/* --- 全新“深蓝科技”主题 --- */
:root {
    /* 核心色板 */
    --primary-color: #00c6ff; /* 充满活力的青色，用于高亮和交互 */
    --primary-hover: #00a4d3;
    --background-color: #0a192f; /* 深邃的星空蓝背景 */
    --surface-color: #112240;  /* 卡片和面板的颜色，比背景稍亮 */
    --text-color: #ccd6f6;      /* 主要文字颜色，柔和的灰白色 */
    --secondary-text-color: #8892b0; /* 次要文字颜色，更暗的灰蓝色 */
    --border-color: #233554;    /* 边框和分隔线的颜色 */

    /* 其他设计变量 */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --card-shadow: 0 10px 30px -15px rgba(0, 0, 0, 0.7); /* 更适合深色模式的阴影 */
    --transition-speed: 0.3s;
}

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

html { scroll-behavior: smooth; }
body {
    font-family: var(--font-family);
    line-height: 1.7;
    margin: 0;
    padding: 0;
    color: var(--text-color);
    background-color: var(--background-color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* --- 交互式页头 (磨砂玻璃效果) --- */
header {
    background-color: rgba(17, 34, 64, 0.85); /* 半透明的面板色 */
    backdrop-filter: blur(10px);
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all var(--transition-speed) ease;
}
.header-content {
    max-width: 1200px; margin: 0 auto;
    display: flex; justify-content: space-between; align-items: center;
}
.header-logo { text-decoration: none; }
header h1 { margin: 0; font-size: 1.8rem; font-weight: 700; color: var(--primary-color); }
nav#main-navigation a {
    margin: 0 1rem; text-decoration: none; color: var(--secondary-text-color);
    font-weight: 500; font-size: 1rem; padding: 0.5rem 0.25rem;
    position: relative; transition: color var(--transition-speed) ease;
}
nav#main-navigation a:after {
    content: ''; position: absolute; width: 100%; transform: scaleX(0); height: 2px;
    bottom: -2px; left: 0; background-color: var(--primary-color);
    transform-origin: bottom right; transition: transform 0.25s ease-out;
}
nav#main-navigation a:hover { color: var(--primary-color); }
nav#main-navigation a:hover:after,
nav#main-navigation a.active:after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

/* --- 主内容与卡片 (悬浮面板效果) --- */
main { flex-grow: 1; width: 100%; }
.page-container { max-width: 1100px; margin: 2rem auto; padding: 0 2rem; }
.content-card {
    background-color: var(--surface-color);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    padding: 3rem 4rem;
    border: 1px solid var(--border-color);
}
.content-card h1, .content-card h2 {
    margin-top: 0; font-size: 2.5rem; font-weight: 700;
    line-height: 1.2; color: var(--text-color);
}

/* --- 英雄区 (渐变背景) --- */
.hero-section {
    padding: 8rem 2rem;
    text-align: center;
    background: radial-gradient(ellipse at top, #1b3a6f, #0a192f 70%); /* 中心发散的微光效果 */
}
.hero-section h1 {
    font-size: 3.8rem; font-weight: 800; margin: 0 0 1.5rem; line-height: 1.1;
    color: #fff;
}
.hero-section p.subtitle { font-size: 1.25rem; color: var(--secondary-text-color); max-width: 700px; margin: 0 auto 2.5rem; }
/* 动态渐变按钮 */
.cta-button {
    display: inline-block; color: white;
    padding: 1rem 2.5rem; border-radius: 50px;
    text-decoration: none; font-weight: 500; font-size: 1.1rem;
    transition: all var(--transition-speed) ease;
    border: none;
    cursor: pointer;
    background-image: linear-gradient(90deg, var(--primary-color) 0%, #0072ff 100%);
    box-shadow: 0 4px 15px rgba(0, 198, 255, 0.3);
}
.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 20px rgba(0, 198, 255, 0.2);
}
.cta-button:disabled {
    background-image: none;
    background-color: var(--secondary-text-color);
    cursor: not-allowed; transform: none; box-shadow: none;
}


