/* 叶建平课程专栏 2026-10-10；仅作用于本栏新版 body.bs-*。 */
body[class^="bs-"]{--ink:#282d31;--brand:#8c6429;--brand-dark:#493b28;--soft:#faf8f3;--warm:#f0ece4;--line:#e7e1d7;--muted:#6b6e72;margin:0;background:#fff;color:var(--ink);font:16px/1.75 "Microsoft YaHei","PingFang SC",Arial,sans-serif}
body[class^="bs-"] *,body[class^="bs-"] *::before,body[class^="bs-"] *::after{box-sizing:border-box}
body[class^="bs-"] a{color:inherit;text-decoration:none}body[class^="bs-"] a:hover{color:var(--brand)}
body[class^="bs-"] a:focus-visible,body[class^="bs-"] button:focus-visible,body[class^="bs-"] summary:focus-visible{outline:3px solid #286ba0;outline-offset:3px}
body[class^="bs-"] img{max-width:100%;height:auto}body[class^="bs-"] figure{margin:0}
body[class^="bs-"] h1,body[class^="bs-"] h2,body[class^="bs-"] h3,body[class^="bs-"] p{margin-top:0}
.bs-wrap{width:min(1180px,calc(100% - 56px));margin:0 auto}
.bs-utility{background:var(--warm);font-size:12px;color:var(--muted)}.bs-utility .bs-wrap{display:flex;justify-content:space-between;gap:12px;padding:6px 0}
.bs-header{display:flex;align-items:center;gap:40px;padding:10px 0}.bs-brand{display:block;flex:0 0 auto;width:min(270px,32vw)}.bs-brand img{display:block;width:100%;height:auto}
.bs-nav{display:flex;align-self:stretch;align-items:center;gap:30px;margin-left:auto}.bs-nav a{display:flex;align-items:center;height:56px;border-bottom:3px solid transparent;font-size:17px;font-weight:700;white-space:nowrap;transition:color .2s,border-color .2s}.bs-nav a:hover{border-color:var(--line)}.bs-nav a[aria-current]{color:var(--brand);border-color:var(--brand)}
.bs-phone{font-size:21px;line-height:1.45;font-weight:700;color:var(--brand)!important;white-space:nowrap}.bs-phone small{display:block;color:var(--muted);font-weight:400;font-size:12px}
.bs-hero{position:relative;background:var(--soft);border-top:1px solid var(--line);min-height:470px}
.bs-hero-image{position:absolute;inset:0 max(24px,calc((100vw - 1180px)/2)) 0 calc(50% + 18px);display:flex;align-items:center;background:var(--soft)}
.bs-hero-image>a{display:block;width:min(100%,560px);height:auto;margin:0 auto;transition:transform .25s ease}.bs-hero-image>a:hover{transform:translateY(-3px)}.bs-hero-image img{display:block;width:100%;height:auto!important;object-fit:contain}
.bs-hero-grid{position:relative;display:flex;align-items:center;min-height:470px;padding:40px 0;pointer-events:none}.bs-hero-copy{width:44%;max-width:500px;pointer-events:auto;animation:bs-enter .65s ease-out both}
.bs-kicker{display:block;font-size:12px;letter-spacing:.14em;font-weight:700;color:var(--brand);margin-bottom:12px}
.bs-hero h1{font-size:clamp(35px,3.1vw,45px);line-height:1.4;font-weight:700;letter-spacing:.01em;margin:6px 0 22px}.bs-hero p{font-size:16px;line-height:1.9;color:var(--muted);margin-bottom:26px}
.bs-button{display:inline-flex;align-items:center;gap:26px;background:var(--brand);color:#fff!important;padding:12px 22px;font-size:16px;font-weight:700;transition:background .2s,transform .2s}.bs-button:hover{background:var(--brand-dark);transform:translateY(-2px)}
.bs-hero-caption{font-size:12px;color:var(--muted);margin-top:22px;letter-spacing:.06em}
.bs-section{padding:62px 0 10px}.bs-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:10px}.bs-section-head .bs-kicker{margin-bottom:4px}
.bs-section h2{font-size:32px;line-height:1.4;margin-bottom:0;font-weight:700;padding-left:14px;border-left:4px solid var(--brand)}.bs-section-head>a{font-size:15px;font-weight:700;color:var(--brand)!important;white-space:nowrap}
