/* ==========================================================================
   凹印仓库 · 产品展示（沿用 PC 版设计变量与顶栏 / 页脚）
   ========================================================================== */

.ku-kicker {
    color: var(--pc-brand);
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ------------------------------ 首页 Hero ------------------------------ */
.ku-hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 400px;
    gap: 30px;
    align-items: center;
    padding: 40px 44px;
    margin-bottom: 26px;
    border-radius: 20px;
    border: 1px solid #ffe3e4;
    background:
        radial-gradient(760px 300px at 8% -20%, #ffffff 0%, rgba(255, 255, 255, 0) 62%),
        linear-gradient(118deg, #fff 0%, #fff6f5 58%, #fff 100%);
    overflow: hidden;
}
.ku-hero::after {
    content: "";
    position: absolute;
    right: -120px;
    bottom: -160px;
    width: 380px;
    height: 380px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 90, 95, .12), transparent 68%);
}
.ku-hero-text { position: relative; z-index: 2; }
.ku-hero h1 {
    margin-top: 10px;
    font-size: 40px;
    line-height: 1.2;
    letter-spacing: 1px;
}
.ku-hero-desc {
    margin-top: 12px;
    max-width: 520px;
    color: var(--pc-text-2);
    font-size: 14.5px;
    line-height: 1.75;
}
.ku-hero-stats { display: flex; flex-wrap: wrap; gap: 30px; margin-top: 22px; }
.ku-hero-stats b { display: block; font-size: 24px; font-weight: 600; line-height: 1.2; }
.ku-hero-stats em { color: var(--pc-text-3); font-size: 12.5px; font-style: normal; }
.ku-hero-actions { display: flex; gap: 10px; margin-top: 24px; }

.ku-hero-visual { position: relative; height: 300px; z-index: 1; }
.ku-hero-card {
    position: absolute;
    display: block;
    width: 270px;
    border-radius: 14px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 16px 36px rgba(23, 30, 45, .14);
    transition: transform .25s ease;
}
.ku-hero-card img { width: 100%; height: 170px; object-fit: cover; }
.ku-hero-card span {
    display: block;
    padding: 9px 13px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--pc-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.ku-hero-card-1 { left: 0; top: 28px; transform: rotate(-6deg); z-index: 1; }
.ku-hero-card-2 { right: 0; top: 0; transform: rotate(4deg); z-index: 2; }
.ku-hero-card-3 { right: 34px; bottom: 0; transform: rotate(-2deg); z-index: 3; }
.ku-hero-card:hover { transform: translateY(-6px) rotate(0); z-index: 9; }

/* ------------------------------ 区块 ------------------------------ */
.ku-section { margin-top: 34px; }
.ku-section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}
.ku-section-head h2 { font-size: 21px; letter-spacing: .3px; }
.ku-section-head p { margin-top: 4px; color: var(--pc-text-3); font-size: 13px; }
.ku-section-meta { color: var(--pc-text-3); font-size: 12.5px; }
.ku-section-side { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.ku-more { color: var(--pc-blue); font-size: 13.5px; }

/* ------------------------------ 分类卡 ------------------------------ */
.ku-cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.ku-cat-card {
    display: block;
    background: var(--pc-card);
    border-radius: var(--pc-radius);
    box-shadow: var(--pc-shadow);
    overflow: hidden;
    transition: transform .18s, box-shadow .18s;
}
.ku-cat-card:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(23, 30, 45, .1); }
.ku-cat-cover { aspect-ratio: 1000 / 520; background: #f0f2f5; overflow: hidden; }
.ku-cat-cover img { width: 100%; height: 100%; object-fit: cover; }
.ku-cat-body { padding: 16px 18px 18px; }
.ku-cat-body strong { display: flex; align-items: baseline; gap: 8px; font-size: 17px; }
.ku-cat-body strong em {
    color: var(--pc-text-3);
    font-size: 10.5px;
    font-style: normal;
    letter-spacing: 1.4px;
}
.ku-cat-body p {
    margin-top: 7px;
    color: var(--pc-text-2);
    font-size: 13px;
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.ku-cat-meta { display: flex; gap: 16px; margin-top: 12px; color: var(--pc-text-3); font-size: 12px; }

