/*
Theme Name: 雾林风企业主题
Theme URI: https://www.wulinfeng.com
Author: 雾林风
Author URI: https://www.wulinfeng.com
Description: 雾林风(WULIN FENG)官方WordPress主题，专业通风降温设备
Version: 1.0.0
Requires at least: 5.0
Tested up to: 6.4
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: wulinfeng-theme
*/

/* ================================
   1. CSS变量定义（颜色系统）
   ================================ */
:root {
    /* 雾林风绿色主题 - 统一配色 */
    --primary-color: #0a5c36;
    --primary-dark: #073d24;
    --primary-light: #10b981;
    --primary-lighter: #34d399;
    --accent-color: #f59e0b;
    --accent-light: #fbbf24;
    --text-dark: #1f2937;
    --text-medium: #4b5563;
    --text-light: #6b7280;
    --bg-white: #ffffff;
    --bg-light: #f0fdf4;
    --bg-gray: #f3f4f6;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --shadow-sm: 0 2px 4px rgba(10,92,54,0.08);
    --shadow-md: 0 4px 12px rgba(10,92,54,0.12);
    --shadow-lg: 0 8px 24px rgba(10,92,54,0.16);
}

/* ================================
   2. 重置与基础样式
   ================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}
a { color: var(--primary-color); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; }

/* ================================
   3. 容器与布局
   ================================ */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--spacing-md); }
.section { padding: var(--spacing-xxl) 0; }
.section-title { text-align: center; margin-bottom: var(--spacing-xl); }
.section-title h2 { font-size: 24px; font-weight: 600; color: var(--text-dark); margin-bottom: var(--spacing-sm); }
.section-title p { font-size: 16px; color: var(--text-medium); }

/* ================================
   4. 顶部导航栏 - rtfans.com两层导航结构
   ================================ */

/* 顶部工具栏 - Logo + 搜索 + 电话 */
.header-top-bar {
    background: #fff;
    border-bottom: 1px solid #eee;
    padding: 10px 0;
}
.header-top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header-top-bar .site-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #333;
}
.header-top-bar .logo-img {
    font-size: 32px;
    font-weight: bold;
    color: #0a5c36;
    margin-right: 10px;
}
.header-top-bar .logo-text {
    font-size: 13px;
    color: #666;
    border-left: 1px solid #ddd;
    padding-left: 10px;
}
.header-tools {
    display: flex;
    align-items: center;
    gap: 20px;
}
.header-search {
    display: flex;
    align-items: center;
    border: 1px solid #ddd;
    border-radius: 20px;
    overflow: hidden;
}
.header-search .search-input {
    border: none;
    padding: 8px 15px;
    width: 200px;
    font-size: 14px;
    outline: none;
}
.header-search .search-btn {
    background: #0a5c36;
    color: #fff;
    border: none;
    padding: 8px 12px;
    cursor: pointer;
}
.header-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #0a5c36;
    font-weight: bold;
}
.header-phone i {
    font-size: 18px;
}

/* 主导航 - 简洁栏目导航 - 参考rtfans.com白色背景 */
.site-header {
    background: #ffffff !important;
    position: relative !important;
    top: auto !important;
    left: auto !important;
    right: auto !important;
    z-index: 1000 !important;
    border-bottom: 1px solid #eee;
}

.header-main {
    position: relative;
    z-index: 1001 !important;
}
    z-index: 10001 !important;
    min-height: 70px !important;
    height: auto !important;
    padding: 10px 0 !important;
}
.header-main .container {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    flex-wrap: nowrap !important;
}
.nav-menu {
    display: flex !important;
    flex-wrap: nowrap !important;
}

/* Logo样式 - 确保能显示 */
.site-logo {
    display: flex !important;
    align-items: center !important;
    min-height: 50px !important;
    padding: 5px 0 !important;
}

.site-logo .logo-text {
    font-size: 24px !important;
    font-weight: bold !important;
    color: #333 !important;
}

/* 主导航菜单 - 蓝色背景白色文字 */
.main-nav {
    min-height: 50px !important;
    height: auto !important;
}

.main-nav ul.nav-menu {
    display: flex;
    justify-content: center;
    gap: 0;
}

/* 主导航菜单 - 深蓝色文字 + 红色悬停效果 */
.main-nav ul.nav-menu > li.nav-item > a.nav-link {
    padding: 15px 25px !important;
    font-size: 16px !important;
    color: #0055aa !important;
    white-space: nowrap;
    transition: color 0.3s, border-color 0.3s;
    border-bottom: 3px solid transparent;
}

.main-nav ul.nav-menu > li.nav-item > a.nav-link:hover,
.main-nav ul.nav-menu > li.nav-item:hover > a.nav-link {
    background: transparent;
    color: #e53935 !important;
    border-bottom-color: #e53935;
}

/* 子导航下拉菜单 - rtfans.com风格 */
.main-nav ul.nav-menu li {
    position: relative;
}
.main-nav ul.nav-menu li .sub-menu,
.main-nav ul.sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: #fff;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    padding: 8px 0;
    z-index: 9999;
}
.main-nav ul.nav-menu li:hover > .sub-menu,
.main-nav ul.nav-menu li:hover > ul {
    display: block;
}
.main-nav ul.sub-menu li a {
    display: block;
    padding: 10px 20px;
    color: #333 !important;
    font-size: 14px !important;
    white-space: nowrap;
}
.main-nav ul.sub-menu li a:hover {
    background: #f5f5f5;
    color: #0a5c36 !important;
}

/* hero-section 紧贴导航栏 */
.hero-section {
    margin-top: 0 !important;
    position: relative;
    z-index: 1;
}

/* 顶部联系栏 - 已移除（参考rtfans.com无顶部栏） */
/* .header-top { */
/*     background: #d00000; */
/*     color: #fff; */
/*     padding: 8px 0; */
/*     font-size: 13px; */
/* } */
/* .header-top .container { display: flex; justify-content: space-between; align-items: center; } */
/* .header-top a { color: #fff; } */
/* .header-contact { display: flex; align-items: center; gap: 24px; } */
/* .header-contact span { display: flex; align-items: center; gap: 6px; } */
/* .header-contact i { color: #ffd700; } */

<evicted reason="replaced" chars=0 />

/* 导航菜单文字 - 深灰色高对比度 + 悬停红色效果 */
.main-nav ul.nav-menu > li.nav-item > a.nav-link {
    color: #333 !important;
}

.main-nav ul.nav-menu > li.nav-item > a.nav-link:hover,
.main-nav ul.nav-menu > li.nav-item:hover > a.nav-link {
    color: #e53935 !important;
}
.header-main .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo样式 - 黑色文字 */
.site-logo {
    display: flex;
    align-items: center;
    padding: 12px 0;
    margin-right: 40px;
}
.site-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
}
.site-logo .logo-img {
    height: 50px;
    width: auto;
    margin-right: 12px;
}
.site-logo .logo-text {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    line-height: 1.2;
}
.site-logo .logo-text small {
    display: block;
    font-size: 11px;
    font-weight: normal;
    color: #666;
    letter-spacing: 2px;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    width: 30px;
    height: 24px;
    position: relative;
    cursor: pointer;
    padding: 10px;
}
.menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: #fff;
    position: absolute;
    left: 10px;
    transition: all 0.3s ease;
}
.menu-toggle span:nth-child(1) { top: 10px; }
.menu-toggle span:nth-child(2) { top: 20px; }
.menu-toggle span:nth-child(3) { top: 30px; }
.menu-toggle.active span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { top: 20px; transform: rotate(-45deg); }

/* 主导航菜单 */
.main-nav {
    display: flex;
    align-items: center;
    width: 100%;
}
.main-nav ul.nav-menu {
    display: flex;
    gap: 0;
    width: 100%;
}

/* 一级菜单项 */
.main-nav ul.nav-menu > li.nav-item {
    position: relative;
}
.main-nav ul.nav-menu > li.nav-item > a.nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 25px 18px;
    color: #333;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    white-space: nowrap;
    position: relative;
}
.main-nav ul.nav-menu > li.nav-item > a.nav-link:hover,
.main-nav ul.nav-menu > li.nav-item:hover > a.nav-link {
    color: #d00000;
}

/* 悬停下划线效果 - 红色下划线 */
/* [已禁用] 旧版导航CSS - 改用header.php内联CSS 
.main-nav ul.nav-menu > li.nav-item > a.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: #d00000;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}
.main-nav ul.nav-menu > li.nav-item:hover > a.nav-link::after {
    width: 80%;
}

/* 大型下拉子菜单 (Mega Menu) - z-index:9999确保在横幅之上 
.sub-menu-wrap {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    min-width: 600px;
    background: linear-gradient(180deg, #fff 0%, #fafafa 100%);
    box-shadow: 0 12px 40px rgba(0,0,0,0.18);
    border-top: 3px solid #f5a623;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 9999;
}
.main-nav ul.nav-menu > li.nav-item:hover > .sub-menu-wrap {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 子菜单内部容器 - flex布局让左侧链接和右侧banner并排 
.sub-menu-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 25px 20px;
    display: flex;
    align-items: flex-start;
    gap: 40px;
}
.sub-menu-inner .sub-menu {
    display: flex;
    flex-direction: column;
    gap: 0;
    min-width: 200px;
    flex-shrink: 0;
    background: transparent;
    box-shadow: none;
    border: none;
    padding: 0;
}
.sub-menu-inner .sub-menu li a {
    padding: 12px 0;
    border-bottom: 1px dashed #eee;
    font-size: 14px;
[已禁用结束] */
    color: #333;
}
.sub-menu-inner .sub-menu li:last-child a {
    border-bottom: none;
}
.sub-menu-inner .sub-menu li a:hover {
    background: transparent;
    color: #f5a623;
    padding-left: 8px;
}

/* 子导航右侧品牌展示区 */
.sub-menu-banner {
    flex: 1;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 8px;
    padding: 25px;
    min-height: 150px;
    border-left: 3px solid #f5a623;
}
.brand-highlight h4 {
    font-size: 18px;
    color: #0055aa;
    margin: 0 0 10px 0;
    font-weight: 700;
}
.brand-highlight p {
    font-size: 13px;
    color: #666;
    margin: 0 0 15px 0;
    line-height: 1.6;
}
.brand-highlight .banner-link {
    display: inline-block;
    padding: 8px 20px;
    background: #f5a623;
    color: #fff;
    border-radius: 4px;
    font-size: 13px;
    text-decoration: none;
    transition: all 0.3s ease;
}
.brand-highlight .banner-link:hover {
    background: #e5941f;
    color: #fff;
    transform: translateX(3px);
}

/* ============================================
   产品中心 megamenu 样式 - rtfans.com风格
   ============================================ */
.megamenu-inner {
    display: flex;
    width: 100%;
    background: #fff;
    padding: 20px;
    gap: 20px;
}
.megamenu-inner .sub-menu {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    flex: 1;
}
.megamenu-inner .sub-menu li {
    border-right: 1px solid #eee;
    padding-right: 15px;
}
.megamenu-inner .sub-menu li:last-child {
    border-right: none;
}
.megamenu-inner .submenu-title {
    display: block;
    padding: 8px 0 10px 0;
    color: #f5a623;
    font-size: 15px;
    font-weight: 700;
    border-bottom: 2px solid #f5a623;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-decoration: none;
}
.megamenu-inner .sub-sub-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border-left: none;
    padding: 0;
    background: transparent;
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.megamenu-inner .sub-sub-menu li a {
    padding: 6px 0;
    color: #333;
    font-size: 13px;
    border-bottom: 1px dashed transparent;
}
.megamenu-inner .sub-sub-menu li a:hover {
    color: #f5a623;
    background: transparent;
    padding-left: 5px;
    border-bottom-color: #f5a623;
}
.megamenu-banner {
    width: 280px;
    flex-shrink: 0;
    background: linear-gradient(135deg, #0055aa 0%, #0077cc 100%);
    border-radius: 8px;
    padding: 25px;
    color: #fff;
}
.megamenu-banner .product-showcase h4 {
    font-size: 18px;
    margin: 0 0 10px 0;
    color: #fff;
}
.megamenu-banner .product-showcase p {
    font-size: 13px;
    color: rgba(255,255,255,0.9);
    margin: 0 0 15px 0;
    line-height: 1.6;
}
.megamenu-banner .banner-link {
    display: inline-block;
    padding: 8px 20px;
    background: #f5a623;
    color: #fff;
    border-radius: 4px;
    font-size: 13px;
    text-decoration: none;
}
.megamenu-banner .banner-link:hover {
    background: #e5941f;
    transform: translateX(3px);
}

.sub-menu.mega-menu {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
}

/* 子菜单列标题 - rtfans.com风格 */
.sub-menu.mega-menu > li {
    border-right: 1px solid #eee;
    padding-right: 15px;
    margin-bottom: 10px;
}
.sub-menu.mega-menu > li:last-child {
    border-right: none;
}

