/* ========================================
   金融科技公司官网样式
   设计风格：蓝色科技感
   ======================================== */

/* CSS 变量定义 */
:root {
    /* 主色调 */
    --primary-color: #2069f7;
    --primary-dark: #004d99;
    --primary-light: #3399ff;
    --primary-gradient: linear-gradient(135deg, #2069f7 0%, #038de9 100%);
    
    /* 辅助色 */
    --secondary-color: #00d4ff;
    --accent-color: #00ffcc;
    
    /* 文字颜色 */
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-light: #999999;
    --text-white: #ffffff;
    
    /* 背景色 */
    --bg-primary: #ffffff;
    --bg-secondary: #f5f8fc;
    --bg-dark: #0a1628;
    --bg-gradient: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
    
    /* 边框和阴影 */
    --border-color: #e5e5e5;
    --shadow-sm: 0 2px 8px rgba(0, 102, 204, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 102, 204, 0.12);
    --shadow-lg: 0 8px 40px rgba(0, 102, 204, 0.16);
    
    /* 间距 */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 60px;
    --spacing-2xl: 80px;
    
    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 容器宽度 */
    --container-width: 1400px;
    --container-padding: 20px;
}

/* ========================================
   基础样式重置
   ======================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

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

ul, ol {
    list-style: none;
}

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

/* ========================================
   通用容器
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ========================================
   通用按钮样式
   ======================================== */
.btn-primary {
    display: inline-block;
    padding: 12px 32px;
    background: var(--primary-gradient);
    color: var(--text-white);
    font-size: 16px;
    font-weight: 500;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.4);
}
.btn-md {
  border-radius: var(--radius-sm);;
  padding: 8px 24px;
  font-size: 18px;
}
.btn-large {
    border-radius: var(--radius-sm);;
    padding: 12px 30px;
    font-size: 18px;
}

/* ========================================
   Header 导航栏
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.header-container {
    display: flex;
    align-items: center;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    height: 80px;
}

.logo {
    flex-shrink: 0;
    margin-right: 40px; /* 让Logo和导航之间保持一定间距 */
}

.logo-img {
    height: 65px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-item {
    position: relative;
}

.nav-item > a {
    display: block;
    padding: 12px 20px;
    font-size: 16px;
    font-weight: 500;
    color: #333333;
    transition: color var(--transition-fast);
}

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

/* Header 按钮组 */
.header-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto; /* 推到最右侧，紧贴按钮组 */
    margin-right: 0; /* 与按钮组紧贴 */
    color: var(--primary-color);
    font-size: 16px;
    font-weight: 600;
}

.phone-icon {
    width: 22px;
    height: 22px;
    color: #1766FF;
}

.phone-number {
    color: #1766FF;
    letter-spacing: 1px;
    font-weight: bold;
    display: inline-flex;
}

.phone-label {
    display: inline-block;
}

.char-animate {
    display: inline-block;
    animation: charZoomIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    transform: scale(0);
}

@keyframes charZoomIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
        opacity: 1;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-left: auto; /* 关键：将按钮组推向最右侧 */
    font-size: 18px;
}

.btn-text {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    padding: 8px 16px;
    transition: color var(--transition-fast);
}

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

.btn-sm {
    padding: 8px 20px;
    font-size: 14px;
    border-radius: var(--radius-sm);
}

/* 下拉菜单 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 90%;
    transform: translateX(-50%) translateY(10px);
    min-width: 160px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    padding: 8px 0;
}

.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 10px 20px;
    font-size: 14px;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
    color: var(--primary-color);
    background: var(--bg-secondary);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: all var(--transition-fast);
}

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

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

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

/* ========================================
   轮播图区域
   ======================================== */
.hero-carousel {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    background: var(--bg-dark);
}

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

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow);
}

.carousel-slide.active {
    opacity: 1;
    visibility: visible;
}

.carousel-video,
.carousel-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carousel-video {
    display: none; /* 默认隐藏，等待 JS 确认可播放 */
}

