:root{--navy:#0c3d62;--navy-2:#075984;--ink:#142638;--muted:#6f7f8f;--line:#dce7ef;--paper:#f4f8fb;--white:#fff;--blue:#137db5;--cyan:#32b9c6;--green:#118d72;--red:#bd3747;--shadow:0 18px 46px rgba(23,61,91,.11)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(180deg,#f5fbff 0,#f4f8fb 760px,#f7f9fb 100%);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}.wrap{width:min(1160px,calc(100% - 40px));margin:auto}.topbar{height:72px;background:var(--navy);color:#fff}.topbar-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:11px}.brand-mark{width:40px;height:40px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.28);border-radius:50%;background:rgba(255,255,255,.08);font-size:14px;font-weight:900}.brand strong{display:block;font-size:16px}.brand small{display:block;margin-top:1px;color:#a9d5e9;font-size:8px;letter-spacing:.13em}.back-home{color:#d8edf7;font-size:13px}.back-home:hover{color:#fff}.page{padding:52px 0 82px}.hero-card{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:54px;overflow:hidden;padding:54px 58px;border-radius:28px;background:linear-gradient(125deg,#073653 0,#075983 58%,#08719a 100%);color:#fff;box-shadow:0 28px 70px rgba(8,61,96,.24)}.hero-card:before,.hero-card:after{content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.05)}.hero-card:before{width:360px;height:360px;right:-120px;top:-180px}.hero-card:after{width:210px;height:210px;right:260px;bottom:-150px}.hero-copy,.release-card{position:relative;z-index:1}.eyebrow{display:flex;align-items:center;gap:10px;margin:0 0 17px;color:#88dbf3;font-size:11px;font-weight:800;letter-spacing:.17em}.eyebrow:before{content:"";width:26px;height:2px;background:#46c9dc}.hero-card h1{max-width:700px;margin:0;font-size:clamp(37px,4.9vw,60px);line-height:1.13;letter-spacing:-.05em}.hero-lead{max-width:690px;margin:19px 0 0;color:#d1e8f3;font-size:15px;line-height:1.85}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.primary-button,.ghost-button,.final-button{display:inline-flex;min-height:48px;align-items:center;justify-content:center;padding:0 20px;border-radius:12px;font-weight:800;transition:transform .2s,background .2s}.primary-button{background:#fff;color:#083e61;box-shadow:0 12px 28px rgba(0,0,0,.15)}.ghost-button{border:1px solid rgba(255,255,255,.23);background:rgba(255,255,255,.08);color:#fff}.primary-button:hover,.ghost-button:hover,.final-button:hover{transform:translateY(-2px)}.release-card{align-self:center;padding:25px;border:1px solid rgba(255,255,255,.14);border-radius:19px;background:rgba(255,255,255,.1);backdrop-filter:blur(12px)}.release-card>span{color:#8fd8ed;font-size:10px;letter-spacing:.14em}.release-card>strong{display:block;margin:10px 0 19px;font-size:22px}.release-card>strong b{font-weight:900}.release-card dl{display:grid;gap:9px;margin:0}.release-card dl div{display:flex;justify-content:space-between;gap:15px;font-size:12px}.release-card dt{color:#add5e6}.release-card dd{margin:0;text-align:right;font-weight:700;overflow-wrap:anywhere}
.notice{display:grid;grid-template-columns:42px 1fr;gap:17px;margin-top:22px;padding:24px 27px;border:1px solid;border-radius:18px;box-shadow:var(--shadow)}.notice-icon{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;color:#fff;font-weight:900}.notice h2{margin:1px 0 8px;font-size:18px}.notice p{margin:0;color:#456070;font-size:13px;line-height:1.85}.notice p+p{margin-top:7px}.safe-notice{border-color:#bfe3dc;background:#effaf7}.safe-notice .notice-icon{background:var(--green)}.safe-notice h2{color:#08705c}.warning-notice{border-color:#f0ced3;background:#fff5f6}.warning-notice .notice-icon{background:var(--red)}.warning-notice h2{color:#922d3a}.warning-notice p{color:#744b52}
.section{margin-top:50px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:19px}.section-heading p{margin:0 0 5px;color:var(--blue);font-size:11px;font-weight:900;letter-spacing:.15em}.section-heading h2{margin:0;font-size:28px;letter-spacing:-.035em}.section-heading>span{color:var(--muted);font-size:12px}.verify-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.verify-grid article{min-width:0;padding:20px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow)}.verify-grid span,.hash-card span{display:block;color:var(--muted);font-size:11px}.verify-grid strong{display:block;margin-top:8px;overflow-wrap:anywhere;font-size:15px}.verify-grid small{display:block;margin-top:5px;color:#8b98a5}.hash-card{display:flex;align-items:center;justify-content:space-between;gap:22px;margin-top:13px;padding:18px 20px;border:1px solid #b9ddea;border-radius:15px;background:#effaff}.hash-card>div{min-width:0}.hash-card code{display:block;margin-top:8px;overflow-wrap:anywhere;color:#0c4a6d;font:700 12px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace}.hash-card button{flex:0 0 auto;height:38px;padding:0 13px;border:1px solid #b8d7e4;border-radius:9px;background:#fff;color:#17688e;font-size:12px;font-weight:800;cursor:pointer}.hash-card button:hover{background:#e3f4fa}.hash-card.certificate{border-color:#d6dcea;background:#f7f8fc}.hash-card.certificate code{color:#43526a}
