/* 使用系统字体，避免外部网络请求，首屏快 3~10 倍 */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}

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

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #3b82f6, #06b6d4);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #2563eb, #0891b2);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: #00217c url('../images/shouyedatu.jpg') center top no-repeat;
    background-size: cover;
    background-attachment: fixed;
    color: #333;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* 页面加载动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Toast 通知样式 */
.toast-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #4CAF50;
    color: white;
    padding: 12px 24px;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    z-index: 9999;
    animation: slideIn 0.3s ease;
}
.toast-notification.toast-hide {
    animation: slideOut 0.3s ease forwards;
}
@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}
@keyframes slideOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

#app {
    width: 100%;
    min-height: 100vh;
    animation: fadeIn 0.6s ease-out;
}

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

ul {
    list-style: none;
}

/* ========== 创意城市Logo区域 ========== */

.logo-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 280px;
    gap: 20px;
}

.logo-icon svg {
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
}

.logo-text-group {
    text-align: center;
}

.logo-main-title {
    font-size: 42px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 5px;
    letter-spacing: 2px;
}

.logo-subtitle {
    font-size: 16px;
    color: #ffffff;
    margin-bottom: 3px;
    letter-spacing: 1px;
}

.logo-subtitle-en {
    font-size: 14px;
    color: #ffffff;
    letter-spacing: 2px;
    font-weight: 500;
}

/* ========== 右侧隐藏式导航栏 ========== */
.right-sidebar {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
    display: flex;
    align-items: center;
}

.right-sidebar .sidebar-trigger {
    position: relative;
    width: 6px;
    height: 200px;
    background: linear-gradient(180deg, transparent, #3b82f6, transparent);
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

.right-sidebar:hover .sidebar-trigger {
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.8);
}

.right-sidebar .sidebar-menu {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%) translateX(100%);
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    padding: 25px 20px;
    border-radius: 12px 0 0 12px;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    min-width: 180px;
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-right: none;
}

.right-sidebar:hover .sidebar-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(0);
}

.right-sidebar .menu-item {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.85);
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-align: right;
}

.right-sidebar .menu-item:last-child {
    border-bottom: none;
}

.right-sidebar .menu-item:hover {
    color: #60a5fa;
    padding-right: 8px;
}

/* ========== 头部导航 ========== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #00217c 0%, #001a5e 100%);
    box-shadow: 0 2px 10px rgba(0, 33, 124, 0.5);
    z-index: 1000;
    height: 64px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 50px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.logo-img {
    height: 36px;
    width: auto;
}

.logo-text {
    display: flex;
    flex-direction: column;
    gap: 3px;
    border-left: 1px solid rgba(255, 255, 255, 0.2);
    padding-left: 12px;
}

.logo-title {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 10px;
    color: rgba(255, 255, 255, 0.7);
    flex-wrap: wrap;
}

.en-title {
    font-weight: 400;
    font-size: 9px;
    letter-spacing: 0.5px;
}

.cn-title {
    font-weight: 700;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.95);
    letter-spacing: 1px;
}

.logo-date {
    font-size: 10px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.5;
    background: rgba(255, 255, 255, 0.1);
    padding: 3px 8px;
    border-radius: 3px;
    width: fit-content;
    letter-spacing: 0.5px;
    backdrop-filter: blur(5px);
}

.main-nav ul {
    display: flex;
    gap: 45px;
    margin: 0 auto;
}

.main-nav ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s;
    letter-spacing: 0.5px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-nav ul li a:hover,
.main-nav ul li a.active {
    color: #ffffff;
}

.main-nav ul li a.active::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #06b6d4);
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

/* 下拉菜单 */
.nav-dropdown {
    position: relative;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: #1e293b;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    padding: 8px 0;
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1001;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.dropdown-menu a {
    display: block;
    padding: 10px 20px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.2s;
    white-space: nowrap;
}

.dropdown-menu a:hover {
    background: linear-gradient(135deg, #3b82f6, #06b6d4);
    color: #fff;
}

.header-tools {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* 头部阅读人数统计 */
.header-reader-count {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.header-reader-count .reader-icon {
    font-size: 16px;
    filter: grayscale(100%) brightness(1.2);
}

.header-reader-count .reader-number {
    font-size: 16px;
    font-weight: 700;
    color: #ffffff !important;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
}

.search-box {
    position: relative;
}

.search-box input {
    padding: 6px 30px 6px 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    font-size: 12px;
    width: 70px;
    transition: all 0.3s;
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.9);
}

.search-box input:focus {
    outline: none;
    border-color: #3b82f6;
    width: 100px;
    background: rgba(255, 255, 255, 0.1);
}

.search-icon {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.lang-btn {
    padding: 5px 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.8);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s;
    backdrop-filter: blur(5px);
}

.lang-btn:hover {
    border-color: #3b82f6;
    color: #60a5fa;
    transform: scale(1.05);
    background: rgba(255, 255, 255, 0.1);
}

.lang-btn:active {
    transform: scale(0.95);
}

/* ========== Hero Banner ========== */
.hero-banner {
    position: relative;
    height: 560px;
    overflow: hidden;
}

.banner-slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
    pointer-events: none;
}

