@keyframes slideInTitle {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInSubtitle {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

@keyframes slideIn2 {
    from { width: 0; }
    to { width: 50%; }
}

@keyframes slideIn {
    from { width: 0; }
    to { width: 50%; }
}

@keyframes slideInMobile {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes slideIn2Mobile {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ========================================
   CSS Reset
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
    font-size: 14px;
    color: #333;
    line-height: 1.6;
    background-color: #fff;
}

ul, ol {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
}

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

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

/* ========================================
   布局容器 - 主内容区统一样式
   ======================================== */
.main-container {
    max-width: 1600px;
    width: 96%;
    margin: 0 auto;
}

/* ========================================
   头部导航区
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.header .main-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

/* Logo */
.logo {
    flex-shrink: 0;
}

.logo img {
    height: 50px;
    width: auto;
}

/* ========================================
   汉堡菜单按钮
   ======================================== */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.menu-line {
    width: 24px;
    height: 2px;
    background-color: #333;
    transition: all 0.3s ease;
}

.menu-toggle.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active .menu-line:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* 移动端菜单遮罩 */
.menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.menu-overlay.active {
    display: block;
    opacity: 1;
}

/* 导航菜单 */
.nav {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    padding-right: 80px;
}

.nav-list {
    display: flex;
    gap: 60px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 10px 0;
    font-size: 16px;
    color: #000;
    font-weight: normal;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #eb6622;
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-item.active .nav-link {
    font-weight: bold;
}

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

/* 二级菜单 */
.submenu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #fff;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
    border-radius: 4px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 100;
    padding: 10px;
    border-top: 3px solid #eb6622;
    width: auto;
    min-width: 420px;
    overflow: visible;
}

.nav-item:hover .submenu {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   首页专用 - 非移动端二级菜单
   ============================================ */
@media screen and (min-width: 993px) {
    .page-home .submenu {
        min-width: auto;
        display: flex;
        flex-wrap: wrap;
        gap: 5px;
        padding: 8px 12px;
    }
    .page-home .submenu > li {
        flex: 0 0 auto;
    }
    .page-home .submenu-content {
        gap: 5px;
    }
    .page-home .submenu-items {
        width: auto;
        min-width: auto;
        min-height: auto;
        gap: 2px;
        padding: 0;
    }
    .page-home .submenu-items a {
        padding: 11px 12px;
        white-space: nowrap;
    }
}

.submenu-content {
    display: flex;
    align-items: center;
    flex-direction: row-reverse;
    gap: 10px;
}

.submenu-items {
    flex: 0 0 auto;
    width: 150px;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-height: 180px;
}

.submenu-items a {
    display: block;
    padding: 12px 20px;
    font-size: 14px;
    color: #555;
    transition: all 0.3s ease;
    background: #f8f9fa;
    border-radius: 6px;
    position: relative;
    overflow: hidden;
}

.submenu-items a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 3px;
    height: 100%;
    background: #eb6622;
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.submenu-items a:hover {
    background: linear-gradient(135deg, #eb6622 0%, #f06d3b 100%);
    color: #fff;
    padding-left: 28px;
    box-shadow: 0 4px 12px rgba(235, 102, 34, 0.3);
}

.submenu-items a:hover::before {
    transform: scaleY(1);
}

.submenu-image {
    flex: 0 0 auto;
    width: 240px;
    height: 100%;
    padding: 0;
}

.submenu-image img {
    width: 100%;
    height: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    object-position: left;
    display: block;
}

/* 头部右侧功能区 */
.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-shrink: 0;
}

/* 电话区域 */
.tel-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.tel-icon {
    width: 20px;
    height: 20px;
    background: url('../img/tel.png') no-repeat center center;
    background-size: contain;
    cursor: pointer;
    flex-shrink: 0;
}

.tel-number {
    font-size: 18px;
    color: #0061ae;
    font-weight: 500;
    white-space: nowrap;
    transition: all 0.4s ease;
    overflow: hidden;
    width: 150px;
}

.tel-area.collapsed .tel-number {
    width: 0;
    opacity: 0;
}

/* 搜索区域 */
.search-area {
    display: flex;
    align-items: center;
    gap: 10px;
}

.search-icon {
    width: 24px;
    height: 24px;
    background: url('../img/so.png') no-repeat center center;
    background-size: contain;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.search-icon:hover {
    transform: scale(1.1);
}

.search-box {
    overflow: hidden;
    transition: all 0.4s ease;
    width: 0;
    opacity: 0;
}

.search-box.active {
    width: 140px;
    opacity: 1;
}

.search-box {
    position: relative;
    height: 32px;
}

.search-box input {
    width: 100%;
    height: 100%;
    padding: 0 40px 0 15px;
    border: 1px solid #0061ae;
    border-radius: 16px;
    outline: none;
    font-size: 13px;
    transition: border-color 0.3s ease;
}

.search-box input:focus {
    border-color: #0061ae;
}

.search-box button {
    position: absolute;
    right: 2px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    background: none;
    border: none;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.search-box button::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 16px;
    height: 16px;
    background: url('../img/so.png') no-repeat center center;
    background-size: contain;
}

.search-box button:hover {
    opacity: 0.7;
}

/* 语言切换 */
.lang-switch {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    position: relative;
}

.lang-icon {
    width: 20px;
    height: 20px;
    background: url('../img/yy.png') no-repeat center center;
    background-size: contain;
}

