.hero {
    display: flex;
    align-items: center;
    min-height: clamp(380px, 32vw, 520px);
    padding: 86px 0 70px;
    background-color: #e9edff;
    background:
        linear-gradient(90deg, rgb(247 248 255 / 97%) 0%, rgb(247 248 255 / 90%) 35%, rgb(247 248 255 / 25%) 75%),
        url("../images/interness_background.gif") center right / cover no-repeat,
        #e9edff;
}
.hero__content { max-width: 660px; }
.hero__eyebrow { display: inline-flex; margin-bottom: 18px; padding: 7px 13px; border-radius: 999px; background: var(--color-soft-blue); color: var(--color-primary); font-size: 13px; font-weight: 900; }
.hero h1 { margin: 0; font-size: clamp(42px, 6vw, 72px); line-height: 1.05; letter-spacing: -0.07em; word-break: keep-all; }
.hero p { margin: 22px 0 0; max-width: 620px; color: var(--color-muted); font-size: 18px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.home-section { padding: 80px 0; }
.home-section__header { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 32px; }
.home-section__header h2 { margin: 0; font-size: clamp(30px, 4vw, 46px); line-height: 1.15; letter-spacing: -0.05em; }
.home-section__header p { max-width: 480px; margin: 0; color: var(--color-muted); }
.home-section__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.home-section__steps { list-style: none; margin: 0; padding: 0; }
.service-card, .process-card { padding: 26px; border: 1px solid var(--color-line); border-radius: 20px; background: var(--color-surface); box-shadow: var(--shadow-sm); }
.service-card__icon { display: grid; place-items: center; width: 48px; height: 48px; margin-bottom: 18px; border-radius: 16px; background: var(--color-soft-blue); color: var(--color-primary); font-weight: 900; }
.service-card h3, .process-card h3 { margin: 0 0 10px; font-size: 21px; letter-spacing: -0.03em; }
.service-card p, .process-card p { margin: 0; color: var(--color-muted); }
.process-tour { display: grid; grid-template-columns: 240px minmax(0, 1fr); height: clamp(400px, 42vw, 480px); border: 1px solid #d6dee5; background: #fff; }
.process-tour__nav { display: flex; flex-direction: column; min-width: 0; min-height: 0; padding: 32px 24px; border-right: 1px solid #d6dee5; overflow-y: auto; scrollbar-width: thin; }
.process-tour__index { margin: 0 0 32px; color: #7a8792; font-size: 11px; font-weight: 500; letter-spacing: .1em; }
.process-tour__links { display: grid; flex-shrink: 0; gap: 10px; margin: 0; padding: 0; list-style: none; }
.process-tour__link { display: flex; align-items: center; gap: 16px; min-height: 54px; padding: 12px 10px; border-left: 2px solid transparent; color: #75828e; font-size: 14px; transition: background 180ms ease, color 180ms ease; }
.process-tour__link span { color: #93a0ab; font-size: 11px; font-variant-numeric: tabular-nums; }
.process-tour__link:is(:hover, :focus-visible) { background: #f4f7fb; color: var(--color-primary); }
.process-tour__link[aria-current="step"] { border-left-color: var(--color-primary); background: var(--color-soft-blue); color: var(--color-primary); font-weight: 600; }
.process-tour__link[aria-current="step"] span { color: inherit; }
.process-tour__help { margin: auto 0 0; padding-top: 24px; color: #88949d; font-size: 11px; line-height: 1.8; }
.process-tour__viewport { position: relative; min-width: 0; min-height: 0; height: 100%; overflow-y: auto; scrollbar-gutter: stable; scrollbar-width: thin; scrollbar-color: #a8bbcf transparent; }
.process-tour__viewport:focus-visible { outline-offset: -4px; }
.process-tour__chapter { display: flex; flex-direction: column; justify-content: center; min-height: 100%; padding: 44px 56px; border-bottom: 1px solid #dce4eb; background: #fafbfc; }
