:root {
            --bg: var(--st-canvas, #0a0f18);
            --bg-card: var(--st-card-bg, rgba(15, 23, 42, 0.42));
            --glass-border: var(--st-card-border, rgba(255, 255, 255, 0.12));
            --text-main: var(--st-text, #e8ecf4);
            --text-muted: var(--st-text-muted, #94a3b8);
            --accent: var(--st-accent, #7dd3fc);
            --accent-soft: var(--st-accent-soft, rgba(125,211,252,0.14));
            --border-subtle: var(--st-surface-border, rgba(255,255,255,0.14));
            --radius-lg: 20px;
            --radius-full: 999px;
            --glass-blur: var(--st-glass-blur, 24px);
            --glass-frost: var(--st-glass-frost, blur(24px) saturate(1.42));
            --glass-frost-md: var(--st-glass-frost-md, blur(18px) saturate(1.38));
            --glass-frost-widget: var(--st-glass-frost-md, blur(16px) saturate(1.36));
            --glass-frost-sm: var(--st-glass-frost-sm, blur(14px) saturate(1.34));
            --glass-frost-xs: var(--st-glass-frost-xs, blur(12px) saturate(1.32));
            --glass-inset: var(--st-glass-inset, inset 0 1px 0 rgba(255, 255, 255, 0.08));
            --shadow-soft: var(--st-shadow, 0 24px 52px rgba(2, 8, 24, 0.55)), var(--glass-inset);
        }
        .theme-light .card {
            background: var(--st-card-bg, rgba(255, 255, 255, 0.12));
            border-color: var(--st-card-border, var(--glass-border));
            box-shadow: var(--st-shadow, var(--shadow-soft));
        }
        html[class*="site-theme-"] .card {
            -webkit-backdrop-filter: var(--st-glass-frost, var(--glass-frost));
            backdrop-filter: var(--st-glass-frost, var(--glass-frost));
        }
        html.site-theme-dark .card,
        html.site-theme-muted .card {
            -webkit-backdrop-filter: none;
            backdrop-filter: none;
        }
        .theme-light .top-nav-item {
            color: #475569;
        }
        .theme-light .top-nav-item.active {
            color: #0f172a;
            box-shadow: 0 0 0 1px rgba(255,255,255,0.12), inset 0 1px 0 rgba(255,255,255,0.3);
            background: rgba(255, 255, 255, 0.15);
            -webkit-backdrop-filter: var(--glass-frost-sm);
            backdrop-filter: var(--glass-frost-sm);
        }
        .theme-light .announcement-inner {
            background: rgba(255, 255, 255, 0.1);
            -webkit-backdrop-filter: var(--glass-frost-widget);
            backdrop-filter: var(--glass-frost-widget);
            border-color: rgba(255,255,255,0.17);
            color: #475569;
            border-style: solid;
            border-width: 1px;
        }
        .theme-light .announcement-icon {
            background: radial-gradient(circle at 30% 0%, rgba(99,102,241,0.1) 0%, rgba(191,219,254,0.24) 100%);
            color: #3730a3;
        }
        .theme-light .category {
            background: rgba(255, 255, 255, 0.09);
            -webkit-backdrop-filter: var(--glass-frost-md);
            backdrop-filter: var(--glass-frost-md);
            border-color: rgba(255,255,255,0.19);
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.24);
        }
        .theme-light .bottom-nav-inner {
            background: rgba(255, 255, 255, 0.13);
            -webkit-backdrop-filter: var(--glass-frost-md);
            backdrop-filter: var(--glass-frost-md);
            border-color: var(--glass-border);
            box-shadow: 0 16px 34px rgba(60, 80, 120, 0.08), inset 0 1px 0 rgba(255,255,255,0.26);
        }
        .theme-light .icon-button {
            background: rgba(255, 255, 255, 0.18);
            border-color: rgba(15,23,42,0.08);
            color: #0f172a;
            box-shadow: 0 4px 14px rgba(60,90,140,0.08);
            -webkit-backdrop-filter: var(--glass-frost-xs);
            backdrop-filter: var(--glass-frost-xs);
        }
        .theme-light .nav-trigger {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(15,23,42,0.1);
            color: #0f172a;
            box-shadow: 0 4px 14px rgba(60,90,140,0.08);
            -webkit-backdrop-filter: var(--glass-frost-xs);
            backdrop-filter: var(--glass-frost-xs);
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html {
            height: 100%;
        }
        html, body {
            min-height: 100%;
            font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            color: var(--text-main);
        }
        body {
            height: 100%;
            background: transparent;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