.banner-slide.active {
    opacity: 1;
    pointer-events: auto;
    position: relative;
}

.banner-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.4);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    z-index: 20;
    transition: background 0.3s, transform 0.3s;
    user-select: none;
}

.banner-arrow:hover {
    background: rgba(0, 0, 0, 0.7);
}

.banner-arrow-prev { left: 24px; }
.banner-arrow-next { right: 24px; }

.banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.4) 50%, rgba(0, 0, 0, 0.5) 100%);
}

.banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    z-index: 10;
}

.banner-title {
    font-size: 50px;
    font-weight: 700;
    margin-bottom: 28px;
    text-shadow: 0 2px 25px rgba(0, 0, 0, 0.65);
    letter-spacing: 4px;
}

.play-btn {
    width: 80px;
    height: 80px;
    border: 3px solid rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    cursor: pointer;
    transition: all 0.3s;
}

.play-btn:hover {
    transform: scale(1.1);
    border-color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.play-icon {
    font-size: 40px;
    color: #fff;
    margin-left: 4px;
}

.banner-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s;
}

.indicator.active {
    background: #fff;
    width: 30px;
    border-radius: 6px;
}

/* 浮动按钮 */
.float-btn {
    position: absolute;
    right: 40px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 20;
    cursor: pointer;
    /* 持续动画改为悬停触发，避免滚动附近持续重绘 */
    transition: box-shadow 0.3s ease;
}

.float-btn:hover {
    box-shadow: 0 6px 30px rgba(52, 211, 153, 0.6);
}

.waic-up {
    width: 140px;
    height: 100px;
    background: linear-gradient(135deg, #34d399, #06b6d4);
    border-radius: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(52, 211, 153, 0.4);
    transition: all 0.3s;
}

.waic-up:hover {
    transform: translateY(-50%) scale(1.05);
}

.btn-text {
    text-align: center;
    color: #fff;
}

.btn-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
}

.btn-subtitle {
    font-size: 12px;
}

/* ========== 星球区域 ========== */
.planet-section {
    position: relative;
    padding: 80px 0;
    background: transparent;
    min-height: 750px;
    overflow: hidden;
}

/* 导航栏内的阅读人数统计 */
.header-reader-count {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 22px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(6, 182, 212, 0.15));
    border: 2px solid rgba(96, 165, 250, 0.4);
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.2);
}

.header-reader-count:hover {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.25), rgba(6, 182, 212, 0.25));
    border-color: rgba(96, 165, 250, 0.6);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.3);
    transform: translateY(-1px);
}

.header-reader-count .reader-icon {
    font-size: 24px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.header-reader-count .reader-number {
    font-size: 18px;
    font-weight: 700;
    background: linear-gradient(135deg, #60a5fa, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: transform 0.3s ease;
    letter-spacing: 0.5px;
}

/* 星球区域的阅读人数统计 */
.reader-stats-planet {
    position: absolute;
    top: 74px;
    right: 40px;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 200;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.reader-stats-planet .reader-icon {
    font-size: 28px;
    animation: pulse 2s ease-in-out infinite;
}

.reader-stats-planet .reader-info {
    text-align: left;
}

.reader-stats-planet .reader-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 3px;
}

.reader-stats-planet .reader-number {
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
    transition: transform 0.3s ease;
}

.planet-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.planet-section::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background:
            radial-gradient(circle at 10% 20%, rgba(255, 255, 255, 0.4) 0%, transparent 20%),
            radial-gradient(circle at 90% 80%, rgba(255, 255, 255, 0.3) 0%, transparent 20%);
    pointer-events: none;
}

.planet-container {
    position: relative;
    width: 1200px;
    height: 700px;
    margin: 0 auto;
}

.planet-center {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

/* 高级数字6样式 */
.six-3d {
    font-size: 340px;
    font-weight: 900;

    /* 白色 */
    color: #ffffff;
    text-shadow: 0 0 40px rgba(255, 255, 255, 0.5),
                 0 0 80px rgba(255, 255, 255, 0.3);

    font-family: -apple-system, BlinkMacSystemFont, "Microsoft YaHei", "PingFang SC", sans-serif;
    line-height: 1;
    position: relative;
    display: inline-block;

    /* 一闪一闪的动画 */
    animation: twinkle 3s ease-in-out infinite;
}

.th-text {
    font-size: 80px;
    font-weight: 600;
    vertical-align: sub;
    margin-left: -15px;
    display: inline-block;
    transform: translateY(-55px);
    color: #ffffff;
    text-shadow: 0 0 40px rgba(255, 255, 255, 0.5),
                 0 0 80px rgba(255, 255, 255, 0.3);
}

@keyframes twinkle {
    0%, 100% {
        opacity: 1;
        text-shadow: 0 0 40px rgba(255, 255, 255, 0.5),
                     0 0 80px rgba(255, 255, 255, 0.3);
    }
    50% {
        opacity: 0.85;
        text-shadow: 0 0 20px rgba(255, 255, 255, 0.3),
                     0 0 40px rgba(255, 255, 255, 0.2);
    }
}



@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.planet-item {
    position: absolute;
    cursor: pointer;
    transition: transform 0.3s;
    z-index: 10;
    /* 初始静态位置 —— 即使 JS 崩溃也能看见 */
}

