* { box-sizing: border-box; }
.account-page { margin: 0; padding: 32px 18px; color: #172c43; background: #f1f5f9; font: 16px/1.8 -apple-system,BlinkMacSystemFont,"Yu Gothic","Meiryo",sans-serif; }
.account-card { max-width: 500px; margin: 4vh auto; padding: 30px; border: 1px solid #dbe3ea; border-radius: 20px; background: #fff; box-shadow: 0 14px 40px #17395f0d; }
.account-brand { display: inline-block; margin-bottom: 16px; color: #17395f; font-family: "Yu Mincho",serif; font-size: 20px; font-weight: 800; text-decoration: none; }
.account-card h1 { font-size: 26px; line-height: 1.5; margin: 0 0 12px; }
.account-card p { margin: 12px 0 20px; }
.account-card label { display: block; margin: 16px 0 7px; font-weight: 700; }
.account-card input { max-width: 100%; width: 100%; min-height: 50px; border: 1px solid #a4b4c4; border-radius: 9px; padding: 10px 12px; font: inherit; background: white; color: #172c43; }
.account-card .pin-input { max-width: 250px; font-size: 24px; letter-spacing: .6em; }
.account-card .field-help { color: #5d6e80; font-size: 14px; margin: 7px 0 20px; }
.account-card fieldset { min-width: 0; margin: 24px 0; padding: 8px 18px 20px; border: 1px solid #dbe3ea; border-radius: 12px; }
.account-card legend { padding: 0 7px; font-weight: 700; }
.account-card .account-choices { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 6px 0; border: 0; }
.account-card .account-choice { display: flex; align-items: center; gap: 8px; margin: 0; padding: 12px; border: 1px solid #bbc9d7; border-radius: 10px; cursor: pointer; overflow-wrap: anywhere; }
.account-choice:has(input:checked) { background: #eaf2f8; outline: 2px solid #17395f; }
.account-card .account-choice input { width: 20px; height: 20px; min-height: 20px; flex: 0 0 20px; accent-color: #17395f; }
.account-card .primary { display: block; width: 100%; margin-top: 24px; padding: 13px 18px; background: #17395f; border: 0; border-radius: 10px; color: white; font: inherit; font-weight: 700; text-align: center; text-decoration: none; cursor: pointer; }
.account-card .form-error { background: #fff1ee; border-left: 4px solid #ba452a; padding: 12px 15px; color: #902f20; }
.account-card .back-link { display: block; margin-top: 24px; color: #17395f; }
.account-card :focus-visible, .account-toolbar :focus-visible { outline: 3px solid #df643e; outline-offset: 3px; }
.account-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; padding-bottom: 18px; margin-bottom: 24px; border-bottom: 1px solid #dbe3ea; font-size: 16px; }
.account-toolbar > div { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.account-toolbar small { display: block; max-width: 420px; margin-top: 3px; color: #5d6e80; font-size: 14px; }
.account-toolbar [data-retry="true"] { color: #ba452a; cursor: pointer; text-decoration: underline; }
.account-toolbar a, .account-toolbar button { color: #17395f; font: inherit; font-size: 14px; }
.account-toolbar button { min-height: 40px; padding: 7px 12px; border: 1px solid #bbc9d7; border-radius: 8px; background: white; cursor: pointer; }
@media(max-width:500px) { .account-card { margin: 0 auto; padding: 24px 20px; } .account-page { padding: 18px 12px; } .account-card h1 { font-size: 24px; } }