            padding: 16px;
            padding-bottom: 16px;
        }
        .page {
            max-width: 960px;
            margin: 0 auto;
            width: 100%;
            margin-bottom: 0;
        }
        .card {
            background: var(--bg-card);
            -webkit-backdrop-filter: var(--glass-frost);
            backdrop-filter: var(--glass-frost);
            border-radius: 28px;
            border: 1px solid var(--glass-border);
            box-shadow: var(--shadow-soft);
            padding: 20px 18px 18px;
        }
        @media (min-width: 640px) {
            body { padding: 32px 24px 24px; }
            .card { padding: 24px 22px 22px; }
            .bottom-nav-spacer { height: calc(126px + env(safe-area-inset-bottom, 0px)); }
        }
        .header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 16px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .brand-logo {
            width: 32px;
            height: 32px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(125,211,252,0.95) 0%, rgba(99,102,241,0.85) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 18px;
            box-shadow: 0 12px 28px rgba(56,129,246,0.35), inset 0 1px 0 rgba(255,255,255,0.35);
            border: 1px solid rgba(255,255,255,0.25);
        }
        .brand-text {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .brand-title {
            font-weight: 600;
            letter-spacing: 0.02em;
            font-size: 16px;
        }
        .brand-sub {
            font-size: 11px;
            color: var(--text-muted);
        }
        .header-actions {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .icon-button {
            width: 30px;
            height: 30px;
            border-radius: 999px;
            border: 1px solid rgba(255,255,255,0.18);
            background: rgba(255,255,255,0.08);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-main);
            cursor: pointer;
            transition: all .15s ease-out;
        }
        .icon-button:hover {
            transform: translateY(-1px);
            box-shadow: 0 10px 18px rgba(15,23,42,0.7);
            border-color: rgba(56,189,248,0.7);
        }
        .icon-button i {
            font-size: 14px;
        }
        .nav-trigger {
            padding: 4px 10px;
            border-radius: 999px;
            border: 1px solid rgba(255,255,255,0.18);
            background: rgba(255,255,255,0.08);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-main);
            cursor: pointer;
            transition: all .15s ease-out;
        }
        .nav-trigger:hover {
            transform: translateY(-1px);
            box-shadow: 0 10px 18px rgba(15,23,42,0.7);
            border-color: rgba(56,189,248,0.7);
        }
        .nav-trigger i {
            font-size: 13px;
        }
        .top-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding-top: 8px;
        }
        .top-nav-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 10px;
            border-radius: 999px;
            font-size: 12px;
            color: var(--text-muted);
            text-decoration: none;
            transition: all 0.15s ease-out;
            position: relative;
            overflow: hidden;
        }
        .top-nav-item span {
            position: relative;
            z-index: 1;
        }
        .top-nav-item::before {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at top, rgba(56,189,248,0.18), transparent 55%);
            opacity: 0;
            transition: opacity 0.18s ease-out;
        }
        .top-nav-item:hover::before {
            opacity: 1;
        }
        .top-nav-item:hover {
            color: #e5f7ff;
            transform: translateY(-1px);
        }
        .top-nav-item.active {
            background: linear-gradient(135deg, rgba(56,189,248,0.17), rgba(56,189,248,0.04));
            color: #e0f2fe;
            box-shadow: 0 0 0 1px rgba(56,189,248,0.45);
        }
        .top-nav-icon {
            width: 16px;
            height: 16px;
            border-radius: 999px;
            background: rgba(15,23,42,0.9);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .top-nav-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .top-nav-icon i {
            font-size: 11px;
        }
        .category-top-nav {
            margin-top: 12px;
            display: flex;
            gap: 8px;
            overflow-x: auto;
            padding-bottom: 2px;
        }
        .category-top-nav::-webkit-scrollbar { height: 4px; }
