:root{--ink:#25282d;--muted:#58616a;--line:#d9dfe3;--paper:#fff;--soft:#f2f5f6;--blue:#365e70;--plum:#79505d;--serif:Georgia,'Times New Roman','Songti SC',serif;--sans:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;color:var(--ink);font-family:var(--sans);font-size:16px;background:var(--paper);font-synthesis:none}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-underline-offset:5px}a:hover{color:var(--blue)}button,input,select{font:inherit}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #a96b20;outline-offset:5px}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-weight:500}p,li{line-height:1.8}p{margin-bottom:1.2rem}h1{font-size:clamp(2.7rem,5.1vw,4.8rem);line-height:1.08;letter-spacing:-.045em}h2{font-size:clamp(2rem,3vw,2.8rem);line-height:1.16;letter-spacing:-.035em}h3{font-size:1.25rem;line-height:1.4;letter-spacing:-.01em}em{font-family:var(--serif);font-weight:400}html[lang=zh-CN] h1{line-height:1.25;letter-spacing:-.025em}html[lang=zh-CN] h2{line-height:1.4}html[lang=zh-CN] em{font-style:normal}.shell{width:min(1220px,calc(100% - 96px));margin-inline:auto}.site-skip{position:fixed;top:-100px;left:16px;background:#fff;padding:16px;z-index:100}.site-skip:focus{top:8px}.site-header{border-bottom:1px solid var(--line);background:white}.site-header-inner{display:flex;align-items:center;justify-content:space-between;gap:30px;min-height:104px}.site-brand{display:flex;align-items:center;gap:24px;text-decoration:none}.wordmark{font:3.1rem/1 var(--serif);letter-spacing:-.055em;color:var(--ink)}.brand-description{font-size:.8rem;line-height:1.5;border-left:1px solid var(--line);padding-left:22px;color:var(--muted)}.site-nav{display:flex;align-items:center;gap:26px;font-size:.9rem;flex-wrap:wrap}.site-nav a{text-decoration:none;padding:8px 0;white-space:nowrap}.site-nav a[aria-current=page]{border-bottom:1px solid var(--ink)}.site-nav .language{border-left:1px solid var(--line);padding-left:22px}.site-nav .nav-email{font-weight:600;color:var(--blue)}.eyebrow{font-size:.75rem;line-height:1.6;letter-spacing:.13em;text-transform:uppercase;font-weight:600;color:var(--blue);margin-bottom:22px}.home-hero{display:grid;grid-template-columns:1.4fr 1fr;gap:10%;padding-block:88px 74px;border-bottom:1px solid var(--line)}.home-hero h1{margin-bottom:28px}.home-hero em{color:var(--blue)}.lede{font-size:1.1rem;line-height:1.8;color:var(--muted);max-width:650px}.home-hero 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small{display:block;font-size:.88rem;line-height:1.65;margin-top:7px;color:var(--muted)}.index-row>span:last-child{font-size:1.2rem;color:var(--blue)}.section{padding-block:76px;border-bottom:1px solid var(--line);scroll-margin-top:25px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:32px}.section-head h2{margin:0}.section-head>p{max-width:400px;color:var(--muted);margin:0}.service-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}.service-card{padding:32px;background:var(--soft);border-top:3px solid var(--blue);display:flex;flex-direction:column}.service-card.org{border-top-color:var(--plum);background:#f7f3f4}.service-card .eyebrow{margin:0 0 22px}.service-card.org .eyebrow{color:var(--plum)}.service-card h3{font-size:1.7rem;line-height:1.3;max-width:400px}.service-card>p{color:var(--muted)}.service-card .service-offer{border-top:1px solid var(--line);padding-top:22px;margin-top:auto;font-size:.95rem}.service-card