/* 全局样式 - 复刻ITT官网工业风 */


html, body {
  overflow-anchor: none !important;
  scroll-behavior: auto !important;
}

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

:root {
    --itt-primary: #0066cc;
    --itt-dark: #1a1a1a;
    --itt-gray: #333333;
    --itt-light-gray: #f5f5f5;
    --itt-white: #ffffff;
    --itt-overlay: rgba(0, 0, 0, 0.6);
}

body {
    font-family: 'Montserrat', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--itt-gray);
    line-height: 1.6;
    background-color: var(--itt-white);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

.itt-container {
    width: 90%;
    max-width: 1280px;
    margin: 0 auto;
}

.itt-btn-primary {
    display: inline-block;
    padding: 14px 32px;
    background-color: var(--itt-primary);
    color: var(--itt-white);
    font-weight: 500;
    border-radius: 0;
    transition: background-color 0.3s ease;
}

.itt-btn-primary:hover {
    background-color: #0052a3;
}

/* 头部导航 - 白色背景 */
.itt-header {

    position: sticky;
    top: 0;
    background-color: #ffffff !important;
    color: #333 !important;
    z-index: 999;
    padding: 16px 0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    overflow: visible !important; /* 关键：允许下拉菜单超出导航栏 */
}

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

.itt-logo img {
    height: 65px;
    filter: none !important;
}

/* 导航列表基础样式 */
.itt-nav-list {
    display: flex;
    gap: 36px;
    align-items: center;
}

/* 只给有下拉菜单的li设置position: relative */
.itt-nav-list li.dropdown-item {
    position: relative;
    display: flex;
    align-items: center;
    /* padding: 12px 0; 👈 加这一行，扩大 hover 区域 */
    /* padding-bottom: 10px !important; 只往下扩大，不往上移动 */
}

/* 导航链接样式 */
.itt-nav-list li a {
    color: #333 !important;
    font-size: 15px !important;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
}

.itt-nav-list li a:hover {
    color: var(--itt-primary);
}

/* ====================================== */
/* 下拉菜单 + 向下尖角 + 橘色顶线 终极修复 */
/* ====================================== */
/* 向下尖角：用内联样式+最高优先级 */

.dropdown-link {
    display: inline-flex !important;
    align-items: center !important;
    gap: 6px !important;
}


/* 下拉箭头样式 - 纯CSS实现 */
/* .dropdown-link::after {
    content: "▼"; 
    display: inline-block;
    margin-left: 6px;
    font-size: 12px;
    transition: transform 0.3s ease;
} */

/* hover 时箭头旋转 */
/* .dropdown-item:hover .dropdown-link::after {
    transform: rotate(180deg);
} */


.dropdown-arrow {
    color: #333 !important;
    display: inline-block !important;
    margin-left: 6px !important;
    font-size: 12px !important;
    /* color: inherit !important; */
    transition: transform 0.3s ease !important;
}

.itt-nav-list li:hover .dropdown-arrow {
    transform: rotate(180deg) !important;
}

/* 下拉菜单：修正偏移 + 紧贴导航栏 */
.itt-nav-list li.dropdown-item .submenu {
     display: none;
    position: absolute;
    top:  calc(100% + 38px) !important; /* 牢牢贴在导航栏底部 */
    left: 0 !important;
    background: #fff;
    min-width: 180px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    z-index: 9999;

    /* 2. 透明缓冲区（关键！）—— 只在橘色线下方，不产生白框 */
    /* border-top: 12px solid transparent; */
    /* margin-top: -12px; */
    /* 透明缓冲区，解决鼠标无法停留 */
    /* 透明缓冲区 + 向上偏移，完美贴死导航栏 */
    /* padding-top: 12px; */
    /* margin-top: -12px; */
    /* 👇 调整缓冲区，不影响顶线位置 */
    /* margin-top: 0;
    /* 给整个菜单往上挪1px，完全贴死导航栏 */
    /* transform: translateY(-1px); */ 
}

.itt-nav-list li.dropdown-item .submenu::before {
    content: '';
    position: absolute;
    top: -38px; /* 向上延伸12px，覆盖导航栏和菜单之间的空隙 */
    left: 0;
    width: 100%;
    height: 38px;
    background-color: transparent; /* 完全透明，看不见 */
}


