/* ============================================
   殴易官网 - 主样式表
   专业深色加密货币交易平台配色
   ============================================ */

/* CSS 变量 - 深色主题 */
:root {
    --primary-color: #00d4aa;
    --primary-dark: #00a887;
    --primary-light: #4de8c4;
    --secondary-color: #6366f1;
    --bg-dark: #0a0e17;
    --bg-card: #121826;
    --bg-card-hover: #1a2236;
    --bg-secondary: #0f1420;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: #1e293b;
    --border-hover: #334155;
    --success-color: #22c55e;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --gradient-primary: linear-gradient(135deg, #00d4aa 0%, #00a887 100%);
    --gradient-secondary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-bg: linear-gradient(180deg, #0a0e17 0%, #0f1420 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(0, 212, 170, 0.3);
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --container-max: 1200px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
}

/* 基础重置 */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

a:hover {
    color: var(--primary-light);
}

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

ul, ol {
    list-style: none;
}

/* 容器 */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   导航栏
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.nav-brand .brand-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: #fff;
    font-weight: 800;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    position: relative;
    padding: 10px 16px;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(0, 212, 170, 0.1);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 2px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.btn-mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

/* ============================================
   按钮样式
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 20px rgba(0, 212, 170, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(0, 212, 170, 0.45);
    color: #fff;
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: #fff;
    transform: translateY(-2px);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-hover);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.85rem;
}

/* ============================================
   Hero 区域
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
    background: radial-gradient(ellipse at top, rgba(0, 212, 170, 0.15) 0%, transparent 60%),
                radial-gradient(ellipse at bottom right, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
                var(--bg-dark);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 170, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 170, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    animation: fadeInUp 1s ease forwards;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: var(--radius-full);
    color: var(--primary-light);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero h1 {
    font-size: clamp(2.25rem, 5vw, 3.75rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #ffffff 0%, #00d4aa 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
}

.stat-item .stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
    margin-bottom: 4px;
}

.stat-item .stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.hero-visual {
    position: relative;
    animation: fadeInRight 1s ease 0.2s forwards;
    opacity: 0;
}

.hero-visual-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-lg);
}

.trade-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.trade-pair {
    display: flex;
    align-items: center;
    gap: 12px;
}

.coin-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.coin-icon.btc { background: linear-gradient(135deg, #f7931a, #f59e0b); color: #fff; }
.coin-icon.eth { background: linear-gradient(135deg, #627eea, #8b9cf7); color: #fff; }
.coin-icon.okb { background: linear-gradient(135deg, #00d4aa, #00a887); color: #fff; }

.trade-info h3 {
    font-size: 1.1rem;
    margin-bottom: 2px;
}

.trade-info span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.trade-price {
    text-align: right;
}

.trade-price .price {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--success-color);
    display: block;
}

.trade-price .change {
    font-size: 0.8rem;
    color: var(--success-color);
}

/* 价格表 */
.price-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.price-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.price-row:hover {
    border-color: var(--primary-color);
    transform: translateX(4px);
}

.price-row .name {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
}

.price-row .p {
    font-weight: 600;
    font-family: 'SF Mono', monospace;
}

.price-row .up { color: var(--success-color); }
.price-row .down { color: var(--danger-color); }

/* 浮动装饰 */
.floating-badge {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    box-shadow: var(--shadow-md);
    animation: float 6s ease-in-out infinite;
}

.floating-badge.top {
    top: -20px;
    right: -30px;
}

.floating-badge.bottom {
    bottom: -20px;
    left: -30px;
    animation-delay: 3s;
}

.floating-badge .label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.floating-badge .value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* ============================================
   通用 Section 样式
   ============================================ */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 212, 170, 0.1);
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.section-title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ============================================
   核心特性
   ============================================ */
.features {
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

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

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

.feature-icon {
    width: 56px;
    height: 56px;
    background: rgba(0, 212, 170, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ============================================
   服务介绍
   ============================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.service-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 100px;
}

.service-block:last-child {
    margin-bottom: 0;
}

.service-block.reverse {
    direction: rtl;
}

.service-block.reverse > * {
    direction: ltr;
}

.service-content .service-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.service-content h3 {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.3;
}

.service-content p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.8;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 28px;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
}

.service-list li::before {
    content: '✓';
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    background: rgba(0, 212, 170, 0.15);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
}

.service-image {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid var(--border-color);
}

.service-image img {
    border-radius: var(--radius-md);
    width: 100%;
}

/* ============================================
   质押理财
   ============================================ */
.staking-section {
    background: linear-gradient(135deg, #0a0e17 0%, #121826 100%);
}

.staking-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.staking-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: all var(--transition-normal);
}

.staking-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-color);
}

.staking-card.featured {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
    position: relative;
}

.staking-card.featured::before {
    content: '推荐';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: var(--radius-full);
}

.staking-apy {
    margin-bottom: 16px;
}

.staking-apy .apy-value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
    line-height: 1;
}

.staking-apy .apy-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.staking-card h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.staking-card .duration {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 20px;
}

/* ============================================
   下载区域
   ============================================ */
.download-section {
    background: radial-gradient(ellipse at center, rgba(0, 212, 170, 0.1) 0%, transparent 60%),
                var(--bg-secondary);
}

.download-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.download-info h2 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 800;
    margin-bottom: 16px;
}

.download-info p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.download-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    color: var(--text-primary);
}

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

.download-btn .icon {
    font-size: 1.75rem;
}

.download-btn .text {
    text-align: left;
}

.download-btn .small {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.download-btn .big {
    font-size: 1rem;
    font-weight: 700;
}

