/* =============================================================
   BOOMMAX - 子页面样式 (boommax-pages.css)
   依赖 boommax.css 的 CSS 变量（--bmx-*）
   覆盖：页面Hero、面包屑、产品列表/详情、3D区、画廊、规格表、
        下载中心、地图/二维码、FAQ手风琴、侧栏
   设计规范：见 design-system/MASTER.md
   ============================================================= */

/* =============================================================
   通用：页面 Hero 区 + 面包屑
   ============================================================= */
.bmx-main { position: relative; z-index: 2; }

.bmx-page-hero {
    position: relative;
    padding: 8rem 0 3rem;
    overflow: hidden;
}
.bmx-page-hero::before {
    content: '';
    position: absolute; inset: 0; z-index: -1;
    /* 金辉主光（顶部偏右）+ 科技蓝点缀，与全站基调一致 */
    background:
        radial-gradient(circle at 75% 25%, var(--bmx-glow-gold), transparent 50%),
        radial-gradient(circle at 20% 70%, var(--bmx-glow-blue), transparent 50%);
}
.bmx-cat-banner {
    min-height: 360px;
    display: flex; align-items: center;
    position: relative;
}
/* 分类 banner：用封面图做背景，叠加暗色渐变保证文字对比度 */
.bmx-cat-banner::after {
    content: '';
    position: absolute; inset: 0; z-index: -1;
    background-image: var(--banner-img, none);
    background-size: cover; background-position: center;
    opacity: 0.35;
}
.bmx-cat-banner::before {
    background:
        linear-gradient(180deg, rgba(5,6,10,0.7), rgba(5,6,10,0.9)),
        radial-gradient(circle at 75% 25%, var(--bmx-glow-gold), transparent 50%),
        radial-gradient(circle at 20% 70%, var(--bmx-glow-blue), transparent 50%);
}

/* 面包屑 */
.bmx-crumbs {
    display: flex; align-items: center; flex-wrap: wrap; gap: 0.5rem;
    margin-bottom: 2rem;
    font-size: 0.85rem; color: var(--bmx-muted);
}
.bmx-crumb-link { color: var(--bmx-muted); transition: color 0.2s; cursor: pointer; }
.bmx-crumb-link:hover { color: var(--bmx-gold-l); }
.bmx-crumb-current { color: var(--bmx-text); font-weight: 600; }

/* 页面 hero 内的 section-head 覆盖（左对齐） */
.bmx-page-hero .bmx-section-head h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 1rem;
}

