/* =========================================
   CSS 變數參數化設計
========================================= */
:root {
    --color-brown:          #40220f; /* 深咖啡色 */
    --color-brown-light:    #6a3906; /* 淺咖啡色 */
    --color-gold:           #ffd700; /* 金色 */
    --color-white:          #ffffff; /* 純白色 */
    --color-black:          #000000; /* 純黑色 */
    --color-dark-blue:      #0f172a; /* 深藍色 */
    --color-cream:          #fffdf5; /* 奶油色/米白色 */
    --color-cream-dark:     #f2ebd9; /* 深奶油色/淺沙色 */
    --color-text-main:      #2c241b; /* 深棕灰色 */
    --color-text-sub:       #5d554a; /* 灰褐色 */

    --radius-sm:            0.5rem;
    --radius-md:            1rem;
    --radius-lg:            2rem;

    --ease-brand:           cubic-bezier(.25, .46, .45, .94); 
    --duration-fast:        0.2s;
    --duration-normal:      0.4s;
    --transition-base:      all var(--duration-normal) var(--ease-brand);

    --glass-shadow:         0 12px 40px rgba(0, 51, 102, 0.08);
}

*, *::before, *::after {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

img, video, iframe, canvas {
    display: block;
    max-width: 100%;
    height: auto;
}

body {
    font-family: "Roboto", "Helvetica Neue", "Inter", "PingFang TC", "Microsoft JhengHei", sans-serif;
    color: var(--color-text-main);
    background: var(--color-cream);
    line-height: 1.6;
}

body.menu-open {
    overflow: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* =========================================
	返回按鈕 
========================================= */
.back-btn {
    position: fixed;
    top: 1.5rem;
    left: 1.5rem;
    color: white;
    text-decoration: none;
    font-size: 0.9375rem;
    padding: 0.625rem 1.25rem;
    border-radius: 1.875rem;
    transition: var(--transition-base);
    z-index: 1000;
    background-color: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(4px);
}

.back-btn:hover {
    background-color: var(--color-black);
    transform: translateX(-3px);
}

@media (max-width: 48rem) {
	.back-btn {
		font-size: 0.6rem;
	}
}

/* =========================================
   Banner
========================================= */
.about-page-main {
    background-color: var(--color-cream);
    min-height: calc(100vh - 300px);
}

.about-hero {
    background-color: var(--color-brown);
    color: var(--color-white);
    padding: 4rem 0;
    text-align: center;
    border-bottom: 4px solid var(--color-gold);
    margin-bottom: 3rem;
}

.about-hero .page-title {
    font-size: 2.5rem;
    color: var(--color-gold);
    margin-bottom: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.about-hero .page-subtitle {
    font-size: 1.05rem;
    color: var(--color-cream-dark);
    opacity: 0.9;
}

/* =========================================
   Clinic Etiquette Notice (禁葷食提醒區塊)
========================================= */
.about-extended-content{
	padding-bottom: 3rem;
}

.clinic-etiquette-notice {
    margin-top: 2.5rem;
    background-color: rgba(255, 255, 255, 0.65);
    border: 1px solid rgba(204, 172, 13, 0.3); /* 使用淡金色邊框 */
    border-left: 5px solid var(--color-gold);
    border-radius: var(--radius-sm);
    padding: 1.5rem 2rem;
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
    backdrop-filter: blur(4px); /* 微微的毛玻璃效果 */
}

.notice-icon {
    flex-shrink: 0;
    color: var(--color-gold);
    width: 1.75rem;
    height: 1.75rem;
    margin-top: 0.1rem; /* 微調對齊文字第一行 */
}

.notice-icon svg {
    width: 100%;
    height: 100%;
}

.notice-text h3 {
    color: var(--color-brown);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.notice-text p {
    color: var(--color-text-main);
    font-size: 0.975rem;
    line-height: 1.6;
    margin: 0;
}

.notice-text strong {
    color: #b73229; /* 稍微帶一點磚紅色強調，但不要太刺眼 */
    font-weight: 600;
}

@media (max-width: 48rem) {
    .clinic-etiquette-notice {
        padding: 1.25rem;
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .notice-icon {
        margin-top: 0;
    }
}

