* {
  margin: 0;
  padding: 0;
}

a {
  text-decoration: none;
}

img {
  vertical-align: top;
}

ul,
li,
ol {
  list-style: none;
}

.clear {
  clear: both;
}

i,
em {
  font-weight: normal;
}

b,
strong {
  font-style: normal;
}

.fl {
  float: left;
}

.fr {
  float: right;
}

.clearfix::after {
  content: '';
  display: block;
  clear: both;
}
/* 最外面的div.wrapper的样式 */
.wrapper {
  max-width: 1920px;
  min-width: 1200px;
  margin: 0 auto;
}
/* ==================== 全局变量 ==================== */
:root {
    /* 品牌主色 */
    --color-primary: #0077C8;       /* 主蓝色 */
    --color-primary-light: #00A3E0; /* 浅蓝色，用于渐变 */
    --color-primary-dark: #005B99;  /* 深蓝色 */
    --color-navy: #051633;          /* 页脚背景深色 */
    --color-navy-light: #0B2142;    /* 页脚次要深色 */
    --color-text: #1A1A1A;          /* 正文黑色 */
    --color-text-muted: #666666;    /* 次要文字灰色 */
    --color-border: #E5E5E5;        /* 边框浅灰 */
    --color-bg: #FFFFFF;            /* 页面背景白 */
    --color-bg-light: #F5F7FA;      /* 浅灰背景，用于新闻区 */
    
    /* 字体 */
    --font-serif: 'Noto Serif SC', 'SimSun', 'STSong', serif; /* 标题衬线字体 */
    --font-sans: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', sans-serif; /* 正文字体 */
    
    /* 尺寸 */
    --container-width: 1200px;
    --header-height: 80px;
    --section-padding: 80px;
}

/* ==================== 重置与基础 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

html,
body {
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    /* 避免返回顶部按钮遮挡内容 */
    position: relative;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* ==================== 通用容器 ==================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ==================== 滚动渐入动画 ==================== */
/* 初始状态：透明 + 下移 30px，等待进入视口后由 JS 添加 .visible */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

/* 进入视口后的显示状态 */
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 交错延迟：配合 JS 按顺序显示，产生逐个浮现的效果 */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ==================== 按钮组件 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 0;
    transition: all 0.25s ease;
    cursor: pointer;
    border: 1px solid transparent;
    min-width: 100px;
}

/* 主按钮：蓝色背景白色文字 */
.btn-primary {
    background-color: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}

/* 白色按钮：深色背景（如导航栏）上使用，白底蓝字 */
.btn-light {
    background-color: #fff;
    color: var(--color-primary);
    border-color: #fff;
}

.btn-light:hover {
    background-color: rgba(255, 255, 255, 0.85);
    border-color: rgba(255, 255, 255, 0.85);
    color: var(--color-primary-dark);
}

/* 描边按钮：hover 时背景从左向右填充（黑蓝渐变，最终成黑色，文字变白）
   使用 background-size 方案，不依赖伪元素 z-index，确保所有区域（含国际监管区域）都生效 */
.btn-outline,
.btn-outline-light {
    background-repeat: no-repeat;
    background-position: left center;
    background-size: 0% 100%;
    transition: background-size 0.3s ease, color 0.3s ease;
}

/* 查看服务：黑蓝渐变填充，最终成黑色 */
.btn-outline {
    background-image: linear-gradient(90deg, var(--color-primary) 0%, #000000 100%);
    color: var(--color-text);
    border-color: var(--color-text);
}

.btn-outline:hover {
    background-size: 100% 100%;
    color: #fff;
}

/* 浅色描边按钮：用于深色背景，同样黑蓝渐变 */
.btn-outline-light {
    background-image: linear-gradient(90deg, var(--color-primary) 0%, #000000 100%);
    color: #fff;
    border-color: #fff;
}

.btn-outline-light:hover {
    background-size: 100% 100%;
    color: #fff;
}

/* ==================== 顶部导航栏 ==================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    /* 头部底色：白色 */
    background-color: rgba(253,253,251);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

/* Logo 区域 */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* 页头 Logo 图片：透明底 */
.logo-img {
    height: 52px;
    width: auto;
    object-fit: contain;
    display: block;
}

.logo-icon {
    width: 42px;
    height: 42px;
    object-fit: contain;
}

.site-header .logo-icon {
    width: auto;
    height: 56px;
}

/* 顶部导航栏：图形 + 英文文字 */
.site-header .logo-text {
    display: flex;
}

/* 页脚 Logo：透明图形 + 文字组合 */
.footer-logo .logo-icon {
    width: auto;
    height: 44px;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
    margin-left: 5px;
}

.site-header .logo-text {
    font-size: 16px;
    
}

.logo-top {
    font-size: 22px;
    font-weight: 500;
    letter-spacing: 2px;
    font-family: 'Arial', 'Helvetica Neue', 'Helvetica', sans-serif;
    color: #888888;
}

.logo-bottom {
    font-size: 12px;
    font-weight: 300;
    letter-spacing: 4px;
    font-family: 'Arial', 'Helvetica Neue', 'Helvetica', sans-serif;
    color: #888888;
}

/* 页脚文字：深色背景下的灰色文字 */
.logo-text.light .logo-top,
.logo-text.light .logo-bottom {
    color: #aaaaaa;
}

/* 主导航 */
.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.main-nav a {
    font-size: 14px;
    color: var(--color-text);
    font-weight: 400;
    position: relative;
    padding: 28px 0;
    transition: color 0.25s ease;
}

.main-nav a:hover {
    color: var(--color-primary);
}

/* 导航项顶部蓝色下划线（小蓝条）
   默认通过 scaleX(0) 隐藏，鼠标悬停（hover）时显示，
   点击后（active）保持显示 */
.main-nav a::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--color-primary);
    transform: scaleX(0);              /* 默认横向缩放为 0，即隐藏 */
    transform-origin: center;
    transition: transform 0.3s ease;   /* 出现/消失时的过渡动画 */
}

