/* 睿投文旅 - 基础样式 */

/* CSS 变量 - 商务深绿配色方案 */
:root {
    --color-primary: #003366;
    --color-gold: #FFB300;
    --color-accent: #FFB300;
    --color-niren: #2E8B57;
    --color-kaikelok: #0066CC;
    --color-ruihe: #8B0000;
    --color-white: #FFFFFF;
    --color-light-gray: #f8f9fa;
    --color-gray: #6c757d;
    --color-dark: #212529;
    /* 蓝色渐变色 */
    --color-primary-light: #004080;
    --color-primary-dark: #002244;
    --color-accent-glow: rgba(255, 179, 0, 0.3);
}

/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: var(--color-dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--color-primary);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-primary);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar.scrolled {
    background: rgba(0, 51, 102, 0.95);
    backdrop-filter: blur(10px);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: var(--color-accent);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 8px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-white);
}

.logo-img {
    height: 45px;
    width: auto;
    max-width: 60px;
    object-fit: contain;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--color-white);
    text-decoration: none;
    padding: 0.5rem 1rem;
    transition: all 0.3s;
}

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

/* 下拉菜单 */
.nav-dropdown {
    position: relative;
}

.dropdown-arrow {
    font-size: 0.7rem;
    margin-left: 0.3rem;
    transition: transform 0.3s;
}

.nav-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-primary);
    min-width: 200px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    border-radius: 8px;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
    list-style: none;
    display: none;
    border: 1px solid rgba(255,255,255,0.1);
}

.nav-dropdown:hover .dropdown-menu {
    display: block;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    margin: 0;
    border-bottom: none;
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--color-white);
    text-decoration: none;
    transition: all 0.3s;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.dropdown-menu a:hover {
    background: rgba(255, 179, 0, 0.2);
    color: var(--color-accent);
}

.dropdown-menu li:last-child a {
    border-bottom: none;
}

/* 汉堡菜单按钮 */
.hamburger-menu {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.hamburger-menu span {
    width: 25px;
    height: 2px;
    background: var(--color-accent);
    transition: all 0.3s;
    border-radius: 2px;
}

.hamburger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.hamburger-menu.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* 轮播图 */
.hero-slider {
    position: relative;
    height: 85vh;
    min-height: 600px;
    max-height: 900px;
    margin-top: 65px;
    overflow: hidden;
}

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

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s;
}

.slide.active {
    opacity: 1;
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* background: linear-gradient(135deg, rgba(10,30,60,0.7), rgba(10,30,60,0.4)); */
}

.hero-content {
    position: absolute;
    top: auto;
    bottom: 85px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--color-white);
    z-index: 2;
    width: 90%;
}

.hero-title {
    font-size: 3.8rem;
    font-weight: 800;
    margin-bottom: 1.2rem;
    color: #FFFFFF;
    text-shadow: 
        0 3px 15px rgba(0, 0, 0, 0.7),
        0 6px 30px rgba(0, 0, 0, 0.5),
        0 1px 3px rgba(0, 0, 0, 0.9);
    letter-spacing: 0.08em;
    line-height: 1.3;
}

.hero-badge {
    margin: 1.5rem 0 2.5rem;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-badge .badge {
    display: inline-block;
    padding: 14px 40px;
    background: linear-gradient(135deg, rgba(255, 179, 0, 0.25), rgba(0, 34, 68, 0.35));
    backdrop-filter: blur(8px);
    border: 2px solid rgba(255, 179, 0, 0.9);
    color: #FFF;
    font-size: 1.15rem;
    font-weight: 600;
    border-radius: 50px;
    letter-spacing: 0.15em;
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.hero-badge .badge:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 6px 25px rgba(255, 179, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.hero-subtitle {
    font-size: 1.15rem;
    line-height: 2.2;
    max-width: 1000px;
    margin: 0 auto;
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 
        0 2px 10px rgba(0, 0, 0, 0.8),
        0 1px 4px rgba(0, 0, 0, 0.6);
    font-weight: 400;
    letter-spacing: 0.05em;
}

.hero-subtitle strong {
    color: #FFB300;
    font-weight: 600;
    position: relative;
    padding: 0 4px;
}

.hero-subtitle strong::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255, 179, 0, 0.6), transparent);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 轮播控制按钮 */
.slider-controls {
    position: absolute;
    bottom: 40px;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    pointer-events: none;
}

.slider-arrow {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    font-size: 2rem;
    font-weight: 300;
    cursor: pointer;
    display: none !important; /* 隐藏左右切换按钮 */
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    line-height: 1;
    pointer-events: auto;
    outline: none;
}

.slider-arrow:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-primary);
    transform: scale(1.1);
    box-shadow: 0 5px 20px rgba(255, 179, 0, 0.5);
}

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

/* 圆点指示器 */
.slider-dots {
    display: flex;
    gap: 12px;
    align-items: center;
    pointer-events: auto;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    pointer-events: auto;
}

.slider-dot:hover {
    background: rgba(255, 255, 255, 0.6);
    transform: scale(1.2);
}

.slider-dot.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    width: 40px;
    border-radius: 6px;
    box-shadow: 0 0 15px rgba(255, 179, 0, 0.7);
}

/* 移动端轮播控制 */
@media (max-width: 768px) {
    .slider-controls {
        bottom: 20px;
        gap: 15px;
    }
    
    .slider-arrow {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }
    
    .slider-dot {
        width: 10px;
        height: 10px;
    }
    
    .slider-dot.active {
        width: 30px;
    }
}

/* 简介区 */
.intro-section {
    padding: 4rem 0;
    background: var(--color-white);
}

.intro-badges {
    text-align: center;
    margin: 20px 0 30px;
}

.intro-badges .badge {
    display: inline-block;
    padding: 10px 25px;
    background: rgba(255, 179, 0, 0.1);
    border: 2px solid var(--color-accent);
    color: var(--color-accent);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    letter-spacing: 0.05em;
}

.intro-text {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.8;
}

/* 核心服务内容 */
.core-resources {
    padding: 4rem 0;
    background: var(--color-light-gray);
}

.core-services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.core-service-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 12px;
    position: relative;
    transition: all 0.3s;
    border-left: 4px solid var(--color-accent);
}

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

.core-service-card .service-num {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 3rem;
    font-weight: 900;
    color: rgba(255, 179, 0, 0.15);
    line-height: 1;
}

.core-service-card h3 {
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: 0.8rem;
    font-weight: 600;
    line-height: 1.5;
}

.core-service-card p {
    font-size: 0.9rem;
    color: var(--color-gray);
    line-height: 1.6;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.resource-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s;
}

.resource-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.15);
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    background: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
}

.card-icon svg {
    width: 40px;
    height: 40px;
}

.resource-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.resource-card ul {
    list-style: none;
    margin-bottom: 1.5rem;
}

.resource-card li {
    padding: 0.5rem 0;
    color: var(--color-gray);
}

.card-link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
}

/* 六大事业部 - 微信支付复刻版 - 图卡分离模式 */
.business-departments {
    padding: 0 !important;
    background: #FFF; /* 改为白色背景 */
    overflow: hidden;
    width: 100% !important;
    max-width: 100% !important;
}

/* 标题区域保持白色背景 */
.business-departments .section-title {
    background: #FFF; /* 确保标题区域是白色背景 */
    color: var(--color-primary); /* 使用和四大业务板块一致的颜色 */
    padding-top: 4rem;
    margin-bottom: 3rem;
}

.business-departments .container {
    width: 100% !important;
    max-width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
}

.departments-grid {
    display: flex;
    gap: 0;
    height: 700px !important; /* 增加高度以展示图片 */
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    border-radius: 0 !important;
    overflow: hidden;
    box-shadow: none !important;
    background: #000; /* 卡片区域保持黑色背景 */
}

.dept-card {
    flex: 1;
    position: relative;
    transition: all 0.6s cubic-bezier(0.25, 1, 0.5, 1);
    overflow: hidden;
    cursor: pointer;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-width: 0;
    z-index: 1;
}

/* 未展开的卡片：使用伪元素添加右侧分割线 */
.dept-card:not(.active)::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 1px;
    height: 100%;
    background: rgba(255,255,255,0.4);
    z-index: 5;
    pointer-events: none;
}

/* 最后一个未展开的卡片不需要分割线 */
.dept-card:last-child:not(.active)::after {
    display: none;
}

/* 激活状态：宽度大幅增加，z-index提升覆盖相邻卡片 */
.dept-card.active {
    flex: 5;
    z-index: 10; /* 提升层级，覆盖相邻卡片 */
    border-right: none;
}

/* 展开的卡片覆盖相邻卡片的分割线 */
.dept-card.active ~ .dept-card::after {
    display: none; /* 隐藏被展开卡片覆盖的相邻卡片的分割线 */
}

/* 遮罩层（仅用于收起状态的背景压暗） */
.dept-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5); /* 收起时：半透明黑 */
    transition: all 0.6s ease;
    z-index: 1;
    backdrop-filter: blur(0px);
}

