@charset "UTF-8";
:root{--ink:#153c46;--text:#303d3d;--orange:#ee955a;--gold:#deb46e;--paper:#f8f2e7;--mist:#dde9e6;--line:#d5dad1;--white:#fffdf8;--red:#ba6657;--serif:"Noto Serif SC","Songti SC",SimSun,serif;--sans:"Microsoft YaHei","PingFang SC",system-ui,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--text);font:16px/1.85 var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}a,button,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--red);outline-offset:5px}img{max-width:100%;height:auto;display:block}svg{max-width:100%}h1,h2,h3,h4,p,figure{margin:0}h1,h2,h3{color:var(--ink);line-height:1.45}h1,h2{font-family:var(--serif);font-weight:650}h1{font-size:clamp(28px,3.3vw,46px);letter-spacing:.015em}h2{font-size:clamp(24px,2.4vw,33px)}h3{font-size:20px}p+p{margin-top:17px}ul,ol{padding-left:1.5em}li+li{margin-top:8px}.wrap{width:min(1180px,calc(100% - 64px));margin:auto}.skip{position:absolute;top:-80px;left:20px;background:var(--ink);color:white;padding:10px 20px;z-index:100}.skip:focus{top:10px}.site-header{border-bottom:1px solid var(--line);background:var(--paper);position:relative;z-index:20}.header-inner{min-height:96px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{flex:0 0 auto}.brand img{width:199px;height:64px}.main-nav{display:flex;gap:27px;align-items:center}.main-nav a{font-size:14px;font-weight:600;position:relative;padding:32px 0;white-space:nowrap}.main-nav a:hover,.main-nav a[aria-current]{color:var(--red)}.main-nav a[aria-current]:after{content:"";position:absolute;bottom:19px;left:calc(50% - 3px);width:6px;height:6px;border-radius:50%;background:var(--orange)}.menu-button{display:none;border:1px solid var(--ink);background:none;border-radius:4px;color:var(--ink);padding:6px 14px}.eyebrow{display:flex;align-items:center;gap:12px;color:var(--red);font-size:11px;font-weight:700;letter-spacing:.17em;line-height:1.5;margin-bottom:18px}.eyebrow:before{content:"";height:1px;width:30px;background:var(--red)}.hero{padding:55px 0 42px}.hero-heading{max-width:980px;margin:auto;text-align:center}.hero-heading .eyebrow{justify-content:center}.hero-heading h1{max-width:940px;margin:auto}.hero-heading>p{max-width:820px;margin:23px auto 0;font-size:16px;color:#5c6966}.hero-stage{margin-top:35px;display:grid;grid-template-columns:.82fr 1.18fr;gap:40px;align-items:center}.hero-art{position:relative;border-radius:130px 8px 8px 8px;overflow:hidden;grid-column:2;grid-row:1;background:var(--ink)}.hero-art img{width:100%;aspect-ratio:4/3;object-fit:contain}.hero-art figcaption{position:absolute;bottom:18px;left:22px;right:22px;color:var(--paper);font-size:11px;letter-spacing:.12em;text-shadow:0 1px 8px #153c46}.hero-tools{grid-column:1;grid-row:1;padding:15px 0 15px 32px;border-left:1px solid var(--gold)}.hero-note{font:25px/1.6 var(--serif);color:var(--ink);margin-bottom:25px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:23px 0}.button{display:inline-flex;align-items:center;justify-content:center;gap:16px;padding:12px 21px;background:var(--ink);color:var(--paper);border:1px solid var(--ink);border-radius:3px;font-size:14px;font-weight:600;transition:background .2s}.button:hover{background:#25525c}.button.secondary{background:transparent;color:var(--ink)}.button.secondary:hover{background:var(--mist)}.small{font-size:13px;color:#687470}.quick-features{list-style:none;padding:0;margin:27px 0 0}.quick-features li{display:grid;grid-template-columns:31px 1fr;gap:13px;border-top:1px solid var(--line);padding:12px 0;margin:0}.icon{width:25px;height:25px;flex:0 0 25px;display:inline-block;vertical-align:middle}.quick-features strong{font-size:14px;color:var(--ink);display:block}.quick-features span{font-size:12px;color:#687470;display:block}.entry-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:0;display:grid;grid-template-columns:repeat(3,1fr)}.entry-strip