:root{--bg:#f5f1e8;--ink:#302d28;--muted:#777064;--gold:#a64d21;--line:#d8cbb8;--serif:Georgia,'Times New Roman',serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--ink);font-family:Arial,'PingFang SC','Microsoft YaHei',sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--gold);outline-offset:6px}p{line-height:1.85}h1,h2,h3,p,figure{margin:0}h1,h2{font-weight:500;letter-spacing:-.055em;line-height:1.28}h1{font-size:clamp(40px,4.3vw,68px)}h2{font-size:clamp(30px,3.1vw,46px)}h3{font-size:24px;font-weight:500}.gold{color:var(--gold)}.wrap{width:min(1240px,88%);margin:auto}.section{padding-top:110px;padding-bottom:110px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:600;color:var(--gold);margin-bottom:24px}.fine{font-size:12px;color:var(--muted);line-height:1.85}.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#a96f35;margin-right:8px}.skip{position:absolute;top:-100px;z-index:20;background:white;padding:15px}.skip:focus{top:0}header{height:88px;padding:0 6%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#f5f1e8f2;position:sticky;top:0;z-index:10;backdrop-filter:blur(16px)}.brand{font-size:25px;letter-spacing:3px;font-weight:700;position:relative;padding-left:48px}.brand img{width:38px;height:38px;object-fit:contain;position:absolute;left:0;top:0}.brand span{display:block;font-size:7px;letter-spacing:2px;margin-top:5px;color:#8b6e51}nav{display:flex;gap:32px;align-items:center;font-size:12px}nav a:hover,.text-link:hover{color:var(--gold)}.nav-cta{border:1px solid #bc9674;padding:12px 18px}.menu{display:none}.hero{position:relative;padding:80px 6% 0;overflow:hidden}.hero-copy{position:relative;z-index:2;width:52%;padding-bottom:60px;pointer-events:none}.hero-copy a{pointer-events:auto}.hero-sub{font-size:22px;margin:25px 0 16px;line-height:1.6;letter-spacing:2px}.intro{font-size:14px;color:var(--muted)}.actions{display:flex;gap:27px;align-items:center;margin-top:32px}.button{display:inline-flex;gap:30px;align-items:center;justify-content:center;padding:17px 24px;background:linear-gradient(120deg,#783d22,#b46c36);color:#fff9ef;font-size:13px;box-shadow:0 5px 14px #9b673522;transition:transform .2s}.button:hover{transform:translateY(-2px);background:#8e4c27}.text-link{font-size:13px;border-bottom:1px solid #bfa381;padding-bottom:7px}.stage{font-size:11px;margin-top:28px;color:#77624b}.stage-detail{border-left:1px solid var(--line);margin-left:10px;padding-left:10px;color:var(--muted)}.hero-art{position:absolute;right:-5%;top:15px;width:65%;height:590px;z-index:0}.hero-art:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,var(--bg) 1%,#f5f1e800 30%),linear-gradient(0deg,var(--bg),transparent 20%)}.hero-art img{width:100%;height:100%;object-fit:cover;mix-blend-mode:multiply}.hero-art figcaption{position:absolute;bottom:5px;right:17%;font-size:8px;color:#9b8060;letter-spacing:1px;z-index:1}.hero-art figcaption span{margin-left:20px}.hero-bottom{position:relative;z-index:2;border-top:1px solid var(--line);display:flex;justify-content:space-between;padding:24px 0;font-size:9px;letter-spacing:1.5px;color:var(--muted)}.stats{display:grid;grid-template-columns:repeat(4,1fr);padding:37px 0;border-bottom:1px solid var(--line)}.stats>div{padding-left:28px;border-left:1px solid var(--line)}.stats>div:first-child{padding-left:0;border:0}.stats strong{font:46px var(--serif);color:#935022;letter-spacing:-2px}.stats strong span{font:11px Arial;letter-spacing:0;margin-left:8px}.stats