/* 子菜单分类标题 */
.sub-menu.mega-menu > li > a.submenu-link {
    display: block;
    padding: 8px 0 10px 0;
    color: #f5a623;
    font-size: 15px;
    font-weight: 700;
    border-bottom: 2px solid #f5a623;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 子菜单链接 */
.sub-menu.mega-menu li a.submenu-link {
    display: block;
    padding: 8px 0;
    color: #333;
    font-size: 14px;
    transition: all 0.2s ease;
    border-bottom: 1px dashed transparent;
}
.sub-menu.mega-menu li a.submenu-link:hover {
    color: #f5a623;
    padding-left: 8px;
    border-bottom-color: #f5a623;
}

/* 普通子菜单（非Mega Menu）- z-index:9999确保在横幅之上 */
/* 修复：移除min-width限制，使用width:auto让内容撑开，避免长白条 */
/* 品牌中心下拉菜单 - 使用flex布局 */
.sub-menu-wrap.has-banner .sub-menu {
    position: static !important;
    width: 180px;
    flex-shrink: 0;
    box-shadow: none !important;
    border: none !important;
    background: transparent !important;
    padding: 0 !important;
}

.sub-menu-wrap.has-banner .sub-menu li a {
    display: block;
    padding: 10px 15px;
    color: #333;
    font-size: 14px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.sub-menu-wrap.has-banner .sub-menu li a:hover {
    background: #0a5c36;
    color: #fff;
    padding-left: 20px;
}

.sub-menu:not(.mega-menu) {
    position: absolute;
    top: 100%;
    left: 0;
    width: auto;
    max-width: 300px;
    background: #fff;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    border-top: 3px solid #f5a623;
    padding: 12px 0;
    z-index: 9999;
}
.sub-menu:not(.mega-menu) li a {
    display: block;
    padding: 10px 20px;
    color: #333;
    font-size: 14px;
    transition: all 0.2s ease;
}
.sub-menu:not(.mega-menu) li a:hover {
    background: linear-gradient(90deg, #fff8e6 0%, #fff 100%);
    color: #f5a623;
    padding-left: 25px;
}

/* 子子菜单（三级菜单）样式 */
.sub-sub-menu {
    position: absolute;
    top: 0;
    left: 100%;
    min-width: 180px;
    background: #fff;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    border-left: 3px solid #f5a623;
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px);
    transition: all 0.3s ease;
    z-index: 10000;
}
.has-submenu:hover > .sub-sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}
.sub-sub-menu li a {
    display: block;
    padding: 8px 15px;
    color: #333;
    font-size: 13px;
    transition: all 0.2s ease;
}
.sub-sub-menu li a:hover {
    background: #fff8e6;
    color: #f5a623;
    padding-left: 20px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .main-nav ul.nav-menu > li.nav-item > a.nav-link {
        padding: 20px 15px;
        font-size: 14px;
    }
    .sub-menu.mega-menu {
        grid-template-columns: repeat(3, 1fr);
    }
}
@media (max-width: 768px) {
    .menu-toggle { display: block; }
    .menu-toggle span { background: #333; }
    .main-nav ul.nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 10px 0;
        box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    }
    .main-nav ul.nav-menu.active { display: flex; }
    .main-nav ul.nav-menu > li.nav-item > a.nav-link {
        padding: 15px 20px;
        border-bottom: 1px solid #eee;
        color: #333;
    }
    .main-nav ul.nav-menu > li.nav-item > a.nav-link::after {
        display: none;
    }
    .sub-menu-wrap {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border-top: none;
        background: #f5f5f5;
    }
    .sub-menu.mega-menu {
        grid-template-columns: 1fr;
        padding: 10px 0;
    }
    .sub-menu.mega-menu > li {
        border-right: none;
        border-bottom: 1px solid #eee;
        padding: 0 15px;
    }
}

/* ================================
   5. 轮播区域 (Hero Section)
   ================================ */
/* 横幅轮播区域 - 修复图片显示，等比例居中不裁剪 */
/* ==========================================
   横幅/轮播区域 - 修复高度和显示问题
   ========================================== */
.hero-section { 
    margin-top: 0; 
    position: relative; 
    overflow: hidden; 
    height: 600px; /* PC端固定高度600px */
}
.hero-slider { position: relative; height: 100%; }
.hero-slide {
    position: relative;
    height: 600px; /* PC端固定高度600px */
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
}
/* 平板端 ≤1024px */
@media (max-width: 1024px) {
    .hero-section, .hero-slide {
        height: 500px;
    }
}
/* 手机端 ≤768px */
@media (max-width: 768px) {
    .hero-section, .hero-slide {
        height: 400px;
        margin-top: 80px;
    }
}
.hero-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: transparent;
}
.hero-section { position: relative; overflow: hidden; }
.hero-slider, .hero-slides, .hero-slide { height: 520px; }
.hero-slide { background-size: cover; background-position: center; display: flex; align-items: center; }
.hero-slide::before { content: ''; position: absolute; inset: 0; background: transparent; }
.hero-content { 
    position: relative; 
    z-index: 1; 
    color: var(--bg-white); 
    width: 100%; 
    text-align: center; 
    padding: 0 20px; 
    box-sizing: border-box;
}
.hero-content h1 { 
    font-size: 52px; 
    font-weight: bold; 
    margin: 0 0 16px 0; 
    line-height: 1.3; 
    letter-spacing: 6px; 
    color: #fff; 
}
.hero-content p.hero-subtitle { 
    font-size: 20px; 
    margin: 0; 
    letter-spacing: 3px; 
    color: rgba(255,255,255,0.9); 
}
.hero-btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-xl);
    background: var(--primary-color);
    color: var(--bg-white);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}
.hero-btn:hover { background: var(--primary-dark); color: var(--bg-white); transform: translateY(-2px); }

.hero-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 10;
}
.hero-nav:hover { background: var(--primary-color); color: var(--bg-white); }
.hero-nav.prev { left: 20px; }
.hero-nav.next { right: 20px; }
.hero-dots { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); display: flex; gap: var(--spacing-sm); z-index: 10; }
.hero-dot { width: 12px; height: 12px; border-radius: 50%; background: rgba(255,255,255,0.5); cursor: pointer; transition: all var(--transition-fast); }
.hero-dot.active { background: var(--primary-color); transform: scale(1.2); }

/* ================================
   6. 产品模块 - rtfans.com深灰背景
   ================================ */
.products-section { background: #2a2a2a; padding: var(--spacing-xxl) 0; }
.products-section .section-title h2 { color: #fff; }
.products-section .section-title p { color: #aaa; }
.products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--spacing-lg); }
.product-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    overflow: hidden;
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
/* 产品缩略图容器 - 正方形 + cover填充 */
.product-card .product-thumb {
    width: 100%;
    aspect-ratio: 1 / 1;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.product-card img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
    transition: transform var(--transition-normal);
}
.product-card:hover img { transform: scale(1.08); }
.product-info { padding: var(--spacing-md); }
.product-info h3 { font-size: 18px; font-weight: 600; margin-bottom: var(--spacing-xs); color: var(--text-dark); }
.product-info p { font-size: 14px; color: var(--text-medium); margin-bottom: var(--spacing-sm); }
.product-link { display: inline-flex; align-items: center; color: var(--primary-color); font-size: 14px; }
.product-link:hover { color: var(--primary-dark); }
.product-link i { margin-left: 5px; transition: transform var(--transition-fast); }
.product-link:hover i { transform: translateX(5px); }

.products-filter { display: flex; justify-content: center; gap: var(--spacing-md); margin-bottom: var(--spacing-xl); flex-wrap: wrap; }
.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-white);
    color: var(--text-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}
.filter-btn:hover, .filter-btn.active { background: var(--primary-color); color: var(--bg-white); border-color: var(--primary-color); }

/* ================================
   7. 案例模块 - 浅色背景
   ================================ */
.cases-section { padding: var(--spacing-xxl) 0; background: #f5f5f5; }
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-lg); }
/* 案例卡片图片 - 正方形 */
.case-card {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}
.case-card .case-thumb {
    width: 100%;
    aspect-ratio: 1 / 1 !important;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.case-card .case-img,
.case-card img {
    width: auto !important;
    height: auto !important;
    max-width: 100% !important;
    max-height: 100% !important;
    object-fit: contain !important;
    object-position: center !important;
    transition: transform var(--transition-normal);
}
.case-card:hover .case-img,
.case-card:hover img { transform: scale(1.08); }
.case-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-lg);
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: var(--bg-white);
}
.case-overlay h3 { font-size: 18px; margin-bottom: var(--spacing-xs); }
.case-overlay p { font-size: 14px; opacity: 0.8; }

/* ================================
   8. 统计/优势模块
   ================================ */
.stats-section { background: var(--primary-color); color: var(--bg-white); padding: var(--spacing-xxl) 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--spacing-xl); text-align: center; }
.stat-item h2 { font-size: 48px; font-weight: bold; margin-bottom: var(--spacing-xs); }
.stat-item p { font-size: 18px; opacity: 0.9; }

.features-section { padding: var(--spacing-xxl) 0; background: var(--bg-gray); }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--spacing-lg); }
.feature-card {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}
.feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 32px;
}
.feature-card h3 { font-size: 18px; margin-bottom: var(--spacing-sm); color: var(--text-dark); }
.feature-card p { font-size: 14px; color: var(--text-medium); line-height: 1.8; }

/* ================================
   9. 新闻动态
   ================================ */
.news-section { padding: var(--spacing-xxl) 0; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-lg); }
.news-card { background: var(--bg-white); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); transition: all var(--transition-normal); }
.news-card:hover { box-shadow: var(--shadow-md); }
/* 新闻卡片缩略图 - 正方形 */
.news-thumb { position: relative; overflow: hidden; }
.news-thumb {
    width: 100%;
    aspect-ratio: 1/1;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.news-thumb-inner {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.news-thumb img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
    transition: transform var(--transition-normal);
}
.news-card:hover .news-thumb img { transform: scale(1.1); }
.news-date { position: absolute; top: var(--spacing-sm); left: var(--spacing-sm); background: var(--primary-color); color: var(--bg-white); padding: var(--spacing-xs) var(--spacing-sm); border-radius: var(--radius-sm); font-size: 14px; }
.news-content { padding: var(--spacing-md); }
.news-content h3 { font-size: 16px; margin-bottom: var(--spacing-sm); color: var(--text-dark); line-height: 1.5; }
.news-content h3 a { color: inherit; }
.news-content h3 a:hover { color: var(--primary-color); }
.news-excerpt { font-size: 14px; color: var(--text-medium); line-height: 1.8; }

/* 新闻图片容器 - 正方形contain模式 */
.news-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.news-image img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
    transition: transform var(--transition-normal);
}
.news-card:hover .news-image img { transform: scale(1.08); }

/* ================================
   10. 首页轮播区域
   ================================ */
.hero-slider-section {
    margin-top: 80px;
}
.hero-slider {
    height: 600px;
    position: relative;
}
.hero-slide {
    height: 600px;
    background-size: cover;
    background-position: center;
    position: relative;
}
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: transparent;
}
.hero-content {
    position: relative;
    z-index: 2;
    color: #fff;
    padding-top: 120px;
}
.hero-content h1 {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}
.hero-content p {
    font-size: 22px;
    margin-bottom: 30px;
    opacity: 0.95;
}
.hero-cta {
    display: flex;
    gap: 20px;
}
.btn-hero {
    padding: 14px 36px;
    background: #fff;
    color: #1b5e20;
    border-radius: 4px;
    font-weight: 600;
    transition: all 0.3s;
}
.btn-hero:hover {
    background: #e8f5e9;
    transform: translateY(-2px);
}
.btn-hero-outline {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}
.btn-hero-outline:hover {
    background: #fff;
    color: #1b5e20;
}
.swiper-pagination-bullet {
    background: #fff;
}
.swiper-button-prev, .swiper-button-next {
    color: #fff;
}

/* ================================
   10. 子页面横幅区域 (Page Banner)
   ================================ */
.page-banner {
    height: 350px;
    position: relative;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    margin-top: 0;
    display: flex;
    align-items: center;
}
.page-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(10,92,54,0.75) 0%, rgba(20,140,80,0.65) 100%);
}
.page-banner-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    text-align: center !important;
    color: #fff;
    padding: 0 20px;
}
.page-banner-content h1 {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}
.page-banner-content .breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255,255,255,0.9);
}
.page-banner-content .breadcrumb a {
    color: #ffd700;
}
.page-banner-content .breadcrumb a:hover {
    text-decoration: underline;
}
.page-banner-content .breadcrumb span {
    color: rgba(255,255,255,0.6);
}

