/* ================================================
   北京九州尚鸣科技有限公司 - 官方网站样式
   科技感 · 高端 · 智能
   ================================================ */

/* ---- CSS 变量 ---- */
:root {
    --color-bg: #030b1a;
    --color-bg-2: #050f22;
    --color-surface: rgba(3, 11, 26, 0.45);
    --color-surface-hover: rgba(0, 200, 255, 0.06);
    --color-border: rgba(0, 200, 255, 0.18);
    --color-primary: #00c8ff;
    --color-secondary: #0066ff;
    --color-accent: #00ffcc;
    --color-text: #e8f4ff;
    --color-text-muted: rgba(232, 244, 255, 0.6);
    --color-text-dim: rgba(232, 244, 255, 0.35);
    --gradient-primary: linear-gradient(135deg, #00c8ff, #0066ff);
    --gradient-accent: linear-gradient(135deg, #00ffcc, #00c8ff);
    --gradient-bg: linear-gradient(180deg, #030b1a 0%, #050f22 50%, #030b1a 100%);
    --shadow-glow: 0 0 30px rgba(0, 200, 255, 0.2);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --nav-height: 72px;
    --transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---- Reset & Base ---- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: transparent;
    color: var(--color-text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ---- 深色背景层（固定在最底层，让粒子效果在其上） ---- */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -2;
    background: radial-gradient(ellipse at 20% 30%, rgba(0, 60, 120, 0.35) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 70%, rgba(0, 100, 200, 0.20) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 50%, rgba(0, 20, 60, 0.98) 0%, #030b1a 100%);
    background-color: #030b1a;
}

/* ---- 粒子背景 ---- */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    opacity: 0.85;
}

/* ---- 容器 ---- */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
    z-index: 1;
}

/* ---- 玻璃拟态卡片 ---- */
.glass-card {
    background: rgba(3, 11, 26, 0.5);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}
.glass-card:hover {
    background: rgba(0, 200, 255, 0.06);
    border-color: rgba(0, 200, 255, 0.35);
    box-shadow: var(--shadow-glow), var(--shadow-card);
    transform: translateY(-2px);
}

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

/* ---- 导航栏 ---- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    transition: all var(--transition);
}
.navbar.scrolled {
    background: rgba(3, 11, 26, 0.92);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 4px 32px rgba(0, 0, 0, 0.4);
}
.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    cursor: pointer;
}
.logo-icon {
    width: 42px;
    height: 42px;
    animation: logo-spin 20s linear infinite;
}
@keyframes logo-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
.logo-text {
    display: flex;
    flex-direction: column;
}
.logo-cn {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--color-text);
    line-height: 1.2;
}
.logo-text-name {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--color-text);
    line-height: 1.2;
}
html.lang-en .logo-cn { display: none; }
html.lang-en .logo-en { display: inline; }
.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}
.nav-link {
    display: block;
    padding: 8px 14px;
    text-decoration: none;
    color: var(--color-text-muted);
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 16px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: transform var(--transition);
}
.nav-link:hover {
    color: var(--color-text);
}
.nav-link:hover::after {
    transform: translateX(-50%) scaleX(1);
}
.nav-link.active {
    color: var(--color-primary);
}
.nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}
.nav-cta {
    background: var(--gradient-primary) !important;
    color: #fff !important;
    padding: 8px 20px !important;
    border-radius: 20px;
    font-weight: 600;
}
.nav-cta::after { display: none; }
.nav-cta:hover {
    box-shadow: 0 0 20px rgba(0, 200, 255, 0.4);
    transform: translateY(-1px);
}

/* ---- 语言切换按钮 ---- */
.lang-switch-btn {
    padding: 6px 14px;
    background: rgba(0, 200, 255, 0.1);
    border: 1px solid rgba(0, 200, 255, 0.3);
    border-radius: 20px;
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    letter-spacing: 0.5px;
}
.lang-switch-btn:hover {
    background: rgba(0, 200, 255, 0.2);
    border-color: rgba(0, 200, 255, 0.5);
    box-shadow: 0 0 15px rgba(0, 200, 255, 0.3);
    transform: translateY(-1px);
}
.lang-switch-btn:active {
    transform: translateY(0);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ---- Section 通用 ---- */
.section {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}
.section-header {
    text-align: center;
    margin-bottom: 72px;
}
.section-tag {
    display: inline-block;
    font-family: 'Orbitron', sans-serif;
    font-size: 11px;
    letter-spacing: 4px;
    color: var(--color-primary);
    margin-bottom: 16px;
    padding: 6px 16px;
    border: 1px solid var(--color-border);
    border-radius: 20px;
    background: rgba(0, 200, 255, 0.05);
}
.section-title {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 16px;
    line-height: 1.3;
}
.section-desc {
    font-size: 16px;
    color: var(--color-text-muted);
    letter-spacing: 2px;
}