.lang-text {
    font-size: 14px;
    color: #333;
    user-select: none;
}

.lang-arrow {
    font-size: 10px;
    color: #666;
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: #fff;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
    border-radius: 4px;
    min-width: 100px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 100;
    margin-top: 8px;
}

.lang-switch:hover .lang-dropdown {
    opacity: 1;
    visibility: visible;
}

.lang-dropdown li {
    padding: 8px 16px;
    font-size: 13px;
    color: #333;
    transition: all 0.3s ease;
}
.lang-dropdown li a {
    color: inherit;
    text-decoration: none;
    display: block;
}

.lang-dropdown li:hover {
    background: #f5f5f5;
    color: #eb6622;
}
.lang-dropdown li:hover a {
    color: inherit;
}

.lang-dropdown li.active {
    color: #eb6622;
    font-weight: bold;
}

/* ========================================
   主内容区域
   ======================================== */

/* ========================================
   轮播图区域
   ======================================== */
.banner-section {
    position: relative;
    margin-top: 80px;
    width: 100%;
    max-width: none;
}

.banner-wrapper {
    position: relative;
    width: 100%;
    background-size: 100% auto;
    background-position: center top;
    background-repeat: no-repeat;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: 100% auto;
    background-position: center top;
    background-repeat: no-repeat;
    display: none;
}

.banner-slide.active {
    display: block;
}

.banner-content {
    position: absolute;
    top: 33.33%;
    left: 10%;
    max-width: 100%;
}

/* 轮播浮动图片 */
.banner-float-imgs {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.float-img {
    position: absolute;
    bottom: 0;
    height: 100%;
    width: auto;
    opacity: 0;
    left: 0;
    transform: translateX(-100%);
}

.float-img-1 {
}

.float-img-2 {
}

.banner-slide.active .float-img-1 {
    animation: slideInFromLeftImg 0.8s ease forwards;
}

.banner-slide.active .float-img-2 {
    animation: slideInFromLeftImg 0.8s ease 0.6s forwards;
}

@keyframes slideInFromLeftImg {
    0% {
        opacity: 0;
        transform: translateX(-100%);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

.banner-title {
    font-size: 2.8rem;
    color: #fff;
    font-weight: bold;
    margin-bottom: 10px;
    transform: translateX(-50px);
    opacity: 0;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.banner-slide.active .banner-title {
    animation: slideInTitle 0.8s ease 0.8s forwards;
}

.banner-subtitle {
    font-size: 1.5rem;
    color: #fff;
    transform: translateX(-50px);
    opacity: 0;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

.banner-slide.active .banner-subtitle {
    animation: slideInSubtitle 0.8s ease 1.0s forwards;
}

/* 轮播指示器 */
.banner-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

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

.indicator.active {
    background: #0061ae;
    transform: scale(1.2);
}

.indicator:hover {
    background: rgba(0, 97, 174, 0.8);
}

/* ========================================
   公司简介区域
   ======================================== */
.about-section {
    position: relative;
    width: 100%;
    background-image: url(../img/jjbj.jpg);
    background-position: center bottom;
    background-repeat: no-repeat;
    background-size: cover;
    padding-bottom: 70px;
}

.about-wrapper {
    padding: 60px 0;
}

.about-content {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.about-text {
    flex: 1;
    background: rgba(255,255,255,0.9);
    padding: 0 30px 30px 30px;
    border-radius: 8px;
}

.about-title {
    font-size: 1.7rem;
    color: #eb6622;
    margin-bottom: 5px;
    font-weight: bold;
}

.about-subtitle {
    font-size: 1.1rem;
    color: #0061ae;
    margin-bottom: 8px;
}

.about-desc {
    font-size: 1rem;
    line-height: 1.8;
    color: #000;
    margin-top: 50px;
}

.about-video {
    flex: 1;
    display: flex;
    align-items: stretch;
}

.about-video video {
    width: 100%;
    height: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

/* 公司简介底部区域 */
.about-bottom {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.about-images {
    flex: 0.6;
    display: flex;
    gap: 20px;
}

.about-img-col {
    flex: 1;
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
    position: relative;
}

.about-img-col::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
    z-index: 1;
}

.about-img-col:hover::before {
    left: 100%;
}

.about-img-col img {
    width: 100%;
    object-fit: contain;
    border-radius: 8px;
    border: 2px solid #eb6622;
    transition: all 0.3s ease;
}

.about-img-col:hover img {
    border-color: #ff8533;
    filter: brightness(1.1);
}

.about-cta {
    flex: 0.6;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    border-radius: 8px;
}

.btn-capsule {
    display: inline-block;
    padding: 12px 30px;
    background-color: #eb6622;
    color: #fff;
    border-radius: 50px;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-capsule:hover {
    background-color: #d55a1c;
    transform: scale(1.05);
}

/* ========================================
   数据统计区域
   ======================================== */
.stats-section {
    background: linear-gradient(to right, #e64305, #e58807);
    padding: 20px;
    border-radius: 12px;
}

.stats-grid {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    max-width: 1560px;
    margin: 0 auto;
    gap: 20px;
}

.stat-item {
    text-align: center;
    color: #fff;
    padding: 10px 20px;
    flex: 1;
    min-width: 150px;
    position: relative;
}

