:root{--bg:#f5f7f5;--ink:#17201b;--muted:#66716a;--line:#dce3de;--brand:#146b4a;--brand-dark:#0b4d35;--accent:#f3b94f;--card:#fff;--soft:#eaf3ed;--shadow:0 12px 36px rgba(20,55,38,.08)}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.65}
a{color:inherit}
.wrap{width:min(1160px,calc(100% - 40px));margin:auto}
.site-header{background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10;backdrop-filter:blur(14px)}
.nav{display:flex;justify-content:space-between;align-items:center;min-height:70px}
.brand{font-weight:850;color:var(--brand-dark);text-decoration:none;letter-spacing:-.03em}
.nav nav{display:flex;gap:22px}
.nav a{text-decoration:none}
.nav nav a:hover,.section-head a:hover{color:var(--brand)}
.desktop-nav{display:flex;align-items:center;gap:4px}.nav-group{position:relative}.nav-group summary{list-style:none;cursor:pointer;padding:24px 12px;font-size:.92rem;font-weight:700}.nav-group summary::-webkit-details-marker{display:none}.nav-group summary:after{content:'⌄';margin-left:6px;color:var(--muted)}.nav-group[open] summary{color:var(--brand)}.dropdown{position:absolute;top:62px;left:0;width:260px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);display:grid;gap:2px}.dropdown-right{left:auto;right:0}.dropdown strong{padding:8px 10px;color:var(--muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.08em}.dropdown a{padding:8px 10px;border-radius:8px;font-size:.9rem}.dropdown a:hover{background:var(--soft)}.mobile-nav{display:none;position:relative}.mobile-nav>summary{list-style:none;cursor:pointer;border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-weight:750}.mobile-nav>summary::-webkit-details-marker{display:none}.mobile-menu{position:absolute;right:0;top:48px;width:min(320px,calc(100vw - 28px));max-height:calc(100vh - 90px);overflow:auto;display:grid;padding:16px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.mobile-menu strong{margin:10px 8px 4px;color:var(--brand);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}.mobile-menu a{padding:9px 8px;border-radius:8px}.mobile-menu a:hover{background:var(--soft)}
.mobile-nav{z-index:30}.mobile-nav>summary{width:44px;height:44px;padding:0;border-radius:12px;display:flex;align-items:center;justify-content:center;background:#fff}.menu-label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.hamburger-icon{display:grid;gap:4px;width:20px}.hamburger-icon i{display:block;height:2px;background:currentColor;border-radius:2px;transition:transform .2s ease,opacity .2s ease}.mobile-nav[open] .hamburger-icon i:nth-child(1){transform:translateY(6px) rotate(45deg)}.mobile-nav[open] .hamburger-icon i:nth-child(2){opacity:0}.mobile-nav[open] .hamburger-icon i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}.mobile-menu{top:52px;width:min(340px,calc(100vw - 28px));max-height:calc(100dvh - 88px);overscroll-behavior:contain}.mobile-menu a{padding:11px 8px}
.mobile-nav>summary{width:48px;height:48px}.mobile-menu{top:56px;padding:14px 14px calc(18px + env(safe-area-inset-bottom));width:min(360px,calc(100vw - 20px));max-height:calc(100dvh - 82px)}.mobile-menu>a{min-height:48px;display:flex;align-items:center;font-weight:650}.mobile-quick{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;padding-bottom:12px;border-bottom:1px solid var(--line)}.mobile-quick a{min-height:52px;padding:8px 6px;border-radius:11px;background:var(--soft);color:var(--brand-dark);display:flex;align-items:center;justify-content:center;text-align:center;font-size:.78rem;font-weight:800;line-height:1.25}
.hero{padding:92px 0 76px;background:radial-gradient(circle at 85% 10%,#d7ecdf,transparent 30%),linear-gradient(180deg,#fff,#eff5f1)}
.hero-grid{display:grid;grid-template-columns:1.45fr .75fr;gap:56px;align-items:center}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.76rem;font-weight:850;color:var(--brand)}
h1,h2,h3{letter-spacing:-.035em}
h1{font-size:clamp(2.7rem,6vw,5.3rem);line-height:1.01;margin:.2em 0}
.lead{font-size:1.18rem;color:var(--muted);max-width:730px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);padding:12px 17px;border-radius:999px;text-decoration:none;color:var(--ink);background:#fff;font-weight:700}
.btn.primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn:hover{transform:translateY(-1px)}
.hero-card,.card,.toc,.quick-facts,.note,.route-card{background:var(--card);border:1px solid var(--line);border-radius:18px}
.hero-card{padding:26px;box-shadow:var(--shadow)}
.hero-card ul{padding-left:20px;margin-bottom:0}
