:root{--ink:#142033;--deep:#0d1726;--deep2:#13243a;--line:#d9e1e3;--muted:#56677a;--paper:#f7f8f5;--white:#fff;--mint:#8aead3;--peach:#f0bd98;--sans:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI','Noto Sans Thai','Noto Sans JP','Noto Sans CJK SC','Microsoft YaHei','PingFang SC',sans-serif;--mono:Consolas,'Courier New',monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font:400 16px/1.8 var(--sans)}a{color:inherit;text-decoration:none}button,input{font:inherit}svg{max-width:100%}::selection{background:var(--mint);color:var(--deep)}.shell{width:min(1200px,calc(100% - 64px));margin:auto}.narrow{width:min(980px,calc(100% - 64px));margin:auto}.skip-link{position:absolute;top:-100px;left:20px;background:#fff;color:#000;padding:8px 15px;z-index:20}.skip-link:focus{top:10px}.site-header{background:var(--deep);border-bottom:1px solid #354254;color:#eff6f8}.header-inner{min-height:76px;display:flex;align-items:center;gap:42px}.brand{display:inline-flex;align-items:center;gap:12px;font:600 18px/1.2 var(--sans);white-space:nowrap;letter-spacing:-.02em}.brand b{font-size:13px;font-weight:500;color:var(--mint);letter-spacing:0}.brand-mark{width:28px;height:28px;display:inline-block;position:relative;transform:rotate(45deg)}.brand-mark i{position:absolute;width:10px;height:10px;border:2px solid var(--mint);display:block}.brand-mark i:nth-child(1){left:0;top:9px}.brand-mark i:nth-child(2){left:9px;top:0;border-color:#e9ad87}.brand-mark i:nth-child(3){left:9px;top:9px}.main-nav{display:flex;gap:32px;margin-left:auto;height:76px;align-items:center}.main-nav a{font-size:13px;color:#afbdc9;height:100%;display:flex;align-items:center;border-bottom:2px solid transparent}.main-nav a:hover,.main-nav a[aria-current]{color:#fff;border-bottom-color:var(--mint)}.header-official{font-size:12px;border:1px solid #617184;padding:9px 14px;border-radius:4px;color:#dbe6ea;white-space:nowrap}.header-official:hover{background:#26384b}.hero,.page-hero{color:#fff;background:radial-gradient(circle at 78% 12%,#1f4953 0,transparent 34%),linear-gradient(135deg,var(--deep),#172940 70%,#203146);overflow:hidden}.hero-grid{min-height:635px;display:grid;grid-template-columns:1fr 1.05fr;align-items:center;gap:50px;padding:70px 0 80px}.eyebrow{display:flex;align-items:center;gap:12px;margin:0 0 25px;font:500 11px/1.5 var(--mono);letter-spacing:.15em;text-transform:uppercase;color:var(--mint)}.eyebrow.dark{color:#437f78}.eyebrow-line{display:inline-block;width:23px;height:1px;background:var(--mint)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(40px,4.5vw,67px);font-weight:600;line-height:1.28;letter-spacing:-.055em;margin-bottom:27px}h1 em{font-style:normal;color:var(--mint)}.hero-lede{font-size:16px;line-height:2;max-width:550px;color:#c1cdd6;margin-bottom:34px}.hero-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.button{border-radius:5px;padding:13px 23px;font-size:13px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:18px;min-height:48px;transition:transform .2s,background .2s}.button:hover{transform:translateY(-2px)}.button-primary{color:#102131;background:var(--mint)}.button-primary:hover{background:#a8f5e4}.button-ghost{border:1px solid #67808a;color:#f2f6f6}.button-ghost:hover{background:#274654}.