.stat-item:not(:first-child)::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 2px;
    height: 60%;
    background: linear-gradient(to bottom, rgba(255,255,255,0.2), rgba(255,255,255,0.8), rgba(255,255,255,0.2));
}

.stat-number {
    font-size: 48px;
    font-weight: bold;
    line-height: 1.2;
}

.stat-number .unit {
    font-size: 24px;
    font-weight: normal;
}

.stat-label {
    font-size: 20px;
    margin-top: 10px;
    opacity: 0.9;
}

/* ========================================
   产品中心区域
   ======================================== */
.products-section {
    position: relative;
    width: 100%;
    background-image: url(../img/cpbj.jpg);
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
    padding: 60px 0 80px;
}

.products-section .section-title {
    color: #000;
    font-size: 36px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 20px;
}

.products-section .title-line {
    position: relative;
    width: 100%;
    height: 1px;
    background: rgba(255, 255, 255, 0.5);
    margin-bottom: 28px;
}

.products-section .title-line::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 5px;
    background: #fff;
}

.product-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
    margin-top: 30px;
    margin-bottom: 38px;
}

.product-tab {
    display: block;
    text-align: center;
    text-decoration: none;
    background: transparent;
    color: #000;
    font-size: 17px;
    padding: 10px 10px 10px;
    cursor: pointer;
    position: relative;
    transition: color 0.2s ease;
}

.product-tab::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 0;
    height: 2px;
    background: #0061ae;
    transform: translateX(-50%);
    transition: width 0.2s ease;
}

.product-tab:hover,
.product-tab.active {
    color: #0061ae;
}

.product-tab:hover::after,
.product-tab.active::after {
    width: 100%;
}

.product-panels {
    width: 100%;
}

.product-panel {
    display: none;
}

.product-panel.active {
    display: block;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 40px;
}

.product-card {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: #333;
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
}

.product-card img {
    display: block;
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
}

.product-card-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 24px 16px 16px;
}

.product-card-title {
    display: block;
    text-align: center;
    font-size: 18px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 12px;
}

.product-card-link {
    display: block;
    width: 120px;
    height: 32px;
    line-height: 32px;
    margin: 0;
    padding: 0;
    border: 1px solid #0061ae;
    border-radius: 999px;
    background: #fff;
    color: #0061ae;
    font-size: 14px;
    font-weight: 400;
    text-align: center;
    transition: all 0.3s ease;
}

.product-card:hover .product-card-link {
    background: #eb6622;
    color: #fff;
    border-color: #eb6622;
}

/* ========================================
   生产实力·荣誉资质区域
   ======================================== */
.strength-section {
    position: relative;
    width: 100%;
    background-color: #fff;
    background-image: url(../img/sbbj.jpg);
    background-position: center bottom;
    background-size: auto;
    background-repeat: no-repeat;
    padding: 60px 0 60px;
}

.strength-section > .main-container {
    width: 1600px;
    max-width: 96%;
    margin: 0 auto;
}

.strength-header {
    text-align: center;
    margin-bottom: 40px;
}

.strength-header .section-title {
    color: #333;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 20px;
}

.strength-header .title-line {
    position: relative;
    width: 100%;
    height: 1px;
    background: rgba(0, 0, 0, 0.5);
    margin-bottom: 28px;
}

.strength-header .title-line::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 5px;
    background: #eb6622;
}

.strength-tabs {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 50px;
}

.strength-tab {
    flex: 1;
    width: 50%;
    max-width: 50%;
    background: #fff;
    border: 1px solid #0061ae;
    border-radius: 12px;
    padding: 15px 0px;
    text-align: center;
    color: #0061ae;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 17px;
    font-weight: bold;
}

.strength-tab:hover,
.strength-tab.active {
    background: #eb6622;
    border-color: #eb6622;
    color: #fff;
}

.strength-content {
    display: none;
    border: none;
    border-radius: 0;
    padding: 0;
    text-align: center;
    color: #333;
    max-width: 1600px;
    margin: 0 auto;
}

.strength-content.active {
    display: block;
    padding: 0;
}

.strength-content p {
    font-size: 16px;
    line-height: 1.8;
    margin: 0;
}

.strength-scroll {
    overflow: hidden;
    width: 100%;
    margin: 0;
    padding: 10px 0;
    border: none;
}

.scroll-wrapper {
    display: flex;
    gap: 40px;
    animation: scroll 50s linear infinite;
    width: max-content;
}

.scroll-wrapper img {
    height: 200px;
    width: auto;
    border-radius: 8px;
    flex-shrink: 0;
}

.scroll-card {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
    flex-shrink: 0;
    display: block;
    text-decoration: none;
    color: inherit;
    width: auto;
    height: auto;
}

.scroll-card img {
    height: 300px;
    width: 100%;
    max-width: 100%;
    object-fit: contain;
    border-radius: 4px;
}

.card-title {
    display: block;
    font-size: 14px;
    color: #333;
    padding: 8px 0;
    text-align: center;
    word-wrap: break-word;
    word-break: break-all;
    max-width: 100%;
}

/* ========================================
   优势区域
   ======================================== */
.advantages-section {
    padding: 0;
    background-color: #fff;
}

/* 新闻动态区域
   ======================================== */
.news-section {
    position: relative;
    width: 100%;
    background-color: #fff;
    padding: 60px 0;
}