/* 橘色顶线（紧贴导航栏下方） */
.itt-nav-list li.dropdown-item .submenu .submenu-top-line {
    height: 3px;
    background-color: #ff6600;
    width: 100%;
    /*  没有额外的margin或padding */
    margin: 0;
    padding: 0;
}

/* 下拉菜单项 */
.itt-nav-list li.dropdown-item .submenu .submenu-item {
    display: block;
    padding: 10px 18px;
    color: #333;
    font-size: 13px !important;  /* 修改下拉菜单字体大小*/
    border-bottom: 1px solid #eee;
    white-space: nowrap;
}

.itt-nav-list li.dropdown-item .submenu .submenu-item:last-child {
    border-bottom: none;
}

.itt-nav-list li.dropdown-item .submenu .submenu-item:hover {
    background-color: #f5f5f5;
    color: #0066cc;
}

/* hover 显示下拉 */
.itt-nav-list li.dropdown-item:hover .submenu {
    display: block;
}

/* 语言切换按钮 */
.itt-header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.language-switch {
    display: flex;
    gap: 8px;
}

.lang-btn {
    padding: 6px 12px;
    border: 1px solid #ccc;
    background: transparent;
    color: #333 !important;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.lang-btn.active {
    background-color: var(--itt-primary);
    border-color: var(--itt-primary);
    color: #fff !important;
}

.lang-btn:hover {
    border-color: var(--itt-primary);
}

.itt-search-btn {
    background: transparent;
    border: none;
    color: #333 !important;
    cursor: pointer;
}

/* 轮播区 */
.itt-banner {
    position: relative;
    height: 80vh;
    min-height: 600px;
    overflow: hidden;
}

.itt-banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.itt-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--itt-overlay);
    z-index: 2;
}

.itt-banner-content {
    position: relative;
    z-index: 3;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    color: var(--itt-white);
}

.itt-banner-content h1 {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    max-width: 800px;
}

.itt-banner-content p {
    font-size: 20px;
    font-weight: 300;
    margin-bottom: 32px;
    max-width: 600px;
}

.itt-banner-play {
    position: absolute;
    bottom: 30px;
    right: 30px;
    z-index: 3;
    background: rgba(255,255,255,0.2);
    border: none;
    color: var(--itt-white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 以下是你原有所有样式，我全部保留且无冲突 */
.itt-section-header {
    text-align: left;
    margin-bottom: 60px;
    padding-top: 80px;
}

.itt-section-header h2 {
    font-size: 42px;
    font-weight: 600;
    color: var(--itt-dark);
    margin-bottom: 12px;
}

.itt-section-header p {
    font-size: 18px;
    color: #666;
    max-width: 700px;
    /* margin: 0 auto; */
}


.itt-solutions {
    background-color: var(--itt-light-gray);
    padding-bottom: 80px;
}

.itt-solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.itt-section-header h2 {
    font-family: 'Montserrat', 'Noto Sans SC', sans-serif;
    font-size: 42px;
    font-weight: 700;
    color: #1a1a1a;
    text-align: left;
    margin-bottom: 20px;
    margin-top: 0;
    line-height: 1.2;
}

.itt-solution-card {
    background-color: var(--itt-white);
    overflow: hidden;
    transition: transform 0.3s ease;
}

.itt-solution-card:hover {
    transform: translateY(-5px);
}

.itt-solution-card-img {
    width: 100%;
    height: 280px;
    object-fit: cover;
}

.itt-solution-card-content {
    padding: 30px;
}

.itt-solution-card-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--itt-dark);
    margin-bottom: 12px;
}

.itt-solution-card-content p {
    font-size: 16px;
    color: #666;
    margin-bottom: 16px;
}

.itt-card-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--itt-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.itt-news {
    background-color: var(--itt-white);
    padding-bottom: 80px;
}

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

.itt-news-card {
    padding: 30px;
    background-color: var(--itt-light-gray);
    transition: background-color 0.3s ease;
}

.itt-news-card:hover {
    background-color: #f0f0f0;
}

.itt-news-card-date {
    font-size: 14px;
    color: var(--itt-primary);
    margin-bottom: 12px;
    font-weight: 500;
}

.itt-news-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--itt-dark);
    margin-bottom: 12px;
}