/* ---- Reveal 动画 ---- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ================================================
   HERO 区域
   ================================================ */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: var(--nav-height);
}
.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 200, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 200, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.hero-content {
    flex: 1;
    padding: 60px 80px;
    position: relative;
    z-index: 2;
    max-width: 700px;
}
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 2;
    min-height: 500px;
}
.circuit-animation {
    width: 500px;
    height: 500px;
    position: relative;
}
#circuit-canvas {
    width: 100%;
    height: 100%;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-primary);
    margin-bottom: 24px;
    padding: 8px 16px;
    border: 1px solid var(--color-border);
    border-radius: 20px;
    background: rgba(0, 200, 255, 0.06);
    letter-spacing: 0.5px;
}
.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-primary);
    animation: pulse-dot 2s infinite;
    box-shadow: 0 0 6px var(--color-primary);
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}
.hero-title {
    font-size: clamp(38px, 5vw, 60px);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 24px;
}
.title-line {
    display: block;
}
.hero-subtitle {
    font-size: 17px;
    color: var(--color-text-muted);
    margin-bottom: 48px;
    letter-spacing: 1px;
    line-height: 1.8;
}
.hero-stats {
    display: flex;
    align-items: center;
    gap: 0;
    margin-bottom: 48px;
    padding: 24px 32px;
    background: rgba(3, 11, 26, 0.55);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}
.stat-item {
    flex: 1;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.stat-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 28px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}
.stat-unit {
    font-size: 14px;
    color: var(--color-primary);
    font-weight: 600;
}
.stat-label {
    font-size: 11px;
    color: var(--color-text-muted);
    margin-top: 4px;
    letter-spacing: 0.5px;
}
.stat-divider {
    width: 1px;
    height: 48px;
    background: var(--color-border);
    margin: 0 8px;
}
.hero-actions {
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: var(--gradient-primary);
    color: #fff;
    text-decoration: none;
    border-radius: 28px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: 0 4px 20px rgba(0, 200, 255, 0.3);
}
.btn-primary svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition);
}
.btn-primary:hover {
    box-shadow: 0 8px 32px rgba(0, 200, 255, 0.5);
    transform: translateY(-2px) scale(1.02);
}
.btn-primary:hover svg {
    transform: translateX(4px);
}
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: transparent;
    color: var(--color-text-muted);
    text-decoration: none;
    border-radius: 28px;
    font-size: 15px;
    font-weight: 500;
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: all var(--transition);
}
.btn-secondary:hover {
    color: var(--color-text);
    border-color: var(--color-primary);
    background: rgba(0, 200, 255, 0.06);
}
.btn-full { width: 100%; justify-content: center; }
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 2;
}
.scroll-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary);
    animation: scroll-bounce 2s ease-in-out infinite;
    box-shadow: 0 0 8px var(--color-primary);
}
@keyframes scroll-bounce {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(8px); opacity: 0.5; }
}
.scroll-indicator span {
    font-size: 11px;
    color: var(--color-text-dim);
    letter-spacing: 2px;
    writing-mode: vertical-lr;
}