.news-section > .main-container {
    width: 1600px;
    max-width: 96%;
    margin: 0 auto;
}

.news-header {
    text-align: center;
    margin-bottom: 40px;
}

.news-header .section-title {
    color: #333;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 20px;
}

.news-header .title-line {
    position: relative;
    width: 100%;
    height: 1px;
    background: rgba(0, 0, 0, 0.5);
    margin-bottom: 28px;
}

.news-header .title-line::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 5px;
    background: #eb6622;
}

.news-wrapper {
    display: flex;
    flex-direction: column;
    gap: 24px;
    width: 100%;
    box-sizing: border-box;
}

.news-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

.news-main {
    min-width: 0;
}

.news-side {
    min-width: 0;
}

.news-card {
    position: relative;
    height: 100%;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

.news-card-link:hover {
    text-decoration: none;
}

.news-card-link:hover .news-card {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.news-img {
    width: 100%;
    height: 100%;
    min-height: 180px;
}

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

.news-card-link:hover .news-img img {
    transform: scale(1.1);
}

.news-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: rgba(235, 102, 34, 0.6);
    color: #fff;
}

.news-date {
    font-size: 14px;
    display: block;
    margin-bottom: 8px;
}

.news-title {
    font-size: 18px;
    font-weight: bold;
    margin: 0;
    line-height: 1.4;
}

.news-item {
    height: 100%;
    padding: 32px;
    background: #eb6622;
    border-radius: 8px;
    color: #fff;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-card-link:hover .news-item {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(235, 102, 34, 0.4);
}

.news-item-date {
    font-size: 14px;
    margin-bottom: 16px;
}

.news-item-title {
    font-size: 18px;
    font-weight: bold;
    margin: 0 0 20px;
    line-height: 1.4;
}

.news-item-desc {
    font-size: 14px;
    line-height: 1.6;
    margin: 0 0 16px;
    opacity: 0.9;
}

.news-link {
    display: inline-block;
    padding: 8px 20px;
    background: #fff;
    color: #eb6622;
    border-radius: 20px;
    font-size: 14px;
    text-decoration: none;
}

@media screen and (max-width: 768px) {
    .news-grid {
        grid-template-columns: 1fr;
    }

    .news-main,
    .news-side {
        max-width: 100%;
    }

    .news-img {
        min-height: 200px;
    }
}

.news-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    width: 100%;
    box-sizing: border-box;
}

.news-list-item {
    padding: 24px;
    background: #ececec;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    height: 180px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-card-link:hover .news-list-item {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.news-list-date {
    font-size: 14px;
    color: #666;
    margin-bottom: 12px;
}

.news-list-title {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    margin: 0 0 16px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-list-item .news-link {
    background: #eb6622;
    color: #fff;
}

@media screen and (max-width: 768px) {
    .news-list {
        grid-template-columns: 1fr;
    }
}

.advantages-slider {
    position: relative;
    width: 100%;
}

.advantage-slide {
    position: relative;
    width: 100%;
    height: 700px;
    overflow: hidden;
    display: none;
}

.advantage-slide.active {
    display: block;
}

.advantage-bg {
    width: 100%;
    height: 100%;
}

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

.advantage-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: auto;
    bottom: 0;
    width: 0;
    background-image: url('../img/ys1.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
}

.advantage-overlay.animate {
    animation: slideIn 0.8s ease forwards;
}

.advantage-overlay2 {
    position: absolute;
    top: 0;
    left: 0;
    right: auto;
    bottom: 0;
    width: 0;
    background-image: url('../img/ys2.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
}

.advantage-overlay2.animate {
    animation: slideIn2 0.8s ease forwards;
    animation-delay: 0.8s;
}

.advantage-content {
    display: flex;
    flex-direction: column;
    padding: 40px 50px;
    color: #fff;
    opacity: 0;
    transform: translateX(-20px);
    overflow-wrap: break-word;
    position: relative;
    z-index: 3;
}

.advantage-arrows {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.advantage-content.animate {
    animation: fadeIn 0.5s ease 1.6s forwards;
}

.advantage-title {
    font-size: 26px;
    font-weight: bold;
    margin-bottom: 20px;
}

.advantage-desc {
    font-size: 16px;
    line-height: 1.8;
    opacity: 0.9;
}

.advantage-num {
    display: block;
    font-size: 20px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.advantage-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.7);
    background: transparent;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.advantage-arrow:hover {
    border-color: #fff;
    background: rgba(255,255,255,0.15);
}

.advantage-arrow:active {
    transform: scale(0.95);
}

/* ========================================
   底部区域
   ======================================== */
.footer {
    background: #1a1a1a;
    color: #ccc;
    padding: 40px 0 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-section {
    flex: 1;
}

.footer-section h3 {
    color: #333;
    font-size: 22px;
    margin-bottom: 15px;
}

.footer-section p,
.footer-section a {
    font-size: 14px;
    line-height: 2;
    color: #999;
}

.footer-section a:hover {
    color: #eb6622;
}

.footer-bottom {
    text-align: center;
    padding-top: 0;
    margin-top: 0;
    border-top: 1px solid #333;
    font-size: 13px;
    color: #666;
}

/* ========================================
   响应式设计 - 统一收尾
   ======================================== */

/* 1600px */
@media screen and (min-width: 1600px) {
    .advantage-content {
        transform: translateX(120px);
        padding: 40px 50px 40px 170px;
    }
}

