:root{--bg:#F4F7FA;--paper:#fff;--mist:#EAF1F6;--mint:#E9F8F8;--navy:#102E46;--deep:#163C57;--cyan:#13B8C5;--blue:#237BD3;--title:#18364B;--ink:#344C60;--muted:#64798A;--line:#DCE6ED;--footer:#0B2539}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.8 Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-wrap:break-word}a{color:#1467ae;text-underline-offset:3px}a:hover{color:#098a9c}button{font:inherit;cursor:pointer}img{max-width:100%;height:auto}h1,h2,h3{color:var(--title);line-height:1.38;margin:0 0 .8em}h1{font-size:clamp(2rem,3vw,2.25rem)}h2{font-size:clamp(1.5rem,2vw,1.75rem)}h3{font-size:1.25rem}p{margin:0 0 1.1em}.container{width:min(100% - 56px,1200px);margin-inline:auto}.reading{max-width:790px}.section{margin-block:60px}.section-topline{border-top:3px solid var(--navy);padding-top:22px}.eyebrow{font-size:12px;letter-spacing:.17em;text-transform:uppercase;font-weight:800;color:#087985;margin-bottom:10px}.lead{font-size:18px;line-height:1.8;max-width:800px;color:#476175}.kicker{display:block;color:#087985;font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:12px}.muted{color:var(--muted)}.text-link{font-weight:700;text-decoration-thickness:1px}.skip-link{position:absolute;left:10px;top:-100px;background:#fff;z-index:90;padding:8px}.skip-link:focus{top:8px}.site-header{position:relative;z-index:20}.brand-bar{background:#fff;border-bottom:1px solid var(--line)}.brand-row{height:72px;display:flex;align-items:center;gap:22px}.brand{display:inline-flex;align-items:center;max-width:300px;text-decoration:none;flex-shrink:1;min-width:0}.brand img{display:block;width:auto;height:auto;max-height:38px;max-width:230px;object-fit:contain}.brand-name{font-size:23px;font-weight:900;color:var(--navy);white-space:nowrap;line-height:1}.brand-name small{display:block;font-size:9px;letter-spacing:.16em;margin-top:7px}.brand-subtitle{font-size:13px;color:var(--muted);margin-right:auto}.register-btn{background:var(--navy);color:#fff;text-decoration:none;border-radius:9px;padding:7px 21px;white-space:nowrap;font-weight:700}.register-btn:hover{color:#fff;background:#1d516d}.desktop-nav{background:var(--navy)}.nav-row{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));height:50px;align-items:stretch}.nav-row>a{display:flex;align-items:center;justify-content:center;position:relative;color:#f0f6fb;text-decoration:none;font-size:14px;font-weight:600;white-space:nowrap;min-width:0}.nav-row>a:hover{background:var(--deep)}.nav-row>a[aria-current=page]{font-weight:800}.nav-row>a[aria-current=page]:after{content:"";position:absolute;bottom:0;left:27%;right:27%;height:3px;background:var(--cyan)}.menu-toggle,.nojs-nav,.mobile-quick{display:none}.menu-overlay[hidden]{display:none!important}.menu-overlay{visibility:hidden;pointer-events:none;position:fixed;inset:0;background:rgba(6,26,42,.58);z-index:40}.mobile-menu{position:fixed;top:0;bottom:0;left:0;width:min(86vw,340px);background:white;z-index:41;transform:translateX(-110%);visibility:hidden;pointer-events:none;padding:18px 20px;overflow-y:auto;box-shadow:12px 0 30px #102e4625}.mobile-menu a{display:block;padding:9px 8px;color:var(--title);text-decoration:none;border-bottom:1px solid var(--line);font-weight:600}.drawer-head{display:flex;justify-content:space-between;align-items:center}.drawer-head strong{font-size:20px;color:var(--title)}.drawer-close{border:0;background:#eef4f7;border-radius:8px;width:40px;height:40px;font-size:28px;line-height:1}.drawer-group{font-size:12px;font-weight:800;letter-spacing:.12em;color:#067c8a;margin:24px 0 5px}.menu-open{overflow:hidden}.menu-open .mobile-menu{transform:translateX(0);visibility:visible;pointer-events:auto}.menu-open .menu-overlay{visibility:visible;pointer-events:auto}.page-intro{padding-block:49px 25px}.page-intro h1{max-width:900px}.page-intro .lead{max-width:850px}.breadcrumbs{padding-top:20px;font-size:13px;color:var(--muted)}.breadcrumbs a{color:var(--muted)}.hero{padding-block:53px 37px;display:grid;grid-template-columns:1.08fr 1fr;gap:50px;align-items:center}.hero h1{font-size:clamp(2.4rem,3.5vw,2.75rem)}.hero p{max-width:630px}.