:root{--ink:#122033;--muted:#5e6b7b;--blue:#174b7a;--blue2:#246ba4;--sky:#eaf4fb;--line:#d9e1e8;--paper:#fff;--off:#f5f7f9;--navy:#0e2438;--green:#4fd09a;--shadow:0 20px 55px rgba(14,36,56,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}body{margin:0;color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:var(--paper);line-height:1.7}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button,select{font:inherit}.container{width:min(1160px,calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.93);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,225,232,.8)}.nav{height:72px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:800;letter-spacing:-.02em}.brand-icon{width:34px;height:34px;display:grid;place-items:center;background:var(--blue);color:white;border-radius:6px;font-family:Georgia,serif;font-size:23px;box-shadow:5px 5px 0 #b5d3ea}.brand-cn{display:block;color:#738196;font-size:10px;font-weight:600;letter-spacing:.08em}.nav-links{display:flex;align-items:center;gap:28px;font-size:14px;font-weight:650}.nav-links a{color:#445164}.nav-links a:hover{color:var(--blue)}.nav-download{padding:9px 17px;background:var(--blue);color:#fff!important;border-radius:6px}.menu-toggle{display:none;border:1px solid var(--line);background:#fff;padding:8px 12px;border-radius:5px;color:var(--ink)}
.hero{position:relative;overflow:hidden;padding:96px 0 86px;background:linear-gradient(120deg,#f7fafc 0 55%,#edf5fa 55%)}.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(23,75,122,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(23,75,122,.04) 1px,transparent 1px);background-size:40px 40px;mask-image:linear-gradient(90deg,transparent,#000)}.hero-grid{position:relative;display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--blue2);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 5px rgba(79,208,154,.15)}h1,h2,h3,p{margin-top:0}h1{margin:20px 0 23px;font-size:clamp(44px,5.5vw,76px);line-height:1.05;letter-spacing:-.055em}h1 em{color:var(--blue);font-style:normal}.lead{max-width:590px;color:var(--muted);font-size:18px;line-height:1.9}.hero-actions{display:flex;gap:12px;margin:31px 0}.btn{min-height:47px;display:inline-flex;align-items:center;justify-content:center;padding:11px 20px;border-radius:6px;font-size:14px;font-weight:800;transition:.2s}.btn-primary{color:#fff;background:var(--blue);box-shadow:0 8px 18px rgba(23,75,122,.2)}.btn-primary:hover{background:#0f3d67;transform:translateY(-1px)}.btn-secondary{border:1px solid #b9c8d5;background:#fff}.btn-secondary:hover{border-color:var(--blue);color:var(--blue)}.btn-disabled{color:#8190a1;background:#eef1f4;border:1px solid #dce3e9;cursor:not-allowed}.hero-facts{display:flex;gap:0;list-style:none;margin:38px 0 0;padding:0}.hero-facts li{padding:0 26px;border-left:1px solid var(--line)}.hero-facts li:first-child{padding-left:0;border:0}.hero-facts strong,.hero-facts span{display:block}.hero-facts strong{font-size:19px}.hero-facts span{font-size:11px;color:var(--muted)}.hero-visual{position:relative;padding:18px 0 20px}.hero-visual>img{width:100%;filter:drop-shadow(0 30px 38px rgba(23,48,73,.2))}.visual-label{position:absolute;z-index:2;top:0;right:15px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:6px 12px;font-size:11px;color:var(--muted)}.terminal-card{position:absolute;right:-8px;bottom:-4px;display:flex;align-items:center;gap:12px;min-width:270px;padding:14px 16px;background:#0d1b29;color:#fff;border:1px solid #324455;border-radius:7px;box-shadow:var(--shadow)}.terminal-symbol{display:grid;place-items:center;width:33px;height:33px;background:#18344c;border-radius:5px;color:#66e0ad;font-weight:800}.terminal-card div{flex:1}.terminal-card strong,.terminal-card small{display:block}.terminal-card strong{font-size:12px}.terminal-card small{color:#91a7b9;font-size:10px}.terminal-ok{font-size:9px;color:#65dca9;text-transform:uppercase}