/* ------------------------------ 二级分类速览 ------------------------------ */
.ku-subwrap { padding: 6px 22px; }
.ku-subrow { display: flex; gap: 18px; padding: 15px 0; border-bottom: 1px solid var(--pc-line); }
.ku-subrow:last-child { border-bottom: 0; }
.ku-subrow-cat {
    flex: 0 0 96px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14.5px;
    font-weight: 600;
}
.ku-subrow-cat i { width: 8px; height: 8px; border-radius: 50%; }
.ku-subrow-chips { display: flex; flex-wrap: wrap; gap: 8px; }

.ku-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 16px;
    background: #f5f6f8;
    color: var(--pc-text-2);
    font-size: 13px;
    transition: background .15s, color .15s;
}
.ku-chip em { color: var(--pc-text-3); font-size: 11px; font-style: normal; }
.ku-chip:hover { background: #eceef2; color: var(--pc-text); }
.ku-chip.is-on { background: var(--pc-brand); color: #fff; }
.ku-chip.is-on em { color: rgba(255, 255, 255, .8); }
.ku-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 4px 0 18px; }

/* ------------------------------ 产品卡 ------------------------------ */
.ku-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.ku-grid-3 { grid-template-columns: repeat(3, 1fr); }
.ku-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--pc-card);
    border-radius: var(--pc-radius);
    box-shadow: var(--pc-shadow);
    overflow: hidden;
    transition: transform .18s, box-shadow .18s;
}
.ku-card:hover { transform: translateY(-3px); box-shadow: 0 12px 26px rgba(23, 30, 45, .1); }
/* 整卡点击热区（卡片内还有独立按钮，故用覆盖层而非整卡 <a>） */
.ku-card-hit {
    position: absolute;
    inset: 0;
    z-index: 1;
    border-radius: inherit;
}
.ku-card-hit:focus-visible { outline: 2px solid var(--pc-brand); outline-offset: -2px; }
.ku-card-media { position: relative; aspect-ratio: 4 / 3; background: #f1f3f6; overflow: hidden; }
.ku-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.ku-card:hover .ku-card-media img { transform: scale(1.04); }
.ku-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 2;
    padding: 2px 9px;
    border-radius: 4px;
    color: #fff;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: .3px;
}
.ku-play { position: absolute; right: 10px; bottom: 10px; z-index: 2; display: flex; }
.ku-card-body { padding: 13px 15px 15px; display: flex; flex-direction: column; flex: 1; }
.ku-card-cat { font-size: 11.5px; font-weight: 500; letter-spacing: .2px; }
.ku-card-title {
    margin-top: 5px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.ku-card-model { margin-top: 5px; color: var(--pc-text-3); font-size: 12px; }
.ku-card-specs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 11px; }
/* 卡片内「订购咨询」橙色按钮 */
.ku-card-actions { position: relative; z-index: 2; margin-top: 11px; }
.ku-card-order {
    width: 100%;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    line-height: 1.2;
}
.ku-card-order svg { flex: 0 0 auto; }
.ku-spec {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    max-width: 100%;
    padding: 2px 7px;
    border-radius: 4px;
    background: #f5f6f8;
    color: var(--pc-text-2);
    font-size: 11px;
    overflow: hidden;
    white-space: nowrap;
}
.ku-spec em { color: var(--pc-text-3); font-style: normal; }

/* ------------------------------ 视频卡 ------------------------------ */
.ku-vgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.ku-vcard {
    display: block;
    background: var(--pc-card);
    border-radius: var(--pc-radius);
    box-shadow: var(--pc-shadow);
    overflow: hidden;
    transition: transform .18s, box-shadow .18s;
}
.ku-vcard:hover { transform: translateY(-3px); box-shadow: 0 12px 26px rgba(23, 30, 45, .1); }
.ku-vcard-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: #e9ecf1; }
.ku-vcard-media img { width: 100%; height: 100%; object-fit: cover; }
.ku-vcard-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(12, 16, 22, .05), rgba(12, 16, 22, .45));
}
.ku-vcard-play {
    position: absolute;
    left: 12px;
    bottom: 12px;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px 4px 6px;
    border-radius: 14px;
    background: rgba(12, 16, 22, .55);
    color: #fff;
    font-size: 11.5px;
    backdrop-filter: blur(4px);
}
.ku-vcard-body { padding: 12px 14px 14px; }
.ku-vcard-body strong {
    display: block;
    font-size: 14px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.ku-vcard-body em { display: block; margin-top: 4px; color: var(--pc-text-3); font-size: 11.5px; font-style: normal; }

