:root{color:#101010;font-synthesis:none;--orange:#ff9000;--black:#000;--white:#fff;--dark:#101010;--mid:#212121;--soft:#2f2f2f;--muted:#c6c6c6;background:#fff;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{background:var(--white);min-width:0;margin:0}body,button,input,select{font:inherit;letter-spacing:0}img,video{max-width:100%;display:block}a{color:inherit}p{line-height:1.7}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:0;line-height:1.12}code,pre{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}:focus-visible{outline:3px solid var(--orange);outline-offset:3px}.skip-link{z-index:100;color:var(--black);background:var(--orange);padding:10px 14px;position:fixed;top:8px;left:8px;transform:translateY(-160%)}.skip-link:focus{transform:none}.site-header{z-index:20;justify-content:space-between;align-items:center;gap:24px;width:min(100% - 48px,1200px);min-height:72px;margin-inline:auto;display:flex;position:relative}.brand{color:var(--black);align-items:center;gap:10px;font-size:1.1rem;font-weight:800;text-decoration:none;display:inline-flex}.brand img{width:31px;height:28px}.site-header nav{gap:4px;display:flex}.site-header nav a{color:var(--soft);border-radius:6px;padding:9px 11px;font-size:.88rem;font-weight:650;text-decoration:none}.site-header nav a:hover,.site-header nav a[aria-current=page]{color:var(--black);background:var(--orange)}.site-footer{color:var(--white);background:var(--black)}.footer-shell{border-top:1px solid var(--soft);justify-content:space-between;align-items:flex-end;gap:48px;width:min(100% - 48px,1200px);margin-inline:auto;padding:52px 0 44px;display:flex}.footer-primary>div:first-child{align-items:baseline;gap:12px;display:flex}.footer-primary strong{font-size:1.1rem}.footer-primary p{color:var(--muted);margin:10px 0;font-size:.86rem}.footer-links{color:var(--muted);flex-wrap:wrap;gap:10px 22px;font-size:.78rem;display:flex}.footer-links a{color:var(--white);text-underline-offset:4px}.provenance{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:20px;display:flex}.provenance a{color:var(--muted);align-items:center;gap:9px;font-size:.72rem;text-decoration:none;display:inline-flex}.provenance a:hover{color:var(--white)}.provenance img{object-fit:contain;flex:none}.shell{width:min(100% - 48px,1200px);margin-inline:auto}.narrow{max-width:920px}.eyebrow{color:var(--orange);letter-spacing:0;text-transform:uppercase;margin-bottom:14px;font-size:.75rem;font-weight:800}.chapter{min-height:680px;padding-block:104px}.chapter-light{color:var(--black);background:var(--white)}.chapter-dark{color:var(--white);background:var(--black)}.chapter-orange{color:var(--black);background:var(--orange)}.chapter-heading{max-width:790px}.chapter-heading h2,.demo-copy h2,.final-cta h2{margin-bottom:22px;font-size:4.25rem;font-weight:780}.chapter-heading>p:last-child,.demo-copy>p{max-width:700px;color:var(--soft);font-size:1.08rem}.chapter-dark .chapter-heading>p:last-child,.chapter-dark .demo-copy>p{color:var(--muted)}.button{border:1px solid #0000;border-radius:6px;justify-content:center;align-items:center;min-height:48px;padding:0 21px;font-weight:750;text-decoration:none;display:inline-flex}.button.primary{color:var(--black);background:var(--orange)}.button.secondary{border-color:var(--white);color:var(--white);background:var(--black)}.button.black{color:var(--white);background:var(--black)}.button.outline-dark{border-color:var(--black);color:var(--black)}.button:hover{text-underline-offset:4px;text-decoration:underline}.text-link{color:var(--orange);text-underline-offset:4px;font-weight:750}.home-page .site-header{color:var(--white);position:absolute;left:50%;transform:translate(-50%)}.home-page .brand,.home-page .site-header nav a{color:var(--white)}.home-page .site-header nav a:hover,.home-page .site-header nav a[aria-current=page]{color:var(--black);background:var(--orange)}.hero{min-height:100svh;color:var(--white);background-color:var(--black);background-image:url(/assets/hero.webp);background-position:50%;background-size:cover;align-items:center;display:flex;position:relative;overflow:hidden}.hero:before{background:var(--black);content:"";opacity:.48;pointer-events:none;position:absolute;inset:0}.hero-content{z-index:1;width:min(100% - 48px,1200px);margin-inline:auto;position:relative}.hero h1{margin-bottom:2px;font-size:8.5rem;font-weight:820}.hero-category{color:var(--orange);margin-bottom:28px;font-size:1.25rem;font-weight:750}.hero-proposition{max-width:760px;margin-bottom:15px;font-size:3.8rem;font-weight:780;line-height:1.15}.hero-copy{max-width:610px;color:var(--muted);margin-bottom:32px;font-size:1.02rem}.hero-actions{flex-wrap:wrap;gap:12px;display:flex}.section-hint{z-index:1;color:var(--white);align-items:center;gap:10px;padding:10px 12px;font-size:.78rem;text-decoration:none;display:flex;position:absolute;bottom:22px;left:50%;transform:translate(-50%)}.section-hint>[aria-hidden=true]{animation:1.6s ease-in-out infinite section-hint-arrow}@keyframes section-hint-arrow{0%,to{translate:0}50%{translate:0 7px}}.cost-chapter{padding-bottom:0}.cost-chapter .chapter-heading{margin-bottom:62px}.factory-band{background:var(--dark);width:100%;height:min(58vw,670px);display:block;overflow:hidden}.factory-band img{object-fit:cover;object-position:center 55%;width:100%;height:100%}.production-loop{border-top:1px solid var(--soft);border-bottom:1px solid var(--soft);grid-template-columns:repeat(4,1fr);margin:80px 0 0;padding:0;list-style:none;display:grid}.production-loop li{border-right:1px solid var(--soft);min-height:190px;padding:32px 28px;position:relative}.production-loop li:last-child{border-right:0}.production-loop li:not(:last-child):after{z-index:1;width:25px;height:25px;color:var(--black);background:var(--orange);content:"→";text-align:center;border-radius:50%;line-height:25px;position:absolute;top:50%;right:-13px}.production-loop strong{color:var(--orange);margin-bottom:42px;font-size:1.3rem;display:block}.production-loop span{color:var(--muted);line-height:1.55}.strategy-list{border-top:1px solid var(--black);grid-template-columns:repeat(2,1fr);margin-top:70px;display:grid}.strategy-list article{border-bottom:1px solid var(--black);grid-template-columns:minmax(0,1fr) clamp(112px,14vw,160px);align-items:center;gap:24px;padding:30px 30px 34px 0;display:grid}.strategy-list article:nth-child(odd){border-right:1px solid var(--black)}.strategy-list article:nth-child(2n){padding-left:30px}.strategy-list code{color:var(--orange);font-size:.85rem;font-weight:800}.strategy-list h3{margin:28px 0 9px;font-size:1.35rem}.strategy-list p{max-width:460px;color:var(--soft);margin:0}.strategy-figure{width:100%;display:block;overflow:visible}.strategy-curve,.strategy-used,.strategy-guide{fill:none;stroke-linecap:round;stroke-linejoin:round}.strategy-curve{stroke:#8f8f8f;stroke-width:4px}.strategy-used{stroke:var(--orange);stroke-width:5px}.strategy-guide{stroke:var(--orange);stroke-width:2px;stroke-dasharray:4 4}.strategy-point{fill:var(--orange);stroke:var(--black);stroke-width:2px}.capability-list{border-block:1px solid var(--soft);grid-template-columns:repeat(3,1fr);margin:70px 0 