/* ========== 页头（仅首页使用的吸顶变体） ========== */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* 导航内的内联语言切换文字（index 使用此代替 lang-switcher） */
.nav .lang {
    color: #888;
    font-size: 14px;
    border-left: 1px solid #444;
    padding-left: 25px;
    margin-left: 10px;
}

/* ========== 首屏区域 ========== */
.hero {
    background-image: url("../pic/bg1.webp");
    background-size: cover;
    background-position: center bottom;
    background-repeat: no-repeat;
    /* --site-header-height 由 js/components.js 在注入共享页头后设置；
       62px 兜底值匹配吸顶页头的 15px 内边距 + 约 32px 内容 + 15px 内边距。 */
    height: calc(100vh - var(--site-header-height, 62px));
    padding: 0 0 80px;
    position: relative;
    animation: anim-fade-in 0.8s ease both;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        to top,
        rgba(0, 0, 0, 0.85) 0%,
        rgba(0, 0, 0, 0.55) 35%,
        rgba(0, 0, 0, 0.15) 65%,
        rgba(0, 0, 0, 0) 100%
    );
    z-index: 1;
    pointer-events: none;
}

/* 滚动提示 —— 显示在首屏底部，滚动时淡出 */
.hero-scroll-cue {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 13px;
    letter-spacing: 2px;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
    pointer-events: none;
    animation: hero-scroll-bounce 2.2s ease-in-out infinite,
               anim-fade-in 1.2s ease 0.4s both;
    transition: opacity 0.4s ease;
}

.hero-scroll-cue.is-hidden {
    opacity: 0;
}

.hero-scroll-cue-icon {
    display: inline-flex;
    font-size: 18px;
    line-height: 1;
    animation: anim-icon-bob 1.6s ease-in-out infinite;
}

@keyframes hero-scroll-bounce {
    0%, 100% { transform: translate(-50%, 0); }
    50%      { transform: translate(-50%, 6px); }
}

@media (max-width: 768px) {
    .hero-scroll-cue {
        bottom: 20px;
        font-size: 12px;
        letter-spacing: 1.5px;
    }
    .hero-scroll-cue-icon {
        font-size: 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .hero-scroll-cue {
        animation: none;
    }
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-placeholder {
    width: 100%;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #4a90d9 0%, #357abd 100%);
    color: rgba(255, 255, 255, 0.6);
    font-size: 24px;
    font-weight: bold;
}

/* ========== 特性区块 ========== */
.features {
    background: #1a2332;
    padding: 60px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    width: 100%;
}

.feature-card {
    position: relative;
    display: flex;
    gap: 0;
    align-items: stretch;
    background: #243447;
    padding: 0;
    border-radius: 0;
    overflow: hidden;
    min-height: 320px;
    animation: anim-fade-up 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) both;
    transition: transform 0.35s cubic-bezier(0.2, 0.7, 0.2, 1),
                box-shadow 0.35s ease;
}

.feature-card:nth-child(2) {
    animation-delay: 0.15s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.25);
}

.feature-card-image {
    position: relative;
    flex-shrink: 0;
    width: 38%;
    border-radius: 0;
    overflow: hidden;
    background: #1a2332;
}

.feature-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
    display: block;
    transition: transform 0.6s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.feature-card:hover .feature-card-image img {
    transform: scale(1.05);
}

/* 渐变叠加层：图片侧贴近文字的一侧 */
.feature-card-image::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 80px;
    background: linear-gradient(to right, transparent, #243447);
    pointer-events: none;
}

/* 首张卡片图在左 → 渐变从图右边缘向文字方向淡出 */
.feature-card:nth-child(1) .feature-card-image::after {
    left: auto;
    right: 0;
    background: linear-gradient(to left, transparent, #243447);
}

.feature-card-content {
    flex: 1;
    color: #c9d4e0;
    padding: 36px 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.feature-card-content h3 {
    color: #fff;
    font-size: 22px;
    margin-bottom: 14px;
}

.feature-card-content p {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 12px;
    color: #a8b6c8;
}

