/* im冷钱包 - 全站样式表 */
/* 深空蓝到极光紫渐变色系 + 磨砂玻璃效果 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

:root {
    --deep-space: #0a0e27;
    --aurora-purple: #7c3aed;
    --aurora-blue: #3b82f6;
    --aurora-cyan: #06b6d4;
    --aurora-pink: #ec4899;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: rgba(0, 0, 0, 0.3);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-accent: #a78bfa;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-hero: linear-gradient(135deg, #0a0e27 0%, #1a1145 30%, #2d1b69 60%, #1e3a5f 100%);
    --gradient-card: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(59, 130, 246, 0.1));
    --gradient-btn: linear-gradient(135deg, #7c3aed, #3b82f6);
    --radius: 16px;
    --radius-sm: 8px;
    --radius-lg: 24px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--deep-space);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    min-height: 100vh;
}

/* 背景网格线 + 粒子效果 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(124, 58, 237, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(124, 58, 237, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: -2;
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(2px 2px at 20% 30%, rgba(124, 58, 237, 0.3), transparent),
        radial-gradient(2px 2px at 40% 70%, rgba(59, 130, 246, 0.2), transparent),
        radial-gradient(2px 2px at 60% 20%, rgba(6, 182, 212, 0.2), transparent),
        radial-gradient(2px 2px at 80% 50%, rgba(236, 72, 153, 0.15), transparent),
        radial-gradient(1px 1px at 10% 80%, rgba(167, 139, 250, 0.3), transparent),
        radial-gradient(1px 1px at 70% 90%, rgba(59, 130, 246, 0.2), transparent),
        radial-gradient(1px 1px at 90% 10%, rgba(124, 58, 237, 0.25), transparent);
    animation: particleFloat 20s ease-in-out infinite alternate;
    z-index: -1;
    pointer-events: none;
}

@keyframes particleFloat {
    0% { transform: translateY(0) translateX(0); }
    25% { transform: translateY(-15px) translateX(10px); }
    50% { transform: translateY(-5px) translateX(-8px); }
    75% { transform: translateY(-20px) translateX(5px); }
    100% { transform: translateY(-10px) translateX(-5px); }
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 磨砂玻璃卡片 */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
    transition: all 0.3s ease;
}

.glass-card:hover {
    border-color: rgba(124, 58, 237, 0.3);
    box-shadow: 0 8px 32px rgba(124, 58, 237, 0.15);
    transform: translateY(-2px);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0 20px;
    height: 70px;
    display: flex;
    align-items: center;
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 800;
    font-size: 1.3rem;
}

.nav-brand .brand-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-btn);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: white;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-accent);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-btn);
    transition: width 0.3s;
    border-radius: 1px;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-download-btn {
    background: var(--gradient-btn);
    color: white !important;
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.85rem;
}

.nav-download-btn::after {
    display: none !important;
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s;
    border-radius: 1px;
}

/* 搜索框 */
.search-bar {
    margin-top: 70px;
    padding: 15px 20px;
    background: rgba(10, 14, 39, 0.6);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
}

.search-bar .container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-input-wrap {
    flex: 1;
    position: relative;
}

.search-input-wrap input {
    width: 100%;
    padding: 10px 16px 10px 40px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--glass-border);
    border-radius: 25px;
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    transition: all 0.3s;
}

.search-input-wrap input:focus {
    border-color: var(--aurora-purple);
    box-shadow: 0 0 20px rgba(124, 58, 237, 0.2);
}

.search-input-wrap .search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 14px;
}

.search-result-tip {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 8px;
    padding: 16px;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-accent);
    font-size: 0.85rem;
    z-index: 100;
}

.search-result-tip .scanning-dot {
    display: inline-block;
    animation: blink 1.2s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* Hero 区域 */
.hero {
    padding: 140px 20px 80px;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
    min-height: 600px;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: heroGlow 8s ease-in-out infinite alternate;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: heroGlow 10s ease-in-out infinite alternate-reverse;
}

@keyframes heroGlow {
    0% { transform: scale(1) translate(0, 0); }
    100% { transform: scale(1.2) translate(30px, -20px); }
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 2.8rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff 0%, #a78bfa 50%, #60a5fa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text .hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 30px;
}

.hero-btns {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--gradient-btn);
    color: white;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(124, 58, 237, 0.5);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
}

.btn-outline:hover {
    border-color: var(--aurora-purple);
    background: rgba(124, 58, 237, 0.1);
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-visual img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