/* ================================================
   关于我们
   ================================================ */
.about-section {
    background: transparent;
}
.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 64px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}
.about-card {
    padding: 40px;
    height: 100%;
}
.about-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 24px;
}
.about-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--color-text);
}
.about-card p {
    color: var(--color-text-muted);
    line-height: 1.9;
}
.about-card strong {
    color: var(--color-primary);
    font-weight: 600;
}
.about-advantages {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.advantage-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 24px;
}
.adv-icon {
    width: 44px;
    height: 44px;
    padding: 10px;
    border-radius: 12px;
    flex-shrink: 0;
}
.adv-icon-1 { background: rgba(0, 200, 255, 0.1); color: var(--color-primary); }
.adv-icon-2 { background: rgba(0, 102, 255, 0.1); color: var(--color-secondary); }
.adv-icon-3 { background: rgba(0, 255, 204, 0.1); color: var(--color-accent); }
.adv-content h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--color-text);
}
.adv-content p {
    font-size: 13px;
    color: var(--color-text-muted);
}
/* 三层架构 */
.architecture {
    margin-top: 48px;
    padding: 40px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}
.arch-title {
    text-align: center;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 40px;
    color: var(--color-text);
}
.arch-layers {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}
.arch-layer {
    text-align: center;
    padding: 28px 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    position: relative;
    min-width: 200px;
    transition: all var(--transition);
}
.layer-1 { background: rgba(0, 200, 255, 0.06); }
.layer-2 { background: rgba(0, 102, 255, 0.06); }
.layer-3 { background: rgba(0, 255, 204, 0.06); }
.arch-layer:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
    border-color: var(--color-primary);
}
.layer-num {
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}
.layer-name {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--color-text);
}
.layer-desc {
    font-size: 13px;
    color: var(--color-text-muted);
}
.arch-arrow { width: 40px; flex-shrink: 0; }

/* ================================================
   市场背景
   ================================================ */
.market-bg-section {
    background: transparent;
}
.market-data-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}
.market-card {
    padding: 32px 24px;
    text-align: center;
}
.market-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 36px;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 12px;
}
.market-number span {
    font-size: 18px;
}
.market-label {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 8px;
    line-height: 1.5;
}
.market-sub {
    font-size: 12px;
    color: var(--color-text-dim);
    margin-bottom: 12px;
}
.market-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(0, 200, 255, 0.1);
    border: 1px solid rgba(0, 200, 255, 0.2);
    border-radius: 12px;
    font-size: 11px;
    color: var(--color-primary);
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 0.5px;
}
.trends-row {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}
.trend-item {
    flex: 1;
    min-width: 200px;
    text-align: center;
    padding: 28px 20px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}
.trend-item:hover {
    border-color: var(--color-primary);
    background: var(--color-surface-hover);
    transform: translateY(-3px);
}
.trend-icon {
    font-size: 32px;
    margin-bottom: 12px;
}
.trend-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
}
.trend-desc {
    font-size: 13px;
    color: var(--color-text-muted);
}