/* ------------------------------ 分类页头部 ------------------------------ */
.ku-cathead {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 30px 34px;
    margin-bottom: 20px;
    border-radius: 18px;
    color: #fff;
    overflow: hidden;
    background: var(--ku-c, #e14a44);
    background: linear-gradient(118deg, var(--ku-c, #e14a44), color-mix(in srgb, var(--ku-c, #e14a44) 58%, #10151d));
}
.ku-cathead::after {
    content: "";
    position: absolute;
    right: -60px;
    top: -90px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .1);
}
.ku-cathead .ku-kicker { color: rgba(255, 255, 255, .72); }
.ku-cathead h1 { margin-top: 6px; font-size: 30px; letter-spacing: 1px; }
.ku-cathead p { margin-top: 8px; max-width: 620px; color: rgba(255, 255, 255, .86); font-size: 13.5px; line-height: 1.7; }
.ku-cathead-stat { display: flex; align-items: center; gap: 12px; position: relative; z-index: 1; }
.ku-cathead-stat b { font-size: 30px; font-weight: 600; }
.ku-cathead-stat em { font-size: 12px; font-style: normal; color: rgba(255, 255, 255, .78); }
.ku-cathead-stat span { width: 1px; height: 30px; background: rgba(255, 255, 255, .3); margin: 0 4px; }

.ku-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 20px; align-items: start; }
.ku-listbar {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding: 2px 2px 14px;
}
.ku-listbar h2 { font-size: 17px; font-weight: 600; }
.ku-listbar span { color: var(--pc-text-3); font-size: 12.5px; }

/* ------------------------------ 侧栏目录 ------------------------------ */
.ku-side { display: flex; flex-direction: column; gap: 16px; position: sticky; top: 86px; }
.ku-tree { margin: 2px -8px 0; }
.ku-tree-cat { padding: 1px 0; }
.ku-tree-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 8px;
    border-radius: 7px;
    color: var(--pc-text-2);
    font-size: 14px;
}
.ku-tree-link:hover { background: #f5f6f8; color: var(--pc-text); }
.ku-tree-link i { width: 7px; height: 7px; border-radius: 50%; flex: 0 0 auto; }
.ku-tree-link span { margin-left: auto; color: var(--pc-text-3); font-size: 12px; }
.ku-tree-link.is-active { background: var(--pc-brand-soft); color: var(--pc-brand); font-weight: 500; }
.ku-tree-sub { margin: 1px 0 6px; }
.ku-tree-sub a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-left: 22px;
    padding: 5px 8px;
    border-left: 1px solid var(--pc-line);
    color: var(--pc-text-2);
    font-size: 13px;
}
.ku-tree-sub a:hover { color: var(--pc-text); background: #f7f8fa; }
.ku-tree-sub a.is-active { color: var(--pc-brand); font-weight: 500; border-left-color: var(--pc-brand); }
.ku-tree-sub a span { color: var(--pc-text-3); font-size: 11.5px; }
.ku-side-tip p { color: var(--pc-text-2); font-size: 12.5px; line-height: 1.7; margin-bottom: 8px; }
.ku-side-tip-em { color: var(--pc-text-3) !important; font-size: 12px !important; }

