睿能科技
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.mask {
position: fixed;
top: 0;
left: 0;
width: 100vw;
height: 100vh;
z-index: 101;
background: #091b25;
display: block;
opacity: 0;
visibility: hidden;
pointer-events: none;
transition: opacity .8s ease, visibility .8s ease;
.mask-header {
margin: 1.5625rem auto 1.5625rem;
left: 0;
right: 0;
width: 97%;
height: 4rem;
padding: 0 1.5625rem;
display: flex;
align-items: center;
justify-content: flex-end;
.mask-header__icon-btn {
display: flex;
align-items: center;
justify-content: center;
width: 2.375rem;
height: 2.375rem;
border-radius: .75rem;
&.search-btn {
border: 1px solid rgba(255, 255, 255, 1);
background: transparent;
}
img,
svg {
fill: var(--color-white);
width: 1.3438rem;
height: 1.3438rem;
}
}
}
.mask-content {
padding: 20px;
display: flex;
flex-direction: column;
gap: 20px;
}
.mask-footer__nav-col {
h4 {
color: rgba(255, 255, 255, 1);
font-family: "OPPO Sans 4.0";
font-style: Medium;
font-size: var(--font-16);
line-height: var(--font-18);
font-weight: 500;
letter-spacing: 0rem;
text-align: left;
margin-bottom: 1rem;
}
a {
display: block;
color: rgba(255, 255, 255, 1);
opacity: 0.8;
font-family: "OPPO Sans 4.0";
font-style: Regular;
font-size: var(--font-14);
line-height: var(--font-16);
font-weight: 400;
letter-spacing: 0rem;
text-align: left;
margin-bottom: .875rem;
transition: opacity 0.3s ease;
&:hover {
opacity: 1;
}
}
}
}
.mask.show {
opacity: 1;
visibility: visible;
pointer-events: auto;
}
/* 菜单切换:三条线 → X(由 body.is-mask-open 驱动,与 mask 显隐同步) */
.nav-toggle-icon__bar {
transition:
transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
opacity 0.25s ease;
}
.nav-toggle-icon__bar--top {
transform-origin: 12px 7px;
}
.nav-toggle-icon__bar--mid {
transform-origin: 12px 12px;
}
.nav-toggle-icon__bar--bot {
transform-origin: 12px 17px;
}
body.is-mask-open .nav-toggle-icon__bar--top {
transform: translateY(5px) rotate(45deg);
}
body.is-mask-open .nav-toggle-icon__bar--mid {
opacity: 0;
transform: scaleX(0);
}
body.is-mask-open .nav-toggle-icon__bar--bot {
transform: translateY(-5px) rotate(-45deg);
}
/* 入场 GSAP 动 opacity 时关掉 transition,避免抢过渡;结束后去掉此类再 hover 才有平滑 */
.mask.mask--nav-motion .mask-footer__nav-col a,
.mask.mask--nav-motion .mask-footer__nav-col h4 {
transition: none;
}
/* SplitText 行容器:裁切 y 位移,实现从上向下露出 */
.mask-split-line {
overflow: hidden;
display: block;
}