/* A scenic editorial home; the working interface starts at #learn. */
@media(min-width:769px){
  body.brand-home-active #sidebar,body.brand-home-active #immersiveNav,body.brand-home-active .geo-faq{display:none!important}
  body.brand-home-active #view{margin:0!important;padding:0!important;width:100%;max-width:none!important;background:#fff!important}
  body.brand-home-active>.workspace-bar{position:fixed!important;inset:0 24px auto auto!important;z-index:2100;width:auto;height:76px;padding:0;border:0;background:transparent;box-shadow:none}
  body.brand-home-active>.workspace-bar>div:first-child,body.brand-home-active>.workspace-bar>p{display:none}
  body.brand-home-active .account-entry{position:static;display:flex;background:transparent}
  body.brand-home-active .account-entry button{font-size:13px;max-width:170px}
}
.bh-page,.lc-page{--bh-blue:#0066ff;--bh-ink:#10203f;--bh-muted:#61718b;color:var(--bh-ink);font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif}
.bh-page{background:#fff;--bh-serif:'Songti SC','STSong','Noto Serif CJK SC',serif}
.bh-page *,.lc-page *{box-sizing:border-box}
.bh-page button,.lc-page button{font-family:inherit;cursor:pointer}
.bh-page a{color:inherit;text-decoration:none}
.bh-page :is(button,a,select,summary):focus-visible,.lc-page :is(button,a):focus-visible{outline:3px solid #78adff;outline-offset:5px}
.bh-container{width:min(1220px,calc(100% - 112px));margin:0 auto}
.bh-topbar{position:sticky;top:0;z-index:2000;display:flex;align-items:center;gap:32px;height:76px;padding:0 32px;background:#ffffffed;border-bottom:1px solid #e9edf4;backdrop-filter:blur(14px)}
.bh-logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.bh-logo img{width:42px;height:42px;object-fit:contain}.bh-logo b{font-size:20px;font-weight:650;letter-spacing:.08em}.bh-logo>span{font-size:9px;letter-spacing:.14em;border-left:1px solid #dce3ef;padding-left:18px;margin-left:8px;color:#667692}
.bh-nav-links{display:flex;gap:26px;margin-left:auto;white-space:nowrap;font-size:12px}.bh-nav-links a{padding:15px 0}.bh-nav-links a:hover{color:#0066ff}.bh-account-space{flex:0 0 154px}
.bh-hero{position:relative;isolation:isolate;min-height:640px;height:min(700px,calc(100vh - 132px));background:#f4f7fa}
.bh-hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;z-index:-1}
.bh-hero-copy{width:min(1220px,calc(100% - 112px));height:100%;margin:auto;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding:52px 0 35px}
.bh-eyebrow{display:block;color:#0066ff;font-size:11px;font-weight:650;letter-spacing:.14em;line-height:1.7}
.bh-hero h1{font-family:var(--bh-serif);font-size:clamp(52px,5.2vw,78px);font-weight:650;letter-spacing:.015em;line-height:1.25;margin:21px 0 24px;color:#10203f;text-shadow:0 1px 14px #ffffff70}
.bh-hero-copy>p{margin:0;color:#43566b;font:21px/1.9 var(--bh-serif);letter-spacing:.05em}
.bh-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:33px}
.bh-button{display:inline-flex;justify-content:center;align-items:center;gap:24px;min-height:48px;padding:12px 23px;border:1px solid #0066ff;border-radius:5px;background:#0066ff;color:#fff;font-size:14px;font-weight:600;line-height:1.5;box-shadow:0 4px 12px #0066ff14}
.bh-button-secondary{background:#ffffffbc;color:#0066ff;box-shadow:none;border-color:#9ebff1}.bh-button span{font-size:16px}.bh-down{font-size:11px;color:#5e6f83!important;margin-top:55px;letter-spacing:.03em}.bh-down span{display:inline-block;margin-left:15px;font-size:17px}
.bh-ribbon{display:grid;grid-template-columns:repeat(4,1fr);padding:25px max(56px,calc((100vw - 1220px)/2));border-bottom:1px solid #e8edf4;background:#fff}.bh-ribbon>span{display:flex;gap:13px;align-items:center;justify-content:center;border-right:1px solid #e2e8f2}.bh-ribbon>span:last-child{border:0}.bh-ribbon svg,.lc-tools svg{height:23px;width:23px;fill:none;stroke:currentColor;stroke-width:1.4;flex-shrink:0}.bh-ribbon b{font-size:14px;font-weight:500;letter-spacing:.04em}
