/* 全局样式 */
:root {
    --primary-color: #0A2463;
    --accent-color: #D7263D;
    --light-gray: #F5F5F5;
    --dark-gray: #333333;
}

body {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    scroll-behavior: smooth; /* 平滑滚动 */
}

h1, h2, h3, h4, h5, h6 {
    font-family: Georgia, serif;
}

/* 导航栏样式 */
.navbar {
    transition: all 0.3s ease;
    background-color: #FFFFFF !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* Edge 浏览器兼容性修复 */
.navbar-nav {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: wrap;
    list-style: none !important;
    margin: 0 !important;
    padding: 0 !important;
}

.navbar-nav li {
    list-style: none !important;
}

.nav-item {
    list-style: none !important;
    display: inline-flex !important;
    align-items: center;
}

/* 强制移除所有列表样式 */
nav ul,
nav ol,
.navbar ul,
.navbar ol,
.navbar-nav ul,
.navbar-nav ol {
    list-style: none !important;
    list-style-type: none !important;
}

nav li,
.navbar li,
.nav-item li {
    list-style: none !important;
    list-style-type: none !important;
}

.navbar-brand {
    font-weight: bold;
    color: var(--primary-color) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.nav-link {
    color: var(--primary-color) !important;
    margin-right: 1rem;
    position: relative;
    font-weight: 500;
    font-size: 1.05rem;
}

.nav-item.dropdown .nav-link::after {
    display: none; /* 下拉菜单不显示下划线 */
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

.nav-item.dropdown .nav-link::after {
    display: none; /* 下拉菜单不显示下划线 */
}

.nav-link:hover::after {
    width: 100%;
}

/* 下拉菜单样式 */
.dropdown-menu {
    background-color: #FFFFFF !important;
    border: 1px solid #e9ecef;
    border-radius: 0.375rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    margin-top: 0.25rem; /* 添加小间距，但不要太大 */
    min-width: 200px;
    padding: 0.5rem 0;
    position: absolute;
    top: 100%;
    left: 0;
    display: none; /* 默认隐藏 */
    z-index: 1000;
    list-style: none !important;
}

.dropdown-menu li {
    list-style: none !important;
    display: block !important;
}

.dropdown-menu.show {
    display: block; /* 显示时才显示 */
}

.dropdown-item {
    color: #333333 !important;
    padding: 0.75rem 1.5rem !important;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    display: block;
    width: 100%;
    text-align: left;
    border: none;
    background: none !important;
    text-decoration: none;
    line-height: 1.5;
}

.dropdown-item:hover,
.dropdown-item:focus {
    background-color: var(--light-gray) !important;
    color: var(--primary-color) !important;
}

.dropdown-divider {
    height: 1px;
    margin: 0.5rem 0;
    overflow: hidden;
    border-top: 1px solid #e9ecef;
}

.nav-item.dropdown {
    position: relative;
    z-index: 100;
}

.nav-item.dropdown .nav-link {
    cursor: pointer;
    color: var(--primary-color) !important;
    display: inline-block;
    background: transparent !important;
    position: relative;
}

.nav-item.dropdown:hover .nav-link {
    color: var(--accent-color) !important;
}

/* 添加悬停背景效果 */
.nav-item.dropdown:hover {
    background-color: rgba(10, 36, 99, 0.05);
    border-radius: 0.375rem;
}

.nav-item.dropdown:hover .nav-link {
    color: var(--primary-color) !important;
}

.nav-item.dropdown .nav-link.active {
    color: var(--primary-color) !important;
}

.nav-item.dropdown .nav-link.dropdown-toggle {
    position: relative;
    padding-left: 1.2rem !important;
}

.nav-item.dropdown .nav-link.dropdown-toggle::before {
    content: '▼';
    font-family: Arial, sans-serif;
    font-size: 0.9rem;
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-color);
    margin-right: 0.5rem;
    transition: transform 0.3s ease, color 0.3s ease;
    font-weight: bold;
}

.nav-item.dropdown:hover .nav-link.dropdown-toggle::before {
    transform: translateY(-50%) rotate(180deg);
    color: var(--accent-color);
}

