:root{--foreground:#141516;--primary:#151617;--primary-foreground:#fff;--muted:#f3f3f3;--muted-foreground:#676b6e;--border:#dadbdd;--ring:#707878;--accent:#eeeeef;--accent-foreground:#121314;--card:#fff;--card-foreground:#151617;--popover:#fff;--popover-foreground:#151617;--input:#c8cacc;--secondary:#f2f3f3;--secondary-foreground:#151617;--brand:#60a92e}body{font-size:1rem;line-height:1.75}html{scroll-padding-top:100px}p{color:var(--muted-foreground)}h1,h2,h3{font-weight:500;letter-spacing:-.045em}em{font-family:var(--font-brand);font-style:normal;font-weight:inherit}.container{width:min(1280px,calc(100% - 112px))}.section{padding-block:100px}.section h2{font-size:clamp(2.5rem,4.5vw,4rem);font-weight:500;line-height:1.08}.credential-label,.eyebrow,.mono-label,.section-label{letter-spacing:.15em;line-height:1.7;font-size:.75rem;color:var(--muted-foreground)}.section-label{gap:24px;margin-bottom:34px}.eyebrow,.section-label>span{color:var(--muted-foreground)}.button{min-height:52px;padding:16px 23px;gap:30px;font-size:.875rem;font-weight:500;letter-spacing:.015em;border:1px solid transparent;transition:background .2s,border-color .2s,color .2s;transform:none!important}.button.light{background:var(--brand-tint);color:var(--ink)}.button.light:hover{background:#fff;border-color:white}.button.outline{background:transparent;border-color:var(--muted-foreground);color:white}.button.outline:hover{background:var(--ink);border-color:white}.button.primary{color:white}.button.primary,.button.primary:hover{background:var(--ink)}.text-link{border-color:var(--muted-foreground);font-size:.875rem;gap:18px;color:var(--ink)}.text-link:hover{color:var(--ink);border-color:var(--ink)}.site-header{background:#fff;border-bottom:1px solid var(--border);color:var(--ink)}.header-inner{height:80px}.desktop-nav{gap:35px;font-size:.875rem}.desktop-nav a:after{background:var(--ink)}.header-actions{font-size:.875rem;gap:25px}.locale-switch{font-size:.8125rem;color:var(--ink)}.header-contact{border-color:var(--muted-foreground);padding:9px 16px}.menu-toggle{color:var(--ink)}.mobile-nav a{border-color:var(--border)}.brand img{height:54px}.site-header .brand,.skip-link{color:var(--ink)}.identity-hero{background:var(--ink);color:var(--brand-tint);overflow:hidden}.identity-grid{display:grid;grid-template-columns:1.14fr .86fr;align-items:center;gap:80px;padding-block:48px 52px}.identity-copy{padding-block:30px}.identity-copy h1{font-size:clamp(4rem,7vw,6.5rem);font-weight:500;line-height:1.02;letter-spacing:-.06em;margin:28px 0 32px}.identity-description{color:var(--muted-foreground);font-size:1.0625rem;line-height:1.85;max-width:540px}.identity-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}.identity-actions .button{min-width:215px}.identity-role{color:var(--muted-foreground);font-size:.75rem;letter-spacing:.075em;margin-top:31px;line-height:1.8}.identity-book{width:100%;max-width:380px;justify-self:end}.identity-book>a{display:block}.identity-book img{width:100%;height:auto}.identity-book figcaption{color:var(--muted-foreground);display:flex;justify-content:space-between;gap:12px;font-size:.6875rem;letter-spacing:.09em;line-height:1.6;margin-top:17px}.credential-strip{background:var(--ink);color:var(--brand-tint);border-top:1px solid var(--ink)}.credential-grid{padding-block:28px;grid-template-columns:1fr 1.65fr auto;gap:32px}.credential-label{font-size:.6875rem;letter-spacing:.1em;margin-bottom:6px}.credential-grid strong{font-size:.9375rem;font-weight:400}.credential-grid>div:nth-child(2){border-color:var(--ink);padding-left:32px}.credential-grid>a{font-size:.875rem;gap:19px;color:var(--brand-tint)}.origin-section{padding-block:115px 95px}.origin-heading{display:grid;grid-template-columns:.95fr 1.05fr;gap:100px;align-items:center}.origin-heading h2{font-size:clamp(3.5rem,5.8vw,5.25rem);line-height:1.03;letter-spacing:-.055em}.origin-heading blockquote{margin:0;font-size:clamp(1.75rem,2.7vw,2.5rem);line-height:1.4;letter-spacing:-.025em;font-weight:400}.quote-source{font-size:.75rem;color:var(--muted-foreground);line-height:1.8;margin-top:22px}.origin-story{display:grid;grid-template-columns:1fr 1fr;gap:100px;margin-top:75px}.origin-story>div{padding-top:25px;border-top:1px solid var(--muted-foreground)}.story-date{font-size:.75rem;letter-spacing:.14em;color:var(--muted-foreground)}.origin-story h3{font-size:1.5625rem;line-height:1.35;letter-spacing:-.025em;margin:19px 0}.origin-story p{font-size:1rem;line-height:1.9;max-width:520px}.origin-end{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-top:44px}.origin-end>p{font-size:.75rem;color:var(--muted-foreground)}.book-commerce{background:var(--ink);color:white;padding-block:105px}.commerce-grid{display:grid;grid-template-columns:1fr 1fr;gap:120px;align-items:center}.commerce-grid .section-label{color:var(--muted-foreground)}.commerce-grid h2{font-size:clamp(3.5rem,6vw,5.5rem);line-height:1.025;letter-spacing:-.055em}.commerce-subtitle{font-size:1.1875rem;color:var(--muted-foreground);margin:24px 0}.commerce-grid>div>p:not(.section-label):not(.commerce-subtitle){font-size:1rem;color:var(--muted-foreground);max-width:510px;line-height:1.9}.commerce-topics{display:flex;flex-wrap:wrap;gap:12px 22px;border-top:1px solid var(--ink);padding-top:21px;margin-top:30px;font-size:.75rem;color:var(--muted-foreground)}.edition-picker{border-top:1px solid var(--ink);padding-top:24px}.picker-step{display:flex;align-items:center;gap:17px;margin-bottom:20px}.picker-step>span{font-size:.75rem;color:var(--muted-foreground)}.picker-step h3{font-size:1rem;font-weight:400;letter-spacing:0}.picker-languages{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:36px}.picker-choice{display:flex;align-items:center;justify-content:center;gap:10px;border:1px solid var(--ink);background:transparent;color:var(--muted-foreground);font-size:.8125rem;line-height:1.4;padding:13px 14px;min-height:50px;position:relative;cursor:pointer;transition:background .2s}.picker-choice[data-selected=true]{border-color:var(--brand-tint);background:var(--brand-tint)}.picker-choice:focus-within{outline:2px solid var(--muted-foreground);outline-offset:4px}.picker-radio{position:absolute!important;width:1px!important;height:1px!important;opacity:0!important;left:50%;top:50%;border:0!important}.picker-formats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:30px}.picker-formats .picker-choice{min-height:63px;font-size:.875rem}.edition-picker .button{width:100%}.picker-note{color:var(--muted-foreground);font-size:.75rem;line-height:1.9;margin-top:17px}.owner-section{padding-top:105px}.owner-heading{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center}.owner-heading h2{font-size:clamp(3rem,5vw,4.375rem);line-height:1.07}.owner-heading p{font-size:1.0625rem;line-height:1.9;max-width:500px;margin-bottom:22px}.architecture-banner{margin-top:52px;background:var(--ink)}.architecture-banner>img{width:100%;height:480px;object-fit:cover;object-position:50% 63%}.architecture-banner figcaption{display:flex;justify-content:space-between;gap:18px;padding:13px 18px;font-size:.75rem;line-height:1.6;color:var(--muted-foreground)}.architecture-banner figcaption>a{display:flex;align-items:center;gap:5px;white-space:nowrap}.expertise{gap:100px}.section-intro>p:not(.section-label){font-size:1rem;max-width:380px;margin:25px 0}.service-list{border-color:var(--muted-foreground)}.service-trigger{padding-block:27px;gap:25px}.service-title{font-size:1.6875rem;color:var(--ink);letter-spacing:-.025em}.service-subtitle{font-family:var(--font-brand);font-size:.875rem;color:var(--muted-foreground);letter-spacing:0;margin-top:10px}.service-number{font-size:.75rem;color:var(--muted-foreground)}.service-content>p{font-size:1rem;color:var(--muted-foreground);line-height:1.85}.service-content li{font-size:.875rem;color:var(--muted-foreground);line-height:2.3}.approach-section{padding-block:90px}.approach-heading{grid-template-columns:.7fr 1.25fr 1fr;gap:45px}.approach-heading h2{font-size:3rem;line-height:1.15}.approach-heading p:last-child{font-size:1rem;max-width:340px}.principle-grid{gap:45px}.principle-grid h3{font-size:1.5625rem;line-height:1.25;margin:23px 0 19px}.principle-grid p{font-size:1rem;max-width:365px;line-height:1.85}.mono-label{font-size:.75rem;color:var(--muted-foreground)}.experience-section{gap:90px;align-items:center}.experience-section>div>p:not(.section-label){font-size:1rem;line-height:1.9;max-width:520px}.founder-signature{margin-top:30px}.founder-signature>span{font-family:var(--font-brand);font-style:normal;color:var(--ink);font-size:1.75rem;letter-spacing:-.04em}.founder-signature small{font-family:var(--font-brand);color:var(--muted-foreground);font-size:.75rem;letter-spacing:.1em;line-height:1.6}.experience-panel{border:0}.experience-stat{padding:34px 36px}.experience-stat strong,html[lang=zh-CN] .experience-stat strong{font-size:4.5rem;font-weight:400;letter-spacing:-.065em}.experience-stat strong span{font-family:var(--font-brand);font-style:normal;font-size:1rem;color:var(--muted-foreground);letter-spacing:0}.experience-stat p{font-size:.875rem;color:var(--muted-foreground);line-height:1.7}.experience-stat small{font-size:.75rem;color:var(--muted-foreground);line-height:1.6}.second-stat{border-color:var(--border);margin-top:28px;padding-top:9px}.second-stat