a{align-self:start}.band{background:var(--soft)}.library-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.library-card{border-top:1px solid var(--line);padding:24px 0 0}.library-card .count{font:2.7rem/1.1 var(--serif);color:var(--blue);margin-bottom:20px}.library-card h3{font-size:1.35rem}.library-card p{color:var(--muted)}.notes-list{border-top:1px solid var(--line)}.note-row{display:grid;grid-template-columns:190px 1fr 26px;gap:30px;padding:28px 0;border-bottom:1px solid var(--line);text-decoration:none}.note-row .note-type{font-size:.85rem;color:var(--muted);line-height:1.7;padding-top:5px}.note-row h3{font-size:1.4rem;margin-bottom:8px}.note-row p{color:var(--muted);margin:0;max-width:760px}.note-row .row-arrow{font-size:1.25rem}.about-layout{display:grid;grid-template-columns:1fr 1.5fr;gap:12%}.about-copy{max-width:710px}.about-copy .lede{font-size:1.3rem;color:var(--ink)}.contact{padding:65px 0}.contact-inner{display:flex;justify-content:space-between;align-items:center;gap:40px}.contact h2{font-size:2.3rem;max-width:650px;margin:0 0 20px}.contact p{color:var(--muted);max-width:650px}.email{overflow-wrap:anywhere}.site-footer{background:white;padding:30px 0;color:var(--muted);font-size:.85rem;border-top:1px solid var(--line)}.footer-inner{display:flex;justify-content:space-between;align-items:start;gap:24px}.footer-inner strong{display:block;font-weight:500;color:var(--ink);margin-bottom:6px}.footer-links{display:flex;gap:20px;flex-wrap:wrap}.footer-links a{text-decoration:none}.page-hero{padding-block:58px 48px;border-bottom:1px solid var(--line)}.breadcrumb{font-size:.85rem;color:var(--muted);margin-bottom:36px}.page-hero h1{max-width:940px;font-size:clamp(2.6rem,4.8vw,4.3rem);margin-bottom:25px}.page-hero h1 em{color:var(--accent,var(--blue))}.page-hero .eyebrow{color:var(--accent,var(--blue))}.service-layout{display:grid;grid-template-columns:1.25fr 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blockquote{font-family:var(--serif);font-size:1.7rem;line-height:1.5;margin:0 0 18px}.small{font-size:.85rem;color:var(--muted)}.comparison{display:grid;grid-template-columns:1fr 1fr;gap:30px}.comparison>div{border-top:1px solid var(--line);padding-top:22px}.comparison p{color:var(--muted)}.reading-head{max-width:900px;padding-top:60px}.reading-head h1{font-size:clamp(2.6rem,4.5vw,4rem);line-height:1.15}.reading-head .lede{max-width:800px}.article-layout{display:grid;grid-template-columns:210px minmax(0,720px);gap:70px;padding-block:40px 80px;justify-content:start}.article-aside{color:var(--muted);font-size:.85rem;line-height:1.8}.article-aside p{margin-bottom:22px}.prose{font-size:1.075rem;line-height:1.85;min-width:0}.prose h2{font-size:1.65rem;line-height:1.35;margin:36px 0 17px;letter-spacing:-.02em}.prose h2:first-child{margin-top:0}.prose blockquote{border-left:2px solid var(--blue);padding-left:24px;margin:30px 0;font:1.5rem/1.5 var(--serif)}.prose ul{padding-left:24px}.source-box{border-top:1px solid var(--line);padding-top:24px;margin-top:35px;font-size:.9rem;color:var(--muted)}.source-box a{overflow-wrap:anywhere}.notice{padding:24px;border-left:2px solid var(--blue);background:var(--soft)}.back-link{display:inline-block;margin-top:28px;font-size:.9rem}.site-header .site-brand:hover{color:var(--ink)}.home-hero,.service-grid,.work-grid,.article-layout,.split,.contact-inner>*{min-width:0}