/* ================================================
   产品区域
   ================================================ */
.products-section {
    background: transparent;
}
.product-block {
    margin-bottom: 80px;
    padding: 48px;
    background: rgba(3, 11, 26, 0.5);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: border-color var(--transition);
}
.product-block:hover { border-color: rgba(0, 200, 255, 0.3); }
.product-header {
    margin-bottom: 40px;
}
.product-tag {
    display: inline-block;
    font-family: 'Orbitron', sans-serif;
    font-size: 12px;
    letter-spacing: 3px;
    padding: 6px 16px;
    background: rgba(0, 200, 255, 0.1);
    border: 1px solid rgba(0, 200, 255, 0.3);
    border-radius: 20px;
    color: var(--color-primary);
    margin-bottom: 16px;
}
.product-tag-2 {
    background: rgba(0, 102, 255, 0.1);
    border-color: rgba(0, 102, 255, 0.3);
    color: #6699ff;
}
.product-tag-3 {
    background: rgba(0, 255, 204, 0.1);
    border-color: rgba(0, 255, 204, 0.3);
    color: var(--color-accent);
}
.product-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
}
.product-en {
    font-size: 13px;
    color: var(--color-text-dim);
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 2px;
}
.product-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    align-items: start;
}
.product-grid-reverse {
    grid-template-columns: 1fr;
}
.product-features {
    display: grid;
    gap: 16px;
    width: 100%;
}
.product-features-3col {
    grid-template-columns: repeat(3, 1fr);
    width: 100%;
}
.product-features-4col {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    max-width: 100%;
    margin: 0 auto;
}
.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 18px 20px;
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ---- 产品图片展示区 ---- */
.product-image-showcase {
    display: flex;
    align-items: center;
    gap: 32px;
    margin-bottom: 40px;
    padding: 32px 40px;
    background: rgba(0, 200, 255, 0.03);
    border: 1px solid rgba(0, 200, 255, 0.12);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}
.product-image-showcase::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(0, 200, 255, 0.06) 0%, transparent 65%);
    pointer-events: none;
}
.product-image-showcase-blue::before {
    background: radial-gradient(ellipse at 30% 50%, rgba(0, 102, 255, 0.08) 0%, transparent 65%);
}
.product-image-showcase-green::before {
    background: radial-gradient(ellipse at 30% 50%, rgba(0, 255, 204, 0.07) 0%, transparent 65%);
}
.product-img-wrap {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    min-width: 0;
}
.product-svg {
    width: 100%;
    max-width: 420px;
    height: auto;
    filter: drop-shadow(0 0 20px rgba(0, 200, 255, 0.15));
}
.product-image-showcase-blue .product-svg {
    filter: drop-shadow(0 0 20px rgba(0, 102, 255, 0.2));
}
.product-image-showcase-green .product-svg {
    filter: drop-shadow(0 0 20px rgba(0, 255, 204, 0.18));
}
.product-img-label {
    font-family: 'Orbitron', sans-serif;
    font-size: 11px;
    letter-spacing: 2px;
    color: var(--color-primary);
    opacity: 0.7;
    text-align: center;
}
.product-img-specs {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-width: 160px;
    flex-shrink: 0;
}
.spec-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    background: rgba(0, 200, 255, 0.05);
    border: 1px solid rgba(0, 200, 255, 0.12);
    border-radius: var(--radius-sm);
    font-size: 13px;
}
.product-img-specs-blue .spec-row {
    background: rgba(0, 102, 255, 0.06);
    border-color: rgba(0, 102, 255, 0.15);
}
.product-img-specs-green .spec-row {
    background: rgba(0, 255, 204, 0.05);
    border-color: rgba(0, 255, 204, 0.12);
}
.spec-key {
    color: var(--color-text-dim);
    font-size: 12px;
    flex-shrink: 0;
}
.spec-val {
    color: var(--color-primary);
    font-family: 'Orbitron', sans-serif;
    font-size: 12px;
    font-weight: 600;
    text-align: right;
}
@media (max-width: 768px) {
    .product-image-showcase {
        flex-direction: column;
        padding: 24px 20px;
        gap: 20px;
    }
    .product-img-specs {
        flex-direction: row;
        flex-wrap: wrap;
        min-width: unset;
    }
    .spec-row {
        flex: 1;
        min-width: 120px;
    }
}
.feat-icon {
    font-size: 22px;
    flex-shrink: 0;
    margin-top: 2px;
}
.feature-item strong {
    display: block;
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: 4px;
    font-size: 14px;
}
.product-process {
    padding: 28px;
}
.product-process h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 24px;
}
.process-steps { display: flex; flex-direction: column; }
.process-step {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: rgba(0, 200, 255, 0.04);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0, 200, 255, 0.08);
}
.step-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}
.step-info strong {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
}
.step-info span {
    font-size: 12px;
    color: var(--color-text-muted);
}
.process-arrow {
    text-align: center;
    color: var(--color-primary);
    font-size: 18px;
    padding: 4px 0;
    opacity: 0.6;
}
/* 摄像头 */
.camera-types {
    padding: 28px;
}
.camera-types h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 24px;
}
.camera-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}
.camera-type {
    text-align: center;
    padding: 16px 12px;
    background: rgba(0, 102, 255, 0.05);
    border: 1px solid rgba(0, 102, 255, 0.1);
    border-radius: var(--radius-sm);
}
.cam-icon {
    font-size: 24px;
    margin-bottom: 8px;
}
.camera-type strong {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 4px;
}
.camera-type span {
    font-size: 11px;
    color: var(--color-text-muted);
}
.tech-params {
    display: flex;
    gap: 16px;
    justify-content: space-around;
}
.param {
    text-align: center;
}
.param-val {
    display: block;
    font-family: 'Orbitron', sans-serif;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
}
.param-key {
    font-size: 11px;
    color: var(--color-text-muted);
}
/* 雷达 */
.radar-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}
.radar-params {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.radar-param {
    padding: 24px;
    text-align: center;
}
.rp-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 8px;
}
.rp-label {
    font-size: 14px;
    color: var(--color-text);
    font-weight: 500;
    margin-bottom: 4px;
}
.rp-tech {
    font-size: 12px;
    color: var(--color-text-muted);
}
.radar-tech {
    padding: 32px;
}
.radar-tech h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--color-text);
}
.tech-flow {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}
.tf-step {
    padding: 10px 16px;
    background: rgba(0, 255, 204, 0.06);
    border: 1px solid rgba(0, 255, 204, 0.15);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--color-text);
    text-align: center;
    flex: 1;
    min-width: 100px;
}
.tf-arrow {
    color: var(--color-accent);
    font-size: 16px;
    flex-shrink: 0;
}
.app-scenarios {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.scenario {
    padding: 12px 16px;
    background: rgba(0, 255, 204, 0.04);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 13px;
    color: var(--color-text-muted);
}

