:root{--fg-font-sans:var(--font-primary);--fg-weight-display:850;--fg-gutter:60px;--fg-shell-max:1440px;--fg-radius:0;--fg-anchor-offset:88px}.pg-start{background:var(--fg-color-bg);color:var(--fg-color-text);font:400 16px/1.7 var(--fg-font-sans);-webkit-font-smoothing:antialiased;margin:0}::selection{background:var(--fg-color-link);color:var(--fg-color-bg)}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer;border-radius:var(--fg-radius)}button,a{touch-action:manipulation}svg,img{max-width:100%;display:block}svg{flex-shrink:0}h1,h2,h3,p,figure,blockquote{margin:0}h1,h2,h3{line-height:1.15}p{color:var(--fg-color-text-muted)}strong{color:var(--fg-color-text);font-weight:600}ul{margin:0;padding:0;list-style:none}:where(a,button,[tabindex]:not([tabindex="-1"])):focus-visible{outline:2px solid var(--fg-color-focus);outline-offset:5px}:root{--fg-anchor-offset:28px}.icon{flex-shrink:0;width:18px;height:18px}.no-js .enhanced{display:none!important}h1,h2,h3{font-weight:550}.page-intro{grid-template-columns:1.1fr 1fr;align-items:start;gap:100px;padding-block:96px 52px;display:grid}.hero-copy{padding-top:0}h1{letter-spacing:-.065em;text-transform:uppercase;max-width:11ch;font-size:clamp(58px,6.25vw,90px);font-weight:850;line-height:1.01}.identity{max-width:560px;margin-top:32px;font-size:17px;line-height:1.95}.stories-jump{min-height:44px;color:var(--fg-color-link);align-items:center;gap:14px;margin-top:20px;font-size:12px;display:inline-flex}.stories-jump:hover{color:var(--fg-color-text)}.conversation{background:var(--fg-color-stage);border:1px solid var(--fg-color-border);padding:34px 36px}.section-label{margin-bottom:16px;font-size:12px}.conversation h2{letter-spacing:-.035em;max-width:400px;font-size:29px;line-height:1.3}.steps{margin:24px 0 28px;padding:0;list-style:none}.steps li{border-top:1px solid var(--fg-color-border);grid-template-columns:24px minmax(0,1fr);gap:20px;padding-block:18px;display:grid}.steps li:last-child{border-bottom:1px solid var(--fg-color-border)}.step-number{color:var(--fg-color-text-muted);padding-top:4px;font-size:11px}.steps p{font-size:14px;line-height:1.85}.steps strong{font-weight:500}.primary-action .button{justify-content:space-between;width:100%;display:flex}.button{background:var(--fg-color-text);min-height:52px;color:var(--fg-color-bg);align-items:center;gap:16px;padding:14px 23px;font-size:14px;font-weight:550;line-height:1.5;display:inline-flex}.button[href]:hover{background:var(--fg-color-link)}.no-js .primary-action .button,.no-js .closing .button{color:var(--fg-color-text);background:0 0;min-height:0;padding:0}.mail-hint{margin-top:12px;font-size:11px;line-height:1.8}.constraint{border-block:1px solid var(--fg-color-border);grid-template-columns:220px minmax(0,1fr);align-items:center;gap:56px;padding-block:24px;display:grid}.constraint-art svg{width:100%;height:auto}.constraint p{letter-spacing:-.02em;max-width:880px;font-size:20px;line-height:1.8}.constraint p>span{letter-spacing:0;margin-bottom:8px;font-size:12px;line-height:1.6;display:block}.constraint strong{font-weight:500}.familiar{scroll-margin-top:var(--fg-anchor-offset);padding-block:54px 0}.familiar-intro{grid-template-columns:1.1fr 1fr;align-items:end;gap:100px;margin-bottom:34px;display:grid}.familiar