: 0.4rem;
    color: #000;
    text-align: left;
}
.prev-next-links {
    line-height: 1.8;
    color: #555555;
}
.back-btn {
    position: relative;
    z-index: 5;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 0.4rem;
    line-height: 0.5rem;
    border-radius: 0.5rem;
    background-color: #148FFA;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s;
    border: 1px solid #148FFA;
    overflow: hidden;
    font-size: 0.16rem;
}
.back-btn:hover {
    color: #148FFA;
}
.back-btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
    width: 100%;
    height: 100%;
    background-color: #fff;
    border-radius: 25px;
    transform: scaleX(0);
    transform-origin: right;
    -webkit-transition: transform 0.6s cubic-bezier(0.785, 0.135, 0.15, 0.86);
    -moz-transition: transform 0.6s cubic-bezier(0.785, 0.135, 0.15, 0.86);
    -o-transition: transform 0.6s cubic-bezier(0.785, 0.135, 0.15, 0.86);
    transition: transform 0.6s cubic-bezier(0.785, 0.135, 0.15, 0.86);
}
.back-btn:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}
.news-art footer {
    margin-top: 0.35rem;
    text-align: justify;
    padding-top: 0.18rem;
    font-size: 0.16rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.8rem;
}
.prev-next-links a {
    transition: color 0.2s ease;
    font-weight: bold;
}
.prev-next-links a:hover {
    color: var(--accent-blue);
}
/*技术列表页*/
        .article-feed {
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 24px;
            margin-bottom: 1.2rem;
        }

        /* 文章独立条目 (article) */
        .article-card {
            display: flex;
            background-color: #f2f3f5;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
            /* GSAP 入场动画初始状态 */
            opacity: 0;
            transform: translateY(30px);
            transition: background-color 0.3s ease;
        }

        /* 封面图容器 */
        .article-thumb {
            width: 320px;
            min-width: 320px;
            height: 200px;
            background-color: var(--accent-blue); /* 默认品牌蓝背景 */
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            position: relative;
        }

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

        /* 品牌 Logo 文本标 */
        .brand-logo {
            color: #fff;
            font-size: 32px;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.5px;
            user-select: none;
        }

        .brand-logo span {
            font-size: 28px;
            font-weight: 700;
        }

        /* 文章主体内容区 */
        .article-body {
            flex: 1;
            padding: 28px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        /* 文章标题 */
        .article-title {
            font-size: 20px;
            font-weight: 700;
            color: #1d1d1f;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .article-title a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

        .article-title a:hover {
            color: #00a0e9;
        }

        /* 元信息（日期） */
        .article-meta {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: #86868b;
            margin-bottom: 14px;
        }

        .icon-calendar {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        /* 文章摘要 */
        .article-desc {
            font-size: 14px;
            color: #6e6e73;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* 移动端响应式布局 */
        @media (max-width: 768px) {
            .article-card {
                flex-direction: column;
            }
            .article-thumb {
                width: 100%;
                min-width: 100%;
                height: 180px;
            }
            .article-body {
                padding: 20px;
            }
        }
        .news-box .hero-video,.products .hero-video{
            height: 60vh;
        }
 /*产品中心*/
 .features-section {
      position: relative;
      background-color: #edf4fa; /* 淡蓝偏白背景 */
      padding: 80px 0 100px 0;
      overflow: hidden;
      text-align: center;
    }
    /* 参照图同心圆背景 */
    .features-section::before {
      content: "";
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 900px;
      height: 900px;
      border-radius: 50%;
      border: 1px solid rgba(190, 212, 233, 0.5);
      box-shadow: 
        0 0 0 120px rgba(220, 233, 245, 0.3),
        0 0 0 280px rgba(235, 243, 250, 0.4);
      z-index: 1;
      pointer-events: none;
    }
    .features-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 0.4rem;
      margin: 0.5rem 0;
    }
   
