/* 登入按鈕 */
.login-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 140px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 500;
    border-radius: 6px;
    background: #00c300;
    color: #fff;
    text-decoration: none;
    z-index: 1000;
}
.login-btn img { height: 18px; margin-right: 6px; }

/* 已登入頭像 */
.user-container { position: fixed; top: 20px; right: 20px; display: flex; align-items: center; cursor: pointer; z-index: 1000; }
.user-avatar { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; margin-right: 8px; }
.user-name { font-size: 16px; font-weight: bold; }

/* 下拉選單 */
.dropdown-content { display: none; position: absolute; top: 50px; right: 0; background: #fff; min-width: 140px; box-shadow: 0 4px 12px rgba(0,0,0,0.15); border-radius: 8px; z-index: 1001; }
.dropdown-content a { display: block; padding: 10px; color: #333; text-decoration: none; }
.dropdown-content a:hover { background: #f0f0f0; border-radius: 6px; }
.show { display: block !important; }

/* 成為會員按鈕 */
.membership-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 6px;
    background-color: #00c300;
    color: #fff;
    text-decoration: none;
    transition: background 0.3s;
}
.membership-btn:hover { background-color: #00a300; }