/* 激活时：遮罩消失，显示清晰背景图 */
.dept-card.active .dept-overlay {
    background: rgba(0, 0, 0, 0);
    backdrop-filter: blur(0);
}

/* 优化背景图片显示，防止拉伸变形 */
.dept-card {
    /* 使用cover确保图片覆盖整个容器，保持比例不变形 */
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    /* 防止背景图片在过渡时闪烁 */
    will-change: transform;
}

/* 展开时保持图片比例，确保不变形 */
.dept-card.active {
    background-size: cover !important;
    background-position: center center !important;
    background-repeat: no-repeat !important;
    /* 确保背景图片在展开时平滑过渡 */
    transition: flex 0.6s cubic-bezier(0.25, 1, 0.5, 1), background-size 0.6s ease;
}

/* 内容容器（即那个"卡片"） */
.dept-inner {
    position: absolute;
    z-index: 2;
    display: flex;
    flex-direction: column;
    transition: all 0.6s cubic-bezier(0.25, 1, 0.5, 1);
    
    /* 默认（收起）状态：充满整个区域，顶部对齐 */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    align-items: center;
    justify-content: flex-start; /* 改为顶部对齐 */
    background: transparent; /* 收起时无背景色 */
    padding: 2rem 1rem; /* 增加顶部内边距 */
}

/* 激活（展开）状态：变成右下角的独立卡片 */
.dept-card.active .dept-inner {
    /* 卡片位置和尺寸 */
    width: 380px; 
    height: auto;
    min-height: 260px;
    max-height: 350px;
    right: 5%;      /* 距离右边 */
    bottom: 10%;    /* 距离底部 */
    left: auto;     /* 取消left定位 */
    top: auto;      /* 取消top定位 */
    
    /* 卡片样式 */
    align-items: flex-start;
    justify-content: flex-start;
    text-align: left;
    padding: 2rem;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    overflow-y: auto; /* 内容过多时可滚动 */
}

/* 统一卡片背景色 - 黑色透明磨砂玻璃质感 */
.dept-card.active .dept-inner { 
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* 标题 - 默认收起状态：竖向排列，艺术字体 */
.dept-title {
    font-family: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    font-size: 2rem; /* 更大的字体 */
    color: #FFF;
    font-weight: 700; /* 更粗的字体 */
    letter-spacing: 0.25em; /* 更大的字间距 */
    margin: 0;
    margin-top: 4rem; /* 顶部留白 */
    transition: all 0.5s ease;
    writing-mode: vertical-rl; /* 竖向排列 */
    text-orientation: upright;
    line-height: 1.5;
    text-shadow: 
        0 2px 10px rgba(0, 0, 0, 0.4),
        0 4px 20px rgba(0, 0, 0, 0.2); /* 多层阴影增强艺术感 */
}

/* 展开时标题：横向排列，更大更艺术 */
.dept-card.active .dept-title {
    writing-mode: horizontal-tb; /* 横向排列 */
    text-orientation: mixed;
    font-size: 2.2rem; /* 稍微调整大小以适应 */
    font-weight: 800;
    margin-bottom: 1rem;
    margin-top: 0;
    line-height: 1.2;
    letter-spacing: 0.1em;
    color: #FFFFFF;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2); /* 更柔和的阴影 */
}

/* 短横线 - 收起状态：隐藏 */
.dept-line {
    width: 2px;
    height: 30px;
    background: rgba(255, 255, 255, 0.7);
    margin-top: 1.5rem;
    transition: all 0.5s ease;
    opacity: 0; /* 收起状态隐藏 */
    visibility: hidden;
}

/* 展开时短横线：横向，在标题下方 */
.dept-card.active .dept-line {
    width: 50px;
    height: 3px;
    background: #FFF;
    margin-top: 0;
    margin-bottom: 1.5rem;
    opacity: 1; /* 展开状态显示 */
    visibility: visible;
}

/* 描述文字 */
.dept-desc {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease;
    text-align: left;
    width: 100%;
}

/* 展开时显示描述 */
.dept-card.active .dept-desc {
    opacity: 1;
    max-height: 300px;
    transition-delay: 0.2s;
}

.dept-desc p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.6; /* 减小行高 */
    margin-bottom: 0.4rem; /* 减小间距 */
    white-space: normal; /* 允许换行 */
    position: relative;
    padding-left: 1.2rem; /* 减小左边距 */
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

/* 添加白色圆点 */
.dept-desc p::before {
    content: '';
    position: absolute;
    left: 0;
    top: 7px; /* 调整圆点位置 */
    width: 6px;
    height: 6px;
    background: #FFF;
    border-radius: 50%;
    box-shadow: 0 0 5px rgba(255,255,255,0.8);
}

/* 移动端适配 */
@media (max-width: 768px) {
    .departments-grid {
        flex-direction: column;
        height: auto !important;
    }
    
    .dept-card {
        flex: none;
        height: 120px;
        width: 100%;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .dept-card.active {
        height: 450px;
        flex: none;
    }
    
    .dept-inner {
        position: relative;
        width: 100%;
        height: 100%;
        top: auto;
        left: auto;
        right: auto;
        bottom: auto;
        background: transparent !important;
        padding: 1.5rem 1rem;
    }
    
    .dept-title {
        font-size: 1.4rem;
        margin-top: 2rem;
    }
    
    .dept-card.active .dept-inner {
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.7) !important; /* 移动端保持全覆盖遮罩 */
        padding: 2rem;
    }
    
    .dept-card.active .dept-title {
        font-size: 1.8rem;
    }
}

/* 四大业务板块 */
.business-sectors {
    padding: 5rem 0;
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    overflow: hidden;
    position: relative;
}

/* ============================================
   ☀️ 左上角太阳光照射效果 - Sunlight Effect
   ============================================ */

/* 太阳光源 - 主光晕 */
.business-sectors::before {
    content: '';
    position: absolute;
    top: -150px;
    left: -150px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle at center,
        rgba(255, 220, 150, 0.4) 0%,
        rgba(255, 200, 100, 0.25) 20%,
        rgba(255, 180, 80, 0.15) 40%,
        rgba(255, 160, 60, 0.05) 60%,
        transparent 80%
    );
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    animation: sunPulse 8s ease-in-out infinite;
}

/* 太阳光线容器 */
.sunlight-rays {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

/* 光线效果 - God Rays */
.sunlight-rays::before {
    content: '';
    position: absolute;
    top: -100px;
    left: -100px;
    width: 800px;
    height: 800px;
    background: 
        /* 主光线 */
        linear-gradient(135deg, 
            rgba(255, 230, 180, 0.15) 0%, 
            transparent 40%),
        /* 次光线1 */
        linear-gradient(125deg, 
            rgba(255, 220, 150, 0.1) 0%, 
            transparent 35%),
        /* 次光线2 */
        linear-gradient(145deg, 
            rgba(255, 240, 200, 0.08) 0%, 
            transparent 45%);
    pointer-events: none;
    animation: raysShimmer 12s ease-in-out infinite;
}

/* ============================================
   穿透光束效果 - Volumetric Light Beams
   ============================================ */

/* 光束容器 */
.light-beams {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

/* 单条光束基础样式 */
.light-beam {
    position: absolute;
    top: -50px;
    left: -50px;
    width: 600px;
    height: 2px;
    transform-origin: left center;
    pointer-events: none;
    filter: blur(0.5px);
}

/* 光束1 - 主光束 */
.light-beam:nth-child(1) {
    background: linear-gradient(90deg, 
        rgba(255, 240, 200, 0.8) 0%, 
        rgba(255, 230, 180, 0.5) 20%,
        rgba(255, 220, 150, 0.2) 50%,
        transparent 100%);
    transform: rotate(35deg);
    height: 4px;
    filter: blur(2px);
    animation: beamPulse1 8s ease-in-out infinite;
}

/* 光束2 */
.light-beam:nth-child(2) {
    background: linear-gradient(90deg, 
        rgba(255, 250, 220, 0.7) 0%, 
        rgba(255, 240, 200, 0.4) 30%,
        transparent 100%);
    transform: rotate(42deg);
    top: -30px;
    height: 3px;
    filter: blur(1.5px);
    animation: beamPulse2 10s ease-in-out infinite;
}

/* 光束3 */
.light-beam:nth-child(3) {
    background: linear-gradient(90deg, 
        rgba(255, 255, 240, 0.6) 0%, 
        rgba(255, 245, 210, 0.3) 40%,
        transparent 100%);
    transform: rotate(28deg);
    top: -70px;
    width: 700px;
    height: 5px;
    filter: blur(3px);
    animation: beamPulse3 12s ease-in-out infinite;
}

/* 光束4 */
.light-beam:nth-child(4) {
    background: linear-gradient(90deg, 
        rgba(255, 240, 180, 0.5) 0%, 
        rgba(255, 230, 160, 0.25) 35%,
        transparent 100%);
    transform: rotate(50deg);
    top: -20px;
    left: -30px;
    width: 500px;
    height: 2px;
    filter: blur(1px);
    animation: beamPulse4 9s ease-in-out infinite;
}