strong,html[lang=zh-CN] .second-stat strong{font-size:3.5rem}.license-note{border-color:var(--border);padding:25px 36px}.license-note .mono-label{font-size:.75rem;letter-spacing:.075em}.license-note p{font-size:.875rem;line-height:1.8}.contact-section{border-top:1px solid var(--border);gap:100px}.contact-section h2{font-size:clamp(2.75rem,4.5vw,4rem)}.contact-section>div>p:not(.section-label){font-size:1rem;line-height:1.9;max-width:470px}.contact-main{border-color:var(--muted-foreground);padding-top:28px}.contact-main>span{font-family:var(--font-brand);font-size:.75rem;color:var(--muted-foreground)}.contact-main strong{font-size:1.5625rem;color:var(--ink);letter-spacing:-.03em}.contact-arrow{color:var(--ink)}.contact-phone{font-size:1.25rem;border-color:var(--border)}.contact-details>p{font-size:.8125rem!important;color:var(--muted-foreground);line-height:1.8}.site-footer{background:#fff;color:var(--ink);border-top:1px solid var(--border)}.footer-main{padding-block:48px}.footer-main p{font-size:.8125rem;line-height:1.9}.footer-links,.footer-main p{color:var(--muted-foreground)}.footer-links{font-size:.875rem;gap:12px}.footer-bottom{font-size:.75rem;color:var(--muted-foreground);border-color:var(--border);padding-block:22px}.footer-main .brand{margin-bottom:18px}.book-breadcrumb{font-family:var(--font-brand);font-size:.75rem;color:var(--muted-foreground);letter-spacing:.03em}.book-page-heading{position:relative;padding-block:45px 40px}.book-page-heading .section-label{margin-bottom:17px}.book-page-heading h1{font-size:clamp(2.25rem,3.5vw,3rem);line-height:1.2;max-width:800px}.book-jump{display:inline-flex;align-items:center;gap:12px;float:right;font-size:.8125rem;color:var(--muted-foreground);margin-left:20px}.edition-selector{position:sticky;top:80px;z-index:15;background:#fff;border-color:var(--muted-foreground);padding-block:15px}.edition-selector>p{font-family:var(--font-brand);font-size:.75rem;color:var(--muted-foreground);line-height:1.6;letter-spacing:.08em}.language-tabs>[role=tab]{font-size:.875rem;min-height:45px;padding:11px 17px;color:var(--muted-foreground);white-space:normal}.language-tabs>[role=tab][data-state=active]{background:var(--ink)!important;color:white!important}.language-tabs>[role=tab]:hover{background:var(--brand-tint)}.edition-grid{grid-template-columns:1fr 1.05fr;gap:80px;padding-block:45px 90px;max-width:1130px}.edition-cover{max-width:430px;background:var(--brand-tint)}.edition-cover figcaption{font-family:var(--font-brand);font-size:.75rem;letter-spacing:0;color:var(--muted-foreground);line-height:1.7}.edition-copy{padding-top:6px}.edition-status{font-family:var(--font-brand);font-size:.75rem;color:var(--muted-foreground);letter-spacing:.07em;line-height:1.8}.edition-status>span{background:var(--muted-foreground)}.edition-copy h2{font-family:var(--font-brand);font-size:3.5rem;letter-spacing:-.045em;line-height:1.02}.edition-subtitle{font-family:var(--font-brand);font-size:1.1875rem;color:var(--muted-foreground);line-height:1.55}.edition-author{font-size:.875rem;color:var(--ink)}.edition-description{font-size:1rem;color:var(--muted-foreground);line-height:1.85;margin-top:25px}.format-fieldset legend{font-size:.875rem;color:var(--muted-foreground);margin-bottom:12px}.format-options{gap:12px;grid-template-columns:1fr 1fr}.format-options button{font-size:.875rem;border-color:var(--muted-foreground);padding:17px 15px;min-height:62px;color:var(--muted-foreground)}.format-options button[aria-pressed=true]{border-color:var(--ink);background:var(--brand-tint);color:var(--ink)}.format-description{font-size:.875rem;line-height:1.8;margin-top:13px}.release-note{line-height:1.85;max-width:470px}.ordering-status,.release-note{font-size:.8125rem;color:var(--muted-foreground)}.ordering-status{margin-top:6px}.book-themes{background:var(--brand-tint);padding-block:80px}.theme-grid{gap:60px}.theme-grid article{border-color:var(--muted-foreground)}.theme-grid h3{font-family:var(--font-brand);font-size:2.125rem;font-weight:500}.theme-grid p{font-size:1rem;line-height:1.85;color:var(--muted-foreground);max-width:365px}.author-note{background:var(--ink);color:var(--brand-tint);padding-block:100px}.author-note-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:100px;align-items:start}.author-note .section-label{color:var(--muted-foreground)}.author-note h2{font-size:3.875rem;line-height:1.1}.note-author{font-size:.875rem;color:var(--muted-foreground);margin-top:28px}.note-passages>p{color:var(--muted-foreground);font-size:1.0625rem;line-height:2;margin-bottom:23px}.note-passages blockquote{font-size:1.625rem;line-height:1.6;margin:17px 0 25px;color:var(--border);letter-spacing:-.02em}.note-passages .quote-source{font-size:.75rem;color:var(--muted-foreground)}.note-passages .text-link{color:var(--brand-tint);border-color:var(--muted-foreground);margin-top:12px}.excerpt-break{font-size:1.25rem;color:var(--muted-foreground);letter-spacing:.3em;display:block;margin:12px 0 18px}.book-author{padding-block:85px;gap:85px}.book-author h2{font-size:2.625rem}.book-author h2>span{font-size:1.125rem;color:var(--muted-foreground)}.book-author>div>p:not(.section-label){font-size:1rem;color:var(--muted-foreground);line-height:1.9}.book-author .section-label{margin-bottom:24px}html[lang=zh-CN] .identity-copy h1{font-size:clamp(3.5rem,6vw,5.25rem);line-height:1.23;letter-spacing:-.03em}html[lang=zh-CN] .section h2{font-size:clamp(2.4rem,4vw,3.5rem);line-height:1.25}html[lang=zh-CN] .origin-heading h2{font-size:4.5rem;line-height:1.15}html[lang=zh-CN] .origin-heading blockquote{line-height:1.6;font-size:2.25rem}html[lang=zh-CN] .commerce-grid h2{font-size:5rem;line-height:1.16}html[lang=zh-CN] .owner-heading h2{font-size:3.5rem;line-height:1.23}html[lang=zh-CN] .approach-heading h2{font-size:2.625rem;line-height:1.2}html[lang=zh-CN] .principle-grid h3{font-size:1.5rem}html[lang=zh-CN] .book-page-heading h1{font-size:2.625rem;line-height:1.3}html[lang=zh-CN] .author-note h2{font-size:3.5rem;line-height:1.3}@media(max-width:1150px){.container{width:calc(100% - 72px)}.identity-grid{gap:45px}.identity-copy h1{font-size:5rem}.identity-actions{gap:12px}.identity-actions .button{min-width:190px;padding-inline:18px;gap:20px}.identity-book{max-width:335px}.credential-grid{gap:23px;grid-template-columns:1fr 1.7fr auto}.credential-grid strong{font-size:.8125rem}.credential-grid>div:nth-child(2){padding-left:23px}.credential-grid>a{font-size:.8125rem}.commerce-grid,.origin-heading,.origin-story,.owner-heading{gap:70px}.origin-heading h2{font-size:4.5rem}.origin-heading blockquote{font-size:2.125rem}.picker-languages{gap:6px}.picker-choice{padding-inline:10px;font-size:.75rem}.approach-heading{gap:30px}.approach-heading h2{font-size:2.5rem}.experience-section{gap:55px}.experience-stat strong,html[lang=zh-CN] .experience-stat strong{font-size:3.875rem}.second-stat strong,html[lang=zh-CN] .second-stat strong{font-size:3rem}.experience-stat strong span{font-size:.875rem;margin-left:10px}.contact-section{gap:60px}.edition-grid{gap:55px}.edition-copy h2{font-size:3rem}.book-jump{float:none;margin:0 0 22px}.author-note-grid{gap:70px}}@media(max-width:850px){.container{width:calc(100% - 48px)}.header-inner{height:76px}.header-actions{gap:20px}.identity-grid{grid-template-columns:1fr .85fr;gap:35px;padding-block:35px}.identity-copy h1{font-size:4.25rem}.identity-description{font-size:1rem;line-height:1.8}.identity-actions{flex-direction:column;align-items:stretch;max-width:295px;gap:12px;margin-top:28px}.identity-role{font-size:.75rem;line-height:1.9;margin-top:23px}.identity-book figcaption{flex-direction:column;gap:4px;font-size:.6875rem}.credential-grid{grid-template-columns:1fr 1.6fr;gap:22px}.credential-grid>a{grid-column:1/-1;justify-content:space-between;padding-top:14px;border-top:1px solid var(--ink)}.credential-grid strong{font-size:.875rem}.origin-section{padding-block:85px}.origin-heading,.origin-story,.owner-heading{gap:45px}.origin-heading h2{font-size:3.75rem}.origin-heading blockquote{font-size:1.75rem}.origin-story{margin-top:50px}.origin-story h3{font-size:1.375rem}.origin-story p{font-size:1rem}.commerce-grid{gap:45px;grid-template-columns:1fr 1fr}.commerce-grid h2{font-size:3.75rem}.book-commerce{padding-block:80px}.commerce-subtitle{font-size:1.0625rem}.commerce-grid>div>p:not(.section-label):not(.commerce-subtitle){font-size:1rem}.picker-languages{gap:6px;margin-bottom:26px}.picker-choice{font-size:.8125rem;padding:12px}.picker-formats{gap:8px}.picker-formats .picker-choice{font-size:.8125rem;gap:8px}.owner-section{padding-top:85px}.owner-heading h2{font-size:3rem}.architecture-banner>img{height:370px}.architecture-banner figcaption{flex-direction:column;gap:4px;font-size:.75rem}.section{padding-block:80px}.expertise{gap:40px;grid-template-columns:.85fr 1fr}.service-title{font-size:1.5rem}.service-subtitle{font-size:.8125rem}.service-content{padding-left:40px}.approach-heading{grid-template-columns:1fr 1fr;gap:30px}.approach-heading .section-label{grid-column:1/-1}.approach-heading h2{font-size:2.75rem}.principle-grid{gap:27px}.principle-grid h3{font-size:1.375rem}.principle-grid p{font-size:1rem}.experience-section{gap:40px;grid-template-columns:1fr 1fr}.experience-stat{padding:28px}.experience-stat strong,html[lang=zh-CN] .experience-stat