:root{--air-gutter:max(24px,calc((100vw - 1200px)/2));--air-line:#dce5f0;--air-navy:#11243d;--air-blue:#245aef;--air-space:32px}
.nav{height:88px;padding-inline:var(--air-gutter);gap:26px}.nav nav{gap:27px;font-size:13px;align-items:center;white-space:nowrap}.brand{font-size:24px;gap:10px}.brand-note{font-size:9px;margin-left:6px;padding-left:14px}.nav-account{gap:20px;min-height:40px}.account-identity{display:flex;align-items:center;gap:14px;min-height:40px}.account-name{font-size:13px;font-weight:600;color:#233b5a;max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.grade-mark{display:inline-flex;align-items:center;gap:7px;min-height:30px;font-size:11px;font-weight:600;line-height:1;white-space:nowrap;letter-spacing:-.3px;color:#5d728f}.grade-symbol{height:28px;width:28px;display:grid;place-items:center;border:1px solid #dbe4ef;background:#f3f6fb;flex-shrink:0}.grade-symbol svg{height:19px;width:19px}.grade-admin{color:#255ac4}.grade-admin .grade-symbol{background:#edf3ff;border-color:#cbdcfb}.grade-approved{color:#277c65}.grade-approved .grade-symbol{background:#edf8f4;border-color:#cce8de}.nav-account .grade-mark{font-size:10px;gap:6px}.nav-account .grade-symbol{width:25px;height:25px}.nav-account .grade-symbol svg{width:17px;height:17px}
.page-wrap,.section{max-width:none;width:100%;padding:64px var(--air-gutter) 80px;margin:0}.page-heading{margin-bottom:40px}.page-heading h1{font-size:40px;line-height:1.4;letter-spacing:-1.8px;margin-bottom:18px}.page-heading .eyebrow{margin-bottom:18px}.page-heading p{font-size:14px;line-height:1.9;margin-bottom:0}.hero,.guide-banner{padding-inline:var(--air-gutter)}footer{padding:36px var(--air-gutter) 24px}.footer-top{padding-bottom:25px;gap:30px}.footer-top>div{gap:24px}.footer-contact{padding:21px 0;border-bottom:1px solid #e7edf5}.footer-contact>a{display:flex;align-items:center;gap:12px;width:max-content;max-width:100%;font-size:12px;color:#527296}.footer-contact svg{height:19px;width:19px;color:#2e75c9;flex-shrink:0}.footer-contact strong{font-size:13px;letter-spacing:.3px;color:#29496d}.footer-contact span{font-size:11px;color:#8497b1;border-left:1px solid #dce5f0;padding-left:16px;margin-left:4px}.footer-contact b{font-size:15px;font-weight:400;margin-left:10px}.footer-bottom{margin-top:21px;align-items:start}.footer-bottom p{line-height:1.8}
.surface{padding:32px;border:1px solid var(--air-line);border-radius:0}.surface h2{font-size:24px;letter-spacing:-1px;line-height:1.45;margin-bottom:16px}.surface p{line-height:1.85}.btn{min-height:48px;border-radius:1px;padding:14px 22px;gap:24px;font-size:13px;box-shadow:none}.btn:hover{transform:none}.btn.small{min-height:38px;padding:10px 14px;font-size:11px;gap:16px}input,select,textarea{border-radius:1px;min-height:46px;padding:12px 14px;margin-top:9px}label{font-size:12px;margin-bottom:20px}textarea{resize:vertical}.account-grid{gap:28px;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr)}.grade-info{padding:32px}.membership-row{min-height:106px;gap:20px;padding:24px 0}.membership-row .grade-mark{font-size:12px}.membership-row .grade-symbol{width:34px;height:34px}.membership-row .grade-symbol svg{width:22px;height:22px}.permission-box{padding:24px;margin:24px 0}.profile-list>div{padding:10px 0}.board-callout{padding:24px;margin-bottom:36px}.board-toolbar{min-height:44px;gap:20px;margin-bottom:20px}.board-toolbar .search-label{width:280px}.search-label input{min-height:44px}.board-head,.board-row{gap:24px}.board-row{padding:27px 24px}.file-download{padding:24px;gap:20px}.file-download .btn{min-height:46px}.article-wrap .article-heading,.article-wrap .release-content,.article-wrap .file-download,.article-wrap .hash-details,.article-wrap .article-help{max-width:960px;margin-left:auto;margin-right:auto}.article-wrap>.back-link{margin-bottom:32px}.article-heading h1{font-size:32px;line-height:1.45}.release-content{line-height:1.95}.admin-summary{gap:24px;margin-bottom:32px}.admin-summary>div{padding:24px;border-radius:0;min-height:132px}.admin-summary strong{font-size:34px;line-height:1.2;margin-top:14px}.tabs{gap:28px;margin-bottom:28px;min-height:42px}.tabs button{font-size:12px;min-height:42px;padding:0 0 15px;border-bottom:2px solid transparent}.tabs button:focus-visible{outline:2px solid #4f96fa;outline-offset:4px}.member-row{padding:24px 0;gap:24px;align-items:center}.member-row h3{line-height:1.6;margin-bottom:8px}.member-edit{display:grid;grid-template-columns:124px 140px auto;gap:12px;align-items:end;max-width:520px}.member-edit label{margin-bottom:0}.member-edit select{min-height:40px;padding:9px 10px}.member-edit>.approve{grid-column:1/-1;justify-self:stretch;margin-top:0}.member-edit .btn{min-height:40px;white-space:nowrap}.member-row>.grade-mark{align-self:center}.upload-panel{max-width:none}.upload-panel #post-form{max-width:960px;margin-top:26px}.upload-panel .form-two{gap:24px}.upload-panel #post-form>button{min-width:170px}.alert{padding:16px 20px;margin-bottom:24px;font-size:12px;line-height:1.8}.audit-row{min-height:60px;grid-template-columns:190px minmax(0,1fr) 140px;align-items:center;gap:24px}.guide-player{grid-template-columns:minmax(0,1fr) 290px}.guide-player .chapters{max-height:570px;padding:24px 20px}.guide-player .chapters h2{line-height:1.5;margin-bottom:20px}.guide-player .chapters button{min-height:43px}.video-under{min-height:68px;padding:20px 24px}
.support-contact{display:grid;grid-template-columns:1fr 1fr;background:white;border:1px solid var(--air-line);margin-bottom:64px}.support-intro{padding:40px;background:var(--air-navy);color:white;display:flex;flex-direction:column;align-items:start}.support-kicker{font-size:11px;letter-spacing:.2px;color:#b5d4ff;display:flex;align-items:center;gap:8px;min-height:24px}.support-kicker i{height:6px;width:6px;background:#66c9ec;border-radius:50%}.contact-symbol{width:52px;height:52px;display:grid;place-items:center;border:1px solid #42618a;background:#ffffff06;margin-top:35px;margin-bottom:26px;color:#81b6ff}.contact-symbol svg{height:29px;width:29px}.support-intro h2{font-size:32px;line-height:1.5;letter-spacing:-1.4px;margin:0 0 20px}.support-intro p{font-size:13px;line-height:1.9;color:#99b0cf;margin:0}.support-channel{padding:40px;display:flex;flex-direction:column;justify-content:center;align-items:start}.support-channel .panel-label{margin:0 0 16px}.support-channel h3{font-size:38px;letter-spacing:-1px;font-weight:650;margin:0 0 18px;color:#16365c}.support-channel>p{font-size:12px;line-height:1.9;margin:0 0 28px;max-width:350px}.telegram-button{width:100%;justify-content:start;gap:13px;min-height:54px;padding:16px 20px}.telegram-button svg{width:21px;height:21px;flex-shrink:0}.telegram-button span{font-size:13px}.telegram-button