如何用CSS实现加粗标题hover变斜体并修复滚动偏移问题？

修改后代码（两种方案可选） #

方案1：Hover时原标题直接变斜体（无滚动）

适合不需要滚动效果，仅需标题样式变化的场景：

*,
*::after,
*::before {
    box-sizing: border-box;
}

:root {
    font-size: 15px;
}

body {
    margin: 0;
    --color-text: #000000;
    --color-bg: #000000;
    --color-link: #000000;
    --color-link-hover: #000000;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-family: sofia-pro, sans-serif;
}

a {
    text-decoration: none;
    color: var(--color-link);
    outline: #cec7ff;
}

a:hover,
a:focus {
    color: var(--color-link-hover);
    outline: none;
}

.menu {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    padding: 10vh 0 25vh;
    --item-font-size: 5vw;
    counter-reset: menu;
}

.menu__item {
    cursor: default;
    position: relative;
    padding: 0 5vw;
}

.menu__item-link {
    display: inline-block;
    cursor: pointer;
    position: relative;
    -webkit-text-stroke: 0px #000;
    text-stroke: 0px #000;
    -webkit-text-fill-color: #000000;
    text-fill-color: transparent;
    color: transparent;
    font-weight: 900;
    transition: all 0.4s;
}

/* Hover时标题直接变斜体，不隐藏 */
.menu__item-link:hover {
    font-style: italic;
    opacity: 1;
}

.menu__item-img {
    pointer-events: none;
    position: absolute;
    height: 30vh;
    max-height: 400px;
    opacity: 0;
    left: 120%;
    top: 50%;
    transform: translate3d(calc(-100% - 6vw),-30%,0) translate3d(0,10px,0);
    transition: all 0.2s;
}

.menu__item-link:hover + .menu__item-img {
    opacity: 1;
    transform: translate3d(calc(-100% - 6vw),-30%,0);
}

/* 移除滚动相关的marquee元素 */
.marquee {
    display: none;
}

@media screen and (min-width: 53em) {
    .frame {
        text-align: left;
        display: grid;
        align-content: space-between;
        width: 100%;
        padding: 2.5rem 6vw;
        pointer-events: none;
        grid-template-columns: 75% 25%;
        grid-template-rows: auto;
    }
}

方案2：保留滚动斜体标题（移除偏移+解决多标题问题）

适合需要保留滚动效果的场景：

*,
*::after,
*::before {
    box-sizing: border-box;
}

:root {
    font-size: 15px;
}

body {
    margin: 0;
    --color-text: #000000;
    --color-bg: #000000;
    --color-link: #000000;
    --color-link-hover: #000000;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-family: sofia-pro, sans-serif;
}

a {
    text-decoration: none;
    color: var(--color-link);
    outline: #cec7ff;
}

a:hover,
a:focus {
    color: var(--color-link-hover);
    outline: none;
}

.menu {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    padding: 10vh 0 25vh;
    --marquee-width: 100vw;
    --offset: 0vw; /* 移除偏移值 */
    --move-initial: 0; /* 滚动起始位置对齐视口左侧 */
    --move-final: calc(-100%); /* 滚动结束位置完全移出视口 */
    --item-font-size: 5vw;
    counter-reset: menu;
}

.menu__item {
    cursor: default;
    position: relative;
    padding: 0 5vw;
}

.menu__item-link {
    display: inline-block;
    cursor: pointer;
    position: relative;
    -webkit-text-stroke: 0px #000;
    text-stroke: 0px #000;
    -webkit-text-fill-color: #000000;
    text-fill-color: transparent;
    color: transparent;
    transition: opacity 0.4s;
}

.menu__item-link:hover {
    transition-duration: 0.1s;
    opacity: 0;
}

.menu__item-img {
    pointer-events: none;
    position: absolute;
    height: 30vh;
    max-height: 400px;
    opacity: 0;
    left: 120%;
    top: 50%;
    transform: translate3d(calc(-100% - 6vw),-30%,0) translate3d(0,10px,0);
    transition: all 0.2s;
}

.menu__item-link:hover + .menu__item-img {
    opacity: 1;
    transform: translate3d(calc(-100% - 6vw),-30%,0);
}

.marquee {
    position: absolute;
    top: 0;
    left: 5vw; /* 对齐原标题的padding，避免偏移 */
    width: var(--marquee-width);
    overflow: hidden;
    pointer-events: none;
    mix-blend-mode: color-burn;
}

.marquee__inner {
    width: fit-content;
    display: flex;
    position: relative;
    transform: translate3d(var(--move-initial), 0, 0);
    animation: marquee 6s linear infinite;
    animation-play-state: paused;
    opacity: 0;
    transition: opacity 0.1s;
}

.menu__item-link:hover ~ .marquee .marquee__inner {
    animation-play-state: running;
    opacity: 1;
    transition-duration: 0.4s;
}

.marquee span {
    text-align: left;
    white-space: nowrap;
    font-size: var(--item-font-size);
    padding: 0 1vw;
    font-weight: 900;
    line-height: 1.15;
    font-style: italic;
}

.menu__item-link {
    white-space: nowrap;
    font-size: var(--item-font-size);
    padding: 0 1vw;
    font-weight: 900;
    line-height: 1.15;
}

@keyframes marquee {
    0% {
        transform: translate3d(var(--move-initial), 0, 0);
    }

    100% {
        transform: translate3d(var(--move-final), 0, 0);
    }
}

@media screen and (min-width: 53em) {
    .frame {
        text-align: left;
        display: grid;
        align-content: space-between;
        width: 100%;
        padding: 2.5rem 6vw;
        pointer-events: none;
        grid-template-columns: 75% 25%;
        grid-template-rows: auto;
    }
}

关键修改点说明 #

1. 移除偏移值：将.menu中的--offset设为0vw，同时调整滚动动画的起始/结束位置，消除额外偏移。
2. 解决多标题偏移问题：
   • 方案1直接移除滚动的marquee元素，让原标题hover时直接变斜体，彻底避免多标题问题。
   • 方案2调整.marquee的left值对齐原标题的padding，优化动画位置参数，确保滚动时仅显示单个斜体标题且位置准确。
3. 保留图片hover效果：完全保留原代码中图片的hover显示逻辑，hover标题时图片正常弹出。

内容的提问来源于stack exchange，提问作者Buura