/* 面包屑 */
.breadcrumb {
    padding: 90px 0 10px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.breadcrumb a {
    color: var(--text-accent);
    text-decoration: none;
}

.breadcrumb span {
    margin: 0 8px;
}

/* 区块标题 */
.section {
    padding: 80px 20px;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 12px;
    background: linear-gradient(135deg, #fff, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title p {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* 仪表盘 */
.dashboard {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.dash-card {
    text-align: center;
    padding: 30px 20px;
}

.dash-card .dash-value {
    font-size: 2.2rem;
    font-weight: 900;
    background: var(--gradient-btn);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    font-family: 'Inter', monospace;
}

.dash-card .dash-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
}

.dash-card .dash-change {
    display: inline-block;
    margin-top: 8px;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.dash-change.up {
    background: rgba(34, 197, 94, 0.15);
    color: #22c55e;
}

.dash-change.down {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

/* 动态数字动画 */
@keyframes countUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.dash-value {
    animation: countUp 0.8s ease-out;
}

/* 新闻卡片网格 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.news-card {
    padding: 24px;
    cursor: pointer;
}

.news-card .news-date {
    color: var(--text-accent);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.news-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-card p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.7;
}

/* 专家卡片 */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.expert-card {
    padding: 28px;
    display: flex;
    gap: 16px;
}

.expert-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--gradient-btn);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 800;
    color: white;
    flex-shrink: 0;
}

.expert-info h5 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.expert-info .expert-role {
    color: var(--text-accent);
    font-size: 0.8rem;
    margin-bottom: 10px;
}

.expert-info .expert-quote {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.7;
    font-style: italic;
}

/* 评价卡片 */
.review-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.review-card {
    padding: 24px;
}

.review-stars {
    color: #fbbf24;
    margin-bottom: 12px;
    font-size: 0.9rem;
}

.review-content {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 12px;
}

.review-user {
    color: var(--text-accent);
    font-size: 0.85rem;
    font-weight: 600;
}

/* 论坛列表 */
.forum-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.forum-item {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
}

.forum-item .forum-title {
    font-size: 0.95rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.forum-item .hot-tag {
    display: inline-block;
    padding: 2px 8px;
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
}

.forum-item .forum-stats {
    display: flex;
    gap: 20px;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

/* 分享按钮 */
.share-section {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
    padding: 20px 0;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    background: var(--glass-bg);
}

.share-btn:hover {
    transform: translateY(-2px);
    border-color: var(--aurora-purple);
}

.share-btn.wechat { border-color: rgba(7, 193, 96, 0.3); }
.share-btn.weibo { border-color: rgba(230, 22, 45, 0.3); }
.share-btn.douyin { border-color: rgba(254, 44, 85, 0.3); }
.share-btn.bilibili { border-color: rgba(0, 174, 236, 0.3); }

/* 视频卡片 */
.video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.video-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 16/9;
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
}

.video-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

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

.video-card .play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 60px;
    height: 60px;
    background: rgba(124, 58, 237, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.video-card:hover .play-btn {
    transform: translate(-50%, -50%) scale(1);
}

.video-card .play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 10px 0 10px 18px;
    border-color: transparent transparent transparent white;
    margin-left: 4px;
}

.video-card .video-title {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    font-size: 0.85rem;
    font-weight: 600;
}

/* 页脚 */
.footer {
    background: rgba(5, 7, 18, 0.8);
    border-top: 1px solid var(--glass-border);
    padding: 60px 20px 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 12px;
    background: linear-gradient(135deg, #fff, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.7;
    margin-bottom: 16px;
}

.footer-col h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s;
}

.footer-col ul li a:hover {
    color: var(--text-accent);
}

.footer-bottom {
    border-top: 1px solid var(--glass-border);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom .copyright {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.footer-bottom .update-time {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

/* 内页样式 */
.page-header {
    padding: 120px 20px 40px;
    background: var(--gradient-hero);
    text-align: center;
}

.page-header h1 {
    font-size: 2.2rem;
    font-weight: 900;
    margin-bottom: 12px;
    background: linear-gradient(135deg, #fff, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

.content-section {
    padding: 60px 20px;
}

.content-section .article-text {
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}

.content-section .article-text p {
    margin-bottom: 20px;
}

/* 三层加密逻辑展示 */
.security-layers {
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 900px;
    margin: 40px auto;
}

.security-layer {
    padding: 30px;
    position: relative;
    overflow: hidden;
}