.bs-intro{font-size:15px;color:var(--muted);margin:10px 0 26px}
.bs-catalog{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin:0;padding:0}.bs-catalog dd{margin:0;min-width:0}
.bs-catalog .row-data{display:flex;flex-direction:column;gap:6px;height:100%;padding:0 0 20px;background:#fff;border:1px solid var(--line)}
.bs-catalog .row-img{order:0;background:var(--soft);margin-bottom:10px}.bs-catalog .row-img a{display:block}.bs-catalog .row-img img{display:block;width:100%;height:170px!important;object-fit:contain}
.bs-catalog h3{font-size:18px;line-height:1.6;margin:0 20px 6px;font-weight:700;overflow-wrap:anywhere}.bs-catalog h3 a:hover{text-decoration:underline}
.bs-catalog .row-time,.bs-catalog .row-date,.bs-catalog .row-place,.bs-catalog .row-fee,.bs-catalog .row-system{margin:0 20px;font-size:14px;line-height:1.75;color:var(--muted)}.bs-catalog .row-time span,.bs-catalog .row-date span,.bs-catalog .row-place span,.bs-catalog .row-fee span,.bs-catalog .row-system span{color:var(--ink)}
.bs-catalog .row-system:has(span:empty),.bs-catalog .row-time:empty{display:none}
.bs-catalog .jz-info{display:flex;gap:18px;margin:auto 20px 0;padding-top:12px}.bs-catalog .jz-info a{font-size:14px;font-weight:700;color:var(--brand)!important;padding:4px 0;border-bottom:1px solid var(--line)}.bs-catalog .jz-info a[href=""]{display:none}
.bs-course-note{font-size:13px;color:var(--muted);margin:22px 0 0}
.bs-value-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 48px;margin-top:24px}.bs-value-grid article{border-top:1px solid var(--line);padding-top:22px}.bs-value-grid article>span{color:var(--brand);font-size:14px;font-weight:700}.bs-value-grid h3{font-size:24px;line-height:1.4;margin:9px 0 14px}.bs-value-grid p{color:var(--muted);line-height:1.9}.bs-value-grid a{color:var(--brand)!important;font-weight:700;font-size:14px}
.bs-classroom{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start;gap:42px;margin-top:28px}.bs-classroom>a{display:block;min-width:0}.bs-classroom img{display:block;width:100%;height:auto!important;object-fit:contain;margin:0 auto}.bs-classroom figcaption{font-size:24px;font-weight:700;line-height:1.5;margin:20px 0 12px}.bs-classroom p{font-size:15px;color:var(--muted);line-height:1.9;margin-bottom:0}.bs-classroom>a:hover figcaption{color:var(--brand)}
section.bs-news ul{display:grid;grid-template-columns:1fr 1fr;gap:0 44px;list-style:none;padding:0;margin:20px 0 0}section.bs-news li{border-top:1px solid var(--line);min-width:0}section.bs-news li a{display:block;padding:16px 0;font-size:16px;line-height:1.65;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}section.bs-news li a::before{content:"↗";color:var(--brand);margin-right:12px}
.bs-faq details{padding:18px 0;border-bottom:1px solid var(--line)}.bs-faq details:first-of-type{margin-top:16px;border-top:1px solid var(--line)}.bs-faq summary{display:flex;justify-content:space-between;gap:20px;list-style:none;font-size:18px;font-weight:700;cursor:pointer}.bs-faq summary::-webkit-details-marker{display:none}.bs-faq summary::after{content:"+";color:var(--brand);font-size:23px;line-height:1.3;transition:transform .2s}.bs-faq details[open] summary::after{transform:rotate(45deg)}.bs-faq details p{margin:14px 0 0;color:var(--muted)}.bs-faq details p a{color:var(--brand);text-decoration:underline}
