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var(--brand-500);--bg-page: #F2F4F8;--bg-card: #FFFFFF;--bg-hover: #F6F8FB;--content-bg: var(--bg-page);--card-bg: var(--bg-card);--card-border: var(--gray-200);--card-radius: 12px;--card-shadow: 0 1px 2px rgba(0,0,0,.04);--sidebar-bg: #FFFFFF;--sidebar-bg-elevated: var(--gray-50);--sidebar-border: var(--gray-200);--sidebar-text: var(--gray-500);--sidebar-text-hover: var(--gray-600);--sidebar-text-active: var(--brand-500);--sidebar-active-bg: var(--brand-primary-bg);--sidebar-active-accent: var(--brand-500);--sidebar-hover-bg: var(--gray-50);--submenu-bg: var(--gray-50);--sidebar-width: 240px;--sidebar-collapsed-width: 72px;--sidebar-logo-height: 56px;--sidebar-item-height: 44px;--header-height: 56px;--header-bg: #FFFFFF;--header-border: var(--gray-200);--text-display: 32px;--text-title-lg: 20px;--text-title-md: 16px;--text-title-sm: 14px;--text-body: 14px;--text-caption: 12px;--text-overline: 11px;--leading-display: 40px;--leading-title-lg: 28px;--leading-title-md: 24px;--leading-title-sm: 22px;--leading-body: 22px;--leading-caption: 20px;--leading-overline: 16px;--weight-bold: 700;--weight-semibold: 600;--weight-medium: 500;--weight-regular: 400;--space-0: 0;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--spacing-xs: var(--space-1);--spacing-sm: var(--space-2);--spacing-md: var(--space-4);--spacing-lg: var(--space-5);--spacing-xl: var(--space-6);--radius-none: 0;--radius-sm: 4px;--radius-base: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0,0,0,.04);--shadow-base: 0 2px 8px rgba(0,0,0,.06);--shadow-md: 0 4px 16px rgba(0,0,0,.08);--shadow-lg: 0 8px 32px rgba(0,0,0,.12);--shadow-xl: 0 16px 48px rgba(0,0,0,.16);--shadow-card: var(--shadow-sm);--shadow-dropdown: var(--shadow-md);--shadow-header: 0 1px 0 var(--gray-200);--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans 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#ffd899;--el-color-warning-light-8: #ffe6bf;--el-color-warning-light-9: #fff2d9;--el-color-danger: var(--danger-color);--el-color-danger-light-3: #ff4569;--el-color-danger-light-5: #ff708c;--el-color-danger-light-7: #ff9bb0;--el-color-danger-light-8: #ffc1cc;--el-color-danger-light-9: #ffe0e5;--el-color-info: var(--info-color);--el-color-info-light-3: #8e9ea8;--el-color-info-light-5: #b4bfc7;--el-color-info-light-7: #d6dde2;--el-color-info-light-8: #e5e9ec;--el-color-info-light-9: #f2f4f6;--el-border-color-base: var(--gray-200);--el-border-color-light: var(--gray-100);--el-border-color-lighter: var(--gray-50);--el-bg-color-page: var(--bg-page);--el-bg-color: var(--bg-card);--el-text-color-primary: var(--text-primary);--el-text-color-regular: var(--text-regular);--el-text-color-secondary: var(--text-secondary);--el-text-color-placeholder: var(--text-placeholder);--login-page-bg: linear-gradient(135deg, #0F1923 0%, #141F2E 50%, #1A2940 100%);--login-accent: #2979FF;--login-accent-hover: #448AFF;--login-accent-shadow: rgba(41,121,255,.3);--login-text: #FFFFFF;--login-text-secondary: rgba(255,255,255,.55);--login-card-radius: 12px;--login-card-bg: rgba(255,255,255,.98);--login-card-text: #1D2129;--login-card-text-secondary: #86909C;--juliang-primary: var(--brand-500);--juliang-primary-light: var(--brand-300);--juliang-primary-dark: var(--brand-700);--juliang-primary-bg: var(--brand-primary-bg);--juliang-primary-hover: var(--brand-primary-muted);--sidebar-bg-dark: var(--submenu-bg);--sidebar-hover: var(--sidebar-hover-bg);--color-success: var(--success-color);--color-warning: var(--warning-color);--color-danger: var(--danger-color);--color-info: var(--info-color)}:root{--site-header-h: 64px;--site-max-w: 1200px;--site-hero-max-w: min(1560px, 96vw);--site-detail-max-w: min(1320px, 94vw);--site-section-py: clamp(80px, 9vw, 128px);--site-bg: var(--bg-page);--site-surface: var(--bg-card);--site-surface-muted: var(--gray-50);--site-hero-bg: linear-gradient(165deg, #e8f2ff 0%, 