/* 基础样式和变量 */
:root {
    --primary: #5580c2;
    --secondary: #3a6ab7;
    --accent: #6ba1e6;
    --orange: #ff914d;
    --light: #f8f9fa;
    --light-blue: #e8f1ff;
    --medium-blue: #c5d9ff;
    --dark-blue: #2c4a7a;
    --dark: #212529;
    --gray: #6c757d;
    --success: #28a745;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--white);
    font-weight: 400;
    overflow-x: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

.blue {
    color: var(--primary);
}
    
.bold {
    font-weight: bold;
}

.view-all-container {
    margin-top: 60px;
    text-align: center;
    margin-bottom: 60px;
}

.view-all-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--primary);
    color: white;
    padding: 15px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    font-size: 1.5rem;
}

.view-all-button:hover {
    background: var(--secondary);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
    gap: 15px;
}

a {text-decoration: none;}

.ql-align-center {
    margin: 0 auto;
    text-align: center;
}

.ql-align-right {
    text-align: right;
}

.ql-align-justify {
    text-align: justify;
}

.ql-size-small {
    font-size: 0.75em;
}

.ql-size-large {
    font-size: 1.5em;
}

.ql-size-huge {
    font-size: 2.5em;
}

.container {
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
    max-width: 1400px;
}

/* 视频弹层样式 - 修正版 */
.video-popup-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    overflow-y: auto;
}

.video-popup-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 1000px;
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    max-height: 90vh;
    overflow-y: auto;
}

.video-popup-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.video-popup-close:hover {
    background: var(--primary);
    transform: scale(1.1);
}

.video-container {
    width: 100%;
}

.video-container video {
    width: 100%;
    height: 500px;
    background: #000;
    display: block;
    object-fit: cover;
}

.video-info-popup {
    padding: 25px;
    background: white;
}

.video-info-popup h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #333;
}

.video-info-popup p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--primary);
    color: var(--white);
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn:hover {
    background-color: var(--secondary);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background-color: var(--primary);
    color: var(--white);
}

/* 漂浮按钮组 */
.floating-buttons {
    position: fixed;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
}

.quick-buttons {
    display: flex;
    flex-direction: column;
    background: white;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    overflow: hidden;
}

.quick-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    min-width: 80px;
}

.quick-btn:first-child {
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.register-btn {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.top-btn {
    background: white;
    color: #666;
}

.btn-icon {
    margin-bottom: 8px;
    transition: transform 0.3s ease;
}

.btn-icon .iconfont {
    font-size: 1.6rem;
    display: block;
}

.btn-text {
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
}

/* 悬停效果 */
.quick-btn:hover {
    transform: translateY(-2px);
}

.register-btn:hover {
    background: linear-gradient(135deg, var(--secondary), var(--primary));
}

.top-btn:hover {
    background: #f8f9fa;
    color: var(--primary);
}

.quick-btn:hover .btn-icon {
    transform: scale(1.3);
}

/* 微妙的发光效果 */
.quick-buttons::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 18px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.quick-buttons:hover::before {
    opacity: 0.3;
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        opacity: 0.3;
    }
    to {
        opacity: 0.5;
    }
}

/* 头部样式 */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

header.scrolled {
    background-color: rgba(20, 64, 135, 0.9);
    box-shadow: var(--shadow);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
}

.logo {
    width: 220px;
    height: 60px;
    background: url(../images/logo.png) no-repeat center/contain;
    margin-left: 20px;
}

.nav-wrapper {
    display: flex;
    align-items: flex-end;
    flex-direction: column;
    flex-grow: 1;
    justify-content: center;
    margin-right: 150px;
}

nav ul {
    display: flex;
    list-style: none;
    position: relative;
}

nav ul li {
    margin-left: 25px;
    position: relative;
}

nav ul li a {
    text-decoration: none;
    color: var(--white);
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    padding: 15px 0;
    position: relative;
    white-space: nowrap;
    font-size: 1.2rem;
}