/* 可访问性工具类 */
.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;
}

/* =============================================================
   产品总览：筛选式产品目录
   ============================================================= */
.bmx-catalog-hero { padding-bottom: 4rem; }
.bmx-catalog-hero-grid {
    display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
    gap: 2rem; align-items: end;
}
.bmx-catalog-hero-copy { text-align: left; margin-bottom: 0; }
.bmx-catalog-hero-copy p { max-width: 720px; }
.bmx-catalog-stats {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.9rem;
    padding: 1rem; border: 1px solid var(--bmx-line); border-radius: 24px;
    background:
        radial-gradient(circle at 80% 0%, rgba(202,138,4,0.16), transparent 42%),
        rgba(20,23,33,0.58);
    backdrop-filter: blur(16px) saturate(130%);
    box-shadow: 0 22px 60px rgba(0,0,0,0.28);
}
.bmx-catalog-stat {
    min-height: 118px; padding: 1.1rem; border-radius: 18px;
    border: 1px solid rgba(255,255,255,0.08);
    background: linear-gradient(145deg, rgba(255,255,255,0.055), rgba(255,255,255,0.015));
    display: flex; flex-direction: column; justify-content: space-between;
}
.bmx-catalog-stat-wide { grid-column: 1 / -1; min-height: 96px; }
.bmx-catalog-stat span {
    font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; line-height: 1;
    letter-spacing: -0.04em;
    background: linear-gradient(135deg, var(--bmx-text), var(--bmx-gold-l));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.bmx-catalog-stat strong {
    color: var(--bmx-muted); font-size: 0.78rem; letter-spacing: 0.1em;
    text-transform: uppercase; line-height: 1.5;
}
.bmx-catalog-section { padding-top: 1rem; }
.bmx-catalog-shell {
    position: relative; overflow: hidden;
    border: 1px solid var(--bmx-line); border-radius: 30px;
    background:
        radial-gradient(circle at 12% 0%, rgba(77,124,255,0.11), transparent 34%),
        radial-gradient(circle at 88% 8%, rgba(202,138,4,0.16), transparent 38%),
        rgba(12,14,22,0.72);
    backdrop-filter: blur(18px) saturate(135%);
    box-shadow: 0 30px 90px rgba(0,0,0,0.34);
}
.bmx-catalog-shell::before {
    content: ''; position: absolute; inset: 0; pointer-events: none;
    border-radius: inherit; padding: 1px;
    background: linear-gradient(135deg, rgba(250,204,21,0.5), rgba(77,124,255,0.12), transparent 58%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude;
    opacity: 0.42;
}
.bmx-catalog-toolbar {
    position: relative; z-index: 1;
    padding: 1.5rem; border-bottom: 1px solid var(--bmx-line);
}
.bmx-catalog-toolbar-head {
    display: flex; justify-content: space-between; gap: 1.5rem; align-items: flex-end;
    margin-bottom: 1.35rem;
}
.bmx-catalog-toolbar-head h2 {
    font-size: clamp(1.45rem, 3vw, 2.2rem); font-weight: 800;
    letter-spacing: -0.03em; margin-top: 0.25rem;
}
.bmx-catalog-count {
    flex-shrink: 0; min-width: 170px; text-align: right;
    color: var(--bmx-muted); font-size: 0.88rem;
}
.bmx-catalog-count span:first-child { color: var(--bmx-gold-l); font-weight: 800; font-size: 1.3rem; }
.bmx-catalog-controls {
    display: flex; flex-wrap: wrap; gap: 0.85rem 0.75rem; align-items: center;
}
.bmx-filter-group {
    flex: 1 1 100%; display: flex; flex-wrap: wrap; gap: 0.55rem;
}
.bmx-catalog-search { flex: 1 1 260px; min-width: 0; }
.bmx-filter-chip-ghost,
.bmx-catalog-reset { flex: 0 0 auto; }
.bmx-filter-chip,
.bmx-catalog-reset {
    min-height: 44px;
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    border: 1px solid var(--bmx-line); border-radius: 999px;
    background: rgba(255,255,255,0.035); color: var(--bmx-muted);
    padding: 0.58rem 0.95rem; font-size: 0.84rem; font-weight: 700;
    cursor: pointer; transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.bmx-filter-chip em {
    min-width: 1.55rem; height: 1.55rem; padding: 0 0.45rem;
    border-radius: 999px; display: inline-grid; place-items: center;
    background: rgba(255,255,255,0.06); color: var(--bmx-text);
    font-size: 0.72rem; font-style: normal;
}
.bmx-filter-chip:hover,
.bmx-catalog-reset:hover {
    color: var(--bmx-text); border-color: rgba(250,204,21,0.55);
    background: rgba(202,138,4,0.09); transform: translateY(-1px);
}
.bmx-filter-chip.is-active,
.bmx-filter-chip[aria-pressed="true"] {
    color: #1a1408; border-color: transparent;
    background: linear-gradient(135deg, var(--bmx-gold), var(--bmx-gold-l));
    box-shadow: 0 10px 30px rgba(202,138,4,0.22);
}
.bmx-filter-chip.is-active em,
.bmx-filter-chip[aria-pressed="true"] em {
    color: #1a1408; background: rgba(255,255,255,0.3);
}
.bmx-filter-chip-ghost[aria-pressed="true"] svg { color: #1a1408; }
.bmx-catalog-reset { color: var(--bmx-text); }
.bmx-catalog-search {
    min-height: 48px; display: flex; align-items: center; gap: 0.65rem;
    padding: 0 1rem; border: 1px solid var(--bmx-line); border-radius: 999px;
    background: rgba(5,6,10,0.5); color: var(--bmx-muted);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.bmx-catalog-search:focus-within {
    border-color: rgba(250,204,21,0.7);
    box-shadow: 0 0 0 3px rgba(250,204,21,0.12);
    background: rgba(5,6,10,0.72);
}
.bmx-catalog-search input {
    width: 100%; min-width: 0; border: 0; outline: 0; background: transparent;
    color: var(--bmx-text); font: inherit; font-size: 0.9rem;
}
.bmx-catalog-search input::placeholder { color: var(--bmx-muted); }
.bmx-catalog-grid {
    position: relative; z-index: 1;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
    padding: 1.5rem;
}
.bmx-catalog-card {
    min-height: auto;
    opacity: 1; transform: translateY(0) scale(1);
    transition: opacity 0.25s ease, transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.bmx-catalog-card.is-hidden {
    display: none;
}
.bmx-catalog-card:hover { box-shadow: 0 20px 55px rgba(202,138,4,0.13); }
.bmx-catalog-img { aspect-ratio: 1.2 / 1; }
.bmx-catalog-img::after {
    content: ''; position: absolute; inset: auto 0 0 0; height: 50%;
    background: linear-gradient(to top, rgba(5,6,10,0.72), transparent);
    pointer-events: none;
}
.bmx-catalog-badge {
    position: absolute; left: 1rem; bottom: 1rem; z-index: 2;
    max-width: calc(100% - 2rem); overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    padding: 0.38rem 0.75rem; border-radius: 999px;
    border: 1px solid rgba(250,204,21,0.35);
    background: rgba(5,6,10,0.64); backdrop-filter: blur(10px);
    color: var(--bmx-gold-l); font-size: 0.74rem; font-weight: 800;
    letter-spacing: 0.08em; text-transform: uppercase;
}
.bmx-catalog-info { min-height: 250px; justify-content: space-between; }
.bmx-catalog-code {
    display: inline-flex; margin-bottom: 0.55rem;
    color: var(--bmx-gold-l); font-size: 0.72rem; font-weight: 800;
    letter-spacing: 0.16em; text-transform: uppercase;
}
.bmx-catalog-empty {
    position: relative; z-index: 1;
    display: none; flex-direction: column; align-items: center; gap: 0.9rem;
    margin: 1.5rem; padding: 4rem 1.5rem; text-align: center;
    border: 1px dashed rgba(250,204,21,0.28); border-radius: 22px;
    background: rgba(255,255,255,0.025); color: var(--bmx-muted);
}
.bmx-catalog-empty.is-visible { display: flex; }
.bmx-catalog-empty[hidden] { display: none !important; }
.bmx-catalog-empty svg { color: var(--bmx-gold-l); opacity: 0.55; }
.bmx-catalog-empty h3 { color: var(--bmx-text); font-size: 1.25rem; font-weight: 800; }
.bmx-catalog-empty p { max-width: 520px; }
/* focus-visible 由 boommax.css 的全局规则统一处理（金环） */

/* =============================================================
   产品列表：产品卡片（区别于首页分类卡）
   ============================================================= */
.bmx-product-list { grid-template-columns: repeat(3, 1fr); }
.bmx-product-card {
    min-height: auto;
    padding: 0;
    overflow: hidden;
    display: flex; flex-direction: column;
}
.bmx-product-img {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bmx-bg-2), #16181f);
    position: relative;
}
.bmx-product-img img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.5s ease;
}
.bmx-product-card:hover .bmx-product-img img { transform: scale(1.08); }
.bmx-product-img-ph {
    width: 100%; height: 100%;
    background:
        repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(202,138,4,0.05) 10px, rgba(202,138,4,0.05) 20px);
}
.bmx-product-info {
    padding: 1.5rem;
    display: flex; flex-direction: column; gap: 0.5rem; flex: 1;
}
.bmx-product-info h3 { font-size: 1.1rem; font-weight: 700; }
.bmx-product-info p {
    font-size: 0.88rem; color: var(--bmx-muted);
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    overflow: hidden;
}
.bmx-product-spec-mini {
    display: flex; flex-wrap: wrap; gap: 0.5rem;
    margin-top: 0.5rem;
}
.bmx-product-spec-mini span {
    font-size: 0.72rem; color: var(--bmx-gold-l);
    background: rgba(202,138,4,0.08);
    border: 1px solid rgba(202,138,4,0.2);
    padding: 0.2rem 0.6rem; border-radius: 6px;
}
.bmx-card-meta {
    display: flex; justify-content: space-between; align-items: center;
    margin-top: 1.5rem;
}
.bmx-card-count {
    font-size: 0.8rem; color: var(--bmx-muted);
    background: var(--bmx-glass); padding: 0.3rem 0.8rem; border-radius: 999px;
}