a{display:flex;gap:18px;align-items:center;padding:22px 25px;border-right:1px solid var(--line)}.entry-strip a:first-child{padding-left:0}.entry-strip a:last-child{border:0}.entry-strip strong{display:block;font-size:16px;color:var(--ink)}.entry-strip small{display:block;font-size:12px;color:#687470}.entry-strip b{font:italic 22px var(--serif);color:var(--red)}.section{padding:65px 0;border-bottom:1px solid var(--line)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:32px;margin-bottom:28px}.section-head p{max-width:430px;font-size:14px;color:#687470}.section h2{margin-bottom:17px}.number{font-family:var(--sans);font-size:11px;letter-spacing:.16em;color:var(--red);display:block;margin-bottom:13px}.text-link{color:var(--ink);border-bottom:1px solid var(--gold);font-size:14px;font-weight:600;padding:3px 0;display:inline-block;margin-top:18px}.text-link:hover{color:var(--red)}.table-scroll{overflow-x:auto;margin:22px 0;max-width:100%;border-top:2px solid var(--ink)}table{width:100%;border-collapse:collapse;text-align:left;font-size:14px}th,td{padding:15px 17px;border-bottom:1px solid var(--line);vertical-align:top}th{font-weight:600;color:var(--ink);background:#e9eee8}td:first-child{font-weight:600;color:var(--ink)}td .icon{margin-right:10px;width:22px;height:22px}.split{display:grid;grid-template-columns:1fr 1.08fr;gap:48px;align-items:center}.split.reverse{grid-template-columns:1.08fr 1fr}.split.reverse .section-image{order:2}.section-image{background:var(--ink);border-radius:5px;overflow:hidden}.section-image img{width:100%;aspect-ratio:3/2;object-fit:contain}.section-image figcaption{background:var(--mist);font-size:12px;padding:9px 14px;color:#526c6b}.split p{font-size:15px}.split .table-scroll{margin:18px 0 0} .split th,.split td{padding:10px 12px;font-size:12px}.note{background:var(--mist);border-left:3px solid var(--gold);padding:18px 24px;margin:22px 0;font-size:14px}.plain-list{padding-left:1.2em;font-size:15px}.symptom-list{margin-top:20px}.symptom-list div{display:grid;grid-template-columns:125px 1fr;gap:17px;padding:11px 0;border-top:1px solid var(--line);font-size:14px}.symptom-list dt{font-weight:600;color:var(--ink)}.symptom-list dd{margin:0}.news-section{background:var(--mist);padding:66px 0}.news-section h2{margin-bottom:16px}.news-intro{max-width:700px;margin-bottom:32px}.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:40px 32px}.news-card{min-width:0;display:flex;flex-direction:column}.news-card>a{display:block}.news-card img{width:100%;aspect-ratio:3/2;object-fit:contain;background:var(--ink);border-radius:4px}.news-copy{padding:20px 3px 0;display:flex;flex:1;flex-direction:column;align-items:flex-start}.news-card .text-link{margin-top:auto;padding-top:18px}.tag{color:var(--red);font-size:11px;letter-spacing:.1em;display:inline-block;margin-bottom:11px}.news-card h3{font-family:var(--serif);font-size:23px;line-height:1.6;margin-bottom:12px}.news-card p{font-size:14px;line-height:1.9;color:#566562}.news-card .value{font-size:12px;margin-top:13px;color:#55716b}.privacy-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:30px}.privacy-item{border-top:1px solid var(--gold);padding-top:20px}.privacy-item h3{font-size:17px;margin:12px 0}.privacy-item p{font-size:14px}.faq-list{margin:25px 0 0;border-top:1px solid var(--ink)}details{border-bottom:1px solid var(--line);padding:17px 0}summary{cursor:pointer;color:var(--ink);font-size:16px;font-weight:600;padding-right:25px}details p{padding:14px 28px 6px 0;font-size:14px;max-width:950px}.directory{display:grid;grid-template-columns:1fr 1fr;gap:0 32px;margin-top:25px}.directory a{display:grid;grid-template-columns:32px 1fr 20px;gap:15px;align-items:center;border-top:1px solid