/* 横幅区域背景图片样式 - 绿色主题Banner */
.page-banner.banner-home {
    background-image: url('assets/images/banner-home.png');
}
/* 产品中心横幅 - 绿色渐变覆盖 */
.page-banner.banner-products::before {
    background: linear-gradient(135deg, rgba(10,92,54,0.75) 0%, rgba(20,140,80,0.65) 100%);
}
.page-banner.banner-about {
    background-image: url('assets/images/banner-about.png');
}
.page-banner.banner-cases {
    background-image: url('assets/images/banner-cases.png');
}
.page-banner.banner-news {
    background-image: url('assets/images/banner-news.png');
}
.page-banner.banner-contact {
    background-image: url('assets/images/banner-contact.jpg');
}
/* 品牌中心横幅 - 绿色渐变覆盖 */
.page-banner.banner-brand {
    background-image: linear-gradient(135deg, #1b5e20 0%, #2e7d32 50%, #388e3c 100%);
}
.page-banner.banner-brand::before {
    background: linear-gradient(135deg, rgba(27,94,32,0.9) 0%, rgba(46,125,50,0.8) 100%);
}
/* 横幅描述文字居中 */
.page-banner-content .banner-description {
    font-size: 16px;
    margin-top: 10px;
    margin-bottom: 15px;
    opacity: 0.9;
}

/* 服务与招商横幅 - 绿色渐变主题 */
.page-banner.banner-join {
    background-image: linear-gradient(135deg, #0a5c36 0%, #2e7d32 50%, #388e3c 100%);
}
.page-banner.banner-join::before {
    background: linear-gradient(135deg, rgba(10,92,54,0.75) 0%, rgba(46,125,50,0.65) 100%);
}
/* 通风方案横幅 - 绿色渐变主题 */
.page-banner.banner-solution {
    background-image: linear-gradient(135deg, #0a5c36 0%, #2e7d32 50%, #388e3c 100%);
}
.page-banner.banner-solution::before {
    background: linear-gradient(135deg, rgba(10,92,54,0.75) 0%, rgba(46,125,50,0.65) 100%);
}

/* 默认横幅背景（使用绿色渐变） */
.page-banner.banner-default {
    background-image: linear-gradient(135deg, #0a5c36 0%, #10b981 100%);
}
.page-banner.banner-default::before {
    background: transparent;
}

/* 响应式横幅高度 */
@media (max-width: 768px) {
    .page-banner {
    height: 450px;
        height: 220px;
    }
    .page-banner-content h1 {
        font-size: 28px;
    }
    .page-banner-content .breadcrumb {
        font-size: 12px;
    }
}

/* ================================
   11. 页面内容区域
   ================================ */
.page-content { padding: 60px 0; min-height: 60vh; }
.page-header { text-align: center; margin-bottom: var(--spacing-xl); padding-bottom: var(--spacing-lg); border-bottom: 2px solid var(--border-color); }
.page-header h1 { font-size: 24px; color: var(--text-dark); margin-bottom: var(--spacing-sm); }
.breadcrumb { display: flex; justify-content: center; gap: var(--spacing-sm); font-size: 14px; color: var(--text-medium); }
.breadcrumb a { color: var(--text-medium); }
.breadcrumb a:hover { color: var(--primary-color); }
.breadcrumb span { color: var(--text-light); }
.breadcrumb span i { margin: 0 5px; color: #ccc; }

/* ================================
   12. 详情页样式
   ================================ */
.single-content { padding: 60px 0; }
.single-header { margin-bottom: 30px; padding-bottom: 20px; border-bottom: 1px solid var(--border-color); }
.single-header h1 { font-size: 28px; color: var(--text-dark); margin-bottom: 15px; }
.single-meta { display: flex; gap: 20px; font-size: 14px; color: var(--text-medium); }
.single-meta span { display: flex; align-items: center; gap: 5px; }
.single-featured-img { margin-bottom: 30px; }
.single-featured-img img { width: 100%; height: auto; border-radius: var(--radius-md); }
.single-body { font-size: 16px; line-height: 1.8; color: var(--text-dark); }
.single-body p { margin-bottom: 20px; }
.single-body h2, .single-body h3 { margin: 30px 0 15px; color: var(--text-dark); }
.single-body ul, .single-body ol { margin: 20px 0; padding-left: 25px; }
.single-body li { margin-bottom: 10px; list-style: disc; }
.single-body ol li { list-style: decimal; }

/* ================================
   11. 列表页通用样式
   ================================ */
/* 产品卡片网格 */
.archive-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-lg); }
/* 产品卡片 - 统一正方形缩略图 300x300 */
.archive-card { background: var(--bg-white); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); transition: all var(--transition-normal); }
.archive-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
/* 产品/案例/新闻缩略图容器 - 浅灰色背景 + flex居中，兼容方形/长方形图片 */
.archive-card .product-thumb,
.archive-card .archive-thumb {
    width: 100%;
    height: 240px;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.archive-card img { 
    width: auto; 
    height: auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
    transition: transform var(--transition-normal); 
}
.archive-card:hover img { transform: scale(1.05); }
.archive-info { padding: var(--spacing-md); }
.archive-info h2 { font-size: 18px; margin-bottom: var(--spacing-sm); color: var(--text-dark); }
.archive-info h2 a { color: inherit; }
.archive-info h2 a:hover { color: var(--primary-color); }
.archive-excerpt { font-size: 14px; color: var(--text-medium); margin-bottom: var(--spacing-sm); line-height: 1.8; }
.archive-meta { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-light); }
.archive-link { display: inline-flex; align-items: center; color: var(--primary-color); font-size: 14px; }
.archive-link:hover { color: var(--primary-dark); }

.pagination { display: flex; justify-content: center; gap: var(--spacing-xs); margin-top: var(--spacing-xl); }
.pagination a, .pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--spacing-sm);
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-dark);
    transition: all var(--transition-fast);
}
.pagination a:hover, .pagination .current { background: var(--primary-color); color: var(--bg-white); border-color: var(--primary-color); }

/* ================================
   12. 详情页样式
   ================================ */
.single-content { margin-top: 120px; padding: var(--spacing-xxl) 0; }
.single-header { text-align: center; margin-bottom: var(--spacing-xl); }
.single-header h1 { font-size: 28px; color: var(--text-dark); margin-bottom: var(--spacing-md); }
.single-meta { display: flex; justify-content: center; gap: var(--spacing-lg); font-size: 14px; color: var(--text-medium); }
/* 详情页特色图片 - 浅灰色背景 + contain完整显示 */
.single-featured-img { margin-bottom: var(--spacing-xl); border-radius: var(--radius-md); overflow: hidden; }
.single-featured-img {
    width: 100%;
    height: 400px;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
}
.single-featured-img img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
}
.single-body { max-width: 900px; margin: 0 auto; }
.single-body h2 { font-size: 20px; color: var(--text-dark); margin: var(--spacing-xl) 0 var(--spacing-md); padding-bottom: var(--spacing-sm); border-bottom: 2px solid var(--primary-color); }
.single-body h3 { font-size: 18px; color: var(--text-dark); margin: var(--spacing-lg) 0 var(--spacing-sm); }
.single-body p { margin-bottom: var(--spacing-md); line-height: 2; color: var(--text-dark); }
.single-body ul, .single-body ol { margin-bottom: var(--spacing-md); padding-left: var(--spacing-xl); }
.single-body li { list-style: disc; margin-bottom: var(--spacing-xs); line-height: 1.8; }
.single-body img { max-width: 100%; height: auto; margin: var(--spacing-md) 0; border-radius: var(--radius-sm); }

.related-posts { margin-top: var(--spacing-xxl); padding-top: var(--spacing-xl); border-top: 1px solid var(--border-color); }
.related-posts h2 { font-size: 20px; margin-bottom: var(--spacing-lg); color: var(--text-dark); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-lg); }

/* 产品详情页 */
/* 产品详情页主图 - 浅灰色背景 + contain完整显示 */
.product-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-lg); margin-bottom: var(--spacing-xl); }
.product-main-img { border-radius: var(--radius-md); overflow: hidden; }
.product-main-img {
    width: 100%;
    height: 400px;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
}
.product-main-img img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
}
.product-specs { background: var(--bg-gray); padding: var(--spacing-lg); border-radius: var(--radius-md); }
.product-specs h3 { font-size: 18px; margin-bottom: var(--spacing-md); color: var(--text-dark); }
.spec-table { width: 100%; }
.spec-table tr { border-bottom: 1px solid var(--border-color); }
.spec-table th { padding: var(--spacing-sm) 0; font-weight: 500; color: var(--text-medium); text-align: left; width: 40%; }
.spec-table td { padding: var(--spacing-sm) 0; color: var(--text-dark); }

/* ================================
   13. 底部 Footer - rtfans.com深色风格
   ================================ */
.site-footer { 
    background: #1a1a1a; 
    color: var(--bg-white); 
    padding-top: var(--spacing-xxl);
    border-top: 3px solid var(--primary-color);
}
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--spacing-xl); padding-bottom: var(--spacing-xl); border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-about h3 { font-size: 20px; margin-bottom: var(--spacing-md); }
.footer-about p { font-size: 14px; color: rgba(255,255,255,0.7); line-height: 1.8; margin-bottom: var(--spacing-md); }
.footer-social { display: flex; gap: var(--spacing-sm); }
.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: var(--bg-white);
    transition: all var(--transition-fast);
}
.footer-social a:hover { background: var(--primary-color); }
.footer-links h4 { font-size: 16px; margin-bottom: var(--spacing-md); color: var(--bg-white); }
.footer-links ul li { margin-bottom: var(--spacing-sm); }
.footer-links ul li a { color: rgba(255,255,255,0.7); font-size: 14px; }
.footer-links ul li a:hover { color: var(--bg-white); }
.footer-contact p { color: rgba(255,255,255,0.7); font-size: 14px; margin-bottom: var(--spacing-sm); display: flex; align-items: center; gap: var(--spacing-xs); }
.footer-contact i { color: var(--primary-light); }
.footer-bottom { padding: var(--spacing-md) 0; text-align: center; font-size: 14px; color: rgba(255,255,255,0.5); }
.footer-bottom a { color: rgba(255,255,255,0.5); }

.back-to-top { position: fixed; bottom: 30px; right: 30px; width: 50px; height: 50px; background: var(--primary-color); color: var(--bg-white); border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; opacity: 0; visibility: hidden; transition: all var(--transition-fast); z-index: 999; }
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--primary-dark); transform: translateY(-5px); }

/* ================================
   14. 联系表单
   ================================ */
.contact-section { padding: var(--spacing-xxl) 0; background: var(--bg-gray); }
.contact-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-xl); }
.contact-form { background: var(--bg-white); padding: var(--spacing-xl); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.contact-form h3 { font-size: 20px; margin-bottom: var(--spacing-lg); color: var(--text-dark); }
.form-group { margin-bottom: var(--spacing-md); }
.form-group label { display: block; margin-bottom: var(--spacing-xs); font-weight: 500; color: var(--text-dark); }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: var(--spacing-sm) var(--spacing-md); border: 1px solid var(--border-color); border-radius: var(--radius-sm); transition: border-color var(--transition-fast); }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: var(--primary-color); }
.form-group textarea { min-height: 120px; resize: vertical; }
.form-submit { text-align: center; }
.form-submit button { padding: var(--spacing-sm) var(--spacing-xxl); background: var(--primary-color); color: var(--bg-white); border-radius: var(--radius-sm); font-size: 16px; cursor: pointer; transition: all var(--transition-fast); }
.form-submit button:hover { background: var(--primary-dark); }
.contact-info { background: #333333; color: var(--bg-white); padding: var(--spacing-xl); border-radius: var(--radius-md); }
.contact-info h3 { font-size: 20px; margin-bottom: var(--spacing-lg); }
.contact-info-item { display: flex; align-items: flex-start; margin-bottom: var(--spacing-lg); }
.contact-info-item i { width: 40px; height: 40px; background: var(--primary-color); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: var(--spacing-md); font-size: 18px; }
.contact-info-item h4 { font-size: 16px; margin-bottom: var(--spacing-xs); }
.contact-info-item p { font-size: 14px; color: rgba(255,255,255,0.7); }

/* ================================
   15. 侧边栏
   ================================ */
.sidebar { background: var(--bg-white); padding: var(--spacing-lg); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.sidebar-widget { margin-bottom: var(--spacing-xl); }
.sidebar-widget:last-child { margin-bottom: 0; }
.sidebar-widget h3 { font-size: 18px; padding-bottom: var(--spacing-sm); margin-bottom: var(--spacing-md); border-bottom: 2px solid var(--primary-color); color: var(--text-dark); }
.sidebar-categories ul li { margin-bottom: var(--spacing-sm); }
.sidebar-categories ul li a { display: flex; justify-content: space-between; color: var(--text-dark); padding: var(--spacing-xs) 0; border-bottom: 1px solid var(--border-color); }
.sidebar-categories ul li a:hover { color: var(--primary-color); }
.sidebar-categories ul li a span { background: var(--bg-gray); padding: 2px 8px; border-radius: 10px; font-size: 12px; }

/* ================================
   16. 动画效果
   ================================ */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.05); } }
.animate-fadeIn { animation: fadeIn 0.5s ease forwards; }
.animate-slideUp { animation: slideUp 0.5s ease forwards; }