/* 分类快速切换 */
.bmx-cat-switcher {
    margin-top: 3rem; padding-top: 2rem;
    border-top: 1px solid var(--bmx-line);
    display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center;
    font-size: 0.9rem; color: var(--bmx-muted);
}
.bmx-cat-switcher a {
    padding: 0.45rem 1rem; border-radius: 999px;
    border: 1px solid var(--bmx-line); color: var(--bmx-text);
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease; font-size: 0.85rem;
    cursor: pointer;
}
.bmx-cat-switcher a:hover { border-color: var(--bmx-gold); color: var(--bmx-gold-l); background: rgba(202,138,4,0.08); }

/* 空状态 */
.bmx-empty {
    text-align: center; padding: 4rem 1rem;
    color: var(--bmx-muted);
    display: flex; flex-direction: column; align-items: center; gap: 1.5rem;
}
.bmx-empty svg { opacity: 0.4; }

/* =============================================================
   产品详情页
   ============================================================= */
.bmx-detail-hero { padding: 8rem 0 4rem; }
.bmx-detail-layout {
    display: grid; grid-template-columns: 1.2fr 1fr; gap: 3rem;
    align-items: start;
}

/* 视图切换 Tab */
.bmx-view-tabs {
    display: flex; gap: 0.5rem; margin-bottom: 1rem;
}
.bmx-view-tab {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.6rem 1.2rem; border-radius: 10px;
    border: 1px solid var(--bmx-line); background: var(--bmx-glass);
    color: var(--bmx-muted); font-size: 0.88rem; font-weight: 600;
    cursor: pointer; transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}
.bmx-view-tab:hover { color: var(--bmx-text); border-color: var(--bmx-gold); }
.bmx-view-tab.is-active {
    color: #1a1408; background: linear-gradient(135deg, var(--bmx-gold), var(--bmx-gold-l));
    border-color: transparent;
    box-shadow: 0 4px 20px rgba(202,138,4,0.3);
}

.bmx-view-panel { display: none; }
.bmx-view-panel.is-active { display: block; }
.bmx-view-panel[hidden] { display: none; }

/* 3D 区 */
#bmx-product-canvas {
    width: 100%; aspect-ratio: 1/1;
    border-radius: 20px;
    background: radial-gradient(circle at center, #0c0e16, #05060a);
    border: 1px solid var(--bmx-line);
    cursor: grab;
    display: block;
}
#bmx-product-canvas:active { cursor: grabbing; }
.bmx-3d-hint {
    position: relative; margin-top: 0.75rem; text-align: center;
    font-size: 0.78rem; color: var(--bmx-muted); letter-spacing: 0.05em;
}
.bmx-3d-controls {
    position: absolute; top: 1rem; right: 1rem;
    display: flex; flex-direction: column; gap: 0.5rem; z-index: 5;
}
.bmx-3d-btn {
    width: 40px; height: 40px; border-radius: 10px;
    background: var(--bmx-glass); backdrop-filter: blur(10px);
    border: 1px solid var(--bmx-line); color: var(--bmx-text);
    display: grid; place-items: center; cursor: pointer;
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.bmx-3d-btn:hover { border-color: var(--bmx-gold); color: var(--bmx-gold-l); background: rgba(202,138,4,0.12); }
.bmx-3d-btn.is-active { color: var(--bmx-gold-l); border-color: var(--bmx-gold); }
.bmx-3d-fallback { width: 100%; border-radius: 20px; }

/* 图廊 */
.bmx-gallery-main {
    position: relative; aspect-ratio: 1/1; border-radius: 20px; overflow: hidden;
    background: var(--bmx-bg-2); border: 1px solid var(--bmx-line);
}
.bmx-gallery-img {
    position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
    opacity: 0; transition: opacity 0.4s ease;
}
.bmx-gallery-img.is-active { opacity: 1; position: relative; }
.bmx-gallery-thumbs {
    display: flex; gap: 0.75rem; margin-top: 1rem; overflow-x: auto;
    padding-bottom: 0.5rem;
}
.bmx-gallery-thumb {
    flex-shrink: 0; width: 72px; height: 72px; border-radius: 10px; overflow: hidden;
    border: 2px solid var(--bmx-line); cursor: pointer; padding: 0;
    transition: border-color 0.2s; background: var(--bmx-bg-2);
}
.bmx-gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }
.bmx-gallery-thumb:hover { border-color: var(--bmx-gold); }
.bmx-gallery-thumb.is-active { border-color: var(--bmx-gold-l); }

/* 详情信息区 */
.bmx-detail-info { position: sticky; top: 6rem; }
.bmx-detail-cat {
    display: inline-block; font-size: 0.78rem; font-weight: 700;
    letter-spacing: 0.15em; text-transform: uppercase; color: var(--bmx-gold-l);
    margin-bottom: 1rem;
}
.bmx-detail-info h1 {
    font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800;
    line-height: 1.1; letter-spacing: -0.02em; margin-bottom: 1rem;
}
.bmx-detail-intro {
    color: var(--bmx-muted); font-size: 1.05rem; margin-bottom: 1.75rem;
}
.bmx-detail-specs {
    list-style: none; margin-bottom: 2rem;
    border: 1px solid var(--bmx-line); border-radius: 14px; overflow: hidden;
}
.bmx-detail-specs li,
.bmx-detail-specs .bmx-spec-pair {
    display: flex; justify-content: space-between; gap: 1rem;
    padding: 0.75rem 1.25rem; font-size: 0.9rem;
    border-bottom: 1px solid var(--bmx-line);
}
.bmx-detail-specs li:last-child,
.bmx-detail-specs .bmx-spec-pair:last-child { border-bottom: none; }
.bmx-detail-specs li:nth-child(odd),
.bmx-detail-specs .bmx-spec-pair:nth-child(odd) { background: rgba(255,255,255,0.02); }
.bmx-detail-specs dd { margin-inline: 0; }
.bmx-spec-name { color: var(--bmx-muted); }
.bmx-spec-val { color: var(--bmx-text); font-weight: 600; text-align: right; }
.bmx-detail-cta { display: flex; gap: 0.75rem; flex-wrap: wrap; }