strong{font-size:3.25rem}.second-stat strong,html[lang=zh-CN] .second-stat strong{font-size:2.625rem}.experience-stat strong span{font-size:.8125rem;margin-left:8px}.license-note{padding:23px 28px}.contact-section{gap:40px}.contact-main strong{font-size:1.3rem}.contact-details>p{font-size:.8125rem!important}.edition-selector{top:76px;align-items:flex-start;gap:14px}.edition-grid{gap:35px}.edition-copy h2{font-size:2.625rem}.edition-description{font-size:1rem}.format-options{grid-template-columns:1fr}.format-options button{font-size:.875rem}.author-note-grid{gap:50px}.author-note h2{font-size:3rem}.book-author{gap:50px}html[lang=zh-CN] .identity-copy h1{font-size:3.75rem}html[lang=zh-CN] .origin-heading h2{font-size:3.5rem}html[lang=zh-CN] .origin-heading blockquote{font-size:1.875rem}html[lang=zh-CN] .commerce-grid h2{font-size:3.75rem}html[lang=zh-CN] .owner-heading h2{font-size:2.75rem}}@media(max-width:600px){.container{width:calc(100% - 40px)}.header-inner{height:72px;gap:12px}.brand img{width:85px;height:46px}.header-actions{gap:17px}.header-contact{padding:8px 12px;gap:10px}.header-contact,.locale-switch{font-size:.8125rem}.eyebrow,.mono-label,.section-label{font-size:.75rem}.identity-grid{grid-template-columns:1fr;gap:33px;padding-block:33px 30px}.identity-copy{padding:0}.identity-copy h1{font-size:4.5rem;line-height:1.02;margin:20px 0 26px}.identity-description{font-size:1rem;max-width:440px;line-height:1.85}.identity-actions{flex-direction:row;display:grid;grid-template-columns:1fr 1fr;gap:10px;max-width:none;margin-top:27px}.identity-actions .button{min-width:0;font-size:.8125rem;padding:15px 14px;gap:12px;min-height:54px}.identity-actions .button svg{flex-shrink:0;width:16px}.identity-role{font-size:.6875rem;letter-spacing:.035em;margin-top:23px}.identity-book{max-width:290px;justify-self:center;width:85%}.identity-book figcaption{font-size:.625rem;letter-spacing:.04em;flex-direction:row;gap:12px;margin-top:13px}.credential-grid{grid-template-columns:1fr;padding-block:25px;gap:20px}.credential-grid>div:nth-child(2){padding-left:0;border-left:0}.credential-label{font-size:.6875rem;line-height:1.8}.credential-grid strong{font-size:.875rem;line-height:1.8}.credential-grid>a{font-size:.875rem}.origin-section{padding-block:70px}.section-label{margin-bottom:26px;gap:18px;letter-spacing:.12em}.origin-heading{grid-template-columns:1fr;gap:32px}.origin-heading h2{font-size:3.75rem;line-height:1.03}.origin-heading blockquote{font-size:1.875rem;line-height:1.45}.quote-source{font-size:.75rem;margin-top:20px}.origin-story{grid-template-columns:1fr;gap:32px;margin-top:42px}.origin-story h3{font-size:1.4375rem;margin:17px 0}.origin-story p{font-size:1rem;line-height:1.9}.origin-end{flex-direction:column;align-items:flex-start;gap:20px;margin-top:30px}.origin-end>p{font-size:.75rem}.book-commerce{padding-block:65px}.commerce-grid{grid-template-columns:1fr;gap:42px}.commerce-grid h2{font-size:3.875rem}.commerce-subtitle{font-size:1.1875rem;margin-top:20px}.commerce-grid>div>p:not(.section-label):not(.commerce-subtitle){font-size:1rem}.commerce-topics{font-size:.75rem;gap:12px 18px}.edition-picker{padding-top:25px}.picker-step h3{font-size:1rem}.picker-languages{gap:7px}.picker-choice{padding:12px 13px;font-size:.8125rem;min-height:48px}.picker-formats .picker-choice{font-size:.875rem}.picker-note{font-size:.75rem}.owner-section{padding-top:70px}.owner-heading{grid-template-columns:1fr;gap:28px}.owner-heading h2{font-size:3.125rem}.owner-heading p{font-size:1rem;line-height:1.9}.architecture-banner{margin-top:33px}.architecture-banner>img{height:360px;object-position:50% 67%}.architecture-banner figcaption{font-size:.6875rem;padding:12px 14px;line-height:1.7}.section{padding-block:70px}.section h2{font-size:2.75rem}.expertise{grid-template-columns:1fr;gap:36px}.section-intro>p:not(.section-label){font-size:1rem;max-width:420px}.service-title{font-size:1.625rem}.service-subtitle{font-size:.875rem}.service-trigger{padding-block:24px;gap:17px}.service-content{padding-left:41px}.service-content>p{font-size:1rem}.service-content li{font-size:.875rem}.approach-section{padding-block:65px}.approach-heading{grid-template-columns:1fr;gap:27px}.approach-heading h2{font-size:2.875rem}.approach-heading p:last-child{font-size:1rem;max-width:none}.principle-grid{grid-template-columns:1fr;gap:32px;margin-top:39px}.principle-grid h3{font-size:1.625rem;margin:20px 0 15px}.principle-grid p{font-size:1rem;max-width:none}.experience-section{grid-template-columns:1fr;gap:35px}.experience-section>div>p:not(.section-label){font-size:1rem}.experience-stat{padding:28px}.experience-stat strong,html[lang=zh-CN] .experience-stat strong{font-size:3.75rem}.experience-stat strong span{font-size:.875rem;margin-left:11px}.second-stat strong,html[lang=zh-CN] .second-stat strong{font-size:3rem}.experience-stat p{font-size:.875rem;line-height:1.8}.license-note{padding:24px 28px}.contact-section{grid-template-columns:1fr;gap:26px}.contact-section h2{font-size:2.875rem}.contact-section>div>p:not(.section-label){font-size:1rem}.contact-main strong{font-size:1.4rem;padding-right:7px}.contact-phone{font-size:1.25rem}.contact-details>p{font-size:.8125rem!important}.footer-main{gap:27px;padding-block:37px}.footer-links{font-size:.875rem;gap:13px}.footer-main p{font-size:.8125rem}.footer-bottom{font-size:.75rem;gap:14px;padding-block:22px;line-height:1.8}.book-breadcrumb{font-size:.75rem;align-items:flex-start;gap:20px}.book-breadcrumb>span{font-size:.6875rem;text-align:right}.book-page-heading{padding-block:35px 32px}.book-page-heading h1{font-size:2rem;line-height:1.2}.book-jump{font-size:.8125rem;margin-bottom:24px}.edition-selector{top:72px;padding-block:15px;gap:13px;overflow:visible}.language-tabs{flex-wrap:wrap;gap:5px}.language-tabs>[role=tab]{font-size:.8125rem;min-width:54px;min-height:44px;padding:10px 8px;flex:1}.edition-selector>p{font-size:.75rem}.edition-grid{grid-template-columns:1fr;gap:32px;padding-block:28px 65px}.edition-cover{max-width:310px}.edition-cover figcaption{font-size:.75rem}.edition-copy h2{font-size:3.25rem;max-width:410px}.edition-subtitle{font-size:1.1875rem}.edition-author{font-size:.875rem}.edition-status{font-size:.75rem}.edition-description{font-size:1rem;line-height:1.9}.format-options{grid-template-columns:1fr 1fr;gap:10px}.format-options button{font-size:.8125rem;padding:16px 11px;gap:8px;line-height:1.5}.format-description{font-size:.8125rem;line-height:1.8}.ordering-status,.release-note{font-size:.8125rem;line-height:1.9}.book-themes{padding-block:65px}.theme-grid{grid-template-columns:1fr;gap:34px}.theme-grid h3{font-size:2rem;margin:18px 0}.theme-grid p{font-size:1rem;max-width:none}.author-note{padding-block:70px}.author-note-grid{grid-template-columns:1fr;gap:38px}.author-note h2{font-size:3.25rem}.note-passages>p{font-size:1rem;line-height:2}.note-passages blockquote{font-size:1.5rem;line-height:1.6}.note-author{font-size:.875rem;margin-top:23px}.book-author{padding-block:65px;grid-template-columns:1fr;gap:26px}.book-author h2{font-size:2.5rem}.book-author h2>span{font-size:1.125rem}.book-author>div>p:not(.section-label){font-size:1rem}html[lang=zh-CN] .identity-copy h1{font-size:3.625rem;line-height:1.2}html[lang=zh-CN] .origin-heading h2{font-size:3.5rem;line-height:1.15}html[lang=zh-CN] .origin-heading blockquote{font-size:1.875rem;line-height:1.6}html[lang=zh-CN] .commerce-grid h2{font-size:3.875rem;line-height:1.2}html[lang=zh-CN] .owner-heading h2{font-size:3rem;line-height:1.2}html[lang=zh-CN] .section h2{font-size:2.625rem}html[lang=zh-CN] .approach-heading h2{font-size:2.5rem}html[lang=zh-CN] .book-page-heading h1{font-size:2.125rem;line-height:1.35}html[lang=zh-CN] .author-note h2{font-size:3rem}}@media(max-width:370px){.identity-copy h1{font-size:3.875rem}.identity-actions{grid-template-columns:1fr}.identity-actions .button{font-size:.875rem;min-height:51px}.identity-book{width:90%}.origin-heading h2{font-size:3.25rem}.commerce-grid h2{font-size:3.4rem}.experience-stat strong,html[lang=zh-CN] .experience-stat strong{font-size:3.1rem}.contact-main strong{font-size:1.2rem}.format-options{grid-template-columns:1fr}.language-tabs>[role=tab]{font-size:.75rem;flex:0 1 auto;min-width:52px}.credential-grid strong{font-size:.8125rem}html[lang=zh-CN] .identity-copy h1{font-size:3.25rem}html[lang=zh-CN] .commerce-grid h2{font-size:3.5rem}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}.format-option-label{display:flex;flex-direction:column;align-items:flex-start;gap:6px;line-height:1.4;min-width:0}.format-option-label strong{font-size:1rem;font-weight:500;letter-spacing:0}.picker-formats .picker-choice{min-height:80px;gap:16px}.format-options button{min-height:80px}.selected-book-price{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:20px;margin-top:20px;border-top:1px solid var(--border)}.selected-book-price>span{font-size:.8125rem;color:var(--muted-foreground)}.selected-book-price>strong{font-size:2rem;font-weight:400;letter-spacing:-.035em;color:var(--ink)}@media(max-width:600px){.format-options button{min-height:80px}.picker-formats .picker-choice{gap:12px}.format-option-label strong{font-size:1rem}.selected-book-price>strong{font-size:1.875rem}}.project-gallery{margin-top:56px}.project-gallery-heading{display:flex;justify-content:space-between;align-items:baseline;gap:20px;margin-bottom:25px}.project-gallery-heading