.trust-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}.trust-grid div{padding:22px 28px;border-left:1px solid var(--line)}.trust-grid div:last-child{border-right:1px solid var(--line)}.trust-grid span,.trust-grid strong{display:block}.trust-grid span{color:var(--muted);font-size:11px}.trust-grid strong{font-size:14px}
section{padding:96px 0}.section-head{display:grid;grid-template-columns:1fr .75fr;gap:60px;align-items:end;margin-bottom:46px}.section-head h2{max-width:680px;margin:11px 0 0;font-size:clamp(34px,4vw,52px);line-height:1.15;letter-spacing:-.04em}.section-head>p{margin:0;color:var(--muted);font-size:15px}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.feature-card{position:relative;min-height:285px;padding:30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}.feature-card.featured{background:var(--sky)}.card-no{position:absolute;right:22px;top:18px;color:#a6b2bf;font-size:11px;font-weight:800}.feature-symbol{height:54px;color:var(--blue);font-family:Consolas,monospace;font-size:34px;font-weight:800}.feature-card h3{margin:20px 0 10px;font-size:20px}.feature-card p{color:var(--muted);font-size:14px}.feature-card>a,.text-link{color:var(--blue);font-size:13px;font-weight:800}
.dark-section{background:var(--navy);color:#fff}.section-head.light>p{color:#a9bbca}.section-head.light .eyebrow{color:#67dcb0}.toolkit-grid{display:grid;grid-template-columns:repeat(5,1fr);border:1px solid #2c4356}.toolkit-grid article{min-height:235px;padding:27px 23px;border-right:1px solid #2c4356;background:linear-gradient(180deg,rgba(255,255,255,.025),transparent)}.toolkit-grid article:last-child{border:0}.toolkit-grid article>span{display:inline-grid;place-items:center;width:32px;height:32px;border:1px solid #426178;color:#67dcb0;font-size:11px}.toolkit-grid h3{margin:45px 0 10px;font-size:19px}.toolkit-grid p{color:#a9bbca;font-size:13px}
.tutorial-grid{display:grid;grid-template-columns:1.25fr .75fr .75fr;gap:14px}.tutorial-card{min-height:220px;padding:26px;border:1px solid var(--line);border-radius:7px;background:#fff;transition:.2s}.tutorial-card:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(23,48,73,.09);border-color:#b6cddd}.tutorial-card>span{color:var(--blue2);font-size:10px;font-weight:800;letter-spacing:.08em}.tutorial-card h3{margin:17px 0 10px;font-size:19px;line-height:1.45}.tutorial-card p{color:var(--muted);font-size:13px}.tutorial-main{grid-row:span 2;min-height:454px;padding:34px;background:linear-gradient(155deg,#eaf4fb,#f9fcfe)}.tutorial-main:before{content:"GUIDE";display:block;margin:46px 0 64px;color:rgba(23,75,122,.09);font-size:70px;font-weight:900;line-height:1}.tutorial-main h3{font-size:28px}
.wizard-section{background:var(--off)}.wizard-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:90px;align-items:center}.wizard-copy h2{margin:14px 0 20px;font-size:46px;line-height:1.12;letter-spacing:-.04em}.wizard-copy p{color:var(--muted)}.safe-note{margin-top:28px;padding:14px 16px;border-left:3px solid var(--green);background:#fff;font-size:12px;color:#506071}.wizard-card{padding:30px;background:#fff;border:1px solid var(--line);border-radius:7px;box-shadow:var(--shadow)}#connectionWizard{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}#connectionWizard label{font-size:11px;font-weight:750;color:#5b6979}select{width:100%;margin-top:7px;padding:12px 34px 12px 12px;color:var(--ink);background:#f8fafb;border:1px solid var(--line);border-radius:5px}.wizard-result{margin-top:22px;padding:22px;background:var(--navy);color:#fff;border-radius:6px}.wizard-result strong{font-size:13px}.wizard-result ol{margin:13px 0 0;padding-left:22px;color:#b9c7d2;font-size:12px}.wizard-result li+li{margin-top:7px}
