:root{--bg:#F5F7F8;--card:#fff;--ink:#173449;--muted:#526673;--blue:#0076B8;--link:#00669f;--blue-hover:#005b90;--teal:#087568;--line:#dce4e8;--soft:#eaf2f5;--radius:24px;--shadow:0 8px 28px rgba(23,52,73,.035);--max:1200px;--duration:180ms;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:auto;scroll-padding-top:100px}body{margin:0;color:var(--ink);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:17px;line-height:1.8;-webkit-font-smoothing:antialiased}body.scroll-locked{overflow:hidden}img{display:block;max-width:100%;height:auto}a{color:var(--link);text-decoration:none;transition:color var(--duration),background var(--duration),transform var(--duration)}button,input,textarea{font:inherit}button{cursor:pointer}a:hover{color:var(--blue-hover)}button,a,summary,textarea{-webkit-tap-highlight-color:transparent}button:disabled{cursor:wait;opacity:.6}button:active,.button:active{transform:translateY(1px)}:focus-visible{outline:3px solid #0076B8;outline-offset:4px}textarea:focus-visible{outline-offset:2px}h1,h2,h3,p,figure{margin-top:0}h1,h2,h3{line-height:1.35;letter-spacing:-.025em;font-weight:650;overflow-wrap:anywhere}h1{font-size:clamp(36px,4vw,54px);margin-bottom:24px}h2{font-size:32px;margin-bottom:22px}h3{font-size:21px;margin-bottom:12px}p{margin-bottom:20px}p:last-child{margin-bottom:0}ul,ol{padding-left:1.3em}li+li{margin-top:8px}button,summary{color:inherit}button{border:0}main{min-height:55vh}main:focus{outline:none}.container{width:min(calc(100% - 112px),var(--max));margin-inline:auto}.section{padding-block:88px}.white-section{background:#fff}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--teal);margin-bottom:18px}.lede{font-size:19px;line-height:1.85;color:var(--muted)}.muted{color:var(--muted);font-size:15px}.text-link{font-weight:600;display:inline-flex;align-items:center;min-height:44px;gap:8px}.button{display:inline-flex;align-items:center;justify-content:center;gap:14px;min-height:48px;border-radius:999px;padding:11px 24px;font-weight:600;font-size:16px;text-align:center;line-height:1.5;transition:background var(--duration),color var(--duration),transform var(--duration)}.primary{background:var(--blue);color:#fff}.primary:hover{background:var(--blue-hover);color:#fff}.secondary{background:#e9f1f5;color:#075f8f}.secondary:hover{background:#d9e8ef;color:#004c76}.button-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px}.grid{display:grid;gap:24px}.three{grid-template-columns:repeat(3,minmax(0,1fr))}.two{grid-template-columns:repeat(2,minmax(0,1fr))}.compact{gap:18px}.skip{position:fixed;z-index:200;left:20px;top:-100px;padding:12px 24px;border-radius:12px;background:#fff;box-shadow:var(--shadow)}.skip:focus{top:12px}.header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.98);border-bottom:1px solid var(--line)}.nav-wrap{height:88px;display:flex;align-items:center;gap:32px}.brand{display:flex;align-items:center;min-height:44px;flex:none}.brand img{width:192px;height:45px;object-fit:contain}.nav-wrap>nav{display:flex;align-items:center;justify-content:center;gap:20px;flex:1}.nav-link,.nav-group summary{display:flex;align-items:center;gap:6px;min-height:44px;padding:7px 4px;white-space:nowrap;font-size:15px;font-weight:550;color:var(--ink)}.nav-link:hover,.nav-group summary:hover{color:var(--blue)}.current>.nav-link,.nav-link.current,.nav-group.current summary{color:var(--blue)}.nav-link.current:after{content:"";height:4px;width:4px;background:currentColor;border-radius:50%}.nav-group