.carousel-img.fallback {
    display: block; /* 默认显示图片作为底色/备份 */
}

.carousel-slide[data-type="video"] .carousel-img:not(.fallback) {
    display: none;
}

.carousel-content {
    position: absolute;
    top: 50%;
    left: var(--container-padding); /* 对应容器的边距 */
    transform: translateY(-50%);
    text-align: left;
    z-index: 10;
    max-width: 600px;
}

.carousel-content h2 {
    font-size: 45px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 0.8s ease;
}

.carousel-content p {
    font-size: 24px;
    margin-bottom: 40px;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.carousel-content .btn-primary {
    animation: fadeInUp 0.8s ease 0.4s both;
}

/* 轮播进度指示器 */
.carousel-progress {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 20;
}

.progress-item {
    width: 50px; /* 默认很小的宽度 */
    height: 6px;
    background: rgba(0, 102, 204, 0.2);
    border-radius: 3px;
    overflow: hidden;
    cursor: pointer;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1), background var(--transition-fast);
}

.progress-item:hover {
    background: rgba(0, 102, 204, 0.4);
}

.progress-item.active {
    width: 80px; /* 激活时变长 */
}

.progress-bar {
    display: block;
    width: 0;
    height: 100%;
    background: var(--primary-color);
    border-radius: 3px;
    transition: width 0.1s linear;
}

.progress-item.active .progress-bar {
    animation: progressFill 10s linear forwards;
}

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

/* 轮播控制按钮 */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    color: var(--text-white);
    z-index: 20;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.carousel-btn svg {
    width: 24px;
    height: 24px;
}

.carousel-btn.prev {
    left: 40px;
}

.carousel-btn.next {
    right: 40px;
}

/* ========================================
   核心业务能力
   ======================================== */
.core-capabilities {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-gradient);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary-gradient);
    margin: 16px auto 0;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.capability-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.capability-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

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

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

.card-icon {
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.card-icon svg {
    width: 100%;
    height: 100%;
}

.card-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.card-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.card-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: var(--spacing-md);
}

.card-features li {
    padding: 6px 14px;
    background: var(--bg-secondary);
    color: var(--primary-color);
    font-size: 13px;
    border-radius: 20px;
}

.card-link {
    font-size: 15px;
    color: var(--primary-color);
    font-weight: 500;
    transition: all var(--transition-fast);
}

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

/* ========================================
   公司简介
   ======================================== */
.company-intro {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-primary);
}

.intro-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.intro-content {
    padding-top: var(--spacing-lg);
    padding-right: var(--spacing-lg);
}

.intro-title {
    text-align: center;
    font-size: 40px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.intro-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary-gradient);
    margin: 16px auto 0;
    border-radius: 2px;
}

.intro-subtitle {
    text-align: center;
    font-weight: 500;
    font-size: 18px;
    color: #333;
    margin-bottom: var(--spacing-md);
}

.intro-text {
    margin-bottom: var(--spacing-lg);
}

.intro-text p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.intro-stats {
    display: flex;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: #015AFF;
    line-height: 1.2;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.intro-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.building-img {
    width: 100%;
    height: auto;
    transition: transform var(--transition-slow);
}

.intro-image:hover .building-img {
    transform: scale(1.05);
}

/* ========================================
   使命愿景价值观 Banner
   ======================================== */
.mission-vision-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
}

.mvv-item {
    position: relative;
    height: 220px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-lg);
    transition: transform var(--transition-normal);
    opacity: 0;
    transform: translateY(30px);
}

.mvv-item.animate-in {
    animation: mvvFadeInUp 0.8s ease forwards;
}

.mvv-item.animate-in:nth-child(1) {
    animation-delay: 0s;
}

.mvv-item.animate-in:nth-child(2) {
    animation-delay: 0.2s;
}

.mvv-item.animate-in:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes mvvFadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mvv-item:hover {
    transform: translateY(-8px);
}

.mvv-item:hover .mvv-text,
.mvv-item:hover .mvv-text-multi {
    transform: scale(1.05);
}