.download-preview {
    text-align: center;
}

.download-preview img {
    max-width: 320px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.version-info {
    margin-top: 20px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ============================================
   CTA 行动号召
   ============================================ */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #00d4aa 0%, #00a887 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.cta-content {
    position: relative;
    z-index: 2;
}

.cta-content h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.85);
    margin-bottom: 36px;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
}

.cta-content .btn-primary {
    background: #fff;
    color: var(--primary-dark);
}

.cta-content .btn-primary:hover {
    background: rgba(255,255,255,0.9);
    color: var(--primary-dark);
}

.cta-content .btn-secondary {
    color: #fff;
    border-color: rgba(255,255,255,0.6);
}

.cta-content .btn-secondary:hover {
    background: #fff;
    color: var(--primary-dark);
    border-color: #fff;
}

/* ============================================
   FAQ 常见问题
   ============================================ */
.faq-section {
    background: var(--bg-secondary);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item.active {
    border-color: var(--primary-color);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 24px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    background: none;
    cursor: pointer;
}

.faq-question .arrow {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-normal);
    color: var(--primary-color);
}

.faq-item.active .faq-question .arrow {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal), padding var(--transition-normal);
    padding: 0 24px;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 24px 24px;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ============================================
   页脚
   ============================================ */
.site-footer {
    background: var(--bg-dark);
    border-top: 1px solid var(--border-color);
    padding: 80px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 60px;
}

.footer-brand {
    max-width: 320px;
}

.footer-brand .nav-brand {
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
    transform: translateY(-2px);
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col a {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-bottom p {
    margin-bottom: 8px;
}

/* ============================================
   内页 Banner
   ============================================ */
.page-banner {
    padding: 160px 0 80px;
    background: radial-gradient(ellipse at top, rgba(0, 212, 170, 0.12) 0%, transparent 60%),
                var(--bg-dark);
    text-align: center;
}

.page-banner h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #ffffff 0%, #00d4aa 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.page-banner p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}

.breadcrumb {
    margin-top: 24px;
    display: flex;
    justify-content: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

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

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

.breadcrumb .separator {
    color: var(--border-hover);
}

/* ============================================
   新闻列表页
   ============================================ */
.news-list-section {
    padding: 80px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.news-image {
    aspect-ratio: 16/9;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.news-card:hover .news-image img {
    transform: scale(1.05);
}

.news-body {
    padding: 28px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.news-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.news-meta .date,
.news-meta .category {
    display: flex;
    align-items: center;
    gap: 4px;
}

.news-category {
    padding: 2px 10px;
    background: rgba(0, 212, 170, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-weight: 500;
}

.news-body h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.5;
    transition: color var(--transition-fast);
}

.news-card:hover h3 {
    color: var(--primary-color);
}

.news-body p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 16px;
    flex-grow: 1;
}

.read-more {
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap var(--transition-fast);
}

.read-more:hover {
    gap: 10px;
    color: var(--primary-light);
}

/* ============================================
   新闻详情页
   ============================================ */
.news-detail-section {
    padding: 80px 0;
}

.news-detail {
    max-width: 800px;
    margin: 0 auto;
}

.news-detail .news-header {
    margin-bottom: 32px;
}

.news-detail .news-header h1 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 800;
    line-height: 1.4;
    margin-bottom: 20px;
}

.news-detail .news-meta {
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.news-detail .news-cover {
    margin-bottom: 40px;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.news-detail .news-cover img {
    width: 100%;
}

.news-content {
    font-size: 1.05rem;
    line-height: 2;
    color: var(--text-secondary);
}

.news-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 40px 0 20px;
}

.news-content h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 32px 0 16px;
}

.news-content p {
    margin-bottom: 20px;
}

.news-content ul {
    margin: 20px 0;
    padding-left: 24px;
}

.news-content ul li {
    list-style: disc;
    margin-bottom: 12px;
}

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

/* ============================================
   关于页
   ============================================ */
.about-section {
    padding: 80px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.about-image img {
    width: 100%;
}

.about-content h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    margin-bottom: 20px;
}

.about-content p {
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 16px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.value-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px;
    transition: all var(--transition-normal);
}

.value-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.value-card .icon {
    width: 48px;
    height: 48px;
    background: rgba(0, 212, 170, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.value-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.value-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* 数据统计 */
.stats-section {
    background: var(--bg-secondary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.stats-card {
    text-align: center;
    padding: 40px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.stats-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.stats-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 8px;
}

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

/* ============================================
   联系页
   ============================================ */
.contact-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    gap: 20px;
    transition: all var(--transition-normal);
}

.contact-card:hover {
    border-color: var(--primary-color);
}

.contact-card .icon {
    width: 48px;
    height: 48px;
    background: rgba(0, 212, 170, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-card h3 {
    font-size: 1.05rem;
    margin-bottom: 6px;
}

.contact-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.contact-form-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--bg-dark);
}

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* ============================================
   动画
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

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

/* 滚动动画 */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1024px) {
    .hero-content,
    .services-grid,
    .download-grid,
    .contact-grid,
    .about-grid {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        order: -1;
        max-width: 480px;
        margin: 0 auto;
    }

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

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .service-block {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .service-block.reverse {
        direction: ltr;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg-card);
        padding: 24px;
        gap: 8px;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-links.open {
        display: flex;
    }

    .btn-mobile-toggle {
        display: flex;
    }

    .nav-actions .btn-ghost {
        display: none;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

    .features-grid,
    .staking-cards,
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 60px 0;
    }

    .floating-badge.top {
        right: 0;
    }

    .floating-badge.bottom {
        left: 0;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .values-grid {
        grid-template-columns: 1fr;
    }

    .download-buttons {
        flex-direction: column;
    }

    .download-btn {
        width: 100%;
    }
}