/* --- 业务画廊/轮播 --- */
.business-carousel-section { padding: 4rem 0; max-width: 1200px; margin: 0 auto; }
.carousel-wrapper { position: relative; }
.carousel-track {
    display: flex; gap: 1.5rem; padding: 1rem 0;
    overflow-x: auto; scroll-behavior: smooth;
    -ms-overflow-style: none; scrollbar-width: none;
}
.carousel-track::-webkit-scrollbar { display: none; }
.business-card {
    flex: 0 0 260px; height: 260px;
    border-radius: 12px;
    overflow: hidden; position: relative;
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    display: block; text-decoration: none; cursor: pointer;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
}
.business-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px -15px rgba(0,0,0,0.8);
    border-color: var(--primary-color);
}
.business-card .card-bg-image { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; filter: grayscale(50%) brightness(0.8); }
.business-card:hover .card-bg-image { transform: scale(1.05); filter: grayscale(0%) brightness(1); }
.business-card .card-overlay {
    position: absolute; bottom: 0; left: 0; right: 0;
    padding: 2rem 1.25rem 1.25rem;
    color: white;
    background: linear-gradient(to top, rgba(17, 34, 64, 0.9) 0%, rgba(17, 34, 64, 0) 100%);
}
.business-card .card-title { font-size: 1.3rem; font-weight: 600; margin: 0; color: #fff; }
.carousel-nav {
    position: absolute; top: 50%; transform: translateY(-50%); z-index: 20;
    background-color: var(--surface-color); border: 1px solid var(--border-color);
    color: var(--secondary-text-color);
    border-radius: 50%; width: 44px; height: 44px; cursor: pointer;
    display: flex; justify-content: center; align-items: center;
    font-size: 1.5rem; box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: all 0.2s ease;
}
.carousel-nav:hover { background-color: #172a45; transform: translateY(-50%) scale(1.1); color: var(--primary-color); }
.carousel-nav.prev { left: -22px; }
.carousel-nav.next { right: -22px; }
.carousel-nav.hidden { display: none; }


/* --- 业务中心页 Tab --- */
.business-tabs-nav { margin-bottom: 2.5rem; margin-top: 2.5rem; }
.business-tabs-track { display: flex; gap: 1.5rem; overflow-x: auto; scroll-behavior: smooth; padding-bottom: 1rem; -ms-overflow-style: none; scrollbar-width: none; }
.business-tabs-track::-webkit-scrollbar { display: none; }

.business-tab-item {
    flex: 0 0 180px; height: 120px; cursor: pointer;
    border-radius: 8px; background: var(--surface-color);
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    overflow: hidden; transition: all var(--transition-speed) ease;
    border: 2px solid var(--border-color); position: relative; display: block;
}
.business-tab-item:hover {
    box-shadow: 0 8px 16px rgba(0,0,0,0.4);
    transform: translateY(-4px);
    border-color: var(--primary-color);
}
.business-tab-item.active {
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(0, 198, 255, 0.3);
}
.business-tab-image { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform var(--transition-speed) ease; }
.business-tab-item:hover .business-tab-image { transform: scale(1.05); }
.business-tab-item::after {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to top, rgba(17, 34, 64, 0.95) 20%, rgba(17, 34, 64, 0) 100%);
    z-index: 1;
}
.business-tab-content { position: absolute; bottom: 0; left: 0; right: 0; padding: 0.75rem; color: white; z-index: 2; text-align: left; }
.business-tab-title { font-size: 1.5rem; font-weight: 700; color: var(--text-color); margin: 0 0 0.25rem; line-height: 1.3; transition: color 0.2s ease; }
.business-tab-item:hover .business-tab-title, .business-tab-item.active .business-tab-title { color: #fff; }
.business-tab-description { display: none; }
.business-carousel-section.is-centered .carousel-track, .business-tabs-nav.is-centered .business-tabs-track { justify-content: center; }

