:root {
    --cif-brand: #2c4f8d;
    --cif-brand-deep: #173764;
    --cif-accent: #bf0101;
    --cif-ink: #17243a;
    --cif-sub: #536176;
    --cif-line: #dce4ef;
    --cif-pale: #eef3fa;
    --cif-success: #176b49;
    --cif-error: #a50101;
}

body.cif-body {
    margin: 0;
    background: #f7f9fc;
    color: var(--cif-ink);
    font-family: 'Noto Sans JP', sans-serif;
}

.cif-body .header { transform: translateX(-50%); opacity: 1; pointer-events: auto; }
.cif-page { min-height: 100vh; }
.cif-wrap { width: min(calc(100% - 48px), 1120px); margin: 0 auto; }

.cif-hero {
    padding: 126px 0 68px;
    background: linear-gradient(135deg, #edf3fb 0%, #f8fafc 52%, #fff 100%);
    border-bottom: 1px solid #e3e9f2;
}

.cif-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(300px, .55fr);
    gap: 70px;
    align-items: center;
}

.cif-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 26px;
    color: var(--cif-brand);
    font-size: 13px;
    font-weight: 700;
}
.cif-back svg { width: 16px; height: 16px; transform: rotate(180deg); }
.cif-service-label { margin: 0 0 9px; color: var(--cif-brand); font-size: 14px; font-weight: 800; }
.cif-hero h1 { max-width: 720px; margin: 0; color: var(--cif-brand-deep); font-size: clamp(31px, 4.2vw, 50px); line-height: 1.35; font-weight: 800; letter-spacing: -.02em; text-wrap: balance; }
.cif-hero-lead { max-width: 66ch; margin: 20px 0 0; color: var(--cif-sub); font-size: 16px; line-height: 1.9; }
.cif-assurance { display: flex; flex-wrap: wrap; gap: 10px 24px; margin: 26px 0 0; padding: 0; list-style: none; }
.cif-assurance li { display: flex; align-items: center; gap: 7px; color: #34445b; font-size: 13px; font-weight: 700; }
.cif-assurance svg { width: 18px; height: 18px; color: var(--cif-brand); }

.cif-summary { padding: 28px; border-radius: 16px; background: #fff; box-shadow: 0 16px 36px -24px rgba(19, 48, 93, .42); }
.cif-summary h2 { margin: 0 0 20px; color: var(--cif-brand-deep); font-size: 18px; }
.cif-summary ol { display: grid; gap: 16px; margin: 0; padding: 0; list-style: none; }
.cif-summary li { display: flex; align-items: center; gap: 13px; }
.cif-summary li > span { display: grid; place-items: center; flex: none; width: 30px; height: 30px; border-radius: 50%; background: var(--cif-pale); color: var(--cif-brand); font: 700 12px 'Rubik', sans-serif; }
.cif-summary strong, .cif-summary small { display: block; }
.cif-summary strong { color: #233653; font-size: 13.5px; }
.cif-summary small { margin-top: 2px; color: var(--cif-sub); font-size: 11.5px; }
.cif-summary > p { margin: 22px 0 4px; padding-top: 18px; border-top: 1px solid var(--cif-line); color: var(--cif-sub); font-size: 11.5px; }
.cif-summary > a { color: var(--cif-brand-deep); font: 700 21px 'Rubik', 'Noto Sans JP', sans-serif; }

.cif-form-section { padding: 76px 0 100px; }
.cif-form-layout { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 34px; align-items: start; }
.cif-form-main { overflow: hidden; border-radius: 16px; background: #fff; box-shadow: 0 14px 34px -25px rgba(20, 46, 86, .38); }
.cif-form-head { padding: 34px 38px 26px; }
.cif-form-head h2 { margin: 0; color: var(--cif-brand-deep); font-size: 24px; line-height: 1.45; }
.cif-form-head p { margin: 8px 0 0; color: var(--cif-sub); font-size: 12.5px; }
.cif-required-mark { display: inline-block; margin-right: 6px; color: var(--cif-error); font-weight: 800; }