36px;display:grid}.capability-list div{border-right:1px solid var(--soft);padding:34px 28px}.capability-list div:last-child{border-right:0}.capability-list dt{color:var(--orange);margin-bottom:20px;font-size:2rem;font-weight:800}.capability-list dd{color:var(--muted);margin:0}.chapter-note{max-width:690px;color:var(--muted)}.audience-paths{border-block:1px solid var(--black);grid-template-columns:1fr 1fr;margin-top:70px;display:grid}.audience-paths article{padding:40px 40px 44px 0}.audience-paths article+article{border-left:1px solid var(--black);padding-left:40px}.path-label{color:var(--orange);font-size:.78rem;font-weight:800}.audience-paths h3{margin-bottom:15px;font-size:1.6rem}.audience-paths article>p:not(.path-label){max-width:470px;color:var(--soft)}.inline-links{flex-wrap:wrap;gap:24px;display:flex}.demo-chapter{min-height:0}.demo-chapter .shell{grid-template-columns:minmax(280px,.65fr) minmax(0,1.35fr);align-items:center;gap:48px;width:min(100% - 48px,1200px);display:grid}.demo-copy{max-width:720px;margin:0}.demo-video{aspect-ratio:16/9;border:1px solid var(--soft);background:var(--dark);border-radius:6px;justify-self:end;width:min(100%,760px)}.final-cta{min-height:0;padding-block:78px}.final-cta .shell{justify-content:space-between;align-items:center;gap:40px;display:flex}.final-cta .eyebrow{color:var(--black)}.final-cta h2{max-width:700px;margin-bottom:0;font-size:3.5rem}.page-intro{padding:88px 0 52px}.page-intro h1{max-width:860px;margin-bottom:22px;font-size:4.6rem;font-weight:800}.page-intro>p:last-child{max-width:720px;color:var(--soft);font-size:1.05rem}.page-intro a{color:var(--black);text-decoration-color:var(--orange);text-underline-offset:3px;text-decoration-thickness:2px}.prose-page main{width:min(100% - 48px,920px);margin-inline:auto;padding-bottom:100px}.prose-page main>h2{border-top:1px solid var(--black);margin:72px 0 24px;padding-top:24px;font-size:2rem}.prose-page main>h3{margin:36px 0 10px;font-size:1.2rem}.prose-page main>p,.prose-page main>ul{max-width:780px;color:var(--soft)}.prose-page main code{color:var(--black);background:var(--muted)}.page-toc{z-index:10;border-block:1px solid var(--black);background:var(--white);flex-wrap:wrap;gap:12px 28px;padding:20px 0;display:flex;position:sticky;top:0}.page-toc ul{flex-wrap:wrap;flex:1;gap:12px 28px;margin:0;padding:0;list-style:none;display:flex}.page-toc a{color:var(--black);text-decoration-color:var(--orange);text-underline-offset:4px;font-weight:700}.page-toc .top-link{margin-left:auto}.page-toc .top-link a{padding:2px;display:inline-flex}.page-toc svg{fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;width:20px;height:20px}.prose-page main>h2,.prose-page main>h3,.prose-page #guide-top{scroll-margin-top:112px}.reading-shell{width:min(100% - 48px,1040px);margin-inline:auto;padding-bottom:110px}.reading-section{border-bottom:1px solid var(--black);padding:84px 0;scroll-margin-top:20px}.reading-section h2{max-width:760px;margin-bottom:22px;font-size:3.2rem}.reading-section>p:not(.section-index):not(.notice):not(.table-note){max-width:800px;color:var(--soft)}.section-index{color:var(--orange);margin-bottom:18px;font-size:.78rem;font-weight:800}.assessment-steps{border-top:1px solid var(--black);margin:42px 0 0;padding:0;list-style:none}.assessment-steps li{border-bottom:1px solid var(--black);grid-template-columns:220px 1fr;gap:30px;padding:24px 0;display:grid}.assessment-steps span{color:var(--soft)}.details-stack{margin-top:38px}.details-stack details{border-top:1px solid var(--black)}.details-stack details:last-child{border-bottom:1px solid