.version-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.version-card{min-height:235px;padding:25px;border:1px solid var(--line);border-radius:7px;background:#fff}.version-card.recommended{border-color:var(--blue);box-shadow:inset 0 4px 0 var(--blue)}.version-card .badge{display:inline-block;padding:4px 8px;background:var(--sky);color:var(--blue);border-radius:3px;font-size:10px;font-weight:800}.version-card h3{margin:30px 0 9px;font-family:Consolas,monospace;font-size:23px}.version-card p{min-height:72px;color:var(--muted);font-size:13px}.version-card strong{font-size:12px}
.download{background:linear-gradient(110deg,#153f68,#102c48);color:#fff}.download-box{display:grid;grid-template-columns:1.25fr .75fr;gap:90px;align-items:center}.download .eyebrow{color:#68dfb2}.download h2{margin:13px 0 18px;font-size:50px;letter-spacing:-.04em}.download-copy>p{max-width:680px;color:#c1d0dd}.download-copy ul{display:flex;flex-wrap:wrap;gap:10px 25px;padding:0;list-style:none;color:#a9bdcf;font-size:11px}.download-copy li:before{content:"✓";margin-right:7px;color:#68dfb2}.download-panel{padding:26px;background:#fff;color:var(--ink);border-radius:7px}.download-panel>div{padding-bottom:17px;border-bottom:1px solid var(--line)}.download-panel span,.download-panel strong,.download-panel small{display:block}.download-panel span{font-size:10px;color:var(--muted)}.download-panel strong{font-size:26px}.download-panel small{color:#708091;font-size:10px}.download-panel .btn{width:100%;margin-top:12px}.download-panel>small{margin-top:14px;line-height:1.6}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-left:1px solid var(--line)}details{padding:23px 26px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}summary{position:relative;padding-right:30px;cursor:pointer;font-size:15px;font-weight:800;list-style:none}summary:after{content:"+";position:absolute;right:0;color:var(--blue);font-size:20px}details[open] summary:after{content:"−"}details p{margin:14px 0 0;color:var(--muted);font-size:13px}
.site-footer{padding:65px 0 22px;background:#091b2a;color:#c4d0da}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:60px}.footer-brand{color:#fff}.footer-grid>div p{max-width:480px;margin:22px 0 0;color:#8499aa;font-size:12px}.footer-grid nav{display:flex;flex-direction:column;gap:9px;font-size:12px}.footer-grid nav strong{margin-bottom:6px;color:#fff}.footer-grid nav a{color:#92a6b6}.footer-bottom{display:flex;justify-content:space-between;margin-top:50px;padding-top:20px;border-top:1px solid #213646;color:#738a9b;font-size:10px}
.article-page{background:var(--off)}.article-hero{padding:70px 0 55px;background:#fff;border-bottom:1px solid var(--line)}.breadcrumbs{margin-bottom:25px;color:#718092;font-size:11px}.breadcrumbs a{color:var(--blue)}.article-hero h1{max-width:900px;margin:10px 0 22px;font-size:clamp(36px,5vw,58px)}.article-meta{display:flex;gap:20px;color:#758496;font-size:11px}.article-layout{display:grid;grid-template-columns:minmax(0,760px) 280px;gap:70px;align-items:start;padding-top:55px;padding-bottom:80px}.article-content{padding:45px 50px;background:#fff;border:1px solid var(--line);border-radius:7px}.article-content h2{margin:40px 0 15px;font-size:27px;line-height:1.3}.article-content h2:first-child{margin-top:0}.article-content h3{margin:28px 0 10px;font-size:18px}.article-content