.cif-mode-switch { display: grid; grid-template-columns: 1fr 1fr; padding: 0 38px; border-bottom: 1px solid var(--cif-line); }
.cif-mode-switch a { position: relative; padding: 16px 10px 17px; color: var(--cif-sub); font-size: 14px; font-weight: 700; text-align: center; }
.cif-mode-switch a[aria-current="page"] { color: var(--cif-brand-deep); }
.cif-mode-switch a[aria-current="page"]::after { content: ""; position: absolute; right: 8px; bottom: -1px; left: 8px; height: 3px; border-radius: 999px 999px 0 0; background: var(--cif-brand); }

.cif-form { padding: 36px 38px 42px; }
.cif-block { margin: 0; padding: 0 0 36px; border: 0; }
.cif-block + .cif-block { padding-top: 36px; border-top: 1px solid var(--cif-line); }
.cif-block legend { display: flex; align-items: center; gap: 10px; width: 100%; margin-bottom: 24px; padding: 0; color: var(--cif-brand-deep); font-size: 18px; font-weight: 800; }
.cif-block legend > span:first-child { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 9px; background: var(--cif-brand-deep); color: #fff; font: 700 11px 'Rubik', sans-serif; }
.cif-grid-two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.cif-grid-follow { margin-top: 22px; }
.cif-field { min-width: 0; }
.cif-field label, .cif-fieldset-label { display: block; margin-bottom: 8px; color: #2a3b54; font-size: 13px; font-weight: 700; }
.cif-field label b, .cif-fieldset-label b, .cif-privacy b { margin-left: 5px; color: var(--cif-error); font-size: 11px; }
.cif-fieldset-label small { margin-left: 8px; color: var(--cif-sub); font-size: 11px; font-weight: 500; }
.cif-field input, .cif-field select, .cif-field textarea {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid #c8d4e4;
    border-radius: 10px;
    background: #fff;
    color: var(--cif-ink);
    font: inherit;
    font-size: 15px;
    transition: border-color .18s ease, box-shadow .18s ease;
}
.cif-field input, .cif-field select { min-height: 50px; padding: 11px 13px; }
.cif-field textarea { min-height: 150px; padding: 13px; line-height: 1.75; resize: vertical; }
.cif-field input:focus, .cif-field select:focus, .cif-field textarea:focus { outline: none; border-color: var(--cif-brand); box-shadow: 0 0 0 3px rgba(44, 79, 141, .13); }
.cif-field [aria-invalid="true"] { border-color: var(--cif-error); }

.cif-device-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.cif-device-grid label { cursor: pointer; }
.cif-device-grid input { position: absolute; opacity: 0; pointer-events: none; }
.cif-device-grid span { display: flex; min-height: 52px; align-items: center; gap: 8px; padding: 8px 11px; border: 1px solid #c8d4e4; border-radius: 10px; background: #fff; color: #33435a; font-size: 12px; font-weight: 700; transition: border-color .18s ease, background .18s ease, color .18s ease; }
.cif-device-grid svg { flex: none; width: 22px; height: 22px; color: var(--cif-brand); }
.cif-device-grid input:checked + span { border-color: var(--cif-brand); background: var(--cif-pale); color: var(--cif-brand-deep); }
.cif-device-grid input:focus-visible + span { outline: 3px solid rgba(44, 79, 141, .35); outline-offset: 2px; }
.cif-field-error { min-height: 18px; margin: 6px 0 0; color: var(--cif-error); font-size: 11.5px; }
.cif-buyback-fields { margin-top: 22px; }
.cif-block .cif-field:only-child, .cif-buyback-fields + .cif-field { margin-top: 22px; }