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.04)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-family);background:var(--site-bg);color:var(--site-title);line-height:var(--leading-body);font-size:var(--text-body);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none}img{max-width:100%;display:block}.site-container{width:min(var(--site-max-w),100%);margin-inline:auto;padding-inline:clamp(20px,4vw,48px)}.site-container--hero{width:min(var(--site-hero-max-w),100%);margin-inline:auto;padding-inline:clamp(24px,3vw,64px)}.site-container--detail{width:min(var(--site-detail-max-w),100%);margin-inline:auto;padding-inline:clamp(24px,3vw,64px)}.site-section{padding-block:var(--site-section-py)}.site-section--compact-top{padding-top:clamp(28px,4vw,48px)}.site-section--muted{background:var(--site-surface-muted)}.site-section-head{text-align:center;max-width:720px;margin:0 auto var(--space-10)}.site-section-head h2{font-size:var(--site-section-title);font-weight:var(--weight-bold);color:var(--site-title);line-height:1.15;letter-spacing:-.03em;margin-bottom:var(--space-4)}.site-section-head p{font-size:var(--text-title-sm);color:var(--site-subtitle);line-height:1.7}.site-eyebrow{display:inline-block;font-size:var(--text-caption);font-weight:var(--weight-semibold);color:var(--brand-500);letter-spacing:.06em;margin-bottom:var(--space-3)}.site-btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:12px 28px;font-size:var(--text-body);font-weight:var(--weight-semibold);border-radius:var(--radius-md);transition:transform var(--transition-fast),box-shadow var(--transition-fast),background var(--transition-fast);white-space:nowrap}.site-btn:active{transform:scale(.98)}.site-btn--primary{background:var(--brand-gradient);color:#fff;box-shadow:0 4px 16px var(--login-accent-shadow)}.site-btn--primary:hover{box-shadow:0 6px 24px var(--login-accent-shadow)}.site-btn--ghost{background:var(--site-surface);color:var(--site-title);border:1px solid var(--gray-200)}.site-btn--ghost:hover{border-color:var(--brand-300);color:var(--brand-500)}.site-btn--sm{padding:8px 20px;font-size:var(--text-caption)}.site-btn--lg{padding:14px 36px;font-size:var(--text-title-sm);border-radius:var(--radius-full)}.site-card{background:var(--site-surface);border:1px solid var(--gray-200);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:box-shadow var(--transition-normal),transform var(--transition-normal)}.site-card:hover{box-shadow:var(--shadow-base)}.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s cubic-bezier(.22,1,.36,1),transform .6s cubic-bezier(.22,1,.36,1)}.reveal.is-visible{opacity:1;transform:translateY(0)}.product-detail-top .site-container--hero{width:min(var(--site-hero-max-w),100%)}.product-detail .site-section .site-container--hero{width:min(var(--site-detail-max-w),100%)}.product-detail .site-section{padding-block:clamp(16px,2vw,28px)}.product-detail .site-section--overview{padding-top:clamp(16px,2vw,28px);padding-bottom:clamp(16px,2vw,28px)}.product-detail .site-section--panel{background:var(--site-surface-muted);border-top:1px solid var(--gray-100)}.product-detail .site-section--panel+.site-section--panel{border-top:none;padding-top:0;margin-top:calc(-1*clamp(8px,1vw,12px))}.product-detail .site-section--last{padding-bottom:clamp(24px,3vw,36px)}.product-detail .site-section-head{margin-bottom:var(--space-4)}.product-detail .site-section-head h2{font-size:clamp(20px,2.5vw,28px);margin:var(--space-2) 0}.product-detail .site-section-head p{font-size:var(--text-body)}.product-detail .reveal{opacity:1;transform:none}.product-detail-top{background:linear-gradient(180deg,var(--brand-50) 0%,var(--site-bg) 100%);border-bottom:1px solid var(--gray-100)}.product-detail-top .page-hero{background:transparent;border-bottom:none}.product-detail-top .stats-strip{background:var(--site-surface);border-bottom:none;padding:0}.product-stack{display:flex;flex-direction:column;gap:var(--space-4)}.product-stack-block+.product-stack-block{padding-top:var(--space-4);border-top:1px solid var(--gray-200)}.product-related-inline{margin-top:var(--space-5);padding-top:var(--space-5);border-top:1px solid var(--gray-200)}.product-related-inline .related-title{margin-bottom:var(--space-4)}.product-stack-label{font-size:var(--text-caption);font-weight:var(--weight-bold);color:var(--site-subtitle);letter-spacing:.04em;margin-bottom:var(--space-3)}.product-block{display:flex;flex-direction:column;gap:var(--space-4)}.product-block+.product-block{margin-top:var(--space-4);padding-top:var(--space-4);border-top:1px solid var(--gray-100)}