:root{--hk-paper:#fff;--hk-ink:#20333b;--hk-rust:#17584b;--hk-sage:#146f78;--hk-muted:#5c6d70;--hk-rule:#d8e3de;--hk-soft:#f3f7f5;--hk-white:#fff;--hk-serif:"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic",Meiryo,"Noto Sans CJK JP",sans-serif;--hk-sans:var(--hk-serif)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:25px}body{margin:0;background:var(--hk-paper);color:var(--hk-ink);font:16px/1.85 var(--hk-sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none;overflow-wrap:anywhere}a:hover{color:var(--hk-sage)}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #146f78;outline-offset:4px}button,input,textarea,select{font:inherit;color:inherit}button{cursor:pointer}button:disabled{cursor:wait}img{display:block;max-width:100%;object-fit:cover}h1,h2,h3,h4,p,figure{margin:0}h1,h2,h3,h4{line-height:1.6;overflow-wrap:anywhere}p{overflow-wrap:anywhere}ul,ol{margin:0;padding:0;list-style:none}svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.7}main{min-height:45vh}.hk-wrap{width:min(1240px,calc(100% - 80px));margin-inline:auto}.hk-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;padding:0;border:0;margin:-1px}.hk-skip{position:fixed;top:10px;left:10px;z-index:120;background:var(--hk-rust);color:#fff;padding:12px 20px;transform:translateY(-180%)}.hk-skip:focus{transform:none}.hk-eyebrow{display:block;font-size:12px;line-height:1.6;font-weight:700;letter-spacing:.1em;color:var(--hk-rust)}.hk-inline-link{display:inline-flex;align-items:center;justify-content:space-between;gap:20px;font-size:14px;font-weight:600;line-height:1.8;color:var(--hk-rust)}.hk-inline-link>span{font-size:19px;font-weight:400}.hk-empty{padding:26px;color:var(--hk-muted);font-size:16px;background:var(--hk-soft);border:1px solid var(--hk-rule);line-height:1.9;border-radius:5px}.hk-empty .hk-inline-link{display:table;margin-top:20px}.hk-ad{margin-block:24px;max-width:100%;overflow:hidden}.hk-ad img,.admanager-slot img{height:auto;max-width:100%}.odaka-ad,.admanager-slot{max-width:100%;overflow:hidden}
/* The EJIAN masthead and practical health navigation. */
.ej-topbar{background:#f0f5f2;color:#405c53;font-size:12px;line-height:1.6}.ej-topbar>.hk-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:7px}.hk-header{background:#fff}.hk-masthead{display:flex;align-items:center;gap:24px;min-height:105px}.hk-brand{display:inline-flex;align-items:center;gap:11px;flex:none}.hk-brand>img{width:52px;height:52px;object-fit:contain}.hk-brand>span{font-family:Arial,"Helvetica Neue",var(--hk-sans);font-size:36px;font-weight:700;line-height:1;letter-spacing:.055em;color:var(--hk-rust)}.hk-brand small{display:block;margin-top:9px;font-family:var(--hk-sans);font-size:12px;font-weight:400;letter-spacing:.03em;color:var(--hk-muted)}.hk-tagline{font-size:13px;line-height:1.8;max-width:190px;color:var(--hk-muted);padding-left:24px;border-left:1px solid var(--hk-rule)}.hk-header-tools{display:flex;align-items:center;gap:20px;margin-left:auto}.hk-text-link{display:none;align-items:center;gap:7px;font-size:13px}.hk-menu-toggle{height:44px;border:1px solid #cddbd4;background:white;display:flex;align-items:center;justify-content:center;gap:9px;font-size:13px;padding:0 13px;border-radius:4px}.hk-menu-lines{width:16px;height:12px;position:relative;border-block:1px solid currentColor}.hk-menu-lines:after{content:"";position:absolute;width:16px;border-top:1px solid currentColor;top:5px;left:0}.hk-nav-line{background:var(--hk-rust);color:#fff}.hk-main-nav{display:flex;gap:0;align-items:stretch;overflow-x:auto;white-space:nowrap;scrollbar-width:thin}.hk-main-nav>a{display:flex;align-items:center;justify-content:center;min-height:51px;flex:1 0 auto;padding:10px 16px;font-size:14px;font-weight:500;border-bottom:4px solid transparent;border-top:4px solid transparent}.hk-main-nav>a:hover{background:#24695b;color:#fff}.hk-main-nav>a[aria-current]{background:#0e493d;border-bottom-color:#b9d6c2}.hk-search-form{display:flex;max-width:100%;border:1px solid #c8d8d0;background:#fff;border-radius:4px;overflow:hidden}.hk-search-form input{min-width:0;flex:1;width:100%;border:0;background:transparent;padding:12px 15px;outline-offset:-4px;font-size:16px}.hk-search-form button{border:0;background:var(--hk-rust);color:white;font-size:14px;padding:12px 20px;min-height:46px;white-space:nowrap}.ej-header-search{width:330px;background:#f8faf9}.ej-header-search input{font-size:14px;padding-block:11px}.ej-header-search button{display:grid;place-items:center;padding-inline:16px}