/* 鼠标悬停时显示蓝条 */
.main-nav a:hover::after {
    transform: scaleX(1);
}

/* 点击激活后蓝条保持显示 */
.main-nav a.active::after {
    transform: scaleX(1);
}

.main-nav .arrow {
    font-size: 10px;
    margin-left: 4px;
    color: var(--color-text-muted);
    transition: transform 0.25s ease;
}

/* ==================== 导航下拉菜单 ==================== */
/* 下拉触发容器：相对定位，作为下拉菜单的参照 */
.nav-dropdown {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

/* 下拉菜单容器：默认隐藏，鼠标悬停显示 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding-top: 10px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    z-index: 1001;
}

/* 鼠标悬停或 JS 添加 open 类时显示下拉菜单 */
.nav-dropdown:hover .dropdown-menu,
.nav-dropdown.open .dropdown-menu {
    opacity: 1;
    visibility: visible;
}

/* 鼠标悬停时箭头旋转 */
.nav-dropdown:hover .arrow,
.nav-dropdown.open .arrow {
    transform: rotate(180deg);
}

/* 4 列大型下拉菜单内容区 */
.mega-menu {
    background-color: #fff;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
    border-radius: 4px;
    padding: 35px 0;
    min-width: 800px;
}

.mega-inner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

/* 单列标题 */
.mega-column h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--color-border);
}

/* 单列链接 */
.mega-column ul li {
    margin-bottom: 10px;
}

.mega-column ul a {
    font-size: 14px;
    color: var(--color-text-muted);
    padding: 0;
    display: block;
    transition: color 0.2s ease, padding-left 0.2s ease;
}

.mega-column ul a::after {
    display: none; /* 下拉链接不需要顶部蓝条 */
}

.mega-column ul a:hover {
    color: var(--color-primary);
    padding-left: 6px;
}

/* 单列下拉菜单（如：公司） */
.simple-menu {
    background-color: #fff;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
    border-radius: 4px;
    padding: 12px 0;
    min-width: 180px;
}

.simple-menu ul li {
    margin: 0;
}

.simple-menu ul a {
    display: block;
    padding: 10px 24px;
    font-size: 14px;
    color: var(--color-text-muted);
    transition: background-color 0.2s ease, color 0.2s ease;
}

.simple-menu ul a::after {
    display: none;
}

.simple-menu ul a:hover {
    background-color: #f5f7fa;
    color: var(--color-primary);
}

/* 右侧语言切换和咨询按钮 */
.header-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-text-muted);
}

.lang-divider {
    color: var(--color-border);
}

/* ==================== 主视觉区域 Hero ==================== */
.hero {
    padding-top: var(--header-height);
    min-height: 620px;
    background-color: #FFFFFF;
    position: relative;
    overflow: hidden;
}

.hero-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 620px;
    position: relative;
    color:#fff;
}

.hero-content {
    max-width: 520px;
    z-index: 2;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 50px;
    font-weight: 600;
    line-height: 1.15;
    color: var(--color-navy);
    letter-spacing: 2px;
}

/* 标题下方短横线装饰 */
.title-underline {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary-light), var(--color-primary));
    margin: 24px 0 28px;
}

.hero-desc {
    font-size: 15px;
    color: var(--color-text-muted);
    line-height: 1.9;
}

/* 右侧大型 V 形图形 */
.hero-graphic {
    position: absolute;
    right: -80px;
    top: 50%;
    transform: translateY(-50%);
    width: 600px;
    height: auto;
    z-index: 1;
    opacity: 1;
}

.hero-graphic img {
    width: 100%;
    height: auto;
    display: block;
    background-color: #FFFFFF;
    /* 无阴影，避免底部产生蓝色色差 */
}

/* ==================== 服务卡片区域 ==================== */
.services {
    padding: 80px 0;
    background-color: var(--color-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    position: relative;
    padding: 32px 24px;
    border: 1px solid var(--color-border);
    background-color: #fff;
    transition: box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

/* 服务卡片顶部蓝色条：默认 scaleX(0) 隐藏，移入时显示 */
.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s ease;
    z-index: 1;
}

/* CSS 悬停时显示（增强） */
.service-card:hover::before,
/* JS 移入移出事件控制显示 */
.service-card.active::before {
    transform: scaleX(1);
}

.service-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.service-number {
    font-size: 13px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.service-title {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 600;
    color: var(--color-navy);
    margin-bottom: 14px;
}

.service-desc {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: 24px;
    flex-grow: 1;
}

/* ==================== 赛车赞助横幅 ==================== */
.racing-banner {
    position: relative;
    height: 420px;
    /* 使用截图1中的赛车部分作为背景 */
    background-image: url('../images/Indy-500-2048x1366.jpg');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

/* 暗色遮罩，增强文字可读性 */
.banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(5, 22, 51, 0.55),
        rgba(5, 22, 51, 0.75)
    );
}

.banner-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
}

.banner-title {
    font-family: var(--font-serif);
    font-size: 34px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.banner-desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 28px;
    line-height: 1.8;
}

/* ==================== 通用区域标题样式 ==================== */
.section-title {
    font-family: var(--font-serif);
    font-size: 34px;
    font-weight: 600;
    color: var(--color-navy);
    text-align: center;
    margin-bottom: 16px;
}

.section-title-underline {
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary-light), var(--color-primary));
    margin: 0 auto 20px;
}

.section-subtitle {
    text-align: center;
    font-size: 15px;
    color: var(--color-text-muted);
    margin-bottom: 48px;
}

.section-cta {
    text-align: center;
    margin-top: 48px;
}

/* ==================== 国际监管区域 ==================== */
.regulation {
    padding: var(--section-padding) 0;
    background-color: var(--color-bg);
}

.regulatory-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
}

.regulatory-card {
    border: 1px solid var(--color-border);
    padding: 24px 16px;
    text-align: center;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: box-shadow 0.3s ease;
}

.regulatory-card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.regulatory-card h4 {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 600;
    color: var(--color-navy);
    margin-bottom: 6px;
    line-height: 1.3;
}

.regulatory-card span {
    font-size: 12px;
    color: var(--color-text-muted);
}

.ciro-logo {
    margin-bottom: 6px;
}

.ciro-logo span {
    display: block;
    font-size: 22px;
    font-weight: 700;
    color: var(--color-navy);
    font-style: italic;
}