/* 光束5 - 宽光束 */
.light-beam:nth-child(5) {
    background: linear-gradient(90deg, 
        rgba(255, 250, 230, 0.4) 0%, 
        rgba(255, 240, 200, 0.2) 40%,
        transparent 100%);
    transform: rotate(38deg);
    top: -40px;
    width: 800px;
    height: 20px;
    filter: blur(8px);
    animation: beamPulse5 15s ease-in-out infinite;
}

/* 光束6 */
.light-beam:nth-child(6) {
    background: linear-gradient(90deg, 
        rgba(255, 255, 255, 0.6) 0%, 
        rgba(255, 250, 220, 0.3) 30%,
        transparent 100%);
    transform: rotate(32deg);
    top: -60px;
    left: -40px;
    width: 550px;
    height: 2px;
    filter: blur(1px);
    animation: beamPulse6 7s ease-in-out infinite;
}

/* 光束7 - 细光束 */
.light-beam:nth-child(7) {
    background: linear-gradient(90deg, 
        rgba(255, 245, 200, 0.7) 0%, 
        rgba(255, 235, 180, 0.35) 25%,
        transparent 100%);
    transform: rotate(45deg);
    top: -10px;
    width: 450px;
    height: 1.5px;
    filter: blur(0.5px);
    animation: beamPulse7 11s ease-in-out infinite;
}

/* 光束8 - 超宽漫射光 */
.light-beam:nth-child(8) {
    background: linear-gradient(90deg, 
        rgba(255, 250, 240, 0.25) 0%, 
        rgba(255, 245, 220, 0.1) 50%,
        transparent 100%);
    transform: rotate(40deg);
    top: -80px;
    left: -80px;
    width: 1000px;
    height: 80px;
    filter: blur(20px);
    animation: beamPulse8 18s ease-in-out infinite;
}

/* 光束动画 - 不同节奏 */
@keyframes beamPulse1 {
    0%, 100% { opacity: 0.9; }
    50% { opacity: 0.6; }
}

@keyframes beamPulse2 {
    0%, 100% { opacity: 0.8; }
    30% { opacity: 0.5; }
    70% { opacity: 0.7; }
}

@keyframes beamPulse3 {
    0%, 100% { opacity: 0.7; }
    40% { opacity: 0.4; }
}

@keyframes beamPulse4 {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 0.9; }
}

@keyframes beamPulse5 {
    0%, 100% { opacity: 0.5; }
    30% { opacity: 0.3; }
    60% { opacity: 0.6; }
}

@keyframes beamPulse6 {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 0.4; }
}

@keyframes beamPulse7 {
    0%, 100% { opacity: 0.8; }
    40% { opacity: 0.5; }
    80% { opacity: 0.7; }
}

@keyframes beamPulse8 {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.2; }
}

/* 光斑效果 - Lens Flare */
.sunlight-rays::after {
    content: '';
    position: absolute;
    top: 80px;
    left: 120px;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle,
        rgba(255, 255, 255, 0.6) 0%,
        rgba(255, 240, 200, 0.3) 30%,
        transparent 70%
    );
    border-radius: 50%;
    filter: blur(2px);
    animation: flarePulse 6s ease-in-out infinite;
}

/* 散射光粒子 */
.light-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    height: 60%;
    pointer-events: none;
    z-index: 0;
}

.light-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    filter: blur(1px);
    animation: particleFloat 8s ease-in-out infinite;
}

/* 太阳脉动动画 */
@keyframes sunPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

/* 光线闪烁动画 */
@keyframes raysShimmer {
    0%, 100% {
        opacity: 1;
        transform: rotate(0deg) scale(1);
    }
    25% {
        opacity: 0.85;
    }
    50% {
        opacity: 0.95;
        transform: rotate(1deg) scale(1.02);
    }
    75% {
        opacity: 0.9;
    }
}

/* 光斑脉动动画 */
@keyframes flarePulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.6;
    }
    30% {
        transform: scale(1.3);
        opacity: 0.8;
    }
    60% {
        transform: scale(0.9);
        opacity: 0.5;
    }
}

/* 光粒子飘动动画 */
@keyframes particleFloat {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0;
    }
    10% {
        opacity: 0.8;
    }
    50% {
        transform: translate(50px, 80px) scale(0.5);
        opacity: 0.6;
    }
    90% {
        opacity: 0.3;
    }
}

/* 雪花效果 */
.snowflakes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 1;
}

.snowflake {
    position: absolute;
    top: -20px;
    color: rgba(255, 255, 255, 0.4);
    font-size: 1rem;
    animation: snowfall linear infinite;
    text-shadow: 0 0 5px rgba(255,255,255,0.3);
}

.snowflake:nth-child(1) { left: 5%; animation-duration: 10s; animation-delay: 0s; font-size: 0.8rem; opacity: 0.6; }
.snowflake:nth-child(2) { left: 15%; animation-duration: 12s; animation-delay: 1s; font-size: 1.2rem; opacity: 0.4; }
.snowflake:nth-child(3) { left: 25%; animation-duration: 8s; animation-delay: 2s; font-size: 0.9rem; opacity: 0.5; }
.snowflake:nth-child(4) { left: 35%; animation-duration: 14s; animation-delay: 0.5s; font-size: 1rem; opacity: 0.3; }
.snowflake:nth-child(5) { left: 45%; animation-duration: 9s; animation-delay: 3s; font-size: 1.1rem; opacity: 0.5; }
.snowflake:nth-child(6) { left: 55%; animation-duration: 11s; animation-delay: 1.5s; font-size: 0.7rem; opacity: 0.6; }
.snowflake:nth-child(7) { left: 65%; animation-duration: 13s; animation-delay: 2.5s; font-size: 1.3rem; opacity: 0.4; }
.snowflake:nth-child(8) { left: 75%; animation-duration: 10s; animation-delay: 0.8s; font-size: 0.85rem; opacity: 0.5; }
.snowflake:nth-child(9) { left: 85%; animation-duration: 15s; animation-delay: 1.2s; font-size: 1rem; opacity: 0.3; }
.snowflake:nth-child(10) { left: 92%; animation-duration: 8s; animation-delay: 2s; font-size: 0.9rem; opacity: 0.5; }
.snowflake:nth-child(11) { left: 10%; animation-duration: 11s; animation-delay: 3.5s; font-size: 1.1rem; opacity: 0.4; }
.snowflake:nth-child(12) { left: 80%; animation-duration: 9s; animation-delay: 0.3s; font-size: 0.75rem; opacity: 0.6; }

@keyframes snowfall {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(700px) rotate(360deg);
        opacity: 0;
    }
}

/* ============================================
   🌨️ 动态雪花算法样式 - Dynamic Snowfall Effect
   ============================================ */

.dynamic-snowflake {
    position: absolute;
    pointer-events: none;
    user-select: none;
    z-index: 1;
}

/* 雪花下落动画 */
@keyframes snowfall-drop {
    0% {
        top: -30px;
        opacity: 0;
    }
    3% {
        opacity: 0.8;
    }
    85% {
        opacity: 0.9;
    }
    100% {
        top: calc(100% + 30px);
        opacity: 0;
    }
}

/* 雪花下落到地面动画 - 落到镜面位置 */
@keyframes snowfall-drop-to-ground {
    0% {
        top: -30px;
        opacity: 0;
    }
    3% {
        opacity: 0.9;
    }
    65% {
        opacity: 0.9;
    }
    70% {
        top: var(--ground-level, 72%);
        opacity: 0.7;
    }
    100% {
        top: calc(var(--ground-level, 72%) + 5%);
        opacity: 0;
        transform: scale(0.3);
    }
}

/* 雪花左右摆动动画 - 模拟风吹效果 */
@keyframes snowfall-sway {
    0%, 100% {
        transform: translateX(0) rotate(var(--rotation-speed, 0deg));
    }
    25% {
        transform: translateX(calc(var(--sway, 30px) * 0.7)) rotate(calc(var(--rotation-speed, 0deg) * 0.25));
    }
    50% {
        transform: translateX(calc(var(--sway, 30px) * -0.3)) rotate(calc(var(--rotation-speed, 0deg) * 0.5));
    }
    75% {
        transform: translateX(calc(var(--sway, 30px) * 0.5)) rotate(calc(var(--rotation-speed, 0deg) * 0.75));
    }
}

/* 雪花旋转动画 */
@keyframes snowfall-rotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(var(--rotation-speed, 360deg));
    }
}

/* 雪花容器优化 */
.snowflakes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 1;
}

/* 特殊效果：雪花闪烁 */
@keyframes snowflake-sparkle {
    0%, 100% {
        filter: brightness(1) blur(0px);
    }
    50% {
        filter: brightness(1.5) blur(0.5px);
    }
}

/* 3D深度效果 - 远处的雪花 */
.dynamic-snowflake.far {
    filter: blur(2px);
    opacity: 0.4 !important;
}

