/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #ff0050;
    --secondary-color: #25f4ee;
    --dark-color: #000000;
    --light-color: #121212;
    --text-color: #ffffff;
    --text-light: #cccccc;
    --white: #ffffff;
    --black: #000000;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(255, 0, 80, 0.2);
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--dark-color);
    overflow-x: hidden;
}

/* 容器 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航容器 - 特殊处理 */
.nav-container, #main-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* 部分通用样式 */
.section {
    padding: 80px 0;
    background-color: var(--dark-color);
}

.section:nth-child(even) {
    background-color: var(--light-color);
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--white);
    position: relative;
    display: inline-block;
    text-shadow: 0 0 10px rgba(255, 0, 80, 0.3);
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* 顶部通知栏 - TikTok风格优化 */
#notification-bar {
    background: linear-gradient(90deg, rgba(255,0,80,0.95), rgba(37,244,238,0.95));
    color: var(--white);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(255,0,80,0.3);
    border-bottom: 2px solid rgba(255,255,255,0.1);
}

.notification-content {
    white-space: nowrap;
    animation: scroll 60s linear infinite;
    font-weight: 700;
    font-size: 16px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    text-shadow: 0 2px 8px rgba(0,0,0,0.3);
    letter-spacing: 0.5px;
    position: relative;
}

/* 手机端加快滚动速度 */
@media (max-width: 768px) {
    .notification-content {
        animation-duration: 25s;
        font-size: 14px;
    }
}

.notification-content.cloned {
    position: absolute;
    top: 0;
    left: 100%;
}

/* 通知分隔符样式 */
.notification-content .notification-item {
    display: inline-block;
    position: relative;
    transition: all 0.3s ease;
    padding: 2px 0;
}

.notification-content .notification-item:not(:last-child)::after {
    content: "•";
    margin: 0 15px;
    color: var(--white);
    opacity: 0.8;
    font-size: 20px;
    vertical-align: middle;
    animation: bounce 3s infinite;
}

/* 高亮元素样式 */
.notification-content .country-flag {
    font-size: 20px !important;
    margin: 0 3px;
    display: inline-block;
    transition: transform 0.3s ease;
}

.notification-content .notification-item:hover .country-flag {
    transform: scale(1.2) rotate(5deg);
}

.notification-content .country-name {
    font-weight: 800 !important;
    color: #fff;
    text-shadow: 0 0 10px rgba(255,255,255,0.5);
}

.notification-content .level-name,
.notification-content .notification-item .level {
    font-weight: 800 !important;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.notification-content .seller-id {
    font-family: 'Courier New', monospace !important;
    font-weight: 800 !important;
    color: var(--secondary-color);
    text-shadow: 0 0 8px rgba(37,244,238,0.6);
    letter-spacing: 0.5px;
    padding: 0 3px;
    border-radius: 3px;
    background-color: rgba(37,244,238,0.1);
}

.notification-content .amount {
    font-weight: 900 !important;
    font-size: 18px !important;
    color: #fff;
    text-shadow: 0 0 12px rgba(255,255,255,0.7);
    padding: 0 4px;
    border-radius: 4px;
    background: linear-gradient(90deg, rgba(255,0,80,0.2), rgba(37,244,238,0.2));
    border: 1px solid rgba(255,255,255,0.3);
}

/* 动画效果 */
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.05); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

/* 通知项悬停效果 */
.notification-content .notification-item:hover {
    transform: translateY(-1px);
    text-shadow: 0 3px 12px rgba(0,0,0,0.4);
}

/* 定期随机高亮某条通知 */
@keyframes highlight-random {
    0%, 100% { opacity: 1; }
    20% { opacity: 1; text-shadow: 0 0 20px rgba(255,255,255,0.8); }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .notification-content {
        font-size: 14px !important;
        animation-duration: 80s !important;
    }
    
    .notification-content .notification-item:not(:last-child)::after {
        margin: 0 8px;
        font-size: 16px;
    }
    
