@view-transition {
    navigation: auto;
}

:root {
    --blog-white: #ffffff;
    --blog-black: #222222;
    --blog-red: #ff385c;
    --blog-gray: #6a6a6a;
    --blog-light-bg: #f2f2f2;
    --blog-page-bg: #f5f5f7;
    --blog-glass-bg: rgba(255, 255, 255, 0.72);
    --blog-glass-border: rgba(255, 255, 255, 0.68);
    --blog-card-shadow: 0px 0px 0px 1px rgba(0,0,0,0.02), 0px 2px 6px rgba(0,0,0,0.04), 0px 4px 8px rgba(0,0,0,0.08);
    --blog-soft-shadow: 0 18px 50px rgba(80, 90, 130, 0.06);
    --blog-radius-card: 20px;
    --blog-radius-panel: 26px;
    --blog-page-max: 1500px;
    --blog-motion-slow: 8s;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--blog-black);
    line-height: 1.6;
    overflow-x: hidden;
}

.video-hero {
    position: relative;
    width: 100%;
    overflow: hidden;
    background: #eef5ff;
}

.video-hero--fixed {
    position: fixed;
    inset: 0;
    height: 100vh;
    z-index: -1;
}

.video-hero .video-bg {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 1;
}