.english, .en {
    font-family: 'Aleo';
}

nav ul li a i {
    margin-left: 5px;
    font-size: 0.8rem;
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--medium-blue);
}

nav ul li a.active:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--orange);
}

/* 语言切换按钮 - PC端 */
.language-switcher {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
}

.language-switcher a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.9rem;
}

.language-switcher a.active {
    color: var(--orange);
}

.language-switcher span {
    color: var(--white);
    opacity: 0.7;
}

.language-switcher a:hover {
    color: var(--orange);
}

/* 二级菜单样式 */
.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--white);
    min-width: 220px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    border-radius: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 100;
    padding: 10px 0;
    display: block;
}

.submenu:before {
    content: '';
    position: absolute;
    top: -8px;
    left: 20px;
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid var(--white);
}

.submenu li {
    margin: 0;
    width: 100%;
    position: relative;
}

.submenu li a {
    padding: 12px 20px;
    display: block;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    color: var(--dark);
    transition: var(--transition);
    justify-content: space-between;
    font-size: 1rem;
}

.submenu li a:hover {
    background-color: var(--light-blue);
    color: var(--primary);
    padding-left: 25px;
}

.submenu li:last-child a {
    border-bottom: none;
}

nav ul li:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 三级菜单样式 - 竖着放 */
.third-menu {
    position: absolute;
    top: 0;
    left: 100%;
    background-color: var(--white);
    min-width: 280px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    border-radius: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: var(--transition);
    z-index: 101;
    padding: 10px 0;
    overflow-y: auto;
    flex-direction: column;
}

.third-menu:before {
    content: '';
    position: absolute;
    top: 15px;
    left: -8px;
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-right: 8px solid var(--white);
}

.submenu li:hover .third-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.third-menu li {
    margin: 0;
    width: 100%;
}

.third-menu li a {
    padding: 10px 20px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    color: var(--dark);
    transition: var(--transition);
    font-size: 0.95rem;
    justify-content: space-between;
}

.third-menu li a:hover {
    background-color: var(--light-blue);
    color: var(--primary);
    padding-left: 25px;
}

.third-menu li.more-link {
    margin-top: 5px;
}

.third-menu li.more-link a {
    color: var(--primary);
    font-weight: 600;
    justify-content: flex-end;
    padding-right: 20px;
}



.mobile-menu {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    margin-left: 20px;
    color: var(--white);
}

/* 移动端菜单样式 */
.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--white);
    z-index: 9999;
    transform: translateX(-100%);
    transition: var(--transition);
    overflow-y: auto;
    padding: 20px;
}

.mobile-nav.active {
    transform: translateX(0);
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--light);
}

.mobile-logo {
    width: 140px;
    height: 40px;
    background: url(../images/logo_m.png) no-repeat center/contain;
}

.close-menu {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: var(--transition);
}

.close-menu:hover {
    background-color: var(--light-blue);
}

.mobile-nav ul {
    list-style: none;
}

.mobile-nav ul li {
    margin-bottom: 10px;
}

.mobile-nav ul li a {
    display: block;
    padding: 15px;
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    border-bottom: 1px solid var(--light);
    transition: var(--transition);
}

.mobile-nav ul li a:hover {
    background-color: var(--light-blue);
    color: var(--primary);
}

.mobile-submenu {
    margin-left: 20px;
    display: none;
}

.mobile-submenu.active {
    display: block;
}

.mobile-third-menu {
    margin-left: 20px;
    display: none;
}

.mobile-third-menu.active {
    display: block;
}

/* 移动端语言切换 */
.mobile-language-switcher {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 30px 0 0 15px;
    padding: 15px;
    border-top: 1px solid var(--light);
}

.mobile-language-switcher a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.9rem;
}

.mobile-language-switcher a.active {
    color: var(--secondary);
    font-weight: 600;
}

