/* ============================================================
 * 全局样式 — 所有页面共享
 * ============================================================ */

body {
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-image: url("/static/img/blue-guy.jpg");
    background-size: cover;
    background-color: #1d2838;
    padding-top: 60px;
}

/* 导航栏 */
.navbar .form-control,
.navbar .btn {
    height: 38px;
    padding: 0.375rem 0.75rem;
    font-size: 0.9rem;
    white-space: nowrap;
}

.navbar {
    backdrop-filter: blur(12px);
    background-color: rgba(42, 71, 94, 0.75);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    min-height: 60px;
}

/* 品牌色 */
.bg-color-darkblue  { background-color: #2a475e; }
.bg-color-darkerblue { background-color: #1d2838; }

/* 收件箱图标悬停 */
.link-hover-custom {
    --bs-icon-link-transform: translate3d(0, -0.2rem, 0);
    --bs-link-hover-color-rgb: 240, 192, 64;
}