summary{cursor:pointer;list-style:none}.nav-group summary::-webkit-details-marker{display:none}.nav-panel{position:absolute;left:50%;transform:translateX(-50%);top:87px;width:min(1100px,calc(100% - 80px));background:#fff;box-shadow:0 20px 35px #17344912;border:1px solid var(--line);border-radius:0 0 24px 24px;padding:28px 32px 32px}.mega-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.mega-grid h3{font-size:18px}.mega-grid .nav-link{white-space:normal;font-size:15px;font-weight:400}.nav-phone{font-size:14px;white-space:nowrap;font-weight:600;min-height:44px;display:flex;align-items:center}.menu-toggle{display:none}.hero{position:relative;isolation:isolate;overflow:hidden;min-height:560px;display:flex;align-items:center;padding:72px 0;background:#e4eef1}
.nav-chevron{display:block;flex:none;width:8px;height:8px;margin-left:2px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;border-radius:1px;transform:translateY(-2px) rotate(45deg);transition:transform var(--duration)}
.nav-group[open] .nav-chevron{transform:translateY(2px) rotate(225deg)}
.hero-background{position:absolute;inset:0;z-index:0;width:100%;height:100%;object-fit:cover;object-position:center;pointer-events:none}
.hero-slider{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.hero-slide-track{display:flex;width:100%;height:100%;transition:transform .5s ease;will-change:transform}
.hero-slide-track>.hero-background,.hero-slide-track>.hero-background:not(:first-child){position:relative;inset:auto;display:block;flex:0 0 100%;width:100%;height:100%;object-fit:cover;object-position:center}
.mobile-service-groups{display:none}
.hero::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(245,247,248,.97) 0%,rgba(245,247,248,.93) 27%,rgba(245,247,248,.78) 43%,rgba(245,247,248,.12) 70%,rgba(245,247,248,.04) 100%);pointer-events:none}
.hero-content{position:relative;z-index:2}
.hero-copy{max-width:660px}
.hero h1{font-size:clamp(38px,3.7vw,54px);line-height:1.28;letter-spacing:-.055em}
.hero-copy .eyebrow{margin-bottom:24px}
.hero .lede{color:#29475a}
.hero-caption{font-size:13px;margin-top:28px;color:#355568}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:36px}.section-heading h2{margin-bottom:0}.section-heading p:not(.eyebrow){margin:14px 0 0;color:var(--muted)}.section-heading>.text-link{flex-shrink:0}.service-card{padding:30px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);display:flex;flex-direction:column}.card-index{font-size:11px;font-weight:700;letter-spacing:.1em;color:var(--teal);margin-bottom:28px}.service-card h3{font-size:26px}.service-card>p{color:var(--muted);font-size:16px;margin-bottom:24px}.service-links{display:flex;flex-direction:column;gap:4px;margin-top:auto;padding-top:8px}.service-links a{min-height:44px;display:flex;align-items:center;font-size:15px}.card-bottom-link{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);font-size:15px;font-weight:600;min-height:44px}.scenario-link{display:flex;flex-direction:column;padding:28px;border:1px solid var(--line);border-radius:var(--radius);color:var(--ink);background:var(--bg)}.scenario-link:hover{color:var(--ink);border-color:#a9c8d8;background:#eef4f7;transform:translateY(-2px)}.scenario-link h3{font-size:23px;margin-top:22px}.scenario-link p{font-size:16px;color:var(--muted)}.scenario-link .text-link{margin-top:auto;color:var(--link);font-size:15px}.tag{font-size:12px;color:var(--teal);font-weight:600}.process-layout{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}.process-layout>div>p:not(.eyebrow){max-width:430px;color:var(--muted)}.steps{list-style:none;padding:0;margin:24px 