.mobile-language-switcher span {
    color: var(--gray);
    opacity: 0.7;
}

.mobile-language-switcher a:hover {
    color: var(--secondary);
}

/* 英雄区域 */
.hero {
    position: relative;
    color: var(--white);
    padding: 120px 0;
    text-align: center;
    overflow: hidden;
    height: 80vh;
    display: flex;
    align-items: center;
}

.video-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(20, 64, 135, 0.8), rgba(25, 53, 97, 0.3));
    z-index: -1;
}

.mr20 {margin-right: 20px;}
.ml20 {margin-left: 20px;}
.mr5 {margin-right: 5px;}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

 .hero .subtitle {
    font-size: 2.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 500;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
    margin-bottom: 60px;
}
.hero .subtitle span {
    border-top: 1px solid #fff;
    border-bottom: 1px solid #fff;
    padding: 15px 0;
}

.hero .sub {
    font-size: 2rem;
    margin-top: 20px;
}
.hero .sub2 {
    font-size: 1.5rem;
}
.hero .dates {
    font-size: 1.2rem;
    margin-bottom: 30px;
    font-weight: 500;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
}

/* 部分通用样式 */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2.2rem;
    color: var(--primary);
    position: relative;
    font-weight: 600;
}

.section-title:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: var(--accent);
    margin: 15px auto;
}

/* 参与方式部分 */
.ways-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
}

.way-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
    cursor: pointer;
}

.way-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.way-image {
    height: 220px;
    overflow: hidden;
}

.way-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.way-card:hover .way-image img {
    transform: scale(1.2);
}

.way-card h3 {
    color: var(--primary);
    font-size: 1.5rem;
    margin: 15px 20px 15px;
    font-weight: 700;
}

.way-card p {
    color: var(--gray);
    line-height: 1.6;
    margin: 0 20px 25px;
    font-size: 0.95rem;
}

/* 统计数据部分 */
.stats {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary) 100%);
    color: var(--white);
    padding: 100px 0;
    position: relative;
}

.stats:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/pic_05.jpg') center/cover no-repeat;
    opacity: 0.4;
}

.stats .section-title {
    color: var(--white);
}

.stats .section-title:after {
    background-color: var(--orange);
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    text-align: center;
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
}

.stat-item {
    padding: 40px 20px;
    border-radius: 12px;
    transition: var(--transition);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    background: rgba(255, 255, 255, 1);
    backdrop-filter: blur(10px);
}

.stat-item:hover {
    transform: translateY(-10px);
}

.stat-number {
    font-size: 4rem;
    font-weight: 700;
    font-family: 'Aleo';
    color: var(--orange);
    display: inline-block;
    min-width: 120px;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.2);
    letter-spacing: 2px;
}

.stat-number[data-plus="true"]::after {
    content: "+";
    font-size: 2rem;
    font-weight: 600;
    color: inherit;
    margin-left: 2px;
    position: relative;
    top: 0;
    left: 5px;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--gray);
    font-weight: 500;
}

/* 嘉宾板块 */
.speakers {
    background-color: var(--light);
}

.speakers-container {
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px 0 80px;
}

.speakers-container .swiper {
    width: 100%;
    height: 100%;
    padding: 20px 10px 80px;
}

.swiper-slide {
    text-align: center;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    height: auto;
}

.swiper-slide:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.speaker-card {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.speaker-image {
    position: relative;
    overflow: hidden;
}

.speaker-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: all 0.6s ease;
}

/* 阿里图标相机对焦效果 */
.speaker-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: all 0.5s ease;
    z-index: 2;
    pointer-events: none;
}

/* 阿里图标容器 */
.speaker-focus-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    z-index: 3;
    pointer-events: none;
    opacity: 0;
}

.speaker-focus-icon i {
    font-size: 0;
    color: var(--accent);
}

/* 光圈效果 */
.speaker-focus-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.5s ease;
    opacity: 0;
}

