:root{--ink:#102b3a;--muted:#526a78;--paper:#f2f6f7;--line:#d7e2e6;--navy:#081e2c;--blue:#123e56;--cyan:#38dccb;--green:#178164;--orange:#e3994a;--white:#fff;--radius:12px;--max:1280px;font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:102px}body{margin:0;font-size:16px;line-height:1.85}a{color:inherit;text-decoration:none}a:hover{color:#087c76}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button,summary{cursor:pointer}button:disabled{cursor:default}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #e08a29;outline-offset:5px}img,svg{max-width:100%;height:auto}figure{margin:0}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.5;letter-spacing:-.035em}p{margin-bottom:1.1em}small,.meta{font-size:13px}.wrap{width:min(var(--max),calc(100% - 80px));margin:auto}.skip{position:fixed;top:-80px;left:20px;z-index:99;background:var(--white);padding:12px}.skip:focus{top:10px}.site-header{background:var(--navy);color:#dce9ed;position:sticky;top:0;z-index:30;border-bottom:1px solid #23404f}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:84px}.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}.brand img{width:35px;height:39px}.brand strong{font-size:23px;letter-spacing:2px;display:block;line-height:1.25;color:#fff}.brand span{font-size:10px;letter-spacing:2.4px;color:#99b9c9;display:block;margin-top:5px}.main-nav{display:flex;gap:24px;font-size:14px;font-weight:600}.main-nav a{white-space:nowrap;padding:29px 0 25px;border-bottom:3px solid transparent}.main-nav a:hover,.main-nav [aria-current=page]{color:var(--cyan);border-color:var(--cyan)}.nav-toggle{display:none;color:#fff;border:1px solid #52707e;background:none;border-radius:6px;padding:8px 13px}.hero{background:var(--navy);color:#f0f6f8;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;opacity:.17;background-image:linear-gradient(#345b6b 1px,transparent 1px),linear-gradient(90deg,#345b6b 1px,transparent 1px);background-size:64px 64px;pointer-events:none;mask-image:linear-gradient(90deg,transparent,#000)}.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding-top:65px;padding-bottom:68px}.eyebrow{font-size:13px;letter-spacing:2px;text-transform:uppercase;color:var(--green);font-weight:700;margin-bottom:21px;display:flex;align-items:center;gap:12px}.eyebrow:before{content:"";display:block;width:7px;height:7px;background:currentColor;border-radius:50%}.hero .eyebrow{color:var(--cyan)}.hero h1{font-size:clamp(30px,3.3vw,47px);line-height:1.38;letter-spacing:-1.8px;margin-bottom:24px;max-width:660px}.hero h1 span{color:var(--cyan)}.hero .intro{color:#abc1cf;font-size:16px;max-width:550px;line-height:1.95}.actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:26px;padding:12px 21px;border:1px solid #65818c;border-radius:5px;font-size:14px;font-weight:700;line-height:1.5;background:transparent;color:inherit}.btn.primary{background:var(--cyan);color:#052c35;border-color:var(--cyan)}.btn:hover{background:#e7f9f5;color:#0b3d4b}.hero-note{margin-top:25px;font-size:12px;color:#8daaba}.console{background:#102c3d;border:1px solid #355466;border-radius:13px;box-shadow:0 25px 55px #00152366;overflow:hidden}.console-top{display:flex;justify-content:space-between;align-items:center;padding:15px 21px;font-size:12px;letter-spacing:1px;border-bottom:1px solid #2a4655}.status{color:var(--cyan);font-size:12px}.console-body{padding:21px}.console-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.console-kpis>div{background:#193949;border:1px solid #345262;padding:12px;border-radius:6px}.console-kpis span{font-size:12px;color:#a9c2d0;display:block}.console-kpis