    .notification-content .country-flag {
        font-size: 18px !important;
    }
    
    .notification-content .amount {
        font-size: 16px !important;
    }
}

@media (max-width: 576px) {
    .notification-content {
        font-size: 13px !important;
        animation-duration: 100s !important;
    }
    
    .notification-content .notification-item:not(:last-child)::after {
        margin: 0 5px;
        font-size: 14px;
    }
    
    #notification-bar {
        padding: 10px 0;
    }
}

@keyframes scroll {
    0% { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}

/* 导航栏 - TikTok风格优化 */
#main-nav {
    background-color: rgba(0, 0, 0, 0.8);
    box-shadow: 0 2px 20px rgba(255, 0, 80, 0.1);
    position: sticky;
    top: 40px;
    z-index: 999;
    padding: 12px 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
}

#main-nav.scrolled {
    padding: 8px 0;
    box-shadow: 0 4px 20px rgba(255, 0, 80, 0.15);
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
}

.logo img {
    height: 40px;
    transition: transform 0.3s ease;
}

.logo img:hover {
    transform: scale(1.05);
}

/* 桌面端菜单 - TikTok风格优化 */
.desktop-menu {
    flex: 1;
    display: flex;
    justify-content: center;
    margin: 0 40px;
}

.desktop-menu ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.desktop-menu ul li {
    margin: 0 18px;
    position: relative;
}

.desktop-menu ul li a {
    text-decoration: none;
    color: var(--white);
    font-weight: 600;
    font-size: 15px;
    transition: all 0.3s ease;
    padding: 8px 0;
    display: inline-block;
    position: relative;
}

.desktop-menu ul li a:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.desktop-menu ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.desktop-menu ul li a:hover::after {
    width: 100%;
}

/* 语言切换 - TikTok风格优化 */
.language-switch {
    position: relative;
}

.language-switch select {
    background-color: #f8f8f8;
    border: 1px solid #eaeaea;
    padding: 8px 30px 8px 12px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23666'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 16px;
}

.language-switch select:hover {
    border-color: var(--primary-color);
    background-color: var(--white);
    box-shadow: 0 2px 8px rgba(255,0,80,0.1);
}

.language-switch select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255,0,80,0.1);
}

/* 移动端菜单按钮 - TikTok风格优化 */
.mobile-menu-btn {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-color);
    transition: all 0.3s ease;
    padding: 5px;
    border-radius: 50%;
}

.mobile-menu-btn:hover {
    color: var(--primary-color);
    background-color: #f8f8f8;
}

/* 移动端菜单 - TikTok风格优化 */
#mobile-menu {
    position: fixed;
    top: 92px;
    left: 0;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    box-shadow: 0 10px 30px rgba(255, 0, 80, 0.15);
    z-index: 998;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(-100%);
    opacity: 0;
    border-radius: 0 0 16px 16px;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

#mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
}

#mobile-menu ul {
    list-style: none;
    padding: 10px 0;
    margin: 0;
}

#mobile-menu ul li {
    padding: 0;
    position: relative;
}

#mobile-menu ul li a {
    text-decoration: none;
    color: var(--white);
    font-weight: 600;
    display: block;
    padding: 14px 25px;
    transition: all 0.3s ease;
    font-size: 16px;
    position: relative;
    overflow: hidden;
}

#mobile-menu ul li a:hover {
    color: var(--primary-color);
    background-color: #fff0f5;
}

#mobile-menu ul li a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,0,80,0.05), transparent);
    transition: all 0.5s ease;
}

#mobile-menu ul li a:hover::before {
    left: 100%;
}

/* 语言选择器 - 移动端优化 */
.mobile-language-switch {
    display: none;
}

.mobile-language-switch select {
    background-color: #f8f8f8;
    border: 1px solid #eaeaea;
    padding: 10px 35px 10px 15px;
    border-radius: 25px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23666'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 16px;
}

/* 顶部宣传区域 */
#hero-section {
    position: relative;
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, #ff5e8a 100%);
    color: var(--white);
    text-align: center;
    overflow: hidden;
}

/* 背景动态效果 */
#hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 10%, transparent 10.5%) 0 0, 
                radial-gradient(circle, rgba(255,255,255,0.1) 10%, transparent 10.5%) 50px 50px;
    background-size: 100px 100px;
    animation: bgMove 20s linear infinite;
}

