/* ========================================
           CSS變量系統 - 主題管理
           ======================================== */
:root {
    /* 亮色主題 */
    --bg-primary: #F8FAFC;
    --bg-secondary: #F1F5F9;
    --bg-card: #FFFFFF;
    --bg-card-hover: #F8FAFC;
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #64748B;
    --border-color: #E2E8F0;
    --border-hover: #CBD5E1;

    /* 品牌色 */
    --brand-primary: #F59E0B;
    --brand-secondary: #FBBF24;
    --brand-accent: #8B5CF6;
    --brand-success: #10B981;
    --brand-warning: #F59E0B;
    --brand-danger: #EF4444;
    --brand-info: #3B82F6;

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(226, 232, 240, 0.5);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);

    /* 動畫 */
    --transition-fast: 150ms;
    --transition-normal: 200ms;
    --transition-slow: 300ms;

    /* 間距 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* 字體 */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'DM Sans', sans-serif;

    /* 過渡 */
    --transition-fast: 150ms ease-out;
    --transition-normal: 200ms ease-out;
    --transition-slow: 300ms ease-out;

    /* 圓角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;

    /* 文字顏色 */
    --color-text-primary: #F8FAFC;
    --color-text-secondary: #475569;
    --color-text-muted: #94A3B8;
    --color-text-dark: #475569;
    --text-disabled: #CBD5E1;
    --text-inverse: #FFFFFF;

    /* 邊框顏色 */
    --color-border-primary: #E2E8F0;
    --color-border-secondary: #475569;
    --color-border-accent: #F59E0B;
    --border-primary: #E2E8F0;

    /* 陰影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(245, 158, 11, 0.3);

    /* 深色主題 (默認) */
    --color-primary: #F59E0B;
    --color-primary-hover: #FBBF24;
    --color-secondary: #8B5CF6;
    --color-secondary-hover: #A78BFA;
    --color-cta: #8B5CF6;
    --color-cta-hover: #A78BFA;
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    --color-info: #3B82F6;

    /* 背景色 */
    --color-bg-primary: #0F172A;
    --color-bg-secondary: #1E293B;
    --color-bg-tertiary: #334155;
    --color-bg-card: rgba(30, 41, 59, 0.8);
    --color-bg-glass: rgba(248, 250, 252, 0.8);


    --text-sm: 0.875rem;
}

/* 深色主題（默認） */
[data-theme="dark"] {
    --bg-primary: #0F172A;
    --bg-secondary: #1E293B;
    --bg-card: #1E293B;
    --bg-card-hover: #334155;
    --text-primary: #F8FAFC;
    --text-secondary: #CBD5E1;
    --text-muted: #94A3B8;
    --border-color: #334155;
    --border-hover: #475569;
    --border-primary: #1E3A5F;
    /* Glassmorphism 深色 */
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(51, 65, 85, 0.5);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --color-text-secondary: #CBD5E1;
    --color-bg-glass: rgba(15, 23, 42, 0.6);
    --color-border-primary: #334155;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Exo 2', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color var(--transition-normal), color var(--transition-normal);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.75rem);
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* ========================================
           通用組件樣式
           ======================================== */

/* 容器 */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 768px) {
    .container {
        padding: 0 2rem;
    }
}

/* Grid佈局 */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-2 {
    grid-template-columns: repeat(1, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(1, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(1, 1fr);
}

@media (min-width: 640px) {
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Flex佈局 */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

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

.flex-between {
    justify-content: space-between;
}

.flex-wrap {
    flex-wrap: wrap;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-4 {
    gap: 1rem;
}

.gap-6 {
    gap: 1.5rem;
}

.gap-8 {
    gap: 2rem;
}

/* 按鈕組件 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 0.5rem;
    transition: all var(--transition-normal);
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    color: #0F172A;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(245, 158, 11, 0.3);
}

.btn-secondary {
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
}

.btn-accent {
    background: var(--brand-accent);
    color: #FFFFFF;
}

.btn-accent:hover {
    background: #7C3AED;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(139, 92, 246, 0.3);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* 卡片組件 - Glassmorphism風格 */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 1.5rem;
    transition: all var(--transition-normal);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--glass-shadow);
    border-color: var(--border-hover);
}

.card-interactive {
    cursor: pointer;
}

/* Badge組件 */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-primary {
    background: rgba(245, 158, 11, 0.2);
    color: var(--brand-primary);
}

.badge-success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--brand-success);
}

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

.badge-accent {
    background: rgba(139, 92, 246, 0.2);
    color: var(--brand-accent);
}