strong{font-size:23px;font-weight:500;letter-spacing:-.6px;color:#effbff}.console-kpis small{font-size:11px;color:var(--cyan)}.console img{width:100%;display:block;margin-top:10px}.console-bottom{font-size:12px;color:#a9c2d0;padding-top:12px;border-top:1px solid #345262;display:flex;justify-content:space-between;gap:12px}.chain{position:relative;border-top:1px solid #284654;display:grid;grid-template-columns:repeat(6,1fr);gap:10px;padding-top:23px;padding-bottom:26px}.chain a{font-size:14px;color:#d3e5ed;display:flex;justify-content:space-between;gap:5px;align-items:center}.chain a span{color:#608698;font-size:11px;display:block;letter-spacing:1px}.chain a b{color:#46bdba;font-weight:400}.section{padding:74px 0}.section-heading{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:32px}.section-heading h2{font-size:30px;margin:0}.section-heading p{max-width:560px;color:var(--muted);font-size:15px;margin:10px 0 0}.section-heading .meta{color:var(--muted);white-space:nowrap}.architecture{display:grid;grid-template-columns:1fr 1fr;gap:24px}.architecture-card{border:1px solid var(--line);background:white;padding:29px;border-radius:10px}.architecture-card h3{font-size:23px;margin-bottom:10px}.architecture-card p{color:var(--muted);font-size:15px}.step-chain{display:flex;flex-wrap:wrap;gap:8px;font-size:12px;line-height:1.5;margin:22px 0}.step-chain span{padding:7px 9px;background:#edf5f6;border:1px solid #dbe7ea;border-radius:4px}.step-chain span:last-child{color:#066556;background:#ddf6ed}.architecture-card>a{font-size:14px;color:#06776c;font-weight:700}.reading-nav{display:flex;flex-wrap:wrap;gap:9px;border-bottom:1px solid var(--line);padding-bottom:24px;margin-top:34px}.reading-nav a{font-size:13px;line-height:1.5;border:1px solid var(--line);padding:8px 13px;border-radius:4px;background:#fff}.reading-nav a:hover{border-color:#07988d}.longform{border-top:1px solid var(--line);padding:68px 0}.article-layout{display:grid;grid-template-columns:225px minmax(0,1fr);gap:64px}.article-side{color:var(--muted);font-size:13px;line-height:1.8}.article-number{font-size:58px;line-height:1;color:#bacbd1;letter-spacing:-4px;margin-bottom:16px;font-weight:300}.article-tag{color:#008b7c;font-size:12px;letter-spacing:1.5px;text-transform:uppercase;font-weight:700}.article-side p{margin-top:14px}.article-side .line{width:36px;height:2px;background:#19b8a6;margin:23px 0}.article-main{min-width:0;max-width:940px}.article-main>h2{font-size:28px;margin-bottom:23px;max-width:910px}.article-body{font-size:16px;line-height:2.05;color:#293f4b}.article-body h3{font-size:19px;color:#103e4f;margin:30px 0 13px}.article-body p{margin:0 0 20px}.article-body blockquote{border-left:3px solid #19a898;padding:19px 25px;background:#e4f3ef;margin:27px 0;font-weight:600;color:#115348}.article-body ul,.article-body ol{padding-left:24px;margin:15px 0 25px}.article-body li{padding-left:6px;margin-bottom:12px}.article-figure{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;margin:28px 0}.article-figure img{display:block;width:100%;padding:12px}.article-figure figcaption{font-size:13px;color:var(--muted);padding:14px 23px;background:#f8fbfc;border-top:1px solid var(--line)}.source-note{font-size:13px;background:#eaf0f3;padding:15px 18px;line-height:1.8;margin:24px 0;color:#4b6472}.source-note a{color:#087c76;text-decoration:underline;text-underline-offset:3px}.related{font-size:14px;border-top:1px solid var(--line);padding-top:16px;display:flex;flex-wrap:wrap;gap:13px;margin-top:30px}.related a{color:#087c76}.digest-section{background:#e8f0f3;border-top:1px solid #d9e6eb;border-bottom:1px solid #d9e6eb;padding:50px 