:root{--navy:#1B2E4B;--navy-deep:#0e1f35;--teal:#2BB5A0;--teal-dark:#249688;--teal-soft:rgba(43,181,160,.12);--gold:#F5A623;
--bg:#FAFBFC;--surface:#fff;--surface-2:#F1F5F9;--border:#E2E8F0;--text:#1B2E4B;--text-2:#475569;--muted:#64748B;--shadow:0 1px 2px rgba(15,23,42,.06),0 8px 24px rgba(15,23,42,.06);--radius:16px}
@media(prefers-color-scheme:dark){:root{--bg:#0b1626;--surface:#122238;--surface-2:#182b45;--border:#25395a;--text:#EAF0F8;--text-2:#B7C4D6;--muted:#8CA0BB;--shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.3);--teal-soft:rgba(43,181,160,.18)}}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--teal-dark);text-decoration:none}a:hover{text-decoration:underline}
@media(prefers-color-scheme:dark){a{color:var(--teal)}}
img{max-width:100%;height:auto;display:block}
.skip{position:absolute;left:-999px;top:8px;background:var(--navy);color:#fff;padding:8px 14px;border-radius:8px;z-index:200}.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--teal);outline-offset:2px;border-radius:4px}
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--teal),#3B9AE8);z-index:300;transition:width .1s}
/* Nav */
.bnav{position:sticky;top:0;z-index:100;background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.bnav-in{max-width:1180px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:-.03em;color:var(--text)!important;text-decoration:none!important}
.brand img{height:30px;width:auto}.brand span{color:var(--teal)}
.bnav-links{display:flex;align-items:center;gap:22px;font-size:14px;font-weight:500}
.bnav-links a{color:var(--text-2)}.bnav-links a:hover{color:var(--text);text-decoration:none}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:10px;font-weight:600;font-size:14px;border:0;cursor:pointer;background:var(--teal);color:#fff!important;text-decoration:none!important;transition:transform .15s,background .15s}
.btn:hover{background:var(--teal-dark);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--text)!important;border:1px solid var(--border)}.btn-ghost:hover{background:var(--surface-2)}
/* Layout */
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.narrow{max-width:760px;margin:0 auto}
.bhero{padding:64px 0 32px;text-align:center}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--teal-dark);background:var(--teal-soft);padding:6px 12px;border-radius:99px}
.bhero h1{font-size:clamp(32px,5vw,52px);line-height:1.1;letter-spacing:-.035em;margin:18px auto 14px;max-width:820px}
.bhero p{color:var(--text-2);font-size:18px;max-width:640px;margin:0 auto}
.search{display:flex;gap:8px;max-width:520px;margin:28px auto 0;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:6px;box-shadow:var(--shadow)}
.search input{flex:1;border:0;background:transparent;color:var(--text);font:inherit;padding:10px 14px;min-width:0}.search input:focus{outline:none}
.chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:26px 0 8px}
.chip{padding:8px 16px;border-radius:99px;border:1px solid var(--border);background:var(--surface);color:var(--text-2)!important;font-size:14px;font-weight:500;text-decoration:none!important;transition:all .15s}
.chip:hover{border-color:var(--teal);color:var(--text)!important}.chip.on{background:var(--navy);border-color:var(--navy);color:#fff!important}
@media(prefers-color-scheme:dark){.chip.on{background:var(--teal);border-color:var(--teal)}}
.chip small{opacity:.6;margin-left:4px}
/* Cards */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin:32px 0 48px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.thumb{aspect-ratio:16/9;background:linear-gradient(135deg,var(--navy),#243D5E 55%,var(--teal));position:relative;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb .ph{position:absolute;inset:0;display:flex;align-items:flex-end;padding:16px;color:#fff;font-weight:800;font-size:15px;letter-spacing:-.01em;opacity:.9}
.card-b{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.cat{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--teal-dark)}
@media(prefers-color-scheme:dark){.cat{color:var(--teal)}}
