:root{--blue:#0B4FB3;--ink:#172033;--muted:#67748a;--line:#dfe6f0;--bg:#f5f7fb;--white:#fff;--danger:#b42318}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--blue);text-decoration:none}.topbar{height:64px;padding:0 28px;display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid var(--line)}.topbar strong,.brand{font-size:24px;color:var(--blue)}.topbar span,.brand span{color:var(--ink);font-weight:600;font-size:16px;margin-left:6px}.layout{display:grid;grid-template-columns:320px 1fr;min-height:calc(100vh - 64px)}.sidebar{padding:24px;background:#fff;border-right:1px solid var(--line)}.main{padding:42px;max-width:1050px;width:100%;margin:0 auto}.hero{margin-bottom:24px}.hero h1{font-size:38px;line-height:1.25;margin:8px 0 10px}.hero p{color:var(--muted);font-size:16px}.eyebrow{color:var(--blue)!important;font-weight:700}.stack{display:grid;gap:12px}input,textarea,button{font:inherit}input,textarea{width:100%;padding:12px;border:1px solid #cfd8e6;border-radius:10px;background:#fff}button{border:0;border-radius:10px;padding:12px 16px;background:var(--blue);color:#fff;font-weight:700;cursor:pointer}.ask-box{background:#fff;padding:18px;border:1px solid var(--line);border-radius:16px;box-shadow:0 8px 24px rgba(29,46,80,.06)}.ask-box button{margin-top:10px}.answer-card,.sources{margin-top:22px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}.answer-text{white-space:pre-wrap;line-height:1.8}.sources details{border-top:1px solid var(--line);padding:14px 0}.sources summary{cursor:pointer;font-weight:700}.sources summary span{float:right;color:var(--muted);font-weight:500}.sources pre{white-space:pre-wrap;font-family:inherit;line-height:1.7;color:#344054}.doc-list{margin-top:18px}.doc-item{padding:12px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:8px}.doc-item small{display:block;color:var(--muted);margin-top:3px}.danger{background:transparent;color:var(--danger);padding:4px 7px}.status{margin-top:18px;padding:9px 10px;border-radius:8px;font-size:13px;font-weight:700}.status.on{background:#e9f8ef;color:#087443}.status.off{background:#fff5df;color:#8a5a00}.stats,.muted{color:var(--muted);font-size:14px;margin-top:8px}.login-body{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#eef4ff,#f8faff)}.login-card{width:min(420px,92vw);padding:34px;background:#fff;border-radius:18px;border:1px solid var(--line);box-shadow:0 18px 55px rgba(11,79,179,.12)}.login-card h1{margin-bottom:6px}.login-card label{display:grid;gap:6px;font-weight:600}.alert{padding:10px;background:#fff1f0;color:#b42318;border-radius:8px;margin:12px 0}@media(max-width:800px){.layout{grid-template-columns:1fr}.sidebar{border-right:0;border-bottom:1px solid var(--line)}.main{padding:24px}.hero h1{font-size:30px}}

/* v0.2 sales-demo refresh */
:root{--navy:#10243e;--blue:#1769e0;--cyan:#17a8c5;--success:#0a8060}
.topbar{height:68px;padding:0 32px;position:sticky;top:0;z-index:2}.brand{display:flex;align-items:center}.brand-mark{display:grid!important;place-items:center;width:32px;height:32px;background:linear-gradient(135deg,var(--blue),var(--cyan));border-radius:9px;color:#fff!important;font-size:22px!important;font-weight:800;margin:0 7px 0 0!important}.brand strong{color:var(--navy)}.brand>span:last-child{font-size:14px;color:var(--muted)}.top-actions{display:flex;align-items:center;gap:22px;font-size:13px}.secure-label{padding:6px 10px;border-radius:99px;background:#eef9f5;color:var(--success)!important;font-size:13px!important;font-weight:700}
.layout{grid-template-columns:310px 1fr;min-height:calc(100vh - 68px)}.sidebar{padding:30px 24px}.side-heading h2{margin:3px 0 20px}.main{padding:48px 52px 80px}.eyebrow{margin:0;color:var(--blue)!important;font-size:11px!important;font-weight:800;letter-spacing:.16em}.hero h1{font-size:42px;letter-spacing:-.035em;color:var(--navy)}.hero h1 span{color:var(--blue)}.hero>p:last-child{max-width:720px;line-height:1.8}