.itt-news-card p {
    font-size: 15px;
    color: #666;
}

.itt-contact {
    background-color: var(--itt-light-gray);
    padding-bottom: 80px;
}

.itt-contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.itt-contact-item {
    margin-bottom: 30px;
}

.itt-contact-item h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--itt-primary);
    margin-bottom: 8px;
}

.itt-contact-item p {
    font-size: 16px;
    color: var(--itt-gray);
}

.itt-contact-map iframe {
    width: 100%;
    height: 400px;
    border: none;
}

.itt-footer {
    background-color: var(--itt-dark);
    color: var(--itt-white);
    padding: 60px 0 30px;
}

.itt-footer-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.itt-footer-col h3 {
    font-size: 16px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
    color: var(--itt-white);
}

.itt-footer-col ul li {
    margin-bottom: 12px;
}

.itt-footer-col ul li a {
    font-size: 14px;
    color: #ccc;
    transition: color 0.3s ease;
}

.itt-footer-col ul li a:hover {
    color: var(--itt-primary);
}

.itt-footer-bottom {
    border-top: 1px solid #444;
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    color: #ccc;
}

.itt-footer-links {
    display: flex;
    gap: 20px;
}

.itt-footer-links a {
    color: #ccc;
}

.itt-footer-links a:hover {
    color: var(--itt-primary);
}

.itt-industry {
    padding: 20px 0 60px;
    background-color: var(--itt-light-gray);
}

.itt-industry-header {
    text-align: left;
    margin-bottom: 10px;
    position: relative;
    padding-left: 5px;
}

.itt-industry-header h2 {
    font-size: 42px;
    font-weight: 700;
    color: var(--itt-dark);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0;
}

.itt-industry-header::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: var(--itt-primary);
    margin-top: 10px;
}

.itt-industry-header p {
    font-size: 18px;
    color: #666;
    margin-top: 15px;
    max-width: 800px;
}

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

.itt-industry-card {
    position: relative;
    aspect-ratio: 1.8 / 1;
    overflow: hidden;
    border-radius: 0;
}

.itt-industry-card-img {
    width: 100%;
    height: 100%;
}

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

.itt-industry-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.75), rgba(0,0,0,0.2));
    z-index: 1;
    transition: background 0.3s ease;
}

.itt-industry-card-text {
    position: absolute;
    bottom: 22px;
    left: 22px;
    z-index: 2;
    color: var(--itt-white);
}

.itt-industry-card-text h3 {
    font-size: 18px;
    font-weight: 600;
    text-transform: uppercase;
    margin: 0;
    text-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

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

.itt-industry-card:hover .itt-industry-card-overlay {
    background: linear-gradient(to top, rgba(0, 102, 204, 0.65), rgba(0, 102, 204, 0.35));
}

/* About Company 模块 —— 与 OUR MISSION 100% 对齐 */
.itt-about-banner {
    width: 100%;
    padding: 20px 0 60px;
    background-color: var(--itt-light-gray);
}

/* 复用通用的 section-header 样式，确保和下方标题一致 */
.itt-about-banner .itt-section-header {
    text-align: center;
    margin-bottom: 40px;
}

.itt-about-banner .itt-section-header h2 {
    font-size: 42px;
    font-weight: 700;
    color: var(--itt-dark);
    margin: 0 auto 12px auto;
    font-family: inherit;
}

/* 蓝色分隔线：居中、宽度、颜色与下方模块完全一致 */
/* .itt-about-banner-divider {
    width: 60px;
    height: 3px;
    background: #007bff;
    margin: 0 auto;
} */

/* 正文样式：居中、宽度限制、字体与下方正文对齐 */
.itt-about-banner-desc {
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
}

.itt-about-banner-desc p {
    font-size: 18px;
    font-weight: 500;
    line-height: 1.8;
    margin-bottom: 20px;
    color: #333;
    font-family: inherit;
}

.itt-news {
    position: relative;
    width: 100%;
    padding: 80px 0;
    overflow: hidden;
    font-family: inherit;
}

.itt-news-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.itt-news-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.itt-news-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(240, 240, 240, 0.8);
    z-index: 2;
}

.itt-news .itt-container {
    position: relative;
    z-index: 3;
}

.itt-news .itt-section-header {
    text-align: left;
    margin-bottom: 50px;
    margin-top: -80px;
    font-family: inherit;
}

