:root{--pink: #ff0097;--black: #000;--grey-light: #999;--grey-dark: #3b3b3b;--white: #fff;--bg: #fafafa;--danger: #d0021b;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--black);line-height:1.5}#root{min-height:100vh}.shell-header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;background:var(--white);border-bottom:1px solid #eee}.shell-header .logo{font-weight:700;color:var(--pink);text-decoration:none;font-size:18px}.shell-nav a,.shell-nav button{margin-left:16px;background:none;border:none;font-size:14px;color:var(--black);cursor:pointer;text-decoration:none}.container{max-width:640px;margin:0 auto;padding:32px 24px 80px}h1{font-size:24px;margin-bottom:4px}h2{color:var(--pink);font-size:17px;margin-top:32px}label{display:block;font-size:13px;color:var(--grey-dark);margin-bottom:4px;margin-top:12px}input,textarea,select{width:100%;padding:10px 14px;border:1px solid var(--black);border-radius:10px;font-size:15px;font-family:inherit}.btn{display:inline-block;background:var(--pink);color:var(--white);border:none;border-radius:10px;padding:10px 20px;font-size:14px;font-weight:700;cursor:pointer;margin-top:16px}.btn:disabled{opacity:.6;cursor:default}.btn-outline{background:transparent;color:var(--pink);border:1px solid var(--pink)}.btn-danger{background:var(--danger)}.btn-link{background:none;color:var(--pink);padding:0;font-weight:400;text-decoration:underline}.card{background:var(--white);border:1px solid #eee;border-radius:12px;padding:16px;margin-top:12px;display:flex;align-items:center;justify-content:space-between}.card-title{font-weight:700}.card-sub{color:var(--grey-light);font-size:13px}.notice{padding:10px 14px;border-radius:10px;font-size:14px;margin-top:12px}.notice.success{background:#e6f7ee;color:#1a7a4c}.notice.error{background:#fde8ef;color:#b3005c}.row{display:flex;gap:12px}.row>*{flex:1}.muted{color:var(--grey-light);font-size:13px}.link-back{color:var(--grey-dark);text-decoration:none;font-size:14px}