/* =============================================================
   Home Banners — 首页 Hero 轮播

   断点：手机 ≤767px · 平板 768–1023px · 桌面 ≥1024px

   【文案布局】
   · 手机：水平 + 垂直居中（经典移动端 Hero）
   · 平板 / 桌面：左对齐 + 垂直居中（B2B 经典 Hero）
============================================================= */

/* ── 区块容器 ──────────────────────────────────────────────── */
.home-banners {
    position: relative;
    overflow: hidden;
    background: var(--color-bg-alt);
    margin: 0;
    padding: 0;
    min-height: var(--hero-height-mobile);
}

.home-banners-track {
    position: relative;
    min-height: var(--hero-height-mobile);
    touch-action: pan-y pinch-zoom;
}

/* ── 幻灯片（叠层；转场时 incoming / leaving 同屏）──────────────── */
.home-banner-slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    z-index: 0;
    /* 公共遮罩浓度（components/_section_overlay → .nd-section__overlay） */
    --section-overlay: rgba(0, 0, 0, 0.4);
}

.home-banner-slide.is-active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    z-index: 1;
}

/* 转场进行中：离场 / 入场幻灯片保持可见 */
.home-banners-track.is-animating .home-banner-slide.is-entering,
.home-banners-track.is-animating .home-banner-slide.is-leaving {
    opacity: 1;
    visibility: visible;
    pointer-events: none;
}

.home-banners-track.is-animating .home-banner-slide.is-entering {
    z-index: 2;
}

.home-banners-track.is-animating .home-banner-slide.is-leaving {
    z-index: 1;
}

/*
 * 文案 / 按钮与图片转场同步：
 * · 离场：立刻淡出文案与遮罩，避免旧字残留在新图上（尤其 marble-vein 只 mask 背景时）
 * · 入场：文案随入场进度淡入，与图片动画对齐
 */
.home-banners-track.is-animating .home-banner-slide.is-leaving .home-banner-inner,
.home-banners-track.is-animating .home-banner-slide.is-leaving .nd-section__overlay {
    opacity: 0;
    transition: opacity 0.28s ease;
    pointer-events: none;
}

.home-banners-track.is-animating .home-banner-slide.is-entering .home-banner-inner {
    opacity: 0;
}

.home-banners-track.is-animating .home-banner-slide.is-entering.is-entering-active .home-banner-inner {
    opacity: 1;
    transition: opacity 0.65s ease 0.2s;
}

/* marble-vein 仅动画背景 mask，文案单独加长淡入以贴合 1.5s 渗开 */
.home-banners-track.is-animating .home-banner-slide.banner-trans--marble-vein.is-entering.is-entering-active .home-banner-inner,
.home-banners-track.is-animating .home-banner-slide.banner-trans--marble-vein-reverse.is-entering.is-entering-active .home-banner-inner {
    transition: opacity 0.9s ease 0.35s;
}

/* ── 背景图（img 清晰渲染 · 对齐 home_trade_program）──────── */
.home-banner-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    background: linear-gradient(160deg, #1a2f34 0%, #2a4a50 42%, #205058 100%);
}

.home-banner__bg-media {
    position: absolute;
    inset: 0;
    display: block;
    margin: 0;
    padding: 0;
}

.home-banner__bg-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* ── 文案区（Pad / Desktop 默认：左对齐 + 垂直居中）────────── */
.home-banner-inner {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 640px;
    padding: 0 0 88px;
}

.home-banner-eyebrow {
    display: inline-block;
    margin: 0 0 14px;
    padding: 6px 14px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent-light);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(196, 182, 164, 0.4);
    border-radius: 999px;
}

.home-banner-title {
    margin: 0 0 16px;
    font-family: var(--font-serif);
    font-size: clamp(28px, 5vw, 48px);
    font-weight: 700;
    line-height: 1.15;
    color: #fff;
    letter-spacing: -0.02em;
}

.home-banner-subtitle {
    margin: 0 0 24px;
    font-size: 17px;
    line-height: 1.65;
    color: rgba(255, 255, 255, 0.88);
}

.home-banner-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

/* ── 手机 ≤767px：居中 Hero ───────────────────────────────── */
@media (max-width: 767px) {
    .home-banner-slide,
    .home-banner-slide.is-active {
        align-items: center;
        justify-content: center;
        text-align: center;
    }

    .home-banner-inner {
        max-width: min(340px, 100%);
        padding: 0 8px 76px;
    }

    .home-banner-eyebrow {
        margin-bottom: 8px;
        padding: 4px 10px;
        font-size: 9px;
        letter-spacing: 0.1em;
    }

    .home-banner-title {
        margin-bottom: 8px;
        font-size: clamp(22px, 6.2vw, 26px);
        line-height: 1.2;
    }