/* 鼠标悬停时的动画效果 */
.speaker-card:hover::before {
    opacity: 1;
}

.speaker-card:hover .speaker-focus-icon {
    opacity: 1;
    animation: iconAppear 0.4s ease-out forwards;
}

.speaker-card:hover .speaker-focus-icon i {
    font-size: 48px;
    animation: iconRotate 2s linear infinite;
}

.speaker-card:hover .speaker-focus-icon::before {
    width: 80px;
    height: 80px;
    opacity: 1;
    animation: guangquan 1.5s ease-in-out infinite alternate;
}

.speaker-card:hover .speaker-image img {
    transform: scale(1.2);
    filter: brightness(1.1) contrast(1.05);
}

/* 图标出现动画 */
@keyframes iconAppear {
    0% {
        transform: translate(-50%, -50%) scale(.5) rotate(-180deg);
        opacity: 0;
    }
    100% {
        transform: translate(-50%, -50%) scale(10) rotate(-90deg);
        opacity: 0.8;
    }
}

/* 图标旋转动画 */
@keyframes iconRotate {
    0% {
        transform: rotate(0deg);
    }
    25% {
        transform: rotate(90deg);
    }
    50% {
        transform: rotate(180deg);
    }
    75% {
        transform: rotate(270deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* 光圈呼吸动画 */
@keyframes guangquan {
    0% {
        width: 70px;
        height: 70px;
        border-color: rgba(107, 161, 230, 0.4);
        box-shadow: 0 0 10px rgba(107, 161, 230, 0.3);
    }
    100% {
        width: 90px;
        height: 90px;
        border-color: rgba(107, 161, 230, 0.8);
        box-shadow: 0 0 20px rgba(107, 161, 230, 0.6);
    }
}

/* 添加光晕效果 */
.speaker-card:hover .speaker-image::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100px;
    height: 100px;
    transform: translate(-50%, -50%);
    animation: glowPulse 2s ease-in-out infinite;
    z-index: 1;
}

@keyframes glowPulse {
    0%, 100% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.speaker-card h3 {
    font-size: 1.4rem;
    margin-bottom: 8px;
    color: var(--primary);
    font-weight: 600;
    padding: 0 20px;
}

.speaker-card .position {
    font-size: 1rem;
    color: var(--gray);
    margin-bottom: 15px;
    min-height: 48px;
    display: flex;
    align-items: center;
    padding: 0 20px;
    line-height: 1.4;
    justify-content: center;
}

.speaker-card .company {
    font-size: 0.95rem;
    color: var(--dark);
    font-weight: 500;
    padding: 8px 20px;
    background-color: var(--light-blue);
    border-radius: 20px;
    margin: 0 20px 20px 20px;
}

/* 分页器样式 */
.swiper-pagination {
    bottom: 30px !important;
}

.swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background-color: var(--gray);
    opacity: 0.5;
    transition: var(--transition);
}

.swiper-pagination-bullet-active {
    background-color: var(--primary);
    opacity: 1;
    transform: scale(1.2);
}

/* 新闻公告部分 */
.news-container {
    max-width: 1400px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    display: grid;
    grid-template-columns: 300px 1fr;
    min-height: 400px;
}

.news-sidebar {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    padding: 40px 30px;
    color: var(--white);
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.news-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    text-align: center;
}

.news-sidebar h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    font-weight: 700;
    text-align: center;
    position: relative;
    z-index: 2;
}

.news-sidebar p {
    font-size: 1rem;
    opacity: 0.9;
    text-align: center;
    line-height: 1.6;
    position: relative;
    z-index: 2;
}

.news-content {
    padding: 0;
}

.news-header {
    background: var(--light-blue);
    padding: 25px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--medium-blue);
}