0 0}.steps>li{display:flex;gap:22px;padding:24px 0;border-bottom:1px solid var(--line);margin:0}.steps>li:first-child{padding-top:0}.steps p{font-size:16px;color:var(--muted)}.steps h3{font-size:19px}.step-number{display:flex;align-items:center;justify-content:center;flex:none;width:42px;height:42px;border-radius:50%;background:#e3efed;color:var(--teal);font-size:13px;font-weight:650}.home-steps{margin:0}.trust-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:center}.trust-grid>img{width:100%;height:480px;object-fit:cover;border-radius:24px}.trust-grid>div>p{color:var(--muted)}.trust-item{padding:18px 0;border-top:1px solid var(--line)}.trust-item h3{font-size:18px}.trust-item p{font-size:16px;color:var(--muted)}.cta-panel{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:44px;background:#e7f0f4;border-radius:24px;margin-top:64px}.cta-panel h2{font-size:30px;margin-bottom:12px}.cta-panel p{color:var(--muted);font-size:16px}.cta-panel .eyebrow{font-size:12px}.cta-panel .button{flex-shrink:0;max-width:100%}.home-contact-line{display:flex;justify-content:space-between;gap:20px;margin-top:28px;font-size:15px;color:var(--muted)}#contact .cta-panel{margin-top:0}.site-footer{background:#173449;color:#f2f6f8;padding-top:60px;font-size:14px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:30px}.site-footer a{color:#e0edf3}.site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}.footer-brand strong{font-size:26px;letter-spacing:.02em}.footer-brand strong span{font-size:21px}.footer-brand p{color:#c4d7e1;font-size:13px;margin:16px 0}.footer-tel{font-size:19px;min-height:44px;display:flex;align-items:center}.footer-column h3{font-size:15px;margin-bottom:18px}.footer-column>a{display:flex;align-items:center;min-height:44px;line-height:1.6;font-size:13px}.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-top:42px;padding-block:22px;border-top:1px solid #ffffff26;color:#c4d7e1;font-size:12px}.footer-bottom a{min-height:44px;display:flex;align-items:center}.legacy-anchor{display:block;scroll-margin-top:24px} [hidden]{display:none!important}
@media(max-width:1100px){.container{width:calc(100% - 80px)}.nav-wrap{gap:22px}.nav-phone{display:none}.brand img{width:170px}.nav-wrap>nav{justify-content:flex-end;gap:18px}.hero-copy{max-width:600px}.service-card{padding:24px}.footer-grid{grid-template-columns:1.3fr repeat(3,1fr)}.footer-grid>.footer-column:last-child{grid-column:2/5;display:flex;flex-wrap:wrap;gap:14px}.footer-grid>.footer-column:last-child h3{display:none}.trust-grid{gap:40px}.process-layout{gap:48px}.cta-panel{padding:32px;align-items:flex-start;flex-direction:column}}
@media(max-width:800px){.container{width:calc(100% - 48px)}.section{padding-block:54px}h2{font-size:28px}.header .nav-wrap{height:76px;justify-content:space-between}.brand img{width:166px;height:40px}.menu-toggle{display:flex;align-items:center;justify-content:center;gap:12px;border-radius:999px;background:var(--soft);font-size:15px;min-height:44px;padding:8px 16px;z-index:2}.nav-wrap>nav{display:none;position:fixed;top:76px;bottom:0;left:0;right:0;overflow-y:auto;overscroll-behavior:contain;background:#fff;padding:24px;flex-direction:column;align-items:stretch;justify-content:flex-start;gap:4px}.nav-wrap>nav.is-open{display:flex}.nav-link,.nav-group summary{min-height:50px;font-size:17px;padding:9px 10px}.nav-group{border-block:1px solid var(--line)}.nav-panel{position:static;transform:none;width:auto;padding:12px 