.card h3{font-size:19px;line-height:1.3;letter-spacing:-.015em}
.card h3 a{color:var(--text);text-decoration:none}.card h3 a::after{content:"";position:absolute;inset:0}
.card{position:relative}
.card p{color:var(--text-2);font-size:15px;flex:1}
.meta{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:13px;color:var(--muted);align-items:center}
.feat{display:grid;grid-template-columns:1.15fr 1fr;gap:0;margin-top:28px;position:relative}
.feat .thumb{aspect-ratio:auto;min-height:340px}
.feat .card-b{padding:34px;justify-content:center}.feat h2{font-size:30px;line-height:1.2;letter-spacing:-.025em}
.feat h2 a{color:var(--text)}.feat h2 a::after{content:"";position:absolute;inset:0}
.pill{display:inline-block;background:var(--gold);color:#0e1f35;font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:99px;width:max-content}
.h-sec{font-size:22px;letter-spacing:-.02em;margin:40px 0 0}
.empty{text-align:center;padding:64px 0;color:var(--muted)}
.pager{display:flex;justify-content:center;gap:6px;margin:0 0 64px;flex-wrap:wrap}
.pager a,.pager span{padding:9px 14px;border-radius:10px;border:1px solid var(--border);background:var(--surface);font-size:14px;color:var(--text-2);text-decoration:none}
.pager .cur{background:var(--navy);color:#fff;border-color:var(--navy)}.pager .dis{opacity:.4}
/* Newsletter */
.news{background:linear-gradient(135deg,var(--navy-deep),var(--navy) 60%,#1d5a63);color:#fff;border-radius:22px;padding:40px;margin:16px 0 64px;display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:center}
.news h2{font-size:26px;letter-spacing:-.02em;line-height:1.2;margin-bottom:8px}.news p{color:#C7D3E3}
.news form{display:flex;gap:8px;flex-wrap:wrap}.news input[type=email]{flex:1;min-width:200px;padding:13px 16px;border-radius:10px;border:0;font:inherit;background:#fff;color:#0e1f35}
.news small{display:block;margin-top:10px;color:#9FB1C9;font-size:12px;width:100%}
.hp{position:absolute;left:-9999px;opacity:0}
.flash{background:var(--teal-soft);border:1px solid var(--teal);color:var(--text);padding:14px 18px;border-radius:12px;margin:20px auto;max-width:760px;text-align:center}
.err{color:#fda4af;font-size:13px;width:100%}
/* Article */
.crumbs{font-size:13px;color:var(--muted);padding:26px 0 0;display:flex;flex-wrap:wrap;gap:6px}.crumbs a{color:var(--muted)}.crumbs span[aria-hidden]{opacity:.5}
.ahead{padding:22px 0 8px}.ahead h1{font-size:clamp(30px,4.6vw,46px);line-height:1.13;letter-spacing:-.035em;margin:14px 0 16px}
.lead{font-size:20px;color:var(--text-2);line-height:1.55}
.byline{display:flex;align-items:center;gap:14px;margin:24px 0;flex-wrap:wrap}
.avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--teal),#3B9AE8);color:#fff;display:grid;place-items:center;font-weight:800;flex-shrink:0}
.byline b{display:block;font-size:15px}.byline small{color:var(--muted);font-size:13px}
.cover{border-radius:20px;overflow:hidden;margin:8px 0 12px;box-shadow:var(--shadow)}.cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:56px;align-items:start;margin-top:24px}
.layout.no-toc{grid-template-columns:minmax(0,760px);justify-content:center}
.aside{position:sticky;top:88px;display:flex;flex-direction:column;gap:18px}
.box{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:18px 20px}
.box h4{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.toc ol{list-style:none;display:flex;flex-direction:column;gap:2px}
.toc a{display:block;padding:6px 12px;border-left:2px solid var(--border);color:var(--text-2);font-size:14px;line-height:1.4;text-decoration:none}
.toc a:hover{color:var(--text)}.toc a.on{border-left-color:var(--teal);color:var(--text);font-weight:600;background:var(--teal-soft)}
.share{display:flex;gap:8px;flex-wrap:wrap}
.share a,.share button{width:38px;height:38px;border-radius:10px;border:1px solid var(--border);background:var(--surface);display:grid;place-items:center;color:var(--text-2);cursor:pointer;transition:all .15s}
.share a:hover,.share button:hover{border-color:var(--teal);color:var(--teal-dark)}.share svg{width:17px;height:17px}