@keyframes bgMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(-50px, -50px);
    }
}

/* 装饰元素 */
.hero-decoration {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
}

.hero-decoration:nth-child(1) {
    top: -150px;
    left: -150px;
    animation: float 8s ease-in-out infinite;
}

.hero-decoration:nth-child(2) {
    bottom: -150px;
    right: -150px;
    animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-20px) scale(1.05);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 0 20px;
    max-width: 800px;
    animation: fadeInUp 1s ease-out;
}

/* 文字动画 */
.hero-content h2 {
    font-size: 3.2rem;
    margin-bottom: 20px;
    font-weight: 800;
    letter-spacing: -1px;
    animation: textPop 0.8s ease-out 0.2s both;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    line-height: 1.6;
    font-weight: 300;
    animation: textPop 0.8s ease-out 0.4s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes textPop {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* 按钮增强效果 */
.hero-content .btn-primary {
    font-size: 1.1rem;
    padding: 15px 35px;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    background: var(--white);
    color: var(--primary-color);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
    animation: buttonPop 0.8s ease-out 0.6s both;
}

.hero-content .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
    background: #f8f8f8;
}

@keyframes buttonPop {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* 按钮样式 - TikTok风格 */
.btn-primary {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    box-shadow: 0 0 20px rgba(255, 0, 80, 0.3);
    overflow: hidden;
    position: relative;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: rotate(45deg);
    animation: shine 2s infinite;
}

@keyframes shine {
    0% { left: -100%; }
    100% { left: 100%; }
}

.btn-primary:hover {
    background-color: #e00046;
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(255, 0, 80, 0.5);
}

.btn-secondary {
    display: inline-block;
    background-color: transparent;
    color: var(--white);
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid var(--white);
    cursor: pointer;
    font-size: 1rem;
}

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--dark-color);
}

/* 关于我们 */
.about-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.about-text {
    flex: 1;
    min-width: 300px;
    margin-right: 40px;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 20px;
    color: var(--text-light);
}

.about-stats {
    display: flex;
    flex-wrap: wrap;
    margin-top: 30px;
}

.stat-item {
    flex: 1;
    min-width: 150px;
    text-align: center;
    padding: 15px;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.about-image {
    flex: 1;
    min-width: 300px;
}

.about-image img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* 支持站点 - TikTok风格 */
.bg-light {
    background-color: var(--light-color);
}

.countries-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.country-card {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    padding: 25px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.country-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 30px rgba(255, 0, 80, 0.2);
    border-color: rgba(255, 0, 80, 0.3);
}

.country-card img {
    width: 80px;
    height: 50px;
    object-fit: contain;
    margin-bottom: 15px;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.3));
}

.country-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--white);
    text-shadow: 0 0 10px rgba(255, 0, 80, 0.3);
}

.country-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.countries-more {
    text-align: center;
    margin-top: 40px;
}

/* 经营模式 - TikTok风格 */
.business-modes {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.business-mode {
    text-align: center;
    padding: 40px 20px;
    border-radius: var(--border-radius);
    background-color: rgba(255, 255, 255, 0.05);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.business-mode:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 30px rgba(255, 0, 80, 0.2);
    border-color: rgba(255, 0, 80, 0.3);
}

.mode-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--white);
    font-size: 2rem;
    box-shadow: 0 0 20px rgba(255, 0, 80, 0.5);
}

.business-mode h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--white);
    text-shadow: 0 0 10px rgba(255, 0, 80, 0.3);
}

.business-mode p {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.6;
    padding: 0 15px;
}

/* 全球生意增长专区 - TikTok风格 */
.bg-gradient {
    background: linear-gradient(135deg, #000000, #16213e);
    color: var(--white);
    position: relative;
    overflow: hidden;
    padding: 80px 0;
}

.bg-gradient::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 0, 80, 0.1) 0%, transparent 70%);
    animation: pulse 8s infinite ease-in-out;
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.1); }
}