/* ================================
   17. 响应式布局
   ================================ */
@media (max-width: 1024px) {
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .cases-grid, .news-grid, .archive-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-top { grid-template-columns: repeat(2, 1fr); }
    .product-gallery { grid-template-columns: 1fr; }
    .contact-wrapper { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .header-top { display: none; }
    .site-logo .logo-text { font-size: 16px; }
    .main-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--bg-white); box-shadow: var(--shadow-md); padding: var(--spacing-md); }
    .main-nav.active { display: block; }
    .main-nav ul { flex-direction: column; gap: 0; }
    .main-nav > ul > li > a { padding: var(--spacing-sm); border-bottom: 1px solid var(--border-color); }
    .main-nav .sub-menu { position: static; box-shadow: none; opacity: 1; visibility: visible; transform: none; padding-left: var(--spacing-md); }
    .menu-toggle { display: block; }
    .hero-slide { height: 400px; }
    .hero-content h1 { font-size: 28px; }
    .hero-content p { font-size: 16px; }
    .products-grid, .cases-grid, .news-grid, .archive-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-item h2 { font-size: 36px; }
    .features-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr; text-align: center; }
    .footer-social { justify-content: center; }
    .footer-contact p { justify-content: center; }
    .related-grid { grid-template-columns: 1fr; }
    .product-gallery { grid-template-columns: 1fr; }
    .single-featured-img img { height: 250px; }
    .pagination { flex-wrap: wrap; }
}

/* ================================
   通用图片适配规则
   ================================ */
/* 所有图片响应式、不拉伸、居中 */
img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
    margin-left: auto;
    margin-right: auto;
}
/* 产品/案例/新闻图片 - contain完整显示 */
.post-thumbnail img,
.entry-content img,
.product-image img {
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 100%;
    object-fit: contain;
}
/* 横幅图片居中不裁剪 */
.hero-slide img,
.slider-image {
    object-fit: contain !important;
    background-position: center center !important;
}


/* ================================
   关于我们页面
   ================================ */
.about-hero { margin-bottom: 40px; border-radius: 8px; overflow: hidden; }
.about-hero img { width: 100%; height: 400px; object-fit: cover; }
.about-content { max-width: 900px; margin: 0 auto; padding: 40px 0; }
.about-content h2 { font-size: 24px; color: #333; margin: 30px 0 15px; }
.about-content p { font-size: 15px; color: #666; line-height: 1.8; margin-bottom: 15px; }
.about-features { margin-top: 60px; padding-top: 40px; border-top: 1px solid #eee; }
.about-features h3 { text-align: center; font-size: 28px; color: #333; margin-bottom: 40px; }
.about-features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.about-feature-item { text-align: center; padding: 30px; background: #fff; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
.about-feature-icon { width: 70px; height: 70px; margin: 0 auto 20px; background: linear-gradient(135deg, #0069ff, #0052cc); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 28px; }
.about-feature-item h3 { font-size: 18px; color: #333; margin-bottom: 10px; }
.about-feature-item p { font-size: 14px; color: #888; }

/* ================================
   联系方式
   ================================ */
.contact-wrapper { display: grid; grid-template-columns: 1fr 400px; gap: 40px; margin-top: 40px; }
.contact-form { background: #fff; padding: 40px; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
.contact-form h3 { font-size: 22px; color: #333; margin-bottom: 30px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; color: #666; margin-bottom: 8px; }
.form-group label span { color: #f00; }
.form-group input, .form-group textarea { width: 100%; padding: 12px 15px; border: 1px solid #ddd; border-radius: 4px; font-size: 14px; transition: border-color 0.3s; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: #0069ff; }
.form-group textarea { min-height: 120px; resize: vertical; }
.form-submit { text-align: center; margin-top: 30px; }
.form-submit button { padding: 12px 40px; background: #0069ff; color: #fff; border: none; border-radius: 4px; font-size: 16px; cursor: pointer; transition: background 0.3s; }
.form-submit button:hover { background: #0052cc; }

/* ====================================
   头部基础样式
   ==================================== */
.site-header {
    position: relative;
    z-index: 1000;
}

/* 顶部联系栏 */
.header-top {
    background: #1a1a1a;
    color: #fff;
    padding: 8px 0;
    font-size: 14px;
}

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

.header-top a {
    color: #fff;
}

.header-contact {
    display: flex;
    align-items: center;
    gap: 24px;
}

.header-contact span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.header-contact i {
    color: #0066b3;
}

/* ====================================
   主导航区域 - 白色背景 + z-index确保不被遮挡
   ==================================== */
.header-main {
    background: #fff !important;
    position: relative;
    z-index: 1001 !important;
    border-bottom: 2px solid #e53935;
}

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

/* Logo样式 */
.site-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.site-logo img {
    height: 50px;
}

.site-logo .logo-text {
    font-size: 24px;
    font-weight: bold;
    color: #fff;
    margin-left: 8px;
}

/* ====================================
   主导航菜单
   ==================================== */
.main-nav {
    display: flex;
    align-items: center;
}

.main-nav ul.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* 一级菜单项 */
.main-nav ul.nav-menu > li.nav-item {
    position: relative;
}

.main-nav ul.nav-menu > li.nav-item > a.nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 20px 22px;
    color: #fff;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.main-nav ul.nav-menu > li.nav-item > a.nav-link:hover,
.main-nav ul.nav-menu > li.nav-item:hover > a.nav-link,
.main-nav ul.nav-menu > li.nav-item.current-menu-item > a.nav-link,
.main-nav ul.nav-menu > li.nav-item.current-menu-ancestor > a.nav-link {
    color: #ffd700;
}

/* 一级菜单激活状态 */
.main-nav ul.nav-menu > li.nav-item.active > a.nav-link {
    color: #ffd700;
}

/* ====================================
   下拉箭头
   ==================================== */
.nav-link .fas {
    font-size: 10px;
    transition: transform 0.3s ease;
}

.main-nav ul.nav-menu > li.nav-item:hover > a .fa-chevron-down {
    transform: rotate(180deg);
}

/* ====================================
   大型下拉子菜单 (Mega Menu)
   ==================================== */
.sub-menu-wrap {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: #fff;
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
    border-top: 3px solid #ffd700;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 99999;
}

.main-nav ul.nav-menu > li.nav-item:hover > .sub-menu-wrap {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sub-menu-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 25px 20px;
    display: flex;
    align-items: flex-start;
    gap: 40px;
}

.sub-menu-inner .sub-menu {
    display: flex;
    flex-direction: column;
    gap: 0;
    min-width: 200px;
    flex-shrink: 0;
    list-style: none;
    margin: 0;
    padding: 0;
    background: transparent;
    box-shadow: none;
    border: none;
}

/* 子菜单项目 - 多列布局 */
.sub-menu.mega-menu {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0;
}

.sub-menu.mega-menu > li {
    border-right: 1px solid #eee;
    padding: 0 20px;
}

.sub-menu.mega-menu > li:first-child {
    padding-left: 0;
}

.sub-menu.mega-menu > li:last-child {
    border-right: none;
    padding-right: 0;
}

/* 子菜单链接 */
.sub-menu.mega-menu li a.submenu-link {
    display: block;
    padding: 10px 0;
    color: #333;
    font-size: 14px;
    text-decoration: none;
    border-bottom: 1px dashed #ddd;
    transition: all 0.2s ease;
}

.sub-menu.mega-menu li a.submenu-link:hover {
    color: #0066b3;
    padding-left: 5px;
}

.sub-menu.mega-menu li:last-child a.submenu-link {
    border-bottom: none;
}

/* 二级子菜单（无下拉箭头） */
.sub-menu:not(.mega-menu) {
    min-width: 180px;
    background: #fff;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.sub-menu:not(.mega-menu) li a {
    display: block;
    padding: 12px 20px;
    color: #333;
    font-size: 14px;
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.2s ease;
}

.sub-menu:not(.mega-menu) li a:hover {
    background: #f5f5f5;
    color: #0066b3;
}

.sub-menu:not(.mega-menu) li:last-child a {
    border-bottom: none;
}

/* ====================================
   移动端响应式
   ==================================== */
@media (max-width: 1024px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #0066b3;
        padding: 15px;
    }
    
    .main-nav.active {
        display: block;
    }
    
    .main-nav ul.nav-menu {
        flex-direction: column;
    }
    
    .main-nav ul.nav-menu > li.nav-item > a.nav-link {
        padding: 15px;
        border-bottom: 1px solid rgba(255,255,255,0.2);
    }
    
    .sub-menu-wrap {
        position: static;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: rgba(0,0,0,0.2);
        border: none;
    }
    
    .sub-menu-inner {
        padding: 10px 20px;
    }
    
    .sub-menu.mega-menu {
        grid-template-columns: 1fr;
    }
    
    .sub-menu.mega-menu > li {
        border: none;
        padding: 0;
    }
    
    .menu-toggle {
        display: block;
    }
}

/* ====================================
   增强导航样式
   ==================================== */
/* 导航容器 */
.main-nav {
    display: flex;
    align-items: center;
}

.main-nav ul.nav-menu {
    display: flex;
    align-items: center;
    gap: 0;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* 一级菜单项 */
.main-nav ul.nav-menu > li.nav-item {
    position: relative;
}

.main-nav ul.nav-menu > li.nav-item > a.nav-link {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 12px 18px;
    color: var(--text-dark);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.main-nav ul.nav-menu > li.nav-item > a.nav-link:hover,
.main-nav ul.nav-menu > li.nav-item.current-menu-item > a.nav-link,
.main-nav ul.nav-menu > li.nav-item.current-menu-ancestor > a.nav-link {
    color: var(--primary-color);
}

/* 下拉箭头图标 */
.nav-link .fa-chevron-down {
    font-size: 10px;
    transition: transform var(--transition-fast);
    color: #888;
    margin-left: 4px;
}
.has-submenu:hover .nav-link .fa-chevron-down {
    transform: rotate(180deg);
    color: #f5a623;
}

.main-nav ul.nav-menu > li.nav-item:hover > a .fa-chevron-down {
    transform: rotate(180deg);
}

/* 二级子菜单（下拉） */
.main-nav ul.nav-menu > li.nav-item > ul.sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: #fff;
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    border-top: 3px solid var(--primary-color);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.25s ease;
    z-index: 99999;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav ul.nav-menu > li.nav-item:hover > ul.sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 子菜单项目 */
.main-nav ul.nav-menu > li.nav-item > ul.sub-menu li {
    border-bottom: 1px solid #eee;
}

.main-nav ul.nav-menu > li.nav-item > ul.sub-menu li:last-child {
    border-bottom: none;
}

.main-nav ul.nav-menu > li.nav-item > ul.sub-menu li a.submenu-link,
.main-nav ul.nav-menu > li.nav-item > ul.sub-menu li a {
    display: block;
    padding: 12px 20px;
    color: var(--text-dark);
    font-size: 14px;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.main-nav ul.nav-menu > li.nav-item > ul.sub-menu li a:hover,
.main-nav ul.nav-menu > li.nav-item > ul.sub-menu li.current-menu-item a {
    background: var(--bg-gray);
    color: var(--primary-color);
    padding-left: 25px;
}

/* 移动端响应式 */
@media (max-width: 1024px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        box-shadow: 0 4px 20px rgba(0,0,0,0.15);
        padding: 15px;
        z-index: 99;
    }
    
    .main-nav.active {
        display: block;
    }
    
    .main-nav ul.nav-menu {
        flex-direction: column;
        gap: 0;
    }
    
    .main-nav ul.nav-menu > li.nav-item > a.nav-link {
        padding: 12px 15px;
        border-bottom: 1px solid #eee;
    }
    
    .main-nav ul.nav-menu > li.nav-item > ul.sub-menu {
        position: static;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        padding-left: 20px;
        background: var(--bg-gray);
        border-top: none;
    }
    
    .main-nav ul.nav-menu > li.nav-item > ul.sub-menu li a {
        padding: 10px 15px;
    }
    
    .menu-toggle {
        display: block;
    }
}

/* ====================================
   页面横幅样式
   ==================================== */
.page-banner {
    height: 350px;
    position: relative;
    margin-top: 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 首页轮播特殊处理 */
.home .hero-section {
    margin-top: 0;
}

/* 旧横幅样式已移除，使用新的.page-banner样式 */

/* 旧面包屑样式已移除 */

/* 响应式样式已整合到.page-banner中 */

/* ====================================
   页面内容区域优化
   ==================================== */
.page-content {
    margin-top: 0;
    padding: 50px 0;
    min-height: 60vh;
}

.category-intro {
    background: var(--bg-gray);
    padding: 25px 30px;
    border-radius: var(--radius-md);
    margin-bottom: 40px;
    border-left: 4px solid var(--primary-color);
}

.category-intro p {
    font-size: 15px;
    color: var(--text-medium);
    line-height: 1.8;
    margin: 0;
}

/* 产品卡片优化 */
.product-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-card .product-thumb-link {
    display: block;
    overflow: hidden;
}

.product-card .product-thumb {
    aspect-ratio: 1 / 1;
    background: #f8f8f8;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-card .product-thumb img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
    transition: transform var(--transition-normal);
}

.product-card:hover .product-thumb img {
    transform: scale(1.08);
}

.product-card .product-info {
    padding: 20px;
}

.product-card .product-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-dark);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.product-card .product-title a {
    color: inherit;
}

