:root{--navy:#071a24;--navy-2:#102d3a;--ink:#172d38;--muted:#58707a;--paper:#f4f7f5;--white:#fff;--line:#d9e4e2;--teal:#11b9a4;--lime:#d2ed67;--orange:#f5a848;--shadow:0 18px 50px rgba(7,26,36,.09);--radius:22px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;line-height:1.65}
a{color:#087d75;text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:#075b58}
button,input{font:inherit}
img{max-width:100%;height:auto}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
.skip-link{position:absolute;left:-9999px;top:8px;z-index:100;background:var(--lime);color:var(--navy);padding:10px 14px;border-radius:8px;font-weight:800}
.skip-link:focus{left:8px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.site-header{position:sticky;top:0;z-index:50;background:rgba(7,26,36,.96);backdrop-filter:blur(14px);color:#fff;border-bottom:1px solid rgba(255,255,255,.1)}
.header-inner{max-width:1320px;margin:auto;min-height:82px;padding:10px 24px;display:flex;align-items:center;gap:22px}
.brand{display:flex;align-items:center;flex:none}
.brand img{width:205px;height:auto;display:block}
.main-nav{display:flex;align-items:center;gap:2px;flex:1;overflow-x:auto;scrollbar-width:none}
.main-nav::-webkit-scrollbar{display:none}
.nav-link{white-space:nowrap;color:#d9e7e7;padding:8px 10px;border-radius:9px;text-decoration:none;font-size:13px;font-weight:700}
.nav-link:hover,.nav-link.active{background:rgba(17,185,164,.15);color:#7ce7d5}
.search-form{position:relative;display:flex;align-items:center;border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:4px;background:#102d3a;min-width:220px}
.search-form input{min-width:0;width:100%;border:0;background:transparent;color:#fff;padding:8px 9px;outline:none}
.search-form input::placeholder{color:#a3b8bc}
.search-form button{border:0;background:var(--lime);color:var(--navy);font-weight:800;border-radius:8px;padding:8px 11px;cursor:pointer}
.search-results{position:absolute;top:calc(100% + 8px);left:0;right:0;background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:12px;padding:6px;z-index:80;max-height:380px;overflow:auto}
.search-hit{display:block;padding:10px;border-radius:8px;color:var(--ink);text-decoration:none}
.search-hit:hover{background:#eef8f5}
.search-hit strong,.search-hit small{display:block}
.search-hit small{color:var(--muted);font-size:12px;line-height:1.4;margin-top:2px}
.menu-toggle{display:none;background:transparent;color:#fff;border:1px solid rgba(255,255,255,.25);border-radius:8px;padding:7px 10px;font-weight:700}
.page-shell{max-width:1200px;margin:0 auto;padding:0 24px}
.hero{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:36px;padding-top:54px;padding-bottom:56px}
.hero-copy{padding:25px 0}
.eyebrow{text-transform:uppercase;letter-spacing:.13em;font-size:11px;font-weight:850;color:#07877c;margin:0 0 12px}
.live-dot{display:inline-block;width:8px;height:8px;border-radius:99px;background:var(--teal);box-shadow:0 0 0 5px rgba(17,185,164,.14);margin-right:8px;vertical-align:1px}
h1,h2,h3{line-height:1.12;color:var(--navy);letter-spacing:-.035em}
h1{font-size:clamp(42px,6vw,74px);margin:0 0 20px}
h1 em{font-style:normal;color:#07877c}
h2{font-size:clamp(27px,3vw,38px);margin:0 0 14px}
h3{font-size:21px;margin:0 0 10px}
p{margin:0 0 16px}
.hero-lead{font-size:20px;color:#d0e0e1;max-width:620px}
.hero-copy h1{color:#07594f}
.hero-copy h1 em{color:#087d75}
.hero-copy .hero-lead{color:#3d4246}
.hero-copy .hero-stats strong{color:#087d75}
.hero-copy .hero-stats span{color:#3d4246}
.hero-copy .button-ghost{border-color:#82989b;color:var(--navy)}
.hero-copy .button-ghost:hover{color:var(--navy);background:#e7f0ed}
.hero-art{position:relative;display:block;margin:0;min-height:400px;border-radius:30px;background:#091d28;overflow:hidden;box-shadow:0 25px 65px rgba(6,26,36,.24);border:1px solid rgba(7,26,36,.16)}
.hero-art img{display:block;width:100%;height:100%;min-height:400px;aspect-ratio:3/2;object-fit:cover;padding:0}