p,.article-content li{color:#465568;font-size:15px}.article-content code{padding:2px 5px;background:#eef3f6;border-radius:3px;color:#174b7a}.article-note{margin:25px 0;padding:18px;border-left:3px solid var(--blue);background:var(--sky);color:#405266;font-size:13px}.article-nav{display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:24px;border-top:1px solid var(--line);font-size:12px;font-weight:800;color:var(--blue)}.article-aside{position:sticky;top:95px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:7px}.article-aside strong{display:block;margin-bottom:14px}.article-aside a{display:block;padding:8px 0;border-bottom:1px solid #edf0f3;color:#59697a;font-size:12px}.simple-page{min-height:70vh;padding:70px 0}.simple-card{max-width:850px;margin:auto;padding:45px 50px;background:#fff;border:1px solid var(--line);border-radius:7px}.simple-card h1{font-size:46px}.simple-card h2{margin-top:34px}.simple-card p,.simple-card li{color:var(--muted)}
@media(max-width:980px){.hero-grid,.download-box,.wizard-wrap{grid-template-columns:1fr}.hero{padding-top:70px}.hero-visual{max-width:720px}.feature-grid{grid-template-columns:repeat(2,1fr)}.toolkit-grid{grid-template-columns:repeat(3,1fr)}.toolkit-grid article{border-bottom:1px solid #2c4356}.tutorial-grid{grid-template-columns:1fr 1fr}.tutorial-main{grid-row:auto;min-height:300px}.tutorial-main:before{margin:20px 0 28px}.version-grid{grid-template-columns:1fr 1fr}.article-layout{grid-template-columns:1fr}.article-aside{position:static}.section-head{grid-template-columns:1fr;gap:15px}.download-box{gap:35px}.wizard-wrap{gap:35px}}
@media(max-width:720px){.container{width:min(100% - 28px,1160px)}.nav{height:64px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:14px;right:14px;top:59px;flex-direction:column;align-items:stretch;gap:0;padding:12px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}.nav-links.open{display:flex}.nav-links a{padding:11px}.hero{padding:58px 0;background:#f7fafc}.hero-grid{gap:35px}h1{font-size:44px}.lead{font-size:16px}.hero-actions{flex-direction:column;align-items:stretch}.hero-facts{justify-content:space-between}.hero-facts li{padding:0 12px}.terminal-card{right:0;min-width:240px}.trust-grid{grid-template-columns:1fr 1fr}.trust-grid div{border-bottom:1px solid var(--line)}section{padding:70px 0}.section-head h2,.wizard-copy h2,.download h2{font-size:36px}.feature-grid,.tutorial-grid,.version-grid,.faq-grid{grid-template-columns:1fr}.feature-card{min-height:230px}.toolkit-grid{grid-template-columns:1fr 1fr}.toolkit-grid article{min-height:190px}.tutorial-main{min-height:280px}.tutorial-main:before{font-size:48px}#connectionWizard{grid-template-columns:1fr}.download-copy ul{display:block}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div{grid-column:1/-1}.article-content,.simple-card{padding:28px 22px}.article-layout{padding-top:28px;gap:25px}.article-meta{flex-wrap:wrap}.article-hero h1,.simple-card h1{font-size:38px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn,.tutorial-card{transition:none}}
body{overflow-x:hidden}.hero-grid>*{min-width:0}
.faq-grid{grid-template-columns:1fr}
@media(max-width:720px){.nav>*{min-width:0}.menu-toggle{flex:0 0 auto}.hero-facts{width:100%}.hero-facts li{flex:1;min-width:0;padding:0 8px;text-align:center}.hero-facts strong{font-size:17px}.hero-facts span{font-size:9px;white-space:normal}.hero-visual{min-width:0;width:100%}.hero-visual>img{width:100%;height:auto}.visual-label{right:4px;max-width:150px;white-space:nowrap}.terminal-card{right:0;min-width:0;width:min(250px,80%);padding:11px 12px}.terminal-card .terminal-ok{display:none}}