/* --- 业务详情内容 --- */
.business-content { margin-top: 3rem; border-top: 1px solid var(--border-color); padding-top: 3rem; }
.business-content-pane { display: none; animation: fadeIn 0.5s; }
.business-content-pane.active { display: block; }
.business-content-pane h3 { font-size: 1.8rem; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* --- 首页其他部分 --- */
.home-section { padding: 4rem 0; border-top: 1px solid var(--border-color); }
.home-section:first-child { border-top: none; }
.home-section h3 { font-size: 2rem; margin-bottom: 2rem; text-align: center; color: var(--text-color); }
.read-more-btn { display: inline-block; margin-top: 1.5rem; color: var(--primary-color); text-decoration: none; font-weight: 600; }
.read-more-btn:hover { color: #33d7ff; text-decoration: underline; }

/* --- 文章页与列表页 --- */
.article-info { color: var(--secondary-text-color); font-size: 0.9em; margin: -1.5rem 0 2rem; }
#article-body img, #page-body img { max-width: 100%; height: auto; border-radius: 8px; margin: 2rem 0; }
ul#article-list { list-style: none; margin: 0; padding: 0; }
ul#article-list li { border-bottom: 1px solid var(--border-color); transition: background-color var(--transition-speed) ease; border-radius: 8px; }
ul#article-list li:last-child { border-bottom: none; }
ul#article-list li:hover { background-color: var(--surface-color); }
ul#article-list li > div { padding: 1.5rem 1rem; display: flex; justify-content: space-between; align-items: center; }
ul#article-list a { text-decoration: none; color: var(--text-color); font-size: 1.2rem; font-weight: 600; transition: color var(--transition-speed) ease; }
ul#article-list a:hover { color: var(--primary-color); }
ul#article-list .article-date { font-size: 0.9em; color: var(--secondary-text-color); white-space: nowrap; margin-left: 2rem; }

/* --- 【新增】文章页返回链接 --- */
.back-link {
    display: none; /* 默认隐藏，由 JS 控制显示 */
    margin-bottom: 2rem;
    font-weight: 600;
    color: var(--secondary-text-color);
    text-decoration: none;
    transition: color var(--transition-speed) ease;
}
.back-link:hover {
    color: var(--primary-color);
}

/* --- 【新增】文章列表页分类Tabs --- */
.category-tabs-nav {
    margin-top: 2rem;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}
.category-tab {
    background: transparent;
    border: 1px solid transparent;
    color: var(--secondary-text-color);
    padding: 0.5rem 1rem;
    margin-right: 0.5rem;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.2s ease-in-out;
}
.category-tab:hover {
    background-color: var(--surface-color);
    color: var(--text-color);
}
.category-tab.active {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

/* --- 【新增】业务页面的相关文章列表 --- */
.related-articles {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}
.related-articles h4 {
    font-size: 1.5rem;
    color: var(--secondary-text-color);
    margin-bottom: 1.5rem;
}

/* --- 页脚 --- */
footer { background: #061223; color: var(--secondary-text-color); padding: 4rem 2rem; }
.footer-content { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; text-align: left; }
.footer-column h4 { color: white; margin: 0 0 1rem; }
.footer-column p, .footer-column ul { margin: 0; padding: 0; list-style: none; }
.footer-column a { color: var(--secondary-text-color); text-decoration: none; transition: color var(--transition-speed) ease; }
.footer-column a:hover { color: white; }
.footer-bottom { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid #10213b; text-align: center; font-size: 0.9em; }