0}.digests{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.digest{background:#fff;border:1px solid #d7e3e8;border-radius:8px;padding:26px;display:flex;flex-direction:column}.digest .meta{color:#088675;letter-spacing:1px;font-size:12px}.digest h3{font-size:18px;margin:14px 0;line-height:1.65}.digest p{font-size:14px;color:#506571;line-height:1.95}.digest a.more{margin-top:auto;color:#05776c;font-size:13px;font-weight:700;padding-top:10px}.app-digests{grid-template-columns:1fr 1fr}.observations{background:#0d2c3d;color:#e1eff4}.observations .section-heading p,.observations .meta{color:#a4bbc8}.observations .eyebrow{color:var(--cyan)}.observation{padding:36px 0;border-top:1px solid #315263;display:grid;grid-template-columns:80px 1fr;gap:30px}.observation .article-number{font-size:45px;color:#537b8c}.observation h3{font-size:23px}.observation .article-body{color:#bdd0d9;font-size:15px;columns:2;column-gap:38px}.observation p{break-inside:avoid}.faq-section{background:#fff}.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}.faq-grid details{padding:19px 0;border-bottom:1px solid var(--line);align-self:start}.faq-grid summary{font-weight:600;font-size:15px;list-style:none;display:flex;gap:15px;justify-content:space-between;line-height:1.7}.faq-grid summary::-webkit-details-marker{display:none}.faq-grid summary:after{content:"+";color:#087e74;font-size:22px;font-weight:400;line-height:1;flex-shrink:0}.faq-grid details[open] summary:after{content:"−"}.faq-grid details p{font-size:14px;color:var(--muted);margin:16px 0 0;line-height:1.95}.about-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:60px;align-items:center}.about-grid h2{font-size:28px}.about-grid p{color:#536c78;font-size:15px}.about-grid img{width:100%}.disclaimer{font-size:12px;color:#718590;border-top:1px solid var(--line);padding:23px 0;line-height:1.8}.site-footer{background:#081e2c;color:#8eaab8;padding:45px 0 24px;font-size:13px}.footer-top{display:flex;justify-content:space-between;gap:32px;align-items:start}.footer-nav{display:grid;grid-template-columns:repeat(4,auto);gap:15px 28px}.footer-nav a:hover{color:var(--cyan)}.footer-bottom{border-top:1px solid #284451;padding-top:23px;margin-top:35px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:12px}.back-top{position:fixed;bottom:25px;right:22px;border:1px solid #d1e2e7;color:#fff;background:#173e50;width:43px;height:43px;border-radius:7px;z-index:20;font-size:20px;box-shadow:0 4px 15px #08223120}.breadcrumb{font-size:12px;color:#7697a9;display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}.subhero .hero-grid{padding-top:43px;padding-bottom:43px}.subhero h1{font-size:39px}.subhero .hero-art{max-height:340px;width:100%}.subhero .hero-art img{display:block;max-height:330px;width:100%;object-fit:contain}.article-toc{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;padding:35px 0}.article-toc a{display:flex;gap:13px;padding:18px 20px;border:1px solid var(--line);background:#fff;border-radius:7px;font-size:14px;line-height:1.75}.article-toc span{color:#079486;font-size:20px;line-height:1.4}.sub-main .longform:first-of-type{border-top:0}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-top:25px}.feature{padding:21px;border:1px solid var(--line);border-radius:8px;background:#fff}.feature span{font-size:12px;color:#008979;letter-spacing:2px}.feature h3{font-size:16px;margin:8px 0}.feature p{font-size:13px;color:#5e7683;margin:0}.download-status{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin:30px 0}.download-status>div{padding:25px;border:1px solid #d9e4e8;background:#fff;border-radius:8px}.download-status strong{display:block;font-size:21px}.download-status