    /* SVG 图标容器定义 */
    .feature-icon {
      width: 0.6rem;
      height: 0.6rem;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .feature-icon svg {
      width: 100%;
      height: 100%;
      stroke: var(--accent-blue);
      fill: none;
      stroke-width: 1.8;
      stroke-linecap: round;
      stroke-linejoin: round;
    }
    .feature-content {
      text-align: left;
    }
    .feature-name {
 font-size: 0.22rem;
    font-weight: bold;
    color: #0f172a;
    margin-bottom: 0.14rem;
    margin-top: 0.1rem;
    }
    .feature-sub {
      font-size: 0.16rem;
      color: #64748b;
    }       
    .section-header { text-align: center; margin: 0.9rem 0; }
    .section-header h2 { font-size: 32px; color: #0b2545; }
    .section-header p { color: #64748b; margin-top: 8px; }
    .home-product-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
      gap: 30px;
      margin: 0.9rem 0;
    }
    .home-product-card {
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      overflow: hidden;
      background: #fff;
      transition: all 0.3s ease;
      text-align: left;
    }
    .home-product-card:hover {
      border-color: var(--accent-blue);
      box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    }
    .home-product-img {
      width: 100%;
      height: 3rem;
      background-color: #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .home-product-img img {
      width: 100%;
      height: 100%;
    }
    .home-product-info { padding: 20px; font-size: 0.1rem;}
    .home-product-title { font-size: 18px;   color: #1e293b; margin-bottom: 8px; }
    .home-product-desc {
      font-size: 14px;
      color: #64748b;
      margin-bottom: 16px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .home-product-btn {
      display: inline-block;
      width: 100%;
      text-align: center;
     padding: 12px 0;
      background-color: #f1f5f9;
      color: #0b2545;
      font-size: 14px;
      font-weight: 500;
      border-radius: 4px;
      transition: all 0.2s ease;
    }
    .home-product-btn:hover { background-color: var(--accent-blue); color: var(--bg-white); }
    .products .section-header p {
    text-align: left;
    font-size: 0.18rem;
}
.products .section-header {
    font-size: 22px;
    color: var(--bg-dark);
    padding-bottom: 12px;
    margin-bottom: 24px;
    border-bottom: 2px solid #e2e8f0;
    display: flex;
    align-items: center;
    gap: 12px;
}
/*产品列表页*/
 /* ---------------- 左侧产品列表悬浮栏 ---------------- */
    .sidebar-floating {
      position: fixed;
      top: 100px;
      left: 0;
      width: var(--panel-width);
      background: var(--bg-white);
      border-radius: 0 16px 16px 0;
      box-shadow: var(--shadow-premium);
      z-index: 999;
      transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
      border: 1px solid var(--border-light);
      border-left: none;
      backdrop-filter: blur(10px);
    }
    /* 收起状态：完全移出左侧屏幕 */
    .sidebar-floating.collapsed {
      transform: translateX(-100%);
    }
    /* 头部区域 */
    .sidebar-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 18px 20px;
      border-bottom: 1px solid var(--border-light);
      background: #ffffff;
      border-radius: 0 16px 0 0;
    }
    .sidebar-title {
      color: var(--text-main);
      font-size: 15px;
      font-weight: 600;
      letter-spacing: 0.5px;
      display: flex;