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.btn{display:inline-block;text-decoration:none;padding:9px 21px;border-radius:9px;font-weight:700;background:var(--navy);color:#fff}.btn:hover{color:#fff;background:#20506c}.btn--alt{border:1px solid #8fc4cb;background:var(--mint);color:var(--deep)}.btn--alt:hover{background:#d5f1f2;color:var(--deep)}.media-frame{display:flex;align-items:center;justify-content:center;width:100%;min-width:0;padding:8px;border-radius:14px;background:var(--mist);margin:0}.media-frame img{display:block;width:auto;height:auto;max-width:100%;max-height:var(--media-limit,220px);object-fit:contain;object-position:center}.media-frame--hero{--media-limit:310px}.media-frame--feature{--media-limit:250px}.media-frame--card{--media-limit:185px}.media-frame--mobile{--media-limit:350px;max-width:320px;margin-inline:auto}.media-frame--banner{--media-limit:210px}.media-placeholder{height:130px;min-height:85px;width:100%;display:grid;place-items:center;border:1px dashed #accbd4;border-radius:8px;color:#648393;font-size:13px}.media-frame--hero .media-placeholder{height:205px}.feature-band{background:var(--paper);padding:45px 0;border-block:1px solid var(--line)}.two-col{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;align-items:center}.two-col--wide{grid-template-columns:1.2fr .8fr}.directory{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:60px}.directory-item{border-top:1px solid var(--line);padding:18px 0 22px}.directory-item h3{font-size:19px;margin-bottom:5px}.directory-item p{font-size:15px;margin-bottom:7px}.editorial-focus{display:grid;grid-template-columns:2fr 1fr;gap:35px}.focus-main{background:var(--navy);padding:36px;color:#eaf6fc;border-radius:12px}.focus-main h3{color:#fff;font-size:25px}.focus-main a{color:#70e3ea}.focus-side{border-top:3px solid var(--cyan);padding-top:18px}.focus-side article+article{border-top:1px solid var(--line);margin-top:21px;padding-top:18px}.notes-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.note{padding:23px 24px;background:white;border:1px solid var(--line);border-radius:12px}.note:nth-child(2){background:var(--mint);transform:translateY(16px)}.note:nth-child(3){background:var(--mist);transform:translateY(6px)}.route{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;counter-reset:route}.route-step{padding:18px;border-top:3px solid var(--cyan);border-right:1px solid var(--line);background:white}.route-step::before{counter-increment:route;content:'0' counter(route);font-weight:900;font-size:25px;color:#058d9b}.route-step:last-child{border-right:0}.route-step h3{margin:6px 0}.article{max-width:800px}.article p{margin-bottom:1.15em}.article h2{margin-top:36px}.article h3{margin-top:22px}.article ul,.article ol{padding-left:1.5em}.article li{margin:.4em 0}.chapter{padding-block:28px;border-bottom:1px solid var(--line)}.chapter:last-child{border-bottom:0}.split-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:52px;align-items:start}.aside-card{border-top:4px solid var(--cyan);padding:20px;background:#fff;border-radius:0 0 10px 10px}.aside-card h3{font-size:18px}.aside-card a{display:block;margin:12px 0}.index-nav{display:flex;gap:10px;flex-wrap:wrap;padding:14px 0 8px}.index-nav a{border:1px solid #afcdd9;padding:5px 12px;border-radius:20px;text-decoration:none;font-size:14px;background:#fff}.number-steps{list-style:none;counter-reset:step;padding:0}.number-steps li{position:relative;padding:17px 12px 17px 60px;border-bottom:1px solid var(--line);counter-increment:step}.number-steps li:before{content:counter(step,decimal-leading-zero);position:absolute;left:0;top:13px;color:#087e8c;font-size:25px;font-weight:900}.table-scroll{overflow-x:auto;max-width:100%;border:1px solid var(--line);border-radius:10px;background:#fff}.data-table{border-collapse:collapse;width:100%;min-width:560px;font-size:15px;line-height:1.6}.data-table caption{text-align:left;font-size:15px;font-weight:700;color:var(--title);padding:14px}.data-table th,.data-table td{padding:12px 15px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.data-table th{background:var(--mist);color:var(--title)}.data-table tr:last-child td{border-bottom:0}.panel{padding:28px 32px;background:var(--mint);border-left:4px solid var(--cyan);border-radius:0 12px 12px 0}.deep-panel{background:var(--deep);color:#ecf7fb;padding:32px;border-radius:12px}.deep-panel h2,.deep-panel h3{color:white}.matrix{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.matrix-card{border-top:4px solid var(--cyan);background:white;padding:24px}.gallery-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:start}.gallery-grid article:nth-child(even){padding-top:55px}.gallery-caption{font-size:14px;color:var(--muted);margin-top:10px}.faq