p{font-size:11px;color:var(--muted);margin-top:8px}.section-heading{display:flex;justify-content:space-between;gap:60px;align-items:flex-end;margin-bottom:50px}.section-intro{max-width:390px;font-size:14px;color:var(--muted)}.principles{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.principles article{padding:34px 34px 34px 0;position:relative}.principles article+article{padding-left:34px;border-left:1px solid var(--line)}.index{font-size:9px;letter-spacing:2px;color:#99724e}.principles h3{margin:24px 0 15px}.principles p{color:var(--muted);font-size:13px;min-height:75px}.small-label{display:block;font-size:10px;color:#9e6e42;margin-top:30px}.protocol-note{display:flex;gap:22px;align-items:center;margin-top:28px}.protocol-note>span{font-size:32px;color:#aa7649}.protocol-note p{font-size:12px;color:var(--muted)}.protocol-note b{font-weight:500;color:var(--ink)}.mining{background:#ede7dc;border-block:1px solid #e0d6c5}.steps{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid #cab99f}.steps button{cursor:pointer;background:none;border:0;color:#8b8071;padding:20px 10px;text-align:left;position:relative;font-size:14px}.steps button span{font:14px var(--serif);margin-right:15px}.steps button[aria-selected=true]{color:var(--gold)}.steps button[aria-selected=true]:after{content:'';position:absolute;bottom:-2px;height:3px;background:var(--gold);left:0;right:20%}.step-panel{display:grid;grid-template-columns:1fr 1fr;gap:70px;padding:50px 0;align-items:center}.chip-scene{min-height:300px;position:relative;display:flex;justify-content:center;align-items:center;overflow:hidden;background:repeating-linear-gradient(0deg,transparent 0 29px,#b8a17c19 29px 30px),repeating-linear-gradient(90deg,transparent 0 29px,#b8a17c19 29px 30px)}.chip{width:174px;height:174px;transform:rotate(-12deg);border:9px double #c6a66f;background:linear-gradient(135deg,#f9f6ee,#c09b61 4%,#e9dfca 9%,#fcfaf3 50%,#be8f4d);box-shadow:12px 16px 30px #7e653735,inset 0 0 0 5px #f6f1e5;display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:1;outline:2px solid #9d733e;outline-offset:5px}.chip span{font-size:10px;letter-spacing:3px;color:#986332}.chip strong{font:30px var(--serif);margin:13px 0;color:#8d4b22}.chip small{font-size:7px;letter-spacing:1px;color:#9e7952}.trace{position:absolute;width:110%;height:100px;border:4px double #b58d54;transform:rotate(-12deg)}.t2{height:140px}.t3{height:180px}.diagram-label{position:absolute;bottom:8px;font-size:8px;letter-spacing:2px;color:#9c8667}.step-copy h3{font-size:27px;margin-bottom:20px}.step-copy>p{font-size:14px;color:var(--muted);margin-bottom:20px}.step-copy .fine{font-size:11px}.pool{border-top:1px solid #d4c6b1;padding-top:35px;display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:center}.pool h3{font-size:20px}.pool .eyebrow{margin-bottom:12px}.pool-label{display:flex;justify-content:space-between;align-items:baseline;font-size:12px}.pool-label b{font:32px var(--serif);color:var(--gold)}.pool-label small{font:11px Arial;color:var(--muted)}.pool-bar{height:6px;background:#c5b59e;margin:13px 0}.pool-bar span{display:block;width:99%;height:100%;background:linear-gradient(90deg,#85451e,#c89552)}.optimization{display:grid;grid-template-columns:1fr 1fr;gap:100px}.optimization h2{margin-bottom:25px}.optimization p{font-size:14px;color:var(--muted)}.optimization .fine{font-size:11px}.formula{font:27px var(--serif);margin:28px 0;color:#925529}.formula