/* ====================================================================
 * Numyan Portal v3 · Quantum Glass Design System
 * 深邃宇宙黑 + 毛玻璃晶体感 + 鸿蒙 7 流体动效
 * Bootstrap 5 兼容层 + 自定义未来科技质感
 * ==================================================================== */

/* ---------- 1. CSS 变量 / 主题令牌 ---------- */
:root {
    /* 背景层级 */
    --color-bg:           #030712;
    --color-bg-soft:      #0A0F1C;
    --color-bg-elevated:  #111827;
    --color-surface:      rgba(255, 255, 255, 0.04);
    --color-surface-2:    rgba(255, 255, 255, 0.06);

    /* 主题色 */
    --color-primary:      #030712;
    --color-secondary:    #00F5D4;
    --color-accent:       #3B82F6;

    /* 文字层级 */
    --color-fg:           #F9FAFB;
    --color-fg-muted:     #94A3B8;
    --color-fg-faint:     #64748B;

    /* 边框与高光 */
    --color-border:       rgba(255, 255, 255, 0.08);
    --color-border-strong:rgba(255, 255, 255, 0.16);
    --color-highlight:    rgba(255, 255, 255, 0.10);

    /* 语义 */
    --color-success:      #10B981;
    --color-warn:         #F59E0B;
    --color-danger:       #EF4444;

    /* 渐变 */
    --gradient-primary:   linear-gradient(135deg, #00F5D4 0%, #3B82F6 100%);
    --gradient-aurora:    radial-gradient(at 20% 30%, rgba(0, 245, 212, 0.18), transparent 55%),
                          radial-gradient(at 80% 70%, rgba(59, 130, 246, 0.20), transparent 55%),
                          radial-gradient(at 50% 100%, rgba(168, 85, 247, 0.12), transparent 60%),
                          linear-gradient(180deg, #030712 0%, #0A0F1C 100%);
    --gradient-shimmer:   linear-gradient(110deg,
                          rgba(255,255,255,0) 30%,
                          rgba(255,255,255,0.18) 50%,
                          rgba(255,255,255,0) 70%);

    /* 鸿蒙 7 缓动曲线 */
    --ease-spring:        cubic-bezier(0.25, 1, 0.5, 1);
    --ease-bounce:        cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-fluid:         cubic-bezier(0.22, 1, 0.36, 1);
    --ease-glide:         cubic-bezier(0.16, 1, 0.3, 1);

    /* 过渡基准 */
    --transition-fast:    all 200ms var(--ease-spring);
    --transition-base:    all 320ms var(--ease-spring);
    --transition-slow:    all 500ms var(--ease-spring);

    /* 圆角 */
    --radius-sm:          12px;
    --radius-md:          16px;
    --radius-lg:          24px;
    --radius-xl:          32px;
    --radius-pill:        999px;

    /* 间距 */
    --space-section:      clamp(5rem, 10vw, 9rem);
    --space-block:        clamp(2.5rem, 5vw, 4rem);
    --space-card:         1.75rem;

    /* 文字 */
    --text-hero:          clamp(2.75rem, 6.5vw, 5rem);
    --text-section:       clamp(2rem, 4vw, 3rem);
    --text-card:          1.25rem;
    --text-stat:          clamp(2.5rem, 5vw, 4.5rem);
}

/* ---------- 2. 全局重置 + Bootstrap 暗色覆盖 ---------- */
html { scroll-behavior: smooth; }

body {
    background: var(--color-bg);
    color: var(--color-fg);
    font-family: 'Plus Jakarta Sans', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    min-height: 100vh;
}

/* 文本对比度覆盖 */
.text-muted-2 { color: var(--color-fg-muted) !important; }
.text-fg { color: var(--color-fg) !important; }
.text-secondary-c { color: var(--color-secondary) !important; }
.text-accent-c { color: var(--color-accent) !important; }

/* ---------- 3. 渐变文字 ---------- */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    display: inline-block;
}

/* ---------- 4. 毛玻璃系统 (.glass-panel / .glass-nav / .glass-chip) ---------- */
.glass-panel {
    background: rgba(10, 15, 28, 0.55);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.10);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.06),
        inset 0 -1px 0 rgba(0, 0, 0, 0.20),
        0 8px 32px rgba(0, 0, 0, 0.40);
    border-radius: var(--radius-lg);
    will-change: transform, opacity;
    transform: translateZ(0);
}

