:root{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", "Helvetica Neue", Helvetica, Arial, "Noto Sans SC", "Noto Sans CJK SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "微软雅黑", Roboto, sans-serif;--post-body-font-size:20px;--post-h2-font-size:40px;--post-h3-font-size:28px;--post-h4-font-size:22px;--post-pre-font-size:16px;--post-body-line-height:1.85;--post-letter-spacing:.02em;--home-post-title-size:30px;--home-summary-font-size:19px;--timeline-card-title-size:20px}@media (max-width:768px){:root{--post-body-font-size:18px;--post-h2-font-size:28px;--post-h3-font-size:22px;--post-h4-font-size:19px;--post-pre-font-size:14px;--home-post-title-size:26px;--home-summary-font-size:17px;--timeline-card-title-size:18px}}:root{--bp-sm:640px;--bp-md:768px;--bp-lg:1024px}*,:before,:after{box-sizing:border-box}html{height:100%;overflow-x:hidden}body{min-height:100vh;min-height:100dvh;padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px);padding-bottom:env(safe-area-inset-bottom,0px);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility;margin:0;font-weight:400}#app{min-height:100vh;min-width:0;max-width:100%;min-height:100dvh}@media (max-width:768px){.page-header,.travel-header,.tags-header,.sparks-header,.header-main,.tags-header-main{min-width:0;max-width:100%}nav.category-nav{-webkit-overflow-scrolling:touch;overscroll-behavior-x:auto;touch-action:pan-x 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