/* ================================================
   智能制造
   ================================================ */
.manufacturing-section {
    background: transparent;
}
.mfg-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 32px;
    margin-bottom: 64px;
}
.mfg-highlight {
    padding: 48px 40px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
}
.mfg-stat {
    display: flex;
    align-items: baseline;
    gap: 4px;
    justify-content: center;
}
.big-num {
    font-family: 'Orbitron', sans-serif;
    font-size: 56px;
    font-weight: 900;
    line-height: 1;
}
.big-unit {
    font-size: 22px;
    font-weight: 600;
    color: var(--color-primary);
}
.mfg-note {
    font-size: 13px;
    color: var(--color-text-muted);
    padding: 8px 16px;
    background: rgba(0, 200, 255, 0.06);
    border-radius: 20px;
    border: 1px solid rgba(0, 200, 255, 0.1);
}
.mfg-note strong {
    color: var(--color-primary);
}
.mfg-process {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.mfg-modes {
    display: flex;
    flex-direction: column;
    gap: 20px;
    height: 100%;
    justify-content: center;
}
.mode-card {
    padding: 24px 28px;
    display: flex;
    align-items: center;
    gap: 20px;
}
.mode-num {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Orbitron', sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}
.mode-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 4px;
}
.mode-card p {
    font-size: 13px;
    color: var(--color-text-muted);
}
/* 工厂与设备图片 */
.mfg-image-showcase {
    margin-bottom: 64px;
}
.mfg-images-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}
.mfg-img-card {
    padding: 28px 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}
.mfg-img-wrap {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}
.mfg-svg {
    width: 100%;
    max-width: 420px;
    height: auto;
    filter: drop-shadow(0 0 18px rgba(0, 200, 255, 0.12));
}
.mfg-img-label {
    font-family: 'Orbitron', sans-serif;
    font-size: 11px;
    letter-spacing: 2px;
    color: var(--color-primary);
    opacity: 0.7;
    text-align: center;
}
/* 实景照片 */
.photo-gallery {
    margin-bottom: 64px;
}
.gallery-desc {
    text-align: center;
    font-size: 13px;
    color: var(--color-text-dim);
    margin-bottom: 28px;
    letter-spacing: 0.5px;
}
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.photo-placeholder {
    padding: 12px;
    transition: all var(--transition);
}
.photo-placeholder:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}
.photo-placeholder-inner {
    width: 100%;
    aspect-ratio: 10 / 7;
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.photo-placeholder-inner svg {
    width: 100%;
    height: 100%;
    display: block;
}
/* 认证 */
.quality-section { margin-bottom: 48px; }
.sub-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 32px;
    text-align: center;
}
.cert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.cert-card {
    padding: 32px 20px;
    text-align: center;
}
.cert-badge {
    font-family: 'Orbitron', sans-serif;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.cert-name {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 16px;
    line-height: 1.5;
}
.cert-status {
    font-size: 13px;
    font-weight: 600;
}
.certified { color: var(--color-accent); }
/* 质量指标 */
.quality-metrics {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 40px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}
.qm-item {
    display: flex;
    align-items: center;
    gap: 20px;
}
.qm-bar-wrap {
    flex: 1;
    height: 8px;
    background: rgba(255,255,255,0.06);
    border-radius: 4px;
    overflow: hidden;
}
.qm-bar {
    height: 100%;
    border-radius: 4px;
    background: var(--gradient-primary);
    width: 0;
    transition: width 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.qm-bar.error-bar {
    background: linear-gradient(90deg, #00ffcc, #00ff88);
}
.qm-info {
    display: flex;
    justify-content: space-between;
    min-width: 200px;
}
.qm-label {
    font-size: 14px;
    color: var(--color-text-muted);
}
.qm-val {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-primary);
    font-family: 'Orbitron', sans-serif;
}