        .category-top-nav::-webkit-scrollbar-thumb { background: rgba(148,163,184,.22); border-radius: 999px; }
        .category-top-link {
            white-space: nowrap;
            text-decoration: none;
            color: var(--text-muted);
            font-size: 12px;
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: 999px;
            padding: 5px 10px;
            background: rgba(15,23,42,0.35);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
        }
        .category-top-link.active {
            color: #e0f2fe;
            border-color: rgba(125,211,252,0.45);
            background: rgba(56,189,248,0.12);
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.08);
        }
        .theme-light .category-top-link {
            color: #475569;
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255,255,255,0.17);
            -webkit-backdrop-filter: var(--glass-frost-xs);
            backdrop-filter: var(--glass-frost-xs);
        }
        .theme-light .category-top-link.active {
            color: #0f172a;
            border-color: rgba(99,102,241,0.28);
            background: rgba(255,255,255,0.2);
            box-shadow: 0 2px 12px rgba(80,90,140,0.06);
            -webkit-backdrop-filter: var(--glass-frost-xs);
            backdrop-filter: var(--glass-frost-xs);
        }

        .announcement {
            margin-top: 14px;
            margin-bottom: 10px;
        }
        .announcement-inner {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 10px;
            border-radius: 999px;
            background: rgba(15,23,42,0.55);
            -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
            border: 1px dashed rgba(255,255,255,0.16);
            color: var(--text-muted);
            font-size: 12px;
            max-width: 100%;
        }
        .announcement-icon {
            width: 22px;
            height: 22px;
            border-radius: 999px;
            background: radial-gradient(circle at 0 0, rgba(56,189,248,0.6) 0, rgba(56,189,248,0.08) 60%, transparent 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #e0f2fe;
        }
        .announcement-text {
            position: relative;
            overflow: hidden;
        }
        .announcement-text-inner {
            display: inline-block;
            white-space: nowrap;
        }
        .announcement-text.marquee .announcement-text-inner {
            animation: marquee var(--marquee-duration, 15s) linear infinite;
        }
        @keyframes marquee {
            from {
                transform: translateX(0);
            }
            to {
                transform: translateX(calc(var(--marquee-distance, 0) * -1px));
            }
        }

        .categories {
            margin-top: 16px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .category {
            background: var(--st-surface-bg, rgba(15, 23, 42, 0.38));
            -webkit-backdrop-filter: var(--st-glass-frost-md, var(--glass-frost-md));
            backdrop-filter: var(--st-glass-frost-md, var(--glass-frost-md));
            border-radius: 22px;
            padding: 12px 12px 10px;
            border: 1px solid var(--st-surface-border, rgba(255,255,255,0.1));
            box-shadow: var(--glass-inset);
        }
        html.site-theme-dark .category,
        html.site-theme-muted .category {
            -webkit-backdrop-filter: none;
            backdrop-filter: none;
        }
        .category-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            margin-bottom: 8px;
        }
        .category-title {
            font-size: 13px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .category-title-pill {
            padding: 4px 9px;
            border-radius: 999px;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.14);
            -webkit-backdrop-filter: blur(8px);
            backdrop-filter: blur(8px);
        }
        .category-count {
            font-size: 11px;
            color: var(--text-muted);
        }
        .items-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0,1fr));
            gap: 8px;
        }
        @media (min-width: 640px) {
            .category {
                padding: 12px 14px 12px;
            }
            .items-grid {
                grid-template-columns: repeat(3, minmax(0,1fr));
            }
        }
        .product-card {
            border-radius: 18px;
            background: rgba(30, 41, 59, 0.26);
            -webkit-backdrop-filter: blur(18px);
            backdrop-filter: blur(18px);
