/**
 * 北斗數位科技 - 專業企業級主題
 * Professional Enterprise Theme
 * 參考: Hostinger, LayerStack, imcloud.tw, Kamatera
 * Version: 3.0
 * 
 * 設計原則：
 * 1. 現代深色主題 + 金色強調色
 * 2. 玻璃態設計 (Glassmorphism)
 * 3. 流暢微動畫
 * 4. 企業級專業感
 * 5. 響應式優先
 */

/* ============================================
   字型系統 - 使用高品質字體組合
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ============================================
   CSS 變數定義 - 企業級配色
   ============================================ */
:root {
    /* 主色調 */
    --primary: #ffc107;
    --primary-light: #ffca28;
    --primary-dark: #f9a825;
    --primary-rgb: 255, 193, 7;
    
    /* 輔助色 */
    --accent-blue: #3b82f6;
    --accent-cyan: #22d3ee;
    --accent-green: #22c55e;
    --accent-red: #ef4444;
    --accent-purple: #a855f7;
    --accent-orange: #f97316;
    
    /* 背景色 - 深色主題 */
    --bg-primary: #0a0e17;
    --bg-secondary: #0f1629;
    --bg-tertiary: #151d31;
    --bg-card: #1a2340;
    --bg-card-hover: #1f2b4a;
    
    /* 文字色 */
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-accent: #ffc107;
    
    /* 邊框色 */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-light: rgba(255, 255, 255, 0.1);
    --border-medium: rgba(255, 255, 255, 0.15);
    --border-accent: rgba(255, 193, 7, 0.3);
    
    /* 玻璃態效果 */
    --glass-bg: rgba(15, 22, 41, 0.8);
    --glass-bg-light: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur: blur(20px);
    
    /* 陰影 */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px rgba(255, 193, 7, 0.15);
    --shadow-glow-strong: 0 0 60px rgba(255, 193, 7, 0.25);
    
    /* 漸層 */
    --gradient-primary: linear-gradient(135deg, #ffc107 0%, #ff9800 100%);
    --gradient-hero: linear-gradient(135deg, #0a0e17 0%, #0f1629 50%, #151d31 100%);
    --gradient-card: linear-gradient(135deg, rgba(26, 35, 64, 0.9) 0%, rgba(15, 22, 41, 0.9) 100%);
    --gradient-shine: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    
    /* 字型 */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans TC', 'Microsoft JhengHei', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
    
    /* 動畫 */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 150ms;
    --transition-normal: 300ms;
    --transition-slow: 500ms;
    
    /* 圓角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;
    
    /* 間距 */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
}

/* ============================================
   全域樣式重設
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

/* 選取效果 */
::selection {
    background: rgba(255, 193, 7, 0.3);
    color: var(--text-primary);
}

/* 滾動條美化 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 5px;
    border: 2px solid var(--bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--primary-light) 0%, var(--primary) 100%);
}

/* Firefox 滾動條 */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--primary) var(--bg-secondary);
}

/* ============================================
   字型系統
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.lead {
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ============================================
   導航列 - 企業級玻璃態設計
   ============================================ */
.navbar {
    background: rgba(10, 14, 23, 0.85) !important;
    backdrop-filter: var(--glass-blur) !important;
    -webkit-backdrop-filter: var(--glass-blur) !important;
    border-bottom: 1px solid var(--border-subtle) !important;
    padding: 0.75rem 0 !important;
    transition: all var(--transition-normal) var(--ease-smooth);
}

.navbar.scrolled {
    background: rgba(10, 14, 23, 0.95) !important;
    box-shadow: var(--shadow-md);
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--text-primary) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: transform var(--transition-fast) var(--ease-out-back);
}

.navbar-brand:hover {
    transform: scale(1.02);
}

.navbar-brand img {
    height: 42px;
    width: auto;
    filter: drop-shadow(0 2px 8px rgba(255, 193, 7, 0.2));
}

.navbar-nav .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast) var(--ease-smooth);
    position: relative;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: all var(--transition-normal) var(--ease-out-expo);
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover {
    color: var(--text-primary) !important;
    background: var(--glass-bg-light);
}

.navbar-nav .nav-link:hover::after {
    width: 60%;
}

.navbar-nav .nav-link.active {
    color: var(--primary) !important;
}

.navbar-nav .nav-link.active::after {
    width: 60%;
}

/* 導航下拉選單 */
.navbar .dropdown-menu {
    background: var(--glass-bg) !important;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-light) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-lg);
    padding: var(--space-sm) !important;
    margin-top: 0.5rem !important;
    animation: dropdownFadeIn var(--transition-normal) var(--ease-out-expo);
}

@keyframes dropdownFadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.navbar .dropdown-item {
    color: var(--text-secondary) !important;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.75rem 1rem !important;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast) var(--ease-smooth);
}

.navbar .dropdown-item:hover {
    background: rgba(255, 193, 7, 0.1) !important;
    color: var(--primary) !important;
    transform: translateX(4px);
}