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

.product-card .product-excerpt {
    font-size: 14px;
    color: var(--text-medium);
    margin-bottom: 15px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card .product-footer {
    display: flex;
    justify-content: flex-end;
}

.product-card .btn-view {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--primary-color);
    color: #fff;
    border-radius: var(--radius-sm);
    font-size: 13px;
    transition: all var(--transition-fast);
}

.product-card .btn-view:hover {
    background: var(--primary-dark);
    color: #fff;
}

.product-card .btn-view i {
    font-size: 12px;
    transition: transform var(--transition-fast);
}

.product-card .btn-view:hover i {
    transform: translateX(3px);
}

/* 无结果提示 */
.no-results {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-medium);
}

.no-results p {
    font-size: 16px;
}

.no-results i {
    font-size: 48px;
    color: var(--text-light);
    margin-bottom: 15px;
    display: block;
}

/* 筛选按钮组 */
.products-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 40px;
}

.products-filter .filter-btn {
    padding: 10px 20px;
    background: var(--bg-white);
    color: var(--text-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.products-filter .filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.products-filter .filter-btn.active {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

/* 产品网格布局 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
}

/* ================================
   页脚样式 (Footer) - 整改版
   ================================ */
.site-footer {
    background: #1a1a1a;
    color: #fff;
    padding-top: 50px;
}

.site-footer .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 顶部区域 - 五列布局 */
.footer-top {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1fr 1.4fr;
    gap: 35px;
    padding-bottom: 35px;
    border-bottom: 1px solid #2a2a2a;
}

/* 关于我们区块 */
.footer-about h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #fff;
}

.footer-about p {
    font-size: 13px;
    line-height: 1.7;
    color: #888;
    margin-bottom: 8px;
}

/* 社交图标 */
.footer-social {
    display: flex;
    gap: 10px;
    margin-top: 12px;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: #2a2a2a;
    border-radius: 50%;
    color: #aaa;
    transition: all 0.3s ease;
    font-size: 14px;
}

.footer-social a:hover {
    background: #0066b3;
    color: #fff;
    transform: translateY(-2px);
}

.footer-social a.wechat:hover {
    background: #07c160;
}

/* 链接区块公共样式 */
.footer-links h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #fff;
    position: relative;
    padding-bottom: 8px;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 25px;
    height: 2px;
    background: #0066b3;
}

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

.footer-links ul li {
    margin-bottom: 8px;
}

.footer-links ul li a {
    color: #888;
    font-size: 13px;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-links ul li a:hover {
    color: #ffd700;
    padding-left: 5px;
}

/* 联系区块 */
.footer-contact h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #fff;
    position: relative;
    padding-bottom: 8px;
}

.footer-contact h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 25px;
    height: 2px;
    background: #0066b3;
}

.contact-section {
    margin-bottom: 12px;
    padding: 12px;
    background: #222;
    border-radius: 6px;
    border-left: 3px solid #0066b3;
}

.contact-section h5 {
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 8px;
}

.contact-section h5 i {
    color: #0066b3;
    margin-right: 5px;
}

.contact-section p {
    font-size: 12px;
    color: #888;
    line-height: 1.6;
    margin-bottom: 4px;
    display: flex;
    align-items: flex-start;
}

.contact-section p i {
    color: #666;
    margin-right: 6px;
    margin-top: 2px;
    width: 12px;
}

.footer-contact > p {
    font-size: 12px;
    color: #888;
    line-height: 1.6;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
}

.footer-contact > p i {
    color: #0066b3;
    margin-right: 8px;
}

/* 底部区域 */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-bottom-content {
    font-size: 12px;
    color: #666;
}

.footer-bottom-content p {
    margin-bottom: 3px;
    line-height: 1.6;
}

.footer-bottom-content a {
    color: #888;
}

.footer-bottom-content a:hover {
    color: #ffd700;
}

.footer-hotline {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: #888;
}

.footer-hotline span {
    color: #666;
}

.footer-hotline a {
    color: #ffd700;
    font-size: 16px;
    font-weight: bold;
}

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

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 42px;
    height: 42px;
    background: #0066b3;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 4px 15px rgba(0,102,179,0.4);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: #005091;
    transform: translateY(-3px);
}

/* 响应式布局 */
@media (max-width: 1024px) {
    .footer-top {
        grid-template-columns: repeat(3, 1fr);
        gap: 25px;
    }
    
    .footer-about {
        grid-column: span 3;
    }
}

@media (max-width: 768px) {
    .footer-top {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .footer-about {
        grid-column: span 2;
    }
    
    .footer-contact {
        grid-column: span 2;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .back-to-top {
        bottom: 15px;
        right: 15px;
        width: 38px;
        height: 38px;
    }
}

@media (max-width: 480px) {
    .footer-top {
        grid-template-columns: 1fr;
    }
    
    .footer-about,
    .footer-links,
    .footer-contact {
        grid-column: span 1;
    }
}

/* ================================
   首页新增样式 - 瑞泰风排版
   ================================ */

/* 区块头部通用样式 */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}
.section-header .section-title {
    font-size: 32px;
    color: var(--text-dark);
    margin-bottom: 12px;
    font-weight: 600;
}
.section-header .section-subtitle {
    font-size: 16px;
    color: var(--text-medium);
}
.section-header.light .section-title {
    color: var(--bg-white);
}
.section-header.light .section-subtitle {
    color: rgba(255,255,255,0.8);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 4px;
    transition: all 0.3s ease;
    text-decoration: none;
    cursor: pointer;
}
.btn-primary {
    background: var(--primary-color);
    color: var(--bg-white);
}
.btn-primary:hover {
    background: var(--primary-dark);
    color: var(--bg-white);
}
.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}
.btn-outline:hover {
    background: var(--primary-color);
    color: var(--bg-white);
}
.btn-block {
    display: block;
    width: 100%;
}

/* 产品分类展示 */
.category-section {
    padding: 80px 0;
    background: var(--bg-white);
}
.category-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}
.category-tab {
    padding: 10px 24px;
    font-size: 15px;
    color: var(--text-dark);
    background: var(--bg-gray);
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
}
.category-tab:hover,
.category-tab.active {
    background: var(--primary-color);
    color: var(--bg-white);
}
.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.category-card {
    background: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}
.category-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.category-thumb {
    position: relative;
    height: 200px;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.category-thumb img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
    transition: transform 0.3s ease;
}
.category-card:hover .category-thumb img {
    transform: scale(1.08);
}
.category-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,102,179,0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.category-card:hover .category-overlay {
    opacity: 1;
}
.view-more {
    color: var(--bg-white);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 20px;
    border: 2px solid var(--bg-white);
    border-radius: 25px;
}
.category-info {
    padding: 20px;
    text-align: center;
}
.category-info h3 {
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 8px;
}
.category-info p {
    font-size: 14px;
    color: var(--text-medium);
}

/* 解决方案展示 */
.solution-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #0066b3 0%, #004c99 100%);
}
.solution-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.solution-card {
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(255,255,255,0.2);
}
.solution-card:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-5px);
}
.solution-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: var(--bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--primary-color);
}
.solution-card h3 {
    font-size: 16px;
    color: var(--bg-white);
    margin-bottom: 8px;
}
.solution-card p {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
}

/* 案例展示 */
.case-section {
    padding: 80px 0;
    background: var(--bg-gray);
}
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}
.case-card {
    background: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}
.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.case-thumb {
    height: 220px;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.case-thumb img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    transition: transform 0.3s ease;
}
.case-card:hover .case-thumb img {
    transform: scale(1.05);
}
.case-info {
    padding: 20px;
}
.case-info h3 {
    font-size: 16px;
    color: var(--text-dark);
    margin-bottom: 8px;
}
.case-info p {
    font-size: 14px;
    color: var(--text-medium);
}

/* 合作伙伴 */
.partners-section {
    text-align: center;
    margin: 48px 0;
    padding: 32px;
    background: var(--bg-white);
    border-radius: 8px;
}
.partners-section h3 {
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 24px;
}
.partners-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
}
.partner-item {
    padding: 12px 28px;
    background: var(--bg-gray);
    border-radius: 4px;
    font-size: 15px;
    color: var(--text-dark);
    transition: all 0.3s ease;
}
.partner-item:hover {
    background: var(--primary-color);
    color: var(--bg-white);
}

/* 统计区域 */
.stats-section {
    padding: 60px 0;
    background: var(--primary-color);
}
.stats-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    padding: 0 60px;
}
.stat-item {
    text-align: center;
    flex: 0 0 auto;
    padding: 0 40px;
}
/* 中间两个数字间距小 */
.stat-item:nth-child(2) {
    padding: 0 80px;
}
.stat-item:nth-child(3) {
    padding: 0 80px;
}
.stat-number {
    display: block;
    font-size: 42px;
    font-weight: 700;
    color: var(--bg-white);
    margin-bottom: 8px;
}
.stat-label {
    display: block;
    font-size: 14px;
    color: rgba(255,255,255,0.85);
}

/* 新闻动态 */
.news-section {
    padding: 80px 0;
    background: var(--bg-white);
}
.news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.news-card {
    background: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}
.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.news-thumb {
    height: 160px;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.news-thumb img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    transition: transform 0.3s ease;
}
.news-card:hover .news-thumb img {
    transform: scale(1.05);
}
.news-info {
    padding: 20px;
}
.news-date {
    display: inline-block;
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 12px;
}
.news-info h3 {
    font-size: 16px;
    color: var(--text-dark);
    margin-bottom: 12px;
    line-height: 1.5;
}
.news-info h3 a {
    color: inherit;
}
.news-info h3 a:hover {
    color: var(--primary-color);
}
.news-info p {
    font-size: 14px;
    color: var(--text-medium);
    line-height: 1.8;
}

/* 联系方式区域 */
.contact-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 100%);
}
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}
.contact-info-box {
    background: #333333;
    padding: 48px;
    border-radius: 12px;
    color: var(--bg-white);
}
.contact-info-box h2 {
    font-size: 28px;
    margin-bottom: 12px;
}
.contact-info-box > p {
    font-size: 15px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 32px;
}
.contact-info-box .contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 24px;
}
.contact-info-box .contact-item i {
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 16px;
    font-size: 20px;
    flex-shrink: 0;
}
.contact-info-box .contact-item strong {
    display: block;
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 4px;
}
.contact-info-box .contact-item span {
    font-size: 18px;
    font-weight: 500;
}
.contact-form-box {
    background: var(--bg-white);
    padding: 48px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.contact-form-box h3 {
    font-size: 22px;
    color: var(--text-dark);
    margin-bottom: 32px;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* 轮播区域增强 */
.hero-section {
    margin-top: 0;
    position: relative;
}
.hero-content {
    text-align: left;
    background: linear-gradient(135deg, rgba(10,92,54,0.88) 0%, rgba(10,92,54,0.75) 100%);
    padding: 50px 60px;
    border-radius: 16px;
    position: absolute;
    top: 50%;
    left: 8%;
    transform: translateY(-50%);
    z-index: 10;
    max-width: 600px;
}
.hero-content h1 {
    font-size: 42px;
    font-weight: 700;
    color: var(--bg-white);
    margin-bottom: 14px;
    line-height: 1.3;
    letter-spacing: 4px;
}
.hero-subtitle {
    font-size: 18px;
    color: rgba(255,255,255,0.95);
    margin-bottom: 28px;
    line-height: 1.8;
    letter-spacing: 2px;
}
.hero-cta {
    display: flex;
    gap: 16px;
}
.hero-cta .btn {
    padding: 14px 32px;
    font-size: 15px;
}
.hero-cta .btn-outline {
    border-color: var(--bg-white);
    color: var(--bg-white);
}
.hero-cta .btn-outline:hover {
    background: var(--bg-white);
    color: var(--primary-color);
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .category-grid,
    .solution-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .news-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1024px) {
    .category-grid,
    .solution-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .case-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .section-header .section-title {
        font-size: 26px;
    }
    .category-tabs {
        flex-wrap: wrap;
    }
    .category-grid,
    .solution-grid,
    .case-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .stat-number {
        font-size: 32px;
    }
    .hero-content h1 {
        font-size: 32px;
    }
    .hero-subtitle {
        font-size: 16px;
    }
    .hero-cta {
        flex-direction: column;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .contact-info-box,
    .contact-form-box {
        padding: 32px;
    }
}

/* ====================================
   首页优化新样式
   ==================================== */

/* 案例分类标签 */
.cases-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 40px;
}

.filter-tag {
    padding: 8px 20px;
    background: var(--bg-white);
    color: var(--text-dark);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

/* 案例卡片优化 */
.case-card .case-thumb {
    position: relative;
    overflow: hidden;
}

.case-card .case-thumb img {
    transition: transform 0.5s ease;
}

.case-card:hover .case-thumb img {
    transform: scale(1.1);
}

.case-card .case-overlay {
    transition: all 0.3s ease;
}

.case-card:hover .case-overlay {
    background: linear-gradient(transparent, rgba(0,102,179,0.95));
}

