:root {
    /* Logo颜色方案 */
    --primary-color: #00a99d; /* 青绿色 */
    --secondary-color: #e89e5b; /* 橙棕色 */
    
    /* 辅助颜色 */
    --dark-primary: #007a70; /* 深青绿色 */
    --light-primary: #e6f7f6; /* 浅青绿色 */
    --dark-secondary: #c97c3d; /* 深橙棕色 */
    --light-secondary: #faf0e6; /* 浅橙棕色 */
    
    /* 基础颜色 */
    --text-color: #333333;
    --light-text: #6c757d;
    --heading-color: #1f3641;
    --link-color: var(--primary-color);
    --link-hover: var(--secondary-color);
    --border-color: #e9ecef;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --accent-color: var(--primary-color);
    
    /* 阴影 */
    --card-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    --block-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    --button-shadow: 0 5px 15px rgba(0, 169, 157, 0.2);
    --hover-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Noto Sans SC', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: #fff;
}

/* 统一的页面内容标题样式 */
.section-title {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 25px;
    position: relative;
    display: inline-block;
    padding-bottom: 15px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-title::after {
    content: '';
    position: absolute;
    width: 70px;
    height: 4px;
    background-color: var(--secondary-color);
    bottom: 0;
    left: 0;
}

.section-title.text-center {
    display: block;
    text-align: center;
}

.section-title.text-center::after {
    left: 50%;
    transform: translateX(-50%);
}

.section-description {
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-color);
    margin-bottom: 40px;
    max-width: 800px;
}

.section-description.text-center {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

/* 子部分标题样式 */
.sub-section-title {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 12px;
    font-weight: 600;
}

.sub-section-title::after {
    content: '';
    position: absolute;
    width: 50px;
    height: 3px;
    background-color: var(--secondary-color);
    bottom: 0;
    left: 0;
}

.sub-section-title.text-center {
    text-align: center;
}

.sub-section-title.text-center::after {
    left: 50%;
    transform: translateX(-50%);
}

.section-unified-title {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
    padding-bottom: 15px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-unified-title::after {
    content: '';
    position: absolute;
    width: 70px;
    height: 4px;
    background-color: var(--secondary-color);
    bottom: 0;
    left: 0;
}

.section-unified-title.text-center {
    text-align: center;
}

.section-unified-title.text-center::after {
    left: 50%;
    transform: translateX(-50%);
}

.section-unified-description {
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-color);
    margin-bottom: 40px;
    max-width: 800px;
}

.section-unified-description.text-center {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

a {
    text-decoration: none;
    color: var(--link-color);
    transition: all 0.3s ease;
}

a:hover {
    color: var(--link-hover);
}

p {
    margin-bottom: 1rem;
}

ul, ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 4px;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 15px;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
    box-shadow: var(--button-shadow);
}

.btn-primary:hover {
    background-color: var(--dark-primary);
    color: #fff;
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: #fff;
    box-shadow: 0 5px 15px rgba(232, 158, 91, 0.2);
}

.btn-secondary:hover {
    background-color: var(--dark-secondary);
    color: #fff;
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: #fff;
    transform: translateY(-5px);
    box-shadow: var(--button-shadow);
}

.btn-light {
    background-color: #fff;
    color: var(--primary-color);
}

.btn-light:hover {
    background-color: var(--light-color);
    color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

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

.text-right {
    text-align: right;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

.section-title {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
    padding-bottom: 15px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-title::after {
    content: '';
    position: absolute;
    width: 70px;
    height: 4px;
    background-color: var(--secondary-color);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.section-title.text-left::after {
    left: 0;
    transform: none;
}

.section-title h2 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-title .underline {
    width: 70px;
    height: 4px;
    background-color: var(--secondary-color);
    margin: 0 auto 20px;
}

.section-title .section-desc {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto;
    color: var(--light-text);
}

/* 渐变文本效果 */
.gradient-text {
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

/* 页面标题样式 */
.page-header {
    position: relative;
    padding: 150px 0 80px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    text-align: center;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 169, 157, 0.9), rgba(232, 158, 91, 0.8));
    z-index: 1;
}

.page-header .container {
    position: relative;
    z-index: 3;
}

.page-header h1 {
    color: #fff;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.page-header p {
    color: rgba(255, 255, 255, 0.95);
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto 20px;
    font-weight: 300;
}