/* 详情富文本 */
.bmx-prose { max-width: 760px; margin: 0 auto; }
.bmx-prose h2 { font-size: 1.8rem; font-weight: 700; margin: 2rem 0 1rem; letter-spacing: -0.02em; }
.bmx-prose h3 { font-size: 1.3rem; font-weight: 600; margin: 1.5rem 0 0.75rem; }
.bmx-prose p { color: var(--bmx-muted); margin-bottom: 1.25rem; line-height: 1.8; }
.bmx-prose ul, .bmx-prose ol { margin: 0 0 1.5rem 1.5rem; color: var(--bmx-muted); }
.bmx-prose li { margin-bottom: 0.5rem; line-height: 1.7; }
.bmx-prose img { border-radius: 14px; margin: 1.5rem 0; }
.bmx-prose strong { color: var(--bmx-text); }

/* 规格详表 */
.bmx-spec-table {
    border: 1px solid var(--bmx-line); border-radius: 16px; overflow: hidden;
    max-width: 800px; margin: 0 auto;
}
.bmx-spec-table dd { margin-inline: 0; }
.bmx-spec-row {
    display: grid; grid-template-columns: 1fr 2fr;
    padding: 1rem 1.5rem; border-bottom: 1px solid var(--bmx-line);
    transition: background 0.2s;
}
.bmx-spec-row:last-child { border-bottom: none; }
.bmx-spec-row:hover { background: rgba(202,138,4,0.04); }
.bmx-spec-row-name { color: var(--bmx-muted); font-size: 0.92rem; }
.bmx-spec-row-value { color: var(--bmx-text); font-weight: 600; }

/* 相关产品 */
.bmx-related-grid { grid-template-columns: repeat(3, 1fr); }

/* =============================================================
   下载中心
   ============================================================= */
.bmx-downloads-hero { padding-bottom: 4rem; }
.bmx-downloads-hero-grid {
    display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 0.82fr);
    gap: 2rem; align-items: center;
}
.bmx-downloads-cover {
    position: relative; aspect-ratio: 4 / 3; overflow: hidden;
    border: 1px solid var(--bmx-line); border-radius: 28px;
    background: var(--bmx-glass); box-shadow: 0 26px 80px rgba(0,0,0,0.32);
}
.bmx-downloads-cover::before {
    content: ''; position: absolute; inset: 0; z-index: 1;
    background:
        linear-gradient(135deg, rgba(5,6,10,0.12), rgba(5,6,10,0.45)),
        radial-gradient(circle at 18% 18%, rgba(250,204,21,0.26), transparent 36%);
    pointer-events: none;
}
.bmx-downloads-cover img {
    width: 100%; height: 100%; object-fit: cover; display: block;
    transform: scale(1.02);
}
.bmx-dl-tabs {
    display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 2rem;
    padding-bottom: 1.5rem; border-bottom: 1px solid var(--bmx-line);
}
.bmx-dl-tab {
    padding: 0.6rem 1.3rem; border-radius: 999px;
    border: 1px solid var(--bmx-line); background: var(--bmx-glass);
    color: var(--bmx-muted); font-size: 0.9rem; font-weight: 600;
    cursor: pointer; transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}
.bmx-dl-tab:hover { color: var(--bmx-text); border-color: var(--bmx-gold); }
.bmx-dl-tab.is-active {
    color: #1a1408; background: linear-gradient(135deg, var(--bmx-gold), var(--bmx-gold-l));
    border-color: transparent;
}

.bmx-dl-card {
    display: grid; grid-template-columns: 120px 1fr auto;
    gap: 1.25rem; align-items: center;
    padding: 1rem 1.5rem 1rem 1rem; margin-bottom: 0.75rem;
    border: 1px solid var(--bmx-line); border-radius: 16px;
    background: var(--bmx-glass); backdrop-filter: blur(10px);
    transition: all 0.25s ease; cursor: pointer;
}
.bmx-dl-card:hover {
    border-color: var(--bmx-gold); transform: translateX(6px);
    box-shadow: -6px 0 30px rgba(202,138,4,0.1);
}
.bmx-dl-cover {
    position: relative; width: 120px; aspect-ratio: 4 / 3; overflow: hidden;
    border: 1px solid rgba(255,255,255,0.08); border-radius: 12px;
    background: linear-gradient(135deg, var(--bmx-bg-2), #16181f);
}
.bmx-dl-cover::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(5,6,10,0.52), transparent 58%);
    pointer-events: none;
}
.bmx-dl-cover img {
    width: 100%; height: 100%; object-fit: cover; display: block;
    transition: transform 0.45s ease;
}
.bmx-dl-card:hover .bmx-dl-cover img { transform: scale(1.08); }
.bmx-dl-cover-badge {
    position: absolute; left: 0.55rem; bottom: 0.5rem; z-index: 1;
    min-width: 2.7rem; padding: 0.24rem 0.52rem; border-radius: 6px;
    color: #1a1408; font-size: 0.66rem; font-weight: 800; letter-spacing: 0.06em;
    text-align: center; box-shadow: 0 8px 18px rgba(0,0,0,0.18);
}
.bmx-dl-ext-pdf { background: linear-gradient(135deg, #ef4444, #f87171); }
.bmx-dl-ext-zip { background: linear-gradient(135deg, #ca8a04, #facc15); }
.bmx-dl-ext-xls, .bmx-dl-ext-xlsx { background: linear-gradient(135deg, #16a34a, #4ade80); }
.bmx-dl-ext-doc, .bmx-dl-ext-docx { background: linear-gradient(135deg, #2563eb, #60a5fa); }
.bmx-dl-ext-file { background: linear-gradient(135deg, #6b7280, #9ca3af); }
.bmx-dl-info h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.25rem; }
.bmx-dl-info p { font-size: 0.85rem; color: var(--bmx-muted); margin-bottom: 0.5rem; }
.bmx-dl-meta {
    display: flex; flex-wrap: wrap; gap: 0.75rem;
    font-size: 0.75rem; color: var(--bmx-muted);
}
.bmx-dl-cat {
    color: var(--bmx-gold-l) !important;
    background: rgba(202,138,4,0.08); padding: 0.15rem 0.6rem; border-radius: 5px;
}
.bmx-dl-action {
    color: var(--bmx-gold-l); opacity: 0.6;
    transition: opacity 0.2s, transform 0.2s;
}
.bmx-dl-card:hover .bmx-dl-action { opacity: 1; transform: translateY(2px); }