.bh-heading h2{font:600 clamp(29px,3vw,40px)/1.55 var(--bh-serif);letter-spacing:.015em;margin:16px 0 22px}.bh-heading p{font-size:14px;line-height:1.9;color:#61718b;margin:0;max-width:400px}
.bh-why{display:grid;grid-template-columns:230px minmax(0,1fr);gap:50px;padding:96px 0 104px}.bh-why .bh-heading:after{content:'';display:block;width:38px;height:2px;background:#0066ff;margin-top:30px}.bh-reasons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px}.bh-reasons article{min-width:0}.bh-reasons img{width:100%;aspect-ratio:1/1.15;object-fit:cover;display:block}.bh-reasons h3{font:600 19px/1.55 var(--bh-serif);margin:19px 0 9px}.bh-reasons p{font-size:12px;line-height:1.95;color:#66758e;margin:0}
.bh-product{background:linear-gradient(#fff,#f2f6fb);padding:14px 0 95px}.bh-product-layout{display:grid;grid-template-columns:340px minmax(0,1fr);gap:60px;align-items:center}.bh-product-steps{list-style:none;padding:0;margin:26px 0;display:grid;gap:19px}.bh-product-steps li{display:flex;gap:16px;font-size:12px;line-height:1.8;color:#66758e}.bh-product-steps li>b{font-size:12px;color:#0066ff;line-height:1.9}.bh-product-steps strong{display:block;color:#253d5c;font-weight:600;font-size:13px}.bh-product-visual{border:1px solid #e1e8f3;border-radius:12px;background:#fff;box-shadow:0 26px 60px #183d6620;transform:perspective(1500px) rotateY(-7deg) rotateX(2deg);transform-origin:center;min-width:0;overflow:hidden}.bh-window-top{display:flex;align-items:center;gap:6px;height:37px;padding:0 14px;border-bottom:1px solid #e6ebf3;background:#fafcfe}.bh-window-top>span{width:5px;height:5px;background:#c3cfdf;border-radius:50%}.bh-window-top small{font-size:9px;color:#718099;margin-left:12px}.bh-product-visual>img{display:block;width:100%;height:auto;aspect-ratio:1.35;object-fit:cover;object-position:center}.bh-product-caption{padding:22px 24px;display:grid;gap:7px}.bh-product-caption span{font-size:10px;color:#75839b}.bh-product-caption b{font:500 17px/1.5 var(--bh-serif)}
.bh-exam{position:relative;isolation:isolate;min-height:550px;background:#0a2340;color:#fff;padding:78px 0 55px}.bh-exam>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 48%;z-index:-2;opacity:.45}.bh-exam:before{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#081d38f2,#0a244bc9 50%,#0a244b25)}.bh-exam .bh-eyebrow{color:#9abffc}.bh-exam h2{font:500 40px/1.5 var(--bh-serif);margin:16px 0;color:#fff}.bh-exam p{font-size:14px;line-height:1.9;color:#c8d7eb;margin:0}.bh-papers{display:flex;margin:32px 0 20px;gap:45px}.bh-papers article{display:grid;gap:8px;min-width:240px}.bh-papers article+article{border-left:1px solid #6983a066;padding-left:45px}.bh-papers small{font-size:10px;color:#9fb7d9}.bh-papers h3{font-size:26px;font-weight:550;margin:0;color:#fff}.bh-papers b{font-size:13px;font-weight:500;color:#fff}.bh-papers span{font-size:11px;color:#a8bfdd}.bh-exam .bh-exam-note{font-size:11px;color:#97aecf}.bh-exam-bottom{display:flex;align-items:center;gap:35px;margin-top:28px}.bh-exam-bottom .bh-button{border-color:#8eacd1;background:transparent;color:#e1edff;font-size:12px;min-height:40px}.bh-source{display:inline-flex;align-items:center;gap:12px;font-size:12px!important;font-family:-apple-system,BlinkMacSystemFont,'PingFang SC',sans-serif!important;line-height:1.7;color:#0066ff!important}.bh-exam .bh-source{color:#b3cdf4!important}
.bh-syllabus{display:grid;grid-template-columns:280px minmax(0,1fr);gap:75px;padding:100px 0}.bh-syllabus>.bh-heading+p{margin:0}.bh-syllabus>div:first-child>.bh-source{margin-top:25px}.bh-subject-list article{display:flex;align-items:center;gap:23px;padding:23px 0;border-bottom:1px solid #e3eaf4}.bh-subject-list article:first-child{padding-top:0}.bh-subject-number{flex:0 0 38px;color:#0066ff;font:23px/1 var(--bh-serif)}.bh-subject-list article>div{flex:1;min-width:0}.bh-subject-list small{font-size:11px;color:#7d89a0}.bh-subject-list h3{font-size:17px;line-height:1.5;font-weight:600;margin:4px 0 7px}.bh-subject-list p{font-size:11px;color:#7c889d;line-height:1.8;margin:0}.bh-subject-list button{flex-shrink:0;min-height:44px;padding:0;background:none;border:0;color:#0066ff;font-size:12px}.bh-subject-list button span{margin-left:12px}