/* =========================================
   About Grid & Cards
========================================= */
.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem; 			/* 卡片之間的間距，可依喜好微調 */
    margin-bottom: 3rem; 	/* 底部留白 */
    align-items: stretch; 	/* 讓同一排的卡片高度自動對齊 */
}

.about-card {
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--glass-shadow);
    border-top: 4px solid var(--color-brown-light);
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
    overflow: hidden; /* 確保圖片四角圓角不超出 */
}

.about-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(64, 34, 15, 0.08);
    border-top-color: var(--color-gold);
}

/* 圖片容器：由此處控制展示比例 */
.card-image {
    width: 100%;
	
    /* 這裡可以隨意調整想要的比例 */
    aspect-ratio: 16 / 9; 
    overflow: hidden;
    position: relative;
    background-color: var(--color-cream-dark); /* 圖片載入前的底色 */
}

/* 圖片本體：確保填滿容器且不變形 */
.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover; 
    transition: transform 0.6s var(--ease-brand);
}

.about-card:hover .card-image img {
    transform: scale(1.05); /* Hover 時圖片微放大增加層次感 */
}

/* 下方文字區塊 */
.card-body {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1; /* 確保內容較少的卡片也能將高度撐滿，視覺對齊 */
}

.card-title {
    color: var(--color-brown);
    font-size: 1.35rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.card-text {
    color: var(--color-text-sub);
    font-size: 0.975rem;
    line-height: 1.75;
    text-align: justify;
}

.card-text strong {
    color: var(--color-brown-light);
    font-weight: 600;
}

@media (max-width: 48rem) {
	.about-content-section{
		padding: 0 auto;
	}
	.about-grid {
		grid-template-columns: repeat(1, 1fr);
	}
    .card-body {
        padding: 1.5rem;
    }
}

/* =========================================
   Clinic Mission Section
========================================= */
.clinic-mission-dark-fluid {
    background-color: #2e8b57; /* 純黑背景，打破 Grid 視覺疲勞 */
    padding: 10rem 0;
    margin: 4rem 0 5rem 0;
    width: 100%;
}

.mission-dark-wrapper {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.mission-dark-title {
    color: var(--color-gold);
    font-size: 5rem; /* 大膽的字級大小 */
    font-weight: 600;
    letter-spacing: 0.15em;
    margin-bottom: 2.5rem;
    position: relative;
}

.mission-dark-text {
    color: var(--color-cream); 
    font-size: 1.25rem;
    line-height: 2.2;
    letter-spacing: 0.08rem;
}

/* --- 滾動文字浮現動畫核心 (Scroll Reveal) --- */
.reveal-item {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 1.2s cubic-bezier(0.215, 0.610, 0.355, 1.000), 
                transform 1.2s cubic-bezier(0.215, 0.610, 0.355, 1.000);
    will-change: opacity, transform;
}

/* 當 JS 偵測到進入視窗時，加上 active 類名觸發優雅上浮 */
.reveal-item.active {
    opacity: 1;
    transform: translateY(0);
}

/* --- RWD --- */
@media (max-width: 48rem) {
    .clinic-mission-dark-fluid {
        padding: 6rem auto;
        margin: 3rem 0;
    }
    
    .mission-dark-title {
        font-size: 2.25rem;
        margin-bottom: 1.5rem;
        letter-spacing: 0.1em;
    }
    
    .mission-dark-text {
        font-size: 1.05rem;
        line-height: 2;
    }
    
	/* 手機版畫寬不足時，取消強制換行讓文字自然流動 */
    .mission-dark-text br {
        display: none;
    }
}

/* =========================================
   Clinic Equipment Section
========================================= */
.clinic-equipment-section {
    background-color: var(--color-cream); 
    padding: 2rem 0;
    overflow: hidden;
}

.equipment-grid-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.equipment-gallery-col {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    position: relative;
}

.equipment-img-box {
    width: 85%;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(64, 34, 15, 0.06);
    transition: transform var(--duration-normal) var(--ease-brand);
}

.equipment-img-box img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}

/* --- 右側內容與列表 --- */
.equipment-content-col {
    padding-left: 1rem;
}

.equipment-header {
    margin-bottom: 3rem;
}

.equipment-main-title {
    color: var(--color-brown);
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.title-line {
    width: 60px;
    height: 3px;
    background-color: var(--color-gold);
}