h2{letter-spacing:-.04em;max-width:570px;font-size:38px;line-height:1.2}.familiar-lede{max-width:470px;font-size:16px;line-height:1.9}.scenario-list{grid-template-columns:1fr 1fr;gap:0 64px;display:grid}.scenario-list li{border-top:1px solid var(--fg-color-border);min-width:0;display:flex}.scenario-list li:nth-last-child(-n+2){border-bottom:1px solid var(--fg-color-border)}.scenario-list a{flex-direction:column;gap:16px;width:100%;min-height:170px;padding:28px 0 32px;display:flex}.story-function{color:var(--fg-color-text-muted);justify-content:space-between;align-items:center;gap:20px;font-size:12px;display:flex}.story-function>span{color:var(--fg-color-link);font-size:18px}.story-scenario{letter-spacing:-.02em;max-width:540px;font-size:21px;line-height:1.6}.scenario-list a:hover .story-scenario{color:var(--fg-color-link)}.scenario-list a:hover .story-function{color:var(--fg-color-text)}.closing{justify-content:space-between;align-items:center;gap:30px;padding-block:38px 54px;display:flex}.closing>div{align-items:center;gap:24px;display:flex}.closing p{font-size:11px}.back-top{min-height:44px;color:var(--fg-color-text-muted);align-items:center;font-size:12px;display:inline-flex}.back-top:hover{color:var(--fg-color-text)}@media (width<=1190px){:root{--fg-gutter:36px}.page-intro{gap:60px;padding-block:88px 48px}.identity{margin-top:28px;font-size:16px}.conversation{padding:28px}.conversation h2{font-size:26px}.steps li{gap:16px;padding-block:16px}.steps p,.button{font-size:13px}.constraint{grid-template-columns:180px minmax(0,1fr);gap:44px}.constraint p{font-size:19px}.familiar-intro{gap:60px}.familiar h2{font-size:34px}.familiar-lede{font-size:15px}.scenario-list{gap:0 50px}.story-scenario{font-size:20px}.scenario-list a{min-height:174px}}@media (width<=900px){:root{--fg-gutter:25px}.page-intro{gap:36px;padding-block:76px 38px}.identity{font-size:15px;line-height:1.9}.conversation{padding:24px}.conversation h2{font-size:24px}.steps li{grid-template-columns:20px minmax(0,1fr);gap:12px}.steps p{font-size:13px}.section-label{font-size:11px}.step-number{font-size:10px}.button{padding:13px 18px}.mail-hint{font-size:10px}.constraint{grid-template-columns:150px minmax(0,1fr);gap:32px}.constraint p{font-size:18px}.familiar{padding-top:42px}.familiar-intro{gap:36px}.familiar h2{font-size:31px}.familiar-lede{font-size:14px}.scenario-list{gap:0 36px}.scenario-list a{min-height:185px;padding-block:24px}.story-scenario{font-size:18px;line-height:1.6}.story-function{font-size:11px}}@media (width<=680px){.page-intro{grid-template-columns:1fr;gap:28px}h1{max-width:12ch;font-size:clamp(52px,11vw,74px)}.identity{max-width:620px;font-size:17px}.stories-jump{margin-top:14px}.conversation{padding:30px}.conversation h2{max-width:none;font-size:29px}.steps p{font-size:16px}.steps li{grid-template-columns:24px minmax(0,1fr);gap:20px;padding-block:20px}.step-number,.section-label{font-size:12px}.button{font-size:14px}.mail-hint{font-size:12px}.constraint{grid-template-columns:130px minmax(0,1fr);gap:28px}.constraint p{font-size:18px}.constraint p>span{font-size:11px}.familiar-intro{grid-template-columns:1fr;gap:20px}.familiar h2{font-size:34px}.familiar-lede{max-width:none;font-size:16px}.scenario-list{grid-template-columns:1fr}.scenario-list