:root{--v-ink:#162939;--v-ink2:#365266;--v-ivory:#fbfaf8;--v-cloud:#f3f5f5;--v-line:#e1e8e9;--v-gold:#a68458;--v-dark:#132d3c}
*{box-sizing:border-box}html{scroll-behavior:smooth}body.expansion-ai-theme{background:var(--v-ivory);color:var(--v-ink);margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}.skip{position:absolute;top:-80px;left:12px;z-index:999;background:#fff;padding:12px;border:1px solid #ddd}.skip:focus{top:10px}.sr-only{position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}
.site-top{position:relative;z-index:2;min-height:82px;border-bottom:1px solid #e7e8e6;background:rgba(251,250,248,.94)}.top-inner{max-width:1400px;min-height:82px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:0 48px;gap:32px}.site-brand{display:flex;align-items:center;gap:13px}.site-brand:focus-visible,.site-nav a:focus-visible{outline:2px solid #7b9ca7;outline-offset:5px}.site-emblem{width:45px;height:45px;border-radius:15px;background:#1a3546;display:grid;place-items:center;box-shadow:0 4px 13px #2d4d6240;flex:none}.site-emblem span{font-family:Georgia,serif;font-size:26px;line-height:1;color:#fff;transform:translateY(-1px)}.site-wordmark{display:flex;flex-direction:column;gap:1px;font-size:14px;letter-spacing:.17em}.site-wordmark strong{font-weight:720}.site-wordmark>span{font-size:9px;letter-spacing:.23em;color:var(--v-gold);font-weight:700}.site-nav{display:flex;align-items:center;gap:28px;color:#556975;font-size:12px;font-weight:600}.nav-private{font-size:10px;letter-spacing:.1em;color:#7b8a91}.nav-small-dot,.hero-note-dot{background:#6f9a88;width:6px;height:6px;border-radius:50%;display:inline-block;margin-right:6px;vertical-align:middle}.site-parent-link{white-space:nowrap}.site-parent-link span{font-size:15px;color:#8398a4;margin-left:2px}.site-account{padding:10px 16px;background:#1e394a;color:#fff;border-radius:9px;white-space:nowrap}
.hero{position:relative;isolation:isolate;max-width:1140px;margin:0 auto;text-align:center;padding:66px 30px 8px;overflow:hidden}.hero-halo{position:absolute;z-index:-1;width:730px;height:430px;left:calc(50% - 365px);top:-310px;border-radius:50%;background:radial-gradient(ellipse at 50% 80%,#dfe9e5 0%,#edf2ee 38%,transparent 72%);pointer-events:none}.hero-topline{display:flex;gap:13px;align-items:center;justify-content:center;font-size:10px;font-weight:750;letter-spacing:.18em;color:#6a817d}.hero-line{width:21px;height:1px;background:#b5c4be}.hero h1{font-size:clamp(34px,4.2vw,58px);line-height:1.13;font-weight:570;letter-spacing:-.05em;max-width:870px;margin:22px auto 15px}.hero h1 em{font-family:Georgia,serif;font-style:italic;font-weight:400;color:#547b83;letter-spacing:-.065em}.hero-subtitle{font-size:15px;line-height:1.75;color:#6f7d84;max-width:650px;margin:0 auto}.hero-subtitle strong{font-weight:620;color:#4b606a}.hero-note{margin:20px 0 6px;color:#879394;font-size:11px;letter-spacing:.025em}.hero-note>span:not(.hero-note-dot){margin:0 8px}
.chat-layout{padding:0 35px}.chat-layout .expai-app{margin:26px auto 35px}.chat-layout .expai-panel{box-shadow:0 19px 70px rgba(20,38,50,.07),0 2px 9px rgba(20,38,50,.025)}.principles{max-width:1180px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px;margin:44px auto 92px;padding:0 20px}.principles>div{padding:18px 20px 16px;border-left:1px solid #dce4e2}.principle-num{color:var(--v-gold);font-size:11px;font-weight:750;letter-spacing:.1em}.principles h3{font-size:16px;font-weight:620;margin:11px 0 8px}.principles p{font-size:12px;line-height:1.8;color:#75818a;max-width:320px;margin:0}.site-bottom{border-top:1px solid #e5e9e8;padding:28px 20px;background:#f7f8f6}.bottom-inner{max-width:1300px;margin:auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;color:#829096;font-size:10px;letter-spacing:.04em}.bottom-inner>span:first-child{font-weight:740;letter-spacing:.09em;color:#3b5969}.bottom-copyright{font-weight:400;letter-spacing:0;margin-left:6px}.bottom-inner>a{color:#45697d;font-weight:600}
.theme-notice{border:1px solid #d9e3e2;border-radius:21px;background:#fff;padding:70px;text-align:center;max-width:1180px;margin:32px auto}.theme-notice h2{font-size:24px;font-weight:600}.theme-notice p{font-size:14px;max-width:540px;margin:0 auto;line-height:1.8;color:#69818b}.standard-main{min-height:65vh}.simple-page{max-width:920px;margin:90px auto;padding:0 30px 70px}.simple-eyebrow{font-size:11px;letter-spacing:.2em;font-weight:700;color:#7a9a91}.simple-page h1{font-size:clamp(31px,4vw,52px);line-height:1.2;font-weight:550;letter-spacing:-.045em;margin:18px 0 26px}.single-entry{padding:20px 0;border-top:1px solid #e0e5e3}.single-entry h2{font-size:20px;font-weight:620}.article-content{line-height:1.9;font-size:15px}.article-content p{margin-bottom:1.4em}.back-link{display:inline-block;background:#1a3546;color:#fff;padding:12px 16px;border-radius:10px;font-size:13px}
@media(max-width:800px){.top-inner{padding:0 18px;min-height:72px}.site-top{min-height:72px}.site-nav{gap:14px}.nav-private{display:none}.site-parent-link{font-size:11px}.hero{padding:47px 22px 10px}.hero h1{font-size:clamp(32px,6vw,49px)}.hero-subtitle{font-size:13px}.chat-layout{padding:0 12px}.principles{gap:12px;padding:0 14px;margin:28px auto 55px}.principles>div{padding:10px 10px 10px 16px}}
@media(max-width:600px){.site-wordmark{font-size:11px}.site-wordmark>span{font-size:8px}.site-emblem{width:38px;height:38px;border-radius:11px}.site-nav{gap:8px}.site-parent-link{display:none}.site-account{padding:9px 12px;font-size:11px}.hero{padding-top:39px}.hero-topline{font-size:8px;gap:7px}.hero-line{width:12px}.hero h1{font-size:34px;margin:15px auto 10px}.hero-note{line-height:1.7;margin-top:16px}.principles{grid-template-columns:1fr;gap:15px}.principles>div{padding:6px 17px}.bottom-inner{flex-direction:column;text-align:center}.simple-page{margin:48px auto;padding:0 20px 60px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}