/* =============================================================
   关于我们
   ============================================================= */
.bmx-about-features {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.bmx-about-feature {
    padding: 2rem; border: 1px solid var(--bmx-line); border-radius: 20px;
    background: var(--bmx-glass); backdrop-filter: blur(12px);
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.bmx-about-feature:hover { border-color: var(--bmx-gold); transform: translateY(-4px); }
.bmx-about-feature h3 { font-size: 1.2rem; font-weight: 700; margin: 1rem 0 0.5rem; }
.bmx-about-feature p { color: var(--bmx-muted); font-size: 0.92rem; }

/* About: process timeline */
.bmx-about-flow {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem;
    margin-top: 2.5rem;
}
.bmx-about-step {
    position: relative; padding: 2rem 1.5rem; border: 1px solid var(--bmx-line);
    border-radius: 20px; background: var(--bmx-glass); backdrop-filter: blur(12px);
    transition: transform 0.3s ease, border-color 0.3s ease;
    overflow: hidden;
}
.bmx-about-step::before {
    content: ''; position: absolute; inset: 0 0 auto 0; height: 3px;
    background: linear-gradient(90deg, var(--bmx-gold), var(--bmx-gold-l));
    transform: scaleX(0); transform-origin: left; transition: transform 0.4s ease;
}
.bmx-about-step:hover { transform: translateY(-4px); border-color: var(--bmx-gold); }
.bmx-about-step:hover::before { transform: scaleX(1); }
.bmx-about-step-num {
    display: block; font-size: 2.4rem; font-weight: 800; line-height: 1;
    letter-spacing: -0.04em; margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--bmx-gold), var(--bmx-gold-l));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.bmx-about-step h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
.bmx-about-step p { color: var(--bmx-muted); font-size: 0.9rem; line-height: 1.6; }

/* 地图 + 地址 */
.bmx-location-grid {
    display: grid; grid-template-columns: 1.4fr 1fr; gap: 2rem;
}
.bmx-location-map {
    border-radius: 20px; overflow: hidden;
    border: 1px solid var(--bmx-line); position: relative;
    background: var(--bmx-bg-2);
}
.bmx-location-map iframe {
    width: 100%; height: 400px; border: 0; display: block;
    filter: invert(0.92) hue-rotate(180deg) contrast(0.9);
}
.bmx-map-link {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.75rem 1.25rem; margin: 1rem;
    background: var(--bmx-glass); backdrop-filter: blur(10px);
    border: 1px solid var(--bmx-line); border-radius: 999px;
    font-size: 0.85rem; color: var(--bmx-gold-l); cursor: pointer;
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.bmx-map-link:hover { border-color: var(--bmx-gold); background: rgba(202,138,4,0.12); }
.bmx-location-info { display: flex; flex-direction: column; gap: 1.5rem; }
.bmx-loc-item {
    display: flex; gap: 1rem; align-items: flex-start;
    padding: 1.5rem; border: 1px solid var(--bmx-line); border-radius: 16px;
    background: var(--bmx-glass);
}
.bmx-loc-icon {
    flex-shrink: 0; width: 44px; height: 44px; border-radius: 11px;
    background: linear-gradient(135deg, rgba(202,138,4,0.2), rgba(202,138,4,0.05));
    border: 1px solid rgba(202,138,4,0.3);
    display: grid; place-items: center; color: var(--bmx-gold-l);
}
.bmx-loc-icon svg { width: 22px; height: 22px; }
.bmx-loc-item h4 { font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--bmx-text); margin-bottom: 0.3rem; }
.bmx-loc-item p { color: var(--bmx-muted); font-size: 0.95rem; }
.bmx-loc-item a:hover { color: var(--bmx-gold-l); }

/* 二维码卡片 */
.bmx-qr-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.bmx-qr-card {
    text-align: center; padding: 2rem;
    border: 1px solid var(--bmx-line); border-radius: 20px;
    background: var(--bmx-glass); backdrop-filter: blur(12px);
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.bmx-qr-card:hover { border-color: var(--bmx-gold); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(202,138,4,0.15); }
.bmx-qr-img {
    width: 180px; height: 180px; margin: 0 auto 1.25rem;
    border-radius: 16px; overflow: hidden;
    background: #fff; padding: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}
.bmx-qr-img img { width: 100%; height: 100%; object-fit: contain; }
.bmx-qr-ph {
    width: 100%; height: 100%;
    display: grid; place-items: center; color: var(--bmx-bg-2);
}
.bmx-qr-ph svg { width: 80px; height: 80px; }
.bmx-qr-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 0.3rem; }
.bmx-qr-card p { font-size: 0.88rem; color: var(--bmx-muted); }

/* =============================================================
   FAQ
   ============================================================= */
.bmx-faq-layout {
    display: grid; grid-template-columns: 260px 1fr; gap: 3rem;
    align-items: start;
}
.bmx-faq-sidebar { position: sticky; top: 6rem; }
.bmx-faq-nav { display: flex; flex-direction: column; gap: 0.25rem; }
.bmx-faq-nav-link {
    display: flex; justify-content: space-between; align-items: center;
    padding: 0.75rem 1rem; border-radius: 10px;
    color: var(--bmx-muted); font-size: 0.92rem; font-weight: 500;
    cursor: pointer; transition: color 0.2s ease, background 0.2s ease;
}
.bmx-faq-nav-link:hover { background: rgba(202,138,4,0.08); color: var(--bmx-text); }
.bmx-faq-nav-link.is-active { color: var(--bmx-gold-l); background: rgba(202,138,4,0.1); }
.bmx-faq-nav-count {
    font-size: 0.75rem; color: var(--bmx-muted);
    background: var(--bmx-glass); padding: 0.1rem 0.5rem; border-radius: 5px;
}
.bmx-faq-nav-cta {
    display: flex; align-items: center; gap: 0.5rem;
    margin-top: 1rem; padding: 0.85rem 1rem;
    border-radius: 10px; border: 1px solid rgba(202,138,4,0.3);
    background: linear-gradient(135deg, rgba(202,138,4,0.12), rgba(202,138,4,0.04));
    color: var(--bmx-gold-l); font-size: 0.88rem; font-weight: 600;
    transition: all 0.2s;
}
.bmx-faq-nav-cta:hover { background: rgba(202,138,4,0.2); }

