/* 比奇堡研究基地：轻松、快乐、低饱和的统一视觉 */
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body{background:#f4faf7;color:var(--ink)}
.sidebar{background:#fffdf4;border-color:#e5ebe4}.brand{font-size:15px;color:#3e5963}.brand-mark{background:#f4d66f;color:#4d8fa0;border-radius:10px}.nav-item{color:#779096}.nav-item.active{background:#fff0ad;color:#3d91a4}.profile{border-color:#e7ebe3}
.content,#projects,#mood-journal,#skill-learning,#ai-assistant,#reading-log{background:linear-gradient(180deg,#f1faf9 0%,#fbfdf7 72%,#fff9e6 100%)}
.topbar{border-color:#dbe9e5}.panel,.journal-paper,.daily-recommend-card,.skill-path-card,.assistant-chat-panel,.assistant-context{box-shadow:0 10px 28px rgba(70,126,132,.07)}
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.projects-hero{background:#e6f5f2}.projects-hero img.project-cat{position:absolute;right:28px;bottom:9px;left:auto;top:auto;width:178px;height:178px;object-fit:cover;object-position:center;border-radius:35px;mix-blend-mode:multiply;filter:saturate(.82)}.projects-hero-copy{max-width:72%}
.journal-intro .cat-mood{width:105px;height:105px;margin-left:auto;margin-right:15px}.skill-direction-section{position:relative}.skill-direction-section .cat-skills{position:absolute;right:4px;top:18px;width:118px;height:118px}.skill-direction-section .learning-title{padding-right:135px}
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