:root{--ink:#10213d;--muted:#62728c;--line:#dbe5f3;--soft:#f4f8ff;--panel:#fff;--blue:#2458bd;--blue-dark:#153d88;--teal:#14c6a4;--amber:#f9c74f;--danger:#c45135;--shadow:0 18px 50px rgba(16,33,61,.09)}
*{box-sizing:border-box}body{margin:0;background:#f7fbff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.75}a{color:inherit;text-decoration:none}
.site-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px clamp(20px,5vw,72px);background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.brand img{display:block;width:210px;height:auto}.site-nav{display:flex;align-items:center;justify-content:flex-end;gap:clamp(10px,1.15vw,18px);flex:1;min-width:0;font-weight:800;color:#33435e}.site-nav a{flex:0 0 auto;white-space:nowrap;padding:8px 3px;border-bottom:3px solid transparent}.site-nav a.active,.site-nav a:hover{color:var(--blue);border-bottom-color:var(--teal)}.nav-toggle{display:none}.language-picker{flex:0 0 auto;min-width:118px;max-width:132px;color:var(--muted);font-size:12px;font-weight:900}.language-picker span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.language-picker select{width:100%;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);padding:8px 9px;font:inherit;font-size:13px;cursor:pointer;text-overflow:ellipsis}
.orion-ad{padding:14px clamp(20px,5vw,72px);background:linear-gradient(90deg,#10213d,#173f91 55%,#0f9f91)}.orion-ad a{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:18px;color:#fff;max-width:1180px;margin:0 auto}.ad-kicker,.ad-action{border-radius:999px;padding:7px 12px;background:rgba(255,255,255,.13);font-size:14px;font-weight:800;white-space:nowrap}.ad-action{background:var(--amber);color:#10213d}
main{width:min(1180px,calc(100% - 40px));margin:0 auto}.hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);gap:42px;align-items:center;padding:64px 0 42px}.eyebrow{margin:0 0 10px;color:var(--teal);font-weight:900;letter-spacing:0}h1{margin:0;max-width:790px;font-size:clamp(38px,5.8vw,68px);line-height:1.1;letter-spacing:0}.lead{max-width:820px;margin:22px 0 0;color:var(--muted);font-size:19px}.hero-visual{min-height:320px;border-radius:28px;background:radial-gradient(circle at 25% 25%,rgba(20,198,164,.25),transparent 28%),radial-gradient(circle at 72% 72%,rgba(36,88,189,.22),transparent 34%),#fff;border:1px solid var(--line);box-shadow:var(--shadow);display:grid;place-items:center;overflow:hidden}.chain-map{position:relative;width:300px;height:250px}.chain-map:before{content:"";position:absolute;inset:35px;border:2px dashed rgba(36,88,189,.32);border-radius:42% 58% 55% 45%;transform:rotate(-16deg)}.chain-map span{position:absolute;display:grid;place-items:center;width:82px;height:82px;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:0 12px 30px rgba(16,33,61,.12);font-weight:900;color:var(--blue)}.chain-map span:nth-child(1){left:2px;top:28px}.chain-map span:nth-child(2){right:8px;top:12px;color:var(--teal)}.chain-map span:nth-child(3){left:110px;top:88px;color:var(--ink);width:92px;height:92px}.chain-map span:nth-child(4){left:18px;bottom:10px;color:#935ad7}.chain-map span:nth-child(5){right:0;bottom:28px;color:#b7791f}
.content-section{padding:42px 0;border-top:1px solid var(--line)}.section-head{display:grid;grid-template-columns:.72fr 1fr;gap:32px;align-items:start;margin-bottom:22px}.section-head h2{margin:0;font-size:clamp(28px,3.8vw,44px);line-height:1.18;letter-spacing:0}.section-head p{margin:0 0 12px;color:var(--muted);font-size:17px}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card-grid.compact{grid-template-columns:repeat(4,minmax(0,1fr))}.info-card{min-height:190px;padding:22px;border:1px solid var(--line);border-radius:10px;background:var(--panel);box-shadow:0 10px 24px rgba(16,33,61,.05)}.link-card{display:flex;flex-direction:column;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.link-card:hover{transform:translateY(-3px);border-color:rgba(20,198,164,.7);box-shadow:var(--shadow)}.card-label{width:max-content;margin-bottom:12px;padding:4px 9px;border-radius:999px;background:#eaf6ff;color:var(--blue);font-size:13px;font-weight:900}.info-card h3{margin:0 0 10px;font-size:22px;line-height:1.25}.info-card p{margin:0;color:var(--muted)}.read-more{margin-top:auto;padding-top:18px;color:var(--teal);font-weight:900}