/* Accessible navigation drawer. */
.hk-drawer[hidden]{display:none}.hk-drawer{position:fixed;inset:0;z-index:100}.hk-drawer-scrim{position:absolute;inset:0;background:#14292180;border:0}.hk-drawer-panel{position:absolute;inset:0 0 0 auto;width:min(440px,100%);padding:30px;overflow-y:auto;background:#fff;box-shadow:-15px 0 50px #14292120}.hk-drawer-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px;font-size:25px;font-weight:600;color:var(--hk-rust)}.hk-drawer-close{border:1px solid var(--hk-rule);background:white;width:44px;height:44px;font-size:27px;font-weight:400;line-height:1}.hk-drawer-panel nav{margin-top:24px;display:grid;grid-template-columns:1fr}.hk-drawer-panel nav>a{display:flex;justify-content:space-between;align-items:center;gap:15px;border-bottom:1px solid var(--hk-rule);padding:14px 2px;font-size:15px;min-height:48px}.hk-drawer-panel>p{font-size:13px;line-height:2;color:var(--hk-muted);margin-top:28px}.hk-drawer-open{overflow:hidden}
/* A compact, useful portal front page. */
.ej-home-intro{display:grid;grid-template-columns:1.1fr 1fr;gap:36px;align-items:center;margin-block:28px 25px}.ej-home-intro h1{font-size:29px;font-weight:600;letter-spacing:.015em;line-height:1.65;margin-top:6px}.ej-home-intro>p{font-size:14px;line-height:1.9;color:var(--hk-muted)}.ej-top-grid{display:grid;grid-template-columns:minmax(0,1.9fr) minmax(0,1fr);gap:27px}.hk-feature{display:grid;grid-template-columns:1.08fr .92fr;background:#edf4ef;border:1px solid #d7e5dc;border-radius:6px;overflow:hidden;min-width:0}.hk-feature-copy{padding:25px 25px 28px;min-width:0}.ej-feature-label{font-size:13px;font-weight:600;color:var(--hk-rust);padding-bottom:15px;margin-bottom:14px;border-bottom:1px solid #cbddd0}.hk-meta{display:flex;flex-wrap:wrap;gap:5px 14px;font-size:12px;line-height:1.7;color:var(--hk-rust)}.hk-meta a{font-weight:600}.hk-meta time,.hk-meta>span{color:var(--hk-muted)}.hk-feature-copy h3{font-size:24px;font-weight:600;line-height:1.7;margin-top:11px}.hk-feature-copy>p:not(.ej-feature-label){font-size:14px;line-height:1.95;color:#456056;margin-top:14px}.hk-feature-copy .hk-inline-link{margin-top:19px}.hk-feature-photo{min-width:0;display:block;min-height:100%}.hk-feature-photo img{width:100%;height:100%;min-height:330px;object-position:center}.hk-highlights{min-width:0}.ej-mini-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;padding-bottom:10px;border-bottom:2px solid var(--hk-rust)}.ej-mini-heading h2{font-size:17px;font-weight:600}.ej-mini-heading>span{font-size:12px;color:var(--hk-muted)}.hk-highlight{display:grid;grid-template-columns:94px minmax(0,1fr);gap:15px;border-bottom:1px solid var(--hk-rule);padding-block:15px;align-items:center}.hk-highlight-photo{overflow:hidden;border-radius:3px}.hk-highlight-photo img{width:100%;height:80px}.hk-highlight h3{font-size:15px;font-weight:600;line-height:1.85;margin-top:4px}.hk-highlight h3 a:hover{text-decoration:underline;text-underline-offset:4px}.hk-section-top{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:20px;border-bottom:2px solid var(--hk-rust);padding-bottom:13px}.hk-section-top h2{font-size:22px;font-weight:600;letter-spacing:.02em}.hk-section-top>span,.hk-section-top>p{font-size:13px;color:var(--hk-muted)}.hk-directory{margin-top:35px;padding:25px;background:#f4f7f5;border:1px solid var(--hk-rule);border-radius:6px}.hk-directory .hk-section-top{border:0;padding:0;margin-bottom:17px}.hk-directory .hk-section-top h2{font-size:19px}.hk-directory-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:11px}.hk-directory-grid>a{display:flex;align-items:center;gap:12px;padding:16px 13px;background:#fff;border:1px solid #d7e2dc;border-radius:4px;min-width:0}.ej-topic-symbol{display:grid;place-items:center;background:#eaf2ee;color:var(--hk-rust);font-size:13px;line-height:1;border-radius:50%;height:36px;width:36px;flex:none;font-weight:600}.hk-directory-grid>a>span:nth-child(2){min-width:0}.hk-directory-grid strong{display:block;font-size:15px;font-weight:600;line-height:1.6}.hk-directory-grid small{display:block;margin-top:4px;font-size:12px;color:var(--hk-muted);line-height:1.65}.hk-arrow{font-size:22px;line-height:1;color:var(--hk-rust);margin-left:auto;flex:none}.hk-directory-grid>a:hover{border-color:#6a9b84;background:#fbfdfc}.hk-shelves{margin-top:40px}.hk-shelf-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px 23px}.hk-shelf{min-width:0;padding-bottom:4px}.hk-shelf>h3 a{display:flex;justify-content:space-between;gap:10px;align-items:center;font-size:17px;font-weight:600;padding:12px 0;border-bottom:1px solid #b3c9bc}.hk-shelf>h3 a>span{font-size:22px;font-weight:400;color:var(--hk-rust)}.hk-shelf-story{padding:14px 0;border-bottom:1px solid var(--hk-rule)}.hk-shelf-story:last-child{border:0}.hk-shelf-story h4{font-size:15px;font-weight:500;line-height:1.9}.hk-shelf-story:first-of-type h4{font-size:17px;font-weight:600;margin-top:13px}.hk-shelf-story p{font-size:14px;line-height:1.95;color:var(--hk-muted);margin-top:9px}.hk-shelf-photo{display:block;aspect-ratio:1.65;overflow:hidden;border-radius:4px}.hk-shelf-photo img{width:100%;height:100%}.ej-standards{display:grid;grid-template-columns:.9fr 1.3fr;gap:35px;padding:30px;margin-top:36px;background:#eaf3f2;border-radius:6px;border-top:3px solid var(--hk-sage)}.ej-standards h2{font-size:23px;font-weight:600;line-height:1.75;margin-top:8px}.ej-standards p{font-size:14px;line-height:1.95;color:var(--hk-muted);margin-top:12px}.ej-service-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-content:center}.ej-service-grid a{padding:16px;background:#fff;border:1px solid #d2e2db;border-radius:4px;min-width:0}.ej-service-grid strong{font-size:15px;font-weight:600;display:flex;justify-content:space-between;align-items:center;gap:12px}.ej-service-grid strong span{color:var(--hk-rust)}.ej-service-grid small{display:block;font-size:12px;color:var(--hk-muted);margin-top:7px;line-height:1.8}
/* Shared list and reading layouts. */
.hk-content-grid{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:48px;margin-top:30px;align-items:start}.hk-content-grid>section,.hk-detail,.hk-static-page{min-width:0}.hk-home-latest{margin-top:45px}.hk-story-row{display:grid;grid-template-columns:176px minmax(0,1fr);gap:23px;padding:23px 0;border-bottom:1px solid var(--hk-rule);min-width:0}.hk-story-photo{display:block;aspect-ratio:1.4;overflow:hidden;border-radius:4px}.hk-story-photo img{height:100%;width:100%;transition:transform .25s ease}.hk-story-row:hover .hk-story-photo img{transform:scale(1.025)}.hk-story-copy{min-width:0}.hk-story-copy h3{font-size:20px;font-weight:600;line-height:1.75;margin-top:7px}.hk-story-copy>p{font-size:14px;line-height:1.95;color:var(--hk-muted);margin-top:9px}.hk-row-bottom{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-top:12px}.hk-reading{font-size:12px;color:var(--hk-muted);white-space:nowrap}.hk-tags{display:flex;flex-wrap:wrap;gap:6px 8px}.hk-tags a{display:inline-block;border:1px solid #d7e2dd;border-radius:3px;padding:3px 8px;font-size:12px;line-height:1.7;color:#3a6357;background:#f7faf8}.hk-tags a:hover,.hk-tags a[aria-current]{background:var(--hk-rust);border-color:var(--hk-rust);color:#fff}.hk-tags-large a{font-size:13px;padding:6px 10px}.hk-sidebar{min-width:0;display:flex;flex-direction:column;gap:30px}.hk-sidebar>section{padding:20px;background:#fff;border:1px solid var(--hk-rule);border-radius:4px}.hk-sidebar h2{font-size:18px;font-weight:600;line-height:1.7;margin-top:7px;margin-bottom:17px}.hk-recommend ul{display:flex;flex-direction:column}.hk-recommend li{display:flex;gap:12px;align-items:flex-start;border-top:1px solid var(--hk-rule);padding-block:16px}.hk-recommend li:first-child{border-top:0;padding-top:1px}.hk-recommend li:last-child{padding-bottom:0}.hk-pick-number{color:var(--hk-rust);font-size:23px;line-height:1.4;flex:none}.hk-recommend