/* 3D深度效果 - 近处的雪花 */
.dynamic-snowflake.near {
    filter: blur(0);
    opacity: 1 !important;
    text-shadow: 0 0 10px rgba(255,255,255,0.8), 0 0 20px rgba(200,220,255,0.5);
}

/* ============================================
   ❄️ 积雪堆叠效果 - Snow Pile Effect
   ============================================ */

/* 积雪容器 - 位于镜面反射区域 */
.snow-pile-container {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 30%;
    pointer-events: none;
    z-index: 2;
    /* 镜面反射效果 */
    -webkit-mask-image: linear-gradient(to top, 
        rgba(0,0,0,0.6) 0%, 
        rgba(0,0,0,0.3) 30%, 
        rgba(0,0,0,0.1) 60%,
        transparent 100%);
    mask-image: linear-gradient(to top, 
        rgba(0,0,0,0.6) 0%, 
        rgba(0,0,0,0.3) 30%, 
        rgba(0,0,0,0.1) 60%,
        transparent 100%);
}

/* 堆积的雪花 */
.piled-snow {
    position: absolute;
    pointer-events: none;
    user-select: none;
    filter: blur(0.3px);
}

/* 雪花落地动画 */
@keyframes snow-land {
    0% {
        opacity: 0;
        transform: translateY(-10px) scale(1.2);
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* 积雪融化动画 */
@keyframes snow-melt {
    0% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(0.8);
    }
    100% {
        opacity: 0;
        transform: scale(0.3) translateY(5px);
    }
}

/* 积雪闪烁效果 */
@keyframes snow-pile-shimmer {
    0%, 100% {
        text-shadow: 0 0 3px rgba(255,255,255,0.5);
    }
    50% {
        text-shadow: 0 0 8px rgba(255,255,255,0.8), 0 0 12px rgba(200,220,255,0.5);
    }
}

/* 镜面地面效果 - 增强反射感 */
.business-sectors::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 25%;
    background: linear-gradient(to top,
        rgba(100, 150, 200, 0.15) 0%,
        rgba(80, 120, 180, 0.08) 30%,
        transparent 100%);
    pointer-events: none;
    z-index: 0;
}

.business-sectors .section-title {
    color: #fff;
}

/* 3D弧形卡片排列 */
.arc-cards {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    height: 600px;
    padding-top: 30px;
    perspective: 1500px;
    position: relative;
}

.arc-card {
    position: absolute;
    width: 280px;
    height: 380px;
    border-radius: 20px;
    overflow: visible;
    transition: all 0.5s ease;
    cursor: pointer;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
    /* 倒影效果 - 靠近卡片清晰，远离渐变消失 */
    -webkit-box-reflect: below 5px linear-gradient(to bottom, transparent 20%, rgba(255,255,255,0.7) 100%);
}

.arc-card-inner {
    width: 100%;
    height: 100%;
    padding: 2rem 1.8rem;
    display: flex;
    flex-direction: column;
    border-radius: 20px;
    position: relative;
}

.arc-card-inner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255,255,255,0.15), transparent);
    pointer-events: none;
    border-radius: 20px 20px 0 0;
}

.arc-num {
    font-size: 5rem;
    font-weight: 900;
    position: absolute;
    top: -5px;
    right: 15px;
    opacity: 0.2;
    line-height: 1;
    color: rgba(255,255,255,0.5);
}

.arc-card h3 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #fff;
    position: relative;
    z-index: 1;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.4);
    letter-spacing: 0.05em;
}

.arc-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    position: relative;
    z-index: 1;
}

.arc-card li {
    font-size: 0.95rem;
    font-weight: 600;
    margin: 0.5rem 0;
    padding: 10px 18px;
    position: relative;
    color: #fff;
    background: rgba(0,0,0,0.3);
    border-radius: 50px;
    border: 1px solid rgba(255,255,255,0.25);
    text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
    letter-spacing: 0.03em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}


/* 弧形排列 - 四张卡片 均匀间距 */
/* 左边第一张 - 最倾斜 */
.arc-card-1 {
    left: 3%;
    transform: rotateY(45deg) translateZ(-50px) scale(0.85);
    z-index: 1;
}

.arc-card-1 .arc-card-inner {
    background: linear-gradient(145deg, #FFB300, #FF8F00);
}

/* 中间偏左 - 稍微倾斜 */
.arc-card-2 {
    left: 27%;
    transform: rotateY(15deg) translateZ(-150px) scale(0.8);
    z-index: 2;
}

.arc-card-2 .arc-card-inner {
    background: linear-gradient(145deg, #00B4D8, #0077B6);
}

/* 中间偏右 - 稍微倾斜 */
.arc-card-3 {
    right: 27%;
    transform: rotateY(-15deg) translateZ(-150px) scale(0.8);
    z-index: 2;
}

.arc-card-3 .arc-card-inner {
    background: linear-gradient(145deg, #2E8B57, #1B5E20);
}

/* 右边第一张 - 最倾斜 */
.arc-card-4 {
    right: 3%;
    transform: rotateY(-45deg) translateZ(-50px) scale(0.85);
    z-index: 1;
}

.arc-card-4 .arc-card-inner {
    background: linear-gradient(145deg, #00ffc6, #00ffc8);
}

/* 悬停效果 */
.arc-card:hover {
    transform: rotateY(0) translateZ(80px) scale(1.05) !important;
    z-index: 10 !important;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
}

.sector-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 16px;
    position: relative;
    overflow: hidden;
    min-height: 180px;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.sector-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}

.sector-number {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 3rem;
    font-weight: 900;
    color: rgba(255, 179, 0, 0.1);
    line-height: 1;
    z-index: 1;
}

.sector-card h3 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 1.2rem;
    font-weight: 700;
    line-height: 1.3;
}

.sector-planning {
    border-left: 5px solid #FFB300;
}

.sector-marketing {
    border-left: 5px solid #00B4D8;
}

.sector-construction {
    border-left: 5px solid #FF6B6B;
}

.sector-alliance {
    border-left: 5px solid #9B59B6;
}

.sector-content {
    margin-top: 1rem;
}

.sector-item {
    margin-bottom: 1.5rem;
}

.sector-item strong {
    display: block;
    color: var(--color-primary);
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.sector-item p {
    color: var(--color-gray);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* 业务板块标签样式 - 立体效果 */
.sector-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 1.5rem;
}

.sector-tag {
    display: inline-block;
    padding: 12px 22px;
    background: linear-gradient(145deg, #ffffff, #f5f5f5);
    border: none;
    border-radius: 30px;
    color: var(--color-primary);
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: default;
    white-space: nowrap;
    position: relative;
    /* 立体阴影效果 */
    box-shadow: 
        4px 4px 8px rgba(0, 0, 0, 0.1),
        -2px -2px 6px rgba(255, 255, 255, 0.9),
        inset 0 0 0 rgba(255, 255, 255, 0);
}

.sector-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(145deg, rgba(255,255,255,0.5), transparent);
    border-radius: 30px;
    opacity: 0.6;
}

.sector-tag:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        6px 6px 16px rgba(0, 0, 0, 0.15),
        -3px -3px 10px rgba(255, 255, 255, 1),
        inset 0 2px 4px rgba(255, 255, 255, 0.3);
}

/* 不同板块的标签颜色 - 立体渐变效果 */
.sector-planning .sector-tag {
    background: linear-gradient(145deg, #FFF8E1, #FFE082);
    color: #F57C00;
    box-shadow: 
        5px 5px 12px rgba(255, 179, 0, 0.3),
        -2px -2px 8px rgba(255, 255, 255, 0.9),
        inset 0 1px 2px rgba(255, 255, 255, 0.5);
}

.sector-planning .sector-tag:hover {
    background: linear-gradient(145deg, #FFE082, #FFD54F);
    box-shadow: 
        6px 6px 18px rgba(255, 179, 0, 0.4),
        -3px -3px 12px rgba(255, 255, 255, 1),
        inset 0 2px 4px rgba(255, 255, 255, 0.6);
}

.sector-marketing .sector-tag {
    background: linear-gradient(145deg, #E0F7FA, #80DEEA);
    color: #00838F;
    box-shadow: 
        5px 5px 12px rgba(0, 180, 216, 0.3),
        -2px -2px 8px rgba(255, 255, 255, 0.9),
        inset 0 1px 2px rgba(255, 255, 255, 0.5);
}

.sector-marketing .sector-tag:hover {
    background: linear-gradient(145deg, #80DEEA, #4DD0E1);
    box-shadow: 
        6px 6px 18px rgba(0, 180, 216, 0.4),
        -3px -3px 12px rgba(255, 255, 255, 1),
        inset 0 2px 4px rgba(255, 255, 255, 0.6);
}

.sector-construction .sector-tag {
    background: linear-gradient(145deg, #E8F5E9, #A5D6A7);
    color: #2E7D32;
    box-shadow: 
        5px 5px 12px rgba(46, 139, 87, 0.3),
        -2px -2px 8px rgba(255, 255, 255, 0.9),
        inset 0 1px 2px rgba(255, 255, 255, 0.5);
}