/* 统计数字动画 */
.stat-item {
    text-align: center;
    padding: 30px 20px;
}

.stat-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    background: rgba(255,255,255,0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon i {
    font-size: 24px;
    color: #ffd700;
}

.stat-num {
    font-size: 48px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 5px;
    line-height: 1.2;
}

.stat-item p {
    font-size: 16px;
    color: rgba(255,255,255,0.9);
}

/* 统计区域响应式 */
@media (max-width: 768px) {
    .stat-num {
        font-size: 36px;
    }
    .stats-grid {
        justify-content: space-between;
        padding: 0 10px;
    }
    .stat-item {
        flex: 0 0 calc(50% - 20px);
        min-width: auto;
        max-width: none;
        margin: 0;
        padding: 15px 5px;
    }
    .stat-item:nth-child(1),
    .stat-item:nth-child(2),
    .stat-item:nth-child(3),
    .stat-item:nth-child(4) {
        margin-left: 0;
        margin-right: 0;
    }
}

/* 优势卡片悬停效果 */
.feature-card {
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card .feature-icon {
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    box-shadow: 0 10px 30px rgba(0,102,179,0.3);
}

/* 新闻卡片样式 */
.news-card .news-content {
    padding: 20px;
}

.news-card .news-content h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card .news-content h3 a {
    color: var(--text-dark);
    transition: color 0.3s ease;
}

.news-card .news-content h3 a:hover {
    color: var(--primary-color);
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--primary-color);
    font-size: 14px;
    margin-top: 10px;
    transition: all 0.3s ease;
}

.news-link:hover {
    color: var(--primary-dark);
    gap: 8px;
}

/* 按钮样式 */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 30px;
    background: var(--primary-color);
    color: #fff;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0,102,179,0.3);
}

.btn-primary i {
    transition: transform 0.3s ease;
}

.btn-primary:hover i {
    transform: translateX(3px);
}

/* ====================================
   首页联系模块样式
   ==================================== */
.contact-section-home {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
}

.contact-section-home .contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info-box {
    padding: 40px;
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}

.contact-info-box h3 {
    font-size: 28px;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.contact-subtitle {
    font-size: 15px;
    color: var(--text-medium);
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--primary-color);
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 20px;
    color: #fff;
}

.contact-text h4 {
    font-size: 14px;
    color: var(--text-medium);
    font-weight: 400;
    margin-bottom: 5px;
}

.contact-text p {
    font-size: 16px;
    color: var(--text-dark);
    font-weight: 500;
}

/* 联系表单样式 */
.contact-form-box {
    padding: 40px;
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}

.contact-form-box h3 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 30px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.contact-form-box .form-group {
    margin-bottom: 20px;
}

.contact-form-box .form-group label {
    display: block;
    font-size: 14px;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-weight: 500;
}

.contact-form-box .form-group label span {
    color: #f00;
}

.contact-form-box .form-group input,
.contact-form-box .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.contact-form-box .form-group input:focus,
.contact-form-box .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0,102,179,0.1);
}

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

.btn-submit {
    width: 100%;
    padding: 14px 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-submit:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,102,179,0.3);
}

.btn-submit i {
    font-size: 14px;
}

/* 联系区域响应式 */
@media (max-width: 1024px) {
    .contact-section-home .contact-wrapper {
        grid-template-columns: 1fr;
gap: 40px;
    }
}

@media (max-width: 768px) {
    .contact-section-home {
        padding: 50px 0;
    }
    .contact-info-box,
    .contact-form-box {
        padding: 30px 25px;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .contact-info-box h3 {
        font-size: 24px;
    }
    .contact-form-box h3 {
        font-size: 20px;
    }
}

/* ====================================
   新闻动态页面样式 - 参照rtfans.com排版
   ==================================== */

/* 页面内容区域 */
.news-archive {
    padding: 50px 0 60px;
}

/* 页面头部 */
.archive-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 2px solid var(--primary-color);
}

.archive-header .archive-title {
    font-size: 32px;
    color: var(--text-dark);
    font-weight: 600;
    margin-bottom: 10px;
}

.archive-header .archive-desc {
    font-size: 16px;
    color: var(--text-medium);
}

/* 分类筛选按钮 */
.news-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.news-filter .filter-btn {
    padding: 10px 20px;
    background: var(--bg-white);
    color: var(--text-dark);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.news-filter .filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.news-filter .filter-btn i {
    font-size: 12px;
}

/* 文章数量 */
.news-count {
    text-align: right;
    margin-bottom: 25px;
    font-size: 14px;
    color: var(--text-medium);
}

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

/* 新闻列表 - 大卡片布局（头条推荐） */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin-bottom: 40px;
}

/* 新闻条目 */
.news-item {
    display: flex;
    background: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.news-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

/* 新闻缩略图 */
.news-item .news-thumb {
    width: 300px;
    height: 200px;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    background: #f5f5f5;
}

.news-item .news-thumb a {
    display: block;
    width: 100%;
    height: 100%;
}

.news-item .news-thumb img {
    width: 100%;
    height: 100%;
    
    transition: transform 0.4s ease;
}

.news-item:hover .news-thumb img {
    transform: scale(1.08);
}

/* 新闻分类标签 */
.news-item .news-cat {
    position: absolute;
    top: 15px;
    left: 15px;
    padding: 5px 12px;
    background: #e74c3c;
    color: #fff;
    font-size: 12px;
    border-radius: 3px;
    z-index: 2;
}

.news-item .news-cat.tag-recommend {
    background: #e74c3c;
}

.news-item .news-cat.tag-industry {
    background: #3498db;
}

.news-item .news-cat.tag-company {
    background: #27ae60;
}

/* 新闻信息区域 */
.news-item .news-info {
    flex: 1;
    padding: 25px 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.news-item .news-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-item .news-title a {
    color: var(--text-dark);
    transition: color 0.3s ease;
}

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

.news-item .news-excerpt {
    font-size: 14px;
    color: var(--text-medium);
    line-height: 1.8;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 新闻元信息 */
.news-item .news-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 13px;
    color: var(--text-light);
}

.news-item .news-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.news-item .news-meta i {
    font-size: 12px;
    color: var(--primary-color);
}

.news-item .news-meta .meta-date {
    color: #888;
}

.news-item .news-meta .meta-author {
    color: #888;
}

.news-item .read-more {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--primary-color);
    font-size: 14px;
    margin-left: auto;
    transition: all 0.3s ease;
}

.news-item .read-more:hover {
    color: var(--primary-dark);
    gap: 8px;
}

.news-item .read-more i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

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

/* 无结果 */
.no-results {
    text-align: center;
    padding: 80px 20px;
    background: var(--bg-white);
    border-radius: 8px;
}

.no-results i {
    font-size: 60px;
    color: #ddd;
    margin-bottom: 20px;
    display: block;
}

.no-results p {
    font-size: 18px;
    color: var(--text-medium);
}

/* 分页样式 - 参照rtfans.com */
.news-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid #eee;
}

.news-pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    background: var(--bg-white);
    border: 1px solid #ddd;
    border-radius: 4px;
    color: var(--text-dark);
    font-size: 14px;
    transition: all 0.3s ease;
    text-decoration: none;
}

.news-pagination .page-numbers:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.news-pagination .page-numbers.current {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
    font-weight: 600;
}

.news-pagination .page-numbers.dots {
    border: none;
    background: none;
    color: var(--text-light);
    cursor: default;
}

.news-pagination .page-numbers.prev,
.news-pagination .page-numbers.next {
    padding: 0 15px;
    font-size: 13px;
}

/* 底部CTA区域 */
.cta-section {
    background: linear-gradient(135deg, #0066b3 0%, #004c99 100%);
    padding: 60px 0;
    margin-top: 50px;
}

.cta-section .cta-content {
    text-align: center;
}

.cta-section h2 {
    font-size: 28px;
    color: #fff;
    margin-bottom: 15px;
}

.cta-section p {
    font-size: 16px;
    color: rgba(255,255,255,0.85);
    margin-bottom: 30px;
}

.cta-section .cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.cta-section .btn-cta-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 30px;
    background: #fff;
    color: #0066b3;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    text-decoration: none;
}

.cta-section .btn-cta-primary:hover {
    background: #ffd700;
    color: #1a1a1a;
    transform: translateY(-2px);
}

.cta-section .btn-cta-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 30px;
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255,255,255,0.5);
    border-radius: 4px;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    text-decoration: none;
}

.cta-section .btn-cta-secondary:hover {
    background: rgba(255,255,255,0.1);
    border-color: #fff;
    color: #fff;
}

/* 响应式新闻页面 */
@media (max-width: 1024px) {
    .news-item .news-thumb {
        width: 250px;
        height: 180px;
    }
    
    .news-item .news-info {
        padding: 20px 25px;
    }
    
    .news-item .news-title {
        font-size: 18px;
    }
}

@media (max-width: 768px) {
    .news-archive {
        padding: 30px 0 40px;
    }
    
    .archive-header {
        margin-bottom: 30px;
        padding-bottom: 20px;
    }
    
    .archive-header .archive-title {
        font-size: 26px;
    }
    
    .news-filter {
        gap: 8px;
    }
    
    .news-filter .filter-btn {
        padding: 8px 15px;
        font-size: 13px;
    }
    
    .news-item {
        flex-direction: column;
    }
    
    .news-item .news-thumb {
        width: 100%;
        height: 200px;
    }
    
    .news-item .news-info {
        padding: 20px;
    }
    
    .news-item .news-title {
        font-size: 17px;
    }
    
    .news-item .news-excerpt {
        -webkit-line-clamp: 2;
    }
    
    .news-item .news-meta {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .news-item .read-more {
        width: 100%;
        justify-content: center;
        margin-top: 10px;
        padding-top: 10px;
        border-top: 1px dashed #eee;
    }
    
    .cta-section {
        padding: 40px 0;
    }
    
    .cta-section h2 {
        font-size: 22px;
    }
    
    .cta-section .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-section .btn-cta-primary,
    .cta-section .btn-cta-secondary {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .archive-header .archive-title {
        font-size: 22px;
    }
    
    .news-count {
        text-align: center;
        margin-bottom: 20px;
    }
    
    .news-item .news-thumb {
        height: 180px;
    }
}

/* ====================================
   询价表单样式
   ==================================== */

.inquiry-section {
    margin-top: 60px;
    padding: 50px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
}

.inquiry-header {
    text-align: center;
    margin-bottom: 35px;
}

.inquiry-header h2 {
    font-size: 26px;
    color: var(--text-dark);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.inquiry-header h2 i {
    color: var(--primary-color);
}

.inquiry-header p {
    font-size: 15px;
    color: var(--text-medium);
}

.inquiry-form {
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg-white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}

.inquiry-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.inquiry-form .form-group {
    margin-bottom: 20px;
}

.inquiry-form .form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-weight: 500;
}

.inquiry-form .form-group label i {
    color: var(--primary-color);
}

.inquiry-form .form-group input,
.inquiry-form .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.inquiry-form .form-group input:focus,
.inquiry-form .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0,102,179,0.1);
}

.inquiry-form .form-group input::placeholder,
.inquiry-form .form-group textarea::placeholder {
    color: #aaa;
}

.inquiry-form .form-submit {
    text-align: center;
    margin-top: 25px;
}

.inquiry-form .btn-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.inquiry-form .btn-submit:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,102,179,0.3);
}

/* 产品规格样式 */
.product-specs {
    background: var(--bg-gray);
    padding: 30px;
    border-radius: 10px;
}

.product-specs h3 {
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--primary-color);
}

.product-specs h3 i {
    color: var(--primary-color);
}

.spec-table {
    width: 100%;
    background: var(--bg-white);
    border-radius: 6px;
    overflow: hidden;
}

.spec-table tr {
    border-bottom: 1px solid #eee;
}

.spec-table tr:last-child {
    border-bottom: none;
}

.spec-table th {
    padding: 14px 15px;
    font-weight: 500;
    color: var(--text-medium);
    text-align: left;
    width: 35%;
    background: #f8f8f8;
    font-size: 14px;
}

.spec-table td {
    padding: 14px 15px;
    color: var(--text-dark);
    font-size: 14px;
}

.spec-inquiry {
    margin-top: 25px;
    text-align: center;
}

.spec-inquiry .btn-inquiry {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 35px;
    background: var(--primary-color);
    color: #fff;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.spec-inquiry .btn-inquiry:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0,102,179,0.3);
}

@media (max-width: 768px) {
    .inquiry-section {
        padding: 30px 20px;
    }
    
    .inquiry-form {
        padding: 25px 20px;
    }
    
    .inquiry-form .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .inquiry-header h2 {
        font-size: 22px;
    }
}

/* ====================================
   文章详情页样式
   ==================================== */

/* 文章头部 */
.article-header {
    text-align: center;
    padding: 30px 0 25px;
    border-bottom: 1px solid #eee;
    margin-bottom: 30px;
}

