:root{--ink:#111;--muted:#5f6460;--line:#e3e5e1;--bg:#fff;--bo:#f5f6f4;--g:#1f5130;--gs:#e7f0ea;--amber:#9a6412;--ams:#fbf1de;--red:#a63b2a;--rs:#f8e4df;--navy:#1b2a41}
*{box-sizing:border-box}
body{margin:0;font:15px/1.45 "Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:inherit}
button{font:inherit;cursor:pointer}
.pbar{position:sticky;top:0;z-index:20;background:#111;color:#fff;padding:8px 18px;display:flex;flex-wrap:wrap;gap:6px 18px;align-items:center;font-size:13px}
.pbar b{font-weight:700;margin-right:6px}
.pbar .tab{background:none;border:0;color:#bbb;padding:6px 2px;border-bottom:2px solid transparent}
.pbar .tab.on{color:#fff;border-bottom-color:#7fc49a}
.pbar .note{margin-left:auto;color:#999;font-size:12px}
.sbar{background:#f0f1ee;border-bottom:1px solid var(--line);padding:6px 18px;display:flex;flex-wrap:wrap;gap:6px;font-size:12.5px}
.sbar button{background:#fff;border:1px solid var(--line);border-radius:14px;padding:3px 11px;color:#333}
.sbar button.on{background:var(--g);border-color:var(--g);color:#fff}
.url{font-size:12px;color:#777;padding:6px 18px;border-bottom:1px solid var(--line);background:#fafafa}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.btn{display:inline-block;background:var(--g);color:#fff;border:0;border-radius:6px;padding:11px 18px;font-weight:700}
.btn2{display:inline-block;background:#fff;color:var(--g);border:1.5px solid var(--g);border-radius:6px;padding:10px 16px;font-weight:700}
.btn3{background:none;border:0;color:var(--g);text-decoration:underline;padding:0}
.muted{color:var(--muted)} .small{font-size:12.5px} .tiny{font-size:11.5px}
.disc{font-size:12px;color:var(--muted);margin-top:14px;line-height:1.4;max-width:70ch}
.pill{display:inline-block;font-size:11.5px;padding:2px 8px;border-radius:10px;background:#eef0ec;color:#333;margin:0 4px 4px 0;white-space:nowrap}
.pill.g{background:var(--gs);color:var(--g)} .pill.a{background:var(--ams);color:var(--amber)} .pill.r{background:var(--rs);color:var(--red)}
table.t{width:100%;border-collapse:collapse;font-size:13.5px}
table.t th{text-align:left;font-weight:600;color:var(--muted);font-size:12px;border-bottom:1px solid var(--line);padding:7px 8px}
table.t td{border-bottom:1px solid var(--line);padding:8px;vertical-align:top}
table.t tr.click{cursor:pointer} table.t tr.click:hover td{background:#f4f8f5}
.num{font-variant-numeric:tabular-nums;text-align:right}
.kv{width:100%;border-collapse:collapse;font-size:14px} .kv td{padding:6px 0;border-bottom:1px solid var(--line)} .kv td:first-child{color:var(--muted);width:44%}
.card{border:1px solid var(--line);border-radius:8px;background:#fff;padding:16px}
.grid2{display:grid;grid-template-columns:1.25fr 1fr;gap:22px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
h1{font-size:40px;line-height:1.1;margin:0 0 12px;letter-spacing:-.5px}
h2{font-size:24px;margin:0 0 10px} h3{font-size:16px;margin:0 0 8px}
.lbl{font-size:12px;color:var(--muted);margin-bottom:4px}
/* public buy */
.pnav{display:flex;justify-content:space-between;align-items:center;padding:16px 0;border-bottom:1px solid #eee}
.pnav b{font-size:18px} .pnav span{font-size:14px;color:#444}
.hero{text-align:center;padding:70px 0 40px}
.hero h1{font-size:52px}
.bigin{display:flex;max-width:640px;margin:26px auto 0;border:2px solid var(--ink);border-radius:8px;overflow:hidden}
.bigin input{flex:1;border:0;padding:16px;font-size:16px;outline:0}
.bigin button{border:0;background:var(--g);color:#fff;font-weight:700;padding:0 24px;font-size:16px}
.steps{display:flex;justify-content:center;gap:34px;margin-top:40px;font-size:14px}
.steps i{display:inline-block;width:24px;height:24px;border-radius:50%;background:var(--gs);color:var(--g);font-style:normal;font-weight:700;text-align:center;line-height:24px;margin-right:8px}
.codebox{display:flex;gap:8px;justify-content:center;margin:18px 0}
.codebox span{width:46px;height:56px;border:2px solid var(--ink);border-radius:6px;font-size:26px;font-weight:700;display:flex;align-items:center;justify-content:center}
.price{font-size:46px;font-weight:800;letter-spacing:-1px}
.sig{font-family:"Brush Script MT","Segoe Script",cursive;font-size:30px;color:#123;border-bottom:1px solid #999;padding:4px 0;width:280px}
.doc{border:1px solid var(--line);padding:22px 26px;font-size:13.5px;max-height:360px;overflow:auto;background:#fff}
.doc h4{margin:14px 0 6px;font-size:13.5px}
.boxq{background:#fafbf9;border:1px solid var(--line);border-radius:8px;padding:14px}
.choice{display:flex;gap:10px;margin-top:8px}
.choice button{border:1.5px solid var(--line);background:#fff;border-radius:6px;padding:8px 14px}
.choice button.on{border-color:var(--g);background:var(--gs);color:var(--g);font-weight:700}
/* back office */
.bo{background:var(--bo);min-height:calc(100vh - 110px)}
.bohead{background:#fff;border-bottom:1px solid var(--line);padding:12px 0}
.bohead .wrap{display:flex;align-items:center;gap:22px}
