:root{color-scheme:dark;--bg:#07131c;--panel:#0d202d;--line:#284151;--text:#edf5f8;--muted:#afc3ce;--accent:#80ddf3}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%}a:focus-visible,button:focus-visible{outline:3px solid var(--accent);outline-offset:6px}a:hover{color:var(--accent)}.container{width:min(1200px,calc(100% - 80px));margin:auto}.navbar{position:sticky;top:0;z-index:20;background:#07131cf2;border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.nav-container{min-height:86px;display:flex;align-items:center;justify-content:space-between;gap:30px}.logo-link{display:flex;align-items:center;gap:13px}.logo-img{width:44px;height:44px;object-fit:contain}.logo-text{font-size:14px;font-weight:750;letter-spacing:.12em}.nav-links{display:flex;list-style:none;gap:30px;padding:0;margin:0;font-size:14px}.mobile-menu-btn{display:none}.hero{position:relative;overflow:hidden;background:radial-gradient(ellipse at 80% 40%,#133a4a 0,transparent 55%)}.hero:before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.3;background-image:radial-gradient(1px 1px at 18% 20%,white 98%,transparent),radial-gradient(1px 1px at 62% 68%,white 98%,transparent),radial-gradient(1px 1px at 85% 42%,white 98%,transparent);background-size:170px 190px,230px 250px,310px 270px}.hero-content{position:relative;min-height:620px;display:grid;grid-template-columns:1.25fr 1fr;align-items:center;gap:50px;padding-block:70px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.2em;color:var(--accent);margin:0 0 22px}.hero h1{font-size:clamp(40px,4.5vw,66px);font-weight:760;line-height:1.25;letter-spacing:-.04em;margin:0 0 24px}.hero h1 span{color:var(--accent)}.subtitle{font-size:16px;font-weight:600;letter-spacing:.06em}.hero-description{font-size:16px;color:var(--muted);margin:20px 0 30px;line-height:1.9}.hero-buttons{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:25px;min-height:50px;padding:12px 24px;border:1px solid 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var(--line)}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:36px}.section-heading .eyebrow{margin-bottom:14px}.section-title{font-size:32px;line-height:1.4;letter-spacing:-.03em;margin:0 0 32px}.section-heading .section-title{margin:0}.section-title span{font-size:11px;color:var(--muted);letter-spacing:.16em;display:block;margin-top:8px}.section-heading>p,.section-subtitle{color:var(--muted);font-size:14px;margin:0}.tool-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.tool-card{display:flex;flex-direction:column;padding:30px;border:1px solid var(--line);border-radius:6px;background:linear-gradient(135deg,#112937,#0b1b27);transition:border-color .15s,background .15s}.tool-card:hover{border-color:var(--accent);color:var(--text);background:#142f3d}.tool-top{display:flex;justify-content:space-between;align-items:center;color:var(--accent);font-size:10px;letter-spacing:.14em}.tool-arrow{font-size:25px}.tool-card 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70px}.grid-links{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.grid-link{padding:22px;background:var(--panel);border:1px solid var(--line);border-radius:5px;font-size:14px;color:var(--muted)}.grid-link span{display:block;color:var(--text);font-size:19px;font-weight:650}.footer{border-top:1px solid var(--line);padding:35px 0;color:var(--muted);font-size:11px}.footer-info{display:flex;justify-content:space-between;gap:25px;align-items:center}.footer-copyright p{margin:4px 0}.gongan-icon{width:16px;height:16px;vertical-align:middle;margin-right:7px}.skip-link{position:fixed;left:20px;top:-100px;padding:12px 20px;background:var(--accent);color:#07131c;z-index:100}.skip-link:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
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@media(max-width:600px){html{scroll-padding-top:90px}.nav-container{min-height:72px;flex-wrap:wrap;gap:0}.logo-img{width:35px;height:35px}.logo-text{font-size:11px}.mobile-menu-btn{display:none;background:transparent;border:1px solid var(--line);border-radius:4px;color:var(--text);padding:8px 12px;min-height:44px}.js .mobile-menu-btn{display:block}.nav-links{display:flex;flex-basis:100%;justify-content:space-between;padding:14px 0 20px}.js .nav-links{display:none}.js .nav-links.active{display:flex}.hero-content{grid-template-columns:1fr;gap:30px;padding:48px 0 44px;min-height:0}.hero h1{font-size:40px}.hero-description{font-size:14px}.hero-image-area{width:200px;justify-self:center}.orbit-label{font-size:8px}.section{padding:50px 0}.section-heading{display:block;margin-bottom:26px}.section-heading>p{margin-top:18px}.section-title{font-size:27px}.section-heading>p br{display:none}.tool-grid{grid-template-columns:1fr;gap:14px}.tool-card{padding:24px}.tool-card h3{font-size:25px;margin-top:16px}.external-tools{gap:12px 22px}.external-tools>span{flex-basis:100%}.about-grid,.join-content{grid-template-columns:1fr;gap:25px}.about-text p{font-size:14px}.info-item{grid-template-columns:100px 1fr}.footer-info{display:block}.footer-icp{margin-top:20px}.btn{padding:12px 18px}.bottom-sections .section{padding-bottom:50px}.grid-link{padding:18px}.tool-bottom{font-size:11px}}
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