/* CSS Reset */
html,
body,
div,
span,
h1,
h2,
h3,
h4,
h5,
h6,
p,
a,
img,
ul,
ol,
li,
table,
tr,
td {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}

body {
    line-height: 1.5;
    font-family: "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
    color: #333;
}

ol,
ul {
    list-style: none;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

/* Responsive Base Styles */
html {
    box-sizing: border-box;
}

*,
*:before,
*:after {
    box-sizing: inherit;
}

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

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

header {
    text-align: center;
    margin-bottom: 20px;
}

header img {
    width: 100%;
    max-width: 1200px;
    height: auto;
}

/* 导航菜单样式 */
.nav-container {
    background: #f8f8f8;
    border-radius: 5px;
    padding: 10px;
    margin-bottom: 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.nav {
    display: flex;
    justify-content: center;
    position: relative;
}

.nav>li {
    position: relative;
    margin: 0 15px;
}

.nav>li>a {
    display: block;
    text-decoration: none;
    color: #333;
    padding: 10px 20px;
    font-weight: bold;
    transition: all 0.3s ease;
    border-radius: 3px;
}

.nav>li>a:hover,
.nav>li.current>a {
    background: #d37c18;
    color: white;
}

/* 下拉菜单样式 */
.nav ul {
    position: absolute;
    background: white;
    min-width: 200px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 100;
    left: 0;
    top: 100%;
}

.nav li:hover ul {
    opacity: 1;
    visibility: visible;
}

.nav ul li {
    margin: 0;
}

.nav ul a {
    display: block;
    padding: 10px 15px;
    color: #333;
    transition: all 0.2s ease;
}

.nav ul a:hover {
    background: #f0f0f0;
    color: #0066cc;
}

.content {
    padding: 20px 0;
}

.download-content {
    max-width: 50%;
    margin: 0 auto;
}

.section {
    margin-bottom: 30px;
    background: #f9f9f9;
    border-radius: 5px;
    padding: 20px;
}

.section h2 {
    color: #008080;
    margin-bottom: 15px;
    text-align: center;
    font-size: 1.5em;
    font-weight: bold;
    background-color: #e6f2ff;
    padding: 10px;
    border-radius: 5px;
}

.section p {
    margin-bottom: 15px;
    text-indent: 2em;
}

.section-img {
    text-align: center;
    margin: 20px 0;
}

.section-img img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
}

.feature-list {
    margin-left: 2em;
}

.feature-list li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 20px;
}

.feature-list li:before {
    content: "•";
    color: #0066cc;
    position: absolute;
    left: 0;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.client-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.client-item {
    text-align: center;
    padding: 10px;
    background: white;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.client-item img {
    max-height: 80px;
    margin: auto 0;
    width: 100%;
    height: auto;
    object-fit: contain;
}

.client-item p {
    margin-top: auto;
    margin-bottom: 0;
}

.features {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    padding: 20px 0;
    margin: 20px 0;
}

.feature-card {
    flex: 1;
    min-width: 200px;
    background: #f9f9f9;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.feature-card h4 {
    color: #008080;
    margin-bottom: 10px;
}

footer {
    background-color: #dfdeee;
    padding: 15px;
    text-align: center;
    margin-top: 20px;
}

.beian a {
    text-decoration: none;
    color: #000;
}

.beian a:hover {
    color: #0066cc;
}

.content p {
    margin-bottom: 15px;
    text-align: justify;
    line-height: 1.8;
    text-indent: 2em;
}

.float-right {
    float: right;
    margin-left: 20px;
    margin-bottom: 10px;
}

.float-left {
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
}

.download-section {
    margin-bottom: 30px;
}

.download-section h2 {
    color: #008080;
    text-align: center;
    margin-bottom: 15px;
}

.download-item {
    background: #f9f9f9;
    border-radius: 5px;
    padding: 15px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.download-item a {
    color: #0066cc;
    text-decoration: none;
    padding: 5px 10px;
    border-radius: 3px;
    transition: all 0.2s ease;
}

.download-item a:hover {
    background: #0066cc;
    color: white;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

/* ODTEKS Button Styles */
.odteks-button {
    display: inline-block;
    padding: 12px 30px;
    background-color: #6f5faa;
    color: white;
    font-weight: bold;
    text-decoration: none;
    border-radius: 5px;
    border: none;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.odteks-button:hover {
    background-color: #b86a14;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .nav {
        flex-direction: column;
        align-items: center;
    }

    .nav>li {
        margin: 5px 0;
        width: 100%;
        text-align: center;
    }

    .nav ul {
        position: static;
        width: 100%;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        display: none;
    }

    .nav li:hover ul {
        display: block;
    }

    .grid-container {
        grid-template-columns: 1fr;
    }

    .float-right,
    .float-left {
        float: none;
        display: block;
        margin: 10px auto;
    }

    .download-grid {
        grid-template-columns: 1fr;
    }
}