/* 调整轮播区块高度 */
.hero-slider {
    height: auto;
    min-height: 600px;
}

/* 确保在移动端轮播文字正常显示 */
@media (max-width: 768px) {
    .hero-slider .carousel-caption {
        display: block !important;
        background: rgba(0, 0, 0, 0.5);
        padding: 15px;
        border-radius: 5px;
    }
    
    .hero-slider {
        min-height: 450px;
    }
    
    .hero-slider .carousel-caption h2 {
        font-size: 20px;
    }
    
    .hero-slider .carousel-caption p {
        font-size: 14px;
    }
}

/* 标题样式 */
h1, h2, h3, h4, h5, h6 {
    color: var(--heading-color);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1rem;
}

/* 二级标题样式 */
.sub-title {
    display: block;
    font-size: 18px;
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* 页面内容区域标题 */
.content-title {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 12px;
    font-weight: 700;
}

.content-title::after {
    content: '';
    position: absolute;
    width: 50px;
    height: 3px;
    background-color: var(--secondary-color);
    bottom: 0;
    left: 0;
}

.content-title.text-center::after {
    left: 50%;
    transform: translateX(-50%);
}

/* 特定页面标题样式 - 如流程标题、案例标题等 */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h3 {
    font-size: 32px;
    margin-bottom: 15px;
    color: var(--primary-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h3::after {
    content: '';
    position: absolute;
    width: 70px;
    height: 4px;
    background-color: var(--secondary-color);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.section-header p {
    max-width: 700px;
    margin: 0 auto;
    color: var(--light-text);
}

/* 导航栏 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 0;
    background-color: #fff;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

header.shrink {
    padding: 12px 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

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

.logo-container {
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
}

.logo-container img {
    height: 50px;
    margin-right: 15px;
    transition: all 0.3s ease;
}

header.shrink .logo-container img {
    height: 45px;
}

.company-name {
    display: flex;
    flex-direction: column;
}

.company-name h1 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
    line-height: 1.2;
}

.company-name p {
    font-size: 12px;
    color: var(--light-text);
    margin: 0;
}

header.shrink .company-name h1 {
    font-size: 16px;
}

header.shrink .company-name p {
    font-size: 11px;
}

nav {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-end; /* 将导航内容靠右对齐 */
}

nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    margin-right: 15px; /* 与语言切换按钮的间距 */
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
    padding: 5px 0;
    font-size: 16px;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

nav ul li a:hover::after,
nav ul li a.active::after {
    width: 100%;
}

nav ul li a.active {
    color: var(--primary-color);
    font-weight: 600;
}

.menu-toggle {
    display: none;
    font-size: 24px;
    color: var(--primary-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.menu-toggle:hover {
    color: var(--secondary-color);
}

/* 页脚 */
footer {
    background-color: var(--dark-color);
    color: #fff;
    padding: 70px 0 20px;
    position: relative;
    overflow: hidden;
}

.footer-shape {
    position: absolute;
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: 50%;
    z-index: 1;
}

.footer-shape-1 {
    width: 300px;
    height: 300px;
    top: -150px;
    right: -100px;
}

.footer-shape-2 {
    width: 200px;
    height: 200px;
    bottom: -100px;
    left: 10%;
}

/* 调整页脚布局，防止地址文本换行 */
.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 50px;
    position: relative;
    z-index: 2;
}

.footer-logo {
    flex: 1.8;
    min-width: 280px;
    max-width: 40%;
}

.footer-links {
    flex: 0.8;
    min-width: 150px;
}

.footer-contact {
    flex: 1.4;
    min-width: 250px;
}

.footer-contact p {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

@media screen and (max-width: 992px) {
    .footer-logo,
    .footer-links,
    .footer-contact {
        flex: 1 1 auto;
        min-width: 280px;
        max-width: 100%;
    }
    
    .footer-contact p {
        white-space: normal;
    }
}

@media screen and (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-logo,
    .footer-links,
    .footer-contact {
        width: 100%;
        max-width: 100%;
    }
}

.footer-logo a {
    display: inline-block;
    margin-bottom: 20px;
}

.footer-logo img {
    height: 60px;
}

.footer-logo p {
    color: var(--secondary-color);
    font-weight: 500;
    margin-bottom: 15px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
    font-size: 14px;
    max-width: 400px;
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-radius: 6px;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.footer-social a:hover {
    background-color: var(--secondary-color);
    transform: translateY(-5px);
}

.footer-links,
.footer-contact {
    flex: 1;
    min-width: 200px;
}

.footer-links h3,
.footer-contact h3 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 25px;
    font-weight: 600;
    position: relative;
    padding-bottom: 12px;
}