            border: 1px solid rgba(255, 255, 255, 0.16);
            box-shadow:
                inset 0 1px 0 rgba(255, 255, 255, 0.08),
                0 0 0 1px rgba(0, 0, 0, 0.12);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            min-height: 158px;
            transition: border-color .14s ease-out, box-shadow .14s ease-out, transform .14s ease-out;
        }
        .product-card:hover {
            transform: translateY(-1px);
            border-color: rgba(186, 230, 253, 0.32);
            box-shadow:
                inset 0 1px 0 rgba(255, 255, 255, 0.12),
                0 0 0 1px rgba(125, 211, 252, 0.15),
                0 16px 36px rgba(2, 8, 24, 0.4);
        }
        .product-card-media {
            height: 88px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            background: linear-gradient(165deg, rgba(30,41,59,0.26), rgba(15,23,42,0.3));
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 8px;
        }
        .product-thumb {
            width: 62px;
            height: 62px;
            border-radius: 16px;
            background: #ffffff;
            border: 1px solid rgba(148,163,184,0.22);
            box-shadow: 0 8px 18px rgba(2,6,23,0.38);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            transition: transform .14s ease-out, box-shadow .14s ease-out;
        }
        .product-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .product-thumb i {
            font-size: 21px;
            color: #64748b;
        }
        .product-card:hover .product-thumb {
            transform: translateY(-1px);
            box-shadow: 0 12px 24px rgba(2,6,23,0.48);
        }
        .product-card-body {
            padding: 7px 8px 8px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            flex: 1;
        }
        .product-card-name {
            font-size: 12px;
            color: var(--text-main);
            line-height: 1.3;
            min-height: 30px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            text-align: center;
            font-weight: 600;
        }
        .theme-light .product-card-name {
            color: var(--product-name-custom-color, var(--text-main));
        }
        .product-name-left .product-card-name { text-align: center; }
        .product-name-center .product-card-name { text-align: center; }
        .product-name-right .product-card-name { text-align: center; }
        .product-name-normal .product-card-name { font-weight: 700; }
        .product-name-bold .product-card-name { font-weight: 700; }
        .product-density-compact .items-grid { gap: 6px; }
        .product-density-compact .product-card { min-height: 150px; border-radius: 12px; }
        .product-density-compact .product-card-media { height: 86px; padding: 8px; }
        .product-density-compact .product-thumb { width: 56px; height: 56px; border-radius: 14px; }
        .product-density-compact .product-card-body { padding: 7px; gap: 6px; }
        .product-density-compact .product-card-name { font-size: 11px; min-height: 28px; }
        .product-density-compact .product-card-btn { height: 28px; font-size: 11px; }
        .product-card-btn {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 5px;
            height: 28px;
            width: auto;
            max-width: 100%;
            padding: 0 10px;
            border-radius: 999px;
            text-decoration: none;
            font-size: 11px;
            white-space: nowrap;
            font-weight: 600;
            color: var(--st-product-btn-fg, #e0f2fe);
            background: var(--st-product-btn-bg, linear-gradient(135deg, rgba(56, 189, 248, 0.28), rgba(14, 165, 233, 0.22)));
            border: 1px solid var(--st-product-btn-border, rgba(56, 189, 248, 0.45));
            box-shadow: var(--st-product-btn-shadow, none);
        }
        .product-card-btn:hover {
            background: var(--st-product-btn-bg-hover, linear-gradient(135deg, rgba(56, 189, 248, 0.36), rgba(14, 165, 233, 0.3)));
            color: var(--st-product-btn-fg-hover, var(--st-product-btn-fg, #e0f2fe));
        }
        .theme-light .product-card {
            background: rgba(255, 255, 255, 0.09);
            -webkit-backdrop-filter: var(--glass-frost-md);
            backdrop-filter: var(--glass-frost-md);
            border: 1px solid rgba(255,255,255,0.17);
            box-shadow:
                inset 0 1px 0 rgba(255, 255, 255, 0.22),
                0 1px 3px rgba(15, 23, 42, 0.03),
                0 0 0 1px rgba(255,255,255,0.045);
        }