/* 1200px */
@media screen and (max-width: 1200px) {
    .nav-list {
        gap: 25px;
    }

    .nav-link {
        font-size: 15px;
    }
}

/* 992px */
@media screen and (max-width: 992px) {
    .header .main-container {
        flex-wrap: wrap;
        height: auto;
        padding: 10px 0;
        position: relative;
    }

    .logo img {
        height: 40px;
    }

    /* 显示汉堡菜单按钮 */
    .menu-toggle {
        display: flex;
    }

    /* 隐藏原有导航，改为滑出菜单 */
    .nav {
        display: flex;
        position: fixed;
        top: 0;
        left: 0;
        right: auto;
        width: 100%;
        height: 100vh;
        background: #fff;
        flex-direction: column;
        justify-content: flex-start;
        padding: 80px 20px 20px;
        box-shadow: none;
        transition: transform 0.3s ease;
        z-index: 999;
        overflow-y: auto;
    }

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

    .nav:not(.active) {
        transform: translateX(-100%);
    }

    .nav-list {
        flex-direction: column;
        gap: 0;
    }

    .nav-item {
        border-bottom: 1px solid #eee;
    }

    .nav-link {
        padding: 15px 0;
        font-size: 15px;
    }

    .nav-link::after {
        display: none;
    }

    /* 二级菜单箭头 */
    .has-submenu {
        position: relative;
    }

    .has-submenu .nav-link-wrapper {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .submenu-arrow {
        width: 0;
        height: 0;
        border-left: 5px solid transparent;
        border-right: 5px solid transparent;
        border-top: 5px solid #666;
        transition: transform 0.3s ease;
    }

    .has-submenu.active .submenu-arrow {
        transform: rotate(180deg);
    }

    .nav-link:hover,
    .nav-item.active .nav-link {
        font-weight: bold;
        color: #0061ae;
    }

    /* 二级菜单默认隐藏，点击展开 */
    .submenu {
        position: static;
        transform: none;
        box-shadow: none;
        padding: 0;
        margin: 0;
        opacity: 1;
        visibility: visible;
        display: none;
        min-width: auto;
    }

    .has-submenu.active .submenu {
        display: block;
    }

    .submenu {
        padding-left: 0;
        margin-left: 0;
    }

    .submenu > li {
        padding: 0;
        margin: 0;
        list-style: none;
    }

    .submenu li a {
        padding: 8px 0;
        font-size: 14px;
        background: transparent;
        border-radius: 0;
        white-space: nowrap;
        display: block;
        text-align: left;
    }

    .submenu li a:hover {
        background: transparent;
        color: #eb6622;
        box-shadow: none;
    }

    .submenu li a::before {
        display: none;
    }

    .submenu-content {
        flex-direction: column;
    }

    .submenu-items {
        display: flex;
        flex-direction: column;
        gap: 0;
        flex: 0 0 auto;
        align-items: flex-start;
        width: auto;
        min-height: auto;
        padding: 0;
    }

    .submenu-items a {
        display: block;
        padding: 8px 0;
        white-space: nowrap;
        text-align: left;
    }

    .submenu-image {
        display: none;
    }

    .header-right {
        gap: 15px;
        margin-left: auto;
    }

    .tel-number {
        font-size: 16px;
        width: 110px;
    }

    .search-box.active {
        width: 110px;
    }

    .search-box {
        height: 28px;
    }

    .search-box input {
        font-size: 12px;
        padding: 0 35px 0 12px;
        border-color: #0061ae;
    }

    .search-box button {
        width: 24px;
        height: 24px;
    }

    .search-box button::after {
        width: 14px;
        height: 14px;
    }

    /* 显示移动端遮罩 */
    .menu-overlay {
        display: none;
    }

    .product-tabs {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 30px;
    }

    .product-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .about-content {
        flex-direction: column;
    }

    .about-text {
        width: 100%;
        padding: 0 0px 0px 0px;
    }

    .about-video {
        max-width: 100%;
        width: 100%;
    }

    .about-title {
        font-size: 1.5rem;
    }

    .about-desc {
        font-size: 0.9rem;
        margin-top: 20px;
    }

    .about-bottom {
        flex-direction: column;
    }

    .about-images {
        gap: 10px;
    }

    .about-cta {
        flex: 1;
        width: 100%;
        justify-content: center;
    }
}

/* 768px */
@media screen and (max-width: 768px) {
    .banner-section {
        margin-top: 60px;
        background: #0061ae;
    }

    .advantage-slide {
        height: 600px;
    }

    .header .main-container {
        padding: 10px 15px;
        height: 60px;
    }

    /* 隐藏电话和搜索 */
    .tel-area {
        display: none;
    }

    .search-area {
        display: none;
    }

    .header-right {
        gap: 12px;
    }

    .lang-text {
        font-size: 13px;
    }

    .banner-title {
        font-size: 1.4rem;
    }

    .banner-subtitle {
        font-size: 1rem;
    }

    .stats-grid {
        gap: 10px;
    }

    .stat-item {
        min-width: calc(50% - 10px);
    }

    .stat-item:nth-child(3)::before {
        display: none;
    }

    .stat-number {
        font-size: 32px;
    }

    .stat-number .unit {
        font-size: 18px;
    }

    .stat-label {
        font-size: 14px;
    }

    .strength-tabs {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .strength-tab {
        width: 100%;
        font-size: 15px;
        max-width: none;
    }

