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/* Yufen Notes reference layout */
.site-header{height:72px;background:var(--card)}.site-header-inner{max-width:1180px}.site-logo{font-size:25px}.desktop-nav{margin-left:auto;margin-right:22px;gap:38px;font-size:15px}.desktop-nav a{height:72px;display:flex;align-items:center;position:relative}.desktop-nav a.current,.desktop-nav .current-menu-item>a{color:var(--orange)}.desktop-nav a.current:after,.desktop-nav .current-menu-item>a:after{content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;background:var(--orange)}.notes-hero{height:470px;position:relative;overflow:hidden;background:#f7f2eb}.notes-hero-bg{position:absolute;inset:0;background-image:linear-gradient(90deg,#f8f4ed 0%,rgba(248,244,237,.96) 34%,rgba(248,244,237,.18) 58%),url('../hero-workspace.png');background-size:cover;background-position:center}.notes-hero-copy{position:relative;z-index:1;max-width:1180px;margin:auto;padding:55px 20px}.notes-hero h1{font-size:43px;line-height:1.25;margin:0 0 12px}.notes-hero h1:after{content:'•';color:var(--orange);font-size:35px;margin-left:5px}.notes-hero h2{font-size:18px;font-weight:500;margin:0 0 30px}.notes-hero p{font-size:15px;line-height:1.85;margin:0 0 18px}.notes-hero .button-primary{margin-top:7px;padding:12px 20px}.notes-section{max-width:1180px;margin:auto;padding:42px 20px 0}.notes-section>header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.notes-section>header h2,.recent-posts>h2,.about-yufen>h2{font-size:21px;margin:0}.notes-section>header>a{font-size:13px;color:var(--muted)}.notes-featured-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}.notes-featured-grid .post-card{border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:0 3px 12px rgba(24,24,27,.035)}.notes-featured-grid .post-card-cover img,.notes-featured-grid .auto-cover{aspect-ratio:1.75/1}.notes-featured-grid .post-card-copy{padding:18px}.notes-featured-grid .post-card h3{font-size:19px}.notes-featured-grid .post-summary{font-size:13px}.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.topic-grid article{min-height:210px;border:1px solid var(--line);border-radius:8px;padding:20px;background:var(--card);box-shadow:0 3px 12px rgba(24,24,27,.025)}.topic-grid article>span{width:44px;height:44px;border:1px solid var(--orange);color:var(--orange);border-radius:50%;display:grid;place-items:center;font-weight:700}.topic-grid h3{font-size:18px;margin:15px 0 5px}.topic-grid p{font-size:13px;line-height:1.65;margin:0;color:var(--text)}.topic-grid a{display:inline-block;margin-top:15px;color:var(--orange);font-size:13px}.notes-bottom{display:grid;grid-template-columns:1fr 300px;gap:70px;padding-bottom:50px}.recent-posts>h2{margin-bottom:18px}.recent-posts>a:not(.all-posts-button){display:grid;grid-template-columns:minmax(0,1fr) 80px 60px 55px;gap:16px;align-items:center;height:56px;border-bottom:1px solid var(--line)}.recent-posts>a>b{font-size:15px;font-weight:500}.recent-posts>a>span,.recent-posts>a>time{font-size:12px;color:var(--muted)}.recent-posts>a>img,.mini-cover{display:block;width:55px;height:38px;border-radius:5px;object-fit:cover;background:#e5e7eb}.mini-cover.cover-amazon{background:#f4d8bd}.mini-cover.cover-ai{background:#17283a}.mini-cover.cover-business{background:#ded8cc}.mini-cover.cover-growth{background:#d9d0c0}.all-posts-button{display:block;width:max-content;margin:18px auto 0;border:1px solid var(--line);border-radius:6px;padding:8px 14px;font-size:12px}.about-yufen{border:1px solid var(--line);border-radius:8px;padding:22px;background:var(--card);align-self:start}.about-yufen p{font-size:13px;line-height:1.7}.about-yufen>div{display:flex;align-items:center;gap:14px;margin-top:18px}.about-yufen img{width:78px;height:78px;background:#fff}.about-yufen span{font-size:11px;line-height:1.6;color:var(--muted)}.site-footer{max-width:1180px;padding:28px 20px 42px;display:flex;align-items:center;gap:14px}.site-footer>div:first-child{display:flex;flex-direction:row;align-items:center;gap:20px}.site-footer>div:nth-child(2){display:none}.site-footer>div:nth-child(3){margin-left:auto;display:flex;flex-direction:row;gap:20px}.site-footer>div:nth-child(3) a:first-child,.site-footer>div:nth-child(3) a:nth-child(2){display:none}.site-footer>small{position:static;order:1;color:var(--muted)}.site-footer .site-logo{font-size:20px}.site-footer>div:first-child p{display:none}.site-footer>div:nth-child(3){order:2}.site-footer>div:first-child{order:0}.site-footer>small:before{content:'© '}.site-footer>small{font-size:12px}.site-footer>div:nth-child(3):after{content:'联系我';font-size:12px;color:var(--muted)}
