:root {
    --color-text: #1a1a1a;
    --color-background: #ffffff;
    --color-primary: #0052FF; /* 一個現代、專業的藍色作為品牌強調色 */
    --color-light-gray: #f7f7ff; /* 帶一點藍色的淺灰，更有科技感 */
    --color-medium-gray: #e5e5e5;
    --color-dark-gray: #555555;
    --star-color: #FFC700;
}
body {
    font-family: 'Inter', sans-serif;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4, .font-serif {
    font-family: 'Playfair Display', serif;
}

.fade-in-section {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-in-section.is-visible {
    opacity: 1;
    transform: translateY(0);
}
.main-cta {
    background-color: var(--color-primary);
    color: white;
    transition: background-color 0.3s;
}
.main-cta:hover {
    background-color: #0045d1;
}
.whatsapp-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #25D366;
    color: white;
    font-weight: bold;
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    transition: background-color 0.3s;
}
.whatsapp-cta:hover {
    background-color: #1EBE57;
}
.whatsapp-cta i {
    margin-right: 0.5rem;
}

/* 方針 2: Features Hover 效果 */
.feature-card img {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.feature-card:hover img {
    transform: scale(1.03);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.service-badge {
    background-color: white;
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}
.service-badge:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

.modal {
    transition: opacity 0.3s ease;
}
.modal-content {
    transition: transform 0.3s ease;
}
.modal-body::-webkit-scrollbar {
    width: 8px;
}
.modal-body::-webkit-scrollbar-thumb {
    background-color: var(--color-medium-gray);
    border-radius: 4px;
}
.modal-body::-webkit-scrollbar-track {
    background-color: var(--color-light-gray);
}

:target::before {
  content: "";
  display: block;
  height: 80px;
  margin: -80px 0 0;
}

#lang-dropdown {
    transition: opacity 0.2s ease-in-out, transform 0.2s ease-in-out;
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
}
#lang-dropdown.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* 評價輪播樣式 */
.testimonial-slide {
    min-width: 100%;
    box-sizing: border-box;
}
.star-rating .fa-star {
    color: var(--star-color);
}
.testimonial-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background-color 0.3s;
}
.testimonial-dot.active {
    background-color: white;
}

/* 進階強化: WhatsApp 浮動按鈕樣式 */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: #25D366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 3px #999;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}
.whatsapp-float:hover {
    transform: scale(1.1);
}

/* 新增的車輛選擇卡片樣式 */
.vehicle-card {
    display: flex;
    align-items: center;
    padding: 1rem;
    border: 1px solid var(--color-medium-gray);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
}

.vehicle-card.selected {
    border-color: var(--color-primary);
    background-color: var(--color-light-gray);
    box-shadow: 0 4px 10px rgba(0, 82, 255, 0.1);
}

.vehicle-card img {
    width: 80px;
    margin-right: 1rem;
}

.vehicle-card .info {
    flex-grow: 1;
}

.vehicle-card .info h4 {
    font-weight: bold;
    font-size: 1rem;
    color: var(--color-text);
}

.vehicle-card .info p {
    font-size: 0.875rem;
    color: var(--color-dark-gray);
}

.vehicle-card .price {
    font-weight: bold;
    font-size: 1.125rem;
    color: var(--color-text);
    text-align: right;
}

.vehicle-card .price span {
    font-size: 0.75rem;
    color: var(--color-dark-gray);
    font-weight: normal;
    display: block;
}