.footer-links h3::after,
.footer-contact h3::after {
    content: '';
    position: absolute;
    width: 40px;
    height: 3px;
    background-color: var(--secondary-color);
    bottom: 0;
    left: 0;
}

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

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

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
    padding-left: 15px;
}

.footer-links ul li a::before {
    content: '';
    position: absolute;
    width: 6px;
    height: 2px;
    background-color: var(--secondary-color);
    left: 0;
    top: 50%;
    transition: all 0.3s ease;
}

.footer-links ul li a:hover {
    color: #fff;
    transform: translateX(5px);
}

.footer-links ul li a:hover::before {
    width: 10px;
}

.footer-contact p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.footer-contact p i {
    margin-right: 10px;
    color: var(--secondary-color);
    font-size: 16px;
    margin-top: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 2;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    margin: 0;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
}

.footer-bottom a:hover {
    color: var(--secondary-color);
}

.separator {
    display: inline-block;
    margin: 0 5px;
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 45px;
    height: 45px;
    background-color: var(--primary-color);
    color: #fff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    z-index: 99;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    opacity: 0;
    visibility: hidden;
    box-shadow: 0 3px 10px rgba(0, 169, 157, 0.3);
}

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

.back-to-top:hover {
    background-color: var(--secondary-color);
    color: #fff;
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(232, 158, 91, 0.3);
}

/* 通用页面标题样式 - 添加解决标题丢失问题 */
.page-header {
    position: relative;
    padding: 120px 0 80px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    text-align: center;
    color: #fff;
    overflow: hidden;
    z-index: 1;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0,0,0,0.7), rgba(0,0,0,0.5));
    z-index: -1;
}

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

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #fff;
    animation: fadeInUp 0.8s ease forwards;
}

.page-header .page-description {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.2s;
}

/* 页面标题中的动态形状元素 */
.header-shape {
    position: absolute;
    z-index: 0;
    opacity: 0.15;
}

.shape-1 {
    top: -50px;
    right: -50px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: var(--secondary-color);
    animation: float 8s infinite ease-in-out;
}

.shape-2 {
    bottom: -80px;
    left: -80px;
    width: 200px;
    height: 200px;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    background: var(--primary-color);
    animation: float 10s infinite ease-in-out reverse;
}

.shape-3 {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    height: 500px;
    border-radius: 30% 70% 50% 50% / 50%;
    border: 2px solid rgba(255, 255, 255, 0.1);
    animation: rotate 20s infinite linear;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes rotate {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* 响应式样式 */
@media screen and (max-width: 992px) {
    /* 导航菜单样式调整 */
    .menu-toggle {
        display: block;
    }
    
    nav {
        position: fixed;
        top: 0;
        right: -300px;
        width: 300px;
        height: 100vh;
        background-color: #fff;
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
        padding: 80px 20px 30px;
        transition: right 0.4s cubic-bezier(0.65, 0.05, 0.36, 1);
        z-index: 999;
        overflow-y: auto;
    }
    
    nav.active {
        right: 0;
    }
    
    nav ul {
        flex-direction: column;
    }
    
    nav ul li {
        margin: 0;
        margin-bottom: 15px;
    }
    
    nav ul li a {
        display: block;
        padding: 10px 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    nav ul li a::after {
        display: none;
    }
    
    .page-header {
        padding: 100px 0 60px;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }

    .section-title, 
    .section-header h3 {
        font-size: 28px;
    }
    
    .content-title {
        font-size: 24px;
    }
}

@media screen and (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-logo,
    .footer-links,
    .footer-contact {
        width: 100%;
        max-width: 100%;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    .page-header h1 {
        font-size: 36px;
    }
    
    .section-title, 
    .section-header h3 {
        font-size: 24px;
    }
    
    .content-title {
        font-size: 22px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
}

@media screen and (max-width: 576px) {
    /* Logo和公司名称调整 */
    .logo-container img {
        height: 40px;
        margin-right: 10px;
    }
    
    .company-name h1 {
        font-size: 14px;
    }
    
    .company-name p {
        font-size: 10px;
    }
    
    .section-title h2 {
        font-size: 24px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .page-header {
        padding: 80px 0 50px;
    }
    
    .page-header h1 {
        font-size: 1.8rem;
    }
    
    .page-header .page-description {
        font-size: 1rem;
    }
}

/* 动画样式 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

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

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animated {
    animation-duration: 1s;
    animation-fill-mode: both;
}