.bohead b{font-size:15px} .bohead nav{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:13.5px}
.adj{display:inline-flex;gap:4px}.adj button{border:1px solid var(--line);background:#fff;border-radius:5px;padding:3px 8px;font-size:12.5px}
.inp{border:1px solid var(--line);border-radius:5px;padding:6px 8px;font:inherit;width:110px;text-align:right}
.step{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.step i{flex:none;width:26px;height:26px;border-radius:50%;background:var(--gs);color:var(--g);font-style:normal;font-weight:700;text-align:center;line-height:26px}
.bohead nav button{background:none;border:0;color:#444;padding:4px 0;border-bottom:2px solid transparent}
.bohead nav button.on{color:var(--g);border-bottom-color:var(--g);font-weight:700}
.bohead .who{margin-left:auto;font-size:12.5px;color:var(--muted)}
.stat{background:#fff;border:1px solid var(--line);border-radius:8px;padding:12px 14px}
.stat .n{font-size:24px;font-weight:800;font-variant-numeric:tabular-nums}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chips button{border:1px solid var(--line);background:#fff;border-radius:14px;padding:4px 11px;font-size:12.5px}
.chips button.on{background:var(--g);border-color:var(--g);color:#fff}
.chips button.off{color:#aaa}
.cols{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
.col{background:#eef0ec;border-radius:8px;padding:8px;min-height:240px}
.col h4{font-size:12px;margin:2px 4px 8px;color:#444}
.kc{background:#fff;border:1px solid var(--line);border-radius:6px;padding:8px;font-size:12.5px;margin-bottom:8px;cursor:pointer}
.kc:hover{border-color:var(--g)}
.chk{display:flex;gap:10px;padding:8px 0;border-bottom:1px solid var(--line);font-size:13.5px}
.chk .ic{width:20px;height:20px;border-radius:50%;flex:none;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff}
.ic.ok{background:var(--g)} .ic.fl{background:var(--amber)} .ic.no{background:var(--red)}
.exit{border:1.5px solid var(--line);border-radius:8px;padding:12px;background:#fff}
.exit.rec{border-color:var(--g);box-shadow:inset 0 0 0 1px var(--g)}
.exit.blk{opacity:.55}
/* sell */
.lgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.lc{border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff;cursor:pointer}
.lc:hover{border-color:var(--g)}
.lc .bd{padding:12px 14px}
.lc .pr{font-size:21px;font-weight:800}
.chipb{display:inline-block;margin-top:8px;border:1.5px solid var(--g);color:var(--g);font-size:12.5px;font-weight:700;border-radius:5px;padding:4px 9px}
.toggle{display:inline-flex;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.toggle button{border:0;background:#fff;padding:6px 14px;font-size:13px}
.toggle button.on{background:var(--ink);color:#fff}
.achip{position:absolute;background:rgba(17,17,17,.78);color:#fff;font-size:12px;font-weight:700;padding:3px 8px;border-radius:4px;font-family:Arial}
.vis{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}.vis button{border:1.5px solid var(--line);background:#fff;border-radius:7px;padding:10px;text-align:left;cursor:pointer;font-size:13px}.vis button b{display:block;font-size:15px}.vis button.on{border-color:var(--g);background:var(--gs)}.vis .best{border-color:var(--g)}
.unl{margin-top:14px}.unl .cap{font-size:12px;color:var(--muted);margin:4px 0 12px}
.lock{background:#eee;color:#888;font-size:12px;padding:1px 7px;border-radius:4px}
.wcd{background:var(--g);color:#fff;border:0;border-radius:6px;padding:13px 18px;font-weight:800;font-size:16px;width:100%}
.free{font-size:12.5px;color:var(--g);margin-top:6px;text-align:center}
.use{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.use .card h3{margin-bottom:4px}
/* diagram */
.lane{border:1px solid var(--line);border-radius:10px;padding:14px;margin-bottom:12px;background:#fff}
.lane h3{font-size:13px;color:var(--muted);font-weight:600;margin:0 0 10px}
.flow{display:flex;align-items:stretch;gap:0}
.node{flex:1;border:1.5px solid var(--ink);border-radius:8px;padding:10px 11px;font-size:12.5px;background:#fff;cursor:pointer;min-width:0}
.node:hover{background:#f4f8f5}
.node b{display:block;font-size:13.5px;margin-bottom:4px}
.node.g{border-color:var(--g);background:var(--gs)}
.arr{flex:none;width:26px;display:flex;align-items:center;justify-content:center;color:#888;font-size:18px}
.link{display:flex;align-items:center;gap:10px;margin:0 0 12px 0;padding-left:70%}
.link .ln{border-left:2px dashed var(--g);height:36px;margin-left:10px}
.side{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.side .card{font-size:12.5px}
@media(max-width:860px){.grid2,.grid3,.grid4,.lgrid,.use,.side{grid-template-columns:1fr}.flow{flex-direction:column}.arr{transform:rotate(90deg);height:22px;width:auto}.cols{grid-template-columns:1fr 1fr}.hero h1{font-size:36px}.link{padding-left:10px}.bigin{flex-direction:column}.bigin button{padding:14px}.steps{flex-wrap:wrap;gap:12px}.pnav{flex-direction:column;align-items:flex-start;gap:6px}.pbar .note{margin-left:0}}