.btn-register {
    background-color: var(--accent-color);
    color: #FFFFFF !important;
    border-radius: 0.375rem;
    padding: 0.5rem 1.5rem;
    transition: all 0.3s ease;
}

.btn-register:hover {
    background-color: #b91f36;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* 首屏英雄区 */
.hero-section {
    position: relative;
    overflow: hidden;
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

/* 首页英雄区高度 */
.hero-section.home-hero {
    height: 53vh;
}

/* 内页英雄区高度 */
.hero-section.page-hero {
    height: 53vh;
}

/* 轮播容器 */
.carousel-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* 轮播图片 */
.carousel-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    background-size: cover;
    background-position: center;
}

.carousel-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(10, 36, 99, 0.7), rgba(10, 36, 99, 0.7));
}

.carousel-item.active {
    opacity: 1;
}

/* 轮播图片背景现在通过 ASP 内联样式动态设置 */

/* 轮播控制按钮 */
.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(255, 255, 255, 0.3);
    color: #FFFFFF;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.5rem;
    transition: all 0.3s ease;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-control span {
    font-size: 2rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-control:hover {
    background-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-50%) scale(1.1);
}

.carousel-control-prev {
    left: 20px;
}

.carousel-control-next {
    right: 20px;
}

/* 轮播指示器 */
.carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 0;
    right: 0;
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: center;
    z-index: 50;
}

.carousel-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
}

.carousel-indicator.active {
    background-color: #FFFFFF;
    transform: scale(1.2);
}

.carousel-indicator:hover {
    background-color: rgba(255, 255, 255, 0.8);
}

.hero-content {
    max-width: 800px;
    padding: 2rem;
}

.hero-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    margin-bottom: 1rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-weight: 700;
    letter-spacing: 0.02em;
}

/* 汉堡菜单动画 */
.navbar-toggler {
    border: none;
    padding: 0.5rem;
    position: relative;
    width: 40px;
    height: 40px;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    background-image: none !important;
    position: relative;
    display: inline-block;
    width: 24px;
    height: 2px;
    background-color: var(--primary-color);
    transition: all 0.3s ease;
}

.navbar-toggler-icon::before,
.navbar-toggler-icon::after {
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background-color: var(--primary-color);
    transition: all 0.3s ease;
}

.navbar-toggler-icon::before {
    top: -7px;
}

.navbar-toggler-icon::after {
    top: 7px;
}

/* 展开时的 X 效果 */
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
    background-color: transparent;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before {
    top: 0;
    transform: rotate(45deg);
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after {
    top: 0;
    transform: rotate(-45deg);
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    margin-bottom: 2rem;
    line-height: 1.4;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-weight: 400;
}

.hero-btn {
    margin: 0 0.5rem;
    padding: 0.75rem 2rem;
    border-radius: 0.375rem;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary-hero {
    background-color: var(--accent-color);
    color: #FFFFFF;
    border: none;
}

.btn-primary-hero:hover {
    background-color: #b91f36;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.btn-secondary-hero {
    background-color: transparent;
    color: #FFFFFF;
    border: 2px solid #FFFFFF;
}

.btn-secondary-hero:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* About ASGO 版块 */
.about-section {
    padding: 3rem 0 2rem 0;
    background-color: #FFFFFF;
}

.about-title {
    color: var(--primary-color);
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif !important;
}

.about-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: justify;
    height: auto;
    min-height: auto;
    font-size: 1.1rem;
    line-height: 1.5;
}

.about-content p {
    margin-bottom: 0.8rem;
}

.about-subtitle {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-weight: 600;
}

.about-description {
    font-size: 1.1rem;
    color: var(--dark-gray);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-description strong {
    color: var(--primary-color);
}

/* Welcome Message 版块 */
.welcome-section {
    padding: 3rem 0;
    background-color: var(--light-gray);
}

.welcome-title {
    color: var(--primary-color);
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif !important;
}

.welcome-card {
    background-color: #FFFFFF;
    border-radius: 0.5rem;
    padding: 2rem;
    height: 100%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.welcome-card:hover {
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.welcome-card h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1.2rem;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif !important;
    font-weight: 600;
    text-align: center;
}