/* 6 个徽章在 planet-container 中的初始位置（按圆形均匀分布） */
.planet-item.forum-item    { left: 50%; top: 15%; transform: translate(-50%, -50%); }
.planet-item.exhibition-item { left: 78%; top: 32%; transform: translate(-50%, -50%); }
.planet-item.conference-item { left: 78%; top: 68%; transform: translate(-50%, -50%); }
.planet-item.camp-item     { left: 50%; top: 85%; transform: translate(-50%, -50%); }
.planet-item.circle-item   { left: 22%; top: 68%; transform: translate(-50%, -50%); }
.planet-item.community-item { left: 22%; top: 32%; transform: translate(-50%, -50%); }

.planet-item:hover {
    transform: translate(-50%, -50%) scale(1.1) !important;
}

.circle-badge {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.08),
    0 2px 8px rgba(0, 0, 0, 0.04);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 12px;
    transition: all 0.3s ease;
    border: 3px solid rgba(255, 255, 255, 0.9);
    cursor: pointer;
}

.circle-badge:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    transform: scale(1.05);
}

.circle-badge:active {
    transform: scale(0.98);
}

.circle-badge.white .badge-title {
    font-size: 26px;
    font-weight: 700;
    color: #333;
    margin-bottom: 6px;
    letter-spacing: 1px;
}

.circle-badge.white .badge-info {
    font-size: 11px;
    color: #666;
    margin-top: 3px;
    line-height: 1.4;
}

.badge-title {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
    letter-spacing: 1px;
}

.badge-info {
    font-size: 10px;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.4;
}

.gradient-purple {
    background: linear-gradient(135deg, #a72aa8 0%, #c44dc6 50%, #e170e4 100%);
    box-shadow: 0 8px 30px rgba(167, 42, 168, 0.4),
    inset 0 -5px 15px rgba(255, 255, 255, 0.1);
}

.gradient-green {
    background: linear-gradient(135deg, #4edd6b 0%, #6ef58b 50%, #8efcab 100%);
    box-shadow: 0 8px 30px rgba(78, 221, 107, 0.4),
    inset 0 -5px 15px rgba(255, 255, 255, 0.1);
}

.gradient-orange {
    background: linear-gradient(135deg, #fe6a1f 0%, #ff8a4f 50%, #ffaa7f 100%);
    box-shadow: 0 8px 30px rgba(254, 106, 31, 0.4),
    inset 0 -5px 15px rgba(255, 255, 255, 0.1);
}

.gradient-pink {
    background: linear-gradient(135deg, #fc3126 0%, #fd5146 50%, #fd7166 100%);
    box-shadow: 0 8px 30px rgba(252, 49, 38, 0.4),
    inset 0 -5px 15px rgba(255, 255, 255, 0.1);
}

.gradient-blue {
    background: linear-gradient(135deg, #0dbafc 0%, #2dc8fd 50%, #4dd6fe 100%);
    box-shadow: 0 8px 30px rgba(13, 186, 252, 0.4),
    inset 0 -5px 15px rgba(255, 255, 255, 0.1);
}

.gradient-yellow {
    background: linear-gradient(135deg, #f7f81e 0%, #f9fa3e 50%, #fbfc5e 100%);
    box-shadow: 0 8px 30px rgba(247, 248, 30, 0.4),
    inset 0 -5px 15px rgba(255, 255, 255, 0.1);
}

.gradient-red {
    background: linear-gradient(135deg, #fc3126 0%, #fd5146 50%, #fd7166 100%);
    box-shadow: 0 8px 30px rgba(252, 49, 38, 0.4),
    inset 0 -5px 15px rgba(255, 255, 255, 0.1);
}

.forum-item,
.exhibition-item,
.conference-item,
.camp-item,
.circle-item,
.community-item,
.register-item {
    /* 位置由JavaScript动态计算，确保围绕中心数字6旋转 */
}

/* 快捷链接 */
.quick-links {
    display: none;
}

/* ========== 通用Section样式 ========== */
.section-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    margin-bottom: 35px;
    position: relative;
}

.title-text {
    font-size: 34px;
    font-weight: 500;
    color: #444;
    display: block;
    margin-bottom: 10px;
    letter-spacing: 0.5px;
}

.section-title .title-line {
    display: block;
    width: 50px;
    height: 5px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 3px;
}

/* ========== Conference区域 ========== */
.conference-section {
    background: #00217c;
    padding: 80px 0;
    color: #ffffff;
}

.conference-section .title-text {
    color: rgba(255, 255, 255, 0.95);
}

.conference-content {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 60px;
    align-items: center;
}

/* 大会回顾时间线 */
.retrospect-list {
    width: 100%;
}

.retrospect-right {
    text-align: center;
}

.retrospect-img {
    max-width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

.retrospect-item {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 40px;
    padding: 22px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    transition: background-color 0.3s ease;
    align-items: start;
}

.retrospect-item:hover {
    background-color: rgba(129, 140, 248, 0.08);
    margin: 0 -20px;
    padding-left: 20px;
    padding-right: 20px;
}