        .theme-light .product-card-media {
            background: linear-gradient(165deg, rgba(255,255,255,0.07), rgba(248,250,252,0.12));
            border-bottom: 1px solid rgba(255,255,255,0.12);
        }
        .theme-light .product-card:hover {
            border-color: rgba(59,130,246, 0.28);
            box-shadow:
                inset 0 1px 0 rgba(255, 255, 255, 0.3),
                0 2px 12px rgba(59, 130, 246, 0.06),
                0 0 0 1px rgba(96,165,250, 0.16);
        }
        .theme-light .product-thumb {
            background: rgba(255, 255, 255, 0.24);
            -webkit-backdrop-filter: var(--glass-frost-xs);
            backdrop-filter: var(--glass-frost-xs);
            border-color: rgba(255,255,255,0.14);
            box-shadow: 0 10px 24px rgba(80,90,140,0.06);
        }
        .theme-light .product-thumb i {
            color: #475569;
        }
        /* 白天默认：品牌蓝按钮（勿用深灰黑底，避免「默认样式」过暗） */
        html.theme-light {
            --st-product-btn-fg: #ffffff;
            --st-product-btn-bg: linear-gradient(135deg, #3b82f6, #2563eb);
            --st-product-btn-bg-hover: linear-gradient(135deg, #2563eb, #1d4ed8);
            --st-product-btn-border: rgba(37, 99, 235, 0.35);
            --st-product-btn-shadow: 0 4px 14px rgba(59, 130, 246, 0.22);
            --st-product-btn-fg-hover: #ffffff;
        }
        .item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 7px 8px;
            border-radius: 14px;
            background: rgba(30, 41, 59, 0.42);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow:
                inset 0 1px 0 rgba(255, 255, 255, 0.06),
                0 0 0 1px rgba(0, 0, 0, 0.1);
            text-decoration: none;
            color: var(--text-main);
            font-size: 12px;
            transition: all 0.14s ease-out;
        }
        .item:hover {
            transform: translateY(-1px);
            border-color: rgba(125, 211, 252, 0.3);
            box-shadow:
                inset 0 1px 0 rgba(255, 255, 255, 0.1),
                0 0 0 1px rgba(56, 189, 248, 0.12),
                0 12px 24px rgba(15,23,42,0.45);
        }
        .item-icon {
            width: 26px;
            height: 26px;
            border-radius: 10px;
            background: radial-gradient(circle at 0 0, rgba(56,189,248,0.5), rgba(15,23,42,0.9));
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            flex-shrink: 0;
        }
        .item-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .item-name {
            flex: 1;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .item-arrow {
            width: 18px;
            height: 18px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            color: var(--accent);
            background: var(--accent-soft);
            border: 1px solid rgba(56,189,248,0.35);
            flex-shrink: 0;
            transition: transform .14s ease-out, background .14s ease-out;
        }
        .item:hover .item-arrow {
            transform: translateX(1px);
            background: rgba(56,189,248,0.18);
        }
        .theme-light .item-arrow {
            border-color: rgba(255,255,255,0.13);
            background: rgba(255,255,255,0.18);
            -webkit-backdrop-filter: var(--glass-frost-xs);
            backdrop-filter: var(--glass-frost-xs);
            color: #0f172a;
        }
        .theme-light article.category .item {
            background: rgba(255, 255, 255, 0.09);
            border: 1px solid rgba(255,255,255,0.17);
            box-shadow:
                inset 0 1px 0 rgba(255, 255, 255, 0.22),
                0 1px 2px rgba(15, 23, 42, 0.03),
                0 0 0 1px rgba(255,255,255,0.045);
            -webkit-backdrop-filter: var(--glass-frost-widget);
            backdrop-filter: var(--glass-frost-widget);
        }
        .theme-light article.category .item:hover {
            border-color: rgba(59,130,246, 0.28);
            box-shadow:
                inset 0 1px 0 rgba(255, 255, 255, 0.3),
                0 2px 12px rgba(59, 130, 246, 0.06),
                0 0 0 1px rgba(96,165,250, 0.15);
        }

        .footer-note {
            margin-top: 12px;
            font-size: 11px;
            color: var(--text-muted);
            text-align: center;
        }
        .footer-note a {
            color: inherit;
            text-decoration: none;
        }
        .footer-note a:hover {
            color: var(--accent);
        }
        .custom-footer {
            max-width: 960px;
            margin: 10px auto 0;