var(--line);padding:18px 0}.directory strong{font-size:16px;color:var(--ink);display:block}.directory small{font-size:12px;display:block}.directory b{color:var(--red);font-size:12px}.guide-end{padding:43px 0 49px}.guide-end .wrap{display:flex;align-items:center;justify-content:space-between;gap:35px}.guide-end h2{font-size:25px;max-width:590px}.guide-end p{font-size:14px;margin-top:12px;max-width:650px}.guide-end nav{display:flex;flex-wrap:wrap;gap:10px 24px;min-width:260px;max-width:320px}.guide-end nav a{border-bottom:1px solid var(--gold);font-size:14px}.site-footer{background:var(--ink);color:#d8e4df}.footer-top{display:grid;grid-template-columns:1.1fr 2fr;gap:70px;padding:50px 0 37px}.footer-title{font:26px var(--serif);color:var(--paper)}.footer-title:before{content:"";display:inline-block;width:9px;height:13px;background:var(--orange);border-radius:5px;margin-right:13px;box-shadow:0 0 14px #ee955a66}.footer-lead p{font-size:12px;max-width:300px;margin-top:17px;color:#a9c3bd}.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}.footer-links h3{color:var(--gold);font-size:13px;margin-bottom:13px}.footer-links a{display:block;font-size:12px;line-height:2.4;color:#d8e4df}.footer-links a:hover{color:var(--orange)}.copyright{border-top:1px solid #3f5e62;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 0;font-size:10px;line-height:1.8}.registrations{display:flex;gap:18px;align-items:center}.copyright p,.registrations span{white-space:nowrap}.crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:12px;color:#6b7974;margin:28px 0 25px}.crumbs a:hover{color:var(--red)}.page-heading{padding:15px 0 34px;border-bottom:1px solid var(--line)}.page-heading h1{font-size:clamp(27px,3.2vw,41px);max-width:960px}.page-heading .lead{font-size:17px;max-width:880px;margin-top:22px;color:#66726c}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 225px;gap:58px;padding:40px 0 60px}.article-body{min-width:0}.article-body section{padding:6px 0 22px;scroll-margin-top:25px}.article-body h2{font-size:26px;margin:24px 0 17px}.article-body h3{font-size:19px;margin:22px 0 12px}.article-body p,.article-body li{font-size:15px;line-height:2.1}.article-body a:not(.button){color:var(--ink);border-bottom:1px solid var(--gold)}.article-body .section-image{float:right;width:45%;margin:9px 0 24px 28px}.article-body .section-image img{aspect-ratio:3/2}.article-body .section-image figcaption{font-size:11px;line-height:1.7}.article-body .clear{clear:both}.toc{border-top:2px solid var(--gold);padding-top:18px;align-self:start}.toc strong{font-family:var(--serif);font-size:18px;color:var(--ink)}.toc a{display:block;border-bottom:1px solid var(--line);font-size:12px;padding:13px 0;line-height:1.7}.toc .side-note{background:var(--mist);padding:17px;margin-top:24px;font-size:12px}.article-body .diagram{width:100%;height:auto;margin:22px 0;background:#e9eeea;border-radius:5px}.article-body .platform{border-top:1px solid var(--line);padding:22px 0}.platform h3{display:flex;gap:13px;align-items:center;margin-top:0}.platform .small{margin-top:12px}.checks{background:#ede8dd;padding:23px 28px;margin:26px 0}.checks h3{margin-top:0}.checks ul{margin-bottom:0}.related-box{background:var(--mist);padding:24px 28px;clear:both;margin-top:26px}.related-box h2{font-size:20px;margin:0 0 15px}.related-box a{display:block;margin:8px 0;font-size:14px}.external-references{border-top:1px solid var(--line);padding:28px 0 0;margin-top:30px}.external-references h2{font-size:20px}.external-links{display:flex;gap:12px 24px;flex-wrap:wrap}.external-links a{font-size:13px}.knowledge-item{border-top:1px solid var(--line);padding:22px 0 16px!important}.knowledge-item h2{font-size:22px;margin:0 0 16px}.knowledge-item dl{margin:0;display:grid;grid-template-columns:75px 1fr;gap:9px 