@media(max-width:800px){.notes-hero{height:auto;min-height:570px}.notes-hero-bg{background-image:linear-gradient(180deg,rgba(248,244,237,.98) 0%,rgba(248,244,237,.91) 55%,rgba(248,244,237,.15) 100%),url('../hero-workspace.png');background-position:68% center}.notes-hero-copy{padding:45px 20px 260px}.notes-hero h1{font-size:35px}.notes-hero h2{font-size:16px}.notes-hero p br{display:none}.notes-featured-grid,.topic-grid,.notes-bottom{grid-template-columns:1fr}.notes-featured-grid{gap:16px}.topic-grid{gap:12px}.topic-grid article{min-height:0}.notes-bottom{gap:35px}.recent-posts>a:not(.all-posts-button){grid-template-columns:minmax(0,1fr) 48px 45px}.recent-posts>a>span{display:none}.recent-posts>a>img,.mini-cover{width:45px;height:32px}.site-footer{margin:0 20px;padding-left:0;padding-right:0;flex-wrap:wrap}.site-footer>div:nth-child(3){width:100%;margin:8px 0 0}.desktop-nav{display:none}}

@media(max-width:800px){html,body{max-width:100%;overflow-x:hidden}.site-header,.site-header-inner{height:64px}.site-header-inner{padding:0 20px}.site-logo{font-size:22px}.header-tools .theme-toggle{display:none}.icon-button{min-width:44px;height:44px}.mobile-nav.is-open{top:64px}.mobile-nav a{min-height:44px;display:flex;align-items:center}.notes-hero{min-height:0;display:flex;flex-direction:column;padding:0}.notes-hero-bg{position:relative;order:2;width:100%;height:245px;inset:auto;background-image:url('../hero-workspace.png');background-size:cover;background-position:68% 60%}.notes-hero-copy{order:1;width:100%;padding:42px 20px 38px;background:#f8f4ed}.notes-hero h1{font-size:clamp(36px,9.5vw,40px);line-height:1.25;margin-bottom:12px}.notes-hero h2{font-size:16px;line-height:1.6;margin-bottom:24px}.notes-hero p{font-size:15px;line-height:1.8;margin-bottom:15px}.notes-hero .button-primary{min-height:44px;display:inline-flex;align-items:center}.notes-section{width:100%;padding:38px 20px 0}.notes-section>header{margin-bottom:18px}.notes-section>header h2,.recent-posts>h2,.about-yufen>h2{font-size:20px}.notes-featured-grid{grid-template-columns:1fr;gap:16px}.notes-featured-grid .post-card-cover img,.notes-featured-grid .auto-cover{width:100%;aspect-ratio:16/9;height:auto}.notes-featured-grid .post-card-copy{padding:17px}.notes-featured-grid .post-card h3{font-size:18px}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.topic-grid article{min-width:0;padding:17px;min-height:230px}.topic-grid article>span{width:42px;height:42px}.topic-grid h3{font-size:17px}.topic-grid p{font-size:13px;overflow-wrap:anywhere}.topic-grid a{min-height:44px;display:flex;align-items:center}.notes-bottom{grid-template-columns:minmax(0,1fr);gap:30px;padding-bottom:42px}.recent-posts>a:not(.all-posts-button){grid-template-columns:minmax(0,1fr) 44px;height:auto;min-height:58px;gap:12px}.recent-posts>a>b{font-size:14px;line-height:1.5}.recent-posts>a>span,.recent-posts>a>img,.recent-posts .mini-cover{display:none}.recent-posts>a>time{text-align:right}.all-posts-button{min-height:44px;display:flex;align-items:center}.about-yufen{width:100%;padding:20px}.about-yufen img{width:76px;height:76px;flex:0 0 76px}.site-footer{width:auto;max-width:none;margin:0 20px}.article-header h1{font-size:clamp(32px,8.7vw,38px);overflow-wrap:anywhere}.single-article{width:100%;max-width:100%;padding:34px 20px 75px}.article-layout{display:block}.entry-content{width:100%;max-width:100%;font-size:17px;line-height:1.8;overflow-wrap:anywhere}.entry-content img,.article-cover img{max-width:100%;height:auto}.entry-content table,.entry-content pre{display:block;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}.entry-content pre{white-space:pre}.entry-content iframe{max-width:100%}.article-cover{width:100%;max-width:100%}.author-card{width:100%}.copy-link{min-height:44px}.search-panel{max-width:calc(100vw - 40px)}.search-form button{min-height:44px}.search-form input{min-height:44px}}
@media(max-width:379px){.topic-grid{grid-template-columns:1fr}.topic-grid article{min-height:0}.notes-hero-copy{padding-left:20px;padding-right:20px}.notes-section{padding-left:20px;padding-right:20px}}