            width: 100%;
            color: var(--text-muted);
            text-align: center;
            font-size: 12px;
        }

        .bottom-nav-spacer {
            height: calc(118px + env(safe-area-inset-bottom, 0px));
            flex-shrink: 0;
        }
        .bottom-nav {
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 50;
            padding: 8px 12px calc(10px + env(safe-area-inset-bottom, 0px));
            pointer-events: none;
        }
        .bottom-nav-inner {
            max-width: 480px;
            margin: 0 auto;
            background: rgba(15, 23, 42, 0.45);
            -webkit-backdrop-filter: var(--glass-frost);
            backdrop-filter: var(--glass-frost);
            border-radius: 999px;
            border: 1px solid rgba(255,255,255,0.12);
            box-shadow: 0 22px 48px rgba(2, 8, 24, 0.55), var(--glass-inset);
            padding: 6px 10px;
            display: flex;
            align-items: center;
            justify-content: space-around;
            pointer-events: auto;
        }
        .bottom-nav-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            text-decoration: none;
            color: var(--text-muted);
            font-size: 10px;
        }
        .bottom-nav-item-icon {
            width: 24px;
            height: 24px;
            border-radius: 999px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255,255,255,0.08);
            color: #cbd5f5;
            margin-bottom: 1px;
            border: 1px solid rgba(255,255,255,0.08);
        }
        .bottom-nav-item.active .bottom-nav-item-icon {
            background: linear-gradient(135deg, rgba(125,211,252,0.85), rgba(56,189,248,0.65));
            color: #0f172a;
            border-color: rgba(255,255,255,0.2);
        }
        .bottom-nav-item.active {
            color: #e5f7ff;
        }
        .theme-light .bottom-nav-item {
            color: #64748b;
        }
        .theme-light .bottom-nav-item.active .bottom-nav-item-icon {
            background: #111827;
            color: #f8fafc;
            border-color: rgba(15,23,42,0.35);
            box-shadow: 0 6px 18px rgba(15,23,42,0.22);
        }
        .theme-light .bottom-nav-item.active {
            color: #111827;
        }
        .theme-light .bottom-nav-item-icon {
            background: rgba(255,255,255,0.2);
            color: #0f172a;
            border-color: rgba(255,255,255,0.14);
            -webkit-backdrop-filter: var(--glass-frost-xs);
            backdrop-filter: var(--glass-frost-xs);
        }
        /* PC 端放大底部导航整体宽度，避免过短 */
        @media (min-width: 768px) {
            .bottom-nav-inner {
                max-width: 720px;
            }
        }
        .theme-light .category-title-pill,
        .theme-light .item-name,
        .theme-light .category-count {
            color: #111827;
        }
        .theme-light .category-title-pill {
            background: rgba(255, 255, 255, 0.17);
            border-color: rgba(255,255,255,0.14);
            -webkit-backdrop-filter: var(--glass-frost-sm);
            backdrop-filter: var(--glass-frost-sm);
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.28);
        }
        /* 抽屉导航 */
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(8,15,28,0.55);
            -webkit-backdrop-filter: blur(8px);
            backdrop-filter: blur(8px);
            opacity: 0;
            pointer-events: none;
            transition: opacity .18s ease-out;
            z-index: 40;
        }
        .drawer-panel {
            position: fixed;
            top: 0;
            bottom: 0;
            left: 0;
            width: 260px;
            max-width: 80%;
            background: rgba(15,23,42,0.78);
            -webkit-backdrop-filter: blur(28px);
            backdrop-filter: blur(28px);
            border-right: 1px solid rgba(255,255,255,0.12);
            box-shadow: 16px 0 44px rgba(2, 8, 24, 0.5);
            transform: translateX(-100%);
            transition: transform .22s ease-out;
            z-index: 41;
            padding: 14px 14px 16px;
        }
        .drawer-open .drawer-overlay {
            opacity: 1;
            pointer-events: auto;
        }
        .drawer-open .drawer-panel {
            transform: translateX(0);
        }
        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            margin-bottom: 10px;
        }
        .drawer-title {
            font-size: 13px;
            font-weight: 500;
            color: #f3f4f6;
        }
        .drawer-close {
