/* 基础重置 */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background: #000 url('/skin/img/banner20260411XOvgvU.webp') no-repeat center top fixed;
    background-size: cover;
    color: #fff;
    font-family: "Microsoft YaHei", sans-serif;
    min-height: 100vh;
    position: relative;
}
a {
    color: #fff;
    text-decoration: none;
}

body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 15, 0.75);
    z-index: 0;
}

/* 顶部装饰 */
.top-gold-bar {
    height: 4px;
    background: linear-gradient(90deg, #d4af37, #f9e29c, #d4af37);
    position: fixed;
    top: 0; width: 100%; z-index: 100;
}

.main-header {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 30px 0;
}

.main-logo {
    height: 100px;
    filter: drop-shadow(0 0 10px rgba(212, 175, 55, 0.5));
}

/* 侧边栏样式 */
.sidebar-left, .sidebar-right {
    position: fixed;
    top: 150px;
    z-index: 50;
    background: rgba(20, 20, 25, 0.9);
    border: 1px solid #d4af37;
    padding: 10px;
}

.sidebar-left { left: 10px; border-radius: 8px; width: 180px; }
.sidebar-right { right: 10px; border-radius: 8px; width: 160px; text-align: center; }

.cs-header {
    background: linear-gradient(#f9e29c, #d4af37);
    color: #000;
    font-weight: bold;
    padding: 5px;
    text-align: center;
    margin-bottom: 10px;
}

.cs-avatar { width: 100%; border: 1px solid #333; margin-bottom: 10px; }
.qr-group img { width: 100px; height: 100px; display: block; margin: 5px auto; }
.qr-group span { font-size: 12px; color: #d4af37; }

/* 主体容器 */
.content-wrapper {
    position: relative;
    z-index: 10;
    max-width: 1100px;
    margin: 0 auto;
    background: rgba(25, 25, 30, 0.85);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 0 50px rgba(0,0,0,0.8);
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.gold-title {
    text-align: center;
    color: #f9e29c;
    font-size: 32px;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.intro-text p {
    line-height: 1.8;
    margin-bottom: 20px;
    text-indent: 2em;
    color: #e0e0e0;
}

/* 卡片导航 */
.card-navigation {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin-top: 50px;
}

.nav-card {
    flex: 1;
    background: #1a1a1a;
    border: 1px solid #444;
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-card:hover {
    transform: translateY(-5px);
    border-color: #d4af37;
}

.card-preview {
    height: 140px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.card-preview img { max-width: 90%; max-height: 90%; }

.reg-form input {
    width: 80%;
    background: #000;
    border: 1px solid #d4af37;
    color: #fff;
    margin-bottom: 5px;
    padding: 5px;
    font-size: 12px;
}

.card-btn {
    background: linear-gradient(180deg, #f9e29c 0%, #d4af37 100%);
    color: #000;
    text-align: center;
    padding: 10px 0;
    font-weight: bold;
    font-size: 16px;
}

/* 页脚 */
.main-footer {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 50px 0;
    margin-top: 30px;
}

.bank-logos img {
    height: 35px;
    margin: 0 15px;
    opacity: 0.8;
}

.copyright {
    margin-top: 20px;
    font-size: 12px;
    color: #666;
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .sidebar-left, .sidebar-right { display: none; }
    .card-navigation { flex-wrap: wrap; }
    .nav-card { flex: 0 0 48%; margin-bottom: 15px; }
}