.mvv-item:hover .mvv-title {
    color: #fff;
    opacity: 1;
}

.mvv-mission .mvv-bg {
    background: linear-gradient(135deg, #2069f7 40%, #4881f3 100%);
}

.mvv-values .mvv-bg {
    background: linear-gradient(135deg, #1973f1 40%, #6c93e2 100%);
}

.mvv-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    background-size: 200% 200%;
    opacity: 0.95;
    z-index: 1;
    animation: gradientFlow 10s ease infinite;
}

.mvv-yinhao {
    position: absolute;
    top: 30px;
    left: 20px;
    z-index: 2;
    opacity: 0.3;
}

.mvv-yinhao img {
    width: 40px;
    height: auto;
    display: block;
}

@keyframes gradientFlow {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}


.mvv-content {
    position: relative;
    z-index: 2;
    color: var(--text-white);
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.mvv-title {
    position: absolute;
    bottom: -20px;
    left: 0px;
    font-size: 15px;
    font-weight: 600;
    margin: 0;
    opacity: 0.9;
    transition: all var(--transition-normal);
    padding-bottom: 12px;
}

.mvv-underline {
    position: absolute;
    bottom: 5px;
    left: 2px;
    width: 60px;
    height: 10px;
    background: linear-gradient(90deg, #ff6b9d 0%, #ff8fab 100%);
    transform: rotate(-2deg);
    border-radius: 2px;
    display: block;
}

.mvv-text {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: 1px;
    text-align: center;
    margin: 0;
    padding: 0 var(--spacing-md);
    transition: transform var(--transition-normal);
}

.mvv-text-multi {
    text-align: center;
    transition: transform var(--transition-normal);
}

.mvv-text-multi p {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.8;
    letter-spacing: 2px;
    margin: 0;
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, transparent 100%);
    pointer-events: none;
}

/* ========================================
   合作客户
   ======================================== */
.partners {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-secondary);
}

.partners-carousel {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    overflow: hidden;
    position: relative;
    padding: 20px 0;
}

/* 渐变遮罩效果，增加两侧淡出感 */
.partners-carousel::before,
.partners-carousel::after {
    content: '';
    position: absolute;
    top: 0;
    width: 100px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.partners-carousel::before {
    left: 0;
    background: linear-gradient(to right, var(--bg-secondary) 0%, transparent 100%);
}

.partners-carousel::after {
    right: 0;
    background: linear-gradient(to left, var(--bg-secondary) 0%, transparent 100%);
}

.partners-row {
    display: flex;
    overflow: hidden;
    width: 100%;
}

.partners-track {
    display: flex;
    gap: var(--spacing-md);
    width: max-content;
}

.to-left .partners-track {
    animation: scrollLeft 40s linear infinite;
}

.to-right .partners-track {
    animation: scrollRight 40s linear infinite;
}

/* 鼠标悬停时暂停动画 */
.partners-track:hover {
    animation-play-state: paused;
}

@keyframes scrollLeft {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-50% - var(--spacing-md)/2)); }
}

@keyframes scrollRight {
    0% { transform: translateX(calc(-50% - var(--spacing-md)/2)); }
    100% { transform: translateX(0); }
}

.partner-item {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100px;
    width: 220px; /* 轮播项固定宽度 */
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.partner-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.partner-item img {
    max-height: 130px;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.8;
    transition: all var(--transition-normal);
}

.partner-item:hover img {
    filter: grayscale(0);
    opacity: 1;
}

.partners-note {
    text-align: left;
    font-size: 13px;
    color: var(--text-light);
    margin-top: var(--spacing-md);
    opacity: 0.8;
}

/* ========================================
   CTA Banner
   ======================================== */
.cta-banner {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

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

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.banner-content {
    position: relative;
    z-index: 10;
    text-align: left;
    max-width: 600px;
    padding-left: 0px;
}

.banner-title {
    color: #262947;
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 2px;
}

.banner-subtitle {
    font-size: 18px;
    margin-bottom: var(--spacing-lg);
    opacity: 0.8;
}