15px;font-size:14px}.knowledge-item dt{font-weight:600;color:var(--ink)}.knowledge-item dd{margin:0}.article-topline{display:flex;gap:18px;flex-wrap:wrap;color:#778079;font-size:12px;margin-top:18px}.article-topline .tag{margin:0}.article-banner{display:grid;grid-template-columns:1.05fr 1fr;gap:34px;align-items:center;padding:30px 0 15px}.article-banner img{border-radius:4px;width:100%;aspect-ratio:3/2;object-fit:contain}.article-banner p{font-size:15px;line-height:2}.article-banner .caption{font-size:12px;color:#7a8277;display:block;margin-top:15px}.article-navigation{display:flex;justify-content:space-between;gap:28px;border-top:1px solid var(--line);padding-top:25px;margin-top:30px}.article-navigation a{max-width:48%;font-size:13px}.article-navigation small{display:block;color:#7d8276;font-size:11px}.news-index-intro{padding:30px 0}.category-index{display:flex;gap:10px 20px;flex-wrap:wrap;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:13px}.category-index a{border-bottom:1px solid var(--gold)}.news-index-list{padding-bottom:65px}.news-index-item{display:grid;grid-template-columns:1fr 1.2fr;gap:40px;padding:35px 0;border-bottom:1px solid var(--line);align-items:center}.news-index-item img{width:100%;aspect-ratio:3/2;object-fit:contain;border-radius:4px}.news-index-item h2{font-size:26px;margin:0 0 16px}.news-index-item p{font-size:14px}.news-index-item .value{font-size:12px;color:#6c7b71;margin-top:13px}.news-index-item:nth-child(even){grid-template-columns:1.2fr 1fr}.news-index-item:nth-child(even)>a{order:2}.info-body{max-width:850px;margin:0 auto;padding:35px 0 65px}.info-body section{margin-bottom:35px}.info-body h2{font-size:26px;margin-bottom:18px}.info-body p{font-size:15px;line-height:2.1}.info-body a{border-bottom:1px solid var(--gold)}.no-js-note{font-size:12px;color:var(--red)}
@media(min-width:1500px){.wrap{width:1180px}}
@media(max-width:1100px){.wrap{width:calc(100% - 48px)}.main-nav{gap:17px}.main-nav a{font-size:13px}.brand img{width:178px}.hero-stage{gap:25px}.hero-tools{padding-left:20px}.split{gap:28px}.article-layout{gap:30px;grid-template-columns:minmax(0,1fr) 190px}.copyright{font-size:9px;gap:8px}.registrations{gap:10px}}
@media(max-width:800px){.header-inner{min-height:80px;gap:18px;flex-wrap:wrap;padding:8px 0}.brand img{width:178px;height:58px}.menu-button{display:block}.main-nav{display:flex;flex-wrap:wrap;gap:0;width:100%;border-top:1px solid var(--line);padding-top:5px}.main-nav a{padding:11px 12px;width:33.333%;text-align:center;font-size:13px}.main-nav a[aria-current]:after{bottom:5px}.js .main-nav{display:none}.js .main-nav.is-open{display:flex}.hero{padding-top:34px}.hero-stage{grid-template-columns:1fr 1.1fr;gap:22px}.hero-tools{padding-left:15px}.hero-note{font-size:21px}.hero-tools .actions{gap:10px}.hero-tools .button{padding:9px 13px;font-size:12px}.hero-tools .small{font-size:11px}.quick-features{margin-top:20px}.quick-features li{gap:8px}.quick-features span{font-size:10px}.hero-art{border-top-left-radius:80px}.section{padding:45px 0}.split,.split.reverse{grid-template-columns:1fr;gap:25px}.section-image{max-width:510px}.split.reverse .section-image{order:0}.section-head{display:block}.section-head p{margin-top:15px}.news-card h3{font-size:21px}.privacy-grid{gap:20px}.guide-end .wrap{display:block}.guide-end nav{max-width:none;margin-top:22px}.footer-top{gap:35px;grid-template-columns:.9fr 1.5fr}.copyright{flex-wrap:wrap;font-size:10px;gap:10px}.article-layout{grid-template-columns:1fr;gap:20px;padding-top:25px}.toc{order:-1;display:flex;gap:10px 18px;flex-wrap:wrap;padding-top:12px}.toc strong{width:100%;font-size:16px}.toc a{padding:4px 0;border:0}.toc .side-note{display:none}.article-banner{gap:22px}.entry-strip a{padding:18px 12px;gap:10px}.entry-strip strong{font-size:14px}.entry-strip small{font-size:10px}.entry-strip b{font-size:19px}.news-index-item,.news-index-item:nth-child(even){gap:25px;grid-template-columns:1fr 1.1fr}.news-index-item h2{font-size:23px}}