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:56px;font:400 11px var(--mono);color:#91aab2}.hero-meta span+span:before{content:'•';margin-right:22px;color:#79ddd2}.hero-art{background:#15283a;border:1px solid #416172;border-radius:7px;box-shadow:0 20px 70px #050d1680;overflow:hidden;align-self:center}.art-top,.art-bottom{display:flex;justify-content:space-between;gap:12px;padding:14px 20px;color:#a6c3c7;font:400 10px var(--mono);letter-spacing:.08em}.art-top{border-bottom:1px solid #345366}.art-top span:first-child:before{content:'●';color:#f0bd98;margin-right:10px}.art-bottom{border-top:1px solid #345366;color:#bdcfd2}.hero-art svg{display:block;width:100%;height:auto}.section{padding:100px 0}.intro-section{background:#f7f8f5}.section-heading{max-width:740px;margin-bottom:42px}.section-heading h2,.source-layout h2,.path-layout h2{font-size:clamp(30px,3.3vw,46px);line-height:1.35;letter-spacing:-.05em;margin-bottom:20px;font-weight:600}.section-heading>p:last-child{color:var(--muted);max-width:660px;margin-bottom:0;line-height:1.95}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.feature-card{min-height:290px;padding:31px;background:#fff;border:1px solid var(--line);display:flex;flex-direction:column}.feature-number{font:500 12px var(--mono);color:#3e8881;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:24px}.feature-card h3{font-size:19px;font-weight:600;margin-bottom:14px}.feature-card p{font-size:14px;color:var(--muted);line-height:1.95}.feature-card>a{margin-top:auto;padding-top:18px;color:#1b625e;font-weight:600;font-size:13px}.feature-card>a:hover,.text-link:hover,.source-links a:hover{color:#b76c4c}.path-section{background:#122539;color:#fff}.path-layout{display:grid;grid-template-columns:.85fr 1fr;gap:100px}.path-layout h2{margin-bottom:22px}.path-layout>div>p:not(.eyebrow){color:#b2c8d0;max-width:430px}.text-link{display:inline-block;color:#17665f;font-weight:600;font-size:13px;border-bottom:1px solid currentColor;padding-bottom:5px}.light-link{color:var(--mint);margin-top:22px}.path-list{list-style:none;padding:0;margin:0}.path-list li{display:flex;gap:24px;border-top:1px solid #3c5664;padding:23px 0}.path-list li:last-child{border-bottom:1px solid #3c5664}.path-list li>span{font:500 15px var(--mono);color:var(--mint);padding-top:4px}.path-list h3{font-size:17px;margin-bottom:5px}.path-list p{font-size:13px;color:#b4c7ce;margin:0}.source-section{background:#ecf1ee}.source-layout{display:grid;grid-template-columns:1fr 1fr;gap:90px}.source-layout p{color:var(--muted);line-height:2}.source-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}.source-links a{font-size:12px;border:1px solid #b6ccc8;padding:8px 13px;color:#25665f}.site-footer{background:#0c1623;color:#eff7f6;padding:64px 0 22px}.footer-grid{display:grid;grid-template-columns:2.1fr 1fr 1fr;gap:70px;padding-bottom:60px}.footer-grid p{max-width:440px;color:#a7b7c2;font-size:12px;margin:20px 0 0}.footer-grid .footer-disclaimer{color:#8496a4;line-height:1.9}.footer-grid h2{font-size:13px;letter-spacing:.08em;margin:2px 0 25px}.footer-grid>div:not(:first-child) a{display:block;font-size:12px;color:#a7b7c2;margin-bottom:13px}.footer-grid a:hover{color:var(--mint)}.footer-bottom{border-top:1px solid #293c4b;padding-top:20px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:11px;color:#8197a4}.page-hero{padding:87px 0 85px}.page-hero h1{max-width:850px;margin-bottom:22px}.page-lede{color:#c2d3db;max-width:780px;font-size:16px;line-height:2}.notice{margin-top:35px;border-left:3px solid var(--mint);background:#ffffff0d;padding:18px 20px;display:flex;gap:20px;align-items:flex-start;color:#ccdde0;font-size:13px;line-height:1.8}.notice