*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#101820;color:#F6F3EA;font:16px/1.82 system-ui,-apple-system,"Microsoft YaHei","PingFang SC",sans-serif;overflow-wrap:anywhere}body.drawer-open{overflow:hidden}a{color:#D6B56E;text-underline-offset:4px}a:hover{color:#f1d89c}a:focus-visible,button:focus-visible{outline:3px solid #D6B56E;outline-offset:3px}img{display:block;max-width:100%;height:auto;object-fit:contain;object-position:center}button{font:inherit;cursor:pointer}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(26px,3.2vw,36px);line-height:1.32;letter-spacing:.015em}h2{font-size:24px;line-height:1.42}h3{font-size:19px;line-height:1.45}p{margin-bottom:1.15em}small,.minor{font-size:14px}.wrap{max-width:1120px;padding-inline:28px;margin-inline:auto}.readable{max-width:820px}.section{padding-block:64px}.eyebrow{display:block;margin-bottom:16px;font-size:13px;letter-spacing:.13em;color:#D6B56E;font-weight:700}.eyebrow.dark{color:#735a27}.lead{font-size:17px;line-height:1.85;color:#C7CCD0}.pale{background:#F4F2EC;color:#26323A}.pale a,.pale-card a,.light-panel a{color:#795c23}.pale a:hover,.pale-card a:hover{color:#46320c}.site-header{background:#101820;border-bottom:1px solid #2b3741}.brand-bar{height:68px;display:flex;align-items:center;justify-content:space-between;gap:15px}.brand{display:flex;align-items:center;gap:12px;min-width:0;color:#F6F3EA;text-decoration:none}.brand:hover{color:#F6F3EA}.logo{max-width:132px;max-height:36px;width:auto;height:auto;flex:none}.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}.brand-text strong{font-size:18px;white-space:nowrap}.brand-text small{font-size:10px;letter-spacing:.12em;color:#C7CCD0;white-space:nowrap}.header-actions{display:flex;align-items:center;gap:18px;flex:none}.desktop-app{text-decoration:none;font-size:14px}.menu-trigger,.drawer-close{display:flex;align-items:center;gap:8px;justify-content:center;min-height:44px;padding:6px 14px;border:1px solid #60707b;border-radius:10px;background:#18232D;color:#F6F3EA}.primary-nav{background:#18232D}.primary-links{display:flex;align-items:center;flex-wrap:wrap;gap:4px 25px;min-height:48px}.primary-links a{position:relative;text-decoration:none;color:#F6F3EA;font-size:14px;padding:10px 0;white-space:nowrap}.primary-links a[aria-current=page]{font-weight:800}.primary-links a[aria-current=page]:after{content:"";position:absolute;bottom:4px;left:0;right:0;height:2px;background:#D6B56E}.skip{position:absolute;top:-90px;left:10px;background:#F4F2EC;color:#26323A;z-index:110;padding:7px}.skip:focus{top:5px}.hero{display:grid;grid-template-columns:minmax(0,55fr) minmax(0,45fr);gap:32px;align-items:center;padding-block:72px}.hero-copy{min-width:0}.hero .lead{max-width:620px}.hero-image{max-height:300px;width:auto;height:auto;justify-self:center}.actions{display:flex;gap:12px;flex-wrap:wrap}.button{min-height:46px;border-radius:10px;padding:9px 18px;display:inline-flex;justify-content:center;align-items:center;background:#D6B56E;border:1px solid #D6B56E;color:#18232D;text-decoration:none;font-size:15px;font-weight:700;text-align:center}.button:hover{background:#edd39c;color:#18232D}.button.secondary{background:transparent;color:#F6F3EA}.button.secondary:hover{color:#D6B56E}.steps{padding-left:0;list-style:none;counter-reset:step}.steps li{counter-increment:step;padding:18px 0 18px 48px;border-bottom:1px solid #d5d0c5;position:relative}.steps li:before{content:counter(step,decimal-leading-zero);position:absolute;top:16px;left:0;color:#795c23;font-weight:800}.steps p{margin:8px 0 0}.media-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:40px;align-items:center}.article-image{width:auto;height:auto;max-width:min(100%,460px);max-height:300px;margin:22px auto}.media-row .article-image{margin:0 auto}.rule-row{display:grid;grid-template-columns:minmax(0,.65fr) minmax(0,1.45fr);gap:44px;border-top:1px solid #3a4650;border-bottom:1px solid #3a4650}.uneven{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:20px}.feature{padding:26px;border-radius:12px}.pale-card,.light-panel{background:#F4F2EC;color:#26323A}.lined{background:#18232D;border-top:2px solid #D6B56E}.timeline{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 25px;margin:25px 0}.timeline>div{padding:22px 0;border-top:1px solid #53606a}.timeline b{color:#D6B56E}.after-pair{display:grid;grid-template-columns:1.2fr .8fr;gap:38px;margin-top:30px}.archive-pair{display:grid;grid-template-columns:1.25fr .85fr;gap:40px;align-items:start}.directory{display:flex;flex-direction:column;border-top:1px solid #58616a;margin:22px 0}.directory a{display:flex;justify-content:space-between;gap:15px;padding:12px 0;border-bottom:1px solid #58616a;text-decoration:none}.archive-pair .feature{margin-top:20px}.app-band{background:#18232D;border-block:1px solid #384550}.app-row{display:grid;grid-template-columns:1fr .55fr;gap:40px;align-items:center}.app-image{width:auto;height:auto;max-width:min(100%,220px);max-height:330px;margin:15px auto}.three{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:26px}.three>div{border-top:1px