/* === 联系我们表单样式 === */
.contact-form-container {
    margin-top: 3rem; padding: 2.5rem;
    background-color: var(--surface-color);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    max-width: 700px; margin-left: auto; margin-right: auto;
}
.contact-form-container h3 {
    text-align: center; font-size: 1.8rem;
    margin-top: 0; margin-bottom: 2rem; color: var(--text-color);
}
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; color: var(--secondary-text-color); }
.form-group input, .form-group textarea {
    width: 100%; padding: 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px; font-size: 1rem; font-family: inherit;
    transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    background-color: #0d1f3d;
    color: var(--text-color);
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 198, 255, 0.25);
}
.form-status { min-height: 1.5em; text-align: center; font-weight: 500; }
@media (max-width: 768px) {
    .content-card { padding: 2rem; }
    .contact-form-container { padding: 1.5rem; }
}

/* =========================================
   CKEditor 5 内容渲染样式补丁 (修复版 v2)
   ========================================= */

/* 1. 重置 figure 标签的浏览器默认边距 */
#article-body figure.image,
#page-body figure.image {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 2. 图片容器基础样式 (默认居中) */
#article-body .image,
#page-body .image {
    display: block;        /* 【核心修改】不要用 table */
    margin: 1.5rem auto;   /* 上下留白，左右居中 */
    text-align: center;
    max-width: 100%;
    clear: both;           /* 默认居中图独占一行 */
    position: relative;
    overflow: hidden;      /* 防止内容溢出 */
}

/* 图片自适应 */
#article-body .image img,
#page-body .image img {
    display: block;
    margin: 0 auto;
    max-width: 100%;
    height: auto !important; /* 强制覆盖内联高度 */
    border-radius: 8px;
}

/* 3. 侧边风格 (image-style-side) - 你的案例就是这个 */
/* 这里的优先级必须高于上面的 .image */
#article-body .image.image-style-side,
#page-body .image.image-style-side {
    float: right;          /* 【关键】右浮动 */
    clear: none;           /* 【关键】允许周围有元素，不要独占一行 */
    margin-top: 0.5rem;
    margin-left: 2rem;     /* 左侧留白，防止文字贴图 */
    margin-bottom: 1rem;
    margin-right: 0;
    max-width: 40%;        /* 限制图片宽度，给文字留空间 */
    width: auto;           /* 宽度自适应 */
    overflow: visible;
}

/* 4. 左对齐 (image-style-align-left) */
#article-body .image.image-style-align-left,
#page-body .image.image-style-align-left {
    float: left;
    clear: none;
    margin-top: 0.5rem;
    margin-right: 2rem;
    margin-bottom: 1rem;
    margin-left: 0;
    max-width: 50%;
    width: auto;
}

/* 5. 右对齐 (image-style-align-right) */
#article-body .image.image-style-align-right,
#page-body .image.image-style-align-right {
    float: right;
    clear: none;
    margin-top: 0.5rem;
    margin-left: 2rem;
    margin-bottom: 1rem;
    margin-right: 0;
    max-width: 50%;
    width: auto;
}

/* 6. 图片说明文字 (Figcaption) */
#article-body .image > figcaption,
#page-body .image > figcaption {
    display: block;
    margin-top: 0.5rem;
    color: var(--secondary-text-color);
    font-size: 0.9em;
    text-align: center;
    background: rgba(0,0,0,0.2);
    padding: 4px 8px;
    border-radius: 4px;
}

/* 7. 移动端适配：强制取消浮动 */
@media (max-width: 768px) {
    #article-body .image.image-style-side,
    #article-body .image.image-style-align-left,
    #article-body .image.image-style-align-right,
    #page-body .image.image-style-side,
    #page-body .image.image-style-align-left,
    #page-body .image.image-style-align-right {
        float: none !important;
        margin: 1.5rem auto !important;
        max-width: 100% !important;
        display: block;
        clear: both;
    }
}

/* 8. 列表缩进修复 */
#article-body ul, #article-body ol {
    padding-left: 2em;
    margin-bottom: 1.5em;
    overflow: hidden; /* 防止列表项穿过浮动图片 */
}