h3{font-size:1.75rem;line-height:1.3}.project-gallery-heading>span{font-size:.75rem;letter-spacing:.12em;color:var(--muted-foreground)}.project-gallery figure{margin:0;min-width:0}.project-gallery img{display:block;width:100%;height:auto}.project-gallery figcaption{font-size:.8125rem;color:var(--muted-foreground);padding:12px 0 0;line-height:1.6}.project-details{display:grid;grid-template-columns:1.25fr 1fr;gap:28px 32px;margin-top:32px;align-items:start}.project-living{grid-column:1;grid-row:1}.project-dining{grid-column:1;grid-row:2}.project-stair{grid-column:2;grid-row:1/span 2}@media(max-width:700px){.project-gallery{margin-top:36px}.project-gallery-heading{display:block;margin-bottom:22px}.project-gallery-heading h3{font-size:1.5rem;margin-bottom:10px}.project-gallery-heading>span{font-size:.75rem}.project-details{grid-template-columns:1fr;gap:25px;margin-top:25px}.project-dining,.project-living,.project-stair{grid-column:auto;grid-row:auto}.project-gallery figcaption{padding-top:10px}}.author-visit-photo{width:100%;max-width:350px;margin:32px 0 0}.author-visit-photo img{display:block;width:100%;height:auto}.author-visit-photo figcaption{padding-top:12px;font-size:.8125rem;line-height:1.7;color:var(--muted-foreground)}.book-author{align-items:center}.book-author .author-visit-photo{margin-top:28px}@media(max-width:700px){.author-visit-photo{max-width:100%;margin-top:26px}.author-visit-photo figcaption{font-size:.75rem}}.creation-intro{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center;margin-bottom:48px}.creation-intro h2{font-size:clamp(2.8rem,4.5vw,4.5rem);line-height:1.1}.creation-intro>p{font-size:1.0625rem;line-height:1.9}.creation-explainer{display:grid;grid-template-columns:1.1fr 1fr;gap:55px;align-items:center}.creation-explainer figure{margin:0;min-width:0}.creation-explainer img{width:100%;height:auto;display:block}.creation-explainer figcaption{font-size:.75rem;color:var(--muted-foreground);margin-top:10px}.creation-steps article{display:flex;align-items:flex-start;gap:20px}.creation-number{font-size:2rem;line-height:1.2;color:var(--brand)}.creation-steps h3{font-size:1.75rem;line-height:1.3;margin:9px 0 14px}.creation-steps article p:last-child{font-size:1rem;line-height:1.85}.data-transfer{display:flex;gap:15px;align-items:center;margin:25px 0;color:var(--brand)}.data-transfer span{font-size:.75rem;letter-spacing:.06em}.data-transfer svg{flex-shrink:0}.creation-feedback{display:flex;gap:12px;align-items:center;border-top:1px solid var(--muted-foreground);padding-top:20px;margin-top:25px;font-size:.75rem;color:var(--muted-foreground)}.creation-feedback svg{flex-shrink:0}.illustrated-principles{margin-top:65px}.illustrated-principles article{padding-top:0;border:0}.principle-image{height:220px;display:flex;align-items:center;justify-content:center;margin-bottom:25px;background:#fff;overflow:hidden}.principle-image.digital-twin{background:#fff}.principle-image img{max-width:100%;max-height:100%;object-fit:contain}.waste-section{margin-top:80px;padding-top:60px;border-top:1px solid var(--muted-foreground)}.waste-heading{max-width:800px}.waste-heading h2{font-size:clamp(2.4rem,4vw,3.75rem);line-height:1.15;margin:20px 0}.waste-heading>p:last-child{font-size:1.0625rem;max-width:680px}.waste-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-top:45px}.waste-grid article{border-top:1px solid var(--muted-foreground);padding-top:25px;min-width:0}.waste-grid article>svg:first-child{color:var(--brand)}.waste-grid h3{font-size:1.5rem;line-height:1.3;margin:20px 0 15px}.waste-grid p{font-size:.9375rem;line-height:1.8}.waste-arrow{margin:15px 0;color:var(--muted-foreground)}.waste-grid .waste-action{color:var(--ink)}.waste-problem{min-height:54px}@media(max-width:1000px){.creation-intro{gap:35px}.creation-explainer{gap:30px}.principle-image{height:170px}.waste-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:700px){.creation-explainer,.creation-intro{grid-template-columns:1fr;gap:28px}.creation-intro{margin-bottom:30px}.creation-intro h2{font-size:3rem}.creation-intro>p{font-size:1rem}.creation-steps h3{font-size:1.625rem}.creation-number{font-size:1.75rem}.creation-steps article{gap:16px}.illustrated-principles{margin-top:45px}.principle-image{height:auto;min-height:180px;max-height:300px}.principle-image img{max-height:300px}.waste-section{margin-top:50px;padding-top:40px}.waste-heading h2{font-size:2.5rem}.waste-heading>p:last-child{font-size:1rem}.waste-grid{gap:28px 20px;margin-top:30px}.waste-grid h3{font-size:1.25rem}.waste-grid p{font-size:.875rem}.waste-problem{min-height:76px}}@media(max-width:380px){.waste-grid{grid-template-columns:1fr}.waste-problem{min-height:0}}body{font-family:var(--font-brand)}.brand{background:#fff;flex-shrink:0}.brand img{object-fit:contain}.site-header .brand{padding:4px 0}.site-footer,.site-header{background:#fff}.site-footer{border-top:3px solid var(--brand)}.desktop-nav a:after{background:var(--brand);height:2px}.desktop-nav a[aria-current],.header-contact,.locale-switch:hover{color:var(--brand-ink)}.header-contact{border-color:var(--brand)}.header-contact:hover{background:var(--brand-tint)}.mobile-nav a:hover{color:var(--brand-ink)}.button.primary,.edition-picker>.button,.identity-actions .button.light{background:var(--brand);border-color:var(--brand);color:var(--ink)}.button.primary:hover,.edition-picker>.button:hover,.identity-actions .button.light:hover{background:var(--brand-light);border-color:var(--brand-light);color:var(--ink)}.button.outline:hover{border-color:var(--brand-light)}.text-link{border-color:var(--brand)}.text-link:hover{border-color:var(--brand-ink)}.section-label>span,.service-number,.text-link:hover{color:var(--brand-ink)}.book-commerce .section-label>span{color:var(--brand-light)}.picker-choice[data-selected=true]{background:var(--brand);border-color:var(--brand);color:var(--ink)}.picker-choice:focus-within{outline-color:var(--brand-light)}.creation-number,.data-transfer,.waste-arrow,.waste-grid article>svg:first-child{color:var(--brand-ink)}.creation-number,.credential-grid strong,.credential-label,.edition-price,.experience-stat strong,.experience-stat strong span,.eyebrow,.mono-label,.picker-price,.section-label,.service-number,.story-date{font-family:var(--font-brand)}.approach-section{background:var(--brand-tint)}.approach-section .section-label>span{color:var(--brand-ink)}.principle-grid article{border-color:var(--muted-foreground)}.waste-grid article{border-top:2px solid var(--brand)}.waste-heading>.mono-label{color:var(--brand-ink)}.experience-panel{background:var(--brand-tint)}.license-note{border-top-color:#d5dfd0}.contact-main>span,.contact-phone>svg:first-child{color:var(--brand-ink)}:where(a,button,[role=tab],[role=radio]):focus-visible{outline:2px solid var(--brand-ink);outline-offset:5px}.book-commerce :focus-visible,.identity-hero :focus-visible{outline-color:var(--brand-light)}@media(max-width:700px){.brand img{width:85px;height:auto}}.illustrated-principles .principle-image{height:auto;min-height:0;max-height:none;aspect-ratio:1672/941;background:#fff}.illustrated-principles .principle-image img{display:block;width:100%;height:100%;max-height:none;object-fit:contain}.identity-hero{position:relative}.identity-grid:has(.identity-book-expanded){min-height:700px}.identity-book-expanded{position:absolute;top:0;bottom:0;left:var(--book-nav-left,58.5%);right:max(56px,calc((100% - 1280px)/2));width:auto;max-width:none;margin:0;overflow:hidden}.identity-book-expanded img,.identity-book-expanded>a{display:block;width:100%;height:100%}.identity-book-expanded img{object-fit:cover;object-position:center}@media(max-width:1000px){.identity-grid:has(.identity-book-expanded){min-height:0;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:36px}.identity-book-expanded{position:relative;inset:auto;width:100%;max-width:none;justify-self:stretch;align-self:center;aspect-ratio:1;margin:0}}@media(max-width:700px){.identity-grid:has(.identity-book-expanded){grid-template-columns:minmax(0,1fr);gap:32px;padding-bottom:0}}.book-introduction{background:#fff;color:var(--ink);padding-block:95px}.book-intro-heading{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}.book-intro-heading h2{font-size:clamp(2.8rem,4.8vw,4.75rem);line-height:1.08}.book-intro-heading p{font-size:1rem;line-height:1.9;margin-bottom:20px;color:var(--ink)}.book-intro-heading .book-intro-lead{font-size:1.375rem;line-height:1.6;color:var(--ink)}.book-reader-themes{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:48px}.book-reader-themes article{border-top:1px solid var(--border);padding-top:22px}.book-reader-themes .mono-label{color:var(--brand-ink)}.book-reader-themes h3{font-size:1.5rem;line-height:1.35;letter-spacing:-.025em;margin:15px 0}.book-reader-themes p{font-size:1rem;line-height:1.8}.book-edition-row{border-top:1px solid var(--border);margin-top:64px;padding-top:56px;gap:80px}.book-introduction .commerce-grid h2{font-size:clamp(2.25rem,3.5vw,3.5rem);line-height:1.12}.book-introduction .commerce-subtitle{color:var(--ink);font-size:1.125rem}.book-introduction .commerce-grid>div>p:not(.section-label):not(.commerce-subtitle),.book-introduction .section-label{color:var(--muted-foreground)}.book-introduction .edition-picker{border-top:0;padding-top:0}.book-introduction .picker-choice{color:var(--ink);border-color:var(--muted-foreground);background:#fff}.book-introduction .picker-choice[data-selected=true]{color:var(--ink);background:var(--brand-tint);border-color:var(--brand-ink)}.book-introduction .picker-note{color:var(--muted-foreground)}.book-introduction :focus-visible{outline-color:var(--brand-ink)}@media(max-width:850px){.book-intro-heading{grid-template-columns:1fr;gap:28px}.book-reader-themes{gap:24px}.book-edition-row{gap:35px}}@media(max-width:700px){.book-introduction{padding-block:55px}.book-reader-themes{grid-template-columns:1fr;gap:26px;margin-top:30px}.book-edition-row{grid-template-columns:1fr;margin-top:40px;padding-top:35px}.book-intro-heading .book-intro-lead{font-size:1.1875rem}}.approach-section,.architecture-banner,.author-note,.book-commerce,.book-themes,.credential-strip,.experience-panel,.identity-hero{background:#fff;color:var(--ink)}.identity-copy h1{color:var(--ink)}.identity-copy h1>span{color:var(--muted-foreground)}.identity-description{color:var(--ink)}.identity-copy .eyebrow,.identity-role{color:var(--muted-foreground)}.identity-actions .button.outline{background:#fff;color:var(--brand-ink);border-color:var(--brand-ink)}.identity-actions .button.outline:hover{background:var(--brand-tint);color:var(--brand-ink);border-color:var(--brand-ink)}.credential-strip{border-block:1px solid var(--border)}.credential-label{color:var(--muted-foreground)}.credential-grid strong{color:var(--ink)}.credential-grid>div:nth-child(2){border-color:var(--border)}.credential-grid>a{color:var(--brand-ink)}.approach-section,.author-note,.book-themes{border-top:1px solid var(--border)}.architecture-banner figcaption,.author-note .section-label,.note-author,.note-passages .quote-source{color:var(--muted-foreground)}.note-passages blockquote,.note-passages>p{color:var(--ink)}.note-passages .text-link{color:var(--brand-ink);border-color:var(--brand)}.book-commerce :focus-visible,.identity-hero :focus-visible{outline-color:var(--brand-ink)}.edition-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px;padding:0 0 80px;align-items:stretch}.edition-cover,.edition-grid{width:100%;max-width:none;margin:0}.edition-cover{position:relative;align-self:stretch;min-height:700px;overflow:hidden;background:var(--muted-foreground)}.edition-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 50%}.edition-copy{min-width:0;padding:48px 0 0}.edition-copy h2{font-size:clamp(2.6rem,3.8vw,3.5rem);overflow-wrap:normal}@media(max-width:1150px){.edition-grid{gap:40px}.edition-cover{min-height:660px}.edition-copy{padding-top:36px}}@media(max-width:850px){.edition-grid{gap:28px}.edition-copy h2{font-size:2.4rem}}@media(min-width:601px) and (max-width:1000px){.edition-grid{grid-template-columns:minmax(0,1fr);gap:0}.edition-cover{min-height:0;aspect-ratio:1}.edition-copy{padding-top:36px}}@media(max-width:600px){.edition-grid{grid-template-columns:minmax(0,1fr);gap:0;padding:0 0 56px}.edition-cover{min-height:0;aspect-ratio:4/5;width:100%;max-width:none;margin:0}.edition-copy{padding-top:28px}.edition-copy h2{font-size:2.8rem;max-width:none}}.creator-postulate{position:relative;padding:90px 0;background:#fff;border-block:1px solid var(--border)}.section-anchor{position:absolute;top:0}.postulate-intro{display:grid;grid-template-columns:1fr 1.1fr;gap:80px}.postulate-intro h2{font-size:clamp(2.6rem,4.2vw,3.75rem);line-height:1.12;max-width:580px}.postulate-premises li,.postulate-premises p{font-size:1rem;line-height:1.85;color:var(--ink)}.postulate-premises .postulate-lead{font-size:1.5rem;line-height:1.4;color:var(--ink);margin-bottom:18px}.postulate-premises ul{margin:20px 0;padding-left:22px;list-style:disc}.postulate-premises li{padding-left:5px;margin-bottom:12px}.postulate-premises .postulate-clarification{font-size:.875rem;color:var(--muted-foreground)}.postulate-comparison{margin-top:60px}.postulate-comparison>h3{font-size:1.65rem;line-height:1.4;margin-bottom:24px;letter-spacing:-.02em}.postulate-table-wrap{overflow-x:auto}.postulate-comparison table{width:100%;border-collapse:collapse;table-layout:fixed;text-align:left;font-size:1rem;line-height:1.75}.postulate-comparison td,.postulate-comparison th{padding:22px 24px;vertical-align:top;border-bottom:1px solid var(--border)}.postulate-comparison thead th{font-weight:500;background:var(--brand-tint);border-top:1px solid var(--muted-foreground)}.postulate-comparison th:first-child{width:18%;padding-left:0;background:#fff;font-weight:500}.postulate-comparison td{color:var(--ink);width:41%}.postulate-comparison td:last-child,.postulate-comparison thead th:last-child{background:var(--brand-tint);color:var(--ink)}.postulate-source{margin-top:16px;font-size:.8125rem;line-height:1.8;color:var(--muted-foreground)}.postulate-source a{text-decoration:underline;text-underline-offset:3px;color:var(--brand-ink)}.postulate-value{margin-top:56px;max-width:930px;border-left:3px solid var(--brand);padding-left:28px}.postulate-value .mono-label{color:var(--brand-ink);margin-bottom:14px}.postulate-value h3{font-size:clamp(1.6rem,2.5vw,2.15rem);line-height:1.35;margin-bottom:20px;letter-spacing:-.025em}.postulate-value>p:not(.mono-label){font-size:1rem;line-height:1.9;max-width:850px}.postulate-value .text-link{margin-top:22px}@media(max-width:850px){.postulate-intro{grid-template-columns:1fr;gap:32px}.postulate-comparison{margin-top:40px}.postulate-comparison td,.postulate-comparison th{padding:18px}.creator-postulate{padding-block:65px}}@media(max-width:600px){.postulate-comparison table{min-width:650px}.postulate-comparison th:first-child{width:17%}.postulate-intro h2{font-size:2.7rem}.postulate-value{padding-left:20px;margin-top:38px}.postulate-source{font-size:.8125rem}.postulate-comparison>h3{font-size:1.4rem}}.two-roads{background:#fff;padding:90px 0;border-bottom:1px solid var(--border)}.roads-intro{display:grid;grid-template-columns:1fr 1.1fr;gap:80px;align-items:end}.roads-intro h2{font-size:clamp(2.7rem,4.5vw,4rem);line-height:1.1;letter-spacing:-.04em}.roads-intro .roads-lead{font-size:1.2rem;line-height:1.85;color:var(--ink);max-width:650px}.two-roads .roads-kicker{font-size:.875rem;line-height:1.5;letter-spacing:.06em;color:var(--muted-foreground);margin-bottom:18px}.roads-comparison{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px;margin-top:56px}.roads-comparison article{border-top:3px solid var(--muted-foreground);padding-top:26px;min-width:0}.roads-comparison .road-rooted{border-color:var(--brand)}.roads-comparison .road-rooted .roads-kicker{color:var(--brand-ink)}.roads-comparison h3{font-size:clamp(1.65rem,2.7vw,2.2rem);line-height:1.2;letter-spacing:-.025em;margin-bottom:24px}.two-roads li,.two-roads p{font-size:1rem;line-height:1.85;color:var(--ink)}.roads-comparison ul{padding-left:20px;list-style:disc;margin:22px 0}.roads-comparison li{padding-left:5px;margin-bottom:12px}.roads-comparison .road-closing{color:var(--ink);font-weight:500;border-top:1px solid var(--border);padding-top:20px;margin-top:24px}.roads-warning{display:grid;grid-template-columns:1fr 1.1fr;gap:64px;margin-top:64px;padding:38px 40px;background:var(--brand-tint);border-left:3px solid var(--muted-foreground)}.roads-warning h3{font-size:clamp(1.7rem,3vw,2.65rem);line-height:1.2;letter-spacing:-.03em}.roads-warning p+p{margin-top:16px}.roads-history{margin-top:64px}.roads-history>h3{font-size:1.65rem;line-height:1.3;margin-bottom:30px}.roads-history-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px}.roads-history-grid article{border-top:1px solid var(--border);padding-top:22px}.roads-history-grid .roads-kicker{font-size:.8125rem;letter-spacing:.03em;margin-bottom:12px}.roads-history-grid h4,.roads-responsibility h4{font-size:1.2rem;line-height:1.4;letter-spacing:-.02em;font-weight:500;margin:0 0 16px;color:var(--ink)}.roads-test{display:grid;grid-template-columns:1fr 1fr;gap:64px;margin-top:64px;padding-top:48px;border-top:1px solid var(--border)}.roads-test h3{font-size:1.75rem;line-height:1.3;margin-bottom:26px}.roads-questions p{margin-top:22px}.roads-questions strong{display:block;font-size:1.45rem;font-weight:500;line-height:1.4;color:var(--brand-ink);margin-bottom:8px}.roads-responsibility p+p{margin-top:16px}.two-roads .roads-source{font-size:.8125rem;line-height:1.7;color:var(--muted-foreground);margin-top:36px}.book-page-heading .book-jump{margin-left:22px}@media(max-width:1000px){.roads-comparison,.roads-intro,.roads-test,.roads-warning{gap:36px}.roads-history-grid{gap:24px}.book-page-heading .book-jump{float:none;display:inline-flex;margin:0 22px 22px 0}}@media(max-width:700px){.two-roads{padding-block:60px}.roads-comparison,.roads-history-grid,.roads-intro,.roads-test,.roads-warning{grid-template-columns:minmax(0,1fr);gap:30px}.roads-intro h2{font-size:2.7rem}.roads-intro .roads-lead{font-size:1.0625rem}.roads-comparison{margin-top:36px}.roads-warning{padding:28px 24px}.roads-history,.roads-test,.roads-warning{margin-top:40px}.roads-test{padding-top:34px}.roads-history>h3{margin-bottom:24px}}.ebook-offer{margin-top:28px;padding-top:24px;border-top:1px solid