.welcome-body {
    flex: 1;
}

.welcome-body p {
    color: var(--dark-gray);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 0.8rem;
}

.welcome-img {
    float: right;
    width: 120px;
    height: 150px;
    border-radius: 0.375rem;
    margin: 0 0 1rem 1rem;
    object-fit: cover;
}

.welcome-more {
    display: block;
    text-align: right;
    color: var(--accent-color);
    font-weight: 600;
    text-decoration: none;
    margin-top: auto;
    transition: color 0.3s ease;
}

.welcome-more:hover {
    color: var(--primary-color);
}

@media (max-width: 767px) {
    .welcome-img {
        float: none;
        display: block;
        margin: 0 auto 1rem auto;
        width: 150px;
        height: 180px;
    }
}

/* 宣传视频区 */
.video-section {
    padding: 3rem 0;
    text-align: center;
}

.video-title {
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-size: 2.5rem;
}

.video-placeholder {
    position: relative;
    max-width: 800px;
    height: 450px;
    margin: 0 auto;
    background-color: var(--light-gray);
    border-radius: 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--primary-color);
    overflow: hidden;
}

.video-placeholder iframe,
.video-placeholder video,
.video-placeholder embed,
.video-placeholder object {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-play-icon {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

/* 新闻通知区 */
.news-section {
    padding: 5rem 0;
    background-color: var(--light-gray);
}

.news-section .row {
    row-gap: 1.5rem;
}

.news-title {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif !important;
}

.news-card {
    background-color: #FFFFFF;
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    cursor: pointer;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    height: 100%;
    color: inherit;
}

.news-card:hover {
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.news-card:hover .news-heading {
    color: var(--accent-color);
}

.news-date {
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.news-heading {
    color: var(--primary-color);
    margin-bottom: 1rem;
    transition: color 0.3s ease;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.4;
    max-height: 2.8em;
    word-wrap: break-word;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif !important;
}

.news-card p {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.5;
    max-height: 4.5em;
    color: var(--dark-gray);
    word-wrap: break-word;
}

/* 页脚样式 */
footer {
    background-color: var(--dark-gray);
    color: #FFFFFF;
    padding: 3rem 0 1rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: #CCCCCC;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #FFFFFF;
}

.social-icons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-icon {
    font-size: 1.5rem;
    color: #CCCCCC;
    transition: color 0.3s ease;
}

.social-icon:hover {
    color: var(--accent-color);
}

/* 页脚右对齐 */
.ms-auto {
    margin-left: auto;
}

.copyright {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #444444;
    color: #CCCCCC;
}

/* 次级页面通用样式 */
.secondary-page {
    padding: 3rem 0;
}

.breadcrumb {
    margin-bottom: 2rem;
}

.page-title {
    color: var(--primary-color);
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--light-gray);
}

.sidebar-nav {
    background-color: var(--light-gray);
    border-radius: 0.5rem;
    padding: 1.5rem;
}

.sidebar-nav .nav-link {
    color: var(--dark-gray) !important;
    padding: 0.75rem 1rem;
    margin: 0;
    border-radius: 0.375rem;
}

.sidebar-nav .nav-link.active {
    background-color: var(--primary-color);
    color: #FFFFFF !important;
}

.content-area {
    padding: 1.5rem;
}

/* 响应式适配 */
@media (min-width: 1200px) {
    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.3rem;
    }
}

/* 中小屏幕PC端优化 (768px - 1200px) - 缩小菜单项保持一行 */
@media (min-width: 768px) and (max-width: 1200px) {
    .nav-link {
        margin-right: 0.4rem !important;
        font-size: 0.85rem !important;
        padding: 0.3rem 0.6rem !important;
    }

    .btn-register {
        padding: 0.35rem 0.8rem !important;
        font-size: 0.8rem !important;
    }

    .btn-login {
        padding: 0.35rem 0.6rem !important;
        font-size: 0.8rem !important;
    }