.navbar .dropdown-item i {
    width: 20px;
    text-align: center;
}

/* Megamenu 樣式 */
.megamenu {
    background: var(--glass-bg) !important;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-light) !important;
    border-radius: var(--radius-xl) !important;
    box-shadow: var(--shadow-xl);
    padding: 0 !important;
    overflow: hidden;
}

.megamenu-col {
    padding: var(--space-lg) !important;
    border-right: 1px solid var(--border-subtle);
}

.megamenu-col:last-child {
    border-right: none;
}

.megamenu-col h6 {
    color: var(--primary) !important;
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--border-accent);
}

.megamenu-item {
    color: var(--text-secondary) !important;
    font-size: 0.9rem;
    padding: 0.6rem 0.75rem !important;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast) var(--ease-smooth);
    display: block;
    text-decoration: none !important;
}

.megamenu-item:hover {
    background: rgba(255, 193, 7, 0.1) !important;
    color: var(--primary) !important;
    transform: translateX(4px);
}

/* 導航按鈕 */
.navbar .btn-outline-warning {
    border: 2px solid var(--primary) !important;
    color: var(--primary) !important;
    background: transparent !important;
    font-weight: 600;
    transition: all var(--transition-fast) var(--ease-smooth);
}

.navbar .btn-outline-warning:hover {
    background: var(--primary) !important;
    color: var(--bg-primary) !important;
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.navbar .btn-warning {
    background: var(--gradient-primary) !important;
    border: none !important;
    color: var(--bg-primary) !important;
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(255, 193, 7, 0.3);
    transition: all var(--transition-fast) var(--ease-smooth);
}

.navbar .btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-strong);
}

/* ============================================
   Hero 區塊 - 震撼視覺
   ============================================ */
.hero-section {
    background: var(--gradient-hero) !important;
    min-height: 90vh;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 80% 20%, rgba(255, 193, 7, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 20% 80%, rgba(59, 130, 246, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.hero-section .display-1,
.hero-section .display-2 {
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

/* 漸層文字動畫 */
.gradient-text-animated {
    background: linear-gradient(90deg, #ffc107, #ff9800, #f97316, #ffc107);
    background-size: 300% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientFlow 4s ease infinite;
}

@keyframes gradientFlow {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* 統計卡片 */
.stat-card {
    background: var(--glass-bg-light);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: all var(--transition-normal) var(--ease-smooth);
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-medium);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

/* 3D 圖標容器 */
.icon-3d {
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    box-shadow: 
        0 8px 16px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transition: all var(--transition-fast) var(--ease-out-back);
}

.icon-3d:hover {
    transform: scale(1.1) rotate(-3deg);
}

/* ============================================
   按鈕系統 - 現代設計
   ============================================ */
.btn {
    font-family: var(--font-sans);
    font-weight: 600;
    border-radius: var(--radius-full);
    padding: 0.75rem 1.5rem;
    transition: all var(--transition-fast) var(--ease-smooth);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-shine);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-warning {
    background: var(--gradient-primary) !important;
    border: none !important;
    color: #000 !important;
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(255, 193, 7, 0.3);
}

.btn-warning:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-strong);
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.3) !important;
    color: var(--text-primary) !important;
    background: transparent !important;
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1) !important;
    border-color: rgba(255, 255, 255, 0.5) !important;
    transform: translateY(-2px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue) 0%, #1d4ed8 100%) !important;
    border: none !important;
    color: #fff !important;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, var(--accent-green) 0%, #16a34a 100%) !important;
    border: none !important;
    color: #fff !important;
    box-shadow: 0 4px 20px rgba(34, 197, 94, 0.3);
}

.btn-success:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(34, 197, 94, 0.4);
}

/* 發光按鈕效果 */
.btn-glow {
    animation: pulseGlow 2s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 4px 20px rgba(255, 193, 7, 0.3); }
    50% { box-shadow: 0 4px 30px rgba(255, 193, 7, 0.5); }
}

/* ============================================
   卡片系統 - 玻璃態設計
   ============================================ */
.card {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-subtle) !important;
    border-radius: var(--radius-xl) !important;
    overflow: hidden;
    transition: all var(--transition-normal) var(--ease-smooth);
}

.card:hover {
    background: var(--bg-card-hover) !important;
    border-color: var(--border-light) !important;
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.card-body {
    padding: var(--space-xl);
}

.card-title {
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.card-text {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 服務卡片 */
.service-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-tertiary) 100%) !important;
    border: 1px solid var(--border-subtle) !important;
    border-radius: var(--radius-xl) !important;
    overflow: hidden;
    position: relative;
    transition: all var(--transition-normal) var(--ease-smooth);
}

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

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg), 0 0 40px rgba(255, 193, 7, 0.1);
    border-color: var(--border-accent) !important;
}

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

.service-card .card-header {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.1) 0%, rgba(255, 152, 0, 0.05) 100%) !important;
    border-bottom: 1px solid var(--border-subtle) !important;
    padding: var(--space-xl);
}

.service-card .card-header i {
    color: var(--primary) !important;
    font-size: 2.5rem;
    filter: drop-shadow(0 4px 8px rgba(255, 193, 7, 0.3));
}