@media(max-width:1050px){.shell{width:calc(100% - 56px)}.site-header-inner{gap:18px}.brand-description{display:none}.site-nav{gap:20px}.home-hero{gap:7%;grid-template-columns:1.2fr 1fr}.service-layout{gap:5%}.article-layout{grid-template-columns:160px minmax(0,720px);gap:40px}.steps.five{grid-template-columns:repeat(3,1fr)}}
@media(max-width:740px){.shell{width:calc(100% - 36px)}.site-header-inner{flex-wrap:wrap;padding-block:18px;gap:18px}.site-brand{flex:1}.wordmark{font-size:2.5rem}.brand-description{display:block;font-size:.75rem;padding-left:17px}.site-nav{width:100%;gap:20px;font-size:.875rem}.site-nav .language{padding-left:17px;margin-left:auto}.site-nav .nav-email{display:none}.home-hero{grid-template-columns:1fr;gap:36px;padding-block:42px}.home-hero h1{font-size:3.15rem}.hero-index{padding-top:0}.index-row{padding-block:18px}.hero-index>p{margin-bottom:14px}.section{padding-block:46px}.section-head{display:block;margin-bottom:25px}.section-head>p{margin-top:20px}.service-grid,.library-grid,.service-layout,.split,.about-layout{grid-template-columns:1fr;gap:28px}.service-card{padding:25px}.library-grid{gap:24px}.library-card{display:grid;grid-template-columns:64px 1fr;gap:0 16px}.library-card .count{grid-row:1/4;font-size:2.3rem}.library-card h3{margin-bottom:12px}.library-card p{margin-bottom:14px}.library-card a{grid-column:2}.work-grid{grid-template-columns:1fr 1fr;gap:24px}.steps,.steps.five{grid-template-columns:1fr 1fr;gap:22px}.note-row{grid-template-columns:1fr 22px;gap:8px 14px;padding-block:23px}.note-row .note-type{grid-column:1/-1;padding:0}.note-row h3{font-size:1.3rem}.note-row p{font-size:.95rem}.contact-inner{display:block}.contact{padding-block:40px}.footer-inner{display:block}.footer-links{margin-top:24px}.page-hero{padding-block:32px}.page-hero h1{font-size:2.9rem}.breadcrumb{margin-bottom:27px}.reading-head{padding-top:32px}.article-layout{grid-template-columns:1fr;gap:20px;padding-top:24px}.article-aside{border-bottom:1px solid var(--line)}.article-aside p{margin-bottom:16px}.prose{font-size:1.05rem}.comparison{gap:20px}.comparison h3{font-size:1.1rem}.reading-head h1{font-size:2.5rem}.offer-box{padding:24px}.sample{padding-left:20px}}
@media(max-width:400px){.site-nav{gap:14px}.site-nav .language{padding-left:12px}.work-grid{grid-template-columns:1fr}.home-hero h1{font-size:2.8rem}.button{gap:15px}.brand-description{font-size:.7rem}.comparison{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
@media print{.site-header,.site-footer,.site-skip,.actions,.breadcrumb,.contact,.back-link{display:none!important}.shell{width:100%;max-width:none}.home-hero,.section,.page-hero{padding-block:20px}.service-grid,.library-grid,.split,.service-layout,.article-layout,.about-layout{display:block}.service-card,.offer-box,.work-item,.note-row{break-inside:avoid;margin-bottom:20px}.article-aside{display:none}body{font-size:11pt}.prose{font-size:11pt}h1,.home-hero h1,.page-hero h1,.reading-head h1{font-size:30pt}h2{font-size:22pt}p{line-height:1.6}.band,.service-card,.offer-box{background:none}.hero-index{display:none}}
/* Book introductions */
html[lang="zh-CN"] .home-hero h1{font-size:clamp(2rem,4.1vw,3.7rem);letter-spacing:-.035em}
.book-byline{display:block;font-size:.875rem;letter-spacing:.02em;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:26px}
.book-figure{margin:28px 0 36px;break-inside:avoid}.book-figure img{display:block;width:100%;height:auto}.book-figure figcaption{font-size:.8rem;line-height:1.65;color:var(--muted);margin-top:14px}.book-figure figcaption a{text-underline-offset:3px}