.bs-registration{margin:60px 0;display:grid;grid-template-columns:.8fr 1.4fr;gap:64px;background:var(--soft);border-top:3px solid var(--brand);padding:42px}.bs-registration h2{font-size:30px;line-height:1.4;margin-bottom:16px;padding:0;border:0}.bs-registration p{font-size:15px;color:var(--muted)}.bs-registration>div>a{font-size:23px;color:var(--brand)!important;font-weight:700}
.bs-registration form{display:grid;grid-template-columns:1fr 1fr;gap:18px 20px}.bs-registration label{display:block;font-size:16px;font-weight:700}.bs-registration em{font-style:normal;color:var(--brand)}.bs-registration small{font-size:13px;color:var(--muted);font-weight:400}
.bs-registration input,.bs-registration textarea{display:block;width:100%;border:1px solid #becbd6;background:#fff;border-radius:0;padding:11px 13px;font:15px/1.5 "Microsoft YaHei",Arial,sans-serif;color:var(--ink);margin-top:7px}.bs-registration input:focus,.bs-registration textarea:focus{outline:2px solid var(--brand);outline-offset:1px}
.bs-registration button{border:0;background:var(--brand);color:#fff;cursor:pointer;font:700 16px/1.5 "Microsoft YaHei",sans-serif;padding:13px 22px;justify-self:start}.bs-registration button:hover{background:var(--brand-dark)}.bs-registration .bs-form-note{margin:0;font-size:12px}.bs-full{grid-column:1/-1}
.bs-crumb{display:flex;align-items:center;gap:10px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0;font-size:14px;color:var(--muted);white-space:nowrap;overflow:hidden}.bs-crumb a{flex:none;color:var(--brand)!important}.bs-crumb i{font-style:normal;color:#a7a09c}.bs-crumb span{overflow:hidden;text-overflow:ellipsis;min-width:0}
.bs-directory{padding-top:40px}.bs-directory h1,.bs-news-directory h1{font-size:34px;line-height:1.4;margin:0 0 12px}.bs-directory .bs-catalog{margin-top:30px}
.bs-news-directory{padding-top:36px;padding-bottom:50px}.bs-news-directory .content-left{float:none;width:100%;border:0;padding:0;margin:0;background:transparent}
.content-left-list1{list-style:none;margin:24px 0 0;padding:0}.content-left-list1 li{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;border-top:1px solid var(--line);padding:16px 0;min-width:0}.content-left-list1 a{flex:1;min-width:0;font-size:16px;line-height:1.65;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.content-left-list1 span{font-size:13px;color:var(--muted);flex:none;padding-top:3px}.content-left-list1 .clear{display:none}
#fenye{display:block!important;padding:26px 0;line-height:2.6;font-size:14px}#fenye table{margin:0 auto}#fenye a{display:inline-block;padding:1px 9px;margin:0 3px;border:1px solid var(--line);color:var(--brand)}#fenye a.curr{background:var(--brand);border-color:var(--brand);color:#fff}#fenye a.curr font{color:#fff!important}
.bs-article-grid{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:46px;padding:34px 0 10px;align-items:start}.bs-article{min-width:0}.bs-article>h1{font-size:29px;line-height:1.55;text-align:center;margin:0 0 20px}
.bs-article .content-info{font-size:13px;line-height:1.9;color:var(--muted);text-align:center;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:26px}.bs-article .content-info span{padding:0 14px 0 2px;color:#51575b}
.bs-body{font-size:17px;line-height:1.95;overflow-wrap:anywhere}.bs-body p{margin:0 0 18px}.bs-body img{max-width:100%!important;height:auto!important}.bs-body table{max-width:100%!important}.bs-body #MyContent{width:100%;overflow-x:auto}.bs-body #MyContent ul,.bs-body #MyContent ol{max-width:100%!important}