.ciro-logo small {
    font-size: 9px;
    color: var(--color-text-muted);
    line-height: 1.2;
    display: block;
}

/* ==================== 全球会员区域 ==================== */
.membership {
    padding: var(--section-padding) 0 100px;
    background-color: var(--color-bg);
    border-top: 1px solid var(--color-border);
}

.membership-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
}

.member-card {
    border: 1px solid var(--color-border);
    padding: 24px 16px;
    text-align: center;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: box-shadow 0.3s ease;
}

.member-card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.member-card h4 {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 600;
    color: var(--color-navy);
    margin-bottom: 6px;
    line-height: 1.3;
}

.member-card span {
    font-size: 12px;
    color: var(--color-text-muted);
}

.member-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.lbma-sun {
    font-size: 36px;
    color: #D4A84B;
}

.member-logo strong {
    display: block;
    font-size: 16px;
    color: var(--color-navy);
    line-height: 1.2;
}

.member-logo small {
    display: block;
    font-size: 10px;
    color: var(--color-text-muted);
    letter-spacing: 1px;
}

/* ==================== 新闻资讯轮播图 ==================== */
.news {
    background-color: var(--color-bg-light);
    position: relative;               /* 作为左右箭头和指示点的定位参照 */
}

/* 轮播容器：左右两栏（图片 + 内容），高度固定避免被大图撑开 */
.news-slider {
    display: block;
    position: relative;
    height: 420px;
    overflow: hidden;                 /* 隐藏非当前轮播项 */
}

/* 单个轮播项：默认绝对定位叠放，通过透明度切换显示 */
.news-slide {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 420px;
    position: absolute;               /* 全部叠放，避免撑高容器 */
    inset: 0;
    opacity: 0;                       /* 默认隐藏 */
    visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

/* 当前展示的轮播项 */
.news-slide.active {
    opacity: 1;
    visibility: visible;
    position: relative;               /* 当前项占据文档流，保证容器高度 */
}

/* 左侧新闻图片：固定高度，大图由 object-fit: cover 裁切，不会撑开布局 */
.news-image {
    position: relative;
    height: 420px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;                /* 图片裁切填满，保持比例 */
    display: block;
}

/* 左右切换箭头（定位在轮播容器两侧，垂直居中） */
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 70px;
    background-color: rgba(5, 22, 51, 0.85);
    color: #fff;
    border: none;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.25s ease;
    z-index: 10;
}

.slider-arrow:hover {
    background-color: var(--color-navy);
}

.slider-prev {
    left: 0;
}

.slider-next {
    right: 0;
}

/* 右侧新闻内容 */
.news-content {
    padding: 80px 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
}

.news-title {
    font-family: var(--font-serif);
    font-size: 30px;
    font-weight: 600;
    color: var(--color-navy);
    line-height: 1.4;
    margin-bottom: 20px;
}

.news-date {
    display: block;
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.news-desc {
    font-size: 15px;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: 28px;
}

/* 底部指示点 */
.slider-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 20px 0;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #ccc;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

/* 当前指示点高亮为蓝色并略微放大 */
.dot.active {
    background-color: var(--color-primary);
    transform: scale(1.25);
}

.dot:hover {
    background-color: var(--color-primary-light);
}

/* ==================== 页脚 ==================== */
.site-footer {
    background-color: var(--color-navy);
    color: #fff;
    padding-top: 70px;
}

.footer-main {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 60px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* 页脚左侧品牌区：单列布局 */
.footer-brand {
    display: grid;
    grid-template-columns: 1fr;
    align-items: start;
}

/* 品牌区内的每一列 */
.footer-brand-col {
    display: flex;
    flex-direction: column;
    gap: 23px;
}

.footer-logo {
    display: flex;
    align-items: center;
}

/* 页脚主 Logo 图片 */
.footer-logo-img {
    height: 44px;
    width: auto;
    object-fit: contain;
    display: block;
}

/* Capital 版本尺寸更小 */
.footer-logo-img.capital-img {
    height: 38px;
}

.footer-brand-col p{
    font-size: 14px;
    color: #aaaaaa;
}

/* 页脚徽章容器：用于放置图片或文字回退 */
.footer-badge {
    display: flex;
    align-items: center;
}

/* 页脚徽章图片：限制高度，与参考图对齐 */
.footer-badge-img {
    height: 34px;
    width: auto;
    object-fit: contain;
    display: block;
}

/* CIRO 文字回退样式 */
.footer-badge.ciro {
    color: #fff;
}

.footer-badge-fallback {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-badge.ciro .check-icon {
    width: 32px;
    height: 32px;
    border: 2px solid #fff;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
}

.footer-badge.ciro strong {
    display: block;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1px;
}

.footer-badge.ciro small {
    font-size: 10px;
    color: rgba(255, 255, 255, 0.7);
}

/* CIPF 文字回退样式 */
.footer-badge.cipf {
    align-items: flex-start;
    flex-direction: column;
}

.footer-badge.cipf strong {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 2px;
    line-height: 1;
}

.footer-badge.cipf span {
    font-size: 11px;
    letter-spacing: 3px;
    color: rgba(255, 255, 255, 0.8);
}

/* 页脚链接列 */
.footer-links {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}

.link-column h4 {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 18px;
}

.link-column li {
    margin-bottom: 10px;
}

.link-column a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    position: relative;               /* 相对定位，用于定位下划线 */
    display: inline-block;            /* 让下划线宽度跟随文字 */
    transition: color 0.25s ease;
}

/* 鼠标移入时显示下划线（从左侧滑入） */
.link-column a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: #fff;
    transform: scaleX(0);             /* 默认隐藏 */
    transform-origin: left;
    transition: transform 0.3s ease;  /* 滑入动画 */
}

.link-column a:hover {
    color: #fff;
}

/* 鼠标移入时下划线展开 */
.link-column a:hover::after {
    transform: scaleX(1);
}

/* 页脚底部版权区 */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-legal {
    display: flex;
    gap: 16px;
}

.footer-legal a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.25s ease;
}

.footer-legal a:hover {
    color: #fff;
}

/* 免责声明 */
.footer-disclaimer {
    padding: 24px 0 40px;
}

.footer-disclaimer p {
    font-size: 12px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.5);
}