.feature-card-content p:last-child {
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .features {
        padding: 40px 0;
    }
    .feature-card {
        flex-direction: column;
        min-height: 0;
    }
    .feature-card-image {
        width: 100%;
        height: 220px;
    }
    .feature-card-image::after {
        left: 0;
        right: 0;
        bottom: 0;
        top: auto;
        width: 100%;
        height: 60px;
        background: linear-gradient(to bottom, transparent, #243447);
    }
    .feature-card-content {
        padding: 24px 20px;
    }
}

/* ========== 下载区块 ========== */
.downloads {
    background-color: #fff;
    padding: 80px 60px;
    text-align: center;
}

.section-title {
    font-size: 32px;
    color: #333;
    margin-bottom: 50px;
    position: relative;
    display: inline-block;
    padding-bottom: 12px;
    animation: anim-fade-down 0.6s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 56px;
    height: 3px;
    background-color: #4a90d9;
    border-radius: 2px;
    transform: translateX(-50%) scaleX(0);
    transform-origin: center;
    animation: anim-underline-grow 0.6s cubic-bezier(0.2, 0.7, 0.2, 1) 0.35s forwards;
}

/* ========== 画廊区块 ========== */
.gallery {
    background-color: #f5f5f5;
    padding: 80px 60px;
    text-align: center;
}

.gallery-item {
    cursor: zoom-in;
    position: relative;
    border-radius: 10px;
    animation: anim-pop-in 0.55s cubic-bezier(0.2, 0.8, 0.3, 1.2) both;
    transition: transform 0.3s cubic-bezier(0.2, 0.7, 0.2, 1),
                box-shadow 0.3s ease;
}

.gallery-grid > .gallery-item:nth-child(1)  { animation-delay: 0.05s; }
.gallery-grid > .gallery-item:nth-child(2)  { animation-delay: 0.12s; }
.gallery-grid > .gallery-item:nth-child(3)  { animation-delay: 0.19s; }
.gallery-grid > .gallery-item:nth-child(4)  { animation-delay: 0.26s; }
.gallery-grid > .gallery-item:nth-child(5)  { animation-delay: 0.33s; }
.gallery-grid > .gallery-item:nth-child(6)  { animation-delay: 0.40s; }
.gallery-grid > .gallery-item:nth-child(7)  { animation-delay: 0.47s; }
.gallery-grid > .gallery-item:nth-child(8)  { animation-delay: 0.54s; }
.gallery-grid > .gallery-item:nth-child(9)  { animation-delay: 0.61s; }
.gallery-grid > .gallery-item:nth-child(10) { animation-delay: 0.68s; }
.gallery-grid > .gallery-item:nth-child(11) { animation-delay: 0.75s; }
.gallery-grid > .gallery-item:nth-child(12) { animation-delay: 0.82s; }

.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.18);
}

/* ========== 画廊灯箱 ========== */
.lightbox {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.92);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 60px 80px;
    animation: lb-fade 0.22s ease;
}

.lightbox.is-open {
    display: flex;
}

@keyframes lb-fade {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.lightbox-image-wrap {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    animation: anim-pop-in 0.35s cubic-bezier(0.2, 0.7, 0.2, 1.2) both;
}

.lightbox-image {
    max-width: min(90vw, calc(100vw - 160px));
    max-height: min(80vh, calc(100vh - 160px));
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
    user-select: none;
    -webkit-user-drag: none;
    will-change: transform;
    transition: transform 0.1s ease-out;
}

.lightbox-caption {
    margin-top: 16px;
    text-align: center;
    color: #fff;
    font-size: 16px;
    letter-spacing: 0.4px;
}

.lightbox-counter {
    position: fixed;
    top: 20px;
    left: 24px;
    color: rgba(255, 255, 255, 0.65);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.5px;
}

.lightbox-close {
    position: fixed;
    top: 20px;
    right: 24px;
    width: 44px;
    height: 44px;
    border: none;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border-radius: 50%;
    cursor: pointer;
    font-size: 26px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease, transform 0.25s ease, box-shadow 0.25s ease;
    z-index: 2001;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: rotate(90deg) scale(1.06);
    box-shadow: 0 6px 18px rgba(255, 255, 255, 0.2);
}