    .home-banner-subtitle {
        margin-bottom: 16px;
        font-size: 13px;
        line-height: 1.45;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .home-banner-actions {
        flex-wrap: nowrap;
        justify-content: center;
        gap: 8px;
        max-width: 300px;
        margin: 0 auto;
    }

    .home-banner-actions .btn {
        flex: 1 1 0;
        min-width: 0;
        padding: 9px 10px;
        font-size: 12px;
        border-radius: 6px;
    }

    .home-banner-actions .btn-light {
        background: rgba(255, 255, 255, 0.92);
    }
}

/* ── 平板 768–1023px：左对齐 Hero ─────────────────────────── */
@media (min-width: 768px) and (max-width: 1023px) {
    .home-banners,
    .home-banners-track {
        min-height: var(--hero-height-tablet);
    }

    .home-banner-inner {
        max-width: 520px;
        padding-bottom: 92px;
    }

    .home-banner-title {
        font-size: clamp(30px, 4.5vw, 40px);
    }

    .home-banner-subtitle {
        font-size: 16px;
        max-width: 480px;
    }
}

/* ── 桌面 ≥1024px ─────────────────────────────────────────── */
@media (min-width: 1024px) {
    .home-banners {
        margin-top: var(--header-topbar-height);
        min-height: var(--hero-height-desktop);
    }

    .home-banners-track {
        min-height: var(--hero-height-desktop);
    }

    .home-banner-inner {
        padding-bottom: 108px;
    }

    .home-banner-title {
        font-size: clamp(36px, 4vw, 48px);
    }
}

/* ── 手动切换：左右箭头（无自动轮播）─────────────────────── */
.home-banners-nav {
    position: absolute;
    inset: 0 0 auto;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 clamp(12px, 2vw, 28px);
    pointer-events: none;
}

.home-banner-nav {
    pointer-events: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 50%;
    background: rgba(20, 16, 12, 0.28);
    color: rgba(255, 255, 255, 0.92);
    cursor: pointer;
    backdrop-filter: blur(6px);
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.home-banner-nav:hover {
    background: rgba(20, 16, 12, 0.48);
    border-color: rgba(255, 255, 255, 0.55);
}

.home-banner-nav:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.7);
    outline-offset: 2px;
}

/* ── 轮播指示点 + Scroll 图标 ─────────────────────────────── */
.home-banners-dots {
    position: absolute;
    bottom: 52px;
    left: 50%;
    z-index: 3;
    display: flex;
    gap: 8px;
    transform: translateX(-50%);
}

.home-banner-dot {
    width: 7px;
    height: 7px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: background var(--transition), width var(--transition);
}

.home-banner-dot.is-active {
    width: 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.92);
}

.home-banner-scroll-hint {
    position: absolute;
    bottom: 12px;
    left: 50%;
    z-index: 4;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.88);
    text-decoration: none;
    transform: translateX(-50%);
    transition: color 0.25s ease;
}

.home-banner-scroll-hint:hover {
    color: #fff;
}

.home-banner-scroll-hint:hover .home-banner-scroll-icon {
    border-color: rgba(255, 255, 255, 0.65);
    background: rgba(255, 255, 255, 0.08);
}

.home-banner-scroll-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 50%;
    animation: banner-scroll-bounce 2.4s ease-in-out infinite;
}

.home-banner-scroll-icon svg {
    width: 16px;
    height: 16px;
}

@keyframes banner-scroll-bounce {
    0%, 100% {
        transform: translateY(0);
        opacity: 0.85;
    }
    50% {
        transform: translateY(4px);
        opacity: 1;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .home-banners-dots {
        bottom: 56px;
    }
}

@media (min-width: 1024px) {
    .home-banners-dots {
        bottom: 60px;
    }

    .home-banner-scroll-hint {
        bottom: 14px;
    }

    .home-banner-scroll-icon {
        width: 30px;
        height: 30px;
    }

    .home-banner-scroll-icon svg {
        width: 18px;
        height: 18px;
    }
}

@media (max-width: 767px) {
    .home-banners-dots {
        bottom: 50px;
    }

    .home-banner-scroll-hint {
        bottom: 10px;
    }

    .home-banner-scroll-icon {
        width: 26px;
        height: 26px;
    }
}

/* =============================================================
   Banner 转场动画 — §16.19 · Tableware 主题
   · plate-sweep     餐盘推幕（右→左擦除）     1.2s
   · marble-vein     大理石纹路渗开           1.5s
   · charger-reveal  圆盘落位展开             1.2s
   · stack-rise      叠盘升起                 1.1s
   · fade            reduced-motion 降级      0.6s
   时长与 main.js HomeBannerSlider.TRANSITION_MS 同步
============================================================= */

.home-banner-slide.is-entering,
.home-banner-slide.is-leaving {
    will-change: clip-path, transform, opacity;
}

/* ── 1. Plate Sweep 餐盘推幕 ─────────────────────────────── */
.home-banner-slide.banner-trans--plate-sweep.is-entering {
    clip-path: inset(0 0 0 100%);
}