b{margin-left:auto;font-size:20px;font-weight:400;line-height:1}.contact-facts{width:100%;margin-top:28px;padding-top:20px;border-top:1px solid var(--air-line);display:grid;gap:13px}.contact-facts>div{display:grid;grid-template-columns:90px minmax(0,1fr);gap:20px;align-items:center;font-size:12px;min-height:22px}.contact-facts span{font-size:11px;color:#8b9cb1}.contact-facts strong{font-weight:500;color:#3c5576}.support-faq{display:grid;grid-template-columns:1fr 1.5fr;gap:72px;align-items:start}.support-faq h2{font-size:30px;line-height:1.5;letter-spacing:-1.3px;margin-bottom:20px}.support-faq>div>p{font-size:13px;color:#8495ad}.faq-list{border-top:2px solid #223e65}.faq-list details{border-bottom:1px solid var(--air-line);padding:0 0 0 0}.faq-list summary{display:flex;justify-content:space-between;align-items:center;gap:24px;list-style:none;cursor:pointer;font-size:13px;font-weight:600;color:#284260;min-height:78px;padding:23px 0}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary span{font-size:22px;font-weight:300;color:#7c98bc;flex-shrink:0}.faq-list details[open] summary span{transform:rotate(45deg)}.faq-list summary:focus-visible{outline:2px solid #4b8eff;outline-offset:4px}.faq-list details p{font-size:12px;line-height:1.95;color:#768ca9;max-width:560px;margin:0 0 22px;padding-right:32px}.faq-list details>a{display:inline-block;color:#2d68dc;font-size:11px;margin:0 0 25px}
@media(max-width:1200px){:root{--air-gutter:40px}.nav{gap:24px}.nav .brand-note{display:none}.nav nav{gap:20px;font-size:12px}.account-name{max-width:90px}.account-identity{gap:10px}}
@media(max-width:1000px){.nav{height:auto;min-height:88px;flex-wrap:wrap;padding-top:20px;gap:0}.nav-account{margin-left:auto}.nav nav{order:3;width:100%;justify-content:space-between;padding:20px 0 18px;gap:18px}.page-wrap,.section{padding-top:52px;padding-bottom:64px}.support-contact{margin-bottom:52px}.support-intro,.support-channel{padding:32px}.support-faq{gap:40px;grid-template-columns:1fr 1.6fr}.guide-player{grid-template-columns:1fr}.guide-player .chapters{max-height:320px}.account-grid{gap:24px}.member-row{align-items:start}.member-edit{max-width:100%}.footer-top>div{gap:18px}.audit-row{grid-template-columns:170px minmax(0,1fr) 110px}}
@media(max-width:720px){:root{--air-gutter:22px;--air-space:24px}.nav{padding-top:18px;min-height:78px}.brand{font-size:21px}.nav nav{font-size:10px;padding-top:18px;padding-bottom:16px;gap:8px}.nav-account{gap:14px;font-size:11px;max-width:190px}.account-name{max-width:82px;font-size:12px}.account-identity{gap:9px}.nav-account .grade-mark{font-size:9px;gap:5px}.nav-account .grade-symbol{height:23px;width:23px}.nav-account .grade-symbol svg{height:16px;width:16px}.nav-account .btn.small{min-height:34px;font-size:10px;padding:9px 11px}.page-wrap,.section{padding-top:40px;padding-bottom:52px}.page-heading{margin-bottom:28px}.page-heading h1{font-size:29px;line-height:1.45;letter-spacing:-1.2px}.page-heading p{font-size:12px}.page-heading .eyebrow{font-size:8px;letter-spacing:1.6px;margin-bottom:18px}.surface{padding:24px}.surface h2{font-size:22px}.account-grid{grid-template-columns:1fr;gap:24px}.grade-info{padding:26px}.grade-info h2{font-size:26px}.btn{min-height:46px;padding:14px 18px;font-size:12px}.membership-row{min-height:100px;gap:15px}.membership-row strong{font-size:22px}.membership-row .grade-mark{font-size:10px}.membership-row .grade-symbol{width:30px;height:30px}.permission-box{padding:20px}.admin-summary{gap:10px;margin-bottom:26px}.admin-summary>div{padding:16px 12px;min-height:110px}.admin-summary strong{font-size:27px;margin-top:14px}.admin-summary>div>span{font-size:9px}.tabs{gap:12px 19px;min-height:38px;margin-bottom:24px}.tabs button{font-size:10px;min-height:36px;padding-bottom:12px}.member-row{gap:20px;padding:22px 0}.member-edit{width:100%;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px}.member-edit>button[type=submit]{grid-column:1/-1}.member-edit>.approve{width:100%;font-size:10px}.upload-panel .form-two{grid-template-columns:1fr;gap:0}.upload-panel #post-form>button{width:100%}.board-callout{padding:20px;margin-bottom:28px;gap:14px}.board-toolbar{gap:16px}.board-toolbar .search-label{width:100%}.board-row{padding:22px 16px;gap:14px}.file-download{padding:20px;gap:16px}.file-download .btn{width:100%;font-size:11px;gap:10px}.article-heading h1{font-size:27px}.audit-row{grid-template-columns:1fr;gap:7px;padding:17px 0}.support-contact{grid-template-columns:1fr;margin-bottom:42px}.support-intro,.support-channel{padding:28px 24px}.support-intro h2{font-size:28px;margin-bottom:16px}.support-intro p{font-size:12px}.support-kicker{font-size:10px}.contact-symbol{height:46px;width:46px;margin-top:26px;margin-bottom:22px}.contact-symbol svg{height:25px;width:25px}.support-channel h3{font-size:33px}.support-channel .panel-label{font-size:9px}.support-channel>p{font-size:12px;margin-bottom:24px}.telegram-button{width:100%;min-height:52px;padding:15px 17px;gap:12px}.telegram-button span{font-size:12px}.contact-facts{gap:12px;margin-top:24px;padding-top:18px}.contact-facts>div{font-size:11px;grid-template-columns:75px minmax(0,1fr);gap:12px}.contact-facts span{font-size:10px}.support-faq{grid-template-columns:1fr;gap:24px}.support-faq h2{font-size:27px;margin-bottom:14px}.support-faq>div>p{font-size:12px}.faq-list summary{font-size:12px;min-height:72px;padding:21px 0;gap:18px;line-height:1.8}.faq-list details p{font-size:11px;line-height:1.95;padding-right:5px}.faq-list details>a{font-size:11px}.footer-top{gap:20px}.footer-top>div{gap:18px;font-size:10px;flex-wrap:wrap}.footer-contact{padding:20px 0}.footer-contact>a{flex-wrap:wrap;gap:10px}.footer-contact strong{font-size:12px}.footer-contact span{font-size:9px;padding-left:10px;margin-left:0}.footer-contact b{margin-left:0}.footer-contact svg{width:17px;height:17px}.footer-bottom{margin-top:20px}.footer-bottom p{font-size:9px;line-height:1.9}.guide-player .chapters{padding:22px 18px}.video-under{min-height:68px;padding:18px 20px}}
@media(prefers-reduced-motion:reduce){.faq-list summary span{transition:none}}

/* Fixed single-line control metrics: date and text inputs share identical edges. */
input:not([type="checkbox"]):not([type="file"]),select{height:48px;min-height:48px;line-height:22px}input[type="file"]{min-height:48px;height:auto}.member-edit select{height:40px;min-height:40px;line-height:20px}.search-label input,.admin-members .board-toolbar input{height:44px;min-height:44px}.upload-panel #post-form{max-width:none}.article-wrap .article-heading,.article-wrap .release-content,.article-wrap .file-download,.article-wrap .hash-details,.article-wrap .article-help{max-width:none;margin-left:0;margin-right:0}@media(max-width:380px){.account-name{max-width:60px;font-size:11px}.brand{font-size:20px;gap:7px}.brand img{width:27px;height:31px}}