.article-shell{max-width:900px;margin:0 auto 20px}.article-block{margin:24px 0;padding:26px;border:1px solid var(--line);border-radius:10px;background:#fff}.article-block h2{margin:0 0 12px;font-size:28px;line-height:1.25}.article-block h3{margin:16px 0 8px;font-size:19px}.article-block p{margin:0 0 12px;color:#43546f;font-size:18px}.article-block p:last-child{margin-bottom:0}.example-block{border-color:rgba(20,198,164,.5);background:#f1fffb}.warning-block{border-color:rgba(196,81,53,.35);background:#fff8f4}.concept-diagram{margin:0 0 28px;padding:24px;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:var(--shadow)}.diagram-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.diagram-flow span{position:relative;display:grid;place-items:center;min-height:92px;padding:14px;border-radius:12px;background:linear-gradient(135deg,#f3f8ff,#fff);border:1px solid var(--line);text-align:center;font-weight:900;color:var(--blue)}.diagram-flow span:not(:last-child):after{content:"";position:absolute;right:-12px;top:50%;width:10px;height:2px;background:var(--teal)}figcaption{margin-top:12px;color:var(--muted);font-size:14px}.fact-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0}.fact-list div{padding:14px;border:1px solid var(--line);border-radius:8px;background:#f8fbff}.fact-list dt{font-weight:900;color:var(--blue)}.fact-list dd{margin:4px 0 0;color:#43546f}.timeline-list{display:grid;gap:12px;margin:0;padding-left:0;list-style:none}.timeline-list li{display:grid;grid-template-columns:92px 1fr;gap:14px;align-items:start;padding:13px 0;border-bottom:1px solid var(--line)}.timeline-list li:last-child{border-bottom:0}.timeline-list time{font-weight:900;color:var(--teal)}.timeline-list span{color:#43546f}.code-example{padding:16px;border:1px solid var(--line);border-radius:8px;background:#f8fbff}.code-example code{display:block;overflow:auto;white-space:nowrap;padding:13px;border-radius:8px;background:#10213d;color:#d7e3ff;font-family:Consolas,"Courier New",monospace;font-size:15px}.apps-block ul{margin:0;padding-left:22px;color:#43546f;font-size:18px}.apps-block li{margin:8px 0}
.path-list{display:grid;gap:12px;padding-left:24px}.path-list li{padding:14px 18px;border:1px solid var(--line);border-radius:10px;background:#fff}.path-list a{display:grid;gap:4px}.path-list span{color:var(--muted)}.faq-list{display:grid;gap:12px}details{border:1px solid var(--line);border-radius:10px;background:#fff;padding:18px 20px}summary{cursor:pointer;font-size:18px;font-weight:900}details p{margin:12px 0 0;color:var(--muted)}
.site-footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px;padding:34px clamp(20px,5vw,72px);color:#d7e3ff;background:#10213d}.site-footer p{margin:6px 0 0;color:#adc0de}.site-footer .ad-contact{flex-basis:100%;overflow-wrap:anywhere}.ad-contact a{color:inherit;text-decoration:underline}
@media(max-width:1040px){.card-grid,.card-grid.compact{grid-template-columns:repeat(2,minmax(0,1fr))}.diagram-flow{grid-template-columns:repeat(2,1fr)}.diagram-flow span:not(:last-child):after{display:none}}
@media(max-width:1280px){.brand img{width:190px}.site-header{gap:12px}.language-picker{min-width:110px;max-width:122px}.site-nav{gap:10px;font-size:15px}}
@media(max-width:1180px){.site-header{align-items:center}.brand img{width:180px}.nav-toggle{display:inline-flex;border:1px solid var(--line);border-radius:8px;background:#fff;padding:9px 12px;font-weight:900;color:var(--blue)}.site-nav{display:none;position:absolute;left:20px;right:20px;top:82px;padding:16px;border:1px solid var(--line);border-radius:10px;background:#fff;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.site-nav.open{display:flex}.language-picker{margin-left:auto;min-width:118px;max-width:132px}.orion-ad a{grid-template-columns:1fr}.hero{grid-template-columns:1fr;padding-top:44px}.hero-visual{min-height:280px}.section-head{grid-template-columns:1fr;gap:12px}.card-grid,.card-grid.compact{grid-template-columns:1fr}.site-footer{flex-direction:column}}
@media(max-width:520px){main{width:min(100% - 28px,1180px)}h1{font-size:34px}.lead{font-size:17px}.hero-visual{min-height:240px}.chain-map{transform:scale(.78)}.article-block{padding:20px}.diagram-flow{grid-template-columns:1fr}}
[dir="rtl"] .site-nav,[dir="rtl"] .orion-ad a,[dir="rtl"] .section-head,[dir="rtl"] .site-footer{text-align:right}[dir="rtl"] .timeline-list li{grid-template-columns:1fr 92px}[dir="rtl"] .timeline-list time{grid-column:2}[dir="rtl"] .timeline-list span{grid-column:1;grid-row:1}