.art-caption{position:absolute;left:0;right:0;bottom:0;padding:42px 22px 17px;background:linear-gradient(transparent,rgba(7,26,36,.88));color:#fff;font-size:13px;font-weight:750;letter-spacing:.02em}
.page-illustration{margin:22px 0 28px;background:#fff;border:1px solid var(--line);border-radius:17px;overflow:hidden;box-shadow:0 12px 32px rgba(7,26,36,.08)}
.page-illustration img{display:block;width:100%;aspect-ratio:1200/620;object-fit:cover}
.page-illustration figcaption{padding:8px 13px;color:var(--muted);font-size:11px;line-height:1.4}
.article-illustration{margin:22px 0 25px}
.category-hero-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(270px,390px);gap:30px;align-items:center}
.category-illustration{margin:0}
.category-illustration img{aspect-ratio:1200/700}
.utility-illustration{max-width:760px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:27px 0 34px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;border-radius:11px;font-weight:800;text-decoration:none;transition:transform .2s ease,background .2s ease}
.button:hover{transform:translateY(-2px)}
.button-primary{background:var(--lime);color:var(--navy)}
.button-primary:hover{color:var(--navy);background:#e1f68f}
.button-ghost{border:1px solid rgba(255,255,255,.35);color:#fff}
.button-ghost:hover{color:#fff;background:rgba(255,255,255,.08)}
.hero-stats{display:flex;gap:24px;flex-wrap:wrap}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats strong{font-size:24px;color:var(--lime);line-height:1.1}
.hero-stats span{font-size:12px;color:#adc4c7}
.quick-panel{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:29px 32px;box-shadow:var(--shadow);margin-bottom:72px}
.quick-panel p{color:var(--muted);max-width:480px}
.quick-panel h2{font-size:30px}
.quick-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.quick-steps a{display:flex;flex-direction:column;gap:3px;text-decoration:none;color:var(--ink);border-left:1px solid var(--line);padding:8px 14px}
.quick-steps span{color:#07877c;font-size:12px;font-weight:900}
.quick-steps strong{font-size:15px}
.quick-steps small{font-size:12px;color:var(--muted)}
.section-block,.featured-section{padding-bottom:76px}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:23px}
.section-heading h2{margin:0}
.text-link{font-size:14px;font-weight:850;color:#087d75;text-decoration:none;white-space:nowrap}
.text-link:hover{text-decoration:underline}
.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}
.category-tile{position:relative;display:flex;flex-direction:column;min-height:158px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:17px;text-decoration:none;color:var(--ink);overflow:hidden;transition:transform .2s,border-color .2s,box-shadow .2s}
.category-tile:hover{transform:translateY(-3px);border-color:#79cfc3;box-shadow:var(--shadow);color:var(--ink)}
.category-tile strong{font-size:18px;line-height:1.2;margin:11px 0 7px}
.category-tile small{font-size:12px;color:var(--muted);line-height:1.45}
.tile-index{font-size:11px;letter-spacing:.15em;color:#07877c;font-weight:900}
.tile-arrow{position:absolute;right:16px;top:14px;color:#07877c;font-size:18px}
.featured-section{background:#e9f1ee;padding-top:58px;padding-bottom:70px}
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
.guide-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:22px;display:flex;flex-direction:column;min-height:260px}
.guide-card p:not(.eyebrow){color:var(--muted);font-size:14px}
.guide-card .text-link{margin-top:auto;padding-top:12px}
.guide-card h2{font-size:20px}
.guide-card h2 a,.guide-card h3 a{color:var(--navy);text-decoration:none}
.guide-card h2 a:hover,.guide-card h3 a:hover{color:#07877c}
.editorial-note{display:flex;gap:18px;align-items:flex-start;padding-top:62px;padding-bottom:72px}
.note-icon{flex:none;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:#d7f5ed;color:#04786e;font-weight:900}
.editorial-note p{color:var(--muted);max-width:860px}