p{font-size:14px;color:#617682;margin:8px 0}.status-pill{display:inline-block;font-size:12px;color:#8c591d;background:#fff2df;padding:4px 10px;border-radius:20px}.table-scroll{max-width:100%;overflow-x:auto;border:1px solid var(--line);margin:24px 0;background:#fff;border-radius:7px}table{border-collapse:collapse;width:100%;font-size:14px}th,td{padding:14px;text-align:left;border-bottom:1px solid #e1e8eb;min-width:110px}th{font-size:12px;color:#5f7782;background:#f4f8f9}tr:last-child td{border-bottom:0}.lab{background:#e8f3f1;border:1px solid #c6e0d9;border-radius:10px;padding:27px;margin:30px 0}.lab h3{margin:0 0 9px}.lab p{font-size:14px;color:#536f70}.calc-fields{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.calc-fields label{font-size:13px;color:#365c60}.calc-fields input{display:block;width:100%;min-width:0;background:#fff;border:1px solid #abc9c2;border-radius:4px;padding:10px 11px;color:#183e42;margin-top:5px}.calc-results{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}.calc-results>div{background:white;border:1px solid #cbe0db;padding:13px;border-radius:6px}.calc-results span{display:block;font-size:12px;color:#637d7a}.calc-results strong{font-size:24px;color:#086d60;font-weight:500}.calc-status{font-size:13px;margin-top:12px;min-height:25px;color:#846129}.trend-controls{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.trend-controls button{border:1px solid #b9d3d0;background:#fff;color:#376763;padding:7px 15px;border-radius:4px;font-size:13px}.trend-controls [aria-pressed=true]{background:#0b665e;color:#fff}.trend-svg{width:100%;height:auto;display:block;background:#fff;border-radius:5px}.trend-caption{font-size:13px;margin:13px 0 0!important}.noscript{padding:15px;background:#fff3d9;color:#775124;font-size:14px}.no-js .nav-toggle{display:none}.no-js .main-nav{display:flex}.no-js .interactive-only{display:none}.error-text{color:#aa3e27!important}::selection{background:#b4eee1;color:#0b3142}
@media(min-width:1600px){:root{--max:1380px}.hero-grid{gap:90px}}
@media(max-width:1200px){.wrap{width:calc(100% - 48px)}.main-nav{gap:14px;font-size:13px}.brand strong{font-size:21px}.hero-grid{gap:35px}.article-layout{grid-template-columns:165px minmax(0,1fr);gap:40px}.main-nav a{padding-top:29px}.brand span{letter-spacing:1.2px;font-size:9px}}
@media(max-width:1023px){.header-inner{min-height:73px}.nav-toggle{display:block}.main-nav{display:none;position:absolute;top:73px;left:0;right:0;background:#0d2939;padding:14px 24px 22px;grid-template-columns:1fr 1fr;border-bottom:1px solid #3c5b6b;gap:2px 18px}.main-nav.open{display:grid}.main-nav a{padding:11px 4px;white-space:normal}.hero-grid{gap:28px}.hero h1{font-size:33px}.console-kpis strong{font-size:20px}.console-body{padding:15px}.chain{grid-template-columns:repeat(3,1fr);gap:18px}.section{padding:55px 0}.article-layout{grid-template-columns:120px minmax(0,1fr);gap:30px}.article-main>h2{font-size:24px}.digests{gap:14px}.digest{padding:20px}.digest h3{font-size:16px}.footer-nav{grid-template-columns:repeat(3,auto);gap:14px 20px}.about-grid{gap:30px}.no-js .main-nav{position:static;display:flex;flex-wrap:wrap}.no-js .header-inner{flex-wrap:wrap;padding:15px 0}.no-js .site-header{position:static}.no-js .main-nav a{padding:5px}}