.security-layer::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-btn);
    border-radius: 2px;
}

.security-layer h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-accent);
}

.security-layer p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.8;
}

/* SVG 动效区域 */
.svg-animation-container {
    max-width: 700px;
    margin: 40px auto;
    text-align: center;
}

.svg-animation-container svg {
    width: 100%;
    max-width: 600px;
}

/* 交互式步骤条 */
.step-bar {
    display: flex;
    gap: 0;
    margin: 40px auto;
    max-width: 900px;
    overflow-x: auto;
}

.step-item {
    flex: 1;
    min-width: 120px;
    text-align: center;
    padding: 16px 8px;
    cursor: pointer;
    position: relative;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
}

.step-item.active {
    border-bottom-color: var(--aurora-purple);
}

.step-item .step-num {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 2px solid var(--glass-border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 8px;
    transition: all 0.3s;
}

.step-item.active .step-num {
    background: var(--gradient-btn);
    border-color: transparent;
}

.step-item .step-label {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.step-item.active .step-label {
    color: var(--text-accent);
}

.step-content {
    max-width: 800px;
    margin: 30px auto;
    padding: 30px;
}

.step-content h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-accent);
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.8;
}

/* 图片展示 */
.img-showcase {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin: 40px 0;
}

.img-showcase .showcase-item {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--glass-border);
}

.img-showcase .showcase-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.img-showcase .showcase-item .img-caption {
    padding: 12px 16px;
    background: var(--glass-bg);
    font-size: 0.82rem;
    color: var(--text-secondary);
}

/* 联系信息 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.contact-item {
    padding: 20px;
    font-size: 0.88rem;
}

.contact-item .contact-label {
    color: var(--text-accent);
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 0.82rem;
}

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

/* 响应式 */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-visual {
        order: -1;
    }
    .hero-btns {
        justify-content: center;
    }
    .dashboard {
        grid-template-columns: repeat(3, 1fr);
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10, 14, 39, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        border-bottom: 1px solid var(--glass-border);
    }
    .nav-links.show {
        display: flex;
    }
    .hamburger {
        display: flex;
    }
    .hero {
        padding: 120px 20px 60px;
        min-height: auto;
    }
    .hero-text h1 {
        font-size: 1.8rem;
    }
    .dashboard {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .news-grid,
    .expert-grid,
    .review-grid {
        grid-template-columns: 1fr;
    }
    .video-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    .img-showcase {
        grid-template-columns: 1fr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .forum-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    .step-bar {
        flex-wrap: nowrap;
    }
    .section {
        padding: 50px 15px;
    }
    .page-header {
        padding: 100px 15px 30px;
    }
    .page-header h1 {
        font-size: 1.6rem;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 1.5rem;
    }
    .btn-primary, .btn-outline {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    .section-title h2 {
        font-size: 1.5rem;
    }
    .dash-card .dash-value {
        font-size: 1.6rem;
    }
}

/* 懒加载 */
.lazy-load {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.lazy-load.visible {
    opacity: 1;
    transform: translateY(0);
}

/* JSON-LD 隐藏 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 科技图标 - 纯CSS */
.tech-icon {
    width: 48px;
    height: 48px;
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.tech-icon .shield {
    width: 32px;
    height: 36px;
    border: 3px solid var(--aurora-purple);
    border-radius: 4px 4px 16px 16px;
    position: relative;
}

.tech-icon .shield::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 12px;
    border: 2px solid var(--aurora-cyan);
    border-top: none;
    border-radius: 0 0 4px 4px;
}

.tech-icon .chain {
    width: 36px;
    height: 20px;
    display: flex;
    align-items: center;
    gap: 2px;
}

.tech-icon .chain span {
    width: 10px;
    height: 10px;
    border: 2px solid var(--aurora-blue);
    border-radius: 3px;
    transform: rotate(45deg);
}

.tech-icon .wallet-icon {
    width: 32px;
    height: 26px;
    border: 3px solid var(--aurora-purple);
    border-radius: 4px;
    position: relative;
}

.tech-icon .wallet-icon::after {
    content: '';
    position: absolute;
    right: -3px;
    top: 6px;
    width: 12px;
    height: 10px;
    background: var(--aurora-cyan);
    border-radius: 4px 0 0 4px;
}

/* 特性网格 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    text-align: center;
    padding: 30px 20px;
}

.feature-card .feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: var(--gradient-card);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    border: 1px solid var(--glass-border);
}

.feature-card h5 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}