/* 产品体验页面专用样式 */
.demo-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
    overflow: hidden;
}

.demo-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: rgba(0, 99, 247, 0.03);
    border-radius: 50%;
    animation: float 20s infinite;
}

.demo-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: rgba(0, 99, 247, 0.03);
    border-radius: 50%;
    animation: float 15s infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(180deg); }
}

.demo-section .container {
    position: relative;
    z-index: 1;
}

.demo-section .section-title {
    color: #1a1a1a;
}

.demo-section .section-title h2 {
    color: #1a1a1a;
}

.demo-section .section-title p {
    color: #666;
    opacity: 1;
}

/* 分组标题 */
.demo-title {
    text-align: center;
    margin: 60px 0 40px;
}

.demo-title h3 {
    color: #1a1a1a;
    font-size: 32px;
    font-weight: 700;
    position: relative;
    display: inline-block;
    padding-bottom: 15px;
    letter-spacing: -0.5px;
}

.demo-title h3:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: #0063F7;
    border-radius: 2px;
    box-shadow: 0 2px 10px rgba(0, 99, 247, 0.3);
}

/* 二维码卡片 */
.qrcode-card {
    text-align: center;
    padding: 25px;
    background: #fff !important;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.qrcode-card:hover {
    background: #fff !important;
    transform: translateY(-10px);
    box-shadow: 0 15px 50px rgba(0, 99, 247, 0.2);
}

.qrcode-box {
    width: 140px;
    height: 140px;
    margin: 0 auto 20px;
    padding: 10px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.qrcode-card:hover .qrcode-box {
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
    transform: rotate(-3deg);
}

.qrcode-box::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, #0063F7, #0063F7);
    border-radius: 18px;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: -1;
}

.qrcode-card:hover .qrcode-box::before {
    opacity: 0.2;
}

.qrcode-box img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: relative;
    z-index: 1;
}

.qrcode-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 8px;
    letter-spacing: -0.2px;
}

.qrcode-card p {
    font-size: 14px;
    color: #666;
}

/* 演示账号卡片 */
.demo-card {
    text-align: center;
    background: #fff !important;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.demo-card:hover {
    background: #fff !important;
}

.demo-card .icon-box {
    background: #0063F7;
    border: 2px solid transparent;
    box-shadow: 0 8px 25px rgba(0, 99, 247, 0.3);
}

.demo-card:hover .icon-box {
    background: #0052CC;
    border-color: transparent;
    transform: scale(1.1) rotate(-5deg);
}

.demo-card .icon-box i {
    color: #fff;
    transition: color 0.3s;
}

.demo-card:hover .icon-box i {
    color: #fff;
}

.demo-card h3 {
    color: #1a1a1a;
    font-size: 20px;
    margin-bottom: 20px;
}

.demo-info {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 25px;
}

.demo-info p {
    margin: 10px 0;
    font-size: 15px;
    color: #444;
    text-align: left;
}

.demo-info strong {
    color: #1a1a1a;
    font-weight: 600;
}

.tips-box {
    background: #fff;
    border: 2px dashed #e0e0e0;
    border-radius: 16px;
    padding: 40px;
    margin-top: 60px;
    color: #444;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.tips-box::before {
    content: '⚠️';
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 48px;
    opacity: 0.1;
}

.tips-box h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.3px;
    color: #1a1a1a;
}

.tips-box p {
    font-size: 16px;
    line-height: 1.8;
    margin: 10px 0;
    opacity: 1;
    color: #666;
}