.glass-panel--solid {
    background: rgba(17, 24, 39, 0.85);
}

.glass-nav {
    background: rgba(3, 7, 18, 0.65);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.10);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.06),
        0 8px 32px rgba(0, 0, 0, 0.30);
}

.glass-chip {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: var(--radius-pill);
}

/* 流体卡（鸿蒙引力响应） */
.quantum-card {
    background: rgba(10, 15, 28, 0.55);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-card);
    position: relative;
    overflow: hidden;
    isolation: isolate;
    transition:
        transform 400ms var(--ease-spring),
        box-shadow 400ms var(--ease-spring),
        border-color 400ms var(--ease-spring);
    will-change: transform;
    transform: translateZ(0);
}

.quantum-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%),
                  rgba(0, 245, 212, 0.10) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 500ms var(--ease-fluid);
    z-index: -1;
    pointer-events: none;
}

.quantum-card:hover {
    transform: translateY(-12px) scale(1.02);
    border-color: rgba(0, 245, 212, 0.30);
    box-shadow:
        0 30px 60px rgba(0, 245, 212, 0.15),
        0 8px 32px rgba(0, 0, 0, 0.50);
}

.quantum-card:hover::before { opacity: 1; }

.quantum-card .icon-3d {
    transition: transform 400ms var(--ease-spring);
    will-change: transform;
}

.quantum-card:hover .icon-3d {
    transform: translateZ(40px) translateY(-8px) rotateX(8deg);
}

/* ---------- 5. 按钮 ---------- */
.btn {
    --bs-btn-padding-x: 1.5rem;
    --bs-btn-padding-y: 0.75rem;
    --bs-btn-font-weight: 600;
    border-radius: var(--radius-sm);
    letter-spacing: -0.01em;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
    isolation: isolate;
    will-change: transform;
}

.btn-lg {
    --bs-btn-padding-x: 2rem;
    --bs-btn-padding-y: 1rem;
    --bs-btn-font-size: 1rem;
}

.btn-gradient {
    background: var(--gradient-primary);
    color: #030712;
    border: none;
    font-weight: 700;
    box-shadow:
        0 4px 24px rgba(0, 245, 212, 0.30),
        inset 0 1px 0 rgba(255, 255, 255, 0.20);
}

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow:
        0 12px 32px rgba(0, 245, 212, 0.45),
        inset 0 1px 0 rgba(255, 255, 255, 0.25);
    color: #030712;
}

.btn-outline-glass {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(10px);
    color: var(--color-fg);
    border: 1px solid rgba(255, 255, 255, 0.16);
}

.btn-outline-glass:hover {
    background: rgba(0, 245, 212, 0.10);
    border-color: var(--color-secondary);
    color: var(--color-secondary);
    transform: translateY(-2px);
}

.btn-ghost {
    background: transparent;
    color: var(--color-fg-muted);
    border: 1px solid rgba(255, 255, 255, 0.10);
}

.btn-ghost:hover {
    color: var(--color-fg);
    border-color: rgba(255, 255, 255, 0.24);
    background: rgba(255, 255, 255, 0.04);
}

.magnetic {
    transition: transform 250ms var(--ease-spring);
}

/* ---------- 6. Eyebrow / 标签 ---------- */
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(0, 245, 212, 0.08);
    border: 1px solid rgba(0, 245, 212, 0.24);
    border-radius: var(--radius-pill);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-secondary);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.eyebrow .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-secondary);
    box-shadow: 0 0 12px var(--color-secondary);
    animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.4); }
}

/* ---------- 7. 导航栏 ---------- */
.site-header {
    position: fixed;
    top: 1rem;
    left: 1rem;
    right: 1rem;
    z-index: 1050;
    transition: top 320ms var(--ease-spring);
}

.site-header.is-scrolled { top: 0.5rem; }

.top-menu-bar {
    border-radius: var(--radius-pill);
    padding: 0.5rem 1.5rem;
    transition: var(--transition-base);
}

.site-header.is-scrolled .top-menu-bar {
    border-radius: var(--radius-lg);
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--gradient-primary);
    color: #030712;
    font-size: 1.1rem;
    box-shadow: 0 4px 16px rgba(0, 245, 212, 0.30);
}