.article-category {
    margin-bottom: 15px;
}

.article-category .cat-tag {
    display: inline-block;
    padding: 5px 15px;
    background: #e74c3c;
    color: #fff;
    font-size: 12px;
    border-radius: 3px;
}

.article-title {
    font-size: 32px;
    color: var(--text-dark);
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 20px;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 30px;
    font-size: 14px;
    color: #888;
}

.article-meta .meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-meta .meta-item i {
    color: var(--primary-color);
}

/* 文章标签 */
.article-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    padding: 25px 0;
    border-top: 1px dashed #eee;
    border-bottom: 1px dashed #eee;
    margin-top: 30px;
}

.article-tags .tags-label {
    font-size: 14px;
    color: var(--text-medium);
    display: flex;
    align-items: center;
    gap: 5px;
}

.article-tags .tags-label i {
    color: var(--primary-color);
}

.article-tags .tag-item {
    display: inline-block;
    padding: 5px 12px;
    background: var(--bg-gray);
    color: var(--text-medium);
    font-size: 13px;
    border-radius: 3px;
    transition: all 0.3s ease;
}

.article-tags .tag-item:hover {
    background: var(--primary-color);
    color: #fff;
}

/* 文章导航 */
.article-nav {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding: 25px 0;
    margin: 20px 0 30px;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}

.article-nav > div {
    flex: 1;
    font-size: 14px;
}

.article-nav > div span {
    color: #888;
}

.article-nav > div a {
    color: var(--text-dark);
    transition: color 0.3s ease;
}

.article-nav > div a:hover {
    color: var(--primary-color);
}

.nav-prev {
    padding-right: 20px;
    border-right: 1px solid #eee;
}

.nav-next {
    text-align: right;
    padding-left: 20px;
}

/* 相关推荐 */
.related-posts {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 2px solid var(--primary-color);
}

.related-title {
    font-size: 22px;
    color: var(--text-dark);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.related-title i {
    color: var(--primary-color);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.related-item {
    background: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.related-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.related-item a {
    display: block;
}

.related-thumb {
    width: 100%;
    height: 160px;
    overflow: hidden;
    background: #f5f5f5;
}

.related-thumb img {
    width: 100%;
    height: 100%;
    
    transition: transform 0.4s ease;
}

.related-item:hover .related-thumb img {
    transform: scale(1.08);
}

.related-info {
    padding: 15px;
}

.related-info h3 {
    font-size: 15px;
    color: var(--text-dark);
    margin-bottom: 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-info .related-date {
    font-size: 12px;
    color: #888;
    display: flex;
    align-items: center;
    gap: 5px;
}

.related-info .related-date i {
    color: var(--primary-color);
}

.no-related {
    grid-column: span 3;
    text-align: center;
    padding: 40px;
    color: var(--text-medium);
    font-size: 15px;
}

/* 响应式文章页 */
@media (max-width: 1024px) {
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .no-related {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .article-title {
        font-size: 24px;
    }
    
    .article-meta {
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .article-nav {
        flex-direction: column;
    }
    
    .nav-prev {
        padding-right: 0;
        border-right: none;
        padding-bottom: 15px;
        border-bottom: 1px solid #eee;
    }
    
    .nav-next {
        padding-left: 0;
        text-align: left;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
    }
    
    .no-related {
        grid-column: span 1;
    }
}

/* ====================================
   全局动画优化
   ==================================== */
[data-aos] {
    pointer-events: auto !important;
}

/* 平滑滚动优化 */
html {
    scroll-behavior: smooth;
}

/* 图片加载动画 */
img {
    transition: opacity 0.3s ease;
}

img[src] {
    opacity: 1;
}

/* 卡片加载动画 */
.product-card,
.case-card,
.news-card,
.feature-card {
    opacity: 1;
    transform: translateY(0);
}

/* 减少动画（无障碍） */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ====================================
   案例详情页
   ==================================== */
.case-detail-featured {
    margin-bottom: 30px;
    border-radius: 8px;
    overflow: hidden;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.case-detail-featured img {
    max-width: 100%;
    max-height: 500px;
    object-fit: contain;
}

/* 列表页头部样式 */
.archive-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid #eee;
}

.archive-title {
    font-size: 28px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.archive-desc {
    font-size: 16px;
    color: #666;
}

/* 案例网格 - archive页面 */
.cases-grid-archive {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

@media (max-width: 1024px) {
    .cases-grid-archive {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .cases-grid-archive {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* 案例卡片 - archive */
.case-card-archive {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: all 0.3s;
}

.case-card-archive:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.case-thumb-archive {
    position: relative;
    height: 220px;
    background: #f5f5f5;
    overflow: hidden;
}

.case-thumb-archive img {
    width: 100%;
    height: 100%;
    
    transition: transform 0.3s;
}

.case-card-archive:hover .case-thumb-archive img {
    transform: scale(1.1);
}

.case-overlay-archive {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,102,179,0.9);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.3s;
}

.case-card-archive:hover .case-overlay-archive {
    opacity: 1;
}

.case-category {
    margin-bottom: 15px;
}

.case-category .cat-tag {
    background: #ffd700;
    color: #333;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
}

.case-hover-content h3 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 10px;
    text-align: center;
}

.case-hover-content p {
    color: rgba(255,255,255,0.9);
    font-size: 14px;
    text-align: center;
    margin-bottom: 15px;
    line-height: 1.6;
}

.view-more {
    color: #ffd700;
    font-size: 14px;
}

.view-more i {
    margin-left: 5px;
    transition: transform 0.3s;
}

.case-card-archive:hover .view-more i {
    transform: translateX(5px);
}

/* 新闻网格 */
.news-grid-archive {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

@media (max-width: 1024px) {
    .news-grid-archive {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.news-card-archive {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: all 0.3s;
}

.news-card-archive:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.news-thumb-archive {
    height: 180px;
    background: #f5f5f5;
    overflow: hidden;
    position: relative;
}

.news-thumb-archive img {
    width: 100%;
    height: 100%;
    
    transition: transform 0.3s;
}

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

.news-date-archive {
    position: absolute;
    top: 10px;
    left: 10px;
    background: #0066b3;
    color: #fff;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 12px;
}

.news-content-archive {
    padding: 20px;
}

.news-content-archive h3 {
    font-size: 16px;
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-content-archive h3 a {
    color: #333;
}

.news-content-archive h3 a:hover {
    color: #0066b3;
}

.news-excerpt-archive {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 列表页筛选按钮 */
.products-filter,
.cases-filter-archive,
.news-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
    padding: 15px;
    background: #f8f8f8;
    border-radius: 8px;
}

.products-filter .filter-btn,
.cases-filter-archive .filter-btn,
.news-filter .filter-btn {
    padding: 8px 20px;
    background: #fff;
    color: #333;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    transition: all 0.3s;
}

.products-filter .filter-btn:hover,
.cases-filter-archive .filter-btn:hover,
.news-filter .filter-btn:hover {
    border-color: #0066b3;
    color: #0066b3;
}

.products-filter .filter-btn.active,
.cases-filter-archive .filter-btn.active,
.news-filter .filter-btn.active {
    background: #0066b3;
    color: #fff;
    border-color: #0066b3;
}

/* 产品/案例数量统计 */
.products-count,
.cases-count {
    text-align: center;
    margin-bottom: 25px;
    font-size: 14px;
    color: #666;
}

.products-count strong,
.cases-count strong {
    color: #0066b3;
    font-weight: 600;
}

/* 产品网格 - archive页面 */
.archive-products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

@media (max-width: 1024px) {
    .archive-products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .archive-products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .product-detail-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .archive-products-grid {
        grid-template-columns: 1fr;
    }
}

/* 询价表单 */
.contact-form-section {
    margin-top: 60px;
    padding: 40px;
    background: #f8f8f8;
    border-radius: 8px;
}

.contact-form-section h2 {
    text-align: center;
    font-size: 24px;
    margin-bottom: 30px;
    color: #333;
}

.inquiry-form {
    max-width: 600px;
    margin: 0 auto;
}

.inquiry-form input,
.inquiry-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin-bottom: 15px;
    font-size: 14px;
}

.inquiry-form input:focus,
.inquiry-form textarea:focus {
    outline: none;
    border-color: #0066b3;
}

.inquiry-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

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

.inquiry-form button {
    display: block;
    width: 100%;
    padding: 14px;
    background: #0066b3;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
}

.inquiry-form button:hover {
    background: #005091;
}

/* ====================================
   联系我们页面样式
   ==================================== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 40px;
}

@media (max-width: 768px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* 联系表单 */
.contact-form {
    background: #f8f8f8;
    padding: 40px;
    border-radius: 8px;
}

.contact-form h3,
.contact-info h3 {
    font-size: 22px;
    margin-bottom: 25px;
    color: #333;
    border-bottom: 2px solid #0066b3;
    padding-bottom: 12px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    color: #666;
    margin-bottom: 8px;
}

.form-group label span {
    color: #e74c3c;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0066b3;
}

.form-submit {
    margin-top: 25px;
}

.form-submit .hero-btn {
    width: 100%;
    padding: 14px;
    font-size: 16px;
    text-align: center;
}

/* 联系信息 */
.contact-info {
    padding: 20px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
    padding: 20px;
    background: #f8f8f8;
    border-radius: 8px;
    border-left: 4px solid #0066b3;
}

.contact-info-item i {
    font-size: 28px;
    color: #0066b3;
    margin-right: 20px;
    width: 40px;
    text-align: center;
}

.contact-info-item h4 {
    font-size: 14px;
    color: #888;
    margin-bottom: 5px;
    font-weight: normal;
}

.contact-info-item p {
    font-size: 18px;
    color: #333;
    font-weight: 600;
}

/* ====================================
   关于我们页面样式
   ==================================== */
.about-hero {
    margin-bottom: 40px;
    border-radius: 8px;
    overflow: hidden;
}

.about-hero img {
    width: 100%;
    height: auto;
}

.about-content {
    max-width: 900px;
    margin: 0 auto 50px;
}

.about-content p {
    font-size: 16px;
    line-height: 2;
    color: #333;
    margin-bottom: 20px;
}

.about-features {
    margin-top: 60px;
    padding-top: 60px;
    border-top: 1px solid #eee;
}

.about-features h3 {
    text-align: center;
    font-size: 28px;
    margin-bottom: 40px;
    color: #333;
}

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

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

.feature-item {
    text-align: center;
    padding: 30px 20px;
    background: #f8f8f8;
    border-radius: 8px;
    transition: all 0.3s;
}

.feature-item:hover {
    background: #0066b3;
    transform: translateY(-5px);
}

.feature-item .feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: #0066b3;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-item:hover .feature-icon {
    background: #fff;
}

.feature-item .feature-icon i {
    font-size: 28px;
    color: #fff;
}

.feature-item:hover .feature-icon i {
    color: #0066b3;
}

.feature-item h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #333;
}

.feature-item:hover h3,
.feature-item:hover p {
    color: #fff;
}

.feature-item p {
    font-size: 14px;
    color: #666;
}

/* ================================
   强制覆盖 - 确保rtfans.com样式生效
   ================================ */
/* 白色导航背景 */
.site-header,
.site-header .header-main,
header.site-header .header-main,
#page .site-header .header-main {
    background: #ffffff !important;
    border-bottom: 3px solid #e53935 !important;
}

/* 导航菜单深灰色文字 */
.nav-menu li a,
.nav-menu li a.nav-link,
.main-nav .nav-menu li a,
.main-nav ul li a,
.site-header .main-nav ul li a,
.site-header .nav-menu > li > a {
    color: #333333 !important;
}

/* 悬停红色效果 */
.nav-menu li a:hover,
.nav-menu li a.nav-link:hover,
.nav-menu > li:hover > a,
.main-nav .nav-menu > li:hover > a,
.main-nav ul li:hover > a,
.main-nav ul li a:hover,
.site-header .main-nav ul li a:hover,
.site-header .nav-menu > li:hover > a {
    color: #e53935 !important;
}

/* 悬停下划线 */
.main-nav .nav-menu > li > a::after,
.nav-menu > li > a::after {
    content: '' !important;
    position: absolute !important;
    bottom: 0 !important;
    left: 50% !important;
    width: 0 !important;
    height: 3px !important;
    background: #e53935 !important;
    transition: all 0.3s !important;
}

.main-nav .nav-menu > li:hover > a::after,
.nav-menu > li:hover > a::after {
    width: 80% !important;
    left: 10% !important;
}

/* 强制修复子导航被遮挡问题 */
.hero-section {
    margin-top: 0 !important;
    position: relative !important;
    z-index: 1 !important;
}

.header-main,
.site-header .header-main {
    z-index: 9998 !important;
    position: relative !important;
}

<evicted reason="file_written" chars=500 ref="/Applications/MAMP/htdocs/rtfans-wp/wp-content/themes/wulinfeng-theme/style.css" />

/* ========================================
   子导航下拉菜单样式
   ======================================== */

/* 主导航项悬停显示下拉 */
.main-nav ul.nav-menu > li.nav-item.has-submenu {
    position: relative;
}