.bg-gradient .section-header h2 {
    color: var(--white);
    position: relative;
    z-index: 1;
    margin-bottom: 15px;
}

.bg-gradient .section-header h2::after {
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
}

.bg-gradient .section-header p {
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    z-index: 1;
    margin-bottom: 40px;
}

/* 商家模式选项卡 */
.growth-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 2px solid transparent;
    padding: 12px 30px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.tab-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: all 0.5s ease;
    z-index: -1;
}

.tab-btn:hover::before {
    left: 100%;
}

.tab-btn.active {
    background-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(255, 0, 80, 0.5);
    border-color: var(--primary-color);
}

.tab-btn:hover:not(.active) {
    background-color: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 0, 80, 0.3);
}

/* 选项卡内容 */
.tab-contents {
    position: relative;
    z-index: 1;
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease-out;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 商家模式详情 */
.mode-details {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 60px;
}

.mode-info {
    flex: 1;
    min-width: 300px;
}

.mode-info h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--white);
    text-shadow: 0 0 10px rgba(255, 0, 80, 0.3);
}

.mode-info p {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.8);
}

.mode-features {
    list-style: none;
    padding: 0;
    margin-bottom: 30px;
}

.mode-features li {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 15px;
    color: rgba(255, 255, 255, 0.9);
}

.mode-features li i {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.mode-image {
    flex: 1;
    min-width: 300px;
    position: relative;
}

.mode-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.5s ease;
}

.mode-image:hover img {
    transform: scale(1.03);
}

.mode-image::after {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: -10px;
    bottom: -10px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 20px;
    z-index: -1;
    opacity: 0.6;
    transition: all 0.5s ease;
}

.mode-image:hover::after {
    opacity: 0.8;
    transform: translate(5px, 5px);
}

/* 展览区滚动效果 */
.exhibition-section {
    position: relative;
    margin-top: 2rem;
}

.exhibition-section h4 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--white);
    text-align: center;
}

.exhibition-scroll {
    position: relative;
    overflow: hidden;
    padding: 20px 0;
}

.exhibition-track {
    display: flex;
    gap: 30px;
    animation: scrollExhibition 30s linear infinite;
    will-change: transform;
}

.exhibition-scroll:hover .exhibition-track {
    animation-play-state: paused;
}

@keyframes scrollExhibition {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.exhibition-item {
    flex: 0 0 auto;
    width: 180px;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    /* 3D变换基础 */
    transform-style: preserve-3d;
    perspective: 1000px;
}

.exhibition-item:hover {
    transform: translateY(-8px) rotateY(5deg) rotateX(3deg);
    box-shadow: 0 15px 30px rgba(255, 0, 80, 0.3), 
                0 5px 15px rgba(37, 244, 238, 0.2),
                inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.exhibition-item img {
    width: 100%;
    height: 120px;
    object-fit: contain;
    transition: transform 0.5s ease;
    padding: 15px;
    /* 确保透明背景正常显示 */
    background-color: transparent;
}

.exhibition-item:hover img {
    transform: scale(1.05) translateZ(10px);
}

/* 自适应调整 */
@media (max-width: 768px) {
    .exhibition-item {
        width: 140px;
    }
    
    .exhibition-item img {
        height: 100px;
        padding: 10px;
    }
}

@media (max-width: 576px) {
    .exhibition-item {
        width: 120px;
    }
    
    .exhibition-item img {
        height: 90px;
        padding: 8px;
    }
}

/* 导航栏logo响应式样式 - 修复排版不齐问题 */
.pc-header-inner-left-logo {
    display: block;
    width: 250px;
    height: 31px;
    transition: all 0.3s ease;
}

/* 修复导航栏对齐问题 */
.nav-container {
    align-items: center !important;
    justify-content: space-between !important;
}

#main-nav .container {
    align-items: center !important;
    justify-content: space-between !important;
}

/* 确保logo元素正确居中对齐 */
.logo {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo a {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo img {
    height: auto;
    max-height: 100%;
}

/* 响应式调整 - 确保在所有设备上对齐 */
@media (max-width: 992px) {
    #main-nav {
        padding: 8px 0;
    }
    
