:root{--night:#241c31;--plum:#382c49;--ink:#292133;--muted:#6d6575;--line:#ddd7e3;--paper:#faf9fc;--lilac:#d8c6ef;--accent:#634090;--white:#fff;--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;color:var(--ink);background:var(--paper);font:16px/1.8 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-underline-offset:5px}a:focus-visible,summary:focus-visible{outline:3px solid #b394dc;outline-offset:5px}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.35;font-weight:650;letter-spacing:-.035em}h1{font-size:clamp(34px,4.4vw,62px)}h2{font-size:clamp(25px,3vw,38px)}h3{font-size:23px}p{max-width:67ch}code{font-size:.92em;overflow-wrap:anywhere}ul{padding-left:22px}li+li{margin-top:8px}.fx-wrap{width:min(1184px,calc(100% - 96px));margin-inline:auto}.fx-skip{position:absolute;left:20px;top:-80px;background:white;padding:8px;z-index:9}.fx-skip:focus{top:12px}.fx-header{background:var(--night);color:white}.fx-header-row{min-height:90px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid #ffffff25}.fx-wordmark{text-decoration:none;font-size:25px;letter-spacing:-1px;font-weight:750;white-space:nowrap}.fx-wordmark span{font-weight:400;font-size:14px;margin-left:12px;letter-spacing:.05em;opacity:.75}.fx-wide-nav{display:flex;gap:30px;font-size:14px}.fx-wide-nav a{text-decoration:none}.fx-phone-nav{display:none}.fx-eyebrow{font-size:12px;font-weight:600;letter-spacing:.11em;color:var(--accent);margin-bottom:20px}.fx-opening{background:var(--night);color:white;padding-top:55px}.fx-opening .fx-eyebrow{color:var(--lilac)}.fx-opening h1{max-width:780px}.fx-opening-intro{position:absolute;right:max(48px,calc((100vw - 1184px)/2));top:174px;font-size:18px;color:#d9d0e3;line-height:1.9}.fx-choice-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:45px;margin-bottom:38px;border-top:1px solid #ffffff35;border-bottom:1px solid #ffffff35}.fx-choice-grid a{display:flex;flex-direction:column;text-decoration:none;padding:25px 27px;border-right:1px solid #ffffff35;transition:background .15s}.fx-choice-grid a:first-child{padding-left:0}.fx-choice-grid a:last-child{border:0}.fx-choice-grid a:hover{background:#ffffff0c}.fx-choice-grid span{font-size:12px;color:var(--lilac);margin-bottom:10px}.fx-choice-grid strong{font-size:23px;font-weight:550;letter-spacing:-.03em}.fx-choice-grid small{font-size:13px;color:#c8bed0;margin-top:9px}.fx-photo{position:relative}.fx-photo img{display:block;width:100%;height:auto;object-fit:cover;object-position:50% 54%;border-radius:16px 16px 0 0}.fx-photo figcaption{font-size:11px;color:#c8bed0;padding:10px 0 20px}.fx-diagnosis{display:grid;grid-template-columns:1fr 1.5fr;gap:80px;padding-block:88px}.fx-section-heading p:last-child{margin-top:17px;color:var(--muted)}.fx-symptoms details{border-bottom:1px solid var(--line)}.fx-symptoms details:first-child{border-top:1px solid var(--line)}.fx-symptoms summary{cursor:pointer;padding:22px 0;font-weight:600;font-size:20px;list-style-position:inside}.fx-symptoms details>div{padding:0 0 25px 24px}.fx-symptoms p{color:var(--muted);margin-bottom:15px}.fx-inline{display:inline-block;color:var(--accent);font-size:14px;font-weight:600}.fx-reference-band{background:#ede8f3;padding:55px 0}.fx-reference-grid{display:grid;grid-template-columns:1fr 1.5fr;gap:80px}.fx-reference-grid p+p{margin-top:17px}.fx-button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:10px 22px;background:var(--accent);color:white;text-decoration:none;border-radius:8px;font-weight:600;font-size:14px;margin-top:24px}.fx-home-reading{padding-top:78px}.fx-reading{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:28px}.fx-reading-link{display:block;text-decoration:none;background:white;border:1px solid