.itt-news .itt-section-header h2 {
    font-size: 42px;
    font-weight: 700;
    color: var(--itt-dark);
    margin-bottom: 15px;
    font-family: inherit;
}

.itt-news .itt-section-header p {
    font-size: 18px;
    color: #666;
    font-family: inherit;
}

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

.itt-news-card {
    background: rgba(255, 255, 255, 0.9);
    padding: 30px;
    border-radius: 4px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    font-family: inherit;
}

.itt-news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.itt-news-card-date {
    color: var(--itt-primary);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 15px;
    font-family: inherit;
}

.itt-news-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--itt-dark);
    margin-bottom: 15px;
    line-height: 1.4;
    font-family: inherit;
}

.itt-news-card p {
    font-size: 16px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 20px;
    font-family: inherit;
}

.itt-news-card-link {
    color: var(--itt-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: color 0.3s ease;
    font-family: inherit;
}

.itt-news-card-link:hover {
    color: var(--itt-dark);
}


/* 箭头强制显示 */
.nav-arrow {
  display: inline-block !important;
  font-size: 12px !important;
  color: #000 !important;
  opacity: 1 !important;
  visibility: visible !important;
  position: relative !important;
  z-index: 9999 !important;
}

/* hover 箭头旋转 */
.dropdown-item:hover .nav-arrow {
  transform: rotate(180deg) !important;
}


/* 响应式 */
@media (max-width: 992px) {
    .itt-nav-list {
        display: none;
    }
    .itt-banner-content h1 {
        font-size: 36px;
    }
    .itt-about-grid, .itt-solutions-grid, .itt-news-grid {
        grid-template-columns: 1fr 1fr;
    }
    .itt-contact-content {
        grid-template-columns: 1fr;
    }
    .itt-footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .itt-banner {
        height: 60vh;
    }
    .itt-banner-content h1 {
        font-size: 28px;
    }
    .itt-about-grid, .itt-solutions-grid, .itt-news-grid {
        grid-template-columns: 1fr;
    }
    .itt-footer-grid {
        grid-template-columns: 1fr;
    }
    .itt-footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}


/* 👇 这是核心：给所有带下拉的导航项自动加箭头，JS 永远删不掉 */
.itt-nav-list > .dropdown-item > a::after {
    content: "⌵" !important;
    font-size: 12px !important;
    margin-left: 6px !important;
    color: #333 !important;
    display: inline-block !important;
    transition: transform 0.3s !important;
}

/* 👇 hover 翻转箭头 */
.itt-nav-list .dropdown-item:hover a::after {
    transform: rotate(-90deg) !important;
}


/* 👇 核心修复：给下拉菜单加透明缓冲区，接住鼠标 */
.itt-nav-list .dropdown-item .submenu {
    display: none;
    position: absolute;
    top: 100% !important; /* 保持你当前紧贴导航栏的位置，不改动 */
    left: 0;
    background: #fff;
    min-width: 180px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    z-index: 9999;

    /* 👇 透明缓冲区，关键！ */
    /* padding-top: 10px;    给菜单顶部加 10px 透明区域 */
    /* margin-top: -10px;    把菜单整体往上挪 10px，视觉上位置不变 */
}

/* 👇 让菜单本身 hover 时也保持显示 */
.itt-nav-list .dropdown-item:hover .submenu,
.itt-nav-list .submenu:hover {
    display: block;
}


/* 1. 整体模块基础样式 */
/* 模块基础样式 */
/* .our-mission {
  padding: 60px 0 30px 0;
  background-color: #fff;
}

.section-title {
  font-size: 42px;
  font-weight: 700;
  color: #222;
  margin-bottom: 50px;
  padding-left: 5px;
  text-align: left;
} */

/* 核心布局：左右平分，不强制宽度 */

/* ================================ */
/* Our Mission （完全对齐 MARKETS） */
/* ================================ */
.our-mission {
  /* padding: 40px 0 20px 0; */
  padding: 80px 0 60px; 
  background-color: #fff;
}

/* 标题：和 MARKETS 完全一样的布局 + 对齐 */
.our-mission .itt-industry-header {
  text-align: left;
  margin-bottom: 50px;
  position: relative;
  padding-left: 0;
}