.lightbox-close:active {
    transform: rotate(90deg) scale(0.95);
}

.lightbox-nav {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
    border: none;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border-radius: 50%;
    cursor: pointer;
    font-size: 28px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease, transform 0.25s ease, box-shadow 0.25s ease;
    z-index: 2001;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.28);
    box-shadow: 0 6px 18px rgba(255, 255, 255, 0.15);
}

.lightbox-prev:hover { transform: translateY(-50%) translateX(-3px); }
.lightbox-next:hover { transform: translateY(-50%) translateX(3px); }

.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

body.lightbox-open {
    overflow: hidden;
}

@media (max-width: 768px) {
    .lightbox {
        padding: 60px 16px;
    }
    .lightbox-image {
        max-width: min(95vw, calc(100vw - 32px));
        max-height: min(75vh, calc(100vh - 140px));
    }
    .lightbox-nav {
        width: 40px;
        height: 40px;
        font-size: 22px;
        top: auto;
        bottom: 24px;
        transform: none;
        z-index: 2001;
    }
    .lightbox-prev { left: 20px; }
    .lightbox-next { right: 20px; }
    .lightbox-prev:hover { transform: translateX(-3px); }
    .lightbox-next:hover { transform: translateX(3px); }
    .lightbox-close {
        top: 12px;
        right: 12px;
        width: 38px;
        height: 38px;
        font-size: 22px;
    }
    .lightbox-caption {
        font-size: 14px;
        margin-top: 12px;
    }
    .lightbox-counter {
        top: 12px;
        left: 12px;
        right: auto;
        font-size: 12px;
    }
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    max-width: 1100px;
    margin: 0 auto;
}

.gallery-item {
    position: relative;
    height: 220px;
    background-color: #ddd;
    border-radius: 10px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 14px;
}

.gallery-item > img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.45s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.gallery-item:hover > img {
    transform: scale(1.06);
}

.gallery-item .overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 15px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: #fff;
    text-align: left;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.3s, transform 0.3s;
}

.gallery-item:hover .overlay {
    opacity: 1;
    transform: translateY(0);
}

.gallery-item.has-label .overlay {
    opacity: 1;
    transform: translateY(0);
}

/* ========== Mod 特性区块 ========== */
.mod-features {
    background: #1a2332;
    padding: 80px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.mod-features-title {
    color: #fff;
    font-size: 32px;
    text-align: center;
    margin-bottom: 50px;
    letter-spacing: 2px;
    position: relative;
    padding-bottom: 14px;
    animation: anim-fade-down 0.6s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.mod-features-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 56px;
    height: 3px;
    background-color: #f0a500;
    border-radius: 2px;
    transform: translateX(-50%) scaleX(0);
    transform-origin: center;
    animation: anim-underline-grow 0.6s cubic-bezier(0.2, 0.7, 0.2, 1) 0.35s forwards;
}

.mod-features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    width: 100%;
}

.mod-features-grid > * {
    animation: anim-fade-up 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.mod-features-grid > *:nth-child(1) { animation-delay: 0.05s; }
.mod-features-grid > *:nth-child(2) { animation-delay: 0.15s; }
.mod-features-grid > *:nth-child(3) { animation-delay: 0.25s; }
.mod-features-grid > *:nth-child(4) { animation-delay: 0.35s; }
.mod-features-grid > *:nth-child(5) { animation-delay: 0.45s; }
.mod-features-grid > *:nth-child(6) { animation-delay: 0.55s; }

.mod-features-img {
    position: relative;
    aspect-ratio: 2560 / 1350;
    overflow: hidden;
    background: #243447;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.25);
    font-size: 14px;
    letter-spacing: 1px;
    cursor: zoom-in;
}

.mod-features-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.mod-features-img:hover img {
    transform: scale(1.07);
}

.mod-features-img::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        transparent 0%,
        rgba(74, 144, 217, 0.18) 100%
    );
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.mod-features-img:hover::after {
    opacity: 1;
}