var(--line);padding:30px;border-radius:var(--radius)}.fx-reading-link:hover{border-color:var(--accent)}.fx-reading-link span{display:block;font-size:12px;color:var(--accent);margin-bottom:16px}.fx-reading-link h3{font-size:22px}.fx-reading-link p{color:var(--muted);font-size:14px;margin-top:14px}.fx-home-last{margin-block:65px 80px;border-top:1px solid var(--line);padding-top:34px;display:grid;grid-template-columns:1fr 1.5fr;gap:15px 80px}.fx-home-last h2{font-size:24px;grid-row:span 2}.fx-home-last p{color:var(--muted)}.fx-footer{background:#201a29;color:#c8bdcf;padding:45px 0 32px;font-size:13px}.fx-footer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px}.fx-footer .fx-wordmark{color:white}.fx-footer nav{display:flex;gap:24px;flex-wrap:wrap}.fx-footer nav a{text-decoration:none}.fx-footnote{margin-top:25px;font-size:12px;color:#b5a9be}.fx-footer small{display:block;margin-top:12px;font-size:11px}.fx-inner{padding-block:28px 75px}.fx-breadcrumb{font-size:12px;color:var(--muted);margin-bottom:34px}.fx-page-head{max-width:860px;margin-bottom:45px}.fx-page-head h1{font-size:43px}.fx-page-head>p:last-child{margin-top:18px;color:var(--muted)}.fx-route-answer{background:#ede8f3;padding:35px;border-radius:var(--radius);margin-bottom:35px}.fx-route-answer h2,.fx-next-step h2,.fx-comparison h2,.fx-help-content h2,.fx-index-note h2{font-size:25px;margin-bottom:18px}.fx-route-answer p+p,.fx-next-step p+p{margin-top:18px}.fx-comparison{display:grid;grid-template-columns:1fr 1fr;gap:40px}.fx-comparison section{border-top:2px solid var(--accent);padding-top:24px}.fx-next-step{margin-top:40px;padding-top:30px;border-top:1px solid var(--line)}.fx-source{background:#f0edf4;padding:24px 28px;margin-top:38px;border-left:3px solid #b49bcc;font-size:13px;color:var(--muted)}.fx-source h2{font-size:15px;margin-bottom:10px}.fx-help-grid{display:grid;grid-template-columns:220px 1fr;gap:70px}.fx-help-grid>nav{display:flex;flex-direction:column;gap:14px;align-items:start}.fx-help-grid>nav a{font-size:14px}.fx-help-content section{padding:0 0 30px;margin-bottom:30px;border-bottom:1px solid var(--line);scroll-margin-top:25px}.fx-help-content section p+p{margin-top:15px}.fx-help-content .fx-inline{margin-top:18px}dt{font-weight:650;margin-top:18px}dd{margin:4px 0 0;color:var(--muted)}.fx-index-note{margin-top:50px;padding:32px;background:#ede8f3;border-radius:var(--radius)}.fx-index-note .fx-inline{margin-left:24px}.fx-legal{max-width:830px}.fx-legal h2{font-size:25px;margin:34px 0 17px}.fx-legal p{max-width:none}.fx-story-main{padding-block:30px 75px}.fx-story{max-width:850px;margin-inline:auto}.fx-story>header{padding-bottom:28px;border-bottom:1px solid var(--line)}.fx-story h1{font-size:42px;line-height:1.5}.fx-story-deck{font-size:19px;color:var(--muted);margin-top:22px}.fx-story time{display:block;font-size:12px;color:var(--muted);margin-top:20px}.fx-story-body{padding-top:35px}.fx-story-body h2{font-size:26px;margin-bottom:18px}.fx-story-body p+p{margin-top:18px}.fx-story-body>section{margin-bottom:35px}.fx-answer-first{background:#ede8f3;padding:28px;border-radius:var(--radius)}.fx-question-answer{display:grid;grid-template-columns:200px 1fr;gap:30px;border-top:1px solid var(--line);padding-top:28px}.fx-question-answer h2{font-size:22px}.fx-case-pair{display:grid;grid-template-columns:1fr 1fr;gap:25px;margin-bottom:35px}.fx-case-pair section{border-top:2px solid var(--accent);padding-top:20px}.fx-case-pair h2{font-size:22px}.fx-related{max-width:850px;margin:45px auto 0;border-top:1px solid var(--line);padding-top:25px}.fx-related h2{font-size:19px;margin-bottom:15px}.fx-related a{display:block;margin-top:12px;color:var(--accent);font-size:14px}.fx-not-found{min-height:55vh;padding-block:70px}.fx-not-found p{margin-block:20px}.fx-not-found .fx-inline{margin-left:25px}