.navbar-brand {
    color: var(--color-fg);
    font-weight: 700;
    font-size: 1.1rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
}

.main-menu {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin: 0;
    padding: 0;
}

.menu-link {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.55rem 1rem;
    color: var(--color-fg-muted);
    font-weight: 500;
    font-size: 0.9375rem;
    text-decoration: none;
    border-radius: var(--radius-pill);
    transition: var(--transition-fast);
    position: relative;
}

.menu-link:hover,
.menu-link.active {
    color: var(--color-fg);
    background: rgba(255, 255, 255, 0.06);
}

.menu-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-secondary);
    box-shadow: 0 0 8px var(--color-secondary);
}

.menu-link .chevron {
    font-size: 0.75rem;
    transition: transform 200ms var(--ease-spring);
}

.menu-link:hover .chevron { transform: rotate(180deg); }

/* 下拉 / Mega menu */
.dropdown-menu {
    background: rgba(10, 15, 28, 0.92);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
    padding: 1rem;
    margin-top: 0.75rem;
}

.dropdown-item {
    color: var(--color-fg-muted);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    transition: var(--transition-fast);
    display: flex;
    align-items: flex-start;
    gap: 0.875rem;
}

.dropdown-item:hover,
.dropdown-item:focus {
    background: rgba(0, 245, 212, 0.08);
    color: var(--color-fg);
}

.dropdown-item .item-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.dropdown-item .item-title {
    font-weight: 600;
    color: var(--color-fg);
    margin-bottom: 2px;
    display: block;
    line-height: 1.3;
}

.dropdown-item .item-desc {
    font-size: 0.8125rem;
    color: var(--color-fg-faint);
    display: block;
    line-height: 1.4;
    margin-top: 2px;
}

/* Mega Menu 底部链接条 */
.megamenu-foot {
    margin-top: 0.5rem;
    padding: 0.75rem 1rem 0.25rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.megamenu-foot__link {
    display: inline-flex;
    align-items: center;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}
.megamenu-foot__link:hover {
    color: #fff;
    transform: translateX(2px);
}
.megamenu-foot__link i {
    transition: transform var(--transition-fast);
}
.megamenu-foot__link:hover i {
    transform: translateX(2px);
}

/* 分组头部小图标间距 */
.dropdown-header.d-flex.align-items-center i {
    font-size: 0.85rem;
    opacity: 0.85;
}

/* Mega Menu 三列等宽 + 等间距 */
.megamenu-grid {
    align-items: stretch;          /* 让所有列拉到一样高 */
}
.megamenu-grid > [class*="col-"] {
    display: flex;
    flex-direction: column;
}
.megamenu-grid .dropdown-item:last-child {
    margin-bottom: 0;
}
/* 列之间等距视觉分隔（用相邻选择器，避免影响 padding） */
.megamenu-grid > .col-lg-4 + .col-lg-4,
.megamenu-grid > .col-lg-5 + .col-lg-3,
.megamenu-grid > .col-lg-3 + .col-lg-4 {
    border-left: 1px solid rgba(255, 255, 255, 0.06);
    padding-left: 1rem;            /* 与 g-4 (1.5rem) 视觉协调 */
    margin-left: -0.25rem;        /* 微调让分隔线居中 */
}
/* 短列（如 CERT 单项）纵向居中，不显得空 */
.megamenu-col--sparse {
    justify-content: space-between;
    min-height: 100%;
}

/* 顶部公告条 */
.top-banner {
    background: linear-gradient(90deg, rgba(0, 245, 212, 0.08), rgba(59, 130, 246, 0.08));
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
    height: 36px;
    line-height: 36px;
    font-size: 0.8125rem;
    color: var(--color-fg-muted);
}

.marquee-track {
    display: inline-flex;
    white-space: nowrap;
    gap: 3rem;
    animation: marqueeFlow 40s linear infinite;
}

.marquee-item { display: inline-flex; align-items: center; gap: 0.75rem; }
.marquee-item .sep {
    width: 4px; height: 4px;
    background: var(--color-secondary);
    border-radius: 50%;
    display: inline-block;
}

.marquee-item a {
    color: var(--color-secondary);
    text-decoration: none;
    font-weight: 600;
}