12px 24px;border:0;border-radius:0;box-shadow:none}.mega-grid{grid-template-columns:1fr;gap:18px}.mega-grid h3{margin:12px 0 4px}.mega-grid .nav-link{font-size:16px;padding:8px 0}.hero{min-height:620px;align-items:flex-start;padding:48px 0 144px}.hero-background{object-position:58% center}.hero::after{background:linear-gradient(180deg,rgba(245,247,248,.95) 0%,rgba(245,247,248,.9) 52%,rgba(245,247,248,.78) 73%,rgba(245,247,248,.15) 100%)}.hero-copy{max-width:600px}.hero h1{font-size:36px;letter-spacing:-.025em}.hero .lede{font-size:17px}.hero-caption{margin-top:20px}.three{grid-template-columns:1fr}.two{grid-template-columns:1fr}.service-card{padding:28px}.service-card h3{font-size:25px}.section-heading{align-items:flex-start;flex-direction:column;gap:18px;margin-bottom:28px}.section-heading>.text-link{font-size:15px}.process-layout,.trust-grid{grid-template-columns:1fr;gap:32px}.trust-grid>img{height:340px}.cta-panel{margin-top:40px;padding:28px}.cta-panel h2{font-size:26px}.home-contact-line{flex-direction:column;gap:8px}.home-contact-line a{min-height:44px;display:flex;align-items:center}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}.footer-brand{grid-column:1/-1}.footer-grid>.footer-column:last-child{grid-column:auto;display:block}.footer-grid>.footer-column:last-child h3{display:block}.footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}.site-footer{padding-top:44px}.desktop-break{display:none}}
@media(max-width:800px){.nav-group summary .nav-chevron{margin-left:auto}}
@media(max-width:390px){.container{width:calc(100% - 40px)}.hero h1{font-size:34px}.button{padding:11px 20px}.service-card,.scenario-link{padding:24px}.footer-grid{gap:24px 18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
.menu-toggle:hover,.dialog-close:hover{background:#d9e8ef;color:#005b90}
.site-footer :focus-visible{outline-color:#fff}
.footer-mobile-nav{display:none}
@media(min-width:801px){
 .site-footer .footer-bottom a::after{content:"↑";margin-left:8px}
 .page-sidebar .sidebar-return::before{content:"←";margin-right:8px}
}
/* On narrow screens, keep the photograph under the copy without a blurred duplicate. */
@media(max-width:800px){
 .mobile-service-groups{display:grid;gap:8px}
 .mega-grid{display:none}
 .mobile-service-group{background:var(--bg);border:1px solid var(--line);border-radius:14px;overflow:hidden}
 .mobile-service-group>summary{display:flex;align-items:center;justify-content:space-between;min-height:54px;padding:10px 14px;color:var(--ink);font-size:16px;font-weight:650;cursor:pointer;list-style:none}
 .mobile-service-group>summary::-webkit-details-marker{display:none}
 .mobile-service-group>summary::after{content:"+";font-size:23px;line-height:1;color:var(--blue);font-weight:400}
 .mobile-service-group[open]>summary::after{content:"−"}
 .mobile-service-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding:0 10px 12px}
 .mobile-service-options>a{display:flex;align-items:center;justify-content:center;min-height:52px;padding:8px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font-size:13px;line-height:1.4;text-align:center;white-space:normal}
 .mobile-service-options>a.current{background:#e5f2f6;border-color:#8ebdcf;color:var(--blue);font-weight:700}
 .mobile-service-options>a.current::after{display:none}
 .nav-group summary .nav-chevron{display:none}
 html{scroll-padding-top:76px}
 body{font-size:16px;line-height:1.7}
 .container{width:calc(100% - 40px)}
 .section{padding-block:44px}