.cta-banner .btn-primary {
    background: var(--primary-gradient);
    color: var(--text-white);
    box-shadow: 0 4px 20px rgba(0, 102, 204, 0.3);
}

.cta-banner .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.3);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--bg-primary);
}

.footer-main {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: var(--spacing-lg);
}

.footer-logo {
    height: 50px;
    margin-bottom: var(--spacing-sm);
}

.footer-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    min-height: 1.8em; /* 保持高度防止跳动 */
}

.typing-cursor {
    display: inline-block;
    color: #111;
    margin-left: 2px;
    font-weight: bold;
    animation: blink 0.7s infinite;
}

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

.footer-contact p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.footer-contact strong {
    color: var(--text-primary);
}

.footer-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
    display: inline-block;
}

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

.footer-links a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

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

.qrcode-group {
    display: flex;
    gap: var(--spacing-md);
}

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

.qrcode-box {
    position: relative;
    width: 106px;
    height: 106px;
    margin: 0 auto 12px;
    padding: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 1px solid var(--border-color); /* 恢复默认的边框颜色 */
    border-radius: var(--radius-sm);
    box-sizing: border-box;
    transition: border-color var(--transition-fast);
}

.qrcode-box:hover {
    border-color: transparent; /* hover时隐藏底色边框，让动画线条更纯粹 */
}

.qrcode-box img {
    width: 100px;
    height: 100px;
    border: none;
    border-radius: var(--radius-sm);
    display: block;
    position: relative;
    z-index: 1;
}

.qr-border {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
}

.qr-border path {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 2;
    stroke-dasharray: 412; /* 周长约 103 * 4 */
    stroke-dashoffset: 412;
    transition: stroke-dashoffset 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.qrcode-box:hover .qr-border path {
    stroke-dashoffset: 0;
}

.qrcode-item span {
    font-size: 13px;
    color: var(--text-light);
    font-weight: 500;
}

/* 友情链接 */
.footer-links-bar {
    padding: var(--spacing-md) 0;
    background: var(--bg-secondary);
    padding-bottom: var(--spacing-xs);
}

.friendly-links {
    text-align: center;
    font-size: 13px;
    color: var(--text-secondary);
}

.links-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.friendly-links a {
    color: var(--text-secondary);
    margin: 0 12px;
    transition: color var(--transition-fast);
}

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

/* 版权信息 */
.footer-bottom {
    padding: var(--spacing-md) 0;
    background: var(--bg-secondary);
    padding-top: 0px;
}

.copyright {
    text-align: center;
}

.copyright p {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.icp {
    font-size: 12px;
}

.icp a {
    color: var(--text-light);
    transition: color var(--transition-fast);
}

.icp a:hover {
    color: var(--primary-color);
}

.icp .divider {
    margin: 0 12px;
    color: var(--border-color);
}

/* ========================================
   悬浮操作按钮
   ======================================== */
.float-actions {
    position: fixed;
    bottom: 200px;
    right: 40px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 999;
}

.float-btn {
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.float-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.float-btn:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.float-btn svg {
    width: 24px;
    height: 24px;
}

/* ========================================
   动画关键帧
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ========================================
   响应式设计 - 平板
   ======================================== */
@media (max-width: 1024px) {
    .header-container {
        height: 60px;
    }
    
    .nav-list {
        gap: 4px;
    }
    
    .nav-item > a {
        padding: 10px 14px;
        font-size: 15px;
    }
    
    .carousel-content h2 {
        font-size: 42px;
    }
    
    .carousel-content p {
        font-size: 20px;
    }
    
    .capabilities-grid {
        gap: var(--spacing-md);
    }
    
    .capability-card {
        padding: var(--spacing-md);
    }
    
    .intro-wrapper {
        gap: var(--spacing-lg);
    }
    
    .partner-item {
        width: 180px;
        min-height: 80px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-md);
    }
    
    .footer-company {
        grid-column: span 3;
    }
    
    .footer-social {
        grid-column: span 3;
    }
}

/* ========================================
   响应式设计 - 移动端
   ======================================== */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 40px;
        --spacing-2xl: 60px;
    }
    
