* {
    font-family: -apple-system, BlinkMacSystemFont, 'Noto Sans SC', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    letter-spacing: -0.011em;
}
body { 
    scroll-behavior: smooth;
    background: #fbfbfd;
    color: #1d1d1f;
    font-weight: 400;
    line-height: 1.47059;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 导航栏优化 */
nav {
    backdrop-filter: saturate(180%) blur(20px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
}

/* Hero区域优化 */
.hero-gradient { 
    background: linear-gradient(180deg, #000000 0%, #1a1a1a 40%, #2d2d2d 100%);
    position: relative;
    overflow: hidden;
}
.hero-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, rgba(0, 113, 227, 0.18) 0%, transparent 60%);
    opacity: 1;
}
.hero-gradient::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 113, 227, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 113, 227, 0.08) 0%, transparent 50%);
    opacity: 1;
}
.hero-gradient > * {
    position: relative;
    z-index: 1;
}

/* 浮动动画优化 */
.floating {
    animation: floating 4s ease-in-out infinite;
}
@keyframes floating {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-18px) scale(1.03); }
}
.floating i {
    filter: drop-shadow(0 8px 24px rgba(0, 113, 227, 0.4));
}

/* 徽章优化 */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: saturate(180%) blur(20px);
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s cubic-bezier(0.28, 0.11, 0.32, 1);
    font-weight: 500;
    font-size: 15px;
}
.badge:hover {
    background: rgba(255, 255, 255, 0.18);
    transform: scale(1.05) translateY(-2px);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* 卡片优化 */
.feature-card { 
    transition: all 0.5s cubic-bezier(0.28, 0.11, 0.32, 1);
    border: 1px solid rgba(0, 0, 0, 0.06);
    background: #ffffff;
}
.feature-card:hover { 
    transform: translateY(-12px);
    box-shadow: 0 28px 56px rgba(0, 0, 0, 0.12), 0 10px 20px rgba(0, 0, 0, 0.08);
    border-color: rgba(0, 113, 227, 0.2);
}

.apple-card {
    background: #ffffff;
    border-radius: 28px;
    padding: 56px 48px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.06);
    transition: all 0.5s cubic-bezier(0.28, 0.11, 0.32, 1);
    position: relative;
    overflow: hidden;
}
.apple-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, rgba(0, 113, 227, 0.3), transparent);
    opacity: 0;
    transition: opacity 0.5s ease;
}
.apple-card:hover::before {
    opacity: 1;
}
.apple-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.08);
    border-color: rgba(0, 113, 227, 0.15);
}

/* 技术标签优化 */
.tech-tag { 
    background: linear-gradient(135deg, rgba(0, 113, 227, 0.12) 0%, rgba(0, 119, 237, 0.12) 100%);
    color: #0071e3;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8125rem;
    font-weight: 600;
    display: inline-block;
    margin-right: 10px;
    border: 1px solid rgba(0, 113, 227, 0.2);
    white-space: nowrap;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0, 113, 227, 0.1);
}

/* 渐变文字 */
.gradient-text {
    background: linear-gradient(135deg, #0071e3 0%, #0077ed 50%, #0071e3 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    background-size: 200% 200%;
    animation: gradient-shift 3s ease infinite;
}
@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* 分割线 */
.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.08), transparent);
    margin: 100px 0;
}

/* 导航链接 */
.nav-link {
    position: relative;
    transition: color 0.3s cubic-bezier(0.28, 0.11, 0.32, 1);
    font-weight: 400;
    color: #1d1d1f;
    font-size: 17px;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2.5px;
    background: linear-gradient(90deg, #0071e3, #0077ed);
    transition: width 0.3s cubic-bezier(0.28, 0.11, 0.32, 1);
    border-radius: 2px;
}
.nav-link:hover {
    color: #0071e3;
}
.nav-link:hover::after {
    width: 100%;
}

/* 行业卡片 */
.industry-card {
    transition: all 0.5s cubic-bezier(0.28, 0.11, 0.32, 1);
    border-radius: 24px;
    padding: 44px;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}
.industry-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #0071e3, #0077ed);
    transform: scaleX(0);
    transition: transform 0.5s ease;
}
.industry-card:hover::before {
    transform: scaleX(1);
}
.industry-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 113, 227, 0.15);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.08);
}

/* 图标容器 */
.icon-wrapper {
    width: 80px;
    height: 80px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 28px;
    background: linear-gradient(135deg, #0071e3 0%, #0077ed 100%);
    color: white;
    font-size: 36px;
    box-shadow: 0 8px 24px rgba(0, 113, 227, 0.3);
    transition: all 0.3s ease;
}
.icon-wrapper:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 12px 32px rgba(0, 113, 227, 0.4);
}

/* Apple-style 按钮 */
.apple-button {
    background: linear-gradient(135deg, #0071e3 0%, #0077ed 100%);
    color: white;
    padding: 16px 36px;
    border-radius: 980px;
    font-weight: 500;
    font-size: 17px;
    transition: all 0.3s cubic-bezier(0.28, 0.11, 0.32, 1);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0, 113, 227, 0.25);
    text-decoration: none;
    display: inline-block;
    position: relative;
    overflow: hidden;
}
.apple-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}
.apple-button:hover::before {
    left: 100%;
}
.apple-button:hover {
    background: linear-gradient(135deg, #0077ed 0%, #0071e3 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 113, 227, 0.35);
}
.apple-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(0, 113, 227, 0.25);
}

/* 更大的留白 */
.section-padding {
    padding: 140px 0;
}

/* 标题样式 */
.apple-heading {
    font-size: 56px;
    font-weight: 600;
    line-height: 1.07143;
    letter-spacing: -0.005em;
    color: #1d1d1f;
    position: relative;
}

.apple-subheading {
    font-size: 28px;
    font-weight: 400;
    line-height: 1.14286;
    letter-spacing: 0.007em;
    color: #86868b;
    margin-top: 10px;
}

/* 亮点标签 */
.highlight-badge {
    background: linear-gradient(135deg, rgba(0, 113, 227, 0.15) 0%, rgba(0, 119, 237, 0.15) 100%);
    backdrop-filter: saturate(180%) blur(20px);
    border: 1px solid rgba(0, 113, 227, 0.25);
    box-shadow: 0 4px 16px rgba(0, 113, 227, 0.2);
    animation: pulse-glow 2s ease-in-out infinite;
}
@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 4px 16px rgba(0, 113, 227, 0.2); }
    50% { box-shadow: 0 6px 24px rgba(0, 113, 227, 0.3); }
}

/* 响应式优化 */
@media (max-width: 768px) {
    .section-padding {
        padding: 80px 0;
    }
    .apple-heading {
        font-size: 40px;
    }
    .apple-subheading {
        font-size: 21px;
    }
    .apple-card {
        padding: 36px 28px;
        border-radius: 20px;
    }
    nav {
        height: 56px;
    }
}

/* 淡入动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 优化表单输入框 */
input:focus {
    background: rgba(255, 255, 255, 0.15) !important;
    border-color: rgba(255, 255, 255, 0.4) !important;
}

/* 优化图标渐变 */
.icon-gradient-blue {
    background: linear-gradient(135deg, #0071e3 0%, #0077ed 100%);
}
.icon-gradient-green {
    background: linear-gradient(135deg, #34c759 0%, #30d158 100%);
}
.icon-gradient-orange {
    background: linear-gradient(135deg, #ff9500 0%, #ff9f0a 100%);
}
.icon-gradient-purple {
    background: linear-gradient(135deg, #af52de 0%, #bf5af2 100%);
}