 .header .nav-wrap{height:68px}
 .brand img{width:150px;height:auto}
 .menu-toggle{min-width:74px;min-height:44px;padding:7px 12px}
 .nav-wrap>nav{top:68px;padding:16px 20px calc(24px + env(safe-area-inset-bottom,0px));gap:0}
 .nav-wrap>nav>.nav-link{border-bottom:1px solid var(--line)}
 .nav-panel{padding:8px 2px 18px}
 .mega-grid{gap:6px}
 .mega-grid>div{padding:8px 14px 12px;background:var(--bg);border-radius:14px}
 .mega-grid h3{margin:2px 0 4px;font-size:16px}
 .mega-grid .nav-link{min-height:44px;font-size:15px;border-top:1px solid var(--line)}
 .hero{display:block;min-height:0;padding:0;background:#eaf2f5}
 .hero::after{display:block;background:linear-gradient(180deg,rgba(234,242,245,.62) 0%,rgba(234,242,245,.78) 42%,rgba(234,242,245,.94) 100%)}
 .hero-content{padding-block:28px 36px}
 .hero-copy{display:flex;flex-direction:column;align-items:flex-start}
 .hero .button-row{order:2;align-self:stretch}
 .hero-slide-track>.hero-background{object-position:54% center}
 .hero-slide-track>.hero-background:nth-child(n+2){object-position:82% center}
 .hero h1{font-size:clamp(31px,8vw,38px);line-height:1.3;margin-bottom:16px}
 .hero .lede{font-size:16px;line-height:1.7}
 .hero-caption{order:1;margin:18px 0 16px;font-size:12px}
 .section-heading{gap:10px;margin-bottom:24px}
 .service-card,.scenario-link{padding:22px;border-radius:18px}
 .card-index{margin-bottom:14px}
 .service-card h3{font-size:23px}
 .service-links a{min-height:48px;border-bottom:1px solid var(--line)}
 .scenario-link h3{margin-top:12px;font-size:21px}
 .steps>li{gap:14px;padding:18px 0}
 .step-number{width:38px;height:38px}
 .trust-grid>img{height:auto;max-height:none;object-fit:contain}
 .cta-panel{margin-top:32px;padding:24px;border-radius:18px;gap:20px}
 .cta-panel .button{width:100%}
 .site-footer{padding-top:30px}
 .footer-grid{display:block}
 .site-footer .footer-grid>.footer-column{display:none}
 .footer-brand strong{font-size:23px}
 .footer-brand strong span{font-size:19px}
 .footer-brand p{margin:7px 0 10px;font-size:12px}
 .footer-brand .footer-address{display:none}
 .footer-tel{font-size:20px;font-weight:600;min-height:48px}
 .footer-mobile-nav{display:block;margin-top:18px}
 .footer-mobile-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
 .footer-mobile-actions a{display:flex;align-items:center;justify-content:center;min-height:48px;border:1px solid #6f8999;border-radius:12px;background:#25465a;color:#fff;font-size:15px;font-weight:600}
 .footer-mobile-legal{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:18px}
 .footer-mobile-legal a{display:flex;align-items:center;min-height:44px;font-size:13px;color:#c4d7e1}
 .footer-bottom{margin-top:16px;padding-block:12px calc(12px + env(safe-area-inset-bottom,0px));gap:0;font-size:11px}
 .footer-bottom a{font-size:13px}
}
@media(max-width:540px){
 .hero .button-row,.about-intro-copy .button-row{align-items:stretch;flex-direction:column;gap:8px}
 .hero .button-row .button,.about-intro-copy .button-row .button{width:100%}
 .hero .button-row .button{min-height:50px}
 .footer-brand{grid-column:1/-1}
}

@media(max-width:800px){
 .footer-mobile-actions{grid-template-columns:minmax(0,1fr)}
 .footer-mobile-actions a{min-height:44px}
}

/* Brand phone and full-width service navigation at the foot of the banner. */
.nav-phone{gap:10px;color:var(--blue);font-size:24px;font-weight:750;letter-spacing:-.035em;font-variant-numeric:tabular-nums}
.nav-phone svg{width:27px;height:27px;flex:none}
.hero{padding-bottom:120px}