@keyframes marqueeFlow {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

/* ---------- 8. Hero 区 ---------- */
.hero {
    position: relative;
    min-height: 92vh;
    padding: 10rem 0 5rem;
    background: var(--gradient-aurora);
    overflow: hidden;
}

.hero canvas.particle-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.55;
}

.hero-content { position: relative; z-index: 2; }

.hero-title {
    font-size: var(--text-hero);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.025em;
    margin: 1.5rem 0 1.5rem;
    color: var(--color-fg);
}

.hero-lead {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    line-height: 1.7;
    color: var(--color-fg-muted);
    max-width: 540px;
    margin-bottom: 2rem;
}

.hero-trust {
    display: flex;
    gap: 1.5rem;
    margin-top: 2.5rem;
    flex-wrap: wrap;
}

.hero-trust-item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-fg-muted);
}

.hero-trust-item i {
    color: var(--color-secondary);
    font-size: 1rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* 右侧 AI 模型渲染流动体（多层毛玻璃） */
.hero-bento {
    position: relative;
    perspective: 1200px;
}

.bento {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    transform-style: preserve-3d;
}

.bento-cell {
    background: rgba(10, 15, 28, 0.55);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    position: relative;
    overflow: hidden;
    transition: var(--transition-base);
    will-change: transform;
    transform: translateZ(0);
}

.bento-cell::after {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(0,245,212,0.4), transparent 50%, rgba(59,130,246,0.3));
    opacity: 0;
    transition: opacity 400ms var(--ease-spring);
    pointer-events: none;
    z-index: -1;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    padding: 1px;
}

.bento-cell:hover::after { opacity: 1; }

.bento-cell--lg {
    grid-column: span 3;
    background: linear-gradient(135deg, rgba(0, 245, 212, 0.15), rgba(59, 130, 246, 0.18));
}

.bento-cell--md { grid-column: span 2; }

.bento-cell--sm { grid-column: span 1; }

.bento-stat {
    background: rgba(255, 255, 255, 0.06);
    border-radius: 10px;
    padding: 0.75rem 0.5rem;
    text-align: center;
}

.bento-stat .stat-num {
    color: #fff;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.bento-stat .stat-lab {
    color: rgba(255, 255, 255, 0.7);
    font-size: 10px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-top: 2px;
}

/* ---------- 9. Section 通用 ---------- */
.section {
    padding: var(--space-section) 0;
    position: relative;
}

.section-soft {
    background: var(--color-bg-soft);
}

.section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.875rem;
    background: rgba(0, 245, 212, 0.08);
    border: 1px solid rgba(0, 245, 212, 0.24);
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-secondary);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.section-eyebrow .dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--color-secondary);
    box-shadow: 0 0 8px var(--color-secondary);
}

.section-title {
    font-size: var(--text-section);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--color-fg);
    margin: 1rem 0 1rem;
}

.section-lead {
    font-size: 1.0625rem;
    color: var(--color-fg-muted);
    max-width: 680px;
    line-height: 1.7;
}

/* ---------- 10. 数据大字报 + Shimmer ---------- */
.stat-number {
    font-size: var(--text-stat);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.03em;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    margin-bottom: 0.5rem;
    font-feature-settings: "tnum";
    font-variant-numeric: tabular-nums;
}

.shimmer-text {
    background: var(--gradient-shimmer), var(--gradient-primary);
    background-size: 200% 100%, 100% 100%;
    background-position: 200% 0, 0 0;
    background-repeat: no-repeat;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    animation: shimmerSlide 3.5s linear infinite;
    will-change: background-position;
}

@keyframes shimmerSlide {
    0% { background-position: 200% 0, 0 0; }
    100% { background-position: -200% 0, 0 0; }
}

.stat-label {
    color: var(--color-fg-muted);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

/* ---------- 11. 上市公司 Logo 墙 ---------- */
.logo-wall {
    padding: 1.5rem 2rem;
    background: rgba(10, 15, 28, 0.55);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: relative;
    /* 自适应屏幕宽度：80vw，并打破 .container 限制居中 */
    width: 80vw;
    max-width: 80vw;
    margin-left: calc(50% - 40vw);
    margin-right: calc(50% - 40vw);
}

.logo-wall::before,
.logo-wall::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 80px;
    z-index: 2;
    pointer-events: none;
}