.news-tabs {
    display: flex;
    gap: 15px;
}

.news-tab {
    background: none;
    border: none;
    padding: 8px 16px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--gray);
    cursor: pointer;
    border-radius: 20px;
    transition: all 0.3s ease;
    position: relative;
    border: 2px solid transparent;
}

.news-tab:hover {
    color: var(--primary);
    background-color: rgba(107, 161, 230, 0.1);
    border-color: var(--light-blue);
}

.news-tab.active {
    color: var(--white);
    background-color: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(85, 128, 194, 0.3);
}

.news-tab.active:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background-color: var(--primary);
    border-radius: 50%;
}

.news-more {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.news-more:hover {
    color: var(--secondary);
    transform: translateX(5px);
}

.no-news {
    text-align: center;
    padding: 50px 20px;
    color: var(--gray);
}

.no-news i {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--light-blue);
}

.no-news p {
    font-size: 1.2rem;
    margin: 0;
}

.news-list {
    padding: 0;
    min-height: 300px;
}

.news-item {
    display: flex;
    align-items: center;
    padding: 25px 40px;
    border-bottom: 1px solid var(--light);
    transition: var(--transition);
    gap: 20px;
    cursor: pointer;
}

.news-item:last-child {
    border-bottom: none;
}

.news-item:hover {
    background: linear-gradient(to right, var(--light-blue) 0%, transparent 100%);
    transform: translateX(10px);
}

.news-item-icon {
    width: 50px;
    height: 50px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.news-item-icon i {
    color: var(--white);
    font-size: 1.2rem;
}

.news-content-main {
    flex: 1;
}

.news-title {
    font-size: 1.1rem;
    color: var(--dark);
    font-weight: 500;
    margin-bottom: 5px;
    line-height: 1.4;
}

.news-date {
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 600;
}

/* 视频专区 */
.videos-section {
    background-color: var(--light-blue);
}

.videos-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
}

.video-card {
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    border: 3px solid var(--medium-blue);
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    border-color: var(--primary);
}

.video-thumbnail {
    height: 240px;
    background: var(--dark-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.video-thumbnail i {
    font-size: 2.2rem;
    color: var(--white);
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.video-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.video-info {
    padding: 25px;
}

.video-title {
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 12px;
    font-weight: 600;
}

.video-desc {
    color: var(--gray);
    font-size: 1rem;
    line-height: 1.5;
}

/* 历史足迹 */
.history-section {
    background: var(--light);
    text-align: center;
}

.history-image {
    max-width: 1400px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
}
.history-image video {
    width: 100%;
    height: auto;
    display: block;
}
    
.history-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* 合作方logo滚动 */
.partners-section {
    background-color: var(--white);
    padding: 60px 0;
}

.partners-scroll {
    width: 100%;
    overflow: hidden;
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
}

.partners-track {
    display: flex;
    animation: scroll 30s linear infinite;
    /* 添加暂停属性 */
    animation-play-state: running;
    justify-content: space-around;
}

/* 鼠标悬停时暂停动画 */
.partners-track:hover {
    animation-play-state: paused;
}
.partner-logo {
    flex: 0 0 auto;
    width: 280px;
    height: 120px;
    margin: 0 20px;
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    /* 添加过渡效果，让悬停更平滑 */
    transition: transform 0.3s ease, border-color 0.3s ease;
}
/* 鼠标悬停在单个logo上的效果 */
.partner-logo:hover {
    transform: scale(1.05);
    z-index: 1;
    position: relative;
}

.partner-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    text-decoration: none;
    /* 添加图片过渡效果 */
    transition: transform 0.3s ease;
}

.partner-logo:hover img {
    transform: scale(1.1);
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
/* 底部板块 */
.footer-main {
    background: var(--dark-blue);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-container {
    display: grid;
    grid-template-columns: 20% 80%;
    gap: 60px;
    margin-bottom: 40px;
    max-width: 1400px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    width: 220px;
    height: 60px;
    background: url(../images/logo.png) no-repeat center/contain;
    margin-bottom: 20px;
}