.sector-construction .sector-tag:hover {
    background: linear-gradient(145deg, #A5D6A7, #81C784);
    box-shadow: 
        6px 6px 18px rgba(46, 139, 87, 0.4),
        -3px -3px 12px rgba(255, 255, 255, 1),
        inset 0 2px 4px rgba(255, 255, 255, 0.6);
}

.sector-alliance .sector-tag {
    background: linear-gradient(145deg, #FCE4EC, #F48FB1);
    color: #C2185B;
    box-shadow: 
        5px 5px 12px rgba(139, 0, 0, 0.25),
        -2px -2px 8px rgba(255, 255, 255, 0.9),
        inset 0 1px 2px rgba(255, 255, 255, 0.5);
}

.sector-alliance .sector-tag:hover {
    background: linear-gradient(145deg, #F48FB1, #F06292);
    box-shadow: 
        6px 6px 18px rgba(139, 0, 0, 0.35),
        -3px -3px 12px rgba(255, 255, 255, 1),
        inset 0 2px 4px rgba(255, 255, 255, 0.6);
}

/* 子公司 */
.subsidiaries {
    padding: 4rem 0;
}

.subsidiaries-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.subsidiary-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.card-niren {
    border-left: 4px solid var(--color-niren);
}

.card-kaikelok {
    border-left: 4px solid var(--color-kaikelok);
}

.card-ruihe {
    border-left: 4px solid var(--color-ruihe);
}

.card-header h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.card-tagline {
    color: var(--color-gray);
    margin-bottom: 1rem;
}

.service-items {
    margin: 1.5rem 0;
}

.service-item {
    margin-bottom: 1rem;
}

.service-label {
    font-weight: 600;
    color: var(--color-primary);
    display: block;
    margin-bottom: 0.3rem;
}

.btn-detail {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: var(--color-accent);
    color: var(--color-white);
    text-decoration: none;
    border-radius: 25px;
    transition: all 0.3s;
}

.btn-detail:hover {
    background: var(--color-primary);
}

/* 业务流程 */
.business-flow {
    padding: 4rem 0;
    background: var(--color-light-gray);
}

.flow-timeline {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.flow-item {
    flex: 1;
    text-align: center;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 220px;
    max-width: 280px;
}

.flow-item h3 {
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    white-space: nowrap;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.flow-item p {
    color: var(--color-accent);
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
    white-space: nowrap;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.flow-desc {
    font-size: 0.85rem;
    color: #666;
    line-height: 1.6;
    max-width: 180px;
    min-height: 50px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

/* 服务流程列表样式 */
.flow-desc-list {
    list-style: none;
    padding: 0;
    margin: 0 auto;
    text-align: left;
    width: 160px;
    display: grid;
    grid-template-rows: repeat(3, 28px);
    gap: 4px;
}

.flow-desc-list li {
    position: relative;
    padding-left: 16px;
    font-size: 0.85rem;
    color: #666;
    line-height: 28px;
    white-space: nowrap;
}

.flow-desc-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
}

.flow-number {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    background: var(--color-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
}

.flow-arrow {
    font-size: 2rem;
    color: var(--color-accent);
}

/* 数据看板 */
.stats-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--color-primary), #152e52);
    color: var(--color-white);
}

.stats-section .section-title {
    color: var(--color-white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--color-accent);
}

.stat-label {
    font-size: 1.2rem;
    margin-top: 1rem;
}

/* 快速入口 */
/* 合作伙伴 */
.partners {
    padding: 4rem 0;
    background: var(--color-white);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    align-items: center;
}

.partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    height: 120px;
}

.partner-logo:hover {
    transform: translateY(-5px);
}

.partner-logo img {
    max-width: 100%;
    max-height: 80px;
    width: auto;
    height: auto;
    object-fit: contain;
    opacity: 1;
    transition: all 0.3s ease;
}

/* 快速入口（保留备用） */
.quick-entry {
    padding: 4rem 0;
}

.entry-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.entry-card {
    background: var(--color-light-gray);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    text-decoration: none;
    color: var(--color-dark);
    transition: all 0.3s;
}

.entry-card:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-5px);
}

.entry-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* 页脚 */
.footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2rem;
    margin: 2rem 0;
}

.footer-column h4 {
    margin-bottom: 1rem;
    color: var(--color-accent);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: var(--color-white);
    text-decoration: none;
    opacity: 0.8;
}

.footer-column a:hover {
    opacity: 1;
    color: var(--color-accent);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* 响应式 */
@media (max-width: 1024px) {
    .core-services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .departments-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .sectors-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .core-services-grid,
    .departments-grid,
    .resources-grid,
    .subsidiaries-grid,
    .stats-grid,
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .partner-logo {
        height: 100px;
        padding: 1.5rem;
    }
    
    .partner-logo img {
        max-height: 60px;
    }
    
    .entry-grid {
        grid-template-columns: 1fr;
    }
    
    .sectors-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    /* 3D弧形卡片移动端适配 */
    .arc-cards {
        flex-direction: column;
        height: auto;
        gap: 1.5rem;
        padding: 2rem 1rem;
        perspective: none;
    }
    
    .arc-card {
        position: relative;
        left: auto !important;
        right: auto !important;
        width: 100%;
        max-width: 320px;
        height: auto;
        min-height: 280px;
        transform: none !important;
    }
    
    .arc-card:hover {
        transform: scale(1.02) !important;
    }
    
    .arc-card h3 {
        font-size: 1.4rem;
    }
    
    .arc-card li {
        font-size: 0.85rem;
        margin: 0.4rem 0;
        padding: 6px 12px;
    }
    
    .arc-num {
        font-size: 3.5rem;
    }
    
    .sub-contacts {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .sub-contact-card {
        padding: 2rem 1.5rem;
    }
    
    .dept-card {
        min-height: 240px;
    }
    
    .dept-card::before {
        width: 100%;
    }
    
    .hero-title {
        font-size: 2.2rem;
        letter-spacing: 0.05em;
    }
    
    .hero-badge .badge {
        font-size: 1rem;
        padding: 12px 30px;
        letter-spacing: 0.12em;
    }
    
    .hero-subtitle {
        font-size: 1.05rem;
        line-height: 2;
    }
    
    .flow-timeline {
        flex-direction: column;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }
    
    .core-service-card h3 {
        font-size: 1rem;
    }
    
    .dept-card h3 {
        font-size: 1.1rem;
    }
    
    .sector-card h3 {
        font-size: 1.5rem;
    }
    
    .sector-number {
        font-size: 3rem;
    }
}

/* ========== 内页通用样式 ========== */

/* 页面头部 */
.page-header {
    position: relative;
    margin-top: 70px;
    overflow: hidden;
    height: 200px;
    background: linear-gradient(135deg, #1a3a5c 0%, #0d2137 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
}

.page-header .container {
    position: relative;
    z-index: 2;
}

.page-header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
    z-index: 1;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #E5A83B;
}

.page-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    color: white;
}

.page-title {
    position: relative;
    z-index: 1;
    font-size: 3rem;
    margin-bottom: 1rem;
}

.page-subtitle {
    position: relative;
    z-index: 1;
    font-size: 1.3rem;
    opacity: 0.9;
}

/* 关于页面样式 */
.about-intro {
    padding: 5rem 0;
}

.intro-grid {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr; /* 左侧占比更大 */
    gap: 4rem; /* 增加间距 */
    align-items: center;
}

.intro-text {
    padding-right: 2rem;
}

.section-title-left {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 2rem;
}

.intro-paragraph {
    font-size: 1.1rem;
    line-height: 2; /* 增加行高 */
    margin-bottom: 1.5rem;
    color: #555;
    text-align: justify; /* 两端对齐 */
}

.intro-image img {
    width: 100%;
    border-radius: 10px;
    /* box-shadow: 0 5px 20px rgba(0,0,0,0.1); */
}

/* 愿景使命 */
.vision-mission {
    padding: 5rem 0;
    background: var(--color-light-gray);
}

.vm-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.vm-card {
    background: white;
    padding: 2.5rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
    transition: all 0.3s;
}

.vm-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.vm-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.vm-icon svg {
    width: 60px;
    height: 60px;
    stroke: var(--color-accent);
}

.vm-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.vm-card p {
    color: #666;
    line-height: 1.8;
}

/* 发展历程 */
.history-section {
    padding: 5rem 0;
}

.history-timeline {
    position: relative;
    max-width: 900px;
    margin: 3rem auto;
}

.history-timeline::before {
    content: '';
    position: absolute;
    left: 100px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-accent);
}

.history-item {
    display: flex;
    margin-bottom: 3rem;
    position: relative;
}

.history-year {
    width: 100px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-accent);
    flex-shrink: 0;
}

.history-content {
    margin-left: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
    flex: 1;
}

.history-content h3 {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.history-content p {
    color: #666;
}

/* 核心优势 */
.advantages-section {
    padding: 5rem 0;
    background: var(--color-light-gray);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 4列一行 */
    gap: 2rem;
}