.upload-box{padding:16px;border:1px dashed #b9c8dc;border-radius:14px;background:#f8fbff}.upload-box label,.ask-box>label{font-size:13px;font-weight:750}.status{display:flex;align-items:center;gap:7px}.status-dot{width:7px;height:7px;border-radius:50%;background:currentColor}.status.on{background:#eaf8f3;color:var(--success)}.status.off{background:#edf4ff;color:#1553a4}.stats{font-size:12px;line-height:1.6}.doc-name{display:flex;gap:9px;min-width:0}.doc-name strong{display:block;max-width:160px;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-icon{display:grid;place-items:center;flex:0 0 auto;width:28px;height:32px;border-radius:5px;background:#eaf2ff;color:var(--blue);font-size:11px;font-weight:800}
.ask-box{padding:20px;border-radius:18px;box-shadow:0 12px 35px rgba(20,45,80,.07)}.ask-row{display:grid;grid-template-columns:1fr 132px;align-items:stretch;gap:12px;margin-top:9px}.ask-row button{margin:0;display:flex;align-items:center;justify-content:center;gap:12px}.hint{margin:10px 2px 0;color:#8994a6;font-size:11px}.answer-card{border-left:4px solid var(--blue);box-shadow:0 12px 35px rgba(20,45,80,.06)}.card-label{display:flex;align-items:center;gap:9px;color:var(--blue);font-size:12px;font-weight:800}.answer-icon{display:grid;place-items:center;width:23px;height:23px;border-radius:50%;background:#eaf2ff}.answer-text{margin:15px 0 18px;font-size:20px;font-weight:650;color:var(--navy)}.primary-source{display:flex;align-items:center;gap:8px;padding-top:14px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.primary-source strong{color:#34435a}.section-title{display:flex;justify-content:space-between;align-items:center}.section-title h2{font-size:20px;margin:5px 0 15px}.sources details{padding:0}.sources summary{list-style:none;display:flex;align-items:center;gap:12px;padding:16px 2px}.sources summary span{float:none}.source-rank{display:grid;place-items:center;width:26px;height:26px;border-radius:8px;background:#edf4ff;color:var(--blue)!important;font-size:12px;font-weight:800!important}.source-title{display:grid;gap:3px;flex:1}.source-title small{font-size:11px;color:var(--muted)}.source-body{margin:0 0 18px 40px;padding:15px 17px;border-radius:10px;background:#f7f9fc;color:#3c495d;white-space:pre-wrap;line-height:1.8;font-size:13px}
@media(max-width:820px){.layout{grid-template-columns:1fr}.main{padding:32px 22px 60px}.hero h1{font-size:32px}.ask-row{grid-template-columns:1fr}.secure-label{display:none}.answer-text{font-size:17px}}
.answer-notice{margin:12px 0 0;padding:10px 12px;border-radius:9px;background:#fff8e8;color:#765800;font-size:13px}
.free-usage{display:grid;gap:6px;margin:14px 0;padding:12px;border-radius:10px;background:#f0f6ff;color:#34435a;font-size:12px}.free-usage strong{color:var(--blue)}.privacy-notice{margin-top:14px;padding:12px 14px;border-radius:10px;background:#fff8e8;color:#765300!important;font-size:13px!important}.account-label{font-size:12px!important;color:var(--muted)!important}.login-switch{text-align:center;margin-top:18px}.terms-check{grid-template-columns:20px 1fr!important;align-items:start;font-size:12px!important;line-height:1.55}.terms-check input{width:auto;margin-top:3px}.terms-check span{font-weight:500}
.logout-form{display:inline}.link-button{padding:0;background:transparent;color:var(--blue);font-weight:600}.service-description{font-size:14px!important;line-height:1.75}.site-footer{padding:22px;text-align:center;color:var(--muted);font-size:12px;border-top:1px solid var(--line);background:#fff}