.gradient-gold-text {
    background: linear-gradient(135deg, #C5A059, #b45309);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.card-transition {
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.card-transition:hover {
    transform: translateY(-6px);
}

.city-tab.active {
    background-color: #002b5b;
    color: #ffffff;
    border-color: #002b5b;
}

/* 載入與滾動動畫 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    opacity: 0;
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.delay-100 {
    animation-delay: 100ms;
}

.delay-200 {
    animation-delay: 200ms;
}

.delay-300 {
    animation-delay: 300ms;
}

.delay-400 {
    animation-delay: 400ms;
}

/* FAQ 問題卡片牌堆（收合疊成一落，點按展開） */
.faq-deck {
    position: relative;
}

.faq-deck .faq-cards {
    position: relative;
}

.faq-deck .faq-card {
    background: #fff;
    border: 1px solid #e2e2e2;
    border-radius: 1rem;
    padding: 1.1rem 1.35rem;
    box-shadow: 0 14px 34px -14px rgba(0, 43, 91, .28);
    transition: transform .6s cubic-bezier(0.16, 1, 0.3, 1), box-shadow .3s ease;
}

.faq-deck:not(.is-open) .faq-cards {
    min-height: 230px;
}

.faq-deck:not(.is-open) .faq-card {
    position: absolute;
    left: 50%;
    top: 26px;
    width: min(30rem, 90%);
    cursor: default;
}

.faq-deck:not(.is-open) .faq-card:nth-child(1) {
    transform: translateX(-50%) rotate(-8deg) translate(-18px, 2px);
    z-index: 1;
}

.faq-deck:not(.is-open) .faq-card:nth-child(2) {
    transform: translateX(-50%) rotate(6deg) translate(16px, -4px);
    z-index: 2;
}

.faq-deck:not(.is-open) .faq-card:nth-child(3) {
    transform: translateX(-50%) rotate(-4deg) translate(-8px, 8px);
    z-index: 3;
}

.faq-deck:not(.is-open) .faq-card:nth-child(4) {
    transform: translateX(-50%) rotate(9deg) translate(20px, 4px);
    z-index: 4;
}

.faq-deck:not(.is-open) .faq-card:nth-child(5) {
    transform: translateX(-50%) rotate(-3deg) translate(2px, -2px);
    z-index: 5;
}

/* 手機版縮小卡牌寬度與旋轉平移，防止產生左右滾動條 */
@media (max-width: 767px) {
    .faq-deck:not(.is-open) .faq-card {
        width: min(30rem, 80%);
    }

    .faq-deck:not(.is-open) .faq-card:nth-child(1) {
        transform: translateX(-50%) rotate(-4deg) translate(-8px, 2px);
    }

    .faq-deck:not(.is-open) .faq-card:nth-child(2) {
        transform: translateX(-50%) rotate(3deg) translate(8px, -2px);
    }

    .faq-deck:not(.is-open) .faq-card:nth-child(3) {
        transform: translateX(-50%) rotate(-2deg) translate(-4px, 4px);
    }

    .faq-deck:not(.is-open) .faq-card:nth-child(4) {
        transform: translateX(-50%) rotate(4deg) translate(10px, 2px);
    }

    .faq-deck:not(.is-open) .faq-card:nth-child(5) {
        transform: translateX(-50%) rotate(-1deg) translate(1px, -1px);
    }
}

.faq-deck.is-open .faq-cards {
    display: flex;
    flex-direction: column;
    gap: .85rem;
    max-width: 42rem;
    margin: 0 auto;
}

.faq-deck.is-open .faq-card {
    position: relative;
    transform: none;
    animation: faq-rise .5s cubic-bezier(0.16, 1, 0.3, 1) backwards;
    animation-delay: calc(var(--i) * 75ms);
}

.faq-deck:not(.is-open) .faq-answer {
    display: none;
}

@keyframes faq-rise {
    from {
        opacity: 0;
        transform: translateY(16px) scale(.97);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

.faq-open-btn {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 30;
    white-space: nowrap;
}

.faq-deck.is-open .faq-open-btn {
    display: none;
}

.faq-close-btn {
    display: none;
}

.faq-deck.is-open .faq-close-btn {
    display: inline-flex;
}

@media (prefers-reduced-motion: reduce) {
    .faq-deck .faq-card {
        transition: none;
    }

    .faq-deck.is-open .faq-card {
        animation: none;
    }
}

@keyframes pulse-gold {

    0%,
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(197, 160, 89, 0.4);
    }

    50% {
        transform: scale(1.15);
        box-shadow: 0 0 0 8px rgba(197, 160, 89, 0);
    }
}

.timeline-dot-active {
    animation: pulse-gold 2s infinite;
}

/* SVG 插圖與微動畫 */
@keyframes float-slow {

    0%,
    100% {
        transform: translateY(0px) rotate(0deg);
    }

    50% {
        transform: translateY(-12px) rotate(1deg);
    }
}

@keyframes float-medium {

    0%,
    100% {
        transform: translateY(0px) rotate(0deg);
    }

    50% {
        transform: translateY(-8px) rotate(-2deg);
    }
}

@keyframes dash-run {
    to {
        stroke-dashoffset: -24;
    }
}

@keyframes glow-pulse {

    0%,
    100% {
        opacity: 0.15;
        transform: scale(1);
    }

    50% {
        opacity: 0.35;
        transform: scale(1.08);
    }
}

.animate-float-slow {
    animation: float-slow 6s ease-in-out infinite;
}

.animate-float-medium {
    animation: float-medium 4s ease-in-out infinite;
}

.animate-dash-run {
    stroke-dasharray: 6, 6;
    animation: dash-run 1.5s linear infinite;
}

.animate-glow {
    animation: glow-pulse 4s ease-in-out infinite;
    transform-origin: center;
}