/* 特色卡片 - 帶圖標 */
.feature-card {
    background: var(--glass-bg-light);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    transition: all var(--transition-normal) var(--ease-smooth);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--border-light);
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.feature-card .icon-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    transition: all var(--transition-normal) var(--ease-out-back);
}

.feature-card:hover .icon-wrapper {
    transform: scale(1.1) rotate(-5deg);
}

/* ============================================
   區塊樣式
   ============================================ */
section {
    padding: var(--space-3xl) 0;
    position: relative;
}

.section-dark {
    background: var(--bg-secondary);
}

.section-gradient {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

/* 區塊標題 */
.section-title {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-title h2 {
    font-weight: 800;
    margin-bottom: var(--space-md);
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-title p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: var(--space-lg) auto 0;
}

/* 區塊徽章 */
.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.2);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
}

/* ============================================
   頁尾 - 企業級設計
   ============================================ */
footer {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%) !important;
    border-top: 1px solid var(--border-subtle);
    padding-top: var(--space-3xl);
}

footer h5, footer h6 {
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    position: relative;
}

footer h5::after, footer h6::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
}

footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

footer ul li {
    margin-bottom: 0.5rem;
}

footer a {
    color: var(--text-secondary) !important;
    text-decoration: none !important;
    transition: all var(--transition-fast) var(--ease-smooth);
    display: inline-block;
}

footer a:hover {
    color: var(--primary) !important;
    transform: translateX(4px);
}

footer .social-icons {
    display: flex;
    gap: var(--space-md);
}

footer .social-icons a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg-light);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-secondary) !important;
    font-size: 1.2rem;
    transition: all var(--transition-fast) var(--ease-out-back);
}

footer .social-icons a:hover {
    background: rgba(255, 193, 7, 0.1);
    border-color: var(--border-accent);
    color: var(--primary) !important;
    transform: translateY(-4px);
}

footer hr {
    border-color: var(--border-subtle);
    margin: var(--space-2xl) 0;
}

footer .copyright {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ============================================
   動畫效果
   ============================================ */
/* 滾動觸發動畫 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow) var(--ease-out-expo),
                transform var(--transition-slow) var(--ease-out-expo);
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* 延遲動畫 */
.animate-delay-100 { transition-delay: 0.1s; }
.animate-delay-200 { transition-delay: 0.2s; }
.animate-delay-300 { transition-delay: 0.3s; }
.animate-delay-400 { transition-delay: 0.4s; }
.animate-delay-500 { transition-delay: 0.5s; }

/* 浮動動畫 */
.floating {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

/* 脈衝動畫 */
.pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

/* ============================================
   表單元素
   ============================================ */
.form-control, .form-select {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-light) !important;
    color: var(--text-primary) !important;
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    transition: all var(--transition-fast) var(--ease-smooth);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 3px rgba(255, 193, 7, 0.15) !important;
    outline: none;
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-label {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* ============================================
   徽章和標籤
   ============================================ */
.badge {
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
}

.badge-primary {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-blue);
}

.badge-success {
    background: rgba(34, 197, 94, 0.2);
    color: var(--accent-green);
}

.badge-warning {
    background: rgba(255, 193, 7, 0.2);
    color: var(--primary);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-red);
}

/* ============================================
   工具類別
   ============================================ */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-glow {
    text-shadow: 0 0 20px currentColor;
}

.bg-glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

.border-gradient {
    border: 2px solid transparent;
    background-image: linear-gradient(var(--bg-card), var(--bg-card)),
                      var(--gradient-primary);
    background-origin: border-box;
    background-clip: padding-box, border-box;
}

/* ============================================
   響應式設計
   ============================================ */
@media (max-width: 991.98px) {
    .navbar-collapse {
        background: var(--glass-bg);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        border-radius: var(--radius-lg);
        margin-top: var(--space-md);
        padding: var(--space-md);
        border: 1px solid var(--border-subtle);
    }
    
    .megamenu {
        position: static !important;
        width: 100% !important;
        border-radius: var(--radius-md) !important;
    }
    
    .megamenu .d-flex {
        flex-direction: column !important;
    }
    
    .megamenu-col {
        border-right: none !important;
        border-bottom: 1px solid var(--border-subtle);
        padding: var(--space-md) !important;
    }
    
    .megamenu-col:last-child {
        border-bottom: none;
    }
}

@media (max-width: 768px) {
    .hero-section {
        min-height: 80vh;
        padding: var(--space-2xl) 0;
    }
    
    .stat-card {
        padding: var(--space-md);
    }
    
    section {
        padding: var(--space-2xl) 0;
    }
    
    .service-card .card-header {
        padding: var(--space-lg);
    }
    
    .card-body {
        padding: var(--space-lg);
    }
}

@media (max-width: 576px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .section-title h2::after {
        width: 40px;
    }
}

/* ============================================
   減少動畫偏好
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .floating {
        animation: none;
    }
    
    .gradient-text-animated {
        animation: none;
    }
}

/* ============================================
   列印樣式
   ============================================ */
@media print {
    body {
        background: #fff;
        color: #000;
    }
    
    .navbar, footer, .btn {
        display: none !important;
    }
    
    .card {
        border: 1px solid #ccc !important;
        box-shadow: none !important;
    }
}