.bs-article .bs-registration{display:block;padding:26px;margin-top:34px}.bs-article .bs-registration>div p,.bs-article .bs-registration>div>a,.bs-article .bs-registration .bs-kicker{display:none}.bs-article .bs-registration form{margin-top:18px}
.bs-sidebar{border-left:1px solid var(--line);padding-left:24px}.bs-sidebar h3{font-size:18px;margin:0 0 12px}.bs-sidebar ul{list-style:none;margin:0 0 12px;padding:0}.bs-sidebar li{border-top:1px solid var(--line);padding:11px 0;font-size:14px;line-height:1.65}
.bs-contact{margin-top:22px;background:var(--soft);padding:20px}.bs-contact span{display:block;font-size:13px;color:var(--muted)}.bs-contact>a{display:block;font-size:20px;font-weight:700;color:var(--brand);margin-top:6px}.bs-contact .bs-button{display:flex;justify-content:center;font-size:15px;padding:9px;margin-top:14px}
body[class^="bs-"] .footer{border-top:1px solid var(--line);padding:28px 20px;background:var(--soft);text-align:center;color:var(--muted);font-size:12px;line-height:1.8}body[class^="bs-"] .footer p{margin:4px 0}
.fixed-bottom{display:none}.bs-reveal.bs-arrived{animation:bs-enter .6s ease-out both}
@keyframes bs-enter{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@media(min-width:641px) and (max-width:1000px){.bs-header{gap:22px}.bs-nav{gap:18px}.bs-phone{display:none}.bs-hero,.bs-hero-grid{min-height:350px}.bs-hero-grid{padding:26px 0}.bs-hero-image{left:calc(50% + 12px);right:96px}.bs-hero-copy{width:45%;max-width:380px}.bs-hero h1{font-size:clamp(26px,3.6vw,36px)}.bs-hero p{font-size:14px}.bs-catalog{grid-template-columns:repeat(2,minmax(0,1fr))}.bs-registration{gap:32px;padding:30px}.bs-article-grid{grid-template-columns:minmax(0,1fr) 220px;gap:26px}}
@media(max-width:640px){
 html,body[class^="bs-"]{max-width:100vw;overflow-x:hidden}body[class^="bs-"]{padding-bottom:calc(66px + env(safe-area-inset-bottom));font-size:15px}
 .bs-wrap{width:calc(100% - 32px)}.bs-utility{font-size:11px}.bs-utility .bs-wrap{padding:5px 0}
 .bs-header{display:block;padding:8px 0 0;width:100%}.bs-brand{width:180px;margin:0 16px 6px}.bs-phone{display:none}
 .bs-nav{display:flex;gap:0;border-top:1px solid var(--line);border-bottom:2px solid var(--brand);width:100%}.bs-nav a{flex:1;justify-content:center;font-size:15px;height:44px;border:0}.bs-nav a[aria-current]{background:var(--brand);color:#fff}
 .bs-hero{display:flex;flex-direction:column;min-height:0}.bs-hero-grid{display:block;min-height:0;padding:21px 0 18px}.bs-hero-copy{width:100%;max-width:none}
 .bs-kicker{font-size:11px;letter-spacing:.1em;margin-bottom:8px}.bs-hero h1{font-size:31px;line-height:1.4;margin:5px 0 13px}.bs-hero p{font-size:14px;line-height:1.8;margin-bottom:16px}
 .bs-button{font-size:14px;padding:10px 18px}.bs-hero-caption{font-size:11px;margin-top:13px}
 .bs-hero-image{position:relative;order:1;inset:auto;width:100%;height:auto;padding:0 16px 22px;display:block}.bs-hero-image>a{width:min(100%,330px);height:auto}
 .bs-section{padding-top:34px;padding-bottom:0}.bs-section-head{align-items:center;gap:8px;margin-bottom:6px}.bs-section h2{font-size:23px;padding-left:10px}.bs-section-head>a{font-size:13px}.bs-intro{font-size:13px;margin:8px 0 12px}
 .bs-catalog{display:block}.bs-catalog dd{border-top:1px solid var(--line)}.bs-catalog dd:last-child{border-bottom:1px solid var(--line)}.bs-catalog .row-data{border:0;padding:16px 0;gap:4px}.bs-catalog .row-img{display:none}