.our-mission .itt-industry-header h2 {
  font-size: 42px;
  font-weight: 700;
  color: var(--itt-dark);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0;
}

.our-mission .itt-industry-header::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background-color: var(--itt-primary);
  margin-top: 10px;
}

/* 内容布局（保持你原来的） */
.mission-row {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
  gap: 20px;
}

.mission-col {
  flex: 1;
}

.mission-img-wrapper img {
  width: 90%;
  height: auto;
  display: block;
}

.mission-text p {
  font-size: 16px;
  line-height: 1.6;
  color: #555;
  margin: 0;
}

.mission-text-right {
  padding-left: 20px;
  padding-right: 80px;
}

.mission-text-left {
  padding-left: 20px;
  padding-right: 20px;
}

/* 移动端 */
@media (max-width: 768px) {
  .our-mission {
    padding: 40px 0;
  }
  .mission-row {
    flex-direction: column;
    gap: 20px;
  }
  .mission-row:nth-child(3) {
    flex-direction: column-reverse;
  }
  .mission-text-right,
  .mission-text-left {
    padding: 0;
  }
}


/* Our Advantages 模块：和 MARKETS/Our Mission 风格统一 */
.our-advantages {
  padding: 80px 0;
  background-color: #fff;
}

/* 标题：复用 MARKETS 的样式，自动左对齐 */
.our-advantages .itt-industry-header {
  margin-bottom: 50px;
}

/* 2x2 网格布局 */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 100px;
}

/* 卡片样式 */
.advantage-card {
  text-align: center;
}

.advantage-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  background: #f5f7fa;
  border-radius: 50%;
  display: grid;
  place-items: center;
}

.advantage-icon span {
  font-size: 24px;
}

.advantage-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.advantage-card p {
  font-size: 15px;
  line-height: 1.6;
  color: #555;
  margin: 0;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .advantages-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}



/* Resources.html 页面 - Blog 模块 */
/* .resources-header {
  padding: 60px 20px;
  background-color: #fff;
} */

.resources-blog {
  /* padding: 30px 0 80px; */
  background-color: #fff;
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  height: auto;
  overflow: visible;
}

.page-header {
            text-align: left;
            margin-bottom: 10px;
        }

        .page-header h1 {
            font-size: 42px;
            font-weight: 700;
            color: #333;
            margin: 0;
        } 

/* Blog 网格布局 */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.blog-card {
  display: flex;
  flex-direction: column;
}

.blog-card-img img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.blog-card-content {
  padding: 15px 0;
}

.blog-card-content h4 {
  font-size: 16px;
  font-weight: 500;
  color: #666;
  margin: 0 0 15px;
  line-height: 1.4;
}

.blog-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.blog-date {
  font-size: 14px;
  color: #666;
}

.blog-readmore {
  font-size: 14px;
  color: #0066cc;
  text-decoration: underline;
}

/* 移动端适配 */
@media (max-width: 992px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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



/* =======================================
   移动端导航最终修复版 - 强制覆盖原有样式
======================================= */
.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 28px;
  cursor: pointer;
  padding: 0 12px;
  z-index: 100;
}

@media (max-width: 991px) {
  .mobile-menu-toggle {
    display: block !important;
  }

  .itt-header-inner {
    position: relative !important;
  }

  .itt-nav {
    position: fixed !important;
    top: 70px !important;
    left: 0 !important;
    width: 100% !important;
    height: calc(100vh - 70px) !important;
    background: #fff !important;
    z-index: 9999 !important;
    overflow-y: auto !important;
    display: none !important;
  }

  .itt-nav.active {
    display: block !important;
  }

  .itt-nav-list {
    display: flex !important;
    flex-direction: column !important;
    padding: 20px !important;
    gap: 0 !important;
  }

  .itt-nav-list > li {
    display: block !important;
    width: 100% !important;
    border-bottom: 1px solid #eee !important;
  }

  .itt-nav-list li a {
    display: block !important;
    padding: 14px 0 !important;
    width: 100% !important;
  }

  .submenu {
    position: static !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    background: #f7f7f7 !important;
    padding: 10px 0 !important;
    display: none !important;
  }

  .submenu.show {
    display: block !important;
  }

  .submenu-item {
    padding: 10px 20px !important;
  }

  .submenu-top-line {
    display: none !important;
  }
}