.logo-wall::before {
    left: 0;
    background: linear-gradient(90deg, var(--color-bg-soft), transparent);
}

.logo-wall::after {
    right: 0;
    background: linear-gradient(-90deg, var(--color-bg-soft), transparent);
}

.logo-track {
    display: flex;
    gap: 100px;  /* logo 之间 100px 间隔，间隔填充色 = track 背景色 */
    align-items: center;
    height: 60px;
    background: #ffffff;  /* 默认：白色（匹配 logo 原色底） */
    animation: logoScroll 120s linear infinite;  /* 速度 = 40s × 3，慢三倍 */
    width: max-content;
    transition: background var(--transition-base);
}

/* Hover Logo 墙 → 灰度化 + 背景切灰 */
.logo-wall:hover .logo-track {
    background: #EDEDEF;  /* 灰色填充：匹配灰度 logo */
}
.logo-wall:hover .logo-img {
    filter: grayscale(100%) brightness(0.95);
    opacity: 0.6;
}

/* Logo 图片（替代旧版 icon-text 占位）
   原始为 3300×60px 横向 banner，保持原始 height=60px */
.logo-img {
    flex-shrink: 0;
    height: 60px;
    width: auto;
    object-fit: contain;
    filter: grayscale(0%) brightness(1);  /* 默认：原色 */
    opacity: 1;
    transition: filter var(--transition-base), opacity var(--transition-base);
    will-change: filter, opacity;
    user-select: none;
    -webkit-user-drag: none;
}

.logo-img:hover {
    opacity: 0.9;
}

/* 兼容旧版 .logo-item（如果其它页面仍使用） */
.logo-item {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-fg-muted);
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    filter: grayscale(100%);
    opacity: 0.55;
    transition: var(--transition-base);
    white-space: nowrap;
}

.logo-item i {
    font-size: 1.5rem;
}

.logo-item:hover {
    filter: grayscale(0%);
    opacity: 1;
    color: var(--color-fg);
}

@keyframes logoScroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

@media (max-width: 767.98px) {
    .logo-img { height: 40px; }
    .logo-track { gap: 60px; height: 40px; }  /* 移动端按比例缩小：高度 40px、间隔 60px */
}

/* ---------- 12. 液体晕染列表 ---------- */
.liquid-list { list-style: none; padding: 0; margin: 0; }

.liquid-item {
    position: relative;
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    margin-bottom: 0.75rem;
    overflow: hidden;
    isolation: isolate;
    cursor: pointer;
    transition: var(--transition-base);
    will-change: transform;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.liquid-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%),
                  rgba(0, 245, 212, 0.20) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 600ms var(--ease-fluid);
    z-index: -1;
    pointer-events: none;
}

.liquid-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%),
                  rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 800ms var(--ease-fluid) 100ms;
    z-index: -1;
    pointer-events: none;
}

.liquid-item:hover {
    transform: translateX(4px);
    border-color: rgba(0, 245, 212, 0.30);
}

.liquid-item:hover::before { opacity: 1; }
.liquid-item:hover::after { opacity: 1; }

.liquid-item .item-meta {
    font-size: 0.8125rem;
    color: var(--color-fg-faint);
    font-weight: 500;
    flex-shrink: 0;
}

.liquid-item .item-title {
    font-weight: 600;
    color: var(--color-fg);
    flex: 1;
}

.liquid-item .item-action {
    color: var(--color-secondary);
    flex-shrink: 0;
    transition: transform 200ms var(--ease-spring);
}

.liquid-item:hover .item-action {
    transform: translateX(4px);
}

/* ---------- 13. CTA Box ---------- */
.cta-box {
    padding: clamp(2.5rem, 5vw, 4rem);
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, rgba(0, 245, 212, 0.12), rgba(59, 130, 246, 0.18)),
                rgba(10, 15, 28, 0.85);
    border: 1px solid rgba(0, 245, 212, 0.20);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    inset: -50%;
    background: radial-gradient(circle at center, rgba(0, 245, 212, 0.15), transparent 50%);
    animation: auroraShift 12s ease-in-out infinite;
    pointer-events: none;
}

@keyframes auroraShift {
    0%, 100% { transform: translate(-20%, -20%) scale(1); }
    50% { transform: translate(20%, 20%) scale(1.2); }
}

