:root { --navy:#0d203c; --navy-2:#15365d; --blue-dark:#0564d1; --blue-deep:#0051ad; --cyan:#11c6cf; --ink:#172b49; --muted:#566b86; --line:#d9e4f0; --soft:#f4f8fc; --white:#fff; --shadow:0 18px 48px rgba(0,0,0,.12); }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; scroll-padding-top:88px; }
body { margin:0; color:var(--ink); background:var(--white); font-family:"Avenir Next",Avenir,"Segoe UI",Helvetica,Arial,sans-serif; font-size:16px; line-height:1.6; text-rendering:optimizeLegibility; -webkit-font-smoothing:antialiased; }
body::-webkit-scrollbar { width:12px; }
body::-webkit-scrollbar-track { background:var(--soft); }
body::-webkit-scrollbar-thumb { background:#95aac3; border:3px solid var(--soft); border-radius:999px; }
::selection { color:var(--white); background:var(--blue-dark); }
a { color:inherit; text-decoration-thickness:1.5px; text-underline-offset:4px; }
img { display:block; max-width:100%; }
picture { display:block; }
button,a { -webkit-tap-highlight-color:transparent; }
:focus-visible { outline:3px solid var(--cyan); outline-offset:4px; }
.skip-link { position:fixed; z-index:10; left:16px; top:12px; padding:10px 14px; color:var(--white); background:var(--navy); border-radius:10px; transform:translateY(-160%); }
.skip-link:focus { transform:translateY(0); }
.shell { width:min(1180px,calc(100% - 48px)); margin-inline:auto; }
.site-header { position:sticky; z-index:5; top:0; background:rgba(255,255,255,.94); border-bottom:1px solid rgba(217,228,240,.82); backdrop-filter:blur(14px); }
.header-inner { min-height:78px; display:flex; align-items:center; justify-content:space-between; gap:32px; }
.brand { display:inline-flex; align-items:center; gap:12px; text-decoration:none; }
.brand-logo { width:144px; height:52px; object-fit:contain; }
.brand-name { color:var(--navy); font-size:16px; font-weight:850; letter-spacing:.08em; line-height:1; }
.brand-name small { display:block; margin-top:5px; color:#5a6f89; font-size:11px; font-weight:700; letter-spacing:.2em; }
.nav { display:flex; align-items:center; gap:28px; }
.nav-link { color:#405775; font-size:14px; font-weight:650; text-decoration:none; }
.nav-link:not(.button):hover,.nav-current { color:var(--blue-dark); }
.mobile-nav { display:none; position:relative; }
.mobile-nav summary { min-height:44px; display:inline-flex; align-items:center; gap:8px; padding:10px 14px; color:var(--navy); background:var(--white); box-shadow:inset 0 0 0 1px var(--line); border-radius:12px; cursor:pointer; font-size:14px; font-weight:760; list-style:none; }
.mobile-nav summary::-webkit-details-marker { display:none; }
.mobile-nav summary::after { content:"+"; color:var(--blue-dark); font-size:18px; line-height:1; }
.mobile-nav[open] summary::after { content:"−"; }
.mobile-nav-panel { position:absolute; z-index:30; top:calc(100% + 12px); right:0; width:min(300px,calc(100vw - 32px)); padding:8px; background:var(--white); border-radius:16px; box-shadow:0 14px 30px rgba(0,0,0,.14); }
.mobile-nav-panel a { display:block; padding:11px 12px; color:var(--navy); border-radius:9px; font-size:15px; font-weight:680; text-decoration:none; }
.mobile-nav-panel a:hover,.mobile-nav-panel a:focus-visible { color:var(--blue-deep); background:var(--soft); }
.button { min-height:48px; display:inline-flex; align-items:center; justify-content:center; gap:10px; padding:12px 20px; border:0; border-radius:12px; font-weight:760; line-height:1.2; text-decoration:none; transition:transform 180ms ease,background-color 180ms ease,box-shadow 180ms ease; }
.button:hover { transform:translateY(-2px); }
.button-primary { color:var(--white); background:var(--blue-dark); box-shadow:0 10px 28px rgba(0,0,0,.14); }
.button-primary:hover { color:var(--white); background:var(--blue-deep); box-shadow:0 14px 34px rgba(0,0,0,.2); }
.button-secondary { color:var(--navy); background:var(--white); box-shadow:inset 0 0 0 1px var(--line); }
.button-secondary:hover { background:var(--soft); }
.arrow { font-size:18px; line-height:1; }
.detail-hero { padding:76px 8px 86px; background:var(--soft); border-bottom:1px solid var(--line); }
.detail-hero-grid { display:grid; grid-template-columns:minmax(0,1fr) minmax(360px,.78fr); gap:72px; align-items:center; }
.breadcrumb { margin:0 0 26px; color:#5a6f89; font-size:14px; }