/* ================================================
   研发创新
   ================================================ */
.innovation-section {
    background: transparent;
}
.rd-hero {
    display: flex;
    align-items: center;
    gap: 48px;
    padding: 48px 56px;
    margin-bottom: 56px;
    flex-wrap: wrap;
}
.rd-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
    flex-shrink: 0;
}
.rd-stat .big-num {
    font-size: 48px;
}
.rd-stat span {
    font-size: 14px;
    color: var(--color-text-muted);
}
.rd-center {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text);
    flex: 1;
    text-align: center;
}
.rd-desc {
    font-size: 13px;
    color: var(--color-text-muted);
    flex: 1;
    text-align: right;
    line-height: 1.8;
}
.tech-directions {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}
.td-card {
    padding: 32px;
    position: relative;
    overflow: hidden;
}
.td-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition);
    transform-origin: left;
}
.td-card:hover::before { transform: scaleX(1); }
.td-num {
    font-family: 'Orbitron', sans-serif;
    font-size: 42px;
    font-weight: 900;
    color: rgba(0, 200, 255, 0.12);
    line-height: 1;
    margin-bottom: 16px;
}
.td-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
    line-height: 1.5;
}
.td-card p {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: 16px;
}
.td-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(0, 200, 255, 0.08);
    border: 1px solid rgba(0, 200, 255, 0.15);
    border-radius: 12px;
    font-size: 11px;
    color: var(--color-primary);
    font-family: 'Orbitron', sans-serif;
}
.tech-caps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.tc-item {
    padding: 28px 20px;
    text-align: center;
}
.tc-icon {
    font-size: 32px;
    margin-bottom: 12px;
}
.tc-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
}
.tc-val {
    font-size: 12px;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* ================================================
   全球市场
   ================================================ */
.market-section {
    background: transparent;
}
.global-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}
.global-map {
    aspect-ratio: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 40px;
    background:
        radial-gradient(circle at 50% 50%, rgba(0, 200, 255, 0.05) 0%, transparent 70%),
        var(--color-surface);
}
.global-map::before {
    content: '';
    position: absolute;
    inset: 20px;
    border-radius: 50%;
    border: 1px dashed rgba(0, 200, 255, 0.15);
    animation: map-rotate 30s linear infinite;
}
.global-map::after {
    content: '';
    position: absolute;
    inset: 40px;
    border-radius: 50%;
    border: 1px dashed rgba(0, 102, 255, 0.1);
    animation: map-rotate 20s linear infinite reverse;
}
@keyframes map-rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
.map-center {
    text-align: center;
    z-index: 2;
}
.map-num {
    font-family: 'Orbitron', sans-serif;
    font-size: 64px;
    font-weight: 900;
    line-height: 1;
}
.map-label {
    font-size: 16px;
    color: var(--color-text-muted);
    margin-top: 8px;
}
.map-regions { position: absolute; inset: 0; z-index: 2; }
.region-dot {
    position: absolute;
    cursor: pointer;
}
.region-pulse {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-primary);
    box-shadow: 0 0 12px var(--color-primary);
    animation: region-pulse 2s ease-out infinite;
}
@keyframes region-pulse {
    0% { transform: scale(1); opacity: 1; box-shadow: 0 0 0 0 rgba(0,200,255,0.6); }
    70% { transform: scale(1.1); opacity: 0.8; box-shadow: 0 0 0 12px rgba(0,200,255,0); }
    100% { transform: scale(1); opacity: 1; }
}
.region-tooltip {
    position: absolute;
    top: -32px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(3, 11, 26, 0.9);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 12px;
    color: var(--color-text);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}
.region-dot:hover .region-tooltip { opacity: 1; }
.fusion-tech h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 24px;
}
.fusion-levels {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.fl-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
}
.fl-num {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}
.fl-card strong {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
}
.fl-card p {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ================================================
   未来愿景
   ================================================ */
.vision-section {
    background: transparent;
}
.vision-strategies {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}
.vs-card {
    padding: 36px 28px;
    text-align: center;
}
.vs-icon {
    font-size: 40px;
    margin-bottom: 16px;
    display: block;
}
.vs-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
    line-height: 1.4;
}
.vs-card p {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.8;
}
.target-2026 {
    padding: 48px 56px;
    text-align: center;
    margin-bottom: 48px;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(0, 200, 255, 0.08) 0%, transparent 70%),
        var(--color-surface);
}
.t26-header {
    font-family: 'Orbitron', sans-serif;
    font-size: 13px;
    letter-spacing: 4px;
    color: var(--color-primary);
    margin-bottom: 24px;
}
.t26-main {
    margin-bottom: 32px;
}
.t26-main .big-num { font-size: 72px; }
.t26-items {
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
}
.t26-item {
    padding: 10px 20px;
    background: rgba(0, 200, 255, 0.06);
    border: 1px solid rgba(0, 200, 255, 0.15);
    border-radius: 20px;
    font-size: 13px;
    color: var(--color-text-muted);
}
.vision-statement {
    text-align: center;
}
.vs-motto {
    font-size: clamp(20px, 3vw, 32px);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 48px;
    line-height: 1.4;
}
.vs-values {
    display: flex;
    gap: 40px;
    justify-content: center;
    flex-wrap: wrap;
}
.v-val {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
}
.v-icon {
    font-size: 36px;
}
.v-val strong {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
}
.v-val span {
    font-size: 13px;
    color: var(--color-text-muted);
}