strong{color:var(--mint);white-space:nowrap}.content-section{padding-top:74px}.section-heading.left{margin-bottom:30px}.download-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.download-card{background:#fff;border:1px solid var(--line);padding:28px 30px 25px;min-height:292px;display:flex;flex-direction:column;position:relative}.download-card.accent-card{background:#e8f5f0;border-color:#a4d7ca}.download-icon{font-size:32px;line-height:1;color:#367c75;height:47px}.download-card h3{font-size:21px;margin-bottom:11px}.download-card p{font-size:13px;color:var(--muted);line-height:1.9;margin-bottom:12px}.download-card .fine-print{font-size:11px;color:#6b7782}.card-link{display:block;margin-top:auto;padding-top:16px;font-size:13px;font-weight:700;color:#146960;border-top:1px solid var(--line)}.card-link:hover{color:#9e5e44}.inline-panel{margin-top:33px;padding:30px;border:1px solid #b7cdc9;background:#eef5f1;display:grid;grid-template-columns:.85fr 1.5fr auto;gap:22px;align-items:center}.inline-panel .eyebrow{margin-bottom:8px}.inline-panel h3{font-size:17px;margin:0}.inline-panel p:not(.eyebrow){font-size:12px;color:var(--muted);line-height:1.9;margin:0}.inline-panel a{white-space:nowrap}.sources-box{border-top:1px solid #ccd8d6;margin-top:75px;padding-top:30px}.sources-box h2{font-size:17px}.sources-box ul{padding-left:20px;display:grid;grid-template-columns:1fr 1fr;gap:10px 25px}.sources-box li{font-size:12px;color:#24665f}.sources-box li a:hover{text-decoration:underline}.sources-box p{color:#77858a;font-size:11px;margin-top:22px}.hero-actions.compact{margin-top:33px}.prep-strip{background:#e8f2ed;border-left:3px solid #3da891;padding:22px 25px;display:flex;align-items:flex-start;gap:20px;margin-bottom:35px}.prep-strip span{font-size:12px;color:#286c5f;font-weight:700;white-space:nowrap}.prep-strip p{font-size:13px;color:#3d5960;margin:0}.steps{border-top:1px solid #cbd8d5}.step{display:grid;grid-template-columns:80px 1fr;gap:25px;padding:30px 12px 32px 0;border-bottom:1px solid #cbd8d5}.step-index{font:500 20px var(--mono);color:#318e7c}.step h2{font-size:21px;margin-bottom:11px}.step p{font-size:14px;color:#526372;max-width:760px;line-height:2;margin:0}.step strong{color:#1f4d50}.step code,.step kbd{font:500 12px var(--mono);background:#e0eae7;padding:3px 7px;border-radius:3px;color:#225a54}.result-panel{margin-top:44px;background:#142a3b;color:#fff;padding:34px 38px;display:grid;grid-template-columns:1fr 1.4fr;gap:30px;align-items:center}.result-panel .eyebrow{margin-bottom:9px}.result-panel h2{font-size:24px;margin:0}.result-panel p:not(.eyebrow){font-size:13px;color:#c0d0d5;margin:0;line-height:1.9}a:focus-visible{outline:3px solid #f2bd91;outline-offset:3px}
@media(max-width:1050px){.hero-grid{grid-template-columns:1fr 1fr;gap:25px}.hero-meta{margin-top:34px}.path-layout{gap:50px}.inline-panel{grid-template-columns:1fr 1.6fr}.inline-panel a{grid-column:2}}
@media(max-width:760px){.shell,.narrow{width:min(100% - 36px,600px)}.header-inner{min-height:68px;flex-wrap:wrap;gap:0;padding-top:15px}.brand{font-size:16px}.brand b{font-size:11px}.main-nav{order:3;flex-basis:100%;height:48px;margin:5px 0 0;gap:28px}.main-nav a{font-size:12px}.header-official{margin-left:auto;font-size:11px;padding:6px 8px}.hero-grid{grid-template-columns:1fr;gap:42px;padding:65px 0 60px}.hero h1,.page-hero h1{font-size:clamp(37px,9vw,52px)}.hero-lede,.page-lede{font-size:14px}.hero-art{max-width:590px}.hero-meta{margin-top:36px}.section{padding:66px 0}.feature-grid,.download-grid,.path-layout,.source-layout,.footer-grid,.result-panel{grid-template-columns:1fr}.feature-card{min-height:0}.path-layout,.source-layout,.footer-grid{gap:35px}.source-links{margin-top:15px}.site-footer{padding-top:50px}.footer-grid{padding-bottom:32px}.page-hero{padding:65px 0}.notice{display:block}.notice strong{display:block;margin-bottom:5px}.content-section{padding-top:60px}.download-card{min-height:260px}.inline-panel{display:block}.inline-panel p:not(.eyebrow){margin:15px 0}.inline-panel a{margin-top:5px}.sources-box{margin-top:55px}.sources-box ul{grid-template-columns:1fr}.result-panel{gap:18px}}