/* ==================== 返回顶部按钮 ==================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: #fff;
    border: 1px solid var(--color-border);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
    z-index: 999;
    transition: all 0.25s ease;
}

.back-to-top:hover {
    background-color: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
    transform: translateY(-3px);
}

/* ==================== 响应式适配 ==================== */
/*
  说明：视口变窄时（浏览器缩放、平板、手机）布局自动重排，
  卡片列数递减、导航收窄、页脚单列，适配不同屏幕尺寸。
*/

/* 平板适配 */
@media (max-width: 1024px) {
    .services-grid,
    .regulatory-grid,
    .membership-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }

    /* 平板：轮播项改为上下单列，图片固定高度，容器高度交给内容撑 */
    .news-slider {
        height: auto;
    }

    .news-slide {
        grid-template-columns: 1fr;
    }

    .news-image {
        height: 280px;
    }

    /* 平板：4 列大下拉菜单改为 2 列，并贴合屏幕宽度 */
    .mega-menu {
        min-width: 0;
        width: calc(100vw - 40px);
        max-width: 560px;
    }

    .mega-inner {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

/* 手机适配 */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
        --section-padding: 50px;
    }

    .main-nav,
    .header-actions .lang-switch {
        display: none;
    }

    /* 手机：头部只保留 Logo 和咨询按钮，压缩间距 */
    .header-inner {
        justify-content: space-between;
    }

    .hero {
        min-height: auto;
        padding-top: var(--header-height);
    }

    .hero-inner {
        min-height: 480px;
        padding: 40px 0;
    }

    .hero-content {
        max-width: 100%;
        padding-right: 40%;
    }

    .hero-title {
        font-size: 42px;
    }

    .hero-graphic {
        width: 280px;
        height: auto;
        right: -80px;
        opacity: 0.25;
    }

    .services-grid,
    .regulatory-grid,
    .membership-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 手机：服务卡片、监管/会员卡片间距收紧 */
    .service-card,
    .regulatory-card,
    .member-card {
        padding: 20px 16px;
    }

    .racing-banner {
        height: 360px;
    }

    .banner-title {
        font-size: 26px;
    }

    .news-content {
        padding: 50px 30px;
    }

    .news-title {
        font-size: 24px;
    }

    .news-image {
        min-height: 240px;
    }

    .footer-main {
        grid-template-columns: 1fr;
    }

    /* 手机：页脚品牌区保持两列但收紧间距 */
    .footer-brand {
        gap: 16px;
    }

    /* 手机：快捷导航与客户端下载改为上下排列，避免两列过挤 */
    .footer-links {
        flex-direction: column;
        align-items: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .footer-legal {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px 16px;
    }
}

@media (max-width: 480px) {
    .services-grid,
    .regulatory-grid,
    .membership-grid {
        grid-template-columns: 1fr;
    }

    .hero-content {
        padding-right: 0;
    }

    .hero-title {
        font-size: 34px;
    }

    .hero-inner {
        min-height: 500px;
    }

    /* 手机：页脚品牌区改为单列，App 展示居中 */
    .footer-brand {
        grid-template-columns: 1fr;
    }

    /* 手机：4 列大下拉菜单改为单列 */
    .mega-inner {
        grid-template-columns: 1fr;
    }

    /* 手机：轮播箭头缩小，避免遮挡内容 */
    .slider-arrow {
        width: 36px;
        height: 56px;
    }
}

/* ==================== 服务详情弹窗 ==================== */
.service-overlay {
    position: fixed;
    inset: 0;
    background: rgba(5, 22, 51, 0.6);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

.service-overlay.active {
    opacity: 1;
    visibility: visible;
}

.service-detail {
    background: #fff;
    width: 100%;
    max-width: 1060px;
    max-height: 85vh;
    overflow-y: auto;
    border-radius: 16px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
    position: relative;
    transform: translateY(24px) scale(0.98);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-overlay.active .service-detail {
    transform: translateY(0) scale(1);
}

/* 关闭按钮 */
.service-close {
    position: absolute;
    top: 18px;
    right: 18px;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.18);
    font-size: 20px;
    line-height: 1;
    color: #fff;
    cursor: pointer;
    z-index: 10;
    transition: background 0.25s, transform 0.25s;
}

.service-close:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: rotate(90deg);
}

/* 弹窗面板：深蓝渐变头部 + 内容区 */
.service-panel {
    display: none;
}

.service-panel.active {
    display: block;
}

.service-panel-head {
    position: relative;
    overflow: hidden;
    padding: 44px 56px 40px;
    background: linear-gradient(135deg, var(--color-navy-light) 0%, var(--color-navy) 75%);
    color: #fff;
}

/* 头部装饰圆环 */
.service-panel-head::before {
    content: '';
    position: absolute;
    right: -60px;
    top: -80px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.08);
}

.service-panel-head::after {
    content: '';
    position: absolute;
    right: 30px;
    bottom: -70px;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: rgba(0, 163, 224, 0.12);
}

.service-head-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--color-primary-light);
    border: 1px solid rgba(0, 163, 224, 0.45);
    border-radius: 20px;
    padding: 4px 14px;
    margin-bottom: 16px;
}

.service-panel-title {
    position: relative;
    font-family: var(--font-serif);
    font-size: 34px;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 8px;
}

.service-panel-sub {
    position: relative;
    font-size: 14px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.55);
}

.service-detail-inner {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 44px;
    align-items: start;
    padding: 40px 56px 52px;
}

.service-detail-body {
    font-size: 15px;
    line-height: 1.9;
    color: var(--color-text);
}

.service-detail-body p {
    margin-bottom: 16px;
}

.service-detail-body p:last-of-type {
    margin-bottom: 0;
}

/* 批发银行正文中的列表 */
.service-body-list {
    margin-top: 22px;
    padding: 0;
    list-style: none;
}

.service-body-list li {
    position: relative;
    padding: 10px 0 10px 28px;
    margin-bottom: 0;
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text);
    border-bottom: 1px dashed var(--color-border);
}