.cta-box > * { position: relative; z-index: 1; }

/* ---------- 14. 滚动揭示动画 ---------- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition:
        opacity 800ms var(--ease-spring),
        transform 800ms var(--ease-spring);
    will-change: opacity, transform;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-stagger > * {
    opacity: 0;
    transform: translateY(30px);
    transition:
        opacity 700ms var(--ease-spring),
        transform 700ms var(--ease-spring);
    will-change: opacity, transform;
}

.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 80ms; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 160ms; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 240ms; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 320ms; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 400ms; }
.reveal-stagger.is-visible > *:nth-child(7) { transition-delay: 480ms; }
.reveal-stagger.is-visible > *:nth-child(8) { transition-delay: 560ms; }

.reveal-stagger.is-visible > * {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- 15. Click Ripple 水纹 ---------- */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 245, 212, 0.5) 0%, transparent 70%);
    transform: scale(0);
    animation: rippleExpand 800ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
    pointer-events: none;
    will-change: transform, opacity;
    z-index: 0;
}

@keyframes rippleExpand {
    to { transform: scale(8); opacity: 0; }
}

/* ---------- 16. 表单 ---------- */
.form-control,
.form-select {
    background: rgba(10, 15, 28, 0.55);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: var(--radius-md);
    color: var(--color-fg);
    padding: 0.875rem 1rem;
    font-size: 0.9375rem;
    transition: var(--transition-fast);
}

.form-control:focus,
.form-select:focus {
    background: rgba(10, 15, 28, 0.75);
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 4px rgba(0, 245, 212, 0.12);
    color: var(--color-fg);
}

.form-control::placeholder { color: var(--color-fg-faint); }

.form-label {
    color: var(--color-fg);
    font-weight: 500;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

/* ---------- 17. 卡片类型 ---------- */
.feature-card {
    background: rgba(10, 15, 28, 0.55);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    position: relative;
    overflow: hidden;
    isolation: isolate;
    transition: var(--transition-base);
    color: var(--color-fg);
    height: 100%;
    display: block;
}

.feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%),
                  rgba(0, 245, 212, 0.12) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 600ms var(--ease-fluid);
    z-index: -1;
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 245, 212, 0.24);
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.4);
}

.feature-card:hover::before { opacity: 1; }

/* 浮动 Y 动画（Hero 流体卡） */
.float-y {
    animation: floatY 6s ease-in-out infinite;
    will-change: transform;
}

@keyframes floatY {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.float-y-2 { animation: floatY 7s ease-in-out infinite 0.5s; }
.float-y-3 { animation: floatY 8s ease-in-out infinite 1s; }

/* ---------- 18. Icon Boxes ---------- */
.icon-box,
.icon-box-sm,
.icon-box-lg {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.icon-box { width: 48px; height: 48px; font-size: 1.25rem; }
.icon-box-sm { width: 36px; height: 36px; font-size: 0.95rem; }
.icon-box-lg { width: 56px; height: 56px; font-size: 1.5rem; }

.icon-tone-cyan {
    background: rgba(0, 245, 212, 0.10);
    color: var(--color-secondary);
    border: 1px solid rgba(0, 245, 212, 0.20);
}

.icon-tone-blue {
    background: rgba(59, 130, 246, 0.10);
    color: var(--color-accent);
    border: 1px solid rgba(59, 130, 246, 0.20);
}

.icon-tone-purple {
    background: rgba(168, 85, 247, 0.10);
    color: #A855F7;
    border: 1px solid rgba(168, 85, 247, 0.20);
}

.icon-tone-amber {
    background: rgba(245, 158, 11, 0.10);
    color: var(--color-warn);
    border: 1px solid rgba(245, 158, 11, 0.20);
}

.icon-tone-lime {
    background: rgba(16, 185, 129, 0.10);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.20);
}

.icon-tone-neutral {
    background: rgba(255, 255, 255, 0.06);
    color: var(--color-fg);
    border: 1px solid rgba(255, 255, 255, 0.10);
}

/* ---------- 19. Footer ---------- */
.site-footer {
    background: linear-gradient(180deg, var(--color-bg) 0%, #020410 100%);
    border-top: 1px solid var(--color-border);
    padding: 5rem 0 2rem;
    position: relative;
    overflow: hidden;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-secondary), transparent);
    opacity: 0.5;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    color: var(--color-fg);
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.footer-desc {
    color: var(--color-fg-muted);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    max-width: 360px;
}