            width: 24px;
            height: 24px;
            border-radius: 999px;
            border: 1px solid rgba(71,85,105,0.95);
            background: rgba(15,23,42,0.95);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #cbd5e1;
            cursor: pointer;
            font-size: 12px;
        }
        .drawer-section-title {
            margin-top: 6px;
            margin-bottom: 4px;
            font-size: 11px;
            color: #94a3b8;
            text-transform: uppercase;
            letter-spacing: .08em;
        }
        .drawer-nav-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .drawer-nav-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 6px 6px;
            border-radius: 10px;
            text-decoration: none;
            color: #e5e7eb;
            font-size: 13px;
            margin-bottom: 2px;
        }
        .drawer-nav-item:hover {
            background: rgba(30,41,59,0.95);
            color: #f8fafc;
        }
        .drawer-nav-icon {
            width: 22px;
            height: 22px;
            border-radius: 999px;
            background: rgba(30,41,59,0.95);
            color: #bae6fd;
            border: 1px solid rgba(71,85,105,0.85);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .drawer-nav-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        /* 白天模式下抽屉导航配色 */
        .theme-light .drawer-overlay {
            background: rgba(230,236,246,0.34);
            -webkit-backdrop-filter: blur(18px) saturate(1.35);
            backdrop-filter: blur(18px) saturate(1.35);
        }
        .theme-light .drawer-panel {
            background: rgba(255, 255, 255, 0.17);
            -webkit-backdrop-filter: var(--glass-frost-md);
            backdrop-filter: var(--glass-frost-md);
            border-right: 1px solid rgba(255,255,255,0.21);
            box-shadow: 16px 0 40px rgba(80,90,140,0.07);
        }
        .theme-light .drawer-title {
            color: #111827;
        }
        .theme-light .drawer-close {
            background: rgba(255,255,255,0.22);
            -webkit-backdrop-filter: var(--glass-frost-xs);
            backdrop-filter: var(--glass-frost-xs);
            border-color: rgba(255,255,255,0.19);
            color: #374151;
        }
        .theme-light .drawer-section-title {
            color: #6b7280;
        }
        .theme-light .drawer-nav-item {
            color: #111827;
        }
        .theme-light .drawer-nav-item:hover {
            background: rgba(59,130,246,0.1);
        }
        .theme-light .drawer-nav-icon {
            background: rgba(238,242,255,0.32);
            -webkit-backdrop-filter: var(--glass-frost-xs);
            backdrop-filter: var(--glass-frost-xs);
            color: #1d4ed8;
            border: 1px solid rgba(255,255,255,0.15);
        }

        .home-popup-overlay {
            position: fixed;
            inset: 0;
            background: rgba(6, 12, 26, 0.52);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            display: none;
            align-items: center;
            justify-content: center;
            padding: 18px;
            z-index: 120;
        }
        .home-popup-overlay.show {
            display: flex;
            animation: popupFade .2s ease-out;
        }
        @keyframes popupFade {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        .home-popup-card {
            width: min(94vw, 480px);
            border-radius: 26px;
            border: 1px solid rgba(255,255,255,0.14);
            background: rgba(15,23,42,0.78);
            -webkit-backdrop-filter: blur(28px);
            backdrop-filter: blur(28px);
            box-shadow: 0 32px 64px rgba(2,8,24,0.55), inset 0 1px 0 rgba(255,255,255,0.06);
            padding: 16px 16px 14px;
            transform: translateY(8px) scale(.98);
            animation: popupIn .24s ease-out forwards;
        }
        @keyframes popupIn {
            to { transform: translateY(0) scale(1); }
        }
        .home-popup-top {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 10px;
            margin-bottom: 10px;
        }
        .home-popup-title {
            font-size: 16px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
            color: #e0f2fe;
            line-height: 1.35;
        }
        .home-popup-title i {
            color: #38bdf8;
        }
        .home-popup-close {
            width: 28px;
            height: 28px;
            border-radius: 999px;
            border: 1px solid rgba(148,163,184,.35);