.retrospect-date {
    color: rgba(255, 255, 255, 0.75);
    font-size: 15px;
    font-weight: 500;
    line-height: 1.4;
    text-align: right;
}

.retrospect-info {
    color: #ffffff;
}

.retrospect-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.retrospect-location {
    color: rgba(180, 180, 255, 0.8);
    font-size: 14px;
}

.date-tabs {
    display: flex;
    gap: 30px;
    margin-bottom: 25px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.date-tab {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    position: relative;
    padding-bottom: 12px;
    transition: color 0.3s;
    font-weight: 400;
}

.date-tab:hover {
    color: rgba(255, 255, 255, 0.7);
}

.date-tab.active {
    color: rgba(255, 255, 255, 0.95);
    font-weight: 600;
}

.date-tab.active::after {
    content: '';
    position: absolute;
    bottom: -13px;
    left: 0;
    right: 0;
    height: 3px;
    background: #818cf8;
    border-radius: 2px;
}

.schedule-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.schedule-item {
    display: grid;
    grid-template-columns: 110px 1fr auto;
    gap: 25px;
    align-items: start;
    padding: 18px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: background-color 0.3s ease;
}

.schedule-item:hover {
    background-color: rgba(129, 140, 248, 0.05);
    margin: 0 -15px;
    padding-left: 15px;
    padding-right: 15px;
}

.schedule-time {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 400;
    padding-top: 2px;
}

.schedule-title {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
    margin-bottom: 6px;
    line-height: 1.6;
}

.schedule-location {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    margin-top: 4px;
}

.schedule-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: flex-end;
}

.action-link {
    font-size: 13px;
    color: #818cf8;
    font-weight: 400;
    transition: color 0.3s;
    white-space: nowrap;
}

.action-link:hover {
    color: #a5b4fc;
    text-decoration: underline;
}

.more-link {
    margin-top: 25px;
    text-align: right;
}

.more-link a {
    font-size: 13px;
    color: #818cf8;
    font-weight: 400;
}

/* ========== 大会服务 ========== */
.services-section {
    background: linear-gradient(135deg, #00217c 0%, #1e3a5f 100%);
    padding: 80px 0;
    color: rgba(255, 255, 255, 0.9);
    position: relative;
    overflow: hidden;
}

.services-section .title-text {
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 50px;
}

.service-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 20px rgba(129, 140, 248, 0.2);
}

.service-icon.card-icon {
    font-size: 56px;
    margin-bottom: 25px;
    transition: transform 0.3s ease;
    display: inline-block;
}

.card-emoji {
    font-size: 56px;
    margin-bottom: 25px;
    display: inline-block;
}

.service-card:hover .service-icon {
    transform: scale(1.1);
}

.service-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.service-card:hover h3 {
    color: #a5b4fc;
}

.service-card p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
    margin-bottom: 25px;
}

.service-link {
    font-size: 15px;
    color: #3b82f6;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
    padding-bottom: 2px;
}

.service-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #818cf8, #a5b4fc);
    transition: width 0.3s ease;
}

.service-link:hover {
    color: #60a5fa;
}

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

/* ========== 合作伙伴 ========== */
.partners-section {
    background: url('../images/2.jpg') center center no-repeat;
    background-size: cover;
    padding: 50px 0;
    color: rgba(255, 255, 255, 0.9);
    position: relative;
    overflow: hidden;
}

.partners-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 26, 94, 0.55);
    pointer-events: none;
}

.partners-section .title-text {
    color: rgba(255, 255, 255, 0.95);
}

.partners-content {
    margin-top: 30px;
}

.partner-category {
    margin-bottom: 25px;
    position: relative;
    padding: 18px 22px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s ease;
}

.partner-category:hover {
    border-color: rgba(129, 140, 248, 0.25);
}

.partner-category h3 {
    font-size: 15px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 15px;
    padding-left: 12px;
    border-left: 3px solid #818cf8;
    position: relative;
    transition: all 0.3s ease;
}

.partner-category:hover h3 {
    color: #a5b4fc;
}

.partner-logos {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
}

.partner-logo {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.75);
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.partner-logo:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.25);
    border-color: rgba(59, 130, 246, 0.4);
}

.partner-logo span {
    position: relative;
    z-index: 1;
}

/* ========== Camp区域 ========== */
.camp-section {
    background: url('../images/camp-bg.png') center center no-repeat;
    background-size: cover;
    padding: 30px 0;
    color: rgba(255, 255, 255, 0.95);
    position: relative;
}

.camp-section .title-text {
    color: #ffffff;
}

.camp-section .title-line {
    background: linear-gradient(90deg, #ffffff, #a855f7);
}

.camp-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 33, 124, 0.4), rgba(0, 26, 94, 0.4));
    pointer-events: none;
}

.camp-content {
    display: grid;
    grid-template-columns: 180px 1fr auto;
    gap: 25px;
    align-items: start;
    min-height: 400px;
}

.camp-stats {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 20px;
}

.stat-text {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
}

.stat-number {
    font-size: 38px;
    font-weight: 700;
    color: #ffffff;
    line-height: 1;
    letter-spacing: -1px;
}