/* --- 8大設備清單 --- */
.equipment-menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.equipment-menu-item {
    display: flex;
    align-items: center;
    padding: 1.2rem 0;
    border-bottom: 1px solid rgba(64, 34, 15, 0.12);
    transition: padding-left var(--duration-fast) ease, border-color var(--duration-fast) ease;
}

.equipment-menu-item .item-index {
    font-size: 0.9rem;
    color: var(--color-gold);
    font-weight: 700;
    margin-right: 1.5rem;
    width: 24px;
}

.equipment-menu-item .item-name {
    font-size: 1.2rem;
    color: var(--color-text-main);
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: color var(--duration-fast) ease;
}

.equipment-menu-item:hover {
    padding-left: 0.75rem;
    border-bottom-color: var(--color-brown);
}

/* --- RWD --- */
@media (max-width: 64rem) {
    .equipment-grid-wrapper {
        gap: 3rem;
    }
    .equipment-main-title {
        font-size: 2rem;
    }
}

@media (max-width: 48rem) {
    .clinic-equipment-section {
        padding: 5rem 0;
    }
    
    /* 行動裝置上自動轉為單欄，圖在上、字在下 */
    .equipment-grid-wrapper {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    
    .equipment-img-box {
        width: 100%;
    }
    
    .equipment-content-col {
        padding-left: 0;
    }
    
    .equipment-main-title {
        font-size: 1.8rem;
    }
    
    .equipment-menu-item .item-name {
        font-size: 1.1rem;
    }
}

/* =========================================
   Clinic Location Section
========================================= */
.clinic-location-section {
    background-color: var(--color-white);
    padding: 8rem 0;
    border-top: 1px solid rgba(64, 34, 15, 0.05);
}

.location-wrapper {
    max-width: 900px; 
    margin: 0 auto;
}

.location-header {
    text-align: center;
    margin-bottom: 4.5rem;
}

.location-subtitle {
    display: block;
    color: var(--color-brown-light);
    font-size: 0.85rem;
    letter-spacing: 0.2em;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.location-main-title {
    color: var(--color-brown);
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

/* 縱向彈性資訊流 */
.traffic-info-stream {
    display: flex;
    flex-direction: column;
    gap: 3.5rem;
    margin-bottom: 4rem;
}

/* 利用左側導線取代厚重卡片 */
.traffic-block {
    display: flex;
    align-items: flex-start;
    border-left: 3px solid var(--color-cream-dark);
    padding-left: 2.5rem;
    transition: border-color var(--duration-normal) ease;
}

.traffic-block:hover {
    border-left-color: var(--color-brown-light);
}

.traffic-type {
    width: 160px;
    flex-shrink: 0;
}

.traffic-type .type-icon {
    font-size: 1.5rem;
    display: block;
    margin-bottom: 0.4rem;
}

.traffic-type .type-title {
    font-size: 1.25rem;
    color: var(--color-brown);
    font-weight: 600;
    letter-spacing: 0.05em;
}

.traffic-details {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.detail-group .detail-label {
    font-size: 0.9rem;
    color: var(--color-brown-light);
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: inline-block;
    background-color: var(--color-cream);
    padding: 0.2rem 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(106, 57, 6, 0.1);
}

.detail-group .detail-text {
    font-size: 1.05rem;
    color: var(--color-text-main);
    line-height: 1.8;
    text-align: justify;
}

.detail-group .detail-text strong {
    color: var(--color-brown);
    font-weight: 600;
}

/* 貼心小叮嚀橫幅 */
.traffic-tip-banner {
    background-color: var(--color-cream);
    border-radius: var(--radius-md);
    padding: 2rem;
    text-align: center;
    border: 1px dashed rgba(106, 57, 6, 0.2);
    margin-top: 0.5rem;
}

.tip-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.tip-tag {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-white);
    background-color: #b73229;
    padding: 0.25rem 1rem;
    border-radius: 50px;
    letter-spacing: 0.05em;
}

.tip-text {
    font-size: 1.05rem;
    color: var(--color-brown);
    font-weight: 500;
    line-height: 1.6;
}

/* --- 16:9 圖片安全外框容器 --- */
.location-map-container {
    width: 100%;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--glass-shadow);
    border: 1px solid rgba(64, 34, 15, 0.06);
    transition: transform var(--duration-normal) var(--ease-brand), box-shadow var(--duration-normal) ease;
}

