/* ===== 全局样式 ===== */
body {
    margin: 0;
    font-family: Arial, sans-serif;
    /* 背景图片设置 */
    background-image: url('../images/bg.jpg');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    color: #fff;                     /* 文字默认白色 */
    text-shadow: 2px 2px 4px rgba(0,0,0,0.9); /* 加强文字阴影，确保可读 */
}

/* ===== 头部导航 ===== */
.header {
    background-color: transparent;    /* 完全透明 */
    color: #fff;
    padding: 10px 0;
    border-bottom: 3px solid #f90;    /* 橙色下划线 */
}

.logo {
    text-align: center;
}

.logo img {
    max-height: 80px;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.logo img:hover {
    opacity: 1;
}

.nav {
    text-align: center;
    margin-top: 10px;
}

.nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 15px;
    font-size: 16px;
    padding: 5px 10px;
    text-shadow: 2px 2px 3px black;   /* 文字阴影 */
}

.nav a:hover {
    background-color: #f90;
    border-radius: 5px;
    color: #000;
    text-shadow: none;
}

/* ===== 轮播图区域 ===== */
.slider {
    text-align: center;
    background-color: transparent;
    padding: 20px 0;
}

.slider img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    /* 无阴影 */
}

/* ===== 醒目按钮区（完全透明背景）===== */
.promo-buttons {
    background-color: transparent;    /* 完全透明，无黑色底框 */
    padding: 20px 15px;
    text-align: center;
    margin: 20px auto;
    max-width: 1200px;
    border-radius: 8px;
    /* 无背景色，无阴影 */
}

/* 三张透明图片容器 */
.promo-images {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-bottom: 20px;
}

.transparent-img {
    opacity: 1;
    max-width: 280px;                  /* 可自行调整图片大小 */
    height: auto;
    transition: opacity 0.3s;
}

.transparent-img:hover {
    opacity: 0.8;
}

/* 按钮保留背景色 */
.promo-buttons a {
    display: inline-block;
    padding: 10px 30px;
    margin: 0 10px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: 0.3s;
    text-shadow: none;                 /* 按钮文字不需要阴影，背景色已足够 */
}

.btn-lanzou {
    background-color: #f90;
    color: #fff;
}

.btn-qq {
    background-color: #12b7f5;
    color: #fff;
}

.promo-buttons a:hover {
    opacity: 0.8;
    transform: scale(1.05);
}

/* ===== 开服表区域（完全透明背景）===== */
.server-list {
    max-width: 1200px;
    margin: 30px auto;
    background-color: transparent;    /* 完全透明 */
    padding: 20px;
    border-radius: 8px;
    /* 无背景色，无阴影 */
}

.server-list h2 {
    margin-top: 0;
    color: #f90;
    border-left: 5px solid #f90;
    padding-left: 15px;
    text-shadow: 2px 2px 3px black;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    color: #fff;
    background-color: transparent;    /* 表格背景透明 */
}

th {
    background-color: #f90;            /* 表头保留橙色背景 */
    color: #000;
    padding: 12px;
    font-size: 16px;
    text-shadow: none;
}

td {
    padding: 12px;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.3); /* 半透明白色分隔线 */
    text-shadow: 2px 2px 3px black;
}

.btn-download {
    background-color: #f90;
    color: #000;
    padding: 8px 20px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    display: inline-block;
    transition: 0.3s;
    text-shadow: none;
}

.btn-download:hover {
    background-color: #e80;
    transform: scale(1.05);
}

.hot {
    color: #ff6b6b;
    font-weight: bold;
    text-shadow: 2px 2px 3px black;
}

/* ===== 页脚（完全透明背景）===== */
.footer {
    background-color: transparent;    /* 完全透明 */
    color: #fff;
    text-align: center;
    padding: 20px;
    margin-top: 30px;
    font-size: 14px;
    text-shadow: 2px 2px 3px black;
}

.footer a {
    color: #f90;
    text-decoration: none;
    text-shadow: 2px 2px 3px black;
}

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