@font-face{font-family:"RhbOnest";font-style:normal;font-weight:500 800;font-display:swap;src:url(/assets/fonts/rhb-onest-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"RhbInstrument";font-style:normal;font-weight:400 700;font-display:swap;src:url(/assets/fonts/rhb-instrument-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
:root{--rhb-ink:#1e2233;--rhb-navy:#1b2a6b;--rhb-yellow:#ffc800;--rhb-yellow-edge:#d9a500;--rhb-orange:#ff6f00;--rhb-rust:#a34400;--rhb-mist:#f5f7fa;--rhb-pale:#fff7d9;--rhb-night:#1f1f24;--rhb-line:#e3e6ec;--rhb-soft:#5b6170;color-scheme:light}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:var(--rhb-ink);font:400 17.5px/1.7 "RhbInstrument",-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
img{max-width:100%;height:auto}
a{color:var(--rhb-navy);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--rhb-rust)}
:focus-visible{outline:3px solid var(--rhb-orange);outline-offset:2px}
h1,h2,h3{font-family:"RhbOnest","Segoe UI",Arial,sans-serif;color:var(--rhb-navy);line-height:1.2;margin:0 0 .5em}
h1{font-size:2.55rem;font-weight:800;letter-spacing:-.01em}
h2{font-size:1.75rem;font-weight:700;margin-top:0}
h3{font-size:1.2rem;font-weight:700;margin:1.6em 0 .4em}
p{margin:0 0 1em}
.rhb-wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.rhb-col{max-width:848px}
.rhb-skip{position:absolute;left:-9999px;top:0;background:var(--rhb-yellow);color:var(--rhb-night);padding:12px 16px;z-index:9}
.rhb-skip:focus{left:12px}
.rhb-indep{margin:0;background:var(--rhb-night);color:#f0f0f4;font-size:.86rem;text-align:center;padding:8px 16px;line-height:1.6}
.rhb-indep a{color:var(--rhb-yellow)}
.rhb-top{background:#fff;border-bottom:4px solid var(--rhb-yellow);position:relative}
.rhb-top-in{display:flex;align-items:center;gap:20px;min-height:76px}
.rhb-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--rhb-navy);flex:none;min-height:44px}
.rhb-brand img{width:150px;height:auto;display:block}
.rhb-brand-name{font-family:"RhbOnest",Arial,sans-serif;font-weight:600;font-size:1.02rem;border-left:2px solid var(--rhb-line);padding-left:10px;line-height:1.15}
.rhb-brand-name b{display:block;color:var(--rhb-rust);font-weight:800}
.rhb-nav{display:flex;gap:2px;margin-left:auto;overflow-x:auto;scrollbar-width:thin}
.rhb-nav-a{flex:none;display:inline-flex;align-items:center;min-height:44px;padding:0 11px;border-radius:6px;text-decoration:none;color:var(--rhb-ink);font-weight:600;font-size:.98rem}
.rhb-nav-a:hover{background:var(--rhb-pale);color:var(--rhb-navy)}
.rhb-nav-a[aria-current=page]{background:var(--rhb-navy);color:#fff}
main{display:block}
/* hero */
.rhb-hero{background:var(--rhb-pale);border-bottom:1px solid #f1e3a6;padding:44px 0 36px}
.rhb-hero-in{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,.8fr);gap:40px;align-items:start}
.rhb-hero h1{font-size:2.6rem;margin-bottom:.35em}
.rhb-hero .rhb-lede{font-size:1.14rem;max-width:44em;color:#2c3044}
.rhb-search{display:flex;gap:10px;background:#fff;border:2px solid var(--rhb-navy);border-radius:10px;padding:8px;max-width:760px;margin:18px 0 14px}
.rhb-search label{position:absolute;left:-9999px}
.rhb-search input[type=search]{flex:1;min-width:0;border:0;font:inherit;font-size:1.06rem;padding:10px 12px;background:transparent;color:var(--rhb-ink)}
.rhb-search input[type=search]:focus{outline:none}
.rhb-search:focus-within{box-shadow:0 0 0 3px var(--rhb-orange)}