.bh-regions{padding:77px 0;background:#edf4ff}.bh-region-layout{display:grid;grid-template-columns:360px minmax(0,1fr);gap:100px}.bh-select-label{display:block;color:#617492;font-size:11px;margin:25px 0 8px}#homeExamProvince{height:46px;width:240px;border:1px solid #d1def3;border-radius:5px;background:#fff;padding:0 14px;color:#10203f;font:14px -apple-system,BlinkMacSystemFont,'PingFang SC',sans-serif}.bh-small{font-size:11px!important;line-height:1.85!important;color:#7a89a2!important;margin-top:16px}.bh-region-detail{padding:32px 36px;background:#ffffffc9;border-top:2px solid #0066ff;align-self:start}.bh-region-head>span{font-size:10px;color:#6381ad;letter-spacing:.1em}.bh-region-head h3{font:600 26px/1.5 var(--bh-serif);margin:10px 0 14px}.bh-region-detail p{font-size:13px;color:#5b6e8c;line-height:1.9}.bh-region-detail dl{display:grid;gap:12px;margin:25px 0}.bh-region-detail dl>div{display:grid;grid-template-columns:66px 1fr;gap:15px;font-size:12px;line-height:1.85}.bh-region-detail dt{color:#29446a}.bh-region-detail dd{margin:0;color:#687d9c}.bh-region-actions{display:flex;align-items:center;flex-wrap:wrap;gap:20px;margin-top:24px}.bh-region-actions .bh-button{min-height:42px;font-size:12px;padding:10px 15px;background:#fff}
.bh-dates{display:grid;grid-template-columns:1fr 1.4fr;gap:28px 60px;padding:75px 0;border-bottom:1px solid #e3eaf4}.bh-dates h2{font:600 27px/1.6 var(--bh-serif);margin:12px 0 0}.bh-date-list{display:flex;justify-content:space-between}.bh-date-list>span{display:grid;gap:5px}.bh-date-list small{font-size:11px;color:#8391a8}.bh-date-list b{font-size:32px;font-weight:500;color:#133259;letter-spacing:-.03em}.bh-date-list em{font-size:10px;color:#75869f;font-style:normal}.bh-dates>.bh-source{grid-column:2}
.bh-faq{display:grid;grid-template-columns:280px minmax(0,1fr);gap:75px;padding:80px 0}.bh-faq details{border-bottom:1px solid #e3eaf4;padding:18px 0}.bh-faq details:first-child{border-top:1px solid #e3eaf4}.bh-faq summary{display:flex;justify-content:space-between;align-items:center;gap:16px;list-style:none;cursor:pointer;font-size:14px;line-height:1.7;padding:3px 0}.bh-faq summary::-webkit-details-marker{display:none}.bh-faq summary>span{color:#8191aa;font-size:17px}.bh-faq details[open] summary>span{transform:rotate(45deg)}.bh-faq details>p{font-size:12px;line-height:2;color:#6a7b94;padding-right:40px;margin:13px 0 3px}
.bh-finish{text-align:center;background:linear-gradient(#fff,#edf4ff);padding:45px 24px 75px}.bh-finish h2{font:600 48px/1.4 var(--bh-serif);margin:18px 0 28px}.bh-finish .bh-button{min-width:200px}.bh-finish p{font-size:12px;color:#7b8ca6;margin-top:18px}.bh-footer{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:25px;padding:30px 0 20px}.bh-footer>div{display:flex;align-items:center;gap:10px}.bh-footer img{width:30px;height:30px;object-fit:contain}.bh-footer b{font-size:14px}.bh-footer>div>span{font-size:10px;color:#8b9ab0;margin-left:12px}.bh-footer nav{display:flex;gap:24px;font-size:11px;color:#6b7b94}.bh-footer button{padding:0;border:0;background:transparent;color:inherit;font-size:inherit}.bh-footer>small{flex-basis:100%;font-size:10px;color:#8d9ab0}.bh-page [id]{scroll-margin-top:100px}
