/* ===================== Base ===================== */
:root {
    --c-dark: #0a2540;
    --c-blue: #1a5ec9;
    --c-blue-dark: #154aa3;
    --c-orange: #ff6b35;
    --c-text: #1f2937;
    --c-muted: #6b7280;
    --c-bg: #f5f7fa;
    --c-border: #e5e7eb;
    --shadow: 0 2px 12px rgba(10, 37, 64, .08);
    --shadow-lg: 0 12px 40px rgba(10, 37, 64, .12);
    --radius: 8px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--c-text); line-height: 1.6; background: #fff; font-size: 16px;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 72px 0; }
.section-bg { background: var(--c-bg); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 44px; }
.section-head h2 { font-size: 30px; color: var(--c-dark); margin-bottom: 12px; }
.section-head p { color: var(--c-muted); }
.eyebrow { color: var(--c-orange); font-weight: 700; text-transform: uppercase; letter-spacing: 1px; font-size: 13px; }

/* ===================== Buttons ===================== */
.btn { display: inline-block; padding: 13px 28px; border-radius: var(--radius); font-weight: 600; font-size: 15px; cursor: pointer; border: 2px solid transparent; transition: all .2s; }
.btn-primary { background: var(--c-orange); color: #fff; }
.btn-primary:hover { background: #e8551c; transform: translateY(-1px); }
.btn-blue { background: var(--c-blue); color: #fff; }
.btn-blue:hover { background: var(--c-blue-dark); }
.btn-outline { background: transparent; border-color: rgba(255,255,255,.7); color: #fff; }
.btn-outline:hover { background: #fff; color: var(--c-dark); }
.btn-outline-blue { background: transparent; border-color: var(--c-blue); color: var(--c-blue); }
.btn-outline-blue:hover { background: var(--c-blue); color: #fff; }
.btn-sm { padding: 9px 18px; font-size: 14px; }

/* ===================== Header / Nav ===================== */
.site-header { position: sticky; top: 0; background: #fff; z-index: 1000; transition: box-shadow .2s; border-bottom: 1px solid var(--c-border); }
.site-header.scrolled { box-shadow: var(--shadow); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 120px; }
.logo { display: inline-flex; align-items: center; gap: 12px; }
.logo img { height: 120px; width: auto; }
.logo-text { font-size: 22px; font-weight: 800; color: var(--c-dark); }
.nav { display: flex; align-items: center; gap: 30px; }
.nav > a, .nav-dropdown > a { font-weight: 600; color: var(--c-text); font-size: 15px; transition: color .2s; position: relative; }
.nav > a:hover, .nav-dropdown > a:hover, .nav > a.active { color: var(--c-blue); }
.nav-dropdown { position: relative; }
.nav-dropdown > a::after { content: "▾"; font-size: 10px; margin-left: 4px; color: var(--c-muted); }
.dropdown-menu { position: absolute; top: 100%; left: -10px; min-width: 220px; background: #fff; box-shadow: var(--shadow-lg); border-radius: var(--radius); padding: 8px; opacity: 0; visibility: hidden; transform: translateY(8px); transition: all .2s; }
.nav-dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-menu a { display: block; padding: 9px 14px; border-radius: 4px; font-size: 14px; color: var(--c-text); }
.dropdown-menu a:hover { background: var(--c-bg); color: var(--c-blue); }
.dropdown-menu a.dd-top { font-weight: 600; }
.dropdown-menu a.dd-sub { padding-left: 30px; font-size: 13px; color: var(--c-muted); }
.nav-cta { color: #fff !important; }
.nav-cta:hover { background: #e8551c !important; color: #fff !important; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--c-dark); transition: .2s; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===================== Hero ===================== */
.hero-slider { position: relative; max-width: 1200px; height: 600px; margin: 24px auto; overflow: hidden; background: var(--c-dark); border-radius: 8px; }
.hero-slide { position: absolute; top: 0; right: 0; bottom: 0; left: 0; opacity: 0; transition: opacity 1s; display: flex; align-items: center; background-size: cover; background-position: center; }
.hero-slide::before { content: ""; position: absolute; top: 0; right: 0; bottom: 0; left: 0; background: linear-gradient(90deg, rgba(10,37,64,.85) 0%, rgba(10,37,64,.45) 60%, rgba(10,37,64,.2) 100%); }
.hero-slide.active { opacity: 1; }
.hero-content { position: relative; z-index: 2; max-width: 640px; color: #fff; }
.hero-content h1 { font-size: 44px; line-height: 1.2; margin-bottom: 18px; }
.hero-content p { font-size: 18px; opacity: .92; margin-bottom: 28px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-dots { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 3; }
.hero-dot { width: 12px; height: 12px; border-radius: 50%; background: rgba(255,255,255,.4); cursor: pointer; border: 0; }
.hero-dot.active { background: var(--c-orange); }

