@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Manrope:wght@400;500;600;700;800&display=swap');
:root{--bg:#f3f7f8;--paper:#fff;--ink:#172d36;--muted:#6d8087;--line:#dae6e8;--cyan:#179fa5;--deep:#08747c;--coral:#ed8059}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Manrope,"PingFang SC","Microsoft YaHei",sans-serif;font-size:14px;line-height:1.75}.topbar{height:72px;background:#fff;border-bottom:1px solid var(--line);padding:0 42px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:10}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink)}.brand .mark{background:var(--coral);color:white;font:500 13px 'DM Mono';padding:7px 5px;border-radius:5px}.brand b{display:block;font-size:15px;letter-spacing:.04em}.brand small{display:block;color:#8c9da2;font-size:11px;margin-top:-4px}.actions{display:flex;align-items:center;gap:20px}.actions a{color:var(--deep);font-size:12px;font-weight:800;text-decoration:none}.actions .download{border:1px solid var(--cyan);padding:7px 12px;border-radius:5px}.shell{max-width:1500px;margin:auto;display:flex}.sidebar{width:260px;flex:0 0 260px;position:sticky;top:72px;height:calc(100vh - 72px);padding:30px 19px;background:#f8fafb;border-right:1px solid var(--line);display:flex;flex-direction:column}.side-title{padding:0 10px 18px;font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.side-title button{display:none;float:right;border:0;background:none;font-size:23px}.search{height:39px;background:#fff;border:1px solid var(--line);border-radius:6px;padding:0 10px;display:flex;align-items:center;color:#87a0a5;font-size:21px;margin-bottom:19px}.search input{width:100%;border:0;outline:0;background:none;font:12px Manrope;color:var(--ink);margin-left:5px}.sidebar nav{overflow:auto}.sidebar nav a{display:block;color:#60767d;text-decoration:none;font-size:12px;padding:6px 10px;border-radius:5px}.sidebar nav a:hover,.sidebar nav a.active{background:#e2f3f3;color:var(--deep);font-weight:800}.side-foot{margin-top:auto;border-top:1px solid var(--line);padding:18px 10px;color:#95a6ab;font-size:10px;line-height:1.6}.side-foot b{color:#50747a}.main{width:100%;max-width:1050px;margin:auto;padding:55px 74px 0}.hero{background:#fff;border-radius:13px;padding:54px 56px 30px;box-shadow:0 18px 60px #17464b0d;position:relative;overflow:hidden}.hero:after{content:'AT';position:absolute;right:38px;bottom:-44px;color:#edf5f5;font:800 180px Manrope;line-height:1}.kicker,.label{font:500 10px 'DM Mono';letter-spacing:.15em;color:var(--deep);text-transform:uppercase}.hero h1{font-size:48px;letter-spacing:-.06em;line-height:1.13;margin:18px 0 14px;position:relative;z-index:1}.hero h1 em{font-style:normal;color:var(--cyan)}.hero p{max-width:640px;color:var(--muted);margin:0 0 26px;position:relative;z-index:1}.hero-actions{display:flex;gap:10px;position:relative;z-index:1}.btn{border:1px solid var(--line);padding:10px 17px;color:var(--ink);font-size:12px;font-weight:800;text-decoration:none;border-radius:5px}.btn.primary{background:var(--cyan);border-color:var(--cyan);color:#fff;box-shadow:0 8px 20px #179fa533}.meta{border-top:1px solid var(--line);margin-top:40px;padding-top:16px;display:flex;gap:21px;color:#819399;font-size:10px;position:relative;z-index:1}.meta i{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--cyan);margin-right:7px}.stats{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:9px;margin:20px 0 62px;overflow:hidden}.stats div{padding:18px 20px;border-right:1px solid var(--line)}.stats div:last-child{border:0}.stats b{font-size:17px;color:var(--deep);display:block}.stats span{font-size:10px;color:var(--muted)}.section{padding-bottom:65px;scroll-margin-top:98px}.section .label{color:#91a5aa;margin-bottom:8px}.section h2{font-size:30px;letter-spacing:-.045em;line-height:1.2;margin:0 0 13px}.section>p,.lead{color:var(--muted);font-size:13px}.lead{font-size:14px;max-width:800px}.cards{display:grid;gap:13px;margin-top:22px}.cards.three{grid-template-columns:repeat(3,1fr)}.cards.two{grid-template-columns:repeat(2,1fr)}.cards article{background:#fff;border:1px solid