.rhb-search button{flex:none;border:0;border-bottom:3px solid var(--rhb-yellow-edge);background:var(--rhb-yellow);color:var(--rhb-night);font:700 1rem "RhbOnest",Arial,sans-serif;padding:0 22px;border-radius:7px;min-height:48px;cursor:pointer}
.rhb-strip{display:flex;flex-wrap:wrap;gap:6px 18px;margin:0;font-size:.95rem}
.rhb-strip a{display:inline-flex;align-items:center;min-height:44px;font-weight:600}
.rhb-hero-side{background:#fff;border:1px solid #efd98a;border-radius:12px;padding:20px 22px;box-shadow:0 2px 0 #efd98a}
.rhb-hero-side p{margin:0 0 .6em;font-size:.95rem}
.rhb-hero-side .rhb-side-head{font-family:"RhbOnest",Arial,sans-serif;font-weight:700;color:var(--rhb-navy);font-size:1.05rem}
.rhb-side-list{list-style:none;margin:0;padding:0;font-size:.93rem}
.rhb-side-list li{padding:7px 0 7px 30px;border-top:1px dashed #e9dca8;position:relative}
.rhb-side-list li::before{content:"";position:absolute;left:4px;top:12px;width:14px;height:14px;border:2px solid var(--rhb-navy);border-radius:3px}
.rhb-side-list li.rhb-done::before{background:var(--rhb-yellow);border-color:var(--rhb-yellow-edge)}
/* sections */
.rhb-sec{padding:52px 0;border-bottom:1px solid var(--rhb-line)}
.rhb-sec--mist{background:var(--rhb-mist)}
.rhb-sec ul.rhb-list,.rhb-sec ol.rhb-list{padding-left:1.25em;margin:0 0 1.1em}
.rhb-sec ul.rhb-list li,.rhb-sec ol.rhb-list li{margin:0 0 .45em}
.rhb-kicker{font-family:"RhbOnest",Arial,sans-serif;font-weight:700;color:var(--rhb-rust);font-size:.9rem;letter-spacing:.04em;text-transform:uppercase;margin:0 0 .4em}
.rhb-phead{background:var(--rhb-pale);padding:26px 0 30px;border-bottom:1px solid #f1e3a6}
.rhb-phead .rhb-lede{font-size:1.12rem;color:#2c3044;margin:0}
.rhb-crumbs p{font-size:.9rem;margin:0 0 14px;color:var(--rhb-soft)}
.rhb-sep{color:#9aa0ad}
.rhb-more{font-weight:600}
.rhb-more a{display:inline-flex;align-items:center;min-height:44px}
.rhb-note{background:#fff;border-left:5px solid var(--rhb-yellow);padding:14px 18px;margin:0 0 1.2em;border-radius:0 8px 8px 0;box-shadow:0 0 0 1px var(--rhb-line) inset}
.rhb-sec--mist .rhb-note{background:#fff}
/* shelves */
.rhb-shelves{padding:40px 0 46px;border-bottom:1px solid var(--rhb-line)}
.rhb-shelves-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px 24px;margin-bottom:18px}
.rhb-shelves-head h2{margin:0}
.rhb-shelves-head p{margin:0;color:var(--rhb-soft);max-width:36em}
.rhb-grid16{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.rhb-tile{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--rhb-line);border-radius:10px;overflow:hidden;text-decoration:none;color:var(--rhb-ink)}
.rhb-tile:hover{border-color:var(--rhb-navy);color:var(--rhb-ink)}
.rhb-tile img{display:block;width:100%;height:auto;aspect-ratio:1/1;background:var(--rhb-mist)}
.rhb-tile-name{font-family:"RhbOnest",Arial,sans-serif;font-weight:700;color:var(--rhb-navy);font-size:1.05rem;padding:10px 14px 2px}
.rhb-tile-note{font-size:.88rem;color:var(--rhb-soft);padding:0 14px 14px;line-height:1.5}
/* tick cards */
.rhb-board{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;margin:8px 0 18px}
.rhb-board--chapter{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.rhb-card{background:#fff;border:1px solid var(--rhb-line);border-top:5px solid var(--rhb-navy);border-radius:10px;padding:16px 16px 10px}
.rhb-card-step{font-family:"RhbOnest",Arial,sans-serif;font-weight:800;color:var(--rhb-navy);margin:0;font-size:1.06rem}
