:root{--bg:#f5f7fb;--panel:#fff;--line:#dce4ee;--text:#18253a;--muted:#69788d;--purple:#7454d2;--blue:#2864e8}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,"Segoe UI",sans-serif}
.pa-top{height:70px;padding:0 26px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.pa-brand{display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none}.pa-mark{width:40px;height:40px;border-radius:11px;background:var(--purple);color:#fff;display:grid;place-items:center;font-weight:900}.pa-brand strong,.pa-brand small{display:block}.pa-brand small{margin-top:2px;color:var(--muted);font-size:10px}.pa-back{height:36px;padding:0 12px;border:1px solid var(--line);border-radius:7px;color:inherit;text-decoration:none;display:flex;align-items:center;font-size:10px;font-weight:800}
.pa-main{max-width:1450px;margin:auto;padding:26px;display:flex;flex-direction:column;gap:17px}.pa-head{display:flex;align-items:flex-end;justify-content:space-between;gap:25px}.pa-kicker{color:var(--purple);font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.08em}.pa-head h1{margin:5px 0 7px;font-size:30px}.pa-head p{max-width:760px;margin:0;color:var(--muted);line-height:1.55}.pa-version{padding:7px 10px;border-radius:999px;background:#eee9ff;color:#6547bf;font-size:10px;font-weight:800}
.pa-placeholder,.pa-future,.pa-note{background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 30px rgba(23,35,55,.05)}.pa-placeholder{padding:22px}.pa-flow{display:grid;grid-template-columns:1fr 45px 1.25fr 45px 1fr;gap:10px;align-items:center}.pa-flow>b{text-align:center;color:#92a0b2;font-size:22px}.pa-flow article{min-height:96px;border:1px solid var(--line);border-radius:8px;padding:14px;background:#fbfcfe}.pa-flow article span{width:25px;height:25px;border-radius:50%;background:#edf2ff;color:var(--blue);display:grid;place-items:center;font-size:9px;font-weight:900}.pa-flow article strong,.pa-flow article small{display:block}.pa-flow article strong{margin-top:8px;font-size:12px}.pa-flow article small{margin-top:4px;color:var(--muted);font-size:9px}
.pa-message{margin-top:21px;min-height:190px;border:1.5px dashed #aab9d0;border-radius:9px;background:linear-gradient(180deg,#fafcff,#fff);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px}.pa-message>span{color:var(--purple);font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.08em}.pa-message h2{margin:7px 0}.pa-message p{max-width:700px;margin:0;color:var(--muted);line-height:1.6;font-size:12px}
.pa-future{padding:18px}.pa-future h2{margin:0 0 13px;font-size:15px}.pa-future-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.pa-future-grid article{border:1px solid var(--line);border-radius:8px;padding:13px}.pa-future-grid strong{font-size:11px}.pa-future-grid p{margin:6px 0 0;color:var(--muted);line-height:1.5;font-size:9px}
.pa-note{padding:14px 16px;display:grid;grid-template-columns:170px 1fr;gap:15px}.pa-note p{margin:0;color:var(--muted);line-height:1.55;font-size:10px}.pa-note code{color:#5d47a5}
@media(max-width:950px){.pa-flow{grid-template-columns:1fr}.pa-flow>b{transform:rotate(90deg)}.pa-future-grid{grid-template-columns:1fr 1fr}}@media(max-width:650px){.pa-main{padding:16px}.pa-head{align-items:flex-start;flex-direction:column}.pa-future-grid,.pa-note{grid-template-columns:1fr}}