/* ------------------------------ 详情页 ------------------------------ */
.ku-detail {
    display: grid;
    grid-template-columns: 520px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
}
.ku-gallery { padding: 14px; }
.ku-gallery-main {
    position: relative;
    aspect-ratio: 4 / 3;
    border-radius: 10px;
    overflow: hidden;
    background: #f1f3f6;
    cursor: zoom-in;
}
.ku-gallery-main img { width: 100%; height: 100%; object-fit: cover; }
/* 大图左右切换箭头 */
.ku-nav {
    position: absolute;
    top: 50%;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .88);
    color: #2b3240;
    box-shadow: 0 2px 10px rgba(16, 24, 40, .2);
    opacity: 0;
    cursor: pointer;
    transition: opacity .18s, background .18s, transform .18s;
    transform: translateY(-50%);
}
.ku-gallery-main:hover .ku-nav,
.ku-nav:focus-visible { opacity: 1; }
.ku-nav:hover { background: #fff; box-shadow: 0 4px 14px rgba(16, 24, 40, .26); }
.ku-nav-prev { left: 10px; }
.ku-nav-next { right: 10px; }
.ku-nav-prev:hover { transform: translateY(-50%) translateX(-2px); }
.ku-nav-next:hover { transform: translateY(-50%) translateX(2px); }
.ku-nav svg { pointer-events: none; }
.ku-gallery-idx {
    position: absolute;
    right: 10px;
    bottom: 10px;
    z-index: 2;
    padding: 2px 9px;
    border-radius: 20px;
    background: rgba(12, 16, 22, .55);
    color: #fff;
    font-size: 11.5px;
    line-height: 1.7;
    letter-spacing: .4px;
    font-variant-numeric: tabular-nums;
    pointer-events: none;
}
.ku-gallery-idx b { font-weight: 600; }
.ku-gallery-idx i { margin: 0 2px; font-style: normal; opacity: .6; }
.ku-gallery-thumbs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 10px; }
.ku-thumb {
    padding: 0;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid transparent;
    background: #f1f3f6;
    aspect-ratio: 4 / 3;
    transition: border-color .15s;
}
.ku-thumb img { width: 100%; height: 100%; object-fit: cover; }
.ku-thumb.is-on { border-color: var(--pc-brand); }
.ku-gallery-tip { margin-top: 10px; color: var(--pc-text-3); font-size: 11.5px; text-align: center; }

.ku-info { padding: 6px 2px; }
.ku-info-top { display: flex; align-items: center; gap: 10px; }
.ku-info-cat { font-size: 12.5px; font-weight: 600; letter-spacing: .3px; }
.ku-info-badge { padding: 2px 8px; border-radius: 4px; color: #fff; font-size: 11px; }
.ku-info h1 { margin-top: 10px; font-size: 28px; line-height: 1.35; letter-spacing: .2px; }
.ku-info-summary { margin-top: 12px; color: var(--pc-text-2); font-size: 14.5px; line-height: 1.8; }
.ku-info-meta { display: flex; flex-wrap: wrap; gap: 20px 34px; margin-top: 20px; padding: 16px 18px; border-radius: 12px; background: #f9fafb; }
.ku-info-meta dt { color: var(--pc-text-3); font-size: 11.5px; }
.ku-info-meta dd { margin-top: 3px; font-size: 14px; font-weight: 500; }
.ku-apps { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.ku-app { padding: 4px 11px; border-radius: 5px; background: #fff1f1; color: var(--pc-brand-dark); font-size: 12.5px; }
.ku-info-actions { display: flex; gap: 10px; margin-top: 24px; }

.ku-detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 20px;
    align-items: start;
    margin-top: 22px;
}
.ku-main { display: flex; flex-direction: column; gap: 18px; }
.ku-panel { padding: 20px 24px 22px; }
.ku-panel-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    padding-bottom: 12px;
    margin-bottom: 6px;
    border-bottom: 1px solid var(--pc-line);
}
.ku-panel-head h2 { font-size: 17px; font-weight: 600; }
.ku-panel-head span { color: var(--pc-text-3); font-size: 12px; }

.ku-params { width: 100%; border-collapse: collapse; }
.ku-params th, .ku-params td { padding: 10px 4px; border-bottom: 1px dashed #eceef1; font-size: 14px; text-align: left; vertical-align: top; }
.ku-params th { width: 132px; color: var(--pc-text-3); font-weight: 400; }
.ku-params td { color: var(--pc-text); }
.ku-params tr:last-child th, .ku-params tr:last-child td { border-bottom: 0; }

.ku-highlights { padding: 10px 0 2px; }
.ku-highlights li {
    position: relative;
    padding-left: 24px;
    margin: 9px 0;
    color: #343a43;
    font-size: 14.5px;
    line-height: 1.65;
}
.ku-highlights li::before {
    content: "";
    position: absolute;
    left: 4px;
    top: 8px;
    width: 8px;
    height: 8px;
    border-radius: 2px;
    background: var(--pc-brand);
    opacity: .8;
}
.ku-video {
    /* 统一 9:16 竖屏播放器：容器比例固定、限高居中；
       横屏与竖屏视频都按 contain 显示，不变形、不裁切、不撑长页面 */
    position: relative;
    width: min(100%, calc((100vh - 230px) * 9 / 16));
    margin: 8px auto 4px;
    aspect-ratio: 9 / 16;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 12px;
    background: #000;
}
.ku-video video {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #000;
}