.service-body-list li:last-child {
    border-bottom: none;
}

.service-body-list li::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 18px;
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    box-shadow: 0 0 0 3px rgba(0, 119, 200, 0.15);
}

/* 右侧栏 */
.service-detail-sidebar {
    background: var(--color-bg-light);
    border-radius: 14px;
    padding: 24px 22px;
    border: 1px solid var(--color-border);
}

.service-sidebar-title {
    font-family: var(--font-serif);
    font-size: 16px;
    font-weight: 600;
    color: var(--color-navy);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-primary);
}

/* 特性列表：白色卡片 + 对勾图标 */
.service-feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
    margin-bottom: 10px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(5, 22, 51, 0.05);
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text);
    transition: transform 0.2s, box-shadow 0.2s;
}

.service-feature-list li:last-child {
    margin-bottom: 0;
}

.service-feature-list li:hover {
    transform: translateX(3px);
    box-shadow: 0 4px 14px rgba(5, 22, 51, 0.1);
}

.service-feature-list li::before {
    content: '✓';
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    margin-top: 2px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    line-height: 18px;
    text-align: center;
}

/* 批发银行右侧咨询卡片：蓝色渐变 */
.service-consult-card {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: 14px;
    padding: 28px 24px;
    margin-bottom: 18px;
    color: #fff;
    box-shadow: 0 10px 26px rgba(0, 119, 200, 0.3);
}

.service-consult-card h4 {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 12px;
    line-height: 1.5;
}

.service-consult-card p {
    font-size: 13px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 20px;
}

.service-consult-card .btn-white {
    display: block;
    width: 100%;
    text-align: center;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    background: #fff;
    color: var(--color-primary);
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

.service-consult-card .btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
}

/* 下载宣传册链接 */
.service-download-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    border: 1px solid rgba(0, 119, 200, 0.35);
    border-radius: 10px;
    font-size: 14px;
    color: var(--color-primary);
    text-decoration: none;
    transition: background 0.2s, color 0.2s;
}

.service-download-link:hover {
    background: rgba(0, 119, 200, 0.06);
    color: var(--color-primary-dark);
}

.service-download-link svg {
    flex-shrink: 0;
}

/* 服务详情弹窗 - 响应式 */
@media (max-width: 900px) {
    .service-detail-inner {
        grid-template-columns: 1fr;
        gap: 28px;
        padding: 28px 28px 40px;
    }

    .service-panel-head {
        padding: 32px 28px 28px;
    }

    .service-panel-title {
        font-size: 28px;
    }
}

@media (max-width: 600px) {
    .service-overlay {
        padding: 0;
        align-items: flex-end;
    }

    .service-detail {
        max-height: 92vh;
        border-radius: 16px 16px 0 0;
    }

    .service-panel-head {
        padding: 28px 20px 24px;
    }

    .service-panel-title {
        font-size: 24px;
    }

    .service-detail-inner {
        padding: 24px 20px 32px;
    }

    .service-close {
        top: 14px;
        right: 14px;
    }
}

/* ==================== 章节板块（chapter-section）==================== */
.chapter-section {
    position: relative;
    overflow: hidden;
    padding: 100px 0;
}

/* 深色章节：深蓝渐变背景 */
.chapter-dark {
    background: linear-gradient(135deg, var(--color-navy-light) 0%, var(--color-navy) 70%);
}

/* 深蓝章节：更深的午夜蓝 */
.chapter-navy {
    background: linear-gradient(180deg, #081C3A 0%, var(--color-navy) 100%);
}

/* 浅色章节 */
.chapter-light {
    background-color: var(--color-bg-light);
}

/* 浅色交替章节：白底 */
.chapter-light.alt {
    background-color: var(--color-bg);
}

/* 暗色遮罩：增强背景层次，保证文字可读 */
.chapter-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(5, 22, 51, 0.30),
        rgba(5, 22, 51, 0.05)
    );
    pointer-events: none;
}

/* 章节内容容器 */
.chapter-inner {
    position: relative;
    z-index: 1;
    max-width: 880px;
    margin: 0 auto;
    text-align: center;
}

.chapter-title {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: 1px;
    color: var(--color-navy);
}

.chapter-dark .chapter-title,
.chapter-navy .chapter-title {
    color: #ffffff;
}

.chapter-divider {
    width: 60px;
    height: 3px;
    border-radius: 2px;
    margin: 22px auto 30px;
    background: linear-gradient(90deg, var(--color-primary-light), var(--color-primary));
}

.chapter-body {
    text-align: left;
}

.chapter-text {
    font-size: 15px;
    line-height: 2;
    color: var(--color-text-muted);
}

.chapter-dark .chapter-text,
.chapter-navy .chapter-text {
    color: rgba(255, 255, 255, 0.85);
}

/* 展开的完整内容：默认隐藏 */
.chapter-full {
    display: none;
    margin-top: 20px;
}

.chapter-full p {
    font-size: 15px;
    line-height: 2;
    color: var(--color-text-muted);
    margin-bottom: 12px;
}

.chapter-full p:last-child {
    margin-bottom: 0;
}

.chapter-dark .chapter-full p,
.chapter-navy .chapter-full p {
    color: rgba(255, 255, 255, 0.85);
}

.chapter-full p strong {
    color: var(--color-primary-dark);
    font-weight: 700;
}

.chapter-dark .chapter-full p strong,
.chapter-navy .chapter-full p strong {
    color: var(--color-primary-light);
}

/* 展开状态 */
.chapter-section.expanded .chapter-full {
    display: block;
    animation: chapterFadeIn 0.45s ease both;
}

@keyframes chapterFadeIn {
    from {
        opacity: 0;
        transform: translateY(14px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 了解更多 / 收起按钮 */
.chapter-toggle {
    margin-top: 38px;
    min-width: 140px;
    text-align: center;
}

/* 章节板块手机适配 */
@media (max-width: 768px) {
    .chapter-section {
        padding: 64px 0;
    }

    .chapter-title {
        font-size: 26px;
    }

    .chapter-inner {
        padding: 0 4px;
    }

    .chapter-toggle {
        margin-top: 28px;
    }
}

/* ==================== 首页欢迎弹窗（左右滑动多页） ==================== */
/* 全屏遮罩：覆盖整个视口，内容居中 */
.popup-mask {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(5, 22, 51, 0.6);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