 .bs-catalog h3{font-size:17px;line-height:1.6;margin:0 0 6px;white-space:normal}.bs-catalog h3 a{display:block}.bs-catalog .row-time,.bs-catalog .row-date,.bs-catalog .row-place,.bs-catalog .row-fee,.bs-catalog .row-system{margin:0;font-size:13px;line-height:1.7}.bs-catalog .jz-info{margin:0;padding-top:8px}.bs-catalog .jz-info a{font-size:13px}
 .bs-course-note{font-size:12px;margin-top:14px}.bs-value-grid{grid-template-columns:1fr;gap:24px;margin-top:18px}.bs-value-grid h3{font-size:21px}.bs-value-grid p{font-size:14px}.bs-value-grid a{font-size:13px}
 .bs-classroom{grid-template-columns:1fr;gap:26px;margin-top:24px}.bs-classroom figcaption{font-size:21px;margin:16px 0 10px}.bs-classroom p{font-size:14px}
 section.bs-news ul{display:block;margin-top:12px}section.bs-news li a{font-size:14px;padding:14px 0}section.bs-news li a::before{margin-right:8px}
 .bs-faq summary{font-size:16px}.bs-faq details p{font-size:14px}
 .bs-registration{display:block;padding:24px 18px;margin:34px 0}.bs-registration h2{font-size:23px;margin-bottom:10px}.bs-registration>div>a{font-size:21px}.bs-registration>div p{font-size:13px;margin-bottom:8px}.bs-registration form{display:block;margin-top:20px}.bs-registration label{font-size:15px;margin:0 0 14px}.bs-registration input,.bs-registration textarea{font-size:16px}.bs-registration button{width:100%;font-size:15px;margin-bottom:10px}
 .bs-crumb{font-size:12px;padding:12px 0;gap:7px}.bs-directory,.bs-news-directory{padding-top:24px}.bs-directory h1,.bs-news-directory h1{font-size:24px}.bs-directory .bs-catalog{margin-top:16px}.bs-news-directory{padding-bottom:24px}
 .content-left-list1{margin-top:16px}.content-left-list1 li{gap:10px;padding:14px 0}.content-left-list1 a{font-size:14px}.content-left-list1 span{font-size:11px}#fenye{font-size:12px}#fenye a{padding:0 6px;margin:2px}
 .bs-article-grid{display:block;padding-top:24px}.bs-sidebar{display:none}.bs-article>h1{font-size:23px;line-height:1.5}.bs-article .content-info{font-size:11px}.bs-body{font-size:16px;line-height:1.9}.bs-body,.bs-body #MyContent{max-width:100%;overflow:auto}.bs-article .bs-registration{padding:22px 16px}
 .fixed-bottom{position:fixed;z-index:10000;left:0;bottom:0;width:100vw;display:flex;background:var(--brand);padding-bottom:env(safe-area-inset-bottom);height:calc(64px + env(safe-area-inset-bottom));box-shadow:0 -2px 10px #1f2a2e20}.fixed-bottom>a{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:3px;width:25%;border-right:1px solid #ffffff24;color:#fff!important;font-size:13px}.fixed-bottom>a:last-child{border-right:0}.fixed-bottom img{width:23px;height:23px;object-fit:contain}.fixed-bottom span{line-height:1.5}
 body[class^="bs-"] #newBridge,body[class^="bs-"] .embed-icon,body[class^="bs-"] .nb-icon-wrap,body[class^="bs-"] #nb_icon_wrap,body[class^="bs-"] [id^="nb_icon_wrap"],body[class^="bs-"] .down-open{display:none!important}
}
@media(prefers-reduced-motion:reduce){body[class^="bs-"] *,body[class^="bs-"] *::before,body[class^="bs-"] *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

@media(max-width:640px){.bs-hero h1{font-size:29px;line-height:1.35}.bs-hero-grid{padding-top:18px}.bs-hero p{margin-bottom:13px}.bs-hero-image>a{width:min(100%,300px)}.bs-hero-caption{margin-top:10px}}