solid #D6B56E;padding-top:20px}.closing{max-width:780px;margin:45px auto 0;text-align:center;color:#C7CCD0}.article-page{padding-block:58px 70px}.article-head{max-width:760px;margin:0 auto}.article-head h1{margin-bottom:18px}.quick-index{max-width:760px;margin:26px auto 42px;padding:14px 17px;display:flex;gap:8px 18px;flex-wrap:wrap;background:#18232D;border-left:2px solid #D6B56E;border-radius:0 10px 10px 0}.quick-index strong{font-size:14px}.quick-index a{font-size:14px}.article-body{max-width:760px;margin:auto}.article-section{padding-block:26px;border-top:1px solid #44515c;scroll-margin-top:18px}.article-section p{line-height:1.87}.article-section h2{margin:0 0 20px}.article-section .article-image,.brand-image{margin:28px auto;max-width:min(100%,460px);max-height:300px}.article-section .brand-image{max-height:260px}.split{display:grid;grid-template-columns:1.35fr .65fr;gap:22px;align-items:start}.light-panel{padding:20px;border-radius:12px}.status-list{display:grid;gap:13px}.status-list>div{padding:16px 20px;border-left:3px solid #D6B56E;background:#18232D}.status-list p{margin:3px 0}.qa{padding:12px 0 17px;border-bottom:1px solid #3b4853}.qa h3{color:#D6B56E;margin-bottom:8px}.qa p{margin-bottom:0}.related{max-width:760px;margin:36px auto 0;padding:22px;border-radius:12px;background:#18232D;display:flex;gap:14px 20px;flex-wrap:wrap;align-items:center}.related h2{font-size:18px;margin:0 10px 0 0}.site-footer{background:#0a1117;border-top:1px solid #34404a;color:#C7CCD0;padding:47px 0 24px}.foot-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:26px}.foot-grid h2{font-size:16px;color:#F6F3EA}.foot-grid a{display:block;text-decoration:none;margin-bottom:8px;font-size:14px}.foot-grid p{max-width:330px;font-size:14px}.foot-brand{font-size:18px!important;color:#F6F3EA}.foot-brand small{display:block;font-size:10px;letter-spacing:.1em}.foot-bottom{border-top:1px solid #36414b;padding-top:16px;margin-top:22px;font-size:13px}.menu-overlay{position:fixed;inset:0;background:rgba(0,0,0,.65);z-index:90}.menu-drawer{position:fixed;right:0;top:0;bottom:0;width:min(360px,100vw);max-height:100dvh;overflow-y:auto;background:#18232D;box-shadow:-12px 0 35px #0005;z-index:100;padding:18px 22px 36px}.menu-overlay[hidden],.menu-drawer[hidden]{display:none!important}.drawer-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.drawer-group{padding-top:18px}.drawer-group h2{color:#D6B56E;font-size:14px;margin:0 0 10px}.drawer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px 12px}.drawer-links a{padding:7px 0;min-height:42px;display:flex;align-items:center;text-decoration:none;color:#F6F3EA;font-size:14px}.drawer-links a[aria-current=page]{color:#D6B56E;font-weight:800}.mobile-bottom{display:none}.icon-image{max-width:56px;max-height:56px;width:auto;height:auto;margin:18px 0}@media(max-width:900px){.wrap{padding-inline:24px}.primary-links{gap:2px 17px}.hero{gap:24px}.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.three{gap:17px}}@media(max-width:740px){.primary-nav{display:none}.brand-bar{height:60px}.desktop-app{display:none}.hero{grid-template-columns:minmax(0,1fr);padding-block:38px}.hero-image{max-height:190px}.media-row,.rule-row,.archive-pair,.app-row{grid-template-columns:minmax(0,1fr);gap:22px}.uneven{grid-template-columns:minmax(0,1fr)}.timeline{grid-template-columns:repeat(2,minmax(0,1fr))}.section{padding-block:40px}.article-page{padding-block:36px}.mobile-bottom{position:fixed;bottom:0;left:0;right:0;z-index:50;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));height:calc(58px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#18232D;border-top:1px solid #44515c}.mobile-bottom a,.mobile-bottom button{display:flex;flex-direction:column;justify-content:center;align-items:center;min-width:0;min-height:44px;gap:0;text-decoration:none;color:#F6F3EA;background:none;border:0;font-size:12px;line-height:1.4}.mobile-bottom span{font-size:18px}.mobile-bottom [aria-current=page]{color:#D6B56E}body{padding-bottom:calc(58px + env(safe-area-inset-bottom))}.site-footer{padding-bottom:30px}.article-image{max-height:240px!important}.app-image{max-height:300px!important}.brand-image{max-height:240px!important}}@media(max-width:600px){.wrap{padding-inline:16px}.brand-text strong{font-size:15px}.brand-text small{font-size:8px;letter-spacing:.04em}.logo{max-width:105px;max-height:33px}.brand{gap:7px}.header-actions{gap:5px}.menu-trigger{padding:5px 10px;font-size:14px}.section{padding-block:34px}h2{font-size:21px}h3{font-size:18px}.lead{font-size:16px}.timeline,.after-pair,.three,.split,.foot-grid{grid-template-columns:minmax(0,1fr)}.timeline>div{padding-block:15px}.feature{padding:18px}.article-page{padding-block:32px}.quick-index{margin-bottom:27px}.article-section{padding-block:21px}.related{align-items:flex-start}.site-footer{padding-top:34px}.foot-grid{gap:14px}.hero .button{flex:1 1 160px}.logo{object-fit:contain}}@media(max-width:390px){.logo{max-width:78px}.brand-text strong{font-size:14px}.brand-text small{font-size:7px}.brand{gap:5px}.menu-trigger{gap:5px;padding:5px 8px}}