span{display:block;font:10px Arial;margin-top:14px;color:var(--muted)}.cost-demo{padding:35px;border:1px solid #cbbb9e;background:#f9f6ee;box-shadow:12px 12px 0 #e9e1d3}.demo-heading{display:flex;justify-content:space-between;margin-bottom:35px;font-size:16px}.demo-heading small{font-size:10px;color:var(--muted)}.cost-demo label{display:flex;justify-content:space-between;font-size:12px;margin-top:20px}.cost-demo output{color:var(--gold);font:20px var(--serif)}input[type=range]{width:100%;accent-color:#a16131;margin:16px 0;cursor:pointer}.cost-result{border-top:1px solid var(--line);margin-top:20px;padding-top:25px;display:flex;justify-content:space-between;align-items:center}.cost-result span{font-size:12px}.cost-result strong{font:40px var(--serif);color:var(--gold)}.comparison{display:flex;justify-content:space-between;font-size:10px;margin:20px 0;color:var(--muted)}.comparison b{font-weight:500;color:var(--gold)}.bitweb{position:relative;display:grid;grid-template-columns:1fr 1fr;min-height:560px;background:#eee5d6;border-block:1px solid var(--line)}.bitweb>img{width:100%;height:100%;object-fit:cover;object-position:65%;mix-blend-mode:multiply}.bitweb-copy{padding:70px 12% 70px 10%;background:linear-gradient(90deg,#f5f1e8aa,var(--bg))}.bitweb-copy>p:not(.eyebrow){font-size:14px;color:var(--muted);margin-top:25px}.bitweb-copy .fine{font-size:11px!important}.web-flow{display:flex;gap:15px;font-size:11px;margin:30px 0;color:#975c2a}.web-flow i{font-style:normal;color:#b6a78f}.bitweb-copy .text-link{display:inline-block;margin-top:22px}.issuance{display:grid;grid-template-columns:1fr 1.2fr;gap:100px;border-bottom:1px solid var(--line)}.issuance h2{margin-bottom:20px}.issuance p{font-size:13px;color:var(--muted);margin-top:20px}.issuance .fine{font-size:11px}.supply{font:clamp(40px,4vw,62px) var(--serif);color:var(--gold);letter-spacing:-2px}.supply span{display:block;font:9px Arial;letter-spacing:2px;margin-top:8px;color:var(--muted)}.halving{display:flex;gap:20px;margin-top:35px;height:130px;align-items:end}.halving>div{height:100%;flex:1;display:flex;flex-direction:column;justify-content:end}.halving span{font:18px var(--serif);color:#925d30}.halving i{height:calc(var(--bar)*.7);min-height:10px;display:block;background:linear-gradient(90deg,#b7884f,#dfc293);margin:6px 0}.halving small{font-size:9px;color:var(--muted)}.start{display:grid;grid-template-columns:1fr 1fr;gap:80px}.start p{font-size:14px;color:var(--muted);margin:20px 0 28px}.start ol{list-style:none;counter-reset:steps;padding:0;margin:0}.start li{counter-increment:steps;position:relative;padding:25px 0 25px 55px;border-bottom:1px solid var(--line)}.start li:before{content:'0' counter(steps);position:absolute;left:0;font:23px var(--serif);color:#af8354}.start li b{display:block;font-size:16px;font-weight:500}.start li span{font-size:12px;color:var(--muted);display:block;margin-top:10px}.faq{border-top:1px solid var(--line);padding-top:75px;display:grid;grid-template-columns:1fr 1.5fr;gap:80px}.faq>div>p:last-child{font-size:13px;color:var(--muted);margin-top:20px}.faq details{border-bottom:1px solid var(--line)}.faq summary{list-style:none;cursor:pointer;padding:22px 0;font-size:14px;display:flex;justify-content:space-between;gap:20px}.faq summary::-webkit-details-marker{display:none}.faq summary span{color:var(--gold)}.faq details[open] summary span{transform:rotate(45deg)}.faq details p{font-size:13px;color:var(--muted);padding:0 