    .logo svg,
    .logo img {
        max-width: 200px;
        height: auto;
    }
    
    .container {
        padding: 0 15px;
    }
}

@media (max-width: 768px) {
    .logo svg,
    .logo img {
        max-width: 160px;
    }
    
    #main-nav .container {
        padding: 0 10px;
    }
}

@media (max-width: 576px) {
    .logo svg,
    .logo img {
        max-width: 140px;
    }
    
    /* 确保移动端菜单按钮和语言切换器对齐 */
    #main-nav .container {
        padding: 0 8px;
    }
    
    .mobile-menu-btn,
    .mobile-language-switch {
        margin: 0 3px;
    }
}

/* APP下载 - TikTok风格 */
.download-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.download-text {
    flex: 1;
    min-width: 300px;
    margin-right: 40px;
}

.download-text h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--white);
    text-shadow: 0 0 10px rgba(255, 0, 80, 0.3);
}

.download-text p.download-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 30px;
}

.download-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    color: var(--white);
}

.feature-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.download-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.btn-download {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    color: var(--white);
}

.btn-download.apple {
    background-color: var(--white);
    color: var(--black) !important;
}

.btn-download.android {
    background-color: #3ddc84;
}

.btn-download.h5 {
    background-color: var(--primary-color);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-download .download-text p {
    font-size: 0.8rem;
    margin: 0;
}

.btn-join {
    width: 100%;
    text-align: center;
    padding: 15px;
    font-size: 1.1rem;
}

.download-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.download-image img {
    max-width: 100%;
    height: auto;
}

/* 底部悬浮下载按钮 - TikTok风格 */
#floating-download {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    box-shadow: 0 -4px 20px rgba(255, 0, 80, 0.2);
    z-index: 997;
    padding: 15px 0;
    transform: translateY(100%);
    transition: var(--transition);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

#floating-download.show {
    transform: translateY(0);
}

.floating-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.btn-floating {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    color: var(--white);
    font-size: 0.9rem;
}

.btn-floating.apple {
    background-color: var(--white);
    flex: 1;
    min-width: 150px;
    justify-content: center;
    color: var(--black) !important;
}

.btn-floating.android {
    background-color: #3ddc84;
    flex: 1;
    min-width: 150px;
    justify-content: center;
}

.btn-floating.h5 {
    background-color: var(--primary-color);
    flex: 1;
    min-width: 150px;
    justify-content: center;
}

.btn-floating.join {
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    flex: 1;
    min-width: 150px;
    justify-content: center;
}

.btn-floating:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}



/* 响应式设计 - TikTok风格优化 */
@media (max-width: 1200px) {
    /* 调整桌面端菜单间距和字体大小 */
    .desktop-menu {
        margin: 0 20px;
    }
    
    .desktop-menu ul li {
        margin: 0 15px;
    }
    
    .desktop-menu ul li a {
        font-size: 14px;
    }
    
    /* 其他响应式设计 */
    .countries-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    /* 隐藏桌面端菜单，显示移动端菜单按钮 */
    .desktop-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    /* 在移动端隐藏顶部的语言选择器 */
    .language-switch {
        display: none;
    }
    
    /* 其他响应式设计 */
    .section-header h2 {
        font-size: 2rem;
    }
    
    .carousel-caption h2 {
        font-size: 2rem;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .about-text {
        margin-right: 0;
        margin-bottom: 40px;
    }
    
    .countries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .business-modes {
        grid-template-columns: 1fr;
    }
    
    .download-content {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    /* 调整顶部通知栏动画速度 */
    .notification-content {
        animation: scroll 20s linear infinite;
        font-size: 13px;
    }
    
    /* 调整导航栏位置和高度 */
    #main-nav {
        top: 36px;
        padding: 10px 0;
    }
    
    #mobile-menu {
        top: 86px;
    }
    
    /* 调整logo大小 */
    .logo img {
        height: 35px;
    }
    
    /* 调整移动端菜单样式 */
    #mobile-menu ul li a {
        padding: 12px 20px;
        font-size: 15px;
    }
    