var(--border)}.ebook-offer-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:12px}.ebook-offer-heading>span{display:flex;align-items:center;gap:10px;font-size:1rem}.ebook-offer-heading>strong{font-size:2rem;font-weight:400;letter-spacing:-.035em}.ebook-offer>p{font-size:.9375rem;line-height:1.7}.ebook-offer .book-inquiry{width:100%;margin-top:22px;font-size:1rem;justify-content:center}.ebook-offer .book-inquiry:disabled{cursor:not-allowed;background:var(--brand-tint);color:var(--ink);border:1px solid var(--border);transform:none}.ebook-offer .ordering-status{margin-top:12px}.ebook-contact{margin-top:18px;font-size:.875rem;overflow-wrap:anywhere}.history-reading{padding-block:100px;background:#fff;border-top:1px solid var(--border)}.history-reading-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:70px;align-items:start}.history-reading h2{font-size:clamp(2rem,3.6vw,3.5rem);line-height:1.2;letter-spacing:-.035em}.history-reading-copy{display:grid;gap:24px;min-width:0}.history-reading-copy p{font-size:1.0625rem;line-height:1.9}.history-reading-copy .history-reading-takeaway{border-left:3px solid var(--brand);padding-left:22px;color:var(--foreground);font-size:1.1875rem}.history-reading .section-label{font-size:.875rem;flex-wrap:wrap;gap:8px 20px}html[lang=zh-CN] .history-reading h2{line-height:1.5;letter-spacing:0}@media(max-width:800px){.history-reading{padding-block:65px}.history-reading-grid{grid-template-columns:1fr;gap:30px}.history-reading-copy p{font-size:1rem}.history-reading-copy .history-reading-takeaway{font-size:1.125rem}}@media(min-width:1001px){.identity-grid:has(.identity-book-expanded){grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px;min-height:clamp(600px,48vw,700px);padding-block:0}.identity-grid:has(.identity-book-expanded) .identity-copy{min-width:0;padding-block:48px}.identity-grid .identity-book-expanded{position:relative;inset:auto;width:100%;height:100%;max-width:none;align-self:stretch;justify-self:stretch;margin:0}}.case-gallery{margin-top:64px;border-top:1px solid var(--border);padding-top:40px}.case-gallery-heading h3{font-size:2rem;line-height:1.25;margin:0 0 12px}.case-gallery-heading p{color:var(--muted-foreground);line-height:1.7;margin:0}.case-group{margin-top:42px;min-width:0}.case-group+.case-group{padding-top:36px;border-top:1px solid var(--border)}.case-group-heading{display:flex;justify-content:space-between;align-items:baseline;gap:20px;margin-bottom:20px}.case-group h4{font-size:1.35rem;line-height:1.4;font-weight:500;margin:0}.case-swipe-hint{font-size:.8rem;color:var(--muted-foreground)}.case-carousel{position:relative;display:flex;overflow-x:auto;scroll-snap-type:x mandatory;overscroll-behavior-x:contain;touch-action:pan-x pan-y;scrollbar-width:none}.case-carousel::-webkit-scrollbar{display:none}.case-carousel-controls button:focus-visible,.case-carousel:focus-visible{outline:2px solid var(--brand);outline-offset:4px}.case-slide{flex:0 0 100%;min-width:0;scroll-snap-align:start;scroll-snap-stop:always;margin:0}.case-photo-frame{height:clamp(340px,48vw,650px);background:#f4f5f2;display:flex;align-items:center;justify-content:center}.case-photo-frame img{display:block;width:100%;height:100%;object-fit:contain}.case-slide figcaption{padding-top:13px;font-size:.875rem;color:var(--muted-foreground);line-height:1.65}.case-credit{display:block;font-size:.75rem;margin-top:5px}.case-carousel-controls{gap:16px;margin-top:18px}.case-arrow,.case-carousel-controls{display:flex;align-items:center;justify-content:center}.case-arrow{width:44px;height:44px;border:1px solid var(--border);border-radius:50%;background:white;color:var(--ink);cursor:pointer}.case-arrow:disabled{opacity:.3;cursor:default}.case-arrow:not(:disabled):hover{border-color:var(--brand);color:var(--brand)}.case-dots{display:flex}.case-dots button{display:flex;align-items:center;justify-content:center;width:36px;height:44px;border:0;background:transparent;cursor:pointer}.case-dots span{width:7px;height:7px;border-radius:50%;background:#bbb}.case-dots [aria-pressed=true] span{background:var(--brand);width:9px;height:9px}.case-count{font-size:.8rem;color:var(--muted-foreground);font-variant-numeric:tabular-nums;min-width:38px;text-align:center}@media(max-width:700px){.case-gallery{margin-top:36px;padding-top:28px}.case-gallery-heading h3{font-size:1.6rem}.case-group{margin-top:30px}.case-group h4{font-size:1.2rem}.case-group-heading{display:block}.case-swipe-hint{display:block;margin-top:8px}.case-group+.case-group{padding-top:28px}.case-photo-frame{height:320px;height:min(60svh,360px)}.case-carousel-controls{gap:8px}.case-dots button{width:30px}.case-dots{flex:1;min-width:0;max-width:240px}.case-dots button{flex:1;min-width:0;width:auto}.case-arrow,.case-count{flex-shrink:0}.case-dots-many{display:grid;grid-template-columns:repeat(6,minmax(0,1fr))}.case-dots-many button{width:100%;height:32px}}.case-project-video{margin:28px 0 0;width:100%;min-width:0}.case-project-video video{display:block;width:100%;height:auto;aspect-ratio:910/512;background:#fff;object-fit:contain}.case-project-video video:focus-visible{outline:2px solid var(--brand);outline-offset:4px}.postulate-comparison{--brand-tint:color-mix(in srgb,var(--brand) 20%,#fff 80%)}@font-face{font-family:Dohome Sans;src:url(/fonts/dohome-sans-regular.woff) format("woff");font-weight:400;font-style:normal;font-display:swap;unicode-range:u+2e80-9fff,u+f900-faff,u+fe30-fe4f,u+ff00-ffef}@font-face{font-family:Dohome Sans;src:url(/fonts/dohome-sans-medium.woff) format("woff");font-weight:500 600;font-style:normal;font-display:swap;unicode-range:u+2e80-9fff,u+f900-faff,u+fe30-fe4f,u+ff00-ffef}@font-face{font-family:Dohome Sans;src:url(/fonts/dohome-sans-bold.woff) format("woff");font-weight:700 900;font-style:normal;font-display:swap;unicode-range:u+2e80-9fff,u+f900-faff,u+fe30-fe4f,u+ff00-ffef}:root{--brand:#4ea834;--brand-light:#64b740;--brand-gray:#717272;--ink:#202020;--brand-ink:var(--ink);--brand-tint:#f5f5f5;--background:#fff;--foreground:var(--ink);--primary:var(--brand);--primary-foreground:var(--ink);--muted:#f5f5f5;--muted-foreground:#626262;--border:#dedede;--ring:var(--brand);--accent:#f5f5f5;--accent-foreground:var(--ink);--card-foreground:var(--ink);--secondary-foreground:var(--ink);--font-brand:"Dohome Sans","Source Han Sans SC",sans-serif;--font-numeric:var(--font-brand)}body,button,html,input,select,textarea{font-family:var(--font-brand)}body{color:var(--ink);background:#fff}h1,h2,h3,h4,h5,h6{font-family:var(--font-brand);font-weight:500}:lang(zh),:lang(zh-CN){letter-spacing:normal}.brand img{display:block;width:100px;height:auto}.brand{padding:7px 0}.desktop-nav a[aria-current]{color:var(--ink)}.header-contact,.resources-back,.text-link{color:var(--ink);border-color:var(--brand)}.button.primary,.identity-actions .button.light{background:var(--brand);border-color:var(--brand);color:var(--ink)}.button.primary:hover,.identity-actions .button.light:hover{background:var(--brand-light);border-color:var(--brand-light)}.language-tabs>[role=tab][data-state=active]{background:var(--brand)!important;color:var(--ink)!important;box-shadow:none}.language-tabs>[role=tab]{min-height:48px;font-family:var(--font-brand)}.preview-language button[aria-pressed=true]{background:var(--brand);color:var(--ink)}.preview-nav a[aria-current=true]{color:var(--ink);border-color:var(--brand);background:var(--brand-tint)}.preview-eyebrow,.preview-read-link{color:var(--ink)!important}.preview-read-link{border-color:var(--brand)}.edition-copy h2,.preview-end,.preview-notes,.preview-prose,.preview-title,.reader-resources h2,.resources-heading h1{font-family:var(--font-brand)}.edition-copy h2{line-height:1.2;letter-spacing:-.025em}.edition-description,.resources-downloads p,.resources-note{color:var(--muted-foreground)}.book-breadcrumb,.book-jump,.credential-label,.edition-status,.eyebrow,.footer-main p,.identity-role,.mono-label,.ordering-status,.section-label{font-size:.875rem;line-height:1.75}.section-label{letter-spacing:.06em;flex-wrap:wrap;gap:8px 20px}.book-breadcrumb,.section-label>span{display:none}.creation-number,.ebook-offer-heading strong,.experience-stat strong,.resources-index,.service-number,.story-date{font-family:var(--font-numeric);font-variant-numeric:tabular-nums}.ebook-purchase{margin-top:16px;width:100%;min-width:0}.ebook-purchase .shopify-buy__product{max-width:none!important}.ebook-purchase .shopify-buy__btn-wrapper,.ebook-purchase .shopify-buy__product{width:100%!important;margin:0!important}.ebook-purchase .shopify-buy__btn{box-sizing:border-box;width:100%!important;min-height:56px;font-family:var(--font-brand)!important;font-weight:500!important;line-height:1.5!important;background:var(--brand)!important;color:var(--ink)!important;border:1px solid var(--brand)!important;border-radius:0!important;white-space:normal!important}.ebook-purchase .shopify-buy__btn:hover{background:var(--brand-light)!important;border-color:var(--brand-light)!important}.ebook-purchase .shopify-buy__btn:focus-visible{outline:2px solid var(--ink)!important;outline-offset:4px}.ebook-purchase .ordering-status{font-size:.875rem;color:var(--muted-foreground);line-height:1.8;margin-top:16px}.reader-resources{color:var(--ink)}.resources-downloads a,.resources-report>a{border-color:var(--brand);border-radius:0;color:var(--ink);min-height:48px;font-weight:500}.resources-downloads a:hover,.resources-report>a:hover{background:var(--brand);color:var(--ink)}.resources-language