.bs-brand{width:min(286px,32vw)}.bs-hero,.bs-hero-grid{min-height:460px}.bs-hero-copy{width:43%}.bs-hero h1{font-size:clamp(36px,3.8vw,49px);line-height:1.38}.bs-catalog .row-img img{height:auto!important;object-fit:contain}.bs-catalog .row-data{border:0;border-bottom:1px solid var(--line)}.bs-classroom{gap:44px}.bs-classroom img{max-width:100%;height:auto!important}.bs-article .content-info{overflow-wrap:anywhere}
body[data-class="20245974573114"] .bs-nav a[href="/yjpkc/list_3404.html"],body[data-class="20249114239143"] .bs-nav a[href="/yjpkc/list_3405.html"]{color:var(--brand);border-color:var(--brand)}
@media(min-width:641px) and (max-width:1000px){.bs-hero,.bs-hero-grid{min-height:370px}.bs-hero-copy{width:44%}.bs-hero h1{font-size:29px}.bs-hero p{font-size:14px}.bs-brand{width:220px}.bs-nav{gap:19px}.bs-header{gap:25px}}
@media(max-width:640px){.bs-brand{width:210px}.bs-header{padding-top:6px}.bs-hero,.bs-hero-grid{min-height:0}.bs-hero-copy{width:100%}.bs-hero-grid{padding:15px 0 15px}.bs-hero h1{font-size:29px;line-height:1.3;margin:3px 0 10px}.bs-hero p{font-size:13px;line-height:1.65;margin-bottom:12px}.bs-hero-caption{display:none}.bs-hero-image{padding-bottom:17px}.bs-hero-image>a{width:min(100%,300px)}.bs-catalog .row-img{display:none}.bs-catalog .row-data{border:0}.bs-classroom{gap:26px}.bs-hero .bs-kicker{margin-bottom:7px}.bs-nav a{height:42px}.bs-registration{margin-top:35px}body[data-class="20245974573114"] .bs-nav a[href="/yjpkc/list_3404.html"],body[data-class="20249114239143"] .bs-nav a[href="/yjpkc/list_3405.html"]{background:var(--brand);color:#fff}}

@media(max-width:360px){.bs-hero h1{font-size:25px}}

.bs-brand{width:min(320px,32vw)}
@media(min-width:641px) and (max-width:1000px){.bs-brand{width:250px}.bs-header{gap:20px}.bs-nav{gap:16px}}
@media(max-width:640px){.bs-brand{width:250px}.bs-hero-image>a{width:min(100%,300px)}}

/* One existing course: full title above the original course image and facts. */
.bs-catalog{grid-template-columns:1fr}.bs-catalog .row-data{display:grid;grid-template-columns:300px minmax(0,1fr);gap:8px 35px;padding:20px 0 28px}.bs-catalog h3{grid-column:1/-1;margin:0 0 12px;font-size:24px}.bs-catalog .row-img{order:0;grid-column:1;grid-row:2/7;margin:0;background:transparent;align-self:start}.bs-catalog .row-date,.bs-catalog .row-place,.bs-catalog .row-fee,.bs-catalog .row-system,.bs-catalog .jz-info{grid-column:2;margin:0;font-size:16px}.bs-catalog .jz-info{padding-top:10px}.bs-brand{width:270px}
@media(min-width:641px) and (max-width:1000px){.bs-catalog .row-data{grid-template-columns:240px minmax(0,1fr);gap:8px 28px}.bs-brand{width:220px}}
@media(max-width:640px){.bs-catalog .row-data{display:flex;gap:7px;padding:12px 0 22px}.bs-catalog h3{font-size:20px;margin:0 0 8px}.bs-catalog .row-date,.bs-catalog .row-place,.bs-catalog .row-fee,.bs-catalog .row-system{font-size:14px}.bs-brand{width:210px}}

.bs-classroom{grid-template-columns:1fr 1fr;align-items:start}.bs-classroom figure{max-width:857px}.bs-module-list{display:grid;gap:15px}.bs-module-list article{padding:0 0 14px;border-bottom:1px solid var(--line)}.bs-module-list h3{font-size:19px;margin:0 0 5px}.bs-module-list p{margin:0;font-size:14px}.bs-teacher{margin-top:45px;padding:26px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:180px 1fr;gap:35px}.bs-teacher h3{font-size:30px;margin:0}.bs-teacher p{color:var(--muted)}.bs-teacher a{color:var(--brand);font-weight:700}.bs-directory h1,.bs-news-directory h1{text-wrap:balance}
@media(max-width:640px){.bs-classroom,.bs-teacher{grid-template-columns:1fr;gap:20px}.bs-teacher{margin-top:30px}.bs-teacher h3{font-size:25px}}