.permission-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.permission-grid article{display:flex;gap:13px;padding:20px;border:1px solid var(--line);border-radius:17px;background:#fff;box-shadow:var(--shadow)}.permission-grid article>span{width:34px;height:34px;display:grid;flex:0 0 auto;place-items:center;border-radius:10px;background:#e9f4fb;color:#0874ae;font-weight:900}.permission-grid .permission-good>span{background:#e8f8f2;color:#13876e}.permission-grid strong{font-size:14px}.permission-grid p{margin:5px 0 0;color:var(--muted);font-size:12px;line-height:1.7}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.steps article{min-height:168px;padding:20px;border:1px solid var(--line);border-radius:17px;background:#fff;box-shadow:var(--shadow)}.steps b{width:29px;height:29px;display:grid;place-items:center;border-radius:8px;background:#0c7db6;color:#fff}.steps strong{display:block;margin-top:18px;font-size:15px}.steps p{margin:7px 0 0;color:var(--muted);font-size:12px;line-height:1.7}
.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.guide-grid details{overflow:hidden;border:1px solid var(--line);border-radius:15px;background:#fff;box-shadow:0 9px 25px rgba(26,66,95,.06)}.guide-grid summary{display:flex;min-height:62px;align-items:center;gap:10px;padding:13px 16px;list-style:none;cursor:pointer}.guide-grid summary::-webkit-details-marker{display:none}.brand-chip{display:inline-flex;min-width:39px;height:29px;align-items:center;justify-content:center;padding:0 8px;border-radius:8px;background:#0b78b2;color:#fff;font-size:11px;font-weight:800}.danger-chip{background:#b53e4a}.guide-grid summary strong{font-size:14px}.guide-grid summary i{position:relative;width:24px;height:24px;margin-left:auto;border-radius:50%;background:#edf6fa}.guide-grid summary i:before,.guide-grid summary i:after{content:"";position:absolute;top:11px;left:7px;width:10px;height:2px;background:#3880a4}.guide-grid summary i:after{transform:rotate(90deg);transition:transform .2s}.guide-grid details[open] summary i:after{transform:rotate(0)}.guide-grid ol{margin:0;padding:0 25px 18px 52px;color:#536b7b;font-size:12px;line-height:1.8}.guide-grid li+li{margin-top:6px}
.final-cta{display:flex;align-items:center;justify-content:space-between;gap:28px;margin-top:46px;padding:30px 34px;border-radius:20px;background:linear-gradient(120deg,#073a5e,#08729d);color:#fff;box-shadow:0 22px 50px rgba(7,69,104,.22)}.final-cta h2{margin:0 0 7px;font-size:22px}.final-cta p{margin:0;color:#c5e1ee;font-size:12px}.final-button{flex:0 0 auto;background:#fff;color:#094664}.copy-toast{position:fixed;left:50%;bottom:28px;z-index:10;transform:translateX(-50%);padding:10px 16px;border-radius:10px;background:#12283a;color:#fff;box-shadow:0 10px 30px rgba(0,0,0,.2);font-size:13px}footer{border-top:1px solid var(--line);background:#fff;color:#8b98a4;font-size:11px}footer .wrap{display:flex;justify-content:space-between;gap:20px;padding:25px 0 35px}
@media(max-width:900px){.hero-card{grid-template-columns:1fr;gap:28px}.release-card{width:100%}.permission-grid{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr}}
@media(max-width:680px){.wrap{width:min(100% - 26px,1160px)}.topbar{height:66px}.back-home{font-size:12px}.page{padding:24px 0 54px}.hero-card{padding:31px 23px;border-radius:21px}.hero-card h1{font-size:37px}.hero-lead{font-size:13px}.hero-actions{display:grid}.primary-button,.ghost-button{width:100%}.notice{grid-template-columns:32px 1fr;padding:20px 17px}.notice-icon{width:30px;height:30px}.notice h2{font-size:16px}.section{margin-top:38px}.section-heading{display:block}.section-heading h2{font-size:24px}.section-heading>span{display:block;margin-top:8px}.verify-grid,.steps,.guide-grid{grid-template-columns:1fr}.hash-card{display:block}.hash-card button{width:100%;margin-top:14px}.final-cta{display:block;padding:26px 22px;text-align:center}.final-button{width:100%;margin-top:19px}footer .wrap{display:block;text-align:center}footer .wrap span{display:block;margin-top:6px}}