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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 50%, #ffab40 100%);
    min-height: 100vh;
    color: #333;
}

/* 微信提示遮罩 */
.wechat-tip {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 9999;
    text-align: right;
    padding: 20px;
}

.wechat-tip.show {
    display: block;
}

.tip-content {
    display: inline-block;
    text-align: center;
    color: #fff;
    margin-top: 20px;
    margin-right: 20px;
}

.tip-arrow {
    width: 0;
    height: 0;
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-bottom: 20px solid #fff;
    margin: 0 auto 15px;
    transform: rotate(-30deg);
}

.tip-text h3 {
    font-size: 20px;
    margin-bottom: 15px;
    font-weight: 600;
}

.tip-text p {
    font-size: 16px;
    margin: 8px 0;
    opacity: 0.95;
}

.menu-dots {
    display: inline-block;
    background: #fff;
    color: #333;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: bold;
}

/* 主容器 */
.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    gap: 30px;
}

/* LOGO 区域 */
.logo-section {
    text-align: center;
}

.logo {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
}

.logo img {
    width: 120px;
    height: 120px;
    border-radius: 24px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    object-fit: cover;
}

.logo-placeholder {
    display: none;
    width: 120px;
    height: 120px;
    align-items: center;
    justify-content: center;
    background: #fff;
    border-radius: 24px;
    font-size: 48px;
    font-weight: bold;
    color: #ff6b35;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.app-name {
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.app-slogan {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* 下载按钮区域 */
.download-section {
    text-align: center;
}

.download-btn {
    background: #fff;
    color: #ff6b35;
    border: none;
    padding: 16px 50px;
    font-size: 18px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
    transition: all 0.3s ease;
    min-width: 200px;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.download-btn:active {
    transform: translateY(0);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.download-hint {
    margin-top: 15px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

/* 特性展示 */
.features {
    display: flex;
    justify-content: space-around;
    width: 100%;
    gap: 20px;
}

.feature-item {
    flex: 1;
    text-align: center;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 12px 10px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.feature-icon {
    font-size: 28px;
}

.feature-item p {
    font-size: 14px;
    color: #fff;
    font-weight: 500;
}

/* 响应式适配 */
@media (max-width: 480px) {
    .container {
        padding: 15px;
        gap: 20px;
    }

    .logo {
        width: 100px;
        height: 100px;
    }

    .logo img {
        width: 100px;
        height: 100px;
        border-radius: 20px;
    }

    .logo-placeholder {
        width: 100px;
        height: 100px;
        border-radius: 20px;
        font-size: 40px;
    }

    .app-name {
        font-size: 28px;
    }

    .app-slogan {
        font-size: 14px;
    }

    .download-btn {
        padding: 12px 35px;
        font-size: 16px;
        min-width: 180px;
    }

    .features {
        gap: 10px;
    }

    .feature-item {
        padding: 10px 6px;
        border-radius: 10px;
    }

    .feature-icon {
        font-size: 22px;
    }

    .feature-item p {
        font-size: 12px;
    }
}