details{background:#fff;border:1px solid var(--line);border-radius:9px;margin:9px 0;padding:13px 17px}.faq summary{font-weight:700;color:var(--title);cursor:pointer}.faq details p{margin:12px 0 4px}.faq details[open]{border-color:#94c6cf}.service-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:45px}.service-nav{background:#fff;border:1px solid var(--line);padding:21px;align-self:start;border-radius:10px}.service-nav a{display:block;margin:12px 0}.related{margin-block:52px 60px;padding:26px 0;border-top:3px solid var(--navy)}.related-list{display:flex;flex-wrap:wrap;gap:12px}.related-list a{padding:10px 16px;background:white;border:1px solid var(--line);border-radius:8px;font-weight:700;text-decoration:none}.site-footer{background:var(--footer);color:#DCECF5;padding:44px 0 16px;font-size:14px}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:80px}.site-footer h2{font-size:19px;color:white}.footer-brand{font-size:22px;font-weight:800;color:white}.footer-brand span{font-size:10px;letter-spacing:.14em}.footer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 20px}.site-footer a{color:#d5edf8}.footer-bottom{border-top:1px solid #375063;margin-top:24px;padding-top:14px;display:flex;justify-content:space-between;gap:15px}.back-to-top{position:fixed;bottom:22px;right:20px;border:none;border-radius:50%;width:44px;height:44px;background:var(--navy);color:white;box-shadow:0 4px 20px #102e4633}.back-to-top[hidden]{display:none}.disclaimer{border-top:1px solid var(--line);padding-top:20px;color:var(--muted);font-size:14px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #14b8c5;outline-offset:3px}
@media(max-width:1100px){.brand-subtitle{font-size:12px}.container{width:min(100% - 44px,1200px)}.section{margin-block:48px}.hero{gap:30px}}@media(max-width:920px){.brand-row{height:62px;justify-content:space-between;gap:12px}.brand{margin-inline:auto}.brand img{max-height:30px;max-width:min(34vw,190px)}.brand-name{font-size:19px}.brand-name small{font-size:8px}.brand-subtitle,.desktop-nav{display:none}.menu-toggle{display:flex;width:40px;height:40px;border:1px solid var(--line);border-radius:8px;background:white;flex-direction:column;justify-content:center;align-items:center;gap:5px;flex-shrink:0}.menu-toggle span{width:18px;height:2px;background:var(--navy)}.register-btn{font-size:13px;padding:8px 10px;line-height:1.6}.nojs-nav{display:flex;gap:12px;overflow-x:auto;white-space:nowrap;padding-block:8px;font-size:12px}.nojs-nav a{color:var(--muted)}.mobile-quick{display:flex;gap:22px;flex-wrap:wrap;padding-block:20px;font-size:14px}.page-intro{padding-block:35px 22px}.split-layout{grid-template-columns:minmax(0,1fr) 210px;gap:27px}.hero{padding-top:38px}}@media(max-width:760px){.two-col,.two-col--wide,.editorial-focus,.split-layout,.service-layout,.gallery-grid{grid-template-columns:1fr}.gallery-grid article:nth-child(even){padding-top:0}.hero{grid-template-columns:1fr;gap:22px}.hero .media-frame{order:2}.directory{gap:0 24px}.notes-grid,.matrix{grid-template-columns:1fr}.note:nth-child(2),.note:nth-child(3){transform:none}.route{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:1fr;gap:24px}.service-nav{order:2}.service-main{order:1}.aside-card{margin-top:10px}.section{margin-block:42px}}@media(max-width:640px){body{font-size:15px}.container{width:calc(100% - 32px)}h1{font-size:clamp(25px,7vw,29px)}h2{font-size:clamp(20px,6vw,23px)}h3{font-size:18px}.hero h1{font-size:clamp(27px,7.6vw,32px)}.lead{font-size:16px}.section{margin-block:35px}.feature-band{padding:30px 0}.directory{grid-template-columns:1fr}.media-frame--hero{--media-limit:205px}.media-frame--feature{--media-limit:185px}.media-frame--card{--media-limit:145px}.media-frame--mobile{--media-limit:285px;max-width:250px}.media-frame--banner{--media-limit:135px}.notes-grid{gap:11px}.focus-main,.panel,.deep-panel{padding:22px}.route{grid-template-columns:1fr}.route-step{border-right:0}.footer-bottom{flex-direction:column}.site-footer{padding-top:35px}.table-scroll{margin-right:0}.page-intro{padding-top:29px}}@media(max-width:370px){.brand img{max-width:116px}.brand-name{font-size:16px}.brand-name small{font-size:7px}.register-btn{font-size:12px;padding-inline:8px}.hero-cta .btn{padding:8px 12px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}

@media(max-width:920px){.js .nojs-nav{display:none}}