.bmx-faq-group { margin-bottom: 3rem; scroll-margin-top: 6rem; }
.bmx-faq-group-title {
    font-size: 1.4rem; font-weight: 700; margin-bottom: 1.25rem;
    padding-bottom: 0.75rem; border-bottom: 1px solid var(--bmx-line);
}
.bmx-faq-items { display: flex; flex-direction: column; gap: 0.75rem; }
.bmx-faq-item {
    border: 1px solid var(--bmx-line); border-radius: 14px;
    background: var(--bmx-glass); overflow: hidden;
    transition: border-color 0.2s;
}
.bmx-faq-item.is-open { border-color: rgba(202,138,4,0.4); }
.bmx-faq-q {
    width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
    padding: 1.25rem 1.5rem; text-align: left;
    color: var(--bmx-text); font-size: 1rem; font-weight: 600;
    cursor: pointer; transition: color 0.2s;
}
.bmx-faq-q:hover { color: var(--bmx-gold-l); }
.bmx-faq-icon { flex-shrink: 0; color: var(--bmx-gold-l); transition: transform 0.3s ease; }
.bmx-faq-item.is-open .bmx-faq-icon { transform: rotate(45deg); }
.bmx-faq-a { overflow: hidden; }
.bmx-faq-a-inner { padding: 0 1.5rem 1.25rem; color: var(--bmx-muted); line-height: 1.8; }

/* =============================================================
   响应式
   ============================================================= */
@media (max-width: 1024px) {
    .bmx-catalog-hero-grid, .bmx-downloads-hero-grid { grid-template-columns: 1fr; align-items: start; }
    .bmx-downloads-cover { max-width: 720px; }
    .bmx-catalog-stats { max-width: 720px; }
    .bmx-catalog-grid { grid-template-columns: repeat(2, 1fr); }
    .bmx-detail-layout { grid-template-columns: 1fr; }
    .bmx-detail-info { position: static; }
    .bmx-location-grid { grid-template-columns: 1fr; }
    .bmx-about-features, .bmx-qr-grid { grid-template-columns: 1fr 1fr; }
    .bmx-about-flow { grid-template-columns: repeat(2, 1fr); }
    .bmx-faq-layout { grid-template-columns: 1fr; }
    .bmx-faq-sidebar { position: static; }
    .bmx-faq-nav { flex-direction: row; flex-wrap: wrap; }
    .bmx-faq-nav-link { padding: 0.5rem 0.9rem; }
    .bmx-faq-nav-cta { width: 100%; }
}

@media (max-width: 768px) {
    .bmx-page-hero { padding: 7rem 0 2rem; }
    .bmx-catalog-hero, .bmx-downloads-hero { padding-bottom: 2.5rem; }
    .bmx-downloads-cover { border-radius: 20px; }
    .bmx-catalog-stats { grid-template-columns: 1fr; border-radius: 20px; }
    .bmx-catalog-stat-wide { grid-column: auto; }
    .bmx-catalog-toolbar { padding: 1rem; }
    .bmx-catalog-toolbar-head { flex-direction: column; align-items: flex-start; }
    .bmx-catalog-count { text-align: left; min-width: 0; }
    .bmx-filter-group { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 0.2rem; }
    .bmx-filter-chip { flex: 0 0 auto; }
    .bmx-catalog-search { flex: 1 1 100%; }
    .bmx-catalog-grid { grid-template-columns: 1fr; padding: 1rem; }
    .bmx-catalog-empty { margin: 1rem; padding: 3rem 1rem; }
    .bmx-product-list, .bmx-related-grid,
    .bmx-about-features, .bmx-qr-grid { grid-template-columns: 1fr; }
    .bmx-about-flow { grid-template-columns: 1fr; }
    .bmx-dl-card { grid-template-columns: 86px 1fr; gap: 0.85rem; padding: 0.85rem; }
    .bmx-dl-cover { width: 86px; border-radius: 10px; }
    .bmx-dl-cover-badge { left: 0.4rem; bottom: 0.35rem; min-width: 2.35rem; padding: 0.18rem 0.4rem; font-size: 0.58rem; }
    .bmx-dl-action { display: none; }
    .bmx-dl-tabs { gap: 0.4rem; }
    .bmx-dl-tab { padding: 0.5rem 1rem; font-size: 0.82rem; }
    .bmx-location-map iframe { height: 280px; }
    .bmx-qr-img { width: 140px; height: 140px; }
    .bmx-spec-row { grid-template-columns: 1fr; gap: 0.25rem; }
}

/* =============================================================
   Solutions overview page
   ============================================================= */
.bmx-solutions-hero-copy { text-align: left; margin-bottom: 0; }
.bmx-solutions-hero-copy h1 { font-size: clamp(2rem, 5vw, 3.5rem); margin-bottom: 1rem; }
.bmx-solutions-hero-copy p { max-width: 720px; }
.bmx-solutions-hero-stats {
    display: flex; flex-wrap: wrap; gap: 2.5rem; margin-top: 2.5rem;
    padding-top: 2rem; border-top: 1px solid var(--bmx-line);
}
.bmx-solutions-hero-stats div { display: flex; flex-direction: column; gap: 0.25rem; }
.bmx-solutions-hero-stats strong {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 800; line-height: 1;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--bmx-text), var(--bmx-gold-l));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.bmx-solutions-hero-stats span {
    color: var(--bmx-muted); font-size: 0.78rem; letter-spacing: 0.1em;
    text-transform: uppercase;
}