/* ================================================
   联系我们
   ================================================ */
.contact-section {
    background: transparent;
}
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}
.contact-info {
    padding: 48px 40px;
}
.contact-info h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 16px;
}
.ci-desc {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: 32px;
}
.ci-items {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.ci-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--color-text-muted);
}
.ci-icon { font-size: 18px; }
.contact-form {
    padding: 48px 40px;
}
.contact-form h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 28px;
}
.form-group { margin-bottom: 20px; }
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 14px;
    font-family: inherit;
    transition: all var(--transition);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-dim);
}
.form-group select option {
    background: #050f22;
    color: var(--color-text);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    background: rgba(0, 200, 255, 0.04);
    box-shadow: 0 0 0 3px rgba(0, 200, 255, 0.08);
}

/* ================================================
   Footer
   ================================================ */
.footer {
    background: #020810;
    border-top: 1px solid var(--color-border);
    padding: 60px 0 32px;
    position: relative;
    z-index: 1;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}
.footer-brand p {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-top: 16px;
    line-height: 1.7;
}
.footer-links h4, .footer-certs h4, .footer-qr h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}
.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-links a {
    font-size: 13px;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition);
}
.footer-links a:hover { color: var(--color-primary); }
.footer-qr {
    display: flex;
    flex-direction: row;
    gap: 24px;
}
.qr-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}
.qr-placeholder {
    width: 100px;
    height: 100px;
    background: rgba(0, 200, 255, 0.06);
    border: 1px solid rgba(0, 200, 255, 0.2);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: var(--color-text-dim);
    text-align: center;
    line-height: 1.4;
    padding: 4px;
}
.qr-img {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    object-fit: cover;
}
.qr-label {
    font-size: 11px;
    color: var(--color-text-muted);
    text-align: center;
}
.cert-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.cert-b {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(0, 200, 255, 0.06);
    border: 1px solid rgba(0, 200, 255, 0.2);
    border-radius: 4px;
    font-size: 11px;
    color: var(--color-primary);
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 0.5px;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding-top: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    text-align: center;
}
.footer-bottom p {
    font-size: 12px;
    color: var(--color-text-dim);
}

/* ================================================
   响应式
   ================================================ */
@media (max-width: 1024px) {
    .market-data-grid { grid-template-columns: repeat(2, 1fr); }
    .about-grid { grid-template-columns: 1fr; }
    .product-grid, .product-grid-reverse { grid-template-columns: 1fr; }
    .radar-grid { grid-template-columns: 1fr; }
    .global-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .tech-caps { grid-template-columns: repeat(2, 1fr); }
    .cert-grid { grid-template-columns: repeat(2, 1fr); }
    .mfg-grid { grid-template-columns: 1fr; }
    .mfg-images-row { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; }
    .rd-hero { flex-direction: column; gap: 24px; }
    .rd-desc { text-align: center; }
}