.advantage-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
}

.advantage-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--color-accent);
    opacity: 0.3;
    margin-bottom: 1rem;
}

.advantage-card h3 {
    font-size: 1.3rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.advantage-card p {
    color: #666;
    line-height: 1.7;
}

/* 核心资源页面 */
.resource-detail {
    padding: 5rem 0;
}

.resource-detail.gray-bg {
    background: var(--color-light-gray);
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.detail-grid.reverse {
    direction: rtl;
}

.detail-grid.reverse > * {
    direction: ltr;
}

.detail-content {
    padding: 2rem;
}

.detail-desc {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
    margin-bottom: 2rem;
}

.detail-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.resource-types,
.expert-categories,
.ip-showcase,
.fund-info {
    margin-top: 2rem;
}

.type-item,
.expert-cat,
.ip-category {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.type-item h4,
.expert-cat h4,
.ip-category h4 {
    color: var(--color-primary);
    margin-bottom: 0.8rem;
}

.expert-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.fund-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

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

.fund-label {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.fund-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--color-accent);
}

.fund-services h4 {
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.fund-services ul,
.resource-types ul,
.ip-showcase ul {
    list-style: none;
}

.fund-services li,
.ip-showcase li {
    padding: 0.5rem 0;
    color: #555;
}

/* 资源对接CTA */
.resource-cta {
    padding: 4rem 0;
    text-align: center;
    background: var(--color-primary);
    color: white;
}

.resource-cta h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.resource-cta p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.btn-cta {
    display: inline-block;
    padding: 1rem 3rem;
    background: var(--color-accent);
    color: var(--color-primary);
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1.1rem;
    transition: all 0.3s;
}

.btn-cta:hover {
    background: white;
    transform: scale(1.05);
}

/* 业务矩阵页面 */
.business-overview {
    padding: 4rem 0;
    text-align: center;
}

.overview-text {
    max-width: 900px;
    margin: 2rem auto;
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
}

.subsidiary-detail {
    padding: 5rem 0;
    overflow: hidden;
}

.subsidiary-detail.gray-bg {
    background: var(--color-light-gray);
}

/* 让容器更宽 */
.subsidiary-detail > .container {
    max-width: 100%;
    padding: 0 3%;
    margin: 0 auto;
}

/* 4列布局：图片2列 + 文字描述1列 + 核心业务1列 */
.subsidiary-grid {
    display: grid;
    grid-template-columns: 1.4fr 1.2fr 1fr;  /* 图片1.4份 + 描述1.2份 + 核心业务1份 */
    gap: 0;
    align-items: stretch;
}

/* 反转布局也统一为左图右字 */
.subsidiary-grid.reverse {
    grid-template-columns: 1.4fr 1.2fr 1fr;
}

/* 图片区域 - 占2列 */
.subsidiary-grid .subsidiary-image {
    width: 100%;
    height: 100%;
    min-height: 380px;
    overflow: hidden;
    grid-column: 1;
    grid-row: 1;
    padding: 1.5rem;
}

.subsidiary-grid .subsidiary-image img {
    width: 100%;
    height: 100%;
    min-height: 350px;
    object-fit: cover;
    display: block;
    border-radius: 100px;
}

/* 文字描述区域 - 占1列 */
.subsidiary-grid .subsidiary-content {
    padding: 2rem 2.5rem;
    grid-column: 2;
    grid-row: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* 核心业务区域 - 占1列 */
.subsidiary-grid .subsidiary-services {
    padding: 2rem 2.5rem;
    grid-column: 3;
    grid-row: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* 反转布局保持相同位置 */
.subsidiary-grid.reverse .subsidiary-image {
    grid-column: 1;
}

.subsidiary-grid.reverse .subsidiary-content {
    grid-column: 2;
}

.subsidiary-grid.reverse .subsidiary-services {
    grid-column: 3;
}

.subsidiary-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    color: white;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.badge-primary {
    background: var(--color-primary);
}

.badge-niren {
    background: var(--color-niren);
}

.badge-kaikelok {
    background: var(--color-kaikelok);
}

.badge-ruihe {
    background: #FF6600;
}

.badge-xiaoniqulv {
    background: #1E90FF;
}

.subsidiary-content h2 {
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1.2rem;
    line-height: 1.3;
}

.subsidiary-tagline {
    font-size: 1.6rem;
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: 2rem;
}

.subsidiary-desc {
    font-size: 1.2rem;
    line-height: 2;
    color: #555;
    margin-bottom: 0;
}

/* 核心业务区域样式 */
.subsidiary-services .service-list {
    margin: 0;
}

.service-list h4 {
    color: var(--color-primary);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 1.8rem;
}

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

.service-list li {
    padding: 0.9rem 0;
    color: #555;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
}

.check-icon {
    color: var(--color-accent);
    margin-right: 0.8rem;
    font-weight: bold;
    font-size: 1.3rem;
}

.btn-detail {
    display: inline-block;
    margin-top: 1.5rem;
    padding: 0.8rem 2rem;
    background: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s;
}

.btn-detail:hover {
    background: var(--color-accent);
    color: var(--color-primary);
}

/* 协同优势 */
.synergy-section {
    padding: 5rem 0;
}

.synergy-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.synergy-card {
    text-align: center;
    padding: 2rem;
}

.synergy-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--color-accent);
    opacity: 0.5;
    margin-bottom: 1rem;
}

.synergy-card h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.synergy-card p {
    color: #666;
    line-height: 1.7;
}

/* 子公司详情页 */
.company-intro {
    padding: 5rem 0;
}

.services-section {
    padding: 5rem 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
    transition: all 0.3s;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.service-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.service-icon svg {
    width: 30px;
    height: 30px;
    stroke: white;
}

.service-card h3 {
    text-align: center;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.service-card ul {
    list-style: none;
}

.service-card li {
    padding: 0.5rem 0;
    color: #666;
    font-size: 0.95rem;
}

/* 技术优势/合作品牌 */
.tech-advantages,
.brands-section,
.partners-section {
    padding: 5rem 0;
}

.tech-grid,
.brands-categories {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.tech-item,
.brand-category,
.partner-cat {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
    text-align: center;
}

.tech-item h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.tech-item p {
    color: #666;
    line-height: 1.7;
}

/* 案例展示 */
.cases-showcase {
    padding: 5rem 0;
}

.cases-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.case-item img {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.case-item h3 {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.case-item p {
    color: #666;
    line-height: 1.7;
}

/* CTA区域 */
.cta-section {
    padding: 5rem 0;
    text-align: center;
    background: linear-gradient(135deg, var(--color-primary), #1a3a5c);
    color: white;
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* 案例页面 */
.filter-section {
    padding: 3rem 0;
    background: var(--color-light-gray);
    margin-top: 70px;
}

.filter-tags {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-tag {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: white;
    border: 2px solid #ddd;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
    text-decoration: none;
    color: #333;
}

.filter-tag:hover,
.filter-tag.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    text-decoration: none;
}

.cases-section {
    padding: 5rem 0;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.case-card {
    display: block;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
    transition: all 0.3s;
    text-decoration: none;
    color: inherit;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    text-decoration: none;
}

.case-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

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

.case-overlay {
    position: absolute;
    top: 10px;
    right: 10px;
}

.case-tag {
    padding: 0.5rem 1rem;
    background: var(--color-primary);
    color: white;
    border-radius: 20px;
    font-size: 0.9rem;
}

.case-content {
    padding: 1.5rem;
}

.case-content h3 {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.case-location {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.case-desc {
    color: #555;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.case-services {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.service-badge {
    padding: 0.3rem 0.8rem;
    background: var(--color-light-gray);
    color: var(--color-primary);
    border-radius: 15px;
    font-size: 0.85rem;
}

/* 案例卡片悬浮遮罩 */
.case-hover-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 58, 92, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

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

.case-hover-overlay .view-more {
    color: white;
    font-size: 1rem;
    padding: 0.8rem 1.5rem;
    border: 2px solid var(--color-accent);
    border-radius: 30px;
    transition: all 0.3s;
}

.case-card:hover .case-hover-overlay .view-more {
    background: var(--color-accent);
    color: var(--color-primary);
}

/* 查看更多按钮 */
.btn-more {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    border-radius: 30px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-more:hover {
    background: var(--color-primary);
    color: white;
    text-decoration: none;
}

.no-data {
    text-align: center;
    padding: 60px 20px;
    color: #999;
    font-size: 16px;
    grid-column: 1 / -1;
}

.cases-stats {
    padding: 4rem 0;
    background: var(--color-primary);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 新闻页面 */
.news-filter {
    padding: 2rem 0;
    background: var(--color-light-gray);
    margin-top: 70px;
}

.filter-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.filter-tab {
    padding: 0.8rem 2rem;
    background: white;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
}

.filter-tab:hover,
.filter-tab.active {
    background: var(--color-primary);
    color: white;
}