25px 23px 0}footer{border-top:1px solid var(--line);padding:40px 0 24px}.footer-top{display:flex;align-items:center;gap:40px;font-size:12px}.footer-top .brand{padding:0;margin-right:auto;font-size:28px;color:#9b5128}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:35px;padding-top:20px;border-top:1px solid var(--line);font-size:9px;letter-spacing:.5px;color:#948673}@media(min-width:1600px){.hero{padding-left:calc((100% - 1400px)/2);padding-right:calc((100% - 1400px)/2)}.hero-art{right:0;width:59%}}@media(max-width:1050px){nav{gap:18px}.hero-art{right:-15%;opacity:.75}.hero-copy{width:65%}.optimization,.issuance{gap:50px}.section{padding-block:80px}.step-panel{gap:35px}.bitweb-copy{padding:50px 8%}.section-intro{max-width:330px}.start,.faq{gap:45px}}@media(max-width:720px){header{height:72px}.brand{font-size:21px;padding-left:40px}.brand img{width:32px;height:32px}.brand span{font-size:6px}.menu{display:block;border:1px solid var(--line);padding:8px 12px;background:none;color:var(--ink);font-size:11px}nav{display:none;position:absolute;top:71px;left:0;right:0;padding:25px 6%;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:22px}nav.open{display:flex}.hero{padding-top:42px}.hero-copy{width:100%;padding-bottom:0}.hero h1{font-size:40px}.hero-sub{font-size:18px;margin:20px 0 12px}.hero .eyebrow{font-size:8px;letter-spacing:1.5px}.intro{font-size:12px}.actions{gap:20px}.button{padding:15px 18px;font-size:12px}.text-link{font-size:12px}.hero-art{position:relative;width:120%;right:auto;margin-left:-10%;top:auto;height:310px;opacity:1;margin-top:10px}.hero-art:after{background:linear-gradient(0deg,var(--bg),transparent 18%),linear-gradient(180deg,var(--bg),transparent 15%)}.hero-art figcaption{right:12%;bottom:15px;font-size:7px}.hero-art figcaption span{display:none}.hero-bottom{font-size:7px;letter-spacing:.5px;padding:18px 0}.stats{grid-template-columns:1fr 1fr;padding:10px 0 25px;gap:25px}.stats>div{padding:15px 0 0 20px}.stats>div:nth-child(3){border:0;padding-left:0}.stats strong{font-size:38px}.stats p{font-size:10px}.section{padding-block:60px}.section-heading{display:block;margin-bottom:30px}.section-intro{margin-top:25px;max-width:100%;font-size:13px}.eyebrow{margin-bottom:18px;font-size:9px}h2{font-size:32px}.principles{grid-template-columns:1fr}.principles article,.principles article+article{padding:25px 0;border-left:0}.principles article+article{border-top:1px solid var(--line)}.principles h3{margin:15px 0 12px;font-size:21px}.principles p{min-height:0}.small-label{margin-top:15px}.protocol-note{align-items:start}.steps button{font-size:11px;padding:16px 0}.steps button span{display:block;margin-bottom:8px}.step-panel{grid-template-columns:1fr;gap:25px;padding:25px 0}.chip-scene{min-height:240px}.chip{width:150px;height:150px}.step-copy h3{font-size:24px}.pool{grid-template-columns:1fr;gap:20px;padding-top:25px}.optimization,.issuance,.start,.faq{grid-template-columns:1fr;gap:35px}.cost-demo{padding:25px;box-shadow:6px 6px 0 #e9e1d3}.cost-result strong{font-size:36px}.bitweb{grid-template-columns:1fr}.bitweb>img{height:290px}.bitweb-copy{padding:35px 6% 45px}.issuance .supply{font-size:49px}.start ol{margin-top:5px}.footer-top{gap:18px;flex-wrap:wrap}.footer-top .brand{width:100%;margin-bottom:10px}.footer-bottom{flex-direction:column;gap:13px}.faq summary{font-size:13px}.wrap{width:88%}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