.hero-services{position:absolute;inset:auto 0 0;z-index:3;background:rgba(160,193,213,.46);-webkit-backdrop-filter:blur(20px) saturate(140%);backdrop-filter:blur(20px) saturate(140%);border-top:1px solid rgba(255,255,255,.55);box-shadow:inset 0 1px 0 rgba(255,255,255,.18)}
.hero-services-inner{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
.hero-services a{display:flex;align-items:center;justify-content:center;min-height:72px;padding:16px 20px;color:#173c53;font-size:19px;font-weight:600;letter-spacing:.04em;text-align:center;border-inline-start:1px solid #ffffff55}
.hero-services a:last-child{border-inline-end:1px solid #ffffff55}
.hero-services a:hover,.hero-services a:focus-visible{background:rgba(0,118,184,.18);color:#004c76}
.hero-services a:focus-visible{outline:2px solid #0076b8;outline-offset:-5px}
@media(max-width:1250px) and (min-width:1101px){.nav-phone{font-size:20px;gap:7px}.nav-phone svg{width:23px;height:23px}.nav-wrap{gap:20px}}
@media(max-width:800px){
 .hero{padding-bottom:0}
 .hero-content{padding-block:36px 44px}
 .hero-services{position:relative;inset:auto}
 .hero-services-inner{width:100%}
 .hero-services a{min-height:64px;padding:14px 8px;font-size:14px;letter-spacing:0}
}
@media(max-width:390px){.hero-services a{font-size:12px;padding-inline:4px}}

/* HAST wide corporate header: brand, navigation, and direct contact tools. */
.header{background:#fff;border-bottom:1px solid #e8eef2}
.header .nav-wrap{width:calc(100% - 96px);max-width:1800px;gap:28px;height:88px}
.header .brand img{width:202px;height:auto}
.header .nav-wrap>nav{justify-content:flex-end;gap:30px}
.header .nav-wrap>nav>.nav-link,.header .nav-group>summary{position:relative;min-height:88px;padding:0 2px;font-size:16px;font-weight:500}
.header .nav-wrap>nav>.nav-link::after,.header .nav-group>summary::after{content:"";position:absolute;bottom:0;left:0;width:100%;height:3px;border-radius:0;background:var(--blue);transform:scaleX(0);transition:transform .2s}
.header .nav-wrap>nav>.nav-link.current::after,.header .nav-group.current>summary::after{transform:scaleX(1)}
.header .nav-phone{padding-left:24px;border-left:1px solid var(--line);font-size:21px;gap:9px}
.header .nav-phone svg{width:23px;height:23px}
.header-consult{display:flex;flex:none;align-items:center;justify-content:center;gap:8px;min-width:44px;min-height:44px;color:#527083;font-size:13px}
.header-consult svg{width:27px;height:27px}
.header-consult:hover{color:var(--blue)}
.header .nav-panel{top:87px;width:min(1200px,calc(100% - 96px));border-radius:0 0 16px 16px;padding:32px 40px}
@media(max-width:1350px) and (min-width:801px){
 .header .nav-wrap{width:calc(100% - 64px);gap:22px}
 .header .nav-wrap>nav{gap:22px}
 .header .brand img{width:180px}
 .header .nav-phone{font-size:18px;padding-left:20px}
 .header-consult span{display:none}
}
@media(max-width:1100px) and (min-width:801px){.header .nav-phone{display:none}.header .nav-wrap>nav{gap:24px}}
@media(max-width:800px){
 .header .nav-wrap{width:calc(100% - 40px);height:68px;gap:14px}
 .header .brand{margin-right:auto}
 .header .brand img{width:150px}
 .header .menu-toggle{order:3}
 .header-consult{order:2}
 .header-consult span{display:none}
 .header .nav-wrap>nav{gap:0;justify-content:flex-start}
 .header .nav-wrap>nav>.nav-link,.header .nav-group>summary{min-height:54px;padding:10px;font-size:17px}
 .header .nav-wrap>nav>.nav-link::after,.header .nav-group>summary::after{display:none}
 .header .nav-panel{width:auto;padding:8px 2px 18px;border-radius:0}
}