.bmx-solutions-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.bmx-sol-card {
    position: relative; display: flex; flex-direction: column; gap: 1.25rem;
    padding: 2rem; border: 1px solid var(--bmx-line); border-radius: 22px;
    background: var(--bmx-glass); backdrop-filter: blur(14px);
    overflow: hidden;
    transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.bmx-sol-card-bg {
    position: absolute; top: -40%; right: -30%; width: 70%; height: 70%;
    background: radial-gradient(circle, rgba(202,138,4,0.18), transparent 65%);
    opacity: 0; transition: opacity 0.4s ease; pointer-events: none;
}
.bmx-sol-card:hover {
    transform: translateY(-6px); border-color: var(--bmx-gold);
    box-shadow: 0 20px 50px rgba(0,0,0,0.35), 0 0 0 1px rgba(202,138,4,0.15);
}
.bmx-sol-card:hover .bmx-sol-card-bg { opacity: 1; }
.bmx-sol-card-cover {
    width: 100%; aspect-ratio: 16 / 10; border-radius: 14px;
    overflow: hidden; background: rgba(5,6,10,0.5);
}
.bmx-sol-card-cover img {
    width: 100%; height: 100%; object-fit: cover; display: block;
    transition: transform 0.5s ease;
}
.bmx-sol-card:hover .bmx-sol-card-cover img { transform: scale(1.06); }
.bmx-sol-card-ic {
    width: 56px; height: 56px; border-radius: 14px;
    display: grid; place-items: center;
    background: linear-gradient(145deg, rgba(202,138,4,0.2), rgba(202,138,4,0.05));
    border: 1px solid rgba(202,138,4,0.2); color: var(--bmx-gold-l);
}
.bmx-sol-card-ic svg { width: 28px; height: 28px; }
.bmx-sol-card-body { flex: 1; }
.bmx-sol-card-body h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 0.6rem; }
.bmx-sol-card-body p { color: var(--bmx-muted); font-size: 0.92rem; line-height: 1.6; }
.bmx-sol-card-cta {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-size: 0.88rem; font-weight: 600; color: var(--bmx-gold-l);
    transition: gap 0.25s ease;
}
.bmx-sol-card:hover .bmx-sol-card-cta { gap: 0.85rem; }

/* Capability band */
.bmx-solutions-cap {
    display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr);
    gap: 3rem; align-items: center;
}
.bmx-solutions-cap-text .bmx-section-head { text-align: left; margin-bottom: 1.5rem; }
.bmx-solutions-cap-points {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem;
}
.bmx-solutions-cap-pt {
    padding: 1.75rem 1.5rem; border: 1px solid var(--bmx-line);
    border-radius: 18px; background: var(--bmx-glass); backdrop-filter: blur(12px);
    transition: transform 0.3s ease, border-color 0.3s ease;
}
.bmx-solutions-cap-pt:hover { transform: translateY(-4px); border-color: var(--bmx-gold); }
.bmx-solutions-cap-num {
    display: block; font-size: 1.8rem; font-weight: 800; line-height: 1;
    margin-bottom: 0.85rem;
    background: linear-gradient(135deg, var(--bmx-gold), var(--bmx-gold-l));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.bmx-solutions-cap-pt h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.4rem; }
.bmx-solutions-cap-pt p { color: var(--bmx-muted); font-size: 0.85rem; line-height: 1.5; }

/* =============================================================
   Solutions detail page
   ============================================================= */
.bmx-sold-hero { padding-bottom: 4rem; }
.bmx-sold-hero-grid {
    display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: 3rem; align-items: center;
}
.bmx-sold-hero-copy h1 {
    font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1.05;
    margin-bottom: 1.25rem; letter-spacing: -0.03em;
}
.bmx-sold-hero-copy .bmx-sold-lead {
    font-size: 1.1rem; color: var(--bmx-muted); line-height: 1.6;
    max-width: 560px; margin-bottom: 1.75rem;
}
.bmx-sold-hero-ic {
    width: 100%; min-height: 320px; border-radius: 28px;
    display: grid; place-items: center;
    background:
        radial-gradient(circle at 30% 20%, rgba(202,138,4,0.25), transparent 55%),
        radial-gradient(circle at 80% 80%, rgba(77,124,255,0.15), transparent 55%),
        rgba(20,23,33,0.6);
    border: 1px solid rgba(255,255,255,0.08);
    backdrop-filter: blur(16px);
    box-shadow: 0 28px 70px rgba(0,0,0,0.4);
}
.bmx-sold-hero-ic svg { width: 120px; height: 120px; color: var(--bmx-gold-l); }

/* Solutions detail hero media (cover image) */
.bmx-sold-hero-media {
    width: 100%; min-height: 320px; border-radius: 28px; overflow: hidden;
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 28px 70px rgba(0,0,0,0.45);
    position: relative;
}
.bmx-sold-hero-media img {
    width: 100%; height: 100%; min-height: 320px; object-fit: cover; display: block;
}

.bmx-sold-stats {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem;
    margin: 2.5rem 0;
}
.bmx-sold-stat {
    padding: 1.5rem; border: 1px solid var(--bmx-line); border-radius: 16px;
    background: var(--bmx-glass); backdrop-filter: blur(12px);
}
.bmx-sold-stat strong {
    display: block; font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800;
    line-height: 1; margin-bottom: 0.4rem;
    background: linear-gradient(135deg, var(--bmx-text), var(--bmx-gold-l));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.bmx-sold-stat span { color: var(--bmx-muted); font-size: 0.82rem; line-height: 1.4; }

.bmx-sold-body { max-width: 760px; }
.bmx-sold-body h2 { font-size: 1.6rem; font-weight: 700; margin: 2.5rem 0 1.25rem; }
.bmx-sold-body p { color: var(--bmx-muted); line-height: 1.7; font-size: 1rem; }
.bmx-sold-benefits { list-style: none; padding: 0; margin: 1.5rem 0; display: flex; flex-direction: column; gap: 0.85rem; }
.bmx-sold-benefits li {
    display: flex; align-items: flex-start; gap: 0.85rem;
    color: var(--bmx-text); font-size: 0.98rem; line-height: 1.5;
}
.bmx-sold-benefits .check {
    flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%;
    display: grid; place-items: center; margin-top: 1px;
    background: linear-gradient(145deg, var(--bmx-gold), var(--bmx-gold-l));
    color: #1a1408;
}
.bmx-sold-benefits .check svg { width: 14px; height: 14px; stroke-width: 3.5; }