.news-section {
    padding: 5rem 0;
}

.news-list {
    max-width: 1000px;
    margin: 0 auto;
}

.news-item {
    display: flex;
    gap: 2rem;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 2rem;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
    transition: all 0.3s;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.news-image {
    position: relative;
    width: 300px;
    flex-shrink: 0;
}

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

.news-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 0.5rem 1rem;
    background: var(--color-primary);
    color: white;
    border-radius: 20px;
    font-size: 0.9rem;
}

.news-content {
    flex: 1;
    padding: 2rem;
}

.news-title {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.news-meta {
    display: flex;
    gap: 2rem;
    margin-bottom: 1rem;
    color: #999;
    font-size: 0.9rem;
}

.news-desc {
    color: #555;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.news-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
}

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

.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 3rem;
}

.page-btn {
    padding: 0.8rem 1.2rem;
    background: white;
    border: 1px solid #ddd;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s;
}

.page-btn:hover:not(:disabled),
.page-btn.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 合作加盟页面 */
.cooperation-intro {
    padding: 5rem 0;
    text-align: center;
}

.section-desc {
    max-width: 800px;
    margin: 1rem auto 3rem;
    font-size: 1.1rem;
    color: #666;
}

.coop-advantages {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.coop-adv-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
    text-align: center;
}

.coop-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.coop-adv-card h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.coop-adv-card p {
    color: #666;
    line-height: 1.7;
}

.cooperation-modes {
    padding: 5rem 0;
}

.modes-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.mode-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
    transition: all 0.3s;
}

.mode-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.mode-header {
    padding: 2rem;
    color: white;
    text-align: center;
}

.mode-header h3 {
    font-size: 1.3rem;
}

.mode-body {
    padding: 2rem;
}

.mode-desc {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.mode-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.mode-list li {
    padding: 0.5rem 0;
    color: #555;
}

.mode-suitable {
    font-size: 0.9rem;
    color: var(--color-accent);
    font-weight: 500;
}

.cooperation-process {
    padding: 5rem 0;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1000px;
    margin: 3rem auto;
}

.process-step {
    text-align: center;
    flex: 1;
}

.step-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--color-accent);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.process-arrow {
    font-size: 2rem;
    color: var(--color-accent);
    margin: 0 1rem;
}

.process-step h3 {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.process-step p {
    color: #666;
    font-size: 0.9rem;
}

.cooperation-form {
    padding: 5rem 0;
}

.coop-form {
    max-width: 800px;
    margin: 3rem auto;
    background: white;
    padding: 3rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
}

.form-group textarea {
    resize: vertical;
}

.btn-submit {
    width: 100%;
    padding: 1rem;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-submit:hover {
    background: var(--color-accent);
    color: var(--color-primary);
    transform: translateY(-2px);
}

/* 联系我们页面 */
.contact-info-section {
    padding: 5rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-card {
    text-align: center;
    padding: 2.5rem 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.contact-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 40px;
    height: 40px;
    stroke: white;
}

.contact-card h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.contact-card p {
    color: #666;
    line-height: 1.8;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.subsidiaries-contact {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.sub-contacts {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.sub-contact-card {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 179, 0, 0.1);
}

.sub-contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-niren), var(--color-kaikelok), var(--color-ruihe));
}

.sub-contact-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
    border-color: var(--color-accent);
}

.sub-badge {
    display: inline-block;
    padding: 0.7rem 1.5rem;
    border-radius: 25px;
    color: white;
    font-weight: 600;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.sub-contact-card h3 {
    color: var(--color-primary);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    font-weight: 600;
    line-height: 1.4;
}

.sub-contact-card p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    font-size: 0.95rem;
}

.sub-contact-card p:before {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-right: 10px;
    background-size: contain;
    background-repeat: no-repeat;
    flex-shrink: 0;
    opacity: 0.6;
}

.sub-contact-card p:nth-of-type(1):before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23888'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M3 5a2 2 0 012-2h3.28a1 1 0 01.948.684l1.498 4.493a1 1 0 01-.502 1.21l-2.257 1.13a11.042 11.042 0 005.516 5.516l1.13-2.257a1 1 0 011.21-.502l4.493 1.498a1 1 0 01.684.949V19a2 2 0 01-2 2h-1C9.716 21 3 14.284 3 6V5z'/%3E%3C/svg%3E");
}

.sub-contact-card p:nth-of-type(2):before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23888'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M3 8l7.89 4.26a2 2 0 002.22 0L21 8M5 19h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z'/%3E%3C/svg%3E");
}

.sub-contact-card p:nth-of-type(3):before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23888'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M17.657 16.657L13.414 20.9a1.998 1.998 0 01-2.827 0l-4.244-4.243a8 8 0 1111.314 0z'/%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M15 11a3 3 0 11-6 0 3 3 0 016 0z'/%3E%3C/svg%3E");
}

.message-form-section {
    padding: 5rem 0;
}

.message-form {
    max-width: 800px;
    margin: 3rem auto;
    background: white;
    padding: 3rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.map-section {
    padding: 5rem 0;
    background: var(--color-light-gray);
}

.map-container {
    margin-top: 2rem;
}

.map-placeholder {
    height: 400px;
    background: white;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 2px dashed #ddd;
}

.map-placeholder p {
    font-size: 1.5rem;
    color: #999;
}

.map-tip {
    font-size: 1rem;
    color: #aaa;
    margin-top: 0.5rem;
}

.map-address {
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-top: 1rem;
}

.quick-contact {
    padding: 4rem 0;
    text-align: center;
}

.quick-contact h2 {
    margin-bottom: 2rem;
}

.quick-btns {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.quick-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 2rem 3rem;
    background: white;
    border: 2px solid var(--color-primary);
    border-radius: 10px;
    color: var(--color-primary);
    text-decoration: none;
    transition: all 0.3s;
}

.quick-btn:hover {
    background: var(--color-primary);
    color: white;
}

.quick-btn svg {
    width: 40px;
    height: 40px;
}

/* =============================================
   页脚 - 高级重构版
   ============================================= */
.footer {
    background: linear-gradient(180deg, #0A1E3C 0%, #051121 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

/* 顶部装饰线 */
.footer-decoration {
    position: relative;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--color-accent) 50%, transparent 100%);
}

.decoration-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent 0%, rgba(212,175,55,0.5) 50%, transparent 100%);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 1;
    }
}

/* 主要内容区 */
.footer-main {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 80px;
    padding: 80px 0 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* 左侧品牌区 */
.footer-brand-section {
    padding-right: 40px;
}

.footer-logo-large {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.logo-icon-large {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-accent), #f0c674);
    color: var(--color-primary);
    font-size: 2.5rem;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(255, 179, 0, 0.3);
}

.logo-text-group {
    flex: 1;
}

.logo-title {
    font-size: 2rem;
    font-weight: 900;
    color: white;
    margin-bottom: 5px;
    letter-spacing: 0.05em;
}

.logo-subtitle {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.brand-slogan {
    font-size: 1.1rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 40px;
    padding-left: 20px;
    border-left: 3px solid var(--color-accent);
}

/* 社交媒体 */
.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.6);
    transition: all 0.3s;
}

.social-link:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(255, 179, 0, 0.3);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

/* 右侧导航区 */
.footer-nav-section {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

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

.footer-column {
    /* 单列样式 */
}

.column-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.column-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--color-accent);
}

.column-links {
    list-style: none;
}

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

.column-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s;
    display: inline-block;
}

.column-links a:hover {
    color: var(--color-accent);
    padding-left: 5px;
}

/* 联系方式卡片 */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.contact-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s;
}

.contact-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-accent);
    transform: translateY(-3px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--color-accent), #f0c674);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--color-primary);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.contact-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

.contact-value {
    font-size: 1rem;
    font-weight: 600;
    color: white;
}

/* 二维码卡片 */
.qrcode-card {
    flex-direction: column;
    text-align: center;
    padding: 20px;
}

.qrcode-wrapper {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    overflow: hidden;
    border: 3px solid var(--color-accent);
    box-shadow: 0 5px 15px rgba(255, 179, 0, 0.3);
}

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

.qrcode-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 10px;
}

/* 底部版权区 */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 0;
}

.footer-bottom-left {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.copyright {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
}

.icp {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer-link {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

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

.divider {
    color: rgba(255, 255, 255, 0.3);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .intro-grid,
    .detail-grid,
    .modes-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .subsidiary-detail > .container {
        padding: 0 20px;
    }
    
    .subsidiary-grid,
    .subsidiary-grid.reverse {
        grid-template-columns: 1fr 1fr;
        gap: 0;
    }
    
    .subsidiary-grid .subsidiary-image {
        grid-column: 1 / 3;
        grid-row: 1;
        min-height: 280px;
    }
    
    .subsidiary-grid .subsidiary-image img {
        min-height: 280px;
    }
    
    .subsidiary-grid .subsidiary-content {
        grid-column: 1;
        grid-row: 2;
        padding: 1.5rem;
    }
    
    .subsidiary-grid .subsidiary-services {
        grid-column: 2;
        grid-row: 2;
        padding: 1.5rem;
    }
}