/* ===================== Categories ===================== */
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.category-card { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); aspect-ratio: 4/3; background: var(--c-dark); }
.category-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.category-card:hover img { transform: scale(1.06); }
.category-card .cat-overlay { position: absolute; top: 0; right: 0; bottom: 0; left: 0; display: flex; flex-direction: column; justify-content: flex-end; padding: 26px; background: linear-gradient(to top, rgba(10,37,64,.9) 0%, rgba(10,37,64,.1) 60%); color: #fff; }
.category-card .cat-overlay h3 { font-size: 22px; margin-bottom: 6px; }
.category-card .cat-overlay span { color: var(--c-orange); font-weight: 600; font-size: 14px; }

/* ===================== Product grid ===================== */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.product-card { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius); overflow: hidden; transition: all .25s; display: flex; flex-direction: column; }
.product-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: transparent; }
.product-card .pc-img { aspect-ratio: 1/1; overflow: hidden; background: var(--c-bg); }
.product-card .pc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.product-card:hover .pc-img img { transform: scale(1.06); }
.product-card .pc-body { padding: 16px 18px 20px; flex: 1; display: flex; flex-direction: column; }
.product-card .pc-model { color: var(--c-orange); font-size: 13px; font-weight: 700; }
.product-card .pc-name { font-size: 16px; font-weight: 600; color: var(--c-dark); margin: 4px 0 6px; }
.product-card .pc-tag { color: var(--c-muted); font-size: 14px; flex: 1; }
.product-card .pc-meta { color: var(--c-muted); font-size: 13px; margin: 8px 0 12px; }
.product-card .pc-link { color: var(--c-blue); font-weight: 600; font-size: 14px; }

/* ===================== Features (Why us) ===================== */
.why-choose { background: linear-gradient(135deg, #0a2540 0%, #15429e 55%, #1a5ec9 100%); color: #fff; }
.why-choose .section-head { margin-bottom: 40px; }
.why-choose .eyebrow { color: rgba(255,255,255,.85); }
.why-choose .section-head h2 { color: #fff; }
.why-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 48px; align-items: center; }
.why-visual { display: flex; align-items: center; justify-content: center; }
.why-circuit { width: 100%; max-width: 360px; height: auto; }
.why-list { display: flex; flex-direction: column; gap: 16px; }
.why-item { display: flex; gap: 18px; align-items: flex-start; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); border-radius: 14px; padding: 20px 22px; transition: transform .28s cubic-bezier(.22,.61,.36,1), background .28s, border-color .28s; }
.why-item:hover { transform: translateY(-4px); background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.32); }
.why-num { flex: 0 0 48px; width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(135deg,#ffffff,#dfe9fb); color: var(--c-blue); font-weight: 700; font-size: 16px; display: flex; align-items: center; justify-content: center; }
.why-body h3 { color: #fff; font-size: 17px; margin-bottom: 6px; }
.why-body p { color: rgba(255,255,255,.82); font-size: 14px; }
@media (max-width: 900px) {
    .why-grid { grid-template-columns: 1fr; gap: 28px; }
    .why-visual { display: none; }
}

/* ===================== Stats ===================== */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat-num { font-size: 40px; font-weight: 800; color: var(--c-orange); }
.stat-label { color: #fff; opacity: .9; font-size: 15px; }
.stats-band { background: var(--c-dark); }

/* ===================== CTA banner ===================== */
.cta-banner { background: linear-gradient(90deg, var(--c-blue), var(--c-blue-dark)); border-radius: 12px; padding: 48px; color: #fff; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-banner h2 { font-size: 28px; margin-bottom: 6px; }
.cta-banner p { opacity: .9; }

/* ===================== Page banner / breadcrumb ===================== */
.page-banner { background: var(--c-dark); color: #fff; padding: 56px 0 44px; text-align: center; }
.page-banner h1 { font-size: 34px; margin-bottom: 8px; }
.page-banner p { opacity: .85; }
.breadcrumb { font-size: 14px; color: var(--c-muted); padding: 16px 0; }
.breadcrumb a:hover { color: var(--c-blue); }