/* 详情页操作区：蓝色「播放产品视频」按钮 */
.btn-blue {
    background: linear-gradient(135deg, #3d80ff, #2b6cf6);
    color: #fff;
    box-shadow: 0 6px 16px rgba(43, 108, 246, .24);
}
.btn-blue:hover {
    background: linear-gradient(135deg, #2f74f5, #1f5ee8);
    box-shadow: 0 8px 20px rgba(43, 108, 246, .32);
    color: #fff;
}
.btn-blue:active { transform: translateY(1px); }

/* 详情页操作区：绿色「同类产品」按钮 */
.btn-green {
    background: linear-gradient(135deg, #16b364, #07a352);
    color: #fff;
    box-shadow: 0 6px 16px rgba(7, 163, 82, .22);
}
.btn-green:hover {
    background: linear-gradient(135deg, #12a55b, #068f48);
    box-shadow: 0 8px 20px rgba(7, 163, 82, .3);
    color: #fff;
}
.btn-green:active { transform: translateY(1px); }
.ku-related { margin-top: 30px; }

/* ------------------------------ 灯箱 ------------------------------ */
.ku-lightbox {
    position: fixed;
    inset: 0;
    z-index: 999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 0;
    overflow: hidden;
    background: rgba(12, 16, 22, .9);
    backdrop-filter: blur(6px);
}
.ku-lightbox.is-open { display: flex; }
.ku-lb-stage {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.ku-lb-stage img {
    max-width: 92%;
    max-height: 84%;
    border-radius: 8px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, .45);
    transform-origin: center center;
    cursor: zoom-in;
    user-select: none;
    -webkit-user-select: none;
    -webkit-user-drag: none;
    touch-action: none;
    will-change: transform;
}
.ku-lb-stage img.is-zoomed { cursor: grab; }
.ku-lb-stage img.is-dragging { cursor: grabbing; }
/* 灯箱工具条 */
.ku-lb-bar {
    position: absolute;
    top: 18px;
    right: 18px;
    z-index: 4;
    display: flex;
    align-items: center;
    gap: 8px;
}
.ku-lb-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 38px;
    min-width: 38px;
    padding: 0 12px;
    border-radius: 20px;
    background: rgba(255, 255, 255, .14);
    color: #fff;
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    transition: background .15s, color .15s;
}
.ku-lb-btn:hover { background: rgba(255, 255, 255, .28); }
.ku-lb-scale {
    min-width: 52px;
    text-align: center;
    color: rgba(255, 255, 255, .74);
    font-size: 12.5px;
    font-variant-numeric: tabular-nums;
}
.ku-lb-close { font-size: 22px; }
.ku-lb-nav {
    position: absolute;
    top: 50%;
    z-index: 4;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .12);
    color: #fff;
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
    transform: translateY(-50%);
    transition: background .15s;
}
.ku-lb-nav:hover { background: rgba(255, 255, 255, .28); }
.ku-lb-prev { left: 20px; }
.ku-lb-next { right: 20px; }
.ku-lb-hint {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 16px;
    z-index: 4;
    text-align: center;
    color: rgba(255, 255, 255, .5);
    font-size: 12px;
    pointer-events: none;
}

/* ------------------------------ 响应式 ------------------------------ */
@media (max-width: 1180px) {
    .ku-hero { grid-template-columns: minmax(0, 1fr) 330px; padding: 34px 30px; }
    .ku-hero-card { width: 230px; }
    .ku-hero-card img { height: 146px; }
    .ku-detail { grid-template-columns: 440px minmax(0, 1fr); }
}

@media (max-width: 1080px) {
    .ku-cat-grid { grid-template-columns: repeat(2, 1fr); }
    .ku-grid, .ku-vgrid { grid-template-columns: repeat(3, 1fr); }
    .ku-layout, .ku-detail-grid { grid-template-columns: minmax(0, 1fr) 260px; }
    .ku-detail { grid-template-columns: 380px minmax(0, 1fr); }
    .ku-info h1 { font-size: 24px; }
}