      align-items: center;
      gap: 10px;
      white-space: nowrap;
    }
    .sidebar-title .icon-svg {
      color: var(--accent-blue);
      font-size: 16px;
    }
    /* 展开/收起切换按钮 */
    .toggle-btn {
      background: var(--bg-subtle);
      border: 1px solid var(--border-color);
      color: var(--text-sub);
      cursor: pointer;
      width: 26px;
      height: 26px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.25s ease;
      position: absolute;
      right: -13px;
      top: 18px;
      box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    }
    .toggle-btn:hover {
      background: var(--accent-blue);
      border-color: var(--accent-blue);
    }
    .toggle-btn:hover .icon-svg{
        fill: var(--bg-white);
    }
    .toggle-btn .icon-svg {
      font-size: 12px;
      transition: transform 0.3s ease;
    }
    .sidebar-floating.collapsed .toggle-btn .icon-svg {
      transform: rotate(180deg);
    }
    /* 产品分类列表容器 */
    .sidebar-content {
      max-height: calc(100vh - 240px);
      overflow-y: auto;
      padding: 8px 0;
    }
    /* 精致极细滚动条 */
    .sidebar-content::-webkit-scrollbar {
      width: 3px;
    }
    .sidebar-content::-webkit-scrollbar-thumb {
      background: #cbd5e1;
      border-radius: 3px;
    }
    /* 菜单列表样式 */
    .product-menu {
      list-style: none;
    }
    .menu-item {
      position: relative;
    }
    .menu-link {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 20px;
      color: var(--text-main);
      text-decoration: none;
      font-size: 0.16rem;
      font-weight: 500;
      transition: all 0.2s ease;
      border-left: 3px solid transparent;
    }
    .menu-link:hover {
      background: var(--bg-subtle);
      color: var(--color-accent);
    }
    .menu-item.active > .menu-link {
      color:var(--color-accent);
      border-left-color: var(--color-accent);
      background: #f0f7ff;
    }
    .menu-link .left-info {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .menu-link .left-info .icon-svg {
      color: var(--text-sub);
      font-size: 15px;
      transition: color 0.2s ease;
    }
    .menu-link:hover .left-info .icon-svg,
    .menu-item.active .left-info .icon-svg {
      color: var(--color-accent);;
    }
    .menu-link .arrow {
      font-size: 11px;
      color: #94a3b8;
      transition: transform 0.3s ease, color 0.2s ease;
    }
    .menu-item.open > .menu-link .arrow {
      transform: rotate(180deg);
      color: var(--color-accent);;
    }
    /* 二级菜单列表 */
    .submenu {
      list-style: none;
      background: var(--bg-subtle);
      display: none;
      padding: 6px 0;
      border-top: 1px solid #f1f5f9;
      border-bottom: 1px solid #f1f5f9;
    }
    .menu-item.open > .submenu {
      display: block;
    }
    .submenu-link {
      display: flex;
      align-items: center;
      padding: 9px 20px 9px 48px;
      color: var(--text-sub);
      text-decoration: none;
      font-size: 0.14rem;
      transition: all 0.3s ease;
      position: relative;
    }
    .submenu-link:hover,
    .submenu-link.active {
      color: var(--color-accent);
    }
    .submenu-link.active::before {
      content: "";
      position: absolute;
      left: 36px;
      top: 50%;
      transform: translateY(-50%);
      width: 4px;
      height: 4px;
      border-radius: 50%;
      background-color: var(--color-accent);
    }
 