@media (max-width: 768px) {
    .container { padding: 0 24px; }
    .hero-content { padding: 40px 24px; }
    .hero-visual { display: none; }
    .hero-stats { flex-wrap: wrap; }
    .stat-divider { display: none; }
    .stat-item { flex: 1 1 calc(50% - 8px); min-width: 120px; }
    .nav-menu { display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; background: rgba(3,11,26,0.97); flex-direction: column; padding: 24px; border-bottom: 1px solid var(--color-border); }
    .nav-menu.open { display: flex; }
    .nav-toggle { display: flex; }
    .section { padding: 64px 0; }
    .product-block { padding: 28px 20px; }
    .product-features { grid-template-columns: 1fr; }
    .tech-directions { grid-template-columns: 1fr; }
    .vision-strategies { grid-template-columns: 1fr; }
    .market-data-grid { grid-template-columns: 1fr 1fr; }
    .camera-grid { grid-template-columns: 1fr; }
    .arch-layers { flex-direction: column; }
    .arch-arrow { transform: rotate(90deg); }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .target-2026 { padding: 32px 20px; }
    .t26-main .big-num { font-size: 56px; }
    .tech-flow { flex-direction: column; }
    .tf-arrow { transform: rotate(90deg); }
    .cert-grid { grid-template-columns: 1fr 1fr; }
    .tech-caps { grid-template-columns: 1fr 1fr; }
    .mfg-highlight { padding: 32px 24px; }
    .quality-metrics { padding: 24px; }
    .qm-info { min-width: 150px; }
    .rd-hero { padding: 28px 24px; }
    .contact-info, .contact-form { padding: 28px 24px; }
    .hero-actions { flex-direction: column; align-items: flex-start; }
    .vs-values { gap: 24px; }
    .trends-row { flex-direction: column; }
    .mfg-images-row { grid-template-columns: 1fr; }
    .mfg-img-card { padding: 20px 16px; }
    .gallery-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 32px; }
    .section-title { font-size: 24px; }
    .stat-number { font-size: 22px; }
    .market-data-grid { grid-template-columns: 1fr; }
    .cert-grid { grid-template-columns: 1fr; }
    .tech-caps { grid-template-columns: 1fr; }
    .camera-grid { grid-template-columns: 1fr; }
    .tech-params { flex-direction: column; align-items: center; }
    .hero-stats { gap: 16px; }
    .stat-item { flex: 1 1 100%; }
    .t26-items { flex-direction: column; align-items: center; }
    .gallery-grid { grid-template-columns: 1fr; }
}

/* ================================================
   返回顶部按钮
   ================================================ */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 30px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    box-shadow: 0 4px 15px rgba(0, 200, 255, 0.3);
}
.back-to-top.show {
    opacity: 1;
    visibility: visible;
}
.back-to-top svg {
    width: 20px;
    height: 20px;
    color: #fff;
}
.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 200, 255, 0.5);
}

/* ================================================
   加载动画
   ================================================ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.hero-badge, .hero-title, .hero-subtitle, .hero-stats, .hero-actions {
    animation: fadeInUp 0.8s ease both;
}
.hero-badge { animation-delay: 0.1s; }
.hero-title { animation-delay: 0.25s; }
.hero-subtitle { animation-delay: 0.4s; }
.hero-stats { animation-delay: 0.55s; }
.hero-actions { animation-delay: 0.7s; }

/* 滚动进度条 */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    background: var(--gradient-primary);
    z-index: 2000;
    transition: width 0.1s linear;
    box-shadow: 0 0 8px rgba(0, 200, 255, 0.6);
}

/* 自定义滚动条 */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #030b1a; }
::-webkit-scrollbar-thumb { background: rgba(0, 200, 255, 0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0, 200, 255, 0.5); }

/* 鼠标光晕 */
.cursor-glow {
    position: fixed;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 200, 255, 0.04) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: transform 0.1s linear;
}