@media(min-width:1600px){.fx-opening-intro{top:185px}}@media(max-width:900px){.fx-wrap{width:calc(100% - 48px)}.fx-opening-intro{position:static;margin-top:22px;font-size:16px}.fx-diagnosis,.fx-reference-grid{gap:35px;grid-template-columns:1fr 1.3fr}.fx-home-last{gap:20px 35px}.fx-help-grid{gap:30px;grid-template-columns:160px 1fr}.fx-choice-grid strong{font-size:19px}.fx-choice-grid a{padding-inline:18px}}@media(max-width:600px){.fx-wrap{width:calc(100% - 40px)}.fx-header-row{min-height:72px}.fx-wordmark{font-size:23px}.fx-wordmark span{font-size:12px;margin-left:8px}.fx-wide-nav{display:none}.fx-phone-nav{display:block;position:relative;font-size:13px}.fx-phone-nav summary{cursor:pointer;padding:8px 0 8px 12px}.fx-phone-nav nav{position:absolute;top:45px;right:0;width:170px;background:var(--plum);z-index:5;border:1px solid #ffffff30;border-radius:9px;padding:15px;box-shadow:0 10px 30px #0003}.fx-phone-nav nav a{display:block;padding:10px 0;text-decoration:none}.fx-opening{padding-top:34px}.fx-opening h1{font-size:34px;line-height:1.4}.fx-eyebrow{font-size:10px;margin-bottom:17px}.fx-opening-intro{margin-top:19px;font-size:15px;line-height:1.8}.fx-choice-grid{grid-template-columns:1fr;margin-top:26px;margin-bottom:25px}.fx-choice-grid a{display:grid;grid-template-columns:65px 1fr;padding:15px 0;border-right:0;border-bottom:1px solid #ffffff25;gap:1px 8px}.fx-choice-grid span{grid-row:span 2;margin:1px 0 0;font-size:11px}.fx-choice-grid strong{font-size:18px}.fx-choice-grid small{margin-top:3px;font-size:11px}.fx-photo img{height:215px;object-position:70% 50%;border-radius:12px 12px 0 0}.fx-photo figcaption{font-size:10px;line-height:1.7;padding:10px 0 18px}.fx-diagnosis{grid-template-columns:1fr;padding-block:45px;gap:27px}.fx-section-heading h2{font-size:30px}.fx-section-heading p:last-child{font-size:14px;margin-top:12px}.fx-symptoms summary{font-size:18px;padding:20px 0}.fx-symptoms details>div{padding-left:0;font-size:15px}.fx-reference-band{padding-block:35px}.fx-reference-grid{grid-template-columns:1fr;gap:20px}.fx-reference-grid h2{font-size:28px}.fx-reference-grid p{font-size:15px}.fx-home-reading{padding-top:45px}.fx-reading{grid-template-columns:1fr;gap:15px}.fx-reading-link{padding:24px}.fx-reading-link h3{font-size:21px}.fx-home-last{display:block;margin-block:40px 50px;padding-top:27px}.fx-home-last h2{font-size:22px;margin-bottom:17px}.fx-home-last p{font-size:15px;margin-bottom:14px}.fx-footer-top{display:block}.fx-footer-top p{font-size:12px;margin-top:12px}.fx-footer nav{gap:15px;font-size:12px}.fx-inner,.fx-story-main{padding-block:23px 50px}.fx-breadcrumb{margin-bottom:25px;font-size:11px;overflow-wrap:anywhere}.fx-page-head{margin-bottom:30px}.fx-page-head h1{font-size:32px}.fx-page-head>p:last-child{font-size:15px}.fx-route-answer{padding:23px}.fx-route-answer h2,.fx-next-step h2,.fx-comparison h2,.fx-help-content h2{font-size:23px}.fx-comparison{grid-template-columns:1fr;gap:28px}.fx-help-grid{grid-template-columns:1fr;gap:25px}.fx-help-grid>nav{display:grid;grid-template-columns:1fr 1fr;gap:12px;background:#ede8f3;padding:18px;border-radius:12px}.fx-source{padding:20px;font-size:12px}.fx-index-note{padding:23px}.fx-index-note .fx-inline{margin:18px 0 0;display:block}.fx-story h1{font-size:31px;line-height:1.5}.fx-story-deck{font-size:16px}.fx-story-body h2{font-size:24px}.fx-answer-first{padding:22px}.fx-question-answer{display:block;padding-top:25px}.fx-question-answer h2{font-size:23px;margin-bottom:17px}.fx-case-pair{grid-template-columns:1fr;gap:25px}.fx-legal h2{font-size:24px}.fx-not-found h1{font-size:32px}.fx-not-found .fx-inline{display:block;margin:20px 0 0}}