.breadcrumb a { color:var(--blue-dark); font-weight:700; }
h1 { max-width:700px; margin:0 0 24px; color:var(--navy); font-size:clamp(3rem,6vw,5.3rem); font-weight:780; letter-spacing:-.04em; line-height:1.02; text-wrap:balance; }
.hero-copy { max-width:64ch; margin:0 0 32px; color:var(--muted); font-size:clamp(1.05rem,1.4vw,1.2rem); }
.detail { padding:112px 8px; }
.detail-grid { display:grid; grid-template-columns:minmax(0,1.15fr) minmax(300px,.65fr); gap:84px; align-items:start; }
.detail-copy h2 { max-width:700px; margin:0 0 20px; color:var(--navy); font-size:clamp(2.25rem,4.5vw,3.8rem); font-weight:760; letter-spacing:-.04em; line-height:1.04; text-wrap:balance; }
.detail-copy > p { max-width:66ch; margin:0 0 32px; color:var(--muted); }
.detail-copy h3 { margin:50px 0 16px; color:var(--navy); font-size:1.45rem; letter-spacing:-.025em; }
.detail-copy h3:first-of-type { margin-top:0; }
.check-list { display:grid; gap:14px; padding:0; margin:0; list-style:none; }
.check-list li { display:grid; grid-template-columns:10px 1fr; gap:12px; align-items:start; color:var(--muted); }
.list-marker { width:10px; height:10px; margin-top:8px; border-radius:50%; background:var(--cyan); box-shadow:0 0 0 4px rgba(17,198,207,.15); }
.aside { position:sticky; top:126px; padding:30px; color:var(--white); background:var(--navy); border-radius:22px; box-shadow:var(--shadow); }
.aside h2 { margin:0 0 14px; color:var(--white); font-size:clamp(1.8rem,3vw,2.6rem); letter-spacing:-.035em; line-height:1.08; }
.aside p { margin:0 0 24px; color:#bed0e4; }
.aside-list { display:grid; gap:13px; padding:0; margin:0 0 28px; list-style:none; }
.aside-list li { display:flex; gap:10px; color:#e5eef8; font-size:15px; }
.aside-list li::before { content:""; width:7px; height:7px; flex:0 0 auto; margin-top:8px; border-radius:50%; background:var(--cyan); }
.steps-section { padding:0 8px 112px; }
.steps-section h2 { max-width:700px; margin:0 0 42px; color:var(--navy); font-size:clamp(2rem,4vw,3.3rem); letter-spacing:-.04em; line-height:1.05; }
.steps { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.step { min-height:190px; padding:26px; background:var(--soft); border-radius:16px; }
.step-index { display:block; margin-bottom:42px; color:var(--blue-dark); font-size:14px; font-weight:800; font-variant-numeric:tabular-nums; }
.step h3 { margin:0 0 8px; color:var(--navy); font-size:1.2rem; }
.step p { margin:0; color:var(--muted); font-size:15px; }
.cta { padding:0 8px 80px; }
.cta-box { display:flex; align-items:center; justify-content:space-between; gap:32px; padding:42px; color:var(--white); background:var(--navy); border-radius:24px; box-shadow:var(--shadow); }
.cta-box h2 { max-width:650px; margin:0; color:var(--white); font-size:clamp(2rem,4vw,3.4rem); letter-spacing:-.04em; line-height:1.05; }
.cta-box p { max-width:56ch; margin:14px 0 0; color:#b9cbe0; }
footer { color:#6a7f98; background:var(--white); border-top:1px solid var(--line); }
.footer-inner { min-height:88px; display:flex; align-items:center; justify-content:space-between; gap:24px; font-size:13px; }
.footer-inner strong { color:var(--navy); }
@media(max-width:960px) { .detail-hero-grid { grid-template-columns:1fr; gap:44px; } .detail-grid { grid-template-columns:1fr; gap:48px; } .aside { position:static; } .steps { grid-template-columns:1fr 1fr; } }
@media(max-width:860px) { .nav-link:not(.button) { display:none; } .nav { gap:10px; } .mobile-nav { display:block; } }
@media(max-width:720px) { .shell { width:min(100% - 32px,1180px); } .header-inner { min-height:70px; } .brand-logo { width:128px; height:46px; } .nav-link:not(.button) { display:none; } .nav { gap:0; } .nav .button { min-height:44px; padding:10px 14px; } .detail-hero { padding:58px 8px 70px; } h1 { font-size:clamp(2.7rem,13vw,4.2rem); } .detail { padding:82px 8px; } .steps-section { padding:0 8px 82px; } .steps { grid-template-columns:1fr; } .step { min-height:160px; } .cta { padding:0 8px 58px; } .cta-box { display:block; padding:28px; } .cta-box .button { margin-top:24px; } .footer-inner { padding:24px 0; align-items:flex-start; flex-direction:column; gap:6px; } }
@media(prefers-reduced-motion:reduce) { html { scroll-behavior:auto; } *,*::before,*::after { animation-duration:.01ms!important; animation-iteration-count:1!important; transition-duration:.01ms!important; } }