:root{--green:#173d31;--gold:#b79b00;--ink:#18231f;--line:#d9e0dc;--pale:#f3f6f4}*{box-sizing:border-box}body{margin:0;background:var(--pale);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Noto Sans JP",sans-serif}header{background:#fff;border-bottom:1px solid var(--line);min-height:82px;padding:10px max(16px,calc((100vw - 980px)/2));display:flex;align-items:center;justify-content:space-between;gap:18px;position:sticky;top:0;z-index:3}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none}.brand img{width:60px;height:60px;object-fit:contain;border-radius:13px;background:#fff;border:1px solid #ecefec}.brand span{display:grid}.brand b{font-size:18px;letter-spacing:.08em}.brand strong{color:var(--green);font-size:13px;letter-spacing:.16em}.actions{display:flex;gap:10px;align-items:center}.actions a{color:var(--green);font-weight:800;text-decoration:none;padding:10px 12px;border:1px solid var(--line);border-radius:9px}main{max-width:980px;margin:auto;padding:44px 16px 70px}.hero{text-align:center;margin-bottom:26px}.hero p{color:var(--gold);font-weight:900;letter-spacing:.15em}.hero h1{font-size:clamp(35px,7vw,62px);margin:5px 0}.hero span{color:#5c6862}.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:clamp(18px,4vw,32px);box-shadow:0 12px 35px #173d310d}.card h2{margin-top:0}.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}label{display:grid;gap:7px;font-weight:700;margin-bottom:16px}input,select,textarea{width:100%;font:inherit;border:1px solid #becbc4;border-radius:10px;padding:13px;background:#fff}textarea{resize:vertical}button{border:0;border-radius:10px;background:var(--green);color:#fff;padding:14px 22px;font:inherit;font-weight:900;cursor:pointer}.sub{background:#edf2ef;color:var(--green);margin-top:12px}.chat-head{display:flex;justify-content:space-between;gap:15px;border-bottom:1px solid var(--line);padding-bottom:16px}.chat-head .sub{height:max-content;margin:0}.chat-head small{display:block;color:#718078}.chat-head b{color:var(--gold);letter-spacing:.08em}.chat-head h2{margin:6px 0 0}.messages{min-height:300px;max-height:58vh;overflow:auto;padding:18px 0;display:flex;flex-direction:column;gap:12px}.msg{max-width:78%;padding:12px 15px;border-radius:15px;background:#edf2ef;align-self:flex-start}.msg.mine{background:var(--green);color:#fff;align-self:flex-end}.msg small{display:block;opacity:.7;margin-bottom:5px}.msg p{white-space:pre-wrap;margin:0;line-height:1.55}.chat form{border-top:1px solid var(--line);padding-top:16px;display:grid;gap:10px}.chat form button{justify-self:end}footer{text-align:center;background:var(--green);color:#fff;padding:26px}footer a{color:#fff}@media(max-width:650px){header{align-items:flex-start}.brand img{width:48px;height:48px}.brand b{font-size:15px}.actions{flex-direction:column;align-items:stretch}.actions a{font-size:12px;padding:7px}.grid{grid-template-columns:1fr}main{padding-top:28px}.msg{max-width:90%}}