    .strength-header .section-title {
        font-size: 24px;
    }

    .advantage-overlay.animate {
        animation: slideInMobile 0.8s ease forwards;
    }

    .advantage-overlay2.animate {
        animation: slideIn2Mobile 0.8s ease forwards;
        animation-delay: 0.8s;
    }

}

/* 576px */
@media screen and (max-width: 576px) {
    .strength-section {
        padding: 40px 0 60px;
    }

    .strength-header .section-title {
        font-size: 24px;
    }

    .news-header .section-title {
        font-size: 24px;
    }

    .strength-tab {
        padding: 10px 0px;
    }

    .strength-card p {
        font-size: 14px;
    }

    .header .main-container {
        padding: 8px 10px;
    }

    .logo img {
        height: 35px;
    }

    .tel-number {
        font-size: 13px;
        width: 60px;
    }

    .search-box.active {
        width: 60px;
    }

    .search-box {
        height: 26px;
    }

    .search-box input {
        font-size: 12px;
        padding: 0 32px 0 10px;
        border-color: #0061ae;
    }

    .search-box button {
        width: 22px;
        height: 22px;
    }

    .search-box button::after {
        width: 12px;
        height: 12px;
    }

    .lang-icon {
        width: 16px;
        height: 16px;
    }

    .lang-text {
        display: none;
    }

    .product-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 4px;
    }

    .product-card {
        padding: 5px;
    }

    .product-card-title {
        margin-bottom: 6px;
    }

    .product-tab {
        font-size: 16px;
        padding: 4px 8px 4px;
    }

    .products-section .section-title {
        font-size: 24px;
    }
}

/* 480px */
@media screen and (max-width: 480px) {
    .banner-title {
        font-size: 1.1rem;
    }

    .banner-subtitle {
        font-size: 0.8rem;
    }
}

/* 页脚 */
.footer {
    background-image: url('../img/fo.jpg');
    background-size: cover;
    background-position: center;
    border-top: 5px solid #eb6622;
}

.footer-main {
    padding: 30px 0;
}

.footer-content {
    max-width: 1600px;
    width: 96%;
    margin: 0 auto;
    display: flex;
    gap: 40px;
}

.footer-left {
    flex: 0 0 66%;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-right {
    flex: 0 0 34%;
    text-align: left;
}

.footer-col-title {
    color: #333;
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

.footer-links a {
    color: #000;
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #eb6622;
}

.footer-logo img {
    max-width: 150px;
    margin-bottom: 20px;
}

.footer-company {
    color: #eb6622;
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 15px;
}

.footer-contact {
    color: #000;
    font-size: 16px;
    margin-bottom: 8px;
}

.footer-contact .contact-icon {
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-right: 8px;
    vertical-align: middle;
}

.footer-social {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.social-item {
    position: relative;
    display: inline-block;
}

.social-qrcode {
    display: none;
    position: absolute;
    left: 50%;
    bottom: calc(100% + 12px);
    transform: translateX(-50%);
    background: #fff;
    padding: 10px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 100;
}

.social-qrcode img {
    width: 120px !important;
    max-width: 120px !important;
    height: auto;
    border: none;
    border-radius: 4px;
}

.social-qrcode::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -8px;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: #fff;
}

.social-icon {
    width: 44px;
    height: 44px;
    border: 1px dashed #eb6622;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    background: transparent;
    cursor: pointer;
    position: relative;
    text-decoration: none;
}

.social-icon img {
    width: 26px;
    height: 26px;
    object-fit: contain;
}

.social-icon:hover {
    border-color: #eb6622;
    transform: scale(1.1);
}

.footer-bottom {
    background: rgba(0, 0, 0, 0.1);
    padding: 15px 0;
    text-align: center;
    width: 100%;
    margin: 0;
    border-top: none;
}

.footer-bottom p {
    color: #000;
    font-size: 14px;
    margin: 0;
}

.footer-bottom a {
    color: #000;
    text-decoration: none;
}

.footer-bottom a:hover {
    color: #eb6622;
}

/* 浮动公司图标 */
.float-companies {
    position: fixed;
    right: 20px;
    bottom: 80px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
}

.float-item {
    display: flex;
    align-items: center;
    text-decoration: none;
    position: relative;
}

.float-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
    transition: transform 0.3s ease;
}

.float-icon img {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: 50%;
}

.float-label {
    position: absolute;
    right: 30px;
    height: 40px;
    background: #eb6622;
    color: #fff;
    font-size: 13px;
    padding: 0 50px 0 16px;
    border-radius: 10px;
    white-space: nowrap;
    display: flex;
    align-items: center;
    clip-path: inset(0 0 0 100%);
    transition: clip-path 0.4s ease;
}

.float-item:hover .float-label {
    clip-path: inset(0 0 0 0);
}

.float-item:hover .float-icon {
    transform: translateX(-5px);
}

/* 移动端页脚 */
@media screen and (max-width: 768px) {
    .footer-content {
        flex-direction: column;
    }

    .footer-left {
        display: none;
    }

    .footer-right {
        flex: none;
        width: 100%;
        margin-left: 20px;
    }
}