.lc-page{max-width:1140px;margin:0 auto;padding:20px 12px 50px}.lc-breadcrumb{display:flex;gap:24px;font-size:12px;color:#7c8ba3;padding-bottom:30px}.lc-breadcrumb button{border:0;padding:0;color:#0066ff;background:transparent;font-size:12px}.lc-page>header{display:flex;align-items:center;justify-content:space-between;gap:28px;margin-bottom:28px}.lc-page h1{font-size:34px;letter-spacing:-.03em;line-height:1.4;margin:9px 0 12px}.lc-page>header p{font-size:14px;color:#6d7e99;margin:0}.lc-section-title{display:flex;align-items:center;justify-content:space-between;margin:35px 0 18px}.lc-section-title h2{font-size:20px}.lc-section-title>span{color:#8190a5;font-size:12px}.lc-subjects>button{display:flex;align-items:center;gap:22px;text-align:left;background:#fff;color:#10203f;border:1px solid #e3eaf4;border-bottom:0;width:100%;padding:22px 25px}.lc-subjects>button:last-child{border-bottom:1px solid #e3eaf4}.lc-number{font-size:25px;color:#0066ff;min-width:45px}.lc-subjects>button>span:nth-child(2){flex:1;min-width:0}.lc-subjects small{display:block;color:#7d8da8;font-size:11px;margin-bottom:4px}.lc-subjects b{font-size:17px}.lc-subjects p{font-size:12px;color:#7b8ba3;line-height:1.7;margin:6px 0 0}.lc-progress{min-width:160px}.lc-progress b{color:#0066ff;font-size:20px}.lc-progress small{margin:5px 0}.lc-progress progress{width:100%;height:4px;accent-color:#0066ff}.lc-subjects>button>i{font-size:12px;color:#0066ff;font-style:normal;white-space:nowrap;margin-left:15px}.lc-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:25px}.lc-tools>button{display:flex;gap:16px;align-items:center;text-align:left;padding:20px;background:#fff;color:#0066ff;border:1px solid #e3eaf4;border-radius:7px}.lc-tools span{flex:1}.lc-tools b{display:block;font-size:14px;color:#253f62;margin-bottom:6px}.lc-tools small{font-size:11px;color:#8090a7}
@media(hover:hover){.bh-button:hover{background:#0055db;border-color:#0055db}.bh-button-secondary:hover{background:#edf4ff;border-color:#0066ff}.bh-page a:hover{color:#0066ff}.bh-subject-list button:hover{text-decoration:underline}.lc-subjects>button:hover,.lc-tools>button:hover{background:#f9fbff;border-color:#bdd4fb}}
@media(max-width:1200px) and (min-width:769px){.bh-logo>span{display:none}.bh-nav-links{gap:19px}.bh-topbar{gap:20px;padding-left:24px}.bh-container,.bh-hero-copy{width:calc(100% - 80px)}.bh-hero{min-height:570px}.bh-why{grid-template-columns:190px 1fr;gap:30px}.bh-reasons{gap:18px}.bh-why .bh-heading h2{font-size:32px}.bh-product-layout{grid-template-columns:300px 1fr;gap:30px}.bh-syllabus,.bh-faq{grid-template-columns:240px 1fr;gap:45px}.bh-region-layout{grid-template-columns:300px 1fr;gap:50px}.bh-region-detail{padding:28px}.bh-reasons h3{font-size:17px}.lc-progress{min-width:100px}.lc-subjects>button>i{display:none}.lc-tools{grid-template-columns:1fr}.bh-ribbon{padding-left:35px;padding-right:35px}}
@media(max-width:980px) and (min-width:769px){.bh-nav-links{gap:15px;font-size:11px}.bh-nav-links a:first-child{display:none}.bh-account-space{flex-basis:145px}.bh-logo b{font-size:17px}.bh-logo img{width:34px;height:34px}.bh-container,.bh-hero-copy{width:calc(100% - 56px)}.bh-hero{min-height:520px}.bh-hero h1{font-size:49px}.bh-hero-copy>p{font-size:18px}.bh-why{grid-template-columns:1fr;padding:65px 0}.bh-why .bh-heading h2 br{display:none}.bh-why .bh-heading:after{display:none}.bh-reasons img{aspect-ratio:1/1}.bh-product-layout{grid-template-columns:1fr}.bh-product-layout>div:first-child{display:grid;grid-template-columns:1fr 1fr;gap:20px}.bh-product-layout .bh-button{justify-self:start}.bh-product-visual{transform:none;margin-top:20px}.bh-product-visual>img{aspect-ratio:1.65}.bh-syllabus,.bh-faq{grid-template-columns:1fr;gap:30px}.bh-heading h2 br{display:none}.bh-region-layout{grid-template-columns:1fr 1.3fr;gap:30px}.bh-region-detail{padding:23px}.bh-region-detail dl>div{grid-template-columns:1fr;gap:0}.bh-region-layout .bh-heading h2{font-size:27px}.bh-syllabus .bh-heading p{max-width:650px}.bh-dates{grid-template-columns:1fr}.bh-dates>.bh-source{grid-column:1}.lc-page>header{align-items:flex-start}.lc-page>header>.bh-button{font-size:12px}.lc-page h1{font-size:28px}}
@media(prefers-reduced-motion:reduce){.bh-product-visual{transform:none}}