/* ===================== Products page ===================== */
.products-layout { display: grid; grid-template-columns: 220px 1fr; gap: 32px; padding: 48px 0; }
.filters h3 { font-size: 16px; color: var(--c-dark); margin-bottom: 14px; padding-bottom: 10px; border-bottom: 2px solid var(--c-orange); }
.filter-cat { display: block; padding: 9px 12px; border-radius: 4px; color: var(--c-text); font-size: 14px; margin-bottom: 2px; }
.filter-cat:hover, .filter-cat.active { background: var(--c-bg); color: var(--c-blue); font-weight: 600; }
.filter-cat.filter-sub { padding-left: 28px; font-size: 13px; color: var(--c-muted); }
.products-main .toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; color: var(--c-muted); }
.pagination { display: flex; gap: 6px; justify-content: center; margin-top: 40px; }
.pagination a, .pagination span { padding: 8px 14px; border: 1px solid var(--c-border); border-radius: 4px; font-size: 14px; }
.pagination a:hover { background: var(--c-bg); }
.pagination .current { background: var(--c-blue); color: #fff; border-color: var(--c-blue); }
.pagination .disabled { color: #ccc; cursor: default; }
.empty-state { text-align: center; padding: 60px 20px; color: var(--c-muted); }

/* ===================== Product detail ===================== */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; padding: 40px 0; }
.product-gallery .gallery-main { border: 1px solid var(--c-border); border-radius: var(--radius); overflow: hidden; aspect-ratio: 1/1; background: var(--c-bg); }
.product-gallery .gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.gallery-thumb { width: 72px; height: 72px; border-radius: 6px; overflow: hidden; border: 2px solid transparent; cursor: pointer; background: var(--c-bg); }
.gallery-thumb.active, .gallery-thumb:hover { border-color: var(--c-blue); }
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }
.product-info h1 { font-size: 28px; color: var(--c-dark); margin-bottom: 6px; }
.product-info .pd-model { color: var(--c-orange); font-weight: 700; margin-bottom: 16px; }
.product-info .pd-tagline { font-size: 17px; color: var(--c-muted); margin-bottom: 20px; }
.product-info .pd-voltage { display: inline-block; background: rgba(26,94,201,.1); color: var(--c-blue); padding: 6px 14px; border-radius: 20px; font-weight: 600; font-size: 14px; margin-bottom: 24px; }
.specs-table { width: 100%; border-collapse: collapse; margin: 8px 0 26px; }
.specs-table th, .specs-table td { padding: 11px 14px; border-bottom: 1px solid var(--c-border); text-align: left; font-size: 14px; }
.specs-table th { background: var(--c-bg); color: var(--c-dark); width: 42%; font-weight: 600; }
.pd-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.product-desc { padding: 32px 0; line-height: 1.85; }
.product-desc h2, .product-desc h3 { color: var(--c-dark); margin: 24px 0 12px; }
.related { padding: 48px 0; }

/* ===================== About ===================== */
.about-body { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; padding: 48px 0; }
.about-body .about-text h2 { color: var(--c-dark); font-size: 28px; margin-bottom: 16px; }
.about-body p { color: var(--c-muted); margin-bottom: 14px; }
.about-rich { padding: 24px 0; line-height: 1.85; }
.about-rich h2 { color: var(--c-dark); margin: 24px 0 12px; }
.adv-list { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 880px; margin: 28px auto 0; }
.adv-item { display: flex; align-items: center; gap: 16px; background: #fff; border: 1px solid var(--c-border); border-radius: 14px; padding: 22px 24px; }
.adv-num { flex: 0 0 46px; width: 46px; height: 46px; border-radius: 50%; background: var(--c-orange); color: #fff; font-weight: 700; font-size: 18px; display: flex; align-items: center; justify-content: center; }
.adv-name { font-size: 18px; font-weight: 700; color: var(--c-dark); }

/* ===================== Contact ===================== */
.contact-layout { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; padding: 48px 0; }
.contact-info .ci-item { display: flex; gap: 14px; margin-bottom: 22px; }
.contact-info .ci-icon { width: 44px; height: 44px; flex-shrink: 0; border-radius: 50%; background: rgba(26,94,201,.1); display: flex; align-items: center; justify-content: center; color: var(--c-blue); font-weight: 700; }
.contact-info .ci-label { color: var(--c-muted); font-size: 13px; }
.contact-info .ci-value { font-weight: 600; color: var(--c-dark); word-break: break-word; }
.inquiry-form { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.inquiry-form h3 { color: var(--c-dark); margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 14px; color: var(--c-text); }
.form-group label .req { color: var(--c-orange); }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 11px 14px; border: 1px solid var(--c-border); border-radius: 6px; font-size: 15px; font-family: inherit; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--c-blue); }
.hp { position: absolute; left: -9999px; }
.form-msg { margin-top: 14px; padding: 12px 16px; border-radius: 6px; font-size: 14px; display: none; }
.form-msg.success { display: block; background: #e6f7ee; color: #137a4b; border: 1px solid #b7e4c7; }
.form-msg.error { display: block; background: #fdecea; color: #b71c1c; border: 1px solid #f5c6cb; }