.mod-features-text {
    padding: 50px 48px;
    background: #243447;
    color: #c9d4e0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 200px;
}

.mod-features-text h3 {
    color: #fff;
    font-size: 20px;
    margin-bottom: 14px;
    transition: color 0.3s ease;
}

.mod-features-text:hover h3 {
    color: #f0a500;
}

.mod-features-text p {
    font-size: 14px;
    line-height: 1.7;
    color: #a8b6c8;
    margin: 0;
}

@media (max-width: 768px) {
    .mod-features {
        padding: 50px 0;
        align-items: stretch;
    }
    .mod-features-grid {
        grid-template-columns: 1fr !important;
        width: 100% !important;
        min-width: 100% !important;
        max-width: 100% !important;
    }
    .mod-features-img {
        width: 100% !important;
        min-width: 100% !important;
        max-width: 100% !important;
        flex-shrink: 0;
    }
    /* HTML 源码顺序是 img,img,txt,txt,img,img,txt,txt，因此宽屏 2 列布局
       会把两张图和两段文字并排。在窄屏上，单列堆叠会把两张图凑到一起、
       两段文字凑到一起；这里重排成图 / 文成对堆叠。动画延迟也按视觉
       （重排后）顺序重写，否则 img2 / img4 会在其前面文字还没显示前
       先于空行淡入。 */
    .mod-features-grid > :nth-child(1) { order: 0; animation-delay: 0.05s; } /* img1 → row 1 */
    .mod-features-grid > :nth-child(2) { order: 3; animation-delay: 0.25s; } /* img2 → row 3 */
    .mod-features-grid > :nth-child(3) { order: 2; animation-delay: 0.15s; } /* txt1 → row 2 */
    .mod-features-grid > :nth-child(4) { order: 4; animation-delay: 0.35s; } /* txt2 → row 4 */
    .mod-features-grid > :nth-child(5) { order: 5; animation-delay: 0.45s; } /* img3 → row 5 */
    .mod-features-grid > :nth-child(6) { order: 7; animation-delay: 0.65s; } /* img4 → row 7 */
    .mod-features-grid > :nth-child(7) { order: 6; animation-delay: 0.55s; } /* txt3 → row 6 */
    .mod-features-grid > :nth-child(8) { order: 8; animation-delay: 0.75s; } /* txt4 → row 8 */
    .mod-features-img {
        aspect-ratio: 2560 / 1350;
        max-height: 280px;
    }
    .mod-features-text {
        padding: 30px 24px;
    }
}

/* ========== 页脚 ========== */
.footer {
    background-color: #1a1a2e;
    padding: 30px 60px;
    text-align: center;
    color: #666;
    font-size: 14px;
    animation: anim-fade-in 0.8s ease both;
}

.footer p {
    animation: anim-fade-up 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) 0.2s both;
}

/* ========== 返回顶部 ==========
   完整的 back-to-top 样式（与 .menu-toggle 成对）位于 common.css。
   因此 landing.html 不需要本地覆盖 —— 同一个圆形按钮在 landing 与
   指南页上都一致渲染。SVG 箭头 + 可选的"顶部"标签同时匹配 index.html
   中的纯 <svg> 与 creative-plaza 上装饰更多的按钮（后者额外加上了
   .back-to-top-arrow 类与 .back-to-top-label span）。 */

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header {
        padding: 15px 30px;
        flex-direction: column;
        gap: 15px;
    }

    .nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .nav .lang {
        border-left: none;
        padding-left: 0;
        margin-left: 0;
    }

    .hero {
        padding: 0 30px;
        min-height: 420px;
    }

    .hero-placeholder {
        height: 350px;
    }

    .downloads,
    .gallery {
        padding: 40px 16px;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
        width: 100%;
        max-width: none;
    }

    .gallery-item {
        height: 250px;
    }
}

/* ========== 首屏信息（vp-hero —— 仅 index.html 使用） ==========
   从 index.html 中的内联 <style> 块抽取而来。 */
.vp-hero-info {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 80px;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 60px;
    padding: 0 60px;
    width: 100%;
}

