:root {
    --ink-blue: #2A3F54;       /* 玄青墨韵 */
    --rice-paper: #F5F5DC;    /* 宣纸暖白 */
    --vermillion: #9B1B30;     /* 朱砂印红 */
    --gold-silk: #D4AF37;      /* 金绢古黄 */
    --celadon: #00896C;        /* 天青瓷韵 */
    --classic-purple: #6C4675; /* 古籍绛紫 */
}

/* 基础样式 */
body {
    background: var(--rice-paper);
    color: #4A4A4A;
    font-family: '宋体', 'SimSun', serif;
}

/* 网站Logo */
.logo {
    font-family: '书法字体', cursive;
    font-size: 2.5rem;
    color: var(--ink-blue);
    border-bottom: 3px solid var(--gold-silk);
    display: inline-block;
    padding: 0 1rem;
}

/* 导航栏 */
nav {
    background: var(--ink-blue);
    padding: 1rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    max-width: 1200px;
    margin: 0 auto;
}

nav a {
    color: var(--rice-paper);
    text-decoration: none;
    padding: 1rem 2rem;
    transition: 0.3s;
    border-bottom: 2px solid transparent;
}

nav a:hover {
    border-bottom-color: var(--gold-silk);
}

/* 内容区块 */
section {
    padding: 4rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}
p {padding 10px 0；
    margin: 10px auto;
  } 

h2 {
    color: var(--ink-blue);
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
    position: relative;
    padding-bottom: 1rem;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 2px;
    background: var(--gold-silk);
}

/* 公司简介 */
#about {
    background: url('paper-texture.jpg') var(--rice-paper);
    border: 1px solid var(--celadon);
    padding: 2rem;
    line-height: 1.8;
}

/* 业务范围 */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-left: 4px solid var(--vermillion);
    box-shadow: 0 3px 6px rgba(0,0,0,0.1);
}

/* 成功案例 */
.case-gallery {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

.case-item {
    position: relative;
    overflow: hidden;
    border: 2px solid var(--celadon);
}

.case-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: 0.3s;
}

/* 专家团队 */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2rem;
}

.expert-card {
    text-align: center;
    padding: 1rem;
    border: 1px solid var(--gold-silk);
}

.expert-photo {
    width: 180px;
    height: 90px;
    border-radius: 50%;
    border: 3px solid var(--ink-blue);
    margin: 0 auto 1rem;
}

/* 联系方式 */
#contact {
    background: var(--ink-blue);
    color: var(--rice-paper);
}

.contact-wrapper {
    gap: 1rem;
}

.btn {
    background: var(--vermillion);
    color: white;
    padding: 1rem 2rem;
    border: none;
    cursor: pointer;
    transition: 0.3s;
}

.btn:hover {
    background: var(--gold-silk);
}

footer {
    background: var(--classic-purple);
    color: var(--rice-paper);
    text-align: center;
    padding: 2rem;
}

/* 新增CSS样式 */
.app-intro {
    background: var(--rice-paper);
    padding: 4rem 1rem;
}

.app-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.app-logo {
    width: 150px;
    margin-bottom: 2rem;
}

.download-badges img {
    height: 45px;
    margin: 1rem;
}

.core-features {
    background: var(--ink-blue);
    color: white;
    padding: 1em 1rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    padding: 2rem;
    border-left: 4px solid;
}

.service-flow {
    padding: 4rem 1rem;
    text-align: center;
}

.flow-steps {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 3rem;
}

.step {
    background: var(--celadon);
    color: white;
    padding: 1rem;
    border-radius: 50%;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.legal-docs {
    background: var(--rice-paper);
    padding: 4rem 1rem;
}

.doc-card {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    align-items: center;
}

.doc-download {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--vermillion);
    color: white;
    margin-top: 1rem;
}

 /* 基础图片样式 */
.image-container {
    margin: 20px;
    padding: 10px;
    border: 2px solid #ddd;
    border-radius: 8px;
    background-color: #f9f9f9;
}

/* 响应式图片样式 */
.responsive-image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* 图片标题样式 */
.image-caption {
    text-align: center;
    font-style: italic;
    color: #666;
    margin-top: 8px;
}

@media (max-width: 768px) {
    .app-hero {
        grid-template-columns: 1fr;
    }
    .doc-card {
        grid-template-columns: 1fr;
    }
}