/* 下拉箭头图标 */
.main-nav ul.nav-menu > li.nav-item.has-submenu > a .fa-chevron-down {
    font-size: 10px;
    margin-left: 5px;
    transition: transform 0.3s ease;
}
.main-nav ul.nav-menu > li.nav-item.has-submenu:hover > a .fa-chevron-down {
    transform: rotate(180deg);
}

/* ============================================
   [已禁用] 旧版横向多列布局 - 改用header.php内联CSS
   子菜单容器 - 横向多列布局
.main-nav ul.nav-menu > li.nav-item > .sub-menu-wrap {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 800px;
    background: #fff;
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
    border-top: 3px solid #ffd700;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 99999;
    padding: 20px;
}

/* 悬停显示 
.main-nav ul.nav-menu > li.nav-item:hover > .sub-menu-wrap {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* 子菜单 - 多列网格布局 
.main-nav ul.nav-menu > li.nav-item > .sub-menu-wrap > .sub-menu {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* 子菜单列标题 
.main-nav ul.nav-menu > li.nav-item > .sub-menu-wrap > .sub-menu > li {
    border-right: 1px solid #eee;
    padding-right: 15px;
}
.main-nav ul.nav-menu > li.nav-item > .sub-menu-wrap > .sub-menu > li:last-child {
    border-right: none;
}

/* 子菜单主链接（一级子菜单标题） 
.main-nav ul.nav-menu > li.nav-item > .sub-menu-wrap > .sub-menu > li > a {
    display: block;
    padding: 10px 0;
    color: #0055aa;
    font-size: 15px;
    font-weight: bold;
    border-bottom: 2px solid #ffd700;
    margin-bottom: 10px;
}

.main-nav ul.nav-menu > li.nav-item > .sub-menu-wrap > .sub-menu > li > a:hover {
    color: #e53935;
}

/* 二级子菜单列表 
.main-nav ul.nav-menu > li.nav-item > .sub-menu-wrap > .sub-menu > li > ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

/* 二级子菜单链接 
.main-nav ul.nav-menu > li.nav-item > .sub-menu-wrap > .sub-menu > li > ul li a {
    display: block;
    padding: 8px 0;
    color: #333;
    font-size: 13px;
    border-bottom: 1px dashed transparent;
    transition: all 0.2s ease;
}
.main-nav ul.nav-menu > li.nav-item > .sub-menu-wrap > .sub-menu > li > ul li a:hover {
    color: #0066b3;
    padding-left: 8px;
    border-bottom-color: #0066b3;
}

/* 响应式移动端子菜单处理 
@media (max-width: 1024px) {
    .main-nav ul.nav-menu > li.nav-item > .sub-menu-wrap > .sub-menu {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .main-nav ul.nav-menu > li.nav-item > .sub-menu-wrap {
        position: static;
        transform: none;
        min-width: 100%;
        box-shadow: none;
        border-top: none;
        padding: 0 0 0 20px;
        display: none;
    }
    .main-nav ul.nav-menu > li.nav-item:hover > .sub-menu-wrap,
    .main-nav ul.nav-menu > li.nav-item.active > .sub-menu-wrap {
        display: block;
    }
    .main-nav ul.nav-menu > li.nav-item > .sub-menu-wrap > .sub-menu {
        grid-template-columns: 1fr;
    }
    .main-nav ul.nav-menu > li.nav-item > .sub-menu-wrap > .sub-menu > li {
        border-right: none;
        border-bottom: 1px solid #eee;
        padding: 5px 0;
    }
}
[已禁用结束] ============================================ */

/* 子菜单hover修复 - 兼容has-submenu类 */
.main-nav ul.nav-menu > li.has-submenu:hover > .sub-menu-wrap,
.main-nav ul.nav-menu > li.has-submenu:focus-within > .sub-menu-wrap {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
    z-index: 9999 !important;
}

/* 强制覆盖Elementor内联蓝色样式 */
.elementor-widget-heading .elementor-heading-title,
.elementor-widget-text-editor,
.elementor-tab-content {
    color: #0a5c36 !important;
}

/* 产品分类区域蓝色背景强制改为绿色 */
.woocommerce-page .page-header,
.woocommerce-page .woocommerce-products-header,
.product-category-banner,
.elementor-widget-wc-product-categories .elementor-widget-container h2,
.term-description {
    background-color: #0a5c36 !important;
}

/* 覆盖rgb(0,102,179)蓝色 */
[style*="rgb(0,102,179)"] {
    background-color: rgba(10,92,54,0.9) !important;
}

/* ====================================
   Stackable区块红色边框修复
   ==================================== */
.wp-block-stackable-cta,
.wp-block-stackable-heading-text,
.wp-block-stackable-feature-grid,
.wp-block-stackable-hero,
.wp-block-stackable-icon-list,
.wp-block-stackable-card,
.wp-block-stackable-image-box,
.wp-block-stackable-notification,
.wp-block-stackable-accordion,
.wp-block-stackable-count-up,
.wp-block-stackable-divider,
.wp-block-stackable-spacer,
[class*="wp-block-stackable-"] {
    border: none !important;
    outline: none !important;
    box-shadow: none !important;
}

/* 移除Stackable区块的前端红色虚线边框 */
.wp-block-stackable-cta.alignfull {
    border: none !important;
    outline: none !important;
}

/* 修复CTA区块间距 */
.wp-block-stackable-cta {
    margin-top: 30px !important;
    margin-bottom: 20px !important;
    padding: 30px 20px !important;
}

.wp-block-stackable-cta .stk-container {
    margin: 0 !important;
    padding: 0 !important;
}

/* 修复CTA区块后面的段落间距 */
.wp-block-stackable-cta + p,
section + p,
.wp-block-stackable-cta ~ * {
    margin-top: 0 !important;
}

/* 修复Stackable区块通用间距 */
.wp-block-stackable-cta.alignfull {
    border: none !important;
    outline: none !important;
    margin: 30px 0 15px !important;
    padding: 25px 0 !important;
}

.wp-block-stackable-cta.alignfull h3 {
    margin-bottom: 8px !important;
}

.wp-block-stackable-cta.alignfull p {
    margin-bottom: 0 !important;
    opacity: 0.9;
}

/* 修复Accordion折叠面板间距 */
.wp-block-stackable-accordion {
    margin: 30px 0 !important;
}

/* 修复Heading-text区块间距 */
.wp-block-stackable-heading-text {
    margin: 30px 0 20px !important;
    padding: 0 20px !important;
}

/* 修复Hero横幅间距 */
.wp-block-stackable-hero.alignfull {
    margin-bottom: 30px !important;
}

/* ================================
   首页横幅增强样式
   ================================ */
.page-banner.banner-home {
    height: 450px;
    margin-top: 80px;
}

.banner-subtitle {
    font-size: 20px;
    margin-bottom: 25px;
    opacity: 0.9;
}

.banner-cta {
    display: flex;
    gap: 15px;
    margin-top: 10px;
}

.btn-banner {
    display: inline-block;
    padding: 12px 30px;
    background: #fff;
    color: #0a5c36;
    font-size: 16px;
    font-weight: 600;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.btn-banner:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.btn-banner-outline {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-banner-outline:hover {
    background: #fff;
    color: #0a5c36;
}

/* ================================
   通用Section标题样式（参考联系页面）
   ================================ */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-tag {
    display: inline-block;
    padding: 5px 15px;
    background: linear-gradient(135deg, #2e7d32 0%, #4caf50 100%);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    border-radius: 20px;
    margin-bottom: 15px;
}

.section-header h2 {
    font-size: 32px;
    color: #333;
    font-weight: bold;
    margin-bottom: 10px;
}

.section-desc {
    font-size: 16px;
    color: #666;
}

/* 产品模块 */
.products-section {
    padding: 80px 0;
    background: #fff;
}

.products-section .product-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.products-section .product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.products-section .product-thumb img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.products-section .product-info {
    padding: 20px;
}

.products-section .product-info h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.products-section .product-link {
    color: #2e7d32;
    font-weight: 500;
}

/* 案例模块 */
.cases-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.cases-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-tag {
    padding: 8px 20px;
    background: #fff;
    color: #666;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid #ddd;
}

.filter-tag.active,
.filter-tag:hover {
    background: #2e7d32;
    color: #fff;
    border-color: #2e7d32;
}

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

.case-card {
    border-radius: 10px;
    overflow: hidden;
}

.case-thumb {
    position: relative;
    overflow: hidden;
}

.case-thumb img {
    width: 100%;
    height: 100%;
    aspect-ratio: 1/1;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.case-card:hover .case-thumb img {
    transform: scale(1.1);
}

.case-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.85), transparent);
    padding: 30px 20px 20px;
    color: #fff;
}

.case-overlay h3 {
    font-size: 18px;
    margin-bottom: 5px;
}

.case-overlay p {
    font-size: 14px;
    opacity: 0.9;
}

/* 统计模块 */
.stats-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #2e7d32 0%, #4caf50 100%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
    color: #fff;
}

.stat-icon {
    font-size: 36px;
    margin-bottom: 15px;
    opacity: 0.9;
}

.stat-num {
    font-size: 42px;
    font-weight: bold;
    margin-bottom: 5px;
}

.stat-item p {
    font-size: 16px;
    opacity: 0.9;
}

/* 优势模块 */
.features-section {
    padding: 80px 0;
    background: #fff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    padding: 30px;
    background: #f8f9fa;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: #fff;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 40px;
    color: #2e7d32;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #333;
}

.feature-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 新闻模块 */
.news-section {
    padding: 80px 0;
    background: #f8f9fa;
}

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

.news-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
}

.news-thumb {
    position: relative;
}

.news-thumb img {
    width: 100%;
    height: 100%;
    aspect-ratio: 1/1;
    object-fit: cover;
}

.news-date {
    position: absolute;
    top: 15px;
    left: 15px;
    background: #2e7d32;
    color: #fff;
    padding: 5px 12px;
    font-size: 12px;
    border-radius: 15px;
}

.news-content {
    padding: 20px;
}

.news-content h3 {
    font-size: 16px;
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-content h3 a {
    color: #333;
}

.news-content h3 a:hover {
    color: #2e7d32;
}

.news-excerpt {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
    line-height: 1.6;
}

.news-link {
    color: #2e7d32;
    font-size: 14px;
    font-weight: 500;
}

/* CTA模块 */
.contact-cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #0a5c36 0%, #10b981 100%);
    color: #fff;
    text-align: center;
}

.cta-content h2 {
    font-size: 32px;
    margin-bottom: 15px;
}

.cta-content p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.btn-cta {
    display: inline-block;
    padding: 15px 35px;
    background: #fff;
    color: #0a5c36;
    font-size: 16px;
    font-weight: 600;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

.btn-cta-outline {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-cta-outline:hover {
    background: #fff;
    color: #0a5c36;
}

/* 响应式 */
@media (max-width: 992px) {
    .cases-grid,
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .page-banner.banner-home {
        height: 350px;
    }
    
    .banner-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .cases-grid,
    .news-grid,
    .features-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .section-header h2 {
        font-size: 24px;
    }
}

/* ========================================
   首页横幅优化 - 增高+渐变
   ======================================== */
.page-banner.banner-home {
    height: 500px;
    background: linear-gradient(135deg, #1b5e20 0%, #2e7d32 50%, #388e3c 100%);
}
.page-banner.banner-home::before {
    background: linear-gradient(135deg, rgba(27,94,32,0.85) 0%, rgba(46,125,50,0.75) 100%);
}
.page-banner-content {
    height: 500px;
    padding-top: 80px;
}
.page-banner-content h1 {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
    text-shadow: 2px 4px 8px rgba(0,0,0,0.3);
}
.banner-subtitle {
    font-size: 22px;
    margin-bottom: 30px;
    opacity: 0.95;
}

/* ========================================
   首页卡片统一风格 - 移除边框，统一阴影
   ======================================== */
.home-products .product-card,
.home-cases .case-card,
.home-news .news-card {
    border: none;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
}
.home-products .product-card:hover,
.home-cases .case-card:hover,
.home-news .news-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(46,125,50,0.15);
}

/* 产品卡片优化 - 移除边框 */
.home-products .product-thumb {
    border-bottom: none;
}
.home-products .product-card:hover .product-thumb {
    border-bottom: none;
}

/* 案例卡片优化 */
.home-cases .case-card .case-overlay {
    background: linear-gradient(transparent, rgba(27,94,32,0.9));
}

/* 新闻卡片优化 */
.home-news .news-card {
    border: 2px solid #e8f5e9;
}
.home-news .news-card:hover {
    border-color: #2e7d32;
}
.home-news .news-date {
    background: linear-gradient(135deg, #1b5e20, #2e7d32);
}

/* ========================================
   响应式调整
   ======================================== */
@media (max-width: 768px) {
    .page-banner.banner-home {
        height: 400px;
    }
    .page-banner-content {
        height: 400px;
        padding-top: 60px;
    }
    .page-banner-content h1 {
        font-size: 32px;
    }
    .banner-subtitle {
        font-size: 18px;
    }
    .products-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .cases-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .news-grid { grid-template-columns: repeat(1, 1fr) !important; }
}