.rhb-card-btn{font-size:.9rem;color:var(--rhb-soft);margin:0 0 6px}
.rhb-card-btn b{color:var(--rhb-rust)}
.rhb-ticks{list-style:none;margin:0;padding:0}
.rhb-ticks li{display:flex;gap:8px;align-items:flex-start;border-top:1px dashed var(--rhb-line)}
.rhb-ticks input{flex:none;width:20px;height:20px;margin:12px 0 0 2px;accent-color:var(--rhb-navy)}
.rhb-ticks label{flex:1;padding:9px 0;min-height:44px;font-size:.93rem;line-height:1.5;cursor:pointer}
.rhb-ticks input:checked+label{color:var(--rhb-soft);text-decoration:line-through;text-decoration-color:#b9bdc8}
.rhb-card-more{margin:6px 0 4px;font-size:.92rem}
.rhb-card-more a{display:inline-flex;align-items:center;min-height:44px;font-weight:600}
.rhb-progress{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:0 0 10px}
.rhb-bar{flex:1;min-width:200px;height:12px;background:#e9ecf2;border-radius:6px;overflow:hidden}
.rhb-bar span{display:block;height:100%;width:0;background:var(--rhb-yellow);border-right:3px solid var(--rhb-yellow-edge)}
.rhb-progress output{font-weight:700;color:var(--rhb-navy)}
/* figures */
.rhb-fig{margin:30px 0;padding:0}
.rhb-fig img{display:block;width:100%;max-width:100%;height:auto;margin:0 auto;border-radius:8px}
.rhb-fig figcaption{font-size:.9rem;color:var(--rhb-soft);margin-top:10px;line-height:1.55}
.rhb-fig--shot .rhb-shot{background:var(--rhb-mist);border:1px solid var(--rhb-line);border-radius:10px;padding:0;overflow:hidden}
.rhb-fig--shot .rhb-shot img{border-radius:0}
.rhb-vid{margin:30px 0}
.rhb-vplay{display:block;position:relative;width:100%;padding:0;border:0;background:var(--rhb-night);border-radius:10px;overflow:hidden;cursor:pointer}
.rhb-vplay img{display:block;width:100%;max-width:100%;height:auto;margin:0 auto;border-radius:0}
.rhb-vid--tall .rhb-vplay img{max-width:405px}
.rhb-vid--tall .rhb-vplay{padding:14px 0}
.rhb-vplay-ic{position:absolute;left:50%;top:50%;width:76px;height:76px;margin:-38px 0 0 -38px;border-radius:50%;background:var(--rhb-yellow);box-shadow:0 0 0 6px rgba(31,31,36,.35)}
.rhb-vplay-ic::after{content:"";position:absolute;left:30px;top:22px;border-style:solid;border-width:16px 0 16px 26px;border-color:transparent transparent transparent var(--rhb-night)}
.rhb-vplay:hover .rhb-vplay-ic{background:#ffd633}
.rhb-vframe{position:relative;width:100%;aspect-ratio:16/9;background:#000;border-radius:10px;overflow:hidden}
.rhb-vid--tall .rhb-vframe{max-width:405px;aspect-ratio:9/16;margin:0 auto}
.rhb-vframe iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.rhb-vslot{aspect-ratio:16/9;background:var(--rhb-mist)}
.rhb-gslot{aspect-ratio:16/10;background:var(--rhb-mist)}
/* tables */
.rhb-tablewrap{overflow-x:auto;margin:0 0 1.2em;border:1px solid var(--rhb-line);border-radius:10px;position:relative}
.rhb-table{border-collapse:collapse;width:100%;font-size:.94rem;background:#fff}
.rhb-table th,.rhb-table td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--rhb-line);vertical-align:top}
.rhb-table th{background:var(--rhb-mist);font-family:"RhbOnest",Arial,sans-serif;color:var(--rhb-navy);font-weight:700}
.rhb-table tr:last-child td{border-bottom:0}
/* faq */
.rhb-faq details{border-top:1px solid var(--rhb-line);padding:4px 0}
.rhb-faq details:last-child{border-bottom:1px solid var(--rhb-line)}
.rhb-faq summary{cursor:pointer;font-weight:700;color:var(--rhb-navy);padding:10px 0;min-height:44px;list-style-position:outside}
.rhb-faq details p{margin:.2em 0 1em}