.cif-privacy { display: flex; align-items: flex-start; gap: 10px; padding: 22px 0; color: #394960; font-size: 13px; cursor: pointer; }
.cif-privacy input { flex: none; width: 19px; height: 19px; margin-top: 1px; accent-color: var(--cif-brand); }
.cif-privacy a { color: var(--cif-brand); text-decoration: underline; text-underline-offset: 3px; }
.cif-result { display: none; margin-bottom: 18px; padding: 14px 16px; border-radius: 10px; font-size: 13px; line-height: 1.7; }
.cif-result.is-error { display: block; border: 1px solid #e5baba; background: #fff2f2; color: #8f1111; }
.cif-result.is-success { display: block; border: 1px solid #b9dccb; background: #eef8f3; color: #145b3f; }
.cif-submit { display: flex; width: 100%; min-height: 54px; align-items: center; justify-content: center; gap: 10px; border: 0; border-radius: 999px; background: var(--cif-accent); color: #fff; font: 700 15px 'Noto Sans JP', sans-serif; cursor: pointer; box-shadow: 0 12px 24px -16px rgba(191, 1, 1, .7); transition: background .18s ease, transform .18s ease, box-shadow .18s ease; }
.cif-submit svg { width: 18px; height: 18px; }
.cif-submit:hover { background: #a50101; transform: translateY(-1px); box-shadow: 0 15px 28px -17px rgba(165, 1, 1, .75); }
.cif-submit:focus-visible { outline: 3px solid rgba(44, 79, 141, .45); outline-offset: 3px; }
.cif-submit:disabled { background: #9aa6b8; cursor: wait; transform: none; box-shadow: none; }
.cif-submit-note { margin: 12px auto 0; color: var(--cif-sub); font-size: 10.5px; line-height: 1.6; text-align: center; }
.cif-honeypot { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.cif-side { position: sticky; top: 104px; display: grid; gap: 16px; }
.cif-side section { padding: 24px; border-radius: 14px; background: #fff; box-shadow: 0 12px 28px -24px rgba(20, 46, 86, .44); }
.cif-side h2 { margin: 0; color: var(--cif-brand-deep); font-size: 16px; line-height: 1.55; }
.cif-side ul { display: grid; gap: 11px; margin: 18px 0 0; padding: 0; list-style: none; }
.cif-side li { position: relative; padding-left: 20px; color: #45546a; font-size: 12.5px; line-height: 1.65; }
.cif-side li::before { content: ""; position: absolute; top: .65em; left: 2px; width: 7px; height: 7px; border-radius: 50%; background: var(--cif-brand); }
.cif-side-security { display: flex; gap: 14px; background: var(--cif-brand-deep) !important; color: #fff; }
.cif-side-security > svg { flex: none; width: 30px; height: 30px; color: #9fc0f2; }
.cif-side-security h2 { color: #fff; }
.cif-side-security p, .cif-side-contact p { margin: 8px 0 0; color: var(--cif-sub); font-size: 12px; line-height: 1.7; }
.cif-side-security p { color: rgba(255, 255, 255, .76); }
.cif-side-contact a { display: block; margin-top: 9px; color: var(--cif-brand); font-weight: 700; }

::selection { background: #cddcf2; color: #132c54; }

@media (max-width: 960px) {
    .cif-hero-grid { grid-template-columns: 1fr; gap: 34px; }
    .cif-summary { max-width: 520px; }
    .cif-form-layout { grid-template-columns: 1fr; }
    .cif-side { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .cif-side-contact { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
    .cif-body .header { transform: translateX(-50%); opacity: 1; pointer-events: auto; }
    .cif-wrap { width: min(calc(100% - 32px), 1120px); }
    .cif-hero { padding: 112px 0 48px; }
    .cif-hero h1 { font-size: clamp(29px, 8.5vw, 38px); }
    .cif-hero-lead { font-size: 14.5px; }
    .cif-assurance { display: grid; gap: 10px; }
    .cif-form-section { padding: 42px 0 72px; }
    .cif-form-head { padding: 28px 22px 20px; }
    .cif-form-head h2 { font-size: 21px; }
    .cif-mode-switch { padding: 0 16px; }
    .cif-mode-switch a { padding: 14px 4px 15px; font-size: 12.5px; }
    .cif-form { padding: 30px 22px 34px; }
    .cif-grid-two { grid-template-columns: 1fr; gap: 18px; }
    .cif-device-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .cif-field input, .cif-field select, .cif-field textarea { font-size: 16px; }
    .cif-side { grid-template-columns: 1fr; }
    .cif-side-contact { grid-column: auto; }
}

@media (max-width: 420px) {
    .cif-summary { padding: 23px 21px; }
}

@media (prefers-reduced-motion: reduce) {
    .cif-submit, .cif-device-grid span, .cif-field input, .cif-field select, .cif-field textarea { transition: none; }
}