/* 登录页与主页 */
.login-box, .home-box {
    max-width: 360px;
    margin: 12vh auto 0;
    background: #fff;
    border-radius: 10px;
    padding: 32px 28px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, .08);
}
.login-box h1, .home-box h1 { font-size: 22px; margin-bottom: 20px; text-align: center; }
.login-form { display: flex; flex-direction: column; gap: 12px; }
.login-input {
    padding: 10px 12px;
    border: 1px solid #d9dce1;
    border-radius: 6px;
    font-size: 14px;
}
.login-input:focus { outline: none; border-color: #4a7dff; }
.login-btn {
    padding: 10px 0;
    border: none;
    border-radius: 6px;
    background: #4a7dff;
    color: #fff;
    font-size: 14px;
}
.login-btn:hover { background: #3a6bef; }
.login-error { color: #d93025; font-size: 13px; min-height: 18px; }
.home-box p { margin-bottom: 16px; color: #666; }

/* 更新日志弹窗 */
.ul-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}
.ul-modal {
    width: min(560px, 92vw);
    max-height: 78vh;
    background: #fff;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, .2);
}
.ul-header {
    padding: 14px 20px;
    font-size: 16px;
    font-weight: bold;
    border-bottom: 1px solid #eef0f3;
}
.ul-body { overflow-y: auto; padding: 8px 20px; flex: 1; }
.ul-item { padding: 12px 0; border-bottom: 1px dashed #eef0f3; }
.ul-item:last-child { border-bottom: none; }
.ul-item-head { display: flex; align-items: center; gap: 8px; }
.ul-item-title { font-weight: bold; font-size: 14px; }
.ul-item-date { margin-left: auto; color: #999; font-size: 12px; }
.ul-item-content { margin-top: 6px; color: #555; font-size: 13px; line-height: 1.7; white-space: pre-wrap; }
.ul-badge {
    flex-shrink: 0;
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 10px;
    color: #fff;
    background: #999;
}
.ul-badge-feature { background: #4a7dff; }
.ul-badge-tech { background: #8e6ce0; }
.ul-badge-ui { background: #00b884; }
.ul-badge-fix { background: #f0942b; }

/* 弹窗底部：按钮固定在底部，已阅在右下角，始终可见 */
.ul-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    border-top: 1px solid #eef0f3;
    background: #fff;
}
.ul-btn {
    padding: 8px 18px;
    border-radius: 6px;
    font-size: 14px;
    border: 1px solid #d9dce1;
    background: #fff;
    color: #555;
}
.ul-btn-primary {
    background: #4a7dff;
    border-color: #4a7dff;
    color: #fff;
}
.ul-btn-primary:hover { background: #3a6bef; }