.section{padding:70px 0}
.alt{background:#eaf0ec}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:26px}
.section-head h2{margin:0;font-size:clamp(1.8rem,4vw,2.7rem)}
.section-head a{color:var(--brand);text-decoration:none;font-weight:750}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cards.three{grid-template-columns:repeat(3,1fr)}
.card{padding:23px;color:var(--ink);text-decoration:none;transition:.2s ease}
.card:hover{transform:translateY(-3px);border-color:#abc8b6;box-shadow:var(--shadow)}
.card span,.meta{color:var(--muted);font-size:.85rem}
.card h3{margin:.18em 0;font-size:1.25rem}
.link-list{display:grid;gap:10px}
.link-list a{display:flex;justify-content:space-between;gap:20px;background:#fff;border:1px solid var(--line);padding:18px 20px;border-radius:14px;text-decoration:none}
.link-list a:hover{border-color:#abc8b6}
.link-list span{color:var(--muted)}
.article{padding:66px 0;max-width:860px}
.article h1{font-size:clamp(2.5rem,6vw,4.8rem)}
.article h2{margin-top:48px;font-size:1.8rem}
.article h3{margin-top:30px}
.article li{margin:.45em 0}
.breadcrumbs{font-size:.9rem;color:var(--muted);margin-bottom:28px}
.breadcrumbs a{color:var(--brand)}
.toc{display:grid;gap:8px;padding:20px;margin:30px 0}
.toc a{color:var(--brand)}
.quick-facts{display:grid;grid-template-columns:repeat(3,1fr);margin:30px 0;overflow:hidden}
.quick-facts div{padding:19px;border-right:1px solid var(--line)}
.quick-facts div:last-child{border:0}
.quick-facts b,.quick-facts span{display:block}
.quick-facts span{color:var(--muted)}
.note{padding:19px;margin-top:34px;background:#fff9e9;border-color:#ead59c}
.route-card{padding:22px;margin:24px 0}
.route-card strong{color:var(--brand)}
.tag{display:inline-block;padding:4px 10px;border-radius:999px;background:var(--soft);color:var(--brand-dark);font-size:.8rem;font-weight:750;margin-right:6px}
.cta{padding:32px;background:var(--brand-dark);color:#fff;border-radius:22px;margin-top:48px}
.cta .btn{margin-top:10px}
.article-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.article-grid .card{background:#fff}
footer{padding:30px 0;border-top:1px solid var(--line);background:#fff;color:var(--muted)}
.footer-grid{display:flex;justify-content:space-between;gap:20px;align-items:center}
.footer-grid a{color:var(--brand);text-decoration:none}
.decision-table{width:100%;border-collapse:collapse;margin:24px 0;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden}.decision-table th,.decision-table td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}.decision-table th{background:var(--soft);color:var(--brand-dark);font-size:.88rem}.decision-table tr:last-child td{border-bottom:0}.checklist{display:grid;gap:10px;padding:0;list-style:none}.checklist li{position:relative;padding:14px 16px 14px 46px;background:#fff;border:1px solid var(--line);border-radius:13px}.checklist li:before{content:'✓';position:absolute;left:17px;top:13px;color:var(--brand);font-weight:900}.source-note{margin-top:44px;padding:18px 20px;border-top:1px solid var(--line);background:var(--soft);border-radius:14px;color:var(--muted);font-size:.9rem}.source-note strong{color:var(--ink)}.source-note a{color:var(--brand);font-weight:700}.mini-nav{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}.mini-nav a{padding:8px 12px;border-radius:999px;background:var(--soft);color:var(--brand-dark);text-decoration:none;font-weight:700;font-size:.9rem}
.trust-strip{background:var(--brand-dark);color:#fff}.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px}.trust-grid div{padding:22px 18px;border-right:1px solid rgba(255,255,255,.16)}.trust-grid div:last-child{border:0}.trust-grid strong,.trust-grid span{display:block}.trust-grid strong{font-size:1.25rem}.trust-grid span{font-size:.84rem;color:rgba(255,255,255,.72)}

@media(max-width:820px){.nav .desktop-nav{display:none}.mobile-nav{display:block;flex:0 0 auto;margin-left:12px}.nav{min-width:0}.nav>.brand{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-grid,.cards,.cards.three,.quick-facts,.article-grid{grid-template-columns:1fr}
.hero{padding:58px 0}
.quick-facts div{border-right:0;border-bottom:1px solid var(--line)}
.link-list a,.footer-grid{display:block}
.link-list span{display:block;margin-top:4px}
.footer-grid p{margin:.3em 0}
.section{padding:52px 0}
.trust-grid{grid-template-columns:repeat(2,1fr)}
.decision-table{display:block;overflow-x:auto}
.trust-grid div:nth-child(2){border-right:0}
}