*,
*::before,
*::after { box-sizing: border-box; }

body.page-service {
    margin: 0;
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    background: #0b0b0b;
    color: #fff;
}

.faq-page {
    min-height: 100vh;
    background: #0b0b0b;
}

.faq-inner {
    width: min(900px, calc(100% - 48px));
    margin: 0 auto;
}

.faq-hero {
    padding: 152px 0 62px;
}

.faq-hero .faq-inner {
    text-align: center;
}

.faq-hero h1 {
    max-width: 820px;
    margin: 0 auto;
    font-size: 56px;
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: 0;
}

.faq-hero p:last-child {
    max-width: 680px;
    margin: 12px auto 0;
    color: rgba(255, 255, 255, 0.66);
    font-size: 17px;
    line-height: 1.8;
}

.faq-list {
    padding-bottom: 110px;
}

.faq-list details {
    margin: 0 -18px;
    padding: 0 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    transition: background 0.24s ease;
}

.faq-list details:hover {
    background: rgba(255, 255, 255, 0.05);
}

.faq-list details:last-child {
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.faq-list summary {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding-right: 34px;
    padding-top: 26px;
    padding-bottom: 26px;
    color: #fff;
    font-size: 20px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
}

.faq-list summary::-webkit-details-marker {
    display: none;
}

.faq-list summary::before,
.faq-list summary::after {
    content: '';
    position: absolute;
    top: 50%;
    right: 0;
    width: 18px;
    height: 2px;
    background: #ff2c2c;
    transform-origin: center;
    transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.2s ease;
}

.faq-list summary::before {
    transform: translateY(-50%) rotate(0deg);
}

.faq-list summary::after {
    transform: translateY(-50%) rotate(90deg);
    opacity: 1;
}

.faq-list details.is-open summary::after {
    transform: translateY(-50%) rotate(0deg);
    opacity: 0;
}

.faq-answer {
    height: 0;
    overflow: hidden;
    opacity: 0;
    transition: height 0.42s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.28s ease;
}

.faq-list details.is-open .faq-answer {
    opacity: 1;
}

.faq-list p {
    max-width: 840px;
    margin: 0 0 28px;
    padding-top: 2px;
    color: rgba(255, 255, 255, 0.62);
    font-size: 15px;
    line-height: 1.85;
}

.faq-text-link,
.faq-text-link:visited {
    color: #ff2c2c;
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
}

.fade-in-up {
    --faq-reveal-delay: 0s;
    opacity: 0;
    transform: translateY(34px);
    will-change: opacity, transform;
}

.fade-in-up.animate {
    animation-name: faqFadeInUp;
    animation-duration: 0.84s;
    animation-delay: var(--faq-reveal-delay);
    animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
    animation-fill-mode: both;
}

@keyframes faqFadeInUp {
    from {
        opacity: 0;
        transform: translateY(34px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-delay-1 { --faq-reveal-delay: 0.16s; }
.animate-delay-2 { --faq-reveal-delay: 0.32s; }
.animate-delay-3 { --faq-reveal-delay: 0.48s; }
.animate-delay-4 { --faq-reveal-delay: 0.64s; }
.animate-delay-5 { --faq-reveal-delay: 0.8s; }
.animate-delay-6 { --faq-reveal-delay: 0.96s; }
.animate-delay-7 { --faq-reveal-delay: 1.12s; }
.animate-delay-8 { --faq-reveal-delay: 1.28s; }
.animate-delay-9 { --faq-reveal-delay: 1.44s; }
.animate-delay-10 { --faq-reveal-delay: 1.6s; }
.animate-delay-11 { --faq-reveal-delay: 1.76s; }

.scroll-hint-overlay {
    position: fixed;
    left: 50%;
    bottom: 80px;
    z-index: 100005;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%);
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.scroll-hint-overlay.visible {
    opacity: 1;
    visibility: visible;
}

@keyframes serviceFloating {
    0% { transform: translateY(0); }
    50% { transform: translateY(10px); }
    100% { transform: translateY(0); }
}

.scroll-hint-overlay .mouse-shape {
    position: relative;
    width: 26px;
    height: 42px;
    border: 2px solid #fff;
    border-radius: 13px;
    box-sizing: border-box;
    animation: serviceFloating 2s infinite ease-in-out;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 1)) drop-shadow(0 0 15px rgba(0, 0, 0, 0.9));
}

.scroll-hint-overlay .mouse-shape::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #fff;
}

.scroll-hint-overlay .mouse-shape::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 2px;
    height: 12px;
    background: #fff;
    transform: translateX(-50%);
}

body.page-service .page-footer {
    position: relative !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    background: rgba(10, 10, 10, 0.96) !important;
}

body.light-mode.page-service,
body.light-mode .faq-page {
    background: #fcfcfc;
    color: #111;
}

body.light-mode .faq-page {
    background: #fcfcfc;
}

body.light-mode .faq-hero p:last-child,
body.light-mode .faq-list p {
    color: rgba(0, 0, 0, 0.62);
}

body.light-mode .faq-list details,
body.light-mode .faq-list details:last-child {
    border-color: rgba(0, 0, 0, 0.1);
}

body.light-mode .faq-list details:hover {
    background: rgba(0, 0, 0, 0.05);
}

body.light-mode .faq-list summary {
    color: #111;
}

body.light-mode.page-service .page-footer {
    background: #f5f5f5 !important;
}

@media (max-width: 640px) {
    .faq-inner {
        width: min(100% - 32px, 900px);
    }

    .faq-hero {
        padding: 118px 0 52px;
    }

    .faq-hero h1 {
        font-size: 48px;
    }

    .faq-hero p:last-child {
        font-size: 15px;
    }

    .faq-list {
        padding-bottom: 88px;
    }

    .faq-list summary {
        align-items: flex-start;
        padding: 22px 34px 22px 0;
        font-size: 18px;
        line-height: 1.45;
    }
}

@media (max-width: 480px) {
    .faq-hero h1 {
        font-size: 40px;
    }
}