var(--black)}.details-stack summary{cursor:pointer;padding:22px 0;font-weight:750}.details-stack details[open] summary{color:var(--orange)}.details-stack details p{max-width:780px;color:var(--soft);padding:0 0 22px 28px}.table-scroll{border:1px solid var(--black);max-width:100%;margin-top:34px;overflow-x:auto}table{border-collapse:collapse;text-align:left;width:100%;min-width:760px}th,td{border-bottom:1px solid var(--muted);vertical-align:top;padding:13px 14px}th{color:var(--white);background:var(--black);white-space:nowrap;font-size:.76rem}td{color:var(--soft);font-size:.85rem}tbody tr:last-child td{border-bottom:0}td code{color:var(--black);font-weight:700}.table-note{max-width:900px;color:var(--soft);margin:18px 0 0;font-size:.88rem}.code-sample{color:var(--muted);background:var(--dark);gap:8px;margin-top:24px;padding:18px;display:grid;overflow-x:auto}.code-sample code{min-width:max-content}.notice{border-left:4px solid var(--orange);max-width:760px;color:var(--black);background:var(--muted);padding:15px 18px;font-weight:700}.deliverables{max-width:760px;color:var(--soft);gap:13px;margin:32px 0 45px;padding-left:22px;display:grid}.example-result{border-block:1px solid var(--black);padding:28px 0}.example-result>strong{color:var(--orange);font-size:.8rem}.example-result .table-scroll{margin-top:16px}.data-protection{border-left:4px solid var(--orange);margin-top:46px;padding-left:24px}.data-protection h3{margin-bottom:10px}.data-protection p{max-width:780px;color:var(--soft);margin:0}.cooperation-cta{padding:80px 0 0}.cooperation-cta h2{margin-bottom:14px;font-size:3.2rem}.cooperation-cta>p:not(.eyebrow){color:var(--soft)}.contact-section{padding-bottom:100px}.contact-list{border-top:1px solid var(--black)}.contact-list article{border-bottom:1px solid var(--black);grid-template-columns:1.05fr 1.45fr 1.2fr .55fr;align-items:center;gap:22px;padding:24px 4px;display:grid}.contact-person{align-items:baseline;gap:12px;display:flex}.contact-socials{align-items:center;gap:12px;display:flex}.contact-socials>a,.wechat-disclosure summary{border:1px solid var(--black);border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;display:inline-flex}.contact-socials img{width:20px;height:20px}.wechat-disclosure{position:relative}.wechat-disclosure summary{cursor:pointer;list-style:none}.wechat-disclosure summary::-webkit-details-marker{display:none}.wechat-popover{z-index:15;border:1px solid var(--black);background:var(--white);visibility:hidden;opacity:0;width:220px;padding:14px;position:absolute;top:calc(100% + 10px);right:0;box-shadow:0 12px 28px #0000002e}.wechat-popover img{width:132px;height:132px;margin-inline:auto}.wechat-popover p{color:var(--soft);margin:10px 0 0;font-size:.8rem}.wechat-disclosure[open] .wechat-popover,.wechat-disclosure:hover .wechat-popover,.wechat-disclosure:focus-within .wechat-popover{visibility:visible;opacity:1}.contact-list strong{font-size:1.12rem}.contact-list span{color:var(--soft);font-size:.82rem}.contact-list a{overflow-wrap:anywhere;color:var(--soft);text-underline-offset:4px}address{border-left:4px solid var(--orange);background:var(--muted);margin-top:38px;padding:24px;font-style:normal;line-height:1.7}address span{color:var(--soft);margin-bottom:6px;font-size:.78rem;font-weight:700;display:block}.map-link{color:var(--black);text-underline-offset:4px;align-items:center;gap:8px;margin-top:12px;font-weight:700;display:inline-flex}.map-link svg{fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;width:20px;height:20px}.map-link span{color:inherit;margin:0;font-size:.84rem;display:inline}.not-found{min-height:calc(100vh - 220px);padding-top:14vh}.not-found h1{margin-bottom:16px;font-size:3rem}.not-found p:not(.eyebrow){color:var(--soft);margin-bottom:28px}@media (width>=801px){.home-page #production-loop,.home-page .strategy-chapter,.home-page .capability-chapter,.home-page .audience-chapter{min-height:100svh}.home-page .strategy-chapter,.home-page .capability-chapter,.home-page .audience-chapter{align-items:center;display:flex}}@media (width<=800px){.site-header{gap:8px;width:min(100% - 24px,1200px);min-height:64px}.site-header nav{gap:0}.site-header nav a{padding:8px 6px;font-size:.75rem}.brand{gap:5px}.brand span{display:none}.shell,.reading-shell{width:min(100% - 32px,1200px)}.chapter{min-height:0;padding-block:70px}.chapter-heading h2,.demo-copy h2{font-size:3rem}.hero{background-position:62%;min-height:100svh}.hero-content{width:min(100% - 32px,1200px)}.hero h1{font-size:4.4rem}.hero-proposition{max-width:350px;font-size:2rem}.hero-copy{max-width:350px}.hero-actions{flex-direction:column;align-items:stretch;max-width:260px}.section-hint{bottom:14px}.cost-chapter{padding-bottom:0}.cost-chapter .chapter-heading{margin-bottom:38px}.factory-band{height:72vw;min-height:330px}.production-loop{grid-template-columns:1fr;margin-top:45px}.production-loop li{border-right:0;border-bottom:1px solid var(--soft);min-height:0;padding:24px 8px}.production-loop li:last-child{border-bottom:0}.production-loop li:not(:last-child):after{top:auto;bottom:-13px;right:8px;transform:rotate(90deg)}.production-loop strong{margin-bottom:14px}.strategy-list,.capability-list,.audience-paths{grid-template-columns:1fr;margin-top:44px}.strategy-list article,.strategy-list article:nth-child(2n){border-right:0;grid-template-columns:minmax(0,1fr) clamp(112px,32vw,160px);gap:16px;padding:26px 0}.capability-list div{border-right:0;border-bottom:1px solid var(--soft);padding:25px 0}.capability-list div:last-child{border-bottom:0}.audience-paths article,.audience-paths article+article{border-left:0;padding:30px 0}.audience-paths article+article{border-top:1px solid var(--black)}.demo-chapter .shell{width:min(100% - 32px,1200px);display:block}.demo-copy{margin-bottom:36px}.demo-video{width:100%}.final-cta .shell{flex-direction:column;align-items:flex-start}.final-cta h2{font-size:2.6rem}.page-intro h1{font-size:3.25rem}.reading-section h2,.cooperation-cta h2{font-size:2.5rem}.footer-shell{flex-direction:column;align-items:flex-start;gap:32px;width:min(100% - 32px,1200px)}.provenance{justify-content:flex-start}.page-intro{padding:60px 0 36px}.prose-page main{width:min(100% - 32px,920px)}.page-toc{scrollbar-width:thin;display:block;overflow-x:auto}.page-toc ul{white-space:nowrap;flex-wrap:nowrap;gap:20px;width:max-content;padding-inline:1px}.page-toc .top-link{margin-left:0}.reading-section{padding:60px 0}.assessment-steps li{grid-template-columns:1fr;gap:8px}.contact-list article{grid-template-columns:1fr;gap:9px}.contact-person{justify-content:space-between}.contact-socials{justify-content:flex-start}.wechat-popover{left:0;right:auto}table{min-width:680px}.not-found h1{font-size:2.2rem}}@media (width<=410px){.site-header{width:calc(100% - 16px)}.site-header nav a{padding-inline:4px;font-size:.7rem}.brand img{width:27px;height:25px}.footer-links{flex-direction:column}.chapter-heading h2,.demo-copy h2,.final-cta h2{font-size:2.35rem}.page-intro h1{font-size:2.65rem}.reading-section h2,.cooperation-cta h2{font-size:2.15rem}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.section-hint>[aria-hidden=true]{animation:none}}