h3{font-size:14px;font-weight:500;line-height:1.9;margin-bottom:5px}.hk-sidebar .hk-about-note{background:#f0f6f2;border-color:#c9ddd0;padding:25px}.hk-about-note>img{width:46px;height:46px;object-fit:contain;margin-bottom:15px}.hk-about-note h2{font-size:23px;line-height:1.8;margin-top:8px}.hk-about-note p{font-size:14px;line-height:2;color:var(--hk-muted)}.hk-about-note .hk-inline-link{margin-top:18px}.hk-rss-link{display:flex;justify-content:space-between;align-items:center;gap:15px;padding:19px 20px;border:1px solid var(--hk-rule);font-size:14px;background:#fbfcfb;border-radius:4px}.hk-rss-link small{display:block;font-size:12px;color:var(--hk-muted);margin-top:3px}.hk-breadcrumb{display:flex;flex-wrap:wrap;gap:8px 12px;padding-top:24px;font-size:12px;color:var(--hk-muted)}.hk-breadcrumb a{text-decoration:underline;text-underline-offset:3px}.hk-page-heading{padding-block:29px 28px;border-bottom:1px solid var(--hk-rule);max-width:940px}.hk-page-heading h1{font-size:31px;font-weight:600;line-height:1.7;margin-top:9px;letter-spacing:.015em}.hk-page-heading>p{font-size:16px;line-height:1.95;color:var(--hk-muted);margin-top:15px;max-width:800px}.hk-list-heading{display:flex;justify-content:space-between;align-items:center;gap:15px;padding-bottom:16px;border-bottom:2px solid var(--hk-rust)}.hk-list-heading h2{font-size:19px;font-weight:600}.hk-list-heading>span{font-size:13px;color:var(--hk-muted)}.hk-pagination{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:center;margin:30px 0 0}.hk-pagination>a,.hk-pagination>span{min-width:42px;height:43px;display:grid;place-items:center;padding:5px 12px;border:1px solid #ceddd4;border-radius:3px;font-size:14px}.hk-pagination>span{background:var(--hk-rust);border-color:var(--hk-rust);color:#fff}.hk-pagination>a:hover{background:#eff6f2}.hk-pagination small{flex-basis:100%;text-align:center;font-size:12px;color:var(--hk-muted);margin-top:6px}.hk-category-label{display:inline-block;color:var(--hk-rust);font-size:14px;font-weight:600;background:#eef5f0;border:1px solid #cfdfd4;padding:5px 12px;border-radius:3px}.ej-article-type{font-size:12px;color:var(--hk-muted);margin-bottom:14px}.hk-article-heading{padding-top:27px}.hk-article-heading h1{font-size:33px;font-weight:600;line-height:1.75;letter-spacing:.02em;margin-top:18px}.hk-article-deck{font-size:17px;line-height:1.95;margin-top:17px;color:var(--hk-muted)}.hk-article-meta{display:flex;flex-wrap:wrap;gap:8px 19px;align-items:center;font-size:12px;color:var(--hk-muted);margin-block:21px 17px}.hk-article-meta>span:first-child{color:var(--hk-ink)}.hk-article-cover{margin-top:27px}.hk-article-cover>img{width:100%;height:auto;max-height:520px;aspect-ratio:1.65;border-radius:5px}.hk-article-cover figcaption{font-size:12px;color:var(--hk-muted);line-height:1.85;margin-top:9px}.hk-article-cover figcaption>span{display:block}.hk-photo-credit a{text-decoration:underline;text-underline-offset:3px}.hk-article-body{font-size:17.5px;line-height:2.05;letter-spacing:.02em;overflow-wrap:anywhere;margin-top:28px}.hk-article-body p{margin-bottom:1.5em}.hk-article-body h2{font-size:25px;font-weight:600;line-height:1.75;margin:42px 0 23px;padding:2px 0 13px;border-bottom:2px solid #92b7a2;scroll-margin-top:25px}.hk-article-body h3{font-size:21px;font-weight:600;margin:31px 0 18px;padding-left:14px;border-left:3px solid var(--hk-sage);scroll-margin-top:25px}.hk-article-body h4{font-size:18px;font-weight:600;margin-block:23px 14px}.hk-article-body ul,.hk-article-body ol{padding-left:1.6em;list-style:disc;margin:20px 0 26px}.hk-article-body ol{list-style:decimal}.hk-article-body li{padding-left:5px;margin-block:8px}.hk-article-body a{color:var(--hk-rust);text-decoration:underline;text-underline-offset:4px}.hk-article-body strong{font-weight:600}.hk-article-body blockquote{border:1px solid #caddd3;border-left:3px solid var(--hk-rust);background:#f4f8f5;margin:26px 0;padding:20px 25px;color:#395f50;border-radius:3px}.hk-article-body blockquote p:last-child{margin-bottom:0}.hk-article-body img{max-width:100%;height:auto;margin-block:25px;border-radius:4px}.hk-article-body