@media (max-width: 900px) {
    .ku-hero { grid-template-columns: 1fr; padding: 28px 24px; }
    .ku-hero-visual { display: none; }
    .ku-hero h1 { font-size: 30px; }
    .ku-grid, .ku-vgrid { grid-template-columns: repeat(2, 1fr); }
    .ku-grid-3 { grid-template-columns: repeat(2, 1fr); }
    .ku-layout, .ku-detail-grid { grid-template-columns: 1fr; }
    .ku-side { position: static; }
    .ku-detail { grid-template-columns: 1fr; }
    .ku-cathead { flex-direction: column; align-items: flex-start; padding: 24px 22px; }
    .ku-subrow { flex-direction: column; gap: 10px; }
    .ku-subrow-cat { flex: none; }
}

@media (max-width: 560px) {
    .ku-hero { padding: 24px 20px; border-radius: 16px; }
    .ku-hero h1 { font-size: 26px; }
    .ku-hero-stats { gap: 20px; }
    .ku-hero-stats b { font-size: 20px; }
    .ku-cat-grid { grid-template-columns: 1fr; }
    .ku-grid, .ku-grid-3, .ku-vgrid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .ku-card-body { padding: 10px 12px 12px; }
    .ku-card-title { font-size: 13.5px; }
    .ku-card-cat { font-size: 10.5px; }
    .ku-card-model { font-size: 11px; }
    .ku-card-specs { display: none; }
    .ku-section-head h2 { font-size: 18px; }
    .ku-info h1 { font-size: 21px; }
    .ku-info-actions { flex-direction: column; }
    .ku-panel { padding: 16px 16px 18px; }
    .ku-params th { width: 96px; font-size: 13px; }
    .ku-params td { font-size: 13px; }
    .ku-lightbox { padding: 0; }
    .ku-lb-stage img { max-width: 96%; max-height: 76%; }
    .ku-lb-bar { top: 12px; right: 12px; gap: 6px; }
    .ku-lb-btn { height: 34px; min-width: 34px; padding: 0 10px; font-size: 15px; }
    .ku-lb-nav { width: 38px; height: 38px; font-size: 22px; }
    .ku-lb-prev { left: 8px; }
    .ku-lb-next { right: 8px; }
    .ku-lb-hint { font-size: 11px; bottom: 12px; }
    .ku-nav { opacity: .96; width: 34px; height: 34px; }
    .ku-nav-prev { left: 6px; }
    .ku-nav-next { right: 6px; }
}

/* ------------------------------ 详细说明（富文本） ------------------------------ */
.ku-content {
    padding: 14px 0 4px;
    font-size: 14.5px;
    line-height: 1.9;
    color: var(--pc-text-1, #2b3240);
    word-break: break-word;
}
.ku-content p { margin: 0 0 12px; }
.ku-content h2, .ku-content h3, .ku-content h4 {
    margin: 20px 0 10px;
    font-size: 16.5px;
    line-height: 1.5;
    color: var(--pc-text-1, #1f2633);
}
.ku-content h2 { font-size: 17.5px; }
.ku-content ul, .ku-content ol { margin: 0 0 12px; padding-left: 24px; }
.ku-content li { margin: 5px 0; }
.ku-content img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    border: 1px solid var(--pc-line, #eceff3);
    margin: 6px 0;
}
.ku-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 14px;
    font-size: 13.5px;
}
.ku-content th, .ku-content td {
    border: 1px solid var(--pc-line, #e4e7ec);
    padding: 8px 12px;
    text-align: left;
}
.ku-content th { background: #f7f8fa; font-weight: 600; }
.ku-content a { color: var(--pc-brand, #e14a44); }
.ku-content blockquote {
    margin: 0 0 12px;
    padding: 10px 14px;
    border-left: 3px solid var(--pc-brand, #e14a44);
    background: #faf7f7;
    border-radius: 0 8px 8px 0;
    color: var(--pc-text-2, #5b6472);
}
.ku-content video { max-width: 100%; border-radius: 10px; }