    /* 头部导航 */
    .header-container {
        height: 56px;
    }
    
    .logo-img {
        height: 32px;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .header-actions {
        display: none; /* 移动端隐藏按钮组，或放入菜单中 */
    }

    .header-phone {
        display: none; /* 移动端隐藏电话 */
    }
    
    .nav-menu {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-primary);
        padding: var(--spacing-md);
        transform: translateX(100%);
        transition: transform var(--transition-normal);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-list {
        flex-direction: column;
        gap: 0;
    }
    
    .nav-item {
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-item > a {
        padding: 16px 0;
        display: block;
    }
    
    .dropdown-menu {
        position: static;
        transform: none;
        box-shadow: none;
        background: var(--bg-secondary);
        border-radius: var(--radius-sm);
        margin: 8px 0;
        opacity: 1;
        visibility: visible;
        display: none;
    }
    
    .has-dropdown.open .dropdown-menu {
        display: block;
    }
    
    /* 轮播图 */
    .hero-carousel {
        height: 70vh;
        min-height: 500px;
    }
    
    /* 移动端显示图片，隐藏视频 */
    .carousel-slide[data-type="video"] .carousel-video {
        display: none;
    }
    
    .carousel-slide[data-type="video"] .carousel-img.fallback {
        display: block;
    }
    
    .carousel-content h2 {
        font-size: 28px;
    }
    
    .carousel-content p {
        font-size: 16px;
        margin-bottom: 24px;
    }
    
    .carousel-btn {
        display: none;
    }
    
    .carousel-progress {
        bottom: 20px;
    }
    
    .progress-item {
        width: 40px;
    }
    
    /* 核心业务能力 */
    .section-title {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 15px;
    }
    
    .capabilities-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .card-icon {
        width: 60px;
        height: 60px;
    }
    
    .card-title {
        font-size: 20px;
    }
    
    /* 公司简介 */
    .intro-wrapper {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .intro-content {
        padding-right: 0;
    }
    
    .intro-title {
        font-size: 28px;
    }
    
    .intro-stats {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
    
    .stat-item {
        flex: 0 0 calc(50% - var(--spacing-md) / 2);
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    /* 合作伙伴轮播 */
    .partners-carousel {
        padding: 10px 0;
        gap: var(--spacing-sm);
    }

    .partner-item {
        width: 150px; /* 移动端减小宽度 */
        min-height: 70px;
    }

    .partner-item img {
        max-height: 40px;
    }

    .to-left .partners-track,
    .to-right .partners-track {
        animation-duration: 25s; /* 减小路程后稍微调快速度 */
    }
    
    /* CTA Banner */
    .cta-banner {
        height: 300px;
    }
    
    .banner-title {
        font-size: 28px;
    }
    
    .banner-subtitle {
        font-size: 16px;
    }
    
    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-company,
    .footer-social {
        grid-column: span 1;
    }
    
    .qrcode-group {
        justify-content: flex-start;
    }
    
    .friendly-links {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        justify-content: center;
    }
    
    .friendly-links a {
        margin: 0 8px;
    }
    
    /* 回到顶部 */
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}

/* ========================================
   响应式设计 - 小屏手机
   ======================================== */
@media (max-width: 480px) {
    .hero-carousel {
        height: 60vh;
        min-height: 400px;
    }
    
    .carousel-content h2 {
        font-size: 24px;
    }
    
    .btn-primary {
        padding: 10px 24px;
        font-size: 14px;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-item {
        flex: 0 0 100%;
    }
    
    .intro-stats {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ========================================
   高对比度 / 无障碍优化
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 深色模式支持 (可选) */
@media (prefers-color-scheme: dark) {
    /* 如需支持深色模式，可在此添加样式 */
}

/* 使命愿景价值观移动端适配 */
@media (max-width: 768px) {
    .mission-vision-values {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .mvv-item {
        height: 200px;
        padding: var(--spacing-md);
    }
    
    .mvv-text {
        font-size: 18px;
    }
    
    .mvv-text-multi p {
        font-size: 16px;
    }
}