/* 首頁專用CSS樣式 - 中醫藥健康資訊網 */

/* CSS變數 - 設計系統 */
:root {
    /* 色彩系統 - 中醫藥主題 */
    --color-primary: #2a7d5c;      /* 主要綠色 - 代表自然、健康 */
    --color-primary-light: #4c9d7d;
    --color-primary-dark: #1a5d3c;
    
    --color-secondary: #d4a55e;    /* 次要金色 - 代表傳統、智慧 */
    --color-secondary-light: #e6c58e;
    --color-secondary-dark: #b2853e;
    
    --color-accent: #8b4513;       /* 強調棕色 - 代表中藥材 */
    --color-accent-light: #a56533;
    --color-accent-dark: #6a3513;
    
    /* 中性色 */
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-lighter: #999999;
    
    --color-bg: #ffffff;
    --color-bg-light: #f8f9fa;
    --color-bg-lighter: #f1f3f5;
    
    --color-border: #e9ecef;
    --color-border-light: #f1f3f5;
    
    /* 陰影 */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.15);
    
    /* 圓角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* 間距 */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    
    /* 字體大小 */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
}

/* 重置與基礎樣式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans TC', 'Microsoft JhengHei', sans-serif;
    color: var(--color-text);
    line-height: 1.6;
    background-color: var(--color-bg);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* 按鈕樣式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: var(--text-base);
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: var(--text-lg);
}

/* 區塊標題 */
.section-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: var(--space-sm);
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--color-secondary);
    border-radius: var(--radius-full);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-light);
    text-align: center;
    margin-bottom: var(--space-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 英雄區塊 */
.hero-section {
    padding: var(--space-2xl) 0;
    background: linear-gradient(135deg, #f8f5f0 0%, #e8f5e9 100%);
    position: relative;
    overflow: hidden;
}

.hero-section .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-xl);
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: var(--text-xl);
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
    width: 100%;
    max-width: 600px;
    height: 300px;
}

.hero-decoration {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.decoration-item {
    font-size: 4rem;
    opacity: 0.3;
    animation: float 3s ease-in-out infinite;
}

.herb-icon {
    animation-delay: 0s;
}

.acupuncture-icon {
    animation-delay: 1s;
}

.book-icon {
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* 特色服務區塊 */
.features-section {
    padding: var(--space-2xl) 0;
    background-color: var(--color-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.feature-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-light);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

.feature-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-bottom: var(--space-sm);
}

.feature-description {
    color: var(--color-text-light);
    margin-bottom: var(--space-lg);
    flex-grow: 1;
}

.feature-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease;
}

.feature-link:hover {
    color: var(--color-primary-dark);
    gap: 0.75rem;
}

/* 文章區塊 */
.articles-section {
    padding: var(--space-2xl) 0;
    background-color: var(--color-bg-light);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
}

.view-all-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.view-all-link:hover {
    color: var(--color-primary-dark);
    gap: 0.75rem;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.article-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: all 0.3s ease;
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
}

.article-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.article-category {
    background-color: var(--color-primary-light);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 500;
}

.article-date {
    color: var(--color-text-lighter);
    font-size: var(--text-sm);
}

.article-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.article-title a {
    color: inherit;
    text-decoration: none;
}

.article-title a:hover {
    color: var(--color-primary);
}

.article-excerpt {
    color: var(--color-text-light);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
    flex-grow: 1;
}

.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.article-stats {
    display: flex;
    gap: var(--space-md);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--color-text-lighter);
    font-size: var(--text-sm);
}

.stat-item i {
    font-size: var(--text-base);
}

.read-more {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--text-sm);
}

.read-more:hover {
    color: var(--color-primary-dark);
}

/* 中醫知識區塊 */
.knowledge-section {
    padding: var(--space-2xl) 0;
    background-color: var(--color-bg);
}

.knowledge-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.knowledge-text h3 {
    font-size: var(--text-2xl);
    color: var(--color-primary-dark);
    margin-bottom: var(--space-md);
}

.knowledge-text p {
    color: var(--color-text-light);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.knowledge-list {
    list-style: none;
}

.knowledge-list li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border-light);
    color: var(--color-text);
}

.knowledge-list li:last-child {
    border-bottom: none;
}

.knowledge-list strong {
    color: var(--color-primary);
}

.knowledge-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.yin-yang-symbol {
    font-size: 10rem;
    opacity: 0.8;
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* 行動呼籲區塊 */
.cta-section {
    padding: var(--space-2xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    text-align: center;
}

.cta-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.cta-text {
    font-size: var(--text-lg);
    margin-bottom: var(--space-xl);
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-section .btn-primary {
    background-color: white;
    color: var(--color-primary);
    border-color: white;
}

.cta-section .btn-primary:hover {
    background-color: var(--color-bg-lighter);
    border-color: var(--color-bg-lighter);
}

.cta-section .btn-outline {
    background-color: transparent;
    color: white;
    border-color: white;
}

.cta-section .btn-outline:hover {
    background-color: white;
    color: var(--color-primary);
}

/* 響應式設計 - 手機優先 */
@media (max-width: 768px) {
    :root {
        --space-xl: 2rem;
        --space-2xl: 3rem;
        --text-3xl: 1.5rem;
        --text-4xl: 2rem;
        --text-5xl: 2.5rem;
    }
    
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--text-lg);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .knowledge-content {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .knowledge-text {
        order: 2;
    }
    
    .knowledge-image {
        order: 1;
    }
    
    .yin-yang-symbol {
        font-size: 6rem;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-actions .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }
    
    .article-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }
    
    .article-stats {
        width: 100%;
        justify-content: space-between;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-sm);
    }
    
    .hero-title {
        font-size: var(--text-2xl);
    }
    
    .section-title {
        font-size: var(--text-2xl);
    }
    
    .feature-card,
    .article-card {
        padding: var(--space-lg);
    }
    
    .decoration-item {
        font-size: 2.5rem;
    }
}

/* 平板裝置 */
@media (min-width: 769px) and (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .knowledge-content {
        gap: var(--space-lg);
    }
}

/* 載入動畫 */
.fade-in {
    animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 工具類 */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--space-xs); }
.mt-2 { margin-top: var(--space-sm); }
.mt-3 { margin-top: var(--space-md); }
.mt-4 { margin-top: var(--space-lg); }
.mt-5 { margin-top: var(--space-xl); }

.mb-1 { margin-bottom: var(--space-xs); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-3 { margin-bottom: var(--space-md); }
.mb-4 { margin-bottom: var(--space-lg); }
.mb-5 { margin-bottom: var(--space-xl); }

.p-1 { padding: var(--space-xs); }
.p-2 { padding: var(--space-sm); }
.p-3 { padding: var(--space-md); }
.p-4 { padding: var(--space-lg); }
.p-5 { padding: var(--space-xl); }

.fade-in {
    animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}