/* ------------------------------ 产品视频：面板整体纯黑（PC / 平板 / 手机统一） ------------------------------ */
.ku-video-panel {
    padding: 0;
    overflow: hidden;
    background: #000;
    border-color: #000;
}
.ku-video-panel .ku-panel-head {
    margin: 0;
    padding: 15px 24px 12px;
    border-bottom: 0;
}
.ku-video-panel .ku-panel-head h2 { color: #fff; }
.ku-video-panel .ku-panel-head span { color: rgba(255, 255, 255, .55); }

/* 平板 / 手机：播放器满宽（9:16，限高一屏）；PC 保持原宽度居中不变 */
@media (max-width: 1024px) {
    .ku-video-panel .ku-panel-head { padding: 14px 16px 10px; }
    .ku-video {
        width: 100%;
        max-width: none;
        max-height: calc(100vh - 120px);
        margin: 0;
        border-radius: 0;
    }
}

/* ==========================================================================
   「刮刀」(guadao) 版块绿色色调：body.ku-green 重定义品牌变量，
   顶栏按钮 / 链接 / 徽章 / 选中态随变量自动变绿，无需逐条覆盖
   ========================================================================== */
body.ku-green {
    --pc-brand: #2e9e5b;
    --pc-brand-dark: #23824a;
    --pc-brand-soft: #e9f6ee;
}
body.ku-green .ku-app { background: #e9f6ee; }
body.ku-green .btn-fav.is-on { background: #e9f6ee; color: #2e9e5b; border-color: #bfe5cd; }
body.ku-green .ku-side-tip-em { color: #2e9e5b; }

/* ==========================================================================
   订购咨询（产品详情页按钮 / 独立表单页 /ku-order.php）
   ========================================================================== */
/* 详情页操作区：橙色「订购咨询」按钮（较「同类产品」更突出，flex 可换行） */
.ku-info-actions { flex-wrap: wrap; }
.btn-order {
    background: linear-gradient(135deg, #ff8a3d, #f4472f);
    color: #fff;
    box-shadow: 0 6px 16px rgba(244, 71, 47, .26);
}
.btn-order:hover {
    background: linear-gradient(135deg, #fb7c2c, #e93b23);
    box-shadow: 0 8px 20px rgba(244, 71, 47, .34);
    color: #fff;
}
.btn-order:active { transform: translateY(1px); }

/* 详情页底部 CTA 条 */
.ku-order-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-top: 18px;
    padding: 20px 24px;
    background: linear-gradient(120deg, #fff6f1, #fff);
    border: 1px solid #ffe2d3;
}
.ku-order-cta h2 { margin: 0 0 6px; font-size: 16.5px; color: var(--pc-text-1, #2b3240); }
.ku-order-cta p { margin: 0; font-size: 13.5px; color: var(--pc-text-2, #6b7280); }
.ku-order-cta .btn-order { flex: 0 0 auto; }

/* 表单页布局 */
.ku-order-wrap {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 20px;
    align-items: start;
    margin-top: 4px;
}
.ku-order-card { padding: 0; overflow: hidden; }
.ku-order-product {
    display: flex;
    gap: 18px;
    padding: 22px 24px;
    border-bottom: 1px solid #eef0f4;
    background: linear-gradient(120deg, #fbfcfe, #fff);
}
.ku-order-product img {
    flex: 0 0 128px;
    width: 128px;
    height: 128px;
    border-radius: 14px;
    object-fit: cover;
    background: #f4f6f9;
    border: 1px solid #eef0f4;
}
.ku-order-product-main { min-width: 0; }
.ku-order-cat { display: inline-block; font-size: 12.5px; font-weight: 700; letter-spacing: .3px; }
.ku-order-product h1 { margin: 6px 0 6px; font-size: 21px; line-height: 1.35; color: var(--pc-text-1, #2b3240); }
.ku-order-meta { margin: 0 0 6px; font-size: 13px; color: var(--pc-text-2, #6b7280); }
.ku-order-sum { margin: 0 0 10px; font-size: 13.5px; line-height: 1.7; color: var(--pc-text-2, #6b7280); }
.ku-order-back { font-size: 13px; font-weight: 600; color: var(--pc-brand, #ff5a5f); text-decoration: none; }
.ku-order-back:hover { text-decoration: underline; }