/* cta band */
.rhb-band{background:var(--rhb-navy);color:#fff;padding:44px 0}
.rhb-band h2{color:#fff}
.rhb-band p{color:#e6e9f5;max-width:46em}
.rhb-band a:not(.rhb-btn){color:var(--rhb-yellow)}
.rhb-btn{display:inline-flex;align-items:center;min-height:48px;padding:10px 24px;background:var(--rhb-yellow);color:var(--rhb-night);border-bottom:3px solid var(--rhb-yellow-edge);border-radius:8px;font:700 1.02rem "RhbOnest",Arial,sans-serif;text-decoration:none}
.rhb-btn:hover{background:#ffd633;color:var(--rhb-night)}
/* tools */
.rhb-tool{background:#fff;border:1px solid var(--rhb-line);border-radius:12px;padding:22px;margin:0 0 1.4em}
.rhb-form{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px 18px;margin:0 0 14px}
.rhb-form label{display:block;font-weight:600;font-size:.94rem;margin-bottom:4px}
.rhb-form input,.rhb-form select{width:100%;font:inherit;padding:10px 12px;min-height:46px;border:1px solid #b9bfcc;border-radius:7px;background:#fff;color:var(--rhb-ink)}
.rhb-tool button{font:700 .98rem "RhbOnest",Arial,sans-serif;min-height:46px;padding:0 20px;border-radius:7px;border:0;border-bottom:3px solid var(--rhb-yellow-edge);background:var(--rhb-yellow);color:var(--rhb-night);cursor:pointer}
.rhb-tool button.rhb-quiet{background:#fff;border:1px solid #b9bfcc;color:var(--rhb-ink)}
.rhb-out{background:var(--rhb-mist);border-radius:8px;padding:14px 16px;margin-top:12px;min-height:3em}
.rhb-out p{margin:0 0 .4em}
.rhb-out p:last-child{margin:0}
.rhb-out-strong{font-weight:700;color:var(--rhb-navy)}
/* footer */
.rhb-foot{background:var(--rhb-night);color:#d9dbe3;padding:44px 0 26px;margin-top:0}
.rhb-foot a{color:#fff}
.rhb-foot-top{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:28px}
.rhb-fname{font-family:"RhbOnest",Arial,sans-serif;font-weight:800;color:var(--rhb-yellow);font-size:1.1rem}
.rhb-fhead{font-family:"RhbOnest",Arial,sans-serif;font-weight:700;color:#fff;margin:0 0 6px}
.rhb-fcol ul{list-style:none;margin:0;padding:0}
.rhb-fcol li a{display:inline-flex;align-items:center;min-height:44px;min-width:44px;text-decoration:none;font-size:.95rem}
.rhb-fcol li a:hover{color:var(--rhb-yellow);text-decoration:underline}
.rhb-fabout p{font-size:.94rem}
.rhb-fsmall{font-size:.84rem;color:#b5b8c4;border-top:1px solid #3a3a44;padding-top:16px;margin:22px 0 0}
.rhb-twocol{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px}
.rhb-twocol>div{background:#fff;border:1px solid var(--rhb-line);border-radius:10px;padding:20px 22px}
.rhb-twocol h3{margin-top:0}
@media (max-width:1100px){
 .rhb-top-in{flex-wrap:wrap;gap:4px 16px;padding:8px 0}
 .rhb-nav{margin-left:0;width:100%}
 .rhb-hero-in{grid-template-columns:minmax(0,1fr)}
 .rhb-grid16{grid-template-columns:repeat(3,minmax(0,1fr))}
 .rhb-foot-top{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
}
@media (max-width:700px){
 body{font-size:16.5px}
 .rhb-wrap{padding:0 16px}
 h1,.rhb-hero h1{font-size:1.9rem}
 h2{font-size:1.45rem}
 .rhb-sec{padding:38px 0}
 .rhb-grid16{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
 .rhb-search{flex-wrap:wrap}
 .rhb-search button{width:100%}
 .rhb-fig--shot .rhb-shot{overflow-x:auto}
 .rhb-fig--shot .rhb-shot img{max-width:none;width:640px}
 .rhb-twocol{grid-template-columns:minmax(0,1fr)}
 .rhb-foot-top{grid-template-columns:minmax(0,1fr)}
 .rhb-brand-name{font-size:.92rem}
 .rhb-hero-side{display:none}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}