    /* 调整移动端语言选择器样式 */
    .mobile-language-switch {
        display: block;
        padding: 12px 20px 15px;
    }
    
    .mobile-language-switch select {
        padding: 8px 30px 8px 12px;
        font-size: 14px;
    }
    
    /* 隐藏桌面端菜单，显示移动端菜单按钮和语言选择器 */
    .desktop-menu {
        display: none;
    }
    
    .language-switch {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
        margin-right: 10px;
    }
    
    .mobile-language-switch {
        display: block;
    }
    
    /* 顶部宣传区域优化 */
    #hero-section {
        height: 50vh;
    }
    
    .hero-content h2 {
        font-size: 2.2rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .hero-content .btn-primary {
        font-size: 1rem;
        padding: 12px 30px;
    }
    
    /* 区块间距优化 */
    .section {
        padding: 60px 0;
    }
    
    /* 支持站点优化 */
    .countries-grid {
        grid-template-columns: 1fr;
    }
    
    /* 全球生意增长专区优化 */
    .growth-stories {
        flex-direction: column;
    }
    
    /* 底部悬浮按钮优化 */
    .btn-floating {
        flex: 100%;
        margin-bottom: 10px;
    }
    
    /* 下载区域优化 */
    .download-text {
        margin-right: 0;
        margin-bottom: 40px;
        text-align: center;
    }
    
    .download-features {
        justify-content: center;
    }
    
    .download-buttons {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    /* 顶部通知栏优化 */
    #notification-bar {
        padding: 8px 0;
    }
    
    .notification-content {
        font-size: 12px;
        animation: scroll 18s linear infinite;
    }
    
    /* 导航栏优化 */
    #main-nav {
        top: 32px;
        padding: 8px 0;
    }
    
    #mobile-menu {
        top: 80px;
    }
    
    /* logo优化 */
    .logo img {
        height: 30px;
    }
    
    /* 移动端菜单按钮优化 */
    .mobile-menu-btn {
        font-size: 20px;
        padding: 3px;
    }
    
    /* 移动端语言选择器优化 */
    .mobile-language-switch select {
        font-size: 13px;
    }
    
    /* 区块标题优化 */
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    /* 顶部宣传区域优化 */
    #hero-section {
        height: 45vh;
    }
    
    .hero-content h2 {
        font-size: 1.8rem;
    }
    
    .hero-content p {
        font-size: 0.95rem;
    }
    
    .hero-content .btn-primary {
        font-size: 0.9rem;
        padding: 10px 25px;
        letter-spacing: 0.5px;
    }
    
    /* 装饰元素调整 */
    .hero-decoration {
        width: 200px;
        height: 200px;
    }
    
    .hero-decoration:nth-child(1) {
        top: -100px;
        left: -100px;
    }
    
    .hero-decoration:nth-child(2) {
        bottom: -100px;
        right: -100px;
    }
    
    /* 关于我们统计数据优化 */
    .about-stats {
        flex-direction: column;
    }
    
    .stat-item {
        margin-bottom: 15px;
    }
    
    /* 下载特性优化 */
    .download-features {
        grid-template-columns: 1fr;
    }
}

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

.section {
    animation: fadeIn 0.8s ease-out;
}

.btn-primary {
    display: inline-block;
    background: white;
    color: #ff2d55;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    text-align: center;
    cursor: pointer;
}

.btn-primary:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn-sm {
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
    width: 100%;
}

/* 返回顶部按钮样式 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 4px 15px rgba(255, 0, 80, 0.3);
}

/* 显示返回顶部按钮 */
.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 隐藏时的位置 */
.back-to-top:not(.show) {
    transform: translateY(20px);
}

/* 悬停效果 */
.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(255, 0, 80, 0.4), 0 4px 10px rgba(37, 244, 238, 0.3);
    background: linear-gradient(135deg, #ff2d55, #25f4ee);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
        font-size: 16px;
    }
}

@media (max-width: 576px) {
    .back-to-top {
        width: 40px;
        height: 40px;
        bottom: 15px;
        right: 15px;
        font-size: 14px;
    }
}