.popup-mask.show {
    opacity: 1;
    visibility: visible;
}

/* 弹窗卡片容器 */
.popup-box {
    position: relative;
    width: 100%;
    max-width: 640px;
    background: #ffffff;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
    transform: translateY(30px) scale(0.95);
    transition: transform 0.35s ease;
}

.popup-mask.show .popup-box {
    transform: translateY(0) scale(1);
}

/* 滑动视口：隐藏溢出的页面 */
.popup-slider {
    overflow: hidden;
    width: 100%;
}

/* 滑动轨道：横向排列多个页面 */
.popup-track {
    display: flex;
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.35, 1);
}

/* 单个页面：默认左图右文两栏 */
.popup-slide {
    flex: 0 0 100%;
    display: flex;
    min-width: 0;
}

/* 左侧图片区：深蓝渐变背景 */
.popup-figure {
    flex: 0 0 38%;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 380px;
    background: linear-gradient(160deg, var(--color-navy-light) 0%, var(--color-navy) 100%);
    padding: 30px;
}

.popup-figure img {
    width: 100%;
    max-width: 220px;
    display: block;
}

/* 右侧内容区 */
.popup-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 34px 30px 38px;
    text-align: left;
}

.popup-kicker {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--color-primary);
    text-transform: uppercase;
    margin-bottom: 10px;
}

.popup-title {
    font-family: var(--font-serif);
    font-size: 26px;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: 1px;
    color: var(--color-navy);
}

.popup-divider {
    width: 44px;
    height: 3px;
    border-radius: 2px;
    margin: 16px 0 18px;
    background: linear-gradient(90deg, var(--color-primary-light), var(--color-primary));
}

.popup-desc {
    font-size: 14px;
    line-height: 1.9;
    color: var(--color-text-muted);
    margin-bottom: 26px;
}

.popup-date {
    display: inline-block;
    font-size: 13px;
    color: #999;
    margin-bottom: 12px;
}

.popup-btn {
    align-self: flex-start;
    min-width: 140px;
}

/* 左右切换箭头（PC 端悬停显示） */
.popup-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    width: 36px;
    height: 52px;
    border: none;
    background: rgba(255, 255, 255, 0.88);
    color: var(--color-navy);
    font-size: 18px;
    line-height: 52px;
    text-align: center;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.16);
    opacity: 0;
    transition: opacity 0.2s ease, background 0.2s ease;
}

.popup-arrow:hover {
    background: #ffffff;
}

.popup-box:hover .popup-arrow {
    opacity: 1;
}

.popup-prev {
    left: 0;
    border-radius: 0 8px 8px 0;
}

.popup-next {
    right: 0;
    border-radius: 8px 0 0 8px;
}

/* 指示点 */
.popup-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 0 0 14px;
}

.popup-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(5, 22, 51, 0.22);
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.popup-dot.active {
    background: var(--color-primary);
    transform: scale(1.25);
}

/* 右上角关闭按钮 */
.popup-close {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 4;
    width: 34px;
    height: 34px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    color: var(--color-navy);
    font-size: 22px;
    line-height: 34px;
    text-align: center;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
    transition: background 0.2s ease, transform 0.2s ease;
}

.popup-close:hover {
    background: #ffffff;
    transform: rotate(90deg);
}

/* 弹窗手机适配：页面改为上下堆叠，隐藏箭头 */
@media (max-width: 768px) {
    .popup-box {
        max-width: 400px;
    }

    .popup-slide {
        flex-direction: column;
    }

    .popup-figure {
        flex: none;
        min-height: 0;
        height: 150px;
        padding: 20px;
    }

    .popup-figure img {
        max-width: 120px;
    }

    .popup-content {
        padding: 24px 22px 28px;
    }

    .popup-title {
        font-size: 22px;
    }

    .popup-desc {
        font-size: 13px;
    }

    .popup-arrow {
        display: none;
    }

    .popup-dots {
        padding-bottom: 12px;
    }
}

/* ==================== 公司介绍页 · 内页横幅 ==================== */
.page-hero {
    position: relative;
    padding: 130px 0 100px;
    text-align: center;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 60%, #2b4d8f 100%);
    overflow: hidden;
}

/* 装饰圆环 */
.page-hero::before,
.page-hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
}

.page-hero::before {
    width: 300px;
    height: 300px;
    top: -120px;
    left: -80px;
}

.page-hero::after {
    width: 200px;
    height: 200px;
    bottom: -90px;
    right: 60px;
}

.page-hero-inner {
    position: relative;
    z-index: 1;
}

.page-hero-kicker {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 5px;
    color: var(--color-primary-light);
    text-transform: uppercase;
    margin-bottom: 16px;
}

.page-hero-title {
    font-family: var(--font-serif);
    font-size: 44px;
    font-weight: 700;
    letter-spacing: 3px;
    color: #ffffff;
}

.page-hero .title-underline {
    width: 64px;
    height: 4px;
    border-radius: 2px;
    margin: 24px auto 26px;
    background: linear-gradient(90deg, var(--color-primary-light), var(--color-primary));
}

.page-hero-desc {
    max-width: 720px;
    margin: 0 auto;
    font-size: 16px;
    line-height: 2;
    color: rgba(255, 255, 255, 0.82);
}

/* ==================== 公司介绍页 · 概况统计 ==================== */
.company-stats {
    padding: 80px 0;
    background: #f6f8fc;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 22px;
}

.stat-item {
    text-align: center;
    padding: 34px 16px 30px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(5, 22, 51, 0.06);
    border-top: 3px solid transparent;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.stat-item:hover {
    transform: translateY(-4px);
    border-top-color: var(--color-primary);
    box-shadow: 0 10px 24px rgba(5, 22, 51, 0.1);
}

.stat-num {
    display: block;
    font-family: var(--font-serif);
    font-size: 42px;
    font-weight: 700;
    line-height: 1.1;
    color: var(--color-navy);
}

.stat-label {
    display: block;
    margin-top: 10px;
    font-size: 14px;
    color: var(--color-text-muted);
}