.stat-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
}

.speaker-bubbles {
    position: relative;
    height: 420px;
    width: 100%;
}

.bubble {
    position: absolute;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.12);
    transition: transform 0.3s;
    background: #fff;
}

.bubble:hover {
    transform: scale(1.08);
    z-index: 10;
    box-shadow: 0 10px 35px rgba(0, 0, 0, 0.2);
}

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

.bubble:hover img {
    transform: scale(1.1);
}

.bubble-1 {
    /* JS控制位置和大小 */
}

.bubble-2 {
    /* JS控制位置和大小 */
}

.bubble-3 {
    /* JS控制位置和大小 */
}

.bubble-4.featured {
    background: linear-gradient(135deg, #667eea, #764ba2);
    padding: 4px;
    box-shadow: 0 10px 35px rgba(102, 126, 234, 0.3);
}

.bubble-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 12px;
    background: linear-gradient(180deg, transparent, rgba(102, 126, 234, 0.95));
    color: #fff;
}

.speaker-name {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 5px;
}

.speaker-title,
.speaker-role {
    font-size: 11px;
    line-height: 1.5;
    opacity: 0.95;
}

.bubble-5 {
    /* JS控制位置和大小 */
}

.bubble-6 {
    /* JS控制位置和大小 */
}

.camp-actions {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.camp-actions .action-link {
    font-size: 14px;
    color: #818cf8;
    font-weight: 400;
    text-align: right;
}

/* ========== 论文投稿区域 ========== */
.paper-submission-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 80px 0;
    color: #1e293b;
}

.paper-submission-content {
    max-width: 900px;
    margin: 0 auto;
}

.paper-submission-content h3 {
    font-size: 22px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 20px;
    margin-top: 30px;
}

.paper-submission-content h3:first-child {
    margin-top: 0;
}

.topic-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.topic-list li {
    padding: 12px 20px;
    background: #fff;
    border-radius: 8px;
    border-left: 4px solid #3b82f6;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    font-size: 15px;
    color: #475569;
}

.topic-list li:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
    border-left-color: #2563eb;
}

.requirements-list {
    padding-left: 20px;
    margin: 0;
    line-height: 1.8;
}

.requirements-list li {
    margin-bottom: 15px;
    color: #475569;
    font-size: 15px;
}

.submission-types {
    margin-top: 20px;
    padding-left: 20px;
}

.type-item {
    margin-bottom: 15px;
    padding: 15px 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.type-item strong {
    color: #1e293b;
    font-size: 16px;
    display: inline;
}

.type-item span {
    color: #64748b;
    font-size: 14px;
    line-height: 1.6;
}

.paper-dates {
    margin-top: 40px;
    padding: 30px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 12px;
    color: #fff;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.paper-dates h3 {
    color: #fff;
    margin-bottom: 25px;
    font-size: 22px;
}

.dates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.date-item {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.date-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.25);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.date-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 10px;
}

.date-value {
    font-size: 20px;
    font-weight: 600;
    color: #fff;
}

.paper-action {
    text-align: center;
    margin-top: 40px;
}

.submit-btn {
    display: inline-block;
    padding: 15px 50px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
}

.submit-btn:active {
    transform: translateY(-1px);
}

/* ========== Community区域 ========== */
.community-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 35px;
}

.news-item {
    padding-bottom: 35px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.news-item:hover {
    padding-left: 10px;
}

.news-item:hover .news-title {
    color: #3b82f6;
}

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

.news-title {
    font-size: 20px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 10px;
    line-height: 1.6;
}

.news-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 8px;
    font-weight: 400;
}

.news-date {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
}

.news-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.news-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.news-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
    min-height: 260px;
    /* GPU 合成层 + 绘制范围隔离，滚动不触发整页重绘 */
    will-change: transform;
    contain: layout paint;
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 30px rgba(129, 140, 248, 0.2);
}

.news-card:hover .card-image {
    transform: scale(1.05);
}

.card-image {
    width: 100%;
    height: 180px;
    display: block;
    object-fit: cover;
    background: linear-gradient(135deg, #1e3a5f 0%, #3b82f6 50%, #00217c 100%);
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
    transition: transform 0.4s ease;
    min-height: 180px;
}

.card-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 10px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    font-size: 11px;
    border-radius: 4px;
    backdrop-filter: blur(4px);
}

.card-content {
    padding: 14px;
}

.card-title {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    font-weight: 400;
}

.carousel-arrows {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 20px;
}

.arrow {
    width: 38px;
    height: 38px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    font-size: 18px;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.arrow:hover {
    border-color: #3b82f6;
    color: #3b82f6;
    background: rgba(59, 130, 246, 0.1);
}

/* ========== Circle区域 ========== */
.circle-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.circle-card {
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    height: 260px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    /* 移除 will-change: transform 避免过度GPU内存占用 */
    contain: layout paint;
}

.circle-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
}

.circle-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
    /* 移除 will-change: transform 避免过度GPU内存占用 */
    backface-visibility: hidden;
}

.circle-card:hover img {
    transform: scale(1.08);
}

.card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 18px;
    background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.75));
    color: #fff;
    transition: all 0.3s ease;
}

.circle-card:hover .card-overlay {
    background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.85));
    padding-bottom: 22px;
}