/* 徽標 */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    background: var(--bg-secondary);
    border-radius: 0.375rem;
    color: var(--text-secondary);
}

/* 圖標 */
.icon {
    width: 1.5rem;
    height: 1.5rem;
    flex-shrink: 0;
}

.icon-sm {
    width: 1rem;
    height: 1rem;
}

.icon-lg {
    width: 2rem;
    height: 2rem;
}

/* ========================================
           Hero區域樣式
           ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl) var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

/* 背景動畫效果 */
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 30%, rgba(168, 85, 247, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(245, 158, 11, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(249, 115, 22, 0.08) 0%, transparent 50%);
    animation: heroGradient 20s ease infinite;
}

@keyframes heroGradient {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    33% {
        transform: translate(5%, 5%) rotate(120deg);
    }

    66% {
        transform: translate(-5%, -5%) rotate(240deg);
    }
}

@keyframes hero-bg-pulse {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    50% {
        transform: translate(-5%, -5%) scale(1.05);
    }
}

.hero-content {
    max-width: 800px;
    text-align: center;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 2rem;
    margin-bottom: 1.5rem;
    animation: fade-in-up 0.6s ease-out;
}

.hero-title {
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fade-in-up 0.6s ease-out 0.1s backwards;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 2rem;
    animation: fade-in-up 0.6s ease-out 0.2s backwards;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
    animation: fade-in-up 0.6s ease-out 0.3s backwards;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    animation: fade-in-up 0.6s ease-out 0.4s backwards;
}

@media (min-width: 640px) {
    .hero-stats {
        grid-template-columns: repeat(4, 1fr);
    }
}

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

.stat-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--brand-primary);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
           Section通用樣式
           ======================================== */
.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border-radius: 2rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.section-title {
    margin-bottom: 1rem;
}

.section-description {
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
           功能卡片樣式
           ======================================== */
.feature-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(139, 92, 246, 0.2));
    border-radius: 0.75rem;
    margin-bottom: 1rem;
    color: var(--brand-primary);
}

.feature-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* ========================================
           AI掃描引擎樣式
           ======================================== */
.scanner-dashboard {
    display: grid;
    gap: 1.5rem;
}

@media (min-width: 1024px) {
    .scanner-dashboard {
        grid-template-columns: 1fr 1fr;
    }
}

.scanner-main {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 1.5rem;
}

.scanner-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.scanner-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-dot {
    width: 0.5rem;
    height: 0.5rem;
    background: var(--brand-success);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.scanner-metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.metric-card {
    background: var(--bg-secondary);
    border-radius: 0.75rem;
    padding: 1rem;
    text-align: center;
}

.metric-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--brand-primary);
}

.metric-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.signal-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-height: 300px;
    overflow-y: auto;
    scrollbar-width: none;
    /* Firefox隱藏滾動條 */
    -ms-overflow-style: none;
    /* IE和Edge隱藏滾動條 */
}

.signal-list::-webkit-scrollbar {
    display: none;
    /* Chrome, Safari 和 Opera 隱藏滾動條 */
}

.signal-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.signal-item:hover {
    background: var(--bg-card-hover);
    transform: translateX(4px);
}

.signal-icon {
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(245, 158, 11, 0.2);
    border-radius: 0.375rem;
    color: var(--brand-primary);
}

.signal-info {
    flex: 1;
}

.signal-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.125rem;
}

.signal-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.signal-score {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    padding: 0.25rem 0.5rem;
    background: rgba(16, 185, 129, 0.2);
    border-radius: 0.25rem;
    color: var(--brand-success);
}

/* ========================================
           策略市場樣式
           ======================================== */
.strategy-filter {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
}

.filter-btn {
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.filter-btn:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--brand-primary);
    border-color: var(--brand-primary);
    color: #0F172A;
}

.strategy-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 1.5rem;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.strategy-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--glass-shadow);
}

.strategy-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.strategy-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    border-radius: 0.75rem;
}

.strategy-apr {
    text-align: right;
}

.apr-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--brand-success);
}

.apr-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.strategy-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.strategy-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.strategy-stats {
    display: flex;
    justify-content: space-between;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.strategy-stat {
    text-align: center;
}

.strategy-stat-value {
    font-weight: 600;
    color: var(--text-primary);
}

.strategy-stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ========================================
           積分體系樣式
           ======================================== */
.points-grid {
    display: grid;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .points-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.points-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.points-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.points-card.cp::before {
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary));
}

.points-card.ep::before {
    background: linear-gradient(90deg, var(--brand-success), var(--brand-info));
}

.points-card.nft::before {
    background: linear-gradient(90deg, var(--brand-accent), #EC4899);
}