/* ==================== 公司介绍页 · 合作号召区 ==================== */
.company-cta {
    position: relative;
    padding: 96px 0;
    text-align: center;
    background: linear-gradient(120deg, var(--color-navy) 0%, #1d3a6d 55%, var(--color-navy-light) 100%);
    overflow: hidden;
}

.company-cta::before {
    content: "";
    position: absolute;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    top: -110px;
    right: 8%;
}

.company-cta-inner {
    position: relative;
    z-index: 1;
}

.company-cta h2 {
    font-family: var(--font-serif);
    font-size: 34px;
    font-weight: 700;
    letter-spacing: 2px;
    color: #ffffff;
}

.company-cta p {
    max-width: 640px;
    margin: 18px auto 34px;
    font-size: 15px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.82);
}

.company-cta-btn {
    min-width: 180px;
}

/* 公司介绍页 1024 以下：统计改为 2 列 */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 公司介绍页手机适配 */
@media (max-width: 768px) {
    .page-hero {
        padding: 84px 0 64px;
    }

    .page-hero-title {
        font-size: 32px;
    }

    .page-hero-kicker {
        font-size: 12px;
        letter-spacing: 3px;
    }

    .page-hero-desc {
        font-size: 14px;
    }

    .company-stats {
        padding: 56px 0;
    }

    .stats-grid {
        gap: 14px;
    }

    .stat-num {
        font-size: 32px;
    }

    .company-cta {
        padding: 72px 0;
    }

    .company-cta h2 {
        font-size: 26px;
    }
}

/* ==================== 公司介绍页 · 平台简介引言 ==================== */
.platform-intro {
    position: relative;
    padding: 88px 0 76px;
    text-align: center;
    background: linear-gradient(180deg, #ffffff 0%, var(--color-bg-light) 100%);
    overflow: hidden;
}

.platform-intro-kicker {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 5px;
    color: var(--color-primary);
    text-transform: uppercase;
    margin-bottom: 16px;
}

.platform-intro-title {
    font-family: var(--font-serif);
    font-size: 40px;
    font-weight: 700;
    letter-spacing: 2px;
    line-height: 1.4;
    color: var(--color-navy);
}

.platform-intro-sub {
    margin-top: 16px;
    font-size: 17px;
    font-weight: 500;
    letter-spacing: 4px;
    color: var(--color-primary-dark);
}

.platform-intro .title-underline {
    width: 64px;
    height: 4px;
    border-radius: 2px;
    margin: 26px auto 0;
    background: linear-gradient(90deg, var(--color-primary-light), var(--color-primary));
}

/* ==================== 公司介绍页 · 能力/技术列表 ==================== */
.capability-list,
.tech-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.capability-list li,
.tech-list li {
    position: relative;
    padding: 18px 22px 18px 58px;
    margin-bottom: 14px;
    background: #ffffff;
    border-radius: 10px;
    border-left: 3px solid var(--color-primary);
    box-shadow: 0 2px 12px rgba(5, 22, 51, 0.05);
    font-size: 15px;
    line-height: 2;
    color: var(--color-text-muted);
    text-align: left;
    transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.capability-list li:hover,
.tech-list li:hover {
    box-shadow: 0 6px 20px rgba(5, 22, 51, 0.1);
    transform: translateY(-2px);
}

.capability-list li::before,
.tech-list li::before {
    content: "";
    position: absolute;
    left: 25px;
    top: 29px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
}

.capability-list li strong,
.tech-list li strong {
    color: var(--color-navy);
    font-weight: 700;
}

.chapter-light .tech-list li strong {
    color: var(--color-navy);
}

/* ==================== 公司介绍页 · 平台结语 ==================== */
.company-summary {
    position: relative;
    padding: 64px 0;
    text-align: center;
    background: linear-gradient(120deg, #081C3A 0%, var(--color-navy) 60%, #1d3a6d 100%);
    overflow: hidden;
}

.company-summary::before {
    content: "";
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    top: -80px;
    left: -60px;
}

.company-summary::after {
    content: "";
    position: absolute;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    bottom: -60px;
    right: -40px;
}

.company-summary p {
    position: relative;
    z-index: 1;
    max-width: 780px;
    margin: 0 auto;
    font-family: var(--font-serif);
    font-size: 26px;
    font-weight: 600;
    letter-spacing: 2px;
    line-height: 1.7;
    color: #ffffff;
}

/* ==================== 客户端下载页（点击"登入"进入） ==================== */
.dl-page {
    padding: 80px 0 90px;
    background: linear-gradient(180deg, #f2f7fc 0%, #ffffff 100%);
}

.dl-page-head {
    text-align: center;
}

.dl-page-title {
    font-family: var(--font-serif);
    font-size: 38px;
    font-weight: 700;
    color: var(--color-text);
}

.dl-page-sub {
    margin-top: 14px;
    font-size: 16px;
    color: var(--color-text-muted);
}

.dl-page-box {
    max-width: 860px;
    margin: 44px auto 0;
    background: #ffffff;
    border: 1px solid rgba(0, 119, 200, 0.1);
    border-radius: 16px;
    box-shadow: 0 16px 44px rgba(15, 44, 92, 0.08);
    padding: 44px 40px 40px;
}

.dl-items {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.dl-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    padding: 30px 20px 26px;
    border-radius: 12px;
    background: #f7fafd;
    border: 1px solid #e3ecf4;
    color: var(--color-text);
    text-decoration: none;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.dl-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-primary);
    box-shadow: 0 12px 28px rgba(0, 119, 200, 0.12);
}

.dl-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 6px 16px rgba(15, 44, 92, 0.1);
}

.dl-icon svg {
    width: 30px;
    height: 30px;
}

.dl-card.android .dl-icon {
    color: #3ddc84;
}

.dl-card.apple .dl-icon {
    color: #a2aaad;
}

.dl-card.local .dl-icon {
    color: #4da3ff;
}

.dl-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.dl-info small {
    font-size: 12px;
    color: var(--color-text-muted);
}

.dl-info strong {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-text);
}

.dl-go {
    font-size: 13px;
    color: var(--color-primary);
    font-weight: 500;
}

