Japanese Self-Help Book Cover Mockup

A realistic 3D mockup of a softcover book standing upright at a slight angle on a plain off-white background, revealing both the front cover and the spine. The cover features a minimalist, serene illustration of a white arched doorway opening to a bright pastel sunrise over a calm sea, with a woman in a flowing white dress standing in the archway looking toward the horizon. Large, elegant vertical Japanese text in a Mincho serif font dominates the right and left sides of the arch, reading {argument name="main title" default="我慢をやめたら、人生が動き出した。"}. In the top left corner, smaller horizontal text reads {argument name="subtitle" default="自分の人生を取り戻す 7つのステップ"}. The bottom third of the book is wrapped in a light pink belly band. The band features a prominent horizontal catchphrase reading {argument name="obi catchphrase" default="もう、他人軸で生きなくていい。"}, with smaller text above it separated by a dotted line mentioning work, relationships, love, and future anxiety. On the right side of the band is a white circular badge with a small crown icon and text reading {argument name="sales badge text" default="累計 20万部 突破!"}. At the very bottom of the band are exactly 4 small rectangular boxes containing keywords about self-esteem, time management, mental organization, and ideal future, followed by the text "Everything will change!". The spine is white and displays the main title, subtitle, a placeholder for the author's name, and a placeholder for the publisher.