  .sidebar-floating .icon-svg {
    width: 1em;
    height: 1em;
    fill: var(--accent-blue);
    display: inline-block;
    vertical-align: -0.125em;
    flex-shrink: 0;
}
.products{
    background: var(--bg-subtle);
    overflow: hidden;
}
.catalog-spec {
    font-size: 12px;
    color: var(--accent-blue);
    background: #edf4fa;
    padding: 2px 6px;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 8px;
    width: fit-content;
}
.products-list .home-product-grid{
     display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 55px;
}
.products-list .home-product-img{
    height: 4rem;
}
 /* 产品详情主区域 */
    .product-detail-main .container { padding: 40px 0 60px 0; }
    /* 顶部 Hero 区域 */
    .product-hero-grid {
      display: grid;
      grid-template-columns: 380px 1fr 300px;
      gap: 30px;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 12px;
      padding: 30px;
      margin-bottom: 40px;
    }
    /* 左侧：产品展示图 */
    .product-gallery {
      background: linear-gradient(135deg, #f8fafc 0%, #edf4fa 100%);
      border-radius: 8px;
      height: 320px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 1px solid #e2e8f0;
      overflow: hidden;
    }
    /* 中间：产品核心摘要 */
    .product-summary h1 { font-size: 24px; color: #0b2545; font-weight: 700; margin-bottom: 12px; line-height: 1.3; text-align: left; }
    .product-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
    .tag { font-size: 12px; background: #edf4fa; color: #0066cc; padding: 3px 8px; border-radius: 4px; font-weight: 500; }
    .key-specs-list { list-style: none; margin-bottom: 20px; font-size: 0.16rem; color: #475569; }
    .key-specs-list li { margin-bottom: 0.12rem; display: flex; }
    .key-specs-list strong { width: 90px; color: #1e293b; flex-shrink: 0; }
    /* 右侧：询价卡片 */
    .inquiry-card {
      background: #f8fafc;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      padding: 20px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      text-align: left;
    }
    .inquiry-card h3 { font-size: 16px; color: #0b2545; margin-bottom: 10px; }
    .inquiry-card p { font-size: 13px; color: #64748b; margin-bottom: 15px; }
    .contact-btn-primary {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: var(--accent-blue);
      color: #ffffff;
      padding: 10px 0;
      border-radius: 6px;
      font-weight: 600;
      font-size: 14px;
      margin-bottom: 10px;
      transition: background 0.2s;
    }
    .contact-btn-primary:hover { background: #0052a3; }
    .contact-phone-box {
      font-size: 13px;
      color: #334155;
      background: #ffffff;
      padding: 10px;
      border-radius: 6px;
      border: 1px dashed #cbd5e1;
      text-align: center;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
    }
    /* 下方详情面板 */
    .detail-tabs-section {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 12px;
      padding: 30px;
      text-align: left;
      margin-bottom: 0.9rem;
    }
     .tab-header { border-bottom: 2px solid #e2e8f0; margin-bottom: 25px; display: flex; gap: 30px; }
    .tab-item { font-size: 16px; font-weight: 600; color: #0066cc; border-bottom: 3px solid #0066cc; padding-bottom: 10px; margin-bottom: -2px; }
    .product-detail-main .section-title { font-size: 18px; font-weight: 700; color: #0b2545; margin: 25px 0 15px 0; border-left: 4px solid #0066cc; padding-left: 10px; }
    .section-title-trust { margin-bottom: 20px; }
    /* 参数表格 */
    .tech-table { width: 100%; border-collapse: collapse; margin-bottom: 25px; font-size: 14px; }
    .tech-table th, .tech-table td { border: 1px solid #e2e8f0; padding: 12px 16px; text-align: left; }
    .tech-table th { background-color: #f8fafc; color: #1e293b; font-weight: 600; width: 20%; }
    .tech-table td { color: #475569; }
    .table-head-bg { background-color: #f8fafc; }
    /* 应用描述通用段落与列表 */
    .section-desc-text { font-size: 14px; color: #475569; line-height: 1.8; }
    .app-bullet-list { font-size: 14px; color: #475569; margin: 10px 0 0 20px; line-height: 1.8; }
    .app-bullet-list li{
        list-style: disc;
    }
    /* EEAT 信任与质量保障模块类名抽离 */
    .trust-eeat-box {
      margin-top: 40px;
      padding-top: 30px;
      border-top: 2px dashed #e2e8f0;
    }
    .trust-cards-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 20px;
    }
    .trust-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-left: 4px solid #0066cc;
      padding: 20px;
      border-radius: 6px;
      box-shadow: 0 2px 4px rgba(0,0,0,0.02);
    }
    .icon-title-wrap {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.22rem;
      font-weight: 700;
      color: #0b2545;
      margin-bottom: 0.28rem;
    }
    .icon-title-wrap svg {
      width: 22px;
      height: 22px;
      flex-shrink: 0;
    }
    /* 统一的卡片描述段落类名 */
    .trust-card-desc {
      font-size: 0.14rem;
      color: #475569;
      line-height: 1.6;
    }
    .product-detail-main .section-title{
        text-align: left;
    }
    .products .container{
        width: 1440px;

    }
.products .content-section{
   width: 100%;
}
.product-detail-main .home-product-grid{
    margin-top: 0.4rem;
}