.category-hero{padding:48px 0 28px}
.category-hero h1{font-size:clamp(38px,5vw,60px)}
.category-hero .lead{font-size:18px;color:var(--muted);max-width:850px}
.count-line{color:#07877c;font-weight:850;font-size:14px}
.category-tools{display:flex;gap:14px;align-items:center;margin:5px 0 22px;padding:13px 15px;background:#e8f2ef;border-radius:12px}
.category-tools label{font-weight:800;font-size:14px}
.category-tools input,.large-search input{flex:1;min-width:0;border:1px solid #cbdad8;border-radius:9px;background:#fff;padding:11px 13px;color:var(--ink)}
.category-tools input:focus,.large-search input:focus{outline:3px solid rgba(17,185,164,.2);border-color:#11b9a4}
.category-page .guide-grid{padding-bottom:65px}
.guide-card h2{line-height:1.2}
.breadcrumbs{display:flex;gap:9px;align-items:center;flex-wrap:wrap;padding:22px 0 0;color:#6f8387;font-size:12px}
.breadcrumbs a{color:#087d75;text-decoration:none;font-weight:700}
.breadcrumbs span:last-child{color:#536a70}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:40px;padding:32px 0 76px}
.article-main{min-width:0;max-width:850px}
.article-main h1{font-size:clamp(36px,5vw,58px);margin-bottom:16px}
.article-main .lead{font-size:19px;color:#526a70;line-height:1.6}
.article-meta{display:flex;gap:18px;flex-wrap:wrap;font-size:12px;color:#72878b;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:10px 0;margin:22px 0 28px}
.article-section{padding:0 0 25px;margin:0 0 25px;border-bottom:1px solid var(--line)}
.article-section h2{font-size:25px;letter-spacing:-.02em}
.article-section p{font-size:16px;color:#344e57;line-height:1.75}
.article-section ul,.check-list{padding-left:20px;color:#344e57}
.article-section li{margin:6px 0}
.article-aside{padding-top:130px}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:17px;margin-bottom:14px}
.aside-card .eyebrow{margin-bottom:8px}
.aside-card ul{padding-left:18px;margin:0}
.aside-card li{font-size:13px;margin:8px 0}
.aside-card a{color:#087d75;text-decoration:none}
.accent-card{background:var(--navy);color:#d8e9e8;border:0}
.accent-card h2{font-size:19px;color:#fff}
.accent-card p{font-size:13px}
.accent-card a{color:var(--lime);font-weight:800}
.safety-note{border-left:4px solid var(--orange);background:#fff7e8;color:#694716;border-radius:4px 12px 12px 4px;padding:16px 18px;margin:20px 0 28px}
.source-box{background:#e8f2ef;border-radius:15px;padding:20px;margin:28px 0}
.source-box h2{font-size:21px;margin-bottom:10px}
.source-list{padding-left:20px;margin:0}
.source-list li{padding:5px 0}
.source-list a{font-weight:750}
.related-section{padding-top:24px}
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:11px}
.related-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:12px;padding:15px;text-decoration:none;color:var(--ink)}
.related-card span{font-size:10px;text-transform:uppercase;letter-spacing:.1em;color:#07877c;font-weight:850}
.related-card strong{font-size:15px;line-height:1.35;margin:5px 0}
.related-card small{font-size:12px;line-height:1.45;color:var(--muted)}
.related-card:hover{border-color:#77c9bf;color:var(--ink)}
.simple-page{max-width:850px;padding:38px 0 80px}
.simple-page h1,.error-page h1{font-size:clamp(38px,5vw,60px)}
.simple-page .lead,.error-page .lead{font-size:18px;color:var(--muted)}
.search-page{min-height:56vh}
.large-search{display:flex;flex-direction:column;gap:8px;margin:20px 0 16px;max-width:720px}
.large-search label{font-weight:800}
.large-search input{font-size:19px;padding:15px}
.sources-page-list{list-style:none;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:13px;margin:10px 0 38px}
.sources-page-list li{background:#fff;border:1px solid var(--line);padding:19px;border-radius:14px}
.sources-page-list a{font-weight:850}
.sources-page-list p{font-size:13px;color:var(--muted);margin:8px 0 0}
.error-page{padding-top:70px;padding-bottom:100px}
.site-footer{background:var(--navy);color:#d4e3e4;padding:48px 0 0}