table{display:block;overflow-x:auto;max-width:100%;border-collapse:collapse;font-size:16px;margin-block:25px;line-height:1.9;scrollbar-width:thin}.hk-article-body td,.hk-article-body th{padding:12px 15px;border:1px solid #ceddd5;min-width:110px;vertical-align:top}.hk-article-body th{background:#edf4f0;font-weight:600;color:#285846}.hk-article-body caption{display:block;text-align:left;font-size:14px;padding-bottom:9px;font-weight:500;color:var(--hk-muted)}.hk-article-body tr:nth-child(even) td{background:#f7faf8}.hk-article-body pre{padding:20px;background:var(--hk-soft);overflow:auto;font-size:14px;line-height:1.8;max-width:100%;border-radius:4px}.hk-article-body hr{border:0;border-top:1px solid var(--hk-rule);margin-block:30px}.hk-source-note{border:1px solid #caddd2;border-radius:4px;background:#f3f8f5;padding:25px 27px;margin-top:36px}.hk-source-note h2{font-size:21px;font-weight:600;margin:7px 0 12px}.hk-source-note>a{font-size:15px;text-decoration:underline;text-underline-offset:4px;line-height:2;color:var(--hk-rust)}.hk-source-note dl{margin:16px 0 0;display:flex;gap:14px 25px;flex-wrap:wrap;color:var(--hk-muted);font-size:12px}.hk-source-note dl>div{display:flex;gap:12px;flex-wrap:wrap}.hk-source-note dt,.hk-source-note dd{margin:0}.hk-source-note>p{font-size:14px;color:var(--hk-muted);line-height:1.95;margin-top:15px}.hk-share-row{display:flex;align-items:center;gap:20px;justify-content:space-between;margin-top:30px;padding-block:23px;border-block:1px solid var(--hk-rule);font-size:14px}.hk-copy-link{background:#fff;border:1px solid #bccfc4;border-radius:4px;padding:11px 16px;font-size:13px;min-height:44px}.hk-copy-link:hover{background:#eff6f2}.hk-neighbours{display:grid;grid-template-columns:1fr 1fr;gap:24px;padding-block:26px;border-bottom:1px solid var(--hk-rule)}.hk-neighbours a{min-width:0}.hk-neighbours small{display:block;font-size:12px;color:var(--hk-muted);margin-bottom:9px}.hk-neighbours strong{display:block;font-size:15px;font-weight:500;line-height:1.9}.hk-related{margin-top:36px}.hk-toc{position:sticky;top:25px}.hk-toc nav{display:flex;flex-direction:column;gap:0;margin-top:15px;border-top:1px solid var(--hk-rule)}.hk-toc nav>a{font-size:13px;line-height:1.85;border-bottom:1px solid var(--hk-rule);padding:11px 0;color:var(--hk-muted)}.hk-toc nav>a[aria-current]{color:var(--hk-rust);font-weight:600}.hk-toc nav>a.hk-toc-sub{padding-left:12px;font-size:12px}.hk-reading-progress{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:22px;color:var(--hk-muted);font-size:12px}.hk-reading-progress>div{width:100%;background:#dce8e0;height:4px;border-radius:2px;overflow:hidden}.hk-reading-progress i{display:block;height:100%;width:0;background:var(--hk-rust)}.hk-mobile-toc{display:none}.hk-search-large{margin-top:23px;width:700px}.hk-topic-hash{color:var(--hk-sage);font-weight:400;margin-right:7px}.hk-page-heading .hk-tags{margin-top:22px}.hk-static-page .hk-article-body{margin-top:30px}.hk-static-page .hk-article-body h2{font-size:24px}.hk-page-nav{padding:25px;border:1px solid var(--hk-rule);background:#f7faf8;border-radius:4px}.hk-page-nav h2{font-size:20px;font-weight:600;margin-top:8px;margin-bottom:18px}.hk-page-nav nav{display:grid}.hk-page-nav nav>a{display:flex;gap:15px;justify-content:space-between;border-top:1px solid var(--hk-rule);padding:12px 0;min-height:46px;font-size:14px}.hk-page-nav nav>a[aria-current]{font-weight:600;color:var(--hk-rust)}.hk-page-nav>p{font-size:13px;line-height:2;color:var(--hk-muted);margin-top:23px}.hk-contact-email{font-size:15px;margin-top:25px;padding:18px 20px;background:var(--hk-soft);border:1px solid var(--hk-rule);border-radius:4px}.hk-contact-email a{color:var(--hk-rust);text-decoration:underline;word-break:break-word}.ej-contact-note{margin-top:25px;padding:20px;border-left:3px solid var(--hk-sage);background:#f0f7f6;font-size:14px}.ej-contact-note strong{font-weight:600}.ej-contact-note p{font-size:14px;color:var(--hk-muted);margin-top:8px;line-height:1.9}.hk-contact-page .contactform{padding:26px;border:1px solid var(--hk-rule);border-radius:5px;background:#fbfdfb;margin-top:25px;margin-bottom:20px;box-shadow:none}.hk-contact-page .contactform label{font-size:15px}.hk-contact-page .contactform input,.hk-contact-page .contactform textarea,.hk-contact-page .contactform select{font:16px/1.6 var(--hk-sans);border:1px solid #bccfc4;border-radius:4px;padding:11px 13px;max-width:100%;min-width:0;background:#fff;color:var(--hk-ink)}.hk-contact-page .contactform textarea{min-height:180px}.hk-contact-page .contactform button{background:var(--hk-rust);color:#fff;border:0;border-radius:4px;min-height:46px;padding:11px 23px;font:16px var(--hk-sans)}.hk-contact-page .contactform small,.hk-contact-page .contactform .cf-help{font-size:13px;color:var(--hk-muted);line-height:1.9}.hk-contact-privacy{font-size:13px;color:var(--hk-muted);line-height:1.95}.hk-contact-privacy a{text-decoration:underline;color:var(--hk-rust)}.hk-contact-result{margin-top:24px;padding:20px;border:1px solid #9bbda9;background:#f1f8f3;border-radius:4px;font-size:16px}.hk-contact-result.hk-error{border-color:#ceac96;background:#fcf5f0;color:#754225}.hk-notfound{padding-block:55px 65px;text-align:center}.hk-notfound .hk-eyebrow{margin-bottom:14px}.hk-error-number{font-size:100px;line-height:1.1;color:#8cb3a2;font-weight:400;letter-spacing:.03em}.hk-notfound h1{font-size:28px;font-weight:600;line-height:1.8;margin-top:24px}.hk-notfound p{font-size:16px;color:var(--hk-muted);line-height:2;margin-top:18px}.hk-notfound>div{display:flex;gap:17px;justify-content:center;flex-wrap:wrap;margin-top:26px}.hk-button{display:inline-flex;gap:26px;align-items:center;justify-content:space-between;background:var(--hk-rust);color:#fff;font-size:15px;min-height:46px;padding:12px 20px;border:1px solid var(--hk-rust);border-radius:4px}.hk-button:hover{color:#fff;background:#0e493d}.hk-button-outline{background:#fff;color:var(--hk-rust)}.hk-button-outline:hover{background:#edf5f0;color:var(--hk-rust)}
/* Calm site information and medical-information context. */
.hk-footer{margin-top:55px;background:#edf4ef;border-top:1px solid #c4d7ca;padding-block:34px 25px}.hk-footer-top{display:grid;grid-template-columns:1fr 1.4fr auto;gap:35px;align-items:start}.hk-footer-brand>span{font-size:32px}.hk-footer-brand>img{width:46px;height:46px}.hk-footer-brand small{font-size:12px}.hk-footer-top>div>p{font-size:13px;color:var(--hk-muted);margin-top:17px;line-height:1.9}.hk-footer-categories{display:grid;grid-template-columns:1fr 1fr;gap:11px 23px;font-size:13px;line-height:1.8}.hk-back-top{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:12px;color:var(--hk-rust)}.hk-back-top>span{width:35px;height:35px;display:grid;place-items:center;border:1px solid #afc8b9;border-radius:50%;font-size:18px}.ej-footer-note{margin-top:28px;padding:21px 0;border-block:1px solid #c6d9cd}.ej-footer-note strong{font-size:14px;font-weight:600}.ej-footer-note p{font-size:13px;line-height:1.95;color:#476154;margin-top:7px}.ej-footer-note a{color:var(--hk-rust);text-decoration:underline;display:inline-block;margin-left:12px}.hk-footer-bottom{margin-top:22px}.hk-footer-bottom nav{display:flex;flex-wrap:wrap;gap:9px 23px;font-size:12px;line-height:1.85}.hk-footer-bottom p{margin-top:23px;font-size:12px;color:var(--hk-muted)}
@media(max-width:1150px){.hk-wrap{width:calc(100% - 56px)}.hk-tagline{display:none}.hk-main-nav>a{font-size:13px;padding-inline:15px}.ej-home-intro h1{font-size:27px}.ej-top-grid{grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);gap:23px}.hk-feature{grid-template-columns:1fr}.hk-feature-photo{grid-row:1;min-height:0;aspect-ratio:2.4}.hk-feature-photo img{min-height:0}.hk-feature-copy{padding:23px}.hk-feature-copy h3{font-size:23px}.ej-feature-label{padding-bottom:11px;margin-bottom:12px}.hk-directory-grid>a{padding:13px 10px;gap:9px}.ej-topic-symbol{width:30px;height:30px;font-size:12px}.hk-directory-grid strong{font-size:14px}.hk-directory-grid small{font-size:12px}.hk-content-grid{grid-template-columns:minmax(0,1fr) 265px;gap:32px}.hk-shelf-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.hk-shelf>h3 a{font-size:16px}.hk-shelf-story:first-of-type h4{font-size:16px}.hk-story-row{grid-template-columns:145px minmax(0,1fr);gap:19px}.hk-story-copy h3{font-size:19px}.hk-footer-top{grid-template-columns:1fr 1fr auto;gap:25px}}