.points-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: 50%;
    margin: 0 auto 1rem;
}

.points-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.points-card.cp .points-value {
    color: var(--brand-primary);
}

.points-card.ep .points-value {
    color: var(--brand-success);
}

.points-card.nft .points-value {
    color: var(--brand-accent);
}

.points-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.points-action {
    width: 100%;
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.points-action:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
}

/* ========================================
           路線圖樣式
           ======================================== */
.roadmap {
    position: relative;
    padding: 2rem 0;
}

.roadmap::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--brand-primary), var(--brand-accent));
}

@media (max-width: 768px) {
    .roadmap::before {
        left: 1rem;
    }
}

.roadmap-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
    align-items: center;
}

@media (max-width: 768px) {
    .roadmap-item {
        grid-template-columns: 1fr;
        padding-left: 3rem;
    }
}

.roadmap-item:nth-child(even) {
    direction: rtl;
}

@media (max-width: 768px) {
    .roadmap-item:nth-child(even) {
        direction: ltr;
    }
}

.roadmap-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 1rem;
    height: 1rem;
    background: var(--brand-primary);
    border: 3px solid var(--bg-card);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.3);
}

@media (max-width: 768px) {
    .roadmap-marker {
        left: 1rem;
    }
}

.roadmap-content {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 1.5rem;
}

.roadmap-phase {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    background: rgba(245, 158, 11, 0.2);
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--brand-primary);
    margin-bottom: 0.5rem;
}

.roadmap-phase.completed {
    background: rgba(16, 185, 129, 0.2);
    color: var(--brand-success);
}

.roadmap-item:nth-child(odd) .roadmap-content {
    text-align: right;
}

@media (max-width: 768px) {
    .roadmap-item:nth-child(odd) .roadmap-content {
        text-align: left;
    }
}

/* ========================================
           社區鏈接樣式
           ======================================== */
.community-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.community-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.community-link:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

/* ========================================
           Footer樣式
           ======================================== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
    padding: var(--space-3xl) 0 var(--space-xl);
    margin-top: var(--space-3xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-title {
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: var(--space-lg);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-primary);
    color: var(--text-muted);
}

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

.text-primary {
    color: var(--text-primary);
}

.text-secondary {
    color: var(--text-secondary);
}

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

.text-brand {
    color: var(--brand-primary);
}

.text-success {
    color: var(--brand-success);
}

.text-accent {
    color: var(--brand-accent);
}

.mb-1 {
    margin-bottom: 0.25rem;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-3 {
    margin-bottom: 0.75rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.mb-6 {
    margin-bottom: 1.5rem;
}

.mb-8 {
    margin-bottom: 2rem;
}

.mt-4 {
    margin-top: 1rem;
}

.mt-6 {
    margin-top: 1.5rem;
}

.mt-8 {
    margin-top: 2rem;
}

/* ========================================
           可訪問性改進
           ======================================== */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Skip Link for keyboard navigation */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--brand-primary);
    color: #0F172A;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Focus visible */
:focus-visible {
    outline: 2px solid var(--brand-primary);
    outline-offset: 2px;
}

/* ========================================
           移動菜單樣式
           ======================================== */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    background: var(--bg-primary);
    padding: 5rem 1.5rem 2rem;
    overflow-y: auto;
}

.mobile-menu.active {
    display: block;
    animation: slide-in 0.3s ease-out;
}

@keyframes slide-in {
    from {
        transform: translateX(100%);
    }

    to {
        transform: translateX(0);
    }
}

.mobile-menu-link {
    display: block;
    padding: 1rem;
    font-size: 1.125rem;
    font-weight: 500;
    border-bottom: 1px solid var(--border-color);
}

.mobile-menu-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: 0.5rem;
}

/* ========================================
           骨架屏加載動畫
           ======================================== */
.skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-card-hover) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

.skeleton-text {
    height: 1rem;
    border-radius: 0.25rem;
    margin-bottom: 0.5rem;
}

.skeleton-title {
    height: 1.5rem;
    width: 60%;
    border-radius: 0.25rem;
    margin-bottom: 1rem;
}

.community-section {
    padding: var(--spacing-3xl) 0;
}

.community-grid {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .community-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .community-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.community-card {
    padding: var(--spacing-xl);
    text-align: center;
    text-decoration: none;
    color: inherit;
    display: block;
}

.community-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.community-card h3 {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.community-card p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.glass-card {
    background: var(--color-bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
}

.glass-card:hover {
    border-color: var(--color-border-accent);
    box-shadow: var(--shadow-glow);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}