.card-overlay .card-title {
    font-size: 16px;
    font-weight: 500;
    color: #fff;
    line-height: 1.4;
}

/* ========== Footer ========== */
.main-footer {
    background: url('../images/15.jpg') center center no-repeat;
    background-size: cover;
    color: #fff;
    padding: 60px 0 30px;
}

.footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo {
    height: 50px;
    margin-bottom: 20px;
}

.footer-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.link-group h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
}

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

.link-group ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.3s;
}

.link-group ul li a:hover {
    color: #6366f1;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: #000000;
}

/* 图片懒加载占位符 */
img {
    opacity: 1;
    transition: opacity 0.3s;
}

img[data-src] {
    opacity: 0;
}

/* 选中文字样式 */
::selection {
    background: rgba(102, 126, 234, 0.3);
    color: #333;
}

::-moz-selection {
    background: rgba(102, 126, 234, 0.3);
    color: #333;
}

/* 语言切换Toast提示 */
.language-toast {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
    z-index: 10000;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
}

.language-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ========== 响应式设计 ========== */
@media (max-width: 1400px) {
    .planet-container {
        width: 1000px;
        height: 650px;
    }
}

@media (max-width: 1200px) {
    .header-inner {
        padding: 0 30px;
    }

    .main-nav ul {
        gap: 30px;
    }

    .planet-container {
        width: 900px;
        height: 600px;
    }

    .circle-badge {
        width: 110px;
        height: 110px;
    }

    .conference-content {
        grid-template-columns: 300px 1fr;
        gap: 40px;
    }

    .camp-content {
        grid-template-columns: 240px 1fr auto;
        gap: 40px;
    }
}

@media (max-width: 992px) {
    .main-nav {
        display: none;
    }

    .planet-section {
        min-height: 600px;
    }

    .planet-container {
        width: 100%;
        height: 500px;
    }

    .circle-badge {
        width: 90px;
        height: 90px;
        padding: 8px;
    }

    .circle-badge.white .badge-title {
        font-size: 20px;
    }

    .badge-title {
        font-size: 15px;
    }

    .badge-info {
        font-size: 9px;
    }

    .quick-links {
        right: 20px;
    }

    .conference-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .camp-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .speaker-bubbles {
        height: 400px;
    }

    .community-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .header-inner {
        padding: 0 20px;
    }

    .logo-text {
        display: none;
    }

    .hero-banner {
        height: 400px;
    }

    .banner-title {
        font-size: 28px;
    }

    .play-btn {
        width: 60px;
        height: 60px;
    }

    .play-icon {
        font-size: 30px;
    }

    .float-btn {
        right: 20px;
        width: 120px;
        height: 80px;
    }

    .section-inner {
        padding: 0 15px;
    }

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

    .schedule-item {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .schedule-actions {
        flex-direction: row;
        justify-content: flex-start;
    }

    .stat-number {
        font-size: 42px;
    }

    .bubble-4.featured {
        width: 180px;
        height: 180px;
    }

    .bubble-1,
    .bubble-2,
    .bubble-3,
    .bubble-5,
    .bubble-6 {
        width: 150px;
        height: 150px;
    }

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

    .circle-grid {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    /* ========== 右侧悬浮栏（Hover弹出式） ========== */
    .floating-sidebar {
        position: fixed;
        right: 0;
        top: 50%;
        transform: translateY(-50%);
        z-index: 999;
        display: flex;
        align-items: center;
    }

    /* 触发器 - 右侧边缘的小线和点 */
    .sidebar-trigger {
        position: relative;
        width: 8px;
        height: 200px;
        cursor: pointer;
    }

    .trigger-line {
        position: absolute;
        top: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 2px;
        height: 100%;
        background: linear-gradient(180deg, transparent, #c084fc, transparent);
    }

    .trigger-dot {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 12px;
        height: 12px;
        background: #3b82f6;
        border-radius: 50%;
        box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
        transition: all 0.3s ease;
    }

    .floating-sidebar:hover .trigger-dot {
        transform: translate(-50%, -50%) scale(1.3);
        box-shadow: 0 0 15px rgba(59, 130, 246, 0.8);
    }

    /* 菜单内容 - 默认隐藏 */
    .sidebar-menu {
        position: absolute;
        right: 8px;
        top: 50%;
        transform: translateY(-50%) translateX(100%);
        background: rgba(240, 240, 240, 0.95);
        backdrop-filter: blur(10px);
        padding: 30px 20px;
        border-radius: 8px 0 0 8px;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        min-width: 180px;
    }

    /* 鼠标悬停时显示菜单 */
    .floating-sidebar:hover .sidebar-menu {
        opacity: 1;
        visibility: visible;
        transform: translateY(-50%) translateX(0);
    }

    /* 主菜单项 */
    .sidebar-menu-item {
        display: block;
        font-size: 22px;
        color: #1e3a8a;
        font-weight: 600;
        padding: 12px 0;
        text-align: right;
        text-decoration: none;
        transition: all 0.3s ease;
        position: relative;
    }

    .sidebar-menu-item:hover {
        color: #2563eb;
        transform: translateX(-5px);
    }