/* 表单 */
.ku-order-form { display: grid; gap: 16px; padding: 22px 24px 26px; }
.ku-order-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.ku-order-field label {
    display: block;
    margin-bottom: 7px;
    font-size: 13px;
    font-weight: 600;
    color: var(--pc-text-1, #2b3240);
}
.ku-order-field label em { font-style: normal; color: #f4472f; }
.ku-order-field input,
.ku-order-field textarea {
    width: 100%;
    padding: 11px 13px;
    font-size: 14px;
    font-family: inherit;
    color: var(--pc-text-1, #2b3240);
    background: #fff;
    border: 1px solid #dfe3ea;
    border-radius: 10px;
    transition: border-color .15s ease, box-shadow .15s ease;
    box-sizing: border-box;
}
.ku-order-field input:focus,
.ku-order-field textarea:focus {
    outline: none;
    border-color: #ff9b6a;
    box-shadow: 0 0 0 3px rgba(255, 138, 61, .14);
}
.ku-order-field textarea { min-height: 96px; resize: vertical; line-height: 1.7; }
.ku-order-hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.ku-order-errors {
    padding: 11px 14px;
    font-size: 13.5px;
    line-height: 1.7;
    color: #c0392b;
    background: #fff1f0;
    border: 1px solid #ffd6d3;
    border-radius: 10px;
}
.ku-order-actions { display: grid; gap: 10px; }
.ku-order-submit { width: 100%; height: 46px; font-size: 15px; font-weight: 600; border: 0; border-radius: 12px; cursor: pointer; }
.ku-order-privacy { margin: 0; font-size: 12.5px; line-height: 1.7; color: var(--pc-text-2, #8a93a4); text-align: center; }

/* 侧栏说明 */
.ku-order-aside { display: flex; flex-direction: column; gap: 16px; }
.ku-order-tip { padding: 20px 22px; }
.ku-order-tip h3 { margin: 0 0 12px; font-size: 15px; color: var(--pc-text-1, #2b3240); }
.ku-order-tip ol,
.ku-order-tip ul { margin: 0; padding-left: 18px; font-size: 13.5px; line-height: 1.95; color: var(--pc-text-2, #6b7280); }
.ku-order-tip-note { margin: 10px 0 0; font-size: 12.5px; line-height: 1.75; color: #8a93a4; }
.ku-order-tip-link { display: inline-block; margin-top: 8px; font-size: 13px; font-weight: 600; color: var(--pc-brand, #ff5a5f); text-decoration: none; }
.ku-order-tip-link:hover { text-decoration: underline; }

/* 成功态 / 提示页 */
.ku-order-done { padding: 38px 24px 42px; text-align: center; }
.ku-order-ok {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 58px;
    height: 58px;
    margin-bottom: 14px;
    color: #fff;
    border-radius: 50%;
    background: linear-gradient(135deg, #31c46f, #12a55b);
    box-shadow: 0 8px 20px rgba(18, 165, 91, .26);
}
.ku-order-done h2 { margin: 0 0 10px; font-size: 20px; color: var(--pc-text-1, #2b3240); }
.ku-order-done p { margin: 0 0 6px; font-size: 14px; line-height: 1.9; color: var(--pc-text-2, #6b7280); }
.ku-order-no { font-size: 13px; color: #8a93a4; }
.ku-order-done-btns { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 20px; }
.ku-order-empty { grid-template-columns: minmax(0, 720px); justify-content: center; }
.ku-order-notice { padding: 44px 28px 48px; text-align: center; }
.ku-order-notice h1 { margin: 0 0 12px; font-size: 21px; color: var(--pc-text-1, #2b3240); }
.ku-order-notice p { margin: 0; font-size: 14px; line-height: 1.9; color: var(--pc-text-2, #6b7280); }

@media (max-width: 900px) {
    .ku-order-wrap { grid-template-columns: minmax(0, 1fr); }
    .ku-order-cta { flex-direction: column; align-items: flex-start; }
    .ku-order-row { grid-template-columns: minmax(0, 1fr); }
    .ku-order-product { padding: 18px 16px; gap: 14px; }
    .ku-order-product img { flex: 0 0 92px; width: 92px; height: 92px; border-radius: 12px; }
    .ku-order-product h1 { font-size: 17.5px; }
    .ku-order-form { padding: 18px 16px 22px; }
    .ku-order-tip { padding: 16px 16px 18px; }
}