.footer-inner{max-width:1200px;padding:0 24px;margin:auto}
.footer-top{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:36px;padding-bottom:36px}
.footer-brand{color:#fff;text-decoration:none;font-size:22px;font-weight:900;letter-spacing:-.03em}
.footer-top p{max-width:370px;color:#a9c0c3;font-size:14px}
.footer-top h2{font-size:16px;color:#fff;letter-spacing:0;margin-bottom:12px}
.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:6px 16px;padding:0;list-style:none;margin:0}
.footer-links a{font-size:12px;color:#bcd0d2;text-decoration:none}
.footer-links a:hover{color:var(--lime)}
.sponsor-area{border-top:1px solid rgba(255,255,255,.15);border-bottom:1px solid rgba(255,255,255,.15);padding:26px 0 30px}
.sponsor-area .section-heading{align-items:end;margin-bottom:16px}
.sponsor-area .section-heading h2{color:#fff;font-size:22px;margin:0}
.sponsor-area .section-heading p:not(.eyebrow){color:#a9c0c3;font-size:13px;margin:0}
.sponsor-area .eyebrow{color:var(--lime);margin-bottom:6px}
.banner-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:11px}
.banner-slot{display:flex;min-height:84px;align-items:center;justify-content:center;text-align:center;border:1px dashed rgba(178,206,208,.38);border-radius:11px;background:rgba(255,255,255,.035);color:#a8bdc0;padding:10px}
.banner-slot span{font-size:12px;font-weight:800}
.banner-slot small{display:block;font-size:10px;font-weight:500;color:#829da1}
.banner-slot a{display:block;width:100%;height:100%}
.banner-slot img{display:block;width:100%;height:100%;max-height:160px;object-fit:contain;border-radius:8px}
.footer-bottom{display:flex;justify-content:space-between;gap:18px;padding:17px 0;color:#829da1;font-size:11px}
.search-hit-category{font-size:10px!important;text-transform:uppercase;letter-spacing:.08em;color:#07877c!important}
@media(max-width:1120px){.header-inner{gap:12px}.brand img{width:170px}.nav-link{font-size:12px;padding:7px}.search-form{min-width:185px}.category-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:850px){.header-inner{flex-wrap:wrap}.menu-toggle{display:block;margin-left:auto}.search-form{order:3;width:100%;min-width:0}.main-nav{display:none;order:4;flex-basis:100%;flex-wrap:wrap;overflow:visible;padding-bottom:8px}.main-nav.open{display:flex}.hero{grid-template-columns:1fr;padding-top:32px}.hero-copy{padding:8px 0}.hero-art,.hero-art img{min-height:330px}.category-hero-layout{grid-template-columns:1fr}.category-illustration{max-width:620px}.quick-panel{grid-template-columns:1fr}.article-layout{grid-template-columns:1fr}.article-aside{padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px}.category-grid{grid-template-columns:repeat(2,1fr)}.guide-grid{grid-template-columns:repeat(2,1fr)}.footer-top{grid-template-columns:1fr 1fr}.footer-top>div:first-child{grid-column:1/-1}}
@media(max-width:560px){.header-inner{padding:10px 15px}.brand img{width:156px}.page-shell{padding-left:16px;padding-right:16px}.hero{padding-bottom:35px}.hero-art,.hero-art img{min-height:260px}.hero-stats{gap:16px}.quick-panel{padding:20px;margin-bottom:48px}.quick-steps{grid-template-columns:1fr}.quick-steps a{border-left:0;border-top:1px solid var(--line);padding:11px 0}.section-heading{align-items:flex-start;flex-direction:column}.category-grid,.guide-grid,.related-grid{grid-template-columns:1fr}.category-tile{min-height:130px}.guide-card{min-height:unset}.category-tools{align-items:stretch;flex-direction:column}.article-layout{padding-top:24px}.article-aside{grid-template-columns:1fr}.footer-top{grid-template-columns:1fr}.footer-top>div:first-child{grid-column:auto}.footer-links{grid-template-columns:1fr 1fr}.banner-grid{grid-template-columns:repeat(2,1fr)}.footer-bottom{flex-direction:column}.sources-page-list{grid-template-columns:1fr}.sponsor-area .section-heading{flex-direction:column}.editorial-note{padding-top:40px;padding-bottom:48px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}