@media(max-width:900px){.hk-wrap{width:calc(100% - 44px)}.hk-masthead{min-height:96px}.hk-brand>span{font-size:33px}.ej-header-search{width:280px}.hk-header-tools{gap:13px}.ej-top-grid{grid-template-columns:minmax(0,1.35fr) minmax(0,1fr)}.hk-highlight{grid-template-columns:78px minmax(0,1fr);gap:11px}.hk-highlight-photo img{height:75px}.hk-highlight h3{font-size:14px}.ej-mini-heading{display:block}.ej-mini-heading>span{display:block;margin-top:4px}.hk-directory-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hk-directory-grid strong{font-size:15px}.hk-directory-grid>a{padding:14px}.hk-directory-grid small{font-size:12px}.hk-shelf-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:25px 23px}.hk-shelf>h3 a{font-size:18px}.hk-shelf-story:first-of-type h4{font-size:18px}.ej-standards{grid-template-columns:1fr;padding:25px;gap:24px}.ej-standards h2 br{display:none}.hk-content-grid{grid-template-columns:minmax(0,1fr) 240px;gap:28px}.hk-story-row{grid-template-columns:1fr;gap:16px}.hk-story-photo{aspect-ratio:2}.hk-story-copy h3{font-size:20px}.hk-sidebar>section{padding:18px}.hk-sidebar .hk-about-note{padding:20px}.hk-article-heading h1{font-size:29px}.hk-footer-top{grid-template-columns:1fr 1fr}.hk-back-top{grid-column:2;justify-self:end}.hk-footer-categories{grid-row:1 / span 2;grid-column:2}.hk-back-top{grid-row:2}.hk-page-heading h1{font-size:29px}}
@media(max-width:700px){.hk-wrap{width:calc(100% - 36px)}.ej-topbar>.hk-wrap{justify-content:center;padding-block:6px}.ej-topbar span:last-child{display:none}.hk-masthead{min-height:85px;gap:15px}.hk-brand{gap:9px}.hk-brand>img{width:42px;height:42px}.hk-brand>span{font-size:29px}.hk-brand small{font-size:10px;margin-top:8px;letter-spacing:0}.ej-header-search{display:none}.hk-text-link{display:flex;font-size:12px}.hk-text-link span{display:none}.hk-header-tools{gap:17px}.hk-menu-toggle{padding:0;width:42px;border:0;flex-direction:column;gap:4px;font-size:10px;line-height:1.2}.hk-main-nav{width:100%;padding-inline:18px}.hk-main-nav>a{font-size:13px;min-height:48px;padding-inline:15px}.hk-drawer-panel{padding:24px;width:min(410px,100%)}.ej-home-intro{display:block;margin-block:24px 22px}.ej-home-intro .hk-eyebrow{font-size:11px}.ej-home-intro h1{font-size:26px;line-height:1.7;margin-top:5px}.ej-home-intro>p{font-size:14px;line-height:1.95;margin-top:13px}.ej-top-grid{grid-template-columns:1fr;gap:25px}.hk-feature-photo{aspect-ratio:1.75}.hk-feature-copy{padding:22px}.hk-feature-copy h3{font-size:24px;margin-top:12px}.hk-feature-copy>p:not(.ej-feature-label){font-size:14px;line-height:1.95;margin-top:13px}.hk-highlight{grid-template-columns:95px minmax(0,1fr);gap:16px;padding-block:15px}.hk-highlight-photo img{height:79px}.hk-highlight h3{font-size:16px;line-height:1.8}.ej-mini-heading{display:flex;gap:15px}.ej-mini-heading>span{margin-top:0}.ej-mini-heading h2{font-size:18px}.hk-section-top{gap:15px;align-items:flex-end;margin-bottom:18px;padding-bottom:12px}.hk-section-top h2{font-size:21px}.hk-section-top>span,.hk-section-top>p{font-size:12px}.hk-directory{margin-top:29px;padding:20px 15px}.hk-directory .hk-section-top{display:block}.hk-directory .hk-section-top>span{display:block;margin-top:6px}.hk-directory-grid{gap:9px}.hk-directory-grid>a{padding:12px 10px;align-items:flex-start;gap:8px;position:relative}.ej-topic-symbol{width:25px;height:25px;font-size:11px;margin-top:1px}.hk-directory-grid strong{font-size:14px;line-height:1.65}.hk-directory-grid small{font-size:12px;line-height:1.65;margin-top:5px}.hk-directory-grid .hk-arrow{display:none}.hk-shelves{margin-top:31px}.hk-shelves>.hk-section-top{display:block}.hk-shelves>.hk-section-top>a{font-size:13px;margin-top:9px}.hk-shelf-grid{grid-template-columns:1fr;gap:18px}.hk-shelf{border:1px solid var(--hk-rule);padding:0 17px 7px;border-radius:5px}.hk-shelf>h3 a{font-size:18px;border-color:#c7d9ce;padding-block:13px}.hk-shelf-story:first-of-type{display:grid;grid-template-columns:113px minmax(0,1fr);gap:0 