.footer-desc {
    color: #ccc;
    line-height: 1.6;
    margin-bottom: 25px;
    font-size: 1rem;
}

.footer-contact {
    color: #ccc;
}

.footer-contact p {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    font-size: 1rem;
}

.footer-contact i {
    margin-right: 12px;
    color: var(--accent);
    font-size: 1.1rem;
}

.footer-nav-container {
    display: flex;
    flex-direction: column;
}

.footer-nav-primary {
    display: flex;
    gap:32px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.footer-nav-group {
    display: flex;
    flex-direction: column;
    min-width: 120px;
}

.footer-nav-main {
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    padding: 8px 0;
    display: block;
    margin-bottom: 15px;
    border-bottom: 2px solid transparent;
}

.footer-nav-main:hover {
    color: var(--accent);
}

.footer-nav-secondary {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.footer-nav-secondary li {
    list-style: none;
}
.footer-nav-secondary a {
    color: #ccc;
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
    padding: 4px 0;
}

.footer-nav-secondary a:hover {
    color: var(--accent);
    /* padding-left: 8px; */
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #aaa;
    font-size: 0.9rem;
    max-width: 1400px;
    margin: 0 auto;
}

/* 弹层广告 */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 20px;
}

.popup-content {
    background: var(--white);
    border-radius: 12px;
    padding: 0;
    width: 768px;
    max-width: 90vw;
    height: 480px;
    max-height: calc(90vw * 0.625);
    text-align: center;
    position: relative;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    overflow: hidden;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.popup-close {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--white);
    z-index: 10;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0,0,0,0.5);
    transition: var(--transition);
}

.popup-close:hover {
    background: rgba(0,0,0,0.7);
    transform: scale(1.1);
}

.popup-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
    font-weight: bold;
}
.popup-image img {
    width: 100%;
    height: 100%;
    display: block;
}
.popup-image a {
    display: block;
    width: 100%;
    height: 100%;
}

.index-image {
    max-width: 900px;
    margin-bottom: 30px;
}

.section-header {
    margin-bottom: 60px;
}

.section-header.center {
    text-align: center;
}

.section-header h2 {
    font-size: 2.5rem;
    color:var(--primary);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 20px;
}

.divider {
    width: 80px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    margin: 0 auto;
}

.section-header:not(.center) .divider {
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .ways-container,
    .videos-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-container {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .news-container {
        grid-template-columns: 250px 1fr;
    }
    
    .footer-nav-primary {
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .section-header h2 {
        font-size: 1.8rem;
    }
    .section-header p {
        font-size: 1rem;
    }
    .index-image {
        max-width: 100%;
        margin-bottom: 30px;
    }
    .floating-buttons {
        right: 20px;
    }
    
    .quick-btn {
        padding: 16px 12px;
        min-width: 70px;
    }
    
    .btn-icon .iconfont {
        font-size: 1.4rem;
    }
    
    .btn-text {
        font-size: 0.8rem;
    }
    .mobile-menu {
        display: flex;
        width: 2rem;
        height: 2rem;
        align-items: center;
        justify-content: center;
        margin-right: .5rem
    }
    .language-switcher {
        display: none !important;
    }

    nav {
        display: none;
    }

    /* 移动端logo调整 */
    .logo {
        width: 140px;
        height: 40px;
        margin-right: 20px;
    }

    .hero {
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .section-title {
        font-size: 1.8rem;
    }
    
    .ways-container,
    .videos-container {
        grid-template-columns: 1fr;
    }
    
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-container {
        grid-template-columns: 1fr;
    }
    
    .news-sidebar {
        padding: 30px 20px;
        text-align: center;
    }
    
    .news-icon {
        font-size: 3rem;
    }
    
    .news-sidebar h3 {
        font-size: 1.5rem;
    }
    
    .news-header {
        padding: 20px;
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }
    