/* 公司简介页面专属样式 */
.page-banner {
    width: 100%;
    height: 350px;
    background: url(../img/nr.jpg) center center / cover no-repeat;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.2) 100%);
}

.page-banner-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    padding-bottom: 50px;
    height: 100%;
}

.page-banner .banner-title {
    font-size: 2rem;
    transform: none;
    opacity: 1;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.page-banner .banner-subtitle {
    font-size: 1rem;
    transform: none;
    opacity: 0.9;
    margin-bottom: 0;
}

.page-banner-content h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 12px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.page-banner-content p {
    font-size: 18px;
    opacity: 0.9;
}

.page-breadcrumb {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 15px;
    font-size: 14px;
}

.page-breadcrumb a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s;
}

.page-breadcrumb a:hover {
    color: #eb6622;
}

.page-breadcrumb span {
    opacity: 0.7;
}

.page-section {
    padding: 40px 0;
}

.page-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 2%;
}

.page-layout {
    display: flex;
    gap: 40px;
}

.page-sidebar {
    width: 240px;
    flex-shrink: 0;
    background: #fff;
    border-radius: 12px;
    padding: 30px 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    height: fit-content;
}

.sidebar-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.toggle-arrow {
    display: none;
    font-size: 12px;
    transition: transform 0.3s;
}

.page-sidebar h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #eb6622;
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-menu li {
    margin-bottom: 5px;
}

.sidebar-menu li a {
    display: block;
    padding: 12px 15px;
    color: #666;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
}

.sidebar-menu li a:hover {
    background: #fff5f0;
    color: #eb6622;
}

.sidebar-menu li.active a {
    background: #eb6622;
    color: #fff;
}

.page-main {
    flex: 1;
    background: #fff;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.page-main img,
.page-about-content img {
    display: block;
    margin: 0 auto;
}

.contact-main {
    width: 100%;
    max-width: 100%;
    flex: none;
}

.contact-title {
    text-align: center;
    font-size: 32px;
    color: #1a1a1a;
    margin-bottom: 12px;
    font-weight: 600;
}

.contact-desc {
    text-align: center;
    color: #666;
    font-size: 16px;
    margin-bottom: 40px;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.contact-card {
    background: linear-gradient(135deg, #fafbfc 0%, #f2f5f8 100%);
    border: 1px solid #e8ecf0;
    border-radius: 16px;
    padding: 32px;
    display: flex;
    align-items: center;
    gap: 24px;
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.08);
    border-color: #eb6622;
}

.contact-card-icon {
    width: 64px;
    height: 64px;
    min-width: 64px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-card-icon img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.contact-card-content h3 {
    font-size: 16px;
    color: #333;
    margin-bottom: 8px;
    font-weight: 600;
}

.contact-value {
    font-size: 22px;
    color: #1a1a1a;
    font-weight: 600;
    margin-bottom: 4px;
    letter-spacing: 0.5px;
}

.contact-note {
    font-size: 13px;
    color: #999;
    margin: 0;
}

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

.pro-list-content h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 25px;
    font-weight: 600;
}

.pro-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.pro-card {
    display: block;
    text-decoration: none;
    color: #333;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pro-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.1);
}

.pro-card-img {
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

.pro-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.pro-card-title {
    text-align: center;
    font-size: 16px;
    font-weight: 600;
    color: #333;
    padding: 16px;
    background: #fff;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid #eee;
}

.pagination a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    color: #666;
    text-decoration: none;
    transition: all 0.3s ease;
}

.pagination a:hover,
.pagination a.active {
    background: #eb6622;
    border-color: #eb6622;
    color: #fff;
}

.pagination a.disabled,
.pagination a.prev {
    color: #ccc;
    cursor: not-allowed;
}

.pro-detail-content {
}

.pro-detail-header {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
}

.pro-detail-img {
    width: 500px;
    min-width: 500px;
    aspect-ratio: 1 / 1;
    border-radius: 12px;
    overflow: hidden;
}

.pro-detail-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.pro-detail-info {
    flex: 1;
}

.pro-detail-info h2 {
    font-size: 26px;
    color: #333;
    margin-bottom: 16px;
    font-weight: 600;
}

.pro-detail-desc {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.pro-detail-params {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.param-item {
    display: flex;
    gap: 12px;
    padding: 12px 16px;
    background: #f8f9fa;
    border-radius: 8px;
}

.param-label {
    font-size: 13px;
    color: #999;
    min-width: 70px;
}

.param-value {
    font-size: 14px;
    color: #333;
    font-weight: 500;
}

.pro-detail-actions {
    display: flex;
    gap: 12px;
}

.btn-consult {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 28px;
    background: #eb6622;
    color: #fff;
    border-radius: 6px;
    font-size: 15px;
    text-decoration: none;
    transition: background 0.3s ease;
}

.btn-consult:hover {
    background: #d55a1a;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 28px;
    background: #fff;
    color: #666;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 15px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-back:hover {
    border-color: #eb6622;
    color: #eb6622;
}

.pro-detail-body {
    padding-top: 30px;
    border-top: 1px solid #eee;
}

.pro-detail-body img {
    display: block;
    max-width: 100%;
    margin: 15px 0;
}

.pro-detail-body h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 16px;
    margin-top: 24px;
    font-weight: 600;
}