.footer-title {
    color: var(--color-fg);
    font-weight: 600;
    font-size: 0.875rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 1.25rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li { margin-bottom: 0.625rem; }

.footer-links a {
    color: var(--color-fg-muted);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-links a:hover {
    color: var(--color-secondary);
    transform: translateX(3px);
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    color: var(--color-fg-faint);
    font-size: 0.875rem;
}

.footer-socials {
    display: flex;
    gap: 0.75rem;
}

.footer-socials a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-fg-muted);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-socials a:hover {
    background: var(--color-secondary);
    color: #030712;
    border-color: var(--color-secondary);
    transform: translateY(-3px);
}

/* ---------- 20. FAQ / Accordion ---------- */
.faq-item {
    background: rgba(10, 15, 28, 0.55);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: var(--transition-base);
}

.faq-item:hover {
    border-color: rgba(0, 245, 212, 0.24);
}

.faq-q {
    width: 100%;
    background: none;
    border: none;
    padding: 1.5rem 1.75rem;
    color: var(--color-fg);
    font-size: 1.0625rem;
    font-weight: 600;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.faq-q:hover { color: var(--color-secondary); }

.faq-q .chevron {
    transition: transform 300ms var(--ease-spring);
    color: var(--color-fg-muted);
}

.faq-item.is-open .faq-q .chevron { transform: rotate(180deg); color: var(--color-secondary); }

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 400ms var(--ease-fluid);
    padding: 0 1.75rem;
    color: var(--color-fg-muted);
    line-height: 1.7;
}

.faq-item.is-open .faq-a {
    max-height: 600px;
    padding: 0 1.75rem 1.5rem;
}

/* ---------- 21. Table ---------- */
.data-table {
    width: 100%;
    background: rgba(10, 15, 28, 0.55);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border-collapse: separate;
    border-spacing: 0;
}

.data-table thead {
    background: rgba(0, 245, 212, 0.06);
}

.data-table th {
    color: var(--color-fg);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 1rem 1.25rem;
    text-align: left;
    border-bottom: 1px solid rgba(0, 245, 212, 0.16);
    letter-spacing: 0.02em;
}

.data-table td {
    color: var(--color-fg-muted);
    padding: 1rem 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    font-size: 0.9375rem;
}

.data-table tbody tr {
    transition: var(--transition-fast);
}

.data-table tbody tr:hover {
    background: rgba(0, 245, 212, 0.04);
}

.data-table tbody tr:last-child td { border-bottom: none; }

/* ---------- 22. Tabs ---------- */
.q-tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    background: rgba(10, 15, 28, 0.55);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-pill);
    padding: 0.375rem;
    margin-bottom: 2rem;
    width: fit-content;
    max-width: 100%;
}

.q-tab {
    padding: 0.625rem 1.25rem;
    background: transparent;
    border: none;
    color: var(--color-fg-muted);
    font-weight: 500;
    font-size: 0.9375rem;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.q-tab:hover { color: var(--color-fg); }

.q-tab.active {
    background: var(--gradient-primary);
    color: #030712;
    box-shadow: 0 4px 16px rgba(0, 245, 212, 0.30);
}

/* ---------- 23. Page Header (子页面) ---------- */
.page-header {
    padding: 10rem 0 4rem;
    background: var(--gradient-aurora);
    position: relative;
    overflow: hidden;
}

.page-header canvas.particle-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.45;
}

.page-header-content { position: relative; z-index: 2; }

.page-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.1;
    margin: 1.25rem 0 1rem;
}

.breadcrumb-c {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-fg-faint);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.breadcrumb-c a {
    color: var(--color-fg-muted);
    text-decoration: none;
    transition: var(--transition-fast);
}

.breadcrumb-c a:hover { color: var(--color-secondary); }
.breadcrumb-c .sep { opacity: 0.5; }

/* ---------- 24. News / Blog Cards ---------- */
.news-card {
    background: rgba(10, 15, 28, 0.55);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 0;
    overflow: hidden;
    transition: var(--transition-base);
    height: 100%;
    display: flex;
    flex-direction: column;
    color: var(--color-fg);
    text-decoration: none;
}