.takeaways{background:var(--teal-soft);border:1px solid color-mix(in srgb,var(--teal) 40%,transparent);border-radius:16px;padding:22px 26px;margin:0 0 32px}
.takeaways h2{font-size:16px;margin:0 0 10px;display:flex;gap:8px;align-items:center}
.takeaways ul{padding-left:20px;display:flex;flex-direction:column;gap:6px}
.prose{font-size:18px;line-height:1.75;color:var(--text)}
.prose>*+*{margin-top:1.15em}
.prose h2{font-size:30px;line-height:1.2;letter-spacing:-.025em;margin-top:2em}.prose h3{font-size:22px;line-height:1.3;letter-spacing:-.015em;margin-top:1.7em}
.prose a{text-decoration:underline;text-underline-offset:3px}
.prose ul,.prose ol{padding-left:1.4em;display:flex;flex-direction:column;gap:.4em}
.prose blockquote{border-left:4px solid var(--teal);background:var(--surface-2);padding:16px 22px;border-radius:0 12px 12px 0;color:var(--text-2);font-style:italic}
.prose img{border-radius:14px;margin-inline:auto}
.prose figcaption{font-size:14px;color:var(--muted);text-align:center;margin-top:8px}
.prose table{width:100%;border-collapse:collapse;font-size:16px;display:block;overflow-x:auto}
.prose th{background:var(--navy);color:#fff;text-align:left;padding:10px 14px}.prose td{padding:10px 14px;border-bottom:1px solid var(--border)}.prose tr:nth-child(even) td{background:var(--surface-2)}
.prose code{background:var(--surface-2);padding:2px 6px;border-radius:6px;font-size:.9em}
.prose pre{background:var(--navy-deep);color:#e6edf7;padding:18px;border-radius:12px;overflow-x:auto}.prose pre code{background:none;padding:0}
.prose hr{border:0;border-top:1px solid var(--border);margin:2.4em 0}
.faq{margin-top:48px}.faq h2{font-size:28px;letter-spacing:-.02em;margin-bottom:16px}
.faq details{background:var(--surface);border:1px solid var(--border);border-radius:12px;margin-bottom:10px}
.faq summary{cursor:pointer;padding:16px 20px;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}.faq summary::after{content:"+";font-size:22px;color:var(--teal);line-height:1}
.faq details[open] summary::after{content:"−"}.faq details>div{padding:0 20px 18px;color:var(--text-2)}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin:36px 0 0}.tags a{font-size:13px;background:var(--surface-2);color:var(--text-2);padding:6px 12px;border-radius:99px;text-decoration:none}
.disc{font-size:13px;color:var(--muted);border-top:1px solid var(--border);margin-top:36px;padding-top:16px}
.author{display:flex;gap:18px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px;margin-top:36px}
.author p{color:var(--text-2);font-size:15px;margin-top:4px}
.cta{background:linear-gradient(135deg,var(--navy-deep),var(--navy));color:#fff;border-radius:18px;padding:28px 30px;margin:44px 0 0;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.cta h3{font-size:22px;letter-spacing:-.02em}.cta p{color:#C7D3E3;margin-top:4px}
.pn{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:40px}
.pn a{display:block;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:16px 20px;color:var(--text);text-decoration:none}.pn a:hover{border-color:var(--teal)}
.pn small{display:block;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px}.pn .r{text-align:right}
/* Footer */
.bfoot{border-top:1px solid var(--border);background:var(--surface);margin-top:32px}
.bfoot-in{max-width:1180px;margin:0 auto;padding:36px 24px;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.bfoot a{color:var(--text-2);margin-right:18px}
@media(max-width:960px){.grid{grid-template-columns:repeat(2,1fr)}.feat{grid-template-columns:1fr}.feat .thumb{min-height:220px}.layout{grid-template-columns:1fr}.aside{position:static;order:-1}.toc-box{display:none}.news{grid-template-columns:1fr;padding:28px}}
@media(max-width:640px){.grid{grid-template-columns:1fr}.bnav-links a:not(.btn){display:none}.prose{font-size:17px}.pn{grid-template-columns:1fr}.wrap{padding:0 18px}.author{flex-direction:column}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.bnav,.aside,.news,.cta,.pn,.bfoot,.progress{display:none!important}.layout{display:block}}