            background: rgba(15,23,42,.72);
            color: #cbd5e1;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            flex-shrink: 0;
        }
        .home-popup-close:hover {
            border-color: rgba(56,189,248,.6);
            color: #e0f2fe;
        }
        .home-popup-content {
            font-size: 14px;
            color: #cbd5e1;
            line-height: 1.78;
            margin-bottom: 14px;
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.12);
            border-radius: 16px;
            padding: 12px;
            max-height: 52vh;
            overflow: auto;
        }
        .home-popup-content p { margin: 0 0 .7em; }
        .home-popup-content p:last-child { margin-bottom: 0; }
        .home-popup-content img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
        }
        .home-popup-actions {
            display: flex;
            justify-content: center;
        }
        .home-popup-btn {
            min-width: 140px;
            height: 38px;
            border-radius: 999px;
            border: 1px solid rgba(56,189,248,0.48);
            background: linear-gradient(135deg, rgba(56,189,248,.34), rgba(14,165,233,.26));
            color: #e0f2fe;
            padding: 0 18px;
            font-size: 13px;
            font-weight: 700;
            cursor: pointer;
            letter-spacing: .01em;
        }
        .home-popup-btn:hover {
            filter: brightness(1.06);
            transform: translateY(-1px);
        }
        .theme-light .home-popup-overlay {
            background: rgba(220,228,240,0.36);
            backdrop-filter: blur(20px) saturate(1.4);
            -webkit-backdrop-filter: blur(20px) saturate(1.4);
        }
        .theme-light .home-popup-card {
            background: rgba(255, 255, 255, 0.18);
            -webkit-backdrop-filter: var(--glass-frost);
            backdrop-filter: var(--glass-frost);
            border-color: var(--glass-border);
            box-shadow: 0 24px 48px rgba(80,100,140,0.08), inset 0 1px 0 rgba(255,255,255,0.28);
        }
        .theme-light .home-popup-title {
            color: #1f2937;
        }
        .theme-light .home-popup-title i {
            color: #2563eb;
        }
        .theme-light .home-popup-close {
            background: rgba(255,255,255,0.24);
            -webkit-backdrop-filter: var(--glass-frost-xs);
            backdrop-filter: var(--glass-frost-xs);
            color: #475569;
            border-color: rgba(255,255,255,0.17);
        }
        .theme-light .home-popup-content {
            color: #475569;
            background: rgba(255,255,255,0.16);
            border-color: rgba(255,255,255,0.14);
            -webkit-backdrop-filter: var(--glass-frost-sm);
            backdrop-filter: var(--glass-frost-sm);
        }
        .theme-light .home-popup-btn {
            color: #fafafa;
            background: #111827;
            border-color: rgba(15,23,42,0.2);
            box-shadow: 0 8px 22px rgba(15,23,42,0.15);
        }

/* ========= 首页性能：列表项用半透明实底，主壳层保留玻璃模糊 ========= */
.categories > .category {
    content-visibility: auto;
    contain-intrinsic-size: 280px;
}

.product-card,
.item,
.category-top-link,
.category-title-pill,
.bottom-nav-item-icon {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
}

.product-card {
    background: rgba(30, 41, 59, 0.52);
    box-shadow: var(--glass-inset), 0 0 0 1px rgba(0, 0, 0, 0.12);
}
.item {
    background: rgba(30, 41, 59, 0.55);
    box-shadow: var(--glass-inset), 0 0 0 1px rgba(0, 0, 0, 0.1);
}
.category-top-link {
    background: rgba(15, 23, 42, 0.52);
}
.category-title-pill {
    background: rgba(255, 255, 255, 0.1);
    box-shadow: var(--glass-inset);
}

.theme-light .product-card {
    background: rgba(255, 255, 255, 0.22);
    box-shadow: var(--glass-inset), 0 1px 3px rgba(15, 23, 42, 0.03);
}
.theme-light article.category .item {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: var(--glass-inset);
}
.theme-light .category-top-link {
    background: rgba(255, 255, 255, 0.2);
}
.theme-light .category-title-pill {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: var(--glass-inset);
}
.theme-light .product-thumb {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
}

@media (prefers-reduced-motion: reduce) {
    .announcement-text.marquee .announcement-text-inner {
        animation: none !important;
    }
    .product-card,
    .item,
    .icon-button,
    .nav-trigger,
    .category-top-link {
        transition: none !important;
    }
}