@media(max-width:420px){.main-nav{justify-content:space-between;gap:5px}.header-official{display:none}.brand{font-size:15px}.hero-actions .button{width:100%}.art-top,.art-bottom{font-size:8px;padding:10px}.step{grid-template-columns:45px 1fr;gap:8px}.step h2{font-size:18px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}
.language-switcher{position:relative;flex:none;font-size:12px}
.language-switcher summary{list-style:none;cursor:pointer;border:1px solid #617184;border-radius:4px;padding:8px 10px;color:#dbe6ea;white-space:nowrap}
.language-switcher summary::-webkit-details-marker{display:none}
.language-switcher summary:after{content:"⌄";margin-left:7px;color:var(--mint)}
.language-menu{position:absolute;z-index:30;right:0;top:calc(100% + 8px);min-width:130px;padding:6px;background:#fff;color:#182b3d;border:1px solid #cbd8d5;border-radius:4px;box-shadow:0 12px 30px #06111d40}
.language-menu a{display:block;padding:8px 10px;border-radius:3px;font-size:12px}
.language-menu a:hover,.language-menu a[aria-current="page"]{background:#e8f5f0;color:#17665f}
.language-switcher summary:focus-visible,.language-menu a:focus-visible{outline:3px solid #f2bd91;outline-offset:2px}
@media(max-width:760px){.language-switcher{margin-left:auto;margin-top:-1px}.header-official{margin-left:auto}.main-nav{margin-top:5px}}
@media(max-width:420px){.language-switcher{margin-left:auto}.header-official{display:none}.main-nav{justify-content:space-between;gap:5px}}

/* Readability refinements: make supporting copy and metadata easier to scan. */
body{font-size:17px;line-height:1.85}
.main-nav a{font-size:14px}
.header-official{font-size:13px}
.eyebrow{font-size:12px}
.hero-lede,.page-lede{font-size:17px}
.hero-meta{font-size:13px}
.button{font-size:14px}
.art-top,.art-bottom{font-size:12px}
.feature-number{font-size:13px}
.feature-card p{font-size:15px}
.feature-card>a,.text-link{font-size:14px}
.path-list p{font-size:14px}
.source-links a{font-size:13px}
.footer-grid p{font-size:14px}
.footer-grid>div:not(:first-child) a{font-size:14px}
.footer-grid h2{font-size:14px}
.footer-bottom{font-size:13px}
.notice{font-size:14px}
.download-card p{font-size:14px}
.download-card .fine-print{font-size:13px}
.inline-panel p:not(.eyebrow){font-size:14px}
.sources-box li{font-size:14px}
.sources-box p{font-size:13px}
.prep-strip span{font-size:13px}
.prep-strip p{font-size:14px}
.step p{font-size:15px}
.step code,.step kbd{font-size:13px}
.result-panel p:not(.eyebrow){font-size:14px}
.language-switcher{font-size:14px}
.language-switcher summary{display:flex;align-items:center;gap:8px;font-size:14px;padding:9px 11px}
.language-switcher summary:after{margin-left:0}
.language-icon{font-size:15px;line-height:1}
.language-menu a{font-size:14px;padding:9px 11px}
h1{ text-wrap:balance }
@media(max-width:760px){
  .main-nav a{font-size:13px}
  .header-official{font-size:12px}
  .hero h1{font-size:clamp(35px,6.4vw,48px)}
}
@media(max-width:420px){
  .art-top,.art-bottom{font-size:10px}
}