li:nth-last-child(2){border-bottom:0}.scenario-list a{gap:14px;min-height:0;padding-block:24px 28px}.story-function{font-size:12px}.story-scenario{max-width:none;font-size:21px}.closing{align-items:start}.closing>div{flex-direction:column;align-items:start;gap:14px}.closing p{font-size:11px}}@media (width<=580px){:root{--fg-gutter:20px;--fg-anchor-offset:24px}.page-intro{gap:24px;padding-block:72px 32px}h1{max-width:11ch;font-size:clamp(48px,12vw,66px)}.identity{margin-top:24px;font-size:16px;line-height:1.9}.stories-jump{font-size:12px}.conversation{padding:24px}.conversation h2{font-size:27px}.steps{margin-block:24px}.steps li{grid-template-columns:22px minmax(0,1fr);gap:16px;padding-block:18px}.steps p{font-size:15px;line-height:1.85}.step-number{font-size:11px}.button{font-size:13px}.mail-hint{font-size:11px}.constraint{grid-template-columns:1fr;gap:16px;padding-block:24px 28px}.constraint-art{width:145px}.constraint p{font-size:19px;line-height:1.75}.constraint p>span{margin-bottom:10px;font-size:12px}.familiar{padding-top:36px}.familiar-intro{gap:18px;margin-bottom:28px}.familiar h2{font-size:30px}.familiar-lede{font-size:15px}.story-scenario{font-size:20px;line-height:1.65}.closing{gap:20px;padding-block:30px 38px}.back-top{font-size:11px}}@media (width<=360px){:root{--fg-gutter:18px}h1{font-size:46px}.conversation{padding:20px}.conversation h2{font-size:25px}.steps li{grid-template-columns:20px 1fr;gap:12px}.steps p{font-size:14px}.familiar h2{font-size:28px}.story-scenario{font-size:19px}.closing .button{padding-inline:14px;font-size:12px}}@media (prefers-reduced-motion:reduce){:before,:after{transition:none!important;animation:none!important}}@media print{.stories-jump,.constraint-art,.mail-hint,.closing{display:none!important}.page-intro{padding:0 0 20px;display:block}h1{max-width:none;font-size:32px}.identity{max-width:none;margin-top:14px;font-size:11px}.conversation{break-inside:avoid;margin-top:22px;padding:20px}.conversation h2{max-width:none;font-size:22px}.steps{margin-block:16px}.steps li{padding-block:12px}.steps p{font-size:11px}.step-number{font-size:9px}.button{color:#111;background:0 0;min-height:0;padding:0;font-size:12px}.primary-action .button{display:inline}.constraint{padding-block:18px;display:block}.constraint p{max-width:none;font-size:15px}.constraint p>span{font-size:10px}.familiar{padding-top:24px}.familiar-intro{margin-bottom:20px;display:block}.familiar h2{max-width:none;font-size:23px}.familiar-lede{max-width:none;margin-top:14px;font-size:11px}.section-label{font-size:9px}.scenario-list{grid-template-columns:1fr 1fr;gap:0 30px;display:grid}.scenario-list a{break-inside:avoid;gap:8px;min-height:0;padding-block:14px}.story-function{font-size:9px}.story-scenario{font-size:12px}.scenario-list li{break-inside:avoid}.scenario-list li:nth-last-child(-n+2){border-bottom:1px solid var(--fg-color-border)}.pg-start{print-color-adjust:exact}}.primary-action{margin-top:24px}.steps{margin-bottom:0}@media print{.primary-action{margin-top:16px}.steps{margin-bottom:0}}:root:lang(zh-Hant){--fg-font-sans:var(--font-primary)}:root:lang(zh-Hant) h1,:root:lang(zh-Hant) h2,:root:lang(zh-Hant) h3{letter-spacing:0;text-transform:none;font-weight:700}:root:lang(zh-Hant) h1{text-wrap:balance;max-width:8em;font-size:clamp(48px,5.1vw,72px);line-height:1.3}:root:lang(zh-Hant) .identity{max-width:30em;font-size:17px;line-height:1.95}:root:lang(zh-Hant) .conversation