body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #121212;
    color: #ffffff;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(18, 18, 18, 0.8);
    padding: 10px 0;
}
.my-arrow{
    font-size: 4em;
}

nav {
    flex-grow: 1;
}

nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    color: #ffffff;
    text-decoration: none;
    font-size: 16px;
}

#languageToggle {
    position: fixed;
    top: 10px;
    right: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    color: #ffffff;
}

#languageToggle svg {
    margin-right: 5px;
}

.section,
.slide{
    background-size: cover;
    background-attachment: fixed;
}


/* fullPage.js 深色主题样式 */
#fp-nav ul li a span, 
.fp-slidesNav ul li a span {
    background: #ffffff;
}

.fp-tooltip {
    color: #ffffff;
}

/* Slides 通用样式 */
.fp-slidesNav {
    text-align: center;
}

.fp-slidesNav ul li a span {
    background: #ffffff;
}

.fp-controlArrow {
    border-color: transparent !important;
}

.fp-controlArrow.fp-prev {
    border-right-color: #ffffff !important;
    left: 15px;
}

.fp-controlArrow.fp-next {
    border-left-color: #ffffff !important;
    right: 15px;
}

/* 基础 slide 样式 */
.slide {
    position: relative;
    overflow: hidden;
}

.slide .section-content {
    position: relative;
    z-index: 2;
    padding: 0 50px;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

footer {
    background-color: rgba(18, 18, 18, 0.8);
    color: #ffffff;
    text-align: center;
    padding: 10px 0;
    position: fixed;
    bottom: 0;
    width: 100%;
}

#section_about {
    background-image: url('../images/bg1.webp');
}
#section_ai_driven {
    background-image: url('../images/bg2.webp') !important;
    background-size: cover !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
    position: relative;
}

/* 添加一个暗色遮罩 */
#section_ai_driven::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);  /* 黑色半透明遮罩 */
    /* 或者使用渐变 */
    /* background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)); */
    z-index: 1;
}

/* 确保内容在遮罩层之上 */
#section_ai_driven .slide {
    position: relative;
    z-index: 2;
}

#section_about_content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    padding: 20px;
    max-width: 800px;
}

#section_about_content h2 {
    font-size: 4em;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

#section_about_content p {
    font-size: 1.2em;
    line-height: 1.6;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

#section_offline {
    background-image: url('../images/yuelan1.webp') !important;
    background-size: cover !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
    position: relative;
}

/* 添加一个暗色遮罩 */
#section_offline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.2);  /* 黑色半透明遮罩 */
    z-index: 1;
}

/* 确保内容在遮罩层之上 */
#section_offline h2,
#section_offline p {
    position: relative;
    z-index: 2;
}

#section_offline .section-content {
    position: relative;
    z-index: 2;
    text-align: left;
    padding: 50px;
    max-width: 800px;
    margin: 0;
    margin-left: 100px;
}

#section_offline h2 {
    font-size: 4em;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

#section_offline p {
    font-size: 1.2em;
    line-height: 1.6;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    max-width: 650px;
}

#section_offline .highlights-list {
    list-style: none;
    padding: 0;
    margin-top: 30px;
    text-align: left;
}

#section_offline .highlights-list li {
    font-size: 1.2em;
    line-height: 1.6;
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
    color: #ffffff;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

#section_offline .highlights-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #ffffff;
}