@media(max-width:767px){.wrap{width:calc(100% - 36px)}.header-inner{gap:12px;min-height:68px}.brand img{width:28px;height:32px}.brand strong{font-size:20px}.main-nav{top:68px}.hero-grid{grid-template-columns:1fr;gap:32px;padding-top:37px;padding-bottom:35px}.hero h1{font-size:32px;letter-spacing:-1px}.hero .intro{font-size:15px}.hero .eyebrow{font-size:11px;letter-spacing:1px}.hero-note{font-size:12px}.console{max-width:580px;width:100%}.console-kpis{gap:8px}.console-kpis>div{padding:10px}.console-kpis strong{font-size:21px}.chain{padding-top:20px;padding-bottom:23px;gap:17px 12px}.chain a{font-size:12px}.chain a span{font-size:10px;letter-spacing:0}.section{padding:43px 0}.section-heading{display:block;margin-bottom:25px}.section-heading h2{font-size:25px}.section-heading .meta{display:block;margin-top:9px}.section-heading p{font-size:14px}.architecture{grid-template-columns:1fr;gap:15px}.architecture-card{padding:23px}.architecture-card h3{font-size:21px}.longform{padding:38px 0}.article-layout{display:block}.article-side{display:flex;gap:12px;align-items:center;margin-bottom:18px;flex-wrap:wrap}.article-side .article-number{font-size:34px;letter-spacing:-2px;margin:0}.article-side .line,.article-side p{display:none}.article-tag{font-size:11px;letter-spacing:.7px}.article-side .meta{font-size:12px}.article-main>h2{font-size:22px;letter-spacing:-.4px;margin-bottom:21px}.article-body{font-size:16px;line-height:2}.article-body h3{font-size:18px;margin-top:25px}.article-figure img{padding:4px}.article-figure figcaption{font-size:12px;padding:11px 15px}.digest-section{padding:34px 0}.digests,.app-digests{grid-template-columns:1fr}.digest{padding:23px}.digest h3{font-size:18px}.digest p{font-size:14px}.faq-grid{grid-template-columns:1fr}.faq-grid summary{font-size:15px}.observation{grid-template-columns:40px 1fr;gap:13px;padding:27px 0}.observation h3{font-size:20px}.observation .article-number{font-size:31px;letter-spacing:-2px}.observation .article-body{columns:1}.about-grid{grid-template-columns:1fr;gap:15px}.about-grid h2{font-size:24px}.about-grid img{max-width:440px;margin:auto;display:block}.footer-top{display:block}.footer-nav{margin-top:30px;grid-template-columns:repeat(2,1fr);gap:14px}.footer-bottom{display:block;line-height:2}.footer-bottom span{display:block;margin-top:5px}.subhero h1{font-size:30px}.subhero .hero-grid{padding:30px 0}.subhero .hero-art{max-height:230px}.subhero .hero-art img{max-height:230px}.article-toc{grid-template-columns:1fr;padding:24px 0;gap:10px}.article-toc a{padding:15px}.feature-grid{grid-template-columns:1fr 1fr;gap:10px}.feature{padding:17px}.feature h3{font-size:15px}.download-status{grid-template-columns:1fr;gap:12px}.download-status>div{padding:20px}.calc-fields{grid-template-columns:1fr 1fr}.calc-results{gap:8px}.calc-results>div{padding:10px}.calc-results strong{font-size:20px}.lab{padding:20px}.actions{gap:10px}.btn{padding:12px 16px;gap:16px;font-size:13px}.back-top{right:12px;bottom:13px;width:39px;height:39px}.article-body blockquote{padding:16px 19px;margin:23px 0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
@media print{.site-header,.hero .console,.back-top,.nav-toggle,.interactive-only{display:none!important}.hero,.observations,.site-footer{background:white;color:black}.hero p,.observations .article-body{color:#333}.wrap{width:100%}.article-layout{display:block}.article-side{display:none}.longform{break-inside:auto}.article-main h2{break-after:avoid}.article-figure{break-inside:avoid}details>p{display:block!important}.faq-grid,.digests{display:block}.digest{margin-bottom:15px}.article-body{font-size:11pt}.section{padding:25px 0}a{color:#000}}
.diagram-scroll{max-width:100%;overflow-x:auto;overscroll-behavior-x:contain}.mobile-diagram-note{display:none}.diagram-scroll:focus-visible{outline:3px solid #e08a29;outline-offset:-3px}@media(max-width:767px){.diagram-scroll img{min-width:900px}.mobile-diagram-note{display:inline}.trend-svg text{font-size:25px}}