    /* 子菜单 */
    .sidebar-submenu {
        padding-left: 0;
        margin: 5px 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .sidebar-menu-item:first-child:hover ~ .sidebar-submenu,
    .sidebar-submenu:hover {
        max-height: 300px;
    }

    .sidebar-submenu-item {
        display: block;
        font-size: 18px;
        color: #2563eb;
        padding: 8px 0;
        text-align: right;
        text-decoration: none;
        transition: all 0.3s ease;
    }

    .sidebar-submenu-item:hover {
        color: #1d4ed8;
        transform: translateX(-5px);
    }

    /* ========== 大会服务 ========== */
    .services-section {
        background: #0f172a;
        padding: 60px 0;
        color: rgba(255, 255, 255, 0.9);
    }

    .services-section .title-text {
        color: rgba(255, 255, 255, 0.9);
    }

    .services-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
        margin-top: 40px;
    }

    .service-card {
        background: rgba(255, 255, 255, 0.05);
        border-radius: 16px;
        padding: 35px 30px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        transition: all 0.3s ease;
        text-align: center;
        border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .service-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 12px 35px rgba(129, 140, 248, 0.2);
        border-color: rgba(129, 140, 248, 0.4);
    }

    .service-icon {
        font-size: 48px;
        margin-bottom: 20px;
    }

    .service-card h3 {
        font-size: 20px;
        font-weight: 600;
        color: rgba(255, 255, 255, 0.9);
        margin-bottom: 12px;
    }

    .service-card p {
        font-size: 14px;
        color: rgba(255, 255, 255, 0.6);
        line-height: 1.6;
        margin-bottom: 20px;
    }

    .service-link {
        font-size: 14px;
        color: #818cf8;
        font-weight: 500;
        transition: color 0.3s;
    }

    .service-link:hover {
        color: #a5b4fc;
        text-decoration: underline;
    }

    /* ========== 合作伙伴 ========== */
    .partners-section {
        background: #1e293b;
        padding: 60px 0;
        color: rgba(255, 255, 255, 0.9);
    }

    .partners-section .title-text {
        color: rgba(255, 255, 255, 0.9);
    }

    .partners-content {
        margin-top: 40px;
    }

    .partner-category {
        margin-bottom: 40px;
    }

    .partner-category h3 {
        font-size: 18px;
        font-weight: 600;
        color: rgba(255, 255, 255, 0.9);
        margin-bottom: 20px;
        padding-left: 15px;
        border-left: 4px solid #818cf8;
    }

    .partner-logos {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
    }

    .partner-logo {
        width: 150px;
        height: 80px;
        background: rgba(255, 255, 255, 0.05);
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        color: rgba(255, 255, 255, 0.7);
        font-weight: 500;
        transition: all 0.3s ease;
        border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .partner-logo:hover {
        background: rgba(129, 140, 248, 0.2);
        color: #fff;
        transform: scale(1.05);
        box-shadow: 0 6px 20px rgba(129, 140, 248, 0.3);
        border-color: rgba(129, 140, 248, 0.4);
    }

    /* ========== 社交链接 ========== */
    .social-links {
        display: flex;
        gap: 12px;
        margin-top: 20px;
    }

    .social-icon {
        width: 40px;
        height: 40px;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        transition: all 0.3s ease;
        text-decoration: none;
    }

    .social-icon:hover {
        background: linear-gradient(135deg, #667eea, #764ba2);
        transform: scale(1.15);
        box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    }
}

/* ========== 论坛与议程 ========== */
.forum-section {
    background: linear-gradient(135deg, rgba(0, 33, 124, 0.75), rgba(0, 26, 94, 0.75)), url('../images/3.jpg') center center no-repeat;
    background-size: cover;
    padding: 50px 0;
    color: #ffffff;
    position: relative;
}

.forum-section .title-text {
    color: #ffffff;
}

.forum-section .forum-item-card:hover {
    background: rgba(59, 130, 246, 0.15);
    cursor: pointer;
    border-radius: 8px;
}
.forum-content {
    margin-top: 30px;
}

.forum-tabs {
    display: flex;
    gap: 25px;
    margin-bottom: 25px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.forum-tab {
    font-size: 17px;
    color: #dbeafe;
    cursor: pointer;
    position: relative;
    padding-bottom: 12px;
    transition: color 0.3s;
    font-weight: 400;
    user-select: none;
}

.forum-tab:hover {
    color: #ffffff;
    text-decoration: none;
}

.forum-tab.active {
    color: #ffffff;
    font-weight: 600;
    text-shadow: 0 0 10px rgba(96, 165, 250, 0.5);
}
.forum-tab.active::after {
    content: '';
    position: absolute;
    bottom: -13px;
    left: 0;
    right: 0;
    height: 3px;
    background: #3b82f6;
    border-radius: 2px;
}

.forum-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.forum-item-card {
    display: grid;
    grid-template-columns: 110px 1fr auto;
    gap: 25px;
    align-items: start;
    padding: 18px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.forum-item-card:hover {
    background-color: rgba(59, 130, 246, 0.15);
    margin: 0 -15px;
    padding: 18px 15px;
    border-radius: 8px;
}

.forum-time {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
    padding-top: 2px;
}