.news-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 245, 212, 0.24);
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.5);
}

.news-cover {
    height: 200px;
    background: linear-gradient(135deg, rgba(0, 245, 212, 0.15), rgba(59, 130, 246, 0.20));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-fg);
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}

.news-cover::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(0, 245, 212, 0.20), transparent 60%);
    animation: auroraShift 14s ease-in-out infinite;
}

.news-body {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-date {
    color: var(--color-secondary);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.news-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-fg);
    line-height: 1.4;
    margin-bottom: 0.75rem;
}

.news-excerpt {
    color: var(--color-fg-muted);
    font-size: 0.9375rem;
    line-height: 1.65;
    flex: 1;
}

.news-tag {
    display: inline-block;
    padding: 0.25rem 0.625rem;
    background: rgba(0, 245, 212, 0.10);
    border: 1px solid rgba(0, 245, 212, 0.24);
    border-radius: var(--radius-pill);
    color: var(--color-secondary);
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 1rem;
    align-self: flex-start;
}

/* ---------- 25. Contact Page ---------- */
.contact-card {
    background: rgba(10, 15, 28, 0.55);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 2rem;
    height: 100%;
    transition: var(--transition-base);
}

.contact-card:hover {
    border-color: rgba(0, 245, 212, 0.24);
    transform: translateY(-4px);
}

.contact-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: var(--gradient-primary);
    color: #030712;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
    box-shadow: 0 8px 24px rgba(0, 245, 212, 0.30);
}

.contact-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-fg);
    margin-bottom: 0.5rem;
}

.contact-text {
    color: var(--color-fg-muted);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* ---------- 26. Tilt 3D ---------- */
.tilt-card {
    transition: transform 400ms var(--ease-spring);
    transform-style: preserve-3d;
    will-change: transform;
}

/* ---------- 27. Section 极光装饰 ---------- */
.section-deco {
    position: absolute;
    pointer-events: none;
    filter: blur(80px);
    opacity: 0.5;
    border-radius: 50%;
    z-index: 0;
}

.section-deco-1 {
    top: 10%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--color-secondary), transparent 70%);
}

.section-deco-2 {
    bottom: 10%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--color-accent), transparent 70%);
}

/* ---------- 28. 响应式 ---------- */
@media (max-width: 991.98px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .bento { grid-template-columns: repeat(2, 1fr); }
    .bento-cell--lg, .bento-cell--md { grid-column: span 2; }
}

@media (max-width: 767.98px) {
    .site-header { top: 0.5rem; left: 0.5rem; right: 0.5rem; }
    .hero { min-height: auto; padding: 8rem 0 4rem; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .bento { grid-template-columns: 1fr; }
    .bento-cell--lg, .bento-cell--md, .bento-cell--sm { grid-column: span 1; }
    .hero-trust { gap: 1rem; }
    .q-tabs { width: 100%; justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; }
}

/* ---------- 29. Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .particle-canvas { display: none; }
    .shimmer-text { animation: none; }
    .float-y, .float-y-2, .float-y-3 { animation: none; }
}

/* ---------- 30. 焦点状态 ---------- */
:focus-visible {
    outline: 2px solid var(--color-secondary);
    outline-offset: 3px;
    border-radius: 4px;
}

button:focus-visible,
a:focus-visible {
    outline-offset: 4px;
}

/* ---------- 31. 滚动条 ---------- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb {
    background: rgba(0, 245, 212, 0.20);
    border-radius: 999px;
    border: 2px solid var(--color-bg);
}
::-webkit-scrollbar-thumb:hover { background: rgba(0, 245, 212, 0.40); }

/* ---------- 32. Selection ---------- */
::selection {
    background: rgba(0, 245, 212, 0.30);
    color: var(--color-fg);
}

/* ---------- 33. Utility ---------- */
.cursor-pointer { cursor: pointer; }
.text-balance { text-wrap: balance; }
.text-pretty { text-wrap: pretty; }

.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
    margin: 3rem 0;
}

.text-mono {
    font-family: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
    font-feature-settings: "ss01", "cv01";
}

/* Bootstrap 5 暗色覆盖 */
.bg-body { background: var(--color-bg) !important; }

a { color: var(--color-secondary); }
a:hover { color: var(--color-accent); }

hr { border-color: var(--color-border); opacity: 1; }