/* ===================== Footer ===================== */
.site-footer { background: var(--c-dark); color: rgba(255,255,255,.75); padding-top: 56px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 36px; padding-bottom: 40px; }
.footer-logo { color: #fff; font-size: 20px; font-weight: 800; margin-bottom: 14px; }
.footer-about p { font-size: 14px; line-height: 1.7; margin-bottom: 16px; }
.footer-col h3, .footer-col h4 { color: #fff; margin-bottom: 16px; font-size: 15px; text-transform: uppercase; letter-spacing: .5px; }
.footer-col a { display: block; padding: 5px 0; font-size: 14px; }
.footer-col a:hover { color: var(--c-orange); }
.footer-col p { font-size: 14px; margin-bottom: 8px; }
.footer-col p span { color: rgba(255,255,255,.55); display: block; font-size: 12px; }
.social { display: flex; gap: 10px; }
.social-link { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,.1); display: flex; align-items: center; justify-content: center; font-size: 12px; color: #fff; }
.social-link:hover { background: var(--c-orange); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 18px 0; font-size: 13px; text-align: center; }

/* ===================== WhatsApp float ===================== */
.whatsapp-float { position: fixed; bottom: 26px; right: 26px; width: 56px; height: 56px; border-radius: 50%; background: #25d366; display: flex; align-items: center; justify-content: center; box-shadow: 0 6px 20px rgba(37,211,102,.5); z-index: 900; transition: transform .2s; }
.whatsapp-float:hover { transform: scale(1.08); }

/* ===================== Responsive ===================== */
@media (max-width: 992px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .stats { grid-template-columns: repeat(2, 1fr); gap: 30px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .product-detail, .about-body, .contact-layout { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .logo-text { display: none; }
    .nav-wrap { height: 80px; }
    .logo img { height: 80px; }
    .nav { position: fixed; top: 80px; right: 0; width: 280px; height: calc(100vh - 80px); background: #fff; flex-direction: column; align-items: flex-start; padding: 24px; gap: 6px; box-shadow: var(--shadow-lg); transform: translateX(100%); transition: transform .3s; }
    .nav.open { transform: translateX(0); }
    .nav > a, .nav-dropdown > a { width: 100%; padding: 10px 0; border-bottom: 1px solid var(--c-border); }
    .dropdown-menu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; padding: 0 0 0 16px; }
    .nav-cta { margin-top: 12px; border-bottom: 0 !important; }
    .hero-slider { height: 440px; margin: 16px auto; border-radius: 6px; }
    .hero-content h1 { font-size: 30px; }
    .hero-content p { font-size: 16px; }
    .category-grid { grid-template-columns: 1fr; }
    .section { padding: 48px 0; }
    .section-head h2 { font-size: 24px; }
    .products-layout { grid-template-columns: 1fr; }
    .filters { order: 2; }
    .form-row { grid-template-columns: 1fr; }
    .cta-banner { padding: 32px; flex-direction: column; text-align: center; }
}
@media (max-width: 576px) {
    .product-grid { grid-template-columns: 1fr; }
    .stats { grid-template-columns: 1fr 1fr; }
    .adv-list { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-content h1 { font-size: 26px; }
    .page-banner h1 { font-size: 26px; }
}

/* ===================== 移动端优化（Mobile-First / 触摸≥48px / 海外机型）===================== */
/* 防止 iOS/Android 横屏或缩放时自动调整字号 */
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
/* 长英文单词 / URL 不撑破布局 */
body, h1, h2, h3, h4, p, .pc-name, .section-head h2, .product-info h1 {
    overflow-wrap: break-word; word-break: break-word;
}

@media (max-width: 768px) {
    /* 表单输入 ≥16px：防止 iOS Safari 聚焦输入时自动放大整页 */
    .form-group input, .form-group textarea, .form-group select { font-size: 16px; }

    /* 触摸目标 ≥48px（WCAG/Google 推荐） */
    .btn, .btn-sm { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; }
    .filter-cat { min-height: 48px; display: flex; align-items: center; padding: 14px 12px; }
    .pagination a, .pagination span, .pagination .current {
        min-height: 48px; min-width: 48px; padding: 10px 16px;
        display: inline-flex; align-items: center; justify-content: center;
    }
    .nav > a, .nav-dropdown > a { min-height: 48px; }
    .social-link { width: 48px; height: 48px; }
    .gallery-thumb { width: 80px; height: 80px; }
    .hero-dot { width: 14px; height: 14px; }

