/* style.css - 苹果极简高级风 */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;800&display=swap');

:root {
    --apple-bg: #f5f5f7;
    --apple-text: #1d1d1f;
    --apple-gray: #86868b;
    --apple-blue: #0071e3;
    --apple-blue-hover: #0077ED;
    --card-bg: rgba(255, 255, 255, 0.7);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--apple-bg);
    color: var(--apple-text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
}

/* 毛玻璃导航栏 */
.glass-nav {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

/* 渐变文本特效 */
.gradient-text {
    background: linear-gradient(135deg, #1d1d1f 0%, #434344 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.gradient-text-blue {
    background: linear-gradient(135deg, #0071e3 0%, #4facfe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 便当盒卡片布局 (Bento Box) */
.bento-card {
    background: var(--card-bg);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.5);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
    backdrop-filter: blur(10px);
}
.bento-card:hover {
    transform: translateY(-5px) scale(1.01);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

/* 苹果风按钮 */
.btn-apple {
    background-color: var(--apple-blue);
    color: white;
    border-radius: 980px;
    padding: 12px 24px;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.3s ease;
    display: inline-block;
}
.btn-apple:hover {
    background-color: var(--apple-blue-hover);
    transform: scale(1.02);
}

/* 页面入场动画 */
.fade-in-up {
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    transform: translateY(30px);
}
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

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

/* 强调大字号 */
.hero-title {
    font-size: clamp(3rem, 5vw, 5rem);
    letter-spacing: -0.03em;
    line-height: 1.05;
}