@media(max-width:560px){body{font-size:15px}.wrap{width:calc(100% - 36px)}.header-inner{min-height:75px}.brand img{width:166px;height:54px}.hero-heading{text-align:left}.hero-heading .eyebrow{justify-content:flex-start;font-size:9px;letter-spacing:.13em}.hero-heading h1{font-size:28px}.hero-heading>p{font-size:14px;line-height:1.95;margin-top:18px}.hero-stage{display:flex;flex-direction:column;gap:24px;margin-top:26px}.hero-art{width:100%;border-radius:65px 4px 4px 4px}.hero-art figcaption{font-size:9px;bottom:13px;left:16px}.hero-tools{width:100%;padding:0 0 0 17px}.hero-note{font-size:22px;margin-bottom:17px}.hero-tools .actions{margin:17px 0}.hero-tools .button{font-size:13px;padding:11px 14px}.hero-tools .small{font-size:12px}.quick-features{display:grid;grid-template-columns:1fr;margin-top:20px}.quick-features li{padding:10px 0}.quick-features span{font-size:12px}.entry-strip{grid-template-columns:1fr;margin-top:0}.entry-strip a,.entry-strip a:first-child{padding:14px 0;border-right:0;border-bottom:1px solid var(--line);gap:17px}.entry-strip a:last-child{border-bottom:0}.entry-strip a div{display:flex;gap:15px;align-items:center}.entry-strip strong{font-size:14px}.entry-strip small{font-size:11px}.section{padding:37px 0}.section h2{font-size:24px}.number{font-size:10px}.table-scroll th,.table-scroll td{padding:11px 12px;font-size:12px;min-width:100px}.table-scroll th:last-child,.table-scroll td:last-child{min-width:160px}.split .table-scroll th,.split .table-scroll td{min-width:95px}.split .table-scroll th:last-child,.split .table-scroll td:last-child{min-width:145px}.symptom-list div{grid-template-columns:97px 1fr;gap:12px;font-size:13px}.news-section{padding:38px 0}.news-intro{font-size:14px}.news-grid{grid-template-columns:1fr;gap:32px}.news-copy{padding:18px 0 0}.news-card h3{font-size:23px}.news-card p{font-size:14px}.privacy-grid{grid-template-columns:1fr;gap:22px}.privacy-item{display:grid;grid-template-columns:30px 1fr;gap:0 14px}.privacy-item h3{margin:0 0 8px}.privacy-item p{grid-column:2}.faq-list summary{font-size:15px}.directory{grid-template-columns:1fr}.guide-end{padding:34px 0}.guide-end h2{font-size:23px}.footer-top{grid-template-columns:1fr;gap:30px;padding:33px 0}.footer-links{gap:16px;grid-template-columns:1fr 1fr}.footer-links>div:last-child{grid-column:1/-1}.footer-links>div:last-child a{display:inline-block;margin-right:17px}.footer-lead p{max-width:100%}.copyright{display:block;padding:20px 0}.copyright p{white-space:normal;font-size:9px}.registrations{flex-wrap:wrap;gap:3px 14px;margin-top:10px;font-size:10px}.registrations span{white-space:normal}.crumbs{margin:22px 0;font-size:11px}.page-heading h1{font-size:27px}.page-heading .lead{font-size:15px}.article-body h2{font-size:23px}.article-body .section-image{float:none;width:100%;margin:0 0 25px}.article-body p,.article-body li{font-size:14px}.article-body .checks{padding:20px}.article-banner{grid-template-columns:1fr;gap:20px}.article-banner p{font-size:14px}.article-layout{padding-bottom:35px}.toc{gap:7px 14px}.toc a{font-size:11px}.knowledge-item dl{grid-template-columns:1fr;gap:4px}.knowledge-item dd{margin-bottom:8px}.knowledge-item h2{font-size:20px}.news-index-item,.news-index-item:nth-child(even){grid-template-columns:1fr;gap:20px;padding:28px 0}.news-index-item:nth-child(even)>a{order:0}.news-index-item h2{font-size:23px}.news-index-list{padding-bottom:35px}.category-index{font-size:12px}.related-box{padding:20px}.info-body{padding-top:26px}.info-body h2{font-size:23px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}