    /* iPhone 刘海 / 底部 Home 条 安全区适配 */
    .site-header { padding-top: env(safe-area-inset-top, 0); }
    .nav { padding-bottom: env(safe-area-inset-bottom, 0); }
    .whatsapp-float {
        width: 60px; height: 60px;
        bottom: calc(20px + env(safe-area-inset-bottom, 0));
    }
    .footer-bottom { padding-bottom: calc(18px + env(safe-area-inset-bottom, 0)); }

    /* 海外手机阅读体验：标题/间距收敛，避免拥挤 */
    .pc-body { padding: 14px 16px 18px; }
    .product-info h1 { font-size: 24px; }
    .product-info .pd-tagline { font-size: 16px; }
    .section-head { margin-bottom: 32px; }
    .specs-table th, .specs-table td { padding: 9px 10px; }
}

/* ===================== 视觉增强：毛玻璃导航 / 滚动入场 / 悬浮微交互 / Hero 动效 ===================== */

/* —— 导航栏毛玻璃 —— */
.site-header {
    background: rgba(255,255,255,.72);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    backdrop-filter: saturate(180%) blur(14px);
    border-bottom-color: rgba(10,37,64,.06);
}
.site-header.scrolled {
    background: rgba(255,255,255,.88);
    box-shadow: 0 6px 24px rgba(10,37,64,.10);
}
/* backdrop-filter 不支持时回退纯白 */
@supports not ((-webkit-backdrop-filter: blur(2px)) or (backdrop-filter: blur(2px))) {
    .site-header, .site-header.scrolled { background: #fff; }
}

/* —— 导航链接下划线动画（仅一级链接，避开下拉箭头与 CTA）—— */
.nav > a:not(.nav-cta)::after {
    content: ""; position: absolute; left: 0; bottom: -4px;
    height: 2px; width: 0; background: var(--c-orange);
    transition: width .25s ease;
}
.nav > a:not(.nav-cta):hover::after,
.nav > a:not(.nav-cta).active::after { width: 100%; }

/* —— 滚动入场 —— */
.reveal {
    opacity: 0; transform: translateY(28px);
    transition: opacity .7s cubic-bezier(.22,.61,.36,1), transform .7s cubic-bezier(.22,.61,.36,1);
    will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
.reveal[data-delay="4"] { transition-delay: .32s; }

/* —— 悬浮微交互（按钮 / 卡片 / 图标）—— */
.btn-primary:hover, .btn-blue:hover { transform: translateY(-2px); }
.btn-primary:hover { box-shadow: 0 10px 24px rgba(255,107,53,.32); }
.btn-blue:hover { box-shadow: 0 10px 24px rgba(26,94,201,.32); }
.btn-outline-blue:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(26,94,201,.18); }
.product-card { transition: transform .28s cubic-bezier(.22,.61,.36,1), box-shadow .28s, border-color .28s; }
.product-card:hover { transform: translateY(-6px); }
.category-card { transition: box-shadow .3s ease, transform .3s ease; }
.category-card:hover { box-shadow: 0 18px 44px rgba(10,37,64,.22); }
.adv-item { transition: transform .28s cubic-bezier(.22,.61,.36,1), box-shadow .28s, border-color .28s; }
.adv-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--c-orange); }
.social-link { transition: transform .2s ease, background .2s ease; }
.social-link:hover { transform: translateY(-3px); }
.stats > div { transition: transform .2s ease; }
.stats > div:hover { transform: translateY(-4px); }

/* —— Hero 内容入场 + 粒子画布 —— */
.hero-slide .hero-content > * { opacity: 0; transform: translateY(22px); }
.hero-slide.active .hero-content > * { animation: heroIn .8s cubic-bezier(.22,.61,.36,1) forwards; }
.hero-slide.active .hero-content > *:nth-child(2) { animation-delay: .15s; }
.hero-slide.active .hero-content > *:nth-child(3) { animation-delay: .3s; }
@keyframes heroIn { to { opacity: 1; transform: none; } }
#heroCanvas { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 1; pointer-events: none; }

/* —— 打字光标 —— */
.typed-cursor { display: inline-block; width: 2px; height: 1em; background: #fff; margin-left: 3px; vertical-align: -2px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* —— 页面 banner 入场 —— */
.page-banner > .container { animation: heroIn .7s cubic-bezier(.22,.61,.36,1) both; }

/* —— 尊重「减少动态」系统偏好 —— */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
    .reveal { opacity: 1 !important; transform: none !important; }
    .hero-slide .hero-content > * { opacity: 1 !important; transform: none !important; }
}