:root{--pop-bg1:#fff1f7;--pop-bg2:#eef4ff;--pop-bg3:#f3fff4;--pop-ink:#2b2b3a;--pop-muted:#6b6b80;--pop-pink:#ff5fa2;--pop-purple:#8b5cf6;--pop-blue:#3b82f6;--pop-green:#16a34a;--pop-amber:#d97706;--pop-red:#e11d48;--pop-card:#ffffff;--pop-line:#ececf3;--pop-radius:22px;--pop-shadow:0 10px 30px rgba(139,92,246,0.12)}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:Hiragino Maru Gothic ProN,Hiragino Sans,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--pop-ink);background:radial-gradient(1200px 600px at 10% -10%,var(--pop-bg1),transparent 60%),radial-gradient(1000px 500px at 110% 10%,var(--pop-bg2),transparent 55%),radial-gradient(900px 600px at 50% 120%,var(--pop-bg3),transparent 55%),#fbfbff;min-height:100vh;-webkit-font-smoothing:antialiased}a{color:var(--pop-purple);text-decoration:none;font-weight:700}a:hover{text-decoration:underline}.page{max-width:560px;margin:0 auto;padding:32px 20px 64px}.page-wide{max-width:1120px;margin:0 auto;padding:28px 20px 64px}.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:20px;letter-spacing:-.01em}.brand .logo{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-size:20px;background:linear-gradient(135deg,var(--pop-pink),var(--pop-purple));box-shadow:var(--pop-shadow)}.topbar{display:flex;justify-content:space-between;gap:12px;margin-bottom:22px}.topbar,.userchip{align-items:center}.userchip{display:inline-flex;gap:10px;font-size:13px;color:var(--pop-muted)}.hero-title{font-size:clamp(26px,5vw,40px);font-weight:900;line-height:1.2;margin:6px 0 10px;background:linear-gradient(120deg,var(--pop-pink),var(--pop-purple) 55%,var(--pop-blue));-webkit-background-clip:text;background-clip:text;color:transparent}.lead{color:var(--pop-muted);font-size:15px;line-height:1.8;margin:0 0 8px}.card{background:var(--pop-card);border:1px solid var(--pop-line);border-radius:var(--pop-radius);box-shadow:var(--pop-shadow);padding:22px;margin-top:18px}.card h2{margin:0 0 12px;font-size:17px;font-weight:800}.card h2 .emoji{margin-right:6px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field label{font-size:13px;font-weight:700;color:var(--pop-ink)}.field .hint{font-size:12px;color:var(--pop-muted)}.input,select.input{width:100%;padding:12px 14px;font-size:15px;border:2px solid var(--pop-line);border-radius:14px;background:#fff;color:var(--pop-ink);outline:none;transition:border-color .15s,box-shadow .15s}.input:focus,select.input:focus{border-color:var(--pop-purple);box-shadow:0 0 0 4px rgba(139,92,246,.15)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:13px 18px;font-size:15px;font-weight:800;border:none;border-radius:999px;cursor:pointer;transition:transform .08s ease,box-shadow .15s,filter .15s}.btn:active{transform:translateY(1px)}.btn-primary{color:#fff;background:linear-gradient(135deg,var(--pop-pink),var(--pop-purple));box-shadow:0 8px 20px rgba(255,95,162,.35)}.btn-primary:hover{filter:brightness(1.05)}.btn-google{color:var(--pop-ink);background:#fff;border:2px solid var(--pop-line)}.btn-google:hover{border-color:#d8d8e6;box-shadow:0 6px 16px rgba(0,0,0,.06)}.btn-ghost{font-weight:700;background:#fff;border:2px solid var(--pop-line);color:var(--pop-muted)}.btn-ghost,.btn-sm{width:auto;padding:8px 14px;font-size:13px}.divider{display:flex;align-items:center;gap:12px;color:var(--pop-muted);font-size:12px;margin:16px 0}.divider:after,.divider:before{content:"";flex:1 1;height:1px;background:var(--pop-line)}.note{font-size:13px;color:var(--pop-muted);line-height:1.7}.alert{border-radius:14px;padding:12px 14px;font-size:14px;margin-bottom:14px}.alert-ok{background:#ecfdf3;color:#067647;border:1px solid #abefc6}.alert-err{background:#fff1f3;color:var(--pop-red);border:1px solid #fecdd6}.alert-info{background:#eff6ff;color:#1d4ed8;border:1px solid #bfdbfe}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:800}.badge-green{background:#ecfdf3;color:#067647}.badge-amber{background:#fffaeb;color:#b54708}.badge-red{background:#fff1f3;color:var(--pop-red)}.badge-gray{background:#f3f3f7;color:var(--pop-muted)}.kv{line-height:2;font-size:15px;margin:0;padding:0;list-style:none}.kv li{display:flex;gap:10px}.kv .k{color:var(--pop-muted);min-width:90px}.code{background:#f6f5ff;border:1px solid #e6e2ff;color:#5b3ec8;padding:2px 8px;border-radius:8px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;word-break:break-all}.steps{line-height:1.9;padding-left:20px;margin:8px 0}.steps li{margin-bottom:6px}.table{border-collapse:collapse;width:100%;font-size:13px}.table td,.table th{border-bottom:1px solid var(--pop-line);padding:8px 10px;text-align:left;vertical-align:top}.table th{border-bottom:2px solid #e3e3ee;font-weight:800;color:var(--pop-muted)}.row-form{display:flex;gap:6px;align-items:center;flex-wrap:wrap}.row-form .input,.row-form select.input{width:auto;padding:7px 10px;font-size:13px;border-radius:10px}.footer-note{text-align:center;color:var(--pop-muted);font-size:12px;margin-top:26px}.feat-label{margin:4px 0 8px}.feat-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.feat{display:flex;align-items:flex-start;gap:12px;background:#f9f8ff;border:1px solid var(--pop-line);border-radius:14px;padding:12px 14px}.feat-soon{background:#fffdf5;opacity:.92}.feat-icon{font-size:22px;line-height:1.2;flex-shrink:0}.feat-body{display:flex;flex-direction:column;gap:2px}.feat-body strong{font-size:15px}.feat-note{font-size:12.5px;color:var(--pop-muted);line-height:1.6}.flow{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.flow-item{display:flex;align-items:flex-start;gap:12px}.flow-num{flex-shrink:0;width:30px;height:30px;border-radius:999px;display:grid;place-items:center;font-size:14px;font-weight:900;color:#fff;background:linear-gradient(135deg,var(--pop-pink),var(--pop-purple));box-shadow:0 4px 10px rgba(139,92,246,.3)}.flow-body{display:flex;flex-direction:column;gap:2px;padding-top:3px}.flow-body strong{font-size:15px}.copybox{display:flex;align-items:stretch;gap:10px;margin-top:10px;background:#f6f5ff;border:2px solid #e6e2ff;border-radius:14px;padding:12px 12px 12px 16px}.copybox-text{flex:1 1;align-self:center;color:#4b3aa8;font-size:14px;line-height:1.6;font-weight:700;word-break:break-word}.copybox-btn{flex-shrink:0;align-self:center;border:none;cursor:pointer;white-space:nowrap;padding:10px 16px;border-radius:999px;font-size:13px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--pop-pink),var(--pop-purple));box-shadow:0 6px 14px rgba(255,95,162,.3);transition:filter .15s}.copybox-btn:hover{filter:brightness(1.05)}