/* 设置网页的基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body, html {
    height: 100%;
    font-family: Arial, sans-serif;
    overflow: hidden;
}

/* 背景图片全屏显示 */
.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://bing.img.run/m.php') no-repeat center center fixed;
    background-size: cover;
    z-index: -1;
    filter: brightness(0.7);
}

/* 顶部提示样式 */
.top-message {
    position: fixed;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 120, 200, 0.8);
    color: white;
    text-align: center;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: bold;
    border-radius: 5px;
    z-index: 1;
    border: 2px solid rgba(0, 120, 200, 1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.top-message:hover {
    background-color: rgba(0, 100, 180, 1);
    transform: translateX(-50%) scale(1.02);
}

/* 主容器，居中显示内容 */
.main-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
    color: white;
    padding: 20px;
    padding-bottom: 60px;
}

/* 一般项目业务内容样式 */
.business-scope {
    background-color: rgba(0, 80, 150, 0.75);
    color: white;
    padding: 15px 25px;
    border-radius: 10px;
    max-width: 800px;
    margin-bottom: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.business-scope h2 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #FFD700;
}

.business-scope p {
    font-size: 13px;
    line-height: 1.7;
}

/* Logo区域样式 */
.logo-area {
    margin-bottom: 30px;
}

.logo-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: fadeIn 1s ease-in-out;
}

.brand-name {
    font-size: 42px;
    font-weight: bold;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #FFD700, #FFA500, #FF6B00);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    animation: glow 2s ease-in-out infinite alternate;
}

.brand-sub {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 15px;
    font-weight: 500;
}

.tagline {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 3px;
}

/* 浮动动画 */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

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

/* 发光动画 */
@keyframes glow {
    from {
        filter: drop-shadow(0 0 10px rgba(255, 215, 0, 0.5));
    }
    to {
        filter: drop-shadow(0 0 20px rgba(255, 165, 0, 0.8));
    }
}

/* 信息文本样式 */
.info {
    font-size: 16px;
    margin-top: 20px;
    max-width: 800px;
    padding: 0 20px;
}

.info p {
    margin: 10px 0;
}

.info span {
    font-weight: bold;
}

/* 为文字加阴影 */
.info p, .info a {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    color: white;
}

/* 链接样式 */
.info a {
    color: #66CCFF;
    text-decoration: none;
    font-weight: bold;
}

.info a:hover {
    text-decoration: underline;
}

/* 服务声明样式 */
.service-statement {
    background-color: rgba(0, 100, 180, 0.85);
    color: white;
    padding: 20px 30px;
    font-size: 16px;
    margin-top: 30px;
    border-radius: 10px;
    width: 80%;
    max-width: 600px;
    text-align: center;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.service-statement:hover {
    background-color: rgba(0, 80, 160, 0.95);
    transform: scale(1.02);
}

.service-statement h2 {
    margin-bottom: 10px;
    font-size: 20px;
}

/* 底部云服务商支持信息 */
.aliyun-support {
    position: fixed;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
    z-index: 1;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    gap: 5px;
    background-color: rgba(0, 0, 0, 0.3);
    padding: 8px 15px;
    border-radius: 20px;
}

.txy-icon {
    width: 20px;
    height: 20px;
    vertical-align: middle;
    border-radius: 3px;
}

.tencent-cloud-link {
    color: #0099FF !important;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
}

.tencent-cloud-link:hover {
    color: #00CCFF !important;
    text-decoration: underline;
}

/* 响应式调整样式 */
@media (max-width: 768px) {
    .brand-name {
        font-size: 28px;
    }

    .brand-sub {
        font-size: 14px;
    }

    .business-scope {
        font-size: 12px;
        padding: 12px 20px;
    }
    
    .business-scope h2 {
        font-size: 16px;
    }

    .business-scope p {
        font-size: 12px;
    }

    .info {
        font-size: 14px;
    }

    .service-statement {
        font-size: 14px;
        width: 90%;
    }
    
    .aliyun-support {
        font-size: 11px;
        bottom: 10px;
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .brand-name {
        font-size: 20px;
    }

    .brand-sub {
        font-size: 12px;
    }

    .tagline {
        font-size: 12px;
    }

    .business-scope {
        font-size: 11px;
        padding: 10px 15px;
    }

    .info {
        font-size: 12px;
    }

    .service-statement {
        font-size: 13px;
        width: 95%;
    }
    
    .aliyun-support {
        font-size: 10px;
        bottom: 8px;
    }
}