.home-banner-slide.banner-trans--plate-sweep.is-entering.is-entering-active {
    clip-path: inset(0 0 0 0);
    transition: clip-path 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.home-banner-slide.banner-trans--plate-sweep-reverse.is-entering {
    clip-path: inset(0 100% 0 0);
}

.home-banner-slide.banner-trans--plate-sweep-reverse.is-entering.is-entering-active {
    clip-path: inset(0 0 0 0);
    transition: clip-path 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── 2. Marble Vein 纹路渗开 ─────────────────────────────── */
.home-banner-slide.banner-trans--marble-vein.is-entering .home-banner-bg,
.home-banner-slide.banner-trans--marble-vein-reverse.is-entering .home-banner-bg {
    -webkit-mask-image: linear-gradient(115deg, #000 42%, transparent 58%);
    mask-image: linear-gradient(115deg, #000 42%, transparent 58%);
    -webkit-mask-size: 280% 100%;
    mask-size: 280% 100%;
    -webkit-mask-position: 100% 0;
    mask-position: 100% 0;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
}

.home-banner-slide.banner-trans--marble-vein.is-entering.is-entering-active .home-banner-bg {
    -webkit-mask-position: 0 0;
    mask-position: 0 0;
    transition: -webkit-mask-position 1.5s cubic-bezier(0.33, 1, 0.68, 1),
                mask-position 1.5s cubic-bezier(0.33, 1, 0.68, 1);
}

.home-banner-slide.banner-trans--marble-vein-reverse.is-entering .home-banner-bg {
    -webkit-mask-position: -100% 0;
    mask-position: -100% 0;
}

.home-banner-slide.banner-trans--marble-vein-reverse.is-entering.is-entering-active .home-banner-bg {
    -webkit-mask-position: 0 0;
    mask-position: 0 0;
    transition: -webkit-mask-position 1.5s cubic-bezier(0.33, 1, 0.68, 1),
                mask-position 1.5s cubic-bezier(0.33, 1, 0.68, 1);
}

/* ── 3. Charger Reveal 圆盘落位 ─────────────────────────── */
.home-banner-slide.banner-trans--charger-reveal.is-entering {
    clip-path: circle(0% at 50% 55%);
}

.home-banner-slide.banner-trans--charger-reveal.is-entering.is-entering-active {
    clip-path: circle(150% at 50% 55%);
    transition: clip-path 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.home-banner-slide.banner-trans--charger-reveal-reverse.is-entering {
    clip-path: circle(0% at 50% 55%);
}

.home-banner-slide.banner-trans--charger-reveal-reverse.is-entering.is-entering-active {
    clip-path: circle(150% at 50% 55%);
    transition: clip-path 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── 5. Stack Rise 叠盘升起 ─────────────────────────────── */
.home-banner-slide.banner-trans--stack-rise.is-entering {
    transform: translateY(8%);
    opacity: 0;
}

.home-banner-slide.banner-trans--stack-rise.is-entering.is-entering-active {
    transform: translateY(0);
    opacity: 1;
    transition: transform 1.1s cubic-bezier(0.22, 1, 0.36, 1),
                opacity 1.1s ease;
}

.home-banner-slide.banner-trans-out--stack-rise.is-leaving.is-leaving-active {
    transform: scale(1.04);
    opacity: 0;
    transition: transform 1.1s ease, opacity 1.1s ease;
}

.home-banner-slide.banner-trans--stack-rise-reverse.is-entering {
    transform: translateY(-6%);
    opacity: 0;
}

.home-banner-slide.banner-trans--stack-rise-reverse.is-entering.is-entering-active {
    transform: translateY(0);
    opacity: 1;
    transition: transform 1.1s cubic-bezier(0.22, 1, 0.36, 1),
                opacity 1.1s ease;
}

.home-banner-slide.banner-trans-out--stack-rise-reverse.is-leaving.is-leaving-active {
    transform: scale(0.96) translateY(6%);
    opacity: 0;
    transition: transform 1.1s ease, opacity 1.1s ease;
}

/* ── Fade 降级（prefers-reduced-motion）──────────────────── */
.home-banner-slide.banner-trans--fade.is-entering {
    opacity: 0;
}

.home-banner-slide.banner-trans--fade.is-entering.is-entering-active {
    opacity: 1;
    transition: opacity 0.6s ease;
}

.home-banner-slide.banner-trans-out--fade.is-leaving.is-leaving-active {
    opacity: 0;
    transition: opacity 0.6s ease;
}

@media (prefers-reduced-motion: reduce) {
    .home-banner-slide.is-entering,
    .home-banner-slide.is-leaving {
        clip-path: none !important;
        transform: none !important;
        transition: opacity 0.6s ease !important;
    }

    .home-banner-slide.is-entering .home-banner-bg {
        -webkit-mask-image: none !important;
        mask-image: none !important;
    }
}