.forum-info h4 {
    font-size: 17px;
    color: #ffffff;
    font-weight: 600;
    margin-bottom: 6px;
    line-height: 1.6;
}

.forum-info p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 4px;
}

.forum-location {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
}

.action-link {
    color: #93c5fd;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.3s;
    white-space: nowrap;
    font-size: 15px;
}

.action-link:hover {
    color: #ffffff;
    text-decoration: underline;
}

.more-link {
    margin-top: 25px;
    text-align: right;
    position: relative;
    z-index: 1;
}

.more-link a {
    color: #93c5fd;
    font-size: 15px;
    transition: all 0.3s ease;
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
    display: inline-block;
}

.more-link a:hover {
    color: #ffffff;
    text-decoration: underline;
}
/* ========== 展览展示 ========== */
.exhibition-section {
    background: #00217c;
    padding: 50px 0;
    color: rgba(255, 255, 255, 0.9);
    contain: layout paint;
}

.exhibition-section .title-text {
    color: rgba(255, 255, 255, 0.95);
}

.exhibition-content {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 50px;
    align-items: center;
    min-height: 400px;
}

.exhibition-stats {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-top: 40px;
}

.exhibition-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 25px;
}

.exhibition-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.exhibition-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 30px rgba(129, 140, 248, 0.2);
    border-color: rgba(129, 140, 248, 0.3);
}

.exhibition-card:hover .card-image {
    transform: scale(1.05);
}

.exhibition-card .card-image {
    height: 160px;
    position: relative;
    overflow: hidden;
    transition: transform 0.4s ease;
}

.exhibition-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.exhibition-card .card-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 10px;
    background: rgba(0, 0, 0, 0.6);
    color: rgba(255, 255, 255, 0.9);
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
}

.exhibition-card .card-content {
    padding: 15px;
}

.exhibition-card .card-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 6px;
}

.exhibition-card .card-content p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.5;
}

.exhibition-actions {
    display: flex;
    gap: 20px;
}

/* ========== 参会报名 ========== */
.registration-section {
    position: relative;
    padding: 80px 0;
    color: #fff;
    overflow: hidden;
}

.registration-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('../images/fe5cff24-4ea6-4ce6-90bf-0528dcada21f.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
}

.registration-section .section-inner {
    position: relative;
    z-index: 1;
}

.registration-content {
    margin-top: 40px;
}

.registration-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.registration-card {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    padding: 40px 25px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.registration-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 20px rgba(129, 140, 248, 0.15);
}

.card-icon {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 20px;
}

.registration-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: #ffffff !important;
    margin-bottom: 15px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.registration-card p {
    font-size: 14px;
    color: #ffffff !important;
    line-height: 1.6;
    margin-bottom: 25px;
    min-height: 45px;
}

.registration-section .title-text {
    color: #ffffff !important;
}

.reg-btn {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    border-radius: 25px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.reg-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

/* ========== Planet区域 ========== */
.planet-section {
    background: url('../images/diyigetu.jpg') center center no-repeat;
    background-size: cover;
    padding: 80px 0;
    color: rgba(255, 255, 255, 0.9);
    position: relative;
}

.planet-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 33, 124, 0.4), rgba(0, 26, 94, 0.4));
    pointer-events: none;
}

/* ========== Community区域 ========== */
.community-section {
    background: #00217c;
    padding: 50px 0;
    color: rgba(255, 255, 255, 0.95);
    position: relative;
}

.community-section .title-text {
    color: #ffffff;
}

.community-section .title-line {
    background: linear-gradient(90deg, #ffffff, #a855f7);
}

/* ========== Circle区域 ========== */
.circle-section {
    background: #00217c;
    padding: 50px 0;
    color: rgba(255, 255, 255, 0.9);
    contain: layout paint;
}

.circle-section .title-text {
    color: rgba(255, 255, 255, 0.95);
}

/* ========== 创意城市Logo区域 ========== */
.creative-cities-logo-section {
    background: url('../images/15.jpg') center center no-repeat;
    background-size: cover;
    padding: 40px 0;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.creative-cities-logo-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 33, 124, 0.3), rgba(0, 26, 94, 0.3));
    pointer-events: none;
}

/* ========== 响应式调整 ========== */
@media (max-width: 992px) {
    .forum-item-card {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .exhibition-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

    .registration-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .exhibition-grid {
        grid-template-columns: 1fr;
    }

    .registration-cards {
        grid-template-columns: 1fr;
    }

    .exhibition-actions {
        flex-direction: column;
        gap: 10px;
    }
}
/* 响应式 - 悬浮栏 */
@media (max-width: 992px) {
    .floating-sidebar {
        right: 10px;
    }

    .sidebar-item {
        width: 50px;
        height: 50px;
    }

    .sidebar-item .icon {
        font-size: 16px;
    }

    .sidebar-item .text {
        font-size: 8px;
    }

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

    .partner-logo {
        width: 120px;
        height: 65px;
        font-size: 12px;
    }
}

@media (max-width: 768px) {
    .floating-sidebar {
        display: none;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .partner-logo {
        width: 100px;
        height: 55px;
        font-size: 11px;
    }

    .social-links {
        justify-content: center;
    }
}