.bmx-sold-related-head {
    display: flex; align-items: baseline; justify-content: space-between;
    gap: 1rem; margin-bottom: 1.5rem; flex-wrap: wrap;
}
.bmx-sold-related-head h2 { font-size: 1.4rem; font-weight: 700; margin: 0; }

.bmx-sold-others {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
}
.bmx-sold-other {
    padding: 1.25rem; border: 1px solid var(--bmx-line); border-radius: 14px;
    background: var(--bmx-glass); backdrop-filter: blur(10px);
    display: flex; flex-direction: column; gap: 0.5rem;
    transition: transform 0.3s ease, border-color 0.3s ease;
}
.bmx-sold-other:hover { transform: translateY(-3px); border-color: var(--bmx-gold); }
.bmx-sold-other-ic {
    width: 36px; height: 36px; border-radius: 9px;
    display: grid; place-items: center;
    background: linear-gradient(145deg, rgba(202,138,4,0.18), rgba(202,138,4,0.04));
    border: 1px solid rgba(202,138,4,0.18); color: var(--bmx-gold-l);
}
.bmx-sold-other-ic svg { width: 18px; height: 18px; }
.bmx-sold-other-cover {
    width: 100%; aspect-ratio: 16 / 10; border-radius: 10px; overflow: hidden;
    background: rgba(5,6,10,0.5); margin-bottom: 0.25rem;
}
.bmx-sold-other-cover img {
    width: 100%; height: 100%; object-fit: cover; display: block;
    transition: transform 0.4s ease;
}
.bmx-sold-other:hover .bmx-sold-other-cover img { transform: scale(1.06); }
.bmx-sold-other h4 { font-size: 0.92rem; font-weight: 600; }
.bmx-sold-other p { font-size: 0.78rem; color: var(--bmx-muted); }

@media (max-width: 1024px) {
    .bmx-solutions-grid { grid-template-columns: repeat(2, 1fr); }
    .bmx-solutions-cap { grid-template-columns: 1fr; gap: 2rem; }
    .bmx-sold-hero-grid { grid-template-columns: 1fr; gap: 2rem; }
    .bmx-sold-hero-ic { min-height: 240px; }
    .bmx-sold-others { grid-template-columns: repeat(2, 1fr); }
    .bmx-detail-cta { flex-direction: column; }
    .bmx-detail-cta .bmx-btn { justify-content: center; }
}

@media (max-width: 768px) {
    .bmx-solutions-grid { grid-template-columns: 1fr; }
    .bmx-solutions-cap-points { grid-template-columns: 1fr; }
    .bmx-sold-stats { grid-template-columns: 1fr; }
    .bmx-sold-others { grid-template-columns: 1fr; }
    .bmx-news-grid { grid-template-columns: 1fr; }
}

/* =============================================================
   新闻 / Insights
   ============================================================= */
.bmx-news-card { display: flex; flex-direction: column; }
.bmx-news-noimg {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    color: var(--bmx-gold-l); opacity: 0.5;
    background: linear-gradient(135deg, var(--bmx-bg-2), #16181f);
}
.bmx-product-card-body {
    padding: 1.25rem 1.5rem;
    display: flex; flex-direction: column; gap: 0.5rem; flex: 1;
}
.bmx-news-date {
    font-size: 0.75rem; font-weight: 700; letter-spacing: 0.04em;
    text-transform: uppercase; color: var(--bmx-gold-l);
}
.bmx-news-card h3 { font-size: 1.1rem; font-weight: 800; color: var(--bmx-text); }
.bmx-news-card p {
    color: var(--bmx-text-mut); font-size: 0.92rem; line-height: 1.55;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.bmx-news-read {
    margin-top: auto; padding-top: 0.5rem;
    display: inline-flex; align-items: center; gap: 0.35rem;
    font-size: 0.85rem; font-weight: 700; color: var(--bmx-gold);
}

/* 新闻详情 */
.bmx-news-detail-hero { padding-bottom: 1rem; }
.bmx-news-detail-head h1 {
    font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 900;
    color: var(--bmx-text); margin: 0.5rem 0 0.75rem;
}
.bmx-news-meta {
    display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap;
    color: var(--bmx-text-mut); font-size: 0.88rem;
}
.bmx-news-cover-img {
    border-radius: 16px; overflow: hidden; margin-top: 1rem;
    aspect-ratio: 21/9;
}
.bmx-news-cover-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.bmx-news-prose { max-width: 760px; }
.bmx-news-lead {
    font-size: 1.15rem; line-height: 1.7; color: var(--bmx-text);
    font-weight: 500; margin-bottom: 1.5rem;
}
.bmx-news-content { color: var(--bmx-text); line-height: 1.75; }
.bmx-news-content :where(p, ul, ol) { margin: 0 0 1rem; }
.bmx-news-content h2 { font-size: 1.4rem; font-weight: 800; margin: 1.5rem 0 0.75rem; }
.bmx-news-content h3 { font-size: 1.15rem; font-weight: 700; margin: 1.25rem 0 0.5rem; }
.bmx-news-content img { max-width: 100%; height: auto; border-radius: 10px; margin: 1rem 0; }
.bmx-news-content a { color: var(--bmx-gold); text-decoration: underline; }

/* 分页 */
.bmx-pagination { font-family: inherit; }
.bmx-page-link, .bmx-page-current {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 2.4rem; height: 2.4rem; padding: 0 0.6rem;
    border-radius: 10px; font-weight: 700; font-size: 0.9rem;
    transition: all 0.2s ease;
}
.bmx-page-link {
    background: var(--bmx-card, #16181f); color: var(--bmx-text-mut);
    border: 1px solid rgba(255,255,255,0.06);
}
.bmx-page-link:hover { background: var(--bmx-gold); color: #0c0e16; }
.bmx-page-current { background: var(--bmx-gold); color: #0c0e16; }

/* 尊重 reduced-motion */
@media (prefers-reduced-motion: reduce) {
    .bmx-product-card:hover .bmx-product-img img,
    .bmx-catalog-card,
    .bmx-filter-chip,
    .bmx-faq-icon,
    .bmx-about-feature,
    .bmx-qr-card,
    .bmx-dl-card,
    .bmx-card { transition: none !important; transform: none !important; }
    .bmx-card:hover { transform: none !important; }
}