.vp-hero-image {
    width: 280px;
    height: 280px;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 24px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.18);
    background: #fff;
    flex-shrink: 0;
    animation: anim-pop-in 0.7s cubic-bezier(0.2, 0.8, 0.3, 1.3) 0.1s both,
               anim-soft-float 6s ease-in-out 1s infinite;
    transition: transform 0.35s cubic-bezier(0.2, 0.7, 0.2, 1),
                box-shadow 0.35s ease;
}

.vp-hero-image:hover {
    transform: scale(1.04) rotate(-1.5deg);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
}

.vp-hero-infos {
    flex: 1;
}

.vp-hero-title {
    font-size: 42px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 12px;
    line-height: 1.2;
    animation: anim-fade-up 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) 0.25s both;
}

#main-description {
    font-size: 20px;
    color: #5a6c7d;
    margin-bottom: 24px;
    animation: anim-fade-up 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) 0.4s both;
}

.vp-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    animation: anim-fade-up 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) 0.55s both;
}

.vp-hero-action {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.2, 0.7, 0.2, 1);
    border: 2px solid transparent;
}

.vp-hero-action.primary {
    background: #4a90d9;
    color: #fff;
    border-color: #4a90d9;
}

.vp-hero-action.primary:hover {
    background: #357abd;
    border-color: #357abd;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 144, 217, 0.3);
}

.vp-hero-action.default {
    background: #fff;
    color: #4a90d9;
    border-color: #4a90d9;
}

.vp-hero-action.default:hover {
    background: #4a90d9;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 144, 217, 0.3);
}

.vp-hero-action .vp-icon {
    width: 16px;
    height: 16px;
    transition: transform 0.3s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.vp-hero-action:hover .vp-icon {
    transform: translateY(-2px) scale(1.12);
}

.vp-hero-action:active {
    transform: scale(0.97);
}

/* 主 CTA 按钮悬停时的扫光效果 */
.vp-hero-action.primary::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        100deg,
        transparent 0%,
        rgba(255, 255, 255, 0.35) 50%,
        transparent 100%
    );
    transform: translateX(-160%) skewX(-18deg);
    pointer-events: none;
}

.vp-hero-action.primary:hover::before {
    animation: anim-shine-sweep 0.9s ease forwards;
}

/* 保留 transform-origin / 等价行为，让主按钮看起来"活"过来。
   同时为上方扫光提供所需的 position / overflow hidden。 */
.vp-hero-action {
    position: relative;
    overflow: hidden;
}

/* 当 .vp-hero-info 位于深色首屏区块上时覆盖文字色 */
.vp-hero-info .vp-hero-title {
    color: #fff;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.vp-hero-info #main-description {
    color: rgba(255, 255, 255, 0.92);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* 首屏专属主按钮覆盖：按钮在深色首屏上是白色，所以白色扫光看不见。
   用蓝色扫光替代，并恢复原块提供的颜色覆盖。 */
.vp-hero-info .vp-hero-action.primary {
    background: #fff;
    color: #4a90d9;
    border-color: #fff;
}

.vp-hero-info .vp-hero-action.primary::before {
    background: linear-gradient(
        100deg,
        transparent 0%,
        rgba(74, 144, 217, 0.28) 50%,
        transparent 100%
    );
}

.vp-hero-info .vp-hero-action.primary:hover {
    background: #f0f7ff;
    color: #357abd;
    border-color: #f0f7ff;
}

.vp-hero-info .vp-hero-action.default {
    background: transparent;
    color: #fff;
    border-color: #fff;
}

.vp-hero-info .vp-hero-action.default:hover {
    background: #fff;
    color: #4a90d9;
    border-color: #fff;
}

@media (max-width: 768px) {
    .vp-hero-info {
        flex-direction: column;
        padding: 0 20px;
        gap: 24px;
        text-align: center;
    }

    .vp-hero-image {
        width: 200px;
        height: 200px;
        aspect-ratio: 1 / 1;
        border-radius: 20px;
    }

    .vp-hero-title {
        font-size: 28px;
    }

    .vp-hero-actions {
        justify-content: center;
    }
}