.habits-map{border:2px solid #577c89;border-radius:12px;overflow:hidden;background:#f5f8f9;font-size:.95rem;line-height:1.5}.renewal-head{display:flex;gap:17px;align-items:center;padding:22px 24px;background:#285166;color:white}.renewal-head strong{font-size:1.15rem}.renewal-head small{display:block;font-size:.82rem;opacity:.9;margin-top:3px}.habit-number{font-variant-numeric:tabular-nums;font-family:var(--serif);font-size:1.7rem;line-height:1.2;color:#285166}.renewal-head .habit-number{color:white;font-size:2.3rem}.maturity-stage{text-align:center;padding:20px 14px 12px;font-weight:600;letter-spacing:.04em}.maturity-stage span{display:block;line-height:1;margin-bottom:10px;color:#577c89;font-size:1.4rem}.habit-group{margin:0 22px;padding:14px 18px 18px;background:white;border:1px solid #d6e1e6;border-radius:8px}.group-label{font-size:.75rem;letter-spacing:.065em;text-transform:uppercase;color:#285166;margin:0 0 15px!important}.habit-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.habit-mini{display:flex;flex-direction:column;gap:10px}.habit-mini strong{font-weight:500;font-size:.9rem;line-height:1.5}.habit-group.public{background:#f4eff3;border-color:#e2d9df}.public .group-label,.public .habit-number{color:#725163}.stage-last{padding-bottom:24px}.renewal-foot{text-align:center;font-size:.76rem;border-top:1px solid #c9d8df;padding:14px 18px;margin:0!important;color:#285166}.habit-details{padding-left:27px}.habit-details li{padding:4px 0 16px 10px}.habit-details li::marker{color:#285166;font-variant-numeric:tabular-nums}.prose h3{font-size:1.15rem;margin:26px 0 10px;line-height:1.5}.habit-details h3{margin:0 0 9px}.habit-details h3 small{display:block;font-family:var(--sans);font-size:.85rem;font-weight:400;color:var(--muted);margin-top:4px}.habit-details p{margin-bottom:0}.spiral-key{display:flex;flex-wrap:wrap;gap:10px 18px;list-style:none;margin:0;padding:18px 0;border-bottom:1px solid var(--line);font-size:.82rem}.spiral-key li{display:flex;gap:7px;align-items:center}.spiral-key span{display:inline-flex;justify-content:center;align-items:center;border:1px solid #285166;color:#285166;border-radius:50%;width:24px;height:24px;flex-shrink:0;line-height:1}.principles-steps{padding-left:25px}.principles-steps li{padding-left:8px;margin-bottom:14px}.principles-steps li::marker{color:var(--blue);font-weight:600}.principles-steps p{margin:3px 0 0}.video-link{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0;margin-top:32px}.video-link h2{margin:0 0 12px!important;font-size:1.3rem}.video-link p{font-size:.95rem}.video-link a{font-size:.95rem;text-underline-offset:5px}.munger-portrait{max-width:420px}.munger-portrait img{border-radius:8px}.prose .small{display:block;margin-top:8px}.source-box ul{padding-left:20px}.source-box li{margin:7px 0}
@media(max-width:480px){.habit-cards{grid-template-columns:1fr;gap:15px}.habit-mini{flex-direction:row;gap:14px;align-items:baseline}.habit-number{min-width:28px;font-size:1.4rem}.habit-mini strong{font-size:.94rem}.habit-group{margin:0 14px;padding:14px}.renewal-head{padding:18px}.renewal-head small{font-size:.76rem}.habit-details{padding-left:23px}.habit-details li{padding-left:5px}.spiral-key{gap:10px 14px}}
@media print{.habits-map,.spiral-figure{-webkit-print-color-adjust:exact;print-color-adjust:exact}.book-figure{max-width:550px}.munger-portrait{max-width:280px}.habit-details li{break-inside:avoid}}