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

body {
    width: 100%;
    height: 100vh;
    background: #000000;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    perspective: 1000px;
}

/* Emoji 容器 */
.emoji-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* 单个 Emoji */
.emoji {
    position: absolute;
    font-size: 3rem;
    text-shadow: 0 0 20px rgba(100, 150, 255, 0.3);
    filter: drop-shadow(0 0 8px rgba(100, 150, 255, 0.2));
    will-change: transform;
    opacity: 0.8;
    animation: float-up 8s infinite ease-in;
}

@keyframes float-up {
    0% {
        transform: translateY(100vh) translateX(0) rotateZ(0deg) scale(1);
        opacity: 0;
    }

    10% {
        opacity: 0.8;
    }

    75% {
        opacity: 0.8;
        transform: translateY(5vh) translateX(var(--x-offset, 50px)) rotateZ(270deg) scale(0.8);
    }

    100% {
        transform: translateY(-20vh) translateX(var(--x-offset, 50px)) rotateZ(360deg) scale(0.3);
        opacity: 0;
    }
}

/* 鼠标光晕效果 */
.mouse-light-effect {
    position: fixed;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(100, 180, 255, 0.4) 0%, rgba(100, 150, 255, 0.2) 40%, rgba(100, 150, 255, 0) 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 2;
    filter: blur(40px);
    transform: translate(-50%, -50%);
    box-shadow: 0 0 60px rgba(100, 180, 255, 0.3),
        inset 0 0 60px rgba(100, 180, 255, 0.2);
}

/* 内容容器 */
.content {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
    width: 90%;
    max-width: 900px;
}

/* 主文本样式 */
.main-text {
    font-size: clamp(2.5rem, 8vw, 5rem);
    color: #ffffff;
    font-weight: 600;
    letter-spacing: 0.05em;
    line-height: 1.3;
    cursor: default;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    background: linear-gradient(135deg, #ffffff 0%, #b4d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 40px rgba(100, 150, 255, 0.1);
    user-select: none;
    position: relative;
    display: inline-block;
}

/* 光标闪烁动画 */
.main-text::after {
    content: '|';
    position: absolute;
    right: -0.1em;
    animation: blink 1s infinite;
    background: linear-gradient(135deg, #ffffff 0%, #b4d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes blink {

    0%,
    49% {
        opacity: 1;
    }

    50%,
    100% {
        opacity: 0;
    }
}

/* 悬停文本变为按钮 */
.main-text:hover {
    font-size: clamp(2.5rem, 8vw, 5rem);
    opacity: 0;
    pointer-events: none;
}

/* WLB 按钮 */
.wlb-button {
    display: inline-block;
    margin: 0;
    padding: 14px 32px;
    font-size: clamp(0.85rem, 2vw, 1.2rem);
    color: #ffffff;
    background: linear-gradient(135deg, #006bb3 0%, #0090d9 100%);
    border: 2px solid rgba(100, 180, 255, 0.5);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    letter-spacing: 0.03em;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 0 30px rgba(100, 150, 255, 0.3),
        inset 0 0 20px rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    user-select: none;
    white-space: nowrap;
}

.wlb-button:hover {
    background: linear-gradient(135deg, #0080c0 0%, #00a8ff 100%);
    box-shadow: 0 0 50px rgba(100, 180, 255, 0.5),
        0 0 80px rgba(0, 150, 255, 0.3),
        inset 0 0 30px rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
    border-color: rgba(100, 200, 255, 0.8);
}

.wlb-button:active {
    transform: scale(0.98);
}

/* 按钮容器 - 并排显示 */
.button-container {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    margin: 0 auto;
    transform: translateY(-50%);
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
    flex-wrap: nowrap;
    z-index: 11;
    width: auto;
    max-width: 90%;
    padding: 10px 20px;
}

/* 跨境选品工具按钮 */
.cross-border-button {
    display: inline-block;
    margin: 0;
    padding: 14px 32px;
    font-size: clamp(0.85rem, 2vw, 1.2rem);
    color: #ffffff;
    background: linear-gradient(135deg, #7b2cbf 0%, #9d4edd 100%);
    border: 2px solid rgba(180, 130, 255, 0.5);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    letter-spacing: 0.03em;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 0 30px rgba(157, 78, 221, 0.3),
        inset 0 0 20px rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    user-select: none;
    white-space: nowrap;
}

.cross-border-button:hover {
    background: linear-gradient(135deg, #9d4edd 0%, #c77dff 100%);
    box-shadow: 0 0 50px rgba(157, 78, 221, 0.5),
        0 0 80px rgba(157, 78, 221, 0.3),
        inset 0 0 30px rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
    border-color: rgba(200, 150, 255, 0.8);
}

/* 科技背景网格线（可选装饰） */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(100, 150, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(100, 150, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
    animation: grid-move 10s linear infinite;
}

@keyframes grid-move {
    0% {
        background-position: 0 0;
    }

    100% {
        background-position: 50px 50px;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .emoji {
        font-size: 2rem;
    }

    .main-text {
        font-size: 2rem;
    }

    .wlb-button {
        font-size: 0.85rem;
        padding: 10px 20px;
    }
    
    .cross-border-button {
        font-size: 0.85rem;
        padding: 10px 20px;
    }
    
    .button-container {
        flex-wrap: wrap;
        gap: 12px;
        padding: 8px 15px;
    }
}

/* 禁用文本选择 */
.content {
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

/* 页脚 */
.footer {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    font-weight: 300;
    letter-spacing: 0.02em;
    z-index: 5;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    transition: color 0.3s ease;
}

.footer:hover {
    color: rgba(100, 180, 255, 0.8);
}