感谢版友们的回复。我用大家提到的关键字neo-noir查了一下，在英文的wikipedia上
的说明如下：（恕原文复制贴上，找不太到中文资料）
Neo-noir (English: New-black; from the Greek neo, new; and the French noir,
black) is a style often seen in modern motion pictures and other forms that
prominently use elements of film noir, but with updated themes, content,
style, visual elements or media that were absent in film noir of the 1940s
and 1950s.
The term film noir (French for "black film") was coined by critic Nino Frank
in 1946, but was rarely used by filmmakers, critics or fans until several
decades later. The classic era of film noir is usually dated to a period
between the early 1940s and the late 1950s. Typically American crime dramas
or psychological thrillers, films noir[a] had a number of common themes and
plot devices, and many distinctive visual elements. Characters were often
conflicted antiheroes, trapped in a difficult situation and making choices
out of desperation or nihilistic moral systems. Visual elements included
low-key lighting, striking use of light and shadow, and unusual camera
placement.
硬要翻译，好像可以把neo-noir翻成“新‧黑色电影”，在noir film中加入了一些
比较现代的主题、风格、和视觉效果。Noir film通常是犯罪片/心理惊悚片，
角色常常是反英雄，被困在艰难的处境中，做出一些绝望、无奈的选择。
电影色调暗、高反差，光影效果突出等。
这样看来，nior / neo nior的影片已经不多了，如果再加上和“侦探”相关，
那必然更加稀少。英文维基“List of neo-noir titles”的条目下有列一些片单，
有些我看过，根本和侦探无关，只是电影的剧情和拍摄风格被归在neo nior类型。
看来好像“冷硬派侦探片”真的比较少见。