.process-tour__chapter:last-child { border-bottom: 0; }
.process-tour__chapter--check { background: #edf3fa; }
.process-tour__chapter--delivery { background: #eaf4f4; }
.process-tour__chapter h3 { margin: 0 0 20px; color: #20354d; font-size: clamp(28px, 3.3vw, 40px); font-weight: 500; line-height: 1.3; letter-spacing: -.055em; word-break: keep-all; }
.process-tour__chapter > p { max-width: 480px; margin: 0; color: #6d7b89; font-size: 16px; line-height: 1.9; word-break: keep-all; }
.process-tour__detail { margin: 32px 0 0; padding-top: 20px; border-top: 1px solid rgb(var(--color-primary-rgb) / 14%); }
.process-tour__detail dt { margin-bottom: 6px; color: #8391a0; font-size: 11px; }
.process-tour__detail dd { margin: 0; color: #52667b; font-size: 13px; word-break: keep-all; }
.process-tour__chapter, .process-tour__link { overflow-wrap: anywhere; }
.inquiry-band { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 44px; border-radius: 30px; background: linear-gradient(135deg, var(--color-primary), #0CB9D7); color: #fff; box-shadow: var(--shadow-md); }
.inquiry-band h2 { margin: 0 0 10px; font-size: clamp(28px, 4vw, 42px); letter-spacing: -0.05em; }
.inquiry-band p { margin: 0; color: rgb(255 255 255 / 85%); }
.inquiry-band .inquiry-band__notice { margin-top: 12px; font-size: 14px; }
.inquiry-band__button { display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; gap: 18px; min-height: 48px; padding: 8px 9px 8px 22px; border: 1px solid #fff; border-radius: 999px; background: #fff; color: var(--color-primary); font-size: 14px; font-weight: 600; line-height: 1.4; letter-spacing: -0.025em; transition: background 180ms ease; }
.inquiry-band__button-icon { display: grid; place-items: center; flex-shrink: 0; width: 32px; height: 32px; border-radius: 50%; background: var(--color-primary); color: #fff; transition: transform 220ms ease; }
.inquiry-band__button:is(:hover, :focus-visible) { background: #effbff; }
.inquiry-band__button:is(:hover, :focus-visible) .inquiry-band__button-icon { transform: rotate(-45deg); }
.inquiry-band__button:focus-visible { outline: 2px solid #fff; outline-offset: 4px; }
.inquiry-band__button:active { scale: .98; }

@media (max-width: 900px) {
    .home-section__grid { grid-template-columns: 1fr; }
    .home-section__header, .inquiry-band { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 640px) {
    .hero, .home-section { padding: 54px 0; }
    .hero {
        background-image:
            linear-gradient(90deg, rgb(247 248 255 / 94%), rgb(247 248 255 / 78%)),
            url("../images/interness_background.gif");
    }
    .hero__actions { flex-direction: column; }
    .inquiry-band { padding: 28px; }
    .inquiry-band__button { width: 100%; justify-content: space-between; }
    .process-tour { grid-template-columns: 112px minmax(0, 1fr); height: 440px; }
    .process-tour__nav { padding: 24px 10px; }
    .process-tour__index { margin-bottom: 24px; font-size: 9px; letter-spacing: .04em; }
    .process-tour__link { flex-direction: column; align-items: flex-start; gap: 5px; padding: 10px 7px; font-size: 12px; word-break: keep-all; }
    .process-tour__help { font-size: 10px; }
    .process-tour__chapter { padding: 28px 22px; }
    .process-tour__chapter h3 { margin: 0 0 16px; font-size: 27px; }
    .process-tour__chapter > p { font-size: 14px; }
    .process-tour__detail { margin-top: 24px; padding-top: 16px; }
    .process-tour__detail dd { font-size: 12px; }
}
@media (prefers-reduced-motion: reduce) {
    .inquiry-band__button, .inquiry-band__button-icon { transition: none; }
    .process-tour__link { transition: none; }
}