.pro-detail-body h3:first-child {
    margin-top: 0;
}

.pro-detail-body p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

.pro-detail-body ul {
    padding-left: 20px;
    margin-bottom: 15px;
}

.pro-detail-body li {
    font-size: 15px;
    color: #666;
    line-height: 2;
}

@media (max-width: 1024px) {
    .pro-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .pro-detail-header {
        flex-direction: column;
    }
    .pro-detail-img {
        width: 100%;
        min-width: unset;
    }
}

@media (max-width: 768px) {
    .pro-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .pro-detail-params {
        grid-template-columns: 1fr;
    }
    .pro-detail-actions {
        flex-direction: column;
    }
}

.page-nav-tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 30px;
    border-bottom: 2px solid #eee;
    padding-bottom: 15px;
}

.page-nav-tabs .tab-item {
    padding: 10px 20px;
    color: #666;
    text-decoration: none;
    font-size: 16px;
    border-radius: 6px;
    transition: all 0.3s;
}

.page-nav-tabs .tab-item:hover,
.page-nav-tabs .tab-item.active {
    color: #fff;
    background: #eb6622;
}

.about-content h2 {
    font-size: 28px;
}

.about-content p {
    font-size: 16px;
    line-height: 1.8;
}

.page-about-content h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 25px;
}

.page-about-content p {
    font-size: 16px;
    line-height: 1.8;
    color: #333;
    margin-bottom: 15px;
}

@media screen and (max-width: 768px) {
    .page-banner {
        height: 250px;
    }

    .page-banner-content h1 {
        font-size: 32px;
    }

    .page-banner .banner-title {
        font-size: 1.5rem;
    }

    .page-layout {
        flex-direction: column;
    }

    .page-sidebar {
        width: 100%;
    }

    .page-sidebar .sidebar-menu {
        display: none;
    }

    .page-sidebar .toggle-arrow {
        transform: rotate(-90deg);
        display: block;
    }

    .page-sidebar.collapsed .sidebar-menu {
        display: none;
    }

    .page-sidebar:not(.collapsed) .sidebar-menu {
        display: block;
    }

    .page-sidebar:not(.collapsed) .toggle-arrow {
        transform: rotate(0deg);
    }

    .sidebar-toggle {
        display: flex;
    }

    .page-main {
        padding: 25px;
    }

    .float-companies {
        display: none;
    }
}

/* ========================================
   文章列表页样式
   ======================================== */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 30px 0;
}
.article-item {
    display: flex;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    transition: all 0.3s;
}
.article-item:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
}
.article-item-img {
    width: 280px;
    height: 180px;
    flex-shrink: 0;
}
.article-item-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}
.article-item:hover .article-item-img img {
    transform: scale(1.05);
}
.article-item-content {
    flex: 1;
    padding: 20px 25px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.article-item-date {
    font-size: 13px;
    color: #999;
    margin-bottom: 8px;
}
.article-item-title {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
    line-height: 1.4;
}
.article-item-title a {
    color: inherit;
    text-decoration: none;
}
.article-item-title a:hover {
    color: #0066cc;
}
.article-item-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.article-item-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
}
.article-item-tag {
    font-size: 12px;
    color: #fff;
    background: #0066cc;
    padding: 4px 10px;
    border-radius: 3px;
}
.article-item-more {
    font-size: 13px;
    color: #0066cc;
    text-decoration: none;
}
.article-item-more:hover {
    text-decoration: underline;
}

/* ========================================
   文章详情页样式
   ======================================== */
.article-detail {
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
.article-detail-header {
    text-align: center;
    padding-bottom: 30px;
    border-bottom: 1px solid #eee;
    margin-bottom: 30px;
}
.article-detail-title {
    font-size: 28px;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.4;
}
.article-detail-meta {
    font-size: 14px;
    color: #999;
}
.article-detail-meta span {
    margin: 0 15px;
}
.article-detail-tag {
    color: #fff;
    background: #0066cc;
    padding: 4px 12px;
    border-radius: 3px;
    margin-right: 15px;
}
.article-detail-cover {
    margin-bottom: 30px;
}
.article-detail-cover img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 8px;
}
.article-detail-content {
    font-size: 16px;
    color: #333;
    line-height: 1.8;
}
.article-detail-content p {
    margin-bottom: 20px;
}
.article-detail-content h3 {
    font-size: 20px;
    color: #333;
    margin: 30px 0 15px;
}
.article-detail-content ul, .article-detail-content ol {
    margin: 20px 0;
    padding-left: 30px;
}
.article-detail-content li {
    margin-bottom: 10px;
}
.article-detail-nav {
    display: flex;
    flex-direction: column;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid #eee;
}
.article-detail-nav a {
    color: #0066cc;
    text-decoration: none;
    font-size: 14px;
    padding: 10px 0;
}
.article-detail-nav a:hover {
    text-decoration: underline;
}
.article-detail-nav .prev::before {
    content: "上一篇：";
    color: #999;
}
.article-detail-nav .next::before {
    content: "下一篇：";
    color: #999;
}

/* 响应式 - 文章列表 */
@media (max-width: 768px) {
    .article-item { flex-direction: column; }
    .article-item-img { width: 100%; height: 200px; }
}

/* 响应式 - 文章详情 */
@media (max-width: 768px) {
    .article-detail {
        padding: 20px;
    }
    .article-detail-title {
        font-size: 20px;
    }
    .article-detail-cover img {
        height: 200px;
    }
}