var(--line);border-radius:8px;padding:19px}.cards h3{font-size:14px;margin:7px 0}.cards p{font-size:12px;color:var(--muted);margin:0}.num{font:500 11px 'DM Mono';color:var(--cyan)}code,pre{font-family:'DM Mono',monospace}code{background:#eaf6f6;color:var(--deep);padding:2px 5px;border-radius:3px;font-size:.9em}pre{background:#162b33;color:#d5f2ef;padding:13px 15px;border-radius:5px;font-size:10px;white-space:pre-wrap;overflow:auto;margin:10px 0}.notice{background:#eef9f8;border-left:3px solid var(--cyan);border-radius:6px;padding:13px 16px;display:flex;gap:15px;margin-top:23px;font-size:11px;color:#3b7175}.notice b{white-space:nowrap}.command-chips{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:0 20px;margin-top:19px}.command-chips code{justify-self:start;margin:4px 0;font-size:11px}.command-chips span{color:var(--muted);font-size:12px;border-bottom:1px solid var(--line);padding:7px 0}.table{border-top:1px solid var(--line);margin-top:18px}.table div{display:grid;grid-template-columns:190px 1fr;padding:11px 0;border-bottom:1px solid var(--line);font-size:12px}.table b{font-family:'DM Mono';color:var(--deep);font-weight:500}.table span{color:var(--muted)}.network-highlight{display:grid;grid-template-columns:repeat(4,1fr);gap:11px;margin:22px 0}.network-highlight div{background:#fff;border:1px solid var(--line);padding:15px;border-radius:7px}.network-highlight strong{display:block;font:500 11px 'DM Mono';color:var(--deep)}.network-highlight span{display:block;color:var(--muted);font-size:10px;margin-top:4px}.subheading{font-size:16px;margin:28px 0 8px}.pdf-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px;display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--ink);margin-top:22px}.pdf-card:hover{border-color:var(--cyan)}.pdf-card>span{background:#fff0e9;color:#d36e45;border-radius:4px;padding:7px 5px;font:500 10px 'DM Mono'}.pdf-card div{flex:1}.pdf-card b{display:block;font-size:13px}.pdf-card small{display:block;color:var(--muted);font-size:10px}.pdf-card>strong{color:var(--cyan);font-size:21px}.copyright{font-size:10px!important;color:#99aaae!important;margin-top:18px}.copyright code{background:none;color:#8a9da1;padding:0}footer{border-top:1px solid var(--line);color:#99aaae;font-size:10px;padding:25px 0 40px}.mobile-nav{display:none}.quick-list{border-top:1px solid var(--line);margin-top:22px}.quick-item{display:grid;grid-template-columns:34px 175px 145px 1fr 47px;align-items:center;gap:10px;border-bottom:1px solid var(--line);padding:11px 0;font-size:11px}.quick-item>span{font:500 10px 'DM Mono';color:#9aaeb1}.quick-item code{justify-self:start;font-size:10px}.quick-item b{font-size:11px}.quick-item small{font-size:10px;color:var(--muted)}.quick-item button{border:0;background:#eaf6f6;color:var(--deep);border-radius:3px;font:10px Manrope;font-weight:700;padding:5px;cursor:pointer}@media(max-width:900px){.topbar{padding:0 20px}.actions{gap:10px}.actions a{font-size:10px}.sidebar{position:fixed;z-index:20;left:-275px;top:0;height:100vh;transition:left .25s;box-shadow:10px 0 35px #0002}.sidebar.open{left:0}.side-title button{display:block}.main{padding:25px 20px}.mobile-nav{display:block;background:#fff;border:1px solid var(--line);color:var(--deep);border-radius:5px;padding:7px 11px;font-weight:800;margin-bottom:14px}.mobile-nav span{font-size:11px}.hero{padding:35px 25px 25px}.hero h1{font-size:37px}.hero:after{font-size:120px;right:-8px}.stats{margin-bottom:45px}.cards.three{grid-template-columns:1fr 1fr}.network-highlight{grid-template-columns:repeat(3,1fr)}.quick-item{grid-template-columns:28px 1fr 85px 48px}.quick-item small{display:none}}@media(max-width:560px){.actions a:first-child{display:none}.hero h1{font-size:34px}.meta{flex-wrap:wrap;gap:4px 15px}.stats{grid-template-columns:1fr 1fr}.stats div:nth-child(2){border-right:0}.stats div:nth-child(-n+2){border-bottom:1px solid var(--line)}.cards.three,.cards.two,.network-highlight{grid-template-columns:1fr}.table div{grid-template-columns:145px 1fr}.quick-item{grid-template-columns:25px 1fr 42px}.quick-item b{display:none}}