    .navbar-brand img {
        height: 32px;
    }

    .nav-item.dropdown .nav-link.dropdown-toggle::before {
        font-size: 0.8rem;
        left: 0.2rem;
    }
}

/* Edge 浏览器桌面端导航栏修复 */
@media (min-width: 768px) {
    /* 隐藏汉堡菜单按钮 */
    .navbar-toggler {
        display: none !important;
    }

    /* 强制导航菜单一行显示，禁止换行 */
    .navbar-nav {
        flex-wrap: nowrap !important;
    }
    /* 隐藏汉堡菜单按钮 */
    .navbar-toggler {
        display: none !important;
    }

    .navbar-collapse {
        display: flex !important;
        flex-basis: auto !important;
    }

    .navbar-nav {
        flex-direction: row !important;
        display: flex !important;
    }

    .nav-item {
        display: inline-flex !important;
    }

    .dropdown-menu {
        position: absolute !important;
    }
}

@media (max-width: 767px) {
    .bento-title, .video-title, .news-title {
        font-size: 2rem;
    }

    /* 移动端显示汉堡菜单按钮 */
    .navbar-toggler {
        display: block !important;
    }

    /* 移动端导航菜单 - 浮层形式 */
    .navbar-collapse {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: #FFFFFF;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        padding: 1rem;
        z-index: 1000;
        display: none !important;
    }

    .navbar-collapse.show {
        display: block !important;
    }

    .navbar-nav {
        flex-direction: column !important;
    }

    .nav-item {
        display: block !important;
        width: 100%;
    }

    .dropdown-menu {
        position: static;
        box-shadow: none;
        background-color: #f8f9fa;
        padding: 0;
        border: none;
        border-radius: 0;
    }

    .dropdown-item {
        color: var(--primary-color) !important;
        padding: 0.75rem 1.5rem !important;
        background-color: transparent !important;
    }

    .dropdown-item:hover,
    .dropdown-item:focus {
        background-color: transparent !important;
    }

    .dropdown-divider {
        display: none;
    }

    /* 移动端下拉指示器 */
    .nav-item.dropdown .nav-link.dropdown-toggle::before {
        font-size: 1rem;
        left: 0.3rem;
    }
}

@media (max-width: 767px) {
    .hero-section.home-hero,
    .hero-section.page-hero {
        min-height: 60vh;
        height: auto;
        padding: 5rem 0;
    }

    .carousel-container {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
    }

    .carousel-item {
        background-size: cover;
        background-position: center center;
    }

    .hero-title {
        font-size: 1.5rem;
        white-space: normal;
        overflow: visible;
        text-overflow: clip;
        line-height: 1.3;
    }

    .hero-btn {
        display: block;
        margin: 0.75rem auto;
        width: 80%;
        max-width: 250px;
    }

    .video-placeholder {
        height: 300px;
    }

    .sidebar-nav {
        margin-bottom: 2rem;
    }
}

/* Page List Styles - 多条内容列表样式 */
.page-list-section {
    width: 100%;
    padding: 20px 0;
}

.page-list-container {
    max-width: 900px;
    margin: 0 auto;
}

.page-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.page-list-item {
    background: #ffffff;
    border-radius: 8px;
    border: 1px solid #e8e8e8;
    overflow: hidden;
    transition: all 0.3s ease;
}

.page-list-item:hover {
    border-color: #4A5D4E;
    box-shadow: 0 4px 12px rgba(74, 93, 78, 0.15);
    transform: translateY(-2px);
}

.page-list-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    text-decoration: none;
    color: #333;
}

.page-list-title {
    font-size: 16px;
    font-weight: 500;
    color: #333;
    transition: color 0.3s ease;
}

.page-list-item:hover .page-list-title {
    color: #4A5D4E;
}

.page-list-arrow {
    font-size: 18px;
    color: #999;
    transition: all 0.3s ease;
}

.page-list-item:hover .page-list-arrow {
    color: #D4AF37;
    transform: translateX(5px);
}

@media (max-width: 768px) {
    .page-list-link {
        padding: 15px 18px;
    }

    .page-list-title {
        font-size: 15px;
    }
}