.location-map-container:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(64, 34, 15, 0.1);
}

.map-ratio-box {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: var(--color-cream-dark);
}

.map-ratio-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* --- RWD --- */
@media (max-width: 48rem) {
    .clinic-location-section {
        padding: 5rem 0;
    }

    .location-header {
        margin-bottom: 3rem;
    }

    .location-main-title {
        font-size: 2rem;
    }

    .traffic-block {
        flex-direction: column;
        gap: 1.25rem;
        padding-left: 1.5rem;
    }

    .traffic-type {
        width: 100%;
    }

    .detail-group .detail-text {
        font-size: 0.975rem;
    }

    .traffic-tip-banner {
        padding: 1.5rem 1.25rem;
    }

    .tip-text {
        font-size: 0.95rem;
    }
}

/* =========================================
   Floating UI (FAB & Back To Top)
========================================= */
.side-fab-group {
	position: fixed;
	right: 1.25rem;
	bottom: 1.875rem; 
	display: flex;
	flex-direction: column;
	gap: 1rem;
	z-index: 998;
	align-items: flex-end; 
	opacity: 0;
	visibility: hidden;
	transform: translateY(20px);
	transition: all var(--duration-normal) ease;
}

.side-fab-group.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.fab-item {
    display: flex;
    align-items: center;
    justify-content: flex-end; 
    width: 3rem; height: 3rem;
    padding: 0 0.75rem; 
    background: var(--color-gold); 
    color: var(--color-brown);
    box-shadow: 0 0.25rem 0.5rem rgba(0, 0, 0, 0.4);
    border-radius: 2rem; 
    cursor: pointer; border: none;
    overflow: hidden; white-space: nowrap;
    transition: width 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), background-color var(--duration-normal) ease;
}

.fab-item svg {
	width: 1.5rem;
	height: 1.5rem;
	flex-shrink: 0;
	transition: transform 0.3s ease;
}

.fab-item::before {
	content: attr(title);
	margin-right: 0.75rem;
	font-size: 0.95rem;
	font-weight: 600;
	opacity: 0;
	transform: translateX(10px);
	transition: all 0.3s ease;
}

.back-to-top {
    fill: none;
    stroke: currentColor;
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* --- RWD --- */
@media (min-width: 48rem) {
	.fab-item:hover {
		width: 9rem;
		background-color: #ffe066;
	}

	.fab-item:hover::before {
		opacity: 1;
		transform: translateX(0);
		transition-delay: 0.1s;
	}

	/* BackToTop 不延展寬度 */
	.fab-item.back-to-top:hover {
		width: 3rem;
		background-color: #ffe066;
		transform: translateY(-4px);
	}

	.fab-item.back-to-top::before {
		display: none;
	}
}

@media (max-width: 48rem) {
	.fab-item {
		width: 2.75rem;
		height: 2.75rem;
		justify-content: center;
		padding: 0;
	}

	.fab-item::before {
		display: none;
	}

	.side-fab-group {
		bottom: 1.25rem;
		right: 0.9375rem;
	}
}

/* =========================================
   Footer
========================================= */
footer {
	background-color: var(--color-brown);
	color: var(--color-white);
	padding-top: 1rem;
}

.footer-grid {
	display: grid;
	grid-template-columns: 1fr 300px;
	gap: 3rem;
	padding-bottom: 1rem;
	align-items: start;
}

.footer-heading {
	color: var(--color-gold);
	font-size: 1.25rem;
	margin-bottom: 1.5rem;
}

.footer-contact p {
	margin-bottom: 0.8rem;
	color: rgba(255, 255, 255, 0.9);
}

.nhi-logo-wrapper {
	margin-top: 1rem;
	display: inline-block;
}

.footer-bottom {
	background-color: rgba(0, 0, 0, 0.2);
	padding: 1rem 0;
}

.copyright-row {
	display: flex;
	justify-content: space-between;
	align-items: center;
	font-size: 0.9rem;
	color: rgba(255, 255, 255, 0.6);
}

/* --- RWD --- */
@media (max-width: 48rem) {
	.footer-grid {
		grid-template-columns: 1fr;
		gap: 2.5rem;
		text-align: center;
	}

	.copyright-row {
		flex-direction: column;
		gap: 0.5rem;
	}
}