select{border-radius:0;color:var(--ink)}.resources-empty{border-color:var(--brand);background:var(--brand-tint)}.roads-warning{border-left-color:var(--brand-gray)}:where(a,button,select):focus-visible{outline:2px solid var(--ink);outline-offset:4px}@media(max-width:700px){.brand img{width:85px}.header-contact{font-size:.875rem}.menu-toggle{min-width:44px;min-height:44px}.book-page-heading{padding-block:28px}.book-page-heading .book-jump{font-size:.875rem;min-height:44px;margin-bottom:8px;align-items:center}.edition-selector{gap:12px;flex-wrap:wrap}.edition-selector>p{font-size:.875rem;letter-spacing:normal}.edition-copy h2{font-size:clamp(2rem,8vw,2.8rem)}.ebook-contact{font-size:.875rem;overflow-wrap:anywhere}.preview-toolbar{flex-wrap:wrap}.section-label{margin-bottom:22px}.footer-links{overflow-wrap:anywhere}.identity-role{letter-spacing:normal}}.book-preview .preview-language button[aria-pressed=true]{background:var(--brand);color:var(--ink)}.book-preview .preview-nav a[aria-current=true]{color:var(--ink);border-color:var(--brand);background:var(--brand-tint)}.book-preview .preview-contents em,.book-preview .preview-notes h4,.book-preview .preview-prose a{color:var(--ink)}.book-preview .preview-end .preview-next{background:var(--brand);color:var(--ink)}.reader-resources .resources-downloads a,.reader-resources .resources-report>a{color:var(--ink);border-color:var(--brand);border-radius:0}.reader-resources .resources-downloads a:hover,.reader-resources .resources-report>a:hover{background:var(--brand);color:var(--ink)}.reader-resources .resources-empty{border-color:var(--brand)}::selection{background:var(--brand-light);color:var(--ink)}@media(max-width:850px){.site-header .header-inner{width:calc(100% - 32px);height:72px;min-height:72px;flex-wrap:nowrap;justify-content:space-between;gap:12px;padding-block:0}.site-header .brand{padding:3px 0;flex-shrink:0}.edition-selector{top:72px}html{scroll-padding-top:100px}.site-header .brand img{width:64px}.site-header .desktop-nav{display:flex;flex:0 1 auto;justify-content:flex-end;align-items:center;gap:12px;margin:0;font-size:.875rem;line-height:1.4;min-width:0}.site-header .desktop-nav a{display:inline-flex;align-items:center;min-height:44px;white-space:nowrap}}@media(max-width:360px){.site-header .header-inner{width:calc(100% - 24px);gap:8px}.site-header .brand img{width:52px}.site-header .desktop-nav{gap:8px}}.header-language{flex-shrink:0}.header-language select{width:70px;min-height:44px;border:0;border-radius:0;box-shadow:none;padding:8px 20px 8px 4px;font-family:var(--font-brand);font-size:14px;color:var(--ink);cursor:pointer}.header-language [data-slot=native-select-icon]{right:2px;width:12px;color:var(--brand);opacity:1}@media(max-width:850px){.site-header .header-inner{width:calc(100% - 24px);gap:8px}.site-header .brand img{width:48px}.site-header .desktop-nav{gap:10px;margin-left:auto;font-size:14px}.header-language select{width:50px;padding-left:0;padding-right:14px}}@media(max-width:360px){.site-header .header-inner{width:calc(100% - 16px);gap:6px}.site-header .brand img{width:40px}.site-header .desktop-nav{gap:7px;font-size:12px}.header-language select{width:46px;font-size:12px}}.header-language{position:relative}.header-language-label{position:absolute;inset-inline-start:4px;top:50%;transform:translateY(-50%);font-size:14px;pointer-events:none}.header-language select{color:transparent}.header-language select option{color:var(--ink)}.header-language select option:disabled{color:var(--muted-foreground)}.header-language:focus-within{outline:2px solid var(--brand);outline-offset:2px}@media(max-width:360px){.header-language-label{font-size:12px;inset-inline-start:0}}.nav-label-mobile{display:none}@media(max-width:650px){.site-header .header-inner{width:calc(100% - 16px);height:64px;min-height:64px;flex-wrap:nowrap;gap:6px;padding-block:0}.site-header .brand img{width:40px}.site-header[lang] .header-inner .desktop-nav{display:flex;order:0;flex:1;min-width:0;width:auto;justify-content:center;margin:0;gap:8px;font-size:14px}.site-header .header-language{margin:0;flex:0 0 38px}.site-header .header-language select{width:38px;min-height:44px;padding:8px 12px 8px 0}.site-header .header-language-label{inset-inline-start:0;font-size:13px}.site-header .desktop-nav a{white-space:nowrap;text-align:center;min-height:44px}.site-header .nav-label-desktop{display:none}.site-header .nav-label-mobile{display:inline}.book-page-heading>.section-label{display:none}.edition-selector{top:64px}.creation-intro h2,.edition-copy h2,.identity-copy h1,.owner-heading h2,.waste-heading h2{overflow-wrap:anywhere;hyphens:auto}html{scroll-padding-top:90px}.book-preview,.preview-article{scroll-margin-top:90px}}.policy-page{max-width:860px;padding-top:64px;padding-bottom:80px}.policy-page h1{font-size:clamp(30px,5vw,48px);line-height:1.2;margin-bottom:40px}.policy-page section{margin:32px 0}.policy-page h2{font-size:22px;line-height:1.4;margin-bottom:12px}.policy-page p{font-size:17px;line-height:1.85;overflow-wrap:anywhere}.checkout-fallback,.policy-links a,.policy-page a{text-decoration:underline;text-underline-offset:4px}.policy-links{display:flex;gap:10px 24px;flex-wrap:wrap;font-size:14px;line-height:1.6;margin:20px 0}.checkout-fallback{display:inline-block;margin:16px 0 0;font-weight:600}.preview-nav a{text-decoration:none}.preview-contents li>a{display:flex;text-decoration:none}.preview-end a{display:inline-block;padding:10px 0}.construction-intro{padding-block:clamp(40px,6vw,80px)}.construction-intro h1{font-size:clamp(2.5rem,5vw,5rem);line-height:1.15;max-width:1000px;margin:20px 0;overflow-wrap:anywhere}.construction-intro>p:not(.section-label){font-size:1.2rem;line-height:1.85;max-width:820px;margin-bottom:24px}.reader-faq{padding-block:clamp(48px,7vw,90px);border-top:1px solid var(--border);scroll-margin-top:100px}.reader-faq-intro{max-width:760px;margin-bottom:32px}.reader-faq-intro h2{font-size:clamp(2rem,3.5vw,3rem);line-height:1.2;margin:16px 0;letter-spacing:-.02em}.reader-faq-intro>p:last-child{font-size:1rem;line-height:1.8}.reader-faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:clamp(28px,5vw,72px)}.reader-faq-grid article{padding:28px 0;border-top:1px solid var(--border);min-width:0}.reader-faq-grid h3{font-size:1.2rem;line-height:1.5;margin:0 0 16px;font-weight:600;letter-spacing:0}.reader-faq-grid p{font-size:1rem;line-height:1.85;overflow-wrap:anywhere}.reader-faq-grid .reader-faq-source{font-size:.875rem;color:var(--muted-foreground);margin:14px 0 0}.reader-faq-links{display:flex;flex-wrap:wrap;gap:16px 32px;margin-top:12px}.reader-faq-links a{display:inline-flex;align-items:center;min-height:44px;color:var(--brand);text-decoration:underline;text-underline-offset:5px;font-size:1rem}.edition-facts{font-size:.9375rem!important;line-height:1.8!important;font-variant-numeric:tabular-nums;color:var(--muted-foreground)}@media(max-width:760px){.reader-faq-grid{grid-template-columns:minmax(0,1fr)}.reader-faq-intro h2{letter-spacing:0}}:root{--font-brand:Arial,Helvetica,sans-serif}html:lang(zh){--font-brand:"Dohome Sans","Source Han Sans SC",Arial,sans-serif}.footer-license{padding-block:20px;font-size:14px;line-height:1.7;overflow-wrap:anywhere;border-top:1px solid var(--border)}.footer-license a{text-decoration:underline;text-underline-offset:4px}.checkout-direct{display:inline-flex;justify-content:center;align-items:center;min-height:52px;padding:14px 24px;text-decoration:none;font-size:16px;line-height:1.5}.ebook-purchase>.checkout-direct{width:100%}.book-first-buy{padding-bottom:24px}.preview-purchase{padding:24px 0;border-top:1px solid var(--border);margin-top:24px}.construction-achievements{margin:32px 0;padding:24px;border-left:3px solid var(--brand);background:#f5f5f5}.construction-achievements p{margin:8px 0;line-height:1.8}@media(max-width:650px){.book-first-buy .checkout-direct,.preview-purchase .checkout-direct{width:100%}}.reader-signup{padding-block:48px;border-top:1px solid var(--border);line-height:1.8}.reader-signup h2{font-size:1.8rem}.reader-signup>p{max-width:740px;margin-block:16px}.reader-signup form{max-width:600px}.reader-signup input[type=email]{display:block;width:100%;border:1px solid var(--border);padding:12px;font-size:16px;margin-block:8px 16px}.reader-consent{display:flex;align-items:flex-start;gap:12px;margin-bottom:18px}.reader-consent input{margin-top:8px}.reader-signup button{padding:12px 24px;min-height:48px}.reader-signup a{text-decoration:underline}html[lang=ar] body{line-height:1.8}html[lang=ar] h1,html[lang=ar] h2,html[lang=ar] h3,html[lang=ar] p{letter-spacing:normal}html[lang=ar] h1,html[lang=ar] h2{line-height:1.5}html[dir=rtl] .header-language select{padding-inline:4px 20px}html[dir=rtl] .header-language [data-slot=native-select-icon]{right:auto;left:2px}html[dir=rtl] .profile-story blockquote{border-left:0;border-right:3px solid var(--brand);padding-left:0;padding-right:24px}html[dir=rtl] .catalog-confirm-details dd,html[dir=rtl] .catalog-edition-availability{text-align:left}html[dir=rtl] .catalog-pending{border-left:0;border-right:3px solid var(--brand)}html[dir=rtl] .preview-nav a{text-align:right;border-left:0;border-right:2px solid transparent}html[dir=rtl] .preview-nav a[aria-current=true]{border-right-color:var(--brand)}html[dir=rtl] .catalog-facts,html[dir=rtl] .catalog-price