h2{letter-spacing:0;text-wrap:pretty;font-size:28px;line-height:1.55}:root:lang(zh-Hant) .steps p{font-size:16px;line-height:1.95}:root:lang(zh-Hant) .steps strong{font-weight:700}:root:lang(zh-Hant) .section-label,:root:lang(zh-Hant) .stories-jump,:root:lang(zh-Hant) .story-function,:root:lang(zh-Hant) .constraint p>span{font-size:13px}:root:lang(zh-Hant) .button{font-size:15px;font-weight:700}:root:lang(zh-Hant) .mail-hint,:root:lang(zh-Hant) .closing p{font-size:12px}:root:lang(zh-Hant) .constraint p{letter-spacing:0;line-height:1.9}:root:lang(zh-Hant) .constraint strong{font-weight:400}:root:lang(zh-Hant) .familiar h2{letter-spacing:0;text-wrap:pretty;font-size:34px;line-height:1.55}:root:lang(zh-Hant) .familiar-lede{font-size:17px;line-height:1.95}:root:lang(zh-Hant) .story-scenario{letter-spacing:0;font-size:22px;line-height:1.8}:root:lang(zh-Hant) .back-top{font-size:13px}@media (width<=1190px){:root:lang(zh-Hant) .page-intro,:root:lang(zh-Hant) .familiar-intro{gap:48px}:root:lang(zh-Hant) .conversation{padding:26px}:root:lang(zh-Hant) .conversation h2{font-size:25px}:root:lang(zh-Hant) h1{font-size:clamp(44px,5.1vw,66px)}:root:lang(zh-Hant) .familiar h2{font-size:30px}:root:lang(zh-Hant) .story-scenario{font-size:20px}}@media (width<=900px){:root:lang(zh-Hant) .page-intro{grid-template-columns:1fr;gap:32px}:root:lang(zh-Hant) .hero-copy{max-width:650px}:root:lang(zh-Hant) h1{max-width:9em;font-size:60px}:root:lang(zh-Hant) .identity{max-width:36em}:root:lang(zh-Hant) .conversation h2{max-width:none}:root:lang(zh-Hant) .familiar-intro{gap:28px}:root:lang(zh-Hant) .familiar h2{font-size:28px}}@media (width<=580px){:root:lang(zh-Hant) h1{max-width:8em;font-size:46px}:root:lang(zh-Hant) .identity{margin-top:24px}:root:lang(zh-Hant) .conversation{padding:24px}:root:lang(zh-Hant) .conversation h2{font-size:25px}:root:lang(zh-Hant) .steps li{grid-template-columns:20px minmax(0,1fr);gap:14px}:root:lang(zh-Hant) .button{padding-inline:18px}:root:lang(zh-Hant) .familiar h2{font-size:29px}:root:lang(zh-Hant) .constraint p{font-size:19px}:root:lang(zh-Hant) .scenario-list a{gap:12px}:root:lang(zh-Hant) .story-scenario{font-size:21px}}@media (width<=360px){:root:lang(zh-Hant) h1{font-size:40px}:root:lang(zh-Hant) .conversation{padding:20px}:root:lang(zh-Hant) .conversation h2{font-size:23px}:root:lang(zh-Hant) .steps p{font-size:16px}:root:lang(zh-Hant) .steps li{gap:10px}:root:lang(zh-Hant) .primary-action .button{padding-inline:12px;font-size:14px}:root:lang(zh-Hant) .familiar h2{font-size:26px}:root:lang(zh-Hant) .story-scenario{font-size:20px}:root:lang(zh-Hant) .closing .button{font-size:14px}}@media print{:root:lang(zh-Hant) h1{max-width:none;font-size:30px}:root:lang(zh-Hant) .identity,:root:lang(zh-Hant) .steps p,:root:lang(zh-Hant) .familiar-lede{font-size:11px}:root:lang(zh-Hant) .conversation h2{font-size:20px}:root:lang(zh-Hant) .familiar h2{font-size:22px}:root:lang(zh-Hant) .story-scenario{font-size:12px}:root:lang(zh-Hant) .constraint p{font-size:14px}:root:lang(zh-Hant) .section-label,:root:lang(zh-Hant) .story-function{font-size:10px}}