    .news-tabs {
        width: 100%;
        overflow-x: auto;
        gap: 10px;
        padding-bottom: 5px;
    }
    
    .news-tab {
        padding: 6px 12px;
        font-size: 0.9rem;
        flex-shrink: 0;
        border-width: 1px;
    }
    
    .news-tab.active {
        box-shadow: 0 2px 8px rgba(85, 128, 194, 0.3);
    }
    
    .news-more {
        align-self: flex-end;
    }
    
    .no-news {
        padding: 30px 15px;
    }
    
    .no-news i {
        font-size: 2rem;
        margin-bottom: 15px;
    }
    
    .no-news p {
        font-size: 1rem;
    }
    
    .footer-nav-primary {
        flex-direction: column;
        gap: 25px;
    }
    
    .footer-nav-group {
        border-bottom: 1px solid rgba(255,255,255,0.1);
        padding-bottom: 20px;
    }
    
    .footer-nav-group:last-child {
        border-bottom: none;
    }
    
    /* 移动端弹层广告调整 */
    .popup-overlay {
        display: none;
        align-items: center;
        justify-content: center;
        padding: 20px;
    }
    
    .popup-content {
        width: 90vw;
        height: calc(90vw * 0.625);
        max-height: 80vh;
        position: relative;
        margin: auto;
    }
    
    .popup-image {
        font-size: 1.5rem;
    }    
    
    /* 移动端关闭按钮调整 */
    .popup-close {
        top: 10px;
        right: 10px;
        width: 35px;
        height: 35px;
        font-size: 1.5rem;
        background: rgba(0,0,0,0.6);
    }
    
    /* 移动端隐藏导航按钮 */
    .swiper-button-next,
    .swiper-button-prev {
        display: none;
    }
    
    .speaker-card:hover::before {
        opacity: 0 !important;
    }
    
    .speaker-card:hover .speaker-focus-icon {
        opacity: 0 !important;
        animation: none !important;
    }
    
    .speaker-card:hover .speaker-focus-icon i {
        font-size: 0 !important;
        animation: none !important;
    }
    
    .speaker-card:hover .speaker-focus-icon::before {
        width: 0 !important;
        height: 0 !important;
        opacity: 0 !important;
        animation: none !important;
    }
    
    .speaker-card:hover .speaker-image img {
        transform: scale(1) !important;
        filter: none !important;
    }
    
    .speaker-card:hover .speaker-image::after {
        display: none !important;
        animation: none !important;
    }
    
    /* 确保触摸设备没有悬停效果 */
    .speaker-card:active .speaker-image img {
        transform: scale(1) !important;
    }
}

@media (max-width: 576px) {
    .floating-buttons {
        right: 5px;
    }
    
    .quick-buttons {
        border-radius: 12px;
    }
    
    .quick-btn {
        padding: 14px 10px;
        min-width: 60px;
    }
    
    .btn-icon .iconfont {
        font-size: 1.3rem;
    }
    
    .btn-text {
        font-size: 0.75rem;
    }
    .hero h1 {
        font-size: 2rem;
    }

    .stats-container {
        grid-template-columns: 1fr;
    }
    
    .partner-logo {
        width: 150px;
        margin: 0 20px;
    }
    
    .way-image {
        height: 260px;
    }
    
    /* 移动端弹层广告进一步调整 */
    .popup-overlay {
        padding: 15px;
    }
    
    .popup-content {
        width: 95vw;
        height: calc(95vw * 0.625);
        max-height: 75vh;
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
    }
    
    .popup-image {
        font-size: 1.2rem;
    }
    
    /* 小屏幕关闭按钮进一步调整 */
    .popup-close {
        top: 8px;
        right: 8px;
        width: 30px;
        height: 30px;
        font-size: 1.2rem;
    }

    .page-container {
        padding-top: 60px !important;
    }
}