15px;align-items:start;padding-block:17px}.hk-shelf-story:first-of-type h4{font-size:16px;margin:0;line-height:1.8}.hk-shelf-story:first-of-type p{grid-column:1 / 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td{padding:10px 12px;min-width:105px}.hk-article-body caption{font-size:13px}.hk-source-note{padding:22px 18px;margin-top:31px}.hk-source-note h2{font-size:21px}.hk-source-note>a{font-size:14px}.hk-source-note dl{font-size:12px;gap:10px 22px}.hk-source-note>p{font-size:14px;line-height:1.95}.hk-share-row{align-items:flex-start;flex-direction:column;gap:14px;padding-block:22px;font-size:14px}.hk-copy-link{font-size:13px;padding-inline:16px}.hk-neighbours{gap:22px;padding-block:24px}.hk-neighbours strong{font-size:14px}.hk-neighbours small{font-size:12px}.hk-mobile-toc{display:block;margin-block:24px;padding:18px;background:#f3f8f5;border:1px solid #cadfd1;border-radius:4px}.hk-mobile-toc[hidden]{display:none}.hk-mobile-toc summary{font-size:15px;font-weight:600;color:var(--hk-rust);cursor:pointer}.hk-mobile-toc nav{display:flex;flex-direction:column;margin-top:13px}.hk-mobile-toc nav a{font-size:14px;line-height:1.9;padding:10px 0;border-top:1px solid var(--hk-rule);color:var(--hk-muted)}.hk-mobile-toc nav a.hk-toc-sub{padding-left:12px;font-size:13px}.hk-detail-grid .hk-toc{display:none}.hk-detail-grid .hk-sidebar{padding-top:0}.hk-page-nav{padding:22px}.hk-page-nav nav{grid-template-columns:1fr}.hk-page-nav nav a{font-size:14px}.hk-page-nav>p{font-size:13px}.hk-static-page .hk-article-body h2{font-size:22px}.hk-contact-page .contactform{padding:22px 18px;margin-block:24px}.hk-contact-email{font-size:14px;padding:17px}.ej-contact-note{padding:18px;font-size:14px}.ej-contact-note p{font-size:14px}.hk-contact-result{padding:18px;font-size:15px}.hk-contact-page .contactform input,.hk-contact-page .contactform textarea,.hk-contact-page .contactform select{font-size:16px}.hk-contact-privacy{font-size:13px}.hk-notfound{padding-block:40px 50px}.hk-error-number{font-size:85px}.hk-notfound h1{font-size:25px;line-height:1.8}.hk-notfound p{font-size:15px}.hk-notfound>div{gap:13px}.hk-button{font-size:14px;padding:12px 17px;gap:20px}.hk-footer{margin-top:40px;padding-block:28px 22px}.hk-footer-top{grid-template-columns:1fr;gap:24px;position:relative}.hk-footer-brand>span{font-size:30px}.hk-footer-brand>img{width:42px;height:42px}.hk-footer-brand small{font-size:12px}.hk-footer-top>div>p{font-size:13px;margin-top:15px}.hk-footer-categories{grid-column:auto;grid-row:auto;font-size:13px;gap:11px 20px;padding-top:3px}.hk-back-top{position:absolute;right:0;top:0;font-size:0;display:block}.hk-back-top>span{font-size:18px;width:34px;height:34px}.ej-footer-note{margin-top:25px;padding-block:21px}.ej-footer-note strong{font-size:14px}.ej-footer-note p{font-size:13px;line-height:1.95}.ej-footer-note a{margin-left:0;margin-top:8px;display:block}.hk-footer-bottom{margin-top:21px}.hk-footer-bottom nav{gap:10px 19px;font-size:12px}.hk-footer-bottom p{font-size:12px;margin-top:23px}}
@media(max-width:359px){.hk-wrap{width:calc(100% - 30px)}.hk-header-tools{gap:12px}.hk-brand>span{font-size:27px}.hk-brand small{font-size:9px}.hk-brand>img{width:37px;height:37px}.hk-masthead{min-height:80px}.ej-home-intro h1{font-size:24px}.hk-feature-copy{padding:19px}.hk-feature-copy h3{font-size:22px}.hk-highlight{grid-template-columns:83px minmax(0,1fr);gap:13px}.hk-highlight h3{font-size:15px}.hk-directory{padding:18px 11px}.hk-directory-grid>a{gap:7px;padding:11px 8px}.hk-directory-grid strong{font-size:13px}.ej-topic-symbol{width:22px;height:22px;font-size:10px}.hk-directory-grid small{font-size:12px}.hk-shelf-story:first-of-type{grid-template-columns:92px minmax(0,1fr);gap:0 13px}.hk-story-row{grid-template-columns:87px minmax(0,1fr);gap:13px}.hk-story-copy h3{font-size:16px}.hk-article-heading h1{font-size:25px}.hk-article-body{font-size:16px}.hk-article-body table{font-size:16px}.hk-footer-brand>span{font-size:27px}.hk-footer-brand>img{width:36px;height:36px}.hk-footer-brand small{font-size:12px}.hk-back-top>span{width:30px;height:30px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}