/* 基本樣式 */
:root {
    --primary-color: #1e3a8a;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --dark-color: #0f172a;
    --light-color: #f8fafc;
    --gradient-primary: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-large: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

body {
    font-family: 'Microsoft JhengHei', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.7;
    color: #334155;
    background-color: #ffffff;
}

/* 導航列增強 */
.navbar {
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95) !important;
    box-shadow: var(--shadow-soft);
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-nav .nav-link {
    font-weight: 600;
    margin: 0 0.75rem;
    padding: 0.75rem 1rem !important;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    color: #334155 !important; /* 明確設定深灰色字體 */
}

.navbar-nav .nav-link:hover {
    background: var(--gradient-accent);
    color: white !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

/* 確保導航欄在不同狀態下的字體顏色 */
.navbar-light .navbar-nav .nav-link {
    color: #334155 !important;
}

.navbar-light .navbar-nav .nav-link:hover,
.navbar-light .navbar-nav .nav-link:focus {
    color: white !important;
}

/* 首頁橫幅重新設計 */
.hero-section {
    background: linear-gradient(135deg, 
        rgba(30, 58, 138, 0.95) 0%, 
        rgba(59, 130, 246, 0.9) 50%,
        rgba(147, 197, 253, 0.85) 100%),
        url('../image/001 (25).jpg') center/cover;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><pattern id="grid" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M 50 0 L 0 0 0 50" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-overlay {
    position: relative;
    z-index: 2;
    padding: 2rem 0;
}

.hero-content {
    position: relative;
    z-index: 3;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 2rem;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.btn-hero-primary {
    background: var(--gradient-accent);
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 12px;
    box-shadow: var(--shadow-medium);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-hero-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-large);
}

.btn-hero-secondary {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.btn-hero-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
    color: white;
}

.hero-image {
    position: relative;
}

.hero-image img {
    border-radius: 20px;
    box-shadow: var(--shadow-large);
    transition: transform 0.3s ease;
}

.hero-image:hover img {
    transform: scale(1.02);
}

/* 浮動元素動畫 */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.floating-icon {
    position: absolute;
    color: rgba(255, 255, 255, 0.1);
    font-size: 2rem;
    animation: float 6s ease-in-out infinite;
}

.floating-icon:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-icon:nth-child(2) {
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.floating-icon:nth-child(3) {
    bottom: 30%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

/* 統計數據區塊 */
.stats-section {
    background: var(--gradient-primary);
    color: white;
    padding: 4rem 0;
    margin-top: -2rem;
    position: relative;
    z-index: 3;
}

.stat-item {
    text-align: center;
    padding: 2rem 1rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    display: block;
    margin-bottom: 0.5rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1.1rem;
    font-weight: 500;
    opacity: 0.9;
}

/* 區段標題增強 */
.section-title {
    font-size: 2.75rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    position: relative;
    text-align: center;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--gradient-accent);
    margin: 1.5rem auto;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: 3rem;
    font-weight: 400;
}

/* 服務卡片重新設計 */
.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
    transition: all 0.4s ease;
    text-align: center;
    border: 1px solid rgba(226, 232, 240, 0.8);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-large);
    border-color: rgba(59, 130, 246, 0.2);
}

.service-icon {
    width: 90px;
    height: 90px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    position: relative;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
    background: var(--gradient-accent);
}

.service-icon i {
    font-size: 2.2rem;
    color: white;
}

.service-card h4 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 700;
    font-size: 1.4rem;
}

.service-card p {
    color: var(--secondary-color);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

/* 響應式設計 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .btn-hero-primary,
    .btn-hero-secondary {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
}