strong,html[dir=rtl] a[href^="mailto:"],html[dir=rtl] a[href^="tel:"]{direction:ltr;unicode-bidi:isolate;display:inline-block}.catalog-preview-unavailable{padding-block:40px}.catalog-preview-unavailable h2{font-size:clamp(22px,3vw,30px);line-height:1.5}.catalog-preview-unavailable>p{margin-block:16px;line-height:1.8}.catalog-preview-unavailable .preview-language{width:fit-content;margin-bottom:18px}@media(max-width:650px){html[dir=rtl] .header-language select{padding-inline:0 12px}.site-header[lang=el] .desktop-nav,.site-header[lang=ru] .desktop-nav,.site-header[lang=uk] .desktop-nav{font-size:12px!important;gap:6px!important}.site-header[lang=ar] .desktop-nav{font-size:13px!important}.site-header[lang=el] .desktop-nav a,.site-header[lang=ru] .desktop-nav a,.site-header[lang=uk] .desktop-nav a{white-space:normal;line-height:1.25}.catalog-dialog h2{overflow-wrap:anywhere}}html[lang=ar]{--font-brand:"Noto Sans Arabic","Segoe UI",Tahoma,sans-serif}html[lang=ko]{--font-brand:"Source Han Sans KR","Noto Sans CJK KR","Apple SD Gothic Neo","Malgun Gothic",sans-serif}html[lang=ja]{--font-brand:"Source Han Sans JP","Noto Sans CJK JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif}.site-header .header-language{position:relative;display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;margin:0;padding:0 36px 0 10px;min-height:44px;direction:ltr;border:1px solid var(--brand);background:#fff}.site-header .header-language [data-slot=native-select-wrapper]{position:absolute;inset:0;width:100%;height:100%}.site-header .header-language select{width:100%;height:100%;min-height:44px;padding:0;border:0;border-radius:0;box-shadow:none;font-size:14px;color:transparent;direction:ltr}.site-header .header-language-label{position:static;transform:none;font-size:14px;line-height:1.4;color:var(--ink);white-space:nowrap;letter-spacing:0}.site-header .header-language-globe{position:static;transform:none;width:18px;height:18px;flex-shrink:0;color:var(--brand);pointer-events:none}.site-header .header-language [data-slot=native-select-icon]{right:10px;left:auto;width:14px;color:var(--brand);opacity:1}.site-header .header-language:hover{background:var(--brand-tint)}.site-header .header-language:focus-within{outline:2px solid var(--brand);outline-offset:3px}@media(max-width:650px){.site-header .header-language{gap:6px;padding-inline:6px 28px}.site-header .header-language-globe{width:15px;height:15px}.site-header .header-language [data-slot=native-select-icon]{right:6px;width:12px}}@media(max-width:400px){.site-header .header-inner{gap:4px}.site-header .brand img{width:32px}.site-header[lang] .header-inner .desktop-nav{gap:6px;font-size:13px}.site-header .header-language select,.site-header .header-language-label{font-size:13px}}html[dir=rtl] .site-header .header-language [data-slot=native-select-icon]{right:10px;left:auto}@media(max-width:650px){html[dir=rtl] .site-header .header-language [data-slot=native-select-icon]{right:6px;left:auto}}.preview-intro,.resources-heading{grid-template-columns:minmax(0,1fr)}.reader-review-entry{padding-block:20px}.reader-review-toggle{display:inline-flex;align-items:center;gap:12px;max-width:100%;min-height:48px;padding:12px 20px;border:1px solid var(--brand);border-radius:0;background:#fff;color:var(--ink);font:500 1rem/1.5 var(--font-brand);letter-spacing:normal;text-align:start;box-shadow:none;transition:background-color .15s}.reader-review-label{min-width:0;overflow-wrap:anywhere}.reader-review-icon{flex-shrink:0;color:var(--brand)}.reader-review-state{flex-shrink:0;margin-inline-start:12px;color:var(--ink)}.reader-review-toggle:active,.reader-review-toggle[aria-expanded=true]{background:var(--brand-tint)}.reader-review-toggle:focus-visible{outline:2px solid var(--ink);outline-offset:4px}@media(hover:hover){.reader-review-toggle:hover{background:var(--brand-tint)}}.reader-review-entry .reader-signup{margin-top:20px;padding-block:20px 32px}.reader-review-entry .reader-signup>p{margin-block:0 20px}.reader-review-entry input:not([type=checkbox]),.reader-review-entry textarea{display:block;width:100%;border:1px solid var(--border);border-radius:0;background:#fff;color:inherit;padding:12px;font:inherit;font-size:16px;margin-block:8px 16px}.reader-review-entry input:focus-visible,.reader-review-entry textarea:focus-visible{outline:2px solid var(--brand);outline-offset:2px}.reader-review-entry textarea{resize:vertical;min-height:150px}.reader-review-entry [hidden]{display:none}.reader-review-disclosure{font-size:.9rem;line-height:1.6}@media(max-width:650px){.reader-review-toggle{width:100%}.reader-review-label{flex:1}.reader-review-entry .reader-signup{padding-block:20px 24px}}@media(prefers-reduced-motion:reduce){.reader-review-toggle{transition:none}}@font-face{font-family:Dohome Sans TC;src:url(/fonts/dohome-sans-tc-regular.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:Dohome Sans TC;src:url(/fonts/dohome-sans-tc-medium.woff2) format("woff2");font-weight:500 600;font-style:normal;font-display:swap}@font-face{font-family:Dohome Sans TC;src:url(/fonts/dohome-sans-tc-bold.woff2) format("woff2");font-weight:700 900;font-style:normal;font-display:swap}[lang=zh-Hant],html:lang(zh-Hant){--font-brand:"Dohome Sans TC","Source Han Sans TC","Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;--font-numeric:var(--font-brand);font-family:var(--font-brand);font-synthesis:none;line-break:strict;word-break:normal}html:lang(zh-Hant) :is(h1,h2,h3,h4,h5,h6){font-family:var(--font-brand);font-weight:500;letter-spacing:normal;line-height:1.4}html:lang(zh-Hant) :is(.section-label,.eyebrow,.identity-role,.preview-eyebrow,.preview-toolbar,.catalog-status,.catalog-subtitle,.button){letter-spacing:normal}html:lang(zh-Hant) :is(.preview-prose,.preview-prose p){line-height:2}html:lang(zh-Hant) :is(.catalog-description,.identity-description,.reader-faq-answer,.preview-notes){line-height:1.9}html:lang(zh-Hant) .preview-title{line-height:1.5}.author-article{padding-block:24px;border-top:1px solid var(--border);border-bottom:1px solid var(--border);font-family:var(--font-brand)}.author-article>a,.author-social{display:inline-flex;align-items:center;min-height:44px;color:var(--ink);font:500 1rem/1.6 var(--font-brand);text-decoration:underline;text-decoration-color:var(--brand);text-underline-offset:5px;overflow-wrap:anywhere}.author-article p{margin-top:4px;font-size:.875rem;line-height:1.7;color:var(--muted-foreground)}.book-author .author-social{display:flex;width:fit-content;margin-top:16px}.footer-bottom{flex-wrap:wrap;gap:16px}.reader-signup-compact{width:100%;max-width:none;margin-top:24px;padding-block:28px;font-family:var(--font-brand)}.reader-signup-compact h3{font-size:1.5rem;line-height:1.5;letter-spacing:normal}.reader-signup-compact label,.reader-signup-compact p{font-size:1rem;line-height:1.8}.reader-signup input[type=email]{border-radius:0;background:#fff;color:var(--ink);font-family:var(--font-brand);min-height:48px}.reader-signup input[type=email]:focus-visible{outline:2px solid var(--brand);outline-offset:2px}.reader-signup .reader-consent input{accent-color:var(--brand);flex-shrink:0;width:18px;height:18px}.reader-signup .reader-signup-withdraw{font-size:.875rem}.reader-signup button{border-radius:0;font-family:var(--font-brand)}@media(max-width:650px){.reader-signup-compact button{width:100%}.author-article{padding-block:20px}}html:lang(zh-Hant) .book-catalog,html:lang(zh-Hant) .book-catalog [lang=zh-Hant]{--font-brand:Arial,"Dohome Sans TC","Source Han Sans TC","Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;--font-numeric:var(--font-brand);font-family:var(--font-brand);line-break:auto}html:lang(zh-Hant) .book-catalog .catalog-copy h2{line-height:1.22;letter-spacing:-.02em}html:lang(zh-Hant) .book-catalog .catalog-description{line-height:1.85}.construction-contact{min-width:0;font-family:var(--font-brand)}.construction-contact-identity{padding-bottom:20px;border-bottom:1px solid var(--border)}.construction-contact-identity p{color:var(--ink);line-height:1.6;overflow-wrap:anywhere}.construction-contact-identity p:first-child{font-weight:500;font-size:1.125rem;margin-bottom:10px}.construction-contact-identity span{color:var(--muted-foreground);margin-inline-end:10px}.construction-contact-license{font-size:.875rem;margin-top:8px}.construction-contact .contact-main strong{overflow-wrap:anywhere}.construction-contact-office{padding-top:24px;border-top:1px solid var(--border)}.construction-contact-office p{display:flex;align-items:center;gap:10px;color:var(--muted-foreground)}.construction-contact-office address{font-style:normal;color:var(--ink);line-height:1.6;margin:10px 0 14px;overflow-wrap:anywhere}.construction-contact-office .text-link{min-height:44px;width:fit-content}@media(max-width:600px){.construction-contact .contact-main strong{font-size:clamp(20px,5.8vw,25px)}.construction-contact-identity p:first-child{font-size:1rem}}.license-credentials{grid-template-columns:minmax(0,1fr) minmax(0,2fr)}.license-showcase{grid-template-columns:minmax(0,1fr);gap:32px}.license-display{width:100%;max-width:960px;margin:0}.license-display img{display:block;width:100%;height:auto}@media(max-width:600px){.license-credentials{grid-template-columns:minmax(0,1fr)}.license-showcase{gap:24px}}