.dl-card.disabled {
    opacity: 0.45;
    filter: grayscale(1);
    cursor: not-allowed;
    pointer-events: none;
}

.dl-empty {
    text-align: center;
    color: var(--color-text-muted);
    padding: 30px 0;
}

.dl-page-tip {
    text-align: center;
    margin-top: 24px;
    font-size: 14px;
    color: var(--color-text-muted);
}

.dl-page-tip a {
    color: var(--color-primary);
}

/* ==================== 页脚 · 快捷导航卡片 ==================== */
/* 快捷导航与客户端下载左右两列并排 */
.footer-links {
    display: flex;
    flex-direction: row;
    align-items: stretch;
    justify-content: center;
    gap: 26px;
}

.footer-links .link-column {
    flex: 1 1 0;
    min-width: 0;
    max-width: 360px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 28px 32px;
}

.footer-quick-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px 24px;
}

.footer-quick-grid li {
    margin-bottom: 0;
}

/* ==================== 页脚下载区（安卓/苹果/本地） ==================== */
/* 与快捷导航卡片左右并排，同风格卡片 + 三列竖排图标按钮 */
.download-section {
    flex: 1 1 0;
    min-width: 0;
    max-width: 360px;
    box-sizing: border-box;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px 22px;
}

.download-title {
    display: block;
    width: 100%;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    text-align: center;
    margin-bottom: 16px;
}

.download-items {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

/* 下载按钮：竖排（图标在上、文字在下） */
.download-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 6px;
    border-radius: 10px;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: #fff;
    transition: background 0.3s, border-color 0.3s, transform 0.3s, opacity 0.3s;
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.28);
    transform: translateY(-2px);
}

/* 图标 */
.download-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
}

.download-icon svg {
    width: 100%;
    height: 100%;
}

/* 三种类别配色 */
.download-btn.android .download-icon { color: #3ddc84; }
.download-btn.apple .download-icon { color: #a2aaad; }
.download-btn.local .download-icon { color: #4da3ff; }

.download-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1.25;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.download-text small {
    font-size: 11px;
    font-weight: 400;
    opacity: 0.6;
}

/* 禁用状态：后台开关关闭或链接为空 */
.download-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    filter: grayscale(1);
    pointer-events: none;
}

.download-btn.disabled:hover {
    transform: none;
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.14);
}

/* ==================== 新闻详情页（PC） ==================== */
.news-detail {
    padding: 60px 0 80px;
    background: #fff;
}

.news-detail-container {
    max-width: 900px;
}

.news-detail-breadcrumb {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 28px;
}

.news-detail-breadcrumb a {
    color: var(--color-primary);
}

.news-detail-breadcrumb .breadcrumb-sep {
    margin: 0 8px;
    color: #bbb;
}

.news-detail-breadcrumb .breadcrumb-current {
    color: var(--color-text);
}

.news-detail-header {
    text-align: center;
    margin-bottom: 34px;
    padding-bottom: 26px;
    border-bottom: 1px solid var(--color-border);
}

.news-detail-title {
    font-family: var(--font-serif);
    font-size: 30px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.4;
    margin-bottom: 14px;
}

.news-detail-meta {
    font-size: 14px;
    color: var(--color-text-muted);
}

.news-detail-body {
    font-size: 16px;
    line-height: 1.9;
    color: #333;
    word-break: break-word;
}

.news-detail-body img {
    max-width: 100%;
    height: auto;
    margin: 14px 0;
}

.news-detail-body p {
    margin-bottom: 16px;
}

.news-detail-body h2,
.news-detail-body h3 {
    margin: 20px 0 10px;
}

/* 上一篇 / 下一篇 链条导航 */
.news-detail-nav {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 46px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.news-detail-nav-link {
    flex: 0 1 48%;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 14px 18px;
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    text-decoration: none;
    transition: border-color 0.3s, background 0.3s;
}

.news-detail-nav-link:hover {
    border-color: var(--color-primary);
    background: #eef6fc;
}

.news-detail-nav-link .nav-label {
    font-size: 12px;
    color: var(--color-text-muted);
    letter-spacing: 1px;
}

.news-detail-nav-link .nav-title {
    font-size: 15px;
    color: var(--color-text);
    line-height: 1.5;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.news-detail-nav-link.next {
    text-align: right;
    align-items: flex-end;
}

.news-detail-nav-link.disabled {
    opacity: 0.5;
    pointer-events: none;
}

.news-detail-back {
    text-align: center;
    margin-top: 36px;
}

/* 详情页封面图 */
.news-detail-figure {
    margin: 0 0 30px;
    border-radius: 10px;
    overflow: hidden;
    background: var(--color-bg-light);
}

.news-detail-figure img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 480px;
    object-fit: cover;
    border-radius: 10px;
}

/* 法律信息图片组（画廊） */
.page-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
    margin: 0 0 28px;
}

.page-gallery-item {
    margin: 0;
    border-radius: 10px;
    overflow: hidden;
    background: var(--color-bg-light);
}

.page-gallery-item img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 420px;
    object-fit: cover;
    transition: transform 0.35s ease;
}

.page-gallery-item:hover img {
    transform: scale(1.03);
}

/* 全部新闻资讯列表 */
.news-detail-all {
    margin-top: 48px;
    padding-top: 28px;
    border-top: 1px solid var(--color-border);
}

.news-detail-all-title {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 18px;
    padding-left: 14px;
    position: relative;
}

.news-detail-all-title::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 18px;
    background: var(--color-primary);
    border-radius: 2px;
}

.news-detail-list {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 18px;
}

.news-detail-list-item a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    text-decoration: none;
    transition: border-color 0.3s, background 0.3s;
}

.news-detail-list-item a:hover {
    border-color: var(--color-primary);
    background: #eef6fc;
}

.news-detail-list-item .list-title {
    font-size: 14px;
    color: var(--color-text);
    line-height: 1.5;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.news-detail-list-item .list-date {
    flex: 0 0 auto;
    font-size: 12px;
    color: var(--color-text-muted);
}

.news-detail-list-item.current a {
    border-color: var(--color-primary);
    background: #eef6fc;
}

.news-detail-list-item.current .list-title {
    color: var(--color-primary);
    font-weight: 600;
}