:root {
    --ww-primary: #1a1a1a;
    --ww-accent: #333;
    --ww-bg: #f8f8f8;
    --ww-card-bg: #ffffff;
    --ww-text: #1a1a1a;
    --ww-text-secondary: #86868b;
    --ww-border: rgba(0, 0, 0, 0.08);
    --ww-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    --safe-area-top: env(safe-area-inset-top, 0px);
    --safe-area-bottom: env(safe-area-inset-bottom, 0px);
    --gap-xs: 0.25rem;
    --gap-sm: 0.5rem;
    --gap-md: 1rem;
    --gap-lg: 1.5rem;
    --gap-xl: 2rem;
}

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

body,
.ww-body {
    font-family: var(--ww-font-family);
    background-color: var(--ww-bg);
    color: var(--ww-text);
    min-height: 100vh;
    overflow-x: hidden;
}

input,
textarea,
.ww-tips-body,
[contenteditable="true"] {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

.hidden {
    display: none !important;
}

.ww-background {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.ww-ripple-layer {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    -webkit-mask-image:
        linear-gradient(rgba(0, 0, 0, 1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 1) 1px, transparent 1px);
    -webkit-mask-size: 28px 28px;
    mask-image:
        linear-gradient(rgba(0, 0, 0, 1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 1) 1px, transparent 1px);
    mask-size: 28px 28px;
}

.ww-mouse-ripple {
    position: absolute;
    width: 2px;
    height: 2px;
    border: 4px solid rgba(0, 0, 0, 0.45);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    box-shadow: 0 0 35px rgba(0, 0, 0, 0.18);
    animation: ww-mouse-ripple-flow 1.4s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
}

@keyframes ww-mouse-ripple-flow {
    0% {
        width: 0;
        height: 0;
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.6);
    }

    15% {
        opacity: 1;
    }

    100% {
        width: 380px;
        height: 380px;
        opacity: 0;
        transform: translate(-50%, -50%) scale(1.8);
        border-width: 0.2px;
    }
}

.ww-h5-body {
    padding-top: constant(safe-area-inset-top, 0);
    padding-bottom: constant(safe-area-inset-bottom, 0);
    padding-left: constant(safe-area-inset-left, 0);
    padding-right: constant(safe-area-inset-right, 0);
    padding-top: var(--safe-area-top);
    padding-bottom: var(--safe-area-bottom);
    padding-left: env(safe-area-inset-left, 0);
    padding-right: env(safe-area-inset-right, 0);
}

.ww-h5-page {
    max-width: 750px;
    margin: 0 auto;
    min-height: 100vh;
    position: relative;
}

.ww-h5-page img {
    max-width: 100%;
    height: auto;
}