@media (max-width: 640px) {
    .subsidiary-grid,
    .subsidiary-grid.reverse {
        grid-template-columns: 1fr;
    }
    
    .subsidiary-grid .subsidiary-image {
        grid-column: 1;
        grid-row: 1;
    }
    
    .subsidiary-grid .subsidiary-content {
        grid-column: 1;
        grid-row: 2;
    }
    
    .subsidiary-grid .subsidiary-services {
        grid-column: 1;
        grid-row: 3;
    }
    
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .sub-contacts {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .sub-contact-card {
        padding: 2rem 1.5rem;
    }
    
    .vm-grid,
    .advantages-grid,
    .services-grid,
    .tech-grid,
    .brands-categories,
    .cases-grid,
    .stats-grid,
    .synergy-grid,
    .coop-advantages {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-steps {
        flex-direction: column;
    }
    
    .process-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }
    
    /* 页脚响应式 */
    .footer-main {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .footer-brand-section {
        padding-right: 0;
        text-align: center;
    }
    
    .footer-logo-large {
        justify-content: center;
    }
    
    .brand-slogan {
        border-left: none;
        padding-left: 0;
        border-top: 3px solid var(--color-accent);
        padding-top: 20px;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    /* 基础容器 */
    .container {
        padding: 0 15px;
    }
    
    /* 导航栏 */
    .navbar {
        height: 60px;
    }
    
    .nav-content {
        padding: 0 15px;
    }
    
    .logo-icon {
        width: 35px;
        height: 35px;
        font-size: 1.2rem;
    }
    
    .logo-text {
        font-size: 1.2rem;
    }
    
    .logo-img {
        height: 35px;
        max-width: 150px;
    }
    
    /* 汉堡菜单显示 */
    .hamburger-menu {
        display: flex;
    }
    
    /* 移动端菜单 */
    .nav-menu {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 280px;
        height: calc(100vh - 60px);
        background: var(--color-primary);
        flex-direction: column;
        padding: 20px 0;
        transition: left 0.3s;
        overflow-y: auto;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3);
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-menu .nav-link {
        display: block;
        padding: 15px 25px;
        color: white;
        font-size: 1rem;
    }
    
    .nav-menu .nav-link:hover {
        background: rgba(255, 179, 0, 0.1);
        color: var(--color-accent);
    }
    
    /* 移动端下拉菜单 */
    .nav-dropdown {
        position: relative;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: rgba(0,0,0,0.1);
        border-radius: 0;
        margin-left: 20px;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }
    
    .nav-dropdown:hover .dropdown-menu,
    .nav-dropdown.active .dropdown-menu {
        max-height: 300px;
    }
    
    .dropdown-menu a {
        padding: 10px 20px;
        font-size: 0.9rem;
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    
    /* 菜单遮罩 */
    .nav-menu::before {
        content: '';
        position: fixed;
        top: 60px;
        left: 0;
        width: 100vw;
        height: calc(100vh - 60px);
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s;
        z-index: -1;
    }
    
    .nav-menu.active::before {
        opacity: 1;
        visibility: visible;
    }
    
    /* 轮播图 */
    .hero-slider {
        height: 600px;
        margin-top: 60px;
    }
    
    .hero-content {
        bottom: 80px;
    }
    
    .hero-title {
        font-size: 1.8rem !important;
        margin-bottom: 1rem;
        letter-spacing: 0.04em;
    }
    
    .hero-badge .badge {
        font-size: 0.95rem;
        padding: 10px 25px;
        letter-spacing: 0.1em;
    }
    
    .hero-subtitle {
        font-size: 0.95rem !important;
        line-height: 1.9;
    }
    
    .dept-card {
        min-height: 220px;
        padding: 1.5rem;
    }
    
    .dept-card:hover .dept-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        top: 1.5rem;
        left: 1.5rem;
    }
    
    .dept-card h3 {
        font-size: 1.1rem;
    }
    
    .dept-card:hover h3 {
        font-size: 1.2rem;
        top: 2rem;
        left: 5rem;
    }
    
    .dept-card ul {
        top: 4.5rem;
        left: 1.5rem;
        right: 1.5rem;
    }
    
    .dept-card li {
        font-size: 0.9rem;
        line-height: 1.6;
        padding: 0.4rem 0;
    }
    
    .sector-card {
        padding: 2rem;
    }
    
    .sector-card h3 {
        font-size: 1.5rem;
    }
    
    .sector-number {
        font-size: 3rem;
    }
    
    /* 板块标题 */
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }
    
    .section-title-left {
        font-size: 1.8rem;
    }
    
    /* 简介区 */
    .intro-section {
        padding: 3rem 0;
    }
    
    .intro-text {
        font-size: 1rem;
        text-align: left;
    }
    
    /* 核心资源 */
    .core-resources {
        padding: 3rem 0;
    }
    
    .resources-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .resource-card {
        padding: 1.5rem;
    }
    
    .card-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 1rem;
    }
    
    .card-icon svg {
        width: 30px;
        height: 30px;
    }
    
    /* 子公司 */
    .subsidiaries {
        padding: 3rem 0;
    }
    
    .subsidiaries-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .subsidiary-card {
        padding: 1.5rem;
    }
    
    /* 业务流程 */
    .business-flow {
        padding: 3rem 0;
    }
    
    .flow-timeline {
        flex-direction: column;
        gap: 2rem;
    }
    
    .flow-item {
        padding: 0;
    }
    
    .flow-number {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
        margin: 0;
    }
    
    /* 数据看板 */
    .stats-section {
        padding: 3rem 0;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .stat-item {
        padding: 1.5rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .stat-label {
        font-size: 0.9rem;
    }
    
    /* 快速入口 */
    .quick-entry {
        padding: 3rem 0;
    }
    
    .entry-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .entry-card {
        padding: 1.5rem;
    }
    
    /* 网格布局统一 */
    .vm-grid,
    .advantages-grid,
    .services-grid,
    .tech-grid,
    .brands-categories,
    .cases-grid,
    .synergy-grid,
    .coop-advantages,
    .modes-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    /* 新闻列表 */
    .news-item {
        flex-direction: column;
    }
    
    .news-image {
        width: 100%;
        height: 200px;
    }
    
    .news-content {
        padding: 1.5rem;
    }
    
    /* 表单 */
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .coop-form,
    .message-form {
        padding: 2rem 1.5rem;
    }
    
    /* 快速按钮 */
    .quick-btns {
        flex-direction: column;
        align-items: stretch;
    }
    
    /* 页面头部 */
    .page-title {
        font-size: 2rem;
    }
    
    .page-subtitle {
        font-size: 1rem;
    }
    
    /* 页脚移动端 */
    .footer-main {
        padding: 40px 0 30px;
        gap: 30px;
    }
    
    .footer-brand-section {
        padding-right: 0;
    }
    
    .footer-logo-large {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .logo-icon-large {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }
    
    .logo-title {
        font-size: 1.5rem;
    }
    
    .logo-subtitle {
        font-size: 0.75rem;
    }
    
    .brand-slogan {
        font-size: 1rem;
        border-left: none;
        padding-left: 0;
        border-top: 3px solid var(--color-accent);
        padding-top: 15px;
        margin-bottom: 30px;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .social-link {
        width: 40px;
        height: 40px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .column-title {
        font-size: 1rem;
        margin-bottom: 15px;
    }
    
    .contact-cards {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .contact-card {
        padding: 20px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
        padding: 20px 0;
    }
    
    .footer-bottom-left {
        align-items: center;
    }
    
    .footer-bottom-right {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .copyright,
    .icp,
    .footer-link {
        font-size: 0.85rem;
    }
}

/* 超小屏幕优化 */
@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem !important;
        letter-spacing: 0.03em;
    }
    
    .hero-badge .badge {
        font-size: 0.85rem;
        padding: 8px 20px;
        letter-spacing: 0.08em;
    }
    
    .hero-subtitle {
        font-size: 0.85rem !important;
        line-height: 1.8;
    }
    
    .partners-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .partner-logo {
        height: 80px;
        padding: 1rem;
    }
    
    .partner-logo img {
        max-height: 50px;
    }
    
    .dept-card {
        min-height: 200px;
        padding: 1.2rem;
    }
    
    .dept-icon {
        font-size: 3rem;
    }
    
    .dept-card:hover .dept-icon {
        width: 45px;
        height: 45px;
        font-size: 1.3rem;
        top: 1rem;
        left: 1rem;
    }
    
    .dept-card h3 {
        font-size: 1rem;
    }
    
    .dept-card:hover h3 {
        font-size: 1.1rem;
        top: 1.5rem;
        left: 4.5rem;
    }
    
    .dept-card ul {
        top: 4rem;
        left: 1rem;
        right: 1rem;
    }
    
    .dept-card li {
        font-size: 0.85rem;
        line-height: 